src/object/warning.c

   1 #include "object/warning.h"
   2 #include "art-definition/art-sword-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/special-defense-types.h"
  33 #include "player/player-status-flags.h"
  34 #include "player/player-status-resist.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             dam = 0;
 119             ignore_wraith_form = TRUE;
 120             break;
 121         }
 122         dam = dam * calc_fire_damage_rate(target_ptr) / 100;
 123
 124     case GF_PSY_SPEAR:
 125         ignore_wraith_form = TRUE;
 126         break;
 127
 128     case GF_ARROW:
 129         if (!target_ptr->blind
 130             && (has_invuln_arrow(target_ptr))) {
 131             dam = 0;
 132             ignore_wraith_form = TRUE;
 133         }
 134         break;
 135
 136     case GF_LITE:
 137         dam = dam * calc_lite_damage_rate(target_ptr, CALC_MAX) / 100;
 138         break;
 139
 140     case GF_DARK:
 141         dam = dam * calc_dark_damage_rate(target_ptr, CALC_MAX) / 100;
 142         if (is_specific_player_race(target_ptr, RACE_VAMPIRE) || (target_ptr->mimic_form == MIMIC_VAMPIRE) || target_ptr->wraith_form)
 143             ignore_wraith_form = TRUE;
 144         break;
 145
 146     case GF_SHARDS:
 147         dam = dam * calc_shards_damage_rate(target_ptr, CALC_MAX) / 100;
 148         break;
 149
 150     case GF_SOUND:
 151         dam = dam * calc_sound_damage_rate(target_ptr, CALC_MAX) / 100;
 152         break;
 153
 154     case GF_CONFUSION:
 155         dam = dam * calc_conf_damage_rate(target_ptr, CALC_MAX) / 100;
 156         break;
 157
 158     case GF_CHAOS:
 159         dam = dam * calc_chaos_damage_rate(target_ptr, CALC_MAX) / 100;
 160         break;
 161
 162     case GF_NETHER:
 163         dam = dam * calc_nether_damage_rate(target_ptr, CALC_MAX) / 100;
 164         if (is_specific_player_race(target_ptr, RACE_SPECTRE)) {
 165             ignore_wraith_form = TRUE;
 166             dam = 0;
 167         }
 168         break;
 169
 170     case GF_DISENCHANT:
 171         dam = dam * calc_disenchant_damage_rate(target_ptr, CALC_MAX) / 100;
 172         break;
 173
 174     case GF_NEXUS:
 175         dam = dam * calc_nexus_damage_rate(target_ptr, CALC_MAX) / 100;
 176         break;
 177
 178     case GF_TIME:
 179         dam = dam * calc_time_damage_rate(target_ptr, CALC_MAX) / 100;
 180         break;
 181
 182     case GF_GRAVITY:
 183         dam = dam * calc_gravity_damage_rate(target_ptr, CALC_MAX) / 100;
 184         break;
 185
 186     case GF_ROCKET:
 187         dam = dam * calc_rocket_damage_rate(target_ptr, CALC_MAX) / 100;
 188         break;
 189
 190     case GF_NUKE:
 191         dam = dam * calc_nuke_damage_rate(target_ptr) / 100;
 192         break;
 193
 194     case GF_DEATH_RAY:
 195         dam = dam * calc_deathray_damage_rate(target_ptr, CALC_MAX) / 100;
 196         if (dam == 0) ignore_wraith_form = TRUE;
 197         break;
 198
 199     case GF_HOLY_FIRE:
 200         dam = dam * calc_holy_fire_damage_rate(target_ptr, CALC_MAX) / 100;
 201         break;
 202
 203     case GF_HELL_FIRE:
 204         dam = dam * calc_hell_fire_damage_rate(target_ptr, CALC_MAX) / 100;
 205         break;
 206
 207     case GF_MIND_BLAST:
 208     case GF_BRAIN_SMASH:
 209         if (100 + rlev / 2 <= MAX(5, target_ptr->skill_sav)) {
 210             dam = 0;
 211             ignore_wraith_form = TRUE;
 212         }
 213
 214         break;
 215
 216     case GF_CAUSE_1:
 217     case GF_CAUSE_2:
 218     case GF_CAUSE_3:
 219     case GF_HAND_DOOM:
 220         if (100 + rlev / 2 <= target_ptr->skill_sav) {
 221             dam = 0;
 222             ignore_wraith_form = TRUE;
 223         }
 224
 225         break;
 226
 227     case GF_CAUSE_4:
 228         if ((100 + rlev / 2 <= target_ptr->skill_sav) && (m_ptr->r_idx != MON_KENSHIROU)) {
 229             dam = 0;
 230             ignore_wraith_form = TRUE;
 231         }
 232
 233         break;
 234     }
 235
 236     if (target_ptr->wraith_form && !ignore_wraith_form) {
 237         dam /= 2;
 238         if (!dam)
 239             dam = 1;
 240     }
 241
 242     if (dam > *max)
 243         *max = dam;
 244 }
 245
 246 /*!
 247  * @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。 /
 248  * Calculate spell damages
 249  * @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
 250  * @param typ 効果属性のID
 251  * @param m_idx 魔法を行使するモンスターのID
 252  * @param max 算出した最大ダメージを返すポインタ
 253  * @return なし
 254  */
 255 void spell_damcalc_by_spellnum(player_type *creature_ptr, monster_spell_type ms_type, EFFECT_ID typ, MONSTER_IDX m_idx, int *max)
 256 {
 257     monster_type *m_ptr = &creature_ptr->current_floor_ptr->m_list[m_idx];
 258     HIT_POINT dam = monspell_damage(creature_ptr, ms_type, m_idx, DAM_MAX);
 259     spell_damcalc(creature_ptr, m_ptr, typ, dam, max);
 260 }
 261
 262 /*!
 263  * @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 /
 264  * Calculate blow damages
 265  * @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
 266  * @param blow_ptr モンスターの打撃能力の構造体参照ポインタ
 267  * @return 算出された最大ダメージを返す。
 268  */
 269 static int blow_damcalc(monster_type *m_ptr, player_type *target_ptr, monster_blow *blow_ptr)
 270 {
 271     int dam = blow_ptr->d_dice * blow_ptr->d_side;
 272     int dummy_max = 0;
 273
 274     if (blow_ptr->method == RBM_EXPLODE) {
 275         dam = (dam + 1) / 2;
 276         spell_damcalc(target_ptr, m_ptr, mbe_info[blow_ptr->effect].explode_type, dam, &dummy_max);
 277         dam = dummy_max;
 278         return dam;
 279     }
 280
 281     ARMOUR_CLASS ac = target_ptr->ac + target_ptr->to_a;
 282     bool check_wraith_form = TRUE;
 283     switch (blow_ptr->effect) {
 284     case RBE_SUPERHURT: {
 285         int tmp_dam = dam - (dam * ((ac < 150) ? ac : 150) / 250);
 286         dam = MAX(dam, tmp_dam * 2);
 287         break;
 288     }
 289
 290     case RBE_HURT:
 291     case RBE_SHATTER:
 292         dam -= (dam * ((ac < 150) ? ac : 150) / 250);
 293         break;
 294
 295     case RBE_ACID:
 296         spell_damcalc(target_ptr, m_ptr, GF_ACID, dam, &dummy_max);
 297         dam = dummy_max;
 298         check_wraith_form = FALSE;
 299         break;
 300
 301     case RBE_ELEC:
 302         spell_damcalc(target_ptr, m_ptr, GF_ELEC, dam, &dummy_max);
 303         dam = dummy_max;
 304         check_wraith_form = FALSE;
 305         break;
 306
 307     case RBE_FIRE:
 308         spell_damcalc(target_ptr, m_ptr, GF_FIRE, dam, &dummy_max);
 309         dam = dummy_max;
 310         check_wraith_form = FALSE;
 311         break;
 312
 313     case RBE_COLD:
 314         spell_damcalc(target_ptr, m_ptr, GF_COLD, dam, &dummy_max);
 315         dam = dummy_max;
 316         check_wraith_form = FALSE;
 317         break;
 318
 319     case RBE_DR_MANA:
 320         dam = 0;
 321         check_wraith_form = FALSE;
 322         break;
 323     }
 324
 325     if (check_wraith_form && target_ptr->wraith_form) {
 326         dam /= 2;
 327         if (!dam)
 328             dam = 1;
 329     }
 330
 331     return dam;
 332 }
 333
 334 /*!
 335  * @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 /
 336  * Examine the grid (xx,yy) and warn the player if there are any danger
 337  * @param xx 危険性を調査するマスのX座標
 338  * @param yy 危険性を調査するマスのY座標
 339  * @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。
 340  */
 341 bool process_warning(player_type *creature_ptr, POSITION xx, POSITION yy)
 342 {
 343     POSITION mx, my;
 344     grid_type *g_ptr;
 345     GAME_TEXT o_name[MAX_NLEN];
 346
 347 #define WARNING_AWARE_RANGE 12
 348     int dam_max = 0;
 349     static int old_damage = 0;
 350
 351     for (mx = xx - WARNING_AWARE_RANGE; mx < xx + WARNING_AWARE_RANGE + 1; mx++) {
 352         for (my = yy - WARNING_AWARE_RANGE; my < yy + WARNING_AWARE_RANGE + 1; my++) {
 353             int dam_max0 = 0;
 354             monster_type *m_ptr;
 355             monster_race *r_ptr;
 356
 357             if (!in_bounds(creature_ptr->current_floor_ptr, my, mx) || (distance(my, mx, yy, xx) > WARNING_AWARE_RANGE))
 358                 continue;
 359
 360             g_ptr = &creature_ptr->current_floor_ptr->grid_array[my][mx];
 361
 362             if (!g_ptr->m_idx)
 363                 continue;
 364
 365             m_ptr = &creature_ptr->current_floor_ptr->m_list[g_ptr->m_idx];
 366
 367             if (monster_csleep_remaining(m_ptr))
 368                 continue;
 369             if (!is_hostile(m_ptr))
 370                 continue;
 371
 372             r_ptr = &r_info[m_ptr->r_idx];
 373
 374             /* Monster spells (only powerful ones)*/
 375             if (projectable(creature_ptr, my, mx, yy, xx)) {
 376                 BIT_FLAGS f4 = r_ptr->flags4;
 377                 BIT_FLAGS f5 = r_ptr->a_ability_flags1;
 378                 BIT_FLAGS f6 = r_ptr->a_ability_flags2;
 379
 380                 if (!(d_info[creature_ptr->dungeon_idx].flags1 & DF1_NO_MAGIC)) {
 381                     if (f4 & RF4_BA_CHAO)
 382                         spell_damcalc_by_spellnum(creature_ptr, MS_BALL_CHAOS, GF_CHAOS, g_ptr->m_idx, &dam_max0);
 383                     if (f5 & RF5_BA_MANA)
 384                         spell_damcalc_by_spellnum(creature_ptr, MS_BALL_MANA, GF_MANA, g_ptr->m_idx, &dam_max0);
 385                     if (f5 & RF5_BA_DARK)
 386                         spell_damcalc_by_spellnum(creature_ptr, MS_BALL_DARK, GF_DARK, g_ptr->m_idx, &dam_max0);
 387                     if (f5 & RF5_BA_LITE)
 388                         spell_damcalc_by_spellnum(creature_ptr, MS_STARBURST, GF_LITE, g_ptr->m_idx, &dam_max0);
 389                     if (f6 & RF6_HAND_DOOM)
 390                         spell_damcalc_by_spellnum(creature_ptr, MS_HAND_DOOM, GF_HAND_DOOM, g_ptr->m_idx, &dam_max0);
 391                     if (f6 & RF6_PSY_SPEAR)
 392                         spell_damcalc_by_spellnum(creature_ptr, MS_PSY_SPEAR, GF_PSY_SPEAR, g_ptr->m_idx, &dam_max0);
 393                 }
 394
 395                 if (f4 & RF4_ROCKET)
 396                     spell_damcalc_by_spellnum(creature_ptr, MS_ROCKET, GF_ROCKET, g_ptr->m_idx, &dam_max0);
 397                 if (f4 & RF4_BR_ACID)
 398                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_ACID, GF_ACID, g_ptr->m_idx, &dam_max0);
 399                 if (f4 & RF4_BR_ELEC)
 400                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_ELEC, GF_ELEC, g_ptr->m_idx, &dam_max0);
 401                 if (f4 & RF4_BR_FIRE)
 402                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_FIRE, GF_FIRE, g_ptr->m_idx, &dam_max0);
 403                 if (f4 & RF4_BR_COLD)
 404                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_COLD, GF_COLD, g_ptr->m_idx, &dam_max0);
 405                 if (f4 & RF4_BR_POIS)
 406                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_POIS, GF_POIS, g_ptr->m_idx, &dam_max0);
 407                 if (f4 & RF4_BR_NETH)
 408                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_NETHER, GF_NETHER, g_ptr->m_idx, &dam_max0);
 409                 if (f4 & RF4_BR_LITE)
 410                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_LITE, GF_LITE, g_ptr->m_idx, &dam_max0);
 411                 if (f4 & RF4_BR_DARK)
 412                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_DARK, GF_DARK, g_ptr->m_idx, &dam_max0);
 413                 if (f4 & RF4_BR_CONF)
 414                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_CONF, GF_CONFUSION, g_ptr->m_idx, &dam_max0);
 415                 if (f4 & RF4_BR_SOUN)
 416                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_SOUND, GF_SOUND, g_ptr->m_idx, &dam_max0);
 417                 if (f4 & RF4_BR_CHAO)
 418                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_CHAOS, GF_CHAOS, g_ptr->m_idx, &dam_max0);
 419                 if (f4 & RF4_BR_DISE)
 420                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_DISEN, GF_DISENCHANT, g_ptr->m_idx, &dam_max0);
 421                 if (f4 & RF4_BR_NEXU)
 422                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_NEXUS, GF_NEXUS, g_ptr->m_idx, &dam_max0);
 423                 if (f4 & RF4_BR_TIME)
 424                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_TIME, GF_TIME, g_ptr->m_idx, &dam_max0);
 425                 if (f4 & RF4_BR_INER)
 426                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_INERTIA, GF_INERTIAL, g_ptr->m_idx, &dam_max0);
 427                 if (f4 & RF4_BR_GRAV)
 428                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_GRAVITY, GF_GRAVITY, g_ptr->m_idx, &dam_max0);
 429                 if (f4 & RF4_BR_SHAR)
 430                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_SHARDS, GF_SHARDS, g_ptr->m_idx, &dam_max0);
 431                 if (f4 & RF4_BR_PLAS)
 432                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_PLASMA, GF_PLASMA, g_ptr->m_idx, &dam_max0);
 433                 if (f4 & RF4_BR_WALL)
 434                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_FORCE, GF_FORCE, g_ptr->m_idx, &dam_max0);
 435                 if (f4 & RF4_BR_MANA)
 436                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_MANA, GF_MANA, g_ptr->m_idx, &dam_max0);
 437                 if (f4 & RF4_BR_NUKE)
 438                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_NUKE, GF_NUKE, g_ptr->m_idx, &dam_max0);
 439                 if (f4 & RF4_BR_DISI)
 440                     spell_damcalc_by_spellnum(creature_ptr, MS_BR_DISI, GF_DISINTEGRATE, g_ptr->m_idx, &dam_max0);
 441             }
 442
 443             /* Monster melee attacks */
 444             if ((r_ptr->flags1 & RF1_NEVER_BLOW) || (d_info[creature_ptr->dungeon_idx].flags1 & DF1_NO_MELEE)) {
 445                 dam_max += dam_max0;
 446                 continue;
 447             }
 448
 449             if (!(mx <= xx + 1 && mx >= xx - 1 && my <= yy + 1 && my >= yy - 1)) {
 450                 dam_max += dam_max0;
 451                 continue;
 452             }
 453
 454             int dam_melee = 0;
 455             for (int m = 0; m < 4; m++) {
 456                 /* Skip non-attacks */
 457                 if (!r_ptr->blow[m].method || (r_ptr->blow[m].method == RBM_SHOOT))
 458                     continue;
 459
 460                 /* Extract the attack info */
 461                 dam_melee += blow_damcalc(m_ptr, creature_ptr, &r_ptr->blow[m]);
 462                 if (r_ptr->blow[m].method == RBM_EXPLODE)
 463                     break;
 464             }
 465
 466             if (dam_melee > dam_max0)
 467                 dam_max0 = dam_melee;
 468             dam_max += dam_max0;
 469         }
 470     }
 471
 472     /* Prevent excessive warning */
 473     if (dam_max > old_damage) {
 474         old_damage = dam_max * 3 / 2;
 475
 476         if (dam_max > creature_ptr->chp / 2) {
 477             object_type *o_ptr = choose_warning_item(creature_ptr);
 478
 479             if (o_ptr)
 480                 describe_flavor(creature_ptr, o_name, o_ptr, (OD_OMIT_PREFIX | OD_NAME_ONLY));
 481             else
 482                 strcpy(o_name, _("体", "body")); /* Warning ability without item */
 483             msg_format(_("%sが鋭く震えた！", "Your %s pulsates sharply!"), o_name);
 484
 485             disturb(creature_ptr, FALSE, TRUE);
 486             return get_check(_("本当にこのまま進むか？", "Really want to go ahead? "));
 487         }
 488     } else
 489         old_damage = old_damage / 2;
 490
 491     g_ptr = &creature_ptr->current_floor_ptr->grid_array[yy][xx];
 492     bool is_warning = (!easy_disarm && is_trap(creature_ptr, g_ptr->feat)) || (g_ptr->mimic && is_trap(creature_ptr, g_ptr->feat));
 493     is_warning &= !one_in_(13);
 494     if (!is_warning)
 495         return TRUE;
 496
 497     object_type *o_ptr = choose_warning_item(creature_ptr);
 498     if (o_ptr != NULL)
 499         describe_flavor(creature_ptr, o_name, o_ptr, (OD_OMIT_PREFIX | OD_NAME_ONLY));
 500     else
 501         strcpy(o_name, _("体", "body")); /* Warning ability without item */
 502     msg_format(_("%sが鋭く震えた！", "Your %s pulsates sharply!"), o_name);
 503     disturb(creature_ptr, FALSE, TRUE);
 504     return get_check(_("本当にこのまま進むか？", "Really want to go ahead? "));
 505 }