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 /*
  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         /* Unused */
 479         (void)border;
 480
 481         /* The outer wall is easy */
 482         if (terrain == TERRAIN_EDGE)
 483         {
 484                 /* Create level background */
 485                 for (y1 = 0; y1 < MAX_HGT; y1++)
 486                 {
 487                         for (x1 = 0; x1 < MAX_WID; x1++)
 488                         {
 489                                 cave[y1][x1].feat = FEAT_PERM_SOLID;
 490                         }
 491                 }
 492
 493                 /* We are done already */
 494                 return;
 495         }
 496
 497
 498         /* Hack -- Use the "simple" RNG */
 499         Rand_quick = TRUE;
 500
 501         /* Hack -- Induce consistant town layout */
 502         Rand_value = seed;
 503
 504         if (!corner)
 505         {
 506                 /* Create level background */
 507                 for (y1 = 0; y1 < MAX_HGT; y1++)
 508                 {
 509                         for (x1 = 0; x1 < MAX_WID; x1++)
 510                         {
 511                                 cave[y1][x1].feat = table_size / 2;
 512                         }
 513                 }
 514         }
 515
 516         /*
 517          * Initialize the four corners
 518          * ToDo: calculate the medium height of the adjacent
 519          * terrains for every corner.
 520          */
 521         cave[1][1].feat = randint0(table_size);
 522         cave[MAX_HGT-2][1].feat = randint0(table_size);
 523         cave[1][MAX_WID-2].feat = randint0(table_size);
 524         cave[MAX_HGT-2][MAX_WID-2].feat = randint0(table_size);
 525
 526         if (!corner)
 527         {
 528                 /* x1, y1, x2, y2, num_depths, roughness */
 529                 plasma_recursive(1, 1, MAX_WID-2, MAX_HGT-2, table_size-1, roughness);
 530         }
 531
 532         /* Use the complex RNG */
 533         Rand_quick = FALSE;
 534
 535         for (y1 = 1; y1 < MAX_HGT-1; y1++)
 536         {
 537                 for (x1 = 1; x1 < MAX_WID-1; x1++)
 538                 {
 539                         cave[y1][x1].feat = terrain_table[terrain][cave[y1][x1].feat];
 540                 }
 541         }
 542 }
 543
 544
 545
 546 /*
 547  * Load a town or generate a terrain level using "plasma" fractals.
 548  *
 549  * x and y are the coordinates of the area in the wilderness.
 550  * Border and corner are optimization flags to speed up the
 551  * generation of the fractal terrain.
 552  * If border is set then only the border of the terrain should
 553  * be generated (for initializing the border structure).
 554  * If corner is set then only the corners of the area are needed.
 555  */
 556 static void generate_area(int y, int x, bool border, bool corner)
 557 {
 558         int x1, y1;
 559
 560         /* Number of the town (if any) */
 561         p_ptr->town_num = wilderness[y][x].town;
 562
 563         /* Set the base level */
 564         base_level = wilderness[y][x].level;
 565
 566         /* Set the dungeon level */
 567         dun_level = 0;
 568
 569         /* Set the monster generation level */
 570         monster_level = base_level;
 571
 572         /* Set the object generation level */
 573         object_level = base_level;
 574
 575
 576         /* Create the town */
 577         if (p_ptr->town_num)
 578         {
 579                 /* Reset the buildings */
 580                 init_buildings();
 581
 582                 /* Initialize the town */
 583                 if (border | corner)
 584                         init_flags = INIT_CREATE_DUNGEON | INIT_ONLY_FEATURES;
 585                 else
 586                         init_flags = INIT_CREATE_DUNGEON;
 587
 588                 process_dungeon_file("t_info.txt", 0, 0, MAX_HGT, MAX_WID);
 589
 590                 if (!corner && !border) p_ptr->visit |= (1L << (p_ptr->town_num - 1));
 591         }
 592         else
 593         {
 594                 int terrain = wilderness[y][x].terrain;
 595                 u32b seed = wilderness[y][x].seed;
 596
 597                 generate_wilderness_area(terrain, seed, border, corner);
 598         }
 599
 600         if (!corner && !wilderness[y][x].town)
 601         {
 602                 /*
 603                  * Place roads in the wilderness
 604                  * ToDo: make the road a bit more interresting
 605                  */
 606                 if (wilderness[y][x].road)
 607                 {
 608                         cave[MAX_HGT/2][MAX_WID/2].feat = FEAT_FLOOR;
 609
 610                         if (wilderness[y-1][x].road)
 611                         {
 612                                 /* North road */
 613                                 for (y1 = 1; y1 < MAX_HGT/2; y1++)
 614                                 {
 615                                         x1 = MAX_WID/2;
 616                                         cave[y1][x1].feat = FEAT_FLOOR;
 617                                 }
 618                         }
 619
 620                         if (wilderness[y+1][x].road)
 621                         {
 622                                 /* North road */
 623                                 for (y1 = MAX_HGT/2; y1 < MAX_HGT - 1; y1++)
 624                                 {
 625                                         x1 = MAX_WID/2;
 626                                         cave[y1][x1].feat = FEAT_FLOOR;
 627                                 }
 628                         }
 629
 630                         if (wilderness[y][x+1].road)
 631                         {
 632                                 /* East road */
 633                                 for (x1 = MAX_WID/2; x1 < MAX_WID - 1; x1++)
 634                                 {
 635                                         y1 = MAX_HGT/2;
 636                                         cave[y1][x1].feat = FEAT_FLOOR;
 637                                 }
 638                         }
 639
 640                         if (wilderness[y][x-1].road)
 641                         {
 642                                 /* West road */
 643                                 for (x1 = 1; x1 < MAX_WID/2; x1++)
 644                                 {
 645                                         y1 = MAX_HGT/2;
 646                                         cave[y1][x1].feat = FEAT_FLOOR;
 647                                 }
 648                         }
 649                 }
 650         }
 651
 652         if (wilderness[y][x].entrance && !wilderness[y][x].town && (p_ptr->total_winner || !(d_info[wilderness[y][x].entrance].flags1 & DF1_WINNER)))
 653         {
 654                 int dy, dx;
 655
 656                 /* Hack -- Use the "simple" RNG */
 657                 Rand_quick = TRUE;
 658
 659                 /* Hack -- Induce consistant town layout */
 660                 Rand_value = wilderness[y][x].seed;
 661
 662                 dy = rand_range(6, cur_hgt - 6);
 663                 dx = rand_range(6, cur_wid - 6);
 664
 665                 cave[dy][dx].feat = FEAT_ENTRANCE;
 666                 cave[dy][dx].special = wilderness[y][x].entrance;
 667
 668                 /* Use the complex RNG */
 669                 Rand_quick = FALSE;
 670         }
 671 }
 672
 673
 674 /*
 675  * Border of the wilderness area
 676  */
 677 static border_type border;
 678
 679
 680 /*
 681  * Build the wilderness area outside of the town.
 682  */
 683 void wilderness_gen(void)
 684 {
 685         int i, y, x, lim;
 686         cave_type *c_ptr;
 687         feature_type *f_ptr;
 688
 689         /* Big town */
 690         cur_hgt = MAX_HGT;
 691         cur_wid = MAX_WID;
 692
 693         /* Assume illegal panel */
 694         panel_row_min = cur_hgt;
 695         panel_col_min = cur_wid;
 696
 697         /* Init the wilderness */
 698
 699         process_dungeon_file("w_info.txt", 0, 0, max_wild_y, max_wild_x);
 700
 701         x = p_ptr->wilderness_x;
 702         y = p_ptr->wilderness_y;
 703
 704         /* Prepare allocation table */
 705         get_mon_num_prep(get_monster_hook(), NULL);
 706
 707         /* North border */
 708         generate_area(y - 1, x, TRUE, FALSE);
 709
 710         for (i = 1; i < MAX_WID - 1; i++)
 711         {
 712                 border.north[i] = cave[MAX_HGT - 2][i].feat;
 713         }
 714
 715         /* South border */
 716         generate_area(y + 1, x, TRUE, FALSE);
 717
 718         for (i = 1; i < MAX_WID - 1; i++)
 719         {
 720                 border.south[i] = cave[1][i].feat;
 721         }
 722
 723         /* West border */
 724         generate_area(y, x - 1, TRUE, FALSE);
 725
 726         for (i = 1; i < MAX_HGT - 1; i++)
 727         {
 728                 border.west[i] = cave[i][MAX_WID - 2].feat;
 729         }
 730
 731         /* East border */
 732         generate_area(y, x + 1, TRUE, FALSE);
 733
 734         for (i = 1; i < MAX_HGT - 1; i++)
 735         {
 736                 border.east[i] = cave[i][1].feat;
 737         }
 738
 739         /* North west corner */
 740         generate_area(y - 1, x - 1, FALSE, TRUE);
 741         border.north_west = cave[MAX_HGT - 2][MAX_WID - 2].feat;
 742
 743         /* North east corner */
 744         generate_area(y - 1, x + 1, FALSE, TRUE);
 745         border.north_east = cave[MAX_HGT - 2][1].feat;
 746
 747         /* South west corner */
 748         generate_area(y + 1, x - 1, FALSE, TRUE);
 749         border.south_west = cave[1][MAX_WID - 2].feat;
 750
 751         /* South east corner */
 752         generate_area(y + 1, x + 1, FALSE, TRUE);
 753         border.south_east = cave[1][1].feat;
 754
 755
 756         /* Create terrain of the current area */
 757         generate_area(y, x, FALSE, FALSE);
 758
 759
 760         /* Special boundary walls -- North */
 761         for (i = 0; i < MAX_WID; i++)
 762         {
 763                 cave[0][i].feat = FEAT_PERM_SOLID;
 764                 cave[0][i].mimic = border.north[i];
 765         }
 766
 767         /* Special boundary walls -- South */
 768         for (i = 0; i < MAX_WID; i++)
 769         {
 770                 cave[MAX_HGT - 1][i].feat = FEAT_PERM_SOLID;
 771                 cave[MAX_HGT - 1][i].mimic = border.south[i];
 772         }
 773
 774         /* Special boundary walls -- West */
 775         for (i = 0; i < MAX_HGT; i++)
 776         {
 777                 cave[i][0].feat = FEAT_PERM_SOLID;
 778                 cave[i][0].mimic = border.west[i];
 779         }
 780
 781         /* Special boundary walls -- East */
 782         for (i = 0; i < MAX_HGT; i++)
 783         {
 784                 cave[i][MAX_WID - 1].feat = FEAT_PERM_SOLID;
 785                 cave[i][MAX_WID - 1].mimic = border.east[i];
 786         }
 787
 788         /* North west corner */
 789         cave[0][0].mimic = border.north_west;
 790
 791         /* North east corner */
 792         cave[0][MAX_WID - 1].mimic = border.north_east;
 793
 794         /* South west corner */
 795         cave[MAX_HGT - 1][0].mimic = border.south_west;
 796
 797         /* South east corner */
 798         cave[MAX_HGT - 1][MAX_WID - 1].mimic = border.south_east;
 799
 800         /* Light up or darken the area */
 801         for (y = 0; y < cur_hgt; y++)
 802         {
 803                 for (x = 0; x < cur_wid; x++)
 804                 {
 805                         /* Get the cave grid */
 806                         c_ptr = &cave[y][x];
 807
 808                         if (is_daytime())
 809                         {
 810                                 /* Assume lit */
 811                                 c_ptr->info |= (CAVE_GLOW);
 812
 813                                 /* Hack -- Memorize lit grids if allowed */
 814                                 if (view_perma_grids) c_ptr->info |= (CAVE_MARK);
 815                         }
 816                         else
 817                         {
 818                                 /* Feature code (applying "mimic" field) */
 819                                 f_ptr = &f_info[get_feat_mimic(c_ptr)];
 820
 821                                 if (!is_mirror_grid(c_ptr) && !have_flag(f_ptr->flags, FF_QUEST_ENTER) &&
 822                                     !have_flag(f_ptr->flags, FF_ENTRANCE))
 823                                 {
 824                                         /* Assume dark */
 825                                         c_ptr->info &= ~(CAVE_GLOW);
 826
 827                                         /* Darken "boring" features */
 828                                         if (!have_flag(f_ptr->flags, FF_REMEMBER))
 829                                         {
 830                                                 /* Forget the grid */
 831                                                 c_ptr->info &= ~(CAVE_MARK);
 832                                         }
 833                                 }
 834                                 else if (have_flag(f_ptr->flags, FF_ENTRANCE))
 835                                 {
 836                                         /* Assume lit */
 837                                         c_ptr->info |= (CAVE_GLOW);
 838
 839                                         /* Hack -- Memorize lit grids if allowed */
 840                                         if (view_perma_grids) c_ptr->info |= (CAVE_MARK);
 841                                 }
 842                         }
 843                 }
 844         }
 845
 846         if (p_ptr->teleport_town)
 847         {
 848                 for (y = 0; y < cur_hgt; y++)
 849                 {
 850                         for (x = 0; x < cur_wid; x++)
 851                         {
 852                                 /* Get the cave grid */
 853                                 c_ptr = &cave[y][x];
 854
 855                                 /* Seeing true feature code (ignore mimic) */
 856                                 f_ptr = &f_info[c_ptr->feat];
 857
 858                                 if (have_flag(f_ptr->flags, FF_BLDG))
 859                                 {
 860                                         if ((f_ptr->power == 4) || ((p_ptr->town_num == 1) && (f_ptr->power == 0)))
 861                                         {
 862                                                 if (c_ptr->m_idx) delete_monster_idx(c_ptr->m_idx);
 863                                                 p_ptr->oldpy = y;
 864                                                 p_ptr->oldpx = x;
 865                                         }
 866                                 }
 867                         }
 868                 }
 869                 p_ptr->teleport_town = FALSE;
 870         }
 871
 872         else if (p_ptr->leaving_dungeon)
 873         {
 874                 for (y = 0; y < cur_hgt; y++)
 875                 {
 876                         for (x = 0; x < cur_wid; x++)
 877                         {
 878                                 /* Get the cave grid */
 879                                 c_ptr = &cave[y][x];
 880
 881                                 if (have_flag(f_flags_grid(c_ptr), FF_ENTRANCE))
 882                                 {
 883                                         if (c_ptr->m_idx) delete_monster_idx(c_ptr->m_idx);
 884                                         p_ptr->oldpy = y;
 885                                         p_ptr->oldpx = x;
 886                                 }
 887                         }
 888                 }
 889                 p_ptr->teleport_town = FALSE;
 890         }
 891
 892         player_place(p_ptr->oldpy, p_ptr->oldpx);
 893         /* p_ptr->leaving_dungeon = FALSE;*/
 894
 895         lim = (generate_encounter==TRUE)?40:MIN_M_ALLOC_TN;
 896
 897         /* Make some residents */
 898         for (i = 0; i < lim; i++)
 899         {
 900                 u32b mode = 0;
 901
 902                 if (!(generate_encounter || (one_in_(2) && (!p_ptr->town_num))))
 903                         mode |= PM_ALLOW_SLEEP;
 904
 905                 /* Make a resident */
 906                 (void)alloc_monster(generate_encounter ? 0 : 3, mode);
 907         }
 908
 909         if(generate_encounter) ambush_flag = TRUE;
 910         generate_encounter = FALSE;
 911
 912         /* Fill the arrays of floors and walls in the good proportions */
 913         set_floor_and_wall(0);
 914
 915         /* Set rewarded quests to finished */
 916         for (i = 0; i < max_quests; i++)
 917         {
 918                 if (quest[i].status == QUEST_STATUS_REWARDED)
 919                         quest[i].status = QUEST_STATUS_FINISHED;
 920         }
 921 }
 922
 923
 924 /*
 925  * Build the wilderness area.
 926  * -DG-
 927  */
 928 void wilderness_gen_small()
 929 {
 930         int i, j;
 931
 932         /* To prevent stupid things */
 933         for (i = 0; i < MAX_WID; i++)
 934         for (j = 0; j < MAX_HGT; j++)
 935         {
 936                 cave[j][i].feat = FEAT_PERM_SOLID;
 937         }
 938
 939         /* Init the wilderness */
 940         process_dungeon_file("w_info.txt", 0, 0, max_wild_y, max_wild_x);
 941
 942         /* Fill the map */
 943         for (i = 0; i < max_wild_x; i++)
 944         for (j = 0; j < max_wild_y; j++)
 945         {
 946                 if (wilderness[j][i].town && (wilderness[j][i].town != NO_TOWN))
 947                 {
 948                         cave[j][i].feat = FEAT_TOWN;
 949                         cave[j][i].special = wilderness[j][i].town;
 950                 }
 951                 else if (wilderness[j][i].road) cave[j][i].feat = FEAT_FLOOR;
 952                 else if (wilderness[j][i].entrance && (p_ptr->total_winner || !(d_info[wilderness[j][i].entrance].flags1 & DF1_WINNER)))
 953                 {
 954                         cave[j][i].feat = FEAT_ENTRANCE;
 955                         cave[j][i].special = (byte)wilderness[j][i].entrance;
 956                 }
 957                 else cave[j][i].feat = conv_terrain2feat[wilderness[j][i].terrain];
 958
 959                 cave[j][i].info |= (CAVE_GLOW | CAVE_MARK);
 960         }
 961
 962         cur_hgt = (s16b) max_wild_y;
 963         cur_wid = (s16b) max_wild_x;
 964
 965         if (cur_hgt > MAX_HGT) cur_hgt = MAX_HGT;
 966         if (cur_wid > MAX_WID) cur_wid = MAX_WID;
 967
 968         /* Assume illegal panel */
 969         panel_row_min = cur_hgt;
 970         panel_col_min = cur_wid;
 971
 972         /* Place the player */
 973         px = p_ptr->wilderness_x;
 974         py = p_ptr->wilderness_y;
 975
 976         p_ptr->town_num = 0;
 977 }
 978
 979
 980 typedef struct wilderness_grid wilderness_grid;
 981
 982 struct wilderness_grid
 983 {
 984         int             terrain;    /* Terrain type */
 985         int             town;       /* Town number */
 986         s16b    level;          /* Level of the wilderness */
 987         byte    road;       /* Road */
 988         char    name[32];       /* Name of the town/wilderness */
 989 };
 990
 991
 992 static wilderness_grid w_letter[255];
 993
 994
 995 /*
 996  * Parse a sub-file of the "extra info"
 997  */
 998 errr parse_line_wilderness(char *buf, int ymin, int xmin, int ymax, int xmax, int *y, int *x)
 999 {
1000         int i, num;
1001         char *zz[33];
1002
1003         /* Unused */
1004         (void)ymin;
1005         (void)ymax;
1006
1007         /* Paranoia */
1008         if (!(buf[0] == 'W')) return (PARSE_ERROR_GENERIC);
1009
1010         switch (buf[2])
1011         {
1012                 /* Process "W:F:<letter>:<terrain>:<town>:<road>:<name> */
1013 #ifdef JP
1014         case 'E':
1015                 return 0;
1016         case 'F':
1017         case 'J':
1018 #else
1019         case 'J':
1020                 return 0;
1021         case 'F':
1022         case 'E':
1023 #endif
1024         {
1025                 if ((num = tokenize(buf+4, 6, zz, 0)) > 1)
1026                 {
1027                         int index = zz[0][0];
1028
1029                         if (num > 1)
1030                                 w_letter[index].terrain = atoi(zz[1]);
1031                         else
1032                                 w_letter[index].terrain = 0;
1033
1034                         if (num > 2)
1035                                 w_letter[index].level = atoi(zz[2]);
1036                         else
1037                                 w_letter[index].level = 0;
1038
1039                         if (num > 3)
1040                                 w_letter[index].town = atoi(zz[3]);
1041                         else
1042                                 w_letter[index].town = 0;
1043
1044                         if (num > 4)
1045                                 w_letter[index].road = atoi(zz[4]);
1046                         else
1047                                 w_letter[index].road = 0;
1048
1049                         if (num > 5)
1050                                 strcpy(w_letter[index].name, zz[5]);
1051                         else
1052                                 w_letter[index].name[0] = 0;
1053                 }
1054                 else
1055                 {
1056                                 /* Failure */
1057                         return (PARSE_ERROR_TOO_FEW_ARGUMENTS);
1058                 }
1059
1060                 break;
1061         }
1062
1063         /* Process "W:D:<layout> */
1064         /* Layout of the wilderness */
1065         case 'D':
1066         {
1067                 /* Acquire the text */
1068                 char *s = buf+4;
1069
1070                 /* Length of the text */
1071                 int len = strlen(s);
1072
1073                 for (*x = xmin, i = 0; ((*x < xmax) && (i < len)); (*x)++, s++, i++)
1074                 {
1075                         int idx = s[0];
1076
1077                         wilderness[*y][*x].terrain = w_letter[idx].terrain;
1078
1079                         wilderness[*y][*x].level = w_letter[idx].level;
1080
1081                         wilderness[*y][*x].town = w_letter[idx].town;
1082
1083                         wilderness[*y][*x].road = w_letter[idx].road;
1084
1085                         strcpy(town[w_letter[idx].town].name, w_letter[idx].name);
1086                 }
1087
1088                 (*y)++;
1089
1090                 break;
1091         }
1092
1093         /* Process "W:P:<x>:<y> - starting position in the wilderness */
1094         case 'P':
1095         {
1096                 if ((p_ptr->wilderness_x == 0) &&
1097                     (p_ptr->wilderness_y == 0))
1098                 {
1099                         if (tokenize(buf+4, 2, zz, 0) == 2)
1100                         {
1101                                 p_ptr->wilderness_y = atoi(zz[0]);
1102                                 p_ptr->wilderness_x = atoi(zz[1]);
1103
1104                                 if ((p_ptr->wilderness_x < 1) ||
1105                                     (p_ptr->wilderness_x > max_wild_x) ||
1106                                     (p_ptr->wilderness_y < 1) ||
1107                                     (p_ptr->wilderness_y > max_wild_y))
1108                                 {
1109                                         return (PARSE_ERROR_OUT_OF_BOUNDS);
1110                                 }
1111                         }
1112                         else
1113                         {
1114                                 return (PARSE_ERROR_TOO_FEW_ARGUMENTS);
1115                         }
1116                 }
1117
1118                 break;
1119         }
1120
1121         default:
1122                 /* Failure */
1123                 return (PARSE_ERROR_UNDEFINED_DIRECTIVE);
1124         }
1125
1126         for (i = 1; i < max_d_idx; i++)
1127         {
1128                 if (!d_info[i].maxdepth) continue;
1129                 wilderness[d_info[i].dy][d_info[i].dx].entrance = i;
1130                 if (!wilderness[d_info[i].dy][d_info[i].dx].town)
1131                         wilderness[d_info[i].dy][d_info[i].dx].level = d_info[i].mindepth;
1132         }
1133
1134         /* Success */
1135         return (0);
1136 }
1137
1138
1139 /*
1140  * Generate the random seeds for the wilderness
1141  */
1142 void seed_wilderness(void)
1143 {
1144         int x, y;
1145
1146         /* Init wilderness seeds */
1147         for (x = 0; x < max_wild_x; x++)
1148         {
1149                 for (y = 0; y < max_wild_y; y++)
1150                 {
1151                         wilderness[y][x].seed = randint0(0x10000000);
1152                         wilderness[y][x].entrance = 0;
1153                 }
1154         }
1155 }
1156
1157
1158 /*
1159  * Pointer to wilderness_type
1160  */
1161 typedef wilderness_type *wilderness_type_ptr;
1162
1163 /*
1164  * Initialize wilderness array
1165  */
1166 errr init_wilderness(void)
1167 {
1168         int i;
1169
1170         /* Allocate the wilderness (two-dimension array) */
1171         C_MAKE(wilderness, max_wild_y, wilderness_type_ptr);
1172         C_MAKE(wilderness[0], max_wild_x * max_wild_y, wilderness_type);
1173
1174         /* Init the other pointers */
1175         for (i = 1; i < max_wild_y; i++)
1176                 wilderness[i] = wilderness[0] + i * max_wild_x;
1177
1178         generate_encounter = FALSE;
1179
1180         return 0;
1181 }
1182
1183
1184 bool change_wild_mode(void)
1185 {
1186         int i;
1187         bool have_pet = FALSE;
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         if (!p_ptr->wild_mode)
1199         {
1200                 for (i = 1; i < m_max; i++)
1201                 {
1202                         monster_type *m_ptr = &m_list[i];
1203
1204                         if (!m_ptr->r_idx) continue;
1205                         if (is_pet(m_ptr) && i != p_ptr->riding) have_pet = TRUE;
1206                         if (m_ptr->csleep) continue;
1207                         if (m_ptr->cdis > MAX_SIGHT) continue;
1208                         if (!is_hostile(m_ptr)) continue;
1209 #ifdef JP
1210                         msg_print("Å¨¤¬¤¹¤°¶á¤¯¤Ë¤¤¤ë¤È¤¤Ï¹°è¥Þ¥Ã¥×¤ËÆþ¤ì¤Ê¤¤¡ª");
1211 #else
1212                         msg_print("You cannot enter global map, since there is some monsters nearby!");
1213 #endif
1214                         energy_use = 0;
1215                         return FALSE;
1216                 }
1217
1218                 if (have_pet)
1219                 {
1220 #ifdef JP
1221                         if(!get_check_strict("¥Ú¥Ã¥È¤òÃÖ¤¤¤Æ¹°è¥Þ¥Ã¥×¤ËÆþ¤ê¤Þ¤¹¤«¡©", CHECK_OKAY_CANCEL))
1222 #else
1223                         if(!get_check_strict("Do you leave your pets behind? ", CHECK_OKAY_CANCEL))
1224 #endif
1225                         {
1226                                 energy_use = 0;
1227                                 return FALSE;
1228                         }
1229                 }
1230
1231                 energy_use = 1000;
1232         }
1233
1234         set_action(ACTION_NONE);
1235
1236         p_ptr->wild_mode = !p_ptr->wild_mode;
1237
1238         /* Leaving */
1239         p_ptr->leaving = TRUE;
1240
1241         return TRUE;
1242 }