src/wild.c

   1 /* File: wild.c */
   2
   3 /* Purpose: Wilderness generation */
   4
   5 /*
   6  * Copyright (c) 1989, 1999 James E. Wilson, Robert A. Koeneke,
   7  * Robert Ruehlmann
   8  *
   9  * This software may be copied and distributed for educational, research, and
  10  * not for profit purposes provided that this copyright and statement are
  11  * included in all such copies.
  12  */
  13
  14 #include "angband.h"
  15
  16
  17 /*
  18  * Helper for plasma generation.
  19  */
  20 static void perturb_point_mid(int x1, int x2, int x3, int x4,
  21                           int xmid, int ymid, int rough, int depth_max)
  22 {
  23         /*
  24          * Average the four corners & perturb it a bit.
  25          * tmp is a random int +/- rough
  26          */
  27         int tmp2 = rough*2 + 1;
  28         int tmp = randint1(tmp2) - (rough + 1);
  29
  30         int avg = ((x1 + x2 + x3 + x4) / 4) + tmp;
  31
  32         /* Division always rounds down, so we round up again */
  33         if (((x1 + x2 + x3 + x4) % 4) > 1)
  34                 avg++;
  35
  36         /* Normalize */
  37         if (avg < 0) avg = 0;
  38         if (avg > depth_max) avg = depth_max;
  39
  40         /* Set the new value. */
  41         cave[ymid][xmid].feat = avg;
  42 }
  43
  44
  45 static void perturb_point_end(int x1, int x2, int x3,
  46                           int xmid, int ymid, int rough, int depth_max)
  47 {
  48         /*
  49          * Average the three corners & perturb it a bit.
  50          * tmp is a random int +/- rough
  51          */
  52         int tmp2 = rough * 2 + 1;
  53         int tmp = randint0(tmp2) - rough;
  54
  55         int avg = ((x1 + x2 + x3) / 3) + tmp;
  56
  57         /* Division always rounds down, so we round up again */
  58         if ((x1 + x2 + x3) % 3) avg++;
  59
  60         /* Normalize */
  61         if (avg < 0) avg = 0;
  62         if (avg > depth_max) avg = depth_max;
  63
  64         /* Set the new value. */
  65         cave[ymid][xmid].feat = avg;
  66 }
  67
  68
  69 /*
  70  * A generic function to generate the plasma fractal.
  71  * Note that it uses ``cave_feat'' as temporary storage.
  72  * The values in ``cave_feat'' after this function
  73  * are NOT actual features; They are raw heights which
  74  * need to be converted to features.
  75  */
  76 static void plasma_recursive(int x1, int y1, int x2, int y2,
  77                              int depth_max, int rough)
  78 {
  79         /* Find middle */
  80         int xmid = (x2 - x1) / 2 + x1;
  81         int ymid = (y2 - y1) / 2 + y1;
  82
  83         /* Are we done? */
  84         if (x1 + 1 == x2) return;
  85
  86         perturb_point_mid(cave[y1][x1].feat, cave[y2][x1].feat, cave[y1][x2].feat,
  87                 cave[y2][x2].feat, xmid, ymid, rough, depth_max);
  88
  89         perturb_point_end(cave[y1][x1].feat, cave[y1][x2].feat, cave[ymid][xmid].feat,
  90                 xmid, y1, rough, depth_max);
  91
  92         perturb_point_end(cave[y1][x2].feat, cave[y2][x2].feat, cave[ymid][xmid].feat,
  93                 x2, ymid, rough, depth_max);
  94
  95         perturb_point_end(cave[y2][x2].feat, cave[y2][x1].feat, cave[ymid][xmid].feat,
  96                 xmid, y2, rough, depth_max);
  97
  98         perturb_point_end(cave[y2][x1].feat, cave[y1][x1].feat, cave[ymid][xmid].feat,
  99                 x1, ymid, rough, depth_max);
 100
 101
 102         /* Recurse the four quadrants */
 103         plasma_recursive(x1, y1, xmid, ymid, depth_max, rough);
 104         plasma_recursive(xmid, y1, x2, ymid, depth_max, rough);
 105         plasma_recursive(x1, ymid, xmid, y2, depth_max, rough);
 106         plasma_recursive(xmid, ymid, x2, y2, depth_max, rough);
 107 }
 108
 109
 110 /*
 111  * The default table in terrain level generation.
 112  */
 113 static int terrain_table[MAX_WILDERNESS][18] =
 114 {
 115         /* TERRAIN_EDGE */
 116         {
 117                         FEAT_PERM_SOLID,
 118                         FEAT_PERM_SOLID,
 119                         FEAT_PERM_SOLID,
 120
 121                         FEAT_PERM_SOLID,
 122                         FEAT_PERM_SOLID,
 123                         FEAT_PERM_SOLID,
 124
 125                         FEAT_PERM_SOLID,
 126                         FEAT_PERM_SOLID,
 127                         FEAT_PERM_SOLID,
 128
 129                         FEAT_PERM_SOLID,
 130                         FEAT_PERM_SOLID,
 131                         FEAT_PERM_SOLID,
 132
 133                         FEAT_PERM_SOLID,
 134                         FEAT_PERM_SOLID,
 135                         FEAT_PERM_SOLID,
 136
 137                         FEAT_PERM_SOLID,
 138                         FEAT_PERM_SOLID,
 139                         FEAT_PERM_SOLID,
 140         },
 141         /* TERRAIN_TOWN */
 142         {
 143                         FEAT_FLOOR,
 144                         FEAT_FLOOR,
 145                         FEAT_FLOOR,
 146
 147                         FEAT_FLOOR,
 148                         FEAT_FLOOR,
 149                         FEAT_FLOOR,
 150
 151                         FEAT_FLOOR,
 152                         FEAT_FLOOR,
 153                         FEAT_FLOOR,
 154
 155                         FEAT_FLOOR,
 156                         FEAT_FLOOR,
 157                         FEAT_FLOOR,
 158
 159                         FEAT_FLOOR,
 160                         FEAT_FLOOR,
 161                         FEAT_FLOOR,
 162
 163                         FEAT_FLOOR,
 164                         FEAT_FLOOR,
 165                         FEAT_FLOOR,
 166         },
 167         /* TERRAIN_DEEP_WATER */
 168         {
 169                         FEAT_DEEP_WATER,
 170                         FEAT_DEEP_WATER,
 171                         FEAT_DEEP_WATER,
 172
 173                         FEAT_DEEP_WATER,
 174                         FEAT_DEEP_WATER,
 175                         FEAT_DEEP_WATER,
 176
 177                         FEAT_DEEP_WATER,
 178                         FEAT_DEEP_WATER,
 179                         FEAT_DEEP_WATER,
 180
 181                         FEAT_DEEP_WATER,
 182                         FEAT_DEEP_WATER,
 183                         FEAT_DEEP_WATER,
 184
 185                         FEAT_SHAL_WATER,
 186                         FEAT_SHAL_WATER,
 187                         FEAT_SHAL_WATER,
 188
 189                         FEAT_SHAL_WATER,
 190                         FEAT_SHAL_WATER,
 191                         FEAT_SHAL_WATER,
 192         },
 193         /* TERRAIN_SHALLOW_WATER */
 194         {
 195                         FEAT_DEEP_WATER,
 196                         FEAT_DEEP_WATER,
 197                         FEAT_DEEP_WATER,
 198
 199                         FEAT_SHAL_WATER,
 200                         FEAT_SHAL_WATER,
 201                         FEAT_SHAL_WATER,
 202
 203                         FEAT_SHAL_WATER,
 204                         FEAT_SHAL_WATER,
 205                         FEAT_SHAL_WATER,
 206
 207                         FEAT_SHAL_WATER,
 208                         FEAT_SHAL_WATER,
 209                         FEAT_SHAL_WATER,
 210
 211                         FEAT_SHAL_WATER,
 212                         FEAT_SHAL_WATER,
 213                         FEAT_SHAL_WATER,
 214
 215                         FEAT_FLOOR,
 216                         FEAT_DIRT,
 217                         FEAT_GRASS,
 218         },
 219         /* TERRAIN_SWAMP */
 220         {
 221                         FEAT_FLOOR,
 222                         FEAT_FLOOR,
 223                         FEAT_FLOOR,
 224
 225                         FEAT_SHAL_WATER,
 226                         FEAT_SHAL_WATER,
 227                         FEAT_SHAL_WATER,
 228
 229                         FEAT_SHAL_WATER,
 230                         FEAT_SHAL_WATER,
 231                         FEAT_SHAL_WATER,
 232
 233                         FEAT_GRASS,
 234                         FEAT_GRASS,
 235                         FEAT_GRASS,
 236
 237                         FEAT_GRASS,
 238                         FEAT_DIRT,
 239                         FEAT_DIRT,
 240
 241                         FEAT_DIRT,
 242                         FEAT_DEEP_GRASS,
 243                         FEAT_TREES,
 244         },
 245         /* TERRAIN_DIRT */
 246         {
 247                         FEAT_FLOOR,
 248                         FEAT_FLOOR,
 249                         FEAT_FLOOR,
 250
 251                         FEAT_DIRT,
 252                         FEAT_DIRT,
 253                         FEAT_DIRT,
 254
 255                         FEAT_DIRT,
 256                         FEAT_DIRT,
 257                         FEAT_DIRT,
 258
 259                         FEAT_DIRT,
 260                         FEAT_DIRT,
 261                         FEAT_DIRT,
 262
 263                         FEAT_DIRT,
 264                         FEAT_FLOWER,
 265                         FEAT_DEEP_GRASS,
 266
 267                         FEAT_GRASS,
 268                         FEAT_TREES,
 269                         FEAT_TREES,
 270         },
 271         /* TERRAIN_GRASS */
 272         {
 273                         FEAT_FLOOR,
 274                         FEAT_FLOOR,
 275                         FEAT_DIRT,
 276
 277                         FEAT_DIRT,
 278                         FEAT_GRASS,
 279                         FEAT_GRASS,
 280
 281                         FEAT_GRASS,
 282                         FEAT_GRASS,
 283                         FEAT_GRASS,
 284
 285                         FEAT_GRASS,
 286                         FEAT_GRASS,
 287                         FEAT_GRASS,
 288
 289                         FEAT_GRASS,
 290                         FEAT_FLOWER,
 291                         FEAT_DEEP_GRASS,
 292
 293                         FEAT_DEEP_GRASS,
 294                         FEAT_TREES,
 295                         FEAT_TREES,
 296         },
 297         /* TERRAIN_TREES */
 298         {
 299                         FEAT_FLOOR,
 300                         FEAT_FLOOR,
 301                         FEAT_DIRT,
 302
 303                         FEAT_TREES,
 304                         FEAT_TREES,
 305                         FEAT_TREES,
 306
 307                         FEAT_TREES,
 308                         FEAT_TREES,
 309                         FEAT_TREES,
 310
 311                         FEAT_TREES,
 312                         FEAT_TREES,
 313                         FEAT_TREES,
 314
 315                         FEAT_TREES,
 316                         FEAT_TREES,
 317                         FEAT_DEEP_GRASS,
 318
 319                         FEAT_DEEP_GRASS,
 320                         FEAT_GRASS,
 321                         FEAT_GRASS,
 322         },
 323         /* TERRAIN_DESERT */
 324         {
 325                         FEAT_FLOOR,
 326                         FEAT_FLOOR,
 327                         FEAT_DIRT,
 328
 329                         FEAT_DIRT,
 330                         FEAT_DIRT,
 331                         FEAT_DIRT,
 332
 333                         FEAT_DIRT,
 334                         FEAT_DIRT,
 335                         FEAT_DIRT,
 336
 337                         FEAT_DIRT,
 338                         FEAT_DIRT,
 339                         FEAT_DIRT,
 340
 341                         FEAT_DIRT,
 342                         FEAT_DIRT,
 343                         FEAT_DIRT,
 344
 345                         FEAT_GRASS,
 346                         FEAT_GRASS,
 347                         FEAT_GRASS,
 348         },
 349         /* TERRAIN_SHALLOW_LAVA */
 350         {
 351                         FEAT_SHAL_LAVA,
 352                         FEAT_SHAL_LAVA,
 353                         FEAT_SHAL_LAVA,
 354
 355                         FEAT_SHAL_LAVA,
 356                         FEAT_SHAL_LAVA,
 357                         FEAT_SHAL_LAVA,
 358
 359                         FEAT_SHAL_LAVA,
 360                         FEAT_SHAL_LAVA,
 361                         FEAT_SHAL_LAVA,
 362
 363                         FEAT_SHAL_LAVA,
 364                         FEAT_SHAL_LAVA,
 365                         FEAT_SHAL_LAVA,
 366
 367                         FEAT_SHAL_LAVA,
 368                         FEAT_SHAL_LAVA,
 369                         FEAT_DEEP_LAVA,
 370
 371                         FEAT_DEEP_LAVA,
 372                         FEAT_DEEP_LAVA,
 373                         FEAT_MOUNTAIN,
 374         },
 375         /* TERRAIN_DEEP_LAVA */
 376         {
 377                         FEAT_DIRT,
 378                         FEAT_DIRT,
 379                         FEAT_DIRT,
 380
 381                         FEAT_SHAL_LAVA,
 382                         FEAT_SHAL_LAVA,
 383                         FEAT_SHAL_LAVA,
 384
 385                         FEAT_DEEP_LAVA,
 386                         FEAT_DEEP_LAVA,
 387                         FEAT_DEEP_LAVA,
 388
 389                         FEAT_DEEP_LAVA,
 390                         FEAT_DEEP_LAVA,
 391                         FEAT_DEEP_LAVA,
 392
 393                         FEAT_DEEP_LAVA,
 394                         FEAT_DEEP_LAVA,
 395                         FEAT_DEEP_LAVA,
 396
 397                         FEAT_DEEP_LAVA,
 398                         FEAT_MOUNTAIN,
 399                         FEAT_MOUNTAIN,
 400         },
 401         /* TERRAIN_MOUNTAIN */
 402         {
 403                         FEAT_FLOOR,
 404                         FEAT_DEEP_GRASS,
 405                         FEAT_GRASS,
 406
 407                         FEAT_GRASS,
 408                         FEAT_DIRT,
 409                         FEAT_DIRT,
 410
 411                         FEAT_TREES,
 412                         FEAT_TREES,
 413                         FEAT_MOUNTAIN,
 414
 415                         FEAT_MOUNTAIN,
 416                         FEAT_MOUNTAIN,
 417                         FEAT_MOUNTAIN,
 418
 419                         FEAT_MOUNTAIN,
 420                         FEAT_MOUNTAIN,
 421                         FEAT_MOUNTAIN,
 422
 423                         FEAT_MOUNTAIN,
 424                         FEAT_MOUNTAIN,
 425                         FEAT_MOUNTAIN,
 426         },
 427
 428 };
 429
 430
 431 static void generate_wilderness_area(int terrain, u32b seed, bool border, bool corner)
 432 {
 433         int x1, y1;
 434         int table_size = sizeof(terrain_table[0]) / sizeof(int);
 435         int roughness = 1; /* The roughness of the level. */
 436
 437         /* The outer wall is easy */
 438         if (terrain == TERRAIN_EDGE)
 439         {
 440                 /* Create level background */
 441                 for (y1 = 0; y1 < MAX_HGT; y1++)
 442                 {
 443                         for (x1 = 0; x1 < MAX_WID; x1++)
 444                         {
 445                                 cave[y1][x1].feat = FEAT_PERM_SOLID;
 446                         }
 447                 }
 448
 449                 /* We are done already */
 450                 return;
 451         }
 452
 453
 454         /* Hack -- Use the "simple" RNG */
 455         Rand_quick = TRUE;
 456
 457         /* Hack -- Induce consistant town layout */
 458         Rand_value = seed;
 459
 460         if (!corner)
 461         {
 462                 /* Create level background */
 463                 for (y1 = 0; y1 < MAX_HGT; y1++)
 464                 {
 465                         for (x1 = 0; x1 < MAX_WID; x1++)
 466                         {
 467                                 cave[y1][x1].feat = table_size / 2;
 468                         }
 469                 }
 470         }
 471
 472         /*
 473          * Initialize the four corners
 474          * ToDo: calculate the medium height of the adjacent
 475          * terrains for every corner.
 476          */
 477         cave[1][1].feat = (byte)randint0(table_size);
 478         cave[MAX_HGT-2][1].feat = (byte)randint0(table_size);
 479         cave[1][MAX_WID-2].feat = (byte)randint0(table_size);
 480         cave[MAX_HGT-2][MAX_WID-2].feat = (byte)randint0(table_size);
 481
 482         if (!corner)
 483         {
 484                 /* x1, y1, x2, y2, num_depths, roughness */
 485                 plasma_recursive(1, 1, MAX_WID-2, MAX_HGT-2, table_size-1, roughness);
 486         }
 487
 488         /* Use the complex RNG */
 489         Rand_quick = FALSE;
 490
 491         for (y1 = 1; y1 < MAX_HGT-1; y1++)
 492         {
 493                 for (x1 = 1; x1 < MAX_WID-1; x1++)
 494                 {
 495                         cave[y1][x1].feat = terrain_table[terrain][cave[y1][x1].feat];
 496                 }
 497         }
 498 }
 499
 500
 501
 502 /*
 503  * Load a town or generate a terrain level using "plasma" fractals.
 504  *
 505  * x and y are the coordinates of the area in the wilderness.
 506  * Border and corner are optimization flags to speed up the
 507  * generation of the fractal terrain.
 508  * If border is set then only the border of the terrain should
 509  * be generated (for initializing the border structure).
 510  * If corner is set then only the corners of the area are needed.
 511  */
 512 static void generate_area(int y, int x, bool border, bool corner)
 513 {
 514         int x1, y1;
 515
 516         /* Number of the town (if any) */
 517         p_ptr->town_num = wilderness[y][x].town;
 518
 519         /* Set the base level */
 520         base_level = wilderness[y][x].level;
 521
 522         /* Set the dungeon level */
 523         dun_level = 0;
 524
 525         /* Set the monster generation level */
 526         monster_level = base_level;
 527
 528         /* Set the object generation level */
 529         object_level = base_level;
 530
 531
 532         /* Create the town */
 533         if (p_ptr->town_num)
 534         {
 535                 /* Reset the buildings */
 536                 init_buildings();
 537
 538                 /* Initialize the town */
 539                 if (border | corner)
 540                         init_flags = INIT_CREATE_DUNGEON | INIT_ONLY_FEATURES;
 541                 else
 542                         init_flags = INIT_CREATE_DUNGEON;
 543
 544                 process_dungeon_file("t_info_j.txt", 0, 0, MAX_HGT, MAX_WID);
 545
 546                 if (!corner && !border) p_ptr->visit |= (1L << (p_ptr->town_num - 1));
 547         }
 548         else
 549         {
 550                 int terrain = wilderness[y][x].terrain;
 551                 u32b seed = wilderness[y][x].seed;
 552
 553                 generate_wilderness_area(terrain, seed, border, corner);
 554         }
 555
 556         if (!corner && !wilderness[y][x].town)
 557         {
 558                 /*
 559                  * Place roads in the wilderness
 560                  * ToDo: make the road a bit more interresting
 561                  */
 562                 if (wilderness[y][x].road)
 563                 {
 564                         cave[MAX_HGT/2][MAX_WID/2].feat = FEAT_FLOOR;
 565
 566                         if (wilderness[y-1][x].road)
 567                         {
 568                                 /* North road */
 569                                 for (y1 = 1; y1 < MAX_HGT/2; y1++)
 570                                 {
 571                                         x1 = MAX_WID/2;
 572                                         cave[y1][x1].feat = FEAT_FLOOR;
 573                                 }
 574                         }
 575
 576                         if (wilderness[y+1][x].road)
 577                         {
 578                                 /* North road */
 579                                 for (y1 = MAX_HGT/2; y1 < MAX_HGT - 1; y1++)
 580                                 {
 581                                         x1 = MAX_WID/2;
 582                                         cave[y1][x1].feat = FEAT_FLOOR;
 583                                 }
 584                         }
 585
 586                         if (wilderness[y][x+1].road)
 587                         {
 588                                 /* East road */
 589                                 for (x1 = MAX_WID/2; x1 < MAX_WID - 1; x1++)
 590                                 {
 591                                         y1 = MAX_HGT/2;
 592                                         cave[y1][x1].feat = FEAT_FLOOR;
 593                                 }
 594                         }
 595
 596                         if (wilderness[y][x-1].road)
 597                         {
 598                                 /* West road */
 599                                 for (x1 = 1; x1 < MAX_WID/2; x1++)
 600                                 {
 601                                         y1 = MAX_HGT/2;
 602                                         cave[y1][x1].feat = FEAT_FLOOR;
 603                                 }
 604                         }
 605                 }
 606         }
 607
 608         if (wilderness[y][x].entrance && !wilderness[y][x].town && (p_ptr->total_winner || !(d_info[wilderness[y][x].entrance].flags1 & DF1_WINNER)))
 609         {
 610                 int dy, dx;
 611
 612                 /* Hack -- Use the "simple" RNG */
 613                 Rand_quick = TRUE;
 614
 615                 /* Hack -- Induce consistant town layout */
 616                 Rand_value = wilderness[y][x].seed;
 617
 618                 dy = rand_range(6, cur_hgt - 6);
 619                 dx = rand_range(6, cur_wid - 6);
 620
 621                 cave[dy][dx].feat = FEAT_ENTRANCE;
 622                 cave[dy][dx].special = (byte)wilderness[y][x].entrance;
 623
 624                 /* Use the complex RNG */
 625                 Rand_quick = FALSE;
 626         }
 627 }
 628
 629
 630 /*
 631  * Border of the wilderness area
 632  */
 633 static border_type border;
 634
 635
 636 /*
 637  * Build the wilderness area outside of the town.
 638  */
 639 void wilderness_gen(void)
 640 {
 641         int i, y, x, lim;
 642         cave_type *c_ptr;
 643
 644         /* Big town */
 645         cur_hgt = MAX_HGT;
 646         cur_wid = MAX_WID;
 647
 648         /* Assume illegal panel */
 649         panel_row_min = cur_hgt;
 650         panel_col_min = cur_wid;
 651
 652         /* Init the wilderness */
 653
 654         process_dungeon_file("w_info_j.txt", 0, 0, max_wild_y, max_wild_x);
 655
 656         x = p_ptr->wilderness_x;
 657         y = p_ptr->wilderness_y;
 658
 659         /* Prepare allocation table */
 660         get_mon_num_prep(get_monster_hook(), NULL);
 661
 662         /* North border */
 663         generate_area(y - 1, x, TRUE, FALSE);
 664
 665         for (i = 1; i < MAX_WID - 1; i++)
 666         {
 667                 border.north[i] = cave[MAX_HGT - 2][i].feat;
 668         }
 669
 670         /* South border */
 671         generate_area(y + 1, x, TRUE, FALSE);
 672
 673         for (i = 1; i < MAX_WID - 1; i++)
 674         {
 675                 border.south[i] = cave[1][i].feat;
 676         }
 677
 678         /* West border */
 679         generate_area(y, x - 1, TRUE, FALSE);
 680
 681         for (i = 1; i < MAX_HGT - 1; i++)
 682         {
 683                 border.west[i] = cave[i][MAX_WID - 2].feat;
 684         }
 685
 686         /* East border */
 687         generate_area(y, x + 1, TRUE, FALSE);
 688
 689         for (i = 1; i < MAX_HGT - 1; i++)
 690         {
 691                 border.east[i] = cave[i][1].feat;
 692         }
 693
 694         /* North west corner */
 695         generate_area(y - 1, x - 1, FALSE, TRUE);
 696         border.north_west = cave[MAX_HGT - 2][MAX_WID - 2].feat;
 697
 698         /* North east corner */
 699         generate_area(y - 1, x + 1, FALSE, TRUE);
 700         border.north_east = cave[MAX_HGT - 2][1].feat;
 701
 702         /* South west corner */
 703         generate_area(y + 1, x - 1, FALSE, TRUE);
 704         border.south_west = cave[1][MAX_WID - 2].feat;
 705
 706         /* South east corner */
 707         generate_area(y + 1, x + 1, FALSE, TRUE);
 708         border.south_east = cave[1][1].feat;
 709
 710
 711         /* Create terrain of the current area */
 712         generate_area(y, x, FALSE, FALSE);
 713
 714
 715         /* Special boundary walls -- North */
 716         for (i = 0; i < MAX_WID; i++)
 717         {
 718                 cave[0][i].feat = FEAT_PERM_SOLID;
 719                 cave[0][i].mimic = border.north[i];
 720         }
 721
 722         /* Special boundary walls -- South */
 723         for (i = 0; i < MAX_WID; i++)
 724         {
 725                 cave[MAX_HGT - 1][i].feat = FEAT_PERM_SOLID;
 726                 cave[MAX_HGT - 1][i].mimic = border.south[i];
 727         }
 728
 729         /* Special boundary walls -- West */
 730         for (i = 0; i < MAX_HGT; i++)
 731         {
 732                 cave[i][0].feat = FEAT_PERM_SOLID;
 733                 cave[i][0].mimic = border.west[i];
 734         }
 735
 736         /* Special boundary walls -- East */
 737         for (i = 0; i < MAX_HGT; i++)
 738         {
 739                 cave[i][MAX_WID - 1].feat = FEAT_PERM_SOLID;
 740                 cave[i][MAX_WID - 1].mimic = border.east[i];
 741         }
 742
 743         /* North west corner */
 744         cave[0][0].mimic = border.north_west;
 745
 746         /* North east corner */
 747         cave[0][MAX_WID - 1].mimic = border.north_east;
 748
 749         /* South west corner */
 750         cave[MAX_HGT - 1][0].mimic = border.south_west;
 751
 752         /* South east corner */
 753         cave[MAX_HGT - 1][MAX_WID - 1].mimic = border.south_east;
 754
 755         /* Light up or darken the area */
 756         for (y = 0; y < cur_hgt; y++)
 757         {
 758                 for (x = 0; x < cur_wid; x++)
 759                 {
 760                         /* Get the cave grid */
 761                         c_ptr = &cave[y][x];
 762
 763                         if (is_daytime())
 764                         {
 765                                 /* Assume lit */
 766                                 c_ptr->info |= (CAVE_GLOW);
 767
 768                                 /* Hack -- Memorize lit grids if allowed */
 769                                 if (view_perma_grids) c_ptr->info |= (CAVE_MARK);
 770                         }
 771                         else
 772                         {
 773                                 /* Darken "boring" features */
 774                                 if ((c_ptr->feat <= FEAT_INVIS) ||
 775                                     ((c_ptr->feat >= FEAT_DEEP_WATER) &&
 776                                         (c_ptr->feat <= FEAT_MOUNTAIN) &&
 777                                      (c_ptr->feat != FEAT_MUSEUM)) ||
 778                                     (x == 0) || (x == cur_wid-1) ||
 779                                     (y == 0) || (y == cur_hgt-1))
 780                                 {
 781                                         /* Forget the grid */
 782                                         c_ptr->info &= ~(CAVE_GLOW | CAVE_MARK);
 783                                 }
 784                                 else if (c_ptr->feat == FEAT_ENTRANCE)
 785                                 {
 786                                         /* Assume lit */
 787                                         c_ptr->info |= (CAVE_GLOW);
 788
 789                                         /* Hack -- Memorize lit grids if allowed */
 790                                         if (view_perma_grids) c_ptr->info |= (CAVE_MARK);
 791                                 }
 792                         }
 793                 }
 794         }
 795
 796         if (p_ptr->teleport_town)
 797         {
 798                 for (y = 0; y < cur_hgt; y++)
 799                 {
 800                         for (x = 0; x < cur_wid; x++)
 801                         {
 802                                 if (((cave[y][x].feat - FEAT_BLDG_HEAD) == 4) || ((p_ptr->town_num == 1) && ((cave[y][x].feat - FEAT_BLDG_HEAD) == 0)))
 803                                 {
 804                                         if (cave[y][x].m_idx) delete_monster_idx(cave[y][x].m_idx);
 805                                         p_ptr->oldpy = y;
 806                                         p_ptr->oldpx = x;
 807                                 }
 808                         }
 809                 }
 810                 p_ptr->teleport_town = FALSE;
 811         }
 812
 813         else if (p_ptr->leaving_dungeon)
 814         {
 815                 for (y = 0; y < cur_hgt; y++)
 816                 {
 817                         for (x = 0; x < cur_wid; x++)
 818                         {
 819                                 if (cave[y][x].feat == FEAT_ENTRANCE)
 820                                 {
 821                                         if (cave[y][x].m_idx) delete_monster_idx(cave[y][x].m_idx);
 822                                         p_ptr->oldpy = y;
 823                                         p_ptr->oldpx = x;
 824                                 }
 825                         }
 826                 }
 827                 p_ptr->teleport_town = FALSE;
 828         }
 829
 830         player_place(p_ptr->oldpy, p_ptr->oldpx);
 831         p_ptr->leftbldg = FALSE;
 832         /* p_ptr->leaving_dungeon = FALSE;*/
 833
 834         lim = (generate_encounter==TRUE)?40:MIN_M_ALLOC_TN;
 835
 836         /* Make some residents */
 837         for (i = 0; i < lim; i++)
 838         {
 839                 /* Make a resident */
 840                 (void)alloc_monster(generate_encounter ? 0 : 3, (bool)!(generate_encounter || (one_in_(2) && (!p_ptr->town_num))));
 841         }
 842
 843         if(generate_encounter) ambush_flag = TRUE;
 844         generate_encounter = FALSE;
 845
 846         for (i = 0; i < 100; i++)
 847         {
 848                 floor_type[i] = FEAT_FLOOR;
 849                 fill_type[i] = FEAT_WALL_EXTRA;
 850         }
 851
 852         /* Set rewarded quests to finished */
 853         for (i = 0; i < max_quests; i++)
 854         {
 855                 if (quest[i].status == QUEST_STATUS_REWARDED)
 856                         quest[i].status = QUEST_STATUS_FINISHED;
 857         }
 858 }
 859
 860
 861 /*
 862  * Build the wilderness area.
 863  * -DG-
 864  */
 865 void wilderness_gen_small()
 866 {
 867         int i, j;
 868
 869         /* To prevent stupid things */
 870         for (i = 0; i < MAX_WID; i++)
 871         for (j = 0; j < MAX_HGT; j++)
 872         {
 873                 cave[j][i].feat = FEAT_PERM_SOLID;
 874         }
 875
 876         /* Init the wilderness */
 877         process_dungeon_file("w_info_j.txt", 0, 0, max_wild_y, max_wild_x);
 878
 879         /* Fill the map */
 880         for (i = 0; i < max_wild_x; i++)
 881         for (j = 0; j < max_wild_y; j++)
 882         {
 883                 if (wilderness[j][i].town && (wilderness[j][i].town != NO_TOWN))
 884                 {
 885                         cave[j][i].feat = FEAT_TOWN;
 886                         cave[j][i].special = wilderness[j][i].town;
 887                 }
 888                 else if (wilderness[j][i].road) cave[j][i].feat = FEAT_FLOOR;
 889                 else if (wilderness[j][i].entrance && (p_ptr->total_winner || !(d_info[wilderness[j][i].entrance].flags1 & DF1_WINNER)))
 890                 {
 891                         cave[j][i].feat = FEAT_ENTRANCE;
 892                         cave[j][i].special = (byte)wilderness[j][i].entrance;
 893                 }
 894                 else cave[j][i].feat = conv_terrain2feat[wilderness[j][i].terrain];
 895
 896                 cave[j][i].info |= (CAVE_GLOW | CAVE_MARK);
 897         }
 898
 899         cur_hgt = (max_wild_y / SCREEN_HGT + 1) * SCREEN_HGT;
 900         cur_wid = (max_wild_x / SCREEN_WID + 1) * SCREEN_WID;
 901
 902         if (cur_hgt > MAX_HGT) cur_hgt = MAX_HGT;
 903         if (cur_wid > MAX_WID) cur_wid = MAX_WID;
 904
 905         /* Assume illegal panel */
 906         panel_row_min = cur_hgt;
 907         panel_col_min = cur_wid;
 908
 909         /* Place the player */
 910         px = p_ptr->wilderness_x;
 911         py = p_ptr->wilderness_y;
 912
 913         p_ptr->town_num = 0;
 914 }
 915
 916
 917 typedef struct wilderness_grid wilderness_grid;
 918
 919 struct wilderness_grid
 920 {
 921         int             terrain;    /* Terrain type */
 922         int             town;       /* Town number */
 923         s16b    level;          /* Level of the wilderness */
 924         byte    road;       /* Road */
 925         char    name[32];       /* Name of the town/wilderness */
 926 };
 927
 928
 929 static wilderness_grid w_letter[255];
 930
 931
 932 /*
 933  * Parse a sub-file of the "extra info"
 934  */
 935 errr parse_line_wilderness(char *buf, int ymin, int xmin, int ymax, int xmax, int *y, int *x)
 936 {
 937         int i, num;
 938         char *zz[33];
 939
 940
 941         /* Paranoia */
 942         if (!(buf[0] == 'W')) return (PARSE_ERROR_GENERIC);
 943
 944         switch (buf[2])
 945         {
 946                 /* Process "W:F:<letter>:<terrain>:<town>:<road>:<name> */
 947 #ifdef JP
 948         case 'E':
 949                 return 0;
 950         case 'F':
 951         case 'J':
 952 #else
 953         case 'J':
 954                 return 0;
 955         case 'F':
 956         case 'E':
 957 #endif
 958         {
 959                 if ((num = tokenize(buf+4, 6, zz, 0)) > 1)
 960                 {
 961                         int index = zz[0][0];
 962
 963                         if (num > 1)
 964                                 w_letter[index].terrain = atoi(zz[1]);
 965                         else
 966                                 w_letter[index].terrain = 0;
 967
 968                         if (num > 2)
 969                                 w_letter[index].level = atoi(zz[2]);
 970                         else
 971                                 w_letter[index].level = 0;
 972
 973                         if (num > 3)
 974                                 w_letter[index].town = atoi(zz[3]);
 975                         else
 976                                 w_letter[index].town = 0;
 977
 978                         if (num > 4)
 979                                 w_letter[index].road = atoi(zz[4]);
 980                         else
 981                                 w_letter[index].road = 0;
 982
 983                         if (num > 5)
 984                                 strcpy(w_letter[index].name, zz[5]);
 985                         else
 986                                 w_letter[index].name[0] = 0;
 987                 }
 988                 else
 989                 {
 990                                 /* Failure */
 991                         return (PARSE_ERROR_TOO_FEW_ARGUMENTS);
 992                 }
 993
 994                 break;
 995         }
 996
 997         /* Process "W:D:<layout> */
 998         /* Layout of the wilderness */
 999         case 'D':
1000         {
1001                 /* Acquire the text */
1002                 char *s = buf+4;
1003
1004                 /* Length of the text */
1005                 int len = strlen(s);
1006
1007                 for (*x = xmin, i = 0; ((*x < xmax) && (i < len)); (*x)++, s++, i++)
1008                 {
1009                         int idx = s[0];
1010
1011                         wilderness[*y][*x].terrain = w_letter[idx].terrain;
1012
1013                         wilderness[*y][*x].level = w_letter[idx].level;
1014
1015                         wilderness[*y][*x].town = w_letter[idx].town;
1016
1017                         wilderness[*y][*x].road = w_letter[idx].road;
1018
1019                         strcpy(town[w_letter[idx].town].name, w_letter[idx].name);
1020                 }
1021
1022                 (*y)++;
1023
1024                 break;
1025         }
1026
1027         /* Process "W:P:<x>:<y> - starting position in the wilderness */
1028         case 'P':
1029         {
1030                 if ((p_ptr->wilderness_x == 0) &&
1031                     (p_ptr->wilderness_y == 0))
1032                 {
1033                         if (tokenize(buf+4, 2, zz, 0) == 2)
1034                         {
1035                                 p_ptr->wilderness_y = atoi(zz[0]);
1036                                 p_ptr->wilderness_x = atoi(zz[1]);
1037
1038                                 if ((p_ptr->wilderness_x < 1) ||
1039                                     (p_ptr->wilderness_x > max_wild_x) ||
1040                                     (p_ptr->wilderness_y < 1) ||
1041                                     (p_ptr->wilderness_y > max_wild_y))
1042                                 {
1043                                         return (PARSE_ERROR_OUT_OF_BOUNDS);
1044                                 }
1045                         }
1046                         else
1047                         {
1048                                 return (PARSE_ERROR_TOO_FEW_ARGUMENTS);
1049                         }
1050                 }
1051
1052                 break;
1053         }
1054
1055         default:
1056                 /* Failure */
1057                 return (PARSE_ERROR_UNDEFINED_DIRECTIVE);
1058         }
1059
1060         for (i = 1; i < max_d_idx; i++)
1061         {
1062                 if (!d_info[i].maxdepth) continue;
1063                 wilderness[d_info[i].dy][d_info[i].dx].entrance = i;
1064                 if (!wilderness[d_info[i].dy][d_info[i].dx].town)
1065                         wilderness[d_info[i].dy][d_info[i].dx].level = d_info[i].mindepth;
1066         }
1067
1068         /* Success */
1069         return (0);
1070 }
1071
1072
1073 /*
1074  * Generate the random seeds for the wilderness
1075  */
1076 void seed_wilderness(void)
1077 {
1078         int x, y;
1079
1080         /* Init wilderness seeds */
1081         for (x = 0; x < max_wild_x; x++)
1082         {
1083                 for (y = 0; y < max_wild_y; y++)
1084                 {
1085                         wilderness[y][x].seed = randint0(0x10000000);
1086                         wilderness[y][x].entrance = 0;
1087                 }
1088         }
1089 }
1090
1091
1092 /*
1093  * Pointer to wilderness_type
1094  */
1095 typedef wilderness_type *wilderness_type_ptr;
1096
1097 /*
1098  * Initialize wilderness array
1099  */
1100 errr init_wilderness(void)
1101 {
1102         int i;
1103
1104         /* Allocate the wilderness (two-dimension array) */
1105         C_MAKE(wilderness, max_wild_y, wilderness_type_ptr);
1106         C_MAKE(wilderness[0], max_wild_x * max_wild_y, wilderness_type);
1107
1108         /* Init the other pointers */
1109         for (i = 1; i < max_wild_y; i++)
1110                 wilderness[i] = wilderness[0] + i * max_wild_x;
1111
1112         generate_encounter = FALSE;
1113
1114         return 0;
1115 }
1116
1117
1118 bool change_wild_mode(void)
1119 {
1120         int i;
1121         bool have_pet = FALSE;
1122
1123         if (lite_town || vanilla_town)
1124         {
1125 #ifdef JP
1126                 msg_print("¹ÓÌî¤Ê¤ó¤Æ¤Ê¤¤¡£");
1127 #else
1128                 msg_print("No global mal");
1129 #endif
1130                 return FALSE;
1131         }
1132         if (!p_ptr->wild_mode)
1133         {
1134                 for (i = 1; i < m_max; i++)
1135                 {
1136                         monster_type *m_ptr = &m_list[i];
1137
1138                         if (!m_ptr->r_idx) continue;
1139                         if (is_pet(m_ptr) && i != p_ptr->riding) have_pet = TRUE;
1140                         if (m_ptr->csleep) continue;
1141                         if (m_ptr->cdis > MAX_SIGHT) continue;
1142                         if (!is_hostile(m_ptr)) continue;
1143 #ifdef JP
1144                         msg_print("Å¨¤¬¤¹¤°¶á¤¯¤Ë¤¤¤ë¤È¤¤Ï¹°è¥Þ¥Ã¥×¤ËÆþ¤ì¤Ê¤¤¡ª");
1145 #else
1146                         msg_print("You cannot enter global map, since there is some monsters nearby!");
1147 #endif
1148                         energy_use = 0;
1149                         return FALSE;
1150                 }
1151
1152                 if (have_pet)
1153                 {
1154 #ifdef JP
1155                         if(!get_check_strict("¥Ú¥Ã¥È¤òÃÖ¤¤¤Æ¹°è¥Þ¥Ã¥×¤ËÆþ¤ê¤Þ¤¹¤«¡©", CHECK_OKAY_CANCEL))
1156 #else
1157                         if(!get_check_strict("Do you leave your pets behind? ", CHECK_OKAY_CANCEL))
1158 #endif
1159                         {
1160                                 energy_use = 0;
1161                                 return FALSE;
1162                         }
1163                 }
1164
1165                 energy_use = 1000;
1166         }
1167
1168         set_action(ACTION_NONE);
1169
1170         p_ptr->wild_mode = !p_ptr->wild_mode;
1171
1172         /* Leaving */
1173         p_ptr->leaving = TRUE;
1174
1175         return TRUE;
1176 }