src/melee2.c

   1 /* File: melee2.c */
   2
   3 /*
   4  * Copyright (c) 1997 Ben Harrison, James E. Wilson, Robert A. Koeneke
   5  *
   6  * This software may be copied and distributed for educational, research,
   7  * and not for profit purposes provided that this copyright and statement
   8  * are included in all such copies.  Other copyrights may also apply.
   9  */
  10
  11 /* Purpose: Monster spells and movement */
  12
  13 /*
  14 * This file has several additions to it by Keldon Jones (keldon@umr.edu)
  15 * to improve the general quality of the AI (version 0.1.1).
  16 */
  17
  18 #include "angband.h"
  19
  20 #define SPEAK_CHANCE 8
  21 #define GRINDNOISE 20
  22 #define CYBERNOISE 20
  23
  24 /*
  25  * Calculate the direction to the next enemy
  26  */
  27 static bool get_enemy_dir(int m_idx, int *mm)
  28 {
  29         int i;
  30         int x = 0, y = 0;
  31         int t_idx;
  32         int start;
  33         int plus = 1;
  34
  35         monster_type *m_ptr = &m_list[m_idx];
  36         monster_race *r_ptr = &r_info[m_ptr->r_idx];
  37
  38         monster_type *t_ptr;
  39
  40         if (riding_t_m_idx && player_bold(m_ptr->fy, m_ptr->fx))
  41         {
  42                 y = m_list[riding_t_m_idx].fy;
  43                 x = m_list[riding_t_m_idx].fx;
  44         }
  45         else if (is_pet(m_ptr) && pet_t_m_idx)
  46         {
  47                 y = m_list[pet_t_m_idx].fy;
  48                 x = m_list[pet_t_m_idx].fx;
  49         }
  50         else
  51         {
  52                 if (p_ptr->inside_battle)
  53                 {
  54                         start = randint1(m_max-1)+m_max;
  55                         if(randint0(2)) plus = -1;
  56                 }
  57                 else start = m_max + 1;
  58
  59                 /* Scan thru all monsters */
  60                 for (i = start; ((i < start + m_max) && (i > start - m_max)); i+=plus)
  61                 {
  62                         int dummy = (i % m_max);
  63
  64                         if (!dummy) continue;
  65
  66                         t_idx = dummy;
  67                         t_ptr = &m_list[t_idx];
  68
  69                         /* The monster itself isn't a target */
  70                         if (t_ptr == m_ptr) continue;
  71
  72                         /* Paranoia -- Skip dead monsters */
  73                         if (!t_ptr->r_idx) continue;
  74
  75                         if (is_pet(m_ptr))
  76                         {
  77                                 /* Hack -- only fight away from player */
  78                                 if (p_ptr->pet_follow_distance < 0)
  79                                 {
  80                                         /* No fighting near player */
  81                                         if (t_ptr->cdis <= (0 - p_ptr->pet_follow_distance))
  82                                         {
  83                                                 continue;
  84                                         }
  85                                 }
  86                                 /* Hack -- no fighting away from player */
  87                                 else if ((m_ptr->cdis < t_ptr->cdis) &&
  88                                                         (t_ptr->cdis > p_ptr->pet_follow_distance))
  89                                 {
  90                                         continue;
  91                                 }
  92
  93                                 if (r_ptr->aaf < t_ptr->cdis) continue;
  94                         }
  95
  96                         /* Monster must be 'an enemy' */
  97                         if (!are_enemies(m_ptr, t_ptr)) continue;
  98
  99                         /* Monster must be projectable if we can't pass through walls */
 100                         if (((r_ptr->flags2 & RF2_PASS_WALL) && ((m_idx != p_ptr->riding) || p_ptr->pass_wall)) ||
 101                             ((r_ptr->flags2 & RF2_KILL_WALL) && (m_idx != p_ptr->riding)))
 102                         {
 103                                 if (!in_disintegration_range(m_ptr->fy, m_ptr->fx, t_ptr->fy, t_ptr->fx)) continue;
 104                         }
 105                         else
 106                         {
 107                                 if (!projectable(m_ptr->fy, m_ptr->fx, t_ptr->fy, t_ptr->fx)) continue;
 108                         }
 109
 110                         /* OK -- we've got a target */
 111                         y = t_ptr->fy;
 112                         x = t_ptr->fx;
 113
 114                         break;
 115                 }
 116                 if (!x && !y) return FALSE;
 117         }
 118
 119         /* Extract the direction */
 120         x -= m_ptr->fx;
 121         y -= m_ptr->fy;
 122
 123         /* North */
 124         if ((y < 0) && (x == 0))
 125         {
 126                 mm[0] = 8;
 127                 mm[1] = 7;
 128                 mm[2] = 9;
 129         }
 130         /* South */
 131         else if ((y > 0) && (x == 0))
 132         {
 133                 mm[0] = 2;
 134                 mm[1] = 1;
 135                 mm[2] = 3;
 136         }
 137         /* East */
 138         else if ((x > 0) && (y == 0))
 139         {
 140                 mm[0] = 6;
 141                 mm[1] = 9;
 142                 mm[2] = 3;
 143         }
 144         /* West */
 145         else if ((x < 0) && (y == 0))
 146         {
 147                 mm[0] = 4;
 148                 mm[1] = 7;
 149                 mm[2] = 1;
 150         }
 151         /* North-West */
 152         else if ((y < 0) && (x < 0))
 153         {
 154                 mm[0] = 7;
 155                 mm[1] = 4;
 156                 mm[2] = 8;
 157         }
 158         /* North-East */
 159         else if ((y < 0) && (x > 0))
 160         {
 161                 mm[0] = 9;
 162                 mm[1] = 6;
 163                 mm[2] = 8;
 164         }
 165         /* South-West */
 166         else if ((y > 0) && (x < 0))
 167         {
 168                 mm[0] = 1;
 169                 mm[1] = 4;
 170                 mm[2] = 2;
 171         }
 172         /* South-East */
 173         else if ((y > 0) && (x > 0))
 174         {
 175                 mm[0] = 3;
 176                 mm[1] = 6;
 177                 mm[2] = 2;
 178         }
 179
 180         /* Found a monster */
 181         return TRUE;
 182 }
 183
 184
 185 /*
 186  * Hack, based on mon_take_hit... perhaps all monster attacks on
 187  * other monsters should use this?
 188  */
 189 void mon_take_hit_mon(int m_idx, int dam, bool *fear, cptr note, int who)
 190 {
 191         monster_type    *m_ptr = &m_list[m_idx];
 192
 193         monster_race    *r_ptr = &r_info[m_ptr->r_idx];
 194
 195         char m_name[160];
 196
 197         bool seen = is_seen(m_ptr);
 198
 199         /* Can the player be aware of this attack? */
 200         bool known = (m_ptr->cdis <= MAX_SIGHT);
 201
 202         /* Extract monster name */
 203         monster_desc(m_name, m_ptr, 0);
 204
 205         /* Redraw (later) if needed */
 206         if (m_ptr->ml)
 207         {
 208                 if (p_ptr->health_who == m_idx) p_ptr->redraw |= (PR_HEALTH);
 209                 if (p_ptr->riding == m_idx) p_ptr->redraw |= (PR_UHEALTH);
 210         }
 211
 212         /* Wake it up */
 213         (void)set_monster_csleep(m_idx, 0);
 214
 215         if (p_ptr->riding && (m_idx == p_ptr->riding)) disturb(1, 0);
 216
 217         if (MON_INVULNER(m_ptr) && randint0(PENETRATE_INVULNERABILITY))
 218         {
 219                 if (seen)
 220                 {
 221 #ifdef JP
 222 msg_format("%^s¤Ï¥À¥á¡¼¥¸¤ò¼õ¤±¤Ê¤¤¡£", m_name);
 223 #else
 224                         msg_format("%^s is unharmed.", m_name);
 225 #endif
 226
 227                 }
 228
 229                 return;
 230         }
 231
 232         if (r_ptr->flagsr & RFR_RES_ALL)
 233         {
 234                 if(dam > 0)
 235                 {
 236                         dam /= 100;
 237                         if((dam == 0) && one_in_(3)) dam = 1;
 238                 }
 239                 if (dam==0)
 240                 {
 241                         if (seen)
 242                         {
 243 #ifdef JP
 244 msg_format("%^s¤Ï¥À¥á¡¼¥¸¤ò¼õ¤±¤Ê¤¤¡£", m_name);
 245 #else
 246                                 msg_format("%^s is unharmed.", m_name);
 247 #endif
 248
 249                         }
 250                         return;
 251                 }
 252         }
 253
 254         /* Hurt it */
 255         m_ptr->hp -= dam;
 256
 257         /* It is dead now... or is it? */
 258         if (m_ptr->hp < 0)
 259         {
 260                 if (((r_ptr->flags1 & (RF1_UNIQUE | RF1_QUESTOR)) ||
 261                     (r_ptr->flags7 & RF7_NAZGUL)) &&
 262                     !p_ptr->inside_battle)
 263                 {
 264                         m_ptr->hp = 1;
 265                 }
 266                 else
 267                 {
 268                         /* Make a sound */
 269                         if (!monster_living(r_ptr))
 270                         {
 271                                 sound(SOUND_N_KILL);
 272                         }
 273                         else
 274                         {
 275                                 sound(SOUND_KILL);
 276                         }
 277
 278                         if (known)
 279                         {
 280                                 monster_desc(m_name, m_ptr, MD_TRUE_NAME);
 281                                 /* Unseen death by normal attack */
 282                                 if (!seen)
 283                                 {
 284                                         mon_fight = TRUE;
 285                                 }
 286                                 /* Death by special attack */
 287                                 else if (note)
 288                                 {
 289 #ifdef JP
 290 msg_format("%^s%s", m_name, note);
 291 #else
 292                                         msg_format("%^s%s", m_name, note);
 293 #endif
 294
 295                                 }
 296                                 /* Death by normal attack -- nonliving monster */
 297                                 else if (!monster_living(r_ptr))
 298                                 {
 299 #ifdef JP
 300 msg_format("%^s¤ÏÇË²õ¤µ¤ì¤¿¡£", m_name);
 301 #else
 302                                         msg_format("%^s is destroyed.", m_name);
 303 #endif
 304
 305                                 }
 306                                 /* Death by normal attack -- living monster */
 307                                 else
 308                                 {
 309 #ifdef JP
 310 msg_format("%^s¤Ï»¦¤µ¤ì¤¿¡£", m_name);
 311 #else
 312                                         msg_format("%^s is killed.", m_name);
 313 #endif
 314
 315                                 }
 316                         }
 317
 318                         monster_gain_exp(who, m_ptr->r_idx);
 319
 320                         /* Generate treasure */
 321                         monster_death(m_idx, FALSE);
 322
 323                         /* Delete the monster */
 324                         delete_monster_idx(m_idx);
 325
 326                         /* Not afraid */
 327                         (*fear) = FALSE;
 328
 329                         /* Monster is dead */
 330                         return;
 331                 }
 332         }
 333
 334 #ifdef ALLOW_FEAR
 335
 336         /* Mega-Hack -- Pain cancels fear */
 337         if (MON_MONFEAR(m_ptr) && (dam > 0))
 338         {
 339                 /* Cure fear */
 340                 if (set_monster_monfear(m_idx, MON_MONFEAR(m_ptr) - randint1(dam / 4)))
 341                 {
 342                         /* No more fear */
 343                         (*fear) = FALSE;
 344                 }
 345         }
 346
 347         /* Sometimes a monster gets scared by damage */
 348         if (!MON_MONFEAR(m_ptr) && !(r_ptr->flags3 & RF3_NO_FEAR))
 349         {
 350                 /* Percentage of fully healthy */
 351                 int percentage = (100L * m_ptr->hp) / m_ptr->maxhp;
 352
 353                 /*
 354                 * Run (sometimes) if at 10% or less of max hit points,
 355                 * or (usually) when hit for half its current hit points
 356                  */
 357                 if (((percentage <= 10) && (randint0(10) < percentage)) ||
 358                         ((dam >= m_ptr->hp) && (randint0(100) < 80)))
 359                 {
 360                         /* Hack -- note fear */
 361                         (*fear) = TRUE;
 362
 363                         /* XXX XXX XXX Hack -- Add some timed fear */
 364                         (void)set_monster_monfear(m_idx, (randint1(10) +
 365                                 (((dam >= m_ptr->hp) && (percentage > 7)) ?
 366                                 20 : ((11 - percentage) * 5))));
 367                 }
 368         }
 369
 370 #endif /* ALLOW_FEAR */
 371
 372         if ((dam > 0) && !is_pet(m_ptr) && !is_friendly(m_ptr) && (who != m_idx))
 373         {
 374                 if (is_pet(&m_list[who]) && !player_bold(m_ptr->target_y, m_ptr->target_x))
 375                 {
 376                         set_target(m_ptr, m_list[who].fy, m_list[who].fx);
 377                 }
 378         }
 379
 380         if (p_ptr->riding && (p_ptr->riding == m_idx) && (dam > 0))
 381         {
 382                 char m_name[80];
 383
 384                 /* Extract monster name */
 385                 monster_desc(m_name, m_ptr, 0);
 386
 387                 if (m_ptr->hp > m_ptr->maxhp/3) dam = (dam + 1) / 2;
 388                 if (rakuba((dam > 200) ? 200 : dam, FALSE))
 389                 {
 390 #ifdef JP
 391 msg_format("%^s¤Ë¿¶¤êÍî¤È¤µ¤ì¤¿¡ª", m_name);
 392 #else
 393                                 msg_format("You have thrown off from %s!", m_name);
 394 #endif
 395                 }
 396         }
 397
 398         /* Not dead yet */
 399         return;
 400 }
 401
 402
 403 /*
 404  * Returns whether a given monster will try to run from the player.
 405  *
 406  * Monsters will attempt to avoid very powerful players.  See below.
 407  *
 408  * Because this function is called so often, little details are important
 409  * for efficiency.  Like not using "mod" or "div" when possible.  And
 410  * attempting to check the conditions in an optimal order.  Note that
 411  * "(x << 2) == (x * 4)" if "x" has enough bits to hold the result.
 412  *
 413  * Note that this function is responsible for about one to five percent
 414  * of the processor use in normal conditions...
 415  */
 416 static int mon_will_run(int m_idx)
 417 {
 418         monster_type *m_ptr = &m_list[m_idx];
 419
 420 #ifdef ALLOW_TERROR
 421
 422         monster_race *r_ptr = &r_info[m_ptr->r_idx];
 423
 424         u16b p_lev, m_lev;
 425         u16b p_chp, p_mhp;
 426         u16b m_chp, m_mhp;
 427         u32b p_val, m_val;
 428
 429 #endif
 430
 431         /* Friends can be commanded to avoid the player */
 432         if (is_pet(m_ptr))
 433         {
 434                 /* Are we trying to avoid the player? */
 435                 return ((p_ptr->pet_follow_distance < 0) &&
 436                                   (m_ptr->cdis <= (0 - p_ptr->pet_follow_distance)));
 437         }
 438
 439         /* Keep monsters from running too far away */
 440         if (m_ptr->cdis > MAX_SIGHT + 5) return (FALSE);
 441
 442         /* All "afraid" monsters will run away */
 443         if (MON_MONFEAR(m_ptr)) return (TRUE);
 444
 445 #ifdef ALLOW_TERROR
 446
 447         /* Nearby monsters will not become terrified */
 448         if (m_ptr->cdis <= 5) return (FALSE);
 449
 450         /* Examine player power (level) */
 451         p_lev = p_ptr->lev;
 452
 453         /* Examine monster power (level plus morale) */
 454         m_lev = r_ptr->level + (m_idx & 0x08) + 25;
 455
 456         /* Optimize extreme cases below */
 457         if (m_lev > p_lev + 4) return (FALSE);
 458         if (m_lev + 4 <= p_lev) return (TRUE);
 459
 460         /* Examine player health */
 461         p_chp = p_ptr->chp;
 462         p_mhp = p_ptr->mhp;
 463
 464         /* Examine monster health */
 465         m_chp = m_ptr->hp;
 466         m_mhp = m_ptr->maxhp;
 467
 468         /* Prepare to optimize the calculation */
 469         p_val = (p_lev * p_mhp) + (p_chp << 2); /* div p_mhp */
 470         m_val = (m_lev * m_mhp) + (m_chp << 2); /* div m_mhp */
 471
 472         /* Strong players scare strong monsters */
 473         if (p_val * m_mhp > m_val * p_mhp) return (TRUE);
 474
 475 #endif
 476
 477         /* Assume no terror */
 478         return (FALSE);
 479 }
 480
 481
 482
 483
 484 /*
 485  * Search spell castable grid
 486  */
 487 static bool get_moves_aux2(int m_idx, int *yp, int *xp)
 488 {
 489         int i, y, x, y1, x1, best = 999;
 490
 491         cave_type *c_ptr;
 492         bool can_open_door = FALSE;
 493         int now_cost;
 494
 495         monster_type *m_ptr = &m_list[m_idx];
 496         monster_race *r_ptr = &r_info[m_ptr->r_idx];
 497
 498         /* Monster location */
 499         y1 = m_ptr->fy;
 500         x1 = m_ptr->fx;
 501
 502         /* Monster can already cast spell to player */
 503         if (projectable(y1, x1, py, px)) return (FALSE);
 504
 505         /* Set current grid cost */
 506         now_cost = cave[y1][x1].cost;
 507         if (now_cost == 0) now_cost = 999;
 508
 509         /* Can monster bash or open doors? */
 510         if (r_ptr->flags2 & (RF2_BASH_DOOR | RF2_OPEN_DOOR))
 511         {
 512                 can_open_door = TRUE;
 513         }
 514
 515         /* Check nearby grids, diagonals first */
 516         for (i = 7; i >= 0; i--)
 517         {
 518                 int cost;
 519
 520                 /* Get the location */
 521                 y = y1 + ddy_ddd[i];
 522                 x = x1 + ddx_ddd[i];
 523
 524                 /* Ignore locations off of edge */
 525                 if (!in_bounds2(y, x)) continue;
 526
 527                 /* Simply move to player */
 528                 if (player_bold(y, x)) return (FALSE);
 529
 530                 c_ptr = &cave[y][x];
 531
 532                 cost = c_ptr->cost;
 533
 534                 /* Monster cannot kill or pass walls */
 535                 if (!(((r_ptr->flags2 & RF2_PASS_WALL) && ((m_idx != p_ptr->riding) || p_ptr->pass_wall)) || ((r_ptr->flags2 & RF2_KILL_WALL) && (m_idx != p_ptr->riding))))
 536                 {
 537                         if (cost == 0) continue;
 538                         if (!can_open_door && is_closed_door(c_ptr->feat)) continue;
 539                 }
 540
 541                 /* Hack -- for kill or pass wall monster.. */
 542                 if (cost == 0) cost = 998;
 543
 544                 if (now_cost < cost) continue;
 545
 546                 if (!projectable(y, x, py, px)) continue;
 547
 548                 /* Accept louder sounds */
 549                 if (best < cost) continue;
 550                 best = cost;
 551
 552                 (*yp) = y1 + ddy_ddd[i];
 553                 (*xp) = x1 + ddx_ddd[i];
 554         }
 555
 556         /* No legal move (?) */
 557         if (best == 999) return (FALSE);
 558
 559         /* Success */
 560         return (TRUE);
 561 }
 562
 563
 564 /*
 565  * Choose the "best" direction for "flowing"
 566  *
 567  * Note that ghosts and rock-eaters are never allowed to "flow",
 568  * since they should move directly towards the player.
 569  *
 570  * Prefer "non-diagonal" directions, but twiddle them a little
 571  * to angle slightly towards the player's actual location.
 572  *
 573  * Allow very perceptive monsters to track old "spoor" left by
 574  * previous locations occupied by the player.  This will tend
 575  * to have monsters end up either near the player or on a grid
 576  * recently occupied by the player (and left via "teleport").
 577  *
 578  * Note that if "smell" is turned on, all monsters get vicious.
 579  *
 580  * Also note that teleporting away from a location will cause
 581  * the monsters who were chasing you to converge on that location
 582  * as long as you are still near enough to "annoy" them without
 583  * being close enough to chase directly.  I have no idea what will
 584  * happen if you combine "smell" with low "aaf" values.
 585  */
 586 static bool get_moves_aux(int m_idx, int *yp, int *xp, bool no_flow)
 587 {
 588         int i, y, x, y1, x1, best;
 589
 590         cave_type *c_ptr;
 591         bool use_scent = FALSE;
 592
 593         monster_type *m_ptr = &m_list[m_idx];
 594         monster_race *r_ptr = &r_info[m_ptr->r_idx];
 595
 596         /* Can monster cast attack spell? */
 597         if (r_ptr->flags4 & (RF4_ATTACK_MASK) ||
 598             r_ptr->flags5 & (RF5_ATTACK_MASK) ||
 599             r_ptr->flags6 & (RF6_ATTACK_MASK))
 600         {
 601                 /* Can move spell castable grid? */
 602                 if (get_moves_aux2(m_idx, yp, xp)) return (TRUE);
 603         }
 604
 605         /* Monster can't flow */
 606         if (no_flow) return (FALSE);
 607
 608         /* Monster can go through rocks */
 609         if ((r_ptr->flags2 & RF2_PASS_WALL) && ((m_idx != p_ptr->riding) || p_ptr->pass_wall)) return (FALSE);
 610         if ((r_ptr->flags2 & RF2_KILL_WALL) && (m_idx != p_ptr->riding)) return (FALSE);
 611
 612         /* Monster location */
 613         y1 = m_ptr->fy;
 614         x1 = m_ptr->fx;
 615
 616         /* Hack -- Player can see us, run towards him */
 617         if (player_has_los_bold(y1, x1) && projectable(py, px, y1, x1)) return (FALSE);
 618
 619         /* Monster grid */
 620         c_ptr = &cave[y1][x1];
 621
 622         /* If we can hear noises, advance towards them */
 623         if (c_ptr->cost)
 624         {
 625                 best = 999;
 626         }
 627
 628         /* Otherwise, try to follow a scent trail */
 629         else if (c_ptr->when)
 630         {
 631                 /* Too old smell */
 632                 if (cave[py][px].when - c_ptr->when > 127) return (FALSE);
 633
 634                 use_scent = TRUE;
 635                 best = 0;
 636         }
 637
 638         /* Otherwise, advance blindly */
 639         else
 640         {
 641                 return (FALSE);
 642         }
 643
 644         /* Check nearby grids, diagonals first */
 645         for (i = 7; i >= 0; i--)
 646         {
 647                 /* Get the location */
 648                 y = y1 + ddy_ddd[i];
 649                 x = x1 + ddx_ddd[i];
 650
 651                 /* Ignore locations off of edge */
 652                 if (!in_bounds2(y, x)) continue;
 653
 654                 c_ptr = &cave[y][x];
 655
 656                 /* We're following a scent trail */
 657                 if (use_scent)
 658                 {
 659                         int when = c_ptr->when;
 660
 661                         /* Accept younger scent */
 662                         if (best > when) continue;
 663                         best = when;
 664                 }
 665
 666                 /* We're using sound */
 667                 else
 668                 {
 669                         int cost;
 670
 671                         if (r_ptr->flags2 & (RF2_BASH_DOOR | RF2_OPEN_DOOR))
 672                                 cost = c_ptr->dist;
 673                         else cost = c_ptr->cost;
 674
 675                         /* Accept louder sounds */
 676                         if ((cost == 0) || (best < cost)) continue;
 677                         best = cost;
 678                 }
 679
 680                 /* Hack -- Save the "twiddled" location */
 681                 (*yp) = py + 16 * ddy_ddd[i];
 682                 (*xp) = px + 16 * ddx_ddd[i];
 683         }
 684
 685         /* No legal move (?) */
 686         if (best == 999 || best == 0) return (FALSE);
 687
 688         /* Success */
 689         return (TRUE);
 690 }
 691
 692
 693 /*
 694 * Provide a location to flee to, but give the player a wide berth.
 695 *
 696 * A monster may wish to flee to a location that is behind the player,
 697 * but instead of heading directly for it, the monster should "swerve"
 698 * around the player so that he has a smaller chance of getting hit.
 699 */
 700 static bool get_fear_moves_aux(int m_idx, int *yp, int *xp)
 701 {
 702         int y, x, y1, x1, fy, fx, gy = 0, gx = 0;
 703         int score = -1;
 704         int i;
 705
 706         monster_type *m_ptr = &m_list[m_idx];
 707
 708         /* Monster location */
 709         fy = m_ptr->fy;
 710         fx = m_ptr->fx;
 711
 712         /* Desired destination */
 713         y1 = fy - (*yp);
 714         x1 = fx - (*xp);
 715
 716         /* Check nearby grids, diagonals first */
 717         for (i = 7; i >= 0; i--)
 718         {
 719                 int dis, s;
 720
 721                 /* Get the location */
 722                 y = fy + ddy_ddd[i];
 723                 x = fx + ddx_ddd[i];
 724
 725                 /* Ignore locations off of edge */
 726                 if (!in_bounds2(y, x)) continue;
 727
 728                 /* Don't move toward player */
 729                 /* if (cave[y][x].dist < 3) continue; */ /* Hmm.. Need it? */
 730
 731                 /* Calculate distance of this grid from our destination */
 732                 dis = distance(y, x, y1, x1);
 733
 734                 /* Score this grid */
 735                 s = 5000 / (dis + 3) - 500 / (cave[y][x].dist + 1);
 736
 737                 /* No negative scores */
 738                 if (s < 0) s = 0;
 739
 740                 /* Ignore lower scores */
 741                 if (s < score) continue;
 742
 743                 /* Save the score and time */
 744                 score = s;
 745
 746                 /* Save the location */
 747                 gy = y;
 748                 gx = x;
 749         }
 750
 751         /* No legal move (?) */
 752         if (score == -1) return (FALSE);
 753
 754         /* Find deltas */
 755         (*yp) = fy - gy;
 756         (*xp) = fx - gx;
 757
 758         /* Success */
 759         return (TRUE);
 760 }
 761
 762 /*
 763  * Hack -- Precompute a bunch of calls to distance() in find_safety() and
 764  * find_hiding().
 765  *
 766  * The pair of arrays dist_offsets_y[n] and dist_offsets_x[n] contain the
 767  * offsets of all the locations with a distance of n from a central point,
 768  * with an offset of (0,0) indicating no more offsets at this distance.
 769  *
 770  * This is, of course, fairly unreadable, but it eliminates multiple loops
 771  * from the previous version.
 772  *
 773  * It is probably better to replace these arrays with code to compute
 774  * the relevant arrays, even if the storage is pre-allocated in hard
 775  * coded sizes.  At the very least, code should be included which is
 776  * able to generate and dump these arrays (ala "los()").  XXX XXX XXX
 777  *
 778  * Also, the storage needs could be halved by using bytes.  XXX XXX XXX
 779  *
 780  * These arrays could be combined into two big arrays, using sub-arrays
 781  * to hold the offsets and lengths of each portion of the sub-arrays, and
 782  * this could perhaps also be used somehow in the "look" code.  XXX XXX XXX
 783  */
 784
 785
 786 static sint d_off_y_0[] =
 787 { 0 };
 788
 789 static sint d_off_x_0[] =
 790 { 0 };
 791
 792
 793 static sint d_off_y_1[] =
 794 { -1, -1, -1, 0, 0, 1, 1, 1, 0 };
 795
 796 static sint d_off_x_1[] =
 797 { -1, 0, 1, -1, 1, -1, 0, 1, 0 };
 798
 799
 800 static sint d_off_y_2[] =
 801 { -1, -1, -2, -2, -2, 0, 0, 1, 1, 2, 2, 2, 0 };
 802
 803 static sint d_off_x_2[] =
 804 { -2, 2, -1, 0, 1, -2, 2, -2, 2, -1, 0, 1, 0 };
 805
 806
 807 static sint d_off_y_3[] =
 808 { -1, -1, -2, -2, -3, -3, -3, 0, 0, 1, 1, 2, 2,
 809   3, 3, 3, 0 };
 810
 811 static sint d_off_x_3[] =
 812 { -3, 3, -2, 2, -1, 0, 1, -3, 3, -3, 3, -2, 2,
 813   -1, 0, 1, 0 };
 814
 815
 816 static sint d_off_y_4[] =
 817 { -1, -1, -2, -2, -3, -3, -3, -3, -4, -4, -4, 0,
 818   0, 1, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 0 };
 819
 820 static sint d_off_x_4[] =
 821 { -4, 4, -3, 3, -2, -3, 2, 3, -1, 0, 1, -4, 4,
 822   -4, 4, -3, 3, -2, -3, 2, 3, -1, 0, 1, 0 };
 823
 824
 825 static sint d_off_y_5[] =
 826 { -1, -1, -2, -2, -3, -3, -4, -4, -4, -4, -5, -5,
 827   -5, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 4, 4, 5, 5,
 828   5, 0 };
 829
 830 static sint d_off_x_5[] =
 831 { -5, 5, -4, 4, -4, 4, -2, -3, 2, 3, -1, 0, 1,
 832   -5, 5, -5, 5, -4, 4, -4, 4, -2, -3, 2, 3, -1,
 833   0, 1, 0 };
 834
 835
 836 static sint d_off_y_6[] =
 837 { -1, -1, -2, -2, -3, -3, -4, -4, -5, -5, -5, -5,
 838   -6, -6, -6, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5,
 839   5, 5, 6, 6, 6, 0 };
 840
 841 static sint d_off_x_6[] =
 842 { -6, 6, -5, 5, -5, 5, -4, 4, -2, -3, 2, 3, -1,
 843   0, 1, -6, 6, -6, 6, -5, 5, -5, 5, -4, 4, -2,
 844   -3, 2, 3, -1, 0, 1, 0 };
 845
 846
 847 static sint d_off_y_7[] =
 848 { -1, -1, -2, -2, -3, -3, -4, -4, -5, -5, -5, -5,
 849   -6, -6, -6, -6, -7, -7, -7, 0, 0, 1, 1, 2, 2, 3,
 850   3, 4, 4, 5, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 0 };
 851
 852 static sint d_off_x_7[] =
 853 { -7, 7, -6, 6, -6, 6, -5, 5, -4, -5, 4, 5, -2,
 854   -3, 2, 3, -1, 0, 1, -7, 7, -7, 7, -6, 6, -6,
 855   6, -5, 5, -4, -5, 4, 5, -2, -3, 2, 3, -1, 0,
 856   1, 0 };
 857
 858
 859 static sint d_off_y_8[] =
 860 { -1, -1, -2, -2, -3, -3, -4, -4, -5, -5, -6, -6,
 861   -6, -6, -7, -7, -7, -7, -8, -8, -8, 0, 0, 1, 1,
 862   2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7,
 863   8, 8, 8, 0 };
 864
 865 static sint d_off_x_8[] =
 866 { -8, 8, -7, 7, -7, 7, -6, 6, -6, 6, -4, -5, 4,
 867   5, -2, -3, 2, 3, -1, 0, 1, -8, 8, -8, 8, -7,
 868   7, -7, 7, -6, 6, -6, 6, -4, -5, 4, 5, -2, -3,
 869   2, 3, -1, 0, 1, 0 };
 870
 871
 872 static sint d_off_y_9[] =
 873 { -1, -1, -2, -2, -3, -3, -4, -4, -5, -5, -6, -6,
 874   -7, -7, -7, -7, -8, -8, -8, -8, -9, -9, -9, 0,
 875   0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 7,
 876   7, 8, 8, 8, 8, 9, 9, 9, 0 };
 877
 878 static sint d_off_x_9[] =
 879 { -9, 9, -8, 8, -8, 8, -7, 7, -7, 7, -6, 6, -4,
 880   -5, 4, 5, -2, -3, 2, 3, -1, 0, 1, -9, 9, -9,
 881   9, -8, 8, -8, 8, -7, 7, -7, 7, -6, 6, -4, -5,
 882   4, 5, -2, -3, 2, 3, -1, 0, 1, 0 };
 883
 884
 885 static sint *dist_offsets_y[10] =
 886 {
 887         d_off_y_0, d_off_y_1, d_off_y_2, d_off_y_3, d_off_y_4,
 888         d_off_y_5, d_off_y_6, d_off_y_7, d_off_y_8, d_off_y_9
 889 };
 890
 891 static sint *dist_offsets_x[10] =
 892 {
 893         d_off_x_0, d_off_x_1, d_off_x_2, d_off_x_3, d_off_x_4,
 894         d_off_x_5, d_off_x_6, d_off_x_7, d_off_x_8, d_off_x_9
 895 };
 896
 897 /*
 898 * Choose a "safe" location near a monster for it to run toward.
 899 *
 900 * A location is "safe" if it can be reached quickly and the player
 901 * is not able to fire into it (it isn't a "clean shot").  So, this will
 902 * cause monsters to "duck" behind walls.  Hopefully, monsters will also
 903 * try to run towards corridor openings if they are in a room.
 904 *
 905 * This function may take lots of CPU time if lots of monsters are
 906 * fleeing.
 907 *
 908 * Return TRUE if a safe location is available.
 909 */
 910 static bool find_safety(int m_idx, int *yp, int *xp)
 911 {
 912         monster_type *m_ptr = &m_list[m_idx];
 913
 914         int fy = m_ptr->fy;
 915         int fx = m_ptr->fx;
 916
 917         int y, x, dy, dx, d, dis, i;
 918         int gy = 0, gx = 0, gdis = 0;
 919
 920         sint *y_offsets;
 921         sint *x_offsets;
 922
 923         cave_type *c_ptr;
 924
 925         /* Start with adjacent locations, spread further */
 926         for (d = 1; d < 10; d++)
 927         {
 928                 /* Get the lists of points with a distance d from (fx, fy) */
 929                 y_offsets = dist_offsets_y[d];
 930                 x_offsets = dist_offsets_x[d];
 931
 932                 /* Check the locations */
 933                 for (i = 0, dx = x_offsets[0], dy = y_offsets[0];
 934                      dx != 0 || dy != 0;
 935                      i++, dx = x_offsets[i], dy = y_offsets[i])
 936                 {
 937                         y = fy + dy;
 938                         x = fx + dx;
 939
 940                         /* Skip illegal locations */
 941                         if (!in_bounds(y, x)) continue;
 942
 943                         c_ptr = &cave[y][x];
 944
 945                         /* Skip locations in a wall */
 946                         if (!monster_can_cross_terrain(c_ptr->feat, &r_info[m_ptr->r_idx], (m_idx == p_ptr->riding) ? CEM_RIDING : 0)) continue;
 947
 948                         /* Check for "availability" (if monsters can flow) */
 949                         if (!(m_ptr->mflag2 & MFLAG2_NOFLOW))
 950                         {
 951                                 /* Ignore grids very far from the player */
 952                                 if (c_ptr->dist == 0) continue;
 953
 954                                 /* Ignore too-distant grids */
 955                                 if (c_ptr->dist > cave[fy][fx].dist + 2 * d) continue;
 956                         }
 957
 958                         /* Check for absence of shot (more or less) */
 959                         if (!projectable(py, px, y, x))
 960                         {
 961                                 /* Calculate distance from player */
 962                                 dis = distance(y, x, py, px);
 963
 964                                 /* Remember if further than previous */
 965                                 if (dis > gdis)
 966                                 {
 967                                         gy = y;
 968                                         gx = x;
 969                                         gdis = dis;
 970                                 }
 971                         }
 972                 }
 973
 974                 /* Check for success */
 975                 if (gdis > 0)
 976                 {
 977                         /* Good location */
 978                         (*yp) = fy - gy;
 979                         (*xp) = fx - gx;
 980
 981                         /* Found safe place */
 982                         return (TRUE);
 983                 }
 984         }
 985
 986         /* No safe place */
 987         return (FALSE);
 988 }
 989
 990
 991 /*
 992  * Choose a good hiding place near a monster for it to run toward.
 993  *
 994  * Pack monsters will use this to "ambush" the player and lure him out
 995  * of corridors into open space so they can swarm him.
 996  *
 997  * Return TRUE if a good location is available.
 998  */
 999 static bool find_hiding(int m_idx, int *yp, int *xp)
1000 {
1001         monster_type *m_ptr = &m_list[m_idx];
1002         monster_race *r_ptr = &r_info[m_ptr->r_idx];
1003
1004         int fy = m_ptr->fy;
1005         int fx = m_ptr->fx;
1006
1007         int y, x, dy, dx, d, dis, i;
1008         int gy = 0, gx = 0, gdis = 999;
1009
1010         sint *y_offsets, *x_offsets;
1011
1012         /* Start with adjacent locations, spread further */
1013         for (d = 1; d < 10; d++)
1014         {
1015                 /* Get the lists of points with a distance d from (fx, fy) */
1016                 y_offsets = dist_offsets_y[d];
1017                 x_offsets = dist_offsets_x[d];
1018
1019                 /* Check the locations */
1020                 for (i = 0, dx = x_offsets[0], dy = y_offsets[0];
1021                      dx != 0 || dy != 0;
1022                      i++, dx = x_offsets[i], dy = y_offsets[i])
1023                 {
1024                         y = fy + dy;
1025                         x = fx + dx;
1026
1027                         /* Skip illegal locations */
1028                         if (!in_bounds(y, x)) continue;
1029
1030                         /* Skip occupied locations */
1031                         if (!monster_can_enter(y, x, r_ptr, 0)) continue;
1032
1033                         /* Check for hidden, available grid */
1034                         if (!projectable(py, px, y, x) && clean_shot(fy, fx, y, x, FALSE))
1035                         {
1036                                 /* Calculate distance from player */
1037                                 dis = distance(y, x, py, px);
1038
1039                                 /* Remember if closer than previous */
1040                                 if (dis < gdis && dis >= 2)
1041                                 {
1042                                         gy = y;
1043                                         gx = x;
1044                                         gdis = dis;
1045                                 }
1046                         }
1047                 }
1048
1049                 /* Check for success */
1050                 if (gdis < 999)
1051                 {
1052                         /* Good location */
1053                         (*yp) = fy - gy;
1054                         (*xp) = fx - gx;
1055
1056                         /* Found good place */
1057                         return (TRUE);
1058                 }
1059         }
1060
1061         /* No good place */
1062         return (FALSE);
1063 }
1064
1065
1066 /*
1067  * Choose "logical" directions for monster movement
1068  */
1069 static bool get_moves(int m_idx, int *mm)
1070 {
1071         monster_type *m_ptr = &m_list[m_idx];
1072         monster_race *r_ptr = &r_info[m_ptr->r_idx];
1073         int          y, ay, x, ax;
1074         int          move_val = 0;
1075         int          y2 = py;
1076         int          x2 = px;
1077         bool         done = FALSE;
1078         bool         will_run = mon_will_run(m_idx);
1079         cave_type    *c_ptr;
1080         bool         no_flow = ((m_ptr->mflag2 & MFLAG2_NOFLOW) && (cave[m_ptr->fy][m_ptr->fx].cost > 2));
1081         bool         can_pass_wall = ((r_ptr->flags2 & RF2_PASS_WALL) && ((m_idx != p_ptr->riding) || p_ptr->pass_wall));
1082
1083         /* Counter attack to an enemy monster */
1084         if (!will_run && m_ptr->target_y)
1085         {
1086                 int t_m_idx = cave[m_ptr->target_y][m_ptr->target_x].m_idx;
1087
1088                 /* The monster must be an enemy, and in LOS */
1089                 if (t_m_idx &&
1090                     are_enemies(m_ptr, &m_list[t_m_idx]) &&
1091                     los(m_ptr->fy, m_ptr->fx, m_ptr->target_y, m_ptr->target_x) &&
1092                     projectable(m_ptr->fy, m_ptr->fx, m_ptr->target_y, m_ptr->target_x))
1093                 {
1094                         /* Extract the "pseudo-direction" */
1095                         y = m_ptr->fy - m_ptr->target_y;
1096                         x = m_ptr->fx - m_ptr->target_x;
1097                         done = TRUE;
1098                 }
1099         }
1100
1101         if (!done && !will_run && is_hostile(m_ptr) &&
1102             (r_ptr->flags1 & RF1_FRIENDS) &&
1103             ((los(m_ptr->fy, m_ptr->fx, py, px) && projectable(m_ptr->fy, m_ptr->fx, py, px)) ||
1104             (cave[m_ptr->fy][m_ptr->fx].dist < MAX_SIGHT / 2)))
1105         {
1106         /*
1107          * Animal packs try to get the player out of corridors
1108          * (...unless they can move through walls -- TY)
1109          */
1110                 if ((r_ptr->flags3 & RF3_ANIMAL) && !can_pass_wall &&
1111                          !(r_ptr->flags2 & RF2_KILL_WALL))
1112                 {
1113                         int i, room = 0;
1114
1115                         /* Count room grids next to player */
1116                         for (i = 0; i < 8; i++)
1117                         {
1118                                 int xx = px + ddx_ddd[i];
1119                                 int yy = py + ddy_ddd[i];
1120
1121                                 if (!in_bounds2(yy, xx)) continue;
1122
1123                                 c_ptr = &cave[yy][xx];
1124
1125                                 /* Check grid */
1126                                 if (monster_can_cross_terrain(c_ptr->feat, r_ptr, 0))
1127                                 {
1128                                         /* One more room grid */
1129                                         room++;
1130                                 }
1131                         }
1132                         if (cave[py][px].info & CAVE_ROOM) room -= 2;
1133                         if (!r_ptr->flags4 && !r_ptr->flags5 && !r_ptr->flags6) room -= 2;
1134
1135                         /* Not in a room and strong player */
1136                         if (room < (8 * (p_ptr->chp + p_ptr->csp)) /
1137                             (p_ptr->mhp + p_ptr->msp))
1138                         {
1139                                 /* Find hiding place */
1140                                 if (find_hiding(m_idx, &y, &x)) done = TRUE;
1141                         }
1142                 }
1143
1144                 /* Monster groups try to surround the player */
1145                 if (!done && (cave[m_ptr->fy][m_ptr->fx].dist < 3))
1146                 {
1147                         int i;
1148
1149                         /* Find an empty square near the player to fill */
1150                         for (i = 0; i < 8; i++)
1151                         {
1152                                 /* Pick squares near player (semi-randomly) */
1153                                 y2 = py + ddy_ddd[(m_idx + i) & 7];
1154                                 x2 = px + ddx_ddd[(m_idx + i) & 7];
1155
1156                                 /* Already there? */
1157                                 if ((m_ptr->fy == y2) && (m_ptr->fx == x2))
1158                                 {
1159                                         /* Attack the player */
1160                                         y2 = py;
1161                                         x2 = px;
1162
1163                                         break;
1164                                 }
1165
1166                                 if (!in_bounds2(y2, x2)) continue;
1167
1168                                 /* Ignore filled grids */
1169                                 if (!monster_can_enter(y2, x2, r_ptr, 0)) continue;
1170
1171                                 /* Try to fill this hole */
1172                                 break;
1173                         }
1174
1175                         /* Extract the new "pseudo-direction" */
1176                         y = m_ptr->fy - y2;
1177                         x = m_ptr->fx - x2;
1178
1179                         /* Done */
1180                         done = TRUE;
1181                 }
1182         }
1183
1184         if (!done)
1185         {
1186                 /* Flow towards the player */
1187                 (void)get_moves_aux(m_idx, &y2, &x2, no_flow);
1188
1189                 /* Extract the "pseudo-direction" */
1190                 y = m_ptr->fy - y2;
1191                 x = m_ptr->fx - x2;
1192
1193                 /* Not done */
1194         }
1195
1196         /* Apply fear if possible and necessary */
1197         if (is_pet(m_ptr) && will_run)
1198         {
1199                 /* XXX XXX Not very "smart" */
1200                 y = (-y), x = (-x);
1201         }
1202         else
1203         {
1204                 if (!done && will_run)
1205                 {
1206                         int tmp_x = (-x);
1207                         int tmp_y = (-y);
1208
1209                         /* Try to find safe place */
1210                         if (find_safety(m_idx, &y, &x))
1211                         {
1212                                 /* Attempt to avoid the player */
1213                                 if (!no_flow)
1214                                 {
1215                                         /* Adjust movement */
1216                                         if (get_fear_moves_aux(m_idx, &y, &x)) done = TRUE;
1217                                 }
1218                         }
1219
1220                         if (!done)
1221                         {
1222                                 /* This is not a very "smart" method XXX XXX */
1223                                 y = tmp_y;
1224                                 x = tmp_x;
1225                         }
1226                 }
1227         }
1228
1229
1230         /* Check for no move */
1231         if (!x && !y) return (FALSE);
1232
1233
1234         /* Extract the "absolute distances" */
1235         ax = ABS(x);
1236         ay = ABS(y);
1237
1238         /* Do something weird */
1239         if (y < 0) move_val += 8;
1240         if (x > 0) move_val += 4;
1241
1242         /* Prevent the diamond maneuvre */
1243         if (ay > (ax << 1)) move_val += 2;
1244         else if (ax > (ay << 1)) move_val++;
1245
1246         /* Extract some directions */
1247         switch (move_val)
1248         {
1249         case 0:
1250                 mm[0] = 9;
1251                 if (ay > ax)
1252                 {
1253                         mm[1] = 8;
1254                         mm[2] = 6;
1255                         mm[3] = 7;
1256                         mm[4] = 3;
1257                 }
1258                 else
1259                 {
1260                         mm[1] = 6;
1261                         mm[2] = 8;
1262                         mm[3] = 3;
1263                         mm[4] = 7;
1264                 }
1265                 break;
1266         case 1:
1267         case 9:
1268                 mm[0] = 6;
1269                 if (y < 0)
1270                 {
1271                         mm[1] = 3;
1272                         mm[2] = 9;
1273                         mm[3] = 2;
1274                         mm[4] = 8;
1275                 }
1276                 else
1277                 {
1278                         mm[1] = 9;
1279                         mm[2] = 3;
1280                         mm[3] = 8;
1281                         mm[4] = 2;
1282                 }
1283                 break;
1284         case 2:
1285         case 6:
1286                 mm[0] = 8;
1287                 if (x < 0)
1288                 {
1289                         mm[1] = 9;
1290                         mm[2] = 7;
1291                         mm[3] = 6;
1292                         mm[4] = 4;
1293                 }
1294                 else
1295                 {
1296                         mm[1] = 7;
1297                         mm[2] = 9;
1298                         mm[3] = 4;
1299                         mm[4] = 6;
1300                 }
1301                 break;
1302         case 4:
1303                 mm[0] = 7;
1304                 if (ay > ax)
1305                 {
1306                         mm[1] = 8;
1307                         mm[2] = 4;
1308                         mm[3] = 9;
1309                         mm[4] = 1;
1310                 }
1311                 else
1312                 {
1313                         mm[1] = 4;
1314                         mm[2] = 8;
1315                         mm[3] = 1;
1316                         mm[4] = 9;
1317                 }
1318                 break;
1319         case 5:
1320         case 13:
1321                 mm[0] = 4;
1322                 if (y < 0)
1323                 {
1324                         mm[1] = 1;
1325                         mm[2] = 7;
1326                         mm[3] = 2;
1327                         mm[4] = 8;
1328                 }
1329                 else
1330                 {
1331                         mm[1] = 7;
1332                         mm[2] = 1;
1333                         mm[3] = 8;
1334                         mm[4] = 2;
1335                 }
1336                 break;
1337         case 8:
1338                 mm[0] = 3;
1339                 if (ay > ax)
1340                 {
1341                         mm[1] = 2;
1342                         mm[2] = 6;
1343                         mm[3] = 1;
1344                         mm[4] = 9;
1345                 }
1346                 else
1347                 {
1348                         mm[1] = 6;
1349                         mm[2] = 2;
1350                         mm[3] = 9;
1351                         mm[4] = 1;
1352                 }
1353                 break;
1354         case 10:
1355         case 14:
1356                 mm[0] = 2;
1357                 if (x < 0)
1358                 {
1359                         mm[1] = 3;
1360                         mm[2] = 1;
1361                         mm[3] = 6;
1362                         mm[4] = 4;
1363                 }
1364                 else
1365                 {
1366                         mm[1] = 1;
1367                         mm[2] = 3;
1368                         mm[3] = 4;
1369                         mm[4] = 6;
1370                 }
1371                 break;
1372         case 12:
1373                 mm[0] = 1;
1374                 if (ay > ax)
1375                 {
1376                         mm[1] = 2;
1377                         mm[2] = 4;
1378                         mm[3] = 3;
1379                         mm[4] = 7;
1380                 }
1381                 else
1382                 {
1383                         mm[1] = 4;
1384                         mm[2] = 2;
1385                         mm[3] = 7;
1386                         mm[4] = 3;
1387                 }
1388                 break;
1389         }
1390
1391         /* Wants to move... */
1392         return (TRUE);
1393 }
1394
1395
1396 static int check_hit2(int power, int level, int ac, int stun)
1397 {
1398         int i, k;
1399
1400         /* Percentile dice */
1401         k = randint0(100);
1402
1403         if (stun && one_in_(2)) return FALSE;
1404
1405         /* Hack -- Always miss or hit */
1406         if (k < 10) return (k < 5);
1407
1408         /* Calculate the "attack quality" */
1409         i = (power + (level * 3));
1410
1411         /* Power and Level compete against Armor */
1412         if ((i > 0) && (randint1(i) > ((ac * 3) / 4))) return (TRUE);
1413
1414         /* Assume miss */
1415         return (FALSE);
1416 }
1417
1418
1419 #define BLOW_EFFECT_TYPE_NONE  0
1420 #define BLOW_EFFECT_TYPE_FEAR  1
1421 #define BLOW_EFFECT_TYPE_SLEEP 2
1422 #define BLOW_EFFECT_TYPE_HEAL  3
1423
1424
1425 /* Monster attacks monster */
1426 static bool monst_attack_monst(int m_idx, int t_idx)
1427 {
1428         monster_type    *m_ptr = &m_list[m_idx];
1429         monster_type    *t_ptr = &m_list[t_idx];
1430
1431         monster_race    *r_ptr = &r_info[m_ptr->r_idx];
1432         monster_race    *tr_ptr = &r_info[t_ptr->r_idx];
1433
1434         int             ap_cnt;
1435         int             ac, rlev, pt;
1436         char            m_name[80], t_name[80];
1437         char            temp[MAX_NLEN];
1438         bool            blinked;
1439         bool            explode = FALSE, touched = FALSE, fear = FALSE;
1440         int             y_saver = t_ptr->fy;
1441         int             x_saver = t_ptr->fx;
1442         int             effect_type;
1443
1444         bool see_m = is_seen(m_ptr);
1445         bool see_t = is_seen(t_ptr);
1446         bool see_either = see_m || see_t;
1447
1448         /* Can the player be aware of this attack? */
1449         bool known = (m_ptr->cdis <= MAX_SIGHT) || (t_ptr->cdis <= MAX_SIGHT);
1450         bool do_silly_attack = (one_in_(2) && p_ptr->image);
1451
1452         /* Cannot attack self */
1453         if (m_idx == t_idx) return FALSE;
1454
1455         /* Not allowed to attack */
1456         if (r_ptr->flags1 & RF1_NEVER_BLOW) return FALSE;
1457
1458         if (d_info[dungeon_type].flags1 & DF1_NO_MELEE) return (FALSE);
1459
1460         /* Total armor */
1461         ac = tr_ptr->ac;
1462
1463         /* Extract the effective monster level */
1464         rlev = ((r_ptr->level >= 1) ? r_ptr->level : 1);
1465
1466         /* Get the monster name (or "it") */
1467         monster_desc(m_name, m_ptr, 0);
1468
1469         /* Get the monster name (or "it") */
1470         monster_desc(t_name, t_ptr, 0);
1471
1472         /* Assume no blink */
1473         blinked = FALSE;
1474
1475         if (!see_either && known)
1476         {
1477                 mon_fight = TRUE;
1478         }
1479
1480         if (p_ptr->riding && (m_idx == p_ptr->riding)) disturb(1, 0);
1481
1482         /* Scan through all four blows */
1483         for (ap_cnt = 0; ap_cnt < 4; ap_cnt++)
1484         {
1485                 bool obvious = FALSE;
1486
1487                 int power = 0;
1488                 int damage = 0;
1489
1490                 cptr act = NULL;
1491
1492                 /* Extract the attack infomation */
1493                 int effect = r_ptr->blow[ap_cnt].effect;
1494                 int method = r_ptr->blow[ap_cnt].method;
1495                 int d_dice = r_ptr->blow[ap_cnt].d_dice;
1496                 int d_side = r_ptr->blow[ap_cnt].d_side;
1497
1498                 if (!m_ptr->r_idx) break;
1499
1500                 /* Stop attacking if the target dies! */
1501                 if (t_ptr->fx != x_saver || t_ptr->fy != y_saver)
1502                         break;
1503
1504                 /* Hack -- no more attacks */
1505                 if (!method) break;
1506
1507                 if (method == RBM_SHOOT) continue;
1508
1509                 /* Extract the attack "power" */
1510                 power = mbe_info[effect].power;
1511
1512                 /* Monster hits */
1513                 if (!effect || check_hit2(power, rlev, ac, MON_STUNNED(m_ptr)))
1514                 {
1515                         /* Wake it up */
1516                         (void)set_monster_csleep(t_idx, 0);
1517
1518                         if (t_ptr->ml)
1519                         {
1520                                 /* Redraw the health bar */
1521                                 if (p_ptr->health_who == t_idx) p_ptr->redraw |= (PR_HEALTH);
1522                                 if (p_ptr->riding == t_idx) p_ptr->redraw |= (PR_UHEALTH);
1523                         }
1524
1525                         /* Describe the attack method */
1526                         switch (method)
1527                         {
1528                         case RBM_HIT:
1529                                 {
1530 #ifdef JP
1531 act = "%s¤ò²¥¤Ã¤¿¡£";
1532 #else
1533                                         act = "hits %s.";
1534 #endif
1535
1536                                         touched = TRUE;
1537                                         break;
1538                                 }
1539
1540                         case RBM_TOUCH:
1541                                 {
1542 #ifdef JP
1543 act = "%s¤ò¿¨¤Ã¤¿¡£";
1544 #else
1545                                         act = "touches %s.";
1546 #endif
1547
1548                                         touched = TRUE;
1549                                         break;
1550                                 }
1551
1552                         case RBM_PUNCH:
1553                                 {
1554 #ifdef JP
1555 act = "%s¤ò¥Ñ¥ó¥Á¤·¤¿¡£";
1556 #else
1557                                         act = "punches %s.";
1558 #endif
1559
1560                                         touched = TRUE;
1561                                         break;
1562                                 }
1563
1564                         case RBM_KICK:
1565                                 {
1566 #ifdef JP
1567 act = "%s¤ò½³¤Ã¤¿¡£";
1568 #else
1569                                         act = "kicks %s.";
1570 #endif
1571
1572                                         touched = TRUE;
1573                                         break;
1574                                 }
1575
1576                         case RBM_CLAW:
1577                                 {
1578 #ifdef JP
1579 act = "%s¤ò¤Ò¤Ã¤«¤¤¤¿¡£";
1580 #else
1581                                         act = "claws %s.";
1582 #endif
1583
1584                                         touched = TRUE;
1585                                         break;
1586                                 }
1587
1588                         case RBM_BITE:
1589                                 {
1590 #ifdef JP
1591 act = "%s¤ò³ú¤ó¤À¡£";
1592 #else
1593                                         act = "bites %s.";
1594 #endif
1595
1596                                         touched = TRUE;
1597                                         break;
1598                                 }
1599
1600                         case RBM_STING:
1601                                 {
1602 #ifdef JP
1603 act = "%s¤ò»É¤·¤¿¡£";
1604 #else
1605                                         act = "stings %s.";
1606 #endif
1607
1608                                         touched = TRUE;
1609                                         break;
1610                                 }
1611
1612                         case RBM_SLASH:
1613                                 {
1614 #ifdef JP
1615 act = "%s¤ò»Â¤Ã¤¿¡£";
1616 #else
1617                                         act = "slashes %s.";
1618 #endif
1619
1620                                         break;
1621                                 }
1622
1623                         case RBM_BUTT:
1624                                 {
1625 #ifdef JP
1626 act = "%s¤ò³Ñ¤ÇÆÍ¤¤¤¿¡£";
1627 #else
1628                                         act = "butts %s.";
1629 #endif
1630
1631                                         touched = TRUE;
1632                                         break;
1633                                 }
1634
1635                         case RBM_CRUSH:
1636                                 {
1637 #ifdef JP
1638 act = "%s¤ËÂÎÅö¤ê¤·¤¿¡£";
1639 #else
1640                                         act = "crushes %s.";
1641 #endif
1642
1643                                         touched = TRUE;
1644                                         break;
1645                                 }
1646
1647                         case RBM_ENGULF:
1648                                 {
1649 #ifdef JP
1650 act = "%s¤ò°û¤ß¹þ¤ó¤À¡£";
1651 #else
1652                                         act = "engulfs %s.";
1653 #endif
1654
1655                                         touched = TRUE;
1656                                         break;
1657                                 }
1658
1659                         case RBM_CHARGE:
1660                                 {
1661 #ifdef JP
1662 act = "%s¤ËÀÁµá½ñ¤ò¤è¤³¤·¤¿¡£";
1663 #else
1664                                         act = "charges %s.";
1665 #endif
1666
1667                                         touched = TRUE;
1668                                         break;
1669                                 }
1670
1671                         case RBM_CRAWL:
1672                                 {
1673 #ifdef JP
1674 act = "%s¤ÎÂÎ¤Î¾å¤òÇç¤¤²ó¤Ã¤¿¡£";
1675 #else
1676                                         act = "crawls on %s.";
1677 #endif
1678
1679                                         touched = TRUE;
1680                                         break;
1681                                 }
1682
1683                         case RBM_DROOL:
1684                                 {
1685 #ifdef JP
1686 act = "%s¤Ë¤è¤À¤ì¤ò¤¿¤é¤·¤¿¡£";
1687 #else
1688                                         act = "drools on %s.";
1689 #endif
1690
1691                                         touched = FALSE;
1692                                         break;
1693                                 }
1694
1695                         case RBM_SPIT:
1696                                 {
1697 #ifdef JP
1698 act = "%s¤ËÂÃ¤òÅÇ¤¤¤¿¡£";
1699 #else
1700                                         act = "spits on %s.";
1701 #endif
1702
1703                                         touched = FALSE;
1704                                         break;
1705                                 }
1706
1707                         case RBM_EXPLODE:
1708                                 {
1709                                         if (see_either) disturb(1, 0);
1710 #ifdef JP
1711 act = "ÇúÈ¯¤·¤¿¡£";
1712 #else
1713                                         act = "explodes.";
1714 #endif
1715
1716                                         explode = TRUE;
1717                                         touched = FALSE;
1718                                         break;
1719                                 }
1720
1721                         case RBM_GAZE:
1722                                 {
1723 #ifdef JP
1724 act = "%s¤ò¤Ë¤é¤ó¤À¡£";
1725 #else
1726                                         act = "gazes at %s.";
1727 #endif
1728
1729                                         touched = FALSE;
1730                                         break;
1731                                 }
1732
1733                         case RBM_WAIL:
1734                                 {
1735 #ifdef JP
1736 act = "%s¤Ëµã¤¤Ä¤¤¤¿¡£";
1737 #else
1738                                         act = "wails at %s.";
1739 #endif
1740
1741                                         touched = FALSE;
1742                                         break;
1743                                 }
1744
1745                         case RBM_SPORE:
1746                                 {
1747 #ifdef JP
1748 act = "%s¤ËË¦»Ò¤òÈô¤Ð¤·¤¿¡£";
1749 #else
1750                                         act = "releases spores at %s.";
1751 #endif
1752
1753                                         touched = FALSE;
1754                                         break;
1755                                 }
1756
1757                         case RBM_XXX4:
1758                                 {
1759 #ifdef JP
1760 act = "%s¤ËXXX4¤òÈô¤Ð¤·¤¿¡£";
1761 #else
1762                                         act = "projects XXX4's at %s.";
1763 #endif
1764
1765                                         touched = FALSE;
1766                                         break;
1767                                 }
1768
1769                         case RBM_BEG:
1770                                 {
1771 #ifdef JP
1772 act = "%s¤Ë¶â¤ò¤»¤¬¤ó¤À¡£";
1773 #else
1774                                         act = "begs %s for money.";
1775 #endif
1776
1777                                         touched = FALSE;
1778                                         break;
1779                                 }
1780
1781                         case RBM_INSULT:
1782                                 {
1783 #ifdef JP
1784 act = "%s¤òÉî¿«¤·¤¿¡£";
1785 #else
1786                                         act = "insults %s.";
1787 #endif
1788
1789                                         touched = FALSE;
1790                                         break;
1791                                 }
1792
1793                         case RBM_MOAN:
1794                                 {
1795 #ifdef JP
1796 act = "%s¤Ë¤à¤«¤Ã¤Æ¤¦¤á¤¤¤¿¡£";
1797 #else
1798                                         act = "moans at %s.";
1799 #endif
1800
1801                                         touched = FALSE;
1802                                         break;
1803                                 }
1804
1805                         case RBM_SHOW:
1806                                 {
1807 #ifdef JP
1808 act = "%s¤Ë¤à¤«¤Ã¤Æ²Î¤Ã¤¿¡£";
1809 #else
1810                                         act = "sings to %s.";
1811 #endif
1812
1813                                         touched = FALSE;
1814                                         break;
1815                                 }
1816                         }
1817
1818                         /* Message */
1819                         if (act && see_either)
1820                         {
1821 #ifdef JP
1822                                 if (do_silly_attack) act = silly_attacks2[randint0(MAX_SILLY_ATTACK)];
1823                                 strfmt(temp, act, t_name);
1824                                 msg_format("%^s¤Ï%s", m_name, temp);
1825 #else
1826                                 if (do_silly_attack)
1827                                 {
1828                                         act = silly_attacks[randint0(MAX_SILLY_ATTACK)];
1829                                         strfmt(temp, "%s %s.", act, t_name);
1830                                 }
1831                                 else strfmt(temp, act, t_name);
1832                                 msg_format("%^s %s", m_name, temp);
1833 #endif
1834                         }
1835
1836                         /* Hack -- assume all attacks are obvious */
1837                         obvious = TRUE;
1838
1839                         /* Roll out the damage */
1840                         damage = damroll(d_dice, d_side);
1841
1842                         /* Assume no effect */
1843                         effect_type = BLOW_EFFECT_TYPE_NONE;
1844
1845                         pt = GF_MISSILE;
1846
1847                         /* Apply appropriate damage */
1848                         switch (effect)
1849                         {
1850                         case 0:
1851                         case RBE_DR_MANA:
1852                                 damage = pt = 0;
1853                                 break;
1854
1855                         case RBE_SUPERHURT:
1856                                 if ((randint1(rlev*2+250) > (ac+200)) || one_in_(13))
1857                                 {
1858                                         int tmp_damage = damage - (damage * ((ac < 150) ? ac : 150) / 250);
1859                                         damage = MAX(damage, tmp_damage * 2);
1860                                         break;
1861                                 }
1862
1863                                 /* Fall through */
1864
1865                         case RBE_HURT:
1866                                 damage -= (damage * ((ac < 150) ? ac : 150) / 250);
1867                                 break;
1868
1869                         case RBE_POISON:
1870                         case RBE_DISEASE:
1871                                 pt = GF_POIS;
1872                                 break;
1873
1874                         case RBE_UN_BONUS:
1875                         case RBE_UN_POWER:
1876                                 pt = GF_DISENCHANT;
1877                                 break;
1878
1879                         case RBE_EAT_ITEM:
1880                         case RBE_EAT_GOLD:
1881                                 if ((p_ptr->riding != m_idx) && one_in_(2)) blinked = TRUE;
1882                                 break;
1883
1884                         case RBE_EAT_FOOD:
1885                         case RBE_EAT_LITE:
1886                         case RBE_BLIND:
1887                         case RBE_LOSE_STR:
1888                         case RBE_LOSE_INT:
1889                         case RBE_LOSE_WIS:
1890                         case RBE_LOSE_DEX:
1891                         case RBE_LOSE_CON:
1892                         case RBE_LOSE_CHR:
1893                         case RBE_LOSE_ALL:
1894                                 break;
1895
1896                         case RBE_ACID:
1897                                 pt = GF_ACID;
1898                                 break;
1899
1900                         case RBE_ELEC:
1901                                 pt = GF_ELEC;
1902                                 break;
1903
1904                         case RBE_FIRE:
1905                                 pt = GF_FIRE;
1906                                 break;
1907
1908                         case RBE_COLD:
1909                                 pt = GF_COLD;
1910                                 break;
1911
1912                         case RBE_CONFUSE:
1913                                 pt = GF_CONFUSION;
1914                                 break;
1915
1916                         case RBE_TERRIFY:
1917                                 effect_type = BLOW_EFFECT_TYPE_FEAR;
1918                                 break;
1919
1920                         case RBE_PARALYZE:
1921                                 effect_type = BLOW_EFFECT_TYPE_SLEEP;
1922                                 break;
1923
1924                         case RBE_SHATTER:
1925                                 damage -= (damage * ((ac < 150) ? ac : 150) / 250);
1926                                 if (damage > 23) earthquake_aux(m_ptr->fy, m_ptr->fx, 8, m_idx);
1927                                 break;
1928
1929                         case RBE_EXP_10:
1930                         case RBE_EXP_20:
1931                         case RBE_EXP_40:
1932                         case RBE_EXP_80:
1933                                 pt = GF_NETHER;
1934                                 break;
1935
1936                         case RBE_TIME:
1937                                 pt = GF_TIME;
1938                                 break;
1939
1940                         case RBE_EXP_VAMP:
1941                                 pt = GF_OLD_DRAIN;
1942                                 effect_type = BLOW_EFFECT_TYPE_HEAL;
1943                                 break;
1944
1945                         default:
1946                                 pt = 0;
1947                                 break;
1948                         }
1949
1950                         if (pt)
1951                         {
1952                                 /* Do damage if not exploding */
1953                                 if (!explode)
1954                                 {
1955                                         project(m_idx, 0, t_ptr->fy, t_ptr->fx,
1956                                                 damage, pt, PROJECT_KILL | PROJECT_STOP | PROJECT_AIMED, -1);
1957                                 }
1958
1959                                 switch (effect_type)
1960                                 {
1961                                 case BLOW_EFFECT_TYPE_FEAR:
1962                                         project(m_idx, 0, t_ptr->fy, t_ptr->fx,
1963                                                 damage, GF_TURN_ALL, PROJECT_KILL | PROJECT_STOP | PROJECT_AIMED, -1);
1964                                         break;
1965
1966                                 case BLOW_EFFECT_TYPE_SLEEP:
1967                                         project(m_idx, 0, t_ptr->fy, t_ptr->fx,
1968                                                 r_ptr->level, GF_OLD_SLEEP, PROJECT_KILL | PROJECT_STOP | PROJECT_AIMED, -1);
1969                                         break;
1970
1971                                 case BLOW_EFFECT_TYPE_HEAL:
1972                                         if ((monster_living(tr_ptr)) && (damage > 2))
1973                                         {
1974                                                 bool did_heal = FALSE;
1975
1976                                                 if (m_ptr->hp < m_ptr->maxhp) did_heal = TRUE;
1977
1978                                                 /* Heal */
1979                                                 m_ptr->hp += damroll(4, damage / 6);
1980                                                 if (m_ptr->hp > m_ptr->maxhp) m_ptr->hp = m_ptr->maxhp;
1981
1982                                                 /* Redraw (later) if needed */
1983                                                 if (p_ptr->health_who == m_idx) p_ptr->redraw |= (PR_HEALTH);
1984                                                 if (p_ptr->riding == m_idx) p_ptr->redraw |= (PR_UHEALTH);
1985
1986                                                 /* Special message */
1987                                                 if (see_m && did_heal)
1988                                                 {
1989 #ifdef JP
1990                                                         msg_format("%s¤ÏÂÎÎÏ¤ò²óÉü¤·¤¿¤è¤¦¤À¡£", m_name);
1991 #else
1992                                                         msg_format("%^s appears healthier.", m_name);
1993 #endif
1994                                                 }
1995                                         }
1996                                         break;
1997                                 }
1998
1999                                 if (touched)
2000                                 {
2001                                         /* Aura fire */
2002                                         if ((tr_ptr->flags2 & RF2_AURA_FIRE) && m_ptr->r_idx)
2003                                         {
2004                                                 if (!(r_ptr->flagsr & RFR_EFF_IM_FIRE_MASK))
2005                                                 {
2006                                                         if (see_either)
2007                                                         {
2008 #ifdef JP
2009                                                                 msg_format("%^s¤ÏÆÍÁ³Ç®¤¯¤Ê¤Ã¤¿¡ª", m_name);
2010 #else
2011                                                                 msg_format("%^s is suddenly very hot!", m_name);
2012 #endif
2013                                                         }
2014                                                         if (m_ptr->ml && is_original_ap_and_seen(t_ptr)) tr_ptr->r_flags2 |= RF2_AURA_FIRE;
2015                                                         project(t_idx, 0, m_ptr->fy, m_ptr->fx,
2016                                                                 damroll (1 + ((tr_ptr->level) / 26),
2017                                                                 1 + ((tr_ptr->level) / 17)),
2018                                                                 GF_FIRE, PROJECT_KILL | PROJECT_STOP | PROJECT_AIMED, -1);
2019                                                 }
2020                                                 else
2021                                                 {
2022                                                         if (is_original_ap_and_seen(m_ptr)) r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_FIRE_MASK);
2023                                                 }
2024                                         }
2025
2026                                         /* Aura cold */
2027                                         if ((tr_ptr->flags3 & RF3_AURA_COLD) && m_ptr->r_idx)
2028                                         {
2029                                                 if (!(r_ptr->flagsr & RFR_EFF_IM_COLD_MASK))
2030                                                 {
2031                                                         if (see_either)
2032                                                         {
2033 #ifdef JP
2034                                                                 msg_format("%^s¤ÏÆÍÁ³´¨¤¯¤Ê¤Ã¤¿¡ª", m_name);
2035 #else
2036                                                                 msg_format("%^s is suddenly very cold!", m_name);
2037 #endif
2038                                                         }
2039                                                         if (m_ptr->ml && is_original_ap_and_seen(t_ptr)) tr_ptr->r_flags3 |= RF3_AURA_COLD;
2040                                                         project(t_idx, 0, m_ptr->fy, m_ptr->fx,
2041                                                                 damroll (1 + ((tr_ptr->level) / 26),
2042                                                                 1 + ((tr_ptr->level) / 17)),
2043                                                                 GF_COLD, PROJECT_KILL | PROJECT_STOP | PROJECT_AIMED, -1);
2044                                                 }
2045                                                 else
2046                                                 {
2047                                                         if (is_original_ap_and_seen(m_ptr)) r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_COLD_MASK);
2048                                                 }
2049                                         }
2050
2051                                         /* Aura elec */
2052                                         if ((tr_ptr->flags2 & RF2_AURA_ELEC) && m_ptr->r_idx)
2053                                         {
2054                                                 if (!(r_ptr->flagsr & RFR_EFF_IM_ELEC_MASK))
2055                                                 {
2056                                                         if (see_either)
2057                                                         {
2058 #ifdef JP
2059                                                                 msg_format("%^s¤ÏÅÅ·â¤ò¿©¤é¤Ã¤¿¡ª", m_name);
2060 #else
2061                                                                 msg_format("%^s gets zapped!", m_name);
2062 #endif
2063                                                         }
2064                                                         if (m_ptr->ml && is_original_ap_and_seen(t_ptr)) tr_ptr->r_flags2 |= RF2_AURA_ELEC;
2065                                                         project(t_idx, 0, m_ptr->fy, m_ptr->fx,
2066                                                                 damroll (1 + ((tr_ptr->level) / 26),
2067                                                                 1 + ((tr_ptr->level) / 17)),
2068                                                                 GF_ELEC, PROJECT_KILL | PROJECT_STOP | PROJECT_AIMED, -1);
2069                                                 }
2070                                                 else
2071                                                 {
2072                                                         if (is_original_ap_and_seen(m_ptr)) r_ptr->r_flagsr |= (r_ptr->flagsr & RFR_EFF_IM_ELEC_MASK);
2073                                                 }
2074                                         }
2075                                 }
2076                         }
2077                 }
2078
2079                 /* Monster missed player */
2080                 else
2081                 {
2082                         /* Analyze failed attacks */
2083                         switch (method)
2084                         {
2085                         case RBM_HIT:
2086                         case RBM_TOUCH:
2087                         case RBM_PUNCH:
2088                         case RBM_KICK:
2089                         case RBM_CLAW:
2090                         case RBM_BITE:
2091                         case RBM_STING:
2092                         case RBM_SLASH:
2093                         case RBM_BUTT:
2094                         case RBM_CRUSH:
2095                         case RBM_ENGULF:
2096                         case RBM_CHARGE:
2097                                 {
2098                                         /* Wake it up */
2099                                         (void)set_monster_csleep(t_idx, 0);
2100
2101                                         /* Visible monsters */
2102                                         if (see_m)
2103                                         {
2104                                                 /* Message */
2105 #ifdef JP
2106                                                 msg_format("%s¤Ï%^s¤Î¹¶·â¤ò¤«¤ï¤·¤¿¡£", t_name,m_name);
2107 #else
2108                                                 msg_format("%^s misses %s.", m_name, t_name);
2109 #endif
2110                                         }
2111
2112                                         break;
2113                                 }
2114                         }
2115                 }
2116
2117
2118                 /* Analyze "visible" monsters only */
2119                 if (is_original_ap_and_seen(m_ptr) && !do_silly_attack)
2120                 {
2121                         /* Count "obvious" attacks (and ones that cause damage) */
2122                         if (obvious || damage || (r_ptr->r_blows[ap_cnt] > 10))
2123                         {
2124                                 /* Count attacks of this type */
2125                                 if (r_ptr->r_blows[ap_cnt] < MAX_UCHAR)
2126                                 {
2127                                         r_ptr->r_blows[ap_cnt]++;
2128                                 }
2129                         }
2130                 }
2131         }
2132
2133         if (explode)
2134         {
2135                 sound(SOUND_EXPLODE);
2136
2137                 /* Cancel Invulnerability */
2138                 (void)set_monster_invulner(m_idx, 0, FALSE);
2139
2140 #ifdef JP
2141                 mon_take_hit_mon(m_idx, m_ptr->hp + 1, &fear, "¤ÏÇúÈ¯¤·¤ÆÊ´¡¹¤Ë¤Ê¤Ã¤¿¡£", m_idx);
2142 #else
2143                 mon_take_hit_mon(m_idx, m_ptr->hp + 1, &fear, " explodes into tiny shreds.", m_idx);
2144 #endif
2145
2146                 blinked = FALSE;
2147         }
2148
2149         /* Blink away */
2150         if (blinked && m_ptr->r_idx)
2151         {
2152                 if (teleport_barrier(m_idx))
2153                 {
2154                         if (see_m)
2155                         {
2156 #ifdef JP
2157                                 msg_print("Å¥ËÀ¤Ï¾Ð¤Ã¤ÆÆ¨¤²...¤è¤¦¤È¤·¤¿¤¬¥Ð¥ê¥¢¤ËËÉ¤¬¤ì¤¿¡£");
2158 #else
2159                                 msg_print("The thief flees laughing...? But magic barrier obstructs it.");
2160 #endif
2161                         }
2162                         else if (known)
2163                         {
2164                                 mon_fight = TRUE;
2165                         }
2166                 }
2167                 else
2168                 {
2169                         if (see_m)
2170                         {
2171 #ifdef JP
2172                                 msg_print("Å¥ËÀ¤Ï¾Ð¤Ã¤ÆÆ¨¤²¤¿¡ª");
2173 #else
2174                                 msg_print("The thief flees laughing!");
2175 #endif
2176                         }
2177                         else if (known)
2178                         {
2179                                 mon_fight = TRUE;
2180                         }
2181
2182                         teleport_away(m_idx, MAX_SIGHT * 2 + 5, 0L);
2183                 }
2184         }
2185
2186         return TRUE;
2187 }
2188
2189
2190 static bool check_hp_for_feat_destruction(feature_type *f_ptr, monster_type *m_ptr)
2191 {
2192         return !have_flag(f_ptr->flags, FF_GLASS) ||
2193                (r_info[m_ptr->r_idx].flags2 & RF2_STUPID) ||
2194                (m_ptr->hp >= MAX(m_ptr->maxhp / 3, 200));
2195 }
2196
2197
2198 /*
2199  * Process a monster
2200  *
2201  * The monster is known to be within 100 grids of the player
2202  *
2203  * In several cases, we directly update the monster lore
2204  *
2205  * Note that a monster is only allowed to "reproduce" if there
2206  * are a limited number of "reproducing" monsters on the current
2207  * level.  This should prevent the level from being "swamped" by
2208  * reproducing monsters.  It also allows a large mass of mice to
2209  * prevent a louse from multiplying, but this is a small price to
2210  * pay for a simple multiplication method.
2211  *
2212  * XXX Monster fear is slightly odd, in particular, monsters will
2213  * fixate on opening a door even if they cannot open it.  Actually,
2214  * the same thing happens to normal monsters when they hit a door
2215  *
2216  * XXX XXX XXX In addition, monsters which *cannot* open or bash
2217  * down a door will still stand there trying to open it...
2218  *
2219  * XXX Technically, need to check for monster in the way
2220  * combined with that monster being in a wall (or door?)
2221  *
2222  * A "direction" of "5" means "pick a random direction".
2223  */
2224 static void process_monster(int m_idx)
2225 {
2226         monster_type    *m_ptr = &m_list[m_idx];
2227         monster_race    *r_ptr = &r_info[m_ptr->r_idx];
2228         monster_race    *ap_r_ptr = &r_info[m_ptr->ap_r_idx];
2229
2230         int             i, d, oy, ox, ny, nx;
2231
2232         int             mm[8];
2233
2234         cave_type       *c_ptr;
2235         feature_type    *f_ptr;
2236
2237         monster_type    *y_ptr;
2238
2239         bool            do_turn;
2240         bool            do_move;
2241         bool            do_view;
2242         bool            must_alter_to_move;
2243
2244         bool            did_open_door;
2245         bool            did_bash_door;
2246         bool            did_take_item;
2247         bool            did_kill_item;
2248         bool            did_move_body;
2249         bool            did_pass_wall;
2250         bool            did_kill_wall;
2251         bool            gets_angry = FALSE;
2252         bool            can_cross;
2253         bool            aware = TRUE;
2254
2255         bool            fear;
2256
2257         bool            is_riding_mon = (m_idx == p_ptr->riding);
2258
2259         bool            see_m = is_seen(m_ptr);
2260
2261         if (is_riding_mon && !(r_ptr->flags7 & RF7_RIDING))
2262         {
2263                 if (rakuba(0, TRUE))
2264                 {
2265 #ifdef JP
2266                         msg_print("ÃÏÌÌ¤ËÍî¤È¤µ¤ì¤¿¡£");
2267 #else
2268                         char m_name[80];
2269                         monster_desc(m_name, &m_list[p_ptr->riding], 0);
2270                         msg_format("You have fallen from %s.", m_name);
2271 #endif
2272                 }
2273         }
2274
2275         if ((m_ptr->mflag2 & MFLAG2_CHAMELEON) && one_in_(13) && !MON_CSLEEP(m_ptr))
2276         {
2277                 choose_new_monster(m_idx, FALSE, 0);
2278                 r_ptr = &r_info[m_ptr->r_idx];
2279         }
2280
2281         /* Players hidden in shadow are almost imperceptable. -LM- */
2282         if (p_ptr->special_defense & NINJA_S_STEALTH)
2283         {
2284                 int tmp = p_ptr->lev*6+(p_ptr->skill_stl+10)*4;
2285                 if (p_ptr->monlite) tmp /= 3;
2286                 if (p_ptr->cursed & TRC_AGGRAVATE) tmp /= 2;
2287                 if (r_ptr->level > (p_ptr->lev*p_ptr->lev/20+10)) tmp /= 3;
2288                 /* Low-level monsters will find it difficult to locate the player. */
2289                 if (randint0(tmp) > (r_ptr->level+20)) aware = FALSE;
2290         }
2291
2292         /* Are there its parent? */
2293         if (m_ptr->parent_m_idx && !m_list[m_ptr->parent_m_idx].r_idx)
2294         {
2295                 /* Its parent have gone, it also goes away. */
2296
2297                 if (see_m)
2298                 {
2299                         char m_name[80];
2300
2301                         /* Acquire the monster name */
2302                         monster_desc(m_name, m_ptr, 0);
2303
2304 #ifdef JP
2305                         msg_format("%s¤Ï¾Ã¤¨µî¤Ã¤¿¡ª", m_name);
2306 #else
2307                         msg_format("%^s disappears!", m_name);
2308 #endif
2309                 }
2310
2311                 if (record_named_pet && is_pet(m_ptr) && m_ptr->nickname)
2312                 {
2313                         char m_name[80];
2314
2315                         monster_desc(m_name, m_ptr, MD_INDEF_VISIBLE);
2316                         do_cmd_write_nikki(NIKKI_NAMED_PET, RECORD_NAMED_PET_LOSE_PARENT, m_name);
2317                 }
2318
2319                 /* Delete the monster */
2320                 delete_monster_idx(m_idx);
2321
2322                 return;
2323         }
2324
2325         /* Quantum monsters are odd */
2326         if (r_ptr->flags2 & (RF2_QUANTUM))
2327         {
2328                 /* Sometimes skip move */
2329                 if (!randint0(2)) return;
2330
2331                 /* Sometimes die */
2332                 if (!randint0((m_idx % 100) + 10) && !(r_ptr->flags1 & RF1_QUESTOR))
2333                 {
2334                         bool sad = FALSE;
2335
2336                         if (is_pet(m_ptr) && !(m_ptr->ml))
2337                                 sad = TRUE;
2338
2339                         if (see_m)
2340                         {
2341                                 char m_name[80];
2342
2343                                 /* Acquire the monster name */
2344                                 monster_desc(m_name, m_ptr, 0);
2345
2346                                 /* Oops */
2347 #ifdef JP
2348                                 msg_format("%s¤Ï¾Ã¤¨µî¤Ã¤¿¡ª", m_name);
2349 #else
2350                                 msg_format("%^s disappears!", m_name);
2351 #endif
2352                         }
2353
2354                         /* Generate treasure, etc */
2355                         monster_death(m_idx, FALSE);
2356
2357                         /* Delete the monster */
2358                         delete_monster_idx(m_idx);
2359
2360                         if (sad)
2361                         {
2362 #ifdef JP
2363                                 msg_print("¾¯¤·¤Î´ÖÈá¤·¤¤µ¤Ê¬¤Ë¤Ê¤Ã¤¿¡£");
2364 #else
2365                                 msg_print("You feel sad for a moment.");
2366 #endif
2367                         }
2368
2369                         return;
2370                 }
2371         }
2372
2373         if (m_ptr->r_idx == MON_SHURYUUDAN)
2374 #ifdef JP
2375                 mon_take_hit_mon(m_idx, 1, &fear, "¤ÏÇúÈ¯¤·¤ÆÊ´¡¹¤Ë¤Ê¤Ã¤¿¡£", m_idx);
2376 #else
2377                 mon_take_hit_mon(m_idx, 1, &fear, " explodes into tiny shreds.", m_idx);
2378 #endif
2379
2380         if ((is_pet(m_ptr) || is_friendly(m_ptr)) && ((r_ptr->flags1 & RF1_UNIQUE) || (r_ptr->flags7 & RF7_NAZGUL)) && !p_ptr->inside_battle)
2381         {
2382                 static int riding_pinch = 0;
2383
2384                 if (m_ptr->hp < m_ptr->maxhp/3)
2385                 {
2386                         char m_name[80];
2387                         monster_desc(m_name, m_ptr, 0);
2388
2389                         if (is_riding_mon && riding_pinch < 2)
2390                         {
2391 #ifdef JP
2392                                 msg_format("%s¤Ï½ý¤ÎÄË¤µ¤ÎÍ¾¤ê¤¢¤Ê¤¿¤ÎÂ«Çû¤«¤éÆ¨¤ì¤è¤¦¤È¤·¤Æ¤¤¤ë¡£", m_name);
2393 #else
2394                                 msg_format("%^s seems to be in so much pain, and trying to escape from your restriction.", m_name);
2395 #endif
2396                                 riding_pinch++;
2397                                 disturb(1, 0);
2398                         }
2399                         else
2400                         {
2401                                 if (is_riding_mon)
2402                                 {
2403 #ifdef JP
2404                                         msg_format("%s¤Ï¤¢¤Ê¤¿¤ÎÂ«Çû¤«¤éÃ¦½Ð¤·¤¿¡£", m_name);
2405 #else
2406                                         msg_format("%^s succeeded to escape from your restriction!", m_name);
2407 #endif
2408                                         if (rakuba(-1, FALSE))
2409                                         {
2410 #ifdef JP
2411                                                 msg_print("ÃÏÌÌ¤ËÍî¤È¤µ¤ì¤¿¡£");
2412 #else
2413                                                 msg_print("You have fallen from riding pet.");
2414 #endif
2415                                         }
2416                                 }
2417
2418                                 if (see_m)
2419                                 {
2420                                         if ((r_ptr->flags2 & RF2_CAN_SPEAK) && (m_ptr->r_idx != MON_GRIP) && (m_ptr->r_idx != MON_WOLF) && (m_ptr->r_idx != MON_FANG) &&
2421                                             player_has_los_bold(m_ptr->fy, m_ptr->fx) && projectable(m_ptr->fy, m_ptr->fx, py, px))
2422                                         {
2423 #ifdef JP
2424                                                 msg_format("%^s¡Ö¥Ô¥ó¥Á¤À¡ªÂàµÑ¤µ¤»¤Æ¤â¤é¤¦¡ª¡×", m_name);
2425 #else
2426                                                 msg_format("%^s says 'It is the pinch! I will retreat'.", m_name);
2427 #endif
2428                                         }
2429 #ifdef JP
2430                                         msg_format("%^s¤¬¥Æ¥ì¥Ý¡¼¥È¡¦¥ì¥Ù¥ë¤Î´¬Êª¤òÆÉ¤ó¤À¡£", m_name);
2431                                         msg_format("%^s¤¬¾Ã¤¨µî¤Ã¤¿¡£", m_name);
2432 #else
2433                                         msg_format("%^s read a scroll of teleport level.", m_name);
2434                                         msg_format("%^s disappears.", m_name);
2435 #endif
2436                                 }
2437
2438                                 if (is_riding_mon && rakuba(-1, FALSE))
2439                                 {
2440 #ifdef JP
2441                                         msg_print("ÃÏÌÌ¤ËÍî¤È¤µ¤ì¤¿¡£");
2442 #else
2443                                         msg_print("You have fallen from riding pet.");
2444 #endif
2445                                 }
2446
2447                                 /* Check for quest completion */
2448                                 check_quest_completion(m_ptr);
2449
2450                                 delete_monster_idx(m_idx);
2451
2452                                 return;
2453                         }
2454                 }
2455                 else
2456                 {
2457                         /* Reset the counter */
2458                         if (is_riding_mon) riding_pinch = 0;
2459                 }
2460         }
2461
2462         /* Handle "sleep" */
2463         if (MON_CSLEEP(m_ptr))
2464         {
2465                 /* Handle non-aggravation - Still sleeping */
2466                 if (!(p_ptr->cursed & TRC_AGGRAVATE)) return;
2467
2468                 /* Handle aggravation */
2469
2470                 /* Reset sleep counter */
2471                 (void)set_monster_csleep(m_idx, 0);
2472
2473                 /* Notice the "waking up" */
2474                 if (m_ptr->ml)
2475                 {
2476                         char m_name[80];
2477
2478                         /* Acquire the monster name */
2479                         monster_desc(m_name, m_ptr, 0);
2480
2481                         /* Dump a message */
2482 #ifdef JP
2483                         msg_format("%^s¤¬ÌÜ¤ò³Ð¤Þ¤·¤¿¡£", m_name);
2484 #else
2485                         msg_format("%^s wakes up.", m_name);
2486 #endif
2487                 }
2488
2489                 /* Hack -- Count the wakings */
2490                 if (is_original_ap_and_seen(m_ptr) && (r_ptr->r_wake < MAX_UCHAR))
2491                 {
2492                         r_ptr->r_wake++;
2493                 }
2494         }
2495
2496         /* Handle "stun" */
2497         if (MON_STUNNED(m_ptr))
2498         {
2499                 /* Sometimes skip move */
2500                 if (one_in_(2)) return;
2501         }
2502
2503         if (is_riding_mon)
2504         {
2505                 p_ptr->update |= (PU_BONUS);
2506         }
2507
2508         /* No one wants to be your friend if you're aggravating */
2509         if (is_friendly(m_ptr) && (p_ptr->cursed & TRC_AGGRAVATE))
2510                 gets_angry = TRUE;
2511
2512         /* Paranoia... no pet uniques outside wizard mode -- TY */
2513         if (is_pet(m_ptr) &&
2514             ((((r_ptr->flags1 & RF1_UNIQUE) || (r_ptr->flags7 & RF7_NAZGUL)) &&
2515               monster_has_hostile_align(NULL, 10, -10, r_ptr))
2516              || (r_ptr->flagsr & RFR_RES_ALL)))
2517         {
2518                 gets_angry = TRUE;
2519         }
2520
2521         if (p_ptr->inside_battle) gets_angry = FALSE;
2522
2523         if (gets_angry)
2524         {
2525                 if (is_pet(m_ptr) || see_m)
2526                 {
2527                         char m_name[80];
2528                         monster_desc(m_name, m_ptr, is_pet(m_ptr) ? MD_ASSUME_VISIBLE : 0);
2529 #ifdef JP
2530                         msg_format("%^s¤ÏÆÍÁ³Å¨¤Ë¤Þ¤ï¤Ã¤¿¡ª", m_name);
2531 #else
2532                         msg_format("%^s suddenly becomes hostile!", m_name);
2533 #endif
2534                 }
2535
2536                 set_hostile(m_ptr);
2537         }
2538
2539         /* Get the origin */
2540         oy = m_ptr->fy;
2541         ox = m_ptr->fx;
2542
2543
2544         /* Attempt to "multiply" if able and allowed */
2545         if ((r_ptr->flags2 & RF2_MULTIPLY) && (num_repro < MAX_REPRO))
2546         {
2547                 int k, y, x;
2548
2549                 /* Count the adjacent monsters */
2550                 for (k = 0, y = oy - 1; y <= oy + 1; y++)
2551                 {
2552                         for (x = ox - 1; x <= ox + 1; x++)
2553                         {
2554                                 /* Ignore locations off of edge */
2555                                 if (!in_bounds2(y, x)) continue;
2556
2557                                 if (cave[y][x].m_idx) k++;
2558                         }
2559                 }
2560
2561                 /* Hex */
2562                 if (multiply_barrier(m_idx)) k = 8;
2563
2564                 /* Hack -- multiply slower in crowded areas */
2565                 if ((k < 4) && (!k || !randint0(k * MON_MULT_ADJ)))
2566                 {
2567                         /* Try to multiply */
2568                         if (multiply_monster(m_idx, FALSE, (is_pet(m_ptr) ? PM_FORCE_PET : 0)))
2569                         {
2570                                 /* Take note if visible */
2571                                 if (m_list[hack_m_idx_ii].ml && is_original_ap_and_seen(m_ptr))
2572                                 {
2573                                         r_ptr->r_flags2 |= (RF2_MULTIPLY);
2574                                 }
2575
2576                                 /* Multiplying takes energy */
2577                                 return;
2578                         }
2579                 }
2580         }
2581
2582
2583         if (r_ptr->flags6 & RF6_SPECIAL)
2584         {
2585                 /* Hack -- Ohmu scatters molds! */
2586                 if (m_ptr->r_idx == MON_OHMU)
2587                 {
2588                         if (!p_ptr->inside_arena && !p_ptr->inside_battle)
2589                         {
2590                                 if (r_ptr->freq_spell && (randint1(100) <= r_ptr->freq_spell))
2591                                 {
2592                                         int  k, count = 0;
2593                                         int  rlev = ((r_ptr->level >= 1) ? r_ptr->level : 1);
2594                                         u32b p_mode = is_pet(m_ptr) ? PM_FORCE_PET : 0L;
2595
2596                                         for (k = 0; k < 6; k++)
2597                                         {
2598                                                 if (summon_specific(m_idx, m_ptr->fy, m_ptr->fx, rlev, SUMMON_BIZARRE1, (PM_ALLOW_GROUP | p_mode)))
2599                                                 {
2600                                                         if (m_list[hack_m_idx_ii].ml) count++;
2601                                                 }
2602                                         }
2603
2604                                         if (count && is_original_ap_and_seen(m_ptr)) r_ptr->r_flags6 |= (RF6_SPECIAL);
2605                                 }
2606                         }
2607                 }
2608         }
2609
2610
2611         if (!p_ptr->inside_battle)
2612         {
2613                 /* Hack! "Cyber" monster makes noise... */
2614                 if (m_ptr->ap_r_idx == MON_CYBER &&
2615                     one_in_(CYBERNOISE) &&
2616                     !m_ptr->ml && (m_ptr->cdis <= MAX_SIGHT))
2617                 {
2618                         if (disturb_minor) disturb(FALSE, FALSE);
2619 #ifdef JP
2620                         msg_print("½Å¸ü¤ÊÂ²»¤¬Ê¹¤³¤¨¤¿¡£");
2621 #else
2622                         msg_print("You hear heavy steps.");
2623 #endif
2624                 }
2625
2626                 /* Some monsters can speak */
2627                 if ((ap_r_ptr->flags2 & RF2_CAN_SPEAK) && aware &&
2628                     one_in_(SPEAK_CHANCE) &&
2629                     player_has_los_bold(oy, ox) &&
2630                     projectable(oy, ox, py, px))
2631                 {
2632                         char m_name[80];
2633                         char monmessage[1024];
2634                         cptr filename;
2635
2636                         /* Acquire the monster name/poss */
2637                         if (m_ptr->ml)
2638                                 monster_desc(m_name, m_ptr, 0);
2639                         else
2640 #ifdef JP
2641                                 strcpy(m_name, "¤½¤ì");
2642 #else
2643                                 strcpy(m_name, "It");
2644 #endif
2645
2646                         /* Select the file for monster quotes */
2647                         if (MON_MONFEAR(m_ptr))
2648 #ifdef JP
2649                                 filename = "monfear_j.txt";
2650 #else
2651                                 filename = "monfear.txt";
2652 #endif
2653                         else if (is_pet(m_ptr))
2654 #ifdef JP
2655                                 filename = "monpet_j.txt";
2656 #else
2657                                 filename = "monpet.txt";
2658 #endif
2659                         else if (is_friendly(m_ptr))
2660 #ifdef JP
2661                                 filename = "monfrien_j.txt";
2662 #else
2663                                 filename = "monfrien.txt";
2664 #endif
2665                         else
2666 #ifdef JP
2667                                 filename = "monspeak_j.txt";
2668 #else
2669                                 filename = "monspeak.txt";
2670 #endif
2671                         /* Get the monster line */
2672                         if (get_rnd_line(filename, m_ptr->ap_r_idx, monmessage) == 0)
2673                         {
2674                                 /* Say something */
2675 #ifdef JP
2676 msg_format("%^s%s", m_name, monmessage);
2677 #else
2678                                 msg_format("%^s %s", m_name, monmessage);
2679 #endif
2680
2681                         }
2682                 }
2683         }
2684
2685         /* Try to cast spell occasionally */
2686         if (r_ptr->freq_spell && randint1(100) <= r_ptr->freq_spell)
2687         {
2688                 bool counterattack = FALSE;
2689
2690                 /* Give priority to counter attack? */
2691                 if (m_ptr->target_y)
2692                 {
2693                         int t_m_idx = cave[m_ptr->target_y][m_ptr->target_x].m_idx;
2694
2695                         /* The monster must be an enemy, and projectable */
2696                         if (t_m_idx &&
2697                             are_enemies(m_ptr, &m_list[t_m_idx]) &&
2698                             projectable(m_ptr->fy, m_ptr->fx, m_ptr->target_y, m_ptr->target_x))
2699                         {
2700                                 counterattack = TRUE;
2701                         }
2702                 }
2703
2704                 if (!counterattack)
2705                 {
2706                         /* Attempt to cast a spell */
2707                         if (aware && make_attack_spell(m_idx)) return;
2708
2709                         /*
2710                          * Attempt to cast a spell at an enemy other than the player
2711                          * (may slow the game a smidgeon, but I haven't noticed.)
2712                          */
2713                         if (monst_spell_monst(m_idx)) return;
2714                 }
2715                 else
2716                 {
2717                         /* Attempt to do counter attack at first */
2718                         if (monst_spell_monst(m_idx)) return;
2719
2720                         if (aware && make_attack_spell(m_idx)) return;
2721                 }
2722         }
2723
2724         /* Hack -- Assume no movement */
2725         mm[0] = mm[1] = mm[2] = mm[3] = 0;
2726         mm[4] = mm[5] = mm[6] = mm[7] = 0;
2727
2728
2729         /* Confused -- 100% random */
2730         if (MON_CONFUSED(m_ptr) || !aware)
2731         {
2732                 /* Try four "random" directions */
2733                 mm[0] = mm[1] = mm[2] = mm[3] = 5;
2734         }
2735
2736         /* 75% random movement */
2737         else if (((r_ptr->flags1 & (RF1_RAND_50 | RF1_RAND_25)) == (RF1_RAND_50 | RF1_RAND_25)) &&
2738                  (randint0(100) < 75))
2739         {
2740                 /* Memorize flags */
2741                 if (is_original_ap_and_seen(m_ptr)) r_ptr->r_flags1 |= (RF1_RAND_50 | RF1_RAND_25);
2742
2743                 /* Try four "random" directions */
2744                 mm[0] = mm[1] = mm[2] = mm[3] = 5;
2745         }
2746
2747         /* 50% random movement */
2748         else if ((r_ptr->flags1 & RF1_RAND_50) &&
2749                                 (randint0(100) < 50))
2750         {
2751                 /* Memorize flags */
2752                 if (is_original_ap_and_seen(m_ptr)) r_ptr->r_flags1 |= (RF1_RAND_50);
2753
2754                 /* Try four "random" directions */
2755                 mm[0] = mm[1] = mm[2] = mm[3] = 5;
2756         }
2757
2758         /* 25% random movement */
2759         else if ((r_ptr->flags1 & RF1_RAND_25) &&
2760                                 (randint0(100) < 25))
2761         {
2762                 /* Memorize flags */
2763                 if (is_original_ap_and_seen(m_ptr)) r_ptr->r_flags1 |= RF1_RAND_25;
2764
2765                 /* Try four "random" directions */
2766                 mm[0] = mm[1] = mm[2] = mm[3] = 5;
2767         }
2768
2769         /* Can't reach player - find something else to hit */
2770         else if ((r_ptr->flags1 & RF1_NEVER_MOVE) && (m_ptr->cdis > 1))
2771         {
2772                 /* Try four "random" directions */
2773                 mm[0] = mm[1] = mm[2] = mm[3] = 5;
2774
2775                 /* Look for an enemy */
2776 #if 0  /* Hack - Too slow.  Mimic pits are horrible with this on. */
2777                 get_enemy_dir(m_idx, mm);
2778 #endif /* 0 */
2779         }
2780
2781         /* Pets will follow the player */
2782         else if (is_pet(m_ptr))
2783         {
2784                 /* Are we trying to avoid the player? */
2785                 bool avoid = ((p_ptr->pet_follow_distance < 0) &&
2786                                                   (m_ptr->cdis <= (0 - p_ptr->pet_follow_distance)));
2787
2788                 /* Do we want to find the player? */
2789                 bool lonely = (!avoid && (m_ptr->cdis > p_ptr->pet_follow_distance));
2790
2791                 /* Should we find the player if we can't find a monster? */
2792                 bool distant = (m_ptr->cdis > PET_SEEK_DIST);
2793
2794                 /* by default, move randomly */
2795                 mm[0] = mm[1] = mm[2] = mm[3] = 5;
2796
2797                 /* Look for an enemy */
2798                 if (!get_enemy_dir(m_idx, mm))
2799                 {
2800                         /* Find the player if necessary */
2801                         if (avoid || lonely || distant)
2802                         {
2803                                 /* Remember the leash length */
2804                                 int dis = p_ptr->pet_follow_distance;
2805
2806                                 /* Hack -- adjust follow distance temporarily */
2807                                 if (p_ptr->pet_follow_distance > PET_SEEK_DIST)
2808                                 {
2809                                         p_ptr->pet_follow_distance = PET_SEEK_DIST;
2810                                 }
2811
2812                                 /* Find the player */
2813                                 (void)get_moves(m_idx, mm);
2814
2815                                 /* Restore the leash */
2816                                 p_ptr->pet_follow_distance = dis;
2817                         }
2818                 }
2819         }
2820
2821         /* Friendly monster movement */
2822         else if (!is_hostile(m_ptr))
2823         {
2824                 /* by default, move randomly */
2825                 mm[0] = mm[1] = mm[2] = mm[3] = 5;
2826
2827                 /* Look for an enemy */
2828                 get_enemy_dir(m_idx, mm);
2829         }
2830         /* Normal movement */
2831         else
2832         {
2833                 /* Logical moves, may do nothing */
2834                 if (!get_moves(m_idx, mm)) return;
2835         }
2836
2837         /* Assume nothing */
2838         do_turn = FALSE;
2839         do_move = FALSE;
2840         do_view = FALSE;
2841         must_alter_to_move = FALSE;
2842
2843         /* Assume nothing */
2844         did_open_door = FALSE;
2845         did_bash_door = FALSE;
2846         did_take_item = FALSE;
2847         did_kill_item = FALSE;
2848         did_move_body = FALSE;
2849         did_pass_wall = FALSE;
2850         did_kill_wall = FALSE;
2851
2852
2853         /* Take a zero-terminated array of "directions" */
2854         for (i = 0; mm[i]; i++)
2855         {
2856                 /* Get the direction */
2857                 d = mm[i];
2858
2859                 /* Hack -- allow "randomized" motion */
2860                 if (d == 5) d = ddd[randint0(8)];
2861
2862                 /* Get the destination */
2863                 ny = oy + ddy[d];
2864                 nx = ox + ddx[d];
2865
2866                 /* Ignore locations off of edge */
2867                 if (!in_bounds2(ny, nx)) continue;
2868
2869                 /* Access that cave grid */
2870                 c_ptr = &cave[ny][nx];
2871                 f_ptr = &f_info[c_ptr->feat];
2872                 can_cross = monster_can_cross_terrain(c_ptr->feat, r_ptr, is_riding_mon ? CEM_RIDING : 0);
2873
2874                 /* Access that cave grid's contents */
2875                 y_ptr = &m_list[c_ptr->m_idx];
2876
2877                 /* Hack -- player 'in' wall */
2878                 if (player_bold(ny, nx))
2879                 {
2880                         do_move = TRUE;
2881                 }
2882
2883                 /* Possibly a monster to attack */
2884                 else if (c_ptr->m_idx)
2885                 {
2886                         do_move = TRUE;
2887                 }
2888
2889                 /* Monster destroys walls (and doors) */
2890                 else if ((r_ptr->flags2 & RF2_KILL_WALL) &&
2891                          (can_cross ? !have_flag(f_ptr->flags, FF_LOS) : !is_riding_mon) &&
2892                          have_flag(f_ptr->flags, FF_HURT_DISI) && !have_flag(f_ptr->flags, FF_PERMANENT) &&
2893                          check_hp_for_feat_destruction(f_ptr, m_ptr))
2894                 {
2895                         /* Eat through walls/doors/rubble */
2896                         do_move = TRUE;
2897                         if (!can_cross) must_alter_to_move = TRUE;
2898
2899                         /* Monster destroyed a wall (later) */
2900                         did_kill_wall = TRUE;
2901                 }
2902
2903                 /* Floor is open? */
2904                 else if (can_cross)
2905                 {
2906                         /* Go ahead and move */
2907                         do_move = TRUE;
2908
2909                         /* Monster moves through walls (and doors) */
2910                         if ((r_ptr->flags2 & RF2_PASS_WALL) && (!is_riding_mon || p_ptr->pass_wall) &&
2911                             have_flag(f_ptr->flags, FF_CAN_PASS))
2912                         {
2913                                 /* Monster went through a wall */
2914                                 did_pass_wall = TRUE;
2915                         }
2916                 }
2917
2918                 /* Handle doors and secret doors */
2919                 else if (is_closed_door(c_ptr->feat))
2920                 {
2921                         bool may_bash = TRUE;
2922
2923                         /* Assume no move allowed */
2924                         do_move = FALSE;
2925
2926                         /* Creature can open doors. */
2927                         if ((r_ptr->flags2 & RF2_OPEN_DOOR) && have_flag(f_ptr->flags, FF_OPEN) &&
2928                                  (!is_pet(m_ptr) || (p_ptr->pet_extra_flags & PF_OPEN_DOORS)))
2929                         {
2930                                 /* Closed doors */
2931                                 if (!f_ptr->power)
2932                                 {
2933                                         /* The door is open */
2934                                         did_open_door = TRUE;
2935
2936                                         /* Do not bash the door */
2937                                         may_bash = FALSE;
2938
2939                                         /* Take a turn */
2940                                         do_turn = TRUE;
2941                                 }
2942
2943                                 /* Locked doors (not jammed) */
2944                                 else
2945                                 {
2946                                         /* Try to unlock it XXX XXX XXX */
2947                                         if (randint0(m_ptr->hp / 10) > f_ptr->power)
2948                                         {
2949                                                 /* Unlock the door */
2950                                                 cave_alter_feat(ny, nx, FF_DISARM);
2951
2952                                                 /* Do not bash the door */
2953                                                 may_bash = FALSE;
2954
2955                                                 /* Take a turn */
2956                                                 do_turn = TRUE;
2957                                         }
2958                                 }
2959                         }
2960
2961                         /* Stuck doors -- attempt to bash them down if allowed */
2962                         if (may_bash && (r_ptr->flags2 & RF2_BASH_DOOR) && have_flag(f_ptr->flags, FF_BASH) &&
2963                                 (!is_pet(m_ptr) || (p_ptr->pet_extra_flags & PF_OPEN_DOORS)))
2964                         {
2965                                 /* Attempt to Bash XXX XXX XXX */
2966                                 if (check_hp_for_feat_destruction(f_ptr, m_ptr) && (randint0(m_ptr->hp / 10) > f_ptr->power))
2967                                 {
2968                                         /* Message */
2969                                         if (have_flag(f_ptr->flags, FF_GLASS))
2970 #ifdef JP
2971                                                 msg_print("¥¬¥é¥¹¤¬ºÕ¤±¤ë²»¤¬¤·¤¿¡ª");
2972 #else
2973                                                 msg_print("You hear a glass was crashed!");
2974 #endif
2975                                         else
2976 #ifdef JP
2977                                                 msg_print("¥É¥¢¤òÃ¡¤³«¤±¤ë²»¤¬¤·¤¿¡ª");
2978 #else
2979                                                 msg_print("You hear a door burst open!");
2980 #endif
2981
2982                                         /* Disturb (sometimes) */
2983                                         if (disturb_minor) disturb(0, 0);
2984
2985                                         /* The door was bashed open */
2986                                         did_bash_door = TRUE;
2987
2988                                         /* Hack -- fall into doorway */
2989                                         do_move = TRUE;
2990                                         must_alter_to_move = TRUE;
2991                                 }
2992                         }
2993
2994
2995                         /* Deal with doors in the way */
2996                         if (did_open_door || did_bash_door)
2997                         {
2998                                 /* Break down the door */
2999                                 if (did_bash_door && ((randint0(100) < 50) || (feat_state(c_ptr->feat, FF_OPEN) == c_ptr->feat) || have_flag(f_ptr->flags, FF_GLASS)))
3000                                 {
3001                                         cave_alter_feat(ny, nx, FF_BASH);
3002
3003                                         if (!m_ptr->r_idx) /* Killed by shards of glass, etc. */
3004                                         {
3005                                                 /* Update some things */
3006                                                 p_ptr->update |= (PU_FLOW);
3007                                                 p_ptr->window |= (PW_OVERHEAD | PW_DUNGEON);
3008                                                 if (is_original_ap_and_seen(m_ptr)) r_ptr->r_flags2 |= (RF2_BASH_DOOR);
3009
3010                                                 return;
3011                                         }
3012                                 }
3013
3014                                 /* Open the door */
3015                                 else
3016                                 {
3017                                         cave_alter_feat(ny, nx, FF_OPEN);
3018                                 }
3019
3020                                 f_ptr = &f_info[c_ptr->feat];
3021
3022                                 /* Handle viewable doors */
3023                                 do_view = TRUE;
3024                         }
3025                 }
3026
3027                 /* Hack -- check for Glyph of Warding */
3028                 if (do_move && is_glyph_grid(c_ptr) &&
3029                     !((r_ptr->flags1 & RF1_NEVER_BLOW) && player_bold(ny, nx)))
3030                 {
3031                         /* Assume no move allowed */
3032                         do_move = FALSE;
3033
3034                         /* Break the ward */
3035                         if (!is_pet(m_ptr) && (randint1(BREAK_GLYPH) < r_ptr->level))
3036                         {
3037                                 /* Describe observable breakage */
3038                                 if (c_ptr->info & CAVE_MARK)
3039                                 {
3040 #ifdef JP
3041                                         msg_print("¼é¤ê¤Î¥ë¡¼¥ó¤¬²õ¤ì¤¿¡ª");
3042 #else
3043                                         msg_print("The rune of protection is broken!");
3044 #endif
3045                                 }
3046
3047                                 /* Forget the rune */
3048                                 c_ptr->info &= ~(CAVE_MARK);
3049
3050                                 /* Break the rune */
3051                                 c_ptr->info &= ~(CAVE_OBJECT);
3052                                 c_ptr->mimic = 0;
3053
3054                                 /* Allow movement */
3055                                 do_move = TRUE;
3056
3057                                 /* Notice */
3058                                 note_spot(ny, nx);
3059                         }
3060                 }
3061                 else if (do_move && is_explosive_rune_grid(c_ptr) &&
3062                          !((r_ptr->flags1 & RF1_NEVER_BLOW) && player_bold(ny, nx)))
3063                 {
3064                         /* Assume no move allowed */
3065                         do_move = FALSE;
3066
3067                         /* Break the ward */
3068                         if (!is_pet(m_ptr))
3069                         {
3070                                 /* Break the ward */
3071                                 if (randint1(BREAK_MINOR_GLYPH) > r_ptr->level)
3072                                 {
3073                                         /* Describe observable breakage */
3074                                         if (c_ptr->info & CAVE_MARK)
3075                                         {
3076 #ifdef JP
3077                                                 msg_print("¥ë¡¼¥ó¤¬ÇúÈ¯¤·¤¿¡ª");
3078 #else
3079                                                 msg_print("The rune explodes!");
3080 #endif
3081
3082                                                 project(0, 2, ny, nx, 2 * (p_ptr->lev + damroll(7, 7)), GF_MANA, (PROJECT_GRID | PROJECT_ITEM | PROJECT_KILL | PROJECT_JUMP | PROJECT_NO_HANGEKI), -1);
3083                                         }
3084                                 }
3085                                 else
3086                                 {
3087 #ifdef JP
3088                                         msg_print("ÇúÈ¯¤Î¥ë¡¼¥ó¤Ï²ò½ü¤µ¤ì¤¿¡£");
3089 #else
3090                                         msg_print("An explosive rune was disarmed.");
3091 #endif
3092                                 }
3093
3094                                 /* Forget the rune */
3095                                 c_ptr->info &= ~(CAVE_MARK);
3096
3097                                 /* Break the rune */
3098                                 c_ptr->info &= ~(CAVE_OBJECT);
3099                                 c_ptr->mimic = 0;
3100
3101                                 note_spot(ny, nx);
3102                                 lite_spot(ny, nx);
3103
3104                                 if (!m_ptr->r_idx) return;
3105                                 /* Allow movement */
3106                                 do_move = TRUE;
3107                         }
3108                 }
3109
3110                 /* The player is in the way */
3111                 if (do_move && player_bold(ny, nx))
3112                 {
3113                         /* Some monsters never attack */
3114                         if (r_ptr->flags1 & RF1_NEVER_BLOW)
3115                         {
3116                                 /* Hack -- memorize lack of attacks */
3117                                 if (is_original_ap_and_seen(m_ptr)) r_ptr->r_flags1 |= (RF1_NEVER_BLOW);
3118
3119                                 /* Do not move */
3120                                 do_move = FALSE;
3121                         }
3122
3123                         /* In anti-melee dungeon, stupid or confused monster takes useless turn */
3124                         if (do_move && (d_info[dungeon_type].flags1 & DF1_NO_MELEE))
3125                         {
3126                                 if (!MON_CONFUSED(m_ptr))
3127                                 {
3128                                         if (!(r_ptr->flags2 & RF2_STUPID)) do_move = FALSE;
3129                                         else
3130                                         {
3131                                                 if (is_original_ap_and_seen(m_ptr)) r_ptr->r_flags2 |= (RF2_STUPID);
3132                                         }
3133                                 }
3134                         }
3135
3136                         /* The player is in the way.  Attack him. */
3137                         if (do_move)
3138                         {
3139                                 if (!p_ptr->riding || one_in_(2))
3140                                 {
3141                                         /* Do the attack */
3142                                         (void)make_attack_normal(m_idx);
3143
3144                                         /* Do not move */
3145                                         do_move = FALSE;
3146
3147                                         /* Took a turn */
3148                                         do_turn = TRUE;
3149                                 }
3150                         }
3151                 }
3152
3153                 /* A monster is in the way */
3154                 if (do_move && c_ptr->m_idx)
3155                 {
3156                         monster_race *z_ptr = &r_info[y_ptr->r_idx];
3157
3158                         /* Assume no movement */
3159                         do_move = FALSE;
3160
3161                         /* Attack 'enemies' */
3162                         if (((r_ptr->flags2 & RF2_KILL_BODY) && !(r_ptr->flags1 & RF1_NEVER_BLOW) &&
3163                                  (r_ptr->mexp * r_ptr->level > z_ptr->mexp * z_ptr->level) &&
3164                                  can_cross && (c_ptr->m_idx != p_ptr->riding)) ||
3165                                 are_enemies(m_ptr, y_ptr) || MON_CONFUSED(m_ptr))
3166                         {
3167                                 if (!(r_ptr->flags1 & RF1_NEVER_BLOW))
3168                                 {
3169                                         if (r_ptr->flags2 & RF2_KILL_BODY)
3170                                         {
3171                                                 if (is_original_ap_and_seen(m_ptr)) r_ptr->r_flags2 |= (RF2_KILL_BODY);
3172                                         }
3173
3174                                         /* attack */
3175                                         if (y_ptr->r_idx && (y_ptr->hp >= 0))
3176                                         {
3177                                                 if (monst_attack_monst(m_idx, c_ptr->m_idx)) return;
3178
3179                                                 /* In anti-melee dungeon, stupid or confused monster takes useless turn */
3180                                                 else if (d_info[dungeon_type].flags1 & DF1_NO_MELEE)
3181                                                 {
3182                                                         if (MON_CONFUSED(m_ptr)) return;
3183                                                         else if (r_ptr->flags2 & RF2_STUPID)
3184                                                         {
3185                                                                 if (is_original_ap_and_seen(m_ptr)) r_ptr->r_flags2 |= (RF2_STUPID);
3186                                                                 return;
3187                                                         }
3188                                                 }
3189                                         }
3190                                 }
3191                         }
3192
3193                         /* Push past weaker monsters (unless leaving a wall) */
3194                         else if ((r_ptr->flags2 & RF2_MOVE_BODY) && !(r_ptr->flags1 & RF1_NEVER_MOVE) &&
3195                                 (r_ptr->mexp > z_ptr->mexp) &&
3196                                 can_cross && (c_ptr->m_idx != p_ptr->riding) &&
3197                                 monster_can_cross_terrain(cave[m_ptr->fy][m_ptr->fx].feat, z_ptr, 0))
3198                         {
3199                                 /* Allow movement */
3200                                 do_move = TRUE;
3201
3202                                 /* Monster pushed past another monster */
3203                                 did_move_body = TRUE;
3204
3205                                 /* Wake up the moved monster */
3206                                 (void)set_monster_csleep(c_ptr->m_idx, 0);
3207
3208                                 /* XXX XXX XXX Message */
3209                         }
3210                 }
3211
3212                 if (is_riding_mon)
3213                 {
3214                         if (!p_ptr->riding_ryoute && !MON_MONFEAR(&m_list[p_ptr->riding])) do_move = FALSE;
3215                 }
3216
3217                 if (did_kill_wall && do_move)
3218                 {
3219                         if (one_in_(GRINDNOISE))
3220                         {
3221                                 if (have_flag(f_ptr->flags, FF_GLASS))
3222 #ifdef JP
3223                                         msg_print("²¿¤«¤ÎºÕ¤±¤ë²»¤¬Ê¹¤³¤¨¤ë¡£");
3224 #else
3225                                         msg_print("There is a crashing sound.");
3226 #endif
3227                                 else
3228 #ifdef JP
3229                                         msg_print("¥®¥·¥®¥·¤¤¤¦²»¤¬Ê¹¤³¤¨¤ë¡£");
3230 #else
3231                                         msg_print("There is a grinding sound.");
3232 #endif
3233                         }
3234
3235                         cave_alter_feat(ny, nx, FF_HURT_DISI);
3236
3237                         if (!m_ptr->r_idx) /* Killed by shards of glass, etc. */
3238                         {
3239                                 /* Update some things */
3240                                 p_ptr->update |= (PU_FLOW);
3241                                 p_ptr->window |= (PW_OVERHEAD | PW_DUNGEON);
3242                                 if (is_original_ap_and_seen(m_ptr)) r_ptr->r_flags2 |= (RF2_KILL_WALL);
3243
3244                                 return;
3245                         }
3246
3247                         f_ptr = &f_info[c_ptr->feat];
3248
3249                         /* Note changes to viewable region */
3250                         do_view = TRUE;
3251
3252                         /* Take a turn */
3253                         do_turn = TRUE;
3254                 }
3255
3256                 if (must_alter_to_move && (r_ptr->flags7 & RF7_AQUATIC))
3257                 {
3258                         if (!monster_can_cross_terrain(c_ptr->feat, r_ptr, is_riding_mon ? CEM_RIDING : 0))
3259                         {
3260                                 /* Assume no move allowed */
3261                                 do_move = FALSE;
3262                         }
3263                 }
3264
3265                 /*
3266                  * Check if monster can cross terrain
3267                  * This is checked after the normal attacks
3268                  * to allow monsters to attack an enemy,
3269                  * even if it can't enter the terrain.
3270                  */
3271                 if (do_move && !can_cross && !did_kill_wall && !did_bash_door)
3272                 {
3273                         /* Assume no move allowed */
3274                         do_move = FALSE;
3275                 }
3276
3277                 /* Some monsters never move */
3278                 if (do_move && (r_ptr->flags1 & RF1_NEVER_MOVE))
3279                 {
3280                         /* Hack -- memorize lack of moves */
3281                         if (is_original_ap_and_seen(m_ptr)) r_ptr->r_flags1 |= (RF1_NEVER_MOVE);
3282
3283                         /* Do not move */
3284                         do_move = FALSE;
3285                 }
3286
3287                 /* Creature has been allowed move */
3288                 if (do_move)
3289                 {
3290                         /* Take a turn */
3291                         do_turn = TRUE;
3292
3293                         if (have_flag(f_ptr->flags, FF_TREE))
3294                         {
3295                                 if (!(r_ptr->flags7 & RF7_CAN_FLY) && !(r_ptr->flags8 & RF8_WILD_WOOD))
3296                                 {
3297                                         m_ptr->energy_need += ENERGY_NEED();
3298                                 }
3299                         }
3300
3301                         if (!is_riding_mon)
3302                         {
3303                                 /* Hack -- Update the old location */
3304                                 cave[oy][ox].m_idx = c_ptr->m_idx;
3305
3306                                 /* Mega-Hack -- move the old monster, if any */
3307                                 if (c_ptr->m_idx)
3308                                 {
3309                                         /* Move the old monster */
3310                                         y_ptr->fy = oy;
3311                                         y_ptr->fx = ox;
3312
3313                                         /* Update the old monster */
3314                                         update_mon(c_ptr->m_idx, TRUE);
3315                                 }
3316
3317                                 /* Hack -- Update the new location */
3318                                 c_ptr->m_idx = m_idx;
3319
3320                                 /* Move the monster */
3321                                 m_ptr->fy = ny;
3322                                 m_ptr->fx = nx;
3323
3324                                 /* Update the monster */
3325                                 update_mon(m_idx, TRUE);
3326
3327                                 /* Redraw the old grid */
3328                                 lite_spot(oy, ox);
3329
3330                                 /* Redraw the new grid */
3331                                 lite_spot(ny, nx);
3332                         }
3333                         else
3334                         {
3335                                 /* Sound */
3336                                 /* sound(SOUND_WALK); */
3337
3338                                 /* Move the player */
3339                                 if (!move_player_effect(ny, nx, MPE_DONT_PICKUP)) break;
3340                         }
3341
3342                         /* Possible disturb */
3343                         if (m_ptr->ml &&
3344                             (disturb_move ||
3345                              (disturb_near && (m_ptr->mflag & MFLAG_VIEW) && projectable(py, px, m_ptr->fy, m_ptr->fx)) ||
3346                              (disturb_high && ap_r_ptr->r_tkills && ap_r_ptr->level >= p_ptr->lev)))
3347                         {
3348                                 /* Disturb */
3349                                 if (is_hostile(m_ptr))
3350                                         disturb(0, 0);
3351                         }
3352
3353                         /* Take or Kill objects on the floor */
3354                         if (c_ptr->o_idx && (r_ptr->flags2 & (RF2_TAKE_ITEM | RF2_KILL_ITEM)) &&
3355                             (!is_pet(m_ptr) || ((p_ptr->pet_extra_flags & PF_PICKUP_ITEMS) && (r_ptr->flags2 & RF2_TAKE_ITEM))))
3356                         {
3357                                 s16b this_o_idx, next_o_idx;
3358                                 bool do_take = (r_ptr->flags2 & RF2_TAKE_ITEM) ? TRUE : FALSE;
3359
3360                                 /* Scan all objects in the grid */
3361                                 for (this_o_idx = c_ptr->o_idx; this_o_idx; this_o_idx = next_o_idx)
3362                                 {
3363                                         u32b flgs[TR_FLAG_SIZE], flg2 = 0L, flg3 = 0L, flgr = 0L;
3364                                         char m_name[80], o_name[MAX_NLEN];
3365
3366                                         /* Acquire object */
3367                                         object_type *o_ptr = &o_list[this_o_idx];
3368
3369                                         /* Acquire next object */
3370                                         next_o_idx = o_ptr->next_o_idx;
3371
3372                                         if (do_take)
3373                                         {
3374                                                 /* Skip gold */
3375                                                 if (o_ptr->tval == TV_GOLD) continue;
3376
3377                                                 /*
3378                                                  * Skip "real" corpses and statues, to avoid extreme
3379                                                  * silliness like a novice rogue pockets full of statues
3380                                                  * and corpses.
3381                                                  */
3382                                                 if ((o_ptr->tval == TV_CORPSE) ||
3383                                                     (o_ptr->tval == TV_STATUE)) continue;
3384                                         }
3385
3386                                         /* Extract some flags */
3387                                         object_flags(o_ptr, flgs);
3388
3389                                         /* Acquire the object name */
3390                                         object_desc(o_name, o_ptr, 0);
3391
3392                                         /* Acquire the monster name */
3393                                         monster_desc(m_name, m_ptr, MD_INDEF_HIDDEN);
3394
3395                                         /* React to objects that hurt the monster */
3396                                         if (have_flag(flgs, TR_SLAY_DRAGON)) flg3 |= (RF3_DRAGON);
3397                                         if (have_flag(flgs, TR_KILL_DRAGON)) flg3 |= (RF3_DRAGON);
3398                                         if (have_flag(flgs, TR_SLAY_TROLL))  flg3 |= (RF3_TROLL);
3399                                         if (have_flag(flgs, TR_KILL_TROLL))  flg3 |= (RF3_TROLL);
3400                                         if (have_flag(flgs, TR_SLAY_GIANT))  flg3 |= (RF3_GIANT);
3401                                         if (have_flag(flgs, TR_KILL_GIANT))  flg3 |= (RF3_GIANT);
3402                                         if (have_flag(flgs, TR_SLAY_ORC))    flg3 |= (RF3_ORC);
3403                                         if (have_flag(flgs, TR_KILL_ORC))    flg3 |= (RF3_ORC);
3404                                         if (have_flag(flgs, TR_SLAY_DEMON))  flg3 |= (RF3_DEMON);
3405                                         if (have_flag(flgs, TR_KILL_DEMON))  flg3 |= (RF3_DEMON);
3406                                         if (have_flag(flgs, TR_SLAY_UNDEAD)) flg3 |= (RF3_UNDEAD);
3407                                         if (have_flag(flgs, TR_KILL_UNDEAD)) flg3 |= (RF3_UNDEAD);
3408                                         if (have_flag(flgs, TR_SLAY_ANIMAL)) flg3 |= (RF3_ANIMAL);
3409                                         if (have_flag(flgs, TR_KILL_ANIMAL)) flg3 |= (RF3_ANIMAL);
3410                                         if (have_flag(flgs, TR_SLAY_EVIL))   flg3 |= (RF3_EVIL);
3411                                         if (have_flag(flgs, TR_KILL_EVIL))   flg3 |= (RF3_EVIL);
3412                                         if (have_flag(flgs, TR_SLAY_HUMAN))  flg2 |= (RF2_HUMAN);
3413                                         if (have_flag(flgs, TR_KILL_HUMAN))  flg2 |= (RF2_HUMAN);
3414                                         if (have_flag(flgs, TR_BRAND_ACID))  flgr |= (RFR_IM_ACID);
3415                                         if (have_flag(flgs, TR_BRAND_ELEC))  flgr |= (RFR_IM_ELEC);
3416                                         if (have_flag(flgs, TR_BRAND_FIRE))  flgr |= (RFR_IM_FIRE);
3417                                         if (have_flag(flgs, TR_BRAND_COLD))  flgr |= (RFR_IM_COLD);
3418                                         if (have_flag(flgs, TR_BRAND_POIS))  flgr |= (RFR_IM_POIS);
3419
3420                                         /* The object cannot be picked up by the monster */
3421                                         if (object_is_artifact(o_ptr) || (r_ptr->flags3 & flg3) || (r_ptr->flags2 & flg2) ||
3422                                             ((~(r_ptr->flagsr) & flgr) && !(r_ptr->flagsr & RFR_RES_ALL)))
3423                                         {
3424                                                 /* Only give a message for "take_item" */
3425                                                 if (do_take && (r_ptr->flags2 & RF2_STUPID))
3426                                                 {
3427                                                         /* Take note */
3428                                                         did_take_item = TRUE;
3429
3430                                                         /* Describe observable situations */
3431                                                         if (m_ptr->ml && player_can_see_bold(ny, nx))
3432                                                         {
3433                                                                 /* Dump a message */
3434 #ifdef JP
3435                                                                 msg_format("%^s¤Ï%s¤ò½¦¤ª¤¦¤È¤·¤¿¤¬¡¢¤À¤á¤À¤Ã¤¿¡£", m_name, o_name);
3436 #else
3437                                                                 msg_format("%^s tries to pick up %s, but fails.", m_name, o_name);
3438 #endif
3439                                                         }
3440                                                 }
3441                                         }
3442
3443                                         /* Pick up the item */
3444                                         else if (do_take)
3445                                         {
3446                                                 /* Take note */
3447                                                 did_take_item = TRUE;
3448
3449                                                 /* Describe observable situations */
3450                                                 if (player_can_see_bold(ny, nx))
3451                                                 {
3452                                                         /* Dump a message */
3453 #ifdef JP
3454                                                         msg_format("%^s¤¬%s¤ò½¦¤Ã¤¿¡£", m_name, o_name);
3455 #else
3456                                                         msg_format("%^s picks up %s.", m_name, o_name);
3457 #endif
3458                                                 }
3459
3460                                                 /* Excise the object */
3461                                                 excise_object_idx(this_o_idx);
3462
3463                                                 /* Forget mark */
3464                                                 o_ptr->marked &= OM_TOUCHED;
3465
3466                                                 /* Forget location */
3467                                                 o_ptr->iy = o_ptr->ix = 0;
3468
3469                                                 /* Memorize monster */
3470                                                 o_ptr->held_m_idx = m_idx;
3471
3472                                                 /* Build a stack */
3473                                                 o_ptr->next_o_idx = m_ptr->hold_o_idx;
3474
3475                                                 /* Carry object */
3476                                                 m_ptr->hold_o_idx = this_o_idx;
3477                                         }
3478
3479                                         /* Destroy the item if not a pet */
3480                                         else if (!is_pet(m_ptr))
3481                                         {
3482                                                 /* Take note */
3483                                                 did_kill_item = TRUE;
3484
3485                                                 /* Describe observable situations */
3486                                                 if (player_has_los_bold(ny, nx))
3487                                                 {
3488                                                         /* Dump a message */
3489 #ifdef JP
3490                                                         msg_format("%^s¤¬%s¤òÇË²õ¤·¤¿¡£", m_name, o_name);
3491 #else
3492                                                         msg_format("%^s destroys %s.", m_name, o_name);
3493 #endif
3494                                                 }
3495
3496                                                 /* Delete the object */
3497                                                 delete_object_idx(this_o_idx);
3498                                         }
3499                                 }
3500                         }
3501                 }
3502
3503                 /* Stop when done */
3504                 if (do_turn) break;
3505         }
3506
3507         /*
3508          *  Forward movements failed, but now received LOS attack!
3509          *  Try to flow by smell.
3510          */
3511         if (p_ptr->no_flowed && i > 2 &&  m_ptr->target_y)
3512                 m_ptr->mflag2 &= ~MFLAG2_NOFLOW;
3513
3514         /* If we haven't done anything, try casting a spell again */
3515         if (!do_turn && !do_move && !MON_MONFEAR(m_ptr) && !is_riding_mon && aware)
3516         {
3517                 /* Try to cast spell again */
3518                 if (r_ptr->freq_spell && randint1(100) <= r_ptr->freq_spell)
3519                 {
3520                         if (make_attack_spell(m_idx)) return;
3521                 }
3522         }
3523
3524
3525         /* Notice changes in view */
3526         if (do_view)
3527         {
3528                 /* Update some things */
3529                 p_ptr->update |= (PU_FLOW);
3530
3531                 /* Window stuff */
3532                 p_ptr->window |= (PW_OVERHEAD | PW_DUNGEON);
3533         }
3534
3535         /* Notice changes in view */
3536         if (do_move && ((r_ptr->flags7 & (RF7_SELF_LD_MASK | RF7_HAS_DARK_1 | RF7_HAS_DARK_2))
3537                 || ((r_ptr->flags7 & (RF7_HAS_LITE_1 | RF7_HAS_LITE_2)) && !p_ptr->inside_battle)))
3538         {
3539                 /* Update some things */
3540                 p_ptr->update |= (PU_MON_LITE);
3541         }
3542
3543         /* Learn things from observable monster */
3544         if (is_original_ap_and_seen(m_ptr))
3545         {
3546                 /* Monster opened a door */
3547                 if (did_open_door) r_ptr->r_flags2 |= (RF2_OPEN_DOOR);
3548
3549                 /* Monster bashed a door */
3550                 if (did_bash_door) r_ptr->r_flags2 |= (RF2_BASH_DOOR);
3551
3552                 /* Monster tried to pick something up */
3553                 if (did_take_item) r_ptr->r_flags2 |= (RF2_TAKE_ITEM);
3554
3555                 /* Monster tried to crush something */
3556                 if (did_kill_item) r_ptr->r_flags2 |= (RF2_KILL_ITEM);
3557
3558                 /* Monster pushed past another monster */
3559                 if (did_move_body) r_ptr->r_flags2 |= (RF2_MOVE_BODY);
3560
3561                 /* Monster passed through a wall */
3562                 if (did_pass_wall) r_ptr->r_flags2 |= (RF2_PASS_WALL);
3563
3564                 /* Monster destroyed a wall */
3565                 if (did_kill_wall) r_ptr->r_flags2 |= (RF2_KILL_WALL);
3566         }
3567
3568
3569         /* Hack -- get "bold" if out of options */
3570         if (!do_turn && !do_move && MON_MONFEAR(m_ptr) && aware)
3571         {
3572                 /* No longer afraid */
3573                 (void)set_monster_monfear(m_idx, 0);
3574
3575                 /* Message if seen */
3576                 if (see_m)
3577                 {
3578                         char m_name[80];
3579
3580                         /* Acquire the monster name */
3581                         monster_desc(m_name, m_ptr, 0);
3582
3583                         /* Dump a message */
3584 #ifdef JP
3585                         msg_format("%^s¤ÏÀï¤¤¤ò·è°Õ¤·¤¿¡ª", m_name);
3586 #else
3587                         msg_format("%^s turns to fight!", m_name);
3588 #endif
3589                 }
3590
3591                 if (m_ptr->ml) chg_virtue(V_COMPASSION, -1);
3592
3593                 /* XXX XXX XXX Actually do something now (?) */
3594         }
3595 }
3596
3597 /*
3598  * Process all the "live" monsters, once per game turn.
3599  *
3600  * During each game turn, we scan through the list of all the "live" monsters,
3601  * (backwards, so we can excise any "freshly dead" monsters), energizing each
3602  * monster, and allowing fully energized monsters to move, attack, pass, etc.
3603  *
3604  * Note that monsters can never move in the monster array (except when the
3605  * "compact_monsters()" function is called by "dungeon()" or "save_player()").
3606  *
3607  * This function is responsible for at least half of the processor time
3608  * on a normal system with a "normal" amount of monsters and a player doing
3609  * normal things.
3610  *
3611  * When the player is resting, virtually 90% of the processor time is spent
3612  * in this function, and its children, "process_monster()" and "make_move()".
3613  *
3614  * Most of the rest of the time is spent in "update_view()" and "lite_spot()",
3615  * especially when the player is running.
3616  *
3617  * Note the special "MFLAG_BORN" flag, which allows us to ignore "fresh"
3618  * monsters while they are still being "born".  A monster is "fresh" only
3619  * during the turn in which it is created, and we use the "hack_m_idx" to
3620  * determine if the monster is yet to be processed during the current turn.
3621  *
3622  * Note the special "MFLAG_NICE" flag, which allows the player to get one
3623  * move before any "nasty" monsters get to use their spell attacks.
3624  *
3625  * Note that when the "knowledge" about the currently tracked monster
3626  * changes (flags, attacks, spells), we induce a redraw of the monster
3627  * recall window.
3628  */
3629 void process_monsters(void)
3630 {
3631         int             i;
3632         int             fx, fy;
3633
3634         bool            test;
3635
3636         monster_type    *m_ptr;
3637         monster_race    *r_ptr;
3638
3639         int             old_monster_race_idx;
3640
3641         u32b    old_r_flags1 = 0L;
3642         u32b    old_r_flags2 = 0L;
3643         u32b    old_r_flags3 = 0L;
3644         u32b    old_r_flags4 = 0L;
3645         u32b    old_r_flags5 = 0L;
3646         u32b    old_r_flags6 = 0L;
3647         u32b    old_r_flagsr = 0L;
3648
3649         byte    old_r_blows0 = 0;
3650         byte    old_r_blows1 = 0;
3651         byte    old_r_blows2 = 0;
3652         byte    old_r_blows3 = 0;
3653
3654         byte    old_r_cast_spell = 0;
3655
3656         int speed;
3657
3658         /* Clear monster fighting indicator */
3659         mon_fight = FALSE;
3660
3661         /* Memorize old race */
3662         old_monster_race_idx = p_ptr->monster_race_idx;
3663
3664         /* Acquire knowledge */
3665         if (p_ptr->monster_race_idx)
3666         {
3667                 /* Acquire current monster */
3668                 r_ptr = &r_info[p_ptr->monster_race_idx];
3669
3670                 /* Memorize flags */
3671                 old_r_flags1 = r_ptr->r_flags1;
3672                 old_r_flags2 = r_ptr->r_flags2;
3673                 old_r_flags3 = r_ptr->r_flags3;
3674                 old_r_flags4 = r_ptr->r_flags4;
3675                 old_r_flags5 = r_ptr->r_flags5;
3676                 old_r_flags6 = r_ptr->r_flags6;
3677                 old_r_flagsr = r_ptr->r_flagsr;
3678
3679                 /* Memorize blows */
3680                 old_r_blows0 = r_ptr->r_blows[0];
3681                 old_r_blows1 = r_ptr->r_blows[1];
3682                 old_r_blows2 = r_ptr->r_blows[2];
3683                 old_r_blows3 = r_ptr->r_blows[3];
3684
3685                 /* Memorize castings */
3686                 old_r_cast_spell = r_ptr->r_cast_spell;
3687         }
3688
3689
3690         /* Process the monsters (backwards) */
3691         for (i = m_max - 1; i >= 1; i--)
3692         {
3693                 /* Access the monster */
3694                 m_ptr = &m_list[i];
3695                 r_ptr = &r_info[m_ptr->r_idx];
3696
3697                 /* Handle "leaving" */
3698                 if (p_ptr->leaving) break;
3699
3700                 /* Ignore "dead" monsters */
3701                 if (!m_ptr->r_idx) continue;
3702
3703                 if (p_ptr->wild_mode) continue;
3704
3705
3706                 /* Handle "fresh" monsters */
3707                 if (m_ptr->mflag & MFLAG_BORN)
3708                 {
3709                         /* No longer "fresh" */
3710                         m_ptr->mflag &= ~(MFLAG_BORN);
3711
3712                         /* Skip */
3713                         continue;
3714                 }
3715
3716                 /* Hack -- Require proximity */
3717                 if (m_ptr->cdis >= AAF_LIMIT) continue;
3718
3719
3720                 /* Access the location */
3721                 fx = m_ptr->fx;
3722                 fy = m_ptr->fy;
3723
3724                 /* Flow by smell is allowed */
3725                 if (!p_ptr->no_flowed)
3726                 {
3727                         m_ptr->mflag2 &= ~MFLAG2_NOFLOW;
3728                 }
3729
3730                 /* Assume no move */
3731                 test = FALSE;
3732
3733                 /* Handle "sensing radius" */
3734                 if (m_ptr->cdis <= (is_pet(m_ptr) ? (r_ptr->aaf > MAX_SIGHT ? MAX_SIGHT : r_ptr->aaf) : r_ptr->aaf))
3735                 {
3736                         /* We can "sense" the player */
3737                         test = TRUE;
3738                 }
3739
3740                 /* Handle "sight" and "aggravation" */
3741                 else if ((m_ptr->cdis <= MAX_SIGHT) &&
3742                         (player_has_los_bold(fy, fx) || (p_ptr->cursed & TRC_AGGRAVATE)))
3743                 {
3744                         /* We can "see" or "feel" the player */
3745                         test = TRUE;
3746                 }
3747
3748 #if 0 /* (cave[py][px].when == cave[fy][fx].when) is always FALSE... */
3749                 /* Hack -- Monsters can "smell" the player from far away */
3750                 /* Note that most monsters have "aaf" of "20" or so */
3751                 else if (!(m_ptr->mflag2 & MFLAG2_NOFLOW) &&
3752                         cave_have_flag_bold(py, px, FF_MOVE) &&
3753                         (cave[py][px].when == cave[fy][fx].when) &&
3754                         (cave[fy][fx].dist < MONSTER_FLOW_DEPTH) &&
3755                         (cave[fy][fx].dist < r_ptr->aaf))
3756                 {
3757                         /* We can "smell" the player */
3758                         test = TRUE;
3759                 }
3760 #endif
3761                 else if (m_ptr->target_y) test = TRUE;
3762
3763                 /* Do nothing */
3764                 if (!test) continue;
3765
3766
3767                 if (p_ptr->riding == i)
3768                         speed = p_ptr->pspeed;
3769                 else
3770                 {
3771                         speed = m_ptr->mspeed;
3772
3773                         /* Monsters move quickly in Nightmare mode */
3774                         if (ironman_nightmare) speed += 5;
3775
3776                         if (MON_FAST(m_ptr)) speed += 10;
3777                         if (MON_SLOW(m_ptr)) speed -= 10;
3778                 }
3779
3780                 /* Give this monster some energy */
3781                 m_ptr->energy_need -= SPEED_TO_ENERGY(speed);
3782
3783                 /* Not enough energy to move */
3784                 if (m_ptr->energy_need > 0) continue;
3785
3786                 /* Use up "some" energy */
3787                 m_ptr->energy_need += ENERGY_NEED();
3788
3789
3790                 /* Save global index */
3791                 hack_m_idx = i;
3792
3793                 /* Process the monster */
3794                 process_monster(i);
3795
3796                 reset_target(m_ptr);
3797
3798                 /* Give up flow_by_smell when it might useless */
3799                 if (p_ptr->no_flowed && one_in_(3))
3800                         m_ptr->mflag2 |= MFLAG2_NOFLOW;
3801
3802                 /* Hack -- notice death or departure */
3803                 if (!p_ptr->playing || p_ptr->is_dead) break;
3804
3805                 /* Notice leaving */
3806                 if (p_ptr->leaving) break;
3807         }
3808
3809         /* Reset global index */
3810         hack_m_idx = 0;
3811
3812
3813         /* Tracking a monster race (the same one we were before) */
3814         if (p_ptr->monster_race_idx && (p_ptr->monster_race_idx == old_monster_race_idx))
3815         {
3816                 /* Acquire monster race */
3817                 r_ptr = &r_info[p_ptr->monster_race_idx];
3818
3819                 /* Check for knowledge change */
3820                 if ((old_r_flags1 != r_ptr->r_flags1) ||
3821                         (old_r_flags2 != r_ptr->r_flags2) ||
3822                         (old_r_flags3 != r_ptr->r_flags3) ||
3823                         (old_r_flags4 != r_ptr->r_flags4) ||
3824                         (old_r_flags5 != r_ptr->r_flags5) ||
3825                         (old_r_flags6 != r_ptr->r_flags6) ||
3826                         (old_r_flagsr != r_ptr->r_flagsr) ||
3827                         (old_r_blows0 != r_ptr->r_blows[0]) ||
3828                         (old_r_blows1 != r_ptr->r_blows[1]) ||
3829                         (old_r_blows2 != r_ptr->r_blows[2]) ||
3830                         (old_r_blows3 != r_ptr->r_blows[3]) ||
3831                         (old_r_cast_spell != r_ptr->r_cast_spell))
3832                 {
3833                         /* Window stuff */
3834                         p_ptr->window |= (PW_MONSTER);
3835                 }
3836         }
3837 }
3838
3839
3840 int get_mproc_idx(int m_idx, int mproc_type)
3841 {
3842         s16b *cur_mproc_list = mproc_list[mproc_type];
3843         int i;
3844
3845         for (i = mproc_max[mproc_type] - 1; i >= 0; i--)
3846         {
3847                 if (cur_mproc_list[i] == m_idx) return i;
3848         }
3849
3850         return -1;
3851 }
3852
3853
3854 static void mproc_add(int m_idx, int mproc_type)
3855 {
3856         if (mproc_max[mproc_type] < max_m_idx) mproc_list[mproc_type][mproc_max[mproc_type]++] = m_idx;
3857 }
3858
3859
3860 static void mproc_remove(int m_idx, int mproc_type)
3861 {
3862         int mproc_idx = get_mproc_idx(m_idx, mproc_type);
3863         if (mproc_idx >= 0) mproc_list[mproc_type][mproc_idx] = mproc_list[mproc_type][--mproc_max[mproc_type]];
3864 }
3865
3866
3867 /*
3868  * Initialize monster process
3869  */
3870 void mproc_init(void)
3871 {
3872         monster_type *m_ptr;
3873         int          i, cmi;
3874
3875         /* Reset "mproc_max[]" */
3876         for (cmi = 0; cmi < MAX_MTIMED; cmi++) mproc_max[cmi] = 0;
3877
3878         /* Process the monsters (backwards) */
3879         for (i = m_max - 1; i >= 1; i--)
3880         {
3881                 /* Access the monster */
3882                 m_ptr = &m_list[i];
3883
3884                 /* Ignore "dead" monsters */
3885                 if (!m_ptr->r_idx) continue;
3886
3887                 for (cmi = 0; cmi < MAX_MTIMED; cmi++)
3888                 {
3889                         if (m_ptr->mtimed[cmi]) mproc_add(i, cmi);
3890                 }
3891         }
3892 }
3893
3894
3895 /*
3896  * Set "m_ptr->mtimed[MTIMED_CSLEEP]", notice observable changes
3897  */
3898 bool set_monster_csleep(int m_idx, int v)
3899 {
3900         monster_type *m_ptr = &m_list[m_idx];
3901         bool notice = FALSE;
3902
3903         /* Hack -- Force good values */
3904         v = (v > 10000) ? 10000 : (v < 0) ? 0 : v;
3905
3906         /* Open */
3907         if (v)
3908         {
3909                 if (!MON_CSLEEP(m_ptr))
3910                 {
3911                         mproc_add(m_idx, MTIMED_CSLEEP);
3912                         notice = TRUE;
3913                 }
3914         }
3915
3916         /* Shut */
3917         else
3918         {
3919                 if (MON_CSLEEP(m_ptr))
3920                 {
3921                         mproc_remove(m_idx, MTIMED_CSLEEP);
3922                         notice = TRUE;
3923                 }
3924         }
3925
3926         /* Use the value */
3927         m_ptr->mtimed[MTIMED_CSLEEP] = v;
3928
3929         if (!notice) return FALSE;
3930
3931         if (m_ptr->ml)
3932         {
3933                 /* Update health bar as needed */
3934                 if (p_ptr->health_who == m_idx) p_ptr->redraw |= (PR_HEALTH);
3935                 if (p_ptr->riding == m_idx) p_ptr->redraw |= (PR_UHEALTH);
3936         }
3937
3938         if (r_info[m_ptr->r_idx].flags7 & RF7_HAS_LD_MASK) p_ptr->update |= (PU_MON_LITE);
3939
3940         return TRUE;
3941 }
3942
3943
3944 /*
3945  * Set "m_ptr->mtimed[MTIMED_FAST]", notice observable changes
3946  */
3947 bool set_monster_fast(int m_idx, int v)
3948 {
3949         monster_type *m_ptr = &m_list[m_idx];
3950         bool notice = FALSE;
3951
3952         /* Hack -- Force good values */
3953         v = (v > 200) ? 200 : (v < 0) ? 0 : v;
3954
3955         /* Open */
3956         if (v)
3957         {
3958                 if (!MON_FAST(m_ptr))
3959                 {
3960                         mproc_add(m_idx, MTIMED_FAST);
3961                         notice = TRUE;
3962                 }
3963         }
3964
3965         /* Shut */
3966         else
3967         {
3968                 if (MON_FAST(m_ptr))
3969                 {
3970                         mproc_remove(m_idx, MTIMED_FAST);
3971                         notice = TRUE;
3972                 }
3973         }
3974
3975         /* Use the value */
3976         m_ptr->mtimed[MTIMED_FAST] = v;
3977
3978         if (!notice) return FALSE;
3979
3980         if ((p_ptr->riding == m_idx) && !p_ptr->leaving) p_ptr->update |= (PU_BONUS);
3981
3982         return TRUE;
3983 }
3984
3985
3986 /*
3987  * Set "m_ptr->mtimed[MTIMED_SLOW]", notice observable changes
3988  */
3989 bool set_monster_slow(int m_idx, int v)
3990 {
3991         monster_type *m_ptr = &m_list[m_idx];
3992         bool notice = FALSE;
3993
3994         /* Hack -- Force good values */
3995         v = (v > 200) ? 200 : (v < 0) ? 0 : v;
3996
3997         /* Open */
3998         if (v)
3999         {
4000                 if (!MON_SLOW(m_ptr))
4001                 {
4002                         mproc_add(m_idx, MTIMED_SLOW);
4003                         notice = TRUE;
4004                 }
4005         }
4006
4007         /* Shut */
4008         else
4009         {
4010                 if (MON_SLOW(m_ptr))
4011                 {
4012                         mproc_remove(m_idx, MTIMED_SLOW);
4013                         notice = TRUE;
4014                 }
4015         }
4016
4017         /* Use the value */
4018         m_ptr->mtimed[MTIMED_SLOW] = v;
4019
4020         if (!notice) return FALSE;
4021
4022         if ((p_ptr->riding == m_idx) && !p_ptr->leaving) p_ptr->update |= (PU_BONUS);
4023
4024         return TRUE;
4025 }
4026
4027
4028 /*
4029  * Set "m_ptr->mtimed[MTIMED_STUNNED]", notice observable changes
4030  */
4031 bool set_monster_stunned(int m_idx, int v)
4032 {
4033         monster_type *m_ptr = &m_list[m_idx];
4034         bool notice = FALSE;
4035
4036         /* Hack -- Force good values */
4037         v = (v > 200) ? 200 : (v < 0) ? 0 : v;
4038
4039         /* Open */
4040         if (v)
4041         {
4042                 if (!MON_STUNNED(m_ptr))
4043                 {
4044                         mproc_add(m_idx, MTIMED_STUNNED);
4045                         notice = TRUE;
4046                 }
4047         }
4048
4049         /* Shut */
4050         else
4051         {
4052                 if (MON_STUNNED(m_ptr))
4053                 {
4054                         mproc_remove(m_idx, MTIMED_STUNNED);
4055                         notice = TRUE;
4056                 }
4057         }
4058
4059         /* Use the value */
4060         m_ptr->mtimed[MTIMED_STUNNED] = v;
4061
4062         return notice;
4063 }
4064
4065
4066 /*
4067  * Set "m_ptr->mtimed[MTIMED_CONFUSED]", notice observable changes
4068  */
4069 bool set_monster_confused(int m_idx, int v)
4070 {
4071         monster_type *m_ptr = &m_list[m_idx];
4072         bool notice = FALSE;
4073
4074         /* Hack -- Force good values */
4075         v = (v > 200) ? 200 : (v < 0) ? 0 : v;
4076
4077         /* Open */
4078         if (v)
4079         {
4080                 if (!MON_CONFUSED(m_ptr))
4081                 {
4082                         mproc_add(m_idx, MTIMED_CONFUSED);
4083                         notice = TRUE;
4084                 }
4085         }
4086
4087         /* Shut */
4088         else
4089         {
4090                 if (MON_CONFUSED(m_ptr))
4091                 {
4092                         mproc_remove(m_idx, MTIMED_CONFUSED);
4093                         notice = TRUE;
4094                 }
4095         }
4096
4097         /* Use the value */
4098         m_ptr->mtimed[MTIMED_CONFUSED] = v;
4099
4100         return notice;
4101 }
4102
4103
4104 /*
4105  * Set "m_ptr->mtimed[MTIMED_MONFEAR]", notice observable changes
4106  */
4107 bool set_monster_monfear(int m_idx, int v)
4108 {
4109         monster_type *m_ptr = &m_list[m_idx];
4110         bool notice = FALSE;
4111
4112         /* Hack -- Force good values */
4113         v = (v > 200) ? 200 : (v < 0) ? 0 : v;
4114
4115         /* Open */
4116         if (v)
4117         {
4118                 if (!MON_MONFEAR(m_ptr))
4119                 {
4120                         mproc_add(m_idx, MTIMED_MONFEAR);
4121                         notice = TRUE;
4122                 }
4123         }
4124
4125         /* Shut */
4126         else
4127         {
4128                 if (MON_MONFEAR(m_ptr))
4129                 {
4130                         mproc_remove(m_idx, MTIMED_MONFEAR);
4131                         notice = TRUE;
4132                 }
4133         }
4134
4135         /* Use the value */
4136         m_ptr->mtimed[MTIMED_MONFEAR] = v;
4137
4138         if (!notice) return FALSE;
4139
4140         if (m_ptr->ml)
4141         {
4142                 /* Update health bar as needed */
4143                 if (p_ptr->health_who == m_idx) p_ptr->redraw |= (PR_HEALTH);
4144                 if (p_ptr->riding == m_idx) p_ptr->redraw |= (PR_UHEALTH);
4145         }
4146
4147         return TRUE;
4148 }
4149
4150
4151 /*
4152  * Set "m_ptr->mtimed[MTIMED_INVULNER]", notice observable changes
4153  */
4154 bool set_monster_invulner(int m_idx, int v, bool energy_need)
4155 {
4156         monster_type *m_ptr = &m_list[m_idx];
4157         bool notice = FALSE;
4158
4159         /* Hack -- Force good values */
4160         v = (v > 200) ? 200 : (v < 0) ? 0 : v;
4161
4162         /* Open */
4163         if (v)
4164         {
4165                 if (!MON_INVULNER(m_ptr))
4166                 {
4167                         mproc_add(m_idx, MTIMED_INVULNER);
4168                         notice = TRUE;
4169                 }
4170         }
4171
4172         /* Shut */
4173         else
4174         {
4175                 if (MON_INVULNER(m_ptr))
4176                 {
4177                         mproc_remove(m_idx, MTIMED_INVULNER);
4178                         if (energy_need && !p_ptr->wild_mode) m_ptr->energy_need += ENERGY_NEED();
4179                         notice = TRUE;
4180                 }
4181         }
4182
4183         /* Use the value */
4184         m_ptr->mtimed[MTIMED_INVULNER] = v;
4185
4186         if (!notice) return FALSE;
4187
4188         if (m_ptr->ml)
4189         {
4190                 /* Update health bar as needed */
4191                 if (p_ptr->health_who == m_idx) p_ptr->redraw |= (PR_HEALTH);
4192                 if (p_ptr->riding == m_idx) p_ptr->redraw |= (PR_UHEALTH);
4193         }
4194
4195         return TRUE;
4196 }
4197
4198
4199 static u32b csleep_noise;
4200
4201 static void process_monsters_mtimed_aux(int m_idx, int mtimed_idx)
4202 {
4203         monster_type *m_ptr = &m_list[m_idx];
4204
4205         switch (mtimed_idx)
4206         {
4207         case MTIMED_CSLEEP:
4208         {
4209                 monster_race *r_ptr = &r_info[m_ptr->r_idx];
4210
4211                 /* Assume does not wake up */
4212                 bool test = FALSE;
4213
4214                 /* Hack -- Require proximity */
4215                 if (m_ptr->cdis < AAF_LIMIT)
4216                 {
4217                         /* Handle "sensing radius" */
4218                         if (m_ptr->cdis <= (is_pet(m_ptr) ? ((r_ptr->aaf > MAX_SIGHT) ? MAX_SIGHT : r_ptr->aaf) : r_ptr->aaf))
4219                         {
4220                                 /* We may wake up */
4221                                 test = TRUE;
4222                         }
4223
4224                         /* Handle "sight" and "aggravation" */
4225                         else if ((m_ptr->cdis <= MAX_SIGHT) && (player_has_los_bold(m_ptr->fy, m_ptr->fx)))
4226                         {
4227                                 /* We may wake up */
4228                                 test = TRUE;
4229                         }
4230                 }
4231
4232                 if (test)
4233                 {
4234                         u32b notice = randint0(1024);
4235
4236                         /* Nightmare monsters are more alert */
4237                         if (ironman_nightmare) notice /= 2;
4238
4239                         /* Hack -- See if monster "notices" player */
4240                         if ((notice * notice * notice) <= csleep_noise)
4241                         {
4242                                 /* Hack -- amount of "waking" */
4243                                 /* Wake up faster near the player */
4244                                 int d = (m_ptr->cdis < AAF_LIMIT / 2) ? (AAF_LIMIT / m_ptr->cdis) : 1;
4245
4246                                 /* Hack -- amount of "waking" is affected by speed of player */
4247                                 d = (d * SPEED_TO_ENERGY(p_ptr->pspeed)) / 10;
4248                                 if (d < 0) d = 1;
4249
4250                                 /* Monster wakes up "a little bit" */
4251
4252                                 /* Still asleep */
4253                                 if (!set_monster_csleep(m_idx, MON_CSLEEP(m_ptr) - d))
4254                                 {
4255                                         /* Notice the "not waking up" */
4256                                         if (is_original_ap_and_seen(m_ptr))
4257                                         {
4258                                                 /* Hack -- Count the ignores */
4259                                                 if (r_ptr->r_ignore < MAX_UCHAR) r_ptr->r_ignore++;
4260                                         }
4261                                 }
4262
4263                                 /* Just woke up */
4264                                 else
4265                                 {
4266                                         /* Notice the "waking up" */
4267                                         if (m_ptr->ml)
4268                                         {
4269                                                 char m_name[80];
4270
4271                                                 /* Acquire the monster name */
4272                                                 monster_desc(m_name, m_ptr, 0);
4273
4274                                                 /* Dump a message */
4275 #ifdef JP
4276                                                 msg_format("%^s¤¬ÌÜ¤ò³Ð¤Þ¤·¤¿¡£", m_name);
4277 #else
4278                                                 msg_format("%^s wakes up.", m_name);
4279 #endif
4280                                         }
4281
4282                                         if (is_original_ap_and_seen(m_ptr))
4283                                         {
4284                                                 /* Hack -- Count the wakings */
4285                                                 if (r_ptr->r_wake < MAX_UCHAR) r_ptr->r_wake++;
4286                                         }
4287                                 }
4288                         }
4289                 }
4290                 break;
4291         }
4292
4293         case MTIMED_FAST:
4294                 /* Reduce by one, note if expires */
4295                 if (set_monster_fast(m_idx, MON_FAST(m_ptr) - 1))
4296                 {
4297                         if (is_seen(m_ptr))
4298                         {
4299                                 char m_name[80];
4300
4301                                 /* Acquire the monster name */
4302                                 monster_desc(m_name, m_ptr, 0);
4303
4304                                 /* Dump a message */
4305 #ifdef JP
4306                                 msg_format("%^s¤Ï¤â¤¦²ÃÂ®¤µ¤ì¤Æ¤¤¤Ê¤¤¡£", m_name);
4307 #else
4308                                 msg_format("%^s is no longer fast.", m_name);
4309 #endif
4310                         }
4311                 }
4312                 break;
4313
4314         case MTIMED_SLOW:
4315                 /* Reduce by one, note if expires */
4316                 if (set_monster_slow(m_idx, MON_SLOW(m_ptr) - 1))
4317                 {
4318                         if (is_seen(m_ptr))
4319                         {
4320                                 char m_name[80];
4321
4322                                 /* Acquire the monster name */
4323                                 monster_desc(m_name, m_ptr, 0);
4324
4325                                 /* Dump a message */
4326 #ifdef JP
4327                                 msg_format("%^s¤Ï¤â¤¦¸ºÂ®¤µ¤ì¤Æ¤¤¤Ê¤¤¡£", m_name);
4328 #else
4329                                 msg_format("%^s is no longer slow.", m_name);
4330 #endif
4331                         }
4332                 }
4333                 break;
4334
4335         case MTIMED_STUNNED:
4336         {
4337                 int rlev = r_info[m_ptr->r_idx].level;
4338
4339                 /* Recover from stun */
4340                 if (set_monster_stunned(m_idx, (randint0(10000) <= rlev * rlev) ? 0 : (MON_STUNNED(m_ptr) - 1)))
4341                 {
4342                         /* Message if visible */
4343                         if (is_seen(m_ptr))
4344                         {
4345                                 char m_name[80];
4346
4347                                 /* Acquire the monster name */
4348                                 monster_desc(m_name, m_ptr, 0);
4349
4350                                 /* Dump a message */
4351 #ifdef JP
4352                                 msg_format("%^s¤ÏÛ¯Û°¾õÂÖ¤«¤éÎ©¤ÁÄ¾¤Ã¤¿¡£", m_name);
4353 #else
4354                                 msg_format("%^s is no longer stunned.", m_name);
4355 #endif
4356                         }
4357                 }
4358                 break;
4359         }
4360
4361         case MTIMED_CONFUSED:
4362                 /* Reduce the confusion */
4363                 if (set_monster_confused(m_idx, MON_CONFUSED(m_ptr) - randint1(r_info[m_ptr->r_idx].level / 20 + 1)))
4364                 {
4365                         /* Message if visible */
4366                         if (is_seen(m_ptr))
4367                         {
4368                                 char m_name[80];
4369
4370                                 /* Acquire the monster name */
4371                                 monster_desc(m_name, m_ptr, 0);
4372
4373                                 /* Dump a message */
4374 #ifdef JP
4375                                 msg_format("%^s¤Ïº®Íð¤«¤éÎ©¤ÁÄ¾¤Ã¤¿¡£", m_name);
4376 #else
4377                                 msg_format("%^s is no longer confused.", m_name);
4378 #endif
4379                         }
4380                 }
4381                 break;
4382
4383         case MTIMED_MONFEAR:
4384                 /* Reduce the fear */
4385                 if (set_monster_monfear(m_idx, MON_MONFEAR(m_ptr) - randint1(r_info[m_ptr->r_idx].level / 20 + 1)))
4386                 {
4387                         /* Visual note */
4388                         if (is_seen(m_ptr))
4389                         {
4390                                 char m_name[80];
4391 #ifndef JP
4392                                 char m_poss[80];
4393
4394                                 /* Acquire the monster possessive */
4395                                 monster_desc(m_poss, m_ptr, MD_PRON_VISIBLE | MD_POSSESSIVE);
4396 #endif
4397
4398                                 /* Acquire the monster name */
4399                                 monster_desc(m_name, m_ptr, 0);
4400
4401                                 /* Dump a message */
4402 #ifdef JP
4403                                 msg_format("%^s¤ÏÍ¦µ¤¤ò¼è¤êÌá¤·¤¿¡£", m_name);
4404 #else
4405                                 msg_format("%^s recovers %s courage.", m_name, m_poss);
4406 #endif
4407                         }
4408                 }
4409                 break;
4410
4411         case MTIMED_INVULNER:
4412                 /* Reduce by one, note if expires */
4413                 if (set_monster_invulner(m_idx, MON_INVULNER(m_ptr) - 1, TRUE))
4414                 {
4415                         if (is_seen(m_ptr))
4416                         {
4417                                 char m_name[80];
4418
4419                                 /* Acquire the monster name */
4420                                 monster_desc(m_name, m_ptr, 0);
4421
4422                                 /* Dump a message */
4423 #ifdef JP
4424                                 msg_format("%^s¤Ï¤â¤¦ÌµÅ¨¤Ç¤Ê¤¤¡£", m_name);
4425 #else
4426                                 msg_format("%^s is no longer invulnerable.", m_name);
4427 #endif
4428                         }
4429                 }
4430                 break;
4431         }
4432 }
4433
4434
4435 /*
4436  * Process the counters of monsters (once per 10 game turns)
4437  *
4438  * These functions are to process monsters' counters same as player's.
4439  */
4440 void process_monsters_mtimed(int mtimed_idx)
4441 {
4442         int  i;
4443         s16b *cur_mproc_list = mproc_list[mtimed_idx];
4444
4445         /* Hack -- calculate the "player noise" */
4446         if (mtimed_idx == MTIMED_CSLEEP) csleep_noise = (1L << (30 - p_ptr->skill_stl));
4447
4448         /* Process the monsters (backwards) */
4449         for (i = mproc_max[mtimed_idx] - 1; i >= 0; i--)
4450         {
4451                 /* Access the monster */
4452                 process_monsters_mtimed_aux(cur_mproc_list[i], mtimed_idx);
4453         }
4454 }
4455
4456
4457 void dispel_monster_status(int m_idx)
4458 {
4459         monster_type *m_ptr = &m_list[m_idx];
4460         char         m_name[80];
4461
4462         monster_desc(m_name, m_ptr, 0);
4463         if (set_monster_invulner(m_idx, 0, TRUE))
4464         {
4465 #ifdef JP
4466                 if (m_ptr->ml) msg_format("%s¤Ï¤â¤¦ÌµÅ¨¤Ç¤Ï¤Ê¤¤¡£", m_name);
4467 #else
4468                 if (m_ptr->ml) msg_format("%^s is no longer invulnerable.", m_name);
4469 #endif
4470         }
4471         if (set_monster_fast(m_idx, 0))
4472         {
4473 #ifdef JP
4474                 if (m_ptr->ml) msg_format("%s¤Ï¤â¤¦²ÃÂ®¤µ¤ì¤Æ¤¤¤Ê¤¤¡£", m_name);
4475 #else
4476                 if (m_ptr->ml) msg_format("%^s is no longer fast.", m_name);
4477 #endif
4478         }
4479         if (set_monster_slow(m_idx, 0))
4480         {
4481 #ifdef JP
4482                 if (m_ptr->ml) msg_format("%s¤Ï¤â¤¦¸ºÂ®¤µ¤ì¤Æ¤¤¤Ê¤¤¡£", m_name);
4483 #else
4484                 if (m_ptr->ml) msg_format("%^s is no longer slow.", m_name);
4485 #endif
4486         }
4487 }
4488
4489
4490 bool process_the_world(int num, int who, bool vs_player)
4491 {
4492         monster_type *m_ptr = &m_list[hack_m_idx];  /* the world monster */
4493
4494         if(world_monster) return (FALSE);
4495
4496         if(vs_player)
4497         {
4498                 char m_name[80];
4499                 monster_desc(m_name, m_ptr, 0);
4500
4501                 if (who == 1)
4502 #ifdef JP
4503                         msg_print("¡Ö¡Ø¥¶¡¦¥ï¡¼¥ë¥É¡Ù¡ª»þ¤Ï»ß¤Þ¤Ã¤¿¡ª¡×");
4504 #else
4505                         msg_format("%s yells 'The World! Time has stopped!'", m_name);
4506 #endif
4507                 else if (who == 3)
4508 #ifdef JP
4509                         msg_print("¡Ö»þ¤è¡ª¡×");
4510 #else
4511                         msg_format("%s yells 'Time!'", m_name);
4512 #endif
4513                 else msg_print("hek!");
4514
4515                 msg_print(NULL);
4516         }
4517
4518         /* This monster cast spells */
4519         world_monster = hack_m_idx;
4520
4521         if (vs_player) do_cmd_redraw();
4522
4523         while(num--)
4524         {
4525                 if(!m_ptr->r_idx) break;
4526                 process_monster(world_monster);
4527
4528                 reset_target(m_ptr);
4529
4530                 /* Notice stuff */
4531                 if (p_ptr->notice) notice_stuff();
4532
4533                 /* Update stuff */
4534                 if (p_ptr->update) update_stuff();
4535
4536                 /* Redraw stuff */
4537                 if (p_ptr->redraw) redraw_stuff();
4538
4539                 /* Redraw stuff */
4540                 if (p_ptr->window) window_stuff();
4541
4542                 /* Delay */
4543                 if (vs_player) Term_xtra(TERM_XTRA_DELAY, 500);
4544         }
4545
4546         /* Redraw map */
4547         p_ptr->redraw |= (PR_MAP);
4548
4549         /* Update monsters */
4550         p_ptr->update |= (PU_MONSTERS);
4551
4552         /* Window stuff */
4553         p_ptr->window |= (PW_OVERHEAD | PW_DUNGEON);
4554
4555         world_monster = 0;
4556         if (vs_player || (player_has_los_bold(m_ptr->fy, m_ptr->fx) && projectable(py, px, m_ptr->fy, m_ptr->fx)))
4557         {
4558 #ifdef JP
4559                 msg_print("¡Ö»þ¤ÏÆ°¤¤À¤¹¡Ä¡×");
4560 #else
4561                 msg_print("You feel time flowing around you once more.");
4562 #endif
4563                 msg_print(NULL);
4564         }
4565
4566         handle_stuff();
4567
4568         return (TRUE);
4569 }
4570
4571
4572 void monster_gain_exp(int m_idx, int s_idx)
4573 {
4574         monster_type *m_ptr;
4575         monster_race *r_ptr;
4576         monster_race *s_ptr;
4577         int new_exp;
4578
4579         /* Paranoia */
4580         if (m_idx <= 0 || s_idx <= 0) return;
4581
4582         m_ptr = &m_list[m_idx];
4583
4584         /* Paranoia -- Skip dead monsters */
4585         if (!m_ptr->r_idx) return;
4586
4587         r_ptr = &r_info[m_ptr->r_idx];
4588         s_ptr = &r_info[s_idx];
4589
4590         if (p_ptr->inside_battle) return;
4591
4592         if (!r_ptr->next_exp) return;
4593
4594         new_exp = s_ptr->mexp * s_ptr->level / (r_ptr->level + 2);
4595         if (m_idx == p_ptr->riding) new_exp = (new_exp + 1) / 2;
4596         if (!dun_level) new_exp /= 5;
4597         m_ptr->exp += new_exp;
4598         if (m_ptr->mflag2 & MFLAG2_CHAMELEON) return;
4599
4600         if (m_ptr->exp >= r_ptr->next_exp)
4601         {
4602                 char m_name[80];
4603                 int old_hp = m_ptr->hp;
4604                 int old_maxhp = m_ptr->max_maxhp;
4605                 int old_r_idx = m_ptr->r_idx;
4606                 byte old_sub_align = m_ptr->sub_align;
4607
4608                 /* Hack -- Reduce the racial counter of previous monster */
4609                 real_r_ptr(m_ptr)->cur_num--;
4610
4611                 monster_desc(m_name, m_ptr, 0);
4612                 m_ptr->r_idx = r_ptr->next_r_idx;
4613
4614                 /* Count the monsters on the level */
4615                 real_r_ptr(m_ptr)->cur_num++;
4616
4617                 m_ptr->ap_r_idx = m_ptr->r_idx;
4618                 r_ptr = &r_info[m_ptr->r_idx];
4619
4620                 if (r_ptr->flags1 & RF1_FORCE_MAXHP)
4621                 {
4622                         m_ptr->max_maxhp = maxroll(r_ptr->hdice, r_ptr->hside);
4623                 }
4624                 else
4625                 {
4626                         m_ptr->max_maxhp = damroll(r_ptr->hdice, r_ptr->hside);
4627                 }
4628                 if (ironman_nightmare)
4629                 {
4630                         u32b hp = m_ptr->max_maxhp * 2L;
4631
4632                         m_ptr->max_maxhp = (s16b)MIN(30000, hp);
4633                 }
4634                 m_ptr->maxhp = m_ptr->max_maxhp;
4635                 m_ptr->hp = old_hp * m_ptr->maxhp / old_maxhp;
4636
4637                 /* Extract the monster base speed */
4638                 m_ptr->mspeed = get_mspeed(r_ptr);
4639
4640                 /* Sub-alignment of a monster */
4641                 if (!is_pet(m_ptr) && !(r_ptr->flags3 & (RF3_EVIL | RF3_GOOD)))
4642                         m_ptr->sub_align = old_sub_align;
4643                 else
4644                 {
4645                         m_ptr->sub_align = SUB_ALIGN_NEUTRAL;
4646                         if (r_ptr->flags3 & RF3_EVIL) m_ptr->sub_align |= SUB_ALIGN_EVIL;
4647                         if (r_ptr->flags3 & RF3_GOOD) m_ptr->sub_align |= SUB_ALIGN_GOOD;
4648                 }
4649
4650                 m_ptr->exp = 0;
4651
4652                 if (is_pet(m_ptr) || m_ptr->ml)
4653                 {
4654                         if (!ignore_unview || player_can_see_bold(m_ptr->fy, m_ptr->fx))
4655                         {
4656                                 if (p_ptr->image)
4657                                 {
4658                                         monster_race *hallu_race;
4659
4660                                         do
4661                                         {
4662                                                 hallu_race = &r_info[randint1(max_r_idx - 1)];
4663                                         }
4664                                         while (!hallu_race->name || (hallu_race->flags1 & RF1_UNIQUE));
4665
4666 #ifdef JP
4667                                         msg_format("%s¤Ï%s¤Ë¿Ê²½¤·¤¿¡£", m_name, r_name + hallu_race->name);
4668 #else
4669                                         msg_format("%^s evolved into %s.", m_name, r_name + hallu_race->name);
4670 #endif
4671                                 }
4672                                 else
4673                                 {
4674 #ifdef JP
4675                                         msg_format("%s¤Ï%s¤Ë¿Ê²½¤·¤¿¡£", m_name, r_name + r_ptr->name);
4676 #else
4677                                         msg_format("%^s evolved into %s.", m_name, r_name + r_ptr->name);
4678 #endif
4679                                 }
4680                         }
4681
4682                         if (!p_ptr->image) r_info[old_r_idx].r_xtra1 |= MR1_SINKA;
4683
4684                         /* Now you feel very close to this pet. */
4685                         m_ptr->parent_m_idx = 0;
4686                 }
4687                 update_mon(m_idx, FALSE);
4688                 lite_spot(m_ptr->fy, m_ptr->fx);
4689         }
4690         if (m_idx == p_ptr->riding) p_ptr->update |= PU_BONUS;
4691 }