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 && (m_ptr->fx == px) && (m_ptr->fy == py))
  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                         bool can_pass_wall;
  64
  65                         if (!dummy) continue;
  66
  67                         t_idx = dummy;
  68                         t_ptr = &m_list[t_idx];
  69
  70                         /* The monster itself isn't a target */
  71                         if (t_ptr == m_ptr) continue;
  72
  73                         /* Paranoia -- Skip dead monsters */
  74                         if (!t_ptr->r_idx) continue;
  75
  76                         if (is_pet(m_ptr))
  77                         {
  78                                 /* Hack -- only fight away from player */
  79                                 if (p_ptr->pet_follow_distance < 0)
  80                                 {
  81                                         /* No fighting near player */
  82                                         if (t_ptr->cdis <= (0 - p_ptr->pet_follow_distance))
  83                                         {
  84                                                 continue;
  85                                         }
  86                                 }
  87                                 /* Hack -- no fighting away from player */
  88                                 else if ((m_ptr->cdis < t_ptr->cdis) &&
  89                                                         (t_ptr->cdis > p_ptr->pet_follow_distance))
  90                                 {
  91                                         continue;
  92                                 }
  93
  94                                 if (r_ptr->aaf < t_ptr->cdis) continue;
  95                         }
  96
  97                         /* Monster must be 'an enemy' */
  98                         if (!are_enemies(m_ptr, t_ptr)) continue;
  99
 100                         can_pass_wall = (((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)));
 101
 102                         /* Monster must be projectable if we can't pass through walls */
 103                         if (!can_pass_wall &&
 104                                 !projectable(m_ptr->fy, m_ptr->fx, t_ptr->fy, t_ptr->fx))
 105                         {
 106                                 continue;
 107                         }
 108                         if (can_pass_wall &&
 109                                 !in_disintegration_range(m_ptr->fy, m_ptr->fx, t_ptr->fy, t_ptr->fx))
 110                         {
 111                                 continue;
 112                         }
 113
 114                         /* OK -- we've got a target */
 115                         y = t_ptr->fy;
 116                         x = t_ptr->fx;
 117
 118                         break;
 119                 }
 120                 if (!x && !y) return FALSE;
 121         }
 122
 123         /* Extract the direction */
 124         x -= m_ptr->fx;
 125         y -= m_ptr->fy;
 126
 127         /* North */
 128         if ((y < 0) && (x == 0))
 129         {
 130                 mm[0] = 8;
 131                 mm[1] = 7;
 132                 mm[2] = 9;
 133         }
 134         /* South */
 135         else if ((y > 0) && (x == 0))
 136         {
 137                 mm[0] = 2;
 138                 mm[1] = 1;
 139                 mm[2] = 3;
 140         }
 141         /* East */
 142         else if ((x > 0) && (y == 0))
 143         {
 144                 mm[0] = 6;
 145                 mm[1] = 9;
 146                 mm[2] = 3;
 147         }
 148         /* West */
 149         else if ((x < 0) && (y == 0))
 150         {
 151                 mm[0] = 4;
 152                 mm[1] = 7;
 153                 mm[2] = 1;
 154         }
 155         /* North-West */
 156         else if ((y < 0) && (x < 0))
 157         {
 158                 mm[0] = 7;
 159                 mm[1] = 4;
 160                 mm[2] = 8;
 161         }
 162         /* North-East */
 163         else if ((y < 0) && (x > 0))
 164         {
 165                 mm[0] = 9;
 166                 mm[1] = 6;
 167                 mm[2] = 8;
 168         }
 169         /* South-West */
 170         else if ((y > 0) && (x < 0))
 171         {
 172                 mm[0] = 1;
 173                 mm[1] = 4;
 174                 mm[2] = 2;
 175         }
 176         /* South-East */
 177         else if ((y > 0) && (x > 0))
 178         {
 179                 mm[0] = 3;
 180                 mm[1] = 6;
 181                 mm[2] = 2;
 182         }
 183
 184         /* Found a monster */
 185         return TRUE;
 186 }
 187
 188
 189 /*
 190  * Hack, based on mon_take_hit... perhaps all monster attacks on
 191  * other monsters should use this?
 192  */
 193 void mon_take_hit_mon(int m_idx, int dam, bool *fear, cptr note, int who)
 194 {
 195         monster_type    *m_ptr = &m_list[m_idx];
 196
 197         monster_race    *r_ptr = &r_info[m_ptr->r_idx];
 198
 199         char m_name[160];
 200
 201         bool seen = m_ptr->ml;
 202
 203         /* Can the player be aware of this attack? */
 204         bool known = (m_ptr->cdis <= MAX_SIGHT);
 205
 206         /* Extract monster name */
 207         monster_desc(m_name, m_ptr, 0);
 208
 209         /* Redraw (later) if needed */
 210         if (p_ptr->health_who == m_idx) p_ptr->redraw |= (PR_HEALTH);
 211         if (p_ptr->riding == m_idx) p_ptr->redraw |= (PR_UHEALTH);
 212
 213         /* Wake it up */
 214         m_ptr->csleep = 0;
 215
 216         if (p_ptr->riding && (m_idx == p_ptr->riding)) disturb(1, 0);
 217
 218         if (m_ptr->invulner && randint0(PENETRATE_INVULNERABILITY))
 219         {
 220                 if (seen)
 221                 {
 222 #ifdef JP
 223 msg_format("%^s¤Ï¥À¥á¡¼¥¸¤ò¼õ¤±¤Ê¤¤¡£", m_name);
 224 #else
 225                         msg_format("%^s is unharmed.", m_name);
 226 #endif
 227
 228                 }
 229
 230                 return;
 231         }
 232
 233         if (r_ptr->flags3 & RF3_RES_ALL)
 234         {
 235                 if(dam > 0)
 236                 {
 237                         dam /= 100;
 238                         if((dam == 0) && one_in_(3)) dam = 1;
 239                 }
 240                 if (dam==0)
 241                 {
 242                         if (seen)
 243                         {
 244 #ifdef JP
 245 msg_format("%^s¤Ï¥À¥á¡¼¥¸¤ò¼õ¤±¤Ê¤¤¡£", m_name);
 246 #else
 247                                 msg_format("%^s is unharmed.", m_name);
 248 #endif
 249
 250                         }
 251                         return;
 252                 }
 253         }
 254
 255         /* Hurt it */
 256         m_ptr->hp -= dam;
 257
 258         /* It is dead now... or is it? */
 259         if (m_ptr->hp < 0)
 260         {
 261                 if (((r_ptr->flags1 & RF1_UNIQUE) ||
 262                         (r_ptr->flags7 & RF7_UNIQUE_7) ||
 263                         (r_ptr->flags1 & RF1_QUESTOR)) &&
 264                     !p_ptr->inside_battle)
 265                 {
 266                         m_ptr->hp = 1;
 267                 }
 268                 else
 269                 {
 270                         /* Make a sound */
 271                         if (!monster_living(r_ptr))
 272                         {
 273                                 sound(SOUND_N_KILL);
 274                         }
 275                         else
 276                         {
 277                                 sound(SOUND_KILL);
 278                         }
 279
 280                         if (known)
 281                         {
 282                                 monster_desc(m_name, m_ptr, 0x100);
 283                                 /* Unseen death by normal attack */
 284                                 if (!seen)
 285                                 {
 286                                         mon_fight = TRUE;
 287                                 }
 288                                 /* Death by special attack */
 289                                 else if (note)
 290                                 {
 291 #ifdef JP
 292 msg_format("%^s%s", m_name, note);
 293 #else
 294                                         msg_format("%^s%s", m_name, note);
 295 #endif
 296
 297                                 }
 298                                 /* Death by normal attack -- nonliving monster */
 299                                 else if (!monster_living(r_ptr))
 300                                 {
 301 #ifdef JP
 302 msg_format("%^s¤ÏÇË²õ¤µ¤ì¤¿¡£", m_name);
 303 #else
 304                                         msg_format("%^s is destroyed.", m_name);
 305 #endif
 306
 307                                 }
 308                                 /* Death by normal attack -- living monster */
 309                                 else
 310                                 {
 311 #ifdef JP
 312 msg_format("%^s¤Ï»¦¤µ¤ì¤¿¡£", m_name);
 313 #else
 314                                         msg_format("%^s is killed.", m_name);
 315 #endif
 316
 317                                 }
 318                         }
 319
 320                         monster_gain_exp(who, m_ptr->r_idx);
 321
 322                         /* Generate treasure */
 323                         monster_death(m_idx, FALSE);
 324
 325                         /* Delete the monster */
 326                         delete_monster_idx(m_idx);
 327
 328                         /* Not afraid */
 329                         (*fear) = FALSE;
 330
 331                         /* Monster is dead */
 332                         return;
 333                 }
 334         }
 335
 336 #ifdef ALLOW_FEAR
 337
 338         /* Mega-Hack -- Pain cancels fear */
 339         if (m_ptr->monfear && (dam > 0))
 340         {
 341                 int tmp = randint1(dam / 4);
 342
 343                 /* Cure a little fear */
 344                 if (tmp < m_ptr->monfear)
 345                 {
 346                         /* Reduce fear */
 347                         m_ptr->monfear -= tmp;
 348                 }
 349
 350                 /* Cure all the fear */
 351                 else
 352                 {
 353                         /* Cure fear */
 354                         m_ptr->monfear = 0;
 355
 356                         /* No more fear */
 357                         (*fear) = FALSE;
 358                 }
 359         }
 360
 361         /* Sometimes a monster gets scared by damage */
 362         if (!m_ptr->monfear && !(r_ptr->flags3 & RF3_NO_FEAR))
 363         {
 364                 int             percentage;
 365
 366                 /* Percentage of fully healthy */
 367                 percentage = (100L * m_ptr->hp) / m_ptr->maxhp;
 368
 369                 /*
 370                 * Run (sometimes) if at 10% or less of max hit points,
 371                 * or (usually) when hit for half its current hit points
 372                  */
 373                 if (((percentage <= 10) && (randint0(10) < percentage)) ||
 374                         ((dam >= m_ptr->hp) && (randint0(100) < 80)))
 375                 {
 376                         /* Hack -- note fear */
 377                         (*fear) = TRUE;
 378
 379                         /* XXX XXX XXX Hack -- Add some timed fear */
 380                         m_ptr->monfear += (randint1(10) +
 381                                 (((dam >= m_ptr->hp) && (percentage > 7)) ?
 382                                 20 : ((11 - percentage) * 5)));
 383                 }
 384         }
 385
 386 #endif /* ALLOW_FEAR */
 387
 388         if ((dam > 0) && !is_pet(m_ptr) && !is_friendly(m_ptr) && (who != m_idx))
 389         {
 390                 if (is_pet(&m_list[who]) && (m_ptr->target_y != py) && (m_ptr->target_x != px))
 391                 {
 392                         set_target(m_ptr, m_list[who].fy, m_list[who].fx);
 393                 }
 394         }
 395
 396         if (p_ptr->riding && (p_ptr->riding == m_idx) && (dam > 0))
 397         {
 398                 char m_name[80];
 399
 400                 /* Extract monster name */
 401                 monster_desc(m_name, m_ptr, 0);
 402
 403                 if (m_ptr->hp > m_ptr->maxhp/3) dam = (dam + 1) / 2;
 404                 if (rakuba((dam > 200) ? 200 : dam, FALSE))
 405                 {
 406 #ifdef JP
 407 msg_format("%^s¤Ë¿¶¤êÍî¤È¤µ¤ì¤¿¡ª", m_name);
 408 #else
 409                                 msg_format("You have thrown off from %s!", m_name);
 410 #endif
 411                 }
 412         }
 413
 414         /* Not dead yet */
 415         return;
 416 }
 417
 418
 419 /*
 420  * Returns whether a given monster will try to run from the player.
 421  *
 422  * Monsters will attempt to avoid very powerful players.  See below.
 423  *
 424  * Because this function is called so often, little details are important
 425  * for efficiency.  Like not using "mod" or "div" when possible.  And
 426  * attempting to check the conditions in an optimal order.  Note that
 427  * "(x << 2) == (x * 4)" if "x" has enough bits to hold the result.
 428  *
 429  * Note that this function is responsible for about one to five percent
 430  * of the processor use in normal conditions...
 431  */
 432 static int mon_will_run(int m_idx)
 433 {
 434         monster_type *m_ptr = &m_list[m_idx];
 435
 436 #ifdef ALLOW_TERROR
 437
 438         monster_race *r_ptr = &r_info[m_ptr->r_idx];
 439
 440         u16b p_lev, m_lev;
 441         u16b p_chp, p_mhp;
 442         u16b m_chp, m_mhp;
 443         u32b p_val, m_val;
 444
 445 #endif
 446
 447         /* Friends can be commanded to avoid the player */
 448         if (is_pet(m_ptr))
 449         {
 450                 /* Are we trying to avoid the player? */
 451                 return ((p_ptr->pet_follow_distance < 0) &&
 452                                   (m_ptr->cdis <= (0 - p_ptr->pet_follow_distance)));
 453         }
 454
 455         /* Keep monsters from running too far away */
 456         if (m_ptr->cdis > MAX_SIGHT + 5) return (FALSE);
 457
 458         /* All "afraid" monsters will run away */
 459         if (m_ptr->monfear) return (TRUE);
 460
 461 #ifdef ALLOW_TERROR
 462
 463         /* Nearby monsters will not become terrified */
 464         if (m_ptr->cdis <= 5) return (FALSE);
 465
 466         /* Examine player power (level) */
 467         p_lev = p_ptr->lev;
 468
 469         /* Examine monster power (level plus morale) */
 470         m_lev = r_ptr->level + (m_idx & 0x08) + 25;
 471
 472         /* Optimize extreme cases below */
 473         if (m_lev > p_lev + 4) return (FALSE);
 474         if (m_lev + 4 <= p_lev) return (TRUE);
 475
 476         /* Examine player health */
 477         p_chp = p_ptr->chp;
 478         p_mhp = p_ptr->mhp;
 479
 480         /* Examine monster health */
 481         m_chp = m_ptr->hp;
 482         m_mhp = m_ptr->maxhp;
 483
 484         /* Prepare to optimize the calculation */
 485         p_val = (p_lev * p_mhp) + (p_chp << 2); /* div p_mhp */
 486         m_val = (m_lev * m_mhp) + (m_chp << 2); /* div m_mhp */
 487
 488         /* Strong players scare strong monsters */
 489         if (p_val * m_mhp > m_val * p_mhp) return (TRUE);
 490
 491 #endif
 492
 493         /* Assume no terror */
 494         return (FALSE);
 495 }
 496
 497
 498
 499
 500 /*
 501  * Search spell castable grid
 502  */
 503 static bool get_moves_aux2(int m_idx, int *yp, int *xp)
 504 {
 505         int i, y, x, y1, x1, best = 999;
 506
 507         cave_type *c_ptr;
 508         bool can_open_door = FALSE;
 509         int now_cost;
 510
 511         monster_type *m_ptr = &m_list[m_idx];
 512         monster_race *r_ptr = &r_info[m_ptr->r_idx];
 513
 514         /* Monster location */
 515         y1 = m_ptr->fy;
 516         x1 = m_ptr->fx;
 517
 518         /* Monster can already cast spell to player */
 519         if (projectable(y1, x1, py, px)) return (FALSE);
 520
 521         /* Set current grid cost */
 522         now_cost = cave[y1][x1].cost;
 523         if (now_cost == 0) now_cost = 999;
 524
 525         /* Can monster bash or open doors? */
 526         if (r_ptr->flags2 & (RF2_BASH_DOOR | RF2_OPEN_DOOR))
 527         {
 528                 can_open_door = TRUE;
 529         }
 530
 531         /* Check nearby grids, diagonals first */
 532         for (i = 7; i >= 0; i--)
 533         {
 534                 int cost;
 535
 536                 /* Get the location */
 537                 y = y1 + ddy_ddd[i];
 538                 x = x1 + ddx_ddd[i];
 539
 540                 /* Ignore locations off of edge */
 541                 if (!in_bounds2(y, x)) continue;
 542
 543                 /* Simply move to player */
 544                 if ((y == py) && (x == px)) return (FALSE);
 545
 546                 c_ptr = &cave[y][x];
 547
 548                 cost = c_ptr->cost;
 549
 550                 /* Monster cannot kill or pass walls */
 551                 if (!(((r_ptr->flags2 & RF2_PASS_WALL) && ((m_idx != p_ptr->riding) || p_ptr->pass_wall)) || (r_ptr->flags2 & RF2_KILL_WALL)))
 552                 {
 553                         if (cost == 0) continue;
 554                         if (!can_open_door && is_closed_door(c_ptr->feat)) continue;
 555                 }
 556
 557                 /* Hack -- for kill or pass wall monster.. */
 558                 if (cost == 0) cost = 998;
 559
 560                 if (now_cost < cost) continue;
 561
 562                 if (!projectable(y, x, py, px)) continue;
 563
 564                 /* Accept louder sounds */
 565                 if (best < cost) continue;
 566                 best = cost;
 567
 568                 (*yp) = y1 + ddy_ddd[i];
 569                 (*xp) = x1 + ddx_ddd[i];
 570         }
 571
 572         /* No legal move (?) */
 573         if (best == 999) return (FALSE);
 574
 575         /* Success */
 576         return (TRUE);
 577 }
 578
 579
 580 /*
 581  * Choose the "best" direction for "flowing"
 582  *
 583  * Note that ghosts and rock-eaters are never allowed to "flow",
 584  * since they should move directly towards the player.
 585  *
 586  * Prefer "non-diagonal" directions, but twiddle them a little
 587  * to angle slightly towards the player's actual location.
 588  *
 589  * Allow very perceptive monsters to track old "spoor" left by
 590  * previous locations occupied by the player.  This will tend
 591  * to have monsters end up either near the player or on a grid
 592  * recently occupied by the player (and left via "teleport").
 593  *
 594  * Note that if "smell" is turned on, all monsters get vicious.
 595  *
 596  * Also note that teleporting away from a location will cause
 597  * the monsters who were chasing you to converge on that location
 598  * as long as you are still near enough to "annoy" them without
 599  * being close enough to chase directly.  I have no idea what will
 600  * happen if you combine "smell" with low "aaf" values.
 601  */
 602 static bool get_moves_aux(int m_idx, int *yp, int *xp, bool no_flow)
 603 {
 604         int i, y, x, y1, x1, best;
 605
 606         cave_type *c_ptr;
 607         bool use_scent = FALSE;
 608
 609         monster_type *m_ptr = &m_list[m_idx];
 610         monster_race *r_ptr = &r_info[m_ptr->r_idx];
 611
 612         /* Can monster cast attack spell? */
 613         if (r_ptr->flags4 & (RF4_ATTACK_MASK) ||
 614             r_ptr->flags5 & (RF5_ATTACK_MASK) ||
 615             r_ptr->flags6 & (RF6_ATTACK_MASK))
 616         {
 617                 /* Can move spell castable grid? */
 618                 if (get_moves_aux2(m_idx, yp, xp)) return (TRUE);
 619         }
 620
 621         /* Monster can't flow */
 622         if (no_flow) return (FALSE);
 623
 624         /* Monster can go through rocks */
 625         if ((r_ptr->flags2 & RF2_PASS_WALL) && ((m_idx != p_ptr->riding) || (p_ptr->pass_wall))) return (FALSE);
 626         if (r_ptr->flags2 & RF2_KILL_WALL) return (FALSE);
 627         if (!cave_floor_bold(py, px) && (cave[py][px].feat != FEAT_TREES)) return (FALSE);
 628
 629         /* Monster location */
 630         y1 = m_ptr->fy;
 631         x1 = m_ptr->fx;
 632
 633         /* Hack -- Player can see us, run towards him */
 634         if (player_has_los_bold(y1, x1)) return (FALSE);
 635
 636         /* Monster grid */
 637         c_ptr = &cave[y1][x1];
 638
 639         /* If we can hear noises, advance towards them */
 640         if (c_ptr->cost)
 641         {
 642                 best = 999;
 643         }
 644
 645         /* Otherwise, try to follow a scent trail */
 646         else if (c_ptr->when)
 647         {
 648                 /* Too old smell */
 649                 if (cave[py][px].when - c_ptr->when > 127) return (FALSE);
 650
 651                 use_scent = TRUE;
 652                 best = 0;
 653         }
 654
 655         /* Otherwise, advance blindly */
 656         else
 657         {
 658                 return (FALSE);
 659         }
 660
 661         /* Check nearby grids, diagonals first */
 662         for (i = 7; i >= 0; i--)
 663         {
 664                 /* Get the location */
 665                 y = y1 + ddy_ddd[i];
 666                 x = x1 + ddx_ddd[i];
 667
 668                 /* Ignore locations off of edge */
 669                 if (!in_bounds2(y, x)) continue;
 670
 671                 c_ptr = &cave[y][x];
 672
 673                 /* We're following a scent trail */
 674                 if (use_scent)
 675                 {
 676                         int when = c_ptr->when;
 677
 678                         /* Accept younger scent */
 679                         if (best > when) continue;
 680                         best = when;
 681                 }
 682
 683                 /* We're using sound */
 684                 else
 685                 {
 686                         int cost;
 687
 688                         if (r_ptr->flags2 & (RF2_BASH_DOOR | RF2_OPEN_DOOR))
 689                                 cost = c_ptr->dist;
 690                         else cost = c_ptr->cost;
 691
 692                         /* Accept louder sounds */
 693                         if ((cost == 0) || (best < cost)) continue;
 694                         best = cost;
 695                 }
 696
 697                 /* Hack -- Save the "twiddled" location */
 698                 (*yp) = py + 16 * ddy_ddd[i];
 699                 (*xp) = px + 16 * ddx_ddd[i];
 700         }
 701
 702         /* No legal move (?) */
 703         if (best == 999 || best == 0) return (FALSE);
 704
 705         /* Success */
 706         return (TRUE);
 707 }
 708
 709
 710 /*
 711 * Provide a location to flee to, but give the player a wide berth.
 712 *
 713 * A monster may wish to flee to a location that is behind the player,
 714 * but instead of heading directly for it, the monster should "swerve"
 715 * around the player so that he has a smaller chance of getting hit.
 716 */
 717 static bool get_fear_moves_aux(int m_idx, int *yp, int *xp)
 718 {
 719         int y, x, y1, x1, fy, fx, gy = 0, gx = 0;
 720         int score = -1;
 721         int i;
 722
 723         monster_type *m_ptr = &m_list[m_idx];
 724
 725         /* Monster location */
 726         fy = m_ptr->fy;
 727         fx = m_ptr->fx;
 728
 729         /* Desired destination */
 730         y1 = fy - (*yp);
 731         x1 = fx - (*xp);
 732
 733         /* Check nearby grids, diagonals first */
 734         for (i = 7; i >= 0; i--)
 735         {
 736                 int dis, s;
 737
 738                 /* Get the location */
 739                 y = fy + ddy_ddd[i];
 740                 x = fx + ddx_ddd[i];
 741
 742                 /* Ignore locations off of edge */
 743                 if (!in_bounds2(y, x)) continue;
 744
 745                 /* Don't move toward player */
 746                 /* if (cave[y][x].dist < 3) continue; */ /* Hmm.. Need it? */
 747
 748                 /* Calculate distance of this grid from our destination */
 749                 dis = distance(y, x, y1, x1);
 750
 751                 /* Score this grid */
 752                 s = 5000 / (dis + 3) - 500 / (cave[y][x].dist + 1);
 753
 754                 /* No negative scores */
 755                 if (s < 0) s = 0;
 756
 757                 /* Ignore lower scores */
 758                 if (s < score) continue;
 759
 760                 /* Save the score and time */
 761                 score = s;
 762
 763                 /* Save the location */
 764                 gy = y;
 765                 gx = x;
 766         }
 767
 768         /* No legal move (?) */
 769         if (score == -1) return (FALSE);
 770
 771         /* Find deltas */
 772         (*yp) = fy - gy;
 773         (*xp) = fx - gx;
 774
 775         /* Success */
 776         return (TRUE);
 777 }
 778
 779 /*
 780  * Hack -- Precompute a bunch of calls to distance() in find_safety() and
 781  * find_hiding().
 782  *
 783  * The pair of arrays dist_offsets_y[n] and dist_offsets_x[n] contain the
 784  * offsets of all the locations with a distance of n from a central point,
 785  * with an offset of (0,0) indicating no more offsets at this distance.
 786  *
 787  * This is, of course, fairly unreadable, but it eliminates multiple loops
 788  * from the previous version.
 789  *
 790  * It is probably better to replace these arrays with code to compute
 791  * the relevant arrays, even if the storage is pre-allocated in hard
 792  * coded sizes.  At the very least, code should be included which is
 793  * able to generate and dump these arrays (ala "los()").  XXX XXX XXX
 794  *
 795  * Also, the storage needs could be halved by using bytes.  XXX XXX XXX
 796  *
 797  * These arrays could be combined into two big arrays, using sub-arrays
 798  * to hold the offsets and lengths of each portion of the sub-arrays, and
 799  * this could perhaps also be used somehow in the "look" code.  XXX XXX XXX
 800  */
 801
 802
 803 static sint d_off_y_0[] =
 804 { 0 };
 805
 806 static sint d_off_x_0[] =
 807 { 0 };
 808
 809
 810 static sint d_off_y_1[] =
 811 { -1, -1, -1, 0, 0, 1, 1, 1, 0 };
 812
 813 static sint d_off_x_1[] =
 814 { -1, 0, 1, -1, 1, -1, 0, 1, 0 };
 815
 816
 817 static sint d_off_y_2[] =
 818 { -1, -1, -2, -2, -2, 0, 0, 1, 1, 2, 2, 2, 0 };
 819
 820 static sint d_off_x_2[] =
 821 { -2, 2, -1, 0, 1, -2, 2, -2, 2, -1, 0, 1, 0 };
 822
 823
 824 static sint d_off_y_3[] =
 825 { -1, -1, -2, -2, -3, -3, -3, 0, 0, 1, 1, 2, 2,
 826   3, 3, 3, 0 };
 827
 828 static sint d_off_x_3[] =
 829 { -3, 3, -2, 2, -1, 0, 1, -3, 3, -3, 3, -2, 2,
 830   -1, 0, 1, 0 };
 831
 832
 833 static sint d_off_y_4[] =
 834 { -1, -1, -2, -2, -3, -3, -3, -3, -4, -4, -4, 0,
 835   0, 1, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 0 };
 836
 837 static sint d_off_x_4[] =
 838 { -4, 4, -3, 3, -2, -3, 2, 3, -1, 0, 1, -4, 4,
 839   -4, 4, -3, 3, -2, -3, 2, 3, -1, 0, 1, 0 };
 840
 841
 842 static sint d_off_y_5[] =
 843 { -1, -1, -2, -2, -3, -3, -4, -4, -4, -4, -5, -5,
 844   -5, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 4, 4, 5, 5,
 845   5, 0 };
 846
 847 static sint d_off_x_5[] =
 848 { -5, 5, -4, 4, -4, 4, -2, -3, 2, 3, -1, 0, 1,
 849   -5, 5, -5, 5, -4, 4, -4, 4, -2, -3, 2, 3, -1,
 850   0, 1, 0 };
 851
 852
 853 static sint d_off_y_6[] =
 854 { -1, -1, -2, -2, -3, -3, -4, -4, -5, -5, -5, -5,
 855   -6, -6, -6, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5,
 856   5, 5, 6, 6, 6, 0 };
 857
 858 static sint d_off_x_6[] =
 859 { -6, 6, -5, 5, -5, 5, -4, 4, -2, -3, 2, 3, -1,
 860   0, 1, -6, 6, -6, 6, -5, 5, -5, 5, -4, 4, -2,
 861   -3, 2, 3, -1, 0, 1, 0 };
 862
 863
 864 static sint d_off_y_7[] =
 865 { -1, -1, -2, -2, -3, -3, -4, -4, -5, -5, -5, -5,
 866   -6, -6, -6, -6, -7, -7, -7, 0, 0, 1, 1, 2, 2, 3,
 867   3, 4, 4, 5, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 0 };
 868
 869 static sint d_off_x_7[] =
 870 { -7, 7, -6, 6, -6, 6, -5, 5, -4, -5, 4, 5, -2,
 871   -3, 2, 3, -1, 0, 1, -7, 7, -7, 7, -6, 6, -6,
 872   6, -5, 5, -4, -5, 4, 5, -2, -3, 2, 3, -1, 0,
 873   1, 0 };
 874
 875
 876 static sint d_off_y_8[] =
 877 { -1, -1, -2, -2, -3, -3, -4, -4, -5, -5, -6, -6,
 878   -6, -6, -7, -7, -7, -7, -8, -8, -8, 0, 0, 1, 1,
 879   2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7,
 880   8, 8, 8, 0 };
 881
 882 static sint d_off_x_8[] =
 883 { -8, 8, -7, 7, -7, 7, -6, 6, -6, 6, -4, -5, 4,
 884   5, -2, -3, 2, 3, -1, 0, 1, -8, 8, -8, 8, -7,
 885   7, -7, 7, -6, 6, -6, 6, -4, -5, 4, 5, -2, -3,
 886   2, 3, -1, 0, 1, 0 };
 887
 888
 889 static sint d_off_y_9[] =
 890 { -1, -1, -2, -2, -3, -3, -4, -4, -5, -5, -6, -6,
 891   -7, -7, -7, -7, -8, -8, -8, -8, -9, -9, -9, 0,
 892   0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 7,
 893   7, 8, 8, 8, 8, 9, 9, 9, 0 };
 894
 895 static sint d_off_x_9[] =
 896 { -9, 9, -8, 8, -8, 8, -7, 7, -7, 7, -6, 6, -4,
 897   -5, 4, 5, -2, -3, 2, 3, -1, 0, 1, -9, 9, -9,
 898   9, -8, 8, -8, 8, -7, 7, -7, 7, -6, 6, -4, -5,
 899   4, 5, -2, -3, 2, 3, -1, 0, 1, 0 };
 900
 901
 902 static sint *dist_offsets_y[10] =
 903 {
 904         d_off_y_0, d_off_y_1, d_off_y_2, d_off_y_3, d_off_y_4,
 905         d_off_y_5, d_off_y_6, d_off_y_7, d_off_y_8, d_off_y_9
 906 };
 907
 908 static sint *dist_offsets_x[10] =
 909 {
 910         d_off_x_0, d_off_x_1, d_off_x_2, d_off_x_3, d_off_x_4,
 911         d_off_x_5, d_off_x_6, d_off_x_7, d_off_x_8, d_off_x_9
 912 };
 913
 914 /*
 915 * Choose a "safe" location near a monster for it to run toward.
 916 *
 917 * A location is "safe" if it can be reached quickly and the player
 918 * is not able to fire into it (it isn't a "clean shot").  So, this will
 919 * cause monsters to "duck" behind walls.  Hopefully, monsters will also
 920 * try to run towards corridor openings if they are in a room.
 921 *
 922 * This function may take lots of CPU time if lots of monsters are
 923 * fleeing.
 924 *
 925 * Return TRUE if a safe location is available.
 926 */
 927 static bool find_safety(int m_idx, int *yp, int *xp)
 928 {
 929         monster_type *m_ptr = &m_list[m_idx];
 930
 931         int fy = m_ptr->fy;
 932         int fx = m_ptr->fx;
 933
 934         int y, x, dy, dx, d, dis, i;
 935         int gy = 0, gx = 0, gdis = 0;
 936
 937         sint *y_offsets;
 938         sint *x_offsets;
 939
 940         cave_type *c_ptr;
 941
 942         /* Start with adjacent locations, spread further */
 943         for (d = 1; d < 10; d++)
 944         {
 945                 /* Get the lists of points with a distance d from (fx, fy) */
 946                 y_offsets = dist_offsets_y[d];
 947                 x_offsets = dist_offsets_x[d];
 948
 949                 /* Check the locations */
 950                 for (i = 0, dx = x_offsets[0], dy = y_offsets[0];
 951                      dx != 0 || dy != 0;
 952                      i++, dx = x_offsets[i], dy = y_offsets[i])
 953                 {
 954                         y = fy + dy;
 955                         x = fx + dx;
 956
 957                         /* Skip illegal locations */
 958                         if (!in_bounds(y, x)) continue;
 959
 960                         c_ptr = &cave[y][x];
 961
 962                         /* Skip locations in a wall */
 963                         if (!cave_floor_grid(c_ptr)) continue;
 964
 965                         /* Check for "availability" (if monsters can flow) */
 966                         if (!(m_ptr->mflag2 & MFLAG2_NOFLOW))
 967                         {
 968                                 /* Ignore grids very far from the player */
 969                                 if (c_ptr->dist == 0) continue;
 970
 971                                 /* Ignore too-distant grids */
 972                                 if (c_ptr->dist > cave[fy][fx].dist + 2 * d) continue;
 973                         }
 974
 975                         /* Check for absence of shot (more or less) */
 976                         if (!player_has_los_grid(c_ptr))
 977                         {
 978
 979                                 /* Calculate distance from player */
 980                                 dis = distance(y, x, py, px);
 981
 982                                 /* Remember if further than previous */
 983                                 if (dis > gdis)
 984                                 {
 985                                         gy = y;
 986                                         gx = x;
 987                                         gdis = dis;
 988                                 }
 989                         }
 990                 }
 991
 992                 /* Check for success */
 993                 if (gdis > 0)
 994                 {
 995                         /* Good location */
 996                         (*yp) = fy - gy;
 997                         (*xp) = fx - gx;
 998
 999                         /* Found safe place */
1000                         return (TRUE);
1001                 }
1002         }
1003
1004         /* No safe place */
1005         return (FALSE);
1006 }
1007
1008
1009 /*
1010  * Choose a good hiding place near a monster for it to run toward.
1011  *
1012  * Pack monsters will use this to "ambush" the player and lure him out
1013  * of corridors into open space so they can swarm him.
1014  *
1015  * Return TRUE if a good location is available.
1016  */
1017 static bool find_hiding(int m_idx, int *yp, int *xp)
1018 {
1019         monster_type *m_ptr = &m_list[m_idx];
1020
1021         int fy = m_ptr->fy;
1022         int fx = m_ptr->fx;
1023
1024         int y, x, dy, dx, d, dis, i;
1025         int gy = 0, gx = 0, gdis = 999;
1026
1027         sint *y_offsets, *x_offsets;
1028
1029         cave_type *c_ptr;
1030
1031         /* Start with adjacent locations, spread further */
1032         for (d = 1; d < 10; d++)
1033         {
1034                 /* Get the lists of points with a distance d from (fx, fy) */
1035                 y_offsets = dist_offsets_y[d];
1036                 x_offsets = dist_offsets_x[d];
1037
1038                 /* Check the locations */
1039                 for (i = 0, dx = x_offsets[0], dy = y_offsets[0];
1040                      dx != 0 || dy != 0;
1041                      i++, dx = x_offsets[i], dy = y_offsets[i])
1042                 {
1043                         y = fy + dy;
1044                         x = fx + dx;
1045
1046                         /* Skip illegal locations */
1047                         if (!in_bounds(y, x)) continue;
1048
1049                         c_ptr = &cave[y][x];
1050
1051                         /* Skip occupied locations */
1052                         if (!cave_empty_grid(c_ptr)) continue;
1053
1054                         /* Check for hidden, available grid */
1055                         if (!player_has_los_grid(c_ptr) && clean_shot(fy, fx, y, x, FALSE))
1056                         {
1057                                 /* Calculate distance from player */
1058                                 dis = distance(y, x, py, px);
1059
1060                                 /* Remember if closer than previous */
1061                                 if (dis < gdis && dis >= 2)
1062                                 {
1063                                         gy = y;
1064                                         gx = x;
1065                                         gdis = dis;
1066                                 }
1067                         }
1068                 }
1069
1070                 /* Check for success */
1071                 if (gdis < 999)
1072                 {
1073                         /* Good location */
1074                         (*yp) = fy - gy;
1075                         (*xp) = fx - gx;
1076
1077                         /* Found good place */
1078                         return (TRUE);
1079                 }
1080         }
1081
1082         /* No good place */
1083         return (FALSE);
1084 }
1085
1086
1087 /*
1088  * Choose "logical" directions for monster movement
1089  */
1090 static bool get_moves(int m_idx, int *mm)
1091 {
1092         monster_type *m_ptr = &m_list[m_idx];
1093         monster_race *r_ptr = &r_info[m_ptr->r_idx];
1094         int          y, ay, x, ax;
1095         int          move_val = 0;
1096         int          y2 = py;
1097         int          x2 = px;
1098         bool         done = FALSE;
1099         bool         will_run = mon_will_run(m_idx);
1100         cave_type       *c_ptr;
1101         bool         no_flow = ((m_ptr->mflag2 & MFLAG2_NOFLOW) && (cave[m_ptr->fy][m_ptr->fx].cost > 2));
1102         bool         can_pass_wall;
1103
1104         /* Flow towards the player */
1105         (void)get_moves_aux(m_idx, &y2, &x2, no_flow);
1106
1107         can_pass_wall = ((r_ptr->flags2 & RF2_PASS_WALL) && ((m_idx != p_ptr->riding) || (p_ptr->pass_wall)));
1108
1109         /* Extract the "pseudo-direction" */
1110         y = m_ptr->fy - y2;
1111         x = m_ptr->fx - x2;
1112
1113         /* Counter attack to an enemy monster */
1114         if (!will_run && m_ptr->target_y)
1115         {
1116                 int t_m_idx = cave[m_ptr->target_y][m_ptr->target_x].m_idx;
1117
1118                 /* The monster must be an enemy, and in LOS */
1119                 if (t_m_idx &&
1120                     are_enemies(m_ptr, &m_list[t_m_idx]) &&
1121                     los(m_ptr->fy, m_ptr->fx, m_ptr->target_y, m_ptr->target_x))
1122                 {
1123                         y = m_ptr->target_y;
1124                         x = m_ptr->target_x;
1125                         done = TRUE;
1126                 }
1127         }
1128
1129         if (!done && !will_run && is_hostile(m_ptr) &&
1130             (r_ptr->flags1 & RF1_FRIENDS) &&
1131             (los(m_ptr->fy, m_ptr->fx, py, px) ||
1132             (cave[m_ptr->fy][m_ptr->fx].dist < MAX_SIGHT / 2)))
1133         {
1134         /*
1135          * Animal packs try to get the player out of corridors
1136          * (...unless they can move through walls -- TY)
1137          */
1138                 if ((r_ptr->flags3 & RF3_ANIMAL) && !can_pass_wall &&
1139                          !(r_ptr->flags2 & RF2_KILL_WALL))
1140                 {
1141                         int i, room = 0;
1142
1143                         /* Count room grids next to player */
1144                         for (i = 0; i < 8; i++)
1145                         {
1146                                 int x = px + ddx_ddd[i];
1147                                 int y = py + ddy_ddd[i];
1148
1149                                 cave_type *c_ptr;
1150
1151                                 if (!in_bounds2(y, x)) continue;
1152
1153                                 c_ptr = &cave[y][x];
1154
1155                                 /* Check grid */
1156                                 if (((cave_floor_grid(c_ptr)) || ((c_ptr->feat & 0x60) == 0x60)) &&
1157                                          monster_can_cross_terrain(c_ptr->feat, r_ptr))
1158                                 {
1159                                         /* One more room grid */
1160                                         room++;
1161                                 }
1162                         }
1163                         if (cave[py][px].info & CAVE_ROOM) room -= 2;
1164                         if (!r_ptr->flags4 && !r_ptr->flags5 && !r_ptr->flags6) room -= 2;
1165
1166                         /* Not in a room and strong player */
1167                         if (room < (8 * (p_ptr->chp + p_ptr->csp)) /
1168                             (p_ptr->mhp + p_ptr->msp))
1169                         {
1170                                 /* Find hiding place */
1171                                 if (find_hiding(m_idx, &y, &x)) done = TRUE;
1172                         }
1173                 }
1174
1175                 /* Monster groups try to surround the player */
1176                 if (!done && (cave[m_ptr->fy][m_ptr->fx].dist < 3))
1177                 {
1178                         int i;
1179
1180                         /* Find an empty square near the player to fill */
1181                         for (i = 0; i < 8; i++)
1182                         {
1183                                 /* Pick squares near player (semi-randomly) */
1184                                 y2 = py + ddy_ddd[(m_idx + i) & 7];
1185                                 x2 = px + ddx_ddd[(m_idx + i) & 7];
1186
1187                                 /* Already there? */
1188                                 if ((m_ptr->fy == y2) && (m_ptr->fx == x2))
1189                                 {
1190                                         /* Attack the player */
1191                                         y2 = py;
1192                                         x2 = px;
1193
1194                                         break;
1195                                 }
1196
1197                                 if (!in_bounds2(y2, x2)) continue;
1198
1199                                 /* Ignore filled grids */
1200                                 c_ptr = &cave[y2][x2];
1201                                 if (!cave_empty_grid(c_ptr)) continue;
1202
1203                                 /* Try to fill this hole */
1204                                 break;
1205                         }
1206
1207                         /* Extract the new "pseudo-direction" */
1208                         y = m_ptr->fy - y2;
1209                         x = m_ptr->fx - x2;
1210
1211                         /* Done */
1212                         done = TRUE;
1213                 }
1214         }
1215
1216         /* Apply fear if possible and necessary */
1217         if (is_pet(m_ptr) && will_run)
1218         {
1219                 /* XXX XXX Not very "smart" */
1220                 y = (-y), x = (-x);
1221         }
1222         else
1223         {
1224                 if (!done && will_run)
1225                 {
1226                         int tmp_x = (-x);
1227                         int tmp_y = (-y);
1228
1229                         /* Try to find safe place */
1230                         if (find_safety(m_idx, &y, &x))
1231                         {
1232                                 /* Attempt to avoid the player */
1233                                 if (!no_flow)
1234                                 {
1235                                         /* Adjust movement */
1236                                         if (get_fear_moves_aux(m_idx, &y, &x)) done = TRUE;
1237                                 }
1238                         }
1239
1240                         if (!done)
1241                         {
1242                                 /* This is not a very "smart" method XXX XXX */
1243                                 y = tmp_y;
1244                                 x = tmp_x;
1245                         }
1246                 }
1247         }
1248
1249
1250         /* Check for no move */
1251         if (!x && !y) return (FALSE);
1252
1253
1254         /* Extract the "absolute distances" */
1255         ax = ABS(x);
1256         ay = ABS(y);
1257
1258         /* Do something weird */
1259         if (y < 0) move_val += 8;
1260         if (x > 0) move_val += 4;
1261
1262         /* Prevent the diamond maneuvre */
1263         if (ay > (ax << 1))
1264         {
1265                 move_val++;
1266                 move_val++;
1267         }
1268         else if (ax > (ay << 1))
1269         {
1270                 move_val++;
1271         }
1272
1273         /* Extract some directions */
1274         switch (move_val)
1275         {
1276         case 0:
1277                 mm[0] = 9;
1278                 if (ay > ax)
1279                 {
1280                         mm[1] = 8;
1281                         mm[2] = 6;
1282                         mm[3] = 7;
1283                         mm[4] = 3;
1284                 }
1285                 else
1286                 {
1287                         mm[1] = 6;
1288                         mm[2] = 8;
1289                         mm[3] = 3;
1290                         mm[4] = 7;
1291                 }
1292                 break;
1293         case 1:
1294         case 9:
1295                 mm[0] = 6;
1296                 if (y < 0)
1297                 {
1298                         mm[1] = 3;
1299                         mm[2] = 9;
1300                         mm[3] = 2;
1301                         mm[4] = 8;
1302                 }
1303                 else
1304                 {
1305                         mm[1] = 9;
1306                         mm[2] = 3;
1307                         mm[3] = 8;
1308                         mm[4] = 2;
1309                 }
1310                 break;
1311         case 2:
1312         case 6:
1313                 mm[0] = 8;
1314                 if (x < 0)
1315                 {
1316                         mm[1] = 9;
1317                         mm[2] = 7;
1318                         mm[3] = 6;
1319                         mm[4] = 4;
1320                 }
1321                 else
1322                 {
1323                         mm[1] = 7;
1324                         mm[2] = 9;
1325                         mm[3] = 4;
1326                         mm[4] = 6;
1327                 }
1328                 break;
1329         case 4:
1330                 mm[0] = 7;
1331                 if (ay > ax)
1332                 {
1333                         mm[1] = 8;
1334                         mm[2] = 4;
1335                         mm[3] = 9;
1336                         mm[4] = 1;
1337                 }
1338                 else
1339                 {
1340                         mm[1] = 4;
1341                         mm[2] = 8;
1342                         mm[3] = 1;
1343                         mm[4] = 9;
1344                 }
1345                 break;
1346         case 5:
1347         case 13:
1348                 mm[0] = 4;
1349                 if (y < 0)
1350                 {
1351                         mm[1] = 1;
1352                         mm[2] = 7;
1353                         mm[3] = 2;
1354                         mm[4] = 8;
1355                 }
1356                 else
1357                 {
1358                         mm[1] = 7;
1359                         mm[2] = 1;
1360                         mm[3] = 8;
1361                         mm[4] = 2;
1362                 }
1363                 break;
1364         case 8:
1365                 mm[0] = 3;
1366                 if (ay > ax)
1367                 {
1368                         mm[1] = 2;
1369                         mm[2] = 6;
1370                         mm[3] = 1;
1371                         mm[4] = 9;
1372                 }
1373                 else
1374                 {
1375                         mm[1] = 6;
1376                         mm[2] = 2;
1377                         mm[3] = 9;
1378                         mm[4] = 1;
1379                 }
1380                 break;
1381         case 10:
1382         case 14:
1383                 mm[0] = 2;
1384                 if (x < 0)
1385                 {
1386                         mm[1] = 3;
1387                         mm[2] = 1;
1388                         mm[3] = 6;
1389                         mm[4] = 4;
1390                 }
1391                 else
1392                 {
1393                         mm[1] = 1;
1394                         mm[2] = 3;
1395                         mm[3] = 4;
1396                         mm[4] = 6;
1397                 }
1398                 break;
1399         case 12:
1400                 mm[0] = 1;
1401                 if (ay > ax)
1402                 {
1403                         mm[1] = 2;
1404                         mm[2] = 4;
1405                         mm[3] = 3;
1406                         mm[4] = 7;
1407                 }
1408                 else
1409                 {
1410                         mm[1] = 4;
1411                         mm[2] = 2;
1412                         mm[3] = 7;
1413                         mm[4] = 3;
1414                 }
1415                 break;
1416         }
1417
1418         /* Wants to move... */
1419         return (TRUE);
1420 }
1421
1422
1423 static int check_hit2(int power, int level, int ac, int stun)
1424 {
1425         int i, k;
1426
1427         /* Percentile dice */
1428         k = randint0(100);
1429
1430         if (stun && one_in_(2)) return FALSE;
1431
1432         /* Hack -- Always miss or hit */
1433         if (k < 10) return (k < 5);
1434
1435         /* Calculate the "attack quality" */
1436         i = (power + (level * 3));
1437
1438         /* Power and Level compete against Armor */
1439         if ((i > 0) && (randint1(i) > ((ac * 3) / 4))) return (TRUE);
1440
1441         /* Assume miss */
1442         return (FALSE);
1443 }
1444
1445
1446 /* Monster attacks monster */
1447 static bool monst_attack_monst(int m_idx, int t_idx)
1448 {
1449         monster_type    *m_ptr = &m_list[m_idx];
1450         monster_type    *t_ptr = &m_list[t_idx];
1451
1452         monster_race    *r_ptr = &r_info[m_ptr->r_idx];
1453         monster_race    *tr_ptr = &r_info[t_ptr->r_idx];
1454
1455         int             ap_cnt;
1456         int             ac, rlev, pt;
1457         char            m_name[80], t_name[80];
1458         char            temp[80];
1459         bool            blinked, heal_effect;
1460         bool            explode = FALSE, touched = FALSE, fear = FALSE;
1461         int             y_saver = t_ptr->fy;
1462         int             x_saver = t_ptr->fx;
1463
1464         bool see_m = m_ptr->ml;
1465         bool see_t = t_ptr->ml;
1466         bool see_either = see_m || see_t;
1467
1468         /* Can the player be aware of this attack? */
1469         bool known = (m_ptr->cdis <= MAX_SIGHT) || (t_ptr->cdis <= MAX_SIGHT);
1470         bool do_silly_attack = (one_in_(2) && p_ptr->image);
1471
1472         /* Cannot attack self */
1473         if (m_idx == t_idx) return FALSE;
1474
1475         /* Not allowed to attack */
1476         if (r_ptr->flags1 & RF1_NEVER_BLOW) return FALSE;
1477
1478         if (d_info[dungeon_type].flags1 & DF1_NO_MELEE) return (FALSE);
1479
1480         /* Wake it up */
1481         t_ptr->csleep = 0;
1482
1483         /* Total armor */
1484         ac = tr_ptr->ac;
1485
1486         /* Extract the effective monster level */
1487         rlev = ((r_ptr->level >= 1) ? r_ptr->level : 1);
1488
1489         /* Get the monster name (or "it") */
1490         monster_desc(m_name, m_ptr, 0);
1491
1492         /* Get the monster name (or "it") */
1493         monster_desc(t_name, t_ptr, 0);
1494
1495         /* Assume no blink */
1496         blinked = FALSE;
1497
1498         if (!see_either && known)
1499         {
1500                 mon_fight = TRUE;
1501         }
1502
1503         if (p_ptr->riding && (m_idx == p_ptr->riding)) disturb(1, 0);
1504
1505         /* Scan through all four blows */
1506         for (ap_cnt = 0; ap_cnt < 4; ap_cnt++)
1507         {
1508                 bool obvious = FALSE;
1509
1510                 int power = 0;
1511                 int damage = 0;
1512
1513                 cptr act = NULL;
1514
1515                 /* Extract the attack infomation */
1516                 int effect = r_ptr->blow[ap_cnt].effect;
1517                 int method = r_ptr->blow[ap_cnt].method;
1518                 int d_dice = r_ptr->blow[ap_cnt].d_dice;
1519                 int d_side = r_ptr->blow[ap_cnt].d_side;
1520
1521                 if (!m_ptr->r_idx) break;
1522
1523                 /* Stop attacking if the target dies! */
1524                 if (t_ptr->fx != x_saver || t_ptr->fy != y_saver)
1525                         break;
1526
1527                 /* Hack -- no more attacks */
1528                 if (!method) break;
1529
1530                 if (blinked) /* Stop! */
1531                 {
1532                         /* break; */
1533                 }
1534
1535                 if (method == RBM_SHOOT) continue;
1536
1537                 /* Extract the attack "power" */
1538                 power = mbe_info[effect].power;
1539
1540                 /* Monster hits */
1541                 if (!effect || check_hit2(power, rlev, ac, m_ptr->stunned))
1542                 {
1543                         /* Describe the attack method */
1544                         switch (method)
1545                         {
1546                         case RBM_HIT:
1547                                 {
1548 #ifdef JP
1549 act = "%s¤ò²¥¤Ã¤¿¡£";
1550 #else
1551                                         act = "hits %s.";
1552 #endif
1553
1554                                         touched = TRUE;
1555                                         break;
1556                                 }
1557
1558                         case RBM_TOUCH:
1559                                 {
1560 #ifdef JP
1561 act = "%s¤ò¿¨¤Ã¤¿¡£";
1562 #else
1563                                         act = "touches %s.";
1564 #endif
1565
1566                                         touched = TRUE;
1567                                         break;
1568                                 }
1569
1570                         case RBM_PUNCH:
1571                                 {
1572 #ifdef JP
1573 act = "%s¤ò¥Ñ¥ó¥Á¤·¤¿¡£";
1574 #else
1575                                         act = "punches %s.";
1576 #endif
1577
1578                                         touched = TRUE;
1579                                         break;
1580                                 }
1581
1582                         case RBM_KICK:
1583                                 {
1584 #ifdef JP
1585 act = "%s¤ò½³¤Ã¤¿¡£";
1586 #else
1587                                         act = "kicks %s.";
1588 #endif
1589
1590                                         touched = TRUE;
1591                                         break;
1592                                 }
1593
1594                         case RBM_CLAW:
1595                                 {
1596 #ifdef JP
1597 act = "%s¤ò¤Ò¤Ã¤«¤¤¤¿¡£";
1598 #else
1599                                         act = "claws %s.";
1600 #endif
1601
1602                                         touched = TRUE;
1603                                         break;
1604                                 }
1605
1606                         case RBM_BITE:
1607                                 {
1608 #ifdef JP
1609 act = "%s¤ò³ú¤ó¤À¡£";
1610 #else
1611                                         act = "bites %s.";
1612 #endif
1613
1614                                         touched = TRUE;
1615                                         break;
1616                                 }
1617
1618                         case RBM_STING:
1619                                 {
1620 #ifdef JP
1621 act = "%s¤ò»É¤·¤¿¡£";
1622 #else
1623                                         act = "stings %s.";
1624 #endif
1625
1626                                         touched = TRUE;
1627                                         break;
1628                                 }
1629
1630                         case RBM_SLASH:
1631                                 {
1632 #ifdef JP
1633 act = "%s¤ò»Â¤Ã¤¿¡£";
1634 #else
1635                                         act = "slashes %s.";
1636 #endif
1637
1638                                         break;
1639                                 }
1640
1641                         case RBM_BUTT:
1642                                 {
1643 #ifdef JP
1644 act = "%s¤ò³Ñ¤ÇÆÍ¤¤¤¿¡£";
1645 #else
1646                                         act = "butts %s.";
1647 #endif
1648
1649                                         touched = TRUE;
1650                                         break;
1651                                 }
1652
1653                         case RBM_CRUSH:
1654                                 {
1655 #ifdef JP
1656 act = "%s¤ËÂÎÅö¤ê¤·¤¿¡£";
1657 #else
1658                                         act = "crushes %s.";
1659 #endif
1660
1661                                         touched = TRUE;
1662                                         break;
1663                                 }
1664
1665                         case RBM_ENGULF:
1666                                 {
1667 #ifdef JP
1668 act = "%s¤ò°û¤ß¹þ¤ó¤À¡£";
1669 #else
1670                                         act = "engulfs %s.";
1671 #endif
1672
1673                                         touched = TRUE;
1674                                         break;
1675                                 }
1676
1677                         case RBM_CHARGE:
1678                                 {
1679 #ifdef JP
1680 act = "%s¤ËÀÁµá½ñ¤ò¤è¤³¤·¤¿¡£";
1681 #else
1682                                         act = "charges %s.";
1683 #endif
1684
1685                                         touched = TRUE;
1686                                         break;
1687                                 }
1688
1689                         case RBM_CRAWL:
1690                                 {
1691 #ifdef JP
1692 act = "%s¤ÎÂÎ¤Î¾å¤òÇç¤¤²ó¤Ã¤¿¡£";
1693 #else
1694                                         act = "crawls on %s.";
1695 #endif
1696
1697                                         touched = TRUE;
1698                                         break;
1699                                 }
1700
1701                         case RBM_DROOL:
1702                                 {
1703 #ifdef JP
1704 act = "%s¤Ë¤è¤À¤ì¤ò¤¿¤é¤·¤¿¡£";
1705 #else
1706                                         act = "drools on %s.";
1707 #endif
1708
1709                                         touched = FALSE;
1710                                         break;
1711                                 }
1712
1713                         case RBM_SPIT:
1714                                 {
1715 #ifdef JP
1716 act = "%s¤ËÂÃ¤òÅÇ¤¤¤¿¡£";
1717 #else
1718                                         act = "spits on %s.";
1719 #endif
1720
1721                                         touched = FALSE;
1722                                         break;
1723                                 }
1724
1725                         case RBM_EXPLODE:
1726                                 {
1727                                         if (see_either) disturb(1, 0);
1728 #ifdef JP
1729 act = "ÇúÈ¯¤·¤¿¡£";
1730 #else
1731                                         act = "explodes.";
1732 #endif
1733
1734                                         explode = TRUE;
1735                                         touched = FALSE;
1736                                         break;
1737                                 }
1738
1739                         case RBM_GAZE:
1740                                 {
1741 #ifdef JP
1742 act = "%s¤ò¤Ë¤é¤ó¤À¡£";
1743 #else
1744                                         act = "gazes at %s.";
1745 #endif
1746
1747                                         touched = FALSE;
1748                                         break;
1749                                 }
1750
1751                         case RBM_WAIL:
1752                                 {
1753 #ifdef JP
1754 act = "%s¤Ëµã¤¤Ä¤¤¤¿¡£";
1755 #else
1756                                         act = "wails at %s.";
1757 #endif
1758
1759                                         touched = FALSE;
1760                                         break;
1761                                 }
1762
1763                         case RBM_SPORE:
1764                                 {
1765 #ifdef JP
1766 act = "%s¤ËË¦»Ò¤òÈô¤Ð¤·¤¿¡£";
1767 #else
1768                                         act = "releases spores at %s.";
1769 #endif
1770
1771                                         touched = FALSE;
1772                                         break;
1773                                 }
1774
1775                         case RBM_XXX4:
1776                                 {
1777 #ifdef JP
1778 act = "%s¤ËXXX4¤òÈô¤Ð¤·¤¿¡£";
1779 #else
1780                                         act = "projects XXX4's at %s.";
1781 #endif
1782
1783                                         touched = FALSE;
1784                                         break;
1785                                 }
1786
1787                         case RBM_BEG:
1788                                 {
1789 #ifdef JP
1790 act = "%s¤Ë¶â¤ò¤»¤¬¤ó¤À¡£";
1791 #else
1792                                         act = "begs %s for money.";
1793 #endif
1794
1795                                         touched = FALSE;
1796                                         break;
1797                                 }
1798
1799                         case RBM_INSULT:
1800                                 {
1801 #ifdef JP
1802 act = "%s¤òÉî¿«¤·¤¿¡£";
1803 #else
1804                                         act = "insults %s.";
1805 #endif
1806
1807                                         touched = FALSE;
1808                                         break;
1809                                 }
1810
1811                         case RBM_MOAN:
1812                                 {
1813 #ifdef JP
1814 act = "%s¤Ë¤à¤«¤Ã¤Æ¤¦¤á¤¤¤¿¡£";
1815 #else
1816                                         act = "moans at %s.";
1817 #endif
1818
1819                                         touched = FALSE;
1820                                         break;
1821                                 }
1822
1823                         case RBM_SHOW:
1824                                 {
1825 #ifdef JP
1826 act = "%s¤Ë¤à¤«¤Ã¤Æ²Î¤Ã¤¿¡£";
1827 #else
1828                                         act = "sings to %s.";
1829 #endif
1830
1831                                         touched = FALSE;
1832                                         break;
1833                                 }
1834                         }
1835
1836                         /* Message */
1837                         if (act && see_either)
1838                         {
1839                                 if (do_silly_attack)
1840                                 {
1841                                         act = silly_attacks[randint0(MAX_SILLY_ATTACK)];
1842                                 }
1843                                 strfmt(temp, act, t_name);
1844 #ifdef JP
1845                                 msg_format("%^s¤Ï%s", m_name, temp);
1846 #else
1847                                 msg_format("%^s %s", m_name, temp);
1848 #endif
1849
1850                         }
1851
1852                         /* Hack -- assume all attacks are obvious */
1853                         obvious = TRUE;
1854
1855                         /* Roll out the damage */
1856                         damage = damroll(d_dice, d_side);
1857
1858                         /* Assume no healing effect */
1859                         heal_effect = FALSE;
1860
1861                         pt = GF_MISSILE;
1862
1863                         /* Apply appropriate damage */
1864                         switch (effect)
1865                         {
1866                         case 0:
1867                                 {
1868                                         damage = 0;
1869                                         pt = 0;
1870                                         break;
1871                                 }
1872
1873                         case RBE_SUPERHURT:
1874                                 {
1875                                         if ((randint1(rlev*2+250) > (ac+200)) || one_in_(13)) {
1876                                                 int tmp_damage = damage-(damage*((ac < 150) ? ac : 150)/250);
1877                                                 damage = MAX(damage, tmp_damage*2);
1878                                                 break;
1879                                         }
1880                                 }
1881                         case RBE_HURT:
1882                                 {
1883                                         damage -= (damage * ((ac < 150) ? ac : 150) / 250);
1884                                         break;
1885                                 }
1886
1887                         case RBE_POISON:
1888                         case RBE_DISEASE:
1889                                 {
1890                                         pt = GF_POIS;
1891                                         break;
1892                                 }
1893
1894                         case RBE_UN_BONUS:
1895                         case RBE_UN_POWER:
1896                                 {
1897                                         pt = GF_DISENCHANT;
1898                                         break;
1899                                 }
1900
1901                         case RBE_EAT_FOOD:
1902                         case RBE_EAT_LITE:
1903                         case RBE_DR_MANA:
1904                                 {
1905                                         pt = damage = 0;
1906                                         break;
1907                                 }
1908
1909                         case RBE_EAT_ITEM:
1910                         case RBE_EAT_GOLD:
1911                                 {
1912                                         pt = damage = 0;
1913                                         if (one_in_(2)) blinked = TRUE;
1914                                         break;
1915                                 }
1916
1917                         case RBE_ACID:
1918                                 {
1919                                         pt = GF_ACID;
1920                                         break;
1921                                 }
1922
1923                         case RBE_ELEC:
1924                                 {
1925                                         pt = GF_ELEC;
1926                                         break;
1927                                 }
1928
1929                         case RBE_FIRE:
1930                                 {
1931                                         pt = GF_FIRE;
1932                                         break;
1933                                 }
1934
1935                         case RBE_COLD:
1936                                 {
1937                                         pt = GF_COLD;
1938                                         break;
1939                                 }
1940
1941                         case RBE_BLIND:
1942                                 {
1943                                         break;
1944                                 }
1945
1946                         case RBE_CONFUSE:
1947                                 {
1948                                         pt = GF_CONFUSION;
1949                                         break;
1950                                 }
1951
1952                         case RBE_TERRIFY:
1953                                 {
1954                                         pt = GF_TURN_ALL;
1955                                         break;
1956                                 }
1957
1958                         case RBE_PARALYZE:
1959                                 {
1960                                         pt = GF_OLD_SLEEP; /* sort of close... */
1961                                         break;
1962                                 }
1963
1964                         case RBE_LOSE_STR:
1965                         case RBE_LOSE_INT:
1966                         case RBE_LOSE_WIS:
1967                         case RBE_LOSE_DEX:
1968                         case RBE_LOSE_CON:
1969                         case RBE_LOSE_CHR:
1970                         case RBE_LOSE_ALL:
1971                                 {
1972                                         break;
1973                                 }
1974                         case RBE_SHATTER:
1975                                 {
1976                                         damage -= (damage * ((ac < 150) ? ac : 150) / 250);
1977                                         if (damage > 23)
1978                                         {
1979                                                 earthquake(m_ptr->fy, m_ptr->fx, 8);
1980                                         }
1981                                         break;
1982                                 }
1983                         case RBE_EXP_10:
1984                         case RBE_EXP_20:
1985                         case RBE_EXP_40:
1986                         case RBE_EXP_80:
1987                                 {
1988                                         pt = GF_NETHER;
1989                                         break;
1990                                 }
1991                         case RBE_TIME:
1992                                 {
1993                                         pt = GF_TIME;
1994                                         break;
1995                                 }
1996                         case RBE_EXP_VAMP:
1997                                 {
1998                                         pt = GF_OLD_DRAIN;
1999                                         heal_effect = TRUE;
2000                                         break;
2001                                 }
2002
2003                         default:
2004                                 {
2005                                         pt = 0;
2006                                         break;
2007                                 }
2008                         }
2009
2010                         if (pt)
2011                         {
2012                                 /* Do damage if not exploding */
2013                                 if (!explode)
2014                                 {
2015                                         project(m_idx, 0, t_ptr->fy, t_ptr->fx,
2016                                                 (pt == GF_OLD_SLEEP ? r_ptr->level : damage), pt, PROJECT_KILL | PROJECT_STOP | PROJECT_MONSTER, -1);
2017                                 }
2018
2019                                 if (heal_effect)
2020                                 {
2021                                         if ((monster_living(tr_ptr)) && (damage > 2))
2022                                         {
2023                                                 bool did_heal = FALSE;
2024
2025                                                 if (m_ptr->hp < m_ptr->maxhp) did_heal = TRUE;
2026
2027                                                 /* Heal */
2028                                                 m_ptr->hp += damroll(4, damage / 6);
2029                                                 if (m_ptr->hp > m_ptr->maxhp) m_ptr->hp = m_ptr->maxhp;
2030
2031                                                 /* Redraw (later) if needed */
2032                                                 if (p_ptr->health_who == m_idx) p_ptr->redraw |= (PR_HEALTH);
2033                                                 if (p_ptr->riding == m_idx) p_ptr->redraw |= (PR_UHEALTH);
2034
2035                                                 /* Special message */
2036                                                 if (see_m && did_heal)
2037                                                 {
2038 #ifdef JP
2039 msg_format("%s¤ÏÂÎÎÏ¤ò²óÉü¤·¤¿¤è¤¦¤À¡£", m_name);
2040 #else
2041                                                         msg_format("%^s appears healthier.", m_name);
2042 #endif
2043
2044                                                 }
2045                                         }
2046                                 }
2047
2048                                 if (touched)
2049                                 {
2050                                         /* Aura fire */
2051                                         if ((tr_ptr->flags2 & RF2_AURA_FIRE) &&
2052                                                 !(r_ptr->flags3 & RF3_IM_FIRE) &&
2053                                                 !(r_ptr->flags3 & RF3_RES_ALL) && m_ptr->r_idx)
2054                                         {
2055                                                 if (see_either)
2056                                                 {
2057                                                         blinked = FALSE;
2058 #ifdef JP
2059 msg_format("%^s¤ÏÆÍÁ³Ç®¤¯¤Ê¤Ã¤¿¡ª", m_name);
2060 #else
2061                                                         msg_format("%^s is suddenly very hot!", m_name);
2062 #endif
2063
2064                                                         if (t_ptr->ml)
2065                                                                 tr_ptr->r_flags2 |= RF2_AURA_FIRE;
2066                                                 }
2067                                                 project(t_idx, 0, m_ptr->fy, m_ptr->fx,
2068                                                         damroll (1 + ((tr_ptr->level) / 26),
2069                                                         1 + ((tr_ptr->level) / 17)),
2070                                                         GF_FIRE, PROJECT_KILL | PROJECT_STOP | PROJECT_MONSTER, -1);
2071                                         }
2072
2073                                         /* Aura cold */
2074                                         if ((tr_ptr->flags3 & RF3_AURA_COLD) &&
2075                                                 !(r_ptr->flags3 & RF3_IM_COLD) &&
2076                                                 !(r_ptr->flags3 & RF3_RES_ALL) && m_ptr->r_idx)
2077                                         {
2078                                                 if (see_either)
2079                                                 {
2080                                                         blinked = FALSE;
2081 #ifdef JP
2082 msg_format("%^s¤ÏÆÍÁ³´¨¤¯¤Ê¤Ã¤¿¡ª", m_name);
2083 #else
2084                                                         msg_format("%^s is suddenly very cold!", m_name);
2085 #endif
2086
2087                                                         if (t_ptr->ml)
2088                                                                 tr_ptr->r_flags3 |= RF3_AURA_COLD;
2089                                                 }
2090                                                 project(t_idx, 0, m_ptr->fy, m_ptr->fx,
2091                                                         damroll (1 + ((tr_ptr->level) / 26),
2092                                                         1 + ((tr_ptr->level) / 17)),
2093                                                         GF_COLD, PROJECT_KILL | PROJECT_STOP | PROJECT_MONSTER, -1);
2094                                         }
2095
2096                                         /* Aura elec */
2097                                         if ((tr_ptr->flags2 & (RF2_AURA_ELEC)) &&
2098                                                 !(r_ptr->flags3 & (RF3_IM_ELEC)) &&
2099                                                 !(r_ptr->flags3 & RF3_RES_ALL) && m_ptr->r_idx)
2100                                         {
2101                                                 if (see_either)
2102                                                 {
2103                                                         blinked = FALSE;
2104 #ifdef JP
2105 msg_format("%^s¤ÏÅÅ·â¤ò¿©¤é¤Ã¤¿¡ª", m_name);
2106 #else
2107                                                         msg_format("%^s gets zapped!", m_name);
2108 #endif
2109
2110                                                         if (t_ptr->ml)
2111                                                                 tr_ptr->r_flags2 |= RF2_AURA_ELEC;
2112                                                 }
2113                                                 project(t_idx, 0, m_ptr->fy, m_ptr->fx,
2114                                                         damroll (1 + ((tr_ptr->level) / 26),
2115                                                         1 + ((tr_ptr->level) / 17)),
2116                                                         GF_ELEC, PROJECT_KILL | PROJECT_STOP | PROJECT_MONSTER, -1);
2117                                         }
2118
2119                                 }
2120                         }
2121                 }
2122
2123                 /* Monster missed player */
2124                 else
2125                 {
2126                         /* Analyze failed attacks */
2127                         switch (method)
2128                         {
2129                         case RBM_HIT:
2130                         case RBM_TOUCH:
2131                         case RBM_PUNCH:
2132                         case RBM_KICK:
2133                         case RBM_CLAW:
2134                         case RBM_BITE:
2135                         case RBM_STING:
2136                         case RBM_SLASH:
2137                         case RBM_BUTT:
2138                         case RBM_CRUSH:
2139                         case RBM_ENGULF:
2140                         case RBM_CHARGE:
2141                                 {
2142                                         /* Visible monsters */
2143                                         if (see_m)
2144                                         {
2145                                                 /* Message */
2146 #ifdef JP
2147 msg_format("%s¤Ï%^s¤Î¹¶·â¤ò¤«¤ï¤·¤¿¡£", t_name,m_name);
2148 #else
2149                                                 msg_format("%^s misses %s.", m_name, t_name);
2150 #endif
2151
2152                                         }
2153
2154                                         break;
2155                                 }
2156                         }
2157                 }
2158
2159
2160                 /* Analyze "visible" monsters only */
2161                 if (see_m && !do_silly_attack)
2162                 {
2163                         /* Count "obvious" attacks (and ones that cause damage) */
2164                         if (obvious || damage || (r_ptr->r_blows[ap_cnt] > 10))
2165                         {
2166                                 /* Count attacks of this type */
2167                                 if (r_ptr->r_blows[ap_cnt] < MAX_UCHAR)
2168                                 {
2169                                         r_ptr->r_blows[ap_cnt]++;
2170                                 }
2171                         }
2172                 }
2173         }
2174
2175         if (explode)
2176         {
2177                 sound(SOUND_EXPLODE);
2178
2179                 /* Cancel Invulnerability */
2180                 if (m_ptr->invulner) m_ptr->invulner = 0;
2181
2182 #ifdef JP
2183 mon_take_hit_mon(m_idx, m_ptr->hp + 1, &fear, "¤ÏÇúÈ¯¤·¤ÆÊ´¡¹¤Ë¤Ê¤Ã¤¿¡£", m_idx);
2184 #else
2185                 mon_take_hit_mon(m_idx, m_ptr->hp + 1, &fear, " explodes into tiny shreds.", m_idx);
2186 #endif
2187
2188
2189                 blinked = FALSE;
2190         }
2191
2192
2193         /* Blink away */
2194         if (blinked)
2195         {
2196                 if (see_m)
2197                 {
2198 #ifdef JP
2199 msg_print("Å¥ËÀ¤Ï¾Ð¤Ã¤ÆÆ¨¤²¤¿¡ª");
2200 #else
2201                         msg_print("The thief flees laughing!");
2202 #endif
2203
2204                 }
2205                 else if (known)
2206                 {
2207                         mon_fight = TRUE;
2208                 }
2209
2210                 teleport_away(m_idx, MAX_SIGHT * 2 + 5, FALSE);
2211         }
2212
2213         return TRUE;
2214 }
2215
2216
2217 /*
2218  * Process a monster
2219  *
2220  * The monster is known to be within 100 grids of the player
2221  *
2222  * In several cases, we directly update the monster lore
2223  *
2224  * Note that a monster is only allowed to "reproduce" if there
2225  * are a limited number of "reproducing" monsters on the current
2226  * level.  This should prevent the level from being "swamped" by
2227  * reproducing monsters.  It also allows a large mass of mice to
2228  * prevent a louse from multiplying, but this is a small price to
2229  * pay for a simple multiplication method.
2230  *
2231  * XXX Monster fear is slightly odd, in particular, monsters will
2232  * fixate on opening a door even if they cannot open it.  Actually,
2233  * the same thing happens to normal monsters when they hit a door
2234  *
2235  * XXX XXX XXX In addition, monsters which *cannot* open or bash
2236  * down a door will still stand there trying to open it...
2237  *
2238  * XXX Technically, need to check for monster in the way
2239  * combined with that monster being in a wall (or door?)
2240  *
2241  * A "direction" of "5" means "pick a random direction".
2242  */
2243 static void process_monster(int m_idx)
2244 {
2245         monster_type    *m_ptr = &m_list[m_idx];
2246         monster_race    *r_ptr = &r_info[m_ptr->r_idx];
2247         monster_race    *ap_r_ptr = &r_info[m_ptr->ap_r_idx];
2248
2249         int             i, d, oy, ox, ny, nx;
2250
2251         int             mm[8];
2252
2253         cave_type       *c_ptr;
2254
2255         monster_type    *y_ptr;
2256
2257         bool            do_turn;
2258         bool            do_move;
2259         bool            do_view;
2260
2261         bool            did_open_door;
2262         bool            did_bash_door;
2263         bool            did_take_item;
2264         bool            did_kill_item;
2265         bool            did_move_body;
2266         bool            did_pass_wall;
2267         bool            did_kill_wall;
2268         bool            gets_angry = FALSE;
2269         bool            can_pass_wall;
2270         bool            aware = TRUE;
2271
2272         bool            fear;
2273
2274         if ((m_idx == p_ptr->riding) && !(r_ptr->flags7 & RF7_RIDING))
2275         {
2276                 if (rakuba(0, TRUE))
2277                 {
2278 #ifdef JP
2279                         msg_print("ÃÏÌÌ¤ËÍî¤È¤µ¤ì¤¿¡£");
2280 #else
2281                         char m_name[80];
2282                         monster_desc(m_name, &m_list[p_ptr->riding], 0);
2283                         msg_format("You have fallen from %s.", m_name);
2284 #endif
2285                 }
2286         }
2287
2288         if ((m_ptr->mflag2 & MFLAG2_CHAMELEON) && one_in_(13) && !m_ptr->csleep)
2289         {
2290                 choose_new_monster(m_idx, FALSE, 0);
2291                 r_ptr = &r_info[m_ptr->r_idx];
2292         }
2293
2294         /* Players hidden in shadow are almost imperceptable. -LM- */
2295         if (p_ptr->special_defense & NINJA_S_STEALTH)
2296         {
2297                 int tmp = p_ptr->lev*6+(p_ptr->skill_stl+10)*4;
2298                 if (p_ptr->monlite) tmp /= 3;
2299                 if (p_ptr->cursed & TRC_AGGRAVATE) tmp /= 2;
2300                 if (r_ptr->level > (p_ptr->lev*p_ptr->lev/20+10)) tmp /= 3;
2301                 /* Low-level monsters will find it difficult to locate the player. */
2302                 if (randint0(tmp) > (r_ptr->level+20)) aware = FALSE;
2303         }
2304
2305         /* Quantum monsters are odd */
2306         if (r_ptr->flags2 & (RF2_QUANTUM))
2307         {
2308                 /* Sometimes skip move */
2309                 if (!randint0(2)) return;
2310
2311                 /* Sometimes die */
2312                 if (!randint0((m_idx % 100) + 10) && !(r_ptr->flags1 & RF1_QUESTOR))
2313                 {
2314                         bool sad = FALSE;
2315
2316                         if (is_pet(m_ptr) && !(m_ptr->ml))
2317                                 sad = TRUE;
2318
2319                         if (m_ptr->ml)
2320                         {
2321                                 char m_name[80];
2322
2323                                 /* Acquire the monster name */
2324                                 monster_desc(m_name, m_ptr, 0);
2325
2326                                 /* Oops */
2327 #ifdef JP
2328 msg_format("%s¤Ï¾Ã¤¨µî¤Ã¤¿¡ª", m_name);
2329 #else
2330                                 msg_format("%^s disappears!", m_name);
2331 #endif
2332
2333                         }
2334
2335                         /* Generate treasure, etc */
2336                         monster_death(m_idx, FALSE);
2337
2338                         /* Delete the monster */
2339                         delete_monster_idx(m_idx);
2340
2341                         if (sad)
2342                         {
2343 #ifdef JP
2344 msg_print("¾¯¤·¤Î´ÖÈá¤·¤¤µ¤Ê¬¤Ë¤Ê¤Ã¤¿¡£");
2345 #else
2346                                 msg_print("You feel sad for a moment.");
2347 #endif
2348
2349                         }
2350
2351                         return;
2352                 }
2353         }
2354
2355         if (m_ptr->r_idx == MON_SHURYUUDAN)
2356 #ifdef JP
2357                 mon_take_hit_mon(m_idx, 1, &fear, "¤ÏÇúÈ¯¤·¤ÆÊ´¡¹¤Ë¤Ê¤Ã¤¿¡£", m_idx);
2358 #else
2359                 mon_take_hit_mon(m_idx, 1, &fear, " explodes into tiny shreds.", m_idx);
2360 #endif
2361
2362         if ((is_pet(m_ptr) || is_friendly(m_ptr)) && ((r_ptr->flags1 & RF1_UNIQUE) || (r_ptr->flags7 & RF7_UNIQUE_7)) && !p_ptr->inside_battle)
2363         {
2364                 static int riding_pinch = 0;
2365
2366                 if (m_ptr->hp < m_ptr->maxhp/3)
2367                 {
2368                         char m_name[80];
2369                         monster_desc(m_name, m_ptr, 0);
2370
2371                         if (m_idx == p_ptr->riding && riding_pinch < 2)
2372                         {
2373 #ifdef JP
2374                                 msg_format("%s¤Ï½ý¤ÎÄË¤µ¤ÎÍ¾¤ê¤¢¤Ê¤¿¤ÎÂ«Çû¤«¤éÆ¨¤ì¤è¤¦¤È¤·¤Æ¤¤¤ë¡£", m_name);
2375 #else
2376                                 msg_format("%^s seems to be in so much pain, and trying to escape from your restriction.", m_name);
2377 #endif
2378                                 riding_pinch++;
2379                                 disturb(1, 0);
2380                         }
2381                         else
2382                         {
2383                                 if (m_idx == p_ptr->riding)
2384                                 {
2385 #ifdef JP
2386                                         msg_format("%s¤Ï¤¢¤Ê¤¿¤ÎÂ«Çû¤«¤éÃ¦½Ð¤·¤¿¡£", m_name);
2387 #else
2388                                         msg_format("%^s succeeded to escape from your restriction!", m_name);
2389 #endif
2390                                         if (rakuba(-1, FALSE))
2391                                         {
2392 #ifdef JP
2393                                                 msg_print("ÃÏÌÌ¤ËÍî¤È¤µ¤ì¤¿¡£");
2394 #else
2395                                                 msg_print("You have fallen from riding pet.");
2396 #endif
2397                                         }
2398                                 }
2399
2400                                 if (m_ptr->ml)
2401                                 {
2402                                         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))
2403                                         {
2404 #ifdef JP
2405                                                 msg_format("%^s¡Ö¥Ô¥ó¥Á¤À¡ªÂàµÑ¤µ¤»¤Æ¤â¤é¤¦¡ª¡×", m_name);
2406 #else
2407                                                 msg_format("%^s says 'It is the pinch! I will retreat'.", m_name);
2408 #endif
2409                                         }
2410 #ifdef JP
2411                                         msg_format("%^s¤¬¥Æ¥ì¥Ý¡¼¥È¡¦¥ì¥Ù¥ë¤Î´¬Êª¤òÆÉ¤ó¤À¡£", m_name);
2412                                         msg_format("%^s¤¬¾Ã¤¨µî¤Ã¤¿¡£", m_name);
2413 #else
2414                                         msg_format("%^s read a scroll of teleport level.", m_name);
2415                                         msg_format("%^s disappears.", m_name);
2416 #endif
2417                                 }
2418
2419                                 if (m_idx == p_ptr->riding && rakuba(-1, FALSE))
2420                                 {
2421 #ifdef JP
2422                                         msg_print("ÃÏÌÌ¤ËÍî¤È¤µ¤ì¤¿¡£");
2423 #else
2424                                         msg_print("You have fallen from riding pet.");
2425 #endif
2426                                 }
2427
2428                                 delete_monster_idx(m_idx);
2429
2430                                 return;
2431                         }
2432                 }
2433                 else
2434                 {
2435                         /* Reset the counter */
2436                         if (m_idx == p_ptr->riding) riding_pinch = 0;
2437                 }
2438         }
2439
2440         /* Handle "sleep" - Still sleeping */
2441         if (m_ptr->csleep) return;
2442
2443         /* Handle "stun" */
2444         if (m_ptr->stunned)
2445         {
2446                 /* Sometimes skip move */
2447                 if (one_in_(2)) return;
2448         }
2449
2450         if (p_ptr->riding == m_idx)
2451         {
2452                 p_ptr->update |= (PU_BONUS);
2453         }
2454
2455         /* No one wants to be your friend if you're aggravating */
2456         if (is_friendly(m_ptr) && (p_ptr->cursed & TRC_AGGRAVATE))
2457                 gets_angry = TRUE;
2458
2459         /* Paranoia... no pet uniques outside wizard mode -- TY */
2460         if (is_pet(m_ptr) &&
2461             ((((r_ptr->flags1 & RF1_UNIQUE) || (r_ptr->flags7 & RF7_UNIQUE_7)) &&
2462               ((p_ptr->align > 9 && (r_ptr->flags3 & RF3_EVIL)) ||
2463               (p_ptr->align < -9 && (r_ptr->flags3 & RF3_GOOD))))
2464              || (r_ptr->flags3 & RF3_RES_ALL)))
2465         {
2466                         gets_angry = TRUE;
2467         }
2468
2469         if (p_ptr->inside_battle) gets_angry = FALSE;
2470
2471         if (gets_angry)
2472         {
2473                 char m_name[80];
2474                 monster_desc(m_name, m_ptr, 0);
2475 #ifdef JP
2476 msg_format("%^s¤ÏÆÍÁ³Å¨¤Ë¤Þ¤ï¤Ã¤¿¡ª", m_name);
2477 #else
2478                 msg_format("%^s suddenly becomes hostile!", m_name);
2479 #endif
2480
2481                 set_hostile(m_ptr);
2482         }
2483
2484         /* Get the origin */
2485         oy = m_ptr->fy;
2486         ox = m_ptr->fx;
2487
2488
2489         /* Attempt to "multiply" if able and allowed */
2490         if ((r_ptr->flags2 & RF2_MULTIPLY) && (num_repro < MAX_REPRO))
2491         {
2492                 int k, y, x;
2493
2494                 /* Count the adjacent monsters */
2495                 for (k = 0, y = oy - 1; y <= oy + 1; y++)
2496                 {
2497                         for (x = ox - 1; x <= ox + 1; x++)
2498                         {
2499                                 /* Ignore locations off of edge */
2500                                 if (!in_bounds2(y, x)) continue;
2501
2502                                 if (cave[y][x].m_idx) k++;
2503                         }
2504                 }
2505
2506                 /* Hack -- multiply slower in crowded areas */
2507                 if ((k < 4) && (!k || !randint0(k * MON_MULT_ADJ)))
2508                 {
2509                         /* Try to multiply */
2510                         if (multiply_monster(m_idx, FALSE, (is_pet(m_ptr) ? PM_FORCE_PET : 0)))
2511                         {
2512                                 /* Take note if visible */
2513                                 if (m_ptr->ml)
2514                                 {
2515                                         r_ptr->r_flags2 |= (RF2_MULTIPLY);
2516                                 }
2517
2518                                 /* Multiplying takes energy */
2519                                 return;
2520                         }
2521                 }
2522         }
2523
2524
2525         if (!p_ptr->inside_battle)
2526         {
2527                 /* Hack! "Cyber" monster makes noise... */
2528                 if (m_ptr->ap_r_idx == MON_CYBER &&
2529                     one_in_(CYBERNOISE) &&
2530                     !m_ptr->ml && (m_ptr->cdis <= MAX_SIGHT))
2531                 {
2532                         if (disturb_minor) disturb(FALSE, FALSE);
2533 #ifdef JP
2534 msg_print("½Å¸ü¤ÊÂ²»¤¬Ê¹¤³¤¨¤¿¡£");
2535 #else
2536                         msg_print("You hear heavy steps.");
2537 #endif
2538
2539                 }
2540
2541                 /* Some monsters can speak */
2542                 if ((ap_r_ptr->flags2 & RF2_CAN_SPEAK) && aware &&
2543                         one_in_(SPEAK_CHANCE) &&
2544                         player_has_los_bold(oy, ox))
2545                 {
2546                         char m_name[80];
2547                         char monmessage[1024];
2548                         cptr filename;
2549
2550                         /* Acquire the monster name/poss */
2551                         if (m_ptr->ml)
2552                                 monster_desc(m_name, m_ptr, 0);
2553                         else
2554 #ifdef JP
2555 strcpy(m_name, "¤½¤ì");
2556 #else
2557                                 strcpy(m_name, "It");
2558 #endif
2559
2560
2561                         /* Select the file for monster quotes */
2562                         if (m_ptr->monfear)
2563 #ifdef JP
2564 filename = "monfear_j.txt";
2565 #else
2566                                 filename = "monfear.txt";
2567 #endif
2568
2569                         else if (is_pet(m_ptr))
2570 #ifdef JP
2571 filename = "monpet_j.txt";
2572 #else
2573                                 filename = "monpet.txt";
2574 #endif
2575
2576                         else if (is_friendly(m_ptr))
2577 #ifdef JP
2578 filename = "monfrien_j.txt";
2579 #else
2580                                 filename = "monfrien.txt";
2581 #endif
2582
2583                         else
2584 #ifdef JP
2585                                 filename = "monspeak_j.txt";
2586 #else
2587                                 filename = "monspeak.txt";
2588 #endif
2589
2590
2591                         /* Get the monster line */
2592                         if (get_rnd_line(filename, m_ptr->ap_r_idx, monmessage) == 0)
2593                         {
2594                                 /* Say something */
2595 #ifdef JP
2596 msg_format("%^s%s", m_name, monmessage);
2597 #else
2598                                 msg_format("%^s %s", m_name, monmessage);
2599 #endif
2600
2601                         }
2602                 }
2603         }
2604
2605         /* Try to cast spell occasionally */
2606         if (r_ptr->freq_spell && randint1(100) <= r_ptr->freq_spell)
2607         {
2608                 bool counterattack = FALSE;
2609
2610                 /* Give priority to counter attack? */
2611                 if (m_ptr->target_y)
2612                 {
2613                         int t_m_idx = cave[m_ptr->target_y][m_ptr->target_x].m_idx;
2614
2615                         /* The monster must be an enemy, and projectable */
2616                         if (t_m_idx &&
2617                             are_enemies(m_ptr, &m_list[t_m_idx]) &&
2618                             projectable(m_ptr->fy, m_ptr->fx, m_ptr->target_y, m_ptr->target_x))
2619                         {
2620                                 counterattack = TRUE;
2621                         }
2622                 }
2623
2624                 if (!counterattack)
2625                 {
2626                         /* Attempt to cast a spell */
2627                         if (aware && make_attack_spell(m_idx)) return;
2628
2629                         /*
2630                          * Attempt to cast a spell at an enemy other than the player
2631                          * (may slow the game a smidgeon, but I haven't noticed.)
2632                          */
2633                         if (monst_spell_monst(m_idx)) return;
2634                 }
2635                 else
2636                 {
2637                         /* Attempt to do counter attack at first */
2638                         if (monst_spell_monst(m_idx)) return;
2639
2640                         if (aware && make_attack_spell(m_idx)) return;
2641                 }
2642         }
2643
2644         can_pass_wall = ((r_ptr->flags2 & RF2_PASS_WALL) && ((m_idx != p_ptr->riding) || (p_ptr->pass_wall)));
2645
2646         /* Hack -- Assume no movement */
2647         mm[0] = mm[1] = mm[2] = mm[3] = 0;
2648         mm[4] = mm[5] = mm[6] = mm[7] = 0;
2649
2650
2651         /* Confused -- 100% random */
2652         if (m_ptr->confused || !aware)
2653         {
2654                 /* Try four "random" directions */
2655                 mm[0] = mm[1] = mm[2] = mm[3] = 5;
2656         }
2657
2658         /* 75% random movement */
2659         else if ((r_ptr->flags1 & RF1_RAND_50) &&
2660                                 (r_ptr->flags1 & RF1_RAND_25) &&
2661                  (randint0(100) < 75))
2662         {
2663                 /* Memorize flags */
2664                 if (m_ptr->ml) r_ptr->r_flags1 |= (RF1_RAND_50);
2665                 if (m_ptr->ml) r_ptr->r_flags1 |= (RF1_RAND_25);
2666
2667                 /* Try four "random" directions */
2668                 mm[0] = mm[1] = mm[2] = mm[3] = 5;
2669         }
2670
2671         /* 50% random movement */
2672         else if ((r_ptr->flags1 & RF1_RAND_50) &&
2673                                 (randint0(100) < 50))
2674         {
2675                 /* Memorize flags */
2676                 if (m_ptr->ml) r_ptr->r_flags1 |= (RF1_RAND_50);
2677
2678                 /* Try four "random" directions */
2679                 mm[0] = mm[1] = mm[2] = mm[3] = 5;
2680         }
2681
2682         /* 25% random movement */
2683         else if ((r_ptr->flags1 & RF1_RAND_25) &&
2684                                 (randint0(100) < 25))
2685         {
2686                 /* Memorize flags */
2687                 if (m_ptr->ml) r_ptr->r_flags1 |= RF1_RAND_25;
2688
2689                 /* Try four "random" directions */
2690                 mm[0] = mm[1] = mm[2] = mm[3] = 5;
2691         }
2692
2693         /* Can't reach player - find something else to hit */
2694         else if ((r_ptr->flags1 & RF1_NEVER_MOVE) && (m_ptr->cdis > 1))
2695         {
2696                 /* Try four "random" directions */
2697                 mm[0] = mm[1] = mm[2] = mm[3] = 5;
2698
2699                 /* Look for an enemy */
2700 #if 0  /* Hack - Too slow.  Mimic pits are horrible with this on. */
2701                 get_enemy_dir(m_idx, mm);
2702 #endif /* 0 */
2703         }
2704
2705         /* Pets will follow the player */
2706         else if (is_pet(m_ptr))
2707         {
2708                 /* Are we trying to avoid the player? */
2709                 bool avoid = ((p_ptr->pet_follow_distance < 0) &&
2710                                                   (m_ptr->cdis <= (0 - p_ptr->pet_follow_distance)));
2711
2712                 /* Do we want to find the player? */
2713                 bool lonely = (!avoid && (m_ptr->cdis > p_ptr->pet_follow_distance));
2714
2715                 /* Should we find the player if we can't find a monster? */
2716                 bool distant = (m_ptr->cdis > PET_SEEK_DIST);
2717
2718                 /* by default, move randomly */
2719                 mm[0] = mm[1] = mm[2] = mm[3] = 5;
2720
2721                 /* Look for an enemy */
2722                 if (!get_enemy_dir(m_idx, mm))
2723                 {
2724                         /* Find the player if necessary */
2725                         if (avoid || lonely || distant)
2726                         {
2727                                 /* Remember the leash length */
2728                                 int dis = p_ptr->pet_follow_distance;
2729
2730                                 /* Hack -- adjust follow distance temporarily */
2731                                 if (p_ptr->pet_follow_distance > PET_SEEK_DIST)
2732                                 {
2733                                         p_ptr->pet_follow_distance = PET_SEEK_DIST;
2734                                 }
2735
2736                                 /* Find the player */
2737                                 get_moves(m_idx, mm);
2738
2739                                 /* Restore the leash */
2740                                 p_ptr->pet_follow_distance = dis;
2741                         }
2742                 }
2743         }
2744
2745         /* Friendly monster movement */
2746         else if (!is_hostile(m_ptr))
2747         {
2748                 /* by default, move randomly */
2749                 mm[0] = mm[1] = mm[2] = mm[3] = 5;
2750
2751                 /* Look for an enemy */
2752                 get_enemy_dir(m_idx, mm);
2753         }
2754         /* Normal movement */
2755         else
2756         {
2757                 /* Logical moves, may do nothing */
2758                 if (!get_moves(m_idx, mm)) return;
2759         }
2760
2761         /* Assume nothing */
2762         do_turn = FALSE;
2763         do_move = FALSE;
2764         do_view = FALSE;
2765
2766         /* Assume nothing */
2767         did_open_door = FALSE;
2768         did_bash_door = FALSE;
2769         did_take_item = FALSE;
2770         did_kill_item = FALSE;
2771         did_move_body = FALSE;
2772         did_pass_wall = FALSE;
2773         did_kill_wall = FALSE;
2774
2775
2776         /* Take a zero-terminated array of "directions" */
2777         for (i = 0; mm[i]; i++)
2778         {
2779                 /* Get the direction */
2780                 d = mm[i];
2781
2782                 /* Hack -- allow "randomized" motion */
2783                 if (d == 5) d = ddd[randint0(8)];
2784
2785                 /* Get the destination */
2786                 ny = oy + ddy[d];
2787                 nx = ox + ddx[d];
2788
2789                 /* Ignore locations off of edge */
2790                 if (!in_bounds2(ny, nx)) continue;
2791
2792                 /* Access that cave grid */
2793                 c_ptr = &cave[ny][nx];
2794
2795                 /* Access that cave grid's contents */
2796                 y_ptr = &m_list[c_ptr->m_idx];
2797
2798                 /* Floor is open? */
2799                 if (cave_floor_grid(c_ptr))
2800                 {
2801                         /* Go ahead and move */
2802                         do_move = TRUE;
2803                 }
2804
2805                 /* Hack -- player 'in' wall */
2806                 else if ((ny == py) && (nx == px))
2807                 {
2808                         do_move = TRUE;
2809                 }
2810
2811                 else if (c_ptr->m_idx)
2812                 {
2813                         /* Possibly a monster to attack */
2814                         do_move = TRUE;
2815                 }
2816
2817                 /* Permanent wall */
2818                 else if ((c_ptr->feat >= FEAT_PERM_EXTRA) &&
2819                         (c_ptr->feat <= FEAT_PERM_SOLID))
2820                 {
2821                         do_move = FALSE;
2822                 }
2823
2824                 /* Hack -- semi-transparent terrains are no obstacle */
2825                 else if (c_ptr->feat == FEAT_TREES)
2826                 {
2827                         do_move = TRUE;
2828                 }
2829
2830                 /* Hack -- semi-transparent terrains are no obstacle */
2831                 else if ((c_ptr->feat == FEAT_MOUNTAIN) && ((r_ptr->flags2 & RF2_KILL_WALL) || (!dun_level && ((r_ptr->flags7 & RF7_CAN_FLY) || (r_ptr->flags8 & RF8_WILD_MOUNTAIN)))))
2832                 {
2833                         do_move = TRUE;
2834                 }
2835
2836
2837                 /* Monster moves through walls (and doors) */
2838                 else if (can_pass_wall)
2839                 {
2840                         /* Pass through walls/doors/rubble */
2841                         do_move = TRUE;
2842
2843                         /* Monster went through a wall */
2844                         did_pass_wall = TRUE;
2845                 }
2846
2847                 /* Monster destroys walls (and doors) */
2848                 else if ((r_ptr->flags2 & RF2_KILL_WALL) && (m_idx != p_ptr->riding))
2849                 {
2850                         /* Eat through walls/doors/rubble */
2851                         do_move = TRUE;
2852
2853                         /* Monster destroyed a wall */
2854                         did_kill_wall = TRUE;
2855
2856                         if (one_in_(GRINDNOISE))
2857                         {
2858 #ifdef JP
2859 msg_print("¥®¥·¥®¥·¤¤¤¦²»¤¬Ê¹¤³¤¨¤ë¡£");
2860 #else
2861                                 msg_print("There is a grinding sound.");
2862 #endif
2863
2864                         }
2865
2866                         /* Forget the wall */
2867                         c_ptr->info &= ~(CAVE_MARK);
2868
2869                         /* Notice */
2870                         cave_set_feat(ny, nx, floor_type[randint0(100)]);
2871
2872                         /* Note changes to viewable region */
2873                         if (player_has_los_bold(ny, nx)) do_view = TRUE;
2874                 }
2875
2876                 /* Handle doors and secret doors */
2877                 else if (is_closed_door(c_ptr->feat))
2878                 {
2879                         bool may_bash = TRUE;
2880
2881                         /* Assume no move allowed */
2882                         do_move = FALSE;
2883
2884                         /* Creature can open doors. */
2885                         if ((r_ptr->flags2 & RF2_OPEN_DOOR) &&
2886                                  (!is_pet(m_ptr) || (p_ptr->pet_extra_flags & PF_OPEN_DOORS)))
2887                         {
2888                                 /* Closed doors */
2889                                 if (c_ptr->feat == FEAT_DOOR_HEAD)
2890                                 {
2891                                         /* The door is open */
2892                                         did_open_door = TRUE;
2893
2894                                         /* Do not bash the door */
2895                                         may_bash = FALSE;
2896
2897                                         /* Assume no move allowed */
2898                                         do_move = TRUE;
2899                                 }
2900
2901                                 /* Locked doors (not jammed) */
2902                                 else if (c_ptr->feat < FEAT_DOOR_HEAD + 0x08)
2903                                 {
2904                                         int k;
2905
2906                                         /* Door power */
2907                                         k = ((c_ptr->feat - FEAT_DOOR_HEAD) & 0x07);
2908
2909                                         /* Try to unlock it XXX XXX XXX */
2910                                         if (randint0(m_ptr->hp / 10) > k)
2911                                         {
2912                                                 /* Unlock the door */
2913                                                 cave_set_feat(ny, nx, FEAT_DOOR_HEAD + 0x00);
2914
2915                                                 /* Do not bash the door */
2916                                                 may_bash = FALSE;
2917                                         }
2918                                 }
2919                         }
2920
2921                         /* Stuck doors -- attempt to bash them down if allowed */
2922                         if (may_bash && (r_ptr->flags2 & RF2_BASH_DOOR) &&
2923                                 (!is_pet(m_ptr) || (p_ptr->pet_extra_flags & PF_OPEN_DOORS)))
2924                         {
2925                                 int k;
2926
2927                                 /* Door power */
2928                                 k = ((c_ptr->feat - FEAT_DOOR_HEAD) & 0x07);
2929
2930                                 /* Attempt to Bash XXX XXX XXX */
2931                                 if (randint0(m_ptr->hp / 10) > k)
2932                                 {
2933                                         /* Message */
2934 #ifdef JP
2935 msg_print("¥É¥¢¤òÃ¡¤³«¤±¤ë²»¤¬¤·¤¿¡ª");
2936 #else
2937                                         msg_print("You hear a door burst open!");
2938 #endif
2939
2940
2941                                         /* Disturb (sometimes) */
2942                                         if (disturb_minor) disturb(0, 0);
2943
2944                                         /* The door was bashed open */
2945                                         did_bash_door = TRUE;
2946
2947                                         /* Hack -- fall into doorway */
2948                                         do_move = TRUE;
2949                                 }
2950                         }
2951
2952
2953                         /* Deal with doors in the way */
2954                         if (did_open_door || did_bash_door)
2955                         {
2956                                 /* Break down the door */
2957                                 if (did_bash_door && (randint0(100) < 50))
2958                                 {
2959                                         cave_set_feat(ny, nx, FEAT_BROKEN);
2960                                 }
2961
2962                                 /* Open the door */
2963                                 else
2964                                 {
2965                                         cave_set_feat(ny, nx, FEAT_OPEN);
2966                                 }
2967
2968                                 /* Handle viewable doors */
2969                                 if (player_has_los_bold(ny, nx)) do_view = TRUE;
2970                         }
2971                 }
2972
2973                 /* Hack -- check for Glyph of Warding */
2974                 if (do_move && is_glyph_grid(c_ptr) &&
2975                     !((r_ptr->flags1 & RF1_NEVER_BLOW) && (py == ny) && (px == nx)))
2976                 {
2977                         /* Assume no move allowed */
2978                         do_move = FALSE;
2979
2980                         /* Break the ward */
2981                         if (!is_pet(m_ptr) && (randint1(BREAK_GLYPH) < r_ptr->level))
2982                         {
2983                                 /* Describe observable breakage */
2984                                 if (c_ptr->info & CAVE_MARK)
2985                                 {
2986 #ifdef JP
2987 msg_print("¼é¤ê¤Î¥ë¡¼¥ó¤¬²õ¤ì¤¿¡ª");
2988 #else
2989                                         msg_print("The rune of protection is broken!");
2990 #endif
2991
2992                                 }
2993
2994                                 /* Forget the rune */
2995                                 c_ptr->info &= ~(CAVE_MARK);
2996
2997                                 /* Break the rune */
2998                                 c_ptr->info &= ~(CAVE_OBJECT);
2999                                 c_ptr->mimic = 0;
3000
3001                                 /* Allow movement */
3002                                 do_move = TRUE;
3003
3004                                 /* Notice */
3005                                 note_spot(ny, nx);
3006                         }
3007                 }
3008                 else if (do_move && is_explosive_rune_grid(c_ptr) &&
3009                          !((r_ptr->flags1 & RF1_NEVER_BLOW) && (py == ny) && (px == nx)))
3010                 {
3011                         /* Assume no move allowed */
3012                         do_move = FALSE;
3013
3014                         /* Break the ward */
3015                         if (!is_pet(m_ptr))
3016                         {
3017                                 /* Break the ward */
3018                                 if (randint1(BREAK_MINOR_GLYPH) > r_ptr->level)
3019                                 {
3020                                         /* Describe observable breakage */
3021                                         if (c_ptr->info & CAVE_MARK)
3022                                         {
3023 #ifdef JP
3024 msg_print("¥ë¡¼¥ó¤¬ÇúÈ¯¤·¤¿¡ª");
3025 #else
3026                                                 msg_print("The rune explodes!");
3027 #endif
3028
3029                                                 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);
3030                                         }
3031                                 }
3032                                 else
3033                                 {
3034 #ifdef JP
3035 msg_print("ÇúÈ¯¤Î¥ë¡¼¥ó¤Ï²ò½ü¤µ¤ì¤¿¡£");
3036 #else
3037                                         msg_print("An explosive rune was disarmed.");
3038 #endif
3039                                 }
3040
3041                                 /* Forget the rune */
3042                                 c_ptr->info &= ~(CAVE_MARK);
3043
3044                                 /* Break the rune */
3045                                 c_ptr->info &= ~(CAVE_OBJECT);
3046                                 c_ptr->mimic = 0;
3047
3048                                 note_spot(ny, nx);
3049                                 lite_spot(ny, nx);
3050
3051                                 if (!m_ptr->r_idx) return;
3052                                 /* Allow movement */
3053                                 do_move = TRUE;
3054                         }
3055                 }
3056                 if (do_move && (ny == py) && (nx == px) && (d_info[dungeon_type].flags1 & DF1_NO_MELEE))
3057                 {
3058                         do_move = FALSE;
3059                 }
3060
3061                 /* Some monsters never attack */
3062                 if (do_move && (ny == py) && (nx == px) &&
3063                         (r_ptr->flags1 & RF1_NEVER_BLOW))
3064                 {
3065                         /* Hack -- memorize lack of attacks */
3066                         if (m_ptr->ml) r_ptr->r_flags1 |= (RF1_NEVER_BLOW);
3067
3068                         /* Do not move */
3069                         do_move = FALSE;
3070                 }
3071
3072                 /* The player is in the way.  Attack him. */
3073                 if (do_move && (ny == py) && (nx == px))
3074                 {
3075                         if (!p_ptr->riding || one_in_(2))
3076                         {
3077                                 /* Do the attack */
3078                                 (void)make_attack_normal(m_idx);
3079
3080                                 /* Do not move */
3081                                 do_move = FALSE;
3082
3083                                 /* Took a turn */
3084                                 do_turn = TRUE;
3085                         }
3086                 }
3087
3088                 if ((c_ptr->feat >= FEAT_PATTERN_START) &&
3089                         (c_ptr->feat <= FEAT_PATTERN_XTRA2) &&
3090                         !do_turn && !(r_ptr->flags7 & RF7_CAN_FLY))
3091                 {
3092                         do_move = FALSE;
3093                 }
3094
3095
3096                 /* A monster is in the way */
3097                 if (do_move && c_ptr->m_idx)
3098                 {
3099                         monster_race *z_ptr = &r_info[y_ptr->r_idx];
3100                         monster_type *m2_ptr = &m_list[c_ptr->m_idx];
3101
3102                         /* Assume no movement */
3103                         do_move = FALSE;
3104
3105                         /* Attack 'enemies' */
3106                         if (((r_ptr->flags2 & (RF2_KILL_BODY)) &&
3107                                   (r_ptr->mexp * r_ptr->level > z_ptr->mexp * z_ptr->level) &&
3108                                   (cave_floor_grid(c_ptr)) &&
3109                              (c_ptr->m_idx != p_ptr->riding)) ||
3110                                  are_enemies(m_ptr, m2_ptr) || m_ptr->confused)
3111                         {
3112                                 do_move = FALSE;
3113
3114                                 if (r_ptr->flags2 & RF2_KILL_BODY) r_ptr->r_flags2 |= (RF2_KILL_BODY);
3115
3116                                 /* attack */
3117                                 if ((m2_ptr->r_idx) && (m2_ptr->hp >= 0))
3118                                 {
3119                                         if (monst_attack_monst(m_idx, cave[ny][nx].m_idx))
3120                                         return;
3121                                 }
3122                         }
3123
3124                         /* Push past weaker monsters (unless leaving a wall) */
3125                         else if ((r_ptr->flags2 & RF2_MOVE_BODY) &&
3126                                 (r_ptr->mexp > z_ptr->mexp) && cave_floor_grid(c_ptr) &&
3127                                 (cave_floor_grid(&cave[m_ptr->fy][m_ptr->fx])) &&
3128                                  (c_ptr->m_idx != p_ptr->riding))
3129                         {
3130                                 /* Allow movement */
3131                                 do_move = TRUE;
3132
3133                                 /* Monster pushed past another monster */
3134                                 did_move_body = TRUE;
3135
3136                                 /* XXX XXX XXX Message */
3137                         }
3138                 }
3139
3140                 /*
3141                  * Check if monster can cross terrain
3142                  * This is checked after the normal attacks
3143                  * to allow monsters to attack an enemy,
3144                  * even if it can't enter the terrain.
3145                  */
3146                 if (do_move && !monster_can_cross_terrain(c_ptr->feat, r_ptr))
3147                 {
3148                         /* Assume no move allowed */
3149                         do_move = FALSE;
3150                 }
3151
3152                 /* Some monsters never move */
3153                 if (do_move && (r_ptr->flags1 & RF1_NEVER_MOVE))
3154                 {
3155                         /* Hack -- memorize lack of attacks */
3156                         if (m_ptr->ml) r_ptr->r_flags1 |= (RF1_NEVER_MOVE);
3157
3158                         /* Do not move */
3159                         do_move = FALSE;
3160                 }
3161
3162                 if (m_idx == p_ptr->riding)
3163                 {
3164                         if (!p_ptr->riding_ryoute && !(m_list[p_ptr->riding].monfear)) do_move = FALSE;
3165                 }
3166
3167                 /* Creature has been allowed move */
3168                 if (do_move)
3169                 {
3170                         s16b this_o_idx, next_o_idx;
3171
3172                         /* Take a turn */
3173                         do_turn = TRUE;
3174
3175                         /* Hack -- Update the old location */
3176                         cave[oy][ox].m_idx = c_ptr->m_idx;
3177
3178                         if (cave[ny][nx].feat == FEAT_TREES)
3179                         {
3180                                 if (r_ptr->flags2 & RF2_KILL_WALL)
3181                                 {
3182                                         cave_set_feat(ny, nx, FEAT_GRASS);
3183
3184                                 }
3185                                 if (!(r_ptr->flags7 & RF7_CAN_FLY) && !(r_ptr->flags8 & RF8_WILD_WOOD))
3186                                 {
3187                                         m_ptr->energy_need += ENERGY_NEED();
3188                                 }
3189                         }
3190
3191                         /* Mega-Hack -- move the old monster, if any */
3192                         if (c_ptr->m_idx)
3193                         {
3194                                 /* Move the old monster */
3195                                 y_ptr->fy = oy;
3196                                 y_ptr->fx = ox;
3197
3198                                 /* Update the old monster */
3199                                 update_mon(c_ptr->m_idx, TRUE);
3200
3201                                 /* Wake up the moved monster */
3202                                 m_list[c_ptr->m_idx].csleep = 0;
3203                         }
3204
3205                         /* Hack -- Update the new location */
3206                         c_ptr->m_idx = m_idx;
3207
3208                         /* Move the monster */
3209                         m_ptr->fy = ny;
3210                         m_ptr->fx = nx;
3211
3212                         /* Update the monster */
3213                         update_mon(m_idx, TRUE);
3214
3215                         if (p_ptr->riding == m_idx)
3216                         {
3217                                 py = ny;
3218                                 px = nx;
3219                         }
3220
3221                         /* Redraw the old grid */
3222                         lite_spot(oy, ox);
3223
3224                         /* Redraw the new grid */
3225                         lite_spot(ny, nx);
3226
3227                         if (p_ptr->riding == m_idx)
3228                         {
3229                                 verify_panel();
3230
3231                                 /* Update stuff */
3232                                 p_ptr->update |= (PU_VIEW | PU_LITE | PU_FLOW);
3233
3234                                 /* Update the monsters */
3235                                 p_ptr->update |= (PU_DISTANCE);
3236
3237                                 /* Update sub-windows */
3238                                 p_ptr->window |= (PW_OVERHEAD | PW_DUNGEON);
3239                         }
3240
3241                         /* Possible disturb */
3242                         if (m_ptr->ml &&
3243                             (disturb_move ||
3244                              (disturb_near && (m_ptr->mflag & MFLAG_VIEW)) ||
3245                              (disturb_high && ap_r_ptr->r_tkills && ap_r_ptr->level >= p_ptr->lev)))
3246                         {
3247                                 /* Disturb */
3248                                 if (is_hostile(m_ptr))
3249                                         disturb(0, 0);
3250                         }
3251
3252                         /* Scan all objects in the grid */
3253                         for (this_o_idx = c_ptr->o_idx; this_o_idx; this_o_idx = next_o_idx)
3254                         {
3255                                 object_type *o_ptr;
3256
3257                                 /* Acquire object */
3258                                 o_ptr = &o_list[this_o_idx];
3259
3260                                 /* Acquire next object */
3261                                 next_o_idx = o_ptr->next_o_idx;
3262
3263                                 /* Skip gold */
3264                                 if (o_ptr->tval == TV_GOLD) continue;
3265
3266                                 /*
3267                                  * Skip "real" corpses and statues, to avoid extreme
3268                                  * silliness like a novice rogue pockets full of statues
3269                                  * and corpses.
3270                                  */
3271                                 if ((o_ptr->tval == TV_CORPSE) ||
3272                                     (o_ptr->tval == TV_STATUE)) continue;
3273
3274                                 /* Take or Kill objects on the floor */
3275                                 if ((r_ptr->flags2 & (RF2_TAKE_ITEM | RF2_KILL_ITEM)) &&
3276                                          (!is_pet(m_ptr) || (p_ptr->pet_extra_flags & PF_PICKUP_ITEMS)))
3277                                 {
3278                                         u32b flgs[TR_FLAG_SIZE];
3279
3280                                         u32b flg2 = 0L;
3281                                         u32b flg3 = 0L;
3282
3283                                         char m_name[80];
3284                                         char o_name[MAX_NLEN];
3285
3286                                         /* Extract some flags */
3287                                         object_flags(o_ptr, flgs);
3288
3289                                         /* Acquire the object name */
3290                                         object_desc(o_name, o_ptr, TRUE, 3);
3291
3292                                         /* Acquire the monster name */
3293                                         monster_desc(m_name, m_ptr, 0x04);
3294
3295                                         /* React to objects that hurt the monster */
3296                                         if (have_flag(flgs, TR_KILL_DRAGON)) flg3 |= (RF3_DRAGON);
3297                                         if (have_flag(flgs, TR_SLAY_DRAGON)) flg3 |= (RF3_DRAGON);
3298                                         if (have_flag(flgs, TR_SLAY_TROLL))  flg3 |= (RF3_TROLL);
3299                                         if (have_flag(flgs, TR_KILL_TROLL))  flg3 |= (RF3_TROLL);
3300                                         if (have_flag(flgs, TR_KILL_GIANT))  flg3 |= (RF3_GIANT);
3301                                         if (have_flag(flgs, TR_SLAY_GIANT))  flg3 |= (RF3_GIANT);
3302                                         if (have_flag(flgs, TR_SLAY_ORC))    flg3 |= (RF3_ORC);
3303                                         if (have_flag(flgs, TR_KILL_ORC))    flg3 |= (RF3_ORC);
3304                                         if (have_flag(flgs, TR_SLAY_DEMON))  flg3 |= (RF3_DEMON);
3305                                         if (have_flag(flgs, TR_KILL_DEMON))  flg3 |= (RF3_DEMON);
3306                                         if (have_flag(flgs, TR_SLAY_UNDEAD)) flg3 |= (RF3_UNDEAD);
3307                                         if (have_flag(flgs, TR_KILL_UNDEAD)) flg3 |= (RF3_UNDEAD);
3308                                         if (have_flag(flgs, TR_SLAY_ANIMAL)) flg3 |= (RF3_ANIMAL);
3309                                         if (have_flag(flgs, TR_KILL_ANIMAL)) flg3 |= (RF3_ANIMAL);
3310                                         if (have_flag(flgs, TR_SLAY_EVIL))   flg3 |= (RF3_EVIL);
3311                                         if (have_flag(flgs, TR_KILL_EVIL))   flg3 |= (RF3_EVIL);
3312                                         if (have_flag(flgs, TR_SLAY_HUMAN))  flg2 |= (RF2_HUMAN);
3313                                         if (have_flag(flgs, TR_KILL_HUMAN))  flg2 |= (RF2_HUMAN);
3314
3315                                         /* The object cannot be picked up by the monster */
3316                                         if (artifact_p(o_ptr) || (r_ptr->flags3 & flg3) || (r_ptr->flags2 & flg2) ||
3317                                                 (o_ptr->art_name))
3318                                         {
3319                                                 /* Only give a message for "take_item" */
3320                                                 if ((r_ptr->flags2 & (RF2_TAKE_ITEM)) && (r_ptr->flags2 & (RF2_STUPID)))
3321                                                 {
3322                                                         /* Take note */
3323                                                         did_take_item = TRUE;
3324
3325                                                         /* Describe observable situations */
3326                                                         if (m_ptr->ml && player_can_see_bold(ny, nx))
3327                                                         {
3328                                                                 /* Dump a message */
3329 #ifdef JP
3330 msg_format("%^s¤Ï%s¤ò½¦¤ª¤¦¤È¤·¤¿¤¬¡¢¤À¤á¤À¤Ã¤¿¡£", m_name, o_name);
3331 #else
3332 msg_format("%^s tries to pick up %s, but fails.", m_name, o_name);
3333 #endif
3334                                                         }
3335                                                 }
3336                                         }
3337
3338                                         /* Pick up the item */
3339                                         else if (r_ptr->flags2 & RF2_TAKE_ITEM)
3340                                         {
3341                                                 /* Take note */
3342                                                 did_take_item = TRUE;
3343
3344                                                 /* Describe observable situations */
3345                                                 if (player_can_see_bold(ny, nx))
3346                                                 {
3347                                                         /* Dump a message */
3348 #ifdef JP
3349 msg_format("%^s¤¬%s¤ò½¦¤Ã¤¿¡£", m_name, o_name);
3350 #else
3351                                                         msg_format("%^s picks up %s.", m_name, o_name);
3352 #endif
3353
3354                                                 }
3355
3356                                                 /* Excise the object */
3357                                                 excise_object_idx(this_o_idx);
3358
3359                                                 /* Forget mark */
3360                                                 o_ptr->marked = 0;
3361
3362                                                 /* Forget location */
3363                                                 o_ptr->iy = o_ptr->ix = 0;
3364
3365                                                 /* Memorize monster */
3366                                                 o_ptr->held_m_idx = m_idx;
3367
3368                                                 /* Build a stack */
3369                                                 o_ptr->next_o_idx = m_ptr->hold_o_idx;
3370
3371                                                 /* Carry object */
3372                                                 m_ptr->hold_o_idx = this_o_idx;
3373                                         }
3374
3375                                         /* Destroy the item if not a pet */
3376                                         else if (!is_pet(m_ptr))
3377                                         {
3378                                                 /* Take note */
3379                                                 did_kill_item = TRUE;
3380
3381                                                 /* Describe observable situations */
3382                                                 if (player_has_los_bold(ny, nx))
3383                                                 {
3384                                                         /* Dump a message */
3385 #ifdef JP
3386 msg_format("%^s¤¬%s¤òÇË²õ¤·¤¿¡£", m_name, o_name);
3387 #else
3388                                                         msg_format("%^s destroys %s.", m_name, o_name);
3389 #endif
3390
3391                                                 }
3392
3393                                                 /* Delete the object */
3394                                                 delete_object_idx(this_o_idx);
3395                                         }
3396                                 }
3397                         }
3398                 }
3399
3400                 /* Stop when done */
3401                 if (do_turn) break;
3402         }
3403
3404         /*
3405          *  Forward movements failed, but now received LOS attack!
3406          *  Try to flow by smell.
3407          */
3408         if (p_ptr->no_flowed && i > 2 &&  m_ptr->target_y)
3409                 m_ptr->mflag2 &= ~MFLAG2_NOFLOW;
3410
3411         /* If we haven't done anything, try casting a spell again */
3412         if (!do_turn && !do_move && !m_ptr->monfear && !(p_ptr->riding == m_idx) && aware)
3413         {
3414                 /* Try to cast spell again */
3415                 if (r_ptr->freq_spell && randint1(100) <= r_ptr->freq_spell)
3416                 {
3417                         if (make_attack_spell(m_idx)) return;
3418                 }
3419         }
3420
3421
3422         /* Notice changes in view */
3423         if (do_view)
3424         {
3425                 /* Update some things */
3426                 p_ptr->update |= (PU_VIEW | PU_LITE | PU_FLOW | PU_MONSTERS | PU_MON_LITE);
3427
3428                 /* Window stuff */
3429                 p_ptr->window |= (PW_OVERHEAD | PW_DUNGEON);
3430         }
3431
3432         /* Notice changes in view */
3433         if (do_move && ((r_ptr->flags7 & (RF7_SELF_LITE_1 | RF7_SELF_LITE_2)) || ((r_ptr->flags7 & (RF7_HAS_LITE_1 | RF7_HAS_LITE_2)) && !p_ptr->inside_battle)))
3434         {
3435                 /* Update some things */
3436                 p_ptr->update |= (PU_MON_LITE);
3437         }
3438
3439         /* Learn things from observable monster */
3440         if (m_ptr->ml)
3441         {
3442                 /* Monster opened a door */
3443                 if (did_open_door) r_ptr->r_flags2 |= (RF2_OPEN_DOOR);
3444
3445                 /* Monster bashed a door */
3446                 if (did_bash_door) r_ptr->r_flags2 |= (RF2_BASH_DOOR);
3447
3448                 /* Monster tried to pick something up */
3449                 if (did_take_item) r_ptr->r_flags2 |= (RF2_TAKE_ITEM);
3450
3451                 /* Monster tried to crush something */
3452                 if (did_kill_item) r_ptr->r_flags2 |= (RF2_KILL_ITEM);
3453
3454                 /* Monster pushed past another monster */
3455                 if (did_move_body) r_ptr->r_flags2 |= (RF2_MOVE_BODY);
3456
3457                 /* Monster passed through a wall */
3458                 if (did_pass_wall) r_ptr->r_flags2 |= (RF2_PASS_WALL);
3459
3460                 /* Monster destroyed a wall */
3461                 if (did_kill_wall) r_ptr->r_flags2 |= (RF2_KILL_WALL);
3462         }
3463
3464
3465         /* Hack -- get "bold" if out of options */
3466         if (!do_turn && !do_move && m_ptr->monfear && aware)
3467         {
3468                 /* No longer afraid */
3469                 m_ptr->monfear = 0;
3470
3471                 /* Message if seen */
3472                 if (m_ptr->ml)
3473                 {
3474                         char m_name[80];
3475
3476                         /* Acquire the monster name */
3477                         monster_desc(m_name, m_ptr, 0);
3478
3479                         /* Dump a message */
3480 #ifdef JP
3481 msg_format("%^s¤ÏÀï¤¤¤ò·è°Õ¤·¤¿¡ª", m_name);
3482 #else
3483                         msg_format("%^s turns to fight!", m_name);
3484 #endif
3485
3486                         /* Redraw (later) if needed */
3487                         if (p_ptr->health_who == m_idx) p_ptr->redraw |= (PR_HEALTH);
3488
3489                         chg_virtue(V_COMPASSION, -1);
3490                 }
3491
3492                 /* XXX XXX XXX Actually do something now (?) */
3493         }
3494 }
3495
3496 /*
3497  * Process all the "live" monsters, once per game turn.
3498  *
3499  * During each game turn, we scan through the list of all the "live" monsters,
3500  * (backwards, so we can excise any "freshly dead" monsters), energizing each
3501  * monster, and allowing fully energized monsters to move, attack, pass, etc.
3502  *
3503  * Note that monsters can never move in the monster array (except when the
3504  * "compact_monsters()" function is called by "dungeon()" or "save_player()").
3505  *
3506  * This function is responsible for at least half of the processor time
3507  * on a normal system with a "normal" amount of monsters and a player doing
3508  * normal things.
3509  *
3510  * When the player is resting, virtually 90% of the processor time is spent
3511  * in this function, and its children, "process_monster()" and "make_move()".
3512  *
3513  * Most of the rest of the time is spent in "update_view()" and "lite_spot()",
3514  * especially when the player is running.
3515  *
3516  * Note the special "MFLAG_BORN" flag, which allows us to ignore "fresh"
3517  * monsters while they are still being "born".  A monster is "fresh" only
3518  * during the turn in which it is created, and we use the "hack_m_idx" to
3519  * determine if the monster is yet to be processed during the current turn.
3520  *
3521  * Note the special "MFLAG_NICE" flag, which allows the player to get one
3522  * move before any "nasty" monsters get to use their spell attacks.
3523  *
3524  * Note that when the "knowledge" about the currently tracked monster
3525  * changes (flags, attacks, spells), we induce a redraw of the monster
3526  * recall window.
3527  */
3528 void process_monsters(void)
3529 {
3530         int             i;
3531         int             fx, fy;
3532
3533         bool            test;
3534
3535         monster_type    *m_ptr;
3536         monster_race    *r_ptr;
3537
3538         int             old_monster_race_idx;
3539
3540         u32b    old_r_flags1 = 0L;
3541         u32b    old_r_flags2 = 0L;
3542         u32b    old_r_flags3 = 0L;
3543         u32b    old_r_flags4 = 0L;
3544         u32b    old_r_flags5 = 0L;
3545         u32b    old_r_flags6 = 0L;
3546
3547         byte    old_r_blows0 = 0;
3548         byte    old_r_blows1 = 0;
3549         byte    old_r_blows2 = 0;
3550         byte    old_r_blows3 = 0;
3551
3552         byte    old_r_cast_spell = 0;
3553
3554         int speed;
3555
3556         /* Clear monster fighting indicator */
3557         mon_fight = FALSE;
3558
3559         /* Memorize old race */
3560         old_monster_race_idx = p_ptr->monster_race_idx;
3561
3562         /* Acquire knowledge */
3563         if (p_ptr->monster_race_idx)
3564         {
3565                 /* Acquire current monster */
3566                 r_ptr = &r_info[p_ptr->monster_race_idx];
3567
3568                 /* Memorize flags */
3569                 old_r_flags1 = r_ptr->r_flags1;
3570                 old_r_flags2 = r_ptr->r_flags2;
3571                 old_r_flags3 = r_ptr->r_flags3;
3572                 old_r_flags4 = r_ptr->r_flags4;
3573                 old_r_flags5 = r_ptr->r_flags5;
3574                 old_r_flags6 = r_ptr->r_flags6;
3575
3576                 /* Memorize blows */
3577                 old_r_blows0 = r_ptr->r_blows[0];
3578                 old_r_blows1 = r_ptr->r_blows[1];
3579                 old_r_blows2 = r_ptr->r_blows[2];
3580                 old_r_blows3 = r_ptr->r_blows[3];
3581
3582                 /* Memorize castings */
3583                 old_r_cast_spell = r_ptr->r_cast_spell;
3584         }
3585
3586
3587         /* Process the monsters (backwards) */
3588         for (i = m_max - 1; i >= 1; i--)
3589         {
3590                 /* Access the monster */
3591                 m_ptr = &m_list[i];
3592                 r_ptr = &r_info[m_ptr->r_idx];
3593
3594                 /* Handle "leaving" */
3595                 if (p_ptr->leaving) break;
3596
3597                 /* Ignore "dead" monsters */
3598                 if (!m_ptr->r_idx) continue;
3599
3600                 if (p_ptr->wild_mode) continue;
3601
3602
3603                 /* Handle "fresh" monsters */
3604                 if (m_ptr->mflag & MFLAG_BORN)
3605                 {
3606                         /* No longer "fresh" */
3607                         m_ptr->mflag &= ~(MFLAG_BORN);
3608
3609                         /* Skip */
3610                         continue;
3611                 }
3612
3613                 /* Hack -- Require proximity */
3614                 if (m_ptr->cdis >= 100) continue;
3615
3616
3617                 /* Access the location */
3618                 fx = m_ptr->fx;
3619                 fy = m_ptr->fy;
3620
3621                 /* Flow by smell is allowed */
3622                 if (!p_ptr->no_flowed)
3623                 {
3624                         m_ptr->mflag2 &= ~MFLAG2_NOFLOW;
3625                 }
3626
3627                 /* Assume no move */
3628                 test = FALSE;
3629
3630                 /* Handle "sensing radius" */
3631                 if (m_ptr->cdis <= (is_pet(m_ptr) ? (r_ptr->aaf > MAX_SIGHT ? MAX_SIGHT : r_ptr->aaf) : r_ptr->aaf))
3632                 {
3633                         /* We can "sense" the player */
3634                         test = TRUE;
3635                 }
3636
3637                 /* Handle "sight" and "aggravation" */
3638                 else if ((m_ptr->cdis <= MAX_SIGHT) &&
3639                         (player_has_los_bold(fy, fx) || (p_ptr->cursed & TRC_AGGRAVATE)))
3640                 {
3641                         /* We can "see" or "feel" the player */
3642                         test = TRUE;
3643                 }
3644
3645 #if 0 /* (cave[py][px].when == cave[fy][fx].when) is always FALSE... */
3646                 /* Hack -- Monsters can "smell" the player from far away */
3647                 /* Note that most monsters have "aaf" of "20" or so */
3648                 else if (!(m_ptr->mflag2 & MFLAG2_NOFLOW) &&
3649                         (cave_floor_bold(py, px) || (cave[py][px].feat == FEAT_TREES)) &&
3650                         (cave[py][px].when == cave[fy][fx].when) &&
3651                         (cave[fy][fx].dist < MONSTER_FLOW_DEPTH) &&
3652                         (cave[fy][fx].dist < r_ptr->aaf))
3653                 {
3654                         /* We can "smell" the player */
3655                         test = TRUE;
3656                 }
3657 #endif
3658                 else if (m_ptr->target_y) test = TRUE;
3659
3660                 /* Do nothing */
3661                 if (!test) continue;
3662
3663
3664                 if (p_ptr->riding == i)
3665                         speed = p_ptr->pspeed;
3666                 else
3667                 {
3668                         speed = m_ptr->mspeed;
3669
3670                         /* Monsters move quickly in Nightmare mode */
3671                         if (ironman_nightmare) speed += 5;
3672
3673                         if (m_ptr->fast) speed += 10;
3674                         if (m_ptr->slow) speed -= 10;
3675                 }
3676
3677                 /* Give this monster some energy */
3678                 m_ptr->energy_need -= SPEED_TO_ENERGY(speed);
3679
3680                 /* Not enough energy to move */
3681                 if (m_ptr->energy_need > 0) continue;
3682
3683                 /* Use up "some" energy */
3684                 m_ptr->energy_need += ENERGY_NEED();
3685
3686
3687                 /* Save global index */
3688                 hack_m_idx = i;
3689
3690                 /* Process the monster */
3691                 process_monster(i);
3692
3693                 reset_target(m_ptr);
3694
3695                 /* Give up flow_by_smell when it might useless */
3696                 if (p_ptr->no_flowed && one_in_(3))
3697                         m_ptr->mflag2 |= MFLAG2_NOFLOW;
3698
3699                 /* Hack -- notice death or departure */
3700                 if (!p_ptr->playing || p_ptr->is_dead) break;
3701
3702                 /* Notice leaving */
3703                 if (p_ptr->leaving) break;
3704         }
3705
3706         /* Reset global index */
3707         hack_m_idx = 0;
3708
3709
3710         /* Tracking a monster race (the same one we were before) */
3711         if (p_ptr->monster_race_idx && (p_ptr->monster_race_idx == old_monster_race_idx))
3712         {
3713                 /* Acquire monster race */
3714                 r_ptr = &r_info[p_ptr->monster_race_idx];
3715
3716                 /* Check for knowledge change */
3717                 if ((old_r_flags1 != r_ptr->r_flags1) ||
3718                         (old_r_flags2 != r_ptr->r_flags2) ||
3719                         (old_r_flags3 != r_ptr->r_flags3) ||
3720                         (old_r_flags4 != r_ptr->r_flags4) ||
3721                         (old_r_flags5 != r_ptr->r_flags5) ||
3722                         (old_r_flags6 != r_ptr->r_flags6) ||
3723                         (old_r_blows0 != r_ptr->r_blows[0]) ||
3724                         (old_r_blows1 != r_ptr->r_blows[1]) ||
3725                         (old_r_blows2 != r_ptr->r_blows[2]) ||
3726                         (old_r_blows3 != r_ptr->r_blows[3]) ||
3727                         (old_r_cast_spell != r_ptr->r_cast_spell))
3728                 {
3729                         /* Window stuff */
3730                         p_ptr->window |= (PW_MONSTER);
3731                 }
3732         }
3733 }
3734
3735
3736
3737 bool process_the_world(int num, int who, bool vs_player)
3738 {
3739         monster_type *m_ptr = &m_list[hack_m_idx];  /* the world monster */
3740
3741         if(world_monster) return (FALSE);
3742
3743         if(vs_player)
3744         {
3745                 char m_name[80];
3746                 monster_desc(m_name, m_ptr, 0);
3747
3748                 if (who == 1)
3749 #ifdef JP
3750                         msg_print("¡Ö¡Ø¥¶¡¦¥ï¡¼¥ë¥É¡Ù¡ª»þ¤Ï»ß¤Þ¤Ã¤¿¡ª¡×");
3751 #else
3752                         msg_format("%s yells 'The World! Time has stopped!'", m_name);
3753 #endif
3754                 else if (who == 3)
3755 #ifdef JP
3756                         msg_print("¡Ö»þ¤è¡ª¡×");
3757 #else
3758                         msg_format("%s yells 'Time!'", m_name);
3759 #endif
3760                 else msg_print("hek!");
3761
3762                 msg_print(NULL);
3763         }
3764
3765         world_monster = TRUE;
3766
3767         if (vs_player) do_cmd_redraw();
3768
3769         while(num--)
3770         {
3771                 if(!m_ptr->r_idx) break;
3772                 process_monster(hack_m_idx);
3773
3774                 reset_target(m_ptr);
3775
3776                 /* Notice stuff */
3777                 if (p_ptr->notice) notice_stuff();
3778
3779                 /* Update stuff */
3780                 if (p_ptr->update) update_stuff();
3781
3782                 /* Redraw stuff */
3783                 if (p_ptr->redraw) redraw_stuff();
3784
3785                 /* Redraw stuff */
3786                 if (p_ptr->window) window_stuff();
3787
3788                 /* Delay */
3789                 if (vs_player) Term_xtra(TERM_XTRA_DELAY, 500);
3790         }
3791
3792         /* Redraw map */
3793         p_ptr->redraw |= (PR_MAP);
3794
3795         /* Update monsters */
3796         p_ptr->update |= (PU_MONSTERS);
3797
3798         /* Window stuff */
3799         p_ptr->window |= (PW_OVERHEAD | PW_DUNGEON);
3800
3801         world_monster = FALSE;
3802         if (vs_player || los(py, px, m_ptr->fy, m_ptr->fx))
3803         {
3804 #ifdef JP
3805                 msg_print("¡Ö»þ¤ÏÆ°¤¤À¤¹¡Ä¡×");
3806 #else
3807                 msg_print("You feel time flowing around you once more.");
3808 #endif
3809                 msg_print(NULL);
3810         }
3811
3812         handle_stuff();
3813
3814         return (TRUE);
3815 }
3816
3817
3818 void monster_gain_exp(int m_idx, int s_idx)
3819 {
3820         monster_type *m_ptr = &m_list[m_idx];
3821         monster_race *r_ptr = &r_info[m_ptr->r_idx];
3822         monster_race *s_ptr = &r_info[s_idx];
3823         int new_exp;
3824
3825         if (p_ptr->inside_battle) return;
3826
3827         if (!r_ptr->next_exp) return;
3828
3829         new_exp = s_ptr->mexp * s_ptr->level / (r_ptr->level + 2);
3830         if (m_idx == p_ptr->riding) new_exp = (new_exp + 1) / 2;
3831         if (!dun_level) new_exp /= 5;
3832         m_ptr->exp += new_exp;
3833         if (m_ptr->mflag2 & MFLAG2_CHAMELEON) return;
3834
3835         if (m_ptr->exp >= r_ptr->next_exp)
3836         {
3837                 char m_name[80];
3838                 int old_hp = m_ptr->hp;
3839                 int old_maxhp = m_ptr->max_maxhp;
3840                 int old_r_idx = m_ptr->r_idx;
3841                 byte old_sub_align = m_ptr->sub_align;
3842
3843                 monster_desc(m_name, m_ptr, 0);
3844                 m_ptr->r_idx = r_ptr->next_r_idx;
3845                 m_ptr->ap_r_idx = m_ptr->r_idx;
3846                 r_ptr = &r_info[m_ptr->r_idx];
3847                 if (r_ptr->flags1 & RF1_FORCE_MAXHP)
3848                 {
3849                         m_ptr->max_maxhp = maxroll(r_ptr->hdice, r_ptr->hside);
3850                 }
3851                 else
3852                 {
3853                         m_ptr->max_maxhp = damroll(r_ptr->hdice, r_ptr->hside);
3854                 }
3855                 if (ironman_nightmare)
3856                 {
3857                         u32b hp = m_ptr->max_maxhp * 2L;
3858
3859                         m_ptr->max_maxhp = (s16b)MIN(30000, hp);
3860                 }
3861                 m_ptr->maxhp = m_ptr->max_maxhp;
3862                 m_ptr->hp = old_hp * m_ptr->maxhp / old_maxhp;
3863
3864                 /* Extract the monster base speed */
3865                 m_ptr->mspeed = get_mspeed(r_ptr);
3866
3867                 /* Sub-alignment of a monster */
3868                 if (!is_pet(m_ptr) && !(r_ptr->flags3 & (RF3_EVIL | RF3_GOOD)))
3869                         m_ptr->sub_align = old_sub_align;
3870                 else
3871                 {
3872                         m_ptr->sub_align = SUB_ALIGN_NEUTRAL;
3873                         if (r_ptr->flags3 & RF3_EVIL) m_ptr->sub_align |= SUB_ALIGN_EVIL;
3874                         if (r_ptr->flags3 & RF3_GOOD) m_ptr->sub_align |= SUB_ALIGN_GOOD;
3875                 }
3876
3877                 m_ptr->exp = 0;
3878
3879                 if (is_pet(m_ptr) || m_ptr->ml)
3880                 {
3881 #ifdef JP
3882                         msg_format("%s¤Ï%s¤Ë¿Ê²½¤·¤¿¡£", m_name, r_name + r_ptr->name);
3883 #else
3884                         msg_format("%^s evolved into %s.", m_name, r_name + r_ptr->name);
3885 #endif
3886                         r_info[old_r_idx].r_xtra1 |= MR1_SINKA;
3887                 }
3888                 update_mon(m_idx, FALSE);
3889                 lite_spot(m_ptr->fy, m_ptr->fx);
3890         }
3891         if (m_idx == p_ptr->riding) p_ptr->update |= PU_BONUS;
3892 }