src/wild.c

   1 /* File: wild.c */
   2
   3 /*
   4  * Copyright (c) 1997 Ben Harrison, James E. Wilson, Robert A. Koeneke,
   5  * Robert Ruehlmann
   6  *
   7  * This software may be copied and distributed for educational, research,
   8  * and not for profit purposes provided that this copyright and statement
   9  * are included in all such copies.  Other copyrights may also apply.
  10  */
  11
  12 /* Purpose: Wilderness generation */
  13
  14 #include "angband.h"
  15
  16
  17 static void set_floor_and_wall_aux(s16b feat_type[100], feat_prob prob[DUNGEON_FEAT_PROB_NUM])
  18 {
  19         int lim[DUNGEON_FEAT_PROB_NUM], cur = 0, i;
  20
  21         lim[0] = prob[0].percent;
  22         for (i = 1; i < DUNGEON_FEAT_PROB_NUM; i++) lim[i] = lim[i - 1] + prob[i].percent;
  23
  24         /* Paranoia */
  25         if (lim[DUNGEON_FEAT_PROB_NUM - 1] < 100) lim[DUNGEON_FEAT_PROB_NUM - 1] = 100;
  26
  27         for (i = 0; i < 100; i++)
  28         {
  29                 while (i == lim[cur]) cur++;
  30                 feat_type[i] = prob[cur].feat;
  31         }
  32 }
  33
  34 /*
  35  * Fill the arrays of floors and walls in the good proportions
  36  */
  37 void set_floor_and_wall(byte type)
  38 {
  39         static byte cur_type = 255;
  40         dungeon_info_type *d_ptr;
  41
  42         /* Already filled */
  43         if (cur_type == type) return;
  44
  45         cur_type = type;
  46         d_ptr = &d_info[type];
  47
  48         set_floor_and_wall_aux(floor_type, d_ptr->floor);
  49         set_floor_and_wall_aux(fill_type, d_ptr->fill);
  50
  51         feat_wall_outer = d_ptr->outer_wall;
  52         feat_wall_inner = d_ptr->inner_wall;
  53         feat_wall_solid = d_ptr->outer_wall;
  54 }
  55
  56
  57 /*
  58  * Helper for plasma generation.
  59  */
  60 static void perturb_point_mid(int x1, int x2, int x3, int x4,
  61                           int xmid, int ymid, int rough, int depth_max)
  62 {
  63         /*
  64          * Average the four corners & perturb it a bit.
  65          * tmp is a random int +/- rough
  66          */
  67         int tmp2 = rough*2 + 1;
  68         int tmp = randint1(tmp2) - (rough + 1);
  69
  70         int avg = ((x1 + x2 + x3 + x4) / 4) + tmp;
  71
  72         /* Division always rounds down, so we round up again */
  73         if (((x1 + x2 + x3 + x4) % 4) > 1)
  74                 avg++;
  75
  76         /* Normalize */
  77         if (avg < 0) avg = 0;
  78         if (avg > depth_max) avg = depth_max;
  79
  80         /* Set the new value. */
  81         cave[ymid][xmid].feat = avg;
  82 }
  83
  84
  85 static void perturb_point_end(int x1, int x2, int x3,
  86                           int xmid, int ymid, int rough, int depth_max)
  87 {
  88         /*
  89          * Average the three corners & perturb it a bit.
  90          * tmp is a random int +/- rough
  91          */
  92         int tmp2 = rough * 2 + 1;
  93         int tmp = randint0(tmp2) - rough;
  94
  95         int avg = ((x1 + x2 + x3) / 3) + tmp;
  96
  97         /* Division always rounds down, so we round up again */
  98         if ((x1 + x2 + x3) % 3) avg++;
  99
 100         /* Normalize */
 101         if (avg < 0) avg = 0;
 102         if (avg > depth_max) avg = depth_max;
 103
 104         /* Set the new value. */
 105         cave[ymid][xmid].feat = avg;
 106 }
 107
 108
 109 /*
 110  * A generic function to generate the plasma fractal.
 111  * Note that it uses ``cave_feat'' as temporary storage.
 112  * The values in ``cave_feat'' after this function
 113  * are NOT actual features; They are raw heights which
 114  * need to be converted to features.
 115  */
 116 static void plasma_recursive(int x1, int y1, int x2, int y2,
 117                              int depth_max, int rough)
 118 {
 119         /* Find middle */
 120         int xmid = (x2 - x1) / 2 + x1;
 121         int ymid = (y2 - y1) / 2 + y1;
 122
 123         /* Are we done? */
 124         if (x1 + 1 == x2) return;
 125
 126         perturb_point_mid(cave[y1][x1].feat, cave[y2][x1].feat, cave[y1][x2].feat,
 127                 cave[y2][x2].feat, xmid, ymid, rough, depth_max);
 128
 129         perturb_point_end(cave[y1][x1].feat, cave[y1][x2].feat, cave[ymid][xmid].feat,
 130                 xmid, y1, rough, depth_max);
 131
 132         perturb_point_end(cave[y1][x2].feat, cave[y2][x2].feat, cave[ymid][xmid].feat,
 133                 x2, ymid, rough, depth_max);
 134
 135         perturb_point_end(cave[y2][x2].feat, cave[y2][x1].feat, cave[ymid][xmid].feat,
 136                 xmid, y2, rough, depth_max);
 137
 138         perturb_point_end(cave[y2][x1].feat, cave[y1][x1].feat, cave[ymid][xmid].feat,
 139                 x1, ymid, rough, depth_max);
 140
 141
 142         /* Recurse the four quadrants */
 143         plasma_recursive(x1, y1, xmid, ymid, depth_max, rough);
 144         plasma_recursive(xmid, y1, x2, ymid, depth_max, rough);
 145         plasma_recursive(x1, ymid, xmid, y2, depth_max, rough);
 146         plasma_recursive(xmid, ymid, x2, y2, depth_max, rough);
 147 }
 148
 149
 150 /*
 151  * The default table in terrain level generation.
 152  */
 153 static int terrain_table[MAX_WILDERNESS][18] =
 154 {
 155         /* TERRAIN_EDGE */
 156         {
 157                         FEAT_PERM,
 158                         FEAT_PERM,
 159                         FEAT_PERM,
 160
 161                         FEAT_PERM,
 162                         FEAT_PERM,
 163                         FEAT_PERM,
 164
 165                         FEAT_PERM,
 166                         FEAT_PERM,
 167                         FEAT_PERM,
 168
 169                         FEAT_PERM,
 170                         FEAT_PERM,
 171                         FEAT_PERM,
 172
 173                         FEAT_PERM,
 174                         FEAT_PERM,
 175                         FEAT_PERM,
 176
 177                         FEAT_PERM,
 178                         FEAT_PERM,
 179                         FEAT_PERM,
 180         },
 181         /* TERRAIN_TOWN */
 182         {
 183                         FEAT_FLOOR,
 184                         FEAT_FLOOR,
 185                         FEAT_FLOOR,
 186
 187                         FEAT_FLOOR,
 188                         FEAT_FLOOR,
 189                         FEAT_FLOOR,
 190
 191                         FEAT_FLOOR,
 192                         FEAT_FLOOR,
 193                         FEAT_FLOOR,
 194
 195                         FEAT_FLOOR,
 196                         FEAT_FLOOR,
 197                         FEAT_FLOOR,
 198
 199                         FEAT_FLOOR,
 200                         FEAT_FLOOR,
 201                         FEAT_FLOOR,
 202
 203                         FEAT_FLOOR,
 204                         FEAT_FLOOR,
 205                         FEAT_FLOOR,
 206         },
 207         /* TERRAIN_DEEP_WATER */
 208         {
 209                         FEAT_DEEP_WATER,
 210                         FEAT_DEEP_WATER,
 211                         FEAT_DEEP_WATER,
 212
 213                         FEAT_DEEP_WATER,
 214                         FEAT_DEEP_WATER,
 215                         FEAT_DEEP_WATER,
 216
 217                         FEAT_DEEP_WATER,
 218                         FEAT_DEEP_WATER,
 219                         FEAT_DEEP_WATER,
 220
 221                         FEAT_DEEP_WATER,
 222                         FEAT_DEEP_WATER,
 223                         FEAT_DEEP_WATER,
 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         /* TERRAIN_SHALLOW_WATER */
 234         {
 235                         FEAT_DEEP_WATER,
 236                         FEAT_DEEP_WATER,
 237                         FEAT_DEEP_WATER,
 238
 239                         FEAT_SHAL_WATER,
 240                         FEAT_SHAL_WATER,
 241                         FEAT_SHAL_WATER,
 242
 243                         FEAT_SHAL_WATER,
 244                         FEAT_SHAL_WATER,
 245                         FEAT_SHAL_WATER,
 246
 247                         FEAT_SHAL_WATER,
 248                         FEAT_SHAL_WATER,
 249                         FEAT_SHAL_WATER,
 250
 251                         FEAT_SHAL_WATER,
 252                         FEAT_SHAL_WATER,
 253                         FEAT_SHAL_WATER,
 254
 255                         FEAT_FLOOR,
 256                         FEAT_DIRT,
 257                         FEAT_GRASS,
 258         },
 259         /* TERRAIN_SWAMP */
 260         {
 261                         FEAT_FLOOR,
 262                         FEAT_FLOOR,
 263                         FEAT_FLOOR,
 264
 265                         FEAT_SHAL_WATER,
 266                         FEAT_SHAL_WATER,
 267                         FEAT_SHAL_WATER,
 268
 269                         FEAT_SHAL_WATER,
 270                         FEAT_SHAL_WATER,
 271                         FEAT_SHAL_WATER,
 272
 273                         FEAT_GRASS,
 274                         FEAT_GRASS,
 275                         FEAT_GRASS,
 276
 277                         FEAT_GRASS,
 278                         FEAT_DIRT,
 279                         FEAT_DIRT,
 280
 281                         FEAT_DIRT,
 282                         FEAT_DEEP_GRASS,
 283                         FEAT_TREES,
 284         },
 285         /* TERRAIN_DIRT */
 286         {
 287                         FEAT_FLOOR,
 288                         FEAT_FLOOR,
 289                         FEAT_FLOOR,
 290
 291                         FEAT_DIRT,
 292                         FEAT_DIRT,
 293                         FEAT_DIRT,
 294
 295                         FEAT_DIRT,
 296                         FEAT_DIRT,
 297                         FEAT_DIRT,
 298
 299                         FEAT_DIRT,
 300                         FEAT_DIRT,
 301                         FEAT_DIRT,
 302
 303                         FEAT_DIRT,
 304                         FEAT_FLOWER,
 305                         FEAT_DEEP_GRASS,
 306
 307                         FEAT_GRASS,
 308                         FEAT_TREES,
 309                         FEAT_TREES,
 310         },
 311         /* TERRAIN_GRASS */
 312         {
 313                         FEAT_FLOOR,
 314                         FEAT_FLOOR,
 315                         FEAT_DIRT,
 316
 317                         FEAT_DIRT,
 318                         FEAT_GRASS,
 319                         FEAT_GRASS,
 320
 321                         FEAT_GRASS,
 322                         FEAT_GRASS,
 323                         FEAT_GRASS,
 324
 325                         FEAT_GRASS,
 326                         FEAT_GRASS,
 327                         FEAT_GRASS,
 328
 329                         FEAT_GRASS,
 330                         FEAT_FLOWER,
 331                         FEAT_DEEP_GRASS,
 332
 333                         FEAT_DEEP_GRASS,
 334                         FEAT_TREES,
 335                         FEAT_TREES,
 336         },
 337         /* TERRAIN_TREES */
 338         {
 339                         FEAT_FLOOR,
 340                         FEAT_FLOOR,
 341                         FEAT_DIRT,
 342
 343                         FEAT_TREES,
 344                         FEAT_TREES,
 345                         FEAT_TREES,
 346
 347                         FEAT_TREES,
 348                         FEAT_TREES,
 349                         FEAT_TREES,
 350
 351                         FEAT_TREES,
 352                         FEAT_TREES,
 353                         FEAT_TREES,
 354
 355                         FEAT_TREES,
 356                         FEAT_TREES,
 357                         FEAT_DEEP_GRASS,
 358
 359                         FEAT_DEEP_GRASS,
 360                         FEAT_GRASS,
 361                         FEAT_GRASS,
 362         },
 363         /* TERRAIN_DESERT */
 364         {
 365                         FEAT_FLOOR,
 366                         FEAT_FLOOR,
 367                         FEAT_DIRT,
 368
 369                         FEAT_DIRT,
 370                         FEAT_DIRT,
 371                         FEAT_DIRT,
 372
 373                         FEAT_DIRT,
 374                         FEAT_DIRT,
 375                         FEAT_DIRT,
 376
 377                         FEAT_DIRT,
 378                         FEAT_DIRT,
 379                         FEAT_DIRT,
 380
 381                         FEAT_DIRT,
 382                         FEAT_DIRT,
 383                         FEAT_DIRT,
 384
 385                         FEAT_GRASS,
 386                         FEAT_GRASS,
 387                         FEAT_GRASS,
 388         },
 389         /* TERRAIN_SHALLOW_LAVA */
 390         {
 391                         FEAT_SHAL_LAVA,
 392                         FEAT_SHAL_LAVA,
 393                         FEAT_SHAL_LAVA,
 394
 395                         FEAT_SHAL_LAVA,
 396                         FEAT_SHAL_LAVA,
 397                         FEAT_SHAL_LAVA,
 398
 399                         FEAT_SHAL_LAVA,
 400                         FEAT_SHAL_LAVA,
 401                         FEAT_SHAL_LAVA,
 402
 403                         FEAT_SHAL_LAVA,
 404                         FEAT_SHAL_LAVA,
 405                         FEAT_SHAL_LAVA,
 406
 407                         FEAT_SHAL_LAVA,
 408                         FEAT_SHAL_LAVA,
 409                         FEAT_DEEP_LAVA,
 410
 411                         FEAT_DEEP_LAVA,
 412                         FEAT_DEEP_LAVA,
 413                         FEAT_MOUNTAIN,
 414         },
 415         /* TERRAIN_DEEP_LAVA */
 416         {
 417                         FEAT_DIRT,
 418                         FEAT_DIRT,
 419                         FEAT_DIRT,
 420
 421                         FEAT_SHAL_LAVA,
 422                         FEAT_SHAL_LAVA,
 423                         FEAT_SHAL_LAVA,
 424
 425                         FEAT_DEEP_LAVA,
 426                         FEAT_DEEP_LAVA,
 427                         FEAT_DEEP_LAVA,
 428
 429                         FEAT_DEEP_LAVA,
 430                         FEAT_DEEP_LAVA,
 431                         FEAT_DEEP_LAVA,
 432
 433                         FEAT_DEEP_LAVA,
 434                         FEAT_DEEP_LAVA,
 435                         FEAT_DEEP_LAVA,
 436
 437                         FEAT_DEEP_LAVA,
 438                         FEAT_MOUNTAIN,
 439                         FEAT_MOUNTAIN,
 440         },
 441         /* TERRAIN_MOUNTAIN */
 442         {
 443                         FEAT_FLOOR,
 444                         FEAT_DEEP_GRASS,
 445                         FEAT_GRASS,
 446
 447                         FEAT_GRASS,
 448                         FEAT_DIRT,
 449                         FEAT_DIRT,
 450
 451                         FEAT_TREES,
 452                         FEAT_TREES,
 453                         FEAT_MOUNTAIN,
 454
 455                         FEAT_MOUNTAIN,
 456                         FEAT_MOUNTAIN,
 457                         FEAT_MOUNTAIN,
 458
 459                         FEAT_MOUNTAIN,
 460                         FEAT_MOUNTAIN,
 461                         FEAT_MOUNTAIN,
 462
 463                         FEAT_MOUNTAIN,
 464                         FEAT_MOUNTAIN,
 465                         FEAT_MOUNTAIN,
 466         },
 467
 468 };
 469
 470
 471 static void generate_wilderness_area(int terrain, u32b seed, bool border, bool corner)
 472 {
 473         int x1, y1;
 474         int table_size = sizeof(terrain_table[0]) / sizeof(int);
 475         int roughness = 1; /* The roughness of the level. */
 476
 477         /* Unused */
 478         (void)border;
 479
 480         /* The outer wall is easy */
 481         if (terrain == TERRAIN_EDGE)
 482         {
 483                 /* Create level background */
 484                 for (y1 = 0; y1 < MAX_HGT; y1++)
 485                 {
 486                         for (x1 = 0; x1 < MAX_WID; x1++)
 487                         {
 488                                 cave[y1][x1].feat = FEAT_PERM;
 489                         }
 490                 }
 491
 492                 /* We are done already */
 493                 return;
 494         }
 495
 496
 497         /* Hack -- Use the "simple" RNG */
 498         Rand_quick = TRUE;
 499
 500         /* Hack -- Induce consistant town layout */
 501         Rand_value = seed;
 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          * Initialize the four corners
 514          * ToDo: calculate the medium height of the adjacent
 515          * terrains for every corner.
 516          */
 517         cave[1][1].feat = randint0(table_size);
 518         cave[MAX_HGT-2][1].feat = randint0(table_size);
 519         cave[1][MAX_WID-2].feat = randint0(table_size);
 520         cave[MAX_HGT-2][MAX_WID-2].feat = randint0(table_size);
 521
 522         if (!corner)
 523         {
 524                 /* x1, y1, x2, y2, num_depths, roughness */
 525                 plasma_recursive(1, 1, MAX_WID-2, MAX_HGT-2, table_size-1, roughness);
 526         }
 527
 528         /* Use the complex RNG */
 529         Rand_quick = FALSE;
 530
 531         for (y1 = 1; y1 < MAX_HGT-1; y1++)
 532         {
 533                 for (x1 = 1; x1 < MAX_WID-1; x1++)
 534                 {
 535                         cave[y1][x1].feat = terrain_table[terrain][cave[y1][x1].feat];
 536                 }
 537         }
 538 }
 539
 540
 541
 542 /*
 543  * Load a town or generate a terrain level using "plasma" fractals.
 544  *
 545  * x and y are the coordinates of the area in the wilderness.
 546  * Border and corner are optimization flags to speed up the
 547  * generation of the fractal terrain.
 548  * If border is set then only the border of the terrain should
 549  * be generated (for initializing the border structure).
 550  * If corner is set then only the corners of the area are needed.
 551  */
 552 static void generate_area(int y, int x, bool border, bool corner)
 553 {
 554         int x1, y1;
 555
 556         /* Number of the town (if any) */
 557         p_ptr->town_num = wilderness[y][x].town;
 558
 559         /* Set the base level */
 560         base_level = wilderness[y][x].level;
 561
 562         /* Set the dungeon level */
 563         dun_level = 0;
 564
 565         /* Set the monster generation level */
 566         monster_level = base_level;
 567
 568         /* Set the object generation level */
 569         object_level = base_level;
 570
 571
 572         /* Create the town */
 573         if (p_ptr->town_num)
 574         {
 575                 /* Reset the buildings */
 576                 init_buildings();
 577
 578                 /* Initialize the town */
 579                 if (border | corner)
 580                         init_flags = INIT_CREATE_DUNGEON | INIT_ONLY_FEATURES;
 581                 else
 582                         init_flags = INIT_CREATE_DUNGEON;
 583
 584                 process_dungeon_file("t_info.txt", 0, 0, MAX_HGT, MAX_WID);
 585
 586                 if (!corner && !border) p_ptr->visit |= (1L << (p_ptr->town_num - 1));
 587         }
 588         else
 589         {
 590                 int terrain = wilderness[y][x].terrain;
 591                 u32b seed = wilderness[y][x].seed;
 592
 593                 generate_wilderness_area(terrain, seed, border, corner);
 594         }
 595
 596         if (!corner && !wilderness[y][x].town)
 597         {
 598                 /*
 599                  * Place roads in the wilderness
 600                  * ToDo: make the road a bit more interresting
 601                  */
 602                 if (wilderness[y][x].road)
 603                 {
 604                         cave[MAX_HGT/2][MAX_WID/2].feat = FEAT_FLOOR;
 605
 606                         if (wilderness[y-1][x].road)
 607                         {
 608                                 /* North road */
 609                                 for (y1 = 1; y1 < MAX_HGT/2; y1++)
 610                                 {
 611                                         x1 = MAX_WID/2;
 612                                         cave[y1][x1].feat = FEAT_FLOOR;
 613                                 }
 614                         }
 615
 616                         if (wilderness[y+1][x].road)
 617                         {
 618                                 /* North road */
 619                                 for (y1 = MAX_HGT/2; y1 < MAX_HGT - 1; y1++)
 620                                 {
 621                                         x1 = MAX_WID/2;
 622                                         cave[y1][x1].feat = FEAT_FLOOR;
 623                                 }
 624                         }
 625
 626                         if (wilderness[y][x+1].road)
 627                         {
 628                                 /* East road */
 629                                 for (x1 = MAX_WID/2; x1 < MAX_WID - 1; x1++)
 630                                 {
 631                                         y1 = MAX_HGT/2;
 632                                         cave[y1][x1].feat = FEAT_FLOOR;
 633                                 }
 634                         }
 635
 636                         if (wilderness[y][x-1].road)
 637                         {
 638                                 /* West road */
 639                                 for (x1 = 1; x1 < MAX_WID/2; x1++)
 640                                 {
 641                                         y1 = MAX_HGT/2;
 642                                         cave[y1][x1].feat = FEAT_FLOOR;
 643                                 }
 644                         }
 645                 }
 646         }
 647
 648         if (wilderness[y][x].entrance && !wilderness[y][x].town && (p_ptr->total_winner || !(d_info[wilderness[y][x].entrance].flags1 & DF1_WINNER)))
 649         {
 650                 int dy, dx;
 651
 652                 /* Hack -- Use the "simple" RNG */
 653                 Rand_quick = TRUE;
 654
 655                 /* Hack -- Induce consistant town layout */
 656                 Rand_value = wilderness[y][x].seed;
 657
 658                 dy = rand_range(6, cur_hgt - 6);
 659                 dx = rand_range(6, cur_wid - 6);
 660
 661                 cave[dy][dx].feat = FEAT_ENTRANCE;
 662                 cave[dy][dx].special = wilderness[y][x].entrance;
 663
 664                 /* Use the complex RNG */
 665                 Rand_quick = FALSE;
 666         }
 667 }
 668
 669
 670 /*
 671  * Border of the wilderness area
 672  */
 673 static border_type border;
 674
 675
 676 /*
 677  * Build the wilderness area outside of the town.
 678  */
 679 void wilderness_gen(void)
 680 {
 681         int i, y, x, lim;
 682         cave_type *c_ptr;
 683         feature_type *f_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;
 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;
 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;
 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;
 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                                 /* Feature code (applying "mimic" field) */
 815                                 f_ptr = &f_info[get_feat_mimic(c_ptr)];
 816
 817                                 if (!is_mirror_grid(c_ptr) && !have_flag(f_ptr->flags, FF_QUEST_ENTER) &&
 818                                     !have_flag(f_ptr->flags, FF_ENTRANCE))
 819                                 {
 820                                         /* Assume dark */
 821                                         c_ptr->info &= ~(CAVE_GLOW);
 822
 823                                         /* Darken "boring" features */
 824                                         if (!have_flag(f_ptr->flags, FF_REMEMBER))
 825                                         {
 826                                                 /* Forget the grid */
 827                                                 c_ptr->info &= ~(CAVE_MARK);
 828                                         }
 829                                 }
 830                                 else if (have_flag(f_ptr->flags, FF_ENTRANCE))
 831                                 {
 832                                         /* Assume lit */
 833                                         c_ptr->info |= (CAVE_GLOW);
 834
 835                                         /* Hack -- Memorize lit grids if allowed */
 836                                         if (view_perma_grids) c_ptr->info |= (CAVE_MARK);
 837                                 }
 838                         }
 839                 }
 840         }
 841
 842         if (p_ptr->teleport_town)
 843         {
 844                 for (y = 0; y < cur_hgt; y++)
 845                 {
 846                         for (x = 0; x < cur_wid; x++)
 847                         {
 848                                 /* Get the cave grid */
 849                                 c_ptr = &cave[y][x];
 850
 851                                 /* Seeing true feature code (ignore mimic) */
 852                                 f_ptr = &f_info[c_ptr->feat];
 853
 854                                 if (have_flag(f_ptr->flags, FF_BLDG))
 855                                 {
 856                                         if ((f_ptr->power == 4) || ((p_ptr->town_num == 1) && (f_ptr->power == 0)))
 857                                         {
 858                                                 if (c_ptr->m_idx) delete_monster_idx(c_ptr->m_idx);
 859                                                 p_ptr->oldpy = y;
 860                                                 p_ptr->oldpx = x;
 861                                         }
 862                                 }
 863                         }
 864                 }
 865                 p_ptr->teleport_town = FALSE;
 866         }
 867
 868         else if (p_ptr->leaving_dungeon)
 869         {
 870                 for (y = 0; y < cur_hgt; y++)
 871                 {
 872                         for (x = 0; x < cur_wid; x++)
 873                         {
 874                                 /* Get the cave grid */
 875                                 c_ptr = &cave[y][x];
 876
 877                                 if (have_flag(f_flags_grid(c_ptr), FF_ENTRANCE))
 878                                 {
 879                                         if (c_ptr->m_idx) delete_monster_idx(c_ptr->m_idx);
 880                                         p_ptr->oldpy = y;
 881                                         p_ptr->oldpx = x;
 882                                 }
 883                         }
 884                 }
 885                 p_ptr->teleport_town = FALSE;
 886         }
 887
 888         player_place(p_ptr->oldpy, p_ptr->oldpx);
 889         /* p_ptr->leaving_dungeon = FALSE;*/
 890
 891         lim = (generate_encounter==TRUE)?40:MIN_M_ALLOC_TN;
 892
 893         /* Make some residents */
 894         for (i = 0; i < lim; i++)
 895         {
 896                 u32b mode = 0;
 897
 898                 if (!(generate_encounter || (one_in_(2) && (!p_ptr->town_num))))
 899                         mode |= PM_ALLOW_SLEEP;
 900
 901                 /* Make a resident */
 902                 (void)alloc_monster(generate_encounter ? 0 : 3, mode);
 903         }
 904
 905         if(generate_encounter) ambush_flag = TRUE;
 906         generate_encounter = FALSE;
 907
 908         /* Fill the arrays of floors and walls in the good proportions */
 909         set_floor_and_wall(0);
 910
 911         /* Set rewarded quests to finished */
 912         for (i = 0; i < max_quests; i++)
 913         {
 914                 if (quest[i].status == QUEST_STATUS_REWARDED)
 915                         quest[i].status = QUEST_STATUS_FINISHED;
 916         }
 917 }
 918
 919
 920 /*
 921  * Build the wilderness area.
 922  * -DG-
 923  */
 924 void wilderness_gen_small()
 925 {
 926         int i, j;
 927
 928         /* To prevent stupid things */
 929         for (i = 0; i < MAX_WID; i++)
 930         for (j = 0; j < MAX_HGT; j++)
 931         {
 932                 cave[j][i].feat = FEAT_PERM;
 933         }
 934
 935         /* Init the wilderness */
 936         process_dungeon_file("w_info.txt", 0, 0, max_wild_y, max_wild_x);
 937
 938         /* Fill the map */
 939         for (i = 0; i < max_wild_x; i++)
 940         for (j = 0; j < max_wild_y; j++)
 941         {
 942                 if (wilderness[j][i].town && (wilderness[j][i].town != NO_TOWN))
 943                 {
 944                         cave[j][i].feat = FEAT_TOWN;
 945                         cave[j][i].special = wilderness[j][i].town;
 946                 }
 947                 else if (wilderness[j][i].road) cave[j][i].feat = FEAT_FLOOR;
 948                 else if (wilderness[j][i].entrance && (p_ptr->total_winner || !(d_info[wilderness[j][i].entrance].flags1 & DF1_WINNER)))
 949                 {
 950                         cave[j][i].feat = FEAT_ENTRANCE;
 951                         cave[j][i].special = (byte)wilderness[j][i].entrance;
 952                 }
 953                 else cave[j][i].feat = conv_terrain2feat[wilderness[j][i].terrain];
 954
 955                 cave[j][i].info |= (CAVE_GLOW | CAVE_MARK);
 956         }
 957
 958         cur_hgt = (s16b) max_wild_y;
 959         cur_wid = (s16b) max_wild_x;
 960
 961         if (cur_hgt > MAX_HGT) cur_hgt = MAX_HGT;
 962         if (cur_wid > MAX_WID) cur_wid = MAX_WID;
 963
 964         /* Assume illegal panel */
 965         panel_row_min = cur_hgt;
 966         panel_col_min = cur_wid;
 967
 968         /* Place the player */
 969         px = p_ptr->wilderness_x;
 970         py = p_ptr->wilderness_y;
 971
 972         p_ptr->town_num = 0;
 973 }
 974
 975
 976 typedef struct wilderness_grid wilderness_grid;
 977
 978 struct wilderness_grid
 979 {
 980         int             terrain;    /* Terrain type */
 981         int             town;       /* Town number */
 982         s16b    level;          /* Level of the wilderness */
 983         byte    road;       /* Road */
 984         char    name[32];       /* Name of the town/wilderness */
 985 };
 986
 987
 988 static wilderness_grid w_letter[255];
 989
 990
 991 /*
 992  * Parse a sub-file of the "extra info"
 993  */
 994 errr parse_line_wilderness(char *buf, int ymin, int xmin, int ymax, int xmax, int *y, int *x)
 995 {
 996         int i, num;
 997         char *zz[33];
 998
 999         /* Unused */
1000         (void)ymin;
1001         (void)ymax;
1002
1003         /* Paranoia */
1004         if (!(buf[0] == 'W')) return (PARSE_ERROR_GENERIC);
1005
1006         switch (buf[2])
1007         {
1008                 /* Process "W:F:<letter>:<terrain>:<town>:<road>:<name> */
1009 #ifdef JP
1010         case 'E':
1011                 return 0;
1012         case 'F':
1013         case 'J':
1014 #else
1015         case 'J':
1016                 return 0;
1017         case 'F':
1018         case 'E':
1019 #endif
1020         {
1021                 if ((num = tokenize(buf+4, 6, zz, 0)) > 1)
1022                 {
1023                         int index = zz[0][0];
1024
1025                         if (num > 1)
1026                                 w_letter[index].terrain = atoi(zz[1]);
1027                         else
1028                                 w_letter[index].terrain = 0;
1029
1030                         if (num > 2)
1031                                 w_letter[index].level = atoi(zz[2]);
1032                         else
1033                                 w_letter[index].level = 0;
1034
1035                         if (num > 3)
1036                                 w_letter[index].town = atoi(zz[3]);
1037                         else
1038                                 w_letter[index].town = 0;
1039
1040                         if (num > 4)
1041                                 w_letter[index].road = atoi(zz[4]);
1042                         else
1043                                 w_letter[index].road = 0;
1044
1045                         if (num > 5)
1046                                 strcpy(w_letter[index].name, zz[5]);
1047                         else
1048                                 w_letter[index].name[0] = 0;
1049                 }
1050                 else
1051                 {
1052                                 /* Failure */
1053                         return (PARSE_ERROR_TOO_FEW_ARGUMENTS);
1054                 }
1055
1056                 break;
1057         }
1058
1059         /* Process "W:D:<layout> */
1060         /* Layout of the wilderness */
1061         case 'D':
1062         {
1063                 /* Acquire the text */
1064                 char *s = buf+4;
1065
1066                 /* Length of the text */
1067                 int len = strlen(s);
1068
1069                 for (*x = xmin, i = 0; ((*x < xmax) && (i < len)); (*x)++, s++, i++)
1070                 {
1071                         int idx = s[0];
1072
1073                         wilderness[*y][*x].terrain = w_letter[idx].terrain;
1074
1075                         wilderness[*y][*x].level = w_letter[idx].level;
1076
1077                         wilderness[*y][*x].town = w_letter[idx].town;
1078
1079                         wilderness[*y][*x].road = w_letter[idx].road;
1080
1081                         strcpy(town[w_letter[idx].town].name, w_letter[idx].name);
1082                 }
1083
1084                 (*y)++;
1085
1086                 break;
1087         }
1088
1089         /* Process "W:P:<x>:<y> - starting position in the wilderness */
1090         case 'P':
1091         {
1092                 if ((p_ptr->wilderness_x == 0) &&
1093                     (p_ptr->wilderness_y == 0))
1094                 {
1095                         if (tokenize(buf+4, 2, zz, 0) == 2)
1096                         {
1097                                 p_ptr->wilderness_y = atoi(zz[0]);
1098                                 p_ptr->wilderness_x = atoi(zz[1]);
1099
1100                                 if ((p_ptr->wilderness_x < 1) ||
1101                                     (p_ptr->wilderness_x > max_wild_x) ||
1102                                     (p_ptr->wilderness_y < 1) ||
1103                                     (p_ptr->wilderness_y > max_wild_y))
1104                                 {
1105                                         return (PARSE_ERROR_OUT_OF_BOUNDS);
1106                                 }
1107                         }
1108                         else
1109                         {
1110                                 return (PARSE_ERROR_TOO_FEW_ARGUMENTS);
1111                         }
1112                 }
1113
1114                 break;
1115         }
1116
1117         default:
1118                 /* Failure */
1119                 return (PARSE_ERROR_UNDEFINED_DIRECTIVE);
1120         }
1121
1122         for (i = 1; i < max_d_idx; i++)
1123         {
1124                 if (!d_info[i].maxdepth) continue;
1125                 wilderness[d_info[i].dy][d_info[i].dx].entrance = i;
1126                 if (!wilderness[d_info[i].dy][d_info[i].dx].town)
1127                         wilderness[d_info[i].dy][d_info[i].dx].level = d_info[i].mindepth;
1128         }
1129
1130         /* Success */
1131         return (0);
1132 }
1133
1134
1135 /*
1136  * Generate the random seeds for the wilderness
1137  */
1138 void seed_wilderness(void)
1139 {
1140         int x, y;
1141
1142         /* Init wilderness seeds */
1143         for (x = 0; x < max_wild_x; x++)
1144         {
1145                 for (y = 0; y < max_wild_y; y++)
1146                 {
1147                         wilderness[y][x].seed = randint0(0x10000000);
1148                         wilderness[y][x].entrance = 0;
1149                 }
1150         }
1151 }
1152
1153
1154 /*
1155  * Pointer to wilderness_type
1156  */
1157 typedef wilderness_type *wilderness_type_ptr;
1158
1159 /*
1160  * Initialize wilderness array
1161  */
1162 errr init_wilderness(void)
1163 {
1164         int i;
1165
1166         /* Allocate the wilderness (two-dimension array) */
1167         C_MAKE(wilderness, max_wild_y, wilderness_type_ptr);
1168         C_MAKE(wilderness[0], max_wild_x * max_wild_y, wilderness_type);
1169
1170         /* Init the other pointers */
1171         for (i = 1; i < max_wild_y; i++)
1172                 wilderness[i] = wilderness[0] + i * max_wild_x;
1173
1174         generate_encounter = FALSE;
1175
1176         return 0;
1177 }
1178
1179
1180 bool change_wild_mode(void)
1181 {
1182         int i;
1183         bool have_pet = FALSE;
1184
1185         /* It is in the middle of changing map */
1186         if (p_ptr->leaving) return FALSE;
1187
1188
1189         if (lite_town || vanilla_town)
1190         {
1191 #ifdef JP
1192                 msg_print("¹ÓÌî¤Ê¤ó¤Æ¤Ê¤¤¡£");
1193 #else
1194                 msg_print("No global map.");
1195 #endif
1196                 return FALSE;
1197         }
1198
1199         if (p_ptr->wild_mode)
1200         {
1201                 /* Save the location in the global map */
1202                 p_ptr->wilderness_x = px;
1203                 p_ptr->wilderness_y = py;
1204
1205                 /* Give first move to the player */
1206                 p_ptr->energy_need = 0;
1207
1208                 /* Go back to the ordinary map */
1209                 p_ptr->wild_mode = FALSE;
1210
1211                 /* Leaving */
1212                 p_ptr->leaving = TRUE;
1213
1214                 /* Succeed */
1215                 return TRUE;
1216         }
1217
1218         for (i = 1; i < m_max; i++)
1219         {
1220                 monster_type *m_ptr = &m_list[i];
1221
1222                 if (!m_ptr->r_idx) continue;
1223                 if (is_pet(m_ptr) && i != p_ptr->riding) have_pet = TRUE;
1224                 if (m_ptr->csleep) continue;
1225                 if (m_ptr->cdis > MAX_SIGHT) continue;
1226                 if (!is_hostile(m_ptr)) continue;
1227 #ifdef JP
1228                 msg_print("Å¨¤¬¤¹¤°¶á¤¯¤Ë¤¤¤ë¤È¤¤Ï¹°è¥Þ¥Ã¥×¤ËÆþ¤ì¤Ê¤¤¡ª");
1229 #else
1230                 msg_print("You cannot enter global map, since there is some monsters nearby!");
1231 #endif
1232                 energy_use = 0;
1233                 return FALSE;
1234         }
1235
1236         if (have_pet)
1237         {
1238 #ifdef JP
1239                 cptr msg = "¥Ú¥Ã¥È¤òÃÖ¤¤¤Æ¹°è¥Þ¥Ã¥×¤ËÆþ¤ê¤Þ¤¹¤«¡©";
1240 #else
1241                 cptr msg = "Do you leave your pets behind? ";
1242 #endif
1243
1244                 if (!get_check_strict(msg, CHECK_OKAY_CANCEL))
1245                 {
1246                         energy_use = 0;
1247                         return FALSE;
1248                 }
1249         }
1250
1251         /* HACK */
1252         energy_use = 1000;
1253
1254         /* Remember the position */
1255         p_ptr->oldpx = px;
1256         p_ptr->oldpy = py;
1257
1258         /* Cancel any special action */
1259         set_action(ACTION_NONE);
1260
1261         /* Go into the global map */
1262         p_ptr->wild_mode = TRUE;
1263
1264         /* Leaving */
1265         p_ptr->leaving = TRUE;
1266
1267         /* Succeed */
1268         return TRUE;
1269 }