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 1.21 2003-03-19 22:44:15 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; // "new file format" is everything newer than d1 shareware
 145
 146 int d1_pig_loaded = 0; // can descent.pig from descent 1 be loaded?
 147
 148 #define TMAP_NUM_MASK 0x3FFF
 149
 150 /* converts descent 1 texture numbers to descent 2 texture numbers
 151  * textures whose names don't match between versions have extra spaces around "return"
 152  * updated using the file config/convtabl.ini from the devil 2.2 level editor
 153  */
 154 short convert_d1_tmap_num(short d1_tmap_num) {
 155         if (d1_pig_loaded && d1_tmap_num < 324) // we use original d1 textures for non-animated textures
 156                 return d1_tmap_num;
 157         switch (d1_tmap_num) {
 158         case   0:  return  43; // grey (devil:95)
 159         case   1: return 0;
 160         case   2:  return  43; // grey
 161         case   3: return 1;
 162         case   4:  return  43; // grey
 163         case   5:  return  43; // grey
 164         case   6:  return  270; // blue
 165         case   7:  return  271; // yellow
 166         case   8: return 2;
 167         case   9:  return  62; // purple (devil:179)
 168         case  10:  return  272; // red
 169         case  11:  return  117;
 170         case  12:  return  12; //devil:43
 171         case  13: return 3;
 172         case  14: return 4;
 173         case  15: return 5;
 174         case  16: return 6;
 175         case  17:  return  52;
 176         case  18:  return  129;
 177         case  19: return 7;
 178         case  20:  return  22;
 179         case  21:  return  9;
 180         case  22: return 8;
 181         case  23: return 9;
 182         case  24: return 10;
 183         case  25:  return  12; //devil:35
 184         case  26: return 11;
 185         case  27: return 12;
 186         case  28:  return  11; //devil:43
 187         case  29: return 13;
 188         case  30: return 14;
 189         case  31: return 15;
 190         case  32: return 16;
 191         case  33: return 17;
 192         case  34: return 18;
 193         case  35: return 19;
 194         case  36: return 20;
 195         case  37: return 21;
 196         case  38:  return  163; //devil:27
 197         case  39:  return  31; //devil:147
 198         case  40: return 22;
 199         case  41:  return  266;
 200         case  42: return 23;
 201         case  43: return 24;
 202         case  44:  return  136; //devil:135
 203         case  45: return 25;
 204         case  46: return 26;
 205         case  47: return 27;
 206         case  48: return 28;
 207         case  49:  return  43; //devil:60
 208         case  50:  return  131; //devil:138
 209         case  51: return 29;
 210         case  52: return 30;
 211         case  53: return 31;
 212         case  54: return 32;
 213         case  55:  return  165; //devil:193
 214         case  56: return 33;
 215         case  57:  return  132; //devil:119
 216         // range handled by default case
 217         case  88:  return  197; //devil:15
 218         // range handled by default case
 219         case 132:  return  167;
 220         case 133: return 107;
 221         case 134: return 108;
 222         case 135: return 109;
 223         case 136: return 110;
 224         case 137: return 111;
 225         case 138: return 112;
 226         case 139: return 113;
 227         case 140: return 114;
 228         case 141:  return  110; //devil:106
 229         case 142: return 115;
 230         case 143: return 116;
 231         case 144: return 117;
 232         case 145: return 118;
 233         case 146: return 119;
 234         case 147:  return  93;
 235         case 148: return 120;
 236         case 149: return 121;
 237         case 150: return 122;
 238         case 151: return 123;
 239         case 152: return 124;
 240         case 153: return 125;
 241         case 154:  return  27;
 242         case 155:  return  126; //was: 66
 243         case 156: return 200;
 244         case 157: return 201;
 245         case 158:  return  186; //devil:227
 246         case 159:  return  190; //devil:246
 247         case 160:  return  206;
 248         case 161:  return  114; //devil:206
 249         case 162: return 202;
 250         case 163: return 203;
 251         case 164: return 204;
 252         case 165: return 205;
 253         case 166: return 206;
 254         case 167:  return  206;
 255         case 168:  return  206;
 256         case 169:  return  206;
 257         case 170:  return  227;//206;
 258         case 171:  return  206;//227;
 259         case 172: return 207;
 260         case 173: return 208;
 261         case 174:  return  202;
 262         case 175:  return  206;
 263         case 176: return 209;
 264         case 177: return 210;
 265         case 178: return 211;
 266         case 179: return 212;
 267         case 180: return 213;
 268         case 181: return 214;
 269         case 182: return 215;
 270         case 183: return 216;
 271         case 184: return 217;
 272         case 185:  return  217;
 273         case 186: return 218;
 274         case 187: return 219;
 275         case 188: return 220;
 276         case 189: return 221;
 277         case 190: return 222;
 278         case 191: return 223;
 279         case 192: return 224;
 280         case 193:  return  206;
 281         case 194:  return  203;//206;
 282         case 195:  return  234;
 283         case 196: return 225;
 284         case 197: return 226;
 285         case 198:  return  225;
 286         case 199:  return  206; //devil:204
 287         case 200:  return  206; //devil:204
 288         case 201: return 227;
 289         case 202:  return  206; //devil:227
 290         case 203: return 228;
 291         case 204: return 229;
 292         case 205: return 230;
 293         case 206: return 231;
 294         case 207: return 232;
 295         case 208: return 233;
 296         case 209: return 234;
 297         case 210:  return  234; //devil:242
 298         case 211:  return  206; //devil:240
 299         case 212: return 235;
 300         case 213: return 236;
 301         case 214: return 237;
 302         case 215: return 238;
 303         case 216: return 239;
 304         case 217: return 240;
 305         case 218: return 241;
 306         case 219: return 242;
 307         case 220:  return  242; //devil:240
 308         case 221: return 243;
 309         case 222: return 244;
 310         case 223: return  313;
 311         case 224: return 245;
 312         case 225: return 246;
 313         case 226:  return  164;//247; matching names but not matching textures
 314         case 227:  return  179; //devil:181
 315         case 228:  return  196;//248; matching names but not matching textures
 316         case 229:  return  15; //devil:66
 317         case 230:  return  15; //devil:66
 318         case 231: return 249;
 319         case 232: return 250;
 320         case 233: return 251;
 321         case 234: return 252;
 322         case 235: return 253;
 323         case 236: return 254;
 324         case 237: return 255;
 325         case 238: return 256;
 326         case 239: return 257;
 327         case 240:  return  6; //devil:132
 328         case 241:  return  130; //devil:131
 329         case 242:  return  78; //devil:15
 330         case 243:  return  33; //devil:38
 331         case 244: return 258;
 332         case 245: return 259;
 333         case 246:  return  321;
 334         case 247: return 260;
 335         case 248: return 261;
 336         case 249: return 262;
 337         case 250:  return  340; // white entrance
 338         case 251:  return  412; // red entrance
 339         case 252:  return  410; // blue entrance
 340         case 253:  return  411; // yellow entrance
 341         case 254: return 263;
 342         case 255: return 264;
 343         case 256: return 265;
 344         case 257:  return  249;//246;
 345         case 258:  return  251;//246;
 346         case 259:  return  252;//246;
 347         case 260:  return  256;//246;
 348         case 261: return 273;
 349         case 262: return 274;
 350         case 263:  return  281;
 351         case 264: return 275;
 352         case 265: return 276;
 353         case 266:  return  279; //devil:291
 354         // range handled by default case
 355         case 282: return 293;
 356         case 283:  return  295;
 357         case 284: return 295;
 358         case 285: return 296;
 359         case 286: return 298;
 360         // range handled by default case
 361         case 298:  return  364; //devil:374
 362         // range handled by default case
 363         case 315:  return  361; // broken producer
 364         // range handled by default case
 365         case 327: return 352;
 366         case 328: return 353;
 367         case 329: return 354;
 368         case 330:  return  380;
 369         case 331:  return  379;//373; matching names but not matching textures;
 370         case 332:  return  355;//344; matching names but not matching textures
 371         case 333:  return  409; // lava  //devil:404
 372         case 334: return 356;
 373         case 335: return 357;
 374         case 336: return 358;
 375         case 337: return 359;
 376         case 338: return 360;
 377         case 339: return 361;
 378         case 340: return 362;
 379         case 341: return 364;
 380         case 342: return 363;
 381         case 343: return 366;
 382         case 344: return 365;
 383         case 345: return 368;
 384         case 346: return 376;
 385         case 347: return 370;
 386         case 348: return 367;
 387         case 349:  return  372;
 388         case 350: return 369;
 389         case 351:  return  374;//429; matching names but not matching textures
 390         case 352:  return  375;//387; matching names but not matching textures
 391         case 353:  return 371;
 392         case 354:  return  377;//425; matching names but not matching textures
 393         case 355:  return  408;
 394         case 356: return 378; // lava02
 395         case 357:  return  383;//384; matching names but not matching textures
 396         case 358:  return  384;//385; matching names but not matching textures
 397         case 359:  return  385;//386; matching names but not matching textures
 398         case 360: return 386;
 399         case 361: return 387;
 400         case 362:  return  388; // mntr04a (devil: -1)
 401         case 363: return 388;
 402         case 364: return 391;
 403         case 365: return 392;
 404         case 366: return 393;
 405         case 367: return 394;
 406         case 368: return 395;
 407         case 369: return 396;
 408         case 370:  return  392; // mntr04b (devil: -1)
 409         // range 371 - 584 handled by default
 410         default:
 411                 // ranges:
 412                 if (d1_tmap_num >= 58 && d1_tmap_num <= 87)
 413                         return d1_tmap_num - 24;
 414                 if (d1_tmap_num >= 89 && d1_tmap_num <= 131)
 415                         return d1_tmap_num - 25;
 416                 if (d1_tmap_num >= 267 && d1_tmap_num <= 281)
 417                         return d1_tmap_num + 10;
 418                 if (d1_tmap_num >= 287 && d1_tmap_num <= 297)
 419                         return d1_tmap_num + 13;
 420                 if (d1_tmap_num >= 299 && d1_tmap_num <= 314)
 421                         return d1_tmap_num + 12;
 422                 if (d1_tmap_num >= 316 && d1_tmap_num <= 326)
 423                         return d1_tmap_num + 11;
 424                 // wall01 and door frames:
 425                 if (d1_tmap_num > 370 && d1_tmap_num < 584) {
 426                         if (New_file_format_load) return d1_tmap_num + 64;
 427                         // d1 shareware needs special treatment:
 428                         if (d1_tmap_num < 410) return d1_tmap_num + 68;
 429                         if (d1_tmap_num < 417) return d1_tmap_num + 73;
 430                         if (d1_tmap_num < 446) return d1_tmap_num + 91;
 431                         if (d1_tmap_num < 453) return d1_tmap_num + 104;
 432                         if (d1_tmap_num < 462) return d1_tmap_num + 111;
 433                         if (d1_tmap_num < 486) return d1_tmap_num + 117;
 434                         if (d1_tmap_num < 494) return d1_tmap_num + 141;
 435                         if (d1_tmap_num < 584) return d1_tmap_num + 147;
 436                 }
 437                 { // handle rare case where orientation != 0
 438                         short tmap_num = d1_tmap_num &  TMAP_NUM_MASK;
 439                         short orient = d1_tmap_num & ~TMAP_NUM_MASK;
 440                         if (orient != 0) {
 441                                 return orient | convert_d1_tmap_num(tmap_num);
 442                         } else {
 443                                 Warning("can't convert unknown descent 1 texture #%d.\n", tmap_num);
 444                                 return d1_tmap_num;
 445                         }
 446                 }
 447         }
 448 }
 449
 450 #ifdef EDITOR
 451
 452 static char old_tmap_list[MAX_TEXTURES][FILENAME_LEN];
 453 short tmap_xlate_table[MAX_TEXTURES];
 454 static short tmap_times_used[MAX_TEXTURES];
 455
 456 // -----------------------------------------------------------------------------
 457 //loads from an already-open file
 458 // returns 0=everything ok, 1=old version, -1=error
 459 int load_mine_data(CFILE *LoadFile)
 460 {
 461         int   i, j,oldsizeadjust;
 462         short tmap_xlate;
 463         int     translate;
 464         char    *temptr;
 465         int     mine_start = cftell(LoadFile);
 466
 467         oldsizeadjust=(sizeof(int)*2)+sizeof (vms_matrix);
 468         fuelcen_reset();
 469
 470         for (i=0; i<MAX_TEXTURES; i++ )
 471                 tmap_times_used[i] = 0;
 472
 473         #ifdef EDITOR
 474         // Create a new mine to initialize things.
 475         //texpage_goto_first();
 476         create_new_mine();
 477         #endif
 478
 479         //===================== READ FILE INFO ========================
 480
 481         // These are the default values... version and fileinfo_sizeof
 482         // don't have defaults.
 483         mine_fileinfo.header_offset     =   -1;
 484         mine_fileinfo.header_size       =   sizeof(mine_header);
 485         mine_fileinfo.editor_offset     =   -1;
 486         mine_fileinfo.editor_size       =   sizeof(mine_editor);
 487         mine_fileinfo.vertex_offset     =   -1;
 488         mine_fileinfo.vertex_howmany    =   0;
 489         mine_fileinfo.vertex_sizeof     =   sizeof(vms_vector);
 490         mine_fileinfo.segment_offset    =   -1;
 491         mine_fileinfo.segment_howmany   =   0;
 492         mine_fileinfo.segment_sizeof    =   sizeof(segment);
 493         mine_fileinfo.newseg_verts_offset     =   -1;
 494         mine_fileinfo.newseg_verts_howmany    =   0;
 495         mine_fileinfo.newseg_verts_sizeof     =   sizeof(vms_vector);
 496         mine_fileinfo.group_offset                =     -1;
 497         mine_fileinfo.group_howmany       =     0;
 498         mine_fileinfo.group_sizeof                =     sizeof(group);
 499         mine_fileinfo.texture_offset    =   -1;
 500         mine_fileinfo.texture_howmany   =   0;
 501         mine_fileinfo.texture_sizeof    =   FILENAME_LEN;  // num characters in a name
 502         mine_fileinfo.walls_offset                =     -1;
 503         mine_fileinfo.walls_howmany       =     0;
 504         mine_fileinfo.walls_sizeof                =     sizeof(wall);
 505         mine_fileinfo.triggers_offset     =     -1;
 506         mine_fileinfo.triggers_howmany  =       0;
 507         mine_fileinfo.triggers_sizeof     =     sizeof(trigger);
 508         mine_fileinfo.object_offset             =       -1;
 509         mine_fileinfo.object_howmany            =       1;
 510         mine_fileinfo.object_sizeof             =       sizeof(object);
 511
 512         mine_fileinfo.level_shake_frequency             =       0;
 513         mine_fileinfo.level_shake_duration              =       0;
 514
 515         //      Delta light stuff for blowing out light sources.
 516 //      if (mine_top_fileinfo.fileinfo_version >= 19) {
 517                 mine_fileinfo.dl_indices_offset         =       -1;
 518                 mine_fileinfo.dl_indices_howmany                =       0;
 519                 mine_fileinfo.dl_indices_sizeof         =       sizeof(dl_index);
 520
 521                 mine_fileinfo.delta_light_offset                =       -1;
 522                 mine_fileinfo.delta_light_howmany               =       0;
 523                 mine_fileinfo.delta_light_sizeof                =       sizeof(delta_light);
 524
 525 //      }
 526
 527         mine_fileinfo.segment2_offset           = -1;
 528         mine_fileinfo.segment2_howmany  = 0;
 529         mine_fileinfo.segment2_sizeof    = sizeof(segment2);
 530
 531         // Read in mine_top_fileinfo to get size of saved fileinfo.
 532
 533         memset( &mine_top_fileinfo, 0, sizeof(mine_top_fileinfo) );
 534
 535         if (cfseek( LoadFile, mine_start, SEEK_SET ))
 536                 Error( "Error moving to top of file in gamemine.c" );
 537
 538         if (cfread( &mine_top_fileinfo, sizeof(mine_top_fileinfo), 1, LoadFile )!=1)
 539                 Error( "Error reading mine_top_fileinfo in gamemine.c" );
 540
 541         if (mine_top_fileinfo.fileinfo_signature != 0x2884)
 542                 return -1;
 543
 544         // Check version number
 545         if (mine_top_fileinfo.fileinfo_version < COMPATIBLE_VERSION )
 546                 return -1;
 547
 548         // Now, Read in the fileinfo
 549         if (cfseek( LoadFile, mine_start, SEEK_SET ))
 550                 Error( "Error seeking to top of file in gamemine.c" );
 551
 552         if (cfread( &mine_fileinfo, mine_top_fileinfo.fileinfo_sizeof, 1, LoadFile )!=1)
 553                 Error( "Error reading mine_fileinfo in gamemine.c" );
 554
 555         if (mine_top_fileinfo.fileinfo_version < 18) {
 556                 mprintf((1, "Old version, setting shake intensity to 0.\n"));
 557                 Level_shake_frequency = 0;
 558                 Level_shake_duration = 0;
 559                 Secret_return_segment = 0;
 560                 Secret_return_orient = vmd_identity_matrix;
 561         } else {
 562                 Level_shake_frequency = mine_fileinfo.level_shake_frequency << 12;
 563                 Level_shake_duration = mine_fileinfo.level_shake_duration << 12;
 564                 Secret_return_segment = mine_fileinfo.secret_return_segment;
 565                 Secret_return_orient = mine_fileinfo.secret_return_orient;
 566         }
 567
 568         //===================== READ HEADER INFO ========================
 569
 570         // Set default values.
 571         mine_header.num_vertices        =   0;
 572         mine_header.num_segments        =   0;
 573
 574         if (mine_fileinfo.header_offset > -1 )
 575         {
 576                 if (cfseek( LoadFile, mine_fileinfo.header_offset, SEEK_SET ))
 577                         Error( "Error seeking to header_offset in gamemine.c" );
 578
 579                 if (cfread( &mine_header, mine_fileinfo.header_size, 1, LoadFile )!=1)
 580                         Error( "Error reading mine_header in gamemine.c" );
 581         }
 582
 583         //===================== READ EDITOR INFO ==========================
 584
 585         // Set default values
 586         mine_editor.current_seg         =   0;
 587         mine_editor.newsegment_offset   =   -1; // To be written
 588         mine_editor.newsegment_size     =   sizeof(segment);
 589         mine_editor.Curside             =   0;
 590         mine_editor.Markedsegp          =   -1;
 591         mine_editor.Markedside          =   0;
 592
 593         if (mine_fileinfo.editor_offset > -1 )
 594         {
 595                 if (cfseek( LoadFile, mine_fileinfo.editor_offset, SEEK_SET ))
 596                         Error( "Error seeking to editor_offset in gamemine.c" );
 597
 598                 if (cfread( &mine_editor, mine_fileinfo.editor_size, 1, LoadFile )!=1)
 599                         Error( "Error reading mine_editor in gamemine.c" );
 600         }
 601
 602         //===================== READ TEXTURE INFO ==========================
 603
 604         if ( (mine_fileinfo.texture_offset > -1) && (mine_fileinfo.texture_howmany > 0))
 605         {
 606                 if (cfseek( LoadFile, mine_fileinfo.texture_offset, SEEK_SET ))
 607                         Error( "Error seeking to texture_offset in gamemine.c" );
 608
 609                 for (i=0; i< mine_fileinfo.texture_howmany; i++ )
 610                 {
 611                         if (cfread( &old_tmap_list[i], mine_fileinfo.texture_sizeof, 1, LoadFile )!=1)
 612                                 Error( "Error reading old_tmap_list[i] in gamemine.c" );
 613                 }
 614         }
 615
 616         //=============== GENERATE TEXTURE TRANSLATION TABLE ===============
 617
 618         translate = 0;
 619
 620         Assert (NumTextures < MAX_TEXTURES);
 621
 622         {
 623                 hashtable ht;
 624
 625                 hashtable_init( &ht, NumTextures );
 626
 627                 // Remove all the file extensions in the textures list
 628
 629                 for (i=0;i<NumTextures;i++)     {
 630                         temptr = strchr(TmapInfo[i].filename, '.');
 631                         if (temptr) *temptr = '\0';
 632                         hashtable_insert( &ht, TmapInfo[i].filename, i );
 633                 }
 634
 635                 // For every texture, search through the texture list
 636                 // to find a matching name.
 637                 for (j=0;j<mine_fileinfo.texture_howmany;j++)   {
 638                         // Remove this texture name's extension
 639                         temptr = strchr(old_tmap_list[j], '.');
 640                         if (temptr) *temptr = '\0';
 641
 642                         tmap_xlate_table[j] = hashtable_search( &ht,old_tmap_list[j]);
 643                         if (tmap_xlate_table[j] < 0 )   {
 644                                 //tmap_xlate_table[j] = 0;
 645                                 // mprintf( (0, "Couldn't find texture '%s'\n", old_tmap_list[j] ));
 646                                 ;
 647                         }
 648                         if (tmap_xlate_table[j] != j ) translate = 1;
 649                         if (tmap_xlate_table[j] >= 0)
 650                                 tmap_times_used[tmap_xlate_table[j]]++;
 651                 }
 652
 653                 {
 654                         int count = 0;
 655                         for (i=0; i<MAX_TEXTURES; i++ )
 656                                 if (tmap_times_used[i])
 657                                         count++;
 658                         mprintf( (0, "This mine has %d unique textures in it (~%d KB)\n", count, (count*4096) /1024 ));
 659                 }
 660
 661                 // -- mprintf( (0, "Translate=%d\n", translate ));
 662
 663                 hashtable_free( &ht );
 664         }
 665
 666         //====================== READ VERTEX INFO ==========================
 667
 668         // New check added to make sure we don't read in too many vertices.
 669         if ( mine_fileinfo.vertex_howmany > MAX_VERTICES )
 670                 {
 671                 mprintf((0, "Num vertices exceeds maximum.  Loading MAX %d vertices\n", MAX_VERTICES));
 672                 mine_fileinfo.vertex_howmany = MAX_VERTICES;
 673                 }
 674
 675         if ( (mine_fileinfo.vertex_offset > -1) && (mine_fileinfo.vertex_howmany > 0))
 676         {
 677                 if (cfseek( LoadFile, mine_fileinfo.vertex_offset, SEEK_SET ))
 678                         Error( "Error seeking to vertex_offset in gamemine.c" );
 679
 680                 for (i=0; i< mine_fileinfo.vertex_howmany; i++ )
 681                 {
 682                         // Set the default values for this vertex
 683                         Vertices[i].x = 1;
 684                         Vertices[i].y = 1;
 685                         Vertices[i].z = 1;
 686
 687                         if (cfread( &Vertices[i], mine_fileinfo.vertex_sizeof, 1, LoadFile )!=1)
 688                                 Error( "Error reading Vertices[i] in gamemine.c" );
 689                 }
 690         }
 691
 692         //==================== READ SEGMENT INFO ===========================
 693
 694         // New check added to make sure we don't read in too many segments.
 695         if ( mine_fileinfo.segment_howmany > MAX_SEGMENTS ) {
 696                 mprintf((0, "Num segments exceeds maximum.  Loading MAX %d segments\n", MAX_SEGMENTS));
 697                 mine_fileinfo.segment_howmany = MAX_SEGMENTS;
 698                 mine_fileinfo.segment2_howmany = MAX_SEGMENTS;
 699         }
 700
 701         // [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();
 702
 703         if ( (mine_fileinfo.segment_offset > -1) && (mine_fileinfo.segment_howmany > 0))        {
 704
 705                 if (cfseek( LoadFile, mine_fileinfo.segment_offset,SEEK_SET ))
 706
 707                         Error( "Error seeking to segment_offset in gamemine.c" );
 708
 709                 Highest_segment_index = mine_fileinfo.segment_howmany-1;
 710
 711                 for (i=0; i< mine_fileinfo.segment_howmany; i++ ) {
 712
 713                         // Set the default values for this segment (clear to zero )
 714                         //memset( &Segments[i], 0, sizeof(segment) );
 715
 716                         if (mine_top_fileinfo.fileinfo_version < 20) {
 717                                 v16_segment v16_seg;
 718
 719                                 Assert(mine_fileinfo.segment_sizeof == sizeof(v16_seg));
 720
 721                                 if (cfread( &v16_seg, mine_fileinfo.segment_sizeof, 1, LoadFile )!=1)
 722                                         Error( "Error reading segments in gamemine.c" );
 723
 724                                 #ifdef EDITOR
 725                                 Segments[i].segnum = v16_seg.segnum;
 726                                 // -- Segments[i].pad = v16_seg.pad;
 727                                 #endif
 728
 729                                 for (j=0; j<MAX_SIDES_PER_SEGMENT; j++)
 730                                         Segments[i].sides[j] = v16_seg.sides[j];
 731
 732                                 for (j=0; j<MAX_SIDES_PER_SEGMENT; j++)
 733                                         Segments[i].children[j] = v16_seg.children[j];
 734
 735                                 for (j=0; j<MAX_VERTICES_PER_SEGMENT; j++)
 736                                         Segments[i].verts[j] = v16_seg.verts[j];
 737
 738                                 Segment2s[i].special = v16_seg.special;
 739                                 Segment2s[i].value = v16_seg.value;
 740                                 Segment2s[i].s2_flags = 0;
 741                                 Segment2s[i].matcen_num = v16_seg.matcen_num;
 742                                 Segment2s[i].static_light = v16_seg.static_light;
 743                                 fuelcen_activate( &Segments[i], Segment2s[i].special );
 744
 745                         } else  {
 746                                 if (cfread( &Segments[i], mine_fileinfo.segment_sizeof, 1, LoadFile )!=1)
 747                                         Error("Unable to read segment %i\n", i);
 748                         }
 749
 750                         Segments[i].objects = -1;
 751                         #ifdef EDITOR
 752                         Segments[i].group = -1;
 753                         #endif
 754
 755                         if (mine_top_fileinfo.fileinfo_version < 15) {  //used old uvl ranges
 756                                 int sn,uvln;
 757
 758                                 for (sn=0;sn<MAX_SIDES_PER_SEGMENT;sn++)
 759                                         for (uvln=0;uvln<4;uvln++) {
 760                                                 Segments[i].sides[sn].uvls[uvln].u /= 64;
 761                                                 Segments[i].sides[sn].uvls[uvln].v /= 64;
 762                                                 Segments[i].sides[sn].uvls[uvln].l /= 32;
 763                                         }
 764                         }
 765
 766                         if (translate == 1)
 767                                 for (j=0;j<MAX_SIDES_PER_SEGMENT;j++) {
 768                                         unsigned short orient;
 769                                         tmap_xlate = Segments[i].sides[j].tmap_num;
 770                                         Segments[i].sides[j].tmap_num = tmap_xlate_table[tmap_xlate];
 771                                         if ((WALL_IS_DOORWAY(&Segments[i],j) & WID_RENDER_FLAG))
 772                                                 if (Segments[i].sides[j].tmap_num < 0)  {
 773                                                         mprintf( (0, "Couldn't find texture '%s' for Segment %d, side %d\n", old_tmap_list[tmap_xlate],i,j));
 774                                                         Int3();
 775                                                         Segments[i].sides[j].tmap_num = NumTextures-1;
 776                                                 }
 777                                         tmap_xlate = Segments[i].sides[j].tmap_num2 & TMAP_NUM_MASK;
 778                                         orient = Segments[i].sides[j].tmap_num2 & (~TMAP_NUM_MASK);
 779                                         if (tmap_xlate != 0) {
 780                                                 int xlated_tmap = tmap_xlate_table[tmap_xlate];
 781
 782                                                 if ((WALL_IS_DOORWAY(&Segments[i],j) & WID_RENDER_FLAG))
 783                                                         if (xlated_tmap <= 0)   {
 784                                                                 mprintf( (0, "Couldn't find texture '%s' for Segment %d, side %d\n", old_tmap_list[tmap_xlate],i,j));
 785                                                                 Int3();
 786                                                                 Segments[i].sides[j].tmap_num2 = NumTextures-1;
 787                                                         }
 788                                                 Segments[i].sides[j].tmap_num2 = xlated_tmap | orient;
 789                                         }
 790                                 }
 791                 }
 792
 793
 794                 if (mine_top_fileinfo.fileinfo_version >= 20)
 795                         for (i=0; i<=Highest_segment_index; i++) {
 796                                 cfread(&Segment2s[i], sizeof(segment2), 1, LoadFile);
 797                                 fuelcen_activate( &Segments[i], Segment2s[i].special );
 798                         }
 799         }
 800
 801         //===================== READ NEWSEGMENT INFO =====================
 802
 803         #ifdef EDITOR
 804
 805         {               // Default segment created.
 806                 vms_vector      sizevec;
 807                 med_create_new_segment(vm_vec_make(&sizevec,DEFAULT_X_SIZE,DEFAULT_Y_SIZE,DEFAULT_Z_SIZE));             // New_segment = Segments[0];
 808                 //memset( &New_segment, 0, sizeof(segment) );
 809         }
 810
 811         if (mine_editor.newsegment_offset > -1)
 812         {
 813                 if (cfseek( LoadFile, mine_editor.newsegment_offset,SEEK_SET ))
 814                         Error( "Error seeking to newsegment_offset in gamemine.c" );
 815                 if (cfread( &New_segment, mine_editor.newsegment_size,1,LoadFile )!=1)
 816                         Error( "Error reading new_segment in gamemine.c" );
 817         }
 818
 819         if ( (mine_fileinfo.newseg_verts_offset > -1) && (mine_fileinfo.newseg_verts_howmany > 0))
 820         {
 821                 if (cfseek( LoadFile, mine_fileinfo.newseg_verts_offset, SEEK_SET ))
 822                         Error( "Error seeking to newseg_verts_offset in gamemine.c" );
 823                 for (i=0; i< mine_fileinfo.newseg_verts_howmany; i++ )
 824                 {
 825                         // Set the default values for this vertex
 826                         Vertices[NEW_SEGMENT_VERTICES+i].x = 1;
 827                         Vertices[NEW_SEGMENT_VERTICES+i].y = 1;
 828                         Vertices[NEW_SEGMENT_VERTICES+i].z = 1;
 829
 830                         if (cfread( &Vertices[NEW_SEGMENT_VERTICES+i], mine_fileinfo.newseg_verts_sizeof,1,LoadFile )!=1)
 831                                 Error( "Error reading Vertices[NEW_SEGMENT_VERTICES+i] in gamemine.c" );
 832
 833                         New_segment.verts[i] = NEW_SEGMENT_VERTICES+i;
 834                 }
 835         }
 836
 837         #endif
 838
 839         //========================= UPDATE VARIABLES ======================
 840
 841         #ifdef EDITOR
 842
 843         // Setting to Markedsegp to NULL ignores Curside and Markedside, which
 844         // we want to do when reading in an old file.
 845
 846         Markedside = mine_editor.Markedside;
 847         Curside = mine_editor.Curside;
 848         for (i=0;i<10;i++)
 849                 Groupside[i] = mine_editor.Groupside[i];
 850
 851         if ( mine_editor.current_seg != -1 )
 852                 Cursegp = mine_editor.current_seg + Segments;
 853         else
 854                 Cursegp = NULL;
 855
 856         if (mine_editor.Markedsegp != -1 )
 857                 Markedsegp = mine_editor.Markedsegp + Segments;
 858         else
 859                 Markedsegp = NULL;
 860
 861         num_groups = 0;
 862         current_group = -1;
 863
 864         #endif
 865
 866         Num_vertices = mine_fileinfo.vertex_howmany;
 867         Num_segments = mine_fileinfo.segment_howmany;
 868         Highest_vertex_index = Num_vertices-1;
 869         Highest_segment_index = Num_segments-1;
 870
 871         reset_objects(1);               //one object, the player
 872
 873         #ifdef EDITOR
 874         Highest_vertex_index = MAX_SEGMENT_VERTICES-1;
 875         Highest_segment_index = MAX_SEGMENTS-1;
 876         set_vertex_counts();
 877         Highest_vertex_index = Num_vertices-1;
 878         Highest_segment_index = Num_segments-1;
 879
 880         warn_if_concave_segments();
 881         #endif
 882
 883         #ifdef EDITOR
 884                 validate_segment_all();
 885         #endif
 886
 887         //create_local_segment_data();
 888
 889         //gamemine_find_textures();
 890
 891         if (mine_top_fileinfo.fileinfo_version < MINE_VERSION )
 892                 return 1;               //old version
 893         else
 894                 return 0;
 895
 896 }
 897 #endif
 898
 899 #define COMPILED_MINE_VERSION 0
 900
 901 void read_children(int segnum,ubyte bit_mask,CFILE *LoadFile)
 902 {
 903         int bit;
 904
 905         for (bit=0; bit<MAX_SIDES_PER_SEGMENT; bit++) {
 906                 if (bit_mask & (1 << bit)) {
 907                         Segments[segnum].children[bit] = cfile_read_short(LoadFile);
 908                 } else
 909                         Segments[segnum].children[bit] = -1;
 910         }
 911 }
 912
 913 void read_verts(int segnum,CFILE *LoadFile)
 914 {
 915         int i;
 916         // Read short Segments[segnum].verts[MAX_VERTICES_PER_SEGMENT]
 917         for (i = 0; i < MAX_VERTICES_PER_SEGMENT; i++)
 918                 Segments[segnum].verts[i] = cfile_read_short(LoadFile);
 919 }
 920
 921 void read_special(int segnum,ubyte bit_mask,CFILE *LoadFile)
 922 {
 923         if (bit_mask & (1 << MAX_SIDES_PER_SEGMENT)) {
 924                 // Read ubyte   Segment2s[segnum].special
 925                 Segment2s[segnum].special = cfile_read_byte(LoadFile);
 926                 // Read byte    Segment2s[segnum].matcen_num
 927                 Segment2s[segnum].matcen_num = cfile_read_byte(LoadFile);
 928                 // Read short   Segment2s[segnum].value
 929                 Segment2s[segnum].value = cfile_read_short(LoadFile);
 930         } else {
 931                 Segment2s[segnum].special = 0;
 932                 Segment2s[segnum].matcen_num = -1;
 933                 Segment2s[segnum].value = 0;
 934         }
 935 }
 936
 937 int load_mine_data_compiled(CFILE *LoadFile)
 938 {
 939         int     i, segnum, sidenum;
 940         ubyte   compiled_version;
 941         short   temp_short;
 942         ushort  temp_ushort;
 943         ubyte   bit_mask;
 944
 945         if (!strcmp(strchr(Gamesave_current_filename, '.'), ".sdl"))
 946                 New_file_format_load = 0; // descent 1 shareware
 947         else
 948                 New_file_format_load = 1;
 949
 950         //      For compiled levels, textures map to themselves, prevent tmap_override always being gray,
 951         //      bug which Matt and John refused to acknowledge, so here is Mike, fixing it.
 952 #ifdef EDITOR
 953         for (i=0; i<MAX_TEXTURES; i++)
 954                 tmap_xlate_table[i] = i;
 955 #endif
 956
 957 //      memset( Segments, 0, sizeof(segment)*MAX_SEGMENTS );
 958         fuelcen_reset();
 959
 960         //=============================== Reading part ==============================
 961         compiled_version = cfile_read_byte(LoadFile);
 962         //Assert( compiled_version==COMPILED_MINE_VERSION );
 963         if (compiled_version!=COMPILED_MINE_VERSION)
 964                 mprintf((0,"compiled mine version=%i\n", compiled_version)); //many levels have "wrong" versions.  Theres no point in aborting because of it, I think.
 965
 966         if (New_file_format_load)
 967                 Num_vertices = cfile_read_short(LoadFile);
 968         else
 969                 Num_vertices = cfile_read_int(LoadFile);
 970         Assert( Num_vertices <= MAX_VERTICES );
 971
 972         if (New_file_format_load)
 973                 Num_segments = cfile_read_short(LoadFile);
 974         else
 975                 Num_segments = cfile_read_int(LoadFile);
 976         Assert( Num_segments <= MAX_SEGMENTS );
 977
 978         for (i = 0; i < Num_vertices; i++)
 979                 cfile_read_vector( &(Vertices[i]), LoadFile);
 980
 981         for (segnum=0; segnum<Num_segments; segnum++ )  {
 982
 983                 #ifdef EDITOR
 984                 Segments[segnum].segnum = segnum;
 985                 Segments[segnum].group = 0;
 986                 #endif
 987
 988                 if (New_file_format_load)
 989                         bit_mask = cfile_read_byte(LoadFile);
 990                 else
 991                         bit_mask = 0x7f; // read all six children and special stuff...
 992
 993                 if (Gamesave_current_version == 5) { // d2 SHAREWARE level
 994                         read_special(segnum,bit_mask,LoadFile);
 995                         read_verts(segnum,LoadFile);
 996                         read_children(segnum,bit_mask,LoadFile);
 997                 } else {
 998                         read_children(segnum,bit_mask,LoadFile);
 999                         read_verts(segnum,LoadFile);
1000                         if (Gamesave_current_version <= 1) { // descent 1 level
1001                                 read_special(segnum,bit_mask,LoadFile);
1002                         }
1003                 }
1004
1005                 Segments[segnum].objects = -1;
1006
1007                 if (Gamesave_current_version <= 5) { // descent 1 thru d2 SHAREWARE level
1008                         // Read fix     Segments[segnum].static_light (shift down 5 bits, write as short)
1009                         temp_ushort = cfile_read_short(LoadFile);
1010                         Segment2s[segnum].static_light  = ((fix)temp_ushort) << 4;
1011                         //cfread( &Segments[segnum].static_light, sizeof(fix), 1, LoadFile );
1012                 }
1013
1014                 // Read the walls as a 6 byte array
1015                 for (sidenum=0; sidenum<MAX_SIDES_PER_SEGMENT; sidenum++ )      {
1016                         Segments[segnum].sides[sidenum].pad = 0;
1017                 }
1018
1019                 if (New_file_format_load)
1020                         bit_mask = cfile_read_byte(LoadFile);
1021                 else
1022                         bit_mask = 0x3f; // read all six sides
1023                 for (sidenum=0; sidenum<MAX_SIDES_PER_SEGMENT; sidenum++) {
1024                         ubyte byte_wallnum;
1025
1026                         if (bit_mask & (1 << sidenum)) {
1027                                 byte_wallnum = cfile_read_byte(LoadFile);
1028                                 if ( byte_wallnum == 255 )
1029                                         Segments[segnum].sides[sidenum].wall_num = -1;
1030                                 else
1031                                         Segments[segnum].sides[sidenum].wall_num = byte_wallnum;
1032                         } else
1033                                         Segments[segnum].sides[sidenum].wall_num = -1;
1034                 }
1035
1036                 for (sidenum=0; sidenum<MAX_SIDES_PER_SEGMENT; sidenum++ )      {
1037
1038                         if ( (Segments[segnum].children[sidenum]==-1) || (Segments[segnum].sides[sidenum].wall_num!=-1) )       {
1039                                 // Read short Segments[segnum].sides[sidenum].tmap_num;
1040                                 if (New_file_format_load) {
1041                                         temp_ushort = cfile_read_short(LoadFile);
1042                                         Segments[segnum].sides[sidenum].tmap_num = temp_ushort & 0x7fff;
1043                                 } else
1044                                         Segments[segnum].sides[sidenum].tmap_num = cfile_read_short(LoadFile);
1045
1046                                 if (Gamesave_current_version <= 1)
1047                                         Segments[segnum].sides[sidenum].tmap_num = convert_d1_tmap_num(Segments[segnum].sides[sidenum].tmap_num);
1048
1049                                 if (New_file_format_load && !(temp_ushort & 0x8000))
1050                                         Segments[segnum].sides[sidenum].tmap_num2 = 0;
1051                                 else {
1052                                         // Read short Segments[segnum].sides[sidenum].tmap_num2;
1053                                         Segments[segnum].sides[sidenum].tmap_num2 = cfile_read_short(LoadFile);
1054                                         if (Gamesave_current_version <= 1 && Segments[segnum].sides[sidenum].tmap_num2 != 0)
1055                                                 Segments[segnum].sides[sidenum].tmap_num2 = convert_d1_tmap_num(Segments[segnum].sides[sidenum].tmap_num2);
1056                                 }
1057
1058                                 // Read uvl Segments[segnum].sides[sidenum].uvls[4] (u,v>>5, write as short, l>>1 write as short)
1059                                 for (i=0; i<4; i++ )    {
1060                                         temp_short = cfile_read_short(LoadFile);
1061                                         Segments[segnum].sides[sidenum].uvls[i].u = ((fix)temp_short) << 5;
1062                                         temp_short = cfile_read_short(LoadFile);
1063                                         Segments[segnum].sides[sidenum].uvls[i].v = ((fix)temp_short) << 5;
1064                                         temp_ushort = cfile_read_short(LoadFile);
1065                                         Segments[segnum].sides[sidenum].uvls[i].l = ((fix)temp_ushort) << 1;
1066                                         //cfread( &Segments[segnum].sides[sidenum].uvls[i].l, sizeof(fix), 1, LoadFile );
1067                                 }
1068                         } else {
1069                                 Segments[segnum].sides[sidenum].tmap_num = 0;
1070                                 Segments[segnum].sides[sidenum].tmap_num2 = 0;
1071                                 for (i=0; i<4; i++ )    {
1072                                         Segments[segnum].sides[sidenum].uvls[i].u = 0;
1073                                         Segments[segnum].sides[sidenum].uvls[i].v = 0;
1074                                         Segments[segnum].sides[sidenum].uvls[i].l = 0;
1075                                 }
1076                         }
1077                 }
1078         }
1079
1080 #if 0
1081         {
1082                 FILE *fp;
1083
1084                 fp = fopen("segments.out", "wt");
1085                 for (i = 0; i <= Highest_segment_index; i++) {
1086                         side    sides[MAX_SIDES_PER_SEGMENT];   // 6 sides
1087                         short   children[MAX_SIDES_PER_SEGMENT];        // indices of 6 children segments, front, left, top, right, bottom, back
1088                         short   verts[MAX_VERTICES_PER_SEGMENT];        // vertex ids of 4 front and 4 back vertices
1089                         int             objects;                                                                // pointer to objects in this segment
1090
1091                         for (j = 0; j < MAX_SIDES_PER_SEGMENT; j++) {
1092                                 byte    type;                                                                   // replaces num_faces and tri_edge, 1 = quad, 2 = 0:2 triangulation, 3 = 1:3 triangulation
1093                                 ubyte   pad;                                                                    //keep us longword alligned
1094                                 short   wall_num;
1095                                 short   tmap_num;
1096                                 short   tmap_num2;
1097                                 uvl             uvls[4];
1098                                 vms_vector      normals[2];                                             // 2 normals, if quadrilateral, both the same.
1099                                 fprintf(fp, "%d\n", Segments[i].sides[j].type);
1100                                 fprintf(fp, "%d\n", Segments[i].sides[j].pad);
1101                                 fprintf(fp, "%d\n", Segments[i].sides[j].wall_num);
1102                                 fprintf(fp, "%d\n", Segments[i].tmap_num);
1103
1104                         }
1105                         fclose(fp);
1106                 }
1107         }
1108 #endif
1109
1110         Highest_vertex_index = Num_vertices-1;
1111         Highest_segment_index = Num_segments-1;
1112
1113         validate_segment_all();                 // Fill in side type and normals.
1114
1115         for (i=0; i<Num_segments; i++) {
1116                 if (Gamesave_current_version > 5)
1117                         segment2_read(&Segment2s[i], LoadFile);
1118                 fuelcen_activate( &Segments[i], Segment2s[i].special );
1119         }
1120
1121         reset_objects(1);               //one object, the player
1122
1123         return 0;
1124 }