src/object/warning.c

   1 #include "object/warning.h"
   2 #include "artifact/fixed-art-types.h"
   3 #include "core/asking-player.h"
   4 #include "core/disturbance.h"
   5 #include "dungeon/dungeon-flag-types.h"
   6 #include "dungeon/dungeon.h"
   7 #include "flavor/flavor-describer.h"
   8 #include "flavor/object-flavor-types.h"
   9 #include "floor/cave.h"
  10 #include "game-option/input-options.h"
  11 #include "grid/feature.h"
  12 #include "grid/grid.h"
  13 #include "inventory/inventory-slot-types.h"
  14 #include "monster-attack/monster-attack-effect.h"
  15 #include "monster-attack/monster-attack-types.h"
  16 #include "monster-race/monster-race.h"
  17 #include "monster-race/race-flags-ability1.h"
  18 #include "monster-race/race-flags-ability2.h"
  19 #include "monster-race/race-flags1.h"
  20 #include "monster-race/race-flags4.h"
  21 #include "monster-race/race-indice-types.h"
  22 #include "monster/monster-info.h"
  23 #include "monster/monster-status.h"
  24 #include "mspell/mspell-damage-calculator.h"
  25 #include "mspell/mspell-type.h"
  26 #include "mutation/mutation-flag-types.h"
  27 #include "object-enchant/tr-types.h"
  28 #include "object/object-flags.h"
  29 #include "player/mimic-info-table.h"
  30 #include "player/player-class.h"
  31 #include "player/player-race-types.h"
  32 #include "player/player-status-flags.h"
  33 #include "player/player-status-resist.h"
  34 #include "player/special-defense-types.h"
  35 #include "spell/spell-types.h"
  36 #include "status/element-resistance.h"
  37 #include "system/floor-type-definition.h"
  38 #include "target/projection-path-calculator.h"
  39 #include "util/bit-flags-calculator.h"
  40 #include "view/display-messages.h"
  41
  42 /*!
  43  * @brief 警告を放つアイテムを選択する /
  44  * Choose one of items that have warning flag
  45  * Calculate spell damages
  46  * @return 警告を行う
  47  */
  48 object_type *choose_warning_item(player_type *creature_ptr)
  49 {
  50     int choices[INVEN_TOTAL - INVEN_RARM];
  51
  52     /* Paranoia -- Player has no warning ability */
  53     if (!creature_ptr->warning)
  54         return NULL;
  55
  56     /* Search Inventory */
  57     int number = 0;
  58     for (inventory_slot_type i = INVEN_RARM; i < INVEN_TOTAL; i++) {
  59         BIT_FLAGS flgs[TR_FLAG_SIZE];
  60         object_type *o_ptr = &creature_ptr->inventory_list[i];
  61
  62         object_flags(creature_ptr, o_ptr, flgs);
  63         if (has_flag(flgs, TR_WARNING)) {
  64             choices[number] = i;
  65             number++;
  66         }
  67     }
  68
  69     /* Choice one of them */
  70     return number ? &creature_ptr->inventory_list[choices[randint0(number)]] : NULL;
  71 }
  72
  73 /*!
  74  * @brief 警告基準を定めるために魔法の効果属性に基づいて最大魔法ダメージを計算する /
  75  * Calculate spell damages
  76  * @param m_ptr 魔法を行使するモンスターの構造体参照ポインタ
  77  * @param typ 効果属性のID
  78  * @param dam 基本ダメージ
  79  * @param max 算出した最大ダメージを返すポインタ
  80  * @return なし
  81  */
  82 static void spell_damcalc(player_type *target_ptr, monster_type *m_ptr, EFFECT_ID typ, HIT_POINT dam, int *max)
  83 {
  84     monster_race *r_ptr = &r_info[m_ptr->r_idx];
  85     int rlev = r_ptr->level;
  86     bool ignore_wraith_form = FALSE;
  87
  88     /* Vulnerability, resistance and immunity */
  89     switch (typ) {
  90     case GF_ELEC:
  91         if (has_immune_elec(target_ptr)) {
  92             ignore_wraith_form = TRUE;
  93         }
  94         dam = dam * calc_elec_damage_rate(target_ptr) / 100;
  95         break;
  96
  97     case GF_POIS:
  98         dam = dam * calc_pois_damage_rate(target_ptr) / 100;
  99         break;
 100
 101     case GF_ACID:
 102         if (has_immune_acid(target_ptr)) {
 103             ignore_wraith_form = TRUE;
 104         }
 105         dam = dam * calc_acid_damage_rate(target_ptr) / 100;
 106         break;
 107
 108     case GF_COLD:
 109     case GF_ICE:
 110         if (has_immune_cold(target_ptr)) {
 111             ignore_wraith_form = TRUE;
 112         }
 113         dam = dam * calc_cold_damage_rate(target_ptr) / 100;
 114         break;
 115
 116     case GF_FIRE:
 117         if (has_immune_fire(target_ptr)) {
 118             ignore_wraith_form = TRUE;
 119         }
 120         dam = dam * calc_fire_damage_rate(target_ptr) / 100;
 121         break;
 122
 123     case GF_PSY_SPEAR:
 124         ignore_wraith_form = TRUE;
 125         break;
 126
 127     case GF_ARROW:
 128         if (!target_ptr->blind && (has_invuln_arrow(target_ptr))) {
 129             dam = 0;
 130             ignore_wraith_form = TRUE;
 131         }
 132         break;
 133
 134     case GF_LITE:
 135         dam = dam * calc_lite_damage_rate(target_ptr, CALC_MAX) / 100;
 136         break;
 137
 138     case GF_DARK:
 139         dam = dam * calc_dark_damage_rate(target_ptr, CALC_MAX) / 100;
 140         if (is_specific_player_race(target_ptr, RACE_VAMPIRE) || (target_ptr->mimic_form == MIMIC_VAMPIRE) || target_ptr->wraith_form)
 141             ignore_wraith_form = TRUE;
 142         break;
 143
 144     case GF_SHARDS:
 145         dam = dam * calc_shards_damage_rate(target_ptr, CALC_MAX) / 100;
 146         break;
 147
 148     case GF_SOUND:
 149         dam = dam * calc_sound_damage_rate(target_ptr, CALC_MAX) / 100;
 150         break;
 151
 152     case GF_CONFUSION:
 153         dam = dam * calc_conf_damage_rate(target_ptr, CALC_MAX) / 100;
 154         break;
 155
 156     case GF_CHAOS:
 157         dam = dam * calc_chaos_damage_rate(target_ptr, CALC_MAX) / 100;
 158         break;
 159
 160     case GF_NETHER:
 161         dam = dam * calc_nether_damage_rate(target_ptr, CALC_MAX) / 100;
 162         if (is_specific_player_race(target_ptr, RACE_SPECTRE)) {
 163             ignore_wraith_form = TRUE;
 164             dam = 0;
 165         }
 166         break;
 167
 168     case GF_DISENCHANT:
 169         dam = dam * calc_disenchant_damage_rate(target_ptr, CALC_MAX) / 100;
 170         break;
 171
 172     case GF_NEXUS:
 173         dam = dam * calc_nexus_damage_rate(target_ptr, CALC_MAX) / 100;
 174         break;
 175
 176     case GF_TIME:
 177         dam = dam * calc_time_damage_rate(target_ptr, CALC_MAX) / 100;
 178         break;
 179
 180     case GF_GRAVITY:
 181         dam = dam * calc_gravity_damage_rate(target_ptr, CALC_MAX) / 100;
 182         break;
 183
 184     case GF_ROCKET:
 185         dam = dam * calc_rocket_damage_rate(target_ptr, CALC_MAX) / 100;
 186         break;
 187
 188     case GF_NUKE:
 189         dam = dam * calc_nuke_damage_rate(target_ptr) / 100;
 190         break;
 191
 192     case GF_DEATH_RAY:
 193         dam = dam * calc_deathray_damage_rate(target_ptr, CALC_MAX) / 100;
 194         if (dam == 0)
 195             ignore_wraith_form = TRUE;
 196         break;
 197
 198     case GF_HOLY_FIRE:
 199         dam = dam * calc_holy_fire_damage_rate(target_ptr, CALC_MAX) / 100;
 200         break;
 201
 202     case GF_HELL_FIRE:
 203         dam = dam * calc_hell_fire_damage_rate(target_ptr, CALC_MAX) / 100;
 204         break;
 205
 206     case GF_MIND_BLAST:
 207     case GF_BRAIN_SMASH:
 208         if (100 + rlev / 2 <= MAX(5, target_ptr->skill_sav)) {
 209             dam = 0;
 210             ignore_wraith_form = TRUE;
 211         }
 212
 213         break;
 214
 215     case GF_CAUSE_1:
 216     case GF_CAUSE_2:
 217     case GF_CAUSE_3:
 218     case GF_HAND_DOOM:
 219         if (100 + rlev / 2 <= target_ptr->skill_sav) {
 220             dam = 0;
 221             ignore_wraith_form = TRUE;
 222         }
 223
 224         break;
 225
 226     case GF_CAUSE_4:
 227         if ((100 + rlev / 2 <= target_ptr->skill_sav) && (m_ptr->r_idx != MON_KENSHIROU)) {
 228             dam = 0;
 229             ignore_wraith_form = TRUE;
 230         }
 231
 232         break;
 233     }
 234
 235     if (target_ptr->wraith_form && !ignore_wraith_form) {
 236         dam /= 2;
 237         if (!dam)
 238             dam = 1;
 239     }
 240
 241     if (dam > *max)
 242         *max = dam;
 243 }
 244
 245 /*!
 246  * @brief 警告基準を定めるために魔法の効果属性に基づいて最大魔法ダメージを計算する。 /
 247  * Calculate spell damages
 248  * @param spell_num RF4ならRF4_SPELL_STARTのように32区切りのベースとなる数値
 249  * @param typ 効果属性のID
 250  * @param m_idx 魔法を行使するモンスターのID
 251  * @param max 算出した最大ダメージを返すポインタ
 252  * @return なし
 253  */
 254 void spell_damcalc_by_spellnum(player_type *creature_ptr, monster_spell_type ms_type, EFFECT_ID typ, MONSTER_IDX m_idx, int *max)
 255 {
 256     monster_type *m_ptr = &creature_ptr->current_floor_ptr->m_list[m_idx];
 257     HIT_POINT dam = monspell_damage(creature_ptr, ms_type, m_idx, DAM_MAX);
 258     spell_damcalc(creature_ptr, m_ptr, typ, dam, max);
 259 }
 260
 261 /*!
 262  * @brief 警告基準を定めるためにモンスターの打撃最大ダメージを算出する /
 263  * Calculate blow damages
 264  * @param m_ptr 打撃を行使するモンスターの構造体参照ポインタ
 265  * @param blow_ptr モンスターの打撃能力の構造体参照ポインタ
 266  * @return 算出された最大ダメージを返す。
 267  */
 268 static int blow_damcalc(monster_type *m_ptr, player_type *target_ptr, monster_blow *blow_ptr)
 269 {
 270     int dam = blow_ptr->d_dice * blow_ptr->d_side;
 271     int dummy_max = 0;
 272
 273     if (blow_ptr->method == RBM_EXPLODE) {
 274         dam = (dam + 1) / 2;
 275         spell_damcalc(target_ptr, m_ptr, mbe_info[blow_ptr->effect].explode_type, dam, &dummy_max);
 276         dam = dummy_max;
 277         return dam;
 278     }
 279
 280     ARMOUR_CLASS ac = target_ptr->ac + target_ptr->to_a;
 281     bool check_wraith_form = TRUE;
 282     switch (blow_ptr->effect) {
 283     case RBE_SUPERHURT: {
 284         int tmp_dam = dam - (dam * ((ac < 150) ? ac : 150) / 250);
 285         dam = MAX(dam, tmp_dam * 2);
 286         break;
 287     }
 288
 289     case RBE_HURT:
 290     case RBE_SHATTER:
 291         dam -= (dam * ((ac < 150) ? ac : 150) / 250);
 292         break;
 293
 294     case RBE_ACID:
 295         spell_damcalc(target_ptr, m_ptr, GF_ACID, dam, &dummy_max);
 296         dam = dummy_max;
 297         check_wraith_form = FALSE;
 298         break;
 299
 300     case RBE_ELEC:
 301         spell_damcalc(target_ptr, m_ptr, GF_ELEC, dam, &dummy_max);
 302         dam = dummy_max;
 303         check_wraith_form = FALSE;
 304         break;
 305
 306     case RBE_FIRE:
 307         spell_damcalc(target_ptr, m_ptr, GF_FIRE, dam, &dummy_max);
 308         dam = dummy_max;
 309         check_wraith_form = FALSE;
 310         break;
 311
 312     case RBE_COLD:
 313         spell_damcalc(target_ptr, m_ptr, GF_COLD, dam, &dummy_max);
 314         dam = dummy_max;
 315         check_wraith_form = FALSE;
 316         break;
 317
 318     case RBE_DR_MANA:
 319         dam = 0;
 320         check_wraith_form = FALSE;
 321         break;
 322     }
 323
 324     if (check_wraith_form && target_ptr->wraith_form) {
 325         dam /= 2;
 326         if (!dam)
 327             dam = 1;
 328     }
 329
 330     return dam;
 331 }
 332
 333 /*!
 334  * @brief プレイヤーが特定地点へ移動した場合に警告を発する処理 /
 335  * Examine the grid (xx,yy) and warn the player if there are any danger
 336  * @param xx 危険性を調査するマスのX座標
 337  * @param yy 危険性を調査するマスのY座標
 338  * @return 警告を無視して進むことを選択するかか問題が無ければTRUE、警告に従ったならFALSEを返す。
 339  */
 340 bool process_warning(player_type *creature_ptr, POSITION xx, POSITION yy)
 341 {
 342     POSITION mx, my;
 343     grid_type *g_ptr;
 344     GAME_TEXT o_name[MAX_NLEN];
 345
 346 #define WARNING_AWARE_RANGE 12
 347     int dam_max = 0;
 348     static int old_damage = 0;
 349
 350     for (mx = xx - WARNING_AWARE_RANGE; mx < xx + WARNING_AWARE_RANGE + 1; mx++) {
 351         for (my = yy - WARNING_AWARE_RANGE; my < yy + WARNING_AWARE_RANGE + 1; my++) {
 352             int dam_max0 = 0;
 353             monster_type *m_ptr;
 354             monster_race *r_ptr;
 355
 356             if (!in_bounds(creature_ptr->current_floor_ptr, my, mx) || (distance(my, mx, yy, xx) > WARNING_AWARE_RANGE))
 357                 continue;
 358
 359             g_ptr = &creature_ptr->current_floor_ptr->grid_array[my][mx];
 360
 361             if (!g_ptr->m_idx)
 362                 continue;
 363
 364             m_ptr = &creature_ptr->current_floor_ptr->m_list[g_ptr->m_idx];
 365
 366             if (monster_csleep_remaining(m_ptr))
 367                 continue;
 368             if (!is_hostile(m_ptr))
 369                 continue;
 370
 371             r_ptr = &r_info[m_ptr->r_idx];
 372
 373             /* Monster spells (only powerful ones)*/
 374             if (projectable(creature_ptr, my, mx, yy, xx)) {
 375                 BIT_FLAGS f4 = r_ptr->flags4;
 376                 BIT_FLAGS f5 = r_ptr->a_ability_flags1;
 377                 BIT_FLAGS f6 = r_ptr->a_ability_flags2;
 378
 379                 if (!(d_info[creature_ptr->dungeon_idx].flags1 & DF1_NO_MAGIC)) {
 380                     if (f4 & RF4_BA_CHAO)
 381                         spell_damcalc_by_spellnum(creature_ptr, MS_BALL_CHAOS, GF_CHAOS, g_ptr->m_idx, &dam_max0);
 382                     if (f5 & RF5_BA_MANA)
 383                         spell_damcalc_by_spellnum(creature_ptr, MS_BALL_MANA, GF_MANA, g_ptr->m_idx, &dam_max0);
 384                     if (f5 & RF5_BA_DARK)
 385                         spell_damcalc_by_spellnum(creature_ptr, MS_BALL_DARK, GF_DARK, g_ptr->m_idx, &dam_max0);
 386                     if (f5 & RF5_BA_LITE)
 387                         spell_damcalc_by_spellnum(creature_ptr, MS_STARBURST, GF_LITE, g_ptr->m_idx, &dam_max0);
 388                     if (f6 & RF6_HAND_DOOM)
 389                         spell_damcalc_by_spellnum(creature_ptr, MS_HAND_DOOM, GF_HAND_DOOM, g_ptr->m_idx, &dam_max0);
 390                     if (f6 & RF6_PSY_SPEAR)
 391                         spell_damcalc_by_spellnum(creature_ptr, MS_PSY_SPEAR, GF_PSY_SPEAR, g_ptr->m_idx, &dam_max0);
 392                 }
 393
 394                 if (f4 & RF4_ROCKET)
 395                     spell_damcalc_by_spellnum(creature_ptr, MS_ROCKET, GF_ROCKET, g_ptr->m_idx, &dam_max0);
 396                 if (f4 & RF4_BR_ACID)
 397                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_ACID, GF_ACID, g_ptr->m_idx, &dam_max0);
 398                 if (f4 & RF4_BR_ELEC)
 399                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_ELEC, GF_ELEC, g_ptr->m_idx, &dam_max0);
 400                 if (f4 & RF4_BR_FIRE)
 401                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_FIRE, GF_FIRE, g_ptr->m_idx, &dam_max0);
 402                 if (f4 & RF4_BR_COLD)
 403                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_COLD, GF_COLD, g_ptr->m_idx, &dam_max0);
 404                 if (f4 & RF4_BR_POIS)
 405                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_POIS, GF_POIS, g_ptr->m_idx, &dam_max0);
 406                 if (f4 & RF4_BR_NETH)
 407                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_NETHER, GF_NETHER, g_ptr->m_idx, &dam_max0);
 408                 if (f4 & RF4_BR_LITE)
 409                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_LITE, GF_LITE, g_ptr->m_idx, &dam_max0);
 410                 if (f4 & RF4_BR_DARK)
 411                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_DARK, GF_DARK, g_ptr->m_idx, &dam_max0);
 412                 if (f4 & RF4_BR_CONF)
 413                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_CONF, GF_CONFUSION, g_ptr->m_idx, &dam_max0);
 414                 if (f4 & RF4_BR_SOUN)
 415                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_SOUND, GF_SOUND, g_ptr->m_idx, &dam_max0);
 416                 if (f4 & RF4_BR_CHAO)
 417                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_CHAOS, GF_CHAOS, g_ptr->m_idx, &dam_max0);
 418                 if (f4 & RF4_BR_DISE)
 419                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_DISEN, GF_DISENCHANT, g_ptr->m_idx, &dam_max0);
 420                 if (f4 & RF4_BR_NEXU)
 421                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_NEXUS, GF_NEXUS, g_ptr->m_idx, &dam_max0);
 422                 if (f4 & RF4_BR_TIME)
 423                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_TIME, GF_TIME, g_ptr->m_idx, &dam_max0);
 424                 if (f4 & RF4_BR_INER)
 425                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_INERTIA, GF_INERTIAL, g_ptr->m_idx, &dam_max0);
 426                 if (f4 & RF4_BR_GRAV)
 427                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_GRAVITY, GF_GRAVITY, g_ptr->m_idx, &dam_max0);
 428                 if (f4 & RF4_BR_SHAR)
 429                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_SHARDS, GF_SHARDS, g_ptr->m_idx, &dam_max0);
 430                 if (f4 & RF4_BR_PLAS)
 431                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_PLASMA, GF_PLASMA, g_ptr->m_idx, &dam_max0);
 432                 if (f4 & RF4_BR_WALL)
 433                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_FORCE, GF_FORCE, g_ptr->m_idx, &dam_max0);
 434                 if (f4 & RF4_BR_MANA)
 435                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_MANA, GF_MANA, g_ptr->m_idx, &dam_max0);
 436                 if (f4 & RF4_BR_NUKE)
 437                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_NUKE, GF_NUKE, g_ptr->m_idx, &dam_max0);
 438                 if (f4 & RF4_BR_DISI)
 439                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_DISI, GF_DISINTEGRATE, g_ptr->m_idx, &dam_max0);
 440             }
 441
 442             /* Monster melee attacks */
 443             if ((r_ptr->flags1 & RF1_NEVER_BLOW) || (d_info[creature_ptr->dungeon_idx].flags1 & DF1_NO_MELEE)) {
 444                 dam_max += dam_max0;
 445                 continue;
 446             }
 447
 448             if (!(mx <= xx + 1 && mx >= xx - 1 && my <= yy + 1 && my >= yy - 1)) {
 449                 dam_max += dam_max0;
 450                 continue;
 451             }
 452
 453             int dam_melee = 0;
 454             for (int m = 0; m < 4; m++) {
 455                 /* Skip non-attacks */
 456                 if (!r_ptr->blow[m].method || (r_ptr->blow[m].method == RBM_SHOOT))
 457                     continue;
 458
 459                 /* Extract the attack info */
 460                 dam_melee += blow_damcalc(m_ptr, creature_ptr, &r_ptr->blow[m]);
 461                 if (r_ptr->blow[m].method == RBM_EXPLODE)
 462                     break;
 463             }
 464
 465             if (dam_melee > dam_max0)
 466                 dam_max0 = dam_melee;
 467             dam_max += dam_max0;
 468         }
 469     }
 470
 471     /* Prevent excessive warning */
 472     if (dam_max > old_damage) {
 473         old_damage = dam_max * 3 / 2;
 474
 475         if (dam_max > creature_ptr->chp / 2) {
 476             object_type *o_ptr = choose_warning_item(creature_ptr);
 477
 478             if (o_ptr)
 479                 describe_flavor(creature_ptr, o_name, o_ptr, (OD_OMIT_PREFIX | OD_NAME_ONLY));
 480             else
 481                 strcpy(o_name, _("体", "body")); /* Warning ability without item */
 482             msg_format(_("%sが鋭く震えた！", "Your %s pulsates sharply!"), o_name);
 483
 484             disturb(creature_ptr, FALSE, TRUE);
 485             return get_check(_("本当にこのまま進むか？", "Really want to go ahead? "));
 486         }
 487     } else
 488         old_damage = old_damage / 2;
 489
 490     g_ptr = &creature_ptr->current_floor_ptr->grid_array[yy][xx];
 491     bool is_warning = (!easy_disarm && is_trap(creature_ptr, g_ptr->feat)) || (g_ptr->mimic && is_trap(creature_ptr, g_ptr->feat));
 492     is_warning &= !one_in_(13);
 493     if (!is_warning)
 494         return TRUE;
 495
 496     object_type *o_ptr = choose_warning_item(creature_ptr);
 497     if (o_ptr != NULL)
 498         describe_flavor(creature_ptr, o_name, o_ptr, (OD_OMIT_PREFIX | OD_NAME_ONLY));
 499     else
 500         strcpy(o_name, _("体", "body")); /* Warning ability without item */
 501     msg_format(_("%sが鋭く震えた！", "Your %s pulsates sharply!"), o_name);
 502     disturb(creature_ptr, FALSE, TRUE);
 503     return get_check(_("本当にこのまま進むか？", "Really want to go ahead? "));
 504 }