-
- /*!
- * @file grid.c
- * @brief グリッドの実装 / low level dungeon routines -BEN-
- * @date 2013/12/30
- * @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
- * \n
- * Support for Adam Bolt's tileset, lighting and transparency effects\n
- * by Robert Ruehlmann (rr9@angband.org)\n
- * \n
- * 2013 Deskull Doxygen向けのコメント整理\n
- */
-
+/*!
+ * @file grid.c
+ * @brief グリッドの実装 / low level dungeon routines -BEN-
+ * @date 2013/12/30
+ * @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
+ * \n
+ * Support for Adam Bolt's tileset, lighting and transparency effects\n
+ * by Robert Ruehlmann (rr9@angband.org)\n
+ * \n
+ * 2013 Deskull Doxygen向けのコメント整理\n
+ */
#include "angband.h"
#include "util.h"
/* Refuse to start on anti-teleport grids in dungeon */
if (!have_flag(f_ptr->flags, FF_TELEPORTABLE)) continue;
}
- if (!player_can_enter(g_ptr->feat, 0)) continue;
+ if (!player_can_enter(creature_ptr, g_ptr->feat, 0)) continue;
if (!in_bounds(creature_ptr->current_floor_ptr, y, x)) continue;
/* Refuse to start on anti-teleport grids */
}
/*!
- * @brief 特殊な部屋向けに各種アイテムを配置する / Create up to "num" objects near the given coordinates
- * @param y 配置したい中心マスのY座標
- * @param x 配置したい中心マスのX座標
- * @param num 配置したい数
- * @return なし
- * @details
- * Only really called by some of the "vault" routines.
- */
-void vault_objects(POSITION y, POSITION x, int num)
-{
- int dummy = 0;
- int i = 0, j = y, k = x;
-
- grid_type *g_ptr;
-
-
- /* Attempt to place 'num' objects */
- for (; num > 0; --num)
- {
- /* Try up to 11 spots looking for empty space */
- for (i = 0; i < 11; ++i)
- {
- /* Pick a random location */
- while (dummy < SAFE_MAX_ATTEMPTS)
- {
- j = rand_spread(y, 2);
- k = rand_spread(x, 3);
- dummy++;
- if (!in_bounds(p_ptr->current_floor_ptr, j, k)) continue;
- break;
- }
-
- if (dummy >= SAFE_MAX_ATTEMPTS && cheat_room)
- {
- msg_print(_("警告！地下室のアイテムを配置できません！", "Warning! Could not place vault object!"));
- }
-
- /* Require "clean" floor space */
- g_ptr = &p_ptr->current_floor_ptr->grid_array[j][k];
- if (!is_floor_grid(g_ptr) || g_ptr->o_idx) continue;
-
- if (randint0(100) < 75)
- {
- place_object(j, k, 0L);
- }
- else
- {
- place_gold(j, k);
- }
-
- /* Placement accomplished */
- break;
- }
- }
-}
-
-
-/*!
- * @brief 特殊な部屋向けに各種アイテムを配置する(メインルーチン) / Place some traps with a given displacement of given location
- * @param y トラップを配置したいマスの中心Y座標
- * @param x トラップを配置したいマスの中心X座標
- * @param yd Y方向の配置分散マス数
- * @param xd X方向の配置分散マス数
- * @param num 配置したいトラップの数
- * @return なし
- * @details
- * Only really called by some of the "vault" routines.
- */
-void vault_traps(POSITION y, POSITION x, POSITION yd, POSITION xd, int num)
-{
- int i;
-
- for (i = 0; i < num; i++)
- {
- vault_trap_aux(p_ptr->current_floor_ptr, y, x, yd, xd);
- }
-}
-
-/*!
- * @brief 指定のマスを床地形に変える / Set a square to be floor. (Includes range checking.)
- * @param x 地形を変えたいマスのX座標
- * @param y 地形を変えたいマスのY座標
- * @return なし
- */
-void set_floor(POSITION x, POSITION y)
-{
- if (!in_bounds(p_ptr->current_floor_ptr, y, x))
- {
- /* Out of bounds */
- return;
- }
-
- if (p_ptr->current_floor_ptr->grid_array[y][x].info & CAVE_ROOM)
- {
- /* A room border don't touch. */
- return;
- }
-
- /* Set to be floor if is a wall (don't touch lakes). */
- if (is_extra_bold(p_ptr->current_floor_ptr, y, x))
- place_floor_bold(p_ptr->current_floor_ptr, y, x);
-}
-
-/*!
* @brief マスにフロア端用の永久壁を配置する / Set boundary mimic and add "solid" perma-wall
* @param g_ptr 永久壁を配置したいマス構造体の参照ポインタ
* @return なし
int i;
POSITION yy, xx;
- if (!in_bounds(p_ptr->current_floor_ptr, y, x)) return;
+ if (!in_bounds(creature_ptr->current_floor_ptr, y, x)) return;
#ifdef COMPLEX_WALL_ILLUMINATION /* COMPLEX_WALL_ILLUMINATION */
* @return 視覚に収められていないならTRUEを返す
* @details player_can_see_bold()関数の返り値の否定を返している。
*/
-bool no_lite(void)
+bool no_lite(player_type *creature_ptr)
{
- return (!player_can_see_bold(p_ptr->y, p_ptr->x));
+ return (!player_can_see_bold(creature_ptr, creature_ptr->y, creature_ptr->x));
}
/*
* Place an attr/char pair at the given map coordinate, if legal.
*/
-void print_rel(SYMBOL_CODE c, TERM_COLOR a, TERM_LEN y, TERM_LEN x)
+void print_rel(player_type *subject_ptr, SYMBOL_CODE c, TERM_COLOR a, TERM_LEN y, TERM_LEN x)
{
/* Only do "legal" locations */
if (panel_contains(y, x))
if (!use_graphics)
{
if (current_world_ptr->timewalk_m_idx) a = TERM_DARK;
- else if (IS_INVULN() || p_ptr->timewalk) a = TERM_WHITE;
- else if (p_ptr->wraith_form) a = TERM_L_DARK;
+ else if (IS_INVULN(subject_ptr) || subject_ptr->timewalk) a = TERM_WHITE;
+ else if (subject_ptr->wraith_form) a = TERM_L_DARK;
}
/* Draw the char using the attr */
/*
+ * todo ここにplayer_type を追加した時のコンパイルエラーに対処できなかったので保留
* Memorize interesting viewable object/features in the given grid
*
* This function should only be called on "legal" grids.
TERM_COLOR ta;
SYMBOL_CODE tc;
- map_info(y, x, &a, &c, &ta, &tc);
+ map_info(p_ptr, y, x, &a, &c, &ta, &tc);
/* Hack -- fake monochrome */
if (!use_graphics)
{
if (current_world_ptr->timewalk_m_idx) a = TERM_DARK;
- else if (IS_INVULN() || p_ptr->timewalk) a = TERM_WHITE;
+ else if (IS_INVULN(p_ptr) || p_ptr->timewalk) a = TERM_WHITE;
else if (p_ptr->wraith_form) a = TERM_L_DARK;
}
* grid and maintains an array of all "CAVE_VIEW" grids.
*
* This set of grids is the complete set of all grids within line of sight
- * of the player, allowing the "player_has_los_bold(p_ptr, )" macro to work very
+ * of the player, allowing the "player_has_los_bold()" macro to work very
* quickly.
*
*
* To simplify various things, a grid may be marked as "CAVE_MARK", meaning
* that even if the player cannot "see" the grid, he "knows" the terrain in
* that grid. This is used to "remember" walls/doors/stairs/floors when they
- * are "seen" or "detected", and also to "memorize" floors, after "wiz_lite(p_ptr, )",
+ * are "seen" or "detected", and also to "memorize" floors, after "wiz_lite()",
* or when one of the "memorize floor grids" options induces memorization.
*
* Objects are "memorized" in a different way, using a special "marked" flag
* I am thinking in terms of an algorithm that "walks" from the central point
* out to the maximal "distance", at each point, determining the "view" code
* (above). For each grid not on a major axis or diagonal, the "view" code
- * depends on the "cave_los_bold(p_ptr->current_floor_ptr, )" and "view" of exactly two other grids
+ * depends on the "cave_los_bold()" and "view" of exactly two other grids
* (the one along the nearest diagonal, and the one next to that one, see
* "update_view_aux()"...).
*
*/
/*
- * Mega-Hack -- Delayed visual update
- * Only used if update_view(), update_lite() or update_mon_lite() was called
- */
-void delayed_visual_update(void)
-{
- int i;
- POSITION y, x;
- grid_type *g_ptr;
-
- /* Update needed grids */
- for (i = 0; i < p_ptr->current_floor_ptr->redraw_n; i++)
- {
- y = p_ptr->current_floor_ptr->redraw_y[i];
- x = p_ptr->current_floor_ptr->redraw_x[i];
- g_ptr = &p_ptr->current_floor_ptr->grid_array[y][x];
-
- /* Update only needed grids (prevent multiple updating) */
- if (!(g_ptr->info & CAVE_REDRAW)) continue;
-
- /* If required, note */
- if (g_ptr->info & CAVE_NOTE) note_spot(y, x);
-
- lite_spot(y, x);
-
- /* Hack -- Visual update of monster on this grid */
- if (g_ptr->m_idx) update_monster(p_ptr, g_ptr->m_idx, FALSE);
-
- /* No longer in the array */
- g_ptr->info &= ~(CAVE_NOTE | CAVE_REDRAW);
- }
-
- /* None left */
- p_ptr->current_floor_ptr->redraw_n = 0;
-}
-
-
-/*
* Hack - speed up the update_flow algorithm by only doing
* it everytime the player moves out of LOS of the last
* "way-point".
static POSITION flow_x = 0;
static POSITION flow_y = 0;
-
-
/*
* Hack -- fill in the "cost" field of every grid that the player
* can "reach" with the number of steps needed to reach that grid.
* We do not need a priority queue because the cost from grid
* to grid is always "one" and we process them in order.
*/
-void update_flow(void)
+void update_flow(player_type *subject_ptr)
{
POSITION x, y;
DIRECTION d;
if (tmp_pos.n) return;
/* The last way-point is on the map */
- if (p_ptr->running && in_bounds(p_ptr->current_floor_ptr, flow_y, flow_x))
+ if (subject_ptr->running && in_bounds(subject_ptr->current_floor_ptr, flow_y, flow_x))
{
/* The way point is in sight - do not update. (Speedup) */
- if (p_ptr->current_floor_ptr->grid_array[flow_y][flow_x].info & CAVE_VIEW) return;
+ if (subject_ptr->current_floor_ptr->grid_array[flow_y][flow_x].info & CAVE_VIEW) return;
}
/* Erase all of the current flow information */
- for (y = 0; y < p_ptr->current_floor_ptr->height; y++)
+ for (y = 0; y < subject_ptr->current_floor_ptr->height; y++)
{
- for (x = 0; x < p_ptr->current_floor_ptr->width; x++)
+ for (x = 0; x < subject_ptr->current_floor_ptr->width; x++)
{
- p_ptr->current_floor_ptr->grid_array[y][x].cost = 0;
- p_ptr->current_floor_ptr->grid_array[y][x].dist = 0;
+ subject_ptr->current_floor_ptr->grid_array[y][x].cost = 0;
+ subject_ptr->current_floor_ptr->grid_array[y][x].dist = 0;
}
}
/* Save player position */
- flow_y = p_ptr->y;
- flow_x = p_ptr->x;
+ flow_y = subject_ptr->y;
+ flow_x = subject_ptr->x;
/* Add the player's grid to the queue */
- tmp_pos.y[0] = p_ptr->y;
- tmp_pos.x[0] = p_ptr->x;
+ tmp_pos.y[0] = subject_ptr->y;
+ tmp_pos.x[0] = subject_ptr->x;
/* Now process the queue */
while (flow_head != flow_tail)
for (d = 0; d < 8; d++)
{
int old_head = flow_head;
- byte_hack m = p_ptr->current_floor_ptr->grid_array[ty][tx].cost + 1;
- byte_hack n = p_ptr->current_floor_ptr->grid_array[ty][tx].dist + 1;
+ byte_hack m = subject_ptr->current_floor_ptr->grid_array[ty][tx].cost + 1;
+ byte_hack n = subject_ptr->current_floor_ptr->grid_array[ty][tx].dist + 1;
grid_type *g_ptr;
/* Child location */
x = tx + ddx_ddd[d];
/* Ignore player's grid */
- if (player_bold(p_ptr, y, x)) continue;
+ if (player_bold(subject_ptr, y, x)) continue;
- g_ptr = &p_ptr->current_floor_ptr->grid_array[y][x];
+ g_ptr = &subject_ptr->current_floor_ptr->grid_array[y][x];
if (is_closed_door(g_ptr->feat)) m += 3;
}
}
-
-FEAT_IDX conv_dungeon_feat(FEAT_IDX newfeat)
-{
- feature_type *f_ptr = &f_info[newfeat];
-
- if (have_flag(f_ptr->flags, FF_CONVERT))
- {
- switch (f_ptr->subtype)
- {
- case CONVERT_TYPE_FLOOR:
- return feat_ground_type[randint0(100)];
- case CONVERT_TYPE_WALL:
- return feat_wall_type[randint0(100)];
- case CONVERT_TYPE_INNER:
- return feat_wall_inner;
- case CONVERT_TYPE_OUTER:
- return feat_wall_outer;
- case CONVERT_TYPE_SOLID:
- return feat_wall_solid;
- case CONVERT_TYPE_STREAM1:
- return d_info[p_ptr->dungeon_idx].stream1;
- case CONVERT_TYPE_STREAM2:
- return d_info[p_ptr->dungeon_idx].stream2;
- default:
- return newfeat;
- }
- }
- else return newfeat;
-}
-
-
/*
* Take a feature, determine what that feature becomes
* through applying the given action.
/* Get the new feature */
for (i = 0; i < MAX_FEAT_STATES; i++)
{
- if (f_ptr->state[i].action == action) return conv_dungeon_feat(f_ptr->state[i].result);
+ if (f_ptr->state[i].action == action) return conv_dungeon_feat(p_ptr->current_floor_ptr, f_ptr->state[i].result);
}
if (have_flag(f_ptr->flags, FF_PERMANENT)) return feat;
- return (feature_action_flags[action] & FAF_DESTROY) ? conv_dungeon_feat(f_ptr->destroyed) : feat;
+ return (feature_action_flags[action] & FAF_DESTROY) ? conv_dungeon_feat(p_ptr->current_floor_ptr, f_ptr->destroyed) : feat;
}
/*
* Takes a location and action and changes the feature at that
* location through applying the given action.
*/
-void cave_alter_feat(POSITION y, POSITION x, int action)
+void cave_alter_feat(player_type *player_ptr, POSITION y, POSITION x, int action)
{
/* Set old feature */
- FEAT_IDX oldfeat = p_ptr->current_floor_ptr->grid_array[y][x].feat;
+ floor_type *floor_ptr = player_ptr->current_floor_ptr;
+ FEAT_IDX oldfeat = floor_ptr->grid_array[y][x].feat;
/* Get the new feat */
FEAT_IDX newfeat = feat_state(oldfeat, action);
if (newfeat == oldfeat) return;
/* Set the new feature */
- cave_set_feat(p_ptr->current_floor_ptr, y, x, newfeat);
+ cave_set_feat(player_ptr, y, x, newfeat);
if (!(feature_action_flags[action] & FAF_NO_DROP))
{
if (have_flag(old_f_ptr->flags, FF_HAS_GOLD) && !have_flag(f_ptr->flags, FF_HAS_GOLD))
{
/* Place some gold */
- place_gold(y, x);
+ place_gold(floor_ptr, y, x);
found = TRUE;
}
/* Handle item */
- if (have_flag(old_f_ptr->flags, FF_HAS_ITEM) && !have_flag(f_ptr->flags, FF_HAS_ITEM) && (randint0(100) < (15 - p_ptr->current_floor_ptr->dun_level / 2)))
+ if (have_flag(old_f_ptr->flags, FF_HAS_ITEM) && !have_flag(f_ptr->flags, FF_HAS_ITEM) && (randint0(100) < (15 - floor_ptr->dun_level / 2)))
{
/* Place object */
- place_object(y, x, 0L);
+ place_object(player_ptr, y, x, 0L);
found = TRUE;
}
- if (found && current_world_ptr->character_dungeon && player_can_see_bold(y, x))
+ if (found && current_world_ptr->character_dungeon && player_can_see_bold(player_ptr, y, x))
{
msg_print(_("何かを発見した！", "You have found something!"));
}
if (have_flag(old_f_ptr->flags, FF_GLASS) && current_world_ptr->character_dungeon)
{
- project(p_ptr, PROJECT_WHO_GLASS_SHARDS, 1, y, x, MIN(p_ptr->current_floor_ptr->dun_level, 100) / 4, GF_SHARDS,
+ project(player_ptr, PROJECT_WHO_GLASS_SHARDS, 1, y, x, MIN(floor_ptr->dun_level, 100) / 4, GF_SHARDS,
(PROJECT_GRID | PROJECT_ITEM | PROJECT_KILL | PROJECT_HIDE | PROJECT_JUMP | PROJECT_NO_HANGEKI), -1);
}
}
/* Remove a mirror */
-void remove_mirror(POSITION y, POSITION x)
+void remove_mirror(player_type *caster_ptr, POSITION y, POSITION x)
{
- grid_type *g_ptr = &p_ptr->current_floor_ptr->grid_array[y][x];
+ grid_type *g_ptr = &caster_ptr->current_floor_ptr->grid_array[y][x];
/* Remove the mirror */
g_ptr->info &= ~(CAVE_OBJECT);
g_ptr->mimic = 0;
- if (d_info[p_ptr->dungeon_idx].flags1 & DF1_DARKNESS)
+ if (d_info[caster_ptr->dungeon_idx].flags1 & DF1_DARKNESS)
{
g_ptr->info &= ~(CAVE_GLOW);
if (!view_torch_grids) g_ptr->info &= ~(CAVE_MARK);
- if (g_ptr->m_idx) update_monster(p_ptr, g_ptr->m_idx, FALSE);
+ if (g_ptr->m_idx) update_monster(caster_ptr, g_ptr->m_idx, FALSE);
- update_local_illumination(p_ptr, y, x);
+ update_local_illumination(caster_ptr, y, x);
}
note_spot(y, x);
if (!(mode & TELEPORT_PASSIVE))
{
- if (!player_can_enter(g_ptr->feat, 0)) return FALSE;
+ if (!player_can_enter(p_ptr, g_ptr->feat, 0)) return FALSE;
if (have_flag(f_ptr->flags, FF_WATER) && have_flag(f_ptr->flags, FF_DEEP))
{
if (!p_ptr->levitation && !p_ptr->can_swim) return FALSE;
}
- if (have_flag(f_ptr->flags, FF_LAVA) && !p_ptr->immune_fire && !IS_INVULN())
+ if (have_flag(f_ptr->flags, FF_LAVA) && !p_ptr->immune_fire && !IS_INVULN(p_ptr))
{
/* Always forbid deep lava */
if (have_flag(f_ptr->flags, FF_DEEP)) return FALSE;
* @param mode 移動に関するオプションフラグ
* @return 移動可能ならばTRUEを返す
*/
-bool player_can_enter(FEAT_IDX feature, BIT_FLAGS16 mode)
+bool player_can_enter(player_type *creature_ptr, FEAT_IDX feature, BIT_FLAGS16 mode)
{
feature_type *f_ptr = &f_info[feature];
- if (p_ptr->riding) return monster_can_cross_terrain(feature, &r_info[p_ptr->current_floor_ptr->m_list[p_ptr->riding].r_idx], mode | CEM_RIDING);
+ if (creature_ptr->riding) return monster_can_cross_terrain(feature, &r_info[creature_ptr->current_floor_ptr->m_list[creature_ptr->riding].r_idx], mode | CEM_RIDING);
if (have_flag(f_ptr->flags, FF_PATTERN))
{
if (!(mode & CEM_P_CAN_ENTER_PATTERN)) return FALSE;
}
- if (have_flag(f_ptr->flags, FF_CAN_FLY) && p_ptr->levitation) return TRUE;
- if (have_flag(f_ptr->flags, FF_CAN_SWIM) && p_ptr->can_swim) return TRUE;
- if (have_flag(f_ptr->flags, FF_CAN_PASS) && p_ptr->pass_wall) return TRUE;
+ if (have_flag(f_ptr->flags, FF_CAN_FLY) && creature_ptr->levitation) return TRUE;
+ if (have_flag(f_ptr->flags, FF_CAN_SWIM) && creature_ptr->can_swim) return TRUE;
+ if (have_flag(f_ptr->flags, FF_CAN_PASS) && creature_ptr->pass_wall) return TRUE;
if (!have_flag(f_ptr->flags, FF_MOVE)) return FALSE;
return TRUE;
}
+
+void place_inner_grid(grid_type *g_ptr)
+{
+ g_ptr->feat = feat_wall_inner;
+ g_ptr->info &= ~(CAVE_MASK);
+ g_ptr->info |= CAVE_INNER;
+ if (g_ptr->m_idx) delete_monster_idx(g_ptr->m_idx);
+}
+
+
+void place_inner_perm_grid(grid_type *g_ptr)
+{
+ g_ptr->feat = feat_permanent;
+ g_ptr->info &= ~(CAVE_MASK);
+ g_ptr->info |= CAVE_INNER;
+ if (g_ptr->m_idx) delete_monster_idx(g_ptr->m_idx);
+}
+
+
+void place_outer_grid(grid_type *g_ptr)
+{
+ g_ptr->feat = feat_wall_outer;
+ g_ptr->info &= ~(CAVE_MASK);
+ g_ptr->info |= CAVE_OUTER;
+ if (g_ptr->m_idx) delete_monster_idx(g_ptr->m_idx);
+}
+
+
+void place_outer_noperm_grid(grid_type *g_ptr)
+{
+ feature_type *_f_ptr = &f_info[feat_wall_outer];
+ if (permanent_wall(_f_ptr)) g_ptr->feat = (s16b)feat_state(feat_wall_outer, FF_UNPERM);
+ else g_ptr->feat = feat_wall_outer;
+ g_ptr->info &= ~(CAVE_MASK);
+ g_ptr->info |= (CAVE_OUTER | CAVE_VAULT);
+ if (g_ptr->m_idx) delete_monster_idx(g_ptr->m_idx);
+}
+
+
+void place_solid_perm_grid(grid_type *g_ptr)
+{
+ g_ptr->feat = feat_permanent;
+ g_ptr->info &= ~(CAVE_MASK);
+ g_ptr->info |= CAVE_SOLID;
+ if (g_ptr->m_idx) delete_monster_idx(g_ptr->m_idx);
+}
+
+
+void place_grid(grid_type *g_ptr, place_grid_type pg_type)
+{
+ switch (pg_type)
+ {
+ case floor:
+ {
+ g_ptr->feat = feat_ground_type[randint0(100)];
+ g_ptr->info |= CAVE_FLOOR;
+ break;
+ }
+ case extra:
+ {
+ g_ptr->feat = feat_wall_type[randint0(100)];
+ g_ptr->info |= CAVE_EXTRA;
+ break;
+ }
+ case innner:
+ {
+ g_ptr->feat = feat_wall_inner;
+ g_ptr->info |= CAVE_INNER;
+ break;
+ }
+ case outer:
+ {
+ g_ptr->feat = feat_permanent;
+ g_ptr->info |= CAVE_INNER;
+ break;
+ }
+ case outer_noperm:
+ {
+ feature_type *f_ptr = &f_info[feat_wall_outer];
+ if (permanent_wall(f_ptr))
+ {
+ g_ptr->feat = (s16b)feat_state(feat_wall_outer, FF_UNPERM);
+ }
+ else
+ {
+ g_ptr->feat = feat_wall_outer;
+ }
+
+ g_ptr->info |= (CAVE_OUTER | CAVE_VAULT);
+ break;
+ }
+ case solid_perm:
+ {
+ g_ptr->feat = feat_permanent;
+ g_ptr->info |= CAVE_SOLID;
+ break;
+ }
+ default:
+ return;
+ }
+
+ g_ptr->info &= ~(CAVE_MASK);
+ if (g_ptr->m_idx) delete_monster_idx(g_ptr->m_idx);
+}
+
+
+/*!
+ * モンスターにより照明が消されている地形か否かを判定する。 / Is this grid "darkened" by monster?
+ * @param player_ptr プレーヤーへの参照ポインタ
+ * @param g_ptr グリッドへの参照ポインタ
+ * @return 照明が消されている地形ならばTRUE
+ */
+bool darkened_grid(player_type *player_ptr, grid_type *g_ptr)
+{
+ return ((g_ptr->info & (CAVE_VIEW | CAVE_LITE | CAVE_MNLT | CAVE_MNDK)) == (CAVE_VIEW | CAVE_MNDK)) &&
+ !player_ptr->see_nocto;
+}
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