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 "player-class.h"
  19 #include "melee.h"
  20 #include "realm-song.h"
  21
  22 /*!
  23  * @brief 警告を放つアイテムを選択する /
  24  * Choose one of items that have warning flag
  25  * Calculate spell damages
  26  * @return 警告を行う
  27  */
  28 object_type *choose_warning_item(void)
  29 {
  30         int i;
  31         int choices[INVEN_TOTAL - INVEN_RARM];
  32         int number = 0;
  33
  34         /* Paranoia -- Player has no warning ability */
  35         if (!p_ptr->warning) return NULL;
  36
  37         /* Search Inventory */
  38         for (i = INVEN_RARM; i < INVEN_TOTAL; i++)
  39         {
  40                 BIT_FLAGS flgs[TR_FLAG_SIZE];
  41                 object_type *o_ptr = &p_ptr->inventory_list[i];
  42
  43                 object_flags(o_ptr, flgs);
  44                 if (have_flag(flgs, TR_WARNING))
  45                 {
  46                         choices[number] = i;
  47                         number++;
  48                 }
  49         }
  50
  51         /* Choice one of them */
  52         return number ? &p_ptr->inventory_list[choices[randint0(number)]] : NULL;
  53 }
  54
  55 /*!
  56  * @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 /
  57  * Calculate spell damages
  58  * @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
  59  * @param typ 効果属性のID
  60  * @param dam 基本ダメージ
  61  * @param max 算出した最大ダメージを返すポインタ
  62  * @return なし
  63  */
  64 static void spell_damcalc(monster_type *m_ptr, EFFECT_ID typ, HIT_POINT dam, int *max)
  65 {
  66         monster_race *r_ptr = &r_info[m_ptr->r_idx];
  67         int          rlev = r_ptr->level;
  68         bool         ignore_wraith_form = FALSE;
  69
  70         /* Vulnerability, resistance and immunity */
  71         switch (typ)
  72         {
  73         case GF_ELEC:
  74                 if (p_ptr->immune_elec)
  75                 {
  76                         dam = 0;
  77                         ignore_wraith_form = TRUE;
  78                 }
  79                 else
  80                 {
  81                         if (p_ptr->muta3 & MUT3_VULN_ELEM) dam *= 2;
  82                         if (p_ptr->special_defense & KATA_KOUKIJIN) dam += dam / 3;
  83                         if (PRACE_IS_(p_ptr, RACE_ANDROID)) dam += dam / 3;
  84                         if (p_ptr->resist_elec) dam = (dam + 2) / 3;
  85                         if (IS_OPPOSE_ELEC())
  86                                 dam = (dam + 2) / 3;
  87                 }
  88                 break;
  89
  90         case GF_POIS:
  91                 if (p_ptr->resist_pois) dam = (dam + 2) / 3;
  92                 if (IS_OPPOSE_POIS()) dam = (dam + 2) / 3;
  93                 break;
  94
  95         case GF_ACID:
  96                 if (p_ptr->immune_acid)
  97                 {
  98                         dam = 0;
  99                         ignore_wraith_form = TRUE;
 100                 }
 101                 else
 102                 {
 103                         if (p_ptr->muta3 & MUT3_VULN_ELEM) dam *= 2;
 104                         if (p_ptr->special_defense & KATA_KOUKIJIN) dam += dam / 3;
 105                         if (p_ptr->resist_acid) dam = (dam + 2) / 3;
 106                         if (IS_OPPOSE_ACID()) dam = (dam + 2) / 3;
 107                 }
 108                 break;
 109
 110         case GF_COLD:
 111         case GF_ICE:
 112                 if (p_ptr->immune_cold)
 113                 {
 114                         dam = 0;
 115                         ignore_wraith_form = TRUE;
 116                 }
 117                 else
 118                 {
 119                         if (p_ptr->muta3 & MUT3_VULN_ELEM) dam *= 2;
 120                         if (p_ptr->special_defense & KATA_KOUKIJIN) dam += dam / 3;
 121                         if (p_ptr->resist_cold) dam = (dam + 2) / 3;
 122                         if (IS_OPPOSE_COLD()) dam = (dam + 2) / 3;
 123                 }
 124                 break;
 125
 126         case GF_FIRE:
 127                 if (p_ptr->immune_fire)
 128                 {
 129                         dam = 0;
 130                         ignore_wraith_form = TRUE;
 131                 }
 132                 else
 133                 {
 134                         if (p_ptr->muta3 & MUT3_VULN_ELEM) dam *= 2;
 135                         if (PRACE_IS_(p_ptr, RACE_ENT)) dam += dam / 3;
 136                         if (p_ptr->special_defense & KATA_KOUKIJIN) dam += dam / 3;
 137                         if (p_ptr->resist_fire) dam = (dam + 2) / 3;
 138                         if (IS_OPPOSE_FIRE()) dam = (dam + 2) / 3;
 139                 }
 140                 break;
 141
 142         case GF_PSY_SPEAR:
 143                 ignore_wraith_form = TRUE;
 144                 break;
 145
 146         case GF_ARROW:
 147                 if (!p_ptr->blind &&
 148                         ((p_ptr->inventory_list[INVEN_RARM].k_idx && (p_ptr->inventory_list[INVEN_RARM].name1 == ART_ZANTETSU)) ||
 149                         (p_ptr->inventory_list[INVEN_LARM].k_idx && (p_ptr->inventory_list[INVEN_LARM].name1 == ART_ZANTETSU))))
 150                 {
 151                         dam = 0;
 152                         ignore_wraith_form = TRUE;
 153                 }
 154                 break;
 155
 156         case GF_LITE:
 157                 if (p_ptr->resist_lite) dam /= 2; /* Worst case of 4 / (d4 + 7) */
 158                 if (PRACE_IS_(p_ptr, RACE_VAMPIRE) || (p_ptr->mimic_form == MIMIC_VAMPIRE)) dam *= 2;
 159                 else if (PRACE_IS_(p_ptr, RACE_S_FAIRY)) dam = dam * 4 / 3;
 160
 161                 /*
 162                  * Cannot use "ignore_wraith_form" strictly (for "random one damage")
 163                  * "dam *= 2;" for later "dam /= 2"
 164                  */
 165                 if (p_ptr->wraith_form) dam *= 2;
 166                 break;
 167
 168         case GF_DARK:
 169                 if (PRACE_IS_(p_ptr, RACE_VAMPIRE) || (p_ptr->mimic_form == MIMIC_VAMPIRE) || p_ptr->wraith_form)
 170                 {
 171                         dam = 0;
 172                         ignore_wraith_form = TRUE;
 173                 }
 174                 else if (p_ptr->resist_dark) dam /= 2; /* Worst case of 4 / (d4 + 7) */
 175                 break;
 176
 177         case GF_SHARDS:
 178                 if (p_ptr->resist_shard) dam = dam * 3 / 4; /* Worst case of 6 / (d4 + 7) */
 179                 break;
 180
 181         case GF_SOUND:
 182                 if (p_ptr->resist_sound) dam = dam * 5 / 8; /* Worst case of 5 / (d4 + 7) */
 183                 break;
 184
 185         case GF_CONFUSION:
 186                 if (p_ptr->resist_conf) dam = dam * 5 / 8; /* Worst case of 5 / (d4 + 7) */
 187                 break;
 188
 189         case GF_CHAOS:
 190                 if (p_ptr->resist_chaos) dam = dam * 3 / 4; /* Worst case of 6 / (d4 + 7) */
 191                 break;
 192
 193         case GF_NETHER:
 194                 if (PRACE_IS_(p_ptr, RACE_SPECTRE))
 195                 {
 196                         dam = 0;
 197                         ignore_wraith_form = TRUE;
 198                 }
 199                 else if (p_ptr->resist_neth) dam = dam * 3 / 4; /* Worst case of 6 / (d4 + 7) */
 200                 break;
 201
 202         case GF_DISENCHANT:
 203                 if (p_ptr->resist_disen) dam = dam * 3 / 4; /* Worst case of 6 / (d4 + 7) */
 204                 break;
 205
 206         case GF_NEXUS:
 207                 if (p_ptr->resist_nexus) dam = dam * 3 / 4; /* Worst case of 6 / (d4 + 7) */
 208                 break;
 209
 210         case GF_TIME:
 211                 if (p_ptr->resist_time) dam /= 2; /* Worst case of 4 / (d4 + 7) */
 212                 break;
 213
 214         case GF_GRAVITY:
 215                 if (p_ptr->levitation) dam = (dam * 2) / 3;
 216                 break;
 217
 218         case GF_ROCKET:
 219                 if (p_ptr->resist_shard) dam /= 2;
 220                 break;
 221
 222         case GF_NUKE:
 223                 if (p_ptr->resist_pois) dam = (2 * dam + 2) / 5;
 224                 if (IS_OPPOSE_POIS()) dam = (2 * dam + 2) / 5;
 225                 break;
 226
 227         case GF_DEATH_RAY:
 228                 if (p_ptr->mimic_form)
 229                 {
 230                         if (mimic_info[p_ptr->mimic_form].MIMIC_FLAGS & MIMIC_IS_NONLIVING)
 231                         {
 232                                 dam = 0;
 233                                 ignore_wraith_form = TRUE;
 234                         }
 235                 }
 236                 else
 237                 {
 238                         switch (p_ptr->prace)
 239                         {
 240                         case RACE_GOLEM:
 241                         case RACE_SKELETON:
 242                         case RACE_ZOMBIE:
 243                         case RACE_VAMPIRE:
 244                         case RACE_DEMON:
 245                         case RACE_SPECTRE:
 246                                 dam = 0;
 247                                 ignore_wraith_form = TRUE;
 248                                 break;
 249                         }
 250                 }
 251                 break;
 252
 253         case GF_HOLY_FIRE:
 254                 if (p_ptr->align > 10) dam /= 2;
 255                 else if (p_ptr->align < -10) dam *= 2;
 256                 break;
 257
 258         case GF_HELL_FIRE:
 259                 if (p_ptr->align > 10) dam *= 2;
 260                 break;
 261
 262         case GF_MIND_BLAST:
 263         case GF_BRAIN_SMASH:
 264                 if (100 + rlev / 2 <= MAX(5, p_ptr->skill_sav))
 265                 {
 266                         dam = 0;
 267                         ignore_wraith_form = TRUE;
 268                 }
 269                 break;
 270
 271         case GF_CAUSE_1:
 272         case GF_CAUSE_2:
 273         case GF_CAUSE_3:
 274         case GF_HAND_DOOM:
 275                 if (100 + rlev / 2 <= p_ptr->skill_sav)
 276                 {
 277                         dam = 0;
 278                         ignore_wraith_form = TRUE;
 279                 }
 280                 break;
 281
 282         case GF_CAUSE_4:
 283                 if ((100 + rlev / 2 <= p_ptr->skill_sav) && (m_ptr->r_idx != MON_KENSHIROU))
 284                 {
 285                         dam = 0;
 286                         ignore_wraith_form = TRUE;
 287                 }
 288                 break;
 289         }
 290
 291         if (p_ptr->wraith_form && !ignore_wraith_form)
 292         {
 293                 dam /= 2;
 294                 if (!dam) dam = 1;
 295         }
 296
 297         if (dam > *max) *max = dam;
 298 }
 299
 300 /*!
 301 * @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。 /
 302 * Calculate spell damages
 303 * @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
 304 * @param typ 効果属性のID
 305 * @param m_idx 魔法を行使するモンスターのID
 306 * @param max 算出した最大ダメージを返すポインタ
 307 * @return なし
 308 */
 309 void spell_damcalc_by_spellnum(int spell_num, EFFECT_ID typ, MONSTER_IDX m_idx, int *max)
 310 {
 311         monster_type *m_ptr = &current_floor_ptr->m_list[m_idx];
 312         HIT_POINT dam = monspell_damage((spell_num), m_idx, DAM_MAX);
 313         spell_damcalc(m_ptr, typ, dam, max);
 314 }
 315
 316 /*!
 317  * @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 /
 318  * Calculate blow damages
 319  * @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
 320  * @param blow_ptr モンスターの打撃能力の構造体参照ポインタ
 321  * @return 算出された最大ダメージを返す。
 322  */
 323 static int blow_damcalc(monster_type *m_ptr, monster_blow *blow_ptr)
 324 {
 325         int  dam = blow_ptr->d_dice * blow_ptr->d_side;
 326         int  dummy_max = 0;
 327         bool check_wraith_form = TRUE;
 328
 329         if (blow_ptr->method != RBM_EXPLODE)
 330         {
 331                 ARMOUR_CLASS ac = p_ptr->ac + p_ptr->to_a;
 332
 333                 switch (blow_ptr->effect)
 334                 {
 335                 case RBE_SUPERHURT:
 336                 {
 337                         int tmp_dam = dam - (dam * ((ac < 150) ? ac : 150) / 250);
 338                         dam = MAX(dam, tmp_dam * 2);
 339                         break;
 340                 }
 341
 342                 case RBE_HURT:
 343                 case RBE_SHATTER:
 344                         dam -= (dam * ((ac < 150) ? ac : 150) / 250);
 345                         break;
 346
 347                 case RBE_ACID:
 348                         spell_damcalc(m_ptr, GF_ACID, dam, &dummy_max);
 349                         dam = dummy_max;
 350                         check_wraith_form = FALSE;
 351                         break;
 352
 353                 case RBE_ELEC:
 354                         spell_damcalc(m_ptr, GF_ELEC, dam, &dummy_max);
 355                         dam = dummy_max;
 356                         check_wraith_form = FALSE;
 357                         break;
 358
 359                 case RBE_FIRE:
 360                         spell_damcalc(m_ptr, GF_FIRE, dam, &dummy_max);
 361                         dam = dummy_max;
 362                         check_wraith_form = FALSE;
 363                         break;
 364
 365                 case RBE_COLD:
 366                         spell_damcalc(m_ptr, GF_COLD, dam, &dummy_max);
 367                         dam = dummy_max;
 368                         check_wraith_form = FALSE;
 369                         break;
 370
 371                 case RBE_DR_MANA:
 372                         dam = 0;
 373                         check_wraith_form = FALSE;
 374                         break;
 375                 }
 376
 377                 if (check_wraith_form && p_ptr->wraith_form)
 378                 {
 379                         dam /= 2;
 380                         if (!dam) dam = 1;
 381                 }
 382         }
 383         else
 384         {
 385                 dam = (dam + 1) / 2;
 386                 spell_damcalc(m_ptr, mbe_info[blow_ptr->effect].explode_type, dam, &dummy_max);
 387                 dam = dummy_max;
 388         }
 389
 390         return dam;
 391 }
 392
 393 /*!
 394  * @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 /
 395  * Examine the grid (xx,yy) and warn the player if there are any danger
 396  * @param xx 危険性を調査するマスのX座標
 397  * @param yy 危険性を調査するマスのY座標
 398  * @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。
 399  */
 400 bool process_warning(POSITION xx, POSITION yy)
 401 {
 402         POSITION mx, my;
 403         grid_type *g_ptr;
 404         GAME_TEXT o_name[MAX_NLEN];
 405
 406 #define WARNING_AWARE_RANGE 12
 407         int dam_max = 0;
 408         static int old_damage = 0;
 409
 410         for (mx = xx - WARNING_AWARE_RANGE; mx < xx + WARNING_AWARE_RANGE + 1; mx++)
 411         {
 412                 for (my = yy - WARNING_AWARE_RANGE; my < yy + WARNING_AWARE_RANGE + 1; my++)
 413                 {
 414                         int dam_max0 = 0;
 415                         monster_type *m_ptr;
 416                         monster_race *r_ptr;
 417
 418                         if (!in_bounds(my, mx) || (distance(my, mx, yy, xx) > WARNING_AWARE_RANGE)) continue;
 419
 420                         g_ptr = &current_floor_ptr->grid_array[my][mx];
 421
 422                         if (!g_ptr->m_idx) continue;
 423
 424                         m_ptr = &current_floor_ptr->m_list[g_ptr->m_idx];
 425
 426                         if (MON_CSLEEP(m_ptr)) continue;
 427                         if (!is_hostile(m_ptr)) continue;
 428
 429                         r_ptr = &r_info[m_ptr->r_idx];
 430
 431                         /* Monster spells (only powerful ones)*/
 432                         if (projectable(my, mx, yy, xx))
 433                         {
 434                                 BIT_FLAGS f4 = r_ptr->flags4;
 435                                 BIT_FLAGS f5 = r_ptr->a_ability_flags1;
 436                                 BIT_FLAGS f6 = r_ptr->a_ability_flags2;
 437
 438                                 if (!(d_info[p_ptr->dungeon_idx].flags1 & DF1_NO_MAGIC))
 439                                 {
 440                                         if (f4 & RF4_BA_CHAO) spell_damcalc_by_spellnum(MS_BALL_CHAOS, GF_CHAOS, g_ptr->m_idx, &dam_max0);
 441                                         if (f5 & RF5_BA_MANA) spell_damcalc_by_spellnum(MS_BALL_MANA, GF_MANA, g_ptr->m_idx, &dam_max0);
 442                                         if (f5 & RF5_BA_DARK) spell_damcalc_by_spellnum(MS_BALL_DARK, GF_DARK, g_ptr->m_idx, &dam_max0);
 443                                         if (f5 & RF5_BA_LITE) spell_damcalc_by_spellnum(MS_STARBURST, GF_LITE, g_ptr->m_idx, &dam_max0);
 444                                         if (f6 & RF6_HAND_DOOM) spell_damcalc_by_spellnum(MS_HAND_DOOM, GF_HAND_DOOM, g_ptr->m_idx, &dam_max0);
 445                                         if (f6 & RF6_PSY_SPEAR) spell_damcalc_by_spellnum(MS_PSY_SPEAR, GF_PSY_SPEAR, g_ptr->m_idx, &dam_max0);
 446                                 }
 447                                 if (f4 & RF4_ROCKET) spell_damcalc_by_spellnum(MS_ROCKET, GF_ROCKET, g_ptr->m_idx, &dam_max0);
 448                                 if (f4 & RF4_BR_ACID) spell_damcalc_by_spellnum(MS_BR_ACID, GF_ACID, g_ptr->m_idx, &dam_max0);
 449                                 if (f4 & RF4_BR_ELEC) spell_damcalc_by_spellnum(MS_BR_ELEC, GF_ELEC, g_ptr->m_idx, &dam_max0);
 450                                 if (f4 & RF4_BR_FIRE) spell_damcalc_by_spellnum(MS_BR_FIRE, GF_FIRE, g_ptr->m_idx, &dam_max0);
 451                                 if (f4 & RF4_BR_COLD) spell_damcalc_by_spellnum(MS_BR_COLD, GF_COLD, g_ptr->m_idx, &dam_max0);
 452                                 if (f4 & RF4_BR_POIS) spell_damcalc_by_spellnum(MS_BR_POIS, GF_POIS, g_ptr->m_idx, &dam_max0);
 453                                 if (f4 & RF4_BR_NETH) spell_damcalc_by_spellnum(MS_BR_NETHER, GF_NETHER, g_ptr->m_idx, &dam_max0);
 454                                 if (f4 & RF4_BR_LITE) spell_damcalc_by_spellnum(MS_BR_LITE, GF_LITE, g_ptr->m_idx, &dam_max0);
 455                                 if (f4 & RF4_BR_DARK) spell_damcalc_by_spellnum(MS_BR_DARK, GF_DARK, g_ptr->m_idx, &dam_max0);
 456                                 if (f4 & RF4_BR_CONF) spell_damcalc_by_spellnum(MS_BR_CONF, GF_CONFUSION, g_ptr->m_idx, &dam_max0);
 457                                 if (f4 & RF4_BR_SOUN) spell_damcalc_by_spellnum(MS_BR_SOUND, GF_SOUND, g_ptr->m_idx, &dam_max0);
 458                                 if (f4 & RF4_BR_CHAO) spell_damcalc_by_spellnum(MS_BR_CHAOS, GF_CHAOS, g_ptr->m_idx, &dam_max0);
 459                                 if (f4 & RF4_BR_DISE) spell_damcalc_by_spellnum(MS_BR_DISEN, GF_DISENCHANT, g_ptr->m_idx, &dam_max0);
 460                                 if (f4 & RF4_BR_NEXU) spell_damcalc_by_spellnum(MS_BR_NEXUS, GF_NEXUS, g_ptr->m_idx, &dam_max0);
 461                                 if (f4 & RF4_BR_TIME) spell_damcalc_by_spellnum(MS_BR_TIME, GF_TIME, g_ptr->m_idx, &dam_max0);
 462                                 if (f4 & RF4_BR_INER) spell_damcalc_by_spellnum(MS_BR_INERTIA, GF_INERTIAL, g_ptr->m_idx, &dam_max0);
 463                                 if (f4 & RF4_BR_GRAV) spell_damcalc_by_spellnum(MS_BR_GRAVITY, GF_GRAVITY, g_ptr->m_idx, &dam_max0);
 464                                 if (f4 & RF4_BR_SHAR) spell_damcalc_by_spellnum(MS_BR_SHARDS, GF_SHARDS, g_ptr->m_idx, &dam_max0);
 465                                 if (f4 & RF4_BR_PLAS) spell_damcalc_by_spellnum(MS_BR_PLASMA, GF_PLASMA, g_ptr->m_idx, &dam_max0);
 466                                 if (f4 & RF4_BR_WALL) spell_damcalc_by_spellnum(MS_BR_FORCE, GF_FORCE, g_ptr->m_idx, &dam_max0);
 467                                 if (f4 & RF4_BR_MANA) spell_damcalc_by_spellnum(MS_BR_MANA, GF_MANA, g_ptr->m_idx, &dam_max0);
 468                                 if (f4 & RF4_BR_NUKE) spell_damcalc_by_spellnum(MS_BR_NUKE, GF_NUKE, g_ptr->m_idx, &dam_max0);
 469                                 if (f4 & RF4_BR_DISI) spell_damcalc_by_spellnum(MS_BR_DISI, GF_DISINTEGRATE, g_ptr->m_idx, &dam_max0);
 470                         }
 471
 472                         /* Monster melee attacks */
 473                         if (!(r_ptr->flags1 & RF1_NEVER_BLOW) && !(d_info[p_ptr->dungeon_idx].flags1 & DF1_NO_MELEE))
 474                         {
 475                                 if (mx <= xx + 1 && mx >= xx - 1 && my <= yy + 1 && my >= yy - 1)
 476                                 {
 477                                         int m;
 478                                         int dam_melee = 0;
 479                                         for (m = 0; m < 4; m++)
 480                                         {
 481                                                 /* Skip non-attacks */
 482                                                 if (!r_ptr->blow[m].method || (r_ptr->blow[m].method == RBM_SHOOT)) continue;
 483
 484                                                 /* Extract the attack info */
 485                                                 dam_melee += blow_damcalc(m_ptr, &r_ptr->blow[m]);
 486                                                 if (r_ptr->blow[m].method == RBM_EXPLODE) break;
 487                                         }
 488                                         if (dam_melee > dam_max0) dam_max0 = dam_melee;
 489                                 }
 490                         }
 491
 492                         /* Contribution from this monster */
 493                         dam_max += dam_max0;
 494                 }
 495         }
 496
 497         /* Prevent excessive warning */
 498         if (dam_max > old_damage)
 499         {
 500                 old_damage = dam_max * 3 / 2;
 501
 502                 if (dam_max > p_ptr->chp / 2)
 503                 {
 504                         object_type *o_ptr = choose_warning_item();
 505
 506                         if (o_ptr)
 507                                 object_desc(o_name, o_ptr, (OD_OMIT_PREFIX | OD_NAME_ONLY));
 508                         else
 509                                 strcpy(o_name, _("体", "body")); /* Warning ability without item */
 510                         msg_format(_("%sが鋭く震えた！", "Your %s pulsates sharply!"), o_name);
 511
 512                         disturb(FALSE, TRUE);
 513                         return get_check(_("本当にこのまま進むか？", "Really want to go ahead? "));
 514                 }
 515         }
 516         else old_damage = old_damage / 2;
 517
 518         g_ptr = &current_floor_ptr->grid_array[yy][xx];
 519         if (((!easy_disarm && is_trap(g_ptr->feat))
 520                 || (g_ptr->mimic && is_trap(g_ptr->feat))) && !one_in_(13))
 521         {
 522                 object_type *o_ptr = choose_warning_item();
 523
 524                 if (o_ptr)
 525                         object_desc(o_name, o_ptr, (OD_OMIT_PREFIX | OD_NAME_ONLY));
 526                 else
 527                         strcpy(o_name, _("体", "body")); /* Warning ability without item */
 528                 msg_format(_("%sが鋭く震えた！", "Your %s pulsates sharply!"), o_name);
 529                 disturb(FALSE, TRUE);
 530                 return get_check(_("本当にこのまま進むか？", "Really want to go ahead? "));
 531         }
 532
 533         return TRUE;
 534 }
 535