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  * Fill the arrays of floors and walls in the good proportions
  19  */
  20 void set_floor_and_wall(byte type)
  21 {
  22         static byte cur_type = 255;
  23         int i;
  24
  25         /* Already filled */
  26         if (cur_type == type) return;
  27
  28         cur_type = type;
  29
  30         for (i = 0; i < 100; i++)
  31         {
  32                 int lim1, lim2, lim3;
  33
  34                 lim1 = d_info[type].floor_percent1;
  35                 lim2 = lim1 + d_info[type].floor_percent2;
  36                 lim3 = lim2 + d_info[type].floor_percent3;
  37
  38                 if (i < lim1)
  39                         floor_type[i] = d_info[type].floor1;
  40                 else if (i < lim2)
  41                         floor_type[i] = d_info[type].floor2;
  42                 else if (i < lim3)
  43                         floor_type[i] = d_info[type].floor3;
  44
  45                 lim1 = d_info[type].fill_percent1;
  46                 lim2 = lim1 + d_info[type].fill_percent2;
  47                 lim3 = lim2 + d_info[type].fill_percent3;
  48                 if (i < lim1)
  49                         fill_type[i] = d_info[type].fill_type1;
  50                 else if (i < lim2)
  51                         fill_type[i] = d_info[type].fill_type2;
  52                 else if (i < lim3)
  53                         fill_type[i] = d_info[type].fill_type3;
  54         }
  55 }
  56
  57
  58 /*
  59  * Helper for plasma generation.
  60  */
  61 static void perturb_point_mid(int x1, int x2, int x3, int x4,
  62                           int xmid, int ymid, int rough, int depth_max)
  63 {
  64         /*
  65          * Average the four corners & perturb it a bit.
  66          * tmp is a random int +/- rough
  67          */
  68         int tmp2 = rough*2 + 1;
  69         int tmp = randint1(tmp2) - (rough + 1);
  70
  71         int avg = ((x1 + x2 + x3 + x4) / 4) + tmp;
  72
  73         /* Division always rounds down, so we round up again */
  74         if (((x1 + x2 + x3 + x4) % 4) > 1)
  75                 avg++;
  76
  77         /* Normalize */
  78         if (avg < 0) avg = 0;
  79         if (avg > depth_max) avg = depth_max;
  80
  81         /* Set the new value. */
  82         cave[ymid][xmid].feat = avg;
  83 }
  84
  85
  86 static void perturb_point_end(int x1, int x2, int x3,
  87                           int xmid, int ymid, int rough, int depth_max)
  88 {
  89         /*
  90          * Average the three corners & perturb it a bit.
  91          * tmp is a random int +/- rough
  92          */
  93         int tmp2 = rough * 2 + 1;
  94         int tmp = randint0(tmp2) - rough;
  95
  96         int avg = ((x1 + x2 + x3) / 3) + tmp;
  97
  98         /* Division always rounds down, so we round up again */
  99         if ((x1 + x2 + x3) % 3) avg++;
 100
 101         /* Normalize */
 102         if (avg < 0) avg = 0;
 103         if (avg > depth_max) avg = depth_max;
 104
 105         /* Set the new value. */
 106         cave[ymid][xmid].feat = avg;
 107 }
 108
 109
 110 /*
 111  * A generic function to generate the plasma fractal.
 112  * Note that it uses ``cave_feat'' as temporary storage.
 113  * The values in ``cave_feat'' after this function
 114  * are NOT actual features; They are raw heights which
 115  * need to be converted to features.
 116  */
 117 static void plasma_recursive(int x1, int y1, int x2, int y2,
 118                              int depth_max, int rough)
 119 {
 120         /* Find middle */
 121         int xmid = (x2 - x1) / 2 + x1;
 122         int ymid = (y2 - y1) / 2 + y1;
 123
 124         /* Are we done? */
 125         if (x1 + 1 == x2) return;
 126
 127         perturb_point_mid(cave[y1][x1].feat, cave[y2][x1].feat, cave[y1][x2].feat,
 128                 cave[y2][x2].feat, xmid, ymid, rough, depth_max);
 129
 130         perturb_point_end(cave[y1][x1].feat, cave[y1][x2].feat, cave[ymid][xmid].feat,
 131                 xmid, y1, rough, depth_max);
 132
 133         perturb_point_end(cave[y1][x2].feat, cave[y2][x2].feat, cave[ymid][xmid].feat,
 134                 x2, ymid, rough, depth_max);
 135
 136         perturb_point_end(cave[y2][x2].feat, cave[y2][x1].feat, cave[ymid][xmid].feat,
 137                 xmid, y2, rough, depth_max);
 138
 139         perturb_point_end(cave[y2][x1].feat, cave[y1][x1].feat, cave[ymid][xmid].feat,
 140                 x1, ymid, rough, depth_max);
 141
 142
 143         /* Recurse the four quadrants */
 144         plasma_recursive(x1, y1, xmid, ymid, depth_max, rough);
 145         plasma_recursive(xmid, y1, x2, ymid, depth_max, rough);
 146         plasma_recursive(x1, ymid, xmid, y2, depth_max, rough);
 147         plasma_recursive(xmid, ymid, x2, y2, depth_max, rough);
 148 }
 149
 150
 151 /*
 152  * The default table in terrain level generation.
 153  */
 154 static int terrain_table[MAX_WILDERNESS][18] =
 155 {
 156         /* TERRAIN_EDGE */
 157         {
 158                         FEAT_PERM_SOLID,
 159                         FEAT_PERM_SOLID,
 160                         FEAT_PERM_SOLID,
 161
 162                         FEAT_PERM_SOLID,
 163                         FEAT_PERM_SOLID,
 164                         FEAT_PERM_SOLID,
 165
 166                         FEAT_PERM_SOLID,
 167                         FEAT_PERM_SOLID,
 168                         FEAT_PERM_SOLID,
 169
 170                         FEAT_PERM_SOLID,
 171                         FEAT_PERM_SOLID,
 172                         FEAT_PERM_SOLID,
 173
 174                         FEAT_PERM_SOLID,
 175                         FEAT_PERM_SOLID,
 176                         FEAT_PERM_SOLID,
 177
 178                         FEAT_PERM_SOLID,
 179                         FEAT_PERM_SOLID,
 180                         FEAT_PERM_SOLID,
 181         },
 182         /* TERRAIN_TOWN */
 183         {
 184                         FEAT_FLOOR,
 185                         FEAT_FLOOR,
 186                         FEAT_FLOOR,
 187
 188                         FEAT_FLOOR,
 189                         FEAT_FLOOR,
 190                         FEAT_FLOOR,
 191
 192                         FEAT_FLOOR,
 193                         FEAT_FLOOR,
 194                         FEAT_FLOOR,
 195
 196                         FEAT_FLOOR,
 197                         FEAT_FLOOR,
 198                         FEAT_FLOOR,
 199
 200                         FEAT_FLOOR,
 201                         FEAT_FLOOR,
 202                         FEAT_FLOOR,
 203
 204                         FEAT_FLOOR,
 205                         FEAT_FLOOR,
 206                         FEAT_FLOOR,
 207         },
 208         /* TERRAIN_DEEP_WATER */
 209         {
 210                         FEAT_DEEP_WATER,
 211                         FEAT_DEEP_WATER,
 212                         FEAT_DEEP_WATER,
 213
 214                         FEAT_DEEP_WATER,
 215                         FEAT_DEEP_WATER,
 216                         FEAT_DEEP_WATER,
 217
 218                         FEAT_DEEP_WATER,
 219                         FEAT_DEEP_WATER,
 220                         FEAT_DEEP_WATER,
 221
 222                         FEAT_DEEP_WATER,
 223                         FEAT_DEEP_WATER,
 224                         FEAT_DEEP_WATER,
 225
 226                         FEAT_SHAL_WATER,
 227                         FEAT_SHAL_WATER,
 228                         FEAT_SHAL_WATER,
 229
 230                         FEAT_SHAL_WATER,
 231                         FEAT_SHAL_WATER,
 232                         FEAT_SHAL_WATER,
 233         },
 234         /* TERRAIN_SHALLOW_WATER */
 235         {
 236                         FEAT_DEEP_WATER,
 237                         FEAT_DEEP_WATER,
 238                         FEAT_DEEP_WATER,
 239
 240                         FEAT_SHAL_WATER,
 241                         FEAT_SHAL_WATER,
 242                         FEAT_SHAL_WATER,
 243
 244                         FEAT_SHAL_WATER,
 245                         FEAT_SHAL_WATER,
 246                         FEAT_SHAL_WATER,
 247
 248                         FEAT_SHAL_WATER,
 249                         FEAT_SHAL_WATER,
 250                         FEAT_SHAL_WATER,
 251
 252                         FEAT_SHAL_WATER,
 253                         FEAT_SHAL_WATER,
 254                         FEAT_SHAL_WATER,
 255
 256                         FEAT_FLOOR,
 257                         FEAT_DIRT,
 258                         FEAT_GRASS,
 259         },
 260         /* TERRAIN_SWAMP */
 261         {
 262                         FEAT_FLOOR,
 263                         FEAT_FLOOR,
 264                         FEAT_FLOOR,
 265
 266                         FEAT_SHAL_WATER,
 267                         FEAT_SHAL_WATER,
 268                         FEAT_SHAL_WATER,
 269
 270                         FEAT_SHAL_WATER,
 271                         FEAT_SHAL_WATER,
 272                         FEAT_SHAL_WATER,
 273
 274                         FEAT_GRASS,
 275                         FEAT_GRASS,
 276                         FEAT_GRASS,
 277
 278                         FEAT_GRASS,
 279                         FEAT_DIRT,
 280                         FEAT_DIRT,
 281
 282                         FEAT_DIRT,
 283                         FEAT_DEEP_GRASS,
 284                         FEAT_TREES,
 285         },
 286         /* TERRAIN_DIRT */
 287         {
 288                         FEAT_FLOOR,
 289                         FEAT_FLOOR,
 290                         FEAT_FLOOR,
 291
 292                         FEAT_DIRT,
 293                         FEAT_DIRT,
 294                         FEAT_DIRT,
 295
 296                         FEAT_DIRT,
 297                         FEAT_DIRT,
 298                         FEAT_DIRT,
 299
 300                         FEAT_DIRT,
 301                         FEAT_DIRT,
 302                         FEAT_DIRT,
 303
 304                         FEAT_DIRT,
 305                         FEAT_FLOWER,
 306                         FEAT_DEEP_GRASS,
 307
 308                         FEAT_GRASS,
 309                         FEAT_TREES,
 310                         FEAT_TREES,
 311         },
 312         /* TERRAIN_GRASS */
 313         {
 314                         FEAT_FLOOR,
 315                         FEAT_FLOOR,
 316                         FEAT_DIRT,
 317
 318                         FEAT_DIRT,
 319                         FEAT_GRASS,
 320                         FEAT_GRASS,
 321
 322                         FEAT_GRASS,
 323                         FEAT_GRASS,
 324                         FEAT_GRASS,
 325
 326                         FEAT_GRASS,
 327                         FEAT_GRASS,
 328                         FEAT_GRASS,
 329
 330                         FEAT_GRASS,
 331                         FEAT_FLOWER,
 332                         FEAT_DEEP_GRASS,
 333
 334                         FEAT_DEEP_GRASS,
 335                         FEAT_TREES,
 336                         FEAT_TREES,
 337         },
 338         /* TERRAIN_TREES */
 339         {
 340                         FEAT_FLOOR,
 341                         FEAT_FLOOR,
 342                         FEAT_DIRT,
 343
 344                         FEAT_TREES,
 345                         FEAT_TREES,
 346                         FEAT_TREES,
 347
 348                         FEAT_TREES,
 349                         FEAT_TREES,
 350                         FEAT_TREES,
 351
 352                         FEAT_TREES,
 353                         FEAT_TREES,
 354                         FEAT_TREES,
 355
 356                         FEAT_TREES,
 357                         FEAT_TREES,
 358                         FEAT_DEEP_GRASS,
 359
 360                         FEAT_DEEP_GRASS,
 361                         FEAT_GRASS,
 362                         FEAT_GRASS,
 363         },
 364         /* TERRAIN_DESERT */
 365         {
 366                         FEAT_FLOOR,
 367                         FEAT_FLOOR,
 368                         FEAT_DIRT,
 369
 370                         FEAT_DIRT,
 371                         FEAT_DIRT,
 372                         FEAT_DIRT,
 373
 374                         FEAT_DIRT,
 375                         FEAT_DIRT,
 376                         FEAT_DIRT,
 377
 378                         FEAT_DIRT,
 379                         FEAT_DIRT,
 380                         FEAT_DIRT,
 381
 382                         FEAT_DIRT,
 383                         FEAT_DIRT,
 384                         FEAT_DIRT,
 385
 386                         FEAT_GRASS,
 387                         FEAT_GRASS,
 388                         FEAT_GRASS,
 389         },
 390         /* TERRAIN_SHALLOW_LAVA */
 391         {
 392                         FEAT_SHAL_LAVA,
 393                         FEAT_SHAL_LAVA,
 394                         FEAT_SHAL_LAVA,
 395
 396                         FEAT_SHAL_LAVA,
 397                         FEAT_SHAL_LAVA,
 398                         FEAT_SHAL_LAVA,
 399
 400                         FEAT_SHAL_LAVA,
 401                         FEAT_SHAL_LAVA,
 402                         FEAT_SHAL_LAVA,
 403
 404                         FEAT_SHAL_LAVA,
 405                         FEAT_SHAL_LAVA,
 406                         FEAT_SHAL_LAVA,
 407
 408                         FEAT_SHAL_LAVA,
 409                         FEAT_SHAL_LAVA,
 410                         FEAT_DEEP_LAVA,
 411
 412                         FEAT_DEEP_LAVA,
 413                         FEAT_DEEP_LAVA,
 414                         FEAT_MOUNTAIN,
 415         },
 416         /* TERRAIN_DEEP_LAVA */
 417         {
 418                         FEAT_DIRT,
 419                         FEAT_DIRT,
 420                         FEAT_DIRT,
 421
 422                         FEAT_SHAL_LAVA,
 423                         FEAT_SHAL_LAVA,
 424                         FEAT_SHAL_LAVA,
 425
 426                         FEAT_DEEP_LAVA,
 427                         FEAT_DEEP_LAVA,
 428                         FEAT_DEEP_LAVA,
 429
 430                         FEAT_DEEP_LAVA,
 431                         FEAT_DEEP_LAVA,
 432                         FEAT_DEEP_LAVA,
 433
 434                         FEAT_DEEP_LAVA,
 435                         FEAT_DEEP_LAVA,
 436                         FEAT_DEEP_LAVA,
 437
 438                         FEAT_DEEP_LAVA,
 439                         FEAT_MOUNTAIN,
 440                         FEAT_MOUNTAIN,
 441         },
 442         /* TERRAIN_MOUNTAIN */
 443         {
 444                         FEAT_FLOOR,
 445                         FEAT_DEEP_GRASS,
 446                         FEAT_GRASS,
 447
 448                         FEAT_GRASS,
 449                         FEAT_DIRT,
 450                         FEAT_DIRT,
 451
 452                         FEAT_TREES,
 453                         FEAT_TREES,
 454                         FEAT_MOUNTAIN,
 455
 456                         FEAT_MOUNTAIN,
 457                         FEAT_MOUNTAIN,
 458                         FEAT_MOUNTAIN,
 459
 460                         FEAT_MOUNTAIN,
 461                         FEAT_MOUNTAIN,
 462                         FEAT_MOUNTAIN,
 463
 464                         FEAT_MOUNTAIN,
 465                         FEAT_MOUNTAIN,
 466                         FEAT_MOUNTAIN,
 467         },
 468
 469 };
 470
 471
 472 static void generate_wilderness_area(int terrain, u32b seed, bool border, bool corner)
 473 {
 474         int x1, y1;
 475         int table_size = sizeof(terrain_table[0]) / sizeof(int);
 476         int roughness = 1; /* The roughness of the level. */
 477
 478         /* The outer wall is easy */
 479         if (terrain == TERRAIN_EDGE)
 480         {
 481                 /* Create level background */
 482                 for (y1 = 0; y1 < MAX_HGT; y1++)
 483                 {
 484                         for (x1 = 0; x1 < MAX_WID; x1++)
 485                         {
 486                                 cave[y1][x1].feat = FEAT_PERM_SOLID;
 487                         }
 488                 }
 489
 490                 /* We are done already */
 491                 return;
 492         }
 493
 494
 495         /* Hack -- Use the "simple" RNG */
 496         Rand_quick = TRUE;
 497
 498         /* Hack -- Induce consistant town layout */
 499         Rand_value = seed;
 500
 501         if (!corner)
 502         {
 503                 /* Create level background */
 504                 for (y1 = 0; y1 < MAX_HGT; y1++)
 505                 {
 506                         for (x1 = 0; x1 < MAX_WID; x1++)
 507                         {
 508                                 cave[y1][x1].feat = table_size / 2;
 509                         }
 510                 }
 511         }
 512
 513         /*
 514          * Initialize the four corners
 515          * ToDo: calculate the medium height of the adjacent
 516          * terrains for every corner.
 517          */
 518         cave[1][1].feat = (byte)randint0(table_size);
 519         cave[MAX_HGT-2][1].feat = (byte)randint0(table_size);
 520         cave[1][MAX_WID-2].feat = (byte)randint0(table_size);
 521         cave[MAX_HGT-2][MAX_WID-2].feat = (byte)randint0(table_size);
 522
 523         if (!corner)
 524         {
 525                 /* x1, y1, x2, y2, num_depths, roughness */
 526                 plasma_recursive(1, 1, MAX_WID-2, MAX_HGT-2, table_size-1, roughness);
 527         }
 528
 529         /* Use the complex RNG */
 530         Rand_quick = FALSE;
 531
 532         for (y1 = 1; y1 < MAX_HGT-1; y1++)
 533         {
 534                 for (x1 = 1; x1 < MAX_WID-1; x1++)
 535                 {
 536                         cave[y1][x1].feat = terrain_table[terrain][cave[y1][x1].feat];
 537                 }
 538         }
 539 }
 540
 541
 542
 543 /*
 544  * Load a town or generate a terrain level using "plasma" fractals.
 545  *
 546  * x and y are the coordinates of the area in the wilderness.
 547  * Border and corner are optimization flags to speed up the
 548  * generation of the fractal terrain.
 549  * If border is set then only the border of the terrain should
 550  * be generated (for initializing the border structure).
 551  * If corner is set then only the corners of the area are needed.
 552  */
 553 static void generate_area(int y, int x, bool border, bool corner)
 554 {
 555         int x1, y1;
 556
 557         /* Number of the town (if any) */
 558         p_ptr->town_num = wilderness[y][x].town;
 559
 560         /* Set the base level */
 561         base_level = wilderness[y][x].level;
 562
 563         /* Set the dungeon level */
 564         dun_level = 0;
 565
 566         /* Set the monster generation level */
 567         monster_level = base_level;
 568
 569         /* Set the object generation level */
 570         object_level = base_level;
 571
 572
 573         /* Create the town */
 574         if (p_ptr->town_num)
 575         {
 576                 /* Reset the buildings */
 577                 init_buildings();
 578
 579                 /* Initialize the town */
 580                 if (border | corner)
 581                         init_flags = INIT_CREATE_DUNGEON | INIT_ONLY_FEATURES;
 582                 else
 583                         init_flags = INIT_CREATE_DUNGEON;
 584
 585                 process_dungeon_file("t_info.txt", 0, 0, MAX_HGT, MAX_WID);
 586
 587                 if (!corner && !border) p_ptr->visit |= (1L << (p_ptr->town_num - 1));
 588         }
 589         else
 590         {
 591                 int terrain = wilderness[y][x].terrain;
 592                 u32b seed = wilderness[y][x].seed;
 593
 594                 generate_wilderness_area(terrain, seed, border, corner);
 595         }
 596
 597         if (!corner && !wilderness[y][x].town)
 598         {
 599                 /*
 600                  * Place roads in the wilderness
 601                  * ToDo: make the road a bit more interresting
 602                  */
 603                 if (wilderness[y][x].road)
 604                 {
 605                         cave[MAX_HGT/2][MAX_WID/2].feat = FEAT_FLOOR;
 606
 607                         if (wilderness[y-1][x].road)
 608                         {
 609                                 /* North road */
 610                                 for (y1 = 1; y1 < MAX_HGT/2; y1++)
 611                                 {
 612                                         x1 = MAX_WID/2;
 613                                         cave[y1][x1].feat = FEAT_FLOOR;
 614                                 }
 615                         }
 616
 617                         if (wilderness[y+1][x].road)
 618                         {
 619                                 /* North road */
 620                                 for (y1 = MAX_HGT/2; y1 < MAX_HGT - 1; y1++)
 621                                 {
 622                                         x1 = MAX_WID/2;
 623                                         cave[y1][x1].feat = FEAT_FLOOR;
 624                                 }
 625                         }
 626
 627                         if (wilderness[y][x+1].road)
 628                         {
 629                                 /* East road */
 630                                 for (x1 = MAX_WID/2; x1 < MAX_WID - 1; x1++)
 631                                 {
 632                                         y1 = MAX_HGT/2;
 633                                         cave[y1][x1].feat = FEAT_FLOOR;
 634                                 }
 635                         }
 636
 637                         if (wilderness[y][x-1].road)
 638                         {
 639                                 /* West road */
 640                                 for (x1 = 1; x1 < MAX_WID/2; x1++)
 641                                 {
 642                                         y1 = MAX_HGT/2;
 643                                         cave[y1][x1].feat = FEAT_FLOOR;
 644                                 }
 645                         }
 646                 }
 647         }
 648
 649         if (wilderness[y][x].entrance && !wilderness[y][x].town && (p_ptr->total_winner || !(d_info[wilderness[y][x].entrance].flags1 & DF1_WINNER)))
 650         {
 651                 int dy, dx;
 652
 653                 /* Hack -- Use the "simple" RNG */
 654                 Rand_quick = TRUE;
 655
 656                 /* Hack -- Induce consistant town layout */
 657                 Rand_value = wilderness[y][x].seed;
 658
 659                 dy = rand_range(6, cur_hgt - 6);
 660                 dx = rand_range(6, cur_wid - 6);
 661
 662                 cave[dy][dx].feat = FEAT_ENTRANCE;
 663                 cave[dy][dx].special = (byte)wilderness[y][x].entrance;
 664
 665                 /* Use the complex RNG */
 666                 Rand_quick = FALSE;
 667         }
 668 }
 669
 670
 671 /*
 672  * Border of the wilderness area
 673  */
 674 static border_type border;
 675
 676
 677 /*
 678  * Build the wilderness area outside of the town.
 679  */
 680 void wilderness_gen(void)
 681 {
 682         int i, y, x, lim;
 683         cave_type *c_ptr;
 684
 685         /* Big town */
 686         cur_hgt = MAX_HGT;
 687         cur_wid = MAX_WID;
 688
 689         /* Assume illegal panel */
 690         panel_row_min = cur_hgt;
 691         panel_col_min = cur_wid;
 692
 693         /* Init the wilderness */
 694
 695         process_dungeon_file("w_info.txt", 0, 0, max_wild_y, max_wild_x);
 696
 697         x = p_ptr->wilderness_x;
 698         y = p_ptr->wilderness_y;
 699
 700         /* Prepare allocation table */
 701         get_mon_num_prep(get_monster_hook(), NULL);
 702
 703         /* North border */
 704         generate_area(y - 1, x, TRUE, FALSE);
 705
 706         for (i = 1; i < MAX_WID - 1; i++)
 707         {
 708                 border.north[i] = cave[MAX_HGT - 2][i].feat;
 709         }
 710
 711         /* South border */
 712         generate_area(y + 1, x, TRUE, FALSE);
 713
 714         for (i = 1; i < MAX_WID - 1; i++)
 715         {
 716                 border.south[i] = cave[1][i].feat;
 717         }
 718
 719         /* West border */
 720         generate_area(y, x - 1, TRUE, FALSE);
 721
 722         for (i = 1; i < MAX_HGT - 1; i++)
 723         {
 724                 border.west[i] = cave[i][MAX_WID - 2].feat;
 725         }
 726
 727         /* East border */
 728         generate_area(y, x + 1, TRUE, FALSE);
 729
 730         for (i = 1; i < MAX_HGT - 1; i++)
 731         {
 732                 border.east[i] = cave[i][1].feat;
 733         }
 734
 735         /* North west corner */
 736         generate_area(y - 1, x - 1, FALSE, TRUE);
 737         border.north_west = cave[MAX_HGT - 2][MAX_WID - 2].feat;
 738
 739         /* North east corner */
 740         generate_area(y - 1, x + 1, FALSE, TRUE);
 741         border.north_east = cave[MAX_HGT - 2][1].feat;
 742
 743         /* South west corner */
 744         generate_area(y + 1, x - 1, FALSE, TRUE);
 745         border.south_west = cave[1][MAX_WID - 2].feat;
 746
 747         /* South east corner */
 748         generate_area(y + 1, x + 1, FALSE, TRUE);
 749         border.south_east = cave[1][1].feat;
 750
 751
 752         /* Create terrain of the current area */
 753         generate_area(y, x, FALSE, FALSE);
 754
 755
 756         /* Special boundary walls -- North */
 757         for (i = 0; i < MAX_WID; i++)
 758         {
 759                 cave[0][i].feat = FEAT_PERM_SOLID;
 760                 cave[0][i].mimic = border.north[i];
 761         }
 762
 763         /* Special boundary walls -- South */
 764         for (i = 0; i < MAX_WID; i++)
 765         {
 766                 cave[MAX_HGT - 1][i].feat = FEAT_PERM_SOLID;
 767                 cave[MAX_HGT - 1][i].mimic = border.south[i];
 768         }
 769
 770         /* Special boundary walls -- West */
 771         for (i = 0; i < MAX_HGT; i++)
 772         {
 773                 cave[i][0].feat = FEAT_PERM_SOLID;
 774                 cave[i][0].mimic = border.west[i];
 775         }
 776
 777         /* Special boundary walls -- East */
 778         for (i = 0; i < MAX_HGT; i++)
 779         {
 780                 cave[i][MAX_WID - 1].feat = FEAT_PERM_SOLID;
 781                 cave[i][MAX_WID - 1].mimic = border.east[i];
 782         }
 783
 784         /* North west corner */
 785         cave[0][0].mimic = border.north_west;
 786
 787         /* North east corner */
 788         cave[0][MAX_WID - 1].mimic = border.north_east;
 789
 790         /* South west corner */
 791         cave[MAX_HGT - 1][0].mimic = border.south_west;
 792
 793         /* South east corner */
 794         cave[MAX_HGT - 1][MAX_WID - 1].mimic = border.south_east;
 795
 796         /* Light up or darken the area */
 797         for (y = 0; y < cur_hgt; y++)
 798         {
 799                 for (x = 0; x < cur_wid; x++)
 800                 {
 801                         /* Get the cave grid */
 802                         c_ptr = &cave[y][x];
 803
 804                         if (is_daytime())
 805                         {
 806                                 /* Assume lit */
 807                                 c_ptr->info |= (CAVE_GLOW);
 808
 809                                 /* Hack -- Memorize lit grids if allowed */
 810                                 if (view_perma_grids) c_ptr->info |= (CAVE_MARK);
 811                         }
 812                         else
 813                         {
 814                                 /* Darken "boring" features */
 815                                 if ((c_ptr->feat <= FEAT_INVIS) ||
 816                                     ((c_ptr->feat >= FEAT_DEEP_WATER) &&
 817                                         (c_ptr->feat <= FEAT_MOUNTAIN) &&
 818                                      (c_ptr->feat != FEAT_MUSEUM)) ||
 819                                     (x == 0) || (x == cur_wid-1) ||
 820                                     (y == 0) || (y == cur_hgt-1))
 821                                 {
 822                                         /* Forget the grid */
 823                                         c_ptr->info &= ~(CAVE_GLOW | CAVE_MARK);
 824                                 }
 825                                 else if (c_ptr->feat == FEAT_ENTRANCE)
 826                                 {
 827                                         /* Assume lit */
 828                                         c_ptr->info |= (CAVE_GLOW);
 829
 830                                         /* Hack -- Memorize lit grids if allowed */
 831                                         if (view_perma_grids) c_ptr->info |= (CAVE_MARK);
 832                                 }
 833                         }
 834                 }
 835         }
 836
 837         if (p_ptr->teleport_town)
 838         {
 839                 for (y = 0; y < cur_hgt; y++)
 840                 {
 841                         for (x = 0; x < cur_wid; x++)
 842                         {
 843                                 if (((cave[y][x].feat - FEAT_BLDG_HEAD) == 4) || ((p_ptr->town_num == 1) && ((cave[y][x].feat - FEAT_BLDG_HEAD) == 0)))
 844                                 {
 845                                         if (cave[y][x].m_idx) delete_monster_idx(cave[y][x].m_idx);
 846                                         p_ptr->oldpy = y;
 847                                         p_ptr->oldpx = x;
 848                                 }
 849                         }
 850                 }
 851                 p_ptr->teleport_town = FALSE;
 852         }
 853
 854         else if (p_ptr->leaving_dungeon)
 855         {
 856                 for (y = 0; y < cur_hgt; y++)
 857                 {
 858                         for (x = 0; x < cur_wid; x++)
 859                         {
 860                                 if (cave[y][x].feat == FEAT_ENTRANCE)
 861                                 {
 862                                         if (cave[y][x].m_idx) delete_monster_idx(cave[y][x].m_idx);
 863                                         p_ptr->oldpy = y;
 864                                         p_ptr->oldpx = x;
 865                                 }
 866                         }
 867                 }
 868                 p_ptr->teleport_town = FALSE;
 869         }
 870
 871         player_place(p_ptr->oldpy, p_ptr->oldpx);
 872         p_ptr->leftbldg = FALSE;
 873         /* p_ptr->leaving_dungeon = FALSE;*/
 874
 875         lim = (generate_encounter==TRUE)?40:MIN_M_ALLOC_TN;
 876
 877         /* Make some residents */
 878         for (i = 0; i < lim; i++)
 879         {
 880                 u32b mode = 0;
 881
 882                 if (!(generate_encounter || (one_in_(2) && (!p_ptr->town_num))))
 883                         mode |= PM_ALLOW_SLEEP;
 884
 885                 /* Make a resident */
 886                 (void)alloc_monster(generate_encounter ? 0 : 3, mode);
 887         }
 888
 889         if(generate_encounter) ambush_flag = TRUE;
 890         generate_encounter = FALSE;
 891
 892         /* Fill the arrays of floors and walls in the good proportions */
 893         set_floor_and_wall(0);
 894
 895         /* Set rewarded quests to finished */
 896         for (i = 0; i < max_quests; i++)
 897         {
 898                 if (quest[i].status == QUEST_STATUS_REWARDED)
 899                         quest[i].status = QUEST_STATUS_FINISHED;
 900         }
 901 }
 902
 903
 904 /*
 905  * Build the wilderness area.
 906  * -DG-
 907  */
 908 void wilderness_gen_small()
 909 {
 910         int i, j;
 911
 912         /* To prevent stupid things */
 913         for (i = 0; i < MAX_WID; i++)
 914         for (j = 0; j < MAX_HGT; j++)
 915         {
 916                 cave[j][i].feat = FEAT_PERM_SOLID;
 917         }
 918
 919         /* Init the wilderness */
 920         process_dungeon_file("w_info.txt", 0, 0, max_wild_y, max_wild_x);
 921
 922         /* Fill the map */
 923         for (i = 0; i < max_wild_x; i++)
 924         for (j = 0; j < max_wild_y; j++)
 925         {
 926                 if (wilderness[j][i].town && (wilderness[j][i].town != NO_TOWN))
 927                 {
 928                         cave[j][i].feat = FEAT_TOWN;
 929                         cave[j][i].special = wilderness[j][i].town;
 930                 }
 931                 else if (wilderness[j][i].road) cave[j][i].feat = FEAT_FLOOR;
 932                 else if (wilderness[j][i].entrance && (p_ptr->total_winner || !(d_info[wilderness[j][i].entrance].flags1 & DF1_WINNER)))
 933                 {
 934                         cave[j][i].feat = FEAT_ENTRANCE;
 935                         cave[j][i].special = (byte)wilderness[j][i].entrance;
 936                 }
 937                 else cave[j][i].feat = conv_terrain2feat[wilderness[j][i].terrain];
 938
 939                 cave[j][i].info |= (CAVE_GLOW | CAVE_MARK);
 940         }
 941
 942         cur_hgt = (s16b) max_wild_y;
 943         cur_wid = (s16b) max_wild_x;
 944
 945         if (cur_hgt > MAX_HGT) cur_hgt = MAX_HGT;
 946         if (cur_wid > MAX_WID) cur_wid = MAX_WID;
 947
 948         /* Assume illegal panel */
 949         panel_row_min = cur_hgt;
 950         panel_col_min = cur_wid;
 951
 952         /* Place the player */
 953         px = p_ptr->wilderness_x;
 954         py = p_ptr->wilderness_y;
 955
 956         p_ptr->town_num = 0;
 957 }
 958
 959
 960 typedef struct wilderness_grid wilderness_grid;
 961
 962 struct wilderness_grid
 963 {
 964         int             terrain;    /* Terrain type */
 965         int             town;       /* Town number */
 966         s16b    level;          /* Level of the wilderness */
 967         byte    road;       /* Road */
 968         char    name[32];       /* Name of the town/wilderness */
 969 };
 970
 971
 972 static wilderness_grid w_letter[255];
 973
 974
 975 /*
 976  * Parse a sub-file of the "extra info"
 977  */
 978 errr parse_line_wilderness(char *buf, int ymin, int xmin, int ymax, int xmax, int *y, int *x)
 979 {
 980         int i, num;
 981         char *zz[33];
 982
 983
 984         /* Paranoia */
 985         if (!(buf[0] == 'W')) return (PARSE_ERROR_GENERIC);
 986
 987         switch (buf[2])
 988         {
 989                 /* Process "W:F:<letter>:<terrain>:<town>:<road>:<name> */
 990 #ifdef JP
 991         case 'E':
 992                 return 0;
 993         case 'F':
 994         case 'J':
 995 #else
 996         case 'J':
 997                 return 0;
 998         case 'F':
 999         case 'E':
1000 #endif
1001         {
1002                 if ((num = tokenize(buf+4, 6, zz, 0)) > 1)
1003                 {
1004                         int index = zz[0][0];
1005
1006                         if (num > 1)
1007                                 w_letter[index].terrain = atoi(zz[1]);
1008                         else
1009                                 w_letter[index].terrain = 0;
1010
1011                         if (num > 2)
1012                                 w_letter[index].level = atoi(zz[2]);
1013                         else
1014                                 w_letter[index].level = 0;
1015
1016                         if (num > 3)
1017                                 w_letter[index].town = atoi(zz[3]);
1018                         else
1019                                 w_letter[index].town = 0;
1020
1021                         if (num > 4)
1022                                 w_letter[index].road = atoi(zz[4]);
1023                         else
1024                                 w_letter[index].road = 0;
1025
1026                         if (num > 5)
1027                                 strcpy(w_letter[index].name, zz[5]);
1028                         else
1029                                 w_letter[index].name[0] = 0;
1030                 }
1031                 else
1032                 {
1033                                 /* Failure */
1034                         return (PARSE_ERROR_TOO_FEW_ARGUMENTS);
1035                 }
1036
1037                 break;
1038         }
1039
1040         /* Process "W:D:<layout> */
1041         /* Layout of the wilderness */
1042         case 'D':
1043         {
1044                 /* Acquire the text */
1045                 char *s = buf+4;
1046
1047                 /* Length of the text */
1048                 int len = strlen(s);
1049
1050                 for (*x = xmin, i = 0; ((*x < xmax) && (i < len)); (*x)++, s++, i++)
1051                 {
1052                         int idx = s[0];
1053
1054                         wilderness[*y][*x].terrain = w_letter[idx].terrain;
1055
1056                         wilderness[*y][*x].level = w_letter[idx].level;
1057
1058                         wilderness[*y][*x].town = w_letter[idx].town;
1059
1060                         wilderness[*y][*x].road = w_letter[idx].road;
1061
1062                         strcpy(town[w_letter[idx].town].name, w_letter[idx].name);
1063                 }
1064
1065                 (*y)++;
1066
1067                 break;
1068         }
1069
1070         /* Process "W:P:<x>:<y> - starting position in the wilderness */
1071         case 'P':
1072         {
1073                 if ((p_ptr->wilderness_x == 0) &&
1074                     (p_ptr->wilderness_y == 0))
1075                 {
1076                         if (tokenize(buf+4, 2, zz, 0) == 2)
1077                         {
1078                                 p_ptr->wilderness_y = atoi(zz[0]);
1079                                 p_ptr->wilderness_x = atoi(zz[1]);
1080
1081                                 if ((p_ptr->wilderness_x < 1) ||
1082                                     (p_ptr->wilderness_x > max_wild_x) ||
1083                                     (p_ptr->wilderness_y < 1) ||
1084                                     (p_ptr->wilderness_y > max_wild_y))
1085                                 {
1086                                         return (PARSE_ERROR_OUT_OF_BOUNDS);
1087                                 }
1088                         }
1089                         else
1090                         {
1091                                 return (PARSE_ERROR_TOO_FEW_ARGUMENTS);
1092                         }
1093                 }
1094
1095                 break;
1096         }
1097
1098         default:
1099                 /* Failure */
1100                 return (PARSE_ERROR_UNDEFINED_DIRECTIVE);
1101         }
1102
1103         for (i = 1; i < max_d_idx; i++)
1104         {
1105                 if (!d_info[i].maxdepth) continue;
1106                 wilderness[d_info[i].dy][d_info[i].dx].entrance = i;
1107                 if (!wilderness[d_info[i].dy][d_info[i].dx].town)
1108                         wilderness[d_info[i].dy][d_info[i].dx].level = d_info[i].mindepth;
1109         }
1110
1111         /* Success */
1112         return (0);
1113 }
1114
1115
1116 /*
1117  * Generate the random seeds for the wilderness
1118  */
1119 void seed_wilderness(void)
1120 {
1121         int x, y;
1122
1123         /* Init wilderness seeds */
1124         for (x = 0; x < max_wild_x; x++)
1125         {
1126                 for (y = 0; y < max_wild_y; y++)
1127                 {
1128                         wilderness[y][x].seed = randint0(0x10000000);
1129                         wilderness[y][x].entrance = 0;
1130                 }
1131         }
1132 }
1133
1134
1135 /*
1136  * Pointer to wilderness_type
1137  */
1138 typedef wilderness_type *wilderness_type_ptr;
1139
1140 /*
1141  * Initialize wilderness array
1142  */
1143 errr init_wilderness(void)
1144 {
1145         int i;
1146
1147         /* Allocate the wilderness (two-dimension array) */
1148         C_MAKE(wilderness, max_wild_y, wilderness_type_ptr);
1149         C_MAKE(wilderness[0], max_wild_x * max_wild_y, wilderness_type);
1150
1151         /* Init the other pointers */
1152         for (i = 1; i < max_wild_y; i++)
1153                 wilderness[i] = wilderness[0] + i * max_wild_x;
1154
1155         generate_encounter = FALSE;
1156
1157         return 0;
1158 }
1159
1160
1161 bool change_wild_mode(void)
1162 {
1163         int i;
1164         bool have_pet = FALSE;
1165
1166         if (lite_town || vanilla_town)
1167         {
1168 #ifdef JP
1169                 msg_print("¹ÓÌî¤Ê¤ó¤Æ¤Ê¤¤¡£");
1170 #else
1171                 msg_print("No global mal");
1172 #endif
1173                 return FALSE;
1174         }
1175         if (!p_ptr->wild_mode)
1176         {
1177                 for (i = 1; i < m_max; i++)
1178                 {
1179                         monster_type *m_ptr = &m_list[i];
1180
1181                         if (!m_ptr->r_idx) continue;
1182                         if (is_pet(m_ptr) && i != p_ptr->riding) have_pet = TRUE;
1183                         if (m_ptr->csleep) continue;
1184                         if (m_ptr->cdis > MAX_SIGHT) continue;
1185                         if (!is_hostile(m_ptr)) continue;
1186 #ifdef JP
1187                         msg_print("Å¨¤¬¤¹¤°¶á¤¯¤Ë¤¤¤ë¤È¤¤Ï¹°è¥Þ¥Ã¥×¤ËÆþ¤ì¤Ê¤¤¡ª");
1188 #else
1189                         msg_print("You cannot enter global map, since there is some monsters nearby!");
1190 #endif
1191                         energy_use = 0;
1192                         return FALSE;
1193                 }
1194
1195                 if (have_pet)
1196                 {
1197 #ifdef JP
1198                         if(!get_check_strict("¥Ú¥Ã¥È¤òÃÖ¤¤¤Æ¹°è¥Þ¥Ã¥×¤ËÆþ¤ê¤Þ¤¹¤«¡©", CHECK_OKAY_CANCEL))
1199 #else
1200                         if(!get_check_strict("Do you leave your pets behind? ", CHECK_OKAY_CANCEL))
1201 #endif
1202                         {
1203                                 energy_use = 0;
1204                                 return FALSE;
1205                         }
1206                 }
1207
1208                 energy_use = 1000;
1209         }
1210
1211         set_action(ACTION_NONE);
1212
1213         p_ptr->wild_mode = !p_ptr->wild_mode;
1214
1215         /* Leaving */
1216         p_ptr->leaving = TRUE;
1217
1218         return TRUE;
1219 }