main/state.c

   1 /*
   2 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
   3 SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO
   4 END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
   5 ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
   6 IN USING, DISPLAYING,  AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
   7 SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
   8 FREE PURPOSES.  IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
   9 CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES.  THE END-USER UNDERSTANDS
  10 AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
  11 COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
  12 */
  13
  14
  15 #ifdef RCS
  16 char state_rcsid[] = "$Id: state.c,v 1.3 2001-01-31 14:04:45 bradleyb Exp $";
  17 #endif
  18
  19 #include <conf.h>
  20
  21 #ifdef WINDOWS
  22 #include "desw.h"
  23 #endif
  24
  25
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <math.h>
  29 #include <string.h>
  30 #include <unistd.h>
  31 #include <errno.h>
  32 #ifdef MACINTOSH
  33 #include <Files.h>
  34 #endif
  35
  36 #include "pstypes.h"
  37 #include "pa_enabl.h"                   //$$POLY_ACC
  38 #include "mono.h"
  39 #include "inferno.h"
  40 #include "segment.h"
  41 #include "textures.h"
  42 #include "wall.h"
  43 #include "object.h"
  44 #include "digi.h"
  45 #include "gamemine.h"
  46 #include "error.h"
  47 #include "gameseg.h"
  48 #include "menu.h"
  49 #include "switch.h"
  50 #include "game.h"
  51 #include "screens.h"
  52 #include "newmenu.h"
  53 #include "cfile.h"
  54 #include "fuelcen.h"
  55 #include "hash.h"
  56 #include "key.h"
  57 #include "piggy.h"
  58 #include "player.h"
  59 #include "cntrlcen.h"
  60 #include "morph.h"
  61 #include "weapon.h"
  62 #include "render.h"
  63 #include "gameseq.h"
  64 #include "gauges.h"
  65 #include "newdemo.h"
  66 #include "automap.h"
  67 #include "piggy.h"
  68 #include "paging.h"
  69 #include "titles.h"
  70 #include "text.h"
  71 #include "mission.h"
  72 #include "pcx.h"
  73 #include "u_mem.h"
  74 #include "network.h"
  75 #include "args.h"
  76 #include "ai.h"
  77 #include "fireball.h"
  78 #include "controls.h"
  79 #include "laser.h"
  80 #include "multibot.h"
  81 #include "state.h"
  82
  83 #if defined(POLY_ACC)
  84 #include "poly_acc.h"
  85 #endif
  86
  87 #define STATE_VERSION 22
  88 #define STATE_COMPATIBLE_VERSION 20
  89 // 0 - Put DGSS (Descent Game State Save) id at tof.
  90 // 1 - Added Difficulty level save
  91 // 2 - Added Cheats_enabled flag
  92 // 3 - Added between levels save.
  93 // 4 - Added mission support
  94 // 5 - Mike changed ai and object structure.
  95 // 6 - Added buggin' cheat save
  96 // 7 - Added other cheat saves and game_id.
  97 // 8 - Added AI stuff for escort and thief.
  98 // 9 - Save palette with screen shot
  99 // 12- Saved last_was_super array
 100 // 13- Saved palette flash stuff
 101 // 14- Save cloaking wall stuff
 102 // 15- Save additional ai info
 103 // 16- Save Light_subtracted
 104 // 17- New marker save
 105 // 18- Took out saving of old cheat status
 106 // 19- Saved cheats_enabled flag
 107 // 20- First_secret_visit
 108 // 22- Omega_charge
 109
 110 #define NUM_SAVES 9
 111 #define THUMBNAIL_W 100
 112 #define THUMBNAIL_H 50
 113 #define DESC_LENGTH 20
 114
 115 extern void multi_initiate_save_game();
 116 extern void multi_initiate_restore_game();
 117 extern void apply_all_changed_light(void);
 118
 119 extern int Do_appearance_effect;
 120 extern fix Fusion_next_sound_time;
 121
 122 extern int Laser_rapid_fire;
 123 extern int Physics_cheat_flag;
 124 extern int      Lunacy;
 125 extern void do_lunacy_on(void);
 126 extern void do_lunacy_off(void);
 127 extern int First_secret_visit;
 128
 129 int sc_last_item= 0;
 130 grs_bitmap *sc_bmp[NUM_SAVES+1];
 131
 132 char dgss_id[4] = "DGSS";
 133
 134 int state_default_item = 0;
 135
 136 uint state_game_id;
 137
 138 extern int robot_controlled[MAX_ROBOTS_CONTROLLED];
 139 extern int robot_agitation[MAX_ROBOTS_CONTROLLED];
 140 extern fix robot_controlled_time[MAX_ROBOTS_CONTROLLED];
 141 extern fix robot_last_send_time[MAX_ROBOTS_CONTROLLED];
 142 extern fix robot_last_message_time[MAX_ROBOTS_CONTROLLED];
 143 extern int robot_send_pending[MAX_ROBOTS_CONTROLLED];
 144 extern int robot_fired[MAX_ROBOTS_CONTROLLED];
 145 extern byte robot_fire_buf[MAX_ROBOTS_CONTROLLED][18+3];
 146
 147
 148 #if defined(WINDOWS) || defined(MACINTOSH)
 149 extern ubyte Hack_DblClick_MenuMode;
 150 #endif
 151
 152 void compute_all_static_light(void);
 153
 154 //-------------------------------------------------------------------
 155 void state_callback(int nitems,newmenu_item * items, int * last_key, int citem)
 156 {
 157         nitems = nitems;
 158         last_key = last_key;
 159
 160 //      if ( sc_last_item != citem )    {
 161 //              sc_last_item = citem;
 162                 if ( citem > 0 )        {
 163                         if ( sc_bmp[citem-1] )  {
 164                                 if (MenuHires) {
 165                                 WINDOS(
 166                                         dd_grs_canvas *save_canv = dd_grd_curcanv,
 167                                         grs_canvas *save_canv = grd_curcanv
 168                                 );
 169                                         grs_canvas *temp_canv = gr_create_canvas(THUMBNAIL_W*2,(THUMBNAIL_H*24/10));
 170                                         grs_point vertbuf[3] = {{0,0}, {0,0}, {i2f(THUMBNAIL_W*2),i2f(THUMBNAIL_H*24/10)} };
 171                                         gr_set_current_canvas(temp_canv);
 172                                         scale_bitmap(sc_bmp[citem-1], vertbuf, 0 );
 173                                 WINDOS(
 174                                         dd_gr_set_current_canvas(save_canv),
 175                                         gr_set_current_canvas( save_canv )
 176                                 );
 177                                 WIN(DDGRLOCK(dd_grd_curcanv));
 178                                         gr_bitmap( (grd_curcanv->cv_bitmap.bm_w-THUMBNAIL_W*2)/2,items[0].y-10, &temp_canv->cv_bitmap);
 179                                 WIN(DDGRUNLOCK(dd_grd_curcanv));
 180                                         gr_free_canvas(temp_canv);
 181                                 }
 182                                 else    {
 183                                 #ifdef WINDOWS
 184                                         Int3();
 185                                 #else
 186                                         gr_bitmap( (grd_curcanv->cv_bitmap.bm_w-THUMBNAIL_W)/2,items[0].y-5, sc_bmp[citem-1] );
 187                                 #endif
 188                                 }
 189                         }
 190                 }
 191 //      }
 192 }
 193
 194 void rpad_string( char * string, int max_chars )
 195 {
 196         int i, end_found;
 197
 198         end_found = 0;
 199         for( i=0; i<max_chars; i++ )    {
 200                 if ( *string == 0 )
 201                         end_found = 1;
 202                 if ( end_found )
 203                         *string = ' ';
 204                 string++;
 205         }
 206         *string = 0;            // NULL terminate
 207 }
 208
 209 int state_get_save_file(char * fname, char * dsc, int multi )
 210 {
 211         FILE * fp;
 212         int i, choice, version;
 213         newmenu_item m[NUM_SAVES+2];
 214         char filename[NUM_SAVES+1][30];
 215         char desc[NUM_SAVES+1][DESC_LENGTH+16];
 216         char id[5];
 217         int valid=0;
 218
 219         for (i=0;i<NUM_SAVES; i++ )     {
 220                 sc_bmp[i] = NULL;
 221                 if ( !multi )
 222                         #ifndef MACINTOSH
 223                         sprintf( filename[i], "%s.sg%x", Players[Player_num].callsign, i );
 224                         #else
 225                         sprintf( filename[i], ":Players:%s.sg%x", Players[Player_num].callsign, i );
 226                         #endif
 227                 else
 228                         #ifndef MACINTOSH
 229                         sprintf( filename[i], "%s.mg%x", Players[Player_num].callsign, i );
 230                         #else
 231                         sprintf( filename[i], ":Players:%s.mg%x", Players[Player_num].callsign, i );
 232                         #endif
 233                 valid = 0;
 234                 fp = fopen( filename[i], "rb" );
 235                 if ( fp ) {
 236                         //Read id
 237                         fread( id, sizeof(char)*4, 1, fp );
 238                         if ( !memcmp( id, dgss_id, 4 )) {
 239                                 //Read version
 240                                 fread( &version, sizeof(int), 1, fp );
 241                                 if (version >= STATE_COMPATIBLE_VERSION)        {
 242                                         // Read description
 243                                         fread( desc[i], sizeof(char)*DESC_LENGTH, 1, fp );
 244                                         //rpad_string( desc[i], DESC_LENGTH-1 );
 245                                         // Read thumbnail
 246                                         //sc_bmp[i] = gr_create_bitmap(THUMBNAIL_W,THUMBNAIL_H );
 247                                         //fread( sc_bmp[i]->bm_data, THUMBNAIL_W * THUMBNAIL_H, 1, fp );
 248                                         valid = 1;
 249                                 }
 250                         }
 251                         fclose(fp);
 252                 }
 253                 if (!valid) {
 254                         strcpy( desc[i], TXT_EMPTY );
 255                         //rpad_string( desc[i], DESC_LENGTH-1 );
 256                 }
 257                 m[i].type = NM_TYPE_INPUT_MENU; m[i].text = desc[i]; m[i].text_len = DESC_LENGTH-1;
 258         }
 259
 260         sc_last_item = -1;
 261         choice = newmenu_do1( NULL, "Save Game", NUM_SAVES, m, NULL, state_default_item );
 262
 263         for (i=0; i<NUM_SAVES; i++ )    {
 264                 if ( sc_bmp[i] )
 265                         gr_free_bitmap( sc_bmp[i] );
 266         }
 267
 268         if (choice > -1) {
 269                 strcpy( fname, filename[choice] );
 270                 strcpy( dsc, desc[choice] );
 271                 state_default_item = choice;
 272                 return choice+1;
 273         }
 274         return 0;
 275 }
 276
 277 int RestoringMenu=0;
 278 extern int Current_display_mode;
 279
 280 int state_get_restore_file(char * fname, int multi)
 281 {
 282         FILE * fp;
 283         int i, choice, version, nsaves;
 284         newmenu_item m[NUM_SAVES+2];
 285         char filename[NUM_SAVES+1][30];
 286         char desc[NUM_SAVES+1][DESC_LENGTH + 16];
 287         char id[5];
 288         int valid;
 289
 290         nsaves=0;
 291         m[0].type = NM_TYPE_TEXT; m[0].text = "\n\n\n\n";
 292         for (i=0;i<NUM_SAVES+1; i++ )   {
 293                 sc_bmp[i] = NULL;
 294                 if (!multi)
 295                         #ifndef MACINTOSH
 296                         sprintf( filename[i], "%s.sg%x", Players[Player_num].callsign, i );
 297                         #else
 298                         sprintf( filename[i], ":Players:%s.sg%x", Players[Player_num].callsign, i );
 299                         #endif
 300                 else
 301                         #ifndef MACINTOSH
 302                         sprintf( filename[i], "%s.mg%x", Players[Player_num].callsign, i );
 303                         #else
 304                         sprintf( filename[i], ":Players:%s.mg%x", Players[Player_num].callsign, i );
 305                         #endif
 306                 valid = 0;
 307                 fp = fopen( filename[i], "rb" );
 308                 if ( fp ) {
 309                         //Read id
 310                         fread( id, sizeof(char)*4, 1, fp );
 311                         if ( !memcmp( id, dgss_id, 4 )) {
 312                                 //Read version
 313                                 fread( &version, sizeof(int), 1, fp );
 314                                 if (version >= STATE_COMPATIBLE_VERSION)        {
 315                                         // Read description
 316                                         fread( desc[i], sizeof(char)*DESC_LENGTH, 1, fp );
 317                                         //rpad_string( desc[i], DESC_LENGTH-1 );
 318                                         m[i+1].type = NM_TYPE_MENU; m[i+1].text = desc[i];
 319                                         // Read thumbnail
 320                                         sc_bmp[i] = gr_create_bitmap(THUMBNAIL_W,THUMBNAIL_H );
 321                                         fread( sc_bmp[i]->bm_data, THUMBNAIL_W * THUMBNAIL_H, 1, fp );
 322                                         if (version >= 9) {
 323                                                 ubyte pal[256*3];
 324                                                 fread( pal, 3, 256, fp);
 325                                                 gr_remap_bitmap_good( sc_bmp[i], pal, -1, -1 );
 326                                         }
 327                                         nsaves++;
 328                                         valid = 1;
 329                                 }
 330                         }
 331                         fclose(fp);
 332                 }
 333                 if (!valid) {
 334                         strcpy( desc[i], TXT_EMPTY );
 335                         //rpad_string( desc[i], DESC_LENGTH-1 );
 336                         m[i+1].type = NM_TYPE_TEXT; m[i+1].text = desc[i];
 337                 }
 338         }
 339
 340         if ( nsaves < 1 )       {
 341                 nm_messagebox( NULL, 1, "Ok", "No saved games were found!" );
 342                 return 0;
 343         }
 344
 345         if (Current_display_mode == 3)  //restore menu won't fit on 640x400
 346                 VR_screen_flags ^= VRF_COMPATIBLE_MENUS;
 347
 348         sc_last_item = -1;
 349
 350 #if defined(WINDOWS) || defined(MACINTOSH)
 351         Hack_DblClick_MenuMode = 1;
 352 #endif
 353
 354    RestoringMenu=1;
 355         choice = newmenu_do3( NULL, "Select Game to Restore", NUM_SAVES+2, m, state_callback, state_default_item+1, NULL, 190, -1 );
 356    RestoringMenu=0;
 357
 358 #if defined(WINDOWS) || defined(MACINTOSH)
 359         Hack_DblClick_MenuMode = 0;
 360 #endif
 361
 362         if (Current_display_mode == 3)  //set flag back
 363                 VR_screen_flags ^= VRF_COMPATIBLE_MENUS;
 364
 365
 366         for (i=0; i<NUM_SAVES+1; i++ )  {
 367                 if ( sc_bmp[i] )
 368                         gr_free_bitmap( sc_bmp[i] );
 369         }
 370
 371         if (choice > 0) {
 372                 strcpy( fname, filename[choice-1] );
 373                 if (choice != NUM_SAVES+1)              //no new default when restore from autosave
 374                         state_default_item = choice - 1;
 375                 return choice;
 376         }
 377         return 0;
 378 }
 379
 380 #define DESC_OFFSET     8
 381
 382 //      -----------------------------------------------------------------------------------
 383 //      Return true if the file named *filename exists, else return false.
 384 int file_exists(char *filename)
 385 {
 386         FILE    *fp;
 387
 388         if ((fp = fopen(filename, "rb")) != NULL) {
 389                 fclose(fp);
 390                 return 1;
 391         }
 392
 393         return 0;
 394 }
 395
 396 #define CF_BUF_SIZE     1024
 397
 398 //      -----------------------------------------------------------------------------------
 399 //      Imagine if C had a function to copy a file...
 400 int copy_file(char *old_file, char *new_file)
 401 {
 402         byte    buf[CF_BUF_SIZE];
 403         FILE    *in_file, *out_file;
 404
 405         out_file = fopen(new_file, "wb");
 406
 407         if (out_file == NULL)
 408                 return -1;
 409
 410         in_file = fopen(old_file, "rb");
 411
 412         if (in_file == NULL)
 413                 return -2;
 414
 415         while (!feof(in_file)) {
 416                 int bytes_read;
 417
 418                 bytes_read = fread(buf, 1, CF_BUF_SIZE, in_file);
 419                 if (ferror(in_file))
 420                         Error("Cannot read from file <%s>: %s", old_file, strerror(errno));
 421
 422                 Assert(bytes_read == CF_BUF_SIZE || feof(in_file));
 423
 424                 fwrite(buf, 1, bytes_read, out_file);
 425
 426                 if (ferror(out_file))
 427                         Error("Cannot write to file <%s>: %s", new_file, strerror(errno));
 428         }
 429
 430         if (fclose(in_file)) {
 431                 fclose(out_file);
 432                 return -3;
 433         }
 434
 435         if (fclose(out_file))
 436                 return -4;
 437
 438         return 0;
 439 }
 440
 441 #ifndef MACINTOSH
 442 #define SECRETB_FILENAME        "secret.sgb"
 443 #define SECRETC_FILENAME        "secret.sgc"
 444 #else
 445 #define SECRETB_FILENAME        ":Players:secret.sgb"
 446 #define SECRETC_FILENAME        ":Players:secret.sgc"
 447 #endif
 448
 449 extern int Final_boss_is_dead;
 450
 451 //      -----------------------------------------------------------------------------------
 452 //      blind_save means don't prompt user for any info.
 453 int state_save_all(int between_levels, int secret_save, char *filename_override)
 454 {
 455         int     rval, filenum = -1;
 456
 457         char    filename[128], desc[DESC_LENGTH+1];
 458
 459         Assert(between_levels == 0);    //between levels save ripped out
 460
 461 #ifdef NETWORK
 462         if ( Game_mode & GM_MULTI )     {
 463                         multi_initiate_save_game();
 464                 return 0;
 465         }
 466 #endif
 467
 468         if ((Current_level_num < 0) && (secret_save == 0)) {
 469                 HUD_init_message( "Can't save in secret level!" );
 470                 return 0;
 471         }
 472
 473         if (Final_boss_is_dead)         //don't allow save while final boss is dying
 474                 return 0;
 475
 476         mprintf(( 0, "CL=%d, NL=%d\n", Current_level_num, Next_level_num ));
 477
 478         //      If this is a secret save and the control center has been destroyed, don't allow
 479         //      return to the base level.
 480         if (secret_save && (Control_center_destroyed)) {
 481                 mprintf((0, "Deleting secret.sgb so player can't return to base level.\n"));
 482                 unlink(SECRETB_FILENAME);
 483                 return 0;
 484         }
 485
 486         stop_time();
 487
 488         if (secret_save == 1) {
 489                 filename_override = filename;
 490                 sprintf(filename_override, SECRETB_FILENAME);
 491         } else if (secret_save == 2) {
 492                 filename_override = filename;
 493                 sprintf(filename_override, SECRETC_FILENAME);
 494         } else {
 495                 if (filename_override) {
 496                         strcpy( filename, filename_override);
 497                         sprintf(desc, "[autosave backup]");
 498                 } else if (!(filenum = state_get_save_file(filename,desc,0))) {
 499                         start_time();
 500                         return 0;
 501                 }
 502         }
 503
 504         //      MK, 1/1/96
 505         //      If not in multiplayer, do special secret level stuff.
 506         //      If secret.sgc exists, then copy it to Nsecret.sgc (where N = filenum).
 507         //      If it doesn't exist, then delete Nsecret.sgc
 508         if (!secret_save && !(Game_mode & GM_MULTI)) {
 509                 int     rval;
 510                 char    temp_fname[32], fc;
 511
 512                 if (filenum != -1) {
 513
 514                         if (filenum >= 10)
 515                                 fc = (filenum-10) + 'a';
 516                         else
 517                                 fc = '0' + filenum;
 518
 519                         #ifndef MACINTOSH
 520                         sprintf(temp_fname, "%csecret.sgc", fc);
 521                         #else
 522                         sprintf(temp_fname, ":Players:%csecret.sgc", fc);
 523                         #endif
 524
 525                         mprintf((0, "Trying to copy secret.sgc to %s.\n", temp_fname));
 526
 527                         if (file_exists(temp_fname)) {
 528                                 mprintf((0, "Deleting file %s\n", temp_fname));
 529                                 rval = unlink(temp_fname);
 530                                 Assert(rval == 0);      //      Oops, error deleting file in temp_fname.
 531                         }
 532
 533                         if (file_exists(SECRETC_FILENAME)) {
 534                                 mprintf((0, "Copying secret.sgc to %s.\n", temp_fname));
 535                                 rval = copy_file(SECRETC_FILENAME, temp_fname);
 536                                 Assert(rval == 0);      //      Oops, error copying temp_fname to secret.sgc!
 537                         }
 538                 }
 539         }
 540
 541         //      Save file we're going to save over in last slot and call "[autosave backup]"
 542         if (!filename_override) {
 543                 FILE    *tfp;
 544
 545                 tfp = fopen( filename, "r+b" );
 546
 547                 if ( tfp ) {
 548                         char    newname[128];
 549
 550                         #ifndef MACINTOSH
 551                         sprintf( newname, "%s.sg%x", Players[Player_num].callsign, NUM_SAVES );
 552                         #else
 553                         sprintf( newname, ":Players:%s.sg%x", Players[Player_num].callsign, NUM_SAVES );
 554                         #endif
 555
 556                         fseek( tfp, DESC_OFFSET, SEEK_SET);
 557                         fwrite( "[autosave backup]", sizeof(char)*DESC_LENGTH, 1, tfp );
 558                         fclose(tfp);
 559                         unlink(newname);
 560                         rename(filename, newname);
 561                 }
 562         }
 563
 564         rval = state_save_all_sub(filename, desc, between_levels);
 565
 566         return rval;
 567 }
 568
 569 extern  fix     Flash_effect, Time_flash_last_played;
 570
 571
 572 int state_save_all_sub(char *filename, char *desc, int between_levels)
 573 {
 574         int i,j;
 575         FILE * fp;
 576         grs_canvas * cnv;
 577         #ifdef POLY_ACC
 578         grs_canvas cnv2,*save_cnv2;
 579         #endif
 580         ubyte *pal;
 581
 582         Assert(between_levels == 0);    //between levels save ripped out
 583
 584 /*      if ( Game_mode & GM_MULTI )     {
 585                 {
 586                 start_time();
 587                 return 0;
 588                 }
 589         }*/
 590
 591         #if defined(MACINTOSH) && !defined(NDEBUG)
 592         if ( strncmp(filename, ":Players:", 9) )
 593                 Int3();
 594         #endif
 595
 596         fp = fopen( filename, "wb" );
 597         if ( !fp ) {
 598                 if ( !(Game_mode & GM_MULTI) )
 599                         nm_messagebox(NULL, 1, TXT_OK, "Error writing savegame.\nPossibly out of disk\nspace.");
 600                 start_time();
 601                 return 0;
 602         }
 603
 604 //Save id
 605         fwrite( dgss_id, sizeof(char)*4, 1, fp );
 606
 607 //Save version
 608         i = STATE_VERSION;
 609         fwrite( &i, sizeof(int), 1, fp );
 610
 611 //Save description
 612         fwrite( desc, sizeof(char)*DESC_LENGTH, 1, fp );
 613
 614 // Save the current screen shot...
 615
 616         cnv = gr_create_canvas( THUMBNAIL_W, THUMBNAIL_H );
 617         if ( cnv )
 618         {
 619                 #ifdef WINDOWS
 620                         dd_grs_canvas *cnv_save;
 621                         cnv_save = dd_grd_curcanv;
 622                 #else
 623                         grs_canvas * cnv_save;
 624                         cnv_save = grd_curcanv;
 625                 #endif
 626
 627                 #ifndef MACINTOSH
 628
 629                         #if defined(POLY_ACC)
 630
 631                                         PA_DFX (pa_fool_to_backbuffer());
 632
 633                                         //for poly_acc, we render the frame to the normal render buffer
 634                                         //so that this doesn't show, we create yet another canvas to save
 635                                         //and restore what's on the render buffer
 636                                         PA_DFX (pa_alpha_always());
 637                                         PA_DFX (pa_set_front_to_read());
 638                                         gr_init_sub_canvas( &cnv2, &VR_render_buffer[0], 0, 0, THUMBNAIL_W, THUMBNAIL_H );
 639                                         save_cnv2 = gr_create_canvas2(THUMBNAIL_W, THUMBNAIL_H, cnv2.cv_bitmap.bm_type);
 640                                         gr_set_current_canvas( save_cnv2 );
 641                                         PA_DFX (pa_set_front_to_read());
 642                                         gr_bitmap(0,0,&cnv2.cv_bitmap);
 643                                         gr_set_current_canvas( &cnv2 );
 644                         #else
 645                                         gr_set_current_canvas( cnv );
 646                         #endif
 647
 648                                         PA_DFX (pa_set_backbuffer_current());
 649                                         render_frame(0, 0);
 650                                         PA_DFX (pa_alpha_always());
 651
 652                         #if defined(POLY_ACC)
 653                                         #ifndef MACINTOSH
 654                                         screen_shot_pa(cnv,&cnv2);
 655                                         #else
 656                                         if ( PAEnabled )
 657                                                 screen_shot_pa(cnv,&cnv2);
 658                                         #endif
 659                         #endif
 660
 661                                         pal = gr_palette;
 662
 663                                         fwrite( cnv->cv_bitmap.bm_data, THUMBNAIL_W*THUMBNAIL_H, 1, fp );
 664
 665                         #if defined(POLY_ACC)
 666                                         PA_DFX (pa_alpha_always());
 667                                         PA_DFX (pa_set_frontbuffer_current());
 668                                         PA_DFX(gr_bitmap(0,0,&save_cnv2->cv_bitmap));
 669                                         PA_DFX (pa_set_backbuffer_current());
 670                                         gr_bitmap(0,0,&save_cnv2->cv_bitmap);
 671                                         gr_free_canvas(save_cnv2);
 672                                         PA_DFX (pa_fool_to_offscreen());
 673
 674                         #endif
 675
 676                 #else   // macintosh stuff below
 677                 {
 678                         #if defined(POLY_ACC)
 679                                 int     savePAEnabled = PAEnabled;
 680                                 PAEnabled = false;
 681                         #endif
 682
 683                         gr_set_current_canvas( cnv );
 684                         render_frame(0, 0);
 685                         pal = gr_palette;
 686                         fwrite( cnv->cv_bitmap.bm_data, THUMBNAIL_W*THUMBNAIL_H, 1, fp );
 687
 688                         #if defined(POLY_ACC)
 689                                 PAEnabled = savePAEnabled;
 690                         #endif
 691                 }
 692                 #endif  // end of ifndef macintosh
 693
 694
 695                 WINDOS(
 696                         dd_gr_set_current_canvas(cnv_save),
 697                         gr_set_current_canvas(cnv_save)
 698                 );
 699                 gr_free_canvas( cnv );
 700                 fwrite( pal, 3, 256, fp);
 701         }
 702         else
 703         {
 704                 ubyte color = 0;
 705                 for ( i=0; i<THUMBNAIL_W*THUMBNAIL_H; i++ )
 706                         fwrite( &color, sizeof(ubyte), 1, fp );
 707         }
 708
 709 // Save the Between levels flag...
 710         fwrite( &between_levels, sizeof(int), 1, fp );
 711
 712 // Save the mission info...
 713         mprintf ((0,"HEY! Mission name is %s\n",Mission_list[Current_mission_num].filename));
 714         fwrite( &Mission_list[Current_mission_num], sizeof(char)*9, 1, fp );
 715
 716 //Save level info
 717         fwrite( &Current_level_num, sizeof(int), 1, fp );
 718         fwrite( &Next_level_num, sizeof(int), 1, fp );
 719
 720 //Save GameTime
 721         fwrite( &GameTime, sizeof(fix), 1, fp );
 722
 723 // If coop save, save all
 724 #ifdef NETWORK
 725    if (Game_mode & GM_MULTI_COOP)
 726          {
 727                 fwrite (&state_game_id,sizeof(int),1,fp);
 728                 fwrite (&Netgame,sizeof(netgame_info),1,fp);
 729                 fwrite (&NetPlayers,sizeof(AllNetPlayers_info),1,fp);
 730                 fwrite (&N_players,sizeof(int),1,fp);
 731                 fwrite (&Player_num,sizeof(int),1,fp);
 732                 for (i=0;i<N_players;i++)
 733                  fwrite (&Players[i],sizeof(player),1,fp);
 734
 735 #ifdef RISKY_PROPOSITION
 736            fwrite (&robot_controlled[0],4*MAX_ROBOTS_CONTROLLED,1,fp);
 737            fwrite (&robot_agitation[0],4*MAX_ROBOTS_CONTROLLED,1,fp);
 738            fwrite (&robot_controlled_time[0],4*MAX_ROBOTS_CONTROLLED,1,fp);
 739            fwrite (&robot_last_send_time[0],4*MAX_ROBOTS_CONTROLLED,1,fp);
 740            fwrite (&robot_last_message_time[0],4*MAX_ROBOTS_CONTROLLED,1,fp);
 741            fwrite (&robot_send_pending[0],4*MAX_ROBOTS_CONTROLLED,1,fp);
 742            fwrite (&robot_fired[0],4*MAX_ROBOTS_CONTROLLED,1,fp);
 743
 744       for (i=0;i<MAX_ROBOTS_CONTROLLED;i++)
 745                    fwrite (robot_fire_buf[i][0],18+3,1,fp);
 746 #endif
 747
 748          }
 749 #endif
 750
 751 //Save player info
 752         fwrite( &Players[Player_num], sizeof(player), 1, fp );
 753
 754 // Save the current weapon info
 755         fwrite( &Primary_weapon, sizeof(byte), 1, fp );
 756         fwrite( &Secondary_weapon, sizeof(byte), 1, fp );
 757
 758 // Save the difficulty level
 759         fwrite( &Difficulty_level, sizeof(int), 1, fp );
 760 // Save cheats enabled
 761         fwrite (&Cheats_enabled,sizeof(int),1,fp);
 762
 763         if ( !between_levels )  {
 764
 765         //Finish all morph objects
 766                 for (i=0; i<=Highest_object_index; i++ )        {
 767                         if ( (Objects[i].type != OBJ_NONE) && (Objects[i].render_type==RT_MORPH))       {
 768                                 morph_data *md;
 769                                 md = find_morph_data(&Objects[i]);
 770                                 if (md) {
 771                                         md->obj->control_type = md->morph_save_control_type;
 772                                         md->obj->movement_type = md->morph_save_movement_type;
 773                                         md->obj->render_type = RT_POLYOBJ;
 774                                         md->obj->mtype.phys_info = md->morph_save_phys_info;
 775                                         md->obj = NULL;
 776                                 } else {                                                //maybe loaded half-morphed from disk
 777                                         Objects[i].flags |= OF_SHOULD_BE_DEAD;
 778                                         Objects[i].render_type = RT_POLYOBJ;
 779                                         Objects[i].control_type = CT_NONE;
 780                                         Objects[i].movement_type = MT_NONE;
 781                                 }
 782                         }
 783                 }
 784
 785         //Save object info
 786                 i = Highest_object_index+1;
 787                 fwrite( &i, sizeof(int), 1, fp );
 788                 fwrite( Objects, sizeof(object)*i, 1, fp );
 789
 790         //Save wall info
 791                 i = Num_walls;
 792                 fwrite( &i, sizeof(int), 1, fp );
 793                 fwrite( Walls, sizeof(wall)*i, 1, fp );
 794
 795         //Save exploding wall info
 796                 i = MAX_EXPLODING_WALLS;
 797                 fwrite( &i, sizeof(int), 1, fp);
 798                 fwrite( expl_wall_list, sizeof(*expl_wall_list), i, fp );
 799
 800         //Save door info
 801                 i = Num_open_doors;
 802                 fwrite( &i, sizeof(int), 1, fp );
 803                 fwrite( ActiveDoors, sizeof(active_door)*i, 1, fp );
 804
 805         //Save cloaking wall info
 806                 i = Num_cloaking_walls;
 807                 fwrite( &i, sizeof(int), 1, fp );
 808                 fwrite( CloakingWalls, sizeof(cloaking_wall), i, fp );
 809
 810         //Save trigger info
 811                 fwrite( &Num_triggers, sizeof(int), 1, fp );
 812                 fwrite( Triggers, sizeof(trigger)*Num_triggers, 1, fp );
 813
 814         //Save tmap info
 815                 for (i=0; i<=Highest_segment_index; i++ )       {
 816                         for (j=0; j<6; j++ )    {
 817                                 fwrite( &Segments[i].sides[j].wall_num, sizeof(short), 1, fp );
 818                                 fwrite( &Segments[i].sides[j].tmap_num, sizeof(short), 1, fp );
 819                                 fwrite( &Segments[i].sides[j].tmap_num2, sizeof(short), 1, fp );
 820                         }
 821                 }
 822
 823         // Save the fuelcen info
 824                 fwrite( &Control_center_destroyed, sizeof(int), 1, fp );
 825                 fwrite( &Countdown_timer, sizeof(int), 1, fp );
 826                 fwrite( &Num_robot_centers, sizeof(int), 1, fp );
 827                 fwrite( RobotCenters, sizeof(matcen_info)*Num_robot_centers, 1, fp );
 828                 fwrite( &ControlCenterTriggers, sizeof(control_center_triggers), 1, fp );
 829                 fwrite( &Num_fuelcenters, sizeof(int), 1, fp );
 830                 fwrite( Station, sizeof(FuelCenter)*Num_fuelcenters, 1, fp );
 831
 832         // Save the control cen info
 833                 fwrite( &Control_center_been_hit, sizeof(int), 1, fp );
 834                 fwrite( &Control_center_player_been_seen, sizeof(int), 1, fp );
 835                 fwrite( &Control_center_next_fire_time, sizeof(int), 1, fp );
 836                 fwrite( &Control_center_present, sizeof(int), 1, fp );
 837                 fwrite( &Dead_controlcen_object_num, sizeof(int), 1, fp );
 838
 839         // Save the AI state
 840                 ai_save_state( fp );
 841
 842         // Save the automap visited info
 843                 fwrite( Automap_visited, sizeof(ubyte)*MAX_SEGMENTS, 1, fp );
 844
 845         }
 846         fwrite( &state_game_id, sizeof(uint), 1, fp );
 847         fwrite( &Laser_rapid_fire, sizeof(int), 1, fp );
 848         fwrite( &Lunacy, sizeof(int), 1, fp );          //      Yes, writing this twice.  Removed the Ugly robot system, but didn't want to change savegame format.
 849         fwrite( &Lunacy, sizeof(int), 1, fp );
 850
 851         // Save automap marker info
 852
 853         fwrite(MarkerObject,sizeof(MarkerObject),1,fp);
 854         fwrite(MarkerOwner,sizeof(MarkerOwner),1,fp);
 855         fwrite(MarkerMessage,sizeof(MarkerMessage),1,fp);
 856
 857         fwrite (&Afterburner_charge,sizeof(fix),1,fp);
 858
 859         //save last was super information
 860         fwrite(&Primary_last_was_super,sizeof(Primary_last_was_super),1,fp);
 861         fwrite(&Secondary_last_was_super,sizeof(Secondary_last_was_super),1,fp);
 862
 863         //      Save flash effect stuff
 864         fwrite( &Flash_effect, sizeof(int), 1, fp );
 865         fwrite( &Time_flash_last_played, sizeof(int), 1, fp );
 866         fwrite( &PaletteRedAdd, sizeof(int), 1, fp);
 867         fwrite( &PaletteGreenAdd, sizeof(int), 1, fp);
 868         fwrite( &PaletteBlueAdd, sizeof(int), 1, fp);
 869
 870         fwrite(Light_subtracted, sizeof(Light_subtracted[0]), MAX_SEGMENTS, fp);
 871
 872         fwrite(&First_secret_visit, sizeof(First_secret_visit), 1, fp);
 873
 874         fwrite(&Omega_charge, sizeof(Omega_charge), 1, fp);
 875
 876         if ( ferror(fp) ) {
 877                 if ( !(Game_mode & GM_MULTI) ) {
 878                         nm_messagebox(NULL, 1, TXT_OK, "Error writing savegame.\nPossibly out of disk\nspace.");
 879                         fclose(fp);
 880                         unlink(filename);
 881                 }
 882         } else  {
 883                 fclose(fp);
 884
 885                 #ifdef MACINTOSH                // set the type and creator of the saved game file
 886                 {
 887                         FInfo finfo;
 888                         OSErr err;
 889                         Str255 pfilename;
 890
 891                         strcpy(pfilename, filename);
 892                         c2pstr(pfilename);
 893                         err = HGetFInfo(0, 0, pfilename, &finfo);
 894                         finfo.fdType = 'SVGM';
 895                         finfo.fdCreator = 'DCT2';
 896                         err = HSetFInfo(0, 0, pfilename, &finfo);
 897                 }
 898                 #endif
 899         }
 900
 901         start_time();
 902
 903         return 1;
 904 }
 905
 906 //      -----------------------------------------------------------------------------------
 907 //      Set the player's position from the globals Secret_return_segment and Secret_return_orient.
 908 void set_pos_from_return_segment(void)
 909 {
 910         int     plobjnum = Players[Player_num].objnum;
 911
 912         compute_segment_center(&Objects[plobjnum].pos, &Segments[Secret_return_segment]);
 913         obj_relink(plobjnum, Secret_return_segment);
 914         reset_player_object();
 915         Objects[plobjnum].orient = Secret_return_orient;
 916 }
 917
 918 //      -----------------------------------------------------------------------------------
 919 int state_restore_all(int in_game, int secret_restore, char *filename_override)
 920 {
 921         char filename[128];
 922         int     filenum = -1;
 923
 924 #ifdef NETWORK
 925         if ( Game_mode & GM_MULTI )     {
 926 #ifdef MULTI_SAVE
 927                         multi_initiate_restore_game();
 928 #endif
 929                 return 0;
 930         }
 931 #endif
 932
 933         if (in_game && (Current_level_num < 0) && (secret_restore == 0)) {
 934                 HUD_init_message( "Can't restore in secret level!" );
 935                 return 0;
 936         }
 937
 938         if ( Newdemo_state == ND_STATE_RECORDING )
 939                 newdemo_stop_recording();
 940
 941         if ( Newdemo_state != ND_STATE_NORMAL )
 942                 return 0;
 943
 944         stop_time();
 945
 946         if (filename_override) {
 947                 strcpy(filename, filename_override);
 948                 filenum = NUM_SAVES+1;          //      So we don't trigger autosave
 949         } else if (!(filenum = state_get_restore_file(filename, 0)))    {
 950                 start_time();
 951                 return 0;
 952         }
 953
 954         //      MK, 1/1/96
 955         //      If not in multiplayer, do special secret level stuff.
 956         //      If Nsecret.sgc (where N = filenum) exists, then copy it to secret.sgc.
 957         //      If it doesn't exist, then delete secret.sgc
 958         if (!secret_restore && !(Game_mode & GM_MULTI)) {
 959                 int     rval;
 960                 char    temp_fname[32], fc;
 961
 962                 if (filenum != -1) {
 963                         if (filenum >= 10)
 964                                 fc = (filenum-10) + 'a';
 965                         else
 966                                 fc = '0' + filenum;
 967
 968                         #ifndef MACINTOSH
 969                         sprintf(temp_fname, "%csecret.sgc", fc);
 970                         #else
 971                         sprintf(temp_fname, ":Players:%csecret.sgc", fc);
 972                         #endif
 973
 974                         mprintf((0, "Trying to copy %s to secret.sgc.\n", temp_fname));
 975
 976                         if (file_exists(temp_fname)) {
 977                                 mprintf((0, "Copying %s to secret.sgc\n", temp_fname));
 978                                 rval = copy_file(temp_fname, SECRETC_FILENAME);
 979                                 Assert(rval == 0);      //      Oops, error copying temp_fname to secret.sgc!
 980                         } else
 981                                 unlink(SECRETC_FILENAME);
 982                 }
 983         }
 984
 985         //      Changed, 11/15/95, MK, don't to autosave if restoring from main menu.
 986         if ((filenum != (NUM_SAVES+1)) && in_game) {
 987                 char    temp_filename[128];
 988                 mprintf((0, "Doing autosave, filenum = %i, != %i!\n", filenum, NUM_SAVES+1));
 989                 #ifndef MACINTOSH
 990                 sprintf( temp_filename, "%s.sg%x", Players[Player_num].callsign, NUM_SAVES );
 991                 #else
 992                 sprintf( temp_filename, ":Players:%s.sg%x", Players[Player_num].callsign, NUM_SAVES );
 993                 #endif
 994                 state_save_all(!in_game, secret_restore, temp_filename);
 995         }
 996
 997         if ( !secret_restore && in_game ) {
 998                 int choice;
 999                 choice =  nm_messagebox( NULL, 2, "Yes", "No", "Restore Game?" );
1000                 if ( choice != 0 )      {
1001                         start_time();
1002                         return 0;
1003                 }
1004         }
1005
1006         start_time();
1007
1008         return state_restore_all_sub(filename, 0, secret_restore);
1009 }
1010
1011 extern void init_player_stats_new_ship(void);
1012
1013 void ShowLevelIntro(int level_num);
1014
1015 extern void do_cloak_invul_secret_stuff(fix old_gametime);
1016 extern void copy_defaults_to_robot(object *objp);
1017
1018 int state_restore_all_sub(char *filename, int multi, int secret_restore)
1019 {
1020         int ObjectStartLocation;
1021         int version,i, j, segnum;
1022         object * obj;
1023         FILE *fp;
1024         int current_level, next_level;
1025         int between_levels;
1026         char mission[16];
1027         char desc[DESC_LENGTH+1];
1028         char id[5];
1029         char org_callsign[CALLSIGN_LEN+16];
1030 #ifdef NETWORK
1031         int found;
1032         int nplayers;   //,playid[12],mynum;
1033         player restore_players[MAX_PLAYERS];
1034 #endif
1035         fix     old_gametime = GameTime;
1036
1037         #if defined(MACINTOSH) && !defined(NDEBUG)
1038         if ( strncmp(filename, ":Players:", 9) )
1039                 Int3();
1040         #endif
1041
1042         fp = fopen( filename, "rb" );
1043         if ( !fp ) return 0;
1044
1045 //Read id
1046         fread( id, sizeof(char)*4, 1, fp );
1047         if ( memcmp( id, dgss_id, 4 )) {
1048                 fclose(fp);
1049                 return 0;
1050         }
1051
1052 //Read version
1053         fread( &version, sizeof(int), 1, fp );
1054         if (version < STATE_COMPATIBLE_VERSION) {
1055                 fclose(fp);
1056                 return 0;
1057         }
1058
1059 // Read description
1060         fread( desc, sizeof(char)*DESC_LENGTH, 1, fp );
1061
1062 // Skip the current screen shot...
1063         fseek( fp, THUMBNAIL_W*THUMBNAIL_H, SEEK_CUR );
1064
1065 // And now...skip the goddamn palette stuff that somebody forgot to add
1066         fseek( fp, 768, SEEK_CUR );
1067
1068 // Read the Between levels flag...
1069         fread( &between_levels, sizeof(int), 1, fp );
1070
1071         Assert(between_levels == 0);    //between levels save ripped out
1072
1073 // Read the mission info...
1074         fread( mission, sizeof(char)*9, 1, fp );
1075         mprintf ((0,"Missionname to load = %s\n",mission));
1076
1077         if (!load_mission_by_name( mission ))   {
1078                 nm_messagebox( NULL, 1, "Ok", "Error!\nUnable to load mission\n'%s'\n", mission );
1079                 fclose(fp);
1080                 return 0;
1081         }
1082
1083 //Read level info
1084         fread( &current_level, sizeof(int), 1, fp );
1085         fread( &next_level, sizeof(int), 1, fp );
1086
1087 //Restore GameTime
1088         fread( &GameTime, sizeof(fix), 1, fp );
1089
1090 // Start new game....
1091         if (!multi)     {
1092                 Game_mode = GM_NORMAL;
1093                 Function_mode = FMODE_GAME;
1094 #ifdef NETWORK
1095                 change_playernum_to(0);
1096 #endif
1097                 strcpy( org_callsign, Players[0].callsign );
1098                 N_players = 1;
1099                 if (!secret_restore) {
1100                         InitPlayerObject();                             //make sure player's object set up
1101                         init_player_stats_game();               //clear all stats
1102                 }
1103         } else {
1104                 strcpy( org_callsign, Players[Player_num].callsign );
1105         }
1106
1107 #ifdef NETWORK
1108    if (Game_mode & GM_MULTI)
1109          {
1110                 fread (&state_game_id,sizeof(int),1,fp);
1111                 fread (&Netgame,sizeof(netgame_info),1,fp);
1112                 fread (&NetPlayers,sizeof(AllNetPlayers_info),1,fp);
1113                 fread (&nplayers,sizeof(N_players),1,fp);
1114                 fread (&Player_num,sizeof(Player_num),1,fp);
1115                 for (i=0;i<nplayers;i++)
1116                  fread (&restore_players[i],sizeof(player),1,fp);
1117 #ifdef RISKY_PROPOSITION
1118            fread (&robot_controlled[0],4*MAX_ROBOTS_CONTROLLED,1,fp);
1119            fread (&robot_agitation[0],4*MAX_ROBOTS_CONTROLLED,1,fp);
1120            fread (&robot_controlled_time[0],4*MAX_ROBOTS_CONTROLLED,1,fp);
1121            fread (&robot_last_send_time[0],4*MAX_ROBOTS_CONTROLLED,1,fp);
1122            fread (&robot_last_message_time[0],4*MAX_ROBOTS_CONTROLLED,1,fp);
1123            fread (&robot_send_pending[0],4*MAX_ROBOTS_CONTROLLED,1,fp);
1124            fread (&robot_fired[0],4*MAX_ROBOTS_CONTROLLED,1,fp);
1125
1126       for (i=0;i<MAX_ROBOTS_CONTROLLED;i++)
1127                    fread (&robot_fire_buf[i][0],21,1,fp);
1128 #endif
1129
1130            for (i=0;i<nplayers;i++)
1131                  {
1132                   found=0;
1133                   for (j=0;j<nplayers;j++)
1134                          {
1135            if ((!strcmp (restore_players[i].callsign,Players[j].callsign)) && Players[j].connected==1)
1136                                  found=1;
1137                          }
1138                   restore_players[i].connected=found;
1139             }
1140                 memcpy (&Players,&restore_players,sizeof(player)*nplayers);
1141                 N_players=nplayers;
1142
1143       if (network_i_am_master())
1144                  {
1145                   for (i=0;i<N_players;i++)
1146                         {
1147                          if (i==Player_num)
1148                                 continue;
1149                  Players[i].connected=0;
1150                         }
1151                  }
1152
1153                 //Viewer = ConsoleObject = &Objects[Players[Player_num].objnum];
1154          }
1155
1156 #endif
1157
1158 //Read player info
1159
1160         {
1161                 StartNewLevelSub(current_level, 1, secret_restore);
1162
1163                 if (secret_restore) {
1164                         player  dummy_player;
1165
1166                         fread( &dummy_player, sizeof(player), 1, fp );
1167                         if (secret_restore == 1) {              //      This means he didn't die, so he keeps what he got in the secret level.
1168                                 Players[Player_num].level = dummy_player.level;
1169                                 Players[Player_num].last_score = dummy_player.last_score;
1170                                 Players[Player_num].time_level = dummy_player.time_level;
1171
1172                                 Players[Player_num].num_robots_level = dummy_player.num_robots_level;
1173                                 Players[Player_num].num_robots_total = dummy_player.num_robots_total;
1174                                 Players[Player_num].hostages_rescued_total = dummy_player.hostages_rescued_total;
1175                                 Players[Player_num].hostages_total = dummy_player.hostages_total;
1176                                 Players[Player_num].hostages_on_board = dummy_player.hostages_on_board;
1177                                 Players[Player_num].hostages_level = dummy_player.hostages_level;
1178                                 Players[Player_num].homing_object_dist = dummy_player.homing_object_dist;
1179                                 Players[Player_num].hours_level = dummy_player.hours_level;
1180                                 Players[Player_num].hours_total = dummy_player.hours_total;
1181                                 do_cloak_invul_secret_stuff(old_gametime);
1182                         } else {
1183                                 Players[Player_num] = dummy_player;
1184                         }
1185                 } else {
1186                         fread( &Players[Player_num], sizeof(player), 1, fp );
1187                 }
1188         }
1189         strcpy( Players[Player_num].callsign, org_callsign );
1190
1191 // Set the right level
1192         if ( between_levels )
1193                 Players[Player_num].level = next_level;
1194
1195 // Restore the weapon states
1196         fread( &Primary_weapon, sizeof(byte), 1, fp );
1197         fread( &Secondary_weapon, sizeof(byte), 1, fp );
1198
1199         select_weapon(Primary_weapon, 0, 0, 0);
1200         select_weapon(Secondary_weapon, 1, 0, 0);
1201
1202 // Restore the difficulty level
1203         fread( &Difficulty_level, sizeof(int), 1, fp );
1204
1205 // Restore the cheats enabled flag
1206
1207    fread (&Cheats_enabled,sizeof(int),1,fp);
1208
1209         if ( !between_levels )  {
1210                 Do_appearance_effect = 0;                       // Don't do this for middle o' game stuff.
1211
1212                 ObjectStartLocation = ftell( fp );
1213                 //Clear out all the objects from the lvl file
1214                 for (segnum=0; segnum <= Highest_segment_index; segnum++)
1215                         Segments[segnum].objects = -1;
1216                 reset_objects(1);
1217
1218                 //Read objects, and pop 'em into their respective segments.
1219                 fread( &i, sizeof(int), 1, fp );
1220                 Highest_object_index = i-1;
1221                 fread( Objects, sizeof(object)*i, 1, fp );
1222
1223                 Object_next_signature = 0;
1224                 for (i=0; i<=Highest_object_index; i++ )        {
1225                         obj = &Objects[i];
1226                         obj->rtype.pobj_info.alt_textures = -1;
1227                         segnum = obj->segnum;
1228                         obj->next = obj->prev = obj->segnum = -1;
1229                         if ( obj->type != OBJ_NONE )    {
1230                                 obj_link(i,segnum);
1231                                 if ( obj->signature > Object_next_signature )
1232                                         Object_next_signature = obj->signature;
1233                         }
1234
1235                         //look for, and fix, boss with bogus shields
1236                         if (obj->type == OBJ_ROBOT && Robot_info[obj->id].boss_flag) {
1237                                 fix save_shields = obj->shields;
1238
1239                                 copy_defaults_to_robot(obj);            //calculate starting shields
1240
1241                                 //if in valid range, use loaded shield value
1242                                 if (save_shields > 0 && save_shields <= obj->shields)
1243                                         obj->shields = save_shields;
1244                                 else
1245                                         obj->shields /= 2;  //give player a break
1246                         }
1247
1248                 }
1249                 special_reset_objects();
1250                 Object_next_signature++;
1251
1252                 //      1 = Didn't die on secret level.
1253                 //      2 = Died on secret level.
1254                 if (secret_restore && (Current_level_num >= 0)) {
1255                         set_pos_from_return_segment();
1256                         if (secret_restore == 2)
1257                                 init_player_stats_new_ship();
1258                 }
1259
1260                 //Restore wall info
1261                 fread( &i, sizeof(int), 1, fp );
1262                 Num_walls = i;
1263                 fread( Walls, sizeof(wall)*Num_walls, 1, fp );
1264
1265                 //now that we have the walls, check if any sounds are linked to
1266                 //walls that are now open
1267                 for (i=0;i<Num_walls;i++) {
1268                         if (Walls[i].type == WALL_OPEN)
1269                                 digi_kill_sound_linked_to_segment(Walls[i].segnum,Walls[i].sidenum,-1); //-1 means kill any sound
1270                 }
1271
1272                 //Restore exploding wall info
1273                 if (version >= 10) {
1274                         fread( &i, sizeof(int), 1, fp );
1275                         fread( expl_wall_list, sizeof(*expl_wall_list), i, fp );
1276                 }
1277
1278                 //Restore door info
1279                 fread( &i, sizeof(int), 1, fp );
1280                 Num_open_doors = i;
1281                 fread( ActiveDoors, sizeof(active_door)*Num_open_doors, 1, fp );
1282
1283                 if (version >= 14) {            //Restore cloaking wall info
1284                         fread( &i, sizeof(int), 1, fp );
1285                         Num_cloaking_walls = i;
1286                         fread( CloakingWalls, sizeof(cloaking_wall), Num_cloaking_walls, fp );
1287                 }
1288
1289                 //Restore trigger info
1290                 fread( &Num_triggers, sizeof(int), 1, fp );
1291                 fread( Triggers, sizeof(trigger)*Num_triggers, 1, fp );
1292
1293                 //Restore tmap info
1294                 for (i=0; i<=Highest_segment_index; i++ )       {
1295                         for (j=0; j<6; j++ )    {
1296                                 fread( &Segments[i].sides[j].wall_num, sizeof(short), 1, fp );
1297                                 fread( &Segments[i].sides[j].tmap_num, sizeof(short), 1, fp );
1298                                 fread( &Segments[i].sides[j].tmap_num2, sizeof(short), 1, fp );
1299                         }
1300                 }
1301
1302                 //Restore the fuelcen info
1303                 fread( &Control_center_destroyed, sizeof(int), 1, fp );
1304                 fread( &Countdown_timer, sizeof(int), 1, fp );
1305                 fread( &Num_robot_centers, sizeof(int), 1, fp );
1306                 fread( RobotCenters, sizeof(matcen_info)*Num_robot_centers, 1, fp );
1307                 fread( &ControlCenterTriggers, sizeof(control_center_triggers), 1, fp );
1308                 fread( &Num_fuelcenters, sizeof(int), 1, fp );
1309                 fread( Station, sizeof(FuelCenter)*Num_fuelcenters, 1, fp );
1310
1311                 // Restore the control cen info
1312                 fread( &Control_center_been_hit, sizeof(int), 1, fp );
1313                 fread( &Control_center_player_been_seen, sizeof(int), 1, fp );
1314                 fread( &Control_center_next_fire_time, sizeof(int), 1, fp );
1315                 fread( &Control_center_present, sizeof(int), 1, fp );
1316                 fread( &Dead_controlcen_object_num, sizeof(int), 1, fp );
1317
1318                 // Restore the AI state
1319                 ai_restore_state( fp, version );
1320
1321                 // Restore the automap visited info
1322                 fread( Automap_visited, sizeof(ubyte)*MAX_SEGMENTS, 1, fp );
1323
1324                 //      Restore hacked up weapon system stuff.
1325                 Fusion_next_sound_time = GameTime;
1326                 Auto_fire_fusion_cannon_time = 0;
1327                 Next_laser_fire_time = GameTime;
1328                 Next_missile_fire_time = GameTime;
1329                 Last_laser_fired_time = GameTime;
1330
1331         }
1332         state_game_id = 0;
1333
1334         if ( version >= 7 )     {
1335                 fread( &state_game_id, sizeof(uint), 1, fp );
1336                 fread( &Laser_rapid_fire, sizeof(int), 1, fp );
1337                 fread( &Lunacy, sizeof(int), 1, fp );           //      Yes, writing this twice.  Removed the Ugly robot system, but didn't want to change savegame format.
1338                 fread( &Lunacy, sizeof(int), 1, fp );
1339                 if ( Lunacy )
1340                         do_lunacy_on();
1341         }
1342
1343         if (version >= 17) {
1344                 fread(MarkerObject,sizeof(MarkerObject),1,fp);
1345                 fread(MarkerOwner,sizeof(MarkerOwner),1,fp);
1346                 fread(MarkerMessage,sizeof(MarkerMessage),1,fp);
1347         }
1348         else {
1349                 int num,dummy;
1350
1351                 // skip dummy info
1352
1353                 fread (&num,sizeof(int),1,fp);                  //was NumOfMarkers
1354                 fread (&dummy,sizeof(int),1,fp);                        //was CurMarker
1355
1356                 fseek( fp, num * (sizeof(vms_vector) + 40), SEEK_CUR );
1357
1358                 for (num=0;num<NUM_MARKERS;num++)
1359                         MarkerObject[num] = -1;
1360         }
1361
1362         if (version>=11) {
1363                 if (secret_restore != 1)
1364                         fread (&Afterburner_charge,sizeof(fix),1,fp);
1365                 else {
1366                         fix     dummy_fix;
1367                         fread (&dummy_fix,sizeof(fix),1,fp);
1368                 }
1369         }
1370         if (version>=12) {
1371                 //read last was super information
1372                 fread(&Primary_last_was_super,sizeof(Primary_last_was_super),1,fp);
1373                 fread(&Secondary_last_was_super,sizeof(Secondary_last_was_super),1,fp);
1374         }
1375
1376         if (version >= 12) {
1377                 fread( &Flash_effect, sizeof(int), 1, fp );
1378                 fread( &Time_flash_last_played, sizeof(int), 1, fp );
1379                 fread( &PaletteRedAdd, sizeof(int), 1, fp);
1380                 fread( &PaletteGreenAdd, sizeof(int), 1, fp);
1381                 fread( &PaletteBlueAdd, sizeof(int), 1, fp);
1382         } else {
1383                 Flash_effect = 0;
1384                 Time_flash_last_played = 0;
1385                 PaletteRedAdd = 0;
1386                 PaletteGreenAdd = 0;
1387                 PaletteBlueAdd = 0;
1388         }
1389
1390         //      Load Light_subtracted
1391         if (version >= 16) {
1392                 fread(Light_subtracted, sizeof(Light_subtracted[0]), MAX_SEGMENTS, fp);
1393                 apply_all_changed_light();
1394                 compute_all_static_light();     //      set static_light field in segment struct.  See note at that function.
1395         } else {
1396                 int     i;
1397                 for (i=0; i<=Highest_segment_index; i++)
1398                         Light_subtracted[i] = 0;
1399         }
1400
1401         if (!secret_restore) {
1402                 if (version >= 20) {
1403                         fread(&First_secret_visit, sizeof(First_secret_visit), 1, fp);
1404                         mprintf((0, "File: [%s] Read First_secret_visit: New value = %i\n", filename, First_secret_visit));
1405                 } else
1406                         First_secret_visit = 1;
1407         } else
1408                 First_secret_visit = 0;
1409
1410         if (version >= 22)
1411         {
1412                 if (secret_restore != 1)
1413                         fread (&Omega_charge,sizeof(fix),1,fp);
1414                 else {
1415                         fix     dummy_fix;
1416                         fread (&dummy_fix,sizeof(fix),1,fp);
1417                 }
1418         }
1419
1420         fclose(fp);
1421
1422 #ifdef NETWORK
1423    if (Game_mode & GM_MULTI)   // Get rid of ships that aren't
1424          {                                                                       // connected in the restored game
1425                 for (i=0;i<nplayers;i++)
1426                  {
1427                   mprintf ((0,"Testing %s = %d\n",Players[i].callsign,Players[i].connected));
1428                   if (Players[i].connected!=1)
1429                    {
1430                     network_disconnect_player (i);
1431                create_player_appearance_effect(&Objects[Players[i].objnum]);
1432                          mprintf ((0,"Killing player ship %s!\n",Players[i].callsign));
1433               }
1434                  }
1435
1436          }
1437 #endif
1438
1439 // Load in bitmaps, etc..
1440 //!!    piggy_load_level_data();        //already done by StartNewLevelSub()
1441
1442         return 1;
1443 }
1444
1445 //      When loading a saved game, segp->static_light is bogus.
1446 //      This is because apply_all_changed_light, which is supposed to properly update this value,
1447 //      cannot do so because it needs the original light cast from a light which is no longer there.
1448 //      That is, a light has been blown out, so the texture remaining casts 0 light, but the static light
1449 //      which is present in the static_light field contains the light cast from that light.
1450 void compute_all_static_light(void)
1451 {
1452         int     i, j, k;
1453
1454         for (i=0; i<=Highest_segment_index; i++) {
1455                 fix     total_light;
1456                 segment *segp;
1457
1458                 segp = &Segments[i];
1459                 total_light = 0;
1460
1461                 for (j=0; j<MAX_SIDES_PER_SEGMENT; j++) {
1462                         side    *sidep;
1463
1464                         sidep = &segp->sides[j];
1465
1466                         for (k=0; k<4; k++)
1467                                 total_light += sidep->uvls[k].l;
1468                 }
1469
1470                 Segment2s[i].static_light = total_light/(MAX_SIDES_PER_SEGMENT*4);
1471         }
1472
1473 }
1474
1475
1476 int state_get_game_id(char *filename)
1477 {
1478         int version;
1479         FILE *fp;
1480         int between_levels;
1481         char mission[16];
1482         char desc[DESC_LENGTH+1];
1483         char id[5];
1484         int dumbint;
1485
1486 mprintf((0, "Restoring multigame from [%s]\n", filename));
1487
1488         fp = fopen( filename, "rb" );
1489         if ( !fp ) return 0;
1490
1491 //Read id
1492         fread( id, sizeof(char)*4, 1, fp );
1493         if ( memcmp( id, dgss_id, 4 )) {
1494                 fclose(fp);
1495                 return 0;
1496         }
1497
1498 //Read version
1499         fread( &version, sizeof(int), 1, fp );
1500         if (version < STATE_COMPATIBLE_VERSION) {
1501                 fclose(fp);
1502                 return 0;
1503         }
1504
1505 // Read description
1506         fread( desc, sizeof(char)*DESC_LENGTH, 1, fp );
1507
1508 // Skip the current screen shot...
1509         fseek( fp, THUMBNAIL_W*THUMBNAIL_H, SEEK_CUR );
1510
1511 // And now...skip the palette stuff that somebody forgot to add
1512         fseek( fp, 768, SEEK_CUR );
1513
1514 // Read the Between levels flag...
1515         fread( &between_levels, sizeof(int), 1, fp );
1516
1517         Assert(between_levels == 0);    //between levels save ripped out
1518
1519 // Read the mission info...
1520         fread( mission, sizeof(char)*9, 1, fp );
1521 //Read level info
1522         fread( &dumbint, sizeof(int), 1, fp );
1523         fread( &dumbint, sizeof(int), 1, fp );
1524
1525 //Restore GameTime
1526         fread( &dumbint, sizeof(fix), 1, fp );
1527
1528         fread (&state_game_id,sizeof(int),1,fp);
1529
1530         return (state_game_id);
1531  }
1532
1533 #if defined(POLY_ACC)
1534 //void screen_shot_pa(ubyte *dst,ushort *src)
1535 //{
1536 //    //ushort *src = pa_get_buffer_address(0),
1537 //    ushort *s;
1538 //    fix u, v, du, dv;
1539 //    int ui, w, h;
1540 //
1541 //    pa_flush();
1542 //
1543 //    du = (640.0 / (float)THUMBNAIL_W) * 65536.0;
1544 //    dv = (480.0 / (float)THUMBNAIL_H) * 65536.0;
1545 //
1546 //    for(v = h = 0; h != THUMBNAIL_H; ++h)
1547 //    {
1548 //        s = src + f2i(v) * 640;
1549 //        v += dv;
1550 //        for(u = w = 0; w != THUMBNAIL_W; ++w)
1551 //        {
1552 //            ui = f2i(u);
1553 //            *dst++ = gr_find_closest_color((s[ui] >> 9) & 0x3e, (s[ui] >> 4) & 0x3e, (s[ui] << 1) & 0x3e);
1554 //            u += du;
1555 //        }
1556 //    }
1557 //}
1558
1559 void screen_shot_pa(grs_canvas *dcanv,grs_canvas *scanv)
1560 {
1561 #if !defined(MACINTOSH)
1562         ubyte *dst;
1563         ushort *src;
1564         int x,y;
1565
1566         Assert(scanv->cv_w == dcanv->cv_w && scanv->cv_h == dcanv->cv_h);
1567
1568         pa_flush();
1569
1570         src = (ushort *) scanv->cv_bitmap.bm_data;
1571         dst = dcanv->cv_bitmap.bm_data;
1572
1573         #ifdef PA_3DFX_VOODOO
1574    src=(ushort *)pa_set_back_to_read();
1575         #endif
1576
1577         for (y=0; y<scanv->cv_h; y++) {
1578                 for (x=0; x<scanv->cv_w; x++) {
1579                         #ifdef PA_3DFX_VOODOO
1580                         *dst++ = gr_find_closest_color((*src >> 10) & 0x3e, (*src >> 5) & 0x3f, (*src << 1) & 0x3e);
1581                         #else
1582                         *dst++ = gr_find_closest_color((*src >> 9) & 0x3e, (*src >> 4) & 0x3e, (*src << 1) & 0x3e);
1583                         #endif
1584
1585                         src++;
1586                 }
1587                 src = (ushort *) (((ubyte *) src) + (scanv->cv_bitmap.bm_rowsize - (scanv->cv_bitmap.bm_w*PA_BPP)));
1588                 dst += dcanv->cv_bitmap.bm_rowsize - dcanv->cv_bitmap.bm_w;
1589         }
1590         #ifdef PA_3DFX_VOODOO
1591         pa_set_front_to_read();
1592         #endif
1593 #endif
1594 }
1595 #endif
1596