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 1.19 2003-02-27 04:34:51 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 int     New_file_format_load = 1;
 145
 146 #define TMAP_NUM_MASK 0x3FFF
 147
 148 /* converts descent 1 texture numbers to descent 2 texture numbers
 149  * textures whose names don't match between versions have extra spaces around "return"
 150  * updated using the file config/convtabl.ini from the devil 2.2 level editor
 151  */
 152 short convert_d1_tmap_num(short d1_tmap_num) {
 153         switch (d1_tmap_num) {
 154         case   0:  return  43; // grey (devil:95)
 155         case   1: return 0;
 156         case   2:  return  43; // grey
 157         case   3: return 1;
 158         case   4:  return  43; // grey
 159         case   5:  return  43; // grey
 160         case   6:  return  270; // blue
 161         case   7:  return  271; // yellow
 162         case   8: return 2;
 163         case   9:  return  62; // purple (devil:179)
 164         case  10:  return  272; // red
 165         case  11:  return  117;
 166         case  12:  return  12; //devil:43
 167         case  13: return 3;
 168         case  14: return 4;
 169         case  15: return 5;
 170         case  16: return 6;
 171         case  17:  return  17; //devil:52
 172         case  18:  return  18; //devil:129
 173         case  19: return 7;
 174         case  20:  return  22;
 175         case  21:  return  9;
 176         case  22: return 8;
 177         case  23: return 9;
 178         case  24: return 10;
 179         case  25:  return  12; //devil:35
 180         case  26: return 11;
 181         case  27: return 12;
 182         case  28:  return  11; //devil:43
 183         case  29: return 13;
 184         case  30: return 14;
 185         case  31: return 15;
 186         case  32: return 16;
 187         case  33: return 17;
 188         case  34: return 18;
 189         case  35: return 19;
 190         case  36: return 20;
 191         case  37: return 21;
 192         case  38:  return  163; //devil:27
 193         case  39:  return  31; //devil:147
 194         case  40: return 22;
 195         case  41:  return  266;
 196         case  42: return 23;
 197         case  43: return 24;
 198         case  44:  return  136; //devil:135
 199         case  45: return 25;
 200         case  46: return 26;
 201         case  47: return 27;
 202         case  48: return 28;
 203         case  49:  return  43; //devil:60
 204         case  50:  return  131; //devil:138
 205         case  51: return 29;
 206         case  52: return 30;
 207         case  53: return 31;
 208         case  54: return 32;
 209         case  55:  return  165; //devil:193
 210         case  56: return 33;
 211         case  57:  return  132; //devil:119
 212         // range handled by default case
 213         case  88:  return  66; //devil:15
 214         // range handled by default case
 215         case 132:  return  108; //devil:167
 216         case 133: return 107;
 217         case 134: return 108;
 218         case 135: return 109;
 219         case 136: return 110;
 220         case 137: return 111;
 221         case 138: return 112;
 222         case 139: return 113;
 223         case 140: return 114;
 224         case 141:  return  110; //devil:106
 225         case 142: return 115;
 226         case 143: return 116;
 227         case 144: return 117;
 228         case 145: return 118;
 229         case 146: return 119;
 230         case 147:  return  111; //devil:93
 231         case 148: return 120;
 232         case 149: return 121;
 233         case 150: return 122;
 234         case 151: return 123;
 235         case 152: return 124;
 236         case 153: return 125;
 237         case 154:  return  82; //devil:27
 238         case 155:  return  66; //devil:126
 239         case 156: return 200;
 240         case 157: return 201;
 241         case 158:  return  186; //devil:227
 242         case 159:  return  190; //devil:246
 243         case 160:  return  206;
 244         case 161:  return  114; //devil:206
 245         case 162: return 202;
 246         case 163: return 203;
 247         case 164: return 204;
 248         case 165: return 205;
 249         case 166: return 206;
 250         case 167:  return  206;
 251         case 168:  return  206;
 252         case 169:  return  206;
 253         case 170:  return  227;//206;
 254         case 171:  return  206;//227;
 255         case 172: return 207;
 256         case 173: return 208;
 257         case 174:  return  202;
 258         case 175:  return  206;
 259         case 176: return 209;
 260         case 177: return 210;
 261         case 178: return 211;
 262         case 179: return 212;
 263         case 180: return 213;
 264         case 181: return 214;
 265         case 182: return 215;
 266         case 183: return 216;
 267         case 184: return 217;
 268         case 185:  return  325; //devil:217
 269         case 186: return 218;
 270         case 187: return 219;
 271         case 188: return 220;
 272         case 189: return 221;
 273         case 190: return 222;
 274         case 191: return 223;
 275         case 192: return 224;
 276         case 193:  return  206;
 277         case 194:  return  203;//206;
 278         case 195:  return  234;
 279         case 196: return 225;
 280         case 197: return 226;
 281         case 198:  return  225;
 282         case 199:  return  206; //devil:204
 283         case 200:  return  206; //devil:204
 284         case 201: return 227;
 285         case 202:  return  206; //devil:227
 286         case 203: return 228;
 287         case 204: return 229;
 288         case 205: return 230;
 289         case 206: return 231;
 290         case 207: return 232;
 291         case 208: return 233;
 292         case 209: return 234;
 293         case 210:  return  234; //devil:242
 294         case 211:  return  206; //devil:240
 295         case 212: return 235;
 296         case 213: return 236;
 297         case 214: return 237;
 298         case 215: return 238;
 299         case 216: return 239;
 300         case 217: return 240;
 301         case 218: return 241;
 302         case 219: return 242;
 303         case 220:  return  242; //devil:240
 304         case 221: return 243;
 305         case 222: return 244;
 306         case 223: return  313;
 307         case 224: return 245;
 308         case 225: return 246;
 309         case 226: return  164;//247; matching names but not matching textures
 310         case 227:  return  179; //devil:181
 311         case 228: return  196;//248; matching names but not matching textures
 312         case 229:  return  15; //devil:66
 313         case 230:  return  15; //devil:66
 314         case 231: return 249;
 315         case 232: return 250;
 316         case 233: return 251;
 317         case 234: return 252;
 318         case 235: return 253;
 319         case 236: return 254;
 320         case 237: return 255;
 321         case 238: return 256;
 322         case 239: return 257;
 323         case 240:  return  6; //devil:132
 324         case 241:  return  130; //devil:131
 325         case 242:  return  78; //devil:15
 326         case 243:  return  33; //devil:38
 327         case 244: return 258;
 328         case 245: return 259;
 329         case 246:  return  321;
 330         case 247: return 260;
 331         case 248: return 261;
 332         case 249: return 262;
 333         case 250: return  340; // white entrance
 334         case 251: return  412; // red entrance
 335         case 252: return  410; // blue entrance
 336         case 253: return  411; // yellow entrance
 337         case 254: return 263;
 338         case 255: return 264;
 339         case 256: return 265;
 340         case 257:  return  249;//246;
 341         case 258:  return  251;//246;
 342         case 259:  return  252;//246;
 343         case 260:  return  256;//246;
 344         case 261: return 273;
 345         case 262: return 274;
 346         case 263:  return  281;
 347         case 264: return 275;
 348         case 265: return 276;
 349         case 266:  return  279; //devil:291
 350         // range handled by default case
 351         case 282: return 293;
 352         case 283:  return  295;
 353         case 284: return 295;
 354         case 285: return 296;
 355         case 286: return 298;
 356         // range handled by default case
 357         case 298:  return  364; //devil:374
 358         // range handled by default case
 359         case 315:  return  361; // broken producer
 360         // range handled by default case
 361         case 327: return 352;
 362         case 328: return 353;
 363         case 329: return 354;
 364         case 330:  return  366; //devil:380
 365         case 331: return 373;
 366         case 332: return  355;//344; matching names but not matching textures
 367         case 333: return  409; // lava  //devil:404
 368         case 334: return 356;
 369         case 335: return 357;
 370         case 336: return 358;
 371         case 337: return 359;
 372         case 338: return 360;
 373         case 339: return 361;
 374         case 340: return 362;
 375         case 341: return 364;
 376         case 342: return 363;
 377         case 343: return 366;
 378         case 344: return 365;
 379         case 345: return 368;
 380         case 346: return 376;
 381         case 347: return 370;
 382         case 348: return 367;
 383         case 349:  return  370; //devil:372
 384         case 350: return 369;
 385         case 351: return  374;//429; matching names but not matching textures
 386         case 352: return  375;//387; matching names but not matching textures
 387         case 353: return 371;
 388         case 354: return  377;//425; matching names but not matching textures
 389         case 355:  return  408;
 390         case 356: return 378; // lava02
 391         case 357: return  383;//384; matching names but not matching textures
 392         case 358: return  384;//385; matching names but not matching textures
 393         case 359: return  385;//386; matching names but not matching textures
 394         case 360: return 386;
 395         case 361: return 387;
 396         case 362:  return  388; // mntr04a (devil: -1)
 397         case 363: return 388;
 398         case 364: return 391;
 399         case 365: return 392;
 400         case 366: return 393;
 401         case 367: return 394;
 402         case 368: return 395;
 403         case 369: return 396;
 404         case 370:  return  392; // mntr04b (devil: -1)
 405         // range 371 - 584 handled by default
 406         default:
 407                 // ranges:
 408                 if (d1_tmap_num >= 58 && d1_tmap_num <= 87)
 409                         return d1_tmap_num - 24;
 410                 if (d1_tmap_num >= 89 && d1_tmap_num <= 131)
 411                         return d1_tmap_num - 25;
 412                 if (d1_tmap_num >= 267 && d1_tmap_num <= 281)
 413                         return d1_tmap_num + 10;
 414                 if (d1_tmap_num >= 287 && d1_tmap_num <= 297)
 415                         return d1_tmap_num + 13;
 416                 if (d1_tmap_num >= 299 && d1_tmap_num <= 314)
 417                         return d1_tmap_num + 12;
 418                 if (d1_tmap_num >= 316 && d1_tmap_num <= 326)
 419                         return d1_tmap_num + 11;
 420                 // wall01 and door frames:
 421                 if (New_file_format_load) {
 422                         if (d1_tmap_num > 370 && d1_tmap_num < 584)
 423                                 return d1_tmap_num + 64;
 424                 } else {
 425                         if (d1_tmap_num > 370 && d1_tmap_num <= 409)
 426                                 return d1_tmap_num + 68;
 427                         if (d1_tmap_num >= 410 && d1_tmap_num <= 416)
 428                                 return d1_tmap_num + 73;
 429                         if (d1_tmap_num >= 417 && d1_tmap_num <= 445)
 430                                 return d1_tmap_num + 91;
 431                         if (d1_tmap_num >= 446 && d1_tmap_num <= 452)
 432                                 return d1_tmap_num + 104;
 433                         if (d1_tmap_num >= 453 && d1_tmap_num <= 461)
 434                                 return d1_tmap_num + 111;
 435                         if (d1_tmap_num >= 462 && d1_tmap_num <= 485)
 436                                 return d1_tmap_num + 117;
 437                         if (d1_tmap_num >= 486 && d1_tmap_num <= 493)
 438                                 return d1_tmap_num + 141;
 439                         if (d1_tmap_num >= 494 && d1_tmap_num < 584)
 440                                 return d1_tmap_num + 147;
 441                 }
 442                 { // handle rare case where orientation != 0
 443                         short tmap_num = d1_tmap_num &  TMAP_NUM_MASK;
 444                         short orient = d1_tmap_num & ~TMAP_NUM_MASK;
 445                         if (orient != 0) {
 446                                 return orient | convert_d1_tmap_num(tmap_num);
 447                         } else {
 448                                 Warning("can't convert unknown descent 1 texture #%d.\n", tmap_num);
 449                                 return d1_tmap_num;
 450                         }
 451                 }
 452         }
 453 }
 454
 455 #ifdef EDITOR
 456
 457 static char old_tmap_list[MAX_TEXTURES][FILENAME_LEN];
 458 short tmap_xlate_table[MAX_TEXTURES];
 459 static short tmap_times_used[MAX_TEXTURES];
 460
 461 // -----------------------------------------------------------------------------
 462 //loads from an already-open file
 463 // returns 0=everything ok, 1=old version, -1=error
 464 int load_mine_data(CFILE *LoadFile)
 465 {
 466         int   i, j,oldsizeadjust;
 467         short tmap_xlate;
 468         int     translate;
 469         char    *temptr;
 470         int     mine_start = cftell(LoadFile);
 471
 472         oldsizeadjust=(sizeof(int)*2)+sizeof (vms_matrix);
 473         fuelcen_reset();
 474
 475         for (i=0; i<MAX_TEXTURES; i++ )
 476                 tmap_times_used[i] = 0;
 477
 478         #ifdef EDITOR
 479         // Create a new mine to initialize things.
 480         //texpage_goto_first();
 481         create_new_mine();
 482         #endif
 483
 484         //===================== READ FILE INFO ========================
 485
 486         // These are the default values... version and fileinfo_sizeof
 487         // don't have defaults.
 488         mine_fileinfo.header_offset     =   -1;
 489         mine_fileinfo.header_size       =   sizeof(mine_header);
 490         mine_fileinfo.editor_offset     =   -1;
 491         mine_fileinfo.editor_size       =   sizeof(mine_editor);
 492         mine_fileinfo.vertex_offset     =   -1;
 493         mine_fileinfo.vertex_howmany    =   0;
 494         mine_fileinfo.vertex_sizeof     =   sizeof(vms_vector);
 495         mine_fileinfo.segment_offset    =   -1;
 496         mine_fileinfo.segment_howmany   =   0;
 497         mine_fileinfo.segment_sizeof    =   sizeof(segment);
 498         mine_fileinfo.newseg_verts_offset     =   -1;
 499         mine_fileinfo.newseg_verts_howmany    =   0;
 500         mine_fileinfo.newseg_verts_sizeof     =   sizeof(vms_vector);
 501         mine_fileinfo.group_offset                =     -1;
 502         mine_fileinfo.group_howmany       =     0;
 503         mine_fileinfo.group_sizeof                =     sizeof(group);
 504         mine_fileinfo.texture_offset    =   -1;
 505         mine_fileinfo.texture_howmany   =   0;
 506         mine_fileinfo.texture_sizeof    =   FILENAME_LEN;  // num characters in a name
 507         mine_fileinfo.walls_offset                =     -1;
 508         mine_fileinfo.walls_howmany       =     0;
 509         mine_fileinfo.walls_sizeof                =     sizeof(wall);
 510         mine_fileinfo.triggers_offset     =     -1;
 511         mine_fileinfo.triggers_howmany  =       0;
 512         mine_fileinfo.triggers_sizeof     =     sizeof(trigger);
 513         mine_fileinfo.object_offset             =       -1;
 514         mine_fileinfo.object_howmany            =       1;
 515         mine_fileinfo.object_sizeof             =       sizeof(object);
 516
 517         mine_fileinfo.level_shake_frequency             =       0;
 518         mine_fileinfo.level_shake_duration              =       0;
 519
 520         //      Delta light stuff for blowing out light sources.
 521 //      if (mine_top_fileinfo.fileinfo_version >= 19) {
 522                 mine_fileinfo.dl_indices_offset         =       -1;
 523                 mine_fileinfo.dl_indices_howmany                =       0;
 524                 mine_fileinfo.dl_indices_sizeof         =       sizeof(dl_index);
 525
 526                 mine_fileinfo.delta_light_offset                =       -1;
 527                 mine_fileinfo.delta_light_howmany               =       0;
 528                 mine_fileinfo.delta_light_sizeof                =       sizeof(delta_light);
 529
 530 //      }
 531
 532         mine_fileinfo.segment2_offset           = -1;
 533         mine_fileinfo.segment2_howmany  = 0;
 534         mine_fileinfo.segment2_sizeof    = sizeof(segment2);
 535
 536         // Read in mine_top_fileinfo to get size of saved fileinfo.
 537
 538         memset( &mine_top_fileinfo, 0, sizeof(mine_top_fileinfo) );
 539
 540         if (cfseek( LoadFile, mine_start, SEEK_SET ))
 541                 Error( "Error moving to top of file in gamemine.c" );
 542
 543         if (cfread( &mine_top_fileinfo, sizeof(mine_top_fileinfo), 1, LoadFile )!=1)
 544                 Error( "Error reading mine_top_fileinfo in gamemine.c" );
 545
 546         if (mine_top_fileinfo.fileinfo_signature != 0x2884)
 547                 return -1;
 548
 549         // Check version number
 550         if (mine_top_fileinfo.fileinfo_version < COMPATIBLE_VERSION )
 551                 return -1;
 552
 553         // Now, Read in the fileinfo
 554         if (cfseek( LoadFile, mine_start, SEEK_SET ))
 555                 Error( "Error seeking to top of file in gamemine.c" );
 556
 557         if (cfread( &mine_fileinfo, mine_top_fileinfo.fileinfo_sizeof, 1, LoadFile )!=1)
 558                 Error( "Error reading mine_fileinfo in gamemine.c" );
 559
 560         if (mine_top_fileinfo.fileinfo_version < 18) {
 561                 mprintf((1, "Old version, setting shake intensity to 0.\n"));
 562                 Level_shake_frequency = 0;
 563                 Level_shake_duration = 0;
 564                 Secret_return_segment = 0;
 565                 Secret_return_orient = vmd_identity_matrix;
 566         } else {
 567                 Level_shake_frequency = mine_fileinfo.level_shake_frequency << 12;
 568                 Level_shake_duration = mine_fileinfo.level_shake_duration << 12;
 569                 Secret_return_segment = mine_fileinfo.secret_return_segment;
 570                 Secret_return_orient = mine_fileinfo.secret_return_orient;
 571         }
 572
 573         //===================== READ HEADER INFO ========================
 574
 575         // Set default values.
 576         mine_header.num_vertices        =   0;
 577         mine_header.num_segments        =   0;
 578
 579         if (mine_fileinfo.header_offset > -1 )
 580         {
 581                 if (cfseek( LoadFile, mine_fileinfo.header_offset, SEEK_SET ))
 582                         Error( "Error seeking to header_offset in gamemine.c" );
 583
 584                 if (cfread( &mine_header, mine_fileinfo.header_size, 1, LoadFile )!=1)
 585                         Error( "Error reading mine_header in gamemine.c" );
 586         }
 587
 588         //===================== READ EDITOR INFO ==========================
 589
 590         // Set default values
 591         mine_editor.current_seg         =   0;
 592         mine_editor.newsegment_offset   =   -1; // To be written
 593         mine_editor.newsegment_size     =   sizeof(segment);
 594         mine_editor.Curside             =   0;
 595         mine_editor.Markedsegp          =   -1;
 596         mine_editor.Markedside          =   0;
 597
 598         if (mine_fileinfo.editor_offset > -1 )
 599         {
 600                 if (cfseek( LoadFile, mine_fileinfo.editor_offset, SEEK_SET ))
 601                         Error( "Error seeking to editor_offset in gamemine.c" );
 602
 603                 if (cfread( &mine_editor, mine_fileinfo.editor_size, 1, LoadFile )!=1)
 604                         Error( "Error reading mine_editor in gamemine.c" );
 605         }
 606
 607         //===================== READ TEXTURE INFO ==========================
 608
 609         if ( (mine_fileinfo.texture_offset > -1) && (mine_fileinfo.texture_howmany > 0))
 610         {
 611                 if (cfseek( LoadFile, mine_fileinfo.texture_offset, SEEK_SET ))
 612                         Error( "Error seeking to texture_offset in gamemine.c" );
 613
 614                 for (i=0; i< mine_fileinfo.texture_howmany; i++ )
 615                 {
 616                         if (cfread( &old_tmap_list[i], mine_fileinfo.texture_sizeof, 1, LoadFile )!=1)
 617                                 Error( "Error reading old_tmap_list[i] in gamemine.c" );
 618                 }
 619         }
 620
 621         //=============== GENERATE TEXTURE TRANSLATION TABLE ===============
 622
 623         translate = 0;
 624
 625         Assert (NumTextures < MAX_TEXTURES);
 626
 627         {
 628                 hashtable ht;
 629
 630                 hashtable_init( &ht, NumTextures );
 631
 632                 // Remove all the file extensions in the textures list
 633
 634                 for (i=0;i<NumTextures;i++)     {
 635                         temptr = strchr(TmapInfo[i].filename, '.');
 636                         if (temptr) *temptr = '\0';
 637                         hashtable_insert( &ht, TmapInfo[i].filename, i );
 638                 }
 639
 640                 // For every texture, search through the texture list
 641                 // to find a matching name.
 642                 for (j=0;j<mine_fileinfo.texture_howmany;j++)   {
 643                         // Remove this texture name's extension
 644                         temptr = strchr(old_tmap_list[j], '.');
 645                         if (temptr) *temptr = '\0';
 646
 647                         tmap_xlate_table[j] = hashtable_search( &ht,old_tmap_list[j]);
 648                         if (tmap_xlate_table[j] < 0 )   {
 649                                 //tmap_xlate_table[j] = 0;
 650                                 // mprintf( (0, "Couldn't find texture '%s'\n", old_tmap_list[j] ));
 651                                 ;
 652                         }
 653                         if (tmap_xlate_table[j] != j ) translate = 1;
 654                         if (tmap_xlate_table[j] >= 0)
 655                                 tmap_times_used[tmap_xlate_table[j]]++;
 656                 }
 657
 658                 {
 659                         int count = 0;
 660                         for (i=0; i<MAX_TEXTURES; i++ )
 661                                 if (tmap_times_used[i])
 662                                         count++;
 663                         mprintf( (0, "This mine has %d unique textures in it (~%d KB)\n", count, (count*4096) /1024 ));
 664                 }
 665
 666                 // -- mprintf( (0, "Translate=%d\n", translate ));
 667
 668                 hashtable_free( &ht );
 669         }
 670
 671         //====================== READ VERTEX INFO ==========================
 672
 673         // New check added to make sure we don't read in too many vertices.
 674         if ( mine_fileinfo.vertex_howmany > MAX_VERTICES )
 675                 {
 676                 mprintf((0, "Num vertices exceeds maximum.  Loading MAX %d vertices\n", MAX_VERTICES));
 677                 mine_fileinfo.vertex_howmany = MAX_VERTICES;
 678                 }
 679
 680         if ( (mine_fileinfo.vertex_offset > -1) && (mine_fileinfo.vertex_howmany > 0))
 681         {
 682                 if (cfseek( LoadFile, mine_fileinfo.vertex_offset, SEEK_SET ))
 683                         Error( "Error seeking to vertex_offset in gamemine.c" );
 684
 685                 for (i=0; i< mine_fileinfo.vertex_howmany; i++ )
 686                 {
 687                         // Set the default values for this vertex
 688                         Vertices[i].x = 1;
 689                         Vertices[i].y = 1;
 690                         Vertices[i].z = 1;
 691
 692                         if (cfread( &Vertices[i], mine_fileinfo.vertex_sizeof, 1, LoadFile )!=1)
 693                                 Error( "Error reading Vertices[i] in gamemine.c" );
 694                 }
 695         }
 696
 697         //==================== READ SEGMENT INFO ===========================
 698
 699         // New check added to make sure we don't read in too many segments.
 700         if ( mine_fileinfo.segment_howmany > MAX_SEGMENTS ) {
 701                 mprintf((0, "Num segments exceeds maximum.  Loading MAX %d segments\n", MAX_SEGMENTS));
 702                 mine_fileinfo.segment_howmany = MAX_SEGMENTS;
 703                 mine_fileinfo.segment2_howmany = MAX_SEGMENTS;
 704         }
 705
 706         // [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();
 707
 708         if ( (mine_fileinfo.segment_offset > -1) && (mine_fileinfo.segment_howmany > 0))        {
 709
 710                 if (cfseek( LoadFile, mine_fileinfo.segment_offset,SEEK_SET ))
 711
 712                         Error( "Error seeking to segment_offset in gamemine.c" );
 713
 714                 Highest_segment_index = mine_fileinfo.segment_howmany-1;
 715
 716                 for (i=0; i< mine_fileinfo.segment_howmany; i++ ) {
 717
 718                         // Set the default values for this segment (clear to zero )
 719                         //memset( &Segments[i], 0, sizeof(segment) );
 720
 721                         if (mine_top_fileinfo.fileinfo_version < 20) {
 722                                 v16_segment v16_seg;
 723
 724                                 Assert(mine_fileinfo.segment_sizeof == sizeof(v16_seg));
 725
 726                                 if (cfread( &v16_seg, mine_fileinfo.segment_sizeof, 1, LoadFile )!=1)
 727                                         Error( "Error reading segments in gamemine.c" );
 728
 729                                 #ifdef EDITOR
 730                                 Segments[i].segnum = v16_seg.segnum;
 731                                 // -- Segments[i].pad = v16_seg.pad;
 732                                 #endif
 733
 734                                 for (j=0; j<MAX_SIDES_PER_SEGMENT; j++)
 735                                         Segments[i].sides[j] = v16_seg.sides[j];
 736
 737                                 for (j=0; j<MAX_SIDES_PER_SEGMENT; j++)
 738                                         Segments[i].children[j] = v16_seg.children[j];
 739
 740                                 for (j=0; j<MAX_VERTICES_PER_SEGMENT; j++)
 741                                         Segments[i].verts[j] = v16_seg.verts[j];
 742
 743                                 Segment2s[i].special = v16_seg.special;
 744                                 Segment2s[i].value = v16_seg.value;
 745                                 Segment2s[i].s2_flags = 0;
 746                                 Segment2s[i].matcen_num = v16_seg.matcen_num;
 747                                 Segment2s[i].static_light = v16_seg.static_light;
 748                                 fuelcen_activate( &Segments[i], Segment2s[i].special );
 749
 750                         } else  {
 751                                 if (cfread( &Segments[i], mine_fileinfo.segment_sizeof, 1, LoadFile )!=1)
 752                                         Error("Unable to read segment %i\n", i);
 753                         }
 754
 755                         Segments[i].objects = -1;
 756                         #ifdef EDITOR
 757                         Segments[i].group = -1;
 758                         #endif
 759
 760                         if (mine_top_fileinfo.fileinfo_version < 15) {  //used old uvl ranges
 761                                 int sn,uvln;
 762
 763                                 for (sn=0;sn<MAX_SIDES_PER_SEGMENT;sn++)
 764                                         for (uvln=0;uvln<4;uvln++) {
 765                                                 Segments[i].sides[sn].uvls[uvln].u /= 64;
 766                                                 Segments[i].sides[sn].uvls[uvln].v /= 64;
 767                                                 Segments[i].sides[sn].uvls[uvln].l /= 32;
 768                                         }
 769                         }
 770
 771                         if (translate == 1)
 772                                 for (j=0;j<MAX_SIDES_PER_SEGMENT;j++) {
 773                                         unsigned short orient;
 774                                         tmap_xlate = Segments[i].sides[j].tmap_num;
 775                                         Segments[i].sides[j].tmap_num = tmap_xlate_table[tmap_xlate];
 776                                         if ((WALL_IS_DOORWAY(&Segments[i],j) & WID_RENDER_FLAG))
 777                                                 if (Segments[i].sides[j].tmap_num < 0)  {
 778                                                         mprintf( (0, "Couldn't find texture '%s' for Segment %d, side %d\n", old_tmap_list[tmap_xlate],i,j));
 779                                                         Int3();
 780                                                         Segments[i].sides[j].tmap_num = NumTextures-1;
 781                                                 }
 782                                         tmap_xlate = Segments[i].sides[j].tmap_num2 & TMAP_NUM_MASK;
 783                                         orient = Segments[i].sides[j].tmap_num2 & (~TMAP_NUM_MASK);
 784                                         if (tmap_xlate != 0) {
 785                                                 int xlated_tmap = tmap_xlate_table[tmap_xlate];
 786
 787                                                 if ((WALL_IS_DOORWAY(&Segments[i],j) & WID_RENDER_FLAG))
 788                                                         if (xlated_tmap <= 0)   {
 789                                                                 mprintf( (0, "Couldn't find texture '%s' for Segment %d, side %d\n", old_tmap_list[tmap_xlate],i,j));
 790                                                                 Int3();
 791                                                                 Segments[i].sides[j].tmap_num2 = NumTextures-1;
 792                                                         }
 793                                                 Segments[i].sides[j].tmap_num2 = xlated_tmap | orient;
 794                                         }
 795                                 }
 796                 }
 797
 798
 799                 if (mine_top_fileinfo.fileinfo_version >= 20)
 800                         for (i=0; i<=Highest_segment_index; i++) {
 801                                 cfread(&Segment2s[i], sizeof(segment2), 1, LoadFile);
 802                                 fuelcen_activate( &Segments[i], Segment2s[i].special );
 803                         }
 804         }
 805
 806         //===================== READ NEWSEGMENT INFO =====================
 807
 808         #ifdef EDITOR
 809
 810         {               // Default segment created.
 811                 vms_vector      sizevec;
 812                 med_create_new_segment(vm_vec_make(&sizevec,DEFAULT_X_SIZE,DEFAULT_Y_SIZE,DEFAULT_Z_SIZE));             // New_segment = Segments[0];
 813                 //memset( &New_segment, 0, sizeof(segment) );
 814         }
 815
 816         if (mine_editor.newsegment_offset > -1)
 817         {
 818                 if (cfseek( LoadFile, mine_editor.newsegment_offset,SEEK_SET ))
 819                         Error( "Error seeking to newsegment_offset in gamemine.c" );
 820                 if (cfread( &New_segment, mine_editor.newsegment_size,1,LoadFile )!=1)
 821                         Error( "Error reading new_segment in gamemine.c" );
 822         }
 823
 824         if ( (mine_fileinfo.newseg_verts_offset > -1) && (mine_fileinfo.newseg_verts_howmany > 0))
 825         {
 826                 if (cfseek( LoadFile, mine_fileinfo.newseg_verts_offset, SEEK_SET ))
 827                         Error( "Error seeking to newseg_verts_offset in gamemine.c" );
 828                 for (i=0; i< mine_fileinfo.newseg_verts_howmany; i++ )
 829                 {
 830                         // Set the default values for this vertex
 831                         Vertices[NEW_SEGMENT_VERTICES+i].x = 1;
 832                         Vertices[NEW_SEGMENT_VERTICES+i].y = 1;
 833                         Vertices[NEW_SEGMENT_VERTICES+i].z = 1;
 834
 835                         if (cfread( &Vertices[NEW_SEGMENT_VERTICES+i], mine_fileinfo.newseg_verts_sizeof,1,LoadFile )!=1)
 836                                 Error( "Error reading Vertices[NEW_SEGMENT_VERTICES+i] in gamemine.c" );
 837
 838                         New_segment.verts[i] = NEW_SEGMENT_VERTICES+i;
 839                 }
 840         }
 841
 842         #endif
 843
 844         //========================= UPDATE VARIABLES ======================
 845
 846         #ifdef EDITOR
 847
 848         // Setting to Markedsegp to NULL ignores Curside and Markedside, which
 849         // we want to do when reading in an old file.
 850
 851         Markedside = mine_editor.Markedside;
 852         Curside = mine_editor.Curside;
 853         for (i=0;i<10;i++)
 854                 Groupside[i] = mine_editor.Groupside[i];
 855
 856         if ( mine_editor.current_seg != -1 )
 857                 Cursegp = mine_editor.current_seg + Segments;
 858         else
 859                 Cursegp = NULL;
 860
 861         if (mine_editor.Markedsegp != -1 )
 862                 Markedsegp = mine_editor.Markedsegp + Segments;
 863         else
 864                 Markedsegp = NULL;
 865
 866         num_groups = 0;
 867         current_group = -1;
 868
 869         #endif
 870
 871         Num_vertices = mine_fileinfo.vertex_howmany;
 872         Num_segments = mine_fileinfo.segment_howmany;
 873         Highest_vertex_index = Num_vertices-1;
 874         Highest_segment_index = Num_segments-1;
 875
 876         reset_objects(1);               //one object, the player
 877
 878         #ifdef EDITOR
 879         Highest_vertex_index = MAX_SEGMENT_VERTICES-1;
 880         Highest_segment_index = MAX_SEGMENTS-1;
 881         set_vertex_counts();
 882         Highest_vertex_index = Num_vertices-1;
 883         Highest_segment_index = Num_segments-1;
 884
 885         warn_if_concave_segments();
 886         #endif
 887
 888         #ifdef EDITOR
 889                 validate_segment_all();
 890         #endif
 891
 892         //create_local_segment_data();
 893
 894         //gamemine_find_textures();
 895
 896         if (mine_top_fileinfo.fileinfo_version < MINE_VERSION )
 897                 return 1;               //old version
 898         else
 899                 return 0;
 900
 901 }
 902 #endif
 903
 904 #define COMPILED_MINE_VERSION 0
 905
 906 void read_children(int segnum,ubyte bit_mask,CFILE *LoadFile)
 907 {
 908         int bit;
 909
 910         for (bit=0; bit<MAX_SIDES_PER_SEGMENT; bit++) {
 911                 if (bit_mask & (1 << bit)) {
 912                         Segments[segnum].children[bit] = cfile_read_short(LoadFile);
 913                 } else
 914                         Segments[segnum].children[bit] = -1;
 915         }
 916 }
 917
 918 void read_verts(int segnum,CFILE *LoadFile)
 919 {
 920         int i;
 921         // Read short Segments[segnum].verts[MAX_VERTICES_PER_SEGMENT]
 922         for (i = 0; i < MAX_VERTICES_PER_SEGMENT; i++)
 923                 Segments[segnum].verts[i] = cfile_read_short(LoadFile);
 924 }
 925
 926 void read_special(int segnum,ubyte bit_mask,CFILE *LoadFile)
 927 {
 928         if (bit_mask & (1 << MAX_SIDES_PER_SEGMENT)) {
 929                 // Read ubyte   Segment2s[segnum].special
 930                 Segment2s[segnum].special = cfile_read_byte(LoadFile);
 931                 // Read byte    Segment2s[segnum].matcen_num
 932                 Segment2s[segnum].matcen_num = cfile_read_byte(LoadFile);
 933                 // Read short   Segment2s[segnum].value
 934                 Segment2s[segnum].value = cfile_read_short(LoadFile);
 935         } else {
 936                 Segment2s[segnum].special = 0;
 937                 Segment2s[segnum].matcen_num = -1;
 938                 Segment2s[segnum].value = 0;
 939         }
 940 }
 941
 942 int load_mine_data_compiled(CFILE *LoadFile)
 943 {
 944         int     i, segnum, sidenum;
 945         ubyte   compiled_version;
 946         short   temp_short;
 947         ushort  temp_ushort;
 948         ubyte   bit_mask;
 949
 950         if (!strcmp(strchr(Gamesave_current_filename, '.'), ".sdl"))
 951                 New_file_format_load = 0; // descent 1 shareware
 952         else
 953                 New_file_format_load = 1;
 954
 955         //      For compiled levels, textures map to themselves, prevent tmap_override always being gray,
 956         //      bug which Matt and John refused to acknowledge, so here is Mike, fixing it.
 957 #ifdef EDITOR
 958         for (i=0; i<MAX_TEXTURES; i++)
 959                 tmap_xlate_table[i] = i;
 960 #endif
 961
 962 //      memset( Segments, 0, sizeof(segment)*MAX_SEGMENTS );
 963         fuelcen_reset();
 964
 965         //=============================== Reading part ==============================
 966         compiled_version = cfile_read_byte(LoadFile);
 967         //Assert( compiled_version==COMPILED_MINE_VERSION );
 968         if (compiled_version!=COMPILED_MINE_VERSION)
 969                 mprintf((0,"compiled mine version=%i\n", compiled_version)); //many levels have "wrong" versions.  Theres no point in aborting because of it, I think.
 970
 971         if (New_file_format_load)
 972                 Num_vertices = cfile_read_short(LoadFile);
 973         else
 974                 Num_vertices = cfile_read_int(LoadFile);
 975         Assert( Num_vertices <= MAX_VERTICES );
 976
 977         if (New_file_format_load)
 978                 Num_segments = cfile_read_short(LoadFile);
 979         else
 980                 Num_segments = cfile_read_int(LoadFile);
 981         Assert( Num_segments <= MAX_SEGMENTS );
 982
 983         for (i = 0; i < Num_vertices; i++)
 984                 cfile_read_vector( &(Vertices[i]), LoadFile);
 985
 986         for (segnum=0; segnum<Num_segments; segnum++ )  {
 987
 988                 #ifdef EDITOR
 989                 Segments[segnum].segnum = segnum;
 990                 Segments[segnum].group = 0;
 991                 #endif
 992
 993                 if (New_file_format_load)
 994                         bit_mask = cfile_read_byte(LoadFile);
 995                 else
 996                         bit_mask = 0x7f; // read all six children and special stuff...
 997
 998                 if (Gamesave_current_version == 5) { // d2 SHAREWARE level
 999                         read_special(segnum,bit_mask,LoadFile);
1000                         read_verts(segnum,LoadFile);
1001                         read_children(segnum,bit_mask,LoadFile);
1002                 } else {
1003                         read_children(segnum,bit_mask,LoadFile);
1004                         read_verts(segnum,LoadFile);
1005                         if (Gamesave_current_version <= 1) { // descent 1 level
1006                                 read_special(segnum,bit_mask,LoadFile);
1007                         }
1008                 }
1009
1010                 Segments[segnum].objects = -1;
1011
1012                 if (Gamesave_current_version <= 5) { // descent 1 thru d2 SHAREWARE level
1013                         // Read fix     Segments[segnum].static_light (shift down 5 bits, write as short)
1014                         temp_ushort = cfile_read_short(LoadFile);
1015                         Segment2s[segnum].static_light  = ((fix)temp_ushort) << 4;
1016                         //cfread( &Segments[segnum].static_light, sizeof(fix), 1, LoadFile );
1017                 }
1018
1019                 // Read the walls as a 6 byte array
1020                 for (sidenum=0; sidenum<MAX_SIDES_PER_SEGMENT; sidenum++ )      {
1021                         Segments[segnum].sides[sidenum].pad = 0;
1022                 }
1023
1024                 if (New_file_format_load)
1025                         bit_mask = cfile_read_byte(LoadFile);
1026                 else
1027                         bit_mask = 0x3f; // read all six sides
1028                 for (sidenum=0; sidenum<MAX_SIDES_PER_SEGMENT; sidenum++) {
1029                         ubyte byte_wallnum;
1030
1031                         if (bit_mask & (1 << sidenum)) {
1032                                 byte_wallnum = cfile_read_byte(LoadFile);
1033                                 if ( byte_wallnum == 255 )
1034                                         Segments[segnum].sides[sidenum].wall_num = -1;
1035                                 else
1036                                         Segments[segnum].sides[sidenum].wall_num = byte_wallnum;
1037                         } else
1038                                         Segments[segnum].sides[sidenum].wall_num = -1;
1039                 }
1040
1041                 for (sidenum=0; sidenum<MAX_SIDES_PER_SEGMENT; sidenum++ )      {
1042
1043                         if ( (Segments[segnum].children[sidenum]==-1) || (Segments[segnum].sides[sidenum].wall_num!=-1) )       {
1044                                 // Read short Segments[segnum].sides[sidenum].tmap_num;
1045                                 if (New_file_format_load) {
1046                                         temp_ushort = cfile_read_short(LoadFile);
1047                                         Segments[segnum].sides[sidenum].tmap_num = temp_ushort & 0x7fff;
1048                                 } else
1049                                         Segments[segnum].sides[sidenum].tmap_num = cfile_read_short(LoadFile);
1050
1051                                 if (Gamesave_current_version <= 1)
1052                                         Segments[segnum].sides[sidenum].tmap_num = convert_d1_tmap_num(Segments[segnum].sides[sidenum].tmap_num);
1053
1054                                 if (New_file_format_load && !(temp_ushort & 0x8000))
1055                                         Segments[segnum].sides[sidenum].tmap_num2 = 0;
1056                                 else {
1057                                         // Read short Segments[segnum].sides[sidenum].tmap_num2;
1058                                         Segments[segnum].sides[sidenum].tmap_num2 = cfile_read_short(LoadFile);
1059                                         if (Gamesave_current_version <= 1 && Segments[segnum].sides[sidenum].tmap_num2 != 0)
1060                                                 Segments[segnum].sides[sidenum].tmap_num2 = convert_d1_tmap_num(Segments[segnum].sides[sidenum].tmap_num2);
1061                                 }
1062
1063                                 // Read uvl Segments[segnum].sides[sidenum].uvls[4] (u,v>>5, write as short, l>>1 write as short)
1064                                 for (i=0; i<4; i++ )    {
1065                                         temp_short = cfile_read_short(LoadFile);
1066                                         Segments[segnum].sides[sidenum].uvls[i].u = ((fix)temp_short) << 5;
1067                                         temp_short = cfile_read_short(LoadFile);
1068                                         Segments[segnum].sides[sidenum].uvls[i].v = ((fix)temp_short) << 5;
1069                                         temp_ushort = cfile_read_short(LoadFile);
1070                                         Segments[segnum].sides[sidenum].uvls[i].l = ((fix)temp_ushort) << 1;
1071                                         //cfread( &Segments[segnum].sides[sidenum].uvls[i].l, sizeof(fix), 1, LoadFile );
1072                                 }
1073                         } else {
1074                                 Segments[segnum].sides[sidenum].tmap_num = 0;
1075                                 Segments[segnum].sides[sidenum].tmap_num2 = 0;
1076                                 for (i=0; i<4; i++ )    {
1077                                         Segments[segnum].sides[sidenum].uvls[i].u = 0;
1078                                         Segments[segnum].sides[sidenum].uvls[i].v = 0;
1079                                         Segments[segnum].sides[sidenum].uvls[i].l = 0;
1080                                 }
1081                         }
1082                 }
1083         }
1084
1085 #if 0
1086         {
1087                 FILE *fp;
1088
1089                 fp = fopen("segments.out", "wt");
1090                 for (i = 0; i <= Highest_segment_index; i++) {
1091                         side    sides[MAX_SIDES_PER_SEGMENT];   // 6 sides
1092                         short   children[MAX_SIDES_PER_SEGMENT];        // indices of 6 children segments, front, left, top, right, bottom, back
1093                         short   verts[MAX_VERTICES_PER_SEGMENT];        // vertex ids of 4 front and 4 back vertices
1094                         int             objects;                                                                // pointer to objects in this segment
1095
1096                         for (j = 0; j < MAX_SIDES_PER_SEGMENT; j++) {
1097                                 byte    type;                                                                   // replaces num_faces and tri_edge, 1 = quad, 2 = 0:2 triangulation, 3 = 1:3 triangulation
1098                                 ubyte   pad;                                                                    //keep us longword alligned
1099                                 short   wall_num;
1100                                 short   tmap_num;
1101                                 short   tmap_num2;
1102                                 uvl             uvls[4];
1103                                 vms_vector      normals[2];                                             // 2 normals, if quadrilateral, both the same.
1104                                 fprintf(fp, "%d\n", Segments[i].sides[j].type);
1105                                 fprintf(fp, "%d\n", Segments[i].sides[j].pad);
1106                                 fprintf(fp, "%d\n", Segments[i].sides[j].wall_num);
1107                                 fprintf(fp, "%d\n", Segments[i].tmap_num);
1108
1109                         }
1110                         fclose(fp);
1111                 }
1112         }
1113 #endif
1114
1115         Highest_vertex_index = Num_vertices-1;
1116         Highest_segment_index = Num_segments-1;
1117
1118         validate_segment_all();                 // Fill in side type and normals.
1119
1120         for (i=0; i<Num_segments; i++) {
1121                 if (Gamesave_current_version > 5)
1122                         segment2_read(&Segment2s[i], LoadFile);
1123                 fuelcen_activate( &Segments[i], Segment2s[i].special );
1124         }
1125
1126         reset_objects(1);               //one object, the player
1127
1128         return 0;
1129 }