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 = randint(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 = rand_int(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 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)rand_int(table_size);
 478         cave[MAX_HGT-2][1].feat = (byte)rand_int(table_size);
 479         cave[1][MAX_WID-2].feat = (byte)rand_int(table_size);
 480         cave[MAX_HGT-2][MAX_WID-2].feat = (byte)rand_int(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 && (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         bool daytime;
 643         cave_type *c_ptr;
 644
 645         /* Big town */
 646         cur_hgt = MAX_HGT;
 647         cur_wid = MAX_WID;
 648
 649         /* Determine number of panels */
 650         max_panel_rows = (cur_hgt / SCREEN_HGT) * 2 - 2;
 651         max_panel_cols = (cur_wid / SCREEN_WID) * 2 - 2;
 652
 653         /* Assume illegal panel */
 654         panel_row = max_panel_rows;
 655         panel_col = max_panel_cols;
 656
 657         /* Init the wilderness */
 658
 659         process_dungeon_file("w_info_j.txt", 0, 0, max_wild_y, max_wild_x);
 660
 661         x = p_ptr->wilderness_x;
 662         y = p_ptr->wilderness_y;
 663
 664         /* Prepare allocation table */
 665         get_mon_num_prep(get_monster_hook(), NULL);
 666
 667         /* North border */
 668         generate_area(y - 1, x, TRUE, FALSE);
 669
 670         for (i = 1; i < MAX_WID - 1; i++)
 671         {
 672                 border.north[i] = cave[MAX_HGT - 2][i].feat;
 673         }
 674
 675         /* South border */
 676         generate_area(y + 1, x, TRUE, FALSE);
 677
 678         for (i = 1; i < MAX_WID - 1; i++)
 679         {
 680                 border.south[i] = cave[1][i].feat;
 681         }
 682
 683         /* West border */
 684         generate_area(y, x - 1, TRUE, FALSE);
 685
 686         for (i = 1; i < MAX_HGT - 1; i++)
 687         {
 688                 border.west[i] = cave[i][MAX_WID - 2].feat;
 689         }
 690
 691         /* East border */
 692         generate_area(y, x + 1, TRUE, FALSE);
 693
 694         for (i = 1; i < MAX_HGT - 1; i++)
 695         {
 696                 border.east[i] = cave[i][1].feat;
 697         }
 698
 699         /* North west corner */
 700         generate_area(y - 1, x - 1, FALSE, TRUE);
 701         border.north_west = cave[MAX_HGT - 2][MAX_WID - 2].feat;
 702
 703         /* North east corner */
 704         generate_area(y - 1, x + 1, FALSE, TRUE);
 705         border.north_east = cave[MAX_HGT - 2][1].feat;
 706
 707         /* South west corner */
 708         generate_area(y + 1, x - 1, FALSE, TRUE);
 709         border.south_west = cave[1][MAX_WID - 2].feat;
 710
 711         /* South east corner */
 712         generate_area(y + 1, x + 1, FALSE, TRUE);
 713         border.south_east = cave[1][1].feat;
 714
 715
 716         /* Create terrain of the current area */
 717         generate_area(y, x, FALSE, FALSE);
 718
 719
 720         /* Special boundary walls -- North */
 721         for (i = 0; i < MAX_WID; i++)
 722         {
 723                 cave[0][i].feat = FEAT_PERM_SOLID;
 724                 cave[0][i].mimic = border.north[i];
 725         }
 726
 727         /* Special boundary walls -- South */
 728         for (i = 0; i < MAX_WID; i++)
 729         {
 730                 cave[MAX_HGT - 1][i].feat = FEAT_PERM_SOLID;
 731                 cave[MAX_HGT - 1][i].mimic = border.south[i];
 732         }
 733
 734         /* Special boundary walls -- West */
 735         for (i = 0; i < MAX_HGT; i++)
 736         {
 737                 cave[i][0].feat = FEAT_PERM_SOLID;
 738                 cave[i][0].mimic = border.west[i];
 739         }
 740
 741         /* Special boundary walls -- East */
 742         for (i = 0; i < MAX_HGT; i++)
 743         {
 744                 cave[i][MAX_WID - 1].feat = FEAT_PERM_SOLID;
 745                 cave[i][MAX_WID - 1].mimic = border.east[i];
 746         }
 747
 748         /* North west corner */
 749         cave[0][0].mimic = border.north_west;
 750
 751         /* North east corner */
 752         cave[0][MAX_WID - 1].mimic = border.north_east;
 753
 754         /* South west corner */
 755         cave[MAX_HGT - 1][0].mimic = border.south_west;
 756
 757         /* South east corner */
 758         cave[MAX_HGT - 1][MAX_WID - 1].mimic = border.south_east;
 759
 760
 761         /* Day time */
 762         if ((turn % (20L * TOWN_DAWN)) < ((20L * TOWN_DAWN) / 2))
 763                 daytime = TRUE;
 764         else
 765                 daytime = FALSE;
 766
 767         /* Light up or darken the area */
 768         for (y = 0; y < cur_hgt; y++)
 769         {
 770                 for (x = 0; x < cur_wid; x++)
 771                 {
 772                         /* Get the cave grid */
 773                         c_ptr = &cave[y][x];
 774
 775                         if (daytime)
 776                         {
 777                                 /* Assume lit */
 778                                 c_ptr->info |= (CAVE_GLOW);
 779
 780                                 /* Hack -- Memorize lit grids if allowed */
 781                                 if (view_perma_grids) c_ptr->info |= (CAVE_MARK);
 782                         }
 783                         else
 784                         {
 785                                 /* Darken "boring" features */
 786                                 if ((c_ptr->feat <= FEAT_INVIS) ||
 787                                     ((c_ptr->feat >= FEAT_DEEP_WATER) &&
 788                                         (c_ptr->feat <= FEAT_TREES) &&
 789                                      (c_ptr->feat != FEAT_MUSEUM)) ||
 790                                     (x == 0) || (x == cur_wid-1) ||
 791                                     (y == 0) || (y == cur_hgt-1))
 792                                 {
 793                                         /* Forget the grid */
 794                                         c_ptr->info &= ~(CAVE_GLOW | CAVE_MARK);
 795                                 }
 796                                 else if (c_ptr->feat == FEAT_ENTRANCE)
 797                                 {
 798                                         /* Assume lit */
 799                                         c_ptr->info |= (CAVE_GLOW);
 800
 801                                         /* Hack -- Memorize lit grids if allowed */
 802                                         if (view_perma_grids) c_ptr->info |= (CAVE_MARK);
 803                                 }
 804                         }
 805                 }
 806         }
 807
 808         if (p_ptr->teleport_town)
 809         {
 810                 for (y = 0; y < cur_hgt; y++)
 811                 {
 812                         for (x = 0; x < cur_wid; x++)
 813                         {
 814                                 if (((cave[y][x].feat - FEAT_BLDG_HEAD) == 4) || ((p_ptr->town_num == 1) && ((cave[y][x].feat - FEAT_BLDG_HEAD) == 0)))
 815                                 {
 816                                         if (cave[y][x].m_idx) delete_monster_idx(cave[y][x].m_idx);
 817                                         p_ptr->oldpy = y;
 818                                         p_ptr->oldpx = x;
 819                                 }
 820                         }
 821                 }
 822                 p_ptr->teleport_town = FALSE;
 823         }
 824
 825         else if (p_ptr->leaving_dungeon)
 826         {
 827                 for (y = 0; y < cur_hgt; y++)
 828                 {
 829                         for (x = 0; x < cur_wid; x++)
 830                         {
 831                                 if (cave[y][x].feat == FEAT_ENTRANCE)
 832                                 {
 833                                         if (cave[y][x].m_idx) delete_monster_idx(cave[y][x].m_idx);
 834                                         p_ptr->oldpy = y;
 835                                         p_ptr->oldpx = x;
 836                                 }
 837                         }
 838                 }
 839                 p_ptr->teleport_town = FALSE;
 840         }
 841
 842         player_place(p_ptr->oldpy, p_ptr->oldpx);
 843         p_ptr->leftbldg = FALSE;
 844         /* p_ptr->leaving_dungeon = FALSE;*/
 845
 846         lim = (generate_encounter==TRUE)?40:MIN_M_ALLOC_TN;
 847
 848         /* Make some residents */
 849         for (i = 0; i < lim; i++)
 850         {
 851                 /* Make a resident */
 852                 (void)alloc_monster(generate_encounter ? 0 : 3, (bool)!(generate_encounter || (one_in_(2) && (!p_ptr->town_num))));
 853         }
 854
 855         if(generate_encounter) ambush_flag = TRUE;
 856         generate_encounter = FALSE;
 857
 858         for (i = 0; i < 100; i++)
 859         {
 860                 floor_type[i] = FEAT_FLOOR;
 861                 fill_type[i] = FEAT_WALL_EXTRA;
 862         }
 863
 864         /* Set rewarded quests to finished */
 865         for (i = 0; i < max_quests; i++)
 866         {
 867                 if (quest[i].status == QUEST_STATUS_REWARDED)
 868                         quest[i].status = QUEST_STATUS_FINISHED;
 869         }
 870 }
 871
 872
 873 /*
 874  * Build the wilderness area.
 875  * -DG-
 876  */
 877 void wilderness_gen_small()
 878 {
 879         int i, j;
 880
 881         /* To prevent stupid things */
 882         for (i = 0; i < MAX_WID; i++)
 883         for (j = 0; j < MAX_HGT; j++)
 884         {
 885                 cave[j][i].feat = FEAT_PERM_SOLID;
 886         }
 887
 888         /* Init the wilderness */
 889         process_dungeon_file("w_info_j.txt", 0, 0, max_wild_y, max_wild_x);
 890
 891         /* Fill the map */
 892         for (i = 0; i < max_wild_x; i++)
 893         for (j = 0; j < max_wild_y; j++)
 894         {
 895                 if (wilderness[j][i].town && (wilderness[j][i].town != NO_TOWN))
 896                 {
 897                         cave[j][i].feat = FEAT_TOWN;
 898                         cave[j][i].special = wilderness[j][i].town;
 899                 }
 900                 else if (wilderness[j][i].road) cave[j][i].feat = FEAT_FLOOR;
 901                 else if (wilderness[j][i].entrance && (total_winner || !(d_info[wilderness[j][i].entrance].flags1 & DF1_WINNER)))
 902                 {
 903                         cave[j][i].feat = FEAT_ENTRANCE;
 904                         cave[j][i].special = (byte)wilderness[j][i].entrance;
 905                 }
 906                 else cave[j][i].feat = conv_terrain2feat[wilderness[j][i].terrain];
 907
 908                 cave[j][i].info |= (CAVE_GLOW | CAVE_MARK);
 909         }
 910
 911         cur_hgt = (max_wild_y / SCREEN_HGT + 1) * SCREEN_HGT;
 912         cur_wid = (max_wild_x / SCREEN_WID + 1) * SCREEN_WID;
 913
 914         if (cur_hgt > MAX_HGT) cur_hgt = MAX_HGT;
 915         if (cur_wid > MAX_WID) cur_wid = MAX_WID;
 916
 917         /* Determine number of panels */
 918         max_panel_rows = (cur_hgt / SCREEN_HGT) * 2 - 2;
 919         max_panel_cols = (cur_wid / SCREEN_WID) * 2 - 2;
 920
 921         /* Assume illegal panel */
 922         panel_row = max_panel_rows;
 923         panel_col = max_panel_cols;
 924
 925         /* Place the player */
 926         px = p_ptr->wilderness_x;
 927         py = p_ptr->wilderness_y;
 928
 929         p_ptr->town_num = 0;
 930 }
 931
 932
 933 typedef struct wilderness_grid wilderness_grid;
 934
 935 struct wilderness_grid
 936 {
 937         int             terrain;    /* Terrain type */
 938         int             town;       /* Town number */
 939         s16b    level;          /* Level of the wilderness */
 940         byte    road;       /* Road */
 941         char    name[32];       /* Name of the town/wilderness */
 942 };
 943
 944
 945 static wilderness_grid w_letter[255];
 946
 947
 948 /*
 949  * Parse a sub-file of the "extra info"
 950  */
 951 errr parse_line_wilderness(char *buf, int ymin, int xmin, int ymax, int xmax, int *y, int *x)
 952 {
 953         int i, num;
 954         char *zz[33];
 955
 956
 957         /* Paranoia */
 958         if (!(buf[0] == 'W')) return (PARSE_ERROR_GENERIC);
 959
 960         switch (buf[2])
 961         {
 962                 /* Process "W:F:<letter>:<terrain>:<town>:<road>:<name> */
 963 #ifdef JP
 964         case 'E':
 965                 return 0;
 966         case 'F':
 967         case 'J':
 968 #else
 969         case 'J':
 970                 return 0;
 971         case 'F':
 972         case 'E':
 973 #endif
 974         {
 975                 if ((num = tokenize(buf+4, 6, zz, 0)) > 1)
 976                 {
 977                         int index = zz[0][0];
 978
 979                         if (num > 1)
 980                                 w_letter[index].terrain = atoi(zz[1]);
 981                         else
 982                                 w_letter[index].terrain = 0;
 983
 984                         if (num > 2)
 985                                 w_letter[index].level = atoi(zz[2]);
 986                         else
 987                                 w_letter[index].level = 0;
 988
 989                         if (num > 3)
 990                                 w_letter[index].town = atoi(zz[3]);
 991                         else
 992                                 w_letter[index].town = 0;
 993
 994                         if (num > 4)
 995                                 w_letter[index].road = atoi(zz[4]);
 996                         else
 997                                 w_letter[index].road = 0;
 998
 999                         if (num > 5)
1000                                 strcpy(w_letter[index].name, zz[5]);
1001                         else
1002                                 w_letter[index].name[0] = 0;
1003                 }
1004                 else
1005                 {
1006                                 /* Failure */
1007                         return (PARSE_ERROR_TOO_FEW_ARGUMENTS);
1008                 }
1009
1010                 break;
1011         }
1012
1013         /* Process "W:D:<layout> */
1014         /* Layout of the wilderness */
1015         case 'D':
1016         {
1017                 /* Acquire the text */
1018                 char *s = buf+4;
1019
1020                 /* Length of the text */
1021                 int len = strlen(s);
1022
1023                 for (*x = xmin, i = 0; ((*x < xmax) && (i < len)); (*x)++, s++, i++)
1024                 {
1025                         int idx = s[0];
1026
1027                         wilderness[*y][*x].terrain = w_letter[idx].terrain;
1028
1029                         wilderness[*y][*x].level = w_letter[idx].level;
1030
1031                         wilderness[*y][*x].town = w_letter[idx].town;
1032
1033                         wilderness[*y][*x].road = w_letter[idx].road;
1034
1035                         strcpy(town[w_letter[idx].town].name, w_letter[idx].name);
1036                 }
1037
1038                 (*y)++;
1039
1040                 break;
1041         }
1042
1043         /* Process "W:P:<x>:<y> - starting position in the wilderness */
1044         case 'P':
1045         {
1046                 if ((p_ptr->wilderness_x == 0) &&
1047                     (p_ptr->wilderness_y == 0))
1048                 {
1049                         if (tokenize(buf+4, 2, zz, 0) == 2)
1050                         {
1051                                 p_ptr->wilderness_y = atoi(zz[0]);
1052                                 p_ptr->wilderness_x = atoi(zz[1]);
1053
1054                                 if ((p_ptr->wilderness_x < 1) ||
1055                                     (p_ptr->wilderness_x > max_wild_x) ||
1056                                     (p_ptr->wilderness_y < 1) ||
1057                                     (p_ptr->wilderness_y > max_wild_y))
1058                                 {
1059                                         return (PARSE_ERROR_OUT_OF_BOUNDS);
1060                                 }
1061                         }
1062                         else
1063                         {
1064                                 return (PARSE_ERROR_TOO_FEW_ARGUMENTS);
1065                         }
1066                 }
1067
1068                 break;
1069         }
1070
1071         default:
1072                 /* Failure */
1073                 return (PARSE_ERROR_UNDEFINED_DIRECTIVE);
1074         }
1075
1076         for (i = 1; i < max_d_idx; i++)
1077         {
1078                 if (!d_info[i].maxdepth) continue;
1079                 wilderness[d_info[i].dy][d_info[i].dx].entrance = i;
1080                 if (!wilderness[d_info[i].dy][d_info[i].dx].town)
1081                         wilderness[d_info[i].dy][d_info[i].dx].level = d_info[i].mindepth;
1082         }
1083
1084         /* Success */
1085         return (0);
1086 }
1087
1088
1089 /*
1090  * Generate the random seeds for the wilderness
1091  */
1092 void seed_wilderness(void)
1093 {
1094         int x, y;
1095
1096         /* Init wilderness seeds */
1097         for (x = 0; x < max_wild_x; x++)
1098         {
1099                 for (y = 0; y < max_wild_y; y++)
1100                 {
1101                         wilderness[y][x].seed = rand_int(0x10000000);
1102                         wilderness[y][x].entrance = 0;
1103                 }
1104         }
1105 }
1106
1107
1108 /*
1109  * Pointer to wilderness_type
1110  */
1111 typedef wilderness_type *wilderness_type_ptr;
1112
1113 /*
1114  * Initialize wilderness array
1115  */
1116 errr init_wilderness(void)
1117 {
1118         int i;
1119
1120         /* Allocate the wilderness (two-dimension array) */
1121         C_MAKE(wilderness, max_wild_y, wilderness_type_ptr);
1122         C_MAKE(wilderness[0], max_wild_x * max_wild_y, wilderness_type);
1123
1124         /* Init the other pointers */
1125         for (i = 1; i < max_wild_y; i++)
1126                 wilderness[i] = wilderness[0] + i * max_wild_x;
1127
1128         generate_encounter = FALSE;
1129
1130         return 0;
1131 }
1132
1133
1134 bool change_wild_mode(void)
1135 {
1136         int i;
1137
1138         if (lite_town || vanilla_town)
1139         {
1140 #ifdef JP
1141                 msg_print("¹ÓÌî¤Ê¤ó¤Æ¤Ê¤¤¡£");
1142 #else
1143                 msg_print("No global mal");
1144 #endif
1145                 return FALSE;
1146         }
1147         if (!p_ptr->wild_mode)
1148         {
1149                 for (i = 1; i < m_max; i++)
1150                 {
1151                         monster_type *m_ptr = &m_list[i];
1152
1153                         if (!m_ptr->r_idx) continue;
1154                         if (m_ptr->csleep) continue;
1155                         if (m_ptr->cdis > MAX_SIGHT) continue;
1156                         if (!is_hostile(m_ptr)) continue;
1157 #ifdef JP
1158                         msg_print("Å¨¤¬¤¹¤°¶á¤¯¤Ë¤¤¤ë¤È¤¤Ï¹°è¥Þ¥Ã¥×¤ËÆþ¤ì¤Ê¤¤¡ª");
1159 #else
1160                         msg_print("You cannot enter global map, since there is some monsters nearby!");
1161 #endif
1162                         energy_use = 0;
1163                         return FALSE;
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 }