main/gamemine.c

   1 /* $Id: */
   2 /*
   3 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
   4 SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO
   5 END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
   6 ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
   7 IN USING, DISPLAYING,  AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
   8 SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
   9 FREE PURPOSES.  IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
  10 CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES.  THE END-USER UNDERSTANDS
  11 AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
  12 COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
  13 */
  14
  15 #ifdef HAVE_CONFIG_H
  16 #include <conf.h>
  17 #endif
  18
  19 #ifdef RCS
  20 static char rcsid[] = "$Id: gamemine.c,v 1.13 2002-08-07 22:38:58 btb Exp $";
  21 #endif
  22
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <math.h>
  26 #include <string.h>
  27
  28 #include "pstypes.h"
  29 #include "mono.h"
  30
  31 #include "inferno.h"
  32 #include "segment.h"
  33 #include "textures.h"
  34 #include "wall.h"
  35 #include "object.h"
  36 #include "gamemine.h"
  37 #include "error.h"
  38 #include "gameseg.h"
  39 #include "switch.h"
  40
  41 #include "game.h"
  42 #include "newmenu.h"
  43
  44 #ifdef EDITOR
  45 #include "editor/editor.h"
  46 #endif
  47
  48 #include "cfile.h"
  49 #include "fuelcen.h"
  50
  51 #include "hash.h"
  52 #include "key.h"
  53 #include "piggy.h"
  54
  55 #include "byteswap.h"
  56 #include "gamesave.h"
  57
  58 #define REMOVE_EXT(s)  (*(strchr( (s), '.' ))='\0')
  59
  60 fix Level_shake_frequency = 0, Level_shake_duration = 0;
  61 int Secret_return_segment = 0;
  62 vms_matrix Secret_return_orient;
  63
  64 struct mtfi mine_top_fileinfo;    // Should be same as first two fields below...
  65 struct mfi mine_fileinfo;
  66 struct mh mine_header;
  67 struct me mine_editor;
  68
  69 typedef struct v16_segment {
  70         #ifdef EDITOR
  71         short   segnum;             // segment number, not sure what it means
  72         #endif
  73         side    sides[MAX_SIDES_PER_SEGMENT];       // 6 sides
  74         short   children[MAX_SIDES_PER_SEGMENT];    // indices of 6 children segments, front, left, top, right, bottom, back
  75         short   verts[MAX_VERTICES_PER_SEGMENT];    // vertex ids of 4 front and 4 back vertices
  76         #ifdef  EDITOR
  77         short   group;              // group number to which the segment belongs.
  78         #endif
  79         short   objects;            // pointer to objects in this segment
  80         ubyte   special;            // what type of center this is
  81         byte    matcen_num;         // which center segment is associated with.
  82         short   value;
  83         fix     static_light;       // average static light in segment
  84         #ifndef EDITOR
  85         short   pad;                // make structure longword aligned
  86         #endif
  87 } v16_segment;
  88
  89 struct mfi_v19 {
  90         ushort  fileinfo_signature;
  91         ushort  fileinfo_version;
  92         int     fileinfo_sizeof;
  93         int     header_offset;      // Stuff common to game & editor
  94         int     header_size;
  95         int     editor_offset;      // Editor specific stuff
  96         int     editor_size;
  97         int     segment_offset;
  98         int     segment_howmany;
  99         int     segment_sizeof;
 100         int     newseg_verts_offset;
 101         int     newseg_verts_howmany;
 102         int     newseg_verts_sizeof;
 103         int     group_offset;
 104         int     group_howmany;
 105         int     group_sizeof;
 106         int     vertex_offset;
 107         int     vertex_howmany;
 108         int     vertex_sizeof;
 109         int     texture_offset;
 110         int     texture_howmany;
 111         int     texture_sizeof;
 112         int     walls_offset;
 113         int     walls_howmany;
 114         int     walls_sizeof;
 115         int     triggers_offset;
 116         int     triggers_howmany;
 117         int     triggers_sizeof;
 118         int     links_offset;
 119         int     links_howmany;
 120         int     links_sizeof;
 121         int     object_offset;      // Object info
 122         int     object_howmany;
 123         int     object_sizeof;
 124         int     unused_offset;      // was: doors_offset
 125         int     unused_howmamy;     // was: doors_howmany
 126         int     unused_sizeof;      // was: doors_sizeof
 127         short   level_shake_frequency;  // Shakes every level_shake_frequency seconds
 128         short   level_shake_duration;   // for level_shake_duration seconds (on average, random).  In 16ths second.
 129         int     secret_return_segment;
 130         vms_matrix  secret_return_orient;
 131
 132         int     dl_indices_offset;
 133         int     dl_indices_howmany;
 134         int     dl_indices_sizeof;
 135
 136         int     delta_light_offset;
 137         int     delta_light_howmany;
 138         int     delta_light_sizeof;
 139
 140 };
 141
 142 int CreateDefaultNewSegment();
 143
 144 #define TMAP_NUM_MASK 0x3FFF
 145
 146 /* converts descent 1 texture numbers to descent 2 texture numbers
 147  * textures whose names don't match between versions have extra spaces around "return"
 148  */
 149 short convert_d1_tmap_num(short d1_tmap_num) {
 150         switch (d1_tmap_num) {
 151         case   0:  return  43; // grey
 152         case   1: return 0;
 153         case   2:  return  43; // grey
 154         case   3: return 1;
 155         case   4:  return  43; // grey
 156         case   5:  return  43; // grey
 157         case   6:  return  270; // blue
 158         case   7:  return  271; // yellow
 159         case   8: return 2;
 160         case   9:  return  62; // purple
 161         case  10:  return  272; // red
 162         case  11:  return  117;
 163         case  12:  return  12;
 164         case  13: return 3;
 165         case  14: return 4;
 166         case  15: return 5;
 167         case  16: return 6;
 168         case  17:  return  17;
 169         case  18:  return  18;
 170         case  19: return 7;
 171         case  20:  return  22;
 172         case  21:  return  9;
 173         case  22: return 8;
 174         case  23: return 9;
 175         case  24: return 10;
 176         case  25:  return  12;
 177         case  26: return 11;
 178         case  27: return 12;
 179         case  28:  return  11;
 180         case  29: return 13;
 181         case  30: return 14;
 182         case  31: return 15;
 183         case  32: return 16;
 184         case  33: return 17;
 185         case  34: return 18;
 186         case  35: return 19;
 187         case  36: return 20;
 188         case  37: return 21;
 189         case  38:  return  163;
 190         case  39:  return  31;
 191         case  40: return 22;
 192         case  41:  return  266;
 193         case  42: return 23;
 194         case  43: return 24;
 195         case  44:  return  136;
 196         case  45: return 25;
 197         case  46: return 26;
 198         case  47: return 27;
 199         case  48: return 28;
 200         case  49:  return  43;
 201         case  50:  return  131;
 202         case  51: return 29;
 203         case  52: return 30;
 204         case  53: return 31;
 205         case  54: return 32;
 206         case  55:  return  165;
 207         case  56: return 33;
 208         case  57:  return  132;
 209         case  58: return 34;
 210         case  59: return 35;
 211         case  60: return 36;
 212         case  61: return 37;
 213         case  62: return 38;
 214         case  63: return 39;
 215         case  64: return 40;
 216         case  65: return 41;
 217         case  66: return 42;
 218         case  67: return 43;
 219         case  68: return 44;
 220         case  69: return 45;
 221         case  70: return 46;
 222         case  71: return 47;
 223         case  72: return 48;
 224         case  73: return 49;
 225         case  74: return 50;
 226         case  75: return 51;
 227         case  76: return 52;
 228         case  77: return 53;
 229         case  78: return 54;
 230         case  79: return 55;
 231         case  80: return 56;
 232         case  81: return 57;
 233         case  82: return 58;
 234         case  83: return 59;
 235         case  84: return 60;
 236         case  85: return 61;
 237         case  86: return 62;
 238         case  87: return 63;
 239         case  88:  return  66;
 240         case  89: return 64;
 241         case  90: return 65;
 242         case  91: return 66;
 243         case  92: return 67;
 244         case  93: return 68;
 245         case  94: return 69;
 246         case  95: return 70;
 247         case  96: return 71;
 248         case  97: return 72;
 249         case  98: return 73;
 250         case  99: return 74;
 251         case 100: return 75;
 252         case 101: return 76;
 253         case 102: return 77;
 254         case 103: return 78;
 255         case 104: return 79;
 256         case 105: return 80;
 257         case 106: return 81;
 258         case 107: return 82;
 259         case 108: return 83;
 260         case 109: return 84;
 261         case 110: return 85;
 262         case 111: return 86;
 263         case 112: return 87;
 264         case 113: return 88;
 265         case 114: return 89;
 266         case 115: return 90;
 267         case 116: return 91;
 268         case 117: return 92;
 269         case 118: return 93;
 270         case 119: return 94;
 271         case 120: return 95;
 272         case 121: return 96;
 273         case 122: return 97;
 274         case 123: return 98;
 275         case 124: return 99;
 276         case 125: return 100;
 277         case 126: return 101;
 278         case 127: return 102;
 279         case 128: return 103;
 280         case 129: return 104;
 281         case 130: return 105;
 282         case 131: return 106;
 283         case 132:  return  108;
 284         case 133: return 107;
 285         case 134: return 108;
 286         case 135: return 109;
 287         case 136: return 110;
 288         case 137: return 111;
 289         case 138: return 112;
 290         case 139: return 113;
 291         case 140: return 114;
 292         case 141:  return  110;
 293         case 142: return 115;
 294         case 143: return 116;
 295         case 144: return 117;
 296         case 145: return 118;
 297         case 146: return 119;
 298         case 147:  return  111;
 299         case 148: return 120;
 300         case 149: return 121;
 301         case 150: return 122;
 302         case 151: return 123;
 303         case 152: return 124;
 304         case 153: return 125;
 305         case 154:  return  82;
 306         case 155:  return  66;
 307         case 156: return 200;
 308         case 157: return 201;
 309         case 158:  return  186;
 310         case 159:  return  190;
 311         case 160:  return  206;
 312         case 161:  return  114;
 313         case 162: return 202;
 314         case 163: return 203;
 315         case 164: return 204;
 316         case 165: return 205;
 317         case 166: return 206;
 318         case 167:  return  206;
 319         case 168:  return  206;
 320         case 169:  return  206;
 321         case 170:  return  206;
 322         case 171:  return  227;
 323         case 172: return 207;
 324         case 173: return 208;
 325         case 174:  return  202;
 326         case 175:  return  206;
 327         case 176: return 209;
 328         case 177: return 210;
 329         case 178: return 211;
 330         case 179: return 212;
 331         case 180: return 213;
 332         case 181: return 214;
 333         case 182: return 215;
 334         case 183: return 216;
 335         case 184: return 217;
 336         case 185:  return  325;
 337         case 186: return 218;
 338         case 187: return 219;
 339         case 188: return 220;
 340         case 189: return 221;
 341         case 190: return 222;
 342         case 191: return 223;
 343         case 192: return 224;
 344         case 193:  return  206;
 345         case 194:  return  206;
 346         case 195:  return  234;
 347         case 196: return 225;
 348         case 197: return 226;
 349         case 198:  return  225;
 350         case 199:  return  206;
 351         case 200:  return  206;
 352         case 201: return 227;
 353         case 202:  return  206;
 354         case 203: return 228;
 355         case 204: return 229;
 356         case 205: return 230;
 357         case 206: return 231;
 358         case 207: return 232;
 359         case 208: return 233;
 360         case 209: return 234;
 361         case 210:  return  234;
 362         case 211:  return  206;
 363         case 212: return 235;
 364         case 213: return 236;
 365         case 214: return 237;
 366         case 215: return 238;
 367         case 216: return 239;
 368         case 217: return 240;
 369         case 218: return 241;
 370         case 219: return 242;
 371         case 220:  return  242;
 372         case 221: return 243;
 373         case 222: return 244;
 374         case 223: return  313;
 375         case 224: return 245;
 376         case 225: return 246;
 377         case 226: return 247;
 378         case 227:  return  179;
 379         case 228: return 248;
 380         case 229:  return  15;
 381         case 230:  return  15;
 382         case 231: return 249;
 383         case 232: return 250;
 384         case 233: return 251;
 385         case 234: return 252;
 386         case 235: return 253;
 387         case 236: return 254;
 388         case 237: return 255;
 389         case 238: return 256;
 390         case 239: return 257;
 391         case 240:  return  6;
 392         case 241:  return  130;
 393         case 242:  return  78;
 394         case 243:  return  33;
 395         case 244: return 258;
 396         case 245: return 259;
 397         case 246:  return  321;
 398         case 247: return 260;
 399         case 248: return 261;
 400         case 249: return 262;
 401         case 250: return  340; // white entrance
 402         case 251: return  412; // red entrance
 403         case 252: return  410; // blue entrance
 404         case 253: return  411; // yellow entrance
 405         case 254: return 263;
 406         case 255: return 264;
 407         case 256: return 265;
 408         case 257:  return  246;
 409         case 258:  return  246;
 410         case 259:  return  246;
 411         case 260:  return  246;
 412         case 261: return 273;
 413         case 262: return 274;
 414         case 263:  return  281;
 415         case 264: return 275;
 416         case 265: return 276;
 417         case 266:  return  279;
 418         case 267: return 277;
 419         case 268: return 278;
 420         case 269: return 279;
 421         case 270: return 280;
 422         case 271: return 281;
 423         case 272: return 282;
 424         case 273: return 283;
 425         case 274: return 284;
 426         case 275: return 285;
 427         case 276: return 286;
 428         case 277: return 287;
 429         case 278: return 288;
 430         case 279: return 289;
 431         case 280: return 290;
 432         case 281: return 291;
 433         case 282: return 293;
 434         case 283:  return  295;
 435         case 284: return 295;
 436         case 285: return 296;
 437         case 286: return 298;
 438         case 287: return 300;
 439         case 288: return 301;
 440         case 289: return 302;
 441         case 290: return 303;
 442         case 291: return 304;
 443         case 292: return 305;
 444         case 293: return 306;
 445         case 294: return 307;
 446         case 295: return 308;
 447         case 296: return 309;
 448         case 297: return 310;
 449         case 298:  return  364;
 450         case 299: return 311;
 451         case 300: return 312;
 452         case 301: return 313;
 453         case 302: return 314;
 454         case 303: return 315;
 455         case 304: return 316;
 456         case 305: return 317;
 457         case 306: return 318;
 458         case 307: return 319;
 459         case 308: return 320;
 460         case 309: return 321;
 461         case 310: return 322;
 462         case 311: return 323;
 463         case 312: return 324;
 464         case 313: return 325;
 465         case 314: return 326;
 466         case 315:  return  361; // broken producer
 467         case 316: return 327;
 468         case 317: return 328;
 469         case 318: return 329;
 470         case 319: return 330;
 471         case 320: return 331;
 472         case 321: return 332;
 473         case 322: return 333;
 474         case 323: return 334;
 475         case 324: return 335;
 476         case 325: return 336;
 477         case 326: return 337;
 478         case 327: return 352;
 479         case 328: return 353;
 480         case 329: return 354;
 481         case 330:  return  366;
 482         case 331: return 373;
 483         case 332: return 344;
 484         case 333: return   409; // lava
 485         case 334: return 356;
 486         case 335: return 357;
 487         case 336: return 358;
 488         case 337: return 359;
 489         case 338: return 360;
 490         case 339: return 361;
 491         case 340: return 362;
 492         case 341: return 364;
 493         case 342: return 363;
 494         case 343: return 366;
 495         case 344: return 365;
 496         case 345: return 368;
 497         case 346: return 376;
 498         case 347: return 370;
 499         case 348: return 367;
 500         case 349:  return  370;
 501         case 350: return 369;
 502         case 351: return 429;
 503         case 352: return 387;
 504         case 353: return 371;
 505         case 354: return 425;
 506         case 355:  return  408;
 507         case 356: return 378; // lava02
 508         case 357: return 384;
 509         case 358: return 385;
 510         case 359: return 386;
 511         case 360: return 386;
 512         case 361: return 387;
 513         case 362:  return  388; // mntr04a
 514         case 363: return 388;
 515         case 364: return 391;
 516         case 365: return 392;
 517         case 366: return 393;
 518         case 367: return 394;
 519         case 368: return 395;
 520         case 369: return 396;
 521         case 370:  return  392; // mntr04b
 522         default:
 523                 if (d1_tmap_num > 370 && d1_tmap_num < 584) // wall01 and door frames
 524                         return d1_tmap_num + 64;
 525                 { // the following case (orientation != 0) occurs rarely
 526                         short tmap_num = d1_tmap_num &  TMAP_NUM_MASK;
 527                         short orient = d1_tmap_num & ~TMAP_NUM_MASK;
 528                         if (orient == 0) {
 529                                 mprintf((0, "Warning: convert_d1_tmap_num doesn't know tmap #%d.", tmap_num));
 530                                 return d1_tmap_num;
 531                         } else {
 532                                 return orient | convert_d1_tmap_num(tmap_num);
 533                         }
 534                 }
 535         }
 536 }
 537
 538 #ifdef EDITOR
 539
 540 static char old_tmap_list[MAX_TEXTURES][FILENAME_LEN];
 541 short tmap_xlate_table[MAX_TEXTURES];
 542 static short tmap_times_used[MAX_TEXTURES];
 543
 544 // -----------------------------------------------------------------------------
 545 //loads from an already-open file
 546 // returns 0=everything ok, 1=old version, -1=error
 547 int load_mine_data(CFILE *LoadFile)
 548 {
 549         int   i, j,oldsizeadjust;
 550         short tmap_xlate;
 551         int     translate;
 552         char    *temptr;
 553         int     mine_start = cftell(LoadFile);
 554
 555         oldsizeadjust=(sizeof(int)*2)+sizeof (vms_matrix);
 556         fuelcen_reset();
 557
 558         for (i=0; i<MAX_TEXTURES; i++ )
 559                 tmap_times_used[i] = 0;
 560
 561         #ifdef EDITOR
 562         // Create a new mine to initialize things.
 563         //texpage_goto_first();
 564         create_new_mine();
 565         #endif
 566
 567         //===================== READ FILE INFO ========================
 568
 569         // These are the default values... version and fileinfo_sizeof
 570         // don't have defaults.
 571         mine_fileinfo.header_offset     =   -1;
 572         mine_fileinfo.header_size       =   sizeof(mine_header);
 573         mine_fileinfo.editor_offset     =   -1;
 574         mine_fileinfo.editor_size       =   sizeof(mine_editor);
 575         mine_fileinfo.vertex_offset     =   -1;
 576         mine_fileinfo.vertex_howmany    =   0;
 577         mine_fileinfo.vertex_sizeof     =   sizeof(vms_vector);
 578         mine_fileinfo.segment_offset    =   -1;
 579         mine_fileinfo.segment_howmany   =   0;
 580         mine_fileinfo.segment_sizeof    =   sizeof(segment);
 581         mine_fileinfo.newseg_verts_offset     =   -1;
 582         mine_fileinfo.newseg_verts_howmany    =   0;
 583         mine_fileinfo.newseg_verts_sizeof     =   sizeof(vms_vector);
 584         mine_fileinfo.group_offset                =     -1;
 585         mine_fileinfo.group_howmany       =     0;
 586         mine_fileinfo.group_sizeof                =     sizeof(group);
 587         mine_fileinfo.texture_offset    =   -1;
 588         mine_fileinfo.texture_howmany   =   0;
 589         mine_fileinfo.texture_sizeof    =   FILENAME_LEN;  // num characters in a name
 590         mine_fileinfo.walls_offset                =     -1;
 591         mine_fileinfo.walls_howmany       =     0;
 592         mine_fileinfo.walls_sizeof                =     sizeof(wall);
 593         mine_fileinfo.triggers_offset     =     -1;
 594         mine_fileinfo.triggers_howmany  =       0;
 595         mine_fileinfo.triggers_sizeof     =     sizeof(trigger);
 596         mine_fileinfo.object_offset             =       -1;
 597         mine_fileinfo.object_howmany            =       1;
 598         mine_fileinfo.object_sizeof             =       sizeof(object);
 599
 600         mine_fileinfo.level_shake_frequency             =       0;
 601         mine_fileinfo.level_shake_duration              =       0;
 602
 603         //      Delta light stuff for blowing out light sources.
 604 //      if (mine_top_fileinfo.fileinfo_version >= 19) {
 605                 mine_fileinfo.dl_indices_offset         =       -1;
 606                 mine_fileinfo.dl_indices_howmany                =       0;
 607                 mine_fileinfo.dl_indices_sizeof         =       sizeof(dl_index);
 608
 609                 mine_fileinfo.delta_light_offset                =       -1;
 610                 mine_fileinfo.delta_light_howmany               =       0;
 611                 mine_fileinfo.delta_light_sizeof                =       sizeof(delta_light);
 612
 613 //      }
 614
 615         mine_fileinfo.segment2_offset           = -1;
 616         mine_fileinfo.segment2_howmany  = 0;
 617         mine_fileinfo.segment2_sizeof    = sizeof(segment2);
 618
 619         // Read in mine_top_fileinfo to get size of saved fileinfo.
 620
 621         memset( &mine_top_fileinfo, 0, sizeof(mine_top_fileinfo) );
 622
 623         if (cfseek( LoadFile, mine_start, SEEK_SET ))
 624                 Error( "Error moving to top of file in gamemine.c" );
 625
 626         if (cfread( &mine_top_fileinfo, sizeof(mine_top_fileinfo), 1, LoadFile )!=1)
 627                 Error( "Error reading mine_top_fileinfo in gamemine.c" );
 628
 629         if (mine_top_fileinfo.fileinfo_signature != 0x2884)
 630                 return -1;
 631
 632         // Check version number
 633         if (mine_top_fileinfo.fileinfo_version < COMPATIBLE_VERSION )
 634                 return -1;
 635
 636         // Now, Read in the fileinfo
 637         if (cfseek( LoadFile, mine_start, SEEK_SET ))
 638                 Error( "Error seeking to top of file in gamemine.c" );
 639
 640         if (cfread( &mine_fileinfo, mine_top_fileinfo.fileinfo_sizeof, 1, LoadFile )!=1)
 641                 Error( "Error reading mine_fileinfo in gamemine.c" );
 642
 643         if (mine_top_fileinfo.fileinfo_version < 18) {
 644                 mprintf((1, "Old version, setting shake intensity to 0.\n"));
 645                 Level_shake_frequency = 0;
 646                 Level_shake_duration = 0;
 647                 Secret_return_segment = 0;
 648                 Secret_return_orient = vmd_identity_matrix;
 649         } else {
 650                 Level_shake_frequency = mine_fileinfo.level_shake_frequency << 12;
 651                 Level_shake_duration = mine_fileinfo.level_shake_duration << 12;
 652                 Secret_return_segment = mine_fileinfo.secret_return_segment;
 653                 Secret_return_orient = mine_fileinfo.secret_return_orient;
 654         }
 655
 656         //===================== READ HEADER INFO ========================
 657
 658         // Set default values.
 659         mine_header.num_vertices        =   0;
 660         mine_header.num_segments        =   0;
 661
 662         if (mine_fileinfo.header_offset > -1 )
 663         {
 664                 if (cfseek( LoadFile, mine_fileinfo.header_offset, SEEK_SET ))
 665                         Error( "Error seeking to header_offset in gamemine.c" );
 666
 667                 if (cfread( &mine_header, mine_fileinfo.header_size, 1, LoadFile )!=1)
 668                         Error( "Error reading mine_header in gamemine.c" );
 669         }
 670
 671         //===================== READ EDITOR INFO ==========================
 672
 673         // Set default values
 674         mine_editor.current_seg         =   0;
 675         mine_editor.newsegment_offset   =   -1; // To be written
 676         mine_editor.newsegment_size     =   sizeof(segment);
 677         mine_editor.Curside             =   0;
 678         mine_editor.Markedsegp          =   -1;
 679         mine_editor.Markedside          =   0;
 680
 681         if (mine_fileinfo.editor_offset > -1 )
 682         {
 683                 if (cfseek( LoadFile, mine_fileinfo.editor_offset, SEEK_SET ))
 684                         Error( "Error seeking to editor_offset in gamemine.c" );
 685
 686                 if (cfread( &mine_editor, mine_fileinfo.editor_size, 1, LoadFile )!=1)
 687                         Error( "Error reading mine_editor in gamemine.c" );
 688         }
 689
 690         //===================== READ TEXTURE INFO ==========================
 691
 692         if ( (mine_fileinfo.texture_offset > -1) && (mine_fileinfo.texture_howmany > 0))
 693         {
 694                 if (cfseek( LoadFile, mine_fileinfo.texture_offset, SEEK_SET ))
 695                         Error( "Error seeking to texture_offset in gamemine.c" );
 696
 697                 for (i=0; i< mine_fileinfo.texture_howmany; i++ )
 698                 {
 699                         if (cfread( &old_tmap_list[i], mine_fileinfo.texture_sizeof, 1, LoadFile )!=1)
 700                                 Error( "Error reading old_tmap_list[i] in gamemine.c" );
 701                 }
 702         }
 703
 704         //=============== GENERATE TEXTURE TRANSLATION TABLE ===============
 705
 706         translate = 0;
 707
 708         Assert (NumTextures < MAX_TEXTURES);
 709
 710         {
 711                 hashtable ht;
 712
 713                 hashtable_init( &ht, NumTextures );
 714
 715                 // Remove all the file extensions in the textures list
 716
 717                 for (i=0;i<NumTextures;i++)     {
 718                         temptr = strchr(TmapInfo[i].filename, '.');
 719                         if (temptr) *temptr = '\0';
 720                         hashtable_insert( &ht, TmapInfo[i].filename, i );
 721                 }
 722
 723                 // For every texture, search through the texture list
 724                 // to find a matching name.
 725                 for (j=0;j<mine_fileinfo.texture_howmany;j++)   {
 726                         // Remove this texture name's extension
 727                         temptr = strchr(old_tmap_list[j], '.');
 728                         if (temptr) *temptr = '\0';
 729
 730                         tmap_xlate_table[j] = hashtable_search( &ht,old_tmap_list[j]);
 731                         if (tmap_xlate_table[j] < 0 )   {
 732                                 //tmap_xlate_table[j] = 0;
 733                                 // mprintf( (0, "Couldn't find texture '%s'\n", old_tmap_list[j] ));
 734                                 ;
 735                         }
 736                         if (tmap_xlate_table[j] != j ) translate = 1;
 737                         if (tmap_xlate_table[j] >= 0)
 738                                 tmap_times_used[tmap_xlate_table[j]]++;
 739                 }
 740
 741                 {
 742                         int count = 0;
 743                         for (i=0; i<MAX_TEXTURES; i++ )
 744                                 if (tmap_times_used[i])
 745                                         count++;
 746                         mprintf( (0, "This mine has %d unique textures in it (~%d KB)\n", count, (count*4096) /1024 ));
 747                 }
 748
 749                 // -- mprintf( (0, "Translate=%d\n", translate ));
 750
 751                 hashtable_free( &ht );
 752         }
 753
 754         //====================== READ VERTEX INFO ==========================
 755
 756         // New check added to make sure we don't read in too many vertices.
 757         if ( mine_fileinfo.vertex_howmany > MAX_VERTICES )
 758                 {
 759                 mprintf((0, "Num vertices exceeds maximum.  Loading MAX %d vertices\n", MAX_VERTICES));
 760                 mine_fileinfo.vertex_howmany = MAX_VERTICES;
 761                 }
 762
 763         if ( (mine_fileinfo.vertex_offset > -1) && (mine_fileinfo.vertex_howmany > 0))
 764         {
 765                 if (cfseek( LoadFile, mine_fileinfo.vertex_offset, SEEK_SET ))
 766                         Error( "Error seeking to vertex_offset in gamemine.c" );
 767
 768                 for (i=0; i< mine_fileinfo.vertex_howmany; i++ )
 769                 {
 770                         // Set the default values for this vertex
 771                         Vertices[i].x = 1;
 772                         Vertices[i].y = 1;
 773                         Vertices[i].z = 1;
 774
 775                         if (cfread( &Vertices[i], mine_fileinfo.vertex_sizeof, 1, LoadFile )!=1)
 776                                 Error( "Error reading Vertices[i] in gamemine.c" );
 777                 }
 778         }
 779
 780         //==================== READ SEGMENT INFO ===========================
 781
 782         // New check added to make sure we don't read in too many segments.
 783         if ( mine_fileinfo.segment_howmany > MAX_SEGMENTS ) {
 784                 mprintf((0, "Num segments exceeds maximum.  Loading MAX %d segments\n", MAX_SEGMENTS));
 785                 mine_fileinfo.segment_howmany = MAX_SEGMENTS;
 786                 mine_fileinfo.segment2_howmany = MAX_SEGMENTS;
 787         }
 788
 789         // [commented out by mk on 11/20/94 (weren't we supposed to hit final in October?) because it looks redundant.  I think I'll test it now...]  fuelcen_reset();
 790
 791         if ( (mine_fileinfo.segment_offset > -1) && (mine_fileinfo.segment_howmany > 0))        {
 792
 793                 if (cfseek( LoadFile, mine_fileinfo.segment_offset,SEEK_SET ))
 794
 795                         Error( "Error seeking to segment_offset in gamemine.c" );
 796
 797                 Highest_segment_index = mine_fileinfo.segment_howmany-1;
 798
 799                 for (i=0; i< mine_fileinfo.segment_howmany; i++ ) {
 800
 801                         // Set the default values for this segment (clear to zero )
 802                         //memset( &Segments[i], 0, sizeof(segment) );
 803
 804                         if (mine_top_fileinfo.fileinfo_version < 20) {
 805                                 v16_segment v16_seg;
 806
 807                                 Assert(mine_fileinfo.segment_sizeof == sizeof(v16_seg));
 808
 809                                 if (cfread( &v16_seg, mine_fileinfo.segment_sizeof, 1, LoadFile )!=1)
 810                                         Error( "Error reading segments in gamemine.c" );
 811
 812                                 #ifdef EDITOR
 813                                 Segments[i].segnum = v16_seg.segnum;
 814                                 // -- Segments[i].pad = v16_seg.pad;
 815                                 #endif
 816
 817                                 for (j=0; j<MAX_SIDES_PER_SEGMENT; j++)
 818                                         Segments[i].sides[j] = v16_seg.sides[j];
 819
 820                                 for (j=0; j<MAX_SIDES_PER_SEGMENT; j++)
 821                                         Segments[i].children[j] = v16_seg.children[j];
 822
 823                                 for (j=0; j<MAX_VERTICES_PER_SEGMENT; j++)
 824                                         Segments[i].verts[j] = v16_seg.verts[j];
 825
 826                                 Segment2s[i].special = v16_seg.special;
 827                                 Segment2s[i].value = v16_seg.value;
 828                                 Segment2s[i].s2_flags = 0;
 829                                 Segment2s[i].matcen_num = v16_seg.matcen_num;
 830                                 Segment2s[i].static_light = v16_seg.static_light;
 831                                 fuelcen_activate( &Segments[i], Segment2s[i].special );
 832
 833                         } else  {
 834                                 if (cfread( &Segments[i], mine_fileinfo.segment_sizeof, 1, LoadFile )!=1)
 835                                         Error("Unable to read segment %i\n", i);
 836                         }
 837
 838                         Segments[i].objects = -1;
 839                         #ifdef EDITOR
 840                         Segments[i].group = -1;
 841                         #endif
 842
 843                         if (mine_top_fileinfo.fileinfo_version < 15) {  //used old uvl ranges
 844                                 int sn,uvln;
 845
 846                                 for (sn=0;sn<MAX_SIDES_PER_SEGMENT;sn++)
 847                                         for (uvln=0;uvln<4;uvln++) {
 848                                                 Segments[i].sides[sn].uvls[uvln].u /= 64;
 849                                                 Segments[i].sides[sn].uvls[uvln].v /= 64;
 850                                                 Segments[i].sides[sn].uvls[uvln].l /= 32;
 851                                         }
 852                         }
 853
 854                         if (translate == 1)
 855                                 for (j=0;j<MAX_SIDES_PER_SEGMENT;j++) {
 856                                         unsigned short orient;
 857                                         tmap_xlate = Segments[i].sides[j].tmap_num;
 858                                         Segments[i].sides[j].tmap_num = tmap_xlate_table[tmap_xlate];
 859                                         if ((WALL_IS_DOORWAY(&Segments[i],j) & WID_RENDER_FLAG))
 860                                                 if (Segments[i].sides[j].tmap_num < 0)  {
 861                                                         mprintf( (0, "Couldn't find texture '%s' for Segment %d, side %d\n", old_tmap_list[tmap_xlate],i,j));
 862                                                         Int3();
 863                                                         Segments[i].sides[j].tmap_num = NumTextures-1;
 864                                                 }
 865                                         tmap_xlate = Segments[i].sides[j].tmap_num2 & TMAP_NUM_MASK;
 866                                         orient = Segments[i].sides[j].tmap_num2 & (~TMAP_NUM_MASK);
 867                                         if (tmap_xlate != 0) {
 868                                                 int xlated_tmap = tmap_xlate_table[tmap_xlate];
 869
 870                                                 if ((WALL_IS_DOORWAY(&Segments[i],j) & WID_RENDER_FLAG))
 871                                                         if (xlated_tmap <= 0)   {
 872                                                                 mprintf( (0, "Couldn't find texture '%s' for Segment %d, side %d\n", old_tmap_list[tmap_xlate],i,j));
 873                                                                 Int3();
 874                                                                 Segments[i].sides[j].tmap_num2 = NumTextures-1;
 875                                                         }
 876                                                 Segments[i].sides[j].tmap_num2 = xlated_tmap | orient;
 877                                         }
 878                                 }
 879                 }
 880
 881
 882                 if (mine_top_fileinfo.fileinfo_version >= 20)
 883                         for (i=0; i<=Highest_segment_index; i++) {
 884                                 cfread(&Segment2s[i], sizeof(segment2), 1, LoadFile);
 885                                 fuelcen_activate( &Segments[i], Segment2s[i].special );
 886                         }
 887         }
 888
 889         //===================== READ NEWSEGMENT INFO =====================
 890
 891         #ifdef EDITOR
 892
 893         {               // Default segment created.
 894                 vms_vector      sizevec;
 895                 med_create_new_segment(vm_vec_make(&sizevec,DEFAULT_X_SIZE,DEFAULT_Y_SIZE,DEFAULT_Z_SIZE));             // New_segment = Segments[0];
 896                 //memset( &New_segment, 0, sizeof(segment) );
 897         }
 898
 899         if (mine_editor.newsegment_offset > -1)
 900         {
 901                 if (cfseek( LoadFile, mine_editor.newsegment_offset,SEEK_SET ))
 902                         Error( "Error seeking to newsegment_offset in gamemine.c" );
 903                 if (cfread( &New_segment, mine_editor.newsegment_size,1,LoadFile )!=1)
 904                         Error( "Error reading new_segment in gamemine.c" );
 905         }
 906
 907         if ( (mine_fileinfo.newseg_verts_offset > -1) && (mine_fileinfo.newseg_verts_howmany > 0))
 908         {
 909                 if (cfseek( LoadFile, mine_fileinfo.newseg_verts_offset, SEEK_SET ))
 910                         Error( "Error seeking to newseg_verts_offset in gamemine.c" );
 911                 for (i=0; i< mine_fileinfo.newseg_verts_howmany; i++ )
 912                 {
 913                         // Set the default values for this vertex
 914                         Vertices[NEW_SEGMENT_VERTICES+i].x = 1;
 915                         Vertices[NEW_SEGMENT_VERTICES+i].y = 1;
 916                         Vertices[NEW_SEGMENT_VERTICES+i].z = 1;
 917
 918                         if (cfread( &Vertices[NEW_SEGMENT_VERTICES+i], mine_fileinfo.newseg_verts_sizeof,1,LoadFile )!=1)
 919                                 Error( "Error reading Vertices[NEW_SEGMENT_VERTICES+i] in gamemine.c" );
 920
 921                         New_segment.verts[i] = NEW_SEGMENT_VERTICES+i;
 922                 }
 923         }
 924
 925         #endif
 926
 927         //========================= UPDATE VARIABLES ======================
 928
 929         #ifdef EDITOR
 930
 931         // Setting to Markedsegp to NULL ignores Curside and Markedside, which
 932         // we want to do when reading in an old file.
 933
 934         Markedside = mine_editor.Markedside;
 935         Curside = mine_editor.Curside;
 936         for (i=0;i<10;i++)
 937                 Groupside[i] = mine_editor.Groupside[i];
 938
 939         if ( mine_editor.current_seg != -1 )
 940                 Cursegp = mine_editor.current_seg + Segments;
 941         else
 942                 Cursegp = NULL;
 943
 944         if (mine_editor.Markedsegp != -1 )
 945                 Markedsegp = mine_editor.Markedsegp + Segments;
 946         else
 947                 Markedsegp = NULL;
 948
 949         num_groups = 0;
 950         current_group = -1;
 951
 952         #endif
 953
 954         Num_vertices = mine_fileinfo.vertex_howmany;
 955         Num_segments = mine_fileinfo.segment_howmany;
 956         Highest_vertex_index = Num_vertices-1;
 957         Highest_segment_index = Num_segments-1;
 958
 959         reset_objects(1);               //one object, the player
 960
 961         #ifdef EDITOR
 962         Highest_vertex_index = MAX_SEGMENT_VERTICES-1;
 963         Highest_segment_index = MAX_SEGMENTS-1;
 964         set_vertex_counts();
 965         Highest_vertex_index = Num_vertices-1;
 966         Highest_segment_index = Num_segments-1;
 967
 968         warn_if_concave_segments();
 969         #endif
 970
 971         #ifdef EDITOR
 972                 validate_segment_all();
 973         #endif
 974
 975         //create_local_segment_data();
 976
 977         //gamemine_find_textures();
 978
 979         if (mine_top_fileinfo.fileinfo_version < MINE_VERSION )
 980                 return 1;               //old version
 981         else
 982                 return 0;
 983
 984 }
 985 #endif
 986
 987 #define COMPILED_MINE_VERSION 0
 988
 989 void read_children(int segnum,ubyte bit_mask,CFILE *LoadFile)
 990 {
 991         int bit;
 992
 993         for (bit=0; bit<MAX_SIDES_PER_SEGMENT; bit++) {
 994                 if (bit_mask & (1 << bit)) {
 995                         Segments[segnum].children[bit] = cfile_read_short(LoadFile);
 996                 } else
 997                         Segments[segnum].children[bit] = -1;
 998         }
 999 }
1000
1001 void read_verts(int segnum,CFILE *LoadFile)
1002 {
1003         int i;
1004         // Read short Segments[segnum].verts[MAX_VERTICES_PER_SEGMENT]
1005         for (i = 0; i < MAX_VERTICES_PER_SEGMENT; i++)
1006                 Segments[segnum].verts[i] = cfile_read_short(LoadFile);
1007 }
1008
1009 void read_special(int segnum,ubyte bit_mask,CFILE *LoadFile)
1010 {
1011         if (bit_mask & (1 << MAX_SIDES_PER_SEGMENT)) {
1012                 // Read ubyte   Segment2s[segnum].special
1013                 Segment2s[segnum].special = cfile_read_byte(LoadFile);
1014                 // Read byte    Segment2s[segnum].matcen_num
1015                 Segment2s[segnum].matcen_num = cfile_read_byte(LoadFile);
1016                 // Read short   Segment2s[segnum].value
1017                 Segment2s[segnum].value = cfile_read_short(LoadFile);
1018         } else {
1019                 Segment2s[segnum].special = 0;
1020                 Segment2s[segnum].matcen_num = -1;
1021                 Segment2s[segnum].value = 0;
1022         }
1023 }
1024
1025 int load_mine_data_compiled(CFILE *LoadFile)
1026 {
1027         int     i, segnum, sidenum;
1028         ubyte   compiled_version;
1029         short   temp_short;
1030         ushort  temp_ushort;
1031         ubyte   bit_mask;
1032
1033         //      For compiled levels, textures map to themselves, prevent tmap_override always being gray,
1034         //      bug which Matt and John refused to acknowledge, so here is Mike, fixing it.
1035 #ifdef EDITOR
1036         for (i=0; i<MAX_TEXTURES; i++)
1037                 tmap_xlate_table[i] = i;
1038 #endif
1039
1040 //      memset( Segments, 0, sizeof(segment)*MAX_SEGMENTS );
1041         fuelcen_reset();
1042
1043         //=============================== Reading part ==============================
1044         compiled_version = cfile_read_byte(LoadFile);
1045         //Assert( compiled_version==COMPILED_MINE_VERSION );
1046         if (compiled_version!=COMPILED_MINE_VERSION)
1047                 mprintf((0,"compiled mine version=%i\n", compiled_version)); //many levels have "wrong" versions.  Theres no point in aborting because of it, I think.
1048
1049         Num_vertices = cfile_read_short(LoadFile);
1050         Assert( Num_vertices <= MAX_VERTICES );
1051
1052         Num_segments = cfile_read_short(LoadFile);
1053         Assert( Num_segments <= MAX_SEGMENTS );
1054
1055         for (i = 0; i < Num_vertices; i++)
1056                 cfile_read_vector( &(Vertices[i]), LoadFile);
1057
1058         for (segnum=0; segnum<Num_segments; segnum++ )  {
1059
1060                 #ifdef EDITOR
1061                 Segments[segnum].segnum = segnum;
1062                 Segments[segnum].group = 0;
1063                 #endif
1064
1065                 bit_mask = cfile_read_byte(LoadFile);
1066
1067                 if (Gamesave_current_version == 5) { // d2 SHAREWARE level
1068                         read_special(segnum,bit_mask,LoadFile);
1069                         read_verts(segnum,LoadFile);
1070                         read_children(segnum,bit_mask,LoadFile);
1071                 } else {
1072                         read_children(segnum,bit_mask,LoadFile);
1073                         read_verts(segnum,LoadFile);
1074                         if (Gamesave_current_version <= 1) { // descent 1 level
1075                                 read_special(segnum,bit_mask,LoadFile);
1076                         }
1077                 }
1078
1079                 Segments[segnum].objects = -1;
1080
1081                 if (Gamesave_current_version <= 5) { // descent 1 thru d2 SHAREWARE level
1082                         // Read fix     Segments[segnum].static_light (shift down 5 bits, write as short)
1083                         temp_ushort = cfile_read_short(LoadFile);
1084                         Segment2s[segnum].static_light  = ((fix)temp_ushort) << 4;
1085                         //cfread( &Segments[segnum].static_light, sizeof(fix), 1, LoadFile );
1086                 }
1087
1088                 // Read the walls as a 6 byte array
1089                 for (sidenum=0; sidenum<MAX_SIDES_PER_SEGMENT; sidenum++ )      {
1090                         Segments[segnum].sides[sidenum].pad = 0;
1091                 }
1092
1093                 bit_mask = cfile_read_byte(LoadFile);
1094                 for (sidenum=0; sidenum<MAX_SIDES_PER_SEGMENT; sidenum++) {
1095                         ubyte byte_wallnum;
1096
1097                         if (bit_mask & (1 << sidenum)) {
1098                                 byte_wallnum = cfile_read_byte(LoadFile);
1099                                 if ( byte_wallnum == 255 )
1100                                         Segments[segnum].sides[sidenum].wall_num = -1;
1101                                 else
1102                                         Segments[segnum].sides[sidenum].wall_num = byte_wallnum;
1103                         } else
1104                                         Segments[segnum].sides[sidenum].wall_num = -1;
1105                 }
1106
1107                 for (sidenum=0; sidenum<MAX_SIDES_PER_SEGMENT; sidenum++ )      {
1108
1109                         if ( (Segments[segnum].children[sidenum]==-1) || (Segments[segnum].sides[sidenum].wall_num!=-1) )       {
1110                                 // Read short Segments[segnum].sides[sidenum].tmap_num;
1111                                 temp_ushort = cfile_read_short(LoadFile);
1112                                 Segments[segnum].sides[sidenum].tmap_num = temp_ushort & 0x7fff;
1113
1114
1115                                 if (Gamesave_current_version <= 1)
1116                                   Segments[segnum].sides[sidenum].tmap_num = convert_d1_tmap_num(Segments[segnum].sides[sidenum].tmap_num);
1117
1118                                 if (!(temp_ushort & 0x8000))
1119                                         Segments[segnum].sides[sidenum].tmap_num2 = 0;
1120                                 else {
1121                                         // Read short Segments[segnum].sides[sidenum].tmap_num2;
1122                                         Segments[segnum].sides[sidenum].tmap_num2 = cfile_read_short(LoadFile);
1123                                         if (Gamesave_current_version <= 1)
1124                                           Segments[segnum].sides[sidenum].tmap_num2 = convert_d1_tmap_num(Segments[segnum].sides[sidenum].tmap_num2);
1125                                 }
1126
1127                                 // Read uvl Segments[segnum].sides[sidenum].uvls[4] (u,v>>5, write as short, l>>1 write as short)
1128                                 for (i=0; i<4; i++ )    {
1129                                         temp_short = cfile_read_short(LoadFile);
1130                                         Segments[segnum].sides[sidenum].uvls[i].u = ((fix)temp_short) << 5;
1131                                         temp_short = cfile_read_short(LoadFile);
1132                                         Segments[segnum].sides[sidenum].uvls[i].v = ((fix)temp_short) << 5;
1133                                         temp_ushort = cfile_read_short(LoadFile);
1134                                         Segments[segnum].sides[sidenum].uvls[i].l = ((fix)temp_ushort) << 1;
1135                                         //cfread( &Segments[segnum].sides[sidenum].uvls[i].l, sizeof(fix), 1, LoadFile );
1136                                 }
1137                         } else {
1138                                 Segments[segnum].sides[sidenum].tmap_num = 0;
1139                                 Segments[segnum].sides[sidenum].tmap_num2 = 0;
1140                                 for (i=0; i<4; i++ )    {
1141                                         Segments[segnum].sides[sidenum].uvls[i].u = 0;
1142                                         Segments[segnum].sides[sidenum].uvls[i].v = 0;
1143                                         Segments[segnum].sides[sidenum].uvls[i].l = 0;
1144                                 }
1145                         }
1146                 }
1147         }
1148
1149 #if 0
1150         {
1151                 FILE *fp;
1152
1153                 fp = fopen("segments.out", "wt");
1154                 for (i = 0; i <= Highest_segment_index; i++) {
1155                         side    sides[MAX_SIDES_PER_SEGMENT];   // 6 sides
1156                         short   children[MAX_SIDES_PER_SEGMENT];        // indices of 6 children segments, front, left, top, right, bottom, back
1157                         short   verts[MAX_VERTICES_PER_SEGMENT];        // vertex ids of 4 front and 4 back vertices
1158                         int             objects;                                                                // pointer to objects in this segment
1159
1160                         for (j = 0; j < MAX_SIDES_PER_SEGMENT; j++) {
1161                                 byte    type;                                                                   // replaces num_faces and tri_edge, 1 = quad, 2 = 0:2 triangulation, 3 = 1:3 triangulation
1162                                 ubyte   pad;                                                                    //keep us longword alligned
1163                                 short   wall_num;
1164                                 short   tmap_num;
1165                                 short   tmap_num2;
1166                                 uvl             uvls[4];
1167                                 vms_vector      normals[2];                                             // 2 normals, if quadrilateral, both the same.
1168                                 fprintf(fp, "%d\n", Segments[i].sides[j].type);
1169                                 fprintf(fp, "%d\n", Segments[i].sides[j].pad);
1170                                 fprintf(fp, "%d\n", Segments[i].sides[j].wall_num);
1171                                 fprintf(fp, "%d\n", Segments[i].tmap_num);
1172
1173                         }
1174                         fclose(fp);
1175                 }
1176         }
1177 #endif
1178
1179         Highest_vertex_index = Num_vertices-1;
1180         Highest_segment_index = Num_segments-1;
1181
1182         validate_segment_all();                 // Fill in side type and normals.
1183
1184         for (i=0; i<Num_segments; i++) {
1185                 if (Gamesave_current_version > 5)
1186                         segment2_read(&Segment2s[i], LoadFile);
1187                 fuelcen_activate( &Segments[i], Segment2s[i].special );
1188         }
1189
1190         reset_objects(1);               //one object, the player
1191
1192         return 0;
1193 }