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[hengband/hengband.git] / src / object2.c

/*!
 * @file object2.c
 * @brief ¥ª¥Ö¥¸¥§¥¯¥È¤Î¼ÂÁõ / Object code, part 2
 * @date 2014/01/11
 * @author
 * Copyright (c) 1997 Ben Harrison, James E. Wilson, Robert A. Koeneke\n
 *\n
 * This software may be copied and distributed for educational, research,\n
 * and not for profit purposes provided that this copyright and statement\n
 * are included in all such copies.  Other copyrights may also apply.\n
 * 2014 Deskull rearranged comment for Doxygen.\n
 */

#include "angband.h"

#include "kajitips.h"

/*!
 * @brief ¾²¾å¡¢¥â¥ó¥¹¥¿¡¼½ê»ý¤Ç¥¹¥¿¥Ã¥¯¤µ¤ì¤¿¥¢¥¤¥Æ¥à¤òºï½ü¤·¥¹¥¿¥Ã¥¯¤òÊä´°¤¹¤ë / Excise a dungeon object from any stacks
 * @param o_idx ºï½üÂоݤΥª¥Ö¥¸¥§¥¯¥È¹½Â¤ÂΥݥ¤¥ó¥¿
 * @return ¤Ê¤·
 */
void excise_object_idx(int o_idx)
{
        object_type *j_ptr;

        s16b this_o_idx, next_o_idx = 0;

        s16b prev_o_idx = 0;


        /* Object */
        j_ptr = &o_list[o_idx];

        /* Monster */
        if (j_ptr->held_m_idx)
        {
                monster_type *m_ptr;

                /* Monster */
                m_ptr = &m_list[j_ptr->held_m_idx];

                /* Scan all objects in the grid */
                for (this_o_idx = m_ptr->hold_o_idx; this_o_idx; this_o_idx = next_o_idx)
                {
                        object_type *o_ptr;

                        /* Acquire object */
                        o_ptr = &o_list[this_o_idx];

                        /* Acquire next object */
                        next_o_idx = o_ptr->next_o_idx;

                        /* Done */
                        if (this_o_idx == o_idx)
                        {
                                /* No previous */
                                if (prev_o_idx == 0)
                                {
                                        /* Remove from list */
                                        m_ptr->hold_o_idx = next_o_idx;
                                }

                                /* Real previous */
                                else
                                {
                                        object_type *k_ptr;

                                        /* Previous object */
                                        k_ptr = &o_list[prev_o_idx];

                                        /* Remove from list */
                                        k_ptr->next_o_idx = next_o_idx;
                                }

                                /* Forget next pointer */
                                o_ptr->next_o_idx = 0;

                                /* Done */
                                break;
                        }

                        /* Save prev_o_idx */
                        prev_o_idx = this_o_idx;
                }
        }

        /* Dungeon */
        else
        {
                cave_type *c_ptr;

                int y = j_ptr->iy;
                int x = j_ptr->ix;

                /* Grid */
                c_ptr = &cave[y][x];

                /* Scan all objects in the grid */
                for (this_o_idx = c_ptr->o_idx; this_o_idx; this_o_idx = next_o_idx)
                {
                        object_type *o_ptr;

                        /* Acquire object */
                        o_ptr = &o_list[this_o_idx];

                        /* Acquire next object */
                        next_o_idx = o_ptr->next_o_idx;

                        /* Done */
                        if (this_o_idx == o_idx)
                        {
                                /* No previous */
                                if (prev_o_idx == 0)
                                {
                                        /* Remove from list */
                                        c_ptr->o_idx = next_o_idx;
                                }

                                /* Real previous */
                                else
                                {
                                        object_type *k_ptr;

                                        /* Previous object */
                                        k_ptr = &o_list[prev_o_idx];

                                        /* Remove from list */
                                        k_ptr->next_o_idx = next_o_idx;
                                }

                                /* Forget next pointer */
                                o_ptr->next_o_idx = 0;

                                /* Done */
                                break;
                        }

                        /* Save prev_o_idx */
                        prev_o_idx = this_o_idx;
                }
        }
}

/*!
 * @brief ¥ª¥Ö¥¸¥§¥¯¥È¤òºï½ü¤¹¤ë /
 * Delete a dungeon object
 * @param o_idx ºï½üÂоݤΥª¥Ö¥¸¥§¥¯¥È¹½Â¤ÂΥݥ¤¥ó¥¿
 * @return ¤Ê¤·
 * @details
 * Handle "stacks" of objects correctly.
 */
void delete_object_idx(int o_idx)
{
        object_type *j_ptr;

        /* Excise */
        excise_object_idx(o_idx);

        /* Object */
        j_ptr = &o_list[o_idx];

        /* Dungeon floor */
        if (!(j_ptr->held_m_idx))
        {
                int y, x;

                /* Location */
                y = j_ptr->iy;
                x = j_ptr->ix;

                /* Visual update */
                lite_spot(y, x);
        }

        /* Wipe the object */
        object_wipe(j_ptr);

        /* Count objects */
        o_cnt--;
}


/*!
 * @brief ¥Õ¥í¥¢¤Ë¥Þ¥¹¤ËÍî¤Á¤Æ¤¤¤ë¥ª¥Ö¥¸¥§¥¯¥È¤òÁ´¤Æºï½ü¤¹¤ë / Deletes all objects at given location
 * Delete a dungeon object
 * @param y ºï½ü¤·¤¿¥Õ¥í¥¢¥Þ¥¹¤ÎYºÂɸ
 * @param x ºï½ü¤·¤¿¥Õ¥í¥¢¥Þ¥¹¤ÎXºÂɸ
 * @return ¤Ê¤·
 */
void delete_object(int y, int x)
{
        cave_type *c_ptr;

        s16b this_o_idx, next_o_idx = 0;


        /* Refuse "illegal" locations */
        if (!in_bounds(y, x)) return;


        /* Grid */
        c_ptr = &cave[y][x];

        /* Scan all objects in the grid */
        for (this_o_idx = c_ptr->o_idx; this_o_idx; this_o_idx = next_o_idx)
        {
                object_type *o_ptr;

                /* Acquire object */
                o_ptr = &o_list[this_o_idx];

                /* Acquire next object */
                next_o_idx = o_ptr->next_o_idx;

                /* Wipe the object */
                object_wipe(o_ptr);

                /* Count objects */
                o_cnt--;
        }

        /* Objects are gone */
        c_ptr->o_idx = 0;

        /* Visual update */
        lite_spot(y, x);
}


/*!
 * @brief ¥°¥í¡¼¥Ð¥ë¥ª¥Ö¥¸¥§¥¯¥ÈÇÛÎó¤ËÂФ·»ØÄêÈϰϤΥª¥Ö¥¸¥§¥¯¥È¤òÀ°Íý¤·¤ÆID¤Î¼ã¤¤½ç¤Ë´ó¤»¤ë /
 * Move an object from index i1 to index i2 in the object list
 * @param i1 À°Íý¤·¤¿¤¤ÇÛÎó¤Î»ÏÅÀ
 * @param i2 À°Íý¤·¤¿¤¤ÇÛÎó¤Î½ªÅÀ
 * @return ¤Ê¤·
 */
static void compact_objects_aux(int i1, int i2)
{
        int i;

        cave_type *c_ptr;

        object_type *o_ptr;


        /* Do nothing */
        if (i1 == i2) return;


        /* Repair objects */
        for (i = 1; i < o_max; i++)
        {
                /* Acquire object */
                o_ptr = &o_list[i];

                /* Skip "dead" objects */
                if (!o_ptr->k_idx) continue;

                /* Repair "next" pointers */
                if (o_ptr->next_o_idx == i1)
                {
                        /* Repair */
                        o_ptr->next_o_idx = i2;
                }
        }


        /* Acquire object */
        o_ptr = &o_list[i1];


        /* Monster */
        if (o_ptr->held_m_idx)
        {
                monster_type *m_ptr;

                /* Acquire monster */
                m_ptr = &m_list[o_ptr->held_m_idx];

                /* Repair monster */
                if (m_ptr->hold_o_idx == i1)
                {
                        /* Repair */
                        m_ptr->hold_o_idx = i2;
                }
        }

        /* Dungeon */
        else
        {
                int y, x;

                /* Acquire location */
                y = o_ptr->iy;
                x = o_ptr->ix;

                /* Acquire grid */
                c_ptr = &cave[y][x];

                /* Repair grid */
                if (c_ptr->o_idx == i1)
                {
                        /* Repair */
                        c_ptr->o_idx = i2;
                }
        }


        /* Structure copy */
        o_list[i2] = o_list[i1];

        /* Wipe the hole */
        object_wipe(o_ptr);
}


/*!
 * @brief ¥°¥í¡¼¥Ð¥ë¥ª¥Ö¥¸¥§¥¯¥ÈÇÛÎ󤫤éÍ¥ÀèÅÙ¤ÎÄ㤤¤â¤Î¤òºï½ü¤·¡¢¥Ç¡¼¥¿¤ò°µ½Ì¤¹¤ë¡£ /
 * Compact and Reorder the object list.
 * @param size ºÇÄã¤Ç¤â¸º¤é¤·¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¿ô¤Î¿å½à
 * @return ¤Ê¤·
 * @details
 * ¡Ê´í¸±¤Ê¤Î¤Ç»ÈÍѤˤÏÃí°Õ¤¹¤ë¤³¤È¡Ë
 * This function can be very dangerous, use with caution!\n
 *\n
 * When actually "compacting" objects, we base the saving throw on a\n
 * combination of object level, distance from player, and current\n
 * "desperation".\n
 *\n
 * After "compacting" (if needed), we "reorder" the objects into a more\n
 * compact order, and we reset the allocation info, and the "live" array.\n
 */
void compact_objects(int size)
{
        int i, y, x, num, cnt;
        int cur_lev, cur_dis, chance;
        object_type *o_ptr;


        /* Compact */
        if (size)
        {
                /* Message */
#ifdef JP
                msg_print("¥¢¥¤¥Æ¥à¾ðÊó¤ò°µ½Ì¤·¤Æ¤¤¤Þ¤¹...");
#else
                msg_print("Compacting objects...");
#endif


                /* Redraw map */
                p_ptr->redraw |= (PR_MAP);

                /* Window stuff */
                p_ptr->window |= (PW_OVERHEAD | PW_DUNGEON);
        }


        /* Compact at least 'size' objects */
        for (num = 0, cnt = 1; num < size; cnt++)
        {
                /* Get more vicious each iteration */
                cur_lev = 5 * cnt;

                /* Get closer each iteration */
                cur_dis = 5 * (20 - cnt);

                /* Examine the objects */
                for (i = 1; i < o_max; i++)
                {
                        o_ptr = &o_list[i];

                        /* Skip dead objects */
                        if (!o_ptr->k_idx) continue;

                        /* Hack -- High level objects start out "immune" */
                        if (k_info[o_ptr->k_idx].level > cur_lev) continue;

                        /* Monster */
                        if (o_ptr->held_m_idx)
                        {
                                monster_type *m_ptr;

                                /* Acquire monster */
                                m_ptr = &m_list[o_ptr->held_m_idx];

                                /* Get the location */
                                y = m_ptr->fy;
                                x = m_ptr->fx;

                                /* Monsters protect their objects */
                                if (randint0(100) < 90) continue;
                        }

                        /* Dungeon */
                        else
                        {
                                /* Get the location */
                                y = o_ptr->iy;
                                x = o_ptr->ix;
                        }

                        /* Nearby objects start out "immune" */
                        if ((cur_dis > 0) && (distance(py, px, y, x) < cur_dis)) continue;

                        /* Saving throw */
                        chance = 90;

                        /* Hack -- only compact artifacts in emergencies */
                        if ((object_is_fixed_artifact(o_ptr) || o_ptr->art_name) &&
                            (cnt < 1000)) chance = 100;

                        /* Apply the saving throw */
                        if (randint0(100) < chance) continue;

                        /* Delete the object */
                        delete_object_idx(i);

                        /* Count it */
                        num++;
                }
        }


        /* Excise dead objects (backwards!) */
        for (i = o_max - 1; i >= 1; i--)
        {
                o_ptr = &o_list[i];

                /* Skip real objects */
                if (o_ptr->k_idx) continue;

                /* Move last object into open hole */
                compact_objects_aux(o_max - 1, i);

                /* Compress "o_max" */
                o_max--;
        }
}


/*!
 * @brief ¥°¥í¡¼¥Ð¥ë¥ª¥Ö¥¸¥§¥¯¥ÈÇÛÎó¤ò½é´ü²½¤¹¤ë /
 * Delete all the items when player leaves the level
 * @note we do NOT visually reflect these (irrelevant) changes
 * @details
 * Hack -- we clear the "c_ptr->o_idx" field for every grid,
 * and the "m_ptr->next_o_idx" field for every monster, since
 * we know we are clearing every object.  Technically, we only
 * clear those fields for grids/monsters containing objects,
 * and we clear it once for every such object.
 * @return ¤Ê¤·
 */
void wipe_o_list(void)
{
        int i;

        /* Delete the existing objects */
        for (i = 1; i < o_max; i++)
        {
                object_type *o_ptr = &o_list[i];

                /* Skip dead objects */
                if (!o_ptr->k_idx) continue;

                /* Mega-Hack -- preserve artifacts */
                if (!character_dungeon || preserve_mode)
                {
                        /* Hack -- Preserve unknown artifacts */
                        if (object_is_fixed_artifact(o_ptr) && !object_is_known(o_ptr))
                        {
                                /* Mega-Hack -- Preserve the artifact */
                                a_info[o_ptr->name1].cur_num = 0;
                        }
                }

                /* Monster */
                if (o_ptr->held_m_idx)
                {
                        monster_type *m_ptr;

                        /* Monster */
                        m_ptr = &m_list[o_ptr->held_m_idx];

                        /* Hack -- see above */
                        m_ptr->hold_o_idx = 0;
                }

                /* Dungeon */
                else
                {
                        cave_type *c_ptr;

                        /* Access location */
                        int y = o_ptr->iy;
                        int x = o_ptr->ix;

                        /* Access grid */
                        c_ptr = &cave[y][x];

                        /* Hack -- see above */
                        c_ptr->o_idx = 0;
                }

                /* Wipe the object */
                object_wipe(o_ptr);
        }

        /* Reset "o_max" */
        o_max = 1;

        /* Reset "o_cnt" */
        o_cnt = 0;
}


/*!
 * @brief ¥°¥í¡¼¥Ð¥ë¥ª¥Ö¥¸¥§¥¯¥ÈÇÛÎ󤫤é¶õ¤­¤ò¼èÆÀ¤¹¤ë /
 * Acquires and returns the index of a "free" object.
 * @return ³«¤¤¤Æ¤¤¤ë¥ª¥Ö¥¸¥§¥¯¥ÈÍ×ÁǤÎID
 * @details
 * This routine should almost never fail, but in case it does,
 * we must be sure to handle "failure" of this routine.
 */
s16b o_pop(void)
{
        int i;


        /* Initial allocation */
        if (o_max < max_o_idx)
        {
                /* Get next space */
                i = o_max;

                /* Expand object array */
                o_max++;

                /* Count objects */
                o_cnt++;

                /* Use this object */
                return (i);
        }


        /* Recycle dead objects */
        for (i = 1; i < o_max; i++)
        {
                object_type *o_ptr;

                /* Acquire object */
                o_ptr = &o_list[i];

                /* Skip live objects */
                if (o_ptr->k_idx) continue;

                /* Count objects */
                o_cnt++;

                /* Use this object */
                return (i);
        }


        /* Warn the player (except during dungeon creation) */
#ifdef JP
        if (character_dungeon) msg_print("¥¢¥¤¥Æ¥à¤¬Â¿¤¹¤®¤ë¡ª");
#else
        if (character_dungeon) msg_print("Too many objects!");
#endif


        /* Oops */
        return (0);
}


/*!
 * @brief ¥ª¥Ö¥¸¥§¥¯¥ÈÀ¸À®¥Æ¡¼¥Ö¥ë¤ËÀ¸À®À©Ìó¤ò²Ã¤¨¤ë /
 * Apply a "object restriction function" to the "object allocation table"
 * @return ¾ï¤Ë0¤òÊÖ¤¹¡£
 * @details À¸À®¤ÎÀ©Ìó¤Ï¥°¥í¡¼¥Ð¥ë¤Îget_obj_num_hook´Ø¿ô¥Ý¥¤¥ó¥¿¤Ç²Ã¤¨¤ë
 */
static errr get_obj_num_prep(void)
{
        int i;

        /* Get the entry */
        alloc_entry *table = alloc_kind_table;

        /* Scan the allocation table */
        for (i = 0; i < alloc_kind_size; i++)
        {
                /* Accept objects which pass the restriction, if any */
                if (!get_obj_num_hook || (*get_obj_num_hook)(table[i].index))
                {
                        /* Accept this object */
                        table[i].prob2 = table[i].prob1;
                }

                /* Do not use this object */
                else
                {
                        /* Decline this object */
                        table[i].prob2 = 0;
                }
        }

        /* Success */
        return (0);
}


/*!
 * @brief ¥ª¥Ö¥¸¥§¥¯¥ÈÀ¸À®¥Æ¡¼¥Ö¥ë¤«¤é¥¢¥¤¥Æ¥à¤ò¼èÆÀ¤¹¤ë /
 * Choose an object kind that seems "appropriate" to the given level
 * @param level À¸À®³¬
 * @return Áª¤Ð¤ì¤¿¥ª¥Ö¥¸¥§¥¯¥È¥Ù¡¼¥¹ID
 * @details
 * This function uses the "prob2" field of the "object allocation table",\n
 * and various local information, to calculate the "prob3" field of the\n
 * same table, which is then used to choose an "appropriate" object, in\n
 * a relatively efficient manner.\n
 *\n
 * It is (slightly) more likely to acquire an object of the given level\n
 * than one of a lower level.  This is done by choosing several objects\n
 * appropriate to the given level and keeping the "hardest" one.\n
 *\n
 * Note that if no objects are "appropriate", then this function will\n
 * fail, and return zero, but this should *almost* never happen.\n
 */
s16b get_obj_num(int level)
{
        int             i, j, p;
        int             k_idx;
        long            value, total;
        object_kind     *k_ptr;
        alloc_entry     *table = alloc_kind_table;

        if (level > MAX_DEPTH - 1) level = MAX_DEPTH - 1;

        /* Boost level */
        if ((level > 0) && !(d_info[dungeon_type].flags1 & DF1_BEGINNER))
        {
                /* Occasional "boost" */
                if (one_in_(GREAT_OBJ))
                {
                        /* What a bizarre calculation */
                        level = 1 + (level * MAX_DEPTH / randint1(MAX_DEPTH));
                }
        }

        /* Reset total */
        total = 0L;

        /* Process probabilities */
        for (i = 0; i < alloc_kind_size; i++)
        {
                /* Objects are sorted by depth */
                if (table[i].level > level) break;

                /* Default */
                table[i].prob3 = 0;

                /* Access the index */
                k_idx = table[i].index;

                /* Access the actual kind */
                k_ptr = &k_info[k_idx];

                /* Hack -- prevent embedded chests */
                if (opening_chest && (k_ptr->tval == TV_CHEST)) continue;

                /* Accept */
                table[i].prob3 = table[i].prob2;

                /* Total */
                total += table[i].prob3;
        }

        /* No legal objects */
        if (total <= 0) return (0);


        /* Pick an object */
        value = randint0(total);

        /* Find the object */
        for (i = 0; i < alloc_kind_size; i++)
        {
                /* Found the entry */
                if (value < table[i].prob3) break;

                /* Decrement */
                value = value - table[i].prob3;
        }


        /* Power boost */
        p = randint0(100);

        /* Try for a "better" object once (50%) or twice (10%) */
        if (p < 60)
        {
                /* Save old */
                j = i;

                /* Pick a object */
                value = randint0(total);

                /* Find the object */
                for (i = 0; i < alloc_kind_size; i++)
                {
                        /* Found the entry */
                        if (value < table[i].prob3) break;

                        /* Decrement */
                        value = value - table[i].prob3;
                }

                /* Keep the "best" one */
                if (table[i].level < table[j].level) i = j;
        }

        /* Try for a "better" object twice (10%) */
        if (p < 10)
        {
                /* Save old */
                j = i;

                /* Pick a object */
                value = randint0(total);

                /* Find the object */
                for (i = 0; i < alloc_kind_size; i++)
                {
                        /* Found the entry */
                        if (value < table[i].prob3) break;

                        /* Decrement */
                        value = value - table[i].prob3;
                }

                /* Keep the "best" one */
                if (table[i].level < table[j].level) i = j;
        }


        /* Result */
        return (table[i].index);
}


/*!
 * @brief ¥ª¥Ö¥¸¥§¥¯¥È¤ò´ÕÄêºÑ¤Ë¤¹¤ë /
 * Known is true when the "attributes" of an object are "known".
 * @param o_ptr ´ÕÄêºÑ¤Ë¤¹¤ë¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @return ¤Ê¤·
 * These include tohit, todam, toac, cost, and pval (charges).\n
 *\n
 * Note that "knowing" an object gives you everything that an "awareness"\n
 * gives you, and much more.  In fact, the player is always "aware" of any\n
 * item of which he has full "knowledge".\n
 *\n
 * But having full knowledge of, say, one "wand of wonder", does not, by\n
 * itself, give you knowledge, or even awareness, of other "wands of wonder".\n
 * It happens that most "identify" routines (including "buying from a shop")\n
 * will make the player "aware" of the object as well as fully "know" it.\n
 *\n
 * This routine also removes any inscriptions generated by "feelings".\n
 */
void object_known(object_type *o_ptr)
{
        /* Remove "default inscriptions" */
        o_ptr->feeling = FEEL_NONE;

        /* Clear the "Felt" info */
        o_ptr->ident &= ~(IDENT_SENSE);

        /* Clear the "Empty" info */
        o_ptr->ident &= ~(IDENT_EMPTY);

        /* Now we know about the item */
        o_ptr->ident |= (IDENT_KNOWN);
}

/*!
 * @brief ¥ª¥Ö¥¸¥§¥¯¥È¤ò¡ö´ÕÄê¡öºÑ¤Ë¤¹¤ë /
 * The player is now aware of the effects of the given object.
 * @param o_ptr ¡ö´ÕÄê¡öºÑ¤Ë¤¹¤ë¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @return ¤Ê¤·
 */
void object_aware(object_type *o_ptr)
{
        bool mihanmei = !object_is_aware(o_ptr);

        /* Fully aware of the effects */
        k_info[o_ptr->k_idx].aware = TRUE;

        if(mihanmei && !(k_info[o_ptr->k_idx].gen_flags & TRG_INSTA_ART) && record_ident &&
           !p_ptr->is_dead && ((o_ptr->tval >= TV_AMULET && o_ptr->tval <= TV_POTION) || (o_ptr->tval == TV_FOOD)))
        {
                object_type forge;
                object_type *q_ptr;
                char o_name[MAX_NLEN];

                q_ptr = &forge;
                object_copy(q_ptr, o_ptr);

                q_ptr->number = 1;
                object_desc(o_name, q_ptr, OD_NAME_ONLY);
                
                do_cmd_write_nikki(NIKKI_HANMEI, 0, o_name);
        }
}


/*!
 * @brief ¥ª¥Ö¥¸¥§¥¯¥È¤ò»î¹ÔºÑ¤Ë¤¹¤ë /
 * Something has been "sampled"
 * @param o_ptr »î¹ÔºÑ¤Ë¤¹¤ë¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @return ¤Ê¤·
 */
void object_tried(object_type *o_ptr)
{
        /* Mark it as tried (even if "aware") */
        k_info[o_ptr->k_idx].tried = TRUE;
}


/*!
 * @brief ̤´ÕÄê¤Ê¥Ù¡¼¥¹¥¢¥¤¥Æ¥à¤Î´ðËܲÁ³Ê¤òÊÖ¤¹ /
 * Return the "value" of an "unknown" item Make a guess at the value of non-aware items
 * @param o_ptr ̤´ÕÄê²Á³Ê¤ò³Îǧ¤·¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @return ¥ª¥Ö¥¸¥§¥¯¥È¤Î̤´ÕÄê²Á³Ê
 */
static s32b object_value_base(object_type *o_ptr)
{
        /* Aware item -- use template cost */
        if (object_is_aware(o_ptr)) return (k_info[o_ptr->k_idx].cost);

        /* Analyze the type */
        switch (o_ptr->tval)
        {

                /* Un-aware Food */
                case TV_FOOD: return (5L);

                /* Un-aware Potions */
                case TV_POTION: return (20L);

                /* Un-aware Scrolls */
                case TV_SCROLL: return (20L);

                /* Un-aware Staffs */
                case TV_STAFF: return (70L);

                /* Un-aware Wands */
                case TV_WAND: return (50L);

                /* Un-aware Rods */
                case TV_ROD: return (90L);

                /* Un-aware Rings */
                case TV_RING: return (45L);

                /* Un-aware Amulets */
                case TV_AMULET: return (45L);

                /* Figurines, relative to monster level */
                case TV_FIGURINE:
                {
                        int level = r_info[o_ptr->pval].level;
                        if (level < 20) return level*50L;
                        else if (level < 30) return 1000+(level-20)*150L;
                        else if (level < 40) return 2500+(level-30)*350L;
                        else if (level < 50) return 6000+(level-40)*800L;
                        else return 14000+(level-50)*2000L;
                }

                case TV_CAPTURE:
                        if (!o_ptr->pval) return 1000L;
                        else return ((r_info[o_ptr->pval].level) * 50L + 1000);
        }

        /* Paranoia -- Oops */
        return (0L);
}


/*!
 * @brief ¥ª¥Ö¥¸¥§¥¯¥È¤Î¥Õ¥é¥°Îफ¤é²Á³Ê¤ò»»½Ð¤¹¤ë /
 * Return the value of the flags the object has...
 * @param o_ptr ¥Õ¥é¥°²Á³Ê¤ò³Îǧ¤·¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @param plusses ¥Õ¥é¥°¤ËÍ¿¤¨¤ë²Á³Ê¤Î´ðËܽŤß
 * @return ¥ª¥Ö¥¸¥§¥¯¥È¤Î¥Õ¥é¥°²Á³Ê
 */
s32b flag_cost(object_type *o_ptr, int plusses)
{
        s32b total = 0;
        u32b flgs[TR_FLAG_SIZE];
        s32b tmp_cost;
        int count;
        int i;
        object_kind *k_ptr = &k_info[o_ptr->k_idx];

        object_flags(o_ptr, flgs);

        /*
         * Exclude fixed flags of the base item.
         * pval bonuses of base item will be treated later.
         */
        for (i = 0; i < TR_FLAG_SIZE; i++)
                flgs[i] &= ~(k_ptr->flags[i]);

        /* Exclude fixed flags of the fixed artifact. */
        if (object_is_fixed_artifact(o_ptr))
        {
                artifact_type *a_ptr = &a_info[o_ptr->name1];

                for (i = 0; i < TR_FLAG_SIZE; i++)
                        flgs[i] &= ~(a_ptr->flags[i]);
        }

        /* Exclude fixed flags of the ego-item. */
        else if (object_is_ego(o_ptr))
        {
                ego_item_type *e_ptr = &e_info[o_ptr->name2];

                for (i = 0; i < TR_FLAG_SIZE; i++)
                        flgs[i] &= ~(e_ptr->flags[i]);
        }


        /*
         * Calucurate values of remaining flags
         */
        if (have_flag(flgs, TR_STR)) total += (1500 * plusses);
        if (have_flag(flgs, TR_INT)) total += (1500 * plusses);
        if (have_flag(flgs, TR_WIS)) total += (1500 * plusses);
        if (have_flag(flgs, TR_DEX)) total += (1500 * plusses);
        if (have_flag(flgs, TR_CON)) total += (1500 * plusses);
        if (have_flag(flgs, TR_CHR)) total += (750 * plusses);
        if (have_flag(flgs, TR_MAGIC_MASTERY)) total += (600 * plusses);
        if (have_flag(flgs, TR_STEALTH)) total += (250 * plusses);
        if (have_flag(flgs, TR_SEARCH)) total += (100 * plusses);
        if (have_flag(flgs, TR_INFRA)) total += (150 * plusses);
        if (have_flag(flgs, TR_TUNNEL)) total += (175 * plusses);
        if ((have_flag(flgs, TR_SPEED)) && (plusses > 0))
                total += (10000 + (2500 * plusses));
        if ((have_flag(flgs, TR_BLOWS)) && (plusses > 0))
                total += (10000 + (2500 * plusses));

        tmp_cost = 0;
        count = 0;
        if (have_flag(flgs, TR_CHAOTIC)) {total += 5000;count++;}
        if (have_flag(flgs, TR_VAMPIRIC)) {total += 6500;count++;}
        if (have_flag(flgs, TR_FORCE_WEAPON)) {tmp_cost += 2500;count++;}
        if (have_flag(flgs, TR_KILL_ANIMAL)) {tmp_cost += 2800;count++;}
        else if (have_flag(flgs, TR_SLAY_ANIMAL)) {tmp_cost += 1800;count++;}
        if (have_flag(flgs, TR_KILL_EVIL)) {tmp_cost += 3300;count++;}
        else if (have_flag(flgs, TR_SLAY_EVIL)) {tmp_cost += 2300;count++;}
        if (have_flag(flgs, TR_KILL_HUMAN)) {tmp_cost += 2800;count++;}
        else if (have_flag(flgs, TR_SLAY_HUMAN)) {tmp_cost += 1800;count++;}
        if (have_flag(flgs, TR_KILL_UNDEAD)) {tmp_cost += 2800;count++;}
        else if (have_flag(flgs, TR_SLAY_UNDEAD)) {tmp_cost += 1800;count++;}
        if (have_flag(flgs, TR_KILL_DEMON)) {tmp_cost += 2800;count++;}
        else if (have_flag(flgs, TR_SLAY_DEMON)) {tmp_cost += 1800;count++;}
        if (have_flag(flgs, TR_KILL_ORC)) {tmp_cost += 2500;count++;}
        else if (have_flag(flgs, TR_SLAY_ORC)) {tmp_cost += 1500;count++;}
        if (have_flag(flgs, TR_KILL_TROLL)) {tmp_cost += 2800;count++;}
        else if (have_flag(flgs, TR_SLAY_TROLL)) {tmp_cost += 1800;count++;}
        if (have_flag(flgs, TR_KILL_GIANT)) {tmp_cost += 2800;count++;}
        else if (have_flag(flgs, TR_SLAY_GIANT)) {tmp_cost += 1800;count++;}
        if (have_flag(flgs, TR_KILL_DRAGON)) {tmp_cost += 2800;count++;}
        else if (have_flag(flgs, TR_SLAY_DRAGON)) {tmp_cost += 1800;count++;}

        if (have_flag(flgs, TR_VORPAL)) {tmp_cost += 2500;count++;}
        if (have_flag(flgs, TR_IMPACT)) {tmp_cost += 2500;count++;}
        if (have_flag(flgs, TR_BRAND_POIS)) {tmp_cost += 3800;count++;}
        if (have_flag(flgs, TR_BRAND_ACID)) {tmp_cost += 3800;count++;}
        if (have_flag(flgs, TR_BRAND_ELEC)) {tmp_cost += 3800;count++;}
        if (have_flag(flgs, TR_BRAND_FIRE)) {tmp_cost += 2500;count++;}
        if (have_flag(flgs, TR_BRAND_COLD)) {tmp_cost += 2500;count++;}
        total += (tmp_cost * count);

        if (have_flag(flgs, TR_SUST_STR)) total += 850;
        if (have_flag(flgs, TR_SUST_INT)) total += 850;
        if (have_flag(flgs, TR_SUST_WIS)) total += 850;
        if (have_flag(flgs, TR_SUST_DEX)) total += 850;
        if (have_flag(flgs, TR_SUST_CON)) total += 850;
        if (have_flag(flgs, TR_SUST_CHR)) total += 250;
        if (have_flag(flgs, TR_RIDING)) total += 0;
        if (have_flag(flgs, TR_EASY_SPELL)) total += 1500;
        if (have_flag(flgs, TR_THROW)) total += 5000;
        if (have_flag(flgs, TR_FREE_ACT)) total += 4500;
        if (have_flag(flgs, TR_HOLD_EXP)) total += 8500;

        tmp_cost = 0;
        count = 0;
        if (have_flag(flgs, TR_IM_ACID)) {tmp_cost += 15000;count += 2;}
        if (have_flag(flgs, TR_IM_ELEC)) {tmp_cost += 15000;count += 2;}
        if (have_flag(flgs, TR_IM_FIRE)) {tmp_cost += 15000;count += 2;}
        if (have_flag(flgs, TR_IM_COLD)) {tmp_cost += 15000;count += 2;}
        if (have_flag(flgs, TR_REFLECT)) {tmp_cost += 5000;count += 2;}
        if (have_flag(flgs, TR_RES_ACID)) {tmp_cost += 500;count++;}
        if (have_flag(flgs, TR_RES_ELEC)) {tmp_cost += 500;count++;}
        if (have_flag(flgs, TR_RES_FIRE)) {tmp_cost += 500;count++;}
        if (have_flag(flgs, TR_RES_COLD)) {tmp_cost += 500;count++;}
        if (have_flag(flgs, TR_RES_POIS)) {tmp_cost += 1000;count += 2;}
        if (have_flag(flgs, TR_RES_FEAR)) {tmp_cost += 1000;count += 2;}
        if (have_flag(flgs, TR_RES_LITE)) {tmp_cost += 800;count += 2;}
        if (have_flag(flgs, TR_RES_DARK)) {tmp_cost += 800;count += 2;}
        if (have_flag(flgs, TR_RES_BLIND)) {tmp_cost += 900;count += 2;}
        if (have_flag(flgs, TR_RES_CONF)) {tmp_cost += 900;count += 2;}
        if (have_flag(flgs, TR_RES_SOUND)) {tmp_cost += 900;count += 2;}
        if (have_flag(flgs, TR_RES_SHARDS)) {tmp_cost += 900;count += 2;}
        if (have_flag(flgs, TR_RES_NETHER)) {tmp_cost += 900;count += 2;}
        if (have_flag(flgs, TR_RES_NEXUS)) {tmp_cost += 900;count += 2;}
        if (have_flag(flgs, TR_RES_CHAOS)) {tmp_cost += 1000;count += 2;}
        if (have_flag(flgs, TR_RES_DISEN)) {tmp_cost += 2000;count += 2;}
        total += (tmp_cost * count);

        if (have_flag(flgs, TR_SH_FIRE)) total += 5000;
        if (have_flag(flgs, TR_SH_ELEC)) total += 5000;
        if (have_flag(flgs, TR_SH_COLD)) total += 5000;
        if (have_flag(flgs, TR_NO_TELE)) total -= 10000;
        if (have_flag(flgs, TR_NO_MAGIC)) total += 2500;
        if (have_flag(flgs, TR_TY_CURSE)) total -= 15000;
        if (have_flag(flgs, TR_HIDE_TYPE)) total += 0;
        if (have_flag(flgs, TR_SHOW_MODS)) total += 0;
        if (have_flag(flgs, TR_LEVITATION)) total += 1250;
        if (have_flag(flgs, TR_LITE_1)) total += 1500;
        if (have_flag(flgs, TR_LITE_2)) total += 2500;
        if (have_flag(flgs, TR_LITE_3)) total += 4000;
        if (have_flag(flgs, TR_LITE_M1)) total -= 1500;
        if (have_flag(flgs, TR_LITE_M2)) total -= 2500;
        if (have_flag(flgs, TR_LITE_M3)) total -= 4000;
        if (have_flag(flgs, TR_SEE_INVIS)) total += 2000;
        if (have_flag(flgs, TR_TELEPATHY)) total += 20000;
        if (have_flag(flgs, TR_ESP_ANIMAL)) total += 1000;
        if (have_flag(flgs, TR_ESP_UNDEAD)) total += 1000;
        if (have_flag(flgs, TR_ESP_DEMON)) total += 1000;
        if (have_flag(flgs, TR_ESP_ORC)) total += 1000;
        if (have_flag(flgs, TR_ESP_TROLL)) total += 1000;
        if (have_flag(flgs, TR_ESP_GIANT)) total += 1000;
        if (have_flag(flgs, TR_ESP_DRAGON)) total += 1000;
        if (have_flag(flgs, TR_ESP_HUMAN)) total += 1000;
        if (have_flag(flgs, TR_ESP_EVIL)) total += 15000;
        if (have_flag(flgs, TR_ESP_GOOD)) total += 2000;
        if (have_flag(flgs, TR_ESP_NONLIVING)) total += 2000;
        if (have_flag(flgs, TR_ESP_UNIQUE)) total += 10000;
        if (have_flag(flgs, TR_SLOW_DIGEST)) total += 750;
        if (have_flag(flgs, TR_REGEN)) total += 2500;
        if (have_flag(flgs, TR_WARNING)) total += 2000;
        if (have_flag(flgs, TR_DEC_MANA)) total += 10000;
        if (have_flag(flgs, TR_XTRA_MIGHT)) total += 2250;
        if (have_flag(flgs, TR_XTRA_SHOTS)) total += 10000;
        if (have_flag(flgs, TR_IGNORE_ACID)) total += 100;
        if (have_flag(flgs, TR_IGNORE_ELEC)) total += 100;
        if (have_flag(flgs, TR_IGNORE_FIRE)) total += 100;
        if (have_flag(flgs, TR_IGNORE_COLD)) total += 100;
        if (have_flag(flgs, TR_ACTIVATE)) total += 100;
        if (have_flag(flgs, TR_DRAIN_EXP)) total -= 12500;
        if (have_flag(flgs, TR_DRAIN_HP)) total -= 12500;
        if (have_flag(flgs, TR_DRAIN_MANA)) total -= 12500;
        if (have_flag(flgs, TR_CALL_ANIMAL)) total -= 12500;
        if (have_flag(flgs, TR_CALL_DEMON)) total -= 10000;
        if (have_flag(flgs, TR_CALL_DRAGON)) total -= 10000;
        if (have_flag(flgs, TR_CALL_UNDEAD)) total -= 10000;
        if (have_flag(flgs, TR_COWARDICE)) total -= 5000;
        if (have_flag(flgs, TR_LOW_MELEE)) total -= 5000;
        if (have_flag(flgs, TR_LOW_AC)) total -= 5000;
        if (have_flag(flgs, TR_LOW_MAGIC)) total -= 15000;
        if (have_flag(flgs, TR_FAST_DIGEST)) total -= 10000;
        if (have_flag(flgs, TR_SLOW_REGEN)) total -= 10000;
        if (have_flag(flgs, TR_TELEPORT))
        {
                if (object_is_cursed(o_ptr))
                        total -= 7500;
                else
                        total += 250;
        }
        if (have_flag(flgs, TR_AGGRAVATE)) total -= 10000;
        if (have_flag(flgs, TR_BLESSED)) total += 750;
        if (o_ptr->curse_flags & TR_ADD_L_CURSE) total -= 5000;
        if (o_ptr->curse_flags & TR_ADD_H_CURSE) total -= 12500;
        if (o_ptr->curse_flags & TRC_CURSED) total -= 5000;
        if (o_ptr->curse_flags & TRC_HEAVY_CURSE) total -= 12500;
        if (o_ptr->curse_flags & TRC_PERMA_CURSE) total -= 15000;

        /* Also, give some extra for activatable powers... */
        if (o_ptr->art_name && (have_flag(o_ptr->art_flags, TR_ACTIVATE)))
        {
                const activation_type* const act_ptr = find_activation_info(o_ptr);
                if (act_ptr) {
                        total += act_ptr->value;
                }
        }

        return total;
}


/*!
 * @brief ¥ª¥Ö¥¸¥§¥¯¥È¤Î¿¿¤Î²Á³Ê¤ò»»½Ð¤¹¤ë /
 * Return the value of the flags the object has...
 * @param o_ptr ËܲÁ³Ê¤ò³Îǧ¤·¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @return ¥ª¥Ö¥¸¥§¥¯¥È¤ÎËܲÁ³Ê
 * @details
 * Return the "real" price of a "known" item, not including discounts\n
 *\n
 * Wand and staffs get cost for each charge\n
 *\n
 * Armor is worth an extra 100 gold per bonus point to armor class.\n
 *\n
 * Weapons are worth an extra 100 gold per bonus point (AC,TH,TD).\n
 *\n
 * Missiles are only worth 5 gold per bonus point, since they\n
 * usually appear in groups of 20, and we want the player to get\n
 * the same amount of cash for any "equivalent" item.  Note that\n
 * missiles never have any of the "pval" flags, and in fact, they\n
 * only have a few of the available flags, primarily of the "slay"\n
 * and "brand" and "ignore" variety.\n
 *\n
 * Armor with a negative armor bonus is worthless.\n
 * Weapons with negative hit+damage bonuses are worthless.\n
 *\n
 * Every wearable item with a "pval" bonus is worth extra (see below).\n
 */
s32b object_value_real(object_type *o_ptr)
{
        s32b value;

        u32b flgs[TR_FLAG_SIZE];

        object_kind *k_ptr = &k_info[o_ptr->k_idx];


        /* Hack -- "worthless" items */
        if (!k_info[o_ptr->k_idx].cost) return (0L);

        /* Base cost */
        value = k_info[o_ptr->k_idx].cost;

        /* Extract some flags */
        object_flags(o_ptr, flgs);

        /* Artifact */
        if (object_is_fixed_artifact(o_ptr))
        {
                artifact_type *a_ptr = &a_info[o_ptr->name1];

                /* Hack -- "worthless" artifacts */
                if (!a_ptr->cost) return (0L);

                /* Hack -- Use the artifact cost instead */
                value = a_ptr->cost;
                value += flag_cost(o_ptr, o_ptr->pval);

                /* Don't add pval bonuses etc. */
                return (value);
        }

        /* Ego-Item */
        else if (object_is_ego(o_ptr))
        {
                ego_item_type *e_ptr = &e_info[o_ptr->name2];

                /* Hack -- "worthless" ego-items */
                if (!e_ptr->cost) return (0L);

                /* Hack -- Reward the ego-item with a bonus */
                value += e_ptr->cost;
                value += flag_cost(o_ptr, o_ptr->pval);
        }

        else
        {
                int i;
                bool flag = FALSE;

                for (i = 0; i < TR_FLAG_SIZE; i++) 
                        if (o_ptr->art_flags[i]) flag = TRUE;

                if (flag) value += flag_cost(o_ptr, o_ptr->pval);
        }

        /* Analyze pval bonus for normal object */
        switch (o_ptr->tval)
        {
        case TV_SHOT:
        case TV_ARROW:
        case TV_BOLT:
        case TV_BOW:
        case TV_DIGGING:
        case TV_HAFTED:
        case TV_POLEARM:
        case TV_SWORD:
        case TV_BOOTS:
        case TV_GLOVES:
        case TV_HELM:
        case TV_CROWN:
        case TV_SHIELD:
        case TV_CLOAK:
        case TV_SOFT_ARMOR:
        case TV_HARD_ARMOR:
        case TV_DRAG_ARMOR:
        case TV_LITE:
        case TV_AMULET:
        case TV_RING:
                /* No pval */
                if (!o_ptr->pval) break;

                /* Hack -- Negative "pval" is always bad */
                if (o_ptr->pval < 0) return (0L);

                /* Give credit for stat bonuses */
                if (have_flag(flgs, TR_STR)) value += (o_ptr->pval * 200L);
                if (have_flag(flgs, TR_INT)) value += (o_ptr->pval * 200L);
                if (have_flag(flgs, TR_WIS)) value += (o_ptr->pval * 200L);
                if (have_flag(flgs, TR_DEX)) value += (o_ptr->pval * 200L);
                if (have_flag(flgs, TR_CON)) value += (o_ptr->pval * 200L);
                if (have_flag(flgs, TR_CHR)) value += (o_ptr->pval * 200L);

                /* Give credit for stealth and searching */
                if (have_flag(flgs, TR_MAGIC_MASTERY)) value += (o_ptr->pval * 100);
                if (have_flag(flgs, TR_STEALTH)) value += (o_ptr->pval * 100L);
                if (have_flag(flgs, TR_SEARCH)) value += (o_ptr->pval * 100L);

                /* Give credit for infra-vision and tunneling */
                if (have_flag(flgs, TR_INFRA)) value += (o_ptr->pval * 50L);
                if (have_flag(flgs, TR_TUNNEL)) value += (o_ptr->pval * 50L);

                /* Give credit for extra attacks */
                if (have_flag(flgs, TR_BLOWS)) value += (o_ptr->pval * 5000L);

                /* Give credit for speed bonus */
                if (have_flag(flgs, TR_SPEED)) value += (o_ptr->pval * 10000L);

                break;
        }


        /* Analyze the item */
        switch (o_ptr->tval)
        {
                /* Wands/Staffs */
                case TV_WAND:
                {
                        /* Pay extra for charges, depending on standard number of
                         * charges.  Handle new-style wands correctly. -LM-
                         */
                        value += (value * o_ptr->pval / o_ptr->number / (k_ptr->pval * 2));

                        /* Done */
                        break;
                }
                case TV_STAFF:
                {
                        /* Pay extra for charges, depending on standard number of
                         * charges.  -LM-
                         */
                        value += (value * o_ptr->pval / (k_ptr->pval * 2));

                        /* Done */
                        break;
                }

                /* Rings/Amulets */
                case TV_RING:
                case TV_AMULET:
                {
                        /* Hack -- negative bonuses are bad */
                        if (o_ptr->to_h + o_ptr->to_d + o_ptr->to_a < 0) return (0L);

                        /* Give credit for bonuses */
                        value += ((o_ptr->to_h + o_ptr->to_d + o_ptr->to_a) * 200L);

                        /* Done */
                        break;
                }

                /* Armor */
                case TV_BOOTS:
                case TV_GLOVES:
                case TV_CLOAK:
                case TV_CROWN:
                case TV_HELM:
                case TV_SHIELD:
                case TV_SOFT_ARMOR:
                case TV_HARD_ARMOR:
                case TV_DRAG_ARMOR:
                {
                        /* Hack -- negative armor bonus */
                        if (o_ptr->to_a < 0) return (0L);

                        /* Give credit for bonuses */
                        value += (((o_ptr->to_h - k_ptr->to_h) + (o_ptr->to_d - k_ptr->to_d)) * 200L + (o_ptr->to_a) * 100L);

                        /* Done */
                        break;
                }

                /* Bows/Weapons */
                case TV_BOW:
                case TV_DIGGING:
                case TV_HAFTED:
                case TV_SWORD:
                case TV_POLEARM:
                {
                        /* Hack -- negative hit/damage bonuses */
                        if (o_ptr->to_h + o_ptr->to_d < 0) return (0L);

                        /* Factor in the bonuses */
                        value += ((o_ptr->to_h + o_ptr->to_d + o_ptr->to_a) * 100L);

                        /* Hack -- Factor in extra damage dice and sides */
                        value += (o_ptr->dd - k_ptr->dd) * o_ptr->ds * 250L;
                        value += (o_ptr->ds - k_ptr->ds) * o_ptr->dd * 250L;

                        /* Done */
                        break;
                }

                /* Ammo */
                case TV_SHOT:
                case TV_ARROW:
                case TV_BOLT:
                {
                        /* Hack -- negative hit/damage bonuses */
                        if (o_ptr->to_h + o_ptr->to_d < 0) return (0L);

                        /* Factor in the bonuses */
                        value += ((o_ptr->to_h + o_ptr->to_d) * 5L);

                        /* Hack -- Factor in extra damage dice and sides */
                        value += (o_ptr->dd - k_ptr->dd) * o_ptr->ds * 5L;
                        value += (o_ptr->ds - k_ptr->ds) * o_ptr->dd * 5L;

                        /* Done */
                        break;
                }

                /* Figurines, relative to monster level */
                case TV_FIGURINE:
                {
                        int level = r_info[o_ptr->pval].level;
                        if (level < 20) value = level*50L;
                        else if (level < 30) value = 1000+(level-20)*150L;
                        else if (level < 40) value = 2500+(level-30)*350L;
                        else if (level < 50) value = 6000+(level-40)*800L;
                        else value = 14000+(level-50)*2000L;
                        break;
                }

                case TV_CAPTURE:
                {
                        if (!o_ptr->pval) value = 1000L;
                        else value = ((r_info[o_ptr->pval].level) * 50L + 1000);
                        break;
                }

                case TV_CHEST:
                {
                        if (!o_ptr->pval) value = 0L;
                        break;
                }
        }

        /* Worthless object */
        if (value < 0) return 0L;

        /* Return the value */
        return (value);
}


/*!
 * @brief ¥ª¥Ö¥¸¥§¥¯¥È²Á³Ê»»½Ð¤Î¥á¥¤¥ó¥ë¡¼¥Á¥ó /
 * Return the price of an item including plusses (and charges)
 * @param o_ptr ȽÌÀ¤·¤Æ¤¤¤ë¸½²Á³Ê¤ò³Îǧ¤·¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @return ¥ª¥Ö¥¸¥§¥¯¥È¤ÎȽÌÀ¤·¤Æ¤¤¤ë¸½²Á³Ê
 * @details
 * This function returns the "value" of the given item (qty one)\n
 *\n
 * Never notice "unknown" bonuses or properties, including "curses",\n
 * since that would give the player information he did not have.\n
 *\n
 * Note that discounted items stay discounted forever, even if\n
 * the discount is "forgotten" by the player via memory loss.\n
 */
s32b object_value(object_type *o_ptr)
{
        s32b value;


        /* Unknown items -- acquire a base value */
        if (object_is_known(o_ptr))
        {
                /* Broken items -- worthless */
                if (object_is_broken(o_ptr)) return (0L);

                /* Cursed items -- worthless */
                if (object_is_cursed(o_ptr)) return (0L);

                /* Real value (see above) */
                value = object_value_real(o_ptr);
        }

        /* Known items -- acquire the actual value */
        else
        {
                /* Hack -- Felt broken items */
                if ((o_ptr->ident & (IDENT_SENSE)) && object_is_broken(o_ptr)) return (0L);

                /* Hack -- Felt cursed items */
                if ((o_ptr->ident & (IDENT_SENSE)) && object_is_cursed(o_ptr)) return (0L);

                /* Base value (see above) */
                value = object_value_base(o_ptr);
        }


        /* Apply discount (if any) */
        if (o_ptr->discount) value -= (value * o_ptr->discount / 100L);


        /* Return the final value */
        return (value);
}



/*!
 * @brief Ç˲õ²Äǽ¤Ê¥¢¥¤¥Æ¥à¤«¤òÊÖ¤¹ /
 * Determines whether an object can be destroyed, and makes fake inscription.
 * @param o_ptr Ç˲õ²Äǽ¤«¤ò³Îǧ¤·¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @return ¥ª¥Ö¥¸¥§¥¯¥È¤¬Ç˲õ²Äǽ¤Ê¤é¤ÐTRUE¤òÊÖ¤¹
 */
bool can_player_destroy_object(object_type *o_ptr)
{
        /* Artifacts cannot be destroyed */
        if (!object_is_artifact(o_ptr)) return TRUE;

        /* If object is unidentified, makes fake inscription */
        if (!object_is_known(o_ptr))
        {
                byte feel = FEEL_SPECIAL;

                /* Hack -- Handle icky artifacts */
                if (object_is_cursed(o_ptr) || object_is_broken(o_ptr)) feel = FEEL_TERRIBLE;

                /* Hack -- inscribe the artifact */
                o_ptr->feeling = feel;

                /* We have "felt" it (again) */
                o_ptr->ident |= (IDENT_SENSE);

                /* Combine the pack */
                p_ptr->notice |= (PN_COMBINE);

                /* Window stuff */
                p_ptr->window |= (PW_INVEN | PW_EQUIP);

                /* Done */
                return FALSE;
        }

        /* Identified artifact -- Nothing to do */
        return FALSE;
}


/*!
 * @brief ËâË¡ËÀ¤ä¥í¥Ã¥É¤Î¥¹¥í¥Ã¥Èʬ³ä»þ¤Ë»ÈÍѲó¿ô¤òʬÇÛ¤¹¤ë /
 * Distribute charges of rods or wands.
 * @param o_ptr ʬ³ä¸µ¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿ source item
 * @param q_ptr ʬ³äÀ襪¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿ target item, must be of the same type as o_ptr
 * @param amt ʬ³ä¤·¤¿¤¤²ó¿ôÎÌ number of items that are transfered
 * @return ¤Ê¤·
 * @details
 * Hack -- If rods or wands are dropped, the total maximum timeout or\n
 * charges need to be allocated between the two stacks.  If all the items\n
 * are being dropped, it makes for a neater message to leave the original\n
 * stack's pval alone. -LM-\n
 */
void distribute_charges(object_type *o_ptr, object_type *q_ptr, int amt)
{
        if ((o_ptr->tval == TV_WAND) || (o_ptr->tval == TV_ROD))
        {
                q_ptr->pval = o_ptr->pval * amt / o_ptr->number;
                if (amt < o_ptr->number) o_ptr->pval -= q_ptr->pval;

                /* Hack -- Rods also need to have their timeouts distributed.  The
                 * dropped stack will accept all time remaining to charge up to its
                 * maximum.
                 */
                if ((o_ptr->tval == TV_ROD) && (o_ptr->timeout))
                {
                        if (q_ptr->pval > o_ptr->timeout)
                                q_ptr->timeout = o_ptr->timeout;
                        else
                                q_ptr->timeout = q_ptr->pval;

                        if (amt < o_ptr->number) o_ptr->timeout -= q_ptr->timeout;
                }
        }
}

/*!
 * @brief ËâË¡ËÀ¤ä¥í¥Ã¥É¤Î»ÈÍѲó¿ô¤ò¸º¤é¤¹ /
 * @param o_ptr ¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿ source item
 * @param amt ¸º¤é¤·¤¿¤¤²ó¿ôÎÌ number of items that are transfered
 * @return ¤Ê¤·
 * @details
 * Hack -- If rods or wand are destroyed, the total maximum timeout or\n
 * charges of the stack needs to be reduced, unless all the items are\n
 * being destroyed. -LM-\n
 */
void reduce_charges(object_type *o_ptr, int amt)
{
        if (((o_ptr->tval == TV_WAND) || (o_ptr->tval == TV_ROD)) &&
                (amt < o_ptr->number))
        {
                o_ptr->pval -= o_ptr->pval * amt / o_ptr->number;
        }
}

/*
 * Determine if an item can "absorb" a second item
 *
 * See "object_absorb()" for the actual "absorption" code.
 *
 * If permitted, we allow staffs (if they are known to have equal charges
 * and both are either known or confirmed empty) and wands (if both are
 * either known or confirmed empty) and rods (in all cases) to combine.
 * Staffs will unstack (if necessary) when they are used, but wands and
 * rods will only unstack if one is dropped. -LM-
 *
 * If permitted, we allow weapons/armor to stack, if fully "known".
 *
 * Missiles will combine if both stacks have the same "known" status.
 * This is done to make unidentified stacks of missiles useful.
 *
 * Food, potions, scrolls, and "easy know" items always stack.
 *
 * Chests, and activatable items, never stack (for various reasons).
 */

/*
 * A "stack" of items is limited to less than or equal to 99 items (hard-coded).
 */
#define MAX_STACK_SIZE 99


/*!
 * @brief ¥Ö¥¸¥§¥¯¥È¤ò¥¹¥í¥Ã¥È¤Ë½Å¤Í¹ç¤ï¤»²Äǽ¤ÊºÇÂç¿ô¤òÊÖ¤¹¡£
 * Determine if an item can partly absorb a second item. Return maximum number of stack.
 * @param o_ptr ¸¡¾Ú¤·¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿1
 * @param j_ptr ¸¡¾Ú¤·¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿2
 * @return ½Å¤Í¹ç¤ï¤»²Äǽ¤Ê¥¢¥¤¥Æ¥à¿ô
 */
int object_similar_part(object_type *o_ptr, object_type *j_ptr)
{
        int i;

        /* Default maximum number of stack */
        int max_num = MAX_STACK_SIZE;

        /* Require identical object types */
        if (o_ptr->k_idx != j_ptr->k_idx) return 0;


        /* Analyze the items */
        switch (o_ptr->tval)
        {
                /* Chests and Statues*/
                case TV_CHEST:
                case TV_CARD:
                case TV_CAPTURE:
                {
                        /* Never okay */
                        return 0;
                }

                case TV_STATUE:
                {
                        if ((o_ptr->sval != SV_PHOTO) || (j_ptr->sval != SV_PHOTO)) return 0;
                        if (o_ptr->pval != j_ptr->pval) return 0;
                        break;
                }

                /* Figurines and Corpses*/
                case TV_FIGURINE:
                case TV_CORPSE:
                {
                        /* Same monster */
                        if (o_ptr->pval != j_ptr->pval) return 0;

                        /* Assume okay */
                        break;
                }

                /* Food and Potions and Scrolls */
                case TV_FOOD:
                case TV_POTION:
                case TV_SCROLL:
                {
                        /* Assume okay */
                        break;
                }

                /* Staffs */
                case TV_STAFF:
                {
                        /* Require either knowledge or known empty for both staffs. */
                        if ((!(o_ptr->ident & (IDENT_EMPTY)) &&
                                !object_is_known(o_ptr)) ||
                                (!(j_ptr->ident & (IDENT_EMPTY)) &&
                                !object_is_known(j_ptr))) return 0;

                        /* Require identical charges, since staffs are bulky. */
                        if (o_ptr->pval != j_ptr->pval) return 0;

                        /* Assume okay */
                        break;
                }

                /* Wands */
                case TV_WAND:
                {
                        /* Require either knowledge or known empty for both wands. */
                        if ((!(o_ptr->ident & (IDENT_EMPTY)) &&
                                !object_is_known(o_ptr)) ||
                                (!(j_ptr->ident & (IDENT_EMPTY)) &&
                                !object_is_known(j_ptr))) return 0;

                        /* Wand charges combine in O&ZAngband.  */

                        /* Assume okay */
                        break;
                }

                /* Staffs and Wands and Rods */
                case TV_ROD:
                {
                        /* Prevent overflaw of timeout */
                        max_num = MIN(max_num, MAX_SHORT / k_info[o_ptr->k_idx].pval);

                        /* Assume okay */
                        break;
                }

                /* Weapons and Armor */
                case TV_BOW:
                case TV_DIGGING:
                case TV_HAFTED:
                case TV_POLEARM:
                case TV_SWORD:
                case TV_BOOTS:
                case TV_GLOVES:
                case TV_HELM:
                case TV_CROWN:
                case TV_SHIELD:
                case TV_CLOAK:
                case TV_SOFT_ARMOR:
                case TV_HARD_ARMOR:
                case TV_DRAG_ARMOR:

                /* Rings, Amulets, Lites */
                case TV_RING:
                case TV_AMULET:
                case TV_LITE:
                case TV_WHISTLE:
                {
                        /* Require full knowledge of both items */
                        if (!object_is_known(o_ptr) || !object_is_known(j_ptr)) return 0;

                        /* Fall through */
                }

                /* Missiles */
                case TV_BOLT:
                case TV_ARROW:
                case TV_SHOT:
                {
                        /* Require identical knowledge of both items */
                        if (object_is_known(o_ptr) != object_is_known(j_ptr)) return 0;
                        if (o_ptr->feeling != j_ptr->feeling) return 0;

                        /* Require identical "bonuses" */
                        if (o_ptr->to_h != j_ptr->to_h) return 0;
                        if (o_ptr->to_d != j_ptr->to_d) return 0;
                        if (o_ptr->to_a != j_ptr->to_a) return 0;

                        /* Require identical "pval" code */
                        if (o_ptr->pval != j_ptr->pval) return 0;

                        /* Artifacts never stack */
                        if (object_is_artifact(o_ptr) || object_is_artifact(j_ptr)) return 0;

                        /* Require identical "ego-item" names */
                        if (o_ptr->name2 != j_ptr->name2) return 0;

                        /* Require identical added essence  */
                        if (o_ptr->xtra3 != j_ptr->xtra3) return 0;
                        if (o_ptr->xtra4 != j_ptr->xtra4) return 0;

                        /* Hack -- Never stack "powerful" items */
                        if (o_ptr->xtra1 || j_ptr->xtra1) return 0;

                        /* Hack -- Never stack recharging items */
                        if (o_ptr->timeout || j_ptr->timeout) return 0;

                        /* Require identical "values" */
                        if (o_ptr->ac != j_ptr->ac) return 0;
                        if (o_ptr->dd != j_ptr->dd) return 0;
                        if (o_ptr->ds != j_ptr->ds) return 0;

                        /* Probably okay */
                        break;
                }

                /* Various */
                default:
                {
                        /* Require knowledge */
                        if (!object_is_known(o_ptr) || !object_is_known(j_ptr)) return 0;

                        /* Probably okay */
                        break;
                }
        }


        /* Hack -- Identical art_flags! */
        for (i = 0; i < TR_FLAG_SIZE; i++)
                if (o_ptr->art_flags[i] != j_ptr->art_flags[i]) return 0;

        /* Hack -- Require identical "cursed" status */
        if (o_ptr->curse_flags != j_ptr->curse_flags) return 0;

        /* Hack -- Require identical "broken" status */
        if ((o_ptr->ident & (IDENT_BROKEN)) != (j_ptr->ident & (IDENT_BROKEN))) return 0;


        /* Hack -- require semi-matching "inscriptions" */
        if (o_ptr->inscription && j_ptr->inscription &&
            (o_ptr->inscription != j_ptr->inscription))
                return 0;

        /* Hack -- normally require matching "inscriptions" */
        if (!stack_force_notes && (o_ptr->inscription != j_ptr->inscription)) return 0;

        /* Hack -- normally require matching "discounts" */
        if (!stack_force_costs && (o_ptr->discount != j_ptr->discount)) return 0;


        /* They match, so they must be similar */
        return max_num;
}

/*!
 * @brief ¥Ö¥¸¥§¥¯¥È¤ò¥¹¥í¥Ã¥È¤Ë½Å¤Í¤ë¤³¤È¤¬¤Ç¤­¤ë¤«¤É¤¦¤«¤òÊÖ¤¹¡£
 * Determine if an item can absorb a second item.
 * @param o_ptr ¸¡¾Ú¤·¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿1
 * @param j_ptr ¸¡¾Ú¤·¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿2
 * @return ½Å¤Í¹ç¤ï¤»²Äǽ¤Ê¤é¤ÐTRUE¤òÊÖ¤¹¡£
 */
bool object_similar(object_type *o_ptr, object_type *j_ptr)
{
        int total = o_ptr->number + j_ptr->number;
        int max_num;

        /* Are these objects similar? */
        max_num = object_similar_part(o_ptr, j_ptr);

        /* Return if not similar */
        if (!max_num) return FALSE;

        /* Maximal "stacking" limit */
        if (total > max_num) return (0);


        /* They match, so they must be similar */
        return (TRUE);
}


/*!
 * @brief ¥Ö¥¸¥§¥¯¥È¤ò¥¹¥í¥Ã¥È¤Ë½Å¤Í¹ç¤ï¤»¤ë¡£
 * Allow one item to "absorb" another, assuming they are similar
 * @param o_ptr ½Å¤Í¹ç¤ï¤»Àè¤Î¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @param j_ptr ½Å¤Í¹ç¤ï¤»¸µ¤Î¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @return ¤Ê¤·
 */
void object_absorb(object_type *o_ptr, object_type *j_ptr)
{
        int max_num = object_similar_part(o_ptr, j_ptr);
        int total = o_ptr->number + j_ptr->number;
        int diff = (total > max_num) ? total - max_num : 0;

        /* Combine quantity, lose excess items */
        o_ptr->number = (total > max_num) ? max_num : total;

        /* Hack -- blend "known" status */
        if (object_is_known(j_ptr)) object_known(o_ptr);

        /* Hack -- clear "storebought" if only one has it */
        if (((o_ptr->ident & IDENT_STORE) || (j_ptr->ident & IDENT_STORE)) &&
            (!((o_ptr->ident & IDENT_STORE) && (j_ptr->ident & IDENT_STORE))))
        {
                if (j_ptr->ident & IDENT_STORE) j_ptr->ident &= 0xEF;
                if (o_ptr->ident & IDENT_STORE) o_ptr->ident &= 0xEF;
        }

        /* Hack -- blend "mental" status */
        if (j_ptr->ident & (IDENT_MENTAL)) o_ptr->ident |= (IDENT_MENTAL);

        /* Hack -- blend "inscriptions" */
        if (j_ptr->inscription) o_ptr->inscription = j_ptr->inscription;

        /* Hack -- blend "feelings" */
        if (j_ptr->feeling) o_ptr->feeling = j_ptr->feeling;

        /* Hack -- could average discounts XXX XXX XXX */
        /* Hack -- save largest discount XXX XXX XXX */
        if (o_ptr->discount < j_ptr->discount) o_ptr->discount = j_ptr->discount;

        /* Hack -- if rods are stacking, add the pvals (maximum timeouts) and current timeouts together. -LM- */
        if (o_ptr->tval == TV_ROD)
        {
                o_ptr->pval += j_ptr->pval * (j_ptr->number - diff) / j_ptr->number;
                o_ptr->timeout += j_ptr->timeout * (j_ptr->number - diff) / j_ptr->number;
        }

        /* Hack -- if wands are stacking, combine the charges. -LM- */
        if (o_ptr->tval == TV_WAND)
        {
                o_ptr->pval += j_ptr->pval * (j_ptr->number - diff) / j_ptr->number;
        }
}


/*!
 * @brief tval¤Èsval¤ËÂбþ¤¹¤ë¥Ù¡¼¥¹¥¢¥¤¥Æ¥à¤ÎID¤òÊÖ¤¹¡£
 * Find the index of the object_kind with the given tval and sval
 * @param tval ¸¡º÷¤·¤¿¤¤¥Ù¡¼¥¹¥¢¥¤¥Æ¥à¤Îtval
 * @param sval ¸¡º÷¤·¤¿¤¤¥Ù¡¼¥¹¥¢¥¤¥Æ¥à¤Îsval
 * @return ¤Ê¤·
 */
s16b lookup_kind(int tval, int sval)
{
        int k;
        int num = 0;
        int bk = 0;

        /* Look for it */
        for (k = 1; k < max_k_idx; k++)
        {
                object_kind *k_ptr = &k_info[k];

                /* Require correct tval */
                if (k_ptr->tval != tval) continue;

                /* Found a match */
                if (k_ptr->sval == sval) return (k);

                /* Ignore illegal items */
                if (sval != SV_ANY) continue;

                /* Apply the randomizer */
                if (!one_in_(++num)) continue;

                /* Use this value */
                bk = k;
        }

        /* Return this choice */
        if (sval == SV_ANY)
        {
                return bk;
        }

#if 0
        /* Oops */
#ifdef JP
        msg_format("¥¢¥¤¥Æ¥à¤¬¤Ê¤¤ (%d,%d)", tval, sval);
#else
        msg_format("No object (%d,%d)", tval, sval);
#endif
#endif


        /* Oops */
        return (0);
}


/*!
 * @brief ¥ª¥Ö¥¸¥§¥¯¥È¤ò½é´ü²½¤¹¤ë
 * Wipe an object clean.
 * @param o_ptr ½é´ü²½¤·¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @return ¤Ê¤·
 */
void object_wipe(object_type *o_ptr)
{
        /* Wipe the structure */
        (void)WIPE(o_ptr, object_type);
}


/*!
 * @brief ¥ª¥Ö¥¸¥§¥¯¥È¤òÊ£À½¤¹¤ë
 * Wipe an object clean.
 * @param o_ptr Ê£À½¸µ¤Î¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @param j_ptr Ê£À½Àè¤Î¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @return ¤Ê¤·
 */
void object_copy(object_type *o_ptr, object_type *j_ptr)
{
        /* Copy the structure */
        (void)COPY(o_ptr, j_ptr, object_type);
}


/*!
 * @brief ¥ª¥Ö¥¸¥§¥¯¥È¹½Â¤ÂΤ˥١¼¥¹¥¢¥¤¥Æ¥à¤òºîÀ®¤¹¤ë
 * Prepare an object based on an object kind.
 * @param o_ptr ÂåÆþ¤·¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @param k_idx ¿·¤¿¤ËºîÀ®¤·¤¿¤¤¥Ù¡¼¥¹¥¢¥¤¥Æ¥à¾ðÊó¤ÎID
 * @return ¤Ê¤·
 */
void object_prep(object_type *o_ptr, int k_idx)
{
        object_kind *k_ptr = &k_info[k_idx];

        /* Clear the record */
        object_wipe(o_ptr);

        /* Save the kind index */
        o_ptr->k_idx = k_idx;

        /* Efficiency -- tval/sval */
        o_ptr->tval = k_ptr->tval;
        o_ptr->sval = k_ptr->sval;

        /* Default "pval" */
        o_ptr->pval = k_ptr->pval;

        /* Default number */
        o_ptr->number = 1;

        /* Default weight */
        o_ptr->weight = k_ptr->weight;

        /* Default magic */
        o_ptr->to_h = k_ptr->to_h;
        o_ptr->to_d = k_ptr->to_d;
        o_ptr->to_a = k_ptr->to_a;

        /* Default power */
        o_ptr->ac = k_ptr->ac;
        o_ptr->dd = k_ptr->dd;
        o_ptr->ds = k_ptr->ds;

        /* Default activation */
        if (k_ptr->act_idx > 0) o_ptr->xtra2 = k_ptr->act_idx;

        /* Hack -- worthless items are always "broken" */
        if (k_info[o_ptr->k_idx].cost <= 0) o_ptr->ident |= (IDENT_BROKEN);

        /* Hack -- cursed items are always "cursed" */
        if (k_ptr->gen_flags & (TRG_CURSED)) o_ptr->curse_flags |= (TRC_CURSED);
        if (k_ptr->gen_flags & (TRG_HEAVY_CURSE)) o_ptr->curse_flags |= (TRC_HEAVY_CURSE);
        if (k_ptr->gen_flags & (TRG_PERMA_CURSE)) o_ptr->curse_flags |= (TRC_PERMA_CURSE);
        if (k_ptr->gen_flags & (TRG_RANDOM_CURSE0)) o_ptr->curse_flags |= get_curse(0, o_ptr);
        if (k_ptr->gen_flags & (TRG_RANDOM_CURSE1)) o_ptr->curse_flags |= get_curse(1, o_ptr);
        if (k_ptr->gen_flags & (TRG_RANDOM_CURSE2)) o_ptr->curse_flags |= get_curse(2, o_ptr);
}


/*!
 * @brief ¾å¼Á°Ê¾å¤Î¥ª¥Ö¥¸¥§¥¯¥È¤ËÍ¿¤¨¤ë¤¿¤á¤Î³Æ¼ï¥Ü¡¼¥Ê¥¹¤òÀµµ¬Íð¿ô¤â²Ã¤¨¤Æ»»½Ð¤¹¤ë¡£
 * Help determine an "enchantment bonus" for an object.
 * @param max ¥Ü¡¼¥Ê¥¹ÃͤθÂÅÙ
 * @param level ¥Ü¡¼¥Ê¥¹Ãͤ˲ÃÌ£¤¹¤ë´ð½àÀ¸À®³¬
 * @return »»½Ð¤µ¤ì¤¿¥Ü¡¼¥Ê¥¹ÃÍ
 * @details
 * To avoid floating point but still provide a smooth distribution of bonuses,\n
 * we simply round the results of division in such a way as to "average" the\n
 * correct floating point value.\n
 *\n
 * This function has been changed.  It uses "randnor()" to choose values from\n
 * a normal distribution, whose mean moves from zero towards the max as the\n
 * level increases, and whose standard deviation is equal to 1/4 of the max,\n
 * and whose values are forced to lie between zero and the max, inclusive.\n
 *\n
 * Since the "level" rarely passes 100 before Morgoth is dead, it is very\n
 * rare to get the "full" enchantment on an object, even a deep levels.\n
 *\n
 * It is always possible (albeit unlikely) to get the "full" enchantment.\n
 *\n
 * A sample distribution of values from "m_bonus(10, N)" is shown below:\n
 *\n
 *   N       0     1     2     3     4     5     6     7     8     9    10\n
 * ---    ----  ----  ----  ----  ----  ----  ----  ----  ----  ----  ----\n
 *   0   66.37 13.01  9.73  5.47  2.89  1.31  0.72  0.26  0.12  0.09  0.03\n
 *   8   46.85 24.66 12.13  8.13  4.20  2.30  1.05  0.36  0.19  0.08  0.05\n
 *  16   30.12 27.62 18.52 10.52  6.34  3.52  1.95  0.90  0.31  0.15  0.05\n
 *  24   22.44 15.62 30.14 12.92  8.55  5.30  2.39  1.63  0.62  0.28  0.11\n
 *  32   16.23 11.43 23.01 22.31 11.19  7.18  4.46  2.13  1.20  0.45  0.41\n
 *  40   10.76  8.91 12.80 29.51 16.00  9.69  5.90  3.43  1.47  0.88  0.65\n
 *  48    7.28  6.81 10.51 18.27 27.57 11.76  7.85  4.99  2.80  1.22  0.94\n
 *  56    4.41  4.73  8.52 11.96 24.94 19.78 11.06  7.18  3.68  1.96  1.78\n
 *  64    2.81  3.07  5.65  9.17 13.01 31.57 13.70  9.30  6.04  3.04  2.64\n
 *  72    1.87  1.99  3.68  7.15 10.56 20.24 25.78 12.17  7.52  4.42  4.62\n
 *  80    1.02  1.23  2.78  4.75  8.37 12.04 27.61 18.07 10.28  6.52  7.33\n
 *  88    0.70  0.57  1.56  3.12  6.34 10.06 15.76 30.46 12.58  8.47 10.38\n
 *  96    0.27  0.60  1.25  2.28  4.30  7.60 10.77 22.52 22.51 11.37 16.53\n
 * 104    0.22  0.42  0.77  1.36  2.62  5.33  8.93 13.05 29.54 15.23 22.53\n
 * 112    0.15  0.20  0.56  0.87  2.00  3.83  6.86 10.06 17.89 27.31 30.27\n
 * 120    0.03  0.11  0.31  0.46  1.31  2.48  4.60  7.78 11.67 25.53 45.72\n
 * 128    0.02  0.01  0.13  0.33  0.83  1.41  3.24  6.17  9.57 14.22 64.07\n
 */
s16b m_bonus(int max, int level)
{
        int bonus, stand, extra, value;


        /* Paranoia -- enforce maximal "level" */
        if (level > MAX_DEPTH - 1) level = MAX_DEPTH - 1;


        /* The "bonus" moves towards the max */
        bonus = ((max * level) / MAX_DEPTH);

        /* Hack -- determine fraction of error */
        extra = ((max * level) % MAX_DEPTH);

        /* Hack -- simulate floating point computations */
        if (randint0(MAX_DEPTH) < extra) bonus++;


        /* The "stand" is equal to one quarter of the max */
        stand = (max / 4);

        /* Hack -- determine fraction of error */
        extra = (max % 4);

        /* Hack -- simulate floating point computations */
        if (randint0(4) < extra) stand++;


        /* Choose an "interesting" value */
        value = randnor(bonus, stand);

        /* Enforce the minimum value */
        if (value < 0) return (0);

        /* Enforce the maximum value */
        if (value > max) return (max);

        /* Result */
        return (value);
}


/*!
 * @brief ¥Ç¥Ð¥Ã¥°»þ¤Ë¥¢¥¤¥Æ¥àÀ¸À®¾ðÊó¤ò¥á¥Ã¥»¡¼¥¸¤Ë½ÐÎϤ¹¤ë / Cheat -- describe a created object for the user
 * @param o_ptr ¥Ç¥Ð¥Ã¥°½ÐÎϤ¹¤ë¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @return ¤Ê¤·
 */
static void object_mention(object_type *o_ptr)
{
        char o_name[MAX_NLEN];

        /* Describe */
        object_desc(o_name, o_ptr, (OD_NAME_ONLY | OD_STORE));

        /* Artifact */
        if (object_is_fixed_artifact(o_ptr))
        {
                /* Silly message */
#ifdef JP
                msg_format("ÅÁÀâ¤Î¥¢¥¤¥Æ¥à (%s)", o_name);
#else
                msg_format("Artifact (%s)", o_name);
#endif

        }

        /* Random Artifact */
        else if (o_ptr->art_name)
        {
#ifdef JP
                msg_print("¥é¥ó¥À¥à¡¦¥¢¡¼¥Æ¥£¥Õ¥¡¥¯¥È");
#else
                msg_print("Random artifact");
#endif

        }

        /* Ego-item */
        else if (object_is_ego(o_ptr))
        {
                /* Silly message */
#ifdef JP
                msg_format("̾¤Î¤¢¤ë¥¢¥¤¥Æ¥à (%s)", o_name);
#else
                msg_format("Ego-item (%s)", o_name);
#endif

        }

        /* Normal item */
        else
        {
                /* Silly message */
#ifdef JP
                msg_format("¥¢¥¤¥Æ¥à (%s)", o_name);
#else
                msg_format("Object (%s)", o_name);
#endif

        }
}

/*!
 * @brief INSTA_ART·¿¤Î¸ÇÄꥢ¡¼¥Æ¥£¥Õ¥¡¥¯¥È¤ÎÀ¸À®¤ò³ÎΨ¤Ë±þ¤¸¤Æ»î¹Ô¤¹¤ë¡£
 * Mega-Hack -- Attempt to create one of the "Special Objects"
 * @param o_ptr À¸À®¤Ë³ä¤êÅö¤Æ¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @return À¸À®¤ËÀ®¸ù¤·¤¿¤éTRUE¤òÊÖ¤¹¡£
 * @details
 * We are only called from "make_object()", and we assume that\n
 * "apply_magic()" is called immediately after we return.\n
 *\n
 * Note -- see "make_artifact()" and "apply_magic()"\n
 */
static bool make_artifact_special(object_type *o_ptr)
{
        int i;
        int k_idx = 0;


        /* No artifacts in the town */
        if (!dun_level) return (FALSE);

        /* Themed object */
        if (get_obj_num_hook) return (FALSE);

        /* Check the artifact list (just the "specials") */
        for (i = 0; i < max_a_idx; i++)
        {
                artifact_type *a_ptr = &a_info[i];

                /* Skip "empty" artifacts */
                if (!a_ptr->name) continue;

                /* Cannot make an artifact twice */
                if (a_ptr->cur_num) continue;

                if (a_ptr->gen_flags & TRG_QUESTITEM) continue;
                if (!(a_ptr->gen_flags & TRG_INSTA_ART)) continue;

                /* XXX XXX Enforce minimum "depth" (loosely) */
                if (a_ptr->level > dun_level)
                {
                        /* Acquire the "out-of-depth factor" */
                        int d = (a_ptr->level - dun_level) * 2;

                        /* Roll for out-of-depth creation */
                        if (!one_in_(d)) continue;
                }

                /* Artifact "rarity roll" */
                if (!one_in_(a_ptr->rarity)) continue;

                /* Find the base object */
                k_idx = lookup_kind(a_ptr->tval, a_ptr->sval);

                /* XXX XXX Enforce minimum "object" level (loosely) */
                if (k_info[k_idx].level > object_level)
                {
                        /* Acquire the "out-of-depth factor" */
                        int d = (k_info[k_idx].level - object_level) * 5;

                        /* Roll for out-of-depth creation */
                        if (!one_in_(d)) continue;
                }

                /* Assign the template */
                object_prep(o_ptr, k_idx);

                /* Mega-Hack -- mark the item as an artifact */
                o_ptr->name1 = i;

                /* Hack: Some artifacts get random extra powers */
                random_artifact_resistance(o_ptr, a_ptr);

                /* Success */
                return (TRUE);
        }

        /* Failure */
        return (FALSE);
}


/*!
 * @brief ÈóINSTA_ART·¿¤Î¸ÇÄꥢ¡¼¥Æ¥£¥Õ¥¡¥¯¥È¤ÎÀ¸À®¤ò³ÎΨ¤Ë±þ¤¸¤Æ»î¹Ô¤¹¤ë¡£
 * Mega-Hack -- Attempt to create one of the "Special Objects"
 * @param o_ptr À¸À®¤Ë³ä¤êÅö¤Æ¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @return À¸À®¤ËÀ®¸ù¤·¤¿¤éTRUE¤òÊÖ¤¹¡£
 * @details
 * Attempt to change an object into an artifact\n
 * This routine should only be called by "apply_magic()"\n
 * Note -- see "make_artifact_special()" and "apply_magic()"\n
 */
static bool make_artifact(object_type *o_ptr)
{
        int i;


        /* No artifacts in the town */
        if (!dun_level) return (FALSE);

        /* Paranoia -- no "plural" artifacts */
        if (o_ptr->number != 1) return (FALSE);

        /* Check the artifact list (skip the "specials") */
        for (i = 0; i < max_a_idx; i++)
        {
                artifact_type *a_ptr = &a_info[i];

                /* Skip "empty" items */
                if (!a_ptr->name) continue;

                /* Cannot make an artifact twice */
                if (a_ptr->cur_num) continue;

                if (a_ptr->gen_flags & TRG_QUESTITEM) continue;

                if (a_ptr->gen_flags & TRG_INSTA_ART) continue;

                /* Must have the correct fields */
                if (a_ptr->tval != o_ptr->tval) continue;
                if (a_ptr->sval != o_ptr->sval) continue;

                /* XXX XXX Enforce minimum "depth" (loosely) */
                if (a_ptr->level > dun_level)
                {
                        /* Acquire the "out-of-depth factor" */
                        int d = (a_ptr->level - dun_level) * 2;

                        /* Roll for out-of-depth creation */
                        if (!one_in_(d)) continue;
                }

                /* We must make the "rarity roll" */
                if (!one_in_(a_ptr->rarity)) continue;

                /* Hack -- mark the item as an artifact */
                o_ptr->name1 = i;

                /* Hack: Some artifacts get random extra powers */
                random_artifact_resistance(o_ptr, a_ptr);

                /* Success */
                return (TRUE);
        }

        /* Failure */
        return (FALSE);
}


/*!
 * @brief ¥¢¥¤¥Æ¥à¤Î¥¨¥´¤ò¥ì¥¢Å٤νŤߤ˹ç¤ï¤»¤Æ¥é¥ó¥À¥à¤ËÁªÂò¤¹¤ë
 * Choose random ego type
 * @param slot ¼èÆÀ¤·¤¿¤¤¥¨¥´¤ÎÁõÈ÷Éô°Ì
 * @param good TRUE¤Ê¤é¤ÐÄ̾ï¤Î¥¨¥´¡¢FALSE¤Ê¤é¤Ð¼ö¤¤¤Î¥¨¥´¤¬ÁªÂòÂоݤȤʤ롣
 * @return ÁªÂò¤µ¤ì¤¿¥¨¥´¾ðÊó¤ÎID¡¢Ëü°ìÁªÂò¤Ç¤­¤Ê¤«¤Ã¤¿¾ì¹ç¤Ïmax_e_idx¤¬Ê֤롣
 */
static byte get_random_ego(byte slot, bool good)
{
        int i, value;
        ego_item_type *e_ptr;

        long total = 0L;
        
        for (i = 1; i < max_e_idx; i++)
        {
                e_ptr = &e_info[i];
                
                if (e_ptr->slot == slot
                    && ((good && e_ptr->rating) || (!good && !e_ptr->rating)) )
                {
                        if (e_ptr->rarity)
                                total += (255 / e_ptr->rarity);
                }
        }

        value = randint1(total);

        for (i = 1; i < max_e_idx; i++)
        {
                e_ptr = &e_info[i];
                
                if (e_ptr->slot == slot
                    && ((good && e_ptr->rating) || (!good && !e_ptr->rating)) )
                {
                        if (e_ptr->rarity)
                                value -= (255 / e_ptr->rarity);
                        if (value <= 0L) break;
                }
        }
        return (byte)i;
}


/*!
 * @brief Éð´ï·Ï¥ª¥Ö¥¸¥§¥¯¥È¤ËÀ¸À®¥é¥ó¥¯¤´¤È¤Î¶¯²½¤òÍ¿¤¨¤ë¥µ¥Ö¥ë¡¼¥Á¥ó
 * Apply magic to an item known to be a "weapon"
 * @param o_ptr ¶¯²½¤òÍ¿¤¨¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @param level À¸À®´ð½à³¬
 * @param power À¸À®¥é¥ó¥¯
 * @return ¤Ê¤·
 * @details
 * Hack -- note special base damage dice boosting\n
 * Hack -- note special processing for weapon/digger\n
 */
static void a_m_aux_1(object_type *o_ptr, int level, int power)
{
        int tohit1 = randint1(5) + m_bonus(5, level);
        int todam1 = randint1(5) + m_bonus(5, level);

        int tohit2 = m_bonus(10, level);
        int todam2 = m_bonus(10, level);

        if ((o_ptr->tval == TV_BOLT) || (o_ptr->tval == TV_ARROW) || (o_ptr->tval == TV_SHOT))
        {
                tohit2 = (tohit2+1)/2;
                todam2 = (todam2+1)/2;
        }

        /* Good */
        if (power > 0)
        {
                /* Enchant */
                o_ptr->to_h += tohit1;
                o_ptr->to_d += todam1;

                /* Very good */
                if (power > 1)
                {
                        /* Enchant again */
                        o_ptr->to_h += tohit2;
                        o_ptr->to_d += todam2;
                }
        }

        /* Cursed */
        else if (power < 0)
        {
                /* Penalize */
                o_ptr->to_h -= tohit1;
                o_ptr->to_d -= todam1;

                /* Very cursed */
                if (power < -1)
                {
                        /* Penalize again */
                        o_ptr->to_h -= tohit2;
                        o_ptr->to_d -= todam2;
                }

                /* Cursed (if "bad") */
                if (o_ptr->to_h + o_ptr->to_d < 0) o_ptr->curse_flags |= TRC_CURSED;
        }

        if ((o_ptr->tval == TV_SWORD) && (o_ptr->sval == SV_DIAMOND_EDGE)) return;

        /* Analyze type */
        switch (o_ptr->tval)
        {
                case TV_DIGGING:
                {
                        /* Very good */
                        if (power > 1)
                        {
                                if (one_in_(30) || (power > 2)) /* power > 2 is debug only */
                                        create_artifact(o_ptr, FALSE);
                                else
                                        /* Special Ego-item */
                                        o_ptr->name2 = EGO_DIGGING;
                        }

                        /* Very bad */
                        else if (power < -1)
                        {
                                /* Hack -- Horrible digging bonus */
                                o_ptr->pval = 0 - (5 + randint1(5));
                        }

                        /* Bad */
                        else if (power < 0)
                        {
                                /* Hack -- Reverse digging bonus */
                                o_ptr->pval = 0 - (o_ptr->pval);
                        }

                        break;
                }


                case TV_HAFTED:
                case TV_POLEARM:
                case TV_SWORD:
                {
                        /* Very Good */
                        if (power > 1)
                        {
                                if (one_in_(40) || (power > 2)) /* power > 2 is debug only */
                                {
                                        create_artifact(o_ptr, FALSE);
                                        break;
                                }
                                while (1)
                                {
                                        /* Roll for an ego-item */
                                        o_ptr->name2 = get_random_ego(INVEN_RARM, TRUE);
                                        if (o_ptr->name2 == EGO_SHARPNESS && o_ptr->tval != TV_SWORD)
                                                continue;
                                        if (o_ptr->name2 == EGO_EARTHQUAKES && o_ptr->tval != TV_HAFTED)
                                                continue;
                                        if (o_ptr->name2 == EGO_WEIRD && o_ptr->tval != TV_SWORD)
                                                continue;
                                        break;
                                }

                                switch (o_ptr->name2)
                                {
                                case EGO_HA:
                                        if (one_in_(4) && (level > 40))
                                                add_flag(o_ptr->art_flags, TR_BLOWS);
                                        break;
                                case EGO_DF:
                                        if (one_in_(3))
                                                add_flag(o_ptr->art_flags, TR_RES_POIS);
                                        if (one_in_(3))
                                                add_flag(o_ptr->art_flags, TR_WARNING);
                                        break;
                                case EGO_KILL_DRAGON:
                                        if (one_in_(3))
                                                add_flag(o_ptr->art_flags, TR_RES_POIS);
                                        break;
                                case EGO_WEST:
                                        if (one_in_(3))
                                                add_flag(o_ptr->art_flags, TR_RES_FEAR);
                                        break;
                                case EGO_SLAYING_WEAPON:
                                        if (one_in_(3)) /* double damage */
                                                o_ptr->dd *= 2;
                                        else
                                        {
                                                do
                                                {
                                                        o_ptr->dd++;
                                                }
                                                while (one_in_(o_ptr->dd));
                                                
                                                do
                                                {
                                                        o_ptr->ds++;
                                                }
                                                while (one_in_(o_ptr->ds));
                                        }
                                        
                                        if (one_in_(5))
                                        {
                                                add_flag(o_ptr->art_flags, TR_BRAND_POIS);
                                        }
                                        if (o_ptr->tval == TV_SWORD && one_in_(3))
                                        {
                                                add_flag(o_ptr->art_flags, TR_VORPAL);
                                        }
                                        break;
                                case EGO_TRUMP:
                                        if (one_in_(5))
                                                add_flag(o_ptr->art_flags, TR_SLAY_DEMON);
                                        if (one_in_(7))
                                                one_ability(o_ptr);
                                        break;
                                case EGO_PATTERN:
                                        if (one_in_(3))
                                                add_flag(o_ptr->art_flags, TR_HOLD_EXP);
                                        if (one_in_(3))
                                                add_flag(o_ptr->art_flags, TR_DEX);
                                        if (one_in_(5))
                                                add_flag(o_ptr->art_flags, TR_RES_FEAR);
                                        break;
                                case EGO_SHARPNESS:
                                        o_ptr->pval = m_bonus(5, level) + 1;
                                        break;
                                case EGO_EARTHQUAKES:
                                        if (one_in_(3) && (level > 60))
                                                add_flag(o_ptr->art_flags, TR_BLOWS);
                                        else
                                                o_ptr->pval = m_bonus(3, level);
                                        break;
                                case EGO_VAMPIRIC:
                                        if (one_in_(5))
                                                add_flag(o_ptr->art_flags, TR_SLAY_HUMAN);
                                        break;
                                case EGO_DEMON:
                                        
                                        if(one_in_(3)) o_ptr->curse_flags |= (TRC_HEAVY_CURSE);
                                        one_in_(3) ? 
                                                add_flag(o_ptr->art_flags, TR_DRAIN_EXP) :
                                                one_in_(2) ?
                                                        add_flag(o_ptr->art_flags, TR_DRAIN_HP) :
                                                        add_flag(o_ptr->art_flags, TR_DRAIN_MANA);
                                                
                                        
                                        if (one_in_(3)) add_flag(o_ptr->art_flags, TR_CHAOTIC);
                                        if (one_in_(4)) add_flag(o_ptr->art_flags, TR_BLOWS);
                                        if (one_in_(5)) add_flag(o_ptr->art_flags, TR_ADD_H_CURSE);
                                        if (one_in_(5)) add_flag(o_ptr->art_flags, TR_CALL_DEMON);
                                        break;
                                }

                                if (!o_ptr->art_name)
                                {
                                        /* Hack -- Super-charge the damage dice */
                                        while (one_in_(10L * o_ptr->dd * o_ptr->ds)) o_ptr->dd++;

                                        /* Hack -- Lower the damage dice */
                                        if (o_ptr->dd > 9) o_ptr->dd = 9;
                                }
                        }

                        /* Very cursed */
                        else if (power < -1)
                        {
                                /* Roll for ego-item */
                                if (randint0(MAX_DEPTH) < level)
                                {
                                        while(1)
                                        {
                                                o_ptr->name2 = get_random_ego(INVEN_RARM, FALSE);
                                                if (o_ptr->name2 == EGO_WEIRD && o_ptr->tval != TV_SWORD)
                                                {
                                                        continue;
                                                }
                                                break;
                                        }
                                        switch (o_ptr->name2)
                                        {
                                        case EGO_MORGUL:
                                                if (one_in_(6)) add_flag(o_ptr->art_flags, TR_TY_CURSE);
                                                if (one_in_(3)) o_ptr->curse_flags |= (TRC_HEAVY_CURSE);
                                        case EGO_WEIRD:
                                                if (one_in_(4)) add_flag(o_ptr->art_flags, TR_BRAND_POIS);
                                                if (one_in_(4)) add_flag(o_ptr->art_flags, TR_RES_NETHER);
                                                if (one_in_(3)) add_flag(o_ptr->art_flags, TR_NO_MAGIC);
                                                if (one_in_(6)) add_flag(o_ptr->art_flags, TR_NO_TELE);
                                                if (one_in_(6)) add_flag(o_ptr->art_flags, TR_TY_CURSE);
                                                if (one_in_(6)) add_flag(o_ptr->art_flags, TR_ADD_H_CURSE);
                                        }
                                }
                        }

                        break;
                }


                case TV_BOW:
                {
                        /* Very good */
                        if (power > 1)
                        {
                                if (one_in_(20) || (power > 2)) /* power > 2 is debug only */
                                {
                                        create_artifact(o_ptr, FALSE);
                                        break;
                                }
                                o_ptr->name2 = get_random_ego(INVEN_BOW, TRUE);
                        }

                        break;
                }


                case TV_BOLT:
                case TV_ARROW:
                case TV_SHOT:
                {
                        /* Very good */
                        if (power > 1)
                        {
                                if (power > 2) /* power > 2 is debug only */
                                {
                                        create_artifact(o_ptr, FALSE);
                                        break;
                                }

                                o_ptr->name2 = get_random_ego(INVEN_AMMO, TRUE);

                                switch (o_ptr->name2)
                                {
                                case EGO_SLAYING_BOLT:
                                        o_ptr->dd++;
                                        break;
                                }

                                /* Hack -- super-charge the damage dice */
                                while (one_in_(10L * o_ptr->dd * o_ptr->ds)) o_ptr->dd++;

                                /* Hack -- restrict the damage dice */
                                if (o_ptr->dd > 9) o_ptr->dd = 9;
                        }

                        /* Very cursed */
                        else if (power < -1)
                        {
                                /* Roll for ego-item */
                                if (randint0(MAX_DEPTH) < level)
                                {
                                        o_ptr->name2 = get_random_ego(INVEN_AMMO, FALSE);
                                }
                        }

                        break;
                }
        }
}

/*!
 * @brief ¥É¥é¥´¥óÁõÈ÷¤Ë¥é¥ó¥À¥à¤ÊÂÑÀ­¤òÍ¿¤¨¤ë
 * @param o_ptr ¶¯²½¤òÍ¿¤¨¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @return ¤Ê¤·
 */
static void dragon_resist(object_type * o_ptr)
{
        do
        {
                if (one_in_(4))
                        one_dragon_ele_resistance(o_ptr);
                else
                        one_high_resistance(o_ptr);
        }
        while (one_in_(2));
}

/*!
 * @brief ¥ª¥Ö¥¸¥§¥¯¥È¤Ë¥é¥ó¥À¥à¤Ê¶¯¤¤ESP¤òÍ¿¤¨¤ë
 * @param o_ptr ¶¯²½¤òÍ¿¤¨¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @return ¤Ê¤·
 */
static bool add_esp_strong(object_type *o_ptr)
{
        bool nonliv = FALSE;

        switch (randint1(3))
        {
        case 1: add_flag(o_ptr->art_flags, TR_ESP_EVIL); break;
        case 2: add_flag(o_ptr->art_flags, TR_TELEPATHY); break;
        case 3: add_flag(o_ptr->art_flags, TR_ESP_NONLIVING); nonliv = TRUE; break;
        }

        return nonliv;
}

/*!
 * @brief ¥ª¥Ö¥¸¥§¥¯¥È¤Ë¥é¥ó¥À¥à¤Ê¼å¤¤ESP¤òÍ¿¤¨¤ë
 * @param o_ptr ¶¯²½¤òÍ¿¤¨¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @param extra TRUE¤Ê¤é¤ÐESP¤ÎºÇÂçÉÕÍ¿¿ô¤¬Áý¤¨¤ë(TRUE -> 3+1d6 / FALSE -> 1d3)
 * @return ¤Ê¤·
 */
static void add_esp_weak(object_type *o_ptr, bool extra)
{
        int i;
        u32b weak_esp_list[] = {
                TR_ESP_ANIMAL,
                TR_ESP_UNDEAD,
                TR_ESP_DEMON,
                TR_ESP_ORC,
                TR_ESP_TROLL,
                TR_ESP_GIANT,
                TR_ESP_DRAGON,
                TR_ESP_HUMAN,
                TR_ESP_GOOD,
                TR_ESP_UNIQUE,
        };
        const int MAX_ESP_WEAK = sizeof(weak_esp_list) / sizeof(weak_esp_list[0]);
        const int add_count = MIN(MAX_ESP_WEAK, (extra) ? (3 + randint1(randint1(6))) : randint1(3));

        /* Add unduplicated weak esp flags randomly */
        for (i = 0; i < add_count; ++ i)
        {
                int choice = rand_range(i, MAX_ESP_WEAK - 1);

                add_flag(o_ptr->art_flags, weak_esp_list[choice]);
                weak_esp_list[choice] = weak_esp_list[i];
        }
}


/*!
 * @brief Ëɶñ·Ï¥ª¥Ö¥¸¥§¥¯¥È¤ËÀ¸À®¥é¥ó¥¯¤´¤È¤Î¶¯²½¤òÍ¿¤¨¤ë¥µ¥Ö¥ë¡¼¥Á¥ó
 * Apply magic to an item known to be "armor"
 * @param o_ptr ¶¯²½¤òÍ¿¤¨¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @param level À¸À®´ð½à³¬
 * @param power À¸À®¥é¥ó¥¯
 * @return ¤Ê¤·
 * @details
 * Hack -- note special processing for crown/helm\n
 * Hack -- note special processing for robe of permanence\n
 */
static void a_m_aux_2(object_type *o_ptr, int level, int power)
{
        int toac1 = randint1(5) + m_bonus(5, level);

        int toac2 = m_bonus(10, level);

        /* Good */
        if (power > 0)
        {
                /* Enchant */
                o_ptr->to_a += toac1;

                /* Very good */
                if (power > 1)
                {
                        /* Enchant again */
                        o_ptr->to_a += toac2;
                }
        }

        /* Cursed */
        else if (power < 0)
        {
                /* Penalize */
                o_ptr->to_a -= toac1;

                /* Very cursed */
                if (power < -1)
                {
                        /* Penalize again */
                        o_ptr->to_a -= toac2;
                }

                /* Cursed (if "bad") */
                if (o_ptr->to_a < 0) o_ptr->curse_flags |= TRC_CURSED;
        }


        /* Analyze type */
        switch (o_ptr->tval)
        {
                case TV_DRAG_ARMOR:
                {
                        if (one_in_(50) || (power > 2)) /* power > 2 is debug only */
                                create_artifact(o_ptr, FALSE);

                        /* Mention the item */
                        if (cheat_peek) object_mention(o_ptr);

                        break;
                }

                case TV_HARD_ARMOR:
                case TV_SOFT_ARMOR:
                {
                        /* Very good */
                        if (power > 1)
                        {
                                /* Hack -- Try for "Robes of the Magi" */
                                if ((o_ptr->tval == TV_SOFT_ARMOR) &&
                                    (o_ptr->sval == SV_ROBE) &&
                                    (randint0(100) < 15))
                                {
                                        if (one_in_(5))
                                        {
                                                o_ptr->name2 = EGO_YOIYAMI;
                                                o_ptr->k_idx = lookup_kind(TV_SOFT_ARMOR, SV_YOIYAMI_ROBE);
                                                o_ptr->sval = SV_YOIYAMI_ROBE;
                                                o_ptr->ac = 0;
                                                o_ptr->to_a = 0;
                                        }
                                        else
                                        {
                                                o_ptr->name2 = EGO_PERMANENCE;
                                        }
                                        break;
                                }

                                if (one_in_(20) || (power > 2)) /* power > 2 is debug only */
                                {
                                        create_artifact(o_ptr, FALSE);
                                        break;
                                }

                                while (1)
                                {
                                        bool okay_flag = TRUE;

                                        o_ptr->name2 = get_random_ego(INVEN_BODY, TRUE);

                                        switch (o_ptr->name2)
                                        {
                                          case EGO_DWARVEN:
                                                if (o_ptr->tval != TV_HARD_ARMOR)
                                                {
                                                        okay_flag = FALSE;
                                                        break;
                                                }
                                          case EGO_DRUID:
                                                if (o_ptr->tval != TV_SOFT_ARMOR)
                                                {
                                                        okay_flag = FALSE;
                                                        break;
                                                }
                                          default:
                                                break;
                                        }

                                        if (okay_flag)
                                                break;
                                }
                                switch (o_ptr->name2)
                                {
                                  case EGO_RESISTANCE:
                                        if (one_in_(4))
                                                add_flag(o_ptr->art_flags, TR_RES_POIS);
                                                break;
                                  case EGO_DWARVEN:
                                        o_ptr->weight = (2 * k_info[o_ptr->k_idx].weight / 3);
                                        o_ptr->ac = k_info[o_ptr->k_idx].ac + 5;
                                        break;
                                        
                                  case EGO_A_DEMON:
                                        if(one_in_(3)) o_ptr->curse_flags |= (TRC_HEAVY_CURSE);
                                        one_in_(3) ? 
                                                add_flag(o_ptr->art_flags, TR_DRAIN_EXP) :
                                                one_in_(2) ?
                                                        add_flag(o_ptr->art_flags, TR_DRAIN_HP) :
                                                        add_flag(o_ptr->art_flags, TR_DRAIN_MANA);
                                                
                                        if (one_in_(3)) add_flag(o_ptr->art_flags, TR_AGGRAVATE);
                                        if (one_in_(3)) add_flag(o_ptr->art_flags, TR_ADD_L_CURSE);
                                        if (one_in_(5)) add_flag(o_ptr->art_flags, TR_ADD_H_CURSE);
                                        if (one_in_(5)) add_flag(o_ptr->art_flags, TR_DRAIN_HP);
                                        if (one_in_(5)) add_flag(o_ptr->art_flags, TR_DRAIN_MANA);
                                        if (one_in_(5)) add_flag(o_ptr->art_flags, TR_DRAIN_EXP);
                                        if (one_in_(5)) add_flag(o_ptr->art_flags, TR_TY_CURSE);
                                        if (one_in_(5)) add_flag(o_ptr->art_flags, TR_CALL_DEMON);
                                        break;
                                  case EGO_A_MORGUL:
                                        if (one_in_(3)) o_ptr->curse_flags |= (TRC_HEAVY_CURSE);
                                        if (one_in_(9)) add_flag(o_ptr->art_flags, TR_TY_CURSE);
                                        if (one_in_(4)) add_flag(o_ptr->art_flags, TR_ADD_H_CURSE);
                                        if (one_in_(6)) add_flag(o_ptr->art_flags, TR_AGGRAVATE);
                                        if (one_in_(9)) add_flag(o_ptr->art_flags, TR_NO_MAGIC);
                                        if (one_in_(9)) add_flag(o_ptr->art_flags, TR_NO_TELE);
                                        break;
                                  default:
                                        break;
                                }
                        }

                        break;
                }

                case TV_SHIELD:
                {

                        if (o_ptr->sval == SV_DRAGON_SHIELD)
                        {
                                /* Mention the item */
                                if (cheat_peek) object_mention(o_ptr);
                                dragon_resist(o_ptr);
                                if (!one_in_(3)) break;
                        }

                        /* Very good */
                        if (power > 1)
                        {
                                if (one_in_(20) || (power > 2)) /* power > 2 is debug only */
                                {
                                        create_artifact(o_ptr, FALSE);
                                        break;
                                }
                                
                                while(1)
                                {
                                        o_ptr->name2 = get_random_ego(INVEN_LARM, TRUE);
                                        if (o_ptr->sval != SV_SMALL_METAL_SHIELD && o_ptr->sval != SV_LARGE_METAL_SHIELD 
                                                                && o_ptr->name2 == EGO_S_DWARVEN)
                                        {
                                                continue;
                                        }
                                        break;
                                }
                                
                                switch (o_ptr->name2)
                                {
                                case EGO_ENDURANCE:
                                        if (!one_in_(3)) one_high_resistance(o_ptr);
                                        if (one_in_(4)) add_flag(o_ptr->art_flags, TR_RES_POIS);
                                        break;
                                case EGO_REFLECTION:
                                        if (o_ptr->sval == SV_MIRROR_SHIELD)
                                                o_ptr->name2 = 0;
                                        break;
                                        
                                case EGO_S_DWARVEN:
                                        o_ptr->weight = (2 * k_info[o_ptr->k_idx].weight / 3);
                                        o_ptr->ac = k_info[o_ptr->k_idx].ac + 3;
                                        break;
                                }
                        }
                        break;
                }

                case TV_GLOVES:
                {
                        if (o_ptr->sval == SV_SET_OF_DRAGON_GLOVES)
                        {
                                /* Mention the item */
                                if (cheat_peek) object_mention(o_ptr);
                                dragon_resist(o_ptr);
                                if (!one_in_(3)) break;
                        }
                        if (power > 1)
                        {
                                if (one_in_(20) || (power > 2)) /* power > 2 is debug only */
                                {
                                        create_artifact(o_ptr, FALSE);
                                        break;
                                }
                                o_ptr->name2 = get_random_ego(INVEN_HANDS, TRUE);
                        }
                        
                        /* Very cursed */
                        else if (power < -1)
                        {
                                o_ptr->name2 = get_random_ego(INVEN_HANDS, FALSE);
                        }

                        break;
                }

                case TV_BOOTS:
                {
                        if (o_ptr->sval == SV_PAIR_OF_DRAGON_GREAVE)
                        {
                                /* Mention the item */
                                if (cheat_peek) object_mention(o_ptr);
                                dragon_resist(o_ptr);
                                if (!one_in_(3)) break;
                        }
                        /* Very good */
                        if (power > 1)
                        {
                                if (one_in_(20) || (power > 2)) /* power > 2 is debug only */
                                {
                                        create_artifact(o_ptr, FALSE);
                                        break;
                                }
                                o_ptr->name2 = get_random_ego(INVEN_FEET, TRUE);

                                switch (o_ptr->name2)
                                {
                                case EGO_SLOW_DESCENT:
                                        if (one_in_(2))
                                        {
                                                one_high_resistance(o_ptr);
                                        }
                                        break;
                                }
                        }
                        /* Very cursed */
                        else if (power < -1)
                        {
                                o_ptr->name2 = get_random_ego(INVEN_FEET, FALSE);
                        }

                        break;
                }

                case TV_CROWN:
                {
                        /* Very good */
                        if (power > 1)
                        {
                                if (one_in_(20) || (power > 2)) /* power > 2 is debug only */
                                {
                                        create_artifact(o_ptr, FALSE);
                                        break;
                                }
                                while (1)
                                {
                                        bool ok_flag = TRUE;
                                        o_ptr->name2 = get_random_ego(INVEN_HEAD, TRUE);

                                        switch (o_ptr->name2)
                                        {
                                        case EGO_TELEPATHY:
                                                if (add_esp_strong(o_ptr)) add_esp_weak(o_ptr, TRUE);
                                                else add_esp_weak(o_ptr, FALSE);
                                                break;
                                        case EGO_MAGI:
                                        case EGO_MIGHT:
                                        case EGO_REGENERATION:
                                        case EGO_LORDLINESS:
                                        case EGO_BASILISK:
                                                break;
                                        case EGO_SEEING:
                                                if (one_in_(3))
                                                {
                                                        if (one_in_(2)) add_esp_strong(o_ptr);
                                                        else add_esp_weak(o_ptr, FALSE);
                                                }
                                                break;
                                        default:/* not existing crown (wisdom,lite, etc...) */
                                                ok_flag = FALSE;
                                        }
                                        if (ok_flag)
                                                break; /* while (1) */
                                }
                                break;
                        }

                        /* Very cursed */
                        else if (power < -1)
                        {       
                                while (1)
                                {
                                        bool ok_flag = TRUE;
                                        o_ptr->name2 = get_random_ego(INVEN_HEAD, FALSE);

                                        switch (o_ptr->name2)
                                        {
                                          case EGO_ANCIENT_CURSE:
                                                if (one_in_(3)) add_flag(o_ptr->art_flags, TR_NO_MAGIC);
                                                if (one_in_(3)) add_flag(o_ptr->art_flags, TR_NO_TELE);
                                                if (one_in_(3)) add_flag(o_ptr->art_flags, TR_TY_CURSE);
                                                if (one_in_(3)) add_flag(o_ptr->art_flags, TR_DRAIN_EXP);
                                                if (one_in_(3)) add_flag(o_ptr->art_flags, TR_DRAIN_HP);
                                                if (one_in_(3)) add_flag(o_ptr->art_flags, TR_DRAIN_MANA);
                                                break;
                                        }
                                        if (ok_flag)
                                                break; /* while (1) */
                                }
                        }

                        break;
                }

                case TV_HELM:
                {
                        if (o_ptr->sval == SV_DRAGON_HELM)
                        {
                                /* Mention the item */
                                if (cheat_peek) object_mention(o_ptr);
                                dragon_resist(o_ptr);
                                if (!one_in_(3)) break;
                        }

                        /* Very good */
                        if (power > 1)
                        {
                                if (one_in_(20) || (power > 2)) /* power > 2 is debug only */
                                {
                                        create_artifact(o_ptr, FALSE);
                                        break;
                                }
                                while (1)
                                {
                                        bool ok_flag = TRUE;
                                        o_ptr->name2 = get_random_ego(INVEN_HEAD, TRUE);

                                        switch (o_ptr->name2)
                                        {
                                        case EGO_BRILLIANCE:
                                        case EGO_DARK:
                                        case EGO_INFRAVISION:
                                        case EGO_H_PROTECTION:
                                                break;
                                        case EGO_SEEING:
                                                if (one_in_(7))
                                                {
                                                        if (one_in_(2)) add_esp_strong(o_ptr);
                                                        else add_esp_weak(o_ptr, FALSE);
                                                }
                                                break;
                                        case EGO_LITE:
                                                if (one_in_(3)) add_flag(o_ptr->art_flags, TR_LITE_1);
                                                if (one_in_(3)) add_flag(o_ptr->art_flags, TR_LITE_2);
                                                break;
                                        case EGO_H_DEMON:
                                                if(one_in_(3)) o_ptr->curse_flags |= (TRC_HEAVY_CURSE);
                                                one_in_(3) ? 
                                                        add_flag(o_ptr->art_flags, TR_DRAIN_EXP) :
                                                        one_in_(2) ?
                                                                add_flag(o_ptr->art_flags, TR_DRAIN_HP) :
                                                                add_flag(o_ptr->art_flags, TR_DRAIN_MANA);
                                                
                                                if (one_in_(3)) add_flag(o_ptr->art_flags, TR_AGGRAVATE);
                                                if (one_in_(3)) add_flag(o_ptr->art_flags, TR_ADD_L_CURSE);
                                                if (one_in_(5)) add_flag(o_ptr->art_flags, TR_ADD_H_CURSE);
                                                if (one_in_(5)) add_flag(o_ptr->art_flags, TR_DRAIN_HP);
                                                if (one_in_(5)) add_flag(o_ptr->art_flags, TR_DRAIN_MANA);
                                                if (one_in_(5)) add_flag(o_ptr->art_flags, TR_DRAIN_EXP);
                                                if (one_in_(5)) add_flag(o_ptr->art_flags, TR_TY_CURSE);
                                                if (one_in_(5)) add_flag(o_ptr->art_flags, TR_CALL_DEMON);
                                                break;
                                        default:/* not existing helm (Magi, Might, etc...)*/
                                                ok_flag = FALSE;
                                        }
                                        if (ok_flag)
                                                break; /* while (1) */
                                }
                                break;
                        }
                        /* Very cursed */
                        else if (power < -1)
                        {
                                while (1)
                                {
                                        bool ok_flag = TRUE;
                                        o_ptr->name2 = get_random_ego(INVEN_HEAD, FALSE);

                                        switch (o_ptr->name2)
                                        {
                                          case EGO_ANCIENT_CURSE:
                                                ok_flag = FALSE;
                                        }
                                        if (ok_flag)
                                                break; /* while (1) */
                                }
                        }
                        break;
                }

                case TV_CLOAK:
                {
                        /* Very good */
                        if (power > 1)
                        {
                                if (one_in_(20) || (power > 2)) /* power > 2 is debug only */
                                {
                                        create_artifact(o_ptr, FALSE);
                                        break;
                                }
                                o_ptr->name2 = get_random_ego(INVEN_OUTER, TRUE);

                                switch (o_ptr->name2)
                                {
                                case EGO_BAT:
                                        o_ptr->to_d -= 6;
                                        o_ptr->to_h -= 6;
                                        break;
                                  case EGO_NAZGUL:
                                        o_ptr->to_d -= 3;
                                        o_ptr->to_h -= 3;
                                        if (one_in_(3)) add_flag(o_ptr->art_flags, TR_COWARDICE);
                                        if (one_in_(3)) add_flag(o_ptr->art_flags, TR_CALL_UNDEAD);
                                        if (one_in_(3)) add_flag(o_ptr->art_flags, TR_SLOW_REGEN);
                                        if (one_in_(3)) add_flag(o_ptr->art_flags, TR_DRAIN_EXP);
                                        break;
                                }

                        }

                        /* Very cursed */
                        else if (power < -1)
                        {
                                o_ptr->name2 = get_random_ego(INVEN_OUTER, FALSE);
                        }

                        break;
                }
        }
}


/*!
 * @brief Áõ¾þÉÊ·Ï¥ª¥Ö¥¸¥§¥¯¥È¤ËÀ¸À®¥é¥ó¥¯¤´¤È¤Î¶¯²½¤òÍ¿¤¨¤ë¥µ¥Ö¥ë¡¼¥Á¥ó
 * Apply magic to an item known to be a "ring" or "amulet"
 * @param o_ptr ¶¯²½¤òÍ¿¤¨¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @param level À¸À®´ð½à³¬
 * @param power À¸À®¥é¥ó¥¯
 * @return ¤Ê¤·
 * @details
 * Hack -- note special "pval boost" code for ring of speed\n
 * Hack -- note that some items must be cursed (or blessed)\n
 */
static void a_m_aux_3(object_type *o_ptr, int level, int power)
{
        /* Apply magic (good or bad) according to type */
        switch (o_ptr->tval)
        {
                case TV_RING:
                {
                        /* Analyze */
                        switch (o_ptr->sval)
                        {
                                case SV_RING_ATTACKS:
                                {
                                        /* Stat bonus */
                                        o_ptr->pval = m_bonus(2, level);
                                        if (one_in_(15)) o_ptr->pval++;
                                        if (o_ptr->pval < 1) o_ptr->pval = 1;

                                        /* Cursed */
                                        if (power < 0)
                                        {
                                                /* Broken */
                                                o_ptr->ident |= (IDENT_BROKEN);

                                                /* Cursed */
                                                o_ptr->curse_flags |= TRC_CURSED;

                                                /* Reverse pval */
                                                o_ptr->pval = 0 - (o_ptr->pval);
                                        }

                                        break;
                                }

                                case SV_RING_SHOTS:
                                {
                                        break;
                                }

                                /* Strength, Constitution, Dexterity, Intelligence */
                                case SV_RING_STR:
                                case SV_RING_CON:
                                case SV_RING_DEX:
                                {
                                        /* Stat bonus */
                                        o_ptr->pval = 1 + m_bonus(5, level);

                                        /* Cursed */
                                        if (power < 0)
                                        {
                                                /* Broken */
                                                o_ptr->ident |= (IDENT_BROKEN);

                                                /* Cursed */
                                                o_ptr->curse_flags |= TRC_CURSED;

                                                /* Reverse pval */
                                                o_ptr->pval = 0 - (o_ptr->pval);
                                        }

                                        break;
                                }

                                /* Ring of Speed! */
                                case SV_RING_SPEED:
                                {
                                        /* Base speed (1 to 10) */
                                        o_ptr->pval = randint1(5) + m_bonus(5, level);

                                        /* Super-charge the ring */
                                        while (randint0(100) < 50) o_ptr->pval++;

                                        /* Cursed Ring */
                                        if (power < 0)
                                        {
                                                /* Broken */
                                                o_ptr->ident |= (IDENT_BROKEN);

                                                /* Cursed */
                                                o_ptr->curse_flags |= TRC_CURSED;

                                                /* Reverse pval */
                                                o_ptr->pval = 0 - (o_ptr->pval);

                                                break;
                                        }

                                        /* Mention the item */
                                        if (cheat_peek) object_mention(o_ptr);

                                        break;
                                }

                                case SV_RING_LORDLY:
                                {
                                        do
                                        {
                                                one_lordly_high_resistance(o_ptr);
                                        }
                                        while (one_in_(4));

                                        /* Bonus to armor class */
                                        o_ptr->to_a = 10 + randint1(5) + m_bonus(10, level);
                                }
                                break;

                                case SV_RING_WARNING:
                                {
                                        if (one_in_(3)) one_low_esp(o_ptr);
                                        break;
                                }

                                /* Searching */
                                case SV_RING_SEARCHING:
                                {
                                        /* Bonus to searching */
                                        o_ptr->pval = 1 + m_bonus(5, level);

                                        /* Cursed */
                                        if (power < 0)
                                        {
                                                /* Broken */
                                                o_ptr->ident |= (IDENT_BROKEN);

                                                /* Cursed */
                                                o_ptr->curse_flags |= TRC_CURSED;

                                                /* Reverse pval */
                                                o_ptr->pval = 0 - (o_ptr->pval);
                                        }

                                        break;
                                }

                                /* Flames, Acid, Ice */
                                case SV_RING_FLAMES:
                                case SV_RING_ACID:
                                case SV_RING_ICE:
                                case SV_RING_ELEC:
                                {
                                        /* Bonus to armor class */
                                        o_ptr->to_a = 5 + randint1(5) + m_bonus(10, level);
                                        break;
                                }

                                /* Weakness, Stupidity */
                                case SV_RING_WEAKNESS:
                                case SV_RING_STUPIDITY:
                                {
                                        /* Broken */
                                        o_ptr->ident |= (IDENT_BROKEN);

                                        /* Cursed */
                                        o_ptr->curse_flags |= TRC_CURSED;

                                        /* Penalize */
                                        o_ptr->pval = 0 - (1 + m_bonus(5, level));
                                        if (power > 0) power = 0 - power;

                                        break;
                                }

                                /* WOE, Stupidity */
                                case SV_RING_WOE:
                                {
                                        /* Broken */
                                        o_ptr->ident |= (IDENT_BROKEN);

                                        /* Cursed */
                                        o_ptr->curse_flags |= TRC_CURSED;

                                        /* Penalize */
                                        o_ptr->to_a = 0 - (5 + m_bonus(10, level));
                                        o_ptr->pval = 0 - (1 + m_bonus(5, level));
                                        if (power > 0) power = 0 - power;

                                        break;
                                }

                                /* Ring of damage */
                                case SV_RING_DAMAGE:
                                {
                                        /* Bonus to damage */
                                        o_ptr->to_d = 1 + randint1(5) + m_bonus(16, level);

                                        /* Cursed */
                                        if (power < 0)
                                        {
                                                /* Broken */
                                                o_ptr->ident |= (IDENT_BROKEN);

                                                /* Cursed */
                                                o_ptr->curse_flags |= TRC_CURSED;

                                                /* Reverse bonus */
                                                o_ptr->to_d = 0 - o_ptr->to_d;
                                        }

                                        break;
                                }

                                /* Ring of Accuracy */
                                case SV_RING_ACCURACY:
                                {
                                        /* Bonus to hit */
                                        o_ptr->to_h = 1 + randint1(5) + m_bonus(16, level);

                                        /* Cursed */
                                        if (power < 0)
                                        {
                                                /* Broken */
                                                o_ptr->ident |= (IDENT_BROKEN);

                                                /* Cursed */
                                                o_ptr->curse_flags |= TRC_CURSED;

                                                /* Reverse tohit */
                                                o_ptr->to_h = 0 - o_ptr->to_h;
                                        }

                                        break;
                                }

                                /* Ring of Protection */
                                case SV_RING_PROTECTION:
                                {
                                        /* Bonus to armor class */
                                        o_ptr->to_a = 5 + randint1(8) + m_bonus(10, level);

                                        /* Cursed */
                                        if (power < 0)
                                        {
                                                /* Broken */
                                                o_ptr->ident |= (IDENT_BROKEN);

                                                /* Cursed */
                                                o_ptr->curse_flags |= TRC_CURSED;

                                                /* Reverse toac */
                                                o_ptr->to_a = 0 - o_ptr->to_a;
                                        }

                                        break;
                                }

                                /* Ring of Slaying */
                                case SV_RING_SLAYING:
                                {
                                        /* Bonus to damage and to hit */
                                        o_ptr->to_d = randint1(5) + m_bonus(12, level);
                                        o_ptr->to_h = randint1(5) + m_bonus(12, level);

                                        /* Cursed */
                                        if (power < 0)
                                        {
                                                /* Broken */
                                                o_ptr->ident |= (IDENT_BROKEN);

                                                /* Cursed */
                                                o_ptr->curse_flags |= TRC_CURSED;

                                                /* Reverse bonuses */
                                                o_ptr->to_h = 0 - o_ptr->to_h;
                                                o_ptr->to_d = 0 - o_ptr->to_d;
                                        }

                                        break;
                                }

                                case SV_RING_MUSCLE:
                                {
                                        o_ptr->pval = 1 + m_bonus(3, level);
                                        if (one_in_(4)) o_ptr->pval++;

                                        /* Cursed */
                                        if (power < 0)
                                        {
                                                /* Broken */
                                                o_ptr->ident |= (IDENT_BROKEN);

                                                /* Cursed */
                                                o_ptr->curse_flags |= TRC_CURSED;

                                                /* Reverse bonuses */
                                                o_ptr->pval = 0 - o_ptr->pval;
                                        }

                                        break;
                                }
                                case SV_RING_AGGRAVATION:
                                {
                                        /* Broken */
                                        o_ptr->ident |= (IDENT_BROKEN);

                                        /* Cursed */
                                        o_ptr->curse_flags |= TRC_CURSED;

                                        if (power > 0) power = 0 - power;
                                        break;
                                }
                        }
                        if ((one_in_(400) && (power > 0) && !object_is_cursed(o_ptr) && (level > 79))
                            || (power > 2)) /* power > 2 is debug only */
                        {
                                o_ptr->pval = MIN(o_ptr->pval, 4);
                                /* Randart amulet */
                                create_artifact(o_ptr, FALSE);
                        }
                        else if ((power == 2) && one_in_(2))
                        {
                                while(!o_ptr->name2)
                                {
                                        int tmp = m_bonus(10, level);
                                        object_kind *k_ptr = &k_info[o_ptr->k_idx];
                                        switch(randint1(28))
                                        {
                                        case 1: case 2:
                                                o_ptr->name2 = EGO_RING_THROW;
                                                break;
                                        case 3: case 4:
                                                if (have_flag(k_ptr->flags, TR_REGEN)) break;
                                                o_ptr->name2 = EGO_RING_REGEN;
                                                break;
                                        case 5: case 6:
                                                if (have_flag(k_ptr->flags, TR_LITE_1)) break;
                                                o_ptr->name2 = EGO_RING_LITE;
                                                break;
                                        case 7: case 8:
                                                if (have_flag(k_ptr->flags, TR_TELEPORT)) break;
                                                o_ptr->name2 = EGO_RING_TELEPORT;
                                                break;
                                        case 9: case 10:
                                                if (o_ptr->to_h) break;
                                                o_ptr->name2 = EGO_RING_TO_H;
                                                break;
                                        case 11: case 12:
                                                if (o_ptr->to_d) break;
                                                o_ptr->name2 = EGO_RING_TO_D;
                                                break;
                                        case 13:
                                                if ((o_ptr->to_h) || (o_ptr->to_d)) break;
                                                o_ptr->name2 = EGO_RING_SLAY;
                                                break;
                                        case 14:
                                                if ((have_flag(k_ptr->flags, TR_STR)) || o_ptr->to_h || o_ptr->to_d) break;
                                                o_ptr->name2 = EGO_RING_WIZARD;
                                                break;
                                        case 15:
                                                if (have_flag(k_ptr->flags, TR_ACTIVATE)) break;
                                                o_ptr->name2 = EGO_RING_HERO;
                                                break;
                                        case 16:
                                                if (have_flag(k_ptr->flags, TR_ACTIVATE)) break;
                                                if (tmp > 8) o_ptr->name2 = EGO_RING_MANA_BALL;
                                                else if (tmp > 4) o_ptr->name2 = EGO_RING_MANA_BOLT;
                                                else o_ptr->name2 = EGO_RING_MAGIC_MIS;
                                                break;
                                        case 17:
                                                if (have_flag(k_ptr->flags, TR_ACTIVATE)) break;
                                                if (!(have_flag(k_ptr->flags, TR_RES_FIRE)) && (have_flag(k_ptr->flags, TR_RES_COLD) || have_flag(k_ptr->flags, TR_RES_ELEC) || have_flag(k_ptr->flags, TR_RES_ACID))) break;
                                                if (tmp > 7) o_ptr->name2 = EGO_RING_DRAGON_F;
                                                else if (tmp > 3) o_ptr->name2 = EGO_RING_FIRE_BALL;
                                                else o_ptr->name2 = EGO_RING_FIRE_BOLT;
                                                break;
                                        case 18:
                                                if (have_flag(k_ptr->flags, TR_ACTIVATE)) break;
                                                if (!(have_flag(k_ptr->flags, TR_RES_COLD)) && (have_flag(k_ptr->flags, TR_RES_FIRE) || have_flag(k_ptr->flags, TR_RES_ELEC) || have_flag(k_ptr->flags, TR_RES_ACID))) break;
                                                if (tmp > 7) o_ptr->name2 = EGO_RING_DRAGON_C;
                                                else if (tmp > 3) o_ptr->name2 = EGO_RING_COLD_BALL;
                                                else o_ptr->name2 = EGO_RING_COLD_BOLT;
                                                break;
                                        case 19:
                                                if (have_flag(k_ptr->flags, TR_ACTIVATE)) break;
                                                if (!(have_flag(k_ptr->flags, TR_RES_ELEC)) && (have_flag(k_ptr->flags, TR_RES_COLD) || have_flag(k_ptr->flags, TR_RES_FIRE) || have_flag(k_ptr->flags, TR_RES_ACID))) break;
                                                if (tmp > 4) o_ptr->name2 = EGO_RING_ELEC_BALL;
                                                else o_ptr->name2 = EGO_RING_ELEC_BOLT;
                                                break;
                                        case 20:
                                                if (have_flag(k_ptr->flags, TR_ACTIVATE)) break;
                                                if (!(have_flag(k_ptr->flags, TR_RES_ACID)) && (have_flag(k_ptr->flags, TR_RES_COLD) || have_flag(k_ptr->flags, TR_RES_ELEC) || have_flag(k_ptr->flags, TR_RES_FIRE))) break;
                                                if (tmp > 4) o_ptr->name2 = EGO_RING_ACID_BALL;
                                                else o_ptr->name2 = EGO_RING_ACID_BOLT;
                                                break;
                                        case 21: case 22: case 23: case 24: case 25: case 26:
                                                switch (o_ptr->sval)
                                                {
                                                case SV_RING_SPEED:
                                                        if (!one_in_(3)) break;
                                                        o_ptr->name2 = EGO_RING_D_SPEED;
                                                        break;
                                                case SV_RING_DAMAGE:
                                                case SV_RING_ACCURACY:
                                                case SV_RING_SLAYING:
                                                        if (one_in_(2)) break;
                                                        if (one_in_(2)) o_ptr->name2 = EGO_RING_HERO;
                                                        else
                                                        {
                                                                o_ptr->name2 = EGO_RING_BERSERKER;
                                                                o_ptr->to_h -= 2+randint1(4);
                                                                o_ptr->to_d += 2+randint1(4);
                                                        }
                                                        break;
                                                case SV_RING_PROTECTION:
                                                        o_ptr->name2 = EGO_RING_SUPER_AC;
                                                        o_ptr->to_a += 7 + m_bonus(5, level);
                                                        break;
                                                case SV_RING_RES_FEAR:
                                                        o_ptr->name2 = EGO_RING_HERO;
                                                        break;
                                                case SV_RING_SHOTS:
                                                        if (one_in_(2)) break;
                                                        o_ptr->name2 = EGO_RING_HUNTER;
                                                        break;
                                                case SV_RING_SEARCHING:
                                                        o_ptr->name2 = EGO_RING_STEALTH;
                                                        break;
                                                case SV_RING_TELEPORTATION:
                                                        o_ptr->name2 = EGO_RING_TELE_AWAY;
                                                        break;
                                                case SV_RING_RES_BLINDNESS:
                                                        if (one_in_(2))
                                                                o_ptr->name2 = EGO_RING_RES_LITE;
                                                        else
                                                                o_ptr->name2 = EGO_RING_RES_DARK;
                                                        break;
                                                case SV_RING_LORDLY:
                                                        if (!one_in_(20)) break;
                                                        one_lordly_high_resistance(o_ptr);
                                                        one_lordly_high_resistance(o_ptr);
                                                        o_ptr->name2 = EGO_RING_TRUE;
                                                        break;
                                                case SV_RING_SUSTAIN:
                                                        if (!one_in_(4)) break;
                                                        o_ptr->name2 = EGO_RING_RES_TIME;
                                                        break;
                                                case SV_RING_FLAMES:
                                                        if (!one_in_(2)) break;
                                                        o_ptr->name2 = EGO_RING_DRAGON_F;
                                                        break;
                                                case SV_RING_ICE:
                                                        if (!one_in_(2)) break;
                                                        o_ptr->name2 = EGO_RING_DRAGON_C;
                                                        break;
                                                case SV_RING_WARNING:
                                                        if (!one_in_(2)) break;
                                                        o_ptr->name2 = EGO_RING_M_DETECT;
                                                        break;
                                                default:
                                                        break;
                                                }
                                                break;
                                        }
                                }
                                /* Uncurse it */
                                o_ptr->curse_flags = 0L;
                        }
                        else if ((power == -2) && one_in_(2))
                        {
                                if (o_ptr->to_h > 0) o_ptr->to_h = 0-o_ptr->to_h;
                                if (o_ptr->to_d > 0) o_ptr->to_d = 0-o_ptr->to_d;
                                if (o_ptr->to_a > 0) o_ptr->to_a = 0-o_ptr->to_a;
                                if (o_ptr->pval > 0) o_ptr->pval = 0-o_ptr->pval;
                                o_ptr->art_flags[0] = 0;
                                o_ptr->art_flags[1] = 0;
                                while(!o_ptr->name2)
                                {
                                        object_kind *k_ptr = &k_info[o_ptr->k_idx];
                                        switch(randint1(5))
                                        {
                                        case 1:
                                                if (have_flag(k_ptr->flags, TR_DRAIN_EXP)) break;
                                                o_ptr->name2 = EGO_RING_DRAIN_EXP;
                                                break;
                                        case 2:
                                                o_ptr->name2 = EGO_RING_NO_MELEE;
                                                break;
                                        case 3:
                                                if (have_flag(k_ptr->flags, TR_AGGRAVATE)) break;
                                                o_ptr->name2 = EGO_RING_AGGRAVATE;
                                                break;
                                        case 4:
                                                if (have_flag(k_ptr->flags, TR_TY_CURSE)) break;
                                                o_ptr->name2 = EGO_RING_TY_CURSE;
                                                break;
                                        case 5:
                                                o_ptr->name2 = EGO_RING_ALBINO;
                                                break;
                                        }
                                }
                                /* Broken */
                                o_ptr->ident |= (IDENT_BROKEN);

                                /* Cursed */
                                o_ptr->curse_flags |= (TRC_CURSED | TRC_HEAVY_CURSE);
                        }
                        break;
                }

                case TV_AMULET:
                {
                        /* Analyze */
                        switch (o_ptr->sval)
                        {
                                /* Amulet of wisdom/charisma */
                                case SV_AMULET_INTELLIGENCE:
                                case SV_AMULET_WISDOM:
                                case SV_AMULET_CHARISMA:
                                {
                                        o_ptr->pval = 1 + m_bonus(5, level);

                                        /* Cursed */
                                        if (power < 0)
                                        {
                                                /* Broken */
                                                o_ptr->ident |= (IDENT_BROKEN);

                                                /* Cursed */
                                                o_ptr->curse_flags |= (TRC_CURSED);

                                                /* Reverse bonuses */
                                                o_ptr->pval = 0 - o_ptr->pval;
                                        }

                                        break;
                                }

                                /* Amulet of brilliance */
                                case SV_AMULET_BRILLIANCE:
                                {
                                        o_ptr->pval = 1 + m_bonus(3, level);
                                        if (one_in_(4)) o_ptr->pval++;

                                        /* Cursed */
                                        if (power < 0)
                                        {
                                                /* Broken */
                                                o_ptr->ident |= (IDENT_BROKEN);

                                                /* Cursed */
                                                o_ptr->curse_flags |= (TRC_CURSED);

                                                /* Reverse bonuses */
                                                o_ptr->pval = 0 - o_ptr->pval;
                                        }

                                        break;
                                }

                                case SV_AMULET_NO_MAGIC: case SV_AMULET_NO_TELE:
                                {
                                        if (power < 0)
                                        {
                                                o_ptr->curse_flags |= (TRC_CURSED);
                                        }
                                        break;
                                }

                                case SV_AMULET_RESISTANCE:
                                {
                                        if (one_in_(5)) one_high_resistance(o_ptr);
                                        if (one_in_(5)) add_flag(o_ptr->art_flags, TR_RES_POIS);
                                }
                                break;

                                /* Amulet of searching */
                                case SV_AMULET_SEARCHING:
                                {
                                        o_ptr->pval = randint1(2) + m_bonus(4, level);

                                        /* Cursed */
                                        if (power < 0)
                                        {
                                                /* Broken */
                                                o_ptr->ident |= (IDENT_BROKEN);

                                                /* Cursed */
                                                o_ptr->curse_flags |= (TRC_CURSED);

                                                /* Reverse bonuses */
                                                o_ptr->pval = 0 - (o_ptr->pval);
                                        }

                                        break;
                                }

                                /* Amulet of the Magi -- never cursed */
                                case SV_AMULET_THE_MAGI:
                                {
                                        o_ptr->pval = randint1(5) + m_bonus(5, level);
                                        o_ptr->to_a = randint1(5) + m_bonus(5, level);

                                        /* gain one low ESP */
                                        add_esp_weak(o_ptr, FALSE);

                                        /* Mention the item */
                                        if (cheat_peek) object_mention(o_ptr);

                                        break;
                                }

                                /* Amulet of Doom -- always cursed */
                                case SV_AMULET_DOOM:
                                {
                                        /* Broken */
                                        o_ptr->ident |= (IDENT_BROKEN);

                                        /* Cursed */
                                        o_ptr->curse_flags |= (TRC_CURSED);

                                        /* Penalize */
                                        o_ptr->pval = 0 - (randint1(5) + m_bonus(5, level));
                                        o_ptr->to_a = 0 - (randint1(5) + m_bonus(5, level));
                                        if (power > 0) power = 0 - power;

                                        break;
                                }

                                case SV_AMULET_MAGIC_MASTERY:
                                {
                                        o_ptr->pval = 1 + m_bonus(4, level);

                                        /* Cursed */
                                        if (power < 0)
                                        {
                                                /* Broken */
                                                o_ptr->ident |= (IDENT_BROKEN);

                                                /* Cursed */
                                                o_ptr->curse_flags |= (TRC_CURSED);

                                                /* Reverse bonuses */
                                                o_ptr->pval = 0 - o_ptr->pval;
                                        }

                                        break;
                                }
                        }
                        if ((one_in_(150) && (power > 0) && !object_is_cursed(o_ptr) && (level > 79))
                            || (power > 2)) /* power > 2 is debug only */
                        {
                                o_ptr->pval = MIN(o_ptr->pval, 4);
                                /* Randart amulet */
                                create_artifact(o_ptr, FALSE);
                        }
                        else if ((power == 2) && one_in_(2))
                        {
                                while(!o_ptr->name2)
                                {
                                        object_kind *k_ptr = &k_info[o_ptr->k_idx];
                                        switch(randint1(21))
                                        {
                                        case 1: case 2:
                                                if (have_flag(k_ptr->flags, TR_SLOW_DIGEST)) break;
                                                o_ptr->name2 = EGO_AMU_SLOW_D;
                                                break;
                                        case 3: case 4:
                                                if (o_ptr->pval) break;
                                                o_ptr->name2 = EGO_AMU_INFRA;
                                                break;
                                        case 5: case 6:
                                                if (have_flag(k_ptr->flags, TR_SEE_INVIS)) break;
                                                o_ptr->name2 = EGO_AMU_SEE_INVIS;
                                                break;
                                        case 7: case 8:
                                                if (have_flag(k_ptr->flags, TR_HOLD_EXP)) break;
                                                o_ptr->name2 = EGO_AMU_HOLD_EXP;
                                                break;
                                        case 9:
                                                if (have_flag(k_ptr->flags, TR_LEVITATION)) break;
                                                o_ptr->name2 = EGO_AMU_LEVITATION;
                                                break;
                                        case 10: case 11: case 21:
                                                o_ptr->name2 = EGO_AMU_AC;
                                                break;
                                        case 12:
                                                if (have_flag(k_ptr->flags, TR_RES_FIRE)) break;
                                                if (m_bonus(10, level) > 8)
                                                        o_ptr->name2 = EGO_AMU_RES_FIRE_;
                                                else
                                                        o_ptr->name2 = EGO_AMU_RES_FIRE;
                                                break;
                                        case 13:
                                                if (have_flag(k_ptr->flags, TR_RES_COLD)) break;
                                                if (m_bonus(10, level) > 8)
                                                        o_ptr->name2 = EGO_AMU_RES_COLD_;
                                                else
                                                        o_ptr->name2 = EGO_AMU_RES_COLD;
                                                break;
                                        case 14:
                                                if (have_flag(k_ptr->flags, TR_RES_ELEC)) break;
                                                if (m_bonus(10, level) > 8)
                                                        o_ptr->name2 = EGO_AMU_RES_ELEC_;
                                                else
                                                        o_ptr->name2 = EGO_AMU_RES_ELEC;
                                                break;
                                        case 15:
                                                if (have_flag(k_ptr->flags, TR_RES_ACID)) break;
                                                if (m_bonus(10, level) > 8)
                                                        o_ptr->name2 = EGO_AMU_RES_ACID_;
                                                else
                                                        o_ptr->name2 = EGO_AMU_RES_ACID;
                                                break;
                                        case 16: case 17: case 18: case 19: case 20:
                                                switch (o_ptr->sval)
                                                {
                                                case SV_AMULET_TELEPORT:
                                                        if (m_bonus(10, level) > 9) o_ptr->name2 = EGO_AMU_D_DOOR;
                                                        else if (one_in_(2)) o_ptr->name2 = EGO_AMU_JUMP;
                                                        else o_ptr->name2 = EGO_AMU_TELEPORT;
                                                        break;
                                                case SV_AMULET_RESIST_ACID:
                                                        if ((m_bonus(10, level) > 6) && one_in_(2)) o_ptr->name2 = EGO_AMU_RES_ACID_;
                                                        break;
                                                case SV_AMULET_SEARCHING:
                                                        o_ptr->name2 = EGO_AMU_STEALTH;
                                                        break;
                                                case SV_AMULET_BRILLIANCE:
                                                        if (!one_in_(3)) break;
                                                        o_ptr->name2 = EGO_AMU_IDENT;
                                                        break;
                                                case SV_AMULET_CHARISMA:
                                                        if (!one_in_(3)) break;
                                                        o_ptr->name2 = EGO_AMU_CHARM;
                                                        break;
                                                case SV_AMULET_THE_MAGI:
                                                        if (one_in_(2)) break;
                                                        o_ptr->name2 = EGO_AMU_GREAT;
                                                        break;
                                                case SV_AMULET_RESISTANCE:
                                                        if (!one_in_(5)) break;
                                                        o_ptr->name2 = EGO_AMU_DEFENDER;
                                                        break;
                                                case SV_AMULET_TELEPATHY:
                                                        if (!one_in_(3)) break;
                                                        o_ptr->name2 = EGO_AMU_DETECTION;
                                                        break;
                                                }
                                        }
                                }
                                /* Uncurse it */
                                o_ptr->curse_flags = 0L;
                        }
                        else if ((power == -2) && one_in_(2))
                        {
                                if (o_ptr->to_h > 0) o_ptr->to_h = 0-o_ptr->to_h;
                                if (o_ptr->to_d > 0) o_ptr->to_d = 0-o_ptr->to_d;
                                if (o_ptr->to_a > 0) o_ptr->to_a = 0-o_ptr->to_a;
                                if (o_ptr->pval > 0) o_ptr->pval = 0-o_ptr->pval;
                                o_ptr->art_flags[0] = 0;
                                o_ptr->art_flags[1] = 0;
                                while(!o_ptr->name2)
                                {
                                        object_kind *k_ptr = &k_info[o_ptr->k_idx];
                                        switch(randint1(5))
                                        {
                                        case 1:
                                                if (have_flag(k_ptr->flags, TR_DRAIN_EXP)) break;
                                                o_ptr->name2 = EGO_AMU_DRAIN_EXP;
                                                break;
                                        case 2:
                                                o_ptr->name2 = EGO_AMU_FOOL;
                                                break;
                                        case 3:
                                                if (have_flag(k_ptr->flags, TR_AGGRAVATE)) break;
                                                o_ptr->name2 = EGO_AMU_AGGRAVATE;
                                                break;
                                        case 4:
                                                if (have_flag(k_ptr->flags, TR_TY_CURSE)) break;
                                                o_ptr->name2 = EGO_AMU_TY_CURSE;
                                                break;
                                        case 5:
                                                o_ptr->name2 = EGO_AMU_NAIVETY;
                                                break;
                                        }
                                }
                                /* Broken */
                                o_ptr->ident |= (IDENT_BROKEN);

                                /* Cursed */
                                o_ptr->curse_flags |= (TRC_CURSED | TRC_HEAVY_CURSE);
                        }
                        break;
                }
        }
}

/*!
 * @brief ¥â¥ó¥¹¥¿¡¼¤¬¿Í·Á¤Î¥Ù¡¼¥¹¤Ë¤Ç¤­¤ë¤«¤òÊÖ¤¹
 * @param r_idx ¥Á¥§¥Ã¥¯¤·¤¿¤¤¥â¥ó¥¹¥¿¡¼¼ï²¤ÎID
 * @return ¿Í·Á¤Ë¤Ç¤­¤ë¤Ê¤éTRUE¤òÊÖ¤¹
 */
static bool item_monster_okay(int r_idx)
{
        monster_race *r_ptr = &r_info[r_idx];

        /* No uniques */
        if (r_ptr->flags1 & RF1_UNIQUE) return (FALSE);
        if (r_ptr->flags7 & RF7_KAGE) return (FALSE);
        if (r_ptr->flagsr & RFR_RES_ALL) return (FALSE);
        if (r_ptr->flags7 & RF7_NAZGUL) return (FALSE);
        if (r_ptr->flags1 & RF1_FORCE_DEPTH) return (FALSE);
        if (r_ptr->flags7 & RF7_UNIQUE2) return (FALSE);

        /* Okay */
        return (TRUE);
}


/*!
 * @brief ¤½¤Î¾»¨Â¿¤Î¥ª¥Ö¥¸¥§¥¯¥È¤ËÀ¸À®¥é¥ó¥¯¤´¤È¤Î¶¯²½¤òÍ¿¤¨¤ë¥µ¥Ö¥ë¡¼¥Á¥ó
 * Apply magic to an item known to be "boring"
 * @param o_ptr ¶¯²½¤òÍ¿¤¨¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @param level À¸À®´ð½à³¬
 * @param power À¸À®¥é¥ó¥¯
 * @return ¤Ê¤·
 * @details
 * Hack -- note the special code for various items
 */
static void a_m_aux_4(object_type *o_ptr, int level, int power)
{
        object_kind *k_ptr = &k_info[o_ptr->k_idx];

        /* Unused */
        (void)level;

        /* Apply magic (good or bad) according to type */
        switch (o_ptr->tval)
        {
                case TV_WHISTLE:
                {
#if 0
                        /* Cursed */
                        if (power < 0)
                        {
                                /* Broken */
                                o_ptr->ident |= (IDENT_BROKEN);

                                /* Cursed */
                                o_ptr->curse_flags |= (TRC_CURSED);
                        }
#endif
                        break;
                }
                case TV_FLASK:
                {
                        o_ptr->xtra4 = o_ptr->pval;
                        o_ptr->pval = 0;
                        break;
                }
                case TV_LITE:
                {
                        /* Hack -- Torches -- random fuel */
                        if (o_ptr->sval == SV_LITE_TORCH)
                        {
                                if (o_ptr->pval > 0) o_ptr->xtra4 = randint1(o_ptr->pval);
                                o_ptr->pval = 0;
                        }

                        /* Hack -- Lanterns -- random fuel */
                        if (o_ptr->sval == SV_LITE_LANTERN)
                        {
                                if (o_ptr->pval > 0) o_ptr->xtra4 = randint1(o_ptr->pval);
                                o_ptr->pval = 0;
                        }

                        if (power > 2) /* power > 2 is debug only */
                        {
                                create_artifact(o_ptr, FALSE);
                        }
                        else if ((power == 2) || ((power == 1) && one_in_(3)))
                        {
                                while (!o_ptr->name2)
                                {
                                        while (1)
                                        {
                                                bool okay_flag = TRUE;

                                                o_ptr->name2 = get_random_ego(INVEN_LITE, TRUE);

                                                switch (o_ptr->name2)
                                                {
                                                case EGO_LITE_LONG:
                                                        if (o_ptr->sval == SV_LITE_FEANOR)
                                                                okay_flag = FALSE;
                                                }
                                                if (okay_flag)
                                                        break;
                                        }
                                }
                        }
                        else if (power == -2)
                        {
                                o_ptr->name2 = get_random_ego(INVEN_LITE, FALSE);

                                switch (o_ptr->name2)
                                {
                                case EGO_LITE_DARKNESS:
                                        o_ptr->xtra4 = 0;
                                        
                                        if (o_ptr->sval == SV_LITE_TORCH)
                                        {
                                                add_flag(o_ptr->art_flags, TR_LITE_M1);
                                        }
                                        else if (o_ptr->sval == SV_LITE_LANTERN)
                                        {
                                                add_flag(o_ptr->art_flags, TR_LITE_M2);
                                        }
                                        else if (o_ptr->sval == SV_LITE_FEANOR)
                                        {
                                                add_flag(o_ptr->art_flags, TR_LITE_M3);
                                        }
                                        break;
                                }
                        }

                        break;
                }

                case TV_WAND:
                case TV_STAFF:
                {
                        /* The wand or staff gets a number of initial charges equal
                         * to between 1/2 (+1) and the full object kind's pval. -LM-
                         */
                        o_ptr->pval = k_ptr->pval / 2 + randint1((k_ptr->pval + 1) / 2);
                        break;
                }

                case TV_ROD:
                {
                        /* Transfer the pval. -LM- */
                        o_ptr->pval = k_ptr->pval;
                        break;
                }

                case TV_CAPTURE:
                {
                        o_ptr->pval = 0;
                        object_aware(o_ptr);
                        object_known(o_ptr);
                        break;
                }

                case TV_FIGURINE:
                {
                        int i = 1;
                        int check;

                        monster_race *r_ptr;

                        /* Pick a random non-unique monster race */
                        while (1)
                        {
                                i = randint1(max_r_idx - 1);

                                if (!item_monster_okay(i)) continue;
                                if (i == MON_TSUCHINOKO) continue;

                                r_ptr = &r_info[i];

                                check = (dun_level < r_ptr->level) ? (r_ptr->level - dun_level) : 0;

                                /* Ignore dead monsters */
                                if (!r_ptr->rarity) continue;

                                /* Ignore uncommon monsters */
                                if (r_ptr->rarity > 100) continue;

                                /* Prefer less out-of-depth monsters */
                                if (randint0(check)) continue;

                                break;
                        }

                        o_ptr->pval = i;

                        /* Some figurines are cursed */
                        if (one_in_(6)) o_ptr->curse_flags |= TRC_CURSED;

                        if (cheat_peek)
                        {
#ifdef JP
                                msg_format("%s¤Î¿Í·Á, ¿¼¤µ +%d%s",
#else
                                msg_format("Figurine of %s, depth +%d%s",
#endif

                                                          r_name + r_ptr->name, check - 1,
                                                          !object_is_cursed(o_ptr) ? "" : " {cursed}");
                        }

                        break;
                }

                case TV_CORPSE:
                {
                        int i = 1;
                        int check;

                        u32b match = 0;

                        monster_race *r_ptr;

                        if (o_ptr->sval == SV_SKELETON)
                        {
                                match = RF9_DROP_SKELETON;
                        }
                        else if (o_ptr->sval == SV_CORPSE)
                        {
                                match = RF9_DROP_CORPSE;
                        }

                        /* Hack -- Remove the monster restriction */
                        get_mon_num_prep(item_monster_okay, NULL);

                        /* Pick a random non-unique monster race */
                        while (1)
                        {
                                i = get_mon_num(dun_level);

                                r_ptr = &r_info[i];

                                check = (dun_level < r_ptr->level) ? (r_ptr->level - dun_level) : 0;

                                /* Ignore dead monsters */
                                if (!r_ptr->rarity) continue;

                                /* Ignore corpseless monsters */
                                if (!(r_ptr->flags9 & match)) continue;

                                /* Prefer less out-of-depth monsters */
                                if (randint0(check)) continue;

                                break;
                        }

                        o_ptr->pval = i;

                        if (cheat_peek)
                        {
#ifdef JP
                                msg_format("%s¤Î»àÂÎ, ¿¼¤µ +%d",
#else
                                msg_format("Corpse of %s, depth +%d",
#endif

                                                          r_name + r_ptr->name, check - 1);
                        }

                        object_aware(o_ptr);
                        object_known(o_ptr);
                        break;
                }

                case TV_STATUE:
                {
                        int i = 1;

                        monster_race *r_ptr;

                        /* Pick a random monster race */
                        while (1)
                        {
                                i = randint1(max_r_idx - 1);

                                r_ptr = &r_info[i];

                                /* Ignore dead monsters */
                                if (!r_ptr->rarity) continue;

                                break;
                        }

                        o_ptr->pval = i;

                        if (cheat_peek)
                        {
#ifdef JP
                                msg_format("%s¤ÎÁü", r_name + r_ptr->name);
#else
                                msg_format("Statue of %s", r_name + r_ptr->name);
#endif

                        }
                        object_aware(o_ptr);
                        object_known(o_ptr);

                        break;
                }

                case TV_CHEST:
                {
                        byte obj_level = k_info[o_ptr->k_idx].level;

                        /* Hack -- skip ruined chests */
                        if (obj_level <= 0) break;

                        /* Hack -- pick a "difficulty" */
                        o_ptr->pval = randint1(obj_level);
                        if (o_ptr->sval == SV_CHEST_KANDUME) o_ptr->pval = 6;

                        o_ptr->xtra3 = dun_level + 5;

                        /* Never exceed "difficulty" of 55 to 59 */
                        if (o_ptr->pval > 55) o_ptr->pval = 55 + (byte)randint0(5);

                        break;
                }
        }
}

/*!
 * @brief À¸À®¤µ¤ì¤¿¥Ù¡¼¥¹¥¢¥¤¥Æ¥à¤ËËâˡŪ¤Ê¶¯²½¤òÍ¿¤¨¤ë¥á¥¤¥ó¥ë¡¼¥Á¥ó
 * Complete the "creation" of an object by applying "magic" to the item
 * @param o_ptr ¶¯²½¤òÍ¿¤¨¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @param lev À¸À®´ð½à³¬
 * @param mode À¸À®¥ª¥×¥·¥ç¥ó
 * @return ¤Ê¤·
 * @details
 * This includes not only rolling for random bonuses, but also putting the\n
 * finishing touches on ego-items and artifacts, giving charges to wands and\n
 * staffs, giving fuel to lites, and placing traps on chests.\n
 *\n
 * In particular, note that "Instant Artifacts", if "created" by an external\n
 * routine, must pass through this function to complete the actual creation.\n
 *\n
 * The base "chance" of the item being "good" increases with the "level"\n
 * parameter, which is usually derived from the dungeon level, being equal\n
 * to the level plus 10, up to a maximum of 75.  If "good" is true, then\n
 * the object is guaranteed to be "good".  If an object is "good", then\n
 * the chance that the object will be "great" (ego-item or artifact), also\n
 * increases with the "level", being equal to half the level, plus 5, up to\n
 * a maximum of 20.  If "great" is true, then the object is guaranteed to be\n
 * "great".  At dungeon level 65 and below, 15/100 objects are "great".\n
 *\n
 * If the object is not "good", there is a chance it will be "cursed", and\n
 * if it is "cursed", there is a chance it will be "broken".  These chances\n
 * are related to the "good" / "great" chances above.\n
 *\n
 * Otherwise "normal" rings and amulets will be "good" half the time and\n
 * "cursed" half the time, unless the ring/amulet is always good or cursed.\n
 *\n
 * If "okay" is true, and the object is going to be "great", then there is\n
 * a chance that an artifact will be created.  This is true even if both the\n
 * "good" and "great" arguments are false.  As a total hack, if "great" is\n
 * true, then the item gets 3 extra "attempts" to become an artifact.\n
 */
void apply_magic(object_type *o_ptr, int lev, u32b mode)
{
        int i, rolls, f1, f2, power;

        if (p_ptr->pseikaku == SEIKAKU_MUNCHKIN) lev += randint0(p_ptr->lev/2+10);

        /* Maximum "level" for various things */
        if (lev > MAX_DEPTH - 1) lev = MAX_DEPTH - 1;

        /* Base chance of being "good" */
        f1 = lev + 10;

        /* Maximal chance of being "good" */
        if (f1 > d_info[dungeon_type].obj_good) f1 = d_info[dungeon_type].obj_good;

        /* Base chance of being "great" */
        f2 = f1 * 2 / 3;

        /* Maximal chance of being "great" */
        if ((p_ptr->pseikaku != SEIKAKU_MUNCHKIN) && (f2 > d_info[dungeon_type].obj_great))
                f2 = d_info[dungeon_type].obj_great;

        if (p_ptr->muta3 & MUT3_GOOD_LUCK)
        {
                f1 += 5;
                f2 += 2;
        }
        else if(p_ptr->muta3 & MUT3_BAD_LUCK)
        {
                f1 -= 5;
                f2 -= 2;
        }

        /* Assume normal */
        power = 0;

        /* Roll for "good" */
        if ((mode & AM_GOOD) || magik(f1))
        {
                /* Assume "good" */
                power = 1;

                /* Roll for "great" */
                if ((mode & AM_GREAT) || magik(f2))
                {
                        power = 2;

                        /* Roll for "special" */
                        if (mode & AM_SPECIAL) power = 3;
                }
        }

        /* Roll for "cursed" */
        else if (magik(f1))
        {
                /* Assume "cursed" */
                power = -1;

                /* Roll for "broken" */
                if (magik(f2)) power = -2;
        }

        /* Apply curse */
        if (mode & AM_CURSED)
        {
                /* Assume 'cursed' */
                if (power > 0)
                {
                        power = 0 - power;
                }
                /* Everything else gets more badly cursed */
                else
                {
                        power--;
                }
        }

        /* Assume no rolls */
        rolls = 0;

        /* Get one roll if excellent */
        if (power >= 2) rolls = 1;

        /* Hack -- Get four rolls if forced great or special */
        if (mode & (AM_GREAT | AM_SPECIAL)) rolls = 4;

        /* Hack -- Get no rolls if not allowed */
        if ((mode & AM_NO_FIXED_ART) || o_ptr->name1) rolls = 0;

        /* Roll for artifacts if allowed */
        for (i = 0; i < rolls; i++)
        {
                /* Roll for an artifact */
                if (make_artifact(o_ptr)) break;
                if ((p_ptr->muta3 & MUT3_GOOD_LUCK) && one_in_(77))
                {
                        if (make_artifact(o_ptr)) break;
                }
        }


        /* Hack -- analyze artifacts */
        if (object_is_fixed_artifact(o_ptr))
        {
                artifact_type *a_ptr = &a_info[o_ptr->name1];

                /* Hack -- Mark the artifact as "created" */
                a_ptr->cur_num = 1;

                /* Hack -- Memorize location of artifact in saved floors */
                if (character_dungeon)
                        a_ptr->floor_id = p_ptr->floor_id;

                /* Extract the other fields */
                o_ptr->pval = a_ptr->pval;
                o_ptr->ac = a_ptr->ac;
                o_ptr->dd = a_ptr->dd;
                o_ptr->ds = a_ptr->ds;
                o_ptr->to_a = a_ptr->to_a;
                o_ptr->to_h = a_ptr->to_h;
                o_ptr->to_d = a_ptr->to_d;
                o_ptr->weight = a_ptr->weight;
                o_ptr->xtra2 = a_ptr->act_idx;

                if (o_ptr->name1 == ART_MILIM)
                {
                    if(p_ptr->pseikaku == SEIKAKU_SEXY)
                    {
                        o_ptr->pval = 3;
                    }
                }

                /* Hack -- extract the "broken" flag */
                if (!a_ptr->cost) o_ptr->ident |= (IDENT_BROKEN);

                /* Hack -- extract the "cursed" flag */
                if (a_ptr->gen_flags & TRG_CURSED) o_ptr->curse_flags |= (TRC_CURSED);
                if (a_ptr->gen_flags & TRG_HEAVY_CURSE) o_ptr->curse_flags |= (TRC_HEAVY_CURSE);
                if (a_ptr->gen_flags & TRG_PERMA_CURSE) o_ptr->curse_flags |= (TRC_PERMA_CURSE);
                if (a_ptr->gen_flags & (TRG_RANDOM_CURSE0)) o_ptr->curse_flags |= get_curse(0, o_ptr);
                if (a_ptr->gen_flags & (TRG_RANDOM_CURSE1)) o_ptr->curse_flags |= get_curse(1, o_ptr);
                if (a_ptr->gen_flags & (TRG_RANDOM_CURSE2)) o_ptr->curse_flags |= get_curse(2, o_ptr);


                /* Cheat -- peek at the item */
                if (cheat_peek) object_mention(o_ptr);

                /* Done */
                return;
        }


        /* Apply magic */
        switch (o_ptr->tval)
        {
                case TV_DIGGING:
                case TV_HAFTED:
                case TV_BOW:
                case TV_SHOT:
                case TV_ARROW:
                case TV_BOLT:
                {
                        if (power) a_m_aux_1(o_ptr, lev, power);
                        break;
                }

                case TV_POLEARM:
                {
                        if (power && !(o_ptr->sval == SV_DEATH_SCYTHE)) a_m_aux_1(o_ptr, lev, power);
                        break;
                }

                case TV_SWORD:
                {
                        if (power && !(o_ptr->sval == SV_DOKUBARI)) a_m_aux_1(o_ptr, lev, power);
                        break;
                }

                case TV_DRAG_ARMOR:
                case TV_HARD_ARMOR:
                case TV_SOFT_ARMOR:
                case TV_SHIELD:
                case TV_HELM:
                case TV_CROWN:
                case TV_CLOAK:
                case TV_GLOVES:
                case TV_BOOTS:
                {
                        /* Elven Cloak and Black Clothes ... */
                        if (((o_ptr->tval == TV_CLOAK) && (o_ptr->sval == SV_ELVEN_CLOAK)) ||
                            ((o_ptr->tval == TV_SOFT_ARMOR) && (o_ptr->sval == SV_KUROSHOUZOKU)))
                                o_ptr->pval = randint1(4);

#if 1
                        if (power ||
                             ((o_ptr->tval == TV_HELM) && (o_ptr->sval == SV_DRAGON_HELM)) ||
                             ((o_ptr->tval == TV_SHIELD) && (o_ptr->sval == SV_DRAGON_SHIELD)) ||
                             ((o_ptr->tval == TV_GLOVES) && (o_ptr->sval == SV_SET_OF_DRAGON_GLOVES)) ||
                             ((o_ptr->tval == TV_BOOTS) && (o_ptr->sval == SV_PAIR_OF_DRAGON_GREAVE)))
                                a_m_aux_2(o_ptr, lev, power);
#else
                        if (power) a_m_aux_2(o_ptr, lev, power);
#endif
                        break;
                }

                case TV_RING:
                case TV_AMULET:
                {
                        if (!power && (randint0(100) < 50)) power = -1;
                        a_m_aux_3(o_ptr, lev, power);
                        break;
                }

                default:
                {
                        a_m_aux_4(o_ptr, lev, power);
                        break;
                }
        }

        if ((o_ptr->tval == TV_SOFT_ARMOR) &&
            (o_ptr->sval == SV_ABUNAI_MIZUGI) &&
            (p_ptr->pseikaku == SEIKAKU_SEXY))
        {
                o_ptr->pval = 3;
                add_flag(o_ptr->art_flags, TR_STR);
                add_flag(o_ptr->art_flags, TR_INT);
                add_flag(o_ptr->art_flags, TR_WIS);
                add_flag(o_ptr->art_flags, TR_DEX);
                add_flag(o_ptr->art_flags, TR_CON);
                add_flag(o_ptr->art_flags, TR_CHR);
        }

        /* Hack -- analyze ego-items */
        if (object_is_ego(o_ptr))
        {
                ego_item_type *e_ptr = &e_info[o_ptr->name2];

                /* Hack -- acquire "broken" flag */
                if (!e_ptr->cost) o_ptr->ident |= (IDENT_BROKEN);

                /* Hack -- acquire "cursed" flag */
                if (e_ptr->gen_flags & TRG_CURSED) o_ptr->curse_flags |= (TRC_CURSED);
                if (e_ptr->gen_flags & TRG_HEAVY_CURSE) o_ptr->curse_flags |= (TRC_HEAVY_CURSE);
                if (e_ptr->gen_flags & TRG_PERMA_CURSE) o_ptr->curse_flags |= (TRC_PERMA_CURSE);
                if (e_ptr->gen_flags & (TRG_RANDOM_CURSE0)) o_ptr->curse_flags |= get_curse(0, o_ptr);
                if (e_ptr->gen_flags & (TRG_RANDOM_CURSE1)) o_ptr->curse_flags |= get_curse(1, o_ptr);
                if (e_ptr->gen_flags & (TRG_RANDOM_CURSE2)) o_ptr->curse_flags |= get_curse(2, o_ptr);

                if (e_ptr->gen_flags & (TRG_ONE_SUSTAIN)) one_sustain(o_ptr);
                if (e_ptr->gen_flags & (TRG_XTRA_POWER)) one_ability(o_ptr);
                if (e_ptr->gen_flags & (TRG_XTRA_H_RES)) one_high_resistance(o_ptr);
                if (e_ptr->gen_flags & (TRG_XTRA_E_RES)) one_ele_resistance(o_ptr);
                if (e_ptr->gen_flags & (TRG_XTRA_D_RES)) one_dragon_ele_resistance(o_ptr);
                if (e_ptr->gen_flags & (TRG_XTRA_L_RES)) one_lordly_high_resistance(o_ptr);
                if (e_ptr->gen_flags & (TRG_XTRA_RES)) one_resistance(o_ptr);
                if (e_ptr->gen_flags & (TRG_XTRA_DICE))
                {
                        do
                        {
                                o_ptr->dd++;
                        }
                        while (one_in_(o_ptr->dd));

                        if (o_ptr->dd > 9) o_ptr->dd = 9;
                }

                /* Hack -- apply activatin index if needed */
                if (e_ptr->act_idx) o_ptr->xtra2 = e_ptr->act_idx;

                /* Hack -- apply extra penalties if needed */
                if ((object_is_cursed(o_ptr) || object_is_broken(o_ptr)) && !(e_ptr->gen_flags & (TRG_POWERFUL)))
                {
                        /* Hack -- obtain bonuses */
                        if (e_ptr->max_to_h) o_ptr->to_h -= randint1(e_ptr->max_to_h);
                        if (e_ptr->max_to_d) o_ptr->to_d -= randint1(e_ptr->max_to_d);
                        if (e_ptr->max_to_a) o_ptr->to_a -= randint1(e_ptr->max_to_a);

                        /* Hack -- obtain pval */
                        if (e_ptr->max_pval) o_ptr->pval -= randint1(e_ptr->max_pval);
                }

                /* Hack -- apply extra bonuses if needed */
                else
                {
                        /* Hack -- obtain bonuses */
                        if (e_ptr->max_to_h)
                        {
                                if (e_ptr->max_to_h > 127)
                                        o_ptr->to_h -= randint1(256-e_ptr->max_to_h);
                                else o_ptr->to_h += randint1(e_ptr->max_to_h);
                        }
                        if (e_ptr->max_to_d)
                        {
                                if (e_ptr->max_to_d > 127)
                                        o_ptr->to_d -= randint1(256-e_ptr->max_to_d);
                                else o_ptr->to_d += randint1(e_ptr->max_to_d);
                        }
                        if (e_ptr->max_to_a)
                        {
                                if (e_ptr->max_to_a > 127)
                                        o_ptr->to_a -= randint1(256-e_ptr->max_to_a);
                                else o_ptr->to_a += randint1(e_ptr->max_to_a);
                        }
                        
                        /* Accuracy ego must have high to_h */
                        if(o_ptr->name2 == EGO_ACCURACY)
                        {
                                while(o_ptr->to_h < o_ptr->to_d + 10)
                                {
                                        o_ptr->to_h += 5;
                                        o_ptr->to_d -= 5;
                                }
                                o_ptr->to_h = MAX(o_ptr->to_h, 15);
                        }
                        
                        /* Accuracy ego must have high to_h */
                        if(o_ptr->name2 == EGO_VELOCITY)
                        {
                                while(o_ptr->to_d < o_ptr->to_h + 10)
                                {
                                        o_ptr->to_d += 5;
                                        o_ptr->to_h -= 5;
                                }
                                o_ptr->to_d = MAX(o_ptr->to_d, 15);
                        }
                        
                        /* Protection ego must have high to_a */
                        if((o_ptr->name2 == EGO_PROTECTION) || (o_ptr->name2 == EGO_S_PROTECTION) || (o_ptr->name2 == EGO_H_PROTECTION))
                        {
                                o_ptr->to_a = MAX(o_ptr->to_a, 15);
                        }

                        /* Hack -- obtain pval */
                        if (e_ptr->max_pval)
                        {
                                if ((o_ptr->name2 == EGO_HA) && (have_flag(o_ptr->art_flags, TR_BLOWS)))
                                {
                                        o_ptr->pval++;
                                        if ((lev > 60) && one_in_(3) && ((o_ptr->dd*(o_ptr->ds+1)) < 15)) o_ptr->pval++;
                                }
                                else if (o_ptr->name2 == EGO_DEMON)
                                {
                                        if(have_flag(o_ptr->art_flags, TR_BLOWS))
                                        {
                                                o_ptr->pval += randint1(2);
                                        }
                                        else
                                        {
                                                o_ptr->pval += randint1(e_ptr->max_pval);
                                        }
                                }
                                else if (o_ptr->name2 == EGO_ATTACKS)
                                {
                                        o_ptr->pval = randint1(e_ptr->max_pval*lev/100+1);
                                        if (o_ptr->pval > 3) o_ptr->pval = 3;
                                        if ((o_ptr->tval == TV_SWORD) && (o_ptr->sval == SV_HAYABUSA))
                                                o_ptr->pval += randint1(2);
                                }
                                else if (o_ptr->name2 == EGO_BAT)
                                {
                                        o_ptr->pval = randint1(e_ptr->max_pval);
                                        if (o_ptr->sval == SV_ELVEN_CLOAK) o_ptr->pval += randint1(2);
                                }
                                else if (o_ptr->name2 == EGO_A_DEMON || o_ptr->name2 == EGO_DRUID || o_ptr->name2 == EGO_OLOG)
                                {
                                        o_ptr->pval = randint1(e_ptr->max_pval);
                                }
                                else
                                {
                                        o_ptr->pval += randint1(e_ptr->max_pval);
                                }
                                
                                
                        }
                        if ((o_ptr->name2 == EGO_SPEED) && (lev < 50))
                        {
                                o_ptr->pval = randint1(o_ptr->pval);
                        }
                        if ((o_ptr->tval == TV_SWORD) && (o_ptr->sval == SV_HAYABUSA) && (o_ptr->pval > 2) && (o_ptr->name2 != EGO_ATTACKS))
                                o_ptr->pval = 2;
                }

                /* Cheat -- describe the item */
                if (cheat_peek) object_mention(o_ptr);
                
                /* Done */
                return;
        }

        /* Examine real objects */
        if (o_ptr->k_idx)
        {
                object_kind *k_ptr = &k_info[o_ptr->k_idx];

                /* Hack -- acquire "broken" flag */
                if (!k_info[o_ptr->k_idx].cost) o_ptr->ident |= (IDENT_BROKEN);

                /* Hack -- acquire "cursed" flag */
                if (k_ptr->gen_flags & (TRG_CURSED)) o_ptr->curse_flags |= (TRC_CURSED);
                if (k_ptr->gen_flags & (TRG_HEAVY_CURSE)) o_ptr->curse_flags |= TRC_HEAVY_CURSE;
                if (k_ptr->gen_flags & (TRG_PERMA_CURSE)) o_ptr->curse_flags |= TRC_PERMA_CURSE;
                if (k_ptr->gen_flags & (TRG_RANDOM_CURSE0)) o_ptr->curse_flags |= get_curse(0, o_ptr);
                if (k_ptr->gen_flags & (TRG_RANDOM_CURSE1)) o_ptr->curse_flags |= get_curse(1, o_ptr);
                if (k_ptr->gen_flags & (TRG_RANDOM_CURSE2)) o_ptr->curse_flags |= get_curse(2, o_ptr);
        }
}


/*!
 * @brief ¥Ù¡¼¥¹¥¢¥¤¥Æ¥à¤¬¾å¼Á¤È¤·¤Æ°·¤ï¤ì¤ë¤«¤É¤¦¤«¤òÊÖ¤¹¡£
 * Hack -- determine if a template is "good"
 * @param k_idx ȽÄꤷ¤¿¤¤¥Ù¡¼¥¹¥¢¥¤¥Æ¥à¤ÎID
 * @return ¥Ù¡¼¥¹¥¢¥¤¥Æ¥à¤¬¾å¼Á¤Ê¤é¤ÐTRUE¤òÊÖ¤¹¡£
 */
static bool kind_is_good(int k_idx)
{
        object_kind *k_ptr = &k_info[k_idx];

        /* Analyze the item type */
        switch (k_ptr->tval)
        {
                /* Armor -- Good unless damaged */
                case TV_HARD_ARMOR:
                case TV_SOFT_ARMOR:
                case TV_DRAG_ARMOR:
                case TV_SHIELD:
                case TV_CLOAK:
                case TV_BOOTS:
                case TV_GLOVES:
                case TV_HELM:
                case TV_CROWN:
                {
                        if (k_ptr->to_a < 0) return (FALSE);
                        return (TRUE);
                }

                /* Weapons -- Good unless damaged */
                case TV_BOW:
                case TV_SWORD:
                case TV_HAFTED:
                case TV_POLEARM:
                case TV_DIGGING:
                {
                        if (k_ptr->to_h < 0) return (FALSE);
                        if (k_ptr->to_d < 0) return (FALSE);
                        return (TRUE);
                }

                /* Ammo -- Arrows/Bolts are good */
                case TV_BOLT:
                case TV_ARROW:
                {
                        return (TRUE);
                }

                /* Books -- High level books are good (except Arcane books) */
                case TV_LIFE_BOOK:
                case TV_SORCERY_BOOK:
                case TV_NATURE_BOOK:
                case TV_CHAOS_BOOK:
                case TV_DEATH_BOOK:
                case TV_TRUMP_BOOK:
                case TV_CRAFT_BOOK:
                case TV_DAEMON_BOOK:
                case TV_CRUSADE_BOOK:
                case TV_MUSIC_BOOK:
                case TV_HISSATSU_BOOK:
                case TV_HEX_BOOK:
                {
                        if (k_ptr->sval >= SV_BOOK_MIN_GOOD) return (TRUE);
                        return (FALSE);
                }

                /* Rings -- Rings of Speed are good */
                case TV_RING:
                {
                        if (k_ptr->sval == SV_RING_SPEED) return (TRUE);
                        if (k_ptr->sval == SV_RING_LORDLY) return (TRUE);
                        return (FALSE);
                }

                /* Amulets -- Amulets of the Magi and Resistance are good */
                case TV_AMULET:
                {
                        if (k_ptr->sval == SV_AMULET_THE_MAGI) return (TRUE);
                        if (k_ptr->sval == SV_AMULET_RESISTANCE) return (TRUE);
                        return (FALSE);
                }
        }

        /* Assume not good */
        return (FALSE);
}

/*!
 * @brief À¸À®³¬¤Ë±þ¤¸¤¿¥Ù¡¼¥¹¥¢¥¤¥Æ¥à¤ÎÀ¸À®¤ò¹Ô¤¦¡£
 * Attempt to make an object (normal or good/great)
 * @param j_ptr À¸À®·ë²Ì¤ò¼ý¤á¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¹½Â¤ÂΤλ²¾È¥Ý¥¤¥ó¥¿
 * @param mode ¥ª¥×¥·¥ç¥ó¥Õ¥é¥°
 * @return À¸À®¤ËÀ®¸ù¤·¤¿¤éTRUE¤òÊÖ¤¹¡£
 * @details
 * This routine plays nasty games to generate the "special artifacts".\n
 * This routine uses "object_level" for the "generation level".\n
 * We assume that the given object has been "wiped".\n
 */
bool make_object(object_type *j_ptr, u32b mode)
{
        int prob, base;
        byte obj_level;


        /* Chance of "special object" */
        prob = ((mode & AM_GOOD) ? 10 : 1000);

        /* Base level for the object */
        base = ((mode & AM_GOOD) ? (object_level + 10) : object_level);


        /* Generate a special object, or a normal object */
        if (!one_in_(prob) || !make_artifact_special(j_ptr))
        {
                int k_idx;

                /* Good objects */
                if ((mode & AM_GOOD) && !get_obj_num_hook)
                {
                        /* Activate restriction (if already specified, use that) */
                        get_obj_num_hook = kind_is_good;
                }

                /* Restricted objects - prepare allocation table */
                if (get_obj_num_hook) get_obj_num_prep();

                /* Pick a random object */
                k_idx = get_obj_num(base);

                /* Restricted objects */
                if (get_obj_num_hook)
                {
                        /* Clear restriction */
                        get_obj_num_hook = NULL;

                        /* Reset allocation table to default */
                        get_obj_num_prep();
                }

                /* Handle failure */
                if (!k_idx) return (FALSE);

                /* Prepare the object */
                object_prep(j_ptr, k_idx);
        }

        /* Apply magic (allow artifacts) */
        apply_magic(j_ptr, object_level, mode);

        /* Hack -- generate multiple spikes/missiles */
        switch (j_ptr->tval)
        {
                case TV_SPIKE:
                case TV_SHOT:
                case TV_ARROW:
                case TV_BOLT:
                {
                        if (!j_ptr->name1)
                                j_ptr->number = (byte)damroll(6, 7);
                }
        }

        obj_level = k_info[j_ptr->k_idx].level;
        if (object_is_fixed_artifact(j_ptr)) obj_level = a_info[j_ptr->name1].level;

        /* Notice "okay" out-of-depth objects */
        if (!object_is_cursed(j_ptr) && !object_is_broken(j_ptr) &&
            (obj_level > dun_level))
        {
                /* Cheat -- peek at items */
                if (cheat_peek) object_mention(j_ptr);
        }

        /* Success */
        return (TRUE);
}


/*!
 * @brief ¥Õ¥í¥¢¤Î»ØÄê°ÌÃÖ¤ËÀ¸À®³¬¤Ë±þ¤¸¤¿¥Ù¡¼¥¹¥¢¥¤¥Æ¥à¤ÎÀ¸À®¤ò¹Ô¤¦¡£
 * Attempt to place an object (normal or good/great) at the given location.
 * @param y ÇÛÃÖ¤·¤¿¤¤¥Õ¥í¥¢¤ÎYºÂɸ
 * @param x ÇÛÃÖ¤·¤¿¤¤¥Õ¥í¥¢¤ÎXºÂɸ
 * @param mode ¥ª¥×¥·¥ç¥ó¥Õ¥é¥°
 * @return À¸À®¤ËÀ®¸ù¤·¤¿¤éTRUE¤òÊÖ¤¹¡£
 * @details
 * This routine plays nasty games to generate the "special artifacts".\n
 * This routine uses "object_level" for the "generation level".\n
 * This routine requires a clean floor grid destination.\n
 */
void place_object(int y, int x, u32b mode)
{
        s16b o_idx;

        /* Acquire grid */
        cave_type *c_ptr = &cave[y][x];

        object_type forge;
        object_type *q_ptr;


        /* Paranoia -- check bounds */
        if (!in_bounds(y, x)) return;

        /* Require floor space */
        if (!cave_drop_bold(y, x)) return;

        /* Avoid stacking on other objects */
        if (c_ptr->o_idx) return;


        /* Get local object */
        q_ptr = &forge;

        /* Wipe the object */
        object_wipe(q_ptr);

        /* Make an object (if possible) */
        if (!make_object(q_ptr, mode)) return;


        /* Make an object */
        o_idx = o_pop();

        /* Success */
        if (o_idx)
        {
                object_type *o_ptr;

                /* Acquire object */
                o_ptr = &o_list[o_idx];

                /* Structure Copy */
                object_copy(o_ptr, q_ptr);

                /* Location */
                o_ptr->iy = y;
                o_ptr->ix = x;

                /* Build a stack */
                o_ptr->next_o_idx = c_ptr->o_idx;

                /* Place the object */
                c_ptr->o_idx = o_idx;

                /* Notice */
                note_spot(y, x);

                /* Redraw */
                lite_spot(y, x);
        }
        else
        {
                /* Hack -- Preserve artifacts */
                if (object_is_fixed_artifact(q_ptr))
                {
                        a_info[q_ptr->name1].cur_num = 0;
                }
        }
}


/*!
 * @brief À¸À®³¬¤Ë±þ¤¸¤¿ºâÊõ¥ª¥Ö¥¸¥§¥¯¥È¤ÎÀ¸À®¤ò¹Ô¤¦¡£
 * Make a treasure object
 * @param j_ptr À¸À®·ë²Ì¤ò¼ý¤á¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¹½Â¤ÂΤλ²¾È¥Ý¥¤¥ó¥¿
 * @return À¸À®¤ËÀ®¸ù¤·¤¿¤éTRUE¤òÊÖ¤¹¡£
 * @details
 * The location must be a legal, clean, floor grid.
 */
bool make_gold(object_type *j_ptr)
{
        int i;

        s32b base;


        /* Hack -- Pick a Treasure variety */
        i = ((randint1(object_level + 2) + 2) / 2) - 1;

        /* Apply "extra" magic */
        if (one_in_(GREAT_OBJ))
        {
                i += randint1(object_level + 1);
        }

        /* Hack -- Creeping Coins only generate "themselves" */
        if (coin_type) i = coin_type;

        /* Do not create "illegal" Treasure Types */
        if (i >= MAX_GOLD) i = MAX_GOLD - 1;

        /* Prepare a gold object */
        object_prep(j_ptr, OBJ_GOLD_LIST + i);

        /* Hack -- Base coin cost */
        base = k_info[OBJ_GOLD_LIST+i].cost;

        /* Determine how much the treasure is "worth" */
        j_ptr->pval = (base + (8L * randint1(base)) + randint1(8));

        /* Success */
        return (TRUE);
}


/*!
 * @brief ¥Õ¥í¥¢¤Î»ØÄê°ÌÃÖ¤ËÀ¸À®³¬¤Ë±þ¤¸¤¿ºâÊõ¥ª¥Ö¥¸¥§¥¯¥È¤ÎÀ¸À®¤ò¹Ô¤¦¡£
 * Places a treasure (Gold or Gems) at given location
 * @param y ÇÛÃÖ¤·¤¿¤¤¥Õ¥í¥¢¤ÎYºÂɸ
 * @param x ÇÛÃÖ¤·¤¿¤¤¥Õ¥í¥¢¤ÎXºÂɸ
 * @return À¸À®¤ËÀ®¸ù¤·¤¿¤éTRUE¤òÊÖ¤¹¡£
 * @details
 * The location must be a legal, clean, floor grid.
 */
void place_gold(int y, int x)
{
        s16b o_idx;

        /* Acquire grid */
        cave_type *c_ptr = &cave[y][x];


        object_type forge;
        object_type *q_ptr;


        /* Paranoia -- check bounds */
        if (!in_bounds(y, x)) return;

        /* Require floor space */
        if (!cave_drop_bold(y, x)) return;

        /* Avoid stacking on other objects */
        if (c_ptr->o_idx) return;


        /* Get local object */
        q_ptr = &forge;

        /* Wipe the object */
        object_wipe(q_ptr);

        /* Make some gold */
        if (!make_gold(q_ptr)) return;


        /* Make an object */
        o_idx = o_pop();

        /* Success */
        if (o_idx)
        {
                object_type *o_ptr;

                /* Acquire object */
                o_ptr = &o_list[o_idx];

                /* Copy the object */
                object_copy(o_ptr, q_ptr);

                /* Save location */
                o_ptr->iy = y;
                o_ptr->ix = x;

                /* Build a stack */
                o_ptr->next_o_idx = c_ptr->o_idx;

                /* Place the object */
                c_ptr->o_idx = o_idx;

                /* Notice */
                note_spot(y, x);

                /* Redraw */
                lite_spot(y, x);
        }
}


/*!
 * @brief À¸À®ºÑ¤Î¥ª¥Ö¥¸¥§¥¯¥È¤ò¥Õ¥í¥¢¤Î½êÄê¤Î°ÌÃÖ¤ËÍî¤È¤¹¡£
 * Let an object fall to the ground at or near a location.
 * @param j_ptr Íî¤È¤·¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¹½Â¤ÂΤλ²¾È¥Ý¥¤¥ó¥¿
 * @param chance ¥É¥í¥Ã¥×¤ÎÀ®¸ùΨ(%)
 * @param y ÇÛÃÖ¤·¤¿¤¤¥Õ¥í¥¢¤ÎYºÂɸ
 * @param x ÇÛÃÖ¤·¤¿¤¤¥Õ¥í¥¢¤ÎXºÂɸ
 * @return À¸À®¤ËÀ®¸ù¤·¤¿¤éTRUE¤òÊÖ¤¹¡£
 * @details
 * The initial location is assumed to be "in_bounds()".\n
 *\n
 * This function takes a parameter "chance".  This is the percentage\n
 * chance that the item will "disappear" instead of drop.  If the object\n
 * has been thrown, then this is the chance of disappearance on contact.\n
 *\n
 * Hack -- this function uses "chance" to determine if it should produce\n
 * some form of "description" of the drop event (under the player).\n
 *\n
 * We check several locations to see if we can find a location at which\n
 * the object can combine, stack, or be placed.  Artifacts will try very\n
 * hard to be placed, including "teleporting" to a useful grid if needed.\n
 */
s16b drop_near(object_type *j_ptr, int chance, int y, int x)
{
        int i, k, d, s;

        int bs, bn;
        int by, bx;
        int dy, dx;
        int ty, tx = 0;

        s16b o_idx = 0;

        s16b this_o_idx, next_o_idx = 0;

        cave_type *c_ptr;

        char o_name[MAX_NLEN];

        bool flag = FALSE;
        bool done = FALSE;

#ifndef JP
        /* Extract plural */
        bool plural = (j_ptr->number != 1);
#endif

        /* Describe object */
        object_desc(o_name, j_ptr, (OD_OMIT_PREFIX | OD_NAME_ONLY));


        /* Handle normal "breakage" */
        if (!object_is_artifact(j_ptr) && (randint0(100) < chance))
        {
                /* Message */
#ifdef JP
                msg_format("%s¤Ï¾Ã¤¨¤¿¡£", o_name);
#else
                msg_format("The %s disappear%s.",
                           o_name, (plural ? "" : "s"));
#endif


                /* Debug */
#ifdef JP
                if (p_ptr->wizard) msg_print("(ÇË»)");
#else
                if (p_ptr->wizard) msg_print("(breakage)");
#endif


                /* Failure */
                return (0);
        }


        /* Score */
        bs = -1;

        /* Picker */
        bn = 0;

        /* Default */
        by = y;
        bx = x;

        /* Scan local grids */
        for (dy = -3; dy <= 3; dy++)
        {
                /* Scan local grids */
                for (dx = -3; dx <= 3; dx++)
                {
                        bool comb = FALSE;

                        /* Calculate actual distance */
                        d = (dy * dy) + (dx * dx);

                        /* Ignore distant grids */
                        if (d > 10) continue;

                        /* Location */
                        ty = y + dy;
                        tx = x + dx;

                        /* Skip illegal grids */
                        if (!in_bounds(ty, tx)) continue;

                        /* Require line of projection */
                        if (!projectable(y, x, ty, tx)) continue;

                        /* Obtain grid */
                        c_ptr = &cave[ty][tx];

                        /* Require floor space */
                        if (!cave_drop_bold(ty, tx)) continue;

                        /* No objects */
                        k = 0;

                        /* Scan objects in that grid */
                        for (this_o_idx = c_ptr->o_idx; this_o_idx; this_o_idx = next_o_idx)
                        {
                                object_type *o_ptr;

                                /* Acquire object */
                                o_ptr = &o_list[this_o_idx];

                                /* Acquire next object */
                                next_o_idx = o_ptr->next_o_idx;

                                /* Check for possible combination */
                                if (object_similar(o_ptr, j_ptr)) comb = TRUE;

                                /* Count objects */
                                k++;
                        }

                        /* Add new object */
                        if (!comb) k++;

                        /* Paranoia */
                        if (k > 99) continue;

                        /* Calculate score */
                        s = 1000 - (d + k * 5);

                        /* Skip bad values */
                        if (s < bs) continue;

                        /* New best value */
                        if (s > bs) bn = 0;

                        /* Apply the randomizer to equivalent values */
                        if ((++bn >= 2) && !one_in_(bn)) continue;

                        /* Keep score */
                        bs = s;

                        /* Track it */
                        by = ty;
                        bx = tx;

                        /* Okay */
                        flag = TRUE;
                }
        }


        /* Handle lack of space */
        if (!flag && !object_is_artifact(j_ptr))
        {
                /* Message */
#ifdef JP
                msg_format("%s¤Ï¾Ã¤¨¤¿¡£", o_name);
#else
                msg_format("The %s disappear%s.",
                           o_name, (plural ? "" : "s"));
#endif


                /* Debug */
#ifdef JP
                if (p_ptr->wizard) msg_print("(¾²¥¹¥Ú¡¼¥¹¤¬¤Ê¤¤)");
#else
                if (p_ptr->wizard) msg_print("(no floor space)");
#endif


                /* Failure */
                return (0);
        }


        /* Find a grid */
        for (i = 0; !flag && (i < 1000); i++)
        {
                /* Bounce around */
                ty = rand_spread(by, 1);
                tx = rand_spread(bx, 1);

                /* Verify location */
                if (!in_bounds(ty, tx)) continue;

                /* Bounce to that location */
                by = ty;
                bx = tx;

                /* Require floor space */
                if (!cave_drop_bold(by, bx)) continue;

                /* Okay */
                flag = TRUE;
        }


        if (!flag)
        {
                int candidates = 0, pick;

                for (ty = 1; ty < cur_hgt - 1; ty++)
                {
                        for (tx = 1; tx < cur_wid - 1; tx++)
                        {
                                /* A valid space found */
                                if (cave_drop_bold(ty, tx)) candidates++;
                        }
                }

                /* No valid place! */
                if (!candidates)
                {
                        /* Message */
#ifdef JP
                        msg_format("%s¤Ï¾Ã¤¨¤¿¡£", o_name);
#else
                        msg_format("The %s disappear%s.", o_name, (plural ? "" : "s"));
#endif

                        /* Debug */
#ifdef JP
                        if (p_ptr->wizard) msg_print("(¾²¥¹¥Ú¡¼¥¹¤¬¤Ê¤¤)");
#else
                        if (p_ptr->wizard) msg_print("(no floor space)");
#endif

                        /* Mega-Hack -- preserve artifacts */
                        if (preserve_mode)
                        {
                                /* Hack -- Preserve unknown artifacts */
                                if (object_is_fixed_artifact(j_ptr) && !object_is_known(j_ptr))
                                {
                                        /* Mega-Hack -- Preserve the artifact */
                                        a_info[j_ptr->name1].cur_num = 0;
                                }
                        }

                        /* Failure */
                        return 0;
                }

                /* Choose a random one */
                pick = randint1(candidates);

                for (ty = 1; ty < cur_hgt - 1; ty++)
                {
                        for (tx = 1; tx < cur_wid - 1; tx++)
                        {
                                if (cave_drop_bold(ty, tx))
                                {
                                        pick--;

                                        /* Is this a picked one? */
                                        if (!pick) break;
                                }
                        }

                        if (!pick) break;
                }

                by = ty;
                bx = tx;
        }


        /* Grid */
        c_ptr = &cave[by][bx];

        /* Scan objects in that grid for combination */
        for (this_o_idx = c_ptr->o_idx; this_o_idx; this_o_idx = next_o_idx)
        {
                object_type *o_ptr;

                /* Acquire object */
                o_ptr = &o_list[this_o_idx];

                /* Acquire next object */
                next_o_idx = o_ptr->next_o_idx;

                /* Check for combination */
                if (object_similar(o_ptr, j_ptr))
                {
                        /* Combine the items */
                        object_absorb(o_ptr, j_ptr);

                        /* Success */
                        done = TRUE;

                        /* Done */
                        break;
                }
        }

        /* Get new object */
        if (!done) o_idx = o_pop();

        /* Failure */
        if (!done && !o_idx)
        {
                /* Message */
#ifdef JP
                msg_format("%s¤Ï¾Ã¤¨¤¿¡£", o_name);
#else
                msg_format("The %s disappear%s.",
                           o_name, (plural ? "" : "s"));
#endif


                /* Debug */
#ifdef JP
                if (p_ptr->wizard) msg_print("(¥¢¥¤¥Æ¥à¤¬Â¿²á¤®¤ë)");
#else
                if (p_ptr->wizard) msg_print("(too many objects)");
#endif


                /* Hack -- Preserve artifacts */
                if (object_is_fixed_artifact(j_ptr))
                {
                        a_info[j_ptr->name1].cur_num = 0;
                }

                /* Failure */
                return (0);
        }

        /* Stack */
        if (!done)
        {
                /* Structure copy */
                object_copy(&o_list[o_idx], j_ptr);

                /* Access new object */
                j_ptr = &o_list[o_idx];

                /* Locate */
                j_ptr->iy = by;
                j_ptr->ix = bx;

                /* No monster */
                j_ptr->held_m_idx = 0;

                /* Build a stack */
                j_ptr->next_o_idx = c_ptr->o_idx;

                /* Place the object */
                c_ptr->o_idx = o_idx;

                /* Success */
                done = TRUE;
        }

        /* Note the spot */
        note_spot(by, bx);

        /* Draw the spot */
        lite_spot(by, bx);

        /* Sound */
        sound(SOUND_DROP);

        /* Mega-Hack -- no message if "dropped" by player */
        /* Message when an object falls under the player */
        if (chance && player_bold(by, bx))
        {
#ifdef JP
                msg_print("²¿¤«¤¬Â­²¼¤Ëž¤¬¤Ã¤Æ¤­¤¿¡£");
#else
                msg_print("You feel something roll beneath your feet.");
#endif

        }

        /* XXX XXX XXX */

        /* Result */
        return (o_idx);
}


/*!
 * @brief ³ÍÆÀ¥É¥í¥Ã¥×¤ò¹Ô¤¦¡£
 * Scatter some "great" objects near the player
 * @param y1 ÇÛÃÖ¤·¤¿¤¤¥Õ¥í¥¢¤ÎYºÂɸ
 * @param x1 ÇÛÃÖ¤·¤¿¤¤¥Õ¥í¥¢¤ÎXºÂɸ
 * @param num ³ÍÆÀ¤Î½èÍý²ó¿ô
 * @param great TRUE¤Ê¤é¤Ðɬ¤º¹âµéÉʰʾå¤òÍî¤È¤¹
 * @param special TRUE¤Ê¤é¤Ðɬ¤ºÆÃÊÌÉʤòÍî¤È¤¹
 * @param known TRUE¤Ê¤é¤Ð¥ª¥Ö¥¸¥§¥¯¥È¤¬É¬¤º¡ö´ÕÄê¡öºÑ¤Ë¤Ê¤ë
 * @return ¤Ê¤·
 */
void acquirement(int y1, int x1, int num, bool great, bool special, bool known)
{
        object_type *i_ptr;
        object_type object_type_body;
        u32b mode = AM_GOOD | (great || special ? AM_GREAT : 0L) | (special ? AM_SPECIAL : 0L) ;

        /* Acquirement */
        while (num--)
        {
                /* Get local object */
                i_ptr = &object_type_body;

                /* Wipe the object */
                object_wipe(i_ptr);

                /* Make a good (or great) object (if possible) */
                if (!make_object(i_ptr, mode)) continue;

                if (known)
                {
                        object_aware(i_ptr);
                        object_known(i_ptr);
                }

                /* Drop the object */
                (void)drop_near(i_ptr, -1, y1, x1);
        }
}

/*
 * Scatter some "amusing" objects near the player
 */

#define AMS_NOTHING   0x00 /* No restriction */
#define AMS_NO_UNIQUE 0x01 /* Don't make the amusing object of uniques */
#define AMS_FIXED_ART 0x02 /* Make a fixed artifact based on the amusing object */
#define AMS_MULTIPLE  0x04 /* Drop 1-3 objects for one type */
#define AMS_PILE      0x08 /* Drop 1-99 pile objects for one type */

typedef struct
{
        int tval;
        int sval;
        int prob;
        byte flag;
} amuse_type;

amuse_type amuse_info[] =
{
        { TV_BOTTLE, SV_ANY, 5, AMS_NOTHING },
        { TV_JUNK, SV_ANY, 3, AMS_MULTIPLE },
        { TV_SPIKE, SV_ANY, 10, AMS_PILE },
        { TV_STATUE, SV_ANY, 15, AMS_NOTHING },
        { TV_CORPSE, SV_ANY, 15, AMS_NO_UNIQUE },
        { TV_SKELETON, SV_ANY, 10, AMS_NO_UNIQUE },
        { TV_FIGURINE, SV_ANY, 10, AMS_NO_UNIQUE },
        { TV_PARCHMENT, SV_ANY, 1, AMS_NOTHING },
        { TV_POLEARM, SV_TSURIZAO, 3, AMS_NOTHING }, //Fishing Pole of Taikobo
        { TV_SWORD, SV_BROKEN_DAGGER, 3, AMS_FIXED_ART }, //Broken Dagger of Magician
        { TV_SWORD, SV_BROKEN_DAGGER, 10, AMS_NOTHING },
        { TV_SWORD, SV_BROKEN_SWORD, 5, AMS_NOTHING },
        { TV_SCROLL, SV_SCROLL_AMUSEMENT, 10, AMS_NOTHING },

        { 0, 0, 0 }
};

/*!
 * @brief ïÆÀ¥É¥í¥Ã¥×¤ò¹Ô¤¦¡£
 * @param y1 ÇÛÃÖ¤·¤¿¤¤¥Õ¥í¥¢¤ÎYºÂɸ
 * @param x1 ÇÛÃÖ¤·¤¿¤¤¥Õ¥í¥¢¤ÎXºÂɸ
 * @param num ïÆÀ¤Î½èÍý²ó¿ô
 * @param known TRUE¤Ê¤é¤Ð¥ª¥Ö¥¸¥§¥¯¥È¤¬É¬¤º¡ö´ÕÄê¡öºÑ¤Ë¤Ê¤ë
 * @return ¤Ê¤·
 */
void amusement(int y1, int x1, int num, bool known)
{
        object_type *i_ptr;
        object_type object_type_body;
        int n, t = 0;

        for (n = 0; amuse_info[n].tval != 0; n++)
        {
                t += amuse_info[n].prob;
        }

        /* Acquirement */
        while (num)
        {
                int i, k_idx, a_idx = 0;
                int r = randint0(t);
                bool insta_art, fixed_art;

                for (i = 0; ; i++)
                {
                        r -= amuse_info[i].prob;
                        if (r <= 0) break;
                }

                /* Get local object */
                i_ptr = &object_type_body;

                /* Wipe the object */
                object_wipe(i_ptr);

                /* Wipe the object */
                k_idx = lookup_kind(amuse_info[i].tval, amuse_info[i].sval);

                /* Paranoia - reroll if nothing */
                if (!k_idx) continue;

                /* Search an artifact index if need */
                insta_art = (k_info[k_idx].gen_flags & TRG_INSTA_ART);
                fixed_art = (amuse_info[i].flag & AMS_FIXED_ART);

                if (insta_art || fixed_art)
                {
                        for (a_idx = 1; a_idx < max_a_idx; a_idx++)
                        {
                                if (insta_art && !(a_info[a_idx].gen_flags & TRG_INSTA_ART)) continue;
                                if (a_info[a_idx].tval != k_info[k_idx].tval) continue;
                                if (a_info[a_idx].sval != k_info[k_idx].sval) continue;
                                if (a_info[a_idx].cur_num > 0) continue;
                                break;
                        }

                        if (a_idx >= max_a_idx) continue;
                }

                /* Make an object (if possible) */
                object_prep(i_ptr, k_idx);
                if (a_idx) i_ptr->name1 = a_idx;
                apply_magic(i_ptr, 1, AM_NO_FIXED_ART);

                if (amuse_info[i].flag & AMS_NO_UNIQUE)
                {
                        if (r_info[i_ptr->pval].flags1 & RF1_UNIQUE) continue;
                }

                if (amuse_info[i].flag & AMS_MULTIPLE) i_ptr->number = randint1(3);
                if (amuse_info[i].flag & AMS_PILE) i_ptr->number = randint1(99);

                if (known)
                {
                        object_aware(i_ptr);
                        object_known(i_ptr);
                }

                /* Paranoia - reroll if nothing */
                if (!(i_ptr->k_idx)) continue;

                /* Drop the object */
                (void)drop_near(i_ptr, -1, y1, x1);

                num--;
        }
}


#define MAX_NORMAL_TRAPS 18

/* See init_feat_variables() in init2.c */
static s16b normal_traps[MAX_NORMAL_TRAPS];

/*!
 * @brief ¥¿¥°¤Ë½¾¤Ã¤Æ¡¢´ðËܥȥé¥Ã¥×¥Æ¡¼¥Ö¥ë¤ò½é´ü²½¤¹¤ë / Initialize arrays for normal traps
 * @return ¤Ê¤·
 */
void init_normal_traps(void)
{
        int cur_trap = 0;

        normal_traps[cur_trap++] = f_tag_to_index_in_init("TRAP_TRAPDOOR");
        normal_traps[cur_trap++] = f_tag_to_index_in_init("TRAP_PIT");
        normal_traps[cur_trap++] = f_tag_to_index_in_init("TRAP_SPIKED_PIT");
        normal_traps[cur_trap++] = f_tag_to_index_in_init("TRAP_POISON_PIT");
        normal_traps[cur_trap++] = f_tag_to_index_in_init("TRAP_TY_CURSE");
        normal_traps[cur_trap++] = f_tag_to_index_in_init("TRAP_TELEPORT");
        normal_traps[cur_trap++] = f_tag_to_index_in_init("TRAP_FIRE");
        normal_traps[cur_trap++] = f_tag_to_index_in_init("TRAP_ACID");
        normal_traps[cur_trap++] = f_tag_to_index_in_init("TRAP_SLOW");
        normal_traps[cur_trap++] = f_tag_to_index_in_init("TRAP_LOSE_STR");
        normal_traps[cur_trap++] = f_tag_to_index_in_init("TRAP_LOSE_DEX");
        normal_traps[cur_trap++] = f_tag_to_index_in_init("TRAP_LOSE_CON");
        normal_traps[cur_trap++] = f_tag_to_index_in_init("TRAP_BLIND");
        normal_traps[cur_trap++] = f_tag_to_index_in_init("TRAP_CONFUSE");
        normal_traps[cur_trap++] = f_tag_to_index_in_init("TRAP_POISON");
        normal_traps[cur_trap++] = f_tag_to_index_in_init("TRAP_SLEEP");
        normal_traps[cur_trap++] = f_tag_to_index_in_init("TRAP_TRAPS");
        normal_traps[cur_trap++] = f_tag_to_index_in_init("TRAP_ALARM");
}

/*!
 * @brief ´ðËܥȥé¥Ã¥×¤ò¥é¥ó¥À¥à¤ËÁªÂò¤¹¤ë /
 * Get random trap
 * @return ÁªÂò¤·¤¿¥È¥é¥Ã¥×¤ÎID
 * @details
 * XXX XXX XXX This routine should be redone to reflect trap "level".\n
 * That is, it does not make sense to have spiked pits at 50 feet.\n
 * Actually, it is not this routine, but the "trap instantiation"\n
 * code, which should also check for "trap doors" on quest levels.\n
 */
s16b choose_random_trap(void)
{
        s16b feat;

        /* Pick a trap */
        while (1)
        {
                /* Hack -- pick a trap */
                feat = normal_traps[randint0(MAX_NORMAL_TRAPS)];

                /* Accept non-trapdoors */
                if (!have_flag(f_info[feat].flags, FF_MORE)) break;

                /* Hack -- no trap doors on special levels */
                if (p_ptr->inside_arena || quest_number(dun_level)) continue;

                /* Hack -- no trap doors on the deepest level */
                if (dun_level >= d_info[dungeon_type].maxdepth) continue;

                break;
        }

        return feat;
}

/*!
 * @brief ¥Þ¥¹¤Ë¸ºß¤¹¤ë¥È¥é¥Ã¥×¤òÈëÆ¿¤¹¤ë /
 * Disclose an invisible trap
 * @param y ÈëÆ¿¤·¤¿¤¤¥Þ¥¹¤ÎYºÂɸ
 * @param x ÈëÆ¿¤·¤¿¤¤¥Þ¥¹¤ÎXºÂɸ
 * @return ¤Ê¤·
 */
void disclose_grid(int y, int x)
{
        cave_type *c_ptr = &cave[y][x];

        if (cave_have_flag_grid(c_ptr, FF_SECRET))
        {
                /* No longer hidden */
                cave_alter_feat(y, x, FF_SECRET);
        }
        else if (c_ptr->mimic)
        {
                /* No longer hidden */
                c_ptr->mimic = 0;

                /* Notice */
                note_spot(y, x);

                /* Redraw */
                lite_spot(y, x);
        }
}

/*!
 * @brief ¥Þ¥¹¤ò¥È¥é¥Ã¥×¤òÇÛÃÖ¤¹¤ë /
 * The location must be a legal, naked, floor grid.
 * @param y ÇÛÃÖ¤·¤¿¤¤¥Þ¥¹¤ÎYºÂɸ
 * @param x ÇÛÃÖ¤·¤¿¤¤¥Þ¥¹¤ÎXºÂɸ
 * @return
 * Note that all traps start out as "invisible" and "untyped", and then\n
 * when they are "discovered" (by detecting them or setting them off),\n
 * the trap is "instantiated" as a visible, "typed", trap.\n
 */
void place_trap(int y, int x)
{
        cave_type *c_ptr = &cave[y][x];

        /* Paranoia -- verify location */
        if (!in_bounds(y, x)) return;

        /* Require empty, clean, floor grid */
        if (!cave_clean_bold(y, x)) return;

        /* Place an invisible trap */
        c_ptr->mimic = c_ptr->feat;
        c_ptr->feat = choose_random_trap();
}

/*!
 * @brief ËâÆ»¶ñ¤Î»ÈÍѲó¿ô¤Î»ÄÎ̤ò¼¨¤¹¥á¥Ã¥»¡¼¥¸¤òɽ¼¨¤¹¤ë /
 * Describe the charges on an item in the inventory.
 * @param item »ÄÎ̤òɽ¼¨¤·¤¿¤¤¥×¥ì¥¤¥ä¡¼¤Î¥¢¥¤¥Æ¥à½ê»ý¥¹¥í¥Ã¥È
 * @return ¤Ê¤·
 */
void inven_item_charges(int item)
{
        object_type *o_ptr = &inventory[item];

        /* Require staff/wand */
        if ((o_ptr->tval != TV_STAFF) && (o_ptr->tval != TV_WAND)) return;

        /* Require known item */
        if (!object_is_known(o_ptr)) return;

#ifdef JP
        if (o_ptr->pval <= 0)
        {
                msg_print("¤â¤¦ËâÎϤ¬»Ä¤Ã¤Æ¤¤¤Ê¤¤¡£");
        }
        else
        {
                msg_format("¤¢¤È %d ²óʬ¤ÎËâÎϤ¬»Ä¤Ã¤Æ¤¤¤ë¡£", o_ptr->pval);
        }
#else
        /* Multiple charges */
        if (o_ptr->pval != 1)
        {
                /* Print a message */
                msg_format("You have %d charges remaining.", o_ptr->pval);
        }

        /* Single charge */
        else
        {
                /* Print a message */
                msg_format("You have %d charge remaining.", o_ptr->pval);
        }
#endif

}

/*!
 * @brief ¥¢¥¤¥Æ¥à¤Î»Ä¤ê½ê»ý¿ô¥á¥Ã¥»¡¼¥¸¤òɽ¼¨¤¹¤ë /
 * Describe an item in the inventory.
 * @param item »ÄÎ̤òɽ¼¨¤·¤¿¤¤¥×¥ì¥¤¥ä¡¼¤Î¥¢¥¤¥Æ¥à½ê»ý¥¹¥í¥Ã¥È
 * @return ¤Ê¤·
 */
void inven_item_describe(int item)
{
        object_type *o_ptr = &inventory[item];
        char        o_name[MAX_NLEN];

        /* Get a description */
        object_desc(o_name, o_ptr, 0);

        /* Print a message */
#ifdef JP
        /* "no more" ¤Î¾ì¹ç¤Ï¤³¤Á¤é¤Çɽ¼¨¤¹¤ë */
        if (o_ptr->number <= 0)
        {
                /*FIRST*//*¤³¤³¤Ï¤â¤¦Ä̤é¤Ê¤¤¤«¤â */
                msg_format("¤â¤¦%s¤ò»ý¤Ã¤Æ¤¤¤Ê¤¤¡£", o_name);
        }
        else
        {
                /* ¥¢¥¤¥Æ¥à̾¤ò±ÑÆüÀÚ¤êÂؤ¨µ¡Ç½Âбþ */
                msg_format("¤Þ¤À %s¤ò»ý¤Ã¤Æ¤¤¤ë¡£", o_name);
        }
#else
        msg_format("You have %s.", o_name);
#endif

}

/*!
 * @brief ¥¢¥¤¥Æ¥à¤Î»Ä¤ê½ê»ý¿ô¥á¥Ã¥»¡¼¥¸¤òɽ¼¨¤¹¤ë /
 * Increase the "number" of an item in the inventory
 * @param item ½ê»ý¿ô¤òÁý¤ä¤·¤¿¤¤¥×¥ì¥¤¥ä¡¼¤Î¥¢¥¤¥Æ¥à½ê»ý¥¹¥í¥Ã¥È
 * @param num Áý¤ä¤·¤¿¤¤ÎÌ
 * @return ¤Ê¤·
 */
void inven_item_increase(int item, int num)
{
        object_type *o_ptr = &inventory[item];

        /* Apply */
        num += o_ptr->number;

        /* Bounds check */
        if (num > 255) num = 255;
        else if (num < 0) num = 0;

        /* Un-apply */
        num -= o_ptr->number;

        /* Change the number and weight */
        if (num)
        {
                /* Add the number */
                o_ptr->number += num;

                /* Add the weight */
                p_ptr->total_weight += (num * o_ptr->weight);

                /* Recalculate bonuses */
                p_ptr->update |= (PU_BONUS);

                /* Recalculate mana XXX */
                p_ptr->update |= (PU_MANA);

                /* Combine the pack */
                p_ptr->notice |= (PN_COMBINE);

                /* Window stuff */
                p_ptr->window |= (PW_INVEN | PW_EQUIP);

                /* Hack -- Clear temporary elemental brands if player takes off weapons */
                if (!o_ptr->number && p_ptr->ele_attack)
                {
                        if ((item == INVEN_RARM) || (item == INVEN_LARM))
                        {
                                if (!buki_motteruka(INVEN_RARM + INVEN_LARM - item))
                                {
                                        /* Clear all temporary elemental brands */
                                        set_ele_attack(0, 0);
                                }
                        }
                }
        }
}

/*!
 * @brief ½ê»ý¥¢¥¤¥Æ¥à¥¹¥í¥Ã¥È¤«¤é½ê»ý¿ô¤Î¤Ê¤¯¤Ê¤Ã¤¿¥¢¥¤¥Æ¥à¤ò¾Ãµî¤¹¤ë /
 * Erase an inventory slot if it has no more items
 * @param item ¾Ãµî¤·¤¿¤¤¥×¥ì¥¤¥ä¡¼¤Î¥¢¥¤¥Æ¥à½ê»ý¥¹¥í¥Ã¥È
 * @return ¤Ê¤·
 */
void inven_item_optimize(int item)
{
        object_type *o_ptr = &inventory[item];

        /* Only optimize real items */
        if (!o_ptr->k_idx) return;

        /* Only optimize empty items */
        if (o_ptr->number) return;

        /* The item is in the pack */
        if (item < INVEN_RARM)
        {
                int i;

                /* One less item */
                inven_cnt--;

                /* Slide everything down */
                for (i = item; i < INVEN_PACK; i++)
                {
                        /* Structure copy */
                        inventory[i] = inventory[i+1];
                }

                /* Erase the "final" slot */
                object_wipe(&inventory[i]);

                /* Window stuff */
                p_ptr->window |= (PW_INVEN);
        }

        /* The item is being wielded */
        else
        {
                /* One less item */
                equip_cnt--;

                /* Erase the empty slot */
                object_wipe(&inventory[item]);

                /* Recalculate bonuses */
                p_ptr->update |= (PU_BONUS);

                /* Recalculate torch */
                p_ptr->update |= (PU_TORCH);

                /* Recalculate mana XXX */
                p_ptr->update |= (PU_MANA);

                /* Window stuff */
                p_ptr->window |= (PW_EQUIP);
        }

        /* Window stuff */
        p_ptr->window |= (PW_SPELL);
}

/*!
 * @brief ¾²¾å¤ÎËâÆ»¶ñ¤Î»Ä¤ê»ÄÎÌ¥á¥Ã¥»¡¼¥¸¤òɽ¼¨¤¹¤ë /
 * Describe the charges on an item on the floor.
 * @param item ¥á¥Ã¥»¡¼¥¸¤ÎÂоݤˤ·¤¿¤¤¥¢¥¤¥Æ¥à½ê»ý¥¹¥í¥Ã¥È
 * @return ¤Ê¤·
 */
void floor_item_charges(int item)
{
        object_type *o_ptr = &o_list[item];

        /* Require staff/wand */
        if ((o_ptr->tval != TV_STAFF) && (o_ptr->tval != TV_WAND)) return;

        /* Require known item */
        if (!object_is_known(o_ptr)) return;

#ifdef JP
        if (o_ptr->pval <= 0)
        {
                msg_print("¤³¤Î¾²¾å¤Î¥¢¥¤¥Æ¥à¤Ï¡¢¤â¤¦ËâÎϤ¬»Ä¤Ã¤Æ¤¤¤Ê¤¤¡£");
        }
        else
        {
                msg_format("¤³¤Î¾²¾å¤Î¥¢¥¤¥Æ¥à¤Ï¡¢¤¢¤È %d ²óʬ¤ÎËâÎϤ¬»Ä¤Ã¤Æ¤¤¤ë¡£", o_ptr->pval);
        }
#else
        /* Multiple charges */
        if (o_ptr->pval != 1)
        {
                /* Print a message */
                msg_format("There are %d charges remaining.", o_ptr->pval);
        }

        /* Single charge */
        else
        {
                /* Print a message */
                msg_format("There is %d charge remaining.", o_ptr->pval);
        }
#endif

}

/*!
 * @brief ¾²¾å¤Î¥¢¥¤¥Æ¥à¤Î»Ä¤ê¿ô¥á¥Ã¥»¡¼¥¸¤òɽ¼¨¤¹¤ë /
 * Describe the charges on an item on the floor.
 * @param item ¥á¥Ã¥»¡¼¥¸¤ÎÂоݤˤ·¤¿¤¤¥¢¥¤¥Æ¥à½ê»ý¥¹¥í¥Ã¥È
 * @return ¤Ê¤·
 */
void floor_item_describe(int item)
{
        object_type *o_ptr = &o_list[item];
        char        o_name[MAX_NLEN];

        /* Get a description */
        object_desc(o_name, o_ptr, 0);

        /* Print a message */
#ifdef JP
        /* "no more" ¤Î¾ì¹ç¤Ï¤³¤Á¤é¤Çɽ¼¨¤òʬ¤±¤ë */
        if (o_ptr->number <= 0)
        {
                msg_format("¾²¾å¤Ë¤Ï¡¢¤â¤¦%s¤Ï¤Ê¤¤¡£", o_name);
        }
        else
        {
                msg_format("¾²¾å¤Ë¤Ï¡¢¤Þ¤À %s¤¬¤¢¤ë¡£", o_name);
        }
#else
        msg_format("You see %s.", o_name);
#endif

}


/*!
 * @brief ¾²¾å¤Î¥¢¥¤¥Æ¥à¤Î¿ô¤òÁý¤ä¤¹ /
 * Increase the "number" of an item on the floor
 * @param item Áý¤ä¤·¤¿¤¤¥¢¥¤¥Æ¥à¤Î½ê»ý¥¹¥í¥Ã¥È
 * @param num Áý¤ä¤·¤¿¤¤¥¢¥¤¥Æ¥à¤Î¿ô
 * @return ¤Ê¤·
 */
void floor_item_increase(int item, int num)
{
        object_type *o_ptr = &o_list[item];

        /* Apply */
        num += o_ptr->number;

        /* Bounds check */
        if (num > 255) num = 255;
        else if (num < 0) num = 0;

        /* Un-apply */
        num -= o_ptr->number;

        /* Change the number */
        o_ptr->number += num;
}


/*!
 * @brief ¾²¾å¤Î¿ô¤Î̵¤¯¤Ê¤Ã¤¿¥¢¥¤¥Æ¥à¥¹¥í¥Ã¥È¤ò¾Ãµî¤¹¤ë /
 * Optimize an item on the floor (destroy "empty" items)
 * @param item ¾Ãµî¤·¤¿¤¤¥¢¥¤¥Æ¥à¤Î½ê»ý¥¹¥í¥Ã¥È
 * @return ¤Ê¤·
 */
void floor_item_optimize(int item)
{
        object_type *o_ptr = &o_list[item];

        /* Paranoia -- be sure it exists */
        if (!o_ptr->k_idx) return;

        /* Only optimize empty items */
        if (o_ptr->number) return;

        /* Delete the object */
        delete_object_idx(item);
}


/*!
 * @brief ¥¢¥¤¥Æ¥à¤ò½¦¤¦ºÝ¤Ë¥¶¥Ã¥¯¤«¤é°î¤ì¤º¤ËºÑ¤à¤«¤òȽÄꤹ¤ë /
 * Check if we have space for an item in the pack without overflow
 * @param o_ptr ½¦¤¤¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @return °î¤ì¤º¤ËºÑ¤à¤Ê¤éTRUE¤òÊÖ¤¹
 */
bool inven_carry_okay(object_type *o_ptr)
{
        int j;

        /* Empty slot? */
        if (inven_cnt < INVEN_PACK) return (TRUE);

        /* Similar slot? */
        for (j = 0; j < INVEN_PACK; j++)
        {
                object_type *j_ptr = &inventory[j];

                /* Skip non-objects */
                if (!j_ptr->k_idx) continue;

                /* Check if the two items can be combined */
                if (object_similar(j_ptr, o_ptr)) return (TRUE);
        }

        /* Nope */
        return (FALSE);
}

/*!
 * @brief ¥ª¥Ö¥¸¥§¥¯¥È¤òÄêµÁ¤µ¤ì¤¿´ð½à¤Ë½¾¤¤¥½¡¼¥È¤¹¤ë¤¿¤á¤Î´Ø¿ô /
 * Check if we have space for an item in the pack without overflow
 * @param o_ptr Èæ³ÓÂоݥª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿1
 * @param o_value o_ptr¤Î¥¢¥¤¥Æ¥à²ÁÃ͡ʼêÆ°¤Ç¤¢¤é¤«¤¸¤áÂåÆþ¤¹¤ëɬÍפ¬¤¢¤ë¡©¡Ë
 * @param j_ptr Èæ³ÓÂоݥª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿2
 * @return o_ptr¤ÎÊý¤¬¾å°Ì¤Ê¤é¤ÐTRUE¤òÊÖ¤¹¡£
 */
bool object_sort_comp(object_type *o_ptr, s32b o_value, object_type *j_ptr)
{
        int o_type, j_type;

        /* Use empty slots */
        if (!j_ptr->k_idx) return TRUE;

        /* Hack -- readable books always come first */
        if ((o_ptr->tval == REALM1_BOOK) &&
            (j_ptr->tval != REALM1_BOOK)) return TRUE;
        if ((j_ptr->tval == REALM1_BOOK) &&
            (o_ptr->tval != REALM1_BOOK)) return FALSE;

        if ((o_ptr->tval == REALM2_BOOK) &&
            (j_ptr->tval != REALM2_BOOK)) return TRUE;
        if ((j_ptr->tval == REALM2_BOOK) &&
            (o_ptr->tval != REALM2_BOOK)) return FALSE;

        /* Objects sort by decreasing type */
        if (o_ptr->tval > j_ptr->tval) return TRUE;
        if (o_ptr->tval < j_ptr->tval) return FALSE;

        /* Non-aware (flavored) items always come last */
        /* Can happen in the home */
        if (!object_is_aware(o_ptr)) return FALSE;
        if (!object_is_aware(j_ptr)) return TRUE;

        /* Objects sort by increasing sval */
        if (o_ptr->sval < j_ptr->sval) return TRUE;
        if (o_ptr->sval > j_ptr->sval) return FALSE;

        /* Unidentified objects always come last */
        /* Objects in the home can be unknown */
        if (!object_is_known(o_ptr)) return FALSE;
        if (!object_is_known(j_ptr)) return TRUE;

        /* Fixed artifacts, random artifacts and ego items */
        if (object_is_fixed_artifact(o_ptr)) o_type = 3;
        else if (o_ptr->art_name) o_type = 2;
        else if (object_is_ego(o_ptr)) o_type = 1;
        else o_type = 0;

        if (object_is_fixed_artifact(j_ptr)) j_type = 3;
        else if (j_ptr->art_name) j_type = 2;
        else if (object_is_ego(j_ptr)) j_type = 1;
        else j_type = 0;

        if (o_type < j_type) return TRUE;
        if (o_type > j_type) return FALSE;

        switch (o_ptr->tval)
        {
        case TV_FIGURINE:
        case TV_STATUE:
        case TV_CORPSE:
        case TV_CAPTURE:
                if (r_info[o_ptr->pval].level < r_info[j_ptr->pval].level) return TRUE;
                if ((r_info[o_ptr->pval].level == r_info[j_ptr->pval].level) && (o_ptr->pval < j_ptr->pval)) return TRUE;
                return FALSE;

        case TV_SHOT:
        case TV_ARROW:
        case TV_BOLT:
                /* Objects sort by increasing hit/damage bonuses */
                if (o_ptr->to_h + o_ptr->to_d < j_ptr->to_h + j_ptr->to_d) return TRUE;
                if (o_ptr->to_h + o_ptr->to_d > j_ptr->to_h + j_ptr->to_d) return FALSE;
                break;

        /* Hack:  otherwise identical rods sort by
        increasing recharge time --dsb */
        case TV_ROD:
                if (o_ptr->pval < j_ptr->pval) return TRUE;
                if (o_ptr->pval > j_ptr->pval) return FALSE;
                break;
        }

        /* Objects sort by decreasing value */
        return o_value > object_value(j_ptr);
}


/*!
 * @brief ¥ª¥Ö¥¸¥§¥¯¥È¤ò¥×¥ì¥¤¥ä¡¼¤¬½¦¤Ã¤Æ½ê»ý¥¹¥í¥Ã¥È¤ËǼ¤á¤ë¥á¥¤¥ó¥ë¡¼¥Á¥ó /
 * Add an item to the players inventory, and return the slot used.
 * @param o_ptr ½¦¤¦¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @return ¼ý¤á¤é¤ì¤¿½ê»ý¥¹¥í¥Ã¥È¤ÎID¡¢½¦¤¦¤³¤È¤¬¤Ç¤­¤Ê¤«¤Ã¤¿¾ì¹ç-1¤òÊÖ¤¹¡£
 * @details
 * If the new item can combine with an existing item in the inventory,\n
 * it will do so, using "object_similar()" and "object_absorb()", else,\n
 * the item will be placed into the "proper" location in the inventory.\n
 *\n
 * This function can be used to "over-fill" the player's pack, but only\n
 * once, and such an action must trigger the "overflow" code immediately.\n
 * Note that when the pack is being "over-filled", the new item must be\n
 * placed into the "overflow" slot, and the "overflow" must take place\n
 * before the pack is reordered, but (optionally) after the pack is\n
 * combined.  This may be tricky.  See "dungeon.c" for info.\n
 *\n
 * Note that this code must remove any location/stack information\n
 * from the object once it is placed into the inventory.\n
 */
s16b inven_carry(object_type *o_ptr)
{
        int i, j, k;
        int n = -1;

        object_type *j_ptr;


        /* Check for combining */
        for (j = 0; j < INVEN_PACK; j++)
        {
                j_ptr = &inventory[j];

                /* Skip non-objects */
                if (!j_ptr->k_idx) continue;

                /* Hack -- track last item */
                n = j;

                /* Check if the two items can be combined */
                if (object_similar(j_ptr, o_ptr))
                {
                        /* Combine the items */
                        object_absorb(j_ptr, o_ptr);

                        /* Increase the weight */
                        p_ptr->total_weight += (o_ptr->number * o_ptr->weight);

                        /* Recalculate bonuses */
                        p_ptr->update |= (PU_BONUS);

                        /* Window stuff */
                        p_ptr->window |= (PW_INVEN);

                        /* Success */
                        return (j);
                }
        }


        /* Paranoia */
        if (inven_cnt > INVEN_PACK) return (-1);

        /* Find an empty slot */
        for (j = 0; j <= INVEN_PACK; j++)
        {
                j_ptr = &inventory[j];

                /* Use it if found */
                if (!j_ptr->k_idx) break;
        }

        /* Use that slot */
        i = j;


        /* Reorder the pack */
        if (i < INVEN_PACK)
        {
                /* Get the "value" of the item */
                s32b o_value = object_value(o_ptr);

                /* Scan every occupied slot */
                for (j = 0; j < INVEN_PACK; j++)
                {
                        if (object_sort_comp(o_ptr, o_value, &inventory[j])) break;
                }

                /* Use that slot */
                i = j;

                /* Slide objects */
                for (k = n; k >= i; k--)
                {
                        /* Hack -- Slide the item */
                        object_copy(&inventory[k+1], &inventory[k]);
                }

                /* Wipe the empty slot */
                object_wipe(&inventory[i]);
        }


        /* Copy the item */
        object_copy(&inventory[i], o_ptr);

        /* Access new object */
        j_ptr = &inventory[i];

        /* Forget stack */
        j_ptr->next_o_idx = 0;

        /* Forget monster */
        j_ptr->held_m_idx = 0;

        /* Forget location */
        j_ptr->iy = j_ptr->ix = 0;

        /* Player touches it, and no longer marked */
        j_ptr->marked = OM_TOUCHED;

        /* Increase the weight */
        p_ptr->total_weight += (j_ptr->number * j_ptr->weight);

        /* Count the items */
        inven_cnt++;

        /* Recalculate bonuses */
        p_ptr->update |= (PU_BONUS);

        /* Combine and Reorder pack */
        p_ptr->notice |= (PN_COMBINE | PN_REORDER);

        /* Window stuff */
        p_ptr->window |= (PW_INVEN);

        /* Return the slot */
        return (i);
}


/*!
 * @brief ÁõÈ÷¥¹¥í¥Ã¥È¤«¤é¥ª¥Ö¥¸¥§¥¯¥È¤ò³°¤¹¥á¥¤¥ó¥ë¡¼¥Á¥ó /
 * Take off (some of) a non-cursed equipment item
 * @param item ¥ª¥Ö¥¸¥§¥¯¥È¤ò³°¤·¤¿¤¤½ê»ý¥Æ¡¼¥Ö¥ë¤ÎID
 * @param amt ³°¤·¤¿¤¤¸Ä¿ô
 * @return ¼ý¤á¤é¤ì¤¿½ê»ý¥¹¥í¥Ã¥È¤ÎID¡¢½¦¤¦¤³¤È¤¬¤Ç¤­¤Ê¤«¤Ã¤¿¾ì¹ç-1¤òÊÖ¤¹¡£
 * @details
 * Note that only one item at a time can be wielded per slot.\n
 * Note that taking off an item when "full" may cause that item\n
 * to fall to the ground.\n
 * Return the inventory slot into which the item is placed.\n
 */
s16b inven_takeoff(int item, int amt)
{
        int slot;

        object_type forge;
        object_type *q_ptr;

        object_type *o_ptr;

        cptr act;

        char o_name[MAX_NLEN];


        /* Get the item to take off */
        o_ptr = &inventory[item];

        /* Paranoia */
        if (amt <= 0) return (-1);

        /* Verify */
        if (amt > o_ptr->number) amt = o_ptr->number;

        /* Get local object */
        q_ptr = &forge;

        /* Obtain a local object */
        object_copy(q_ptr, o_ptr);

        /* Modify quantity */
        q_ptr->number = amt;

        /* Describe the object */
        object_desc(o_name, q_ptr, 0);

        /* Took off weapon */
        if (((item == INVEN_RARM) || (item == INVEN_LARM)) &&
            object_is_melee_weapon(o_ptr))
        {
#ifdef JP
                act = "¤òÁõÈ÷¤«¤é¤Ï¤º¤·¤¿";
#else
                act = "You were wielding";
#endif

        }

        /* Took off bow */
        else if (item == INVEN_BOW)
        {
#ifdef JP
                act = "¤òÁõÈ÷¤«¤é¤Ï¤º¤·¤¿";
#else
                act = "You were holding";
#endif

        }

        /* Took off light */
        else if (item == INVEN_LITE)
        {
#ifdef JP
                act = "¤ò¸÷¸»¤«¤é¤Ï¤º¤·¤¿";
#else
                act = "You were holding";
#endif

        }

        /* Took off something */
        else
        {
#ifdef JP
                act = "¤òÁõÈ÷¤«¤é¤Ï¤º¤·¤¿";
#else
                act = "You were wearing";
#endif

        }

        /* Modify, Optimize */
        inven_item_increase(item, -amt);
        inven_item_optimize(item);

        /* Carry the object */
        slot = inven_carry(q_ptr);

        /* Message */
#ifdef JP
        msg_format("%s(%c)%s¡£", o_name, index_to_label(slot), act);
#else
        msg_format("%s %s (%c).", act, o_name, index_to_label(slot));
#endif


        /* Return slot */
        return (slot);
}


/*!
 * @brief ½ê»ý¥¹¥í¥Ã¥È¤«¤é¾²²¼¤Ë¥ª¥Ö¥¸¥§¥¯¥È¤òÍî¤È¤¹¥á¥¤¥ó¥ë¡¼¥Á¥ó /
 * Drop (some of) a non-cursed inventory/equipment item
 * @param item ½ê»ý¥Æ¡¼¥Ö¥ë¤ÎID
 * @param amt Íî¤È¤·¤¿¤¤¸Ä¿ô
 * @return ¤Ê¤·
 * @details
 * The object will be dropped "near" the current location
 */
void inven_drop(int item, int amt)
{
        object_type forge;
        object_type *q_ptr;

        object_type *o_ptr;

        char o_name[MAX_NLEN];


        /* Access original object */
        o_ptr = &inventory[item];

        /* Error check */
        if (amt <= 0) return;

        /* Not too many */
        if (amt > o_ptr->number) amt = o_ptr->number;


        /* Take off equipment */
        if (item >= INVEN_RARM)
        {
                /* Take off first */
                item = inven_takeoff(item, amt);

                /* Access original object */
                o_ptr = &inventory[item];
        }


        /* Get local object */
        q_ptr = &forge;

        /* Obtain local object */
        object_copy(q_ptr, o_ptr);

        /* Distribute charges of wands or rods */
        distribute_charges(o_ptr, q_ptr, amt);

        /* Modify quantity */
        q_ptr->number = amt;

        /* Describe local object */
        object_desc(o_name, q_ptr, 0);

        /* Message */
#ifdef JP
        msg_format("%s(%c)¤òÍî¤È¤·¤¿¡£", o_name, index_to_label(item));
#else
        msg_format("You drop %s (%c).", o_name, index_to_label(item));
#endif


        /* Drop it near the player */
        (void)drop_near(q_ptr, 0, py, px);

        /* Modify, Describe, Optimize */
        inven_item_increase(item, -amt);
        inven_item_describe(item);
        inven_item_optimize(item);
}


/*!
 * @brief ¥×¥ì¥¤¥ä¡¼¤Î½ê»ý¥¹¥í¥Ã¥È¤Ë¸ºß¤¹¤ë¥ª¥Ö¥¸¥§¥¯¥È¤ò¤Þ¤È¤á¤Ê¤ª¤¹ /
 * Combine items in the pack
 * @return ¤Ê¤·
 * @details
 * Note special handling of the "overflow" slot
 */
void combine_pack(void)
{
        int             i, j, k;
        object_type     *o_ptr;
        object_type     *j_ptr;
        bool            flag = FALSE, combined;

        do
        {
                combined = FALSE;

                /* Combine the pack (backwards) */
                for (i = INVEN_PACK; i > 0; i--)
                {
                        /* Get the item */
                        o_ptr = &inventory[i];

                        /* Skip empty items */
                        if (!o_ptr->k_idx) continue;

                        /* Scan the items above that item */
                        for (j = 0; j < i; j++)
                        {
                                int max_num;

                                /* Get the item */
                                j_ptr = &inventory[j];

                                /* Skip empty items */
                                if (!j_ptr->k_idx) continue;

                                /*
                                 * Get maximum number of the stack if these
                                 * are similar, get zero otherwise.
                                 */
                                max_num = object_similar_part(j_ptr, o_ptr);

                                /* Can we (partialy) drop "o_ptr" onto "j_ptr"? */
                                if (max_num && j_ptr->number < max_num)
                                {
                                        if (o_ptr->number + j_ptr->number <= max_num)
                                        {
                                                /* Take note */
                                                flag = TRUE;

                                                /* Add together the item counts */
                                                object_absorb(j_ptr, o_ptr);

                                                /* One object is gone */
                                                inven_cnt--;

                                                /* Slide everything down */
                                                for (k = i; k < INVEN_PACK; k++)
                                                {
                                                        /* Structure copy */
                                                        inventory[k] = inventory[k+1];
                                                }

                                                /* Erase the "final" slot */
                                                object_wipe(&inventory[k]);
                                        }
                                        else
                                        {
                                                int old_num = o_ptr->number;
                                                int remain = j_ptr->number + o_ptr->number - max_num;
#if 0
                                                o_ptr->number -= remain;
#endif
                                                /* Add together the item counts */
                                                object_absorb(j_ptr, o_ptr);

                                                o_ptr->number = remain;

                                                /* Hack -- if rods are stacking, add the pvals (maximum timeouts) and current timeouts together. -LM- */
                                                if (o_ptr->tval == TV_ROD)
                                                {
                                                        o_ptr->pval =  o_ptr->pval * remain / old_num;
                                                        o_ptr->timeout = o_ptr->timeout * remain / old_num;
                                                }

                                                /* Hack -- if wands are stacking, combine the charges. -LM- */
                                                if (o_ptr->tval == TV_WAND)
                                                {
                                                        o_ptr->pval = o_ptr->pval * remain / old_num;
                                                }
                                        }

                                        /* Window stuff */
                                        p_ptr->window |= (PW_INVEN);

                                        /* Take note */
                                        combined = TRUE;

                                        /* Done */
                                        break;
                                }
                        }
                }
        }
        while (combined);

        /* Message */
#ifdef JP
        if (flag) msg_print("¥¶¥Ã¥¯¤ÎÃæ¤Î¥¢¥¤¥Æ¥à¤ò¤Þ¤È¤áľ¤·¤¿¡£");
#else
        if (flag) msg_print("You combine some items in your pack.");
#endif
}

/*!
 * @brief ¥×¥ì¥¤¥ä¡¼¤Î½ê»ý¥¹¥í¥Ã¥È¤Ë¸ºß¤¹¤ë¥ª¥Ö¥¸¥§¥¯¥È¤òʤÓÂؤ¨¤ë /
 * Reorder items in the pack
 * @return ¤Ê¤·
 * @details
 * Note special handling of the "overflow" slot
 */
void reorder_pack(void)
{
        int             i, j, k;
        s32b            o_value;
        object_type     forge;
        object_type     *q_ptr;
        object_type     *o_ptr;
        bool            flag = FALSE;


        /* Re-order the pack (forwards) */
        for (i = 0; i < INVEN_PACK; i++)
        {
                /* Mega-Hack -- allow "proper" over-flow */
                if ((i == INVEN_PACK) && (inven_cnt == INVEN_PACK)) break;

                /* Get the item */
                o_ptr = &inventory[i];

                /* Skip empty slots */
                if (!o_ptr->k_idx) continue;

                /* Get the "value" of the item */
                o_value = object_value(o_ptr);

                /* Scan every occupied slot */
                for (j = 0; j < INVEN_PACK; j++)
                {
                        if (object_sort_comp(o_ptr, o_value, &inventory[j])) break;
                }

                /* Never move down */
                if (j >= i) continue;

                /* Take note */
                flag = TRUE;

                /* Get local object */
                q_ptr = &forge;

                /* Save a copy of the moving item */
                object_copy(q_ptr, &inventory[i]);

                /* Slide the objects */
                for (k = i; k > j; k--)
                {
                        /* Slide the item */
                        object_copy(&inventory[k], &inventory[k-1]);
                }

                /* Insert the moving item */
                object_copy(&inventory[j], q_ptr);

                /* Window stuff */
                p_ptr->window |= (PW_INVEN);
        }

        /* Message */
#ifdef JP
        if (flag) msg_print("¥¶¥Ã¥¯¤ÎÃæ¤Î¥¢¥¤¥Æ¥à¤òÊ¤Ùľ¤·¤¿¡£");
#else
        if (flag) msg_print("You reorder some items in your pack.");
#endif

}

/*!
 * @brief ¸½ºß¥¢¥¯¥Æ¥£¥Ö¤Ë¤Ê¤Ã¤Æ¤¤¤ë¥¦¥£¥ó¥É¥¦¤Ë¥ª¥Ö¥¸¥§¥¯¥È¤Î¾ÜºÙ¤òɽ¼¨¤¹¤ë /
 * Hack -- display an object kind in the current window
 * @param k_idx ¥Ù¡¼¥¹¥¢¥¤¥Æ¥à¤Î»²¾ÈID
 * @return ¤Ê¤·
 * @details
 * Include list of usable spells for readible books
 */
void display_koff(int k_idx)
{
        int y;

        object_type forge;
        object_type *q_ptr;
        int         sval;
        int         use_realm;

        char o_name[MAX_NLEN];


        /* Erase the window */
        for (y = 0; y < Term->hgt; y++)
        {
                /* Erase the line */
                Term_erase(0, y, 255);
        }

        /* No info */
        if (!k_idx) return;

        /* Get local object */
        q_ptr = &forge;

        /* Prepare the object */
        object_prep(q_ptr, k_idx);

        /* Describe */
        object_desc(o_name, q_ptr, (OD_OMIT_PREFIX | OD_NAME_ONLY | OD_STORE));

        /* Mention the object name */
        Term_putstr(0, 0, -1, TERM_WHITE, o_name);

        /* Access the item's sval */
        sval = q_ptr->sval;
        use_realm = tval2realm(q_ptr->tval);

        /* Warriors are illiterate */
        if (p_ptr->realm1 || p_ptr->realm2)
        {
                if ((use_realm != p_ptr->realm1) && (use_realm != p_ptr->realm2)) return;
        }
        else
        {
                if ((p_ptr->pclass != CLASS_SORCERER) && (p_ptr->pclass != CLASS_RED_MAGE)) return;
                if (!is_magic(use_realm)) return;
                if ((p_ptr->pclass == CLASS_RED_MAGE) && (use_realm != REALM_ARCANE) && (sval > 1)) return;
        }

        /* Display spells in readible books */
        {
                int     spell = -1;
                int     num = 0;
                byte    spells[64];

                /* Extract spells */
                for (spell = 0; spell < 32; spell++)
                {
                        /* Check for this spell */
                        if (fake_spell_flags[sval] & (1L << spell))
                        {
                                /* Collect this spell */
                                spells[num++] = spell;
                        }
                }

                /* Print spells */
                print_spells(0, spells, num, 2, 0, use_realm);
        }
}

/*!
 * @brief ·Ù¹ð¤òÊü¤Ä¥¢¥¤¥Æ¥à¤òÁªÂò¤¹¤ë /
 * Choose one of items that have warning flag
 * Calculate spell damages
 * @return ·Ù¹ð¤ò¹Ô¤¦
 */
object_type *choose_warning_item(void)
{
        int i;
        int choices[INVEN_TOTAL - INVEN_RARM];
        int number = 0;

        /* Paranoia -- Player has no warning ability */
        if (!p_ptr->warning) return NULL;

        /* Search Inventory */
        for (i = INVEN_RARM; i < INVEN_TOTAL; i++)
        {
                u32b flgs[TR_FLAG_SIZE];
                object_type *o_ptr = &inventory[i];

                object_flags(o_ptr, flgs);
                if (have_flag(flgs, TR_WARNING))
                {
                        choices[number] = i;
                        number++;
                }
        }

        /* Choice one of them */
        return number ? &inventory[choices[randint0(number)]] : NULL;
}

/*!
 * @brief ·Ù¹ð´ð½à¤òÄê¤á¤ë¤¿¤á¤ËËâË¡¤Î¸ú²Ì°À­¤Ë´ð¤Å¤¤¤ÆºÇÂçËâË¡¥À¥á¡¼¥¸¤ò·×»»¤¹¤ë /
 * Calculate spell damages
 * @param m_ptr ËâË¡¤ò¹Ô»È¤¹¤ë¥â¥ó¥¹¥¿¡¼¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @param typ ¸ú²Ì°À­¤ÎID
 * @param dam ´ðËÜ¥À¥á¡¼¥¸
 * @param max »»½Ð¤·¤¿ºÇÂç¥À¥á¡¼¥¸¤òÊÖ¤¹¥Ý¥¤¥ó¥¿
 * @return ¤Ê¤·
 */
static void spell_damcalc(monster_type *m_ptr, int typ, int dam, int *max)
{
        monster_race *r_ptr = &r_info[m_ptr->r_idx];
        int          rlev = r_ptr->level;
        bool         ignore_wraith_form = FALSE;

        /* Vulnerability, resistance and immunity */
        switch (typ)
        {
        case GF_ELEC:
                if (p_ptr->immune_elec)
                {
                        dam = 0;
                        ignore_wraith_form = TRUE;
                }
                else
                {
                        if (p_ptr->muta3 & MUT3_VULN_ELEM) dam *= 2;
                        if (p_ptr->special_defense & KATA_KOUKIJIN) dam += dam / 3;
                        if (prace_is_(RACE_ANDROID)) dam += dam / 3;
                        if (p_ptr->resist_elec) dam = (dam + 2) / 3;
                        if (IS_OPPOSE_ELEC())
                                dam = (dam + 2) / 3;
                }
                break;

        case GF_POIS:
                if (p_ptr->resist_pois) dam = (dam + 2) / 3;
                if (IS_OPPOSE_POIS()) dam = (dam + 2) / 3;
                break;

        case GF_ACID:
                if (p_ptr->immune_acid)
                {
                        dam = 0;
                        ignore_wraith_form = TRUE;
                }
                else
                {
                        if (p_ptr->muta3 & MUT3_VULN_ELEM) dam *= 2;
                        if (p_ptr->special_defense & KATA_KOUKIJIN) dam += dam / 3;
                        if (p_ptr->resist_acid) dam = (dam + 2) / 3;
                        if (IS_OPPOSE_ACID()) dam = (dam + 2) / 3;
                }
                break;

        case GF_COLD:
        case GF_ICE:
                if (p_ptr->immune_cold)
                {
                        dam = 0;
                        ignore_wraith_form = TRUE;
                }
                else
                {
                        if (p_ptr->muta3 & MUT3_VULN_ELEM) dam *= 2;
                        if (p_ptr->special_defense & KATA_KOUKIJIN) dam += dam / 3;
                        if (p_ptr->resist_cold) dam = (dam + 2) / 3;
                        if (IS_OPPOSE_COLD()) dam = (dam + 2) / 3;
                }
                break;

        case GF_FIRE:
                if (p_ptr->immune_fire)
                {
                        dam = 0;
                        ignore_wraith_form = TRUE;
                }
                else
                {
                        if (p_ptr->muta3 & MUT3_VULN_ELEM) dam *= 2;
                        if (prace_is_(RACE_ENT)) dam += dam / 3;
                        if (p_ptr->special_defense & KATA_KOUKIJIN) dam += dam / 3;
                        if (p_ptr->resist_fire) dam = (dam + 2) / 3;
                        if (IS_OPPOSE_FIRE()) dam = (dam + 2) / 3;
                }
                break;

        case GF_PSY_SPEAR:
                ignore_wraith_form = TRUE;
                break;

        case GF_ARROW:
                if (!p_ptr->blind &&
                    ((inventory[INVEN_RARM].k_idx && (inventory[INVEN_RARM].name1 == ART_ZANTETSU)) ||
                     (inventory[INVEN_LARM].k_idx && (inventory[INVEN_LARM].name1 == ART_ZANTETSU))))
                {
                        dam = 0;
                        ignore_wraith_form = TRUE;
                }
                break;

        case GF_LITE:
                if (p_ptr->resist_lite) dam /= 2; /* Worst case of 4 / (d4 + 7) */
                if (prace_is_(RACE_VAMPIRE) || (p_ptr->mimic_form == MIMIC_VAMPIRE)) dam *= 2;
                else if (prace_is_(RACE_S_FAIRY)) dam = dam * 4 / 3;

                /*
                 * Cannot use "ignore_wraith_form" strictly (for "random one damage")
                 * "dam *= 2;" for later "dam /= 2"
                 */
                if (p_ptr->wraith_form) dam *= 2;
                break;

        case GF_DARK:
                if (prace_is_(RACE_VAMPIRE) || (p_ptr->mimic_form == MIMIC_VAMPIRE) || p_ptr->wraith_form)
                {
                        dam = 0;
                        ignore_wraith_form = TRUE;
                }
                else if (p_ptr->resist_dark) dam /= 2; /* Worst case of 4 / (d4 + 7) */
                break;

        case GF_SHARDS:
                if (p_ptr->resist_shard) dam = dam * 3 / 4; /* Worst case of 6 / (d4 + 7) */
                break;

        case GF_SOUND:
                if (p_ptr->resist_sound) dam = dam * 5 / 8; /* Worst case of 5 / (d4 + 7) */
                break;

        case GF_CONFUSION:
                if (p_ptr->resist_conf) dam = dam * 5 / 8; /* Worst case of 5 / (d4 + 7) */
                break;

        case GF_CHAOS:
                if (p_ptr->resist_chaos) dam = dam * 3 / 4; /* Worst case of 6 / (d4 + 7) */
                break;

        case GF_NETHER:
                if (prace_is_(RACE_SPECTRE))
                {
                        dam = 0;
                        ignore_wraith_form = TRUE;
                }
                else if (p_ptr->resist_neth) dam = dam * 3 / 4; /* Worst case of 6 / (d4 + 7) */
                break;

        case GF_DISENCHANT:
                if (p_ptr->resist_disen) dam = dam * 3 / 4; /* Worst case of 6 / (d4 + 7) */
                break;

        case GF_NEXUS:
                if (p_ptr->resist_nexus) dam = dam * 3 / 4; /* Worst case of 6 / (d4 + 7) */
                break;

        case GF_TIME:
                if (p_ptr->resist_time) dam /= 2; /* Worst case of 4 / (d4 + 7) */
                break;

        case GF_GRAVITY:
                if (p_ptr->levitation) dam = (dam * 2) / 3;
                break;

        case GF_ROCKET:
                if (p_ptr->resist_shard) dam /= 2;
                break;

        case GF_NUKE:
                if (p_ptr->resist_pois) dam = (2 * dam + 2) / 5;
                if (IS_OPPOSE_POIS()) dam = (2 * dam + 2) / 5;
                break;

        case GF_DEATH_RAY:
                if (p_ptr->mimic_form)
                {
                        if (mimic_info[p_ptr->mimic_form].MIMIC_FLAGS & MIMIC_IS_NONLIVING)
                        {
                                dam = 0;
                                ignore_wraith_form = TRUE;
                        }
                }
                else
                {
                        switch (p_ptr->prace)
                        {
                        case RACE_GOLEM:
                        case RACE_SKELETON:
                        case RACE_ZOMBIE:
                        case RACE_VAMPIRE:
                        case RACE_DEMON:
                        case RACE_SPECTRE:
                                dam = 0;
                                ignore_wraith_form = TRUE;
                                break;
                        }
                }
                break;

        case GF_HOLY_FIRE:
                if (p_ptr->align > 10) dam /= 2;
                else if (p_ptr->align < -10) dam *= 2;
                break;

        case GF_HELL_FIRE:
                if (p_ptr->align > 10) dam *= 2;
                break;

        case GF_MIND_BLAST:
        case GF_BRAIN_SMASH:
                if (100 + rlev / 2 <= MAX(5, p_ptr->skill_sav))
                {
                        dam = 0;
                        ignore_wraith_form = TRUE;
                }
                break;

        case GF_CAUSE_1:
        case GF_CAUSE_2:
        case GF_CAUSE_3:
        case GF_HAND_DOOM:
                if (100 + rlev / 2 <= p_ptr->skill_sav)
                {
                        dam = 0;
                        ignore_wraith_form = TRUE;
                }
                break;

        case GF_CAUSE_4:
                if ((100 + rlev / 2 <= p_ptr->skill_sav) && (m_ptr->r_idx != MON_KENSHIROU))
                {
                        dam = 0;
                        ignore_wraith_form = TRUE;
                }
                break;
        }

        if (p_ptr->wraith_form && !ignore_wraith_form)
        {
                dam /= 2;
                if (!dam) dam = 1;
        }

        if (dam > *max) *max = dam;
}

/*!
* @brief ·Ù¹ð´ð½à¤òÄê¤á¤ë¤¿¤á¤ËËâË¡¤Î¸ú²Ì°À­¤Ë´ð¤Å¤¤¤ÆºÇÂçËâË¡¥À¥á¡¼¥¸¤ò·×»»¤¹¤ë¡£ /
* Calculate spell damages
* @param spell_num RF4¤Ê¤éRF4_SPELL_START¤Î¤è¤¦¤Ë32¶èÀÚ¤ê¤Î¥Ù¡¼¥¹¤È¤Ê¤ë¿ôÃÍ
* @param spell_flag RF4_SHRIEK¤Ê¤É¤Î¥¹¥Ú¥ë¥Õ¥é¥°
* @param typ ¸ú²Ì°À­¤ÎID
* @param m_idx ËâË¡¤ò¹Ô»È¤¹¤ë¥â¥ó¥¹¥¿¡¼¤ÎID
* @param max »»½Ð¤·¤¿ºÇÂç¥À¥á¡¼¥¸¤òÊÖ¤¹¥Ý¥¤¥ó¥¿
* @return ¤Ê¤·
*/
void spell_damcalc_by_spellnum(int spell_num, int spell_flag, int typ, int m_idx, int *max)
{
    monster_type *m_ptr = &m_list[m_idx];
    int dam = monspell_damage(monspell_num(spell_num, spell_flag), m_idx, DAM_MAX);
    spell_damcalc(m_ptr, typ, dam, max);
}

/*!
 * @brief ·Ù¹ð´ð½à¤òÄê¤á¤ë¤¿¤á¤Ë¥â¥ó¥¹¥¿¡¼¤ÎÂÇ·âºÇÂç¥À¥á¡¼¥¸¤ò»»½Ð¤¹¤ë /
 * Calculate blow damages
 * @param m_ptr ÂÇ·â¤ò¹Ô»È¤¹¤ë¥â¥ó¥¹¥¿¡¼¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @param blow_ptr ¥â¥ó¥¹¥¿¡¼¤ÎÂÇ·âǽÎϤι½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @return »»½Ð¤µ¤ì¤¿ºÇÂç¥À¥á¡¼¥¸¤òÊÖ¤¹¡£
 */
static int blow_damcalc(monster_type *m_ptr, monster_blow *blow_ptr)
{
        int  dam = blow_ptr->d_dice * blow_ptr->d_side;
        int  dummy_max = 0;
        bool check_wraith_form = TRUE;

        if (blow_ptr->method != RBM_EXPLODE)
        {
                int ac = p_ptr->ac + p_ptr->to_a;

                switch (blow_ptr->effect)
                {
                case RBE_SUPERHURT:
                {
                        int tmp_dam = dam - (dam * ((ac < 150) ? ac : 150) / 250);
                        dam = MAX(dam, tmp_dam * 2);
                        break;
                }

                case RBE_HURT:
                case RBE_SHATTER:
                        dam -= (dam * ((ac < 150) ? ac : 150) / 250);
                        break;

                case RBE_ACID:
                        spell_damcalc(m_ptr, GF_ACID, dam, &dummy_max);
                        dam = dummy_max;
                        check_wraith_form = FALSE;
                        break;

                case RBE_ELEC:
                        spell_damcalc(m_ptr, GF_ELEC, dam, &dummy_max);
                        dam = dummy_max;
                        check_wraith_form = FALSE;
                        break;

                case RBE_FIRE:
                        spell_damcalc(m_ptr, GF_FIRE, dam, &dummy_max);
                        dam = dummy_max;
                        check_wraith_form = FALSE;
                        break;

                case RBE_COLD:
                        spell_damcalc(m_ptr, GF_COLD, dam, &dummy_max);
                        dam = dummy_max;
                        check_wraith_form = FALSE;
                        break;

                case RBE_DR_MANA:
                        dam = 0;
                        check_wraith_form = FALSE;
                        break;
                }

                if (check_wraith_form && p_ptr->wraith_form)
                {
                        dam /= 2;
                        if (!dam) dam = 1;
                }
        }
        else
        {
                dam = (dam + 1) / 2;
                spell_damcalc(m_ptr, mbe_info[blow_ptr->effect].explode_type, dam, &dummy_max);
                dam = dummy_max;
        }

        return dam;
}

/*!
 * @brief ¥×¥ì¥¤¥ä¡¼¤¬ÆÃÄêÃÏÅÀ¤Ø°ÜÆ°¤·¤¿¾ì¹ç¤Ë·Ù¹ð¤òȯ¤¹¤ë½èÍý /
 * Examine the grid (xx,yy) and warn the player if there are any danger
 * @param xx ´í¸±À­¤òÄ´ºº¤¹¤ë¥Þ¥¹¤ÎXºÂɸ
 * @param yy ´í¸±À­¤òÄ´ºº¤¹¤ë¥Þ¥¹¤ÎYºÂɸ
 * @return ·Ù¹ð¤ò̵»ë¤·¤Æ¿Ê¤à¤³¤È¤òÁªÂò¤¹¤ë¤«¤«ÌäÂ̵꤬¤±¤ì¤ÐTRUE¡¢·Ù¹ð¤Ë½¾¤Ã¤¿¤Ê¤éFALSE¤òÊÖ¤¹¡£
 */
bool process_warning(int xx, int yy)
{
        int mx, my;
        cave_type *c_ptr;
        char o_name[MAX_NLEN];

#define WARNING_AWARE_RANGE 12
        int dam_max = 0;
        static int old_damage = 0;

        for (mx = xx - WARNING_AWARE_RANGE; mx < xx + WARNING_AWARE_RANGE + 1; mx++)
        {
                for (my = yy - WARNING_AWARE_RANGE; my < yy + WARNING_AWARE_RANGE + 1; my++)
                {
                        int dam_max0 = 0;
                        monster_type *m_ptr;
                        monster_race *r_ptr;

                        if (!in_bounds(my, mx) || (distance(my, mx, yy, xx) > WARNING_AWARE_RANGE)) continue;

                        c_ptr = &cave[my][mx];

                        if (!c_ptr->m_idx) continue;

                        m_ptr = &m_list[c_ptr->m_idx];

                        if (MON_CSLEEP(m_ptr)) continue;
                        if (!is_hostile(m_ptr)) continue;

                        r_ptr = &r_info[m_ptr->r_idx];

                        /* Monster spells (only powerful ones)*/
                        if (projectable(my, mx, yy, xx))
            {
                                u32b f4 = r_ptr->flags4;
                                u32b f5 = r_ptr->flags5;
                                u32b f6 = r_ptr->flags6;

                                if (!(d_info[dungeon_type].flags1 & DF1_NO_MAGIC))
                                {
                    if (f4 & RF4_BA_CHAO) spell_damcalc_by_spellnum(RF4_SPELL_START, RF4_BA_CHAO, GF_CHAOS, c_ptr->m_idx,  &dam_max0);
                    if (f5 & RF5_BA_MANA) spell_damcalc_by_spellnum(RF5_SPELL_START, RF5_BA_MANA, GF_MANA, c_ptr->m_idx, &dam_max0);
                    if (f5 & RF5_BA_DARK) spell_damcalc_by_spellnum(RF5_SPELL_START, RF5_BA_DARK, GF_DARK, c_ptr->m_idx, &dam_max0);
                    if (f5 & RF5_BA_LITE) spell_damcalc_by_spellnum(RF5_SPELL_START, RF5_BA_LITE, GF_LITE, c_ptr->m_idx, &dam_max0);
                    if (f6 & RF6_HAND_DOOM) spell_damcalc_by_spellnum(RF6_SPELL_START, RF6_HAND_DOOM, GF_HAND_DOOM, c_ptr->m_idx, &dam_max0);
                    if (f6 & RF6_PSY_SPEAR) spell_damcalc_by_spellnum(RF6_SPELL_START, RF6_PSY_SPEAR, GF_PSY_SPEAR, c_ptr->m_idx, &dam_max0);
                                }
                if (f4 & RF4_ROCKET) spell_damcalc_by_spellnum(RF4_SPELL_START, RF4_ROCKET, GF_ROCKET, c_ptr->m_idx, &dam_max0);
                if (f4 & RF4_BR_ACID) spell_damcalc_by_spellnum(RF4_SPELL_START, RF4_BR_ACID, GF_ACID, c_ptr->m_idx, &dam_max0);
                if (f4 & RF4_BR_ELEC) spell_damcalc_by_spellnum(RF4_SPELL_START, RF4_BR_ELEC, GF_ELEC, c_ptr->m_idx, &dam_max0);
                if (f4 & RF4_BR_FIRE) spell_damcalc_by_spellnum(RF4_SPELL_START, RF4_BR_FIRE, GF_FIRE, c_ptr->m_idx, &dam_max0);
                if (f4 & RF4_BR_COLD) spell_damcalc_by_spellnum(RF4_SPELL_START, RF4_BR_COLD, GF_COLD, c_ptr->m_idx, &dam_max0);
                if (f4 & RF4_BR_POIS) spell_damcalc_by_spellnum(RF4_SPELL_START, RF4_BR_POIS, GF_POIS, c_ptr->m_idx, &dam_max0);
                if (f4 & RF4_BR_NETH) spell_damcalc_by_spellnum(RF4_SPELL_START, RF4_BR_NETH, GF_NETHER, c_ptr->m_idx, &dam_max0);
                if (f4 & RF4_BR_LITE) spell_damcalc_by_spellnum(RF4_SPELL_START, RF4_BR_LITE, GF_LITE, c_ptr->m_idx, &dam_max0);
                if (f4 & RF4_BR_DARK) spell_damcalc_by_spellnum(RF4_SPELL_START, RF4_BR_DARK, GF_DARK, c_ptr->m_idx, &dam_max0);
                if (f4 & RF4_BR_CONF) spell_damcalc_by_spellnum(RF4_SPELL_START, RF4_BR_CONF, GF_CONFUSION, c_ptr->m_idx, &dam_max0);
                if (f4 & RF4_BR_SOUN) spell_damcalc_by_spellnum(RF4_SPELL_START, RF4_BR_SOUN, GF_SOUND, c_ptr->m_idx, &dam_max0);
                if (f4 & RF4_BR_CHAO) spell_damcalc_by_spellnum(RF4_SPELL_START, RF4_BR_CHAO, GF_CHAOS, c_ptr->m_idx, &dam_max0);
                if (f4 & RF4_BR_DISE) spell_damcalc_by_spellnum(RF4_SPELL_START, RF4_BR_DISE, GF_DISENCHANT, c_ptr->m_idx, &dam_max0);
                if (f4 & RF4_BR_NEXU) spell_damcalc_by_spellnum(RF4_SPELL_START, RF4_BR_NEXU, GF_NEXUS, c_ptr->m_idx, &dam_max0);
                if (f4 & RF4_BR_TIME) spell_damcalc_by_spellnum(RF4_SPELL_START, RF4_BR_TIME, GF_TIME, c_ptr->m_idx, &dam_max0);
                if (f4 & RF4_BR_INER) spell_damcalc_by_spellnum(RF4_SPELL_START, RF4_BR_INER, GF_INERTIA, c_ptr->m_idx, &dam_max0);
                if (f4 & RF4_BR_GRAV) spell_damcalc_by_spellnum(RF4_SPELL_START, RF4_BR_GRAV, GF_GRAVITY, c_ptr->m_idx, &dam_max0);
                if (f4 & RF4_BR_SHAR) spell_damcalc_by_spellnum(RF4_SPELL_START, RF4_BR_SHAR, GF_SHARDS, c_ptr->m_idx, &dam_max0);
                if (f4 & RF4_BR_PLAS) spell_damcalc_by_spellnum(RF4_SPELL_START, RF4_BR_PLAS, GF_PLASMA, c_ptr->m_idx, &dam_max0);
                if (f4 & RF4_BR_WALL) spell_damcalc_by_spellnum(RF4_SPELL_START, RF4_BR_WALL, GF_FORCE, c_ptr->m_idx, &dam_max0);
                if (f4 & RF4_BR_MANA) spell_damcalc_by_spellnum(RF4_SPELL_START, RF4_BR_MANA, GF_MANA, c_ptr->m_idx, &dam_max0);
                if (f4 & RF4_BR_NUKE) spell_damcalc_by_spellnum(RF4_SPELL_START, RF4_BR_NUKE, GF_NUKE, c_ptr->m_idx, &dam_max0);
                if (f4 & RF4_BR_DISI) spell_damcalc_by_spellnum(RF4_SPELL_START, RF4_BR_DISI, GF_DISINTEGRATE, c_ptr->m_idx, &dam_max0);
                        }

                        /* Monster melee attacks */
                        if (!(r_ptr->flags1 & RF1_NEVER_BLOW) && !(d_info[dungeon_type].flags1 & DF1_NO_MELEE))
                        {
                                if (mx <= xx + 1 && mx >= xx - 1 && my <= yy + 1 && my >= yy - 1)
                                {
                                        int m;
                                        int dam_melee = 0;
                                        for (m = 0; m < 4; m++)
                                        {
                                                /* Skip non-attacks */
                                                if (!r_ptr->blow[m].method || (r_ptr->blow[m].method == RBM_SHOOT)) continue;

                                                /* Extract the attack info */
                                                dam_melee += blow_damcalc(m_ptr, &r_ptr->blow[m]);
                                                if (r_ptr->blow[m].method == RBM_EXPLODE) break;
                                        }
                                        if (dam_melee > dam_max0) dam_max0 = dam_melee;
                                }
                        }

                        /* Contribution from this monster */
                        dam_max += dam_max0;
                }
        }

        /* Prevent excessive warning */
        if (dam_max > old_damage)
        {
                old_damage = dam_max * 3 / 2;

                if (dam_max > p_ptr->chp / 2)
                {
                        object_type *o_ptr = choose_warning_item();

                        if (o_ptr)
                object_desc(o_name, o_ptr, (OD_OMIT_PREFIX | OD_NAME_ONLY));
            else 
                strcpy(o_name, _("ÂÎ", "body")); /* Warning ability without item */
            msg_format(_("%s¤¬±Ô¤¯¿Ì¤¨¤¿¡ª", "Your %s pulsates sharply!"), o_name);

                        disturb(0, 1);
            return get_check(_("ËÜÅö¤Ë¤³¤Î¤Þ¤Þ¿Ê¤à¤«¡©", "Really want to go ahead? "));
                }
        }
        else old_damage = old_damage / 2;

        c_ptr = &cave[yy][xx];
        if (((!easy_disarm && is_trap(c_ptr->feat))
            || (c_ptr->mimic && is_trap(c_ptr->feat))) && !one_in_(13))
        {
                object_type *o_ptr = choose_warning_item();

                if (o_ptr) 
            object_desc(o_name, o_ptr, (OD_OMIT_PREFIX | OD_NAME_ONLY));
        else
            strcpy(o_name, _("ÂÎ", "body")); /* Warning ability without item */
        msg_format(_("%s¤¬±Ô¤¯¿Ì¤¨¤¿¡ª", "Your %s pulsates sharply!"), o_name);
                disturb(0, 1);
        return get_check(_("ËÜÅö¤Ë¤³¤Î¤Þ¤Þ¿Ê¤à¤«¡©", "Really want to go ahead? "));
        }

        return TRUE;
}

/*!
 * @brief ¥¨¥Ã¥»¥ó¥¹¤ÎÉղòÄǽ¤ÊÉð´ï¤äÌðÃƤ«¤òÊÖ¤¹
 * @param o_ptr ¥Á¥§¥Ã¥¯¤·¤¿¤¤¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @return ¥¨¥Ã¥»¥ó¥¹¤ÎÉղòÄǽ¤ÊÉð´ï¤«ÌðÃƤʤé¤ÐTRUE¤òÊÖ¤¹¡£
 */
static bool item_tester_hook_melee_ammo(object_type *o_ptr)
{
        switch (o_ptr->tval)
        {
                case TV_HAFTED:
                case TV_POLEARM:
                case TV_DIGGING:
                case TV_BOLT:
                case TV_ARROW:
                case TV_SHOT:
                {
                        return (TRUE);
                }
                case TV_SWORD:
                {
                        if (o_ptr->sval != SV_DOKUBARI) return (TRUE);
                }
        }

        return (FALSE);
}


/*!
 * ¥¨¥Ã¥»¥ó¥¹¾ðÊó¤Î¹½Â¤ÂÎ / A structure for smithing
 */
typedef struct {
        int add;       /* TR flag number or special essence id */
        cptr add_name; /* Name of this ability */
        int type;      /* Menu number */
        int essence;   /* Index for carrying essences */
        int value;     /* Needed value to add this ability */
} essence_type;


/*!
 * ¥¨¥Ã¥»¥ó¥¹¾ðÊó¥Æ¡¼¥Ö¥ë Smithing type data for Weapon smith
 */
#ifdef JP
static essence_type essence_info[] = 
{
        {TR_STR, "ÏÓÎÏ", 4, TR_STR, 20},
        {TR_INT, "ÃÎǽ", 4, TR_INT, 20},
        {TR_WIS, "¸­¤µ", 4, TR_WIS, 20},
        {TR_DEX, "´ïÍѤµ", 4, TR_DEX, 20},
        {TR_CON, "Âѵ×ÎÏ", 4, TR_CON, 20},
        {TR_CHR, "Ì¥ÎÏ", 4, TR_CHR, 20},
        {TR_MAGIC_MASTERY, "ËâÎÏ»ÙÇÛ", 4, TR_MAGIC_MASTERY, 20},
        {TR_STEALTH, "±£Ì©", 4, TR_STEALTH, 40},
        {TR_SEARCH, "õº÷", 4, TR_SEARCH, 15},
        {TR_INFRA, "ÀÖ³°Àþ»ëÎÏ", 4, TR_INFRA, 15},
        {TR_TUNNEL, "ºÎ·¡", 4, TR_TUNNEL, 15},
        {TR_SPEED, "¥¹¥Ô¡¼¥É", 4, TR_SPEED, 12},
        {TR_BLOWS, "Äɲù¶·â", 1, TR_BLOWS, 20},
        {TR_CHAOTIC, "¥«¥ª¥¹¹¶·â", 1, TR_CHAOTIC, 15},
        {TR_VAMPIRIC, "µÛ·ì¹¶·â", 1, TR_VAMPIRIC, 60},
        {TR_IMPACT, "ÃÏ¿Ìȯư", 7, TR_IMPACT, 15},
        {TR_BRAND_POIS, "ÆÇ»¦", 1, TR_BRAND_POIS, 20},
        {TR_BRAND_ACID, "Íϲò", 1, TR_BRAND_ACID, 20},
        {TR_BRAND_ELEC, "ÅÅ·â", 1, TR_BRAND_ELEC, 20},
        {TR_BRAND_FIRE, "¾Æ´þ", 1, TR_BRAND_FIRE, 20},
        {TR_BRAND_COLD, "Åà·ë", 1, TR_BRAND_COLD, 20},
        {TR_SUST_STR, "ÏÓÎÏ°Ý»ý", 3, TR_SUST_STR, 15},
        {TR_SUST_INT, "ÃÎǽ°Ý»ý", 3, TR_SUST_STR, 15},
        {TR_SUST_WIS, "¸­¤µ°Ý»ý", 3, TR_SUST_STR, 15},
        {TR_SUST_DEX, "´ïÍѤµ°Ý»ý", 3, TR_SUST_STR, 15},
        {TR_SUST_CON, "Âѵ×ÎÏ°Ý»ý", 3, TR_SUST_STR, 15},
        {TR_SUST_CHR, "Ì¥ÎÏ°Ý»ý", 3, TR_SUST_STR, 15},
        {TR_IM_ACID, "»ÀÌȱÖ", 2, TR_IM_ACID, 20},
        {TR_IM_ELEC, "ÅÅ·âÌȱÖ", 2, TR_IM_ACID, 20},
        {TR_IM_FIRE, "²Ð±êÌȱÖ", 2, TR_IM_ACID, 20},
        {TR_IM_COLD, "Î䵤ÌȱÖ", 2, TR_IM_ACID, 20},
        {TR_REFLECT, "È¿¼Í", 2, TR_REFLECT, 20},
        {TR_FREE_ACT, "ËãáãÃΤ餺", 3, TR_FREE_ACT, 20},
        {TR_HOLD_EXP, "·Ð¸³ÃÍ°Ý»ý", 3, TR_HOLD_EXP, 20},
        {TR_RES_ACID, "ÂÑ»À", 2, TR_RES_ACID, 15},
        {TR_RES_ELEC, "ÂÑÅÅ·â", 2, TR_RES_ELEC, 15},
        {TR_RES_FIRE, "ÂѲбê", 2, TR_RES_FIRE, 15},
        {TR_RES_COLD, "ÂÑÎ䵤", 2, TR_RES_COLD, 15},
        {TR_RES_POIS, "ÂÑÆÇ", 2, TR_RES_POIS, 25},
        {TR_RES_FEAR, "ÂѶ²ÉÝ", 2, TR_RES_FEAR, 20},
        {TR_RES_LITE, "ÂÑÁ®¸÷", 2, TR_RES_LITE, 20},
        {TR_RES_DARK, "ÂѰŹõ", 2, TR_RES_DARK, 20},
        {TR_RES_BLIND, "ÂÑÌÕÌÜ", 2, TR_RES_BLIND, 20},
        {TR_RES_CONF, "ÂѺ®Íð", 2, TR_RES_CONF, 20},
        {TR_RES_SOUND, "Âѹ첻", 2, TR_RES_SOUND, 20},
        {TR_RES_SHARDS, "ÂÑÇËÊÒ", 2, TR_RES_SHARDS, 20},
        {TR_RES_NETHER, "ÂÑÃϹö", 2, TR_RES_NETHER, 20},
        {TR_RES_NEXUS, "ÂÑ°ø²Ìº®Íð", 2, TR_RES_NEXUS, 20},
        {TR_RES_CHAOS, "ÂÑ¥«¥ª¥¹", 2, TR_RES_CHAOS, 20},
        {TR_RES_DISEN, "ÂÑÎô²½", 2, TR_RES_DISEN, 20},
        {TR_SH_FIRE, "", 0, -2, 0},
        {TR_SH_ELEC, "", 0, -2, 0},
        {TR_SH_COLD, "", 0, -2, 0},
        {TR_NO_MAGIC, "È¿ËâË¡", 3, TR_NO_MAGIC, 15},
        {TR_WARNING, "·Ù¹ð", 3, TR_WARNING, 20},
        {TR_LEVITATION, "ÉâÍ·", 3, TR_LEVITATION, 20},
        {TR_LITE_1, "±Êµ×¸÷¸»", 3, TR_LITE_1, 15},
        {TR_LITE_2, "", 0, -2, 0},
        {TR_LITE_3, "", 0, -2, 0},
        {TR_SEE_INVIS, "²Ä»ëÆ©ÌÀ", 3, TR_SEE_INVIS, 20},
        {TR_TELEPATHY, "¥Æ¥ì¥Ñ¥·¡¼", 6, TR_TELEPATHY, 15},
        {TR_SLOW_DIGEST, "Ãپò½", 3, TR_SLOW_DIGEST, 15},
        {TR_REGEN, "µÞ®²óÉü", 3, TR_REGEN, 20},
        {TR_TELEPORT, "¥Æ¥ì¥Ý¡¼¥È", 3, TR_TELEPORT, 25},

        {TR_SLAY_EVIL, "¼Ù°­ÇÜÂÇ", 5, TR_SLAY_EVIL, 100},
        {TR_KILL_EVIL, "¼Ù°­ÇÜÇÜÂÇ", 0, TR_SLAY_EVIL, 60},
        {TR_SLAY_ANIMAL, "ưʪÇÜÂÇ", 5, TR_SLAY_ANIMAL, 20},
        {TR_KILL_ANIMAL, "ưʪÇÜÇÜÂÇ", 5, TR_SLAY_ANIMAL, 60},
        {TR_SLAY_UNDEAD, "ÉÔ»àÇÜÂÇ", 5, TR_SLAY_UNDEAD, 20},
        {TR_KILL_UNDEAD, "ÉÔ»àÇÜÇÜÂÇ", 5, TR_SLAY_UNDEAD, 60},
        {TR_SLAY_DEMON, "°­ËâÇÜÂÇ", 5, TR_SLAY_DEMON, 20},
        {TR_KILL_DEMON, "°­ËâÇÜÇÜÂÇ", 5, TR_SLAY_DEMON, 60},
        {TR_SLAY_ORC, "¥ª¡¼¥¯ÇÜÂÇ", 5, TR_SLAY_ORC, 15},
        {TR_KILL_ORC, "¥ª¡¼¥¯ÇÜÇÜÂÇ", 5, TR_SLAY_ORC, 60},
        {TR_SLAY_TROLL, "¥È¥í¥ëÇÜÂÇ", 5, TR_SLAY_TROLL, 15},
        {TR_KILL_TROLL, "¥È¥í¥ëÇÜÇÜÂÇ", 5, TR_SLAY_TROLL, 60},
        {TR_SLAY_GIANT, "µð¿ÍÇÜÂÇ", 5, TR_SLAY_GIANT, 20},
        {TR_KILL_GIANT, "µð¿ÍÇÜÇÜÂÇ", 5, TR_SLAY_GIANT, 60},       
        {TR_SLAY_DRAGON, "εÇÜÂÇ", 5, TR_SLAY_DRAGON, 20},
        {TR_KILL_DRAGON, "εÇÜÇÜÂÇ", 5, TR_SLAY_DRAGON, 60},
        {TR_SLAY_HUMAN, "¿Í´ÖÇÜÂÇ", 5, TR_SLAY_HUMAN, 20},
        {TR_KILL_HUMAN, "¿Í´ÖÇÜÇÜÂÇ", 5, TR_SLAY_HUMAN, 60},

        {TR_ESP_ANIMAL, "ưʪESP", 6, TR_SLAY_ANIMAL, 40},
        {TR_ESP_UNDEAD, "ÉÔ»àESP", 6, TR_SLAY_UNDEAD, 40}, 
        {TR_ESP_DEMON, "°­ËâESP", 6, TR_SLAY_DEMON, 40},       
        {TR_ESP_ORC, "¥ª¡¼¥¯ESP", 6, TR_SLAY_ORC, 40},     
        {TR_ESP_TROLL, "¥È¥í¥ëESP", 6, TR_SLAY_TROLL, 40},   
        {TR_ESP_GIANT, "µð¿ÍESP", 6, TR_SLAY_GIANT, 40},       
        {TR_ESP_DRAGON, "εESP", 6, TR_SLAY_DRAGON, 40},
        {TR_ESP_HUMAN, "¿Í´ÖESP", 6, TR_SLAY_HUMAN, 40},

        {ESSENCE_ATTACK, "¹¶·â", 10, TR_ES_ATTACK, 30},
        {ESSENCE_AC, "Ëɸæ", 10, TR_ES_AC, 15},
        {ESSENCE_TMP_RES_ACID, "»ÀÂÑÀ­È¯Æ°", 7, TR_RES_ACID, 50},
        {ESSENCE_TMP_RES_ELEC, "ÅÅ·âÂÑÀ­È¯Æ°", 7, TR_RES_ELEC, 50},
        {ESSENCE_TMP_RES_FIRE, "²Ð±êÂÑÀ­È¯Æ°", 7, TR_RES_FIRE, 50},
        {ESSENCE_TMP_RES_COLD, "Î䵤ÂÑÀ­È¯Æ°", 7, TR_RES_COLD, 50},
        {ESSENCE_SH_FIRE, "²Ð±ê¥ª¡¼¥é", 7, -1, 50},
        {ESSENCE_SH_ELEC, "Åŷ⥪¡¼¥é", 7, -1, 50},
        {ESSENCE_SH_COLD, "Î䵤¥ª¡¼¥é", 7, -1, 50},
        {ESSENCE_RESISTANCE, "Á´ÂÑÀ­", 2, -1, 150},
        {ESSENCE_SUSTAIN, "ÁõÈ÷ÊÝ»ý", 10, -1, 10},
        {ESSENCE_SLAY_GLOVE, "»¦Ù¤¤Î¾®¼ê", 1, TR_ES_ATTACK, 200},

        {-1, NULL, 0, -1, 0}
};
#else
static essence_type essence_info[] = 
{
        {TR_STR, "strength", 4, TR_STR, 20},
        {TR_INT, "intelligence", 4, TR_INT, 20},
        {TR_WIS, "wisdom", 4, TR_WIS, 20},
        {TR_DEX, "dexterity", 4, TR_DEX, 20},
        {TR_CON, "constitution", 4, TR_CON, 20},
        {TR_CHR, "charisma", 4, TR_CHR, 20},
        {TR_MAGIC_MASTERY, "magic mastery", 4, TR_MAGIC_MASTERY, 20},
        {TR_STEALTH, "stealth", 4, TR_STEALTH, 40},
        {TR_SEARCH, "serching", 4, TR_SEARCH, 15},
        {TR_INFRA, "infravision", 4, TR_INFRA, 15},
        {TR_TUNNEL, "digging", 4, TR_TUNNEL, 15},
        {TR_SPEED, "speed", 4, TR_SPEED, 12},
        {TR_BLOWS, "extra attack", 1, TR_BLOWS, 20},
        {TR_CHAOTIC, "chaos brand", 1, TR_CHAOTIC, 15},
        {TR_VAMPIRIC, "vampiric brand", 1, TR_VAMPIRIC, 60},
        {TR_IMPACT, "quake activation", 7, TR_IMPACT, 15},
        {TR_BRAND_POIS, "poison brand", 1, TR_BRAND_POIS, 20},
        {TR_BRAND_ACID, "acid brand", 1, TR_BRAND_ACID, 20},
        {TR_BRAND_ELEC, "electric brand", 1, TR_BRAND_ELEC, 20},
        {TR_BRAND_FIRE, "fire brand", 1, TR_BRAND_FIRE, 20},
        {TR_BRAND_COLD, "cold brand", 1, TR_BRAND_COLD, 20},
        {TR_SUST_STR, "sustain strength", 3, TR_SUST_STR, 15},
        {TR_SUST_INT, "sustain intelligence", 3, TR_SUST_STR, 15},
        {TR_SUST_WIS, "sustain wisdom", 3, TR_SUST_STR, 15},
        {TR_SUST_DEX, "sustain dexterity", 3, TR_SUST_STR, 15},
        {TR_SUST_CON, "sustain constitution", 3, TR_SUST_STR, 15},
        {TR_SUST_CHR, "sustain charisma", 3, TR_SUST_STR, 15},
        {TR_IM_ACID, "acid immunity", 2, TR_IM_ACID, 20},
        {TR_IM_ELEC, "electric immunity", 2, TR_IM_ACID, 20},
        {TR_IM_FIRE, "fire immunity", 2, TR_IM_ACID, 20},
        {TR_IM_COLD, "cold immunity", 2, TR_IM_ACID, 20},
        {TR_REFLECT, "reflection", 2, TR_REFLECT, 20},
        {TR_FREE_ACT, "free action", 3, TR_FREE_ACT, 20},
        {TR_HOLD_EXP, "hold experience", 3, TR_HOLD_EXP, 20},
        {TR_RES_ACID, "resistance to acid", 2, TR_RES_ACID, 15},
        {TR_RES_ELEC, "resistance to electric", 2, TR_RES_ELEC, 15},
        {TR_RES_FIRE, "resistance to fire", 2, TR_RES_FIRE, 15},
        {TR_RES_COLD, "resistance to cold", 2, TR_RES_COLD, 15},
        {TR_RES_POIS, "resistance to poison", 2, TR_RES_POIS, 25},
        {TR_RES_FEAR, "resistance to fear", 2, TR_RES_FEAR, 20},
        {TR_RES_LITE, "resistance to light", 2, TR_RES_LITE, 20},
        {TR_RES_DARK, "resistance to dark", 2, TR_RES_DARK, 20},
        {TR_RES_BLIND, "resistance to blind", 2, TR_RES_BLIND, 20},
        {TR_RES_CONF, "resistance to confusion", 2, TR_RES_CONF, 20},
        {TR_RES_SOUND, "resistance to sound", 2, TR_RES_SOUND, 20},
        {TR_RES_SHARDS, "resistance to shard", 2, TR_RES_SHARDS, 20},
        {TR_RES_NETHER, "resistance to nether", 2, TR_RES_NETHER, 20},
        {TR_RES_NEXUS, "resistance to nexus", 2, TR_RES_NEXUS, 20},
        {TR_RES_CHAOS, "resistance to chaos", 2, TR_RES_CHAOS, 20},
        {TR_RES_DISEN, "resistance to disenchantment", 2, TR_RES_DISEN, 20},
        {TR_SH_FIRE, "", 0, -2, 0},
        {TR_SH_ELEC, "", 0, -2, 0},
        {TR_SH_COLD, "", 0, -2, 0},
        {TR_NO_MAGIC, "anti magic", 3, TR_NO_MAGIC, 15},
        {TR_WARNING, "warning", 3, TR_WARNING, 20},
        {TR_LEVITATION, "levitation", 3, TR_LEVITATION, 20},
        {TR_LITE_1, "permanent light", 3, TR_LITE_1, 15},
        {TR_LITE_2, "", 0, -2, 0},
        {TR_LITE_3, "", 0, -2, 0},
        {TR_SEE_INVIS, "see invisible", 3, TR_SEE_INVIS, 20},
        {TR_TELEPATHY, "telepathy", 6, TR_TELEPATHY, 15},
        {TR_SLOW_DIGEST, "slow digestion", 3, TR_SLOW_DIGEST, 15},
        {TR_REGEN, "regeneration", 3, TR_REGEN, 20},
        {TR_TELEPORT, "teleport", 3, TR_TELEPORT, 25},

        {TR_SLAY_EVIL, "slay evil", 5, TR_SLAY_EVIL, 100},
        {TR_SLAY_ANIMAL, "slay animal", 5, TR_SLAY_ANIMAL, 20},
        {TR_KILL_ANIMAL, "kill animal", 5, TR_SLAY_ANIMAL, 60},
        {TR_KILL_EVIL, "kill evil", 0, TR_SLAY_EVIL, 60},
        {TR_SLAY_UNDEAD, "slay undead", 5, TR_SLAY_UNDEAD, 20},
        {TR_KILL_UNDEAD, "kill undead", 5, TR_SLAY_UNDEAD, 60},
        {TR_SLAY_DEMON, "slay demon", 5, TR_SLAY_DEMON, 20},
        {TR_KILL_DEMON, "kill demon", 5, TR_SLAY_DEMON, 60},
        {TR_SLAY_ORC, "slay orc", 5, TR_SLAY_ORC, 15},
        {TR_KILL_ORC, "kill orc", 5, TR_SLAY_ORC, 60},
        {TR_SLAY_TROLL, "slay troll", 5, TR_SLAY_TROLL, 15},
        {TR_KILL_TROLL, "kill troll", 5, TR_SLAY_TROLL, 60},
        {TR_SLAY_GIANT, "slay giant", 5, TR_SLAY_GIANT, 20},
        {TR_KILL_GIANT, "kill giant", 5, TR_SLAY_GIANT, 60},       
        {TR_SLAY_DRAGON, "slay dragon", 5, TR_SLAY_DRAGON, 20},
        {TR_KILL_DRAGON, "kill dragon", 5, TR_SLAY_DRAGON, 60},
        {TR_SLAY_HUMAN, "slay human", 5, TR_SLAY_HUMAN, 20},
        {TR_KILL_HUMAN, "kill human", 5, TR_SLAY_HUMAN, 60},

        {TR_ESP_ANIMAL, "sense animal", 6, TR_SLAY_ANIMAL, 40},
        {TR_ESP_UNDEAD, "sense undead", 6, TR_SLAY_UNDEAD, 40}, 
        {TR_ESP_DEMON, "sense demon", 6, TR_SLAY_DEMON, 40},       
        {TR_ESP_ORC, "sense orc", 6, TR_SLAY_ORC, 40},     
        {TR_ESP_TROLL, "sense troll", 6, TR_SLAY_TROLL, 40},   
        {TR_ESP_GIANT, "sense giant", 6, TR_SLAY_GIANT, 40},       
        {TR_ESP_DRAGON, "sense dragon", 6, TR_SLAY_DRAGON, 40},
        {TR_ESP_HUMAN, "sense human", 6, TR_SLAY_HUMAN, 40},

        {ESSENCE_ATTACK, "weapon enchant", 10, TR_ES_ATTACK, 30},
        {ESSENCE_AC, "armor enchant", 10, TR_ES_AC, 15},
        {ESSENCE_TMP_RES_ACID, "resist acid activation", 7, TR_RES_ACID, 50},
        {ESSENCE_TMP_RES_ELEC, "resist electricity activation", 7, TR_RES_ELEC, 50},
        {ESSENCE_TMP_RES_FIRE, "resist fire activation", 7, TR_RES_FIRE, 50},
        {ESSENCE_TMP_RES_COLD, "resist cold activation", 7, TR_RES_COLD, 50},
        {ESSENCE_SH_FIRE, "fiery sheath", 7, -1, 50},
        {ESSENCE_SH_ELEC, "electric sheath", 7, -1, 50},
        {ESSENCE_SH_COLD, "sheath of coldness", 7, -1, 50},
        {ESSENCE_RESISTANCE, "resistance", 2, -1, 150},
        {ESSENCE_SUSTAIN, "elements proof", 10, -1, 10},
        {ESSENCE_SLAY_GLOVE, "gauntlets of slaying", 1, TR_ES_ATTACK, 200},

        {-1, NULL, 0, -1, 0}
};
#endif


/*!
 * ¥¨¥Ã¥»¥ó¥¹Ì¾¥Æ¡¼¥Ö¥ë / Essense names for Weapon smith
 */
#ifdef JP
cptr essence_name[] = 
{
        "ÏÓÎÏ",
        "ÃÎǽ",
        "¸­¤µ",
        "´ïÍѤµ",
        "Âѵ×ÎÏ",
        "Ì¥ÎÏ",
        "ËâÎÏ»ÙÇÛ",
        "",
        "±£Ì©",
        "õº÷",
        "ÀÖ³°Àþ»ëÎÏ",
        "ºÎ·¡",
        "¥¹¥Ô¡¼¥É",
        "Äɲù¶·â",
        "¥«¥ª¥¹¹¶·â",
        "µÛ·ì¹¶·â",
        "ưʪÇÜÂÇ",
        "¼Ù°­ÇÜÂÇ",
        "ÉÔ»àÇÜÂÇ",
        "°­ËâÇÜÂÇ",
        "¥ª¡¼¥¯ÇÜÂÇ",
        "¥È¥í¥ëÇÜÂÇ",
        "µð¿ÍÇÜÂÇ",
        "εÇÜÂÇ",
        "",
        "",
        "ÃÏ¿Ì",
        "ÆÇ»¦",
        "Íϲò",
        "ÅÅ·â",
        "¾Æ´þ",
        "Åà·ë",
        "ǽÎÏ°Ý»ý",
        "",
        "",
        "",
        "",
        "",
        "",
        "",
        "ÌȱÖ",
        "",
        "",
        "",
        "",
        "È¿¼Í",
        "ËãáãÃΤ餺",
        "·Ð¸³ÃÍ°Ý»ý",
        "ÂÑ»À",
        "ÂÑÅÅ·â",
        "ÂѲбê",
        "ÂÑÎ䵤",
        "ÂÑÆÇ",
        "ÂѶ²ÉÝ",
        "ÂÑÁ®¸÷",
        "ÂѰŹõ",
        "ÂÑÌÕÌÜ",
        "ÂѺ®Íð",
        "Âѹ첻",
        "ÂÑÇËÊÒ",
        "ÂÑÃϹö",
        "ÂÑ°ø²Ìº®Íð",
        "ÂÑ¥«¥ª¥¹",
        "ÂÑÎô²½",
        "",
        "",
        "¿Í´ÖÇÜÂÇ",
        "",
        "",
        "È¿ËâË¡",
        "",
        "",
        "·Ù¹ð",
        "",
        "",
        "",
        "ÉâÍ·",
        "±Êµ×¸÷¸»",
        "²Ä»ëÆ©ÌÀ",
        "¥Æ¥ì¥Ñ¥·¡¼",
        "Ãپò½",
        "µÞ®²óÉü",
        "",
        "",
        "",
        "",
        "",
        "",
        "",
        "",
        "¥Æ¥ì¥Ý¡¼¥È",
        "",
        "",
        "¹¶·â",
        "Ëɸæ",

        NULL
};

#else

static cptr essence_name[] = 
{
        "strength",
        "intelligen.",
        "wisdom",
        "dexterity",
        "constitut.",
        "charisma",
        "magic mast.",
        "",
        "stealth",
        "serching",
        "infravision",
        "digging",
        "speed",
        "extra atk",
        "chaos brand",
        "vampiric",
        "slay animal",
        "slay evil",
        "slay undead",
        "slay demon",
        "slay orc",
        "slay troll",
        "slay giant",
        "slay dragon",
        "",
        "",
        "quake",
        "pois. brand",
        "acid brand",
        "elec. brand",
        "fire brand",
        "cold brand",
        "sustain",
        "",
        "",
        "",
        "",
        "",
        "",
        "",
        "immunity",
        "",
        "",
        "",
        "",
        "reflection",
        "free action",
        "hold exp",
        "res. acid",
        "res. elec.",
        "res. fire",
        "res. cold",
        "res. poison",
        "res. fear",
        "res. light",
        "res. dark",
        "res. blind",
        "res.confuse",
        "res. sound",
        "res. shard",
        "res. nether",
        "res. nexus",
        "res. chaos",
        "res. disen.",
        "",
        "",
        "slay human",
        "",
        "",
        "anti magic",
        "",
        "",
        "warning",
        "",
        "",
        "",
        "levitation",
        "perm. light",
        "see invis.",
        "telepathy",
        "slow dige.",
        "regen.",
        "",
        "",
        "",
        "",
        "",
        "",
        "",
        "",
        "teleport",
        "",
        "",
        "weapon enc.",
        "armor enc.",

        NULL
};
#endif

/*!
 * @brief ½ê»ý¤·¤Æ¤¤¤ë¥¨¥Ã¥»¥ó¥¹°ìÍ÷¤òɽ¼¨¤¹¤ë
 * @return ¤Ê¤·
 */
static void display_essence(void)
{
        int i, num = 0;

        screen_save();
        for (i = 1; i < 22; i++)
        {
                prt("",i,0);
        }
#ifdef JP
        prt("¥¨¥Ã¥»¥ó¥¹   ¸Ä¿ô     ¥¨¥Ã¥»¥ó¥¹   ¸Ä¿ô     ¥¨¥Ã¥»¥ó¥¹   ¸Ä¿ô", 1, 8);
#else
        prt("Essence      Num      Essence      Num      Essence      Num ", 1, 8);
#endif
        for (i = 0; essence_name[i]; i++)
        {
                if (!essence_name[i][0]) continue;
                prt(format("%-11s %5d", essence_name[i], p_ptr->magic_num1[i]), 2+num%21, 8+num/21*22);
                num++;
        }
#ifdef JP
        prt("¸½ºß½ê»ý¤·¤Æ¤¤¤ë¥¨¥Ã¥»¥ó¥¹", 0, 0);
#else
        prt("List of all essences you have.", 0, 0);
#endif
        (void)inkey();
        screen_load();
        return;
}

/*!
 * @brief ¥¨¥Ã¥»¥ó¥¹¤ÎÃê½Ð½èÍý
 * @return ¤Ê¤·
 */
static void drain_essence(void)
{
        int drain_value[sizeof(p_ptr->magic_num1) / sizeof(s32b)];
        int i, item;
        int dec = 4;
        bool observe = FALSE;
        int old_ds, old_dd, old_to_h, old_to_d, old_ac, old_to_a, old_pval, old_name2, old_timeout;
        u32b old_flgs[TR_FLAG_SIZE], new_flgs[TR_FLAG_SIZE];
        object_type *o_ptr;
        cptr            q, s;
        byte iy, ix, marked, number;
        s16b next_o_idx, weight;

        for (i = 0; i < sizeof(drain_value) / sizeof(int); i++)
                drain_value[i] = 0;

        item_tester_hook = object_is_weapon_armour_ammo;
        item_tester_no_ryoute = TRUE;

        /* Get an item */
#ifdef JP
        q = "¤É¤Î¥¢¥¤¥Æ¥à¤«¤éÃê½Ð¤·¤Þ¤¹¤«¡©";
        s = "Ãê½Ð¤Ç¤­¤ë¥¢¥¤¥Æ¥à¤¬¤¢¤ê¤Þ¤»¤ó¡£";
#else
        q = "Extract from which item? ";
        s = "You have nothing you can extract from.";
#endif

        if (!get_item(&item, q, s, (USE_INVEN | USE_FLOOR))) return;

        /* Get the item (in the pack) */
        if (item >= 0)
        {
                o_ptr = &inventory[item];
        }

        /* Get the item (on the floor) */
        else
        {
                o_ptr = &o_list[0 - item];
        }

        if (object_is_known(o_ptr) && !object_is_nameless(o_ptr))
        {
                char o_name[MAX_NLEN];
                object_desc(o_name, o_ptr, (OD_OMIT_PREFIX | OD_NAME_ONLY));
#ifdef JP
                if (!get_check(format("ËÜÅö¤Ë%s¤«¤éÃê½Ð¤·¤Æ¤è¤í¤·¤¤¤Ç¤¹¤«¡©", o_name))) return;
#else
                if (!get_check(format("Really extract from %s? ", o_name))) return;
#endif
        }

        energy_use = 100;

        object_flags(o_ptr, old_flgs);
        if (have_flag(old_flgs, TR_KILL_DRAGON)) add_flag(old_flgs, TR_SLAY_DRAGON);
        if (have_flag(old_flgs, TR_KILL_ANIMAL)) add_flag(old_flgs, TR_SLAY_ANIMAL);
        if (have_flag(old_flgs, TR_KILL_EVIL)) add_flag(old_flgs, TR_SLAY_EVIL);
        if (have_flag(old_flgs, TR_KILL_UNDEAD)) add_flag(old_flgs, TR_SLAY_UNDEAD);
        if (have_flag(old_flgs, TR_KILL_DEMON)) add_flag(old_flgs, TR_SLAY_DEMON);
        if (have_flag(old_flgs, TR_KILL_ORC)) add_flag(old_flgs, TR_SLAY_ORC);
        if (have_flag(old_flgs, TR_KILL_TROLL)) add_flag(old_flgs, TR_SLAY_TROLL);
        if (have_flag(old_flgs, TR_KILL_GIANT)) add_flag(old_flgs, TR_SLAY_GIANT);
        if (have_flag(old_flgs, TR_KILL_HUMAN)) add_flag(old_flgs, TR_SLAY_HUMAN);

        old_to_a = o_ptr->to_a;
        old_ac = o_ptr->ac;
        old_to_h = o_ptr->to_h;
        old_to_d = o_ptr->to_d;
        old_ds = o_ptr->ds;
        old_dd = o_ptr->dd;
        old_pval = o_ptr->pval;
        old_name2 = o_ptr->name2;
        old_timeout = o_ptr->timeout;
        if (o_ptr->curse_flags & (TRC_CURSED | TRC_HEAVY_CURSE | TRC_PERMA_CURSE)) dec--;
        if (have_flag(old_flgs, TR_ADD_L_CURSE)) dec--;
        if (have_flag(old_flgs, TR_ADD_H_CURSE)) dec--;
        if (have_flag(old_flgs, TR_AGGRAVATE)) dec--;
        if (have_flag(old_flgs, TR_NO_TELE)) dec--;
        if (have_flag(old_flgs, TR_DRAIN_EXP)) dec--;
        if (have_flag(old_flgs, TR_DRAIN_HP)) dec--;
        if (have_flag(old_flgs, TR_DRAIN_MANA)) dec--;
        if (have_flag(old_flgs, TR_CALL_ANIMAL)) dec--;
        if (have_flag(old_flgs, TR_CALL_DEMON)) dec--;
        if (have_flag(old_flgs, TR_CALL_DRAGON)) dec--;
        if (have_flag(old_flgs, TR_CALL_UNDEAD)) dec--;
        if (have_flag(old_flgs, TR_COWARDICE)) dec--;
        if (have_flag(old_flgs, TR_LOW_MELEE)) dec--;
        if (have_flag(old_flgs, TR_LOW_AC)) dec--;
        if (have_flag(old_flgs, TR_LOW_MAGIC)) dec--;
        if (have_flag(old_flgs, TR_FAST_DIGEST)) dec--;
        if (have_flag(old_flgs, TR_SLOW_REGEN)) dec--;
        if (have_flag(old_flgs, TR_TY_CURSE)) dec--;
        
        iy = o_ptr->iy;
        ix = o_ptr->ix;
        next_o_idx = o_ptr->next_o_idx;
        marked = o_ptr->marked;
        weight = o_ptr->weight;
        number = o_ptr->number;

        object_prep(o_ptr, o_ptr->k_idx);

        o_ptr->iy=iy;
        o_ptr->ix=ix;
        o_ptr->next_o_idx=next_o_idx;
        o_ptr->marked=marked;
        o_ptr->number = number;
        if (o_ptr->tval == TV_DRAG_ARMOR) o_ptr->timeout = old_timeout;
        if (item >= 0) p_ptr->total_weight += (o_ptr->weight*o_ptr->number - weight*number);
        o_ptr->ident |= (IDENT_MENTAL);
        object_aware(o_ptr);
        object_known(o_ptr);

        object_flags(o_ptr, new_flgs);

        for (i = 0; essence_info[i].add_name; i++)
        {
                essence_type *es_ptr = &essence_info[i];
                int pval = 0;

                if (es_ptr->add < TR_FLAG_MAX && is_pval_flag(es_ptr->add) && old_pval)
                        pval = (have_flag(new_flgs, es_ptr->add)) ? old_pval - o_ptr->pval : old_pval;

                if (es_ptr->add < TR_FLAG_MAX &&
                    (!have_flag(new_flgs, es_ptr->add) || pval) &&
                    have_flag(old_flgs, es_ptr->add))
                {
                        if (pval)
                        {
                                drain_value[es_ptr->essence] += 10 * pval;
                        }
                        else if (es_ptr->essence != -2)
                        {
                                drain_value[es_ptr->essence] += 10;
                        }
                        else if (es_ptr->add == TR_SH_FIRE)
                        {
                                drain_value[TR_BRAND_FIRE] += 10;
                                drain_value[TR_RES_FIRE] += 10;
                        }
                        else if (es_ptr->add == TR_SH_ELEC)
                        {
                                drain_value[TR_BRAND_ELEC] += 10;
                                drain_value[TR_RES_ELEC] += 10;
                        }
                        else if (es_ptr->add == TR_SH_COLD)
                        {
                                drain_value[TR_BRAND_COLD] += 10;
                                drain_value[TR_RES_COLD] += 10;
                        }
                        else if (es_ptr->add == TR_LITE_2)
                        {
                                drain_value[TR_LITE_1] += 20;
                        }
                        else if (es_ptr->add == TR_LITE_3)
                        {
                                drain_value[TR_LITE_1] += 30;
                        }
                }
        }

        if ((have_flag(old_flgs, TR_FORCE_WEAPON)) && !(have_flag(new_flgs, TR_FORCE_WEAPON)))
        {
                drain_value[TR_INT] += 5;
                drain_value[TR_WIS] += 5;
        }
        if ((have_flag(old_flgs, TR_VORPAL)) && !(have_flag(new_flgs, TR_VORPAL)))
        {
                drain_value[TR_BRAND_POIS] += 5;
                drain_value[TR_BRAND_ACID] += 5;
                drain_value[TR_BRAND_ELEC] += 5;
                drain_value[TR_BRAND_FIRE] += 5;
                drain_value[TR_BRAND_COLD] += 5;
        }
        if ((have_flag(old_flgs, TR_DEC_MANA)) && !(have_flag(new_flgs, TR_DEC_MANA)))
        {
                drain_value[TR_INT] += 10;
        }
        if ((have_flag(old_flgs, TR_XTRA_MIGHT)) && !(have_flag(new_flgs, TR_XTRA_MIGHT)))
        {
                drain_value[TR_STR] += 10;
        }
        if ((have_flag(old_flgs, TR_XTRA_SHOTS)) && !(have_flag(new_flgs, TR_XTRA_SHOTS)))
        {
                drain_value[TR_DEX] += 10;
        }
        if (old_name2 == EGO_2WEAPON)
        {
                drain_value[TR_DEX] += 20;
        }
        if (object_is_weapon_ammo(o_ptr))
        {
                if (old_ds > o_ptr->ds) drain_value[TR_ES_ATTACK] += (old_ds-o_ptr->ds)*10;

                if (old_dd > o_ptr->dd) drain_value[TR_ES_ATTACK] += (old_dd-o_ptr->dd)*10;
        }
        if (old_to_h > o_ptr->to_h) drain_value[TR_ES_ATTACK] += (old_to_h-o_ptr->to_h)*10;
        if (old_to_d > o_ptr->to_d) drain_value[TR_ES_ATTACK] += (old_to_d-o_ptr->to_d)*10;
        if (old_ac > o_ptr->ac) drain_value[TR_ES_AC] += (old_ac-o_ptr->ac)*10;
        if (old_to_a > o_ptr->to_a) drain_value[TR_ES_AC] += (old_to_a-o_ptr->to_a)*10;

        for (i = 0; i < sizeof(drain_value) / sizeof(int); i++)
        {
                drain_value[i] *= number;
                drain_value[i] = drain_value[i] * dec / 4;
                drain_value[i] = MAX(drain_value[i], 0);
                if ((o_ptr->tval >= TV_SHOT) && (o_ptr->tval <= TV_BOLT)) drain_value[i] /= 10;
                if (drain_value[i])
                {
                        observe = TRUE;
                }
        }
        if (!observe)
        {
                msg_print(_("¥¨¥Ã¥»¥ó¥¹¤ÏÃê½Ð¤Ç¤­¤Þ¤»¤ó¤Ç¤·¤¿¡£", "You were not able to extract any essence."));
        }
        else
        {
                msg_print(_("Ãê½Ð¤·¤¿¥¨¥Ã¥»¥ó¥¹:", "Extracted essences:"));

                for (i = 0; essence_name[i]; i++)
                {
                        if (!essence_name[i][0]) continue;
                        if (!drain_value[i]) continue;

                        p_ptr->magic_num1[i] += drain_value[i];
                        p_ptr->magic_num1[i] = MIN(20000, p_ptr->magic_num1[i]);
                        msg_print(NULL);
                        msg_format("%s...%d%s", essence_name[i], drain_value[i], _("¡£", ". "));
                }
        }

        /* Apply autodestroy/inscription to the drained item */
        autopick_alter_item(item, TRUE);

        /* Combine the pack */
        p_ptr->notice |= (PN_COMBINE | PN_REORDER);

        /* Window stuff */
        p_ptr->window |= (PW_INVEN);
}

/*!
 * @brief Éղ乤륨¥Ã¥»¥ó¥¹¤ÎÂçÊ̤òÁªÂò¤¹¤ë
 * @return Áª¤ó¤À¥¨¥Ã¥»¥ó¥¹¤ÎÂçÊÌID
 */
static int choose_essence(void)
{
        int mode = 0;
        char choice;
        int menu_line = (use_menu ? 1 : 0);

#ifdef JP
        cptr menu_name[] = {
                "Éð´ï°À­", 
                "ÂÑÀ­",
                "ǽÎÏ",
                "¿ôÃÍ",
                "¥¹¥ì¥¤",
                "ESP",
                "¤½¤Î¾"
        };
#else
        cptr menu_name[] = {
                "Brand weapon",
                "Resistance",
                "Ability",
                "Magic number", 
                "Slay",
                "ESP",
                "Others"
        };
#endif
        const int mode_max = 7;

#ifdef ALLOW_REPEAT
        if (repeat_pull(&mode) && 1 <= mode && mode <= mode_max)
                return mode;
        mode = 0;
#endif /* ALLOW_REPEAT */

        if (use_menu)
        {
                screen_save();

                while(!mode)
                {
                        int i;
                        for (i = 0; i < mode_max; i++)
#ifdef JP
                                prt(format(" %s %s", (menu_line == 1+i) ? "¡Õ" : "  ", menu_name[i]), 2 + i, 14);
                        prt("¤É¤Î¼ïÎà¤Î¥¨¥Ã¥»¥ó¥¹Éղäò¹Ô¤¤¤Þ¤¹¤«¡©", 0, 0);
#else
                                prt(format(" %s %s", (menu_line == 1+i) ? "> " : "  ", menu_name[i]), 2 + i, 14);
                        prt("Choose from menu.", 0, 0);
#endif

                        choice = inkey();
                        switch(choice)
                        {
                        case ESCAPE:
                        case 'z':
                        case 'Z':
                                screen_load();
                                return 0;
                        case '2':
                        case 'j':
                        case 'J':
                                menu_line++;
                                break;
                        case '8':
                        case 'k':
                        case 'K':
                                menu_line += mode_max - 1;
                                break;
                        case '\r':
                        case '\n':
                        case 'x':
                        case 'X':
                                mode = menu_line;
                                break;
                        }
                        if (menu_line > mode_max) menu_line -= mode_max;
                }
                screen_load();
        }
        else
        {
                screen_save();
                while (!mode)
                {
                        int i;

                        for (i = 0; i < mode_max; i++)
                                prt(format("  %c) %s", 'a' + i, menu_name[i]), 2 + i, 14);

#ifdef JP
                        if (!get_com("²¿¤òÉղä·¤Þ¤¹¤«:", &choice, TRUE))
#else
                        if (!get_com("Command :", &choice, TRUE))
#endif
                        {
                                screen_load();
                                return 0;
                        }

                        if (isupper(choice)) choice = tolower(choice);

                        if ('a' <= choice && choice <= 'a' + (char)mode_max - 1)
                                mode = (int)choice - 'a' + 1;
                }
                screen_load();
        }

#ifdef ALLOW_REPEAT
        repeat_push(mode);
#endif /* ALLOW_REPEAT */
        return mode;
}

/*!
 * @brief ¥¨¥Ã¥»¥ó¥¹¤ò¼ÂºÝ¤ËÉղ乤ë
 * @param mode ¥¨¥Ã¥»¥ó¥¹¤ÎÂçÊÌID
 * @return ¤Ê¤·
 */
static void add_essence(int mode)
{
        int item, max_num = 0;
        int i;
        bool flag,redraw;
        char choice;
        cptr            q, s;
        object_type *o_ptr;
        int ask = TRUE;
        char out_val[160];
        int num[22];
        char o_name[MAX_NLEN];
        int use_essence;
        essence_type *es_ptr;

        int menu_line = (use_menu ? 1 : 0);

        for (i = 0; essence_info[i].add_name; i++)
        {
                es_ptr = &essence_info[i];

                if (es_ptr->type != mode) continue;
                num[max_num++] = i;
        }

#ifdef ALLOW_REPEAT
        if (!repeat_pull(&i) || i<0 || i>=max_num)
        {
#endif /* ALLOW_REPEAT */


        /* Nothing chosen yet */
        flag = FALSE;

        /* No redraw yet */
        redraw = FALSE;

        /* Build a prompt */
#ifdef JP
        (void) strnfmt(out_val, 78, "('*'¤Ç°ìÍ÷, ESC¤ÇÃæÃÇ) ¤É¤ÎǽÎϤòÉղä·¤Þ¤¹¤«¡©");
#else
        (void)strnfmt(out_val, 78, "(*=List, ESC=exit) Add which ability? ");
#endif
        if (use_menu) screen_save();

        /* Get a spell from the user */

        choice = (always_show_list || use_menu) ? ESCAPE:1;
        while (!flag)
        {
                bool able[22];
                if( choice==ESCAPE ) choice = ' '; 
                else if( !get_com(out_val, &choice, FALSE) )break; 

                if (use_menu && choice != ' ')
                {
                        switch(choice)
                        {
                                case '0':
                                {
                                        screen_load();
                                        return;
                                }

                                case '8':
                                case 'k':
                                case 'K':
                                {
                                        menu_line += (max_num-1);
                                        break;
                                }

                                case '2':
                                case 'j':
                                case 'J':
                                {
                                        menu_line++;
                                        break;
                                }

                                case '4':
                                case 'h':
                                case 'H':
                                {
                                        menu_line = 1;
                                        break;
                                }
                                case '6':
                                case 'l':
                                case 'L':
                                {
                                        menu_line = max_num;
                                        break;
                                }

                                case 'x':
                                case 'X':
                                case '\r':
                                case '\n':
                                {
                                        i = menu_line - 1;
                                        ask = FALSE;
                                        break;
                                }
                        }
                        if (menu_line > max_num) menu_line -= max_num;
                }
                /* Request redraw */
                if ((choice == ' ') || (choice == '*') || (choice == '?') || (use_menu && ask))
                {
                        /* Show the list */
                        if (!redraw || use_menu)
                        {
                                byte y, x = 10;
                                int ctr;
                                char dummy[80], dummy2[80];
                                byte col;

                                strcpy(dummy, "");

                                /* Show list */
                                redraw = TRUE;

                                /* Save the screen */
                                if (!use_menu) screen_save();

                                for (y = 1; y < 24; y++)
                                        prt("", y, x);

                                /* Print header(s) */
#ifdef JP
                                prt(format("   %-43s %6s/%s", "ǽÎÏ(ɬÍ×¥¨¥Ã¥»¥ó¥¹)", "ɬÍ׿ô", "½ê»ý¿ô"), 1, x);

#else
                                prt(format("   %-43s %6s/%s", "Ability (needed essence)", "Needs", "Possess"), 1, x);
#endif
                                /* Print list */
                                for (ctr = 0; ctr < max_num; ctr++)
                                {
                                        es_ptr = &essence_info[num[ctr]];

                                        if (use_menu)
                                        {
                                                if (ctr == (menu_line-1))
#ifdef JP
                                                        strcpy(dummy, "¡Õ ");
#else
                                                        strcpy(dummy, ">  ");
#endif
                                                else strcpy(dummy, "   ");
                                                
                                        }
                                        /* letter/number for power selection */
                                        else
                                        {
                                                sprintf(dummy, "%c) ",I2A(ctr));
                                        }

                                        strcat(dummy, es_ptr->add_name);

                                        col = TERM_WHITE;
                                        able[ctr] = TRUE;

                                        if (es_ptr->essence != -1)
                                        {
                                                strcat(dummy, format("(%s)", essence_name[es_ptr->essence]));
                                                if (p_ptr->magic_num1[es_ptr->essence] < es_ptr->value) able[ctr] = FALSE;
                                        }
                                        else
                                        {
                                                switch(es_ptr->add)
                                                {
                                                case ESSENCE_SH_FIRE:
#ifdef JP
                                                        strcat(dummy, "(¾Æ´þ+ÂѲбê)");
#else
                                                        strcat(dummy, "(brand fire + res.fire)");
#endif
                                                        if (p_ptr->magic_num1[TR_BRAND_FIRE] < es_ptr->value) able[ctr] = FALSE;
                                                        if (p_ptr->magic_num1[TR_RES_FIRE] < es_ptr->value) able[ctr] = FALSE;
                                                        break;
                                                case ESSENCE_SH_ELEC:
#ifdef JP
                                                        strcat(dummy, "(ÅÅ·â+ÂÑÅÅ·â)");
#else
                                                        strcat(dummy, "(brand elec. + res. elec.)");
#endif
                                                        if (p_ptr->magic_num1[TR_BRAND_ELEC] < es_ptr->value) able[ctr] = FALSE;
                                                        if (p_ptr->magic_num1[TR_RES_ELEC] < es_ptr->value) able[ctr] = FALSE;
                                                        break;
                                                case ESSENCE_SH_COLD:
#ifdef JP
                                                        strcat(dummy, "(Åà·ë+ÂÑÎ䵤)");
#else
                                                        strcat(dummy, "(brand cold + res. cold)");
#endif
                                                        if (p_ptr->magic_num1[TR_BRAND_COLD] < es_ptr->value) able[ctr] = FALSE;
                                                        if (p_ptr->magic_num1[TR_RES_COLD] < es_ptr->value) able[ctr] = FALSE;
                                                        break;
                                                case ESSENCE_RESISTANCE:
#ifdef JP
                                                        strcat(dummy, "(ÂѲбê+ÂÑÎ䵤+ÂÑÅÅ·â+ÂÑ»À)");
#else
                                                        strcat(dummy, "(r.fire+r.cold+r.elec+r.acid)");
#endif
                                                        if (p_ptr->magic_num1[TR_RES_FIRE] < es_ptr->value) able[ctr] = FALSE;
                                                        if (p_ptr->magic_num1[TR_RES_COLD] < es_ptr->value) able[ctr] = FALSE;
                                                        if (p_ptr->magic_num1[TR_RES_ELEC] < es_ptr->value) able[ctr] = FALSE;
                                                        if (p_ptr->magic_num1[TR_RES_ACID] < es_ptr->value) able[ctr] = FALSE;
                                                        break;
                                                case ESSENCE_SUSTAIN:
#ifdef JP
                                                        strcat(dummy, "(ÂѲбê+ÂÑÎ䵤+ÂÑÅÅ·â+ÂÑ»À)");
#else
                                                        strcat(dummy, "(r.fire+r.cold+r.elec+r.acid)");
#endif
                                                        if (p_ptr->magic_num1[TR_RES_FIRE] < es_ptr->value) able[ctr] = FALSE;
                                                        if (p_ptr->magic_num1[TR_RES_COLD] < es_ptr->value) able[ctr] = FALSE;
                                                        if (p_ptr->magic_num1[TR_RES_ELEC] < es_ptr->value) able[ctr] = FALSE;
                                                        if (p_ptr->magic_num1[TR_RES_ACID] < es_ptr->value) able[ctr] = FALSE;
                                                        break;
                                                }
                                        }

                                        if (!able[ctr]) col = TERM_RED;

                                        if (es_ptr->essence != -1)
                                        {
                                                sprintf(dummy2, "%-49s %3d/%d", dummy, es_ptr->value, (int)p_ptr->magic_num1[es_ptr->essence]);
                                        }
                                        else
                                        {
                                                sprintf(dummy2, "%-49s %3d/(\?\?)", dummy, es_ptr->value);
                                        }

                                        c_prt(col, dummy2, ctr+2, x);
                                }
                        }

                        /* Hide the list */
                        else
                        {
                                /* Hide list */
                                redraw = FALSE;

                                /* Restore the screen */
                                screen_load();
                        }

                        /* Redo asking */
                        continue;
                }

                if (!use_menu)
                {
                        /* Note verify */
                        ask = (isupper(choice));

                        /* Lowercase */
                        if (ask) choice = tolower(choice);

                        /* Extract request */
                        i = (islower(choice) ? A2I(choice) : -1);
                }

                /* Totally Illegal */
                if ((i < 0) || (i >= max_num) || !able[i])
                {
                        bell();
                        continue;
                }

                /* Verify it */
                if (ask)
                {
                        char tmp_val[160];

                        /* Prompt */
#ifdef JP
                        (void) strnfmt(tmp_val, 78, "%s¤òÉղä·¤Þ¤¹¤«¡© ", essence_info[num[i]].add_name);
#else
                        (void) strnfmt(tmp_val, 78, "Add the abilitiy of %s? ", essence_info[num[i]].add_name);
#endif

                        /* Belay that order */
                        if (!get_check(tmp_val)) continue;
                }

                /* Stop the loop */
                flag = TRUE;
        }

        /* Restore the screen */
        if (redraw) screen_load();

        if (!flag) return;

#ifdef ALLOW_REPEAT
        repeat_push(i);
        }
#endif /* ALLOW_REPEAT */

        es_ptr = &essence_info[num[i]];

        if (es_ptr->add == ESSENCE_SLAY_GLOVE)
                item_tester_tval = TV_GLOVES;
        else if (mode == 1 || mode == 5)
                item_tester_hook = item_tester_hook_melee_ammo;
        else if (es_ptr->add == ESSENCE_ATTACK)
                item_tester_hook = object_allow_enchant_weapon;
        else if (es_ptr->add == ESSENCE_AC)
                item_tester_hook = object_is_armour;
        else
                item_tester_hook = object_is_weapon_armour_ammo;
        item_tester_no_ryoute = TRUE;

        /* Get an item */
#ifdef JP
        q = "¤É¤Î¥¢¥¤¥Æ¥à¤ò²þÎɤ·¤Þ¤¹¤«¡©";
        s = "²þÎɤǤ­¤ë¥¢¥¤¥Æ¥à¤¬¤¢¤ê¤Þ¤»¤ó¡£";
#else
        q = "Improve which item? ";
        s = "You have nothing to improve.";
#endif

        if (!get_item(&item, q, s, (USE_INVEN | USE_FLOOR))) return;

        /* Get the item (in the pack) */
        if (item >= 0)
        {
                o_ptr = &inventory[item];
        }

        /* Get the item (on the floor) */
        else
        {
                o_ptr = &o_list[0 - item];
        }

        if ((mode != 10) && (object_is_artifact(o_ptr) || object_is_smith(o_ptr)))
        {
#ifdef JP
                msg_print("¤½¤Î¥¢¥¤¥Æ¥à¤Ï¤³¤ì°Ê¾å²þÎɤǤ­¤Ê¤¤¡£");
#else
                msg_print("This item is no more able to be improved.");
#endif
                return;
        }

        object_desc(o_name, o_ptr, (OD_OMIT_PREFIX | OD_NAME_ONLY));

        use_essence = es_ptr->value;
        if ((o_ptr->tval >= TV_SHOT) && (o_ptr->tval <= TV_BOLT)) use_essence = (use_essence+9)/10;
        if (o_ptr->number > 1)
        {
                use_essence *= o_ptr->number;
#ifdef JP
                msg_format("%d¸Ä¤¢¤ë¤Î¤Ç¥¨¥Ã¥»¥ó¥¹¤Ï%dɬÍפǤ¹¡£", o_ptr->number, use_essence);
#else
                msg_format("It will take %d essences.",use_essence);
#endif

        }

        if (es_ptr->essence != -1)
        {
                if (p_ptr->magic_num1[es_ptr->essence] < use_essence)
                {
#ifdef JP
                        msg_print("¥¨¥Ã¥»¥ó¥¹¤¬Â­¤ê¤Ê¤¤¡£");
#else
                        msg_print("You don't have enough essences.");
#endif
                        return;
                }
                if (is_pval_flag(es_ptr->add))
                {
                        if (o_ptr->pval < 0)
                        {
#ifdef JP
                                msg_print("¤³¤Î¥¢¥¤¥Æ¥à¤ÎǽÎϽ¤Àµ¤ò¶¯²½¤¹¤ë¤³¤È¤Ï¤Ç¤­¤Ê¤¤¡£");
#else
                                msg_print("You cannot increase magic number of this item.");
#endif
                                return;
                        }
                        else if (es_ptr->add == TR_BLOWS)
                        {
                                if (o_ptr->pval > 1)
                                {
#ifdef JP
                                        if (!get_check("½¤ÀµÃͤÏ1¤Ë¤Ê¤ê¤Þ¤¹¡£¤è¤í¤·¤¤¤Ç¤¹¤«¡©")) return;
#else
                                        if (!get_check("The magic number of this weapon will become 1. Are you sure? ")) return;
#endif
                                }

                                o_ptr->pval = 1;
#ifdef JP
                                msg_format("¥¨¥Ã¥»¥ó¥¹¤ò%d¸Ä»ÈÍѤ·¤Þ¤¹¡£", use_essence);
#else
                                msg_format("It will take %d essences.", use_essence);
#endif
                        }
                        else if (o_ptr->pval > 0)
                        {
                                use_essence *= o_ptr->pval;
#ifdef JP
                                msg_format("¥¨¥Ã¥»¥ó¥¹¤ò%d¸Ä»ÈÍѤ·¤Þ¤¹¡£", use_essence);
#else
                                msg_format("It will take %d essences.", use_essence);
#endif
                        }
                        else
                        {
                                char tmp[80];
                                char tmp_val[160];
                                int pval;
                                int limit = MIN(5, p_ptr->magic_num1[es_ptr->essence]/es_ptr->value);

#ifdef JP
                                sprintf(tmp, "¤¤¤¯¤ÄÉղä·¤Þ¤¹¤«¡© (1-%d): ", limit);
#else
                                sprintf(tmp, "Enchant how many? (1-%d): ", limit);
#endif
                                strcpy(tmp_val, "1");

                                if (!get_string(tmp, tmp_val, 1)) return;
                                pval = atoi(tmp_val);
                                if (pval > limit) pval = limit;
                                else if (pval < 1) pval = 1;
                                o_ptr->pval += pval;
                                use_essence *= pval;
#ifdef JP
                                msg_format("¥¨¥Ã¥»¥ó¥¹¤ò%d¸Ä»ÈÍѤ·¤Þ¤¹¡£", use_essence);
#else
                                msg_format("It will take %d essences.", use_essence);
#endif
                        }

                        if (p_ptr->magic_num1[es_ptr->essence] < use_essence)
                        {
#ifdef JP
                                msg_print("¥¨¥Ã¥»¥ó¥¹¤¬Â­¤ê¤Ê¤¤¡£");
#else
                                msg_print("You don't have enough essences.");
#endif
                                return;
                        }
                }
                else if (es_ptr->add == ESSENCE_SLAY_GLOVE)
                {
                        char tmp_val[160];
                        int val;
                        int get_to_h, get_to_d;

                        strcpy(tmp_val, "1");
#ifdef JP
                        if (!get_string(format("¤¤¤¯¤ÄÉղä·¤Þ¤¹¤«¡© (1-%d):", p_ptr->lev/7+3), tmp_val, 2)) return;
#else
                        if (!get_string(format("Enchant how many? (1-%d):", p_ptr->lev/7+3), tmp_val, 2)) return;
#endif
                        val = atoi(tmp_val);
                        if (val > p_ptr->lev/7+3) val = p_ptr->lev/7+3;
                        else if (val < 1) val = 1;
                        use_essence *= val;
#ifdef JP
                        msg_format("¥¨¥Ã¥»¥ó¥¹¤ò%d¸Ä»ÈÍѤ·¤Þ¤¹¡£", use_essence);
#else
                        msg_format("It will take %d essences.", use_essence);
#endif
                        if (p_ptr->magic_num1[es_ptr->essence] < use_essence)
                        {
#ifdef JP
                                msg_print("¥¨¥Ã¥»¥ó¥¹¤¬Â­¤ê¤Ê¤¤¡£");
#else
                                msg_print("You don't have enough essences.");
#endif
                                return;
                        }
                        get_to_h = ((val+1)/2+randint0(val/2+1));
                        get_to_d = ((val+1)/2+randint0(val/2+1));
                        o_ptr->xtra4 = (get_to_h<<8)+get_to_d;
                        o_ptr->to_h += get_to_h;
                        o_ptr->to_d += get_to_d;
                }
                p_ptr->magic_num1[es_ptr->essence] -= use_essence;
                if (es_ptr->add == ESSENCE_ATTACK)
                {
                        if ((o_ptr->to_h >= p_ptr->lev/5+5) && (o_ptr->to_d >= p_ptr->lev/5+5))
                        {
#ifdef JP
                                msg_print("²þÎɤ˼ºÇÔ¤·¤¿¡£");
#else
                                msg_print("You failed to enchant.");
#endif
                                energy_use = 100;
                                return;
                        }
                        else
                        {
                                if (o_ptr->to_h < p_ptr->lev/5+5) o_ptr->to_h++;
                                if (o_ptr->to_d < p_ptr->lev/5+5) o_ptr->to_d++;
                        }
                }
                else if (es_ptr->add == ESSENCE_AC)
                {
                        if (o_ptr->to_a >= p_ptr->lev/5+5)
                        {
#ifdef JP
                                msg_print("²þÎɤ˼ºÇÔ¤·¤¿¡£");
#else
                                msg_print("You failed to enchant.");
#endif
                                energy_use = 100;
                                return;
                        }
                        else
                        {
                                if (o_ptr->to_a < p_ptr->lev/5+5) o_ptr->to_a++;
                        }
                }
                else
                {
                        o_ptr->xtra3 = es_ptr->add + 1;
                }
        }
        else
        {
                bool success = TRUE;

                switch(es_ptr->add)
                {
                case ESSENCE_SH_FIRE:
                        if ((p_ptr->magic_num1[TR_BRAND_FIRE] < use_essence) || (p_ptr->magic_num1[TR_RES_FIRE] < use_essence))
                        {
                                success = FALSE;
                                break;
                        }
                        p_ptr->magic_num1[TR_BRAND_FIRE] -= use_essence;
                        p_ptr->magic_num1[TR_RES_FIRE] -= use_essence;
                        break;
                case ESSENCE_SH_ELEC:
                        if ((p_ptr->magic_num1[TR_BRAND_ELEC] < use_essence) || (p_ptr->magic_num1[TR_RES_ELEC] < use_essence))
                        {
                                success = FALSE;
                                break;
                        }
                        p_ptr->magic_num1[TR_BRAND_ELEC] -= use_essence;
                        p_ptr->magic_num1[TR_RES_ELEC] -= use_essence;
                        break;
                case ESSENCE_SH_COLD:
                        if ((p_ptr->magic_num1[TR_BRAND_COLD] < use_essence) || (p_ptr->magic_num1[TR_RES_COLD] < use_essence))
                        {
                                success = FALSE;
                                break;
                        }
                        p_ptr->magic_num1[TR_BRAND_COLD] -= use_essence;
                        p_ptr->magic_num1[TR_RES_COLD] -= use_essence;
                        break;
                case ESSENCE_RESISTANCE:
                case ESSENCE_SUSTAIN:
                        if ((p_ptr->magic_num1[TR_RES_ACID] < use_essence) || (p_ptr->magic_num1[TR_RES_ELEC] < use_essence) || (p_ptr->magic_num1[TR_RES_FIRE] < use_essence) || (p_ptr->magic_num1[TR_RES_COLD] < use_essence))
                        {
                                success = FALSE;
                                break;
                        }
                        p_ptr->magic_num1[TR_RES_ACID] -= use_essence;
                        p_ptr->magic_num1[TR_RES_ELEC] -= use_essence;
                        p_ptr->magic_num1[TR_RES_FIRE] -= use_essence;
                        p_ptr->magic_num1[TR_RES_COLD] -= use_essence;
                        break;
                }
                if (!success)
                {
#ifdef JP
                        msg_print("¥¨¥Ã¥»¥ó¥¹¤¬Â­¤ê¤Ê¤¤¡£");
#else
                        msg_print("You don't have enough essences.");
#endif
                        return;
                }
                if (es_ptr->add == ESSENCE_SUSTAIN)
                {
                        add_flag(o_ptr->art_flags, TR_IGNORE_ACID);
                        add_flag(o_ptr->art_flags, TR_IGNORE_ELEC);
                        add_flag(o_ptr->art_flags, TR_IGNORE_FIRE);
                        add_flag(o_ptr->art_flags, TR_IGNORE_COLD);
                }
                else
                {
                        o_ptr->xtra3 = es_ptr->add + 1;
                }
        }

        energy_use = 100;

#ifdef JP
        msg_format("%s¤Ë%s¤ÎǽÎϤòÉղä·¤Þ¤·¤¿¡£", o_name, es_ptr->add_name);
#else
        msg_format("You have added ability of %s to %s.", es_ptr->add_name, o_name);
#endif

        /* Combine the pack */
        p_ptr->notice |= (PN_COMBINE | PN_REORDER);

        /* Window stuff */
        p_ptr->window |= (PW_INVEN);
}

/*!
 * @brief ¥¨¥Ã¥»¥ó¥¹¤ò¾Ãµî¤¹¤ë
 * @return ¤Ê¤·
 */
static void erase_essence(void)
{
        int item;
        cptr q, s;
        object_type *o_ptr;
        char o_name[MAX_NLEN];
        u32b flgs[TR_FLAG_SIZE];

        item_tester_hook = object_is_smith;

        /* Get an item */
#ifdef JP
        q = "¤É¤Î¥¢¥¤¥Æ¥à¤Î¥¨¥Ã¥»¥ó¥¹¤ò¾Ãµî¤·¤Þ¤¹¤«¡©";
        s = "¥¨¥Ã¥»¥ó¥¹¤òÉղä·¤¿¥¢¥¤¥Æ¥à¤¬¤¢¤ê¤Þ¤»¤ó¡£";
#else
        q = "Remove from which item? ";
        s = "You have nothing to remove essence.";
#endif

        if (!get_item(&item, q, s, (USE_INVEN | USE_FLOOR))) return;

        /* Get the item (in the pack) */
        if (item >= 0)
        {
                o_ptr = &inventory[item];
        }

        /* Get the item (on the floor) */
        else
        {
                o_ptr = &o_list[0 - item];
        }

        object_desc(o_name, o_ptr, (OD_OMIT_PREFIX | OD_NAME_ONLY));
#ifdef JP
        if (!get_check(format("¤è¤í¤·¤¤¤Ç¤¹¤«¡© [%s]", o_name))) return;
#else
        if (!get_check(format("Are you sure? [%s]", o_name))) return;
#endif

        energy_use = 100;

        if (o_ptr->xtra3 == 1+ESSENCE_SLAY_GLOVE)
        {
                o_ptr->to_h -= (o_ptr->xtra4>>8);
                o_ptr->to_d -= (o_ptr->xtra4 & 0x000f);
                o_ptr->xtra4 = 0;
                if (o_ptr->to_h < 0) o_ptr->to_h = 0;
                if (o_ptr->to_d < 0) o_ptr->to_d = 0;
        }
        o_ptr->xtra3 = 0;
        object_flags(o_ptr, flgs);
        if (!(have_pval_flags(flgs))) o_ptr->pval = 0;
#ifdef JP
        msg_print("¥¨¥Ã¥»¥ó¥¹¤ò¼è¤êµî¤Ã¤¿¡£");
#else
        msg_print("You removed all essence you have added.");
#endif

        /* Combine the pack */
        p_ptr->notice |= (PN_COMBINE | PN_REORDER);

        /* Window stuff */
        p_ptr->window |= (PW_INVEN);
}

/*!
 * @brief ÃÃÌꥳ¥Þ¥ó¥É¤Î¥á¥¤¥ó¥ë¡¼¥Á¥ó
 * @param only_browse TRUE¤Ê¤é¤Ð¥¨¥Ã¥»¥ó¥¹°ìÍ÷¤Îɽ¼¨¤Î¤ß¤ò¹Ô¤¦
 * @return ¤Ê¤·
 */
void do_cmd_kaji(bool only_browse)
{
        int mode = 0;
        char choice;

        int menu_line = (use_menu ? 1 : 0);

        if (!only_browse)
        {
                if (p_ptr->confused)
                {
#ifdef JP
                        msg_print("º®Í𤷤Ƥ¤¤Æºî¶È¤Ç¤­¤Ê¤¤¡ª");
#else
                        msg_print("You are too confused!");
#endif

                        return;
                }
                if (p_ptr->blind)
                {
#ifdef JP
                        msg_print("Ìܤ¬¸«¤¨¤Ê¤¯¤Æºî¶È¤Ç¤­¤Ê¤¤¡ª");
#else
                        msg_print("You are blind!");
#endif

                        return;
                }
                if (p_ptr->image)
                {
#ifdef JP
                        msg_print("¤¦¤Þ¤¯¸«¤¨¤Ê¤¯¤Æºî¶È¤Ç¤­¤Ê¤¤¡ª");
#else
                        msg_print("You are hallucinating!");
#endif

                        return;
                }
        }

#ifdef ALLOW_REPEAT
        if (!(repeat_pull(&mode) && 1 <= mode && mode <= 5))
        {
#endif /* ALLOW_REPEAT */

        if (only_browse) screen_save();
        do {
        if (!only_browse) screen_save();
        if (use_menu)
        {
                while(!mode)
                {
#ifdef JP
                        prt(format(" %s ¥¨¥Ã¥»¥ó¥¹°ìÍ÷", (menu_line == 1) ? "¡Õ" : "  "), 2, 14);
                        prt(format(" %s ¥¨¥Ã¥»¥ó¥¹Ãê½Ð", (menu_line == 2) ? "¡Õ" : "  "), 3, 14);
                        prt(format(" %s ¥¨¥Ã¥»¥ó¥¹¾Ãµî", (menu_line == 3) ? "¡Õ" : "  "), 4, 14);
                        prt(format(" %s ¥¨¥Ã¥»¥ó¥¹ÉÕ²Ã", (menu_line == 4) ? "¡Õ" : "  "), 5, 14);
                        prt(format(" %s Éð´ï/Ëɶñ¶¯²½", (menu_line == 5) ? "¡Õ" : "  "), 6, 14);
                        prt(format("¤É¤Î¼ïÎà¤Îµ»½Ñ¤ò%s¤Þ¤¹¤«¡©", only_browse ? "Ä´¤Ù" : "»È¤¤"), 0, 0);
#else
                        prt(format(" %s List essences", (menu_line == 1) ? "> " : "  "), 2, 14);
                        prt(format(" %s Extract essence", (menu_line == 2) ? "> " : "  "), 3, 14);
                        prt(format(" %s Remove essence", (menu_line == 3) ? "> " : "  "), 4, 14);
                        prt(format(" %s Add essence", (menu_line == 4) ? "> " : "  "), 5, 14);
                        prt(format(" %s Enchant weapon/armor", (menu_line == 5) ? "> " : "  "), 6, 14);
                        prt(format("Choose command from menu."), 0, 0);
#endif
                        choice = inkey();
                        switch(choice)
                        {
                        case ESCAPE:
                        case 'z':
                        case 'Z':
                                screen_load();
                                return;
                        case '2':
                        case 'j':
                        case 'J':
                                menu_line++;
                                break;
                        case '8':
                        case 'k':
                        case 'K':
                                menu_line+= 4;
                                break;
                        case '\r':
                        case '\n':
                        case 'x':
                        case 'X':
                                mode = menu_line;
                                break;
                        }
                        if (menu_line > 5) menu_line -= 5;
                }
        }

        else
        {
                while (!mode)
                {
#ifdef JP
                        prt("  a) ¥¨¥Ã¥»¥ó¥¹°ìÍ÷", 2, 14);
                        prt("  b) ¥¨¥Ã¥»¥ó¥¹Ãê½Ð", 3, 14);
                        prt("  c) ¥¨¥Ã¥»¥ó¥¹¾Ãµî", 4, 14);
                        prt("  d) ¥¨¥Ã¥»¥ó¥¹ÉÕ²Ã", 5, 14);
                        prt("  e) Éð´ï/Ëɶñ¶¯²½", 6, 14);
                        if (!get_com(format("¤É¤ÎǽÎϤò%s¤Þ¤¹¤«:", only_browse ? "Ä´¤Ù" : "»È¤¤"), &choice, TRUE))
#else
                        prt("  a) List essences", 2, 14);
                        prt("  b) Extract essence", 3, 14);
                        prt("  c) Remove essence", 4, 14);
                        prt("  d) Add essence", 5, 14);
                        prt("  e) Enchant weapon/armor", 6, 14);
                        if (!get_com("Command :", &choice, TRUE))
#endif
                        {
                                screen_load();
                                return;
                        }
                        switch (choice)
                        {
                        case 'A':
                        case 'a':
                                mode = 1;
                                break;
                        case 'B':
                        case 'b':
                                mode = 2;
                                break;
                        case 'C':
                        case 'c':
                                mode = 3;
                                break;
                        case 'D':
                        case 'd':
                                mode = 4;
                                break;
                        case 'E':
                        case 'e':
                                mode = 5;
                                break;
                        }
                }
        }

        if (only_browse)
        {
                char temp[62*5];
                int line, j;

                /* Clear lines, position cursor  (really should use strlen here) */
                Term_erase(14, 21, 255);
                Term_erase(14, 20, 255);
                Term_erase(14, 19, 255);
                Term_erase(14, 18, 255);
                Term_erase(14, 17, 255);
                Term_erase(14, 16, 255);

                roff_to_buf(kaji_tips[mode-1], 62, temp, sizeof(temp));
                for(j=0, line = 17;temp[j];j+=(1+strlen(&temp[j])))
                {
                        prt(&temp[j], line, 15);
                        line++;
                }
                mode = 0;
        }
        if (!only_browse) screen_load();
        } while (only_browse);
#ifdef ALLOW_REPEAT
        repeat_push(mode);
        }
#endif /* ALLOW_REPEAT */

        switch(mode)
        {
                case 1: display_essence();break;
                case 2: drain_essence();break;
                case 3: erase_essence();break;
                case 4:
                        mode = choose_essence();
                        if (mode == 0)
                                break;
                        add_essence(mode);
                        break;
                case 5: add_essence(10);break;
        }
}


/*!
 * @brief ÅêÚ³»þ¤¿¤¤¤Þ¤Ä¤ËÅꤲ¤ä¤¹¤¤/¾Æ´þ/¥¢¥ó¥Ç¥Ã¥É¥¹¥ì¥¤¤ÎÆÃÊ̸ú²Ì¤òÊÖ¤¹¡£
 * Torches have special abilities when they are flaming.
 * @param o_ptr ÅêÚ³¤¹¤ë¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @param flgs ÆÃÊ̤ËÄɲ乤ë¥Õ¥é¥°¤òÊÖ¤¹»²¾È¥Ý¥¤¥ó¥¿
 * @return ¤Ê¤·
 */
void torch_flags(object_type *o_ptr, u32b *flgs)
{
        if ((o_ptr->tval == TV_LITE) && (o_ptr->sval == SV_LITE_TORCH))
        {
                if (o_ptr->xtra4 > 0)
                {
                        add_flag(flgs, TR_BRAND_FIRE);
                        add_flag(flgs, TR_KILL_UNDEAD);
                        add_flag(flgs, TR_THROW);
                }
        }
}

/*!
 * @brief ÅêÚ³»þ¤¿¤¤¤Þ¤Ä¤Ë¥À¥¤¥¹¤òÍ¿¤¨¤ë¡£
 * Torches have special abilities when they are flaming.
 * @param o_ptr ÅêÚ³¤¹¤ë¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @param dd ÆÃÊ̤ʥÀ¥¤¥¹¿ô¤òÊÖ¤¹»²¾È¥Ý¥¤¥ó¥¿
 * @param ds ÆÃÊ̤ʥÀ¥¤¥¹ÌÌ¿ô¤òÊÖ¤¹»²¾È¥Ý¥¤¥ó¥¿
 * @return ¤Ê¤·
 */
void torch_dice(object_type *o_ptr, int *dd, int *ds)
{
        if ((o_ptr->tval == TV_LITE) && (o_ptr->sval == SV_LITE_TORCH))
        {
                if (o_ptr->xtra4 > 0)
                {
                        (*dd) = 1;
                        (*ds) = 6;
                }
        }
}

/*!
 * @brief ÅêÚ³»þÌ¿Ã椷¤¿¤¿¤¤¤Þ¤Ä¤Î¼÷Ì¿¤ò½Ì¤á¤ë¡£
 * Torches have special abilities when they are flaming.
 * @param o_ptr ÅêÚ³¤¹¤ë¥ª¥Ö¥¸¥§¥¯¥È¤Î¹½Â¤Âλ²¾È¥Ý¥¤¥ó¥¿
 * @return ¤Ê¤·
 */
void torch_lost_fuel(object_type *o_ptr)
{
        if ((o_ptr->tval == TV_LITE) && (o_ptr->sval == SV_LITE_TORCH))
        {
                o_ptr->xtra4 -= (FUEL_TORCH / 25);
                if (o_ptr->xtra4 < 0) o_ptr->xtra4 = 0;
        }
}