src/warning.c

   1
   2
   3 #include "angband.h"
   4 #include "util.h"
   5
   6 #include "artifact.h"
   7 #include "player-move.h"
   8 #include "feature.h"
   9 #include "floor.h"
  10 #include "warning.h"
  11 #include "player-status.h"
  12 #include "monster.h"
  13 #include "monster-spell.h"
  14 #include "spells.h"
  15 #include "object-flavor.h"
  16 #include "dungeon.h"
  17 #include "player-race.h"
  18 #include "melee.h"
  19 #include "realm-song.h"
  20
  21 /*!
  22  * @brief 警告を放つアイテムを選択する /
  23  * Choose one of items that have warning flag
  24  * Calculate spell damages
  25  * @return 警告を行う
  26  */
  27 object_type *choose_warning_item(void)
  28 {
  29         int i;
  30         int choices[INVEN_TOTAL - INVEN_RARM];
  31         int number = 0;
  32
  33         /* Paranoia -- Player has no warning ability */
  34         if (!p_ptr->warning) return NULL;
  35
  36         /* Search Inventory */
  37         for (i = INVEN_RARM; i < INVEN_TOTAL; i++)
  38         {
  39                 BIT_FLAGS flgs[TR_FLAG_SIZE];
  40                 object_type *o_ptr = &p_ptr->inventory_list[i];
  41
  42                 object_flags(o_ptr, flgs);
  43                 if (have_flag(flgs, TR_WARNING))
  44                 {
  45                         choices[number] = i;
  46                         number++;
  47                 }
  48         }
  49
  50         /* Choice one of them */
  51         return number ? &p_ptr->inventory_list[choices[randint0(number)]] : NULL;
  52 }
  53
  54 /*!
  55  * @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 /
  56  * Calculate spell damages
  57  * @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
  58  * @param typ 効果属性のID
  59  * @param dam 基本ダメージ
  60  * @param max 算出した最大ダメージを返すポインタ
  61  * @return なし
  62  */
  63 static void spell_damcalc(monster_type *m_ptr, EFFECT_ID typ, HIT_POINT dam, int *max)
  64 {
  65         monster_race *r_ptr = &r_info[m_ptr->r_idx];
  66         int          rlev = r_ptr->level;
  67         bool         ignore_wraith_form = FALSE;
  68
  69         /* Vulnerability, resistance and immunity */
  70         switch (typ)
  71         {
  72         case GF_ELEC:
  73                 if (p_ptr->immune_elec)
  74                 {
  75                         dam = 0;
  76                         ignore_wraith_form = TRUE;
  77                 }
  78                 else
  79                 {
  80                         if (p_ptr->muta3 & MUT3_VULN_ELEM) dam *= 2;
  81                         if (p_ptr->special_defense & KATA_KOUKIJIN) dam += dam / 3;
  82                         if (prace_is_(RACE_ANDROID)) dam += dam / 3;
  83                         if (p_ptr->resist_elec) dam = (dam + 2) / 3;
  84                         if (IS_OPPOSE_ELEC())
  85                                 dam = (dam + 2) / 3;
  86                 }
  87                 break;
  88
  89         case GF_POIS:
  90                 if (p_ptr->resist_pois) dam = (dam + 2) / 3;
  91                 if (IS_OPPOSE_POIS()) dam = (dam + 2) / 3;
  92                 break;
  93
  94         case GF_ACID:
  95                 if (p_ptr->immune_acid)
  96                 {
  97                         dam = 0;
  98                         ignore_wraith_form = TRUE;
  99                 }
 100                 else
 101                 {
 102                         if (p_ptr->muta3 & MUT3_VULN_ELEM) dam *= 2;
 103                         if (p_ptr->special_defense & KATA_KOUKIJIN) dam += dam / 3;
 104                         if (p_ptr->resist_acid) dam = (dam + 2) / 3;
 105                         if (IS_OPPOSE_ACID()) dam = (dam + 2) / 3;
 106                 }
 107                 break;
 108
 109         case GF_COLD:
 110         case GF_ICE:
 111                 if (p_ptr->immune_cold)
 112                 {
 113                         dam = 0;
 114                         ignore_wraith_form = TRUE;
 115                 }
 116                 else
 117                 {
 118                         if (p_ptr->muta3 & MUT3_VULN_ELEM) dam *= 2;
 119                         if (p_ptr->special_defense & KATA_KOUKIJIN) dam += dam / 3;
 120                         if (p_ptr->resist_cold) dam = (dam + 2) / 3;
 121                         if (IS_OPPOSE_COLD()) dam = (dam + 2) / 3;
 122                 }
 123                 break;
 124
 125         case GF_FIRE:
 126                 if (p_ptr->immune_fire)
 127                 {
 128                         dam = 0;
 129                         ignore_wraith_form = TRUE;
 130                 }
 131                 else
 132                 {
 133                         if (p_ptr->muta3 & MUT3_VULN_ELEM) dam *= 2;
 134                         if (prace_is_(RACE_ENT)) dam += dam / 3;
 135                         if (p_ptr->special_defense & KATA_KOUKIJIN) dam += dam / 3;
 136                         if (p_ptr->resist_fire) dam = (dam + 2) / 3;
 137                         if (IS_OPPOSE_FIRE()) dam = (dam + 2) / 3;
 138                 }
 139                 break;
 140
 141         case GF_PSY_SPEAR:
 142                 ignore_wraith_form = TRUE;
 143                 break;
 144
 145         case GF_ARROW:
 146                 if (!p_ptr->blind &&
 147                         ((p_ptr->inventory_list[INVEN_RARM].k_idx && (p_ptr->inventory_list[INVEN_RARM].name1 == ART_ZANTETSU)) ||
 148                         (p_ptr->inventory_list[INVEN_LARM].k_idx && (p_ptr->inventory_list[INVEN_LARM].name1 == ART_ZANTETSU))))
 149                 {
 150                         dam = 0;
 151                         ignore_wraith_form = TRUE;
 152                 }
 153                 break;
 154
 155         case GF_LITE:
 156                 if (p_ptr->resist_lite) dam /= 2; /* Worst case of 4 / (d4 + 7) */
 157                 if (prace_is_(RACE_VAMPIRE) || (p_ptr->mimic_form == MIMIC_VAMPIRE)) dam *= 2;
 158                 else if (prace_is_(RACE_S_FAIRY)) dam = dam * 4 / 3;
 159
 160                 /*
 161                  * Cannot use "ignore_wraith_form" strictly (for "random one damage")
 162                  * "dam *= 2;" for later "dam /= 2"
 163                  */
 164                 if (p_ptr->wraith_form) dam *= 2;
 165                 break;
 166
 167         case GF_DARK:
 168                 if (prace_is_(RACE_VAMPIRE) || (p_ptr->mimic_form == MIMIC_VAMPIRE) || p_ptr->wraith_form)
 169                 {
 170                         dam = 0;
 171                         ignore_wraith_form = TRUE;
 172                 }
 173                 else if (p_ptr->resist_dark) dam /= 2; /* Worst case of 4 / (d4 + 7) */
 174                 break;
 175
 176         case GF_SHARDS:
 177                 if (p_ptr->resist_shard) dam = dam * 3 / 4; /* Worst case of 6 / (d4 + 7) */
 178                 break;
 179
 180         case GF_SOUND:
 181                 if (p_ptr->resist_sound) dam = dam * 5 / 8; /* Worst case of 5 / (d4 + 7) */
 182                 break;
 183
 184         case GF_CONFUSION:
 185                 if (p_ptr->resist_conf) dam = dam * 5 / 8; /* Worst case of 5 / (d4 + 7) */
 186                 break;
 187
 188         case GF_CHAOS:
 189                 if (p_ptr->resist_chaos) dam = dam * 3 / 4; /* Worst case of 6 / (d4 + 7) */
 190                 break;
 191
 192         case GF_NETHER:
 193                 if (prace_is_(RACE_SPECTRE))
 194                 {
 195                         dam = 0;
 196                         ignore_wraith_form = TRUE;
 197                 }
 198                 else if (p_ptr->resist_neth) dam = dam * 3 / 4; /* Worst case of 6 / (d4 + 7) */
 199                 break;
 200
 201         case GF_DISENCHANT:
 202                 if (p_ptr->resist_disen) dam = dam * 3 / 4; /* Worst case of 6 / (d4 + 7) */
 203                 break;
 204
 205         case GF_NEXUS:
 206                 if (p_ptr->resist_nexus) dam = dam * 3 / 4; /* Worst case of 6 / (d4 + 7) */
 207                 break;
 208
 209         case GF_TIME:
 210                 if (p_ptr->resist_time) dam /= 2; /* Worst case of 4 / (d4 + 7) */
 211                 break;
 212
 213         case GF_GRAVITY:
 214                 if (p_ptr->levitation) dam = (dam * 2) / 3;
 215                 break;
 216
 217         case GF_ROCKET:
 218                 if (p_ptr->resist_shard) dam /= 2;
 219                 break;
 220
 221         case GF_NUKE:
 222                 if (p_ptr->resist_pois) dam = (2 * dam + 2) / 5;
 223                 if (IS_OPPOSE_POIS()) dam = (2 * dam + 2) / 5;
 224                 break;
 225
 226         case GF_DEATH_RAY:
 227                 if (p_ptr->mimic_form)
 228                 {
 229                         if (mimic_info[p_ptr->mimic_form].MIMIC_FLAGS & MIMIC_IS_NONLIVING)
 230                         {
 231                                 dam = 0;
 232                                 ignore_wraith_form = TRUE;
 233                         }
 234                 }
 235                 else
 236                 {
 237                         switch (p_ptr->prace)
 238                         {
 239                         case RACE_GOLEM:
 240                         case RACE_SKELETON:
 241                         case RACE_ZOMBIE:
 242                         case RACE_VAMPIRE:
 243                         case RACE_DEMON:
 244                         case RACE_SPECTRE:
 245                                 dam = 0;
 246                                 ignore_wraith_form = TRUE;
 247                                 break;
 248                         }
 249                 }
 250                 break;
 251
 252         case GF_HOLY_FIRE:
 253                 if (p_ptr->align > 10) dam /= 2;
 254                 else if (p_ptr->align < -10) dam *= 2;
 255                 break;
 256
 257         case GF_HELL_FIRE:
 258                 if (p_ptr->align > 10) dam *= 2;
 259                 break;
 260
 261         case GF_MIND_BLAST:
 262         case GF_BRAIN_SMASH:
 263                 if (100 + rlev / 2 <= MAX(5, p_ptr->skill_sav))
 264                 {
 265                         dam = 0;
 266                         ignore_wraith_form = TRUE;
 267                 }
 268                 break;
 269
 270         case GF_CAUSE_1:
 271         case GF_CAUSE_2:
 272         case GF_CAUSE_3:
 273         case GF_HAND_DOOM:
 274                 if (100 + rlev / 2 <= p_ptr->skill_sav)
 275                 {
 276                         dam = 0;
 277                         ignore_wraith_form = TRUE;
 278                 }
 279                 break;
 280
 281         case GF_CAUSE_4:
 282                 if ((100 + rlev / 2 <= p_ptr->skill_sav) && (m_ptr->r_idx != MON_KENSHIROU))
 283                 {
 284                         dam = 0;
 285                         ignore_wraith_form = TRUE;
 286                 }
 287                 break;
 288         }
 289
 290         if (p_ptr->wraith_form && !ignore_wraith_form)
 291         {
 292                 dam /= 2;
 293                 if (!dam) dam = 1;
 294         }
 295
 296         if (dam > *max) *max = dam;
 297 }
 298
 299 /*!
 300 * @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。 /
 301 * Calculate spell damages
 302 * @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
 303 * @param typ 効果属性のID
 304 * @param m_idx 魔法を行使するモンスターのID
 305 * @param max 算出した最大ダメージを返すポインタ
 306 * @return なし
 307 */
 308 void spell_damcalc_by_spellnum(int spell_num, EFFECT_ID typ, MONSTER_IDX m_idx, int *max)
 309 {
 310         monster_type *m_ptr = &current_floor_ptr->m_list[m_idx];
 311         HIT_POINT dam = monspell_damage((spell_num), m_idx, DAM_MAX);
 312         spell_damcalc(m_ptr, typ, dam, max);
 313 }
 314
 315 /*!
 316  * @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 /
 317  * Calculate blow damages
 318  * @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
 319  * @param blow_ptr モンスターの打撃能力の構造体参照ポインタ
 320  * @return 算出された最大ダメージを返す。
 321  */
 322 static int blow_damcalc(monster_type *m_ptr, monster_blow *blow_ptr)
 323 {
 324         int  dam = blow_ptr->d_dice * blow_ptr->d_side;
 325         int  dummy_max = 0;
 326         bool check_wraith_form = TRUE;
 327
 328         if (blow_ptr->method != RBM_EXPLODE)
 329         {
 330                 ARMOUR_CLASS ac = p_ptr->ac + p_ptr->to_a;
 331
 332                 switch (blow_ptr->effect)
 333                 {
 334                 case RBE_SUPERHURT:
 335                 {
 336                         int tmp_dam = dam - (dam * ((ac < 150) ? ac : 150) / 250);
 337                         dam = MAX(dam, tmp_dam * 2);
 338                         break;
 339                 }
 340
 341                 case RBE_HURT:
 342                 case RBE_SHATTER:
 343                         dam -= (dam * ((ac < 150) ? ac : 150) / 250);
 344                         break;
 345
 346                 case RBE_ACID:
 347                         spell_damcalc(m_ptr, GF_ACID, dam, &dummy_max);
 348                         dam = dummy_max;
 349                         check_wraith_form = FALSE;
 350                         break;
 351
 352                 case RBE_ELEC:
 353                         spell_damcalc(m_ptr, GF_ELEC, dam, &dummy_max);
 354                         dam = dummy_max;
 355                         check_wraith_form = FALSE;
 356                         break;
 357
 358                 case RBE_FIRE:
 359                         spell_damcalc(m_ptr, GF_FIRE, dam, &dummy_max);
 360                         dam = dummy_max;
 361                         check_wraith_form = FALSE;
 362                         break;
 363
 364                 case RBE_COLD:
 365                         spell_damcalc(m_ptr, GF_COLD, dam, &dummy_max);
 366                         dam = dummy_max;
 367                         check_wraith_form = FALSE;
 368                         break;
 369
 370                 case RBE_DR_MANA:
 371                         dam = 0;
 372                         check_wraith_form = FALSE;
 373                         break;
 374                 }
 375
 376                 if (check_wraith_form && p_ptr->wraith_form)
 377                 {
 378                         dam /= 2;
 379                         if (!dam) dam = 1;
 380                 }
 381         }
 382         else
 383         {
 384                 dam = (dam + 1) / 2;
 385                 spell_damcalc(m_ptr, mbe_info[blow_ptr->effect].explode_type, dam, &dummy_max);
 386                 dam = dummy_max;
 387         }
 388
 389         return dam;
 390 }
 391
 392 /*!
 393  * @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 /
 394  * Examine the grid (xx,yy) and warn the player if there are any danger
 395  * @param xx 危険性を調査するマスのX座標
 396  * @param yy 危険性を調査するマスのY座標
 397  * @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。
 398  */
 399 bool process_warning(POSITION xx, POSITION yy)
 400 {
 401         POSITION mx, my;
 402         grid_type *g_ptr;
 403         GAME_TEXT o_name[MAX_NLEN];
 404
 405 #define WARNING_AWARE_RANGE 12
 406         int dam_max = 0;
 407         static int old_damage = 0;
 408
 409         for (mx = xx - WARNING_AWARE_RANGE; mx < xx + WARNING_AWARE_RANGE + 1; mx++)
 410         {
 411                 for (my = yy - WARNING_AWARE_RANGE; my < yy + WARNING_AWARE_RANGE + 1; my++)
 412                 {
 413                         int dam_max0 = 0;
 414                         monster_type *m_ptr;
 415                         monster_race *r_ptr;
 416
 417                         if (!in_bounds(my, mx) || (distance(my, mx, yy, xx) > WARNING_AWARE_RANGE)) continue;
 418
 419                         g_ptr = &current_floor_ptr->grid_array[my][mx];
 420
 421                         if (!g_ptr->m_idx) continue;
 422
 423                         m_ptr = &current_floor_ptr->m_list[g_ptr->m_idx];
 424
 425                         if (MON_CSLEEP(m_ptr)) continue;
 426                         if (!is_hostile(m_ptr)) continue;
 427
 428                         r_ptr = &r_info[m_ptr->r_idx];
 429
 430                         /* Monster spells (only powerful ones)*/
 431                         if (projectable(my, mx, yy, xx))
 432                         {
 433                                 BIT_FLAGS f4 = r_ptr->flags4;
 434                                 BIT_FLAGS f5 = r_ptr->a_ability_flags1;
 435                                 BIT_FLAGS f6 = r_ptr->a_ability_flags2;
 436
 437                                 if (!(d_info[p_ptr->dungeon_idx].flags1 & DF1_NO_MAGIC))
 438                                 {
 439                                         if (f4 & RF4_BA_CHAO) spell_damcalc_by_spellnum(MS_BALL_CHAOS, GF_CHAOS, g_ptr->m_idx, &dam_max0);
 440                                         if (f5 & RF5_BA_MANA) spell_damcalc_by_spellnum(MS_BALL_MANA, GF_MANA, g_ptr->m_idx, &dam_max0);
 441                                         if (f5 & RF5_BA_DARK) spell_damcalc_by_spellnum(MS_BALL_DARK, GF_DARK, g_ptr->m_idx, &dam_max0);
 442                                         if (f5 & RF5_BA_LITE) spell_damcalc_by_spellnum(MS_STARBURST, GF_LITE, g_ptr->m_idx, &dam_max0);
 443                                         if (f6 & RF6_HAND_DOOM) spell_damcalc_by_spellnum(MS_HAND_DOOM, GF_HAND_DOOM, g_ptr->m_idx, &dam_max0);
 444                                         if (f6 & RF6_PSY_SPEAR) spell_damcalc_by_spellnum(MS_PSY_SPEAR, GF_PSY_SPEAR, g_ptr->m_idx, &dam_max0);
 445                                 }
 446                                 if (f4 & RF4_ROCKET) spell_damcalc_by_spellnum(MS_ROCKET, GF_ROCKET, g_ptr->m_idx, &dam_max0);
 447                                 if (f4 & RF4_BR_ACID) spell_damcalc_by_spellnum(MS_BR_ACID, GF_ACID, g_ptr->m_idx, &dam_max0);
 448                                 if (f4 & RF4_BR_ELEC) spell_damcalc_by_spellnum(MS_BR_ELEC, GF_ELEC, g_ptr->m_idx, &dam_max0);
 449                                 if (f4 & RF4_BR_FIRE) spell_damcalc_by_spellnum(MS_BR_FIRE, GF_FIRE, g_ptr->m_idx, &dam_max0);
 450                                 if (f4 & RF4_BR_COLD) spell_damcalc_by_spellnum(MS_BR_COLD, GF_COLD, g_ptr->m_idx, &dam_max0);
 451                                 if (f4 & RF4_BR_POIS) spell_damcalc_by_spellnum(MS_BR_POIS, GF_POIS, g_ptr->m_idx, &dam_max0);
 452                                 if (f4 & RF4_BR_NETH) spell_damcalc_by_spellnum(MS_BR_NETHER, GF_NETHER, g_ptr->m_idx, &dam_max0);
 453                                 if (f4 & RF4_BR_LITE) spell_damcalc_by_spellnum(MS_BR_LITE, GF_LITE, g_ptr->m_idx, &dam_max0);
 454                                 if (f4 & RF4_BR_DARK) spell_damcalc_by_spellnum(MS_BR_DARK, GF_DARK, g_ptr->m_idx, &dam_max0);
 455                                 if (f4 & RF4_BR_CONF) spell_damcalc_by_spellnum(MS_BR_CONF, GF_CONFUSION, g_ptr->m_idx, &dam_max0);
 456                                 if (f4 & RF4_BR_SOUN) spell_damcalc_by_spellnum(MS_BR_SOUND, GF_SOUND, g_ptr->m_idx, &dam_max0);
 457                                 if (f4 & RF4_BR_CHAO) spell_damcalc_by_spellnum(MS_BR_CHAOS, GF_CHAOS, g_ptr->m_idx, &dam_max0);
 458                                 if (f4 & RF4_BR_DISE) spell_damcalc_by_spellnum(MS_BR_DISEN, GF_DISENCHANT, g_ptr->m_idx, &dam_max0);
 459                                 if (f4 & RF4_BR_NEXU) spell_damcalc_by_spellnum(MS_BR_NEXUS, GF_NEXUS, g_ptr->m_idx, &dam_max0);
 460                                 if (f4 & RF4_BR_TIME) spell_damcalc_by_spellnum(MS_BR_TIME, GF_TIME, g_ptr->m_idx, &dam_max0);
 461                                 if (f4 & RF4_BR_INER) spell_damcalc_by_spellnum(MS_BR_INERTIA, GF_INERTIAL, g_ptr->m_idx, &dam_max0);
 462                                 if (f4 & RF4_BR_GRAV) spell_damcalc_by_spellnum(MS_BR_GRAVITY, GF_GRAVITY, g_ptr->m_idx, &dam_max0);
 463                                 if (f4 & RF4_BR_SHAR) spell_damcalc_by_spellnum(MS_BR_SHARDS, GF_SHARDS, g_ptr->m_idx, &dam_max0);
 464                                 if (f4 & RF4_BR_PLAS) spell_damcalc_by_spellnum(MS_BR_PLASMA, GF_PLASMA, g_ptr->m_idx, &dam_max0);
 465                                 if (f4 & RF4_BR_WALL) spell_damcalc_by_spellnum(MS_BR_FORCE, GF_FORCE, g_ptr->m_idx, &dam_max0);
 466                                 if (f4 & RF4_BR_MANA) spell_damcalc_by_spellnum(MS_BR_MANA, GF_MANA, g_ptr->m_idx, &dam_max0);
 467                                 if (f4 & RF4_BR_NUKE) spell_damcalc_by_spellnum(MS_BR_NUKE, GF_NUKE, g_ptr->m_idx, &dam_max0);
 468                                 if (f4 & RF4_BR_DISI) spell_damcalc_by_spellnum(MS_BR_DISI, GF_DISINTEGRATE, g_ptr->m_idx, &dam_max0);
 469                         }
 470
 471                         /* Monster melee attacks */
 472                         if (!(r_ptr->flags1 & RF1_NEVER_BLOW) && !(d_info[p_ptr->dungeon_idx].flags1 & DF1_NO_MELEE))
 473                         {
 474                                 if (mx <= xx + 1 && mx >= xx - 1 && my <= yy + 1 && my >= yy - 1)
 475                                 {
 476                                         int m;
 477                                         int dam_melee = 0;
 478                                         for (m = 0; m < 4; m++)
 479                                         {
 480                                                 /* Skip non-attacks */
 481                                                 if (!r_ptr->blow[m].method || (r_ptr->blow[m].method == RBM_SHOOT)) continue;
 482
 483                                                 /* Extract the attack info */
 484                                                 dam_melee += blow_damcalc(m_ptr, &r_ptr->blow[m]);
 485                                                 if (r_ptr->blow[m].method == RBM_EXPLODE) break;
 486                                         }
 487                                         if (dam_melee > dam_max0) dam_max0 = dam_melee;
 488                                 }
 489                         }
 490
 491                         /* Contribution from this monster */
 492                         dam_max += dam_max0;
 493                 }
 494         }
 495
 496         /* Prevent excessive warning */
 497         if (dam_max > old_damage)
 498         {
 499                 old_damage = dam_max * 3 / 2;
 500
 501                 if (dam_max > p_ptr->chp / 2)
 502                 {
 503                         object_type *o_ptr = choose_warning_item();
 504
 505                         if (o_ptr)
 506                                 object_desc(o_name, o_ptr, (OD_OMIT_PREFIX | OD_NAME_ONLY));
 507                         else
 508                                 strcpy(o_name, _("体", "body")); /* Warning ability without item */
 509                         msg_format(_("%sが鋭く震えた！", "Your %s pulsates sharply!"), o_name);
 510
 511                         disturb(FALSE, TRUE);
 512                         return get_check(_("本当にこのまま進むか？", "Really want to go ahead? "));
 513                 }
 514         }
 515         else old_damage = old_damage / 2;
 516
 517         g_ptr = &current_floor_ptr->grid_array[yy][xx];
 518         if (((!easy_disarm && is_trap(g_ptr->feat))
 519                 || (g_ptr->mimic && is_trap(g_ptr->feat))) && !one_in_(13))
 520         {
 521                 object_type *o_ptr = choose_warning_item();
 522
 523                 if (o_ptr)
 524                         object_desc(o_name, o_ptr, (OD_OMIT_PREFIX | OD_NAME_ONLY));
 525                 else
 526                         strcpy(o_name, _("体", "body")); /* Warning ability without item */
 527                 msg_format(_("%sが鋭く震えた！", "Your %s pulsates sharply!"), o_name);
 528                 disturb(FALSE, TRUE);
 529                 return get_check(_("本当にこのまま進むか？", "Really want to go ahead? "));
 530         }
 531
 532         return TRUE;
 533 }
 534