main/game.c

   1 /* $Id: game.c,v 1.26 2004-05-20 01:29:14 btb Exp $ */
   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 /*
  16  *
  17  * Game loop for Inferno
  18  *
  19  * Old Log:
  20  * Revision 1.1  1995/12/05  16:01:09  allender
  21  * Initial revision
  22  *
  23  * Revision 1.38  1995/11/13  13:02:35  allender
  24  * put up HUD message when player starts tournament
  25  *
  26  * Revision 1.37  1995/11/13  09:21:05  allender
  27  * ved and shorted tournament mode messages
  28  *
  29  * Revision 1.36  1995/11/09  17:27:00  allender
  30  * took out cheats during demo playback
  31  *
  32  * Revision 1.35  1995/11/07  17:05:41  allender
  33  * move registered cheats
  34  *
  35  * Revision 1.34  1995/11/03  12:55:45  allender
  36  * shareware changes
  37  *
  38  * Revision 1.33  1995/10/29  20:15:00  allender
  39  * took out frame rate cheat.  Pause for at least a second because
  40  * of cmd-P problem
  41  *
  42  * Revision 1.32  1995/10/26  14:11:26  allender
  43  * fix up message box stuff to align correctly
  44  *
  45  * Revision 1.31  1995/10/24  18:09:41  allender
  46  * ixed cockpit weirdness -- don't update cockpit when do_appl_quit
  47  * is called -- screen saved in mevent.c
  48  *
  49  * Revision 1.30  1995/10/21  23:39:10  allender
  50  * ruise marking indicator
  51  *
  52  * Revision 1.29  1995/10/21  22:52:27  allender
  53  * bald guy cheat -- print screen stuff
  54  *
  55  * Revision 1.28  1995/10/20  00:54:28  allender
  56  * new help menus and redbook checking in outer game loop
  57  *
  58  * Revision 1.27  1995/10/17  15:34:19  allender
  59  * pixel double is now default mode
  60  *
  61  * Revision 1.26  1995/10/12  17:34:44  allender
  62  * bigger message box -- command key equivs for function keys
  63  *
  64  * Revision 1.25  1995/10/11  12:17:14  allender
  65  * removed event loop processing
  66  *
  67  * Revision 1.24  1995/10/11  00:58:47  allender
  68  * removed debugging code
  69  *
  70  * Revision 1.23  1995/10/10  11:50:32  allender
  71  * fixed boxed message to align on 8 byte boundry,
  72  * and some debug code
  73  *
  74  * Revision 1.22  1995/09/24  10:51:26  allender
  75  * cannot go to finder in network..added cmd-q for quit
  76  *
  77  * Revision 1.21  1995/09/22  15:05:18  allender
  78  * *more* hud and font type stuff (messages)
  79  *
  80  * Revision 1.20  1995/09/22  14:39:57  allender
  81  * ved framerate counter up
  82  *
  83  * Revision 1.19  1995/09/18  17:01:28  allender
  84  * start of compatibility stuff
  85  *
  86  * Revision 1.18  1995/09/15  15:53:13  allender
  87  * better handling of PICT screen shots
  88  *
  89  * Revision 1.17  1995/09/14  15:27:41  allender
  90  * fixed function type on message_box routiens
  91  *
  92  * Revision 1.16  1995/09/13  11:37:47  allender
  93  * put in call to dump PICT file instead of PCX
  94  *
  95  * Revision 1.15  1995/09/08  17:13:28  allender
  96  * put back in ibitblt.h and start of PICT picture dump
  97  *
  98  * Revision 1.14  1995/09/07  10:20:58  allender
  99  * make cockpit mode default
 100  *
 101  * Revision 1.13  1995/09/07  10:17:34  allender
 102  * added command key equivalents for function keys
 103  *
 104  * Revision 1.12  1995/09/04  11:36:47  allender
 105  * fixed pixel double mode to have correct number of rendered
 106  * lines
 107  *
 108  * Revision 1.11  1995/09/01  15:47:07  allender
 109  * cap frame rate at 60 fps
 110  *
 111  * Revision 1.10  1995/08/26  16:25:59  allender
 112  * whole buncha' stuff!!!!
 113  *
 114  * Revision 1.9  1995/08/01  16:04:47  allender
 115  * put in ctrl_esc sequence to go to menubar
 116  *
 117  * Revision 1.8  1995/07/28  14:15:11  allender
 118  * added FRAME cheat to display frame rate
 119  *
 120  * Revision 1.7  1995/07/17  08:54:19  allender
 121  * *** empty log message ***
 122  *
 123  * Revision 1.6  1995/07/12  12:54:06  allender
 124  * removed some debug keys
 125  *
 126  * Revision 1.5  1995/07/05  16:44:35  allender
 127  * changed some debug keys
 128  *
 129  * Revision 1.4  1995/06/23  10:24:57  allender
 130  * added scanline doubling routine
 131  *
 132  * Revision 1.3  1995/06/13  13:08:26  allender
 133  * added special debug key to move window into upper left corner.
 134  * also added debug key to put game in 640x480 mode
 135  *
 136  * Revision 1.2  1995/06/12  11:10:31  allender
 137  * added DEL_SHIFT_M to move window to corner of screen
 138  *
 139  * Revision 1.1  1995/05/16  15:25:08  allender
 140  * Initial revision
 141  *
 142  * Revision 2.36  1996/01/05  16:52:05  john
 143  * Improved 3d stuff.
 144  *
 145  * Revision 2.35  1995/10/09  22:17:10  john
 146  * Took out the page flipping in set_screen_mode, which shouldn't
 147  * be there.  This was hosing the modex stuff.
 148  *
 149  * Revision 2.34  1995/10/09  19:46:34  john
 150  * Fixed bug with modex paging with lcdbios.
 151  *
 152  * Revision 2.33  1995/10/08  11:46:09  john
 153  * Fixed bug with 2d offset in interlaced mode in low res.
 154  * Made LCDBIOS with pageflipping using VESA set start
 155  * Address function.  X=CRTC offset, Y=0.
 156  *
 157  * Revision 2.32  1995/10/07  13:20:51  john
 158  * Added new modes for LCDBIOS, also added support for -JoyNice,
 159  * and added Shift+F1-F4 to controls various stereoscopic params.
 160  *
 161  * Revision 2.31  1995/05/31  14:34:43  unknown
 162  * fixed warnings.
 163  *
 164  * Revision 2.30  1995/05/08  11:23:45  john
 165  * Made 3dmax work like Kasan wants it to.
 166  *
 167  * Revision 2.29  1995/04/06  13:47:39  yuan
 168  * Restored rear view to original.
 169  *
 170  * Revision 2.28  1995/04/06  12:13:07  john
 171  * Fixed some bugs with 3dmax.
 172  *
 173  * Revision 2.27  1995/04/05  13:18:18  mike
 174  * decrease energy usage on fusion cannon
 175  *
 176  * Revision 2.26  1995/03/30  16:36:32  mike
 177  * text localization.
 178  *
 179  * Revision 2.25  1995/03/27  16:45:26  john
 180  * Fixed some cheat bugs.  Added astral cheat.
 181  *
 182  * Revision 2.24  1995/03/27  15:37:11  mike
 183  * boost fusion cannon for non-multiplayer modes.
 184  *
 185  * Revision 2.23  1995/03/24  17:48:04  john
 186  * Fixed bug with menus and 320x100.
 187  *
 188  * Revision 2.22  1995/03/24  15:34:02  mike
 189  * cheats.
 190  *
 191  * Revision 2.21  1995/03/24  13:11:39  john
 192  * Added save game during briefing screens.
 193  *
 194  * Revision 2.20  1995/03/21  14:40:50  john
 195  * Ifdef'd out the NETWORK code.
 196  *
 197  * Revision 2.19  1995/03/16  22:07:16  john
 198  * Made so only for screen can be used for anything other
 199  * than mode 13.
 200  *
 201  * Revision 2.18  1995/03/16  21:45:35  john
 202  * Made all paged modes have incompatible menus!
 203  *
 204  * Revision 2.17  1995/03/16  18:30:35  john
 205  * Made wider than 320 screens not have
 206  * a status bar mode.
 207  *
 208  * Revision 2.16  1995/03/16  10:53:34  john
 209  * Move VFX center to Shift+Z instead of Enter because
 210  * it conflicted with toggling HUD on/off.
 211  *
 212  * Revision 2.15  1995/03/16  10:18:33  john
 213  * Fixed bug with VFX mode not working. also made warning
 214  * when it can't set VESA mode.
 215  *
 216  * Revision 2.14  1995/03/14  16:22:39  john
 217  * Added cdrom alternate directory stuff.
 218  *
 219  * Revision 2.13  1995/03/14  12:14:17  john
 220  * Made VR helmets have 4 resolutions to choose from.
 221  *
 222  * Revision 2.12  1995/03/10  13:47:33  john
 223  * Added head tracking sensitivity.
 224  *
 225  * Revision 2.11  1995/03/10  13:13:47  john
 226  * Added code to show T-xx on iglasses.
 227  *
 228  * Revision 2.10  1995/03/09  18:07:29  john
 229  * Fixed bug with iglasses tracking not "centering" right.
 230  * Made VFX have bright headlight lighting.
 231  *
 232  * Revision 2.9  1995/03/09  11:48:02  john
 233  * Added HUD for VR helmets.
 234  *
 235  * Revision 2.8  1995/03/07  15:12:53  john
 236  * Fixed VFX,3dmax support.
 237  *
 238  * Revision 2.7  1995/03/07  11:35:03  john
 239  * Fixed bug with cockpit in rear view.
 240  *
 241  * Revision 2.6  1995/03/06  18:40:17  john
 242  * Added some ifdef EDITOR stuff.
 243  *
 244  * Revision 2.5  1995/03/06  18:31:21  john
 245  * Fixed bug with nmenu popping up on editor screen.
 246  *
 247  * Revision 2.4  1995/03/06  17:28:33  john
 248  * Fixed but with cockpit toggling wrong.
 249  *
 250  * Revision 2.3  1995/03/06  16:08:10  mike
 251  * Fix compile errors if building without editor.
 252  *
 253  * Revision 2.2  1995/03/06  15:24:10  john
 254  * New screen techniques.
 255  *
 256  * Revision 2.1  1995/02/27  13:41:03  john
 257  * Removed floating point from frame rate calculations.
 258  *
 259  * Revision 2.0  1995/02/27  11:31:54  john
 260  * New version 2.0, which has no anonymous unions, builds with
 261  * Watcom 10.0, and doesn't require parsing BITMAPS.TBL.
 262  *
 263  * Revision 1.770  1995/02/22  12:45:15  allender
 264  * remove anonymous unions from object structure
 265  *
 266  * Revision 1.769  1995/02/15  10:06:25  allender
 267  * make pause pause game during demo playback
 268  *
 269  * Revision 1.768  1995/02/13  20:35:11  john
 270  * Lintized
 271  *
 272  * Revision 1.767  1995/02/13  19:40:29  allender
 273  * added place to demo record restoration from rear view in place that
 274  * I forgot before
 275  *
 276  * Revision 1.766  1995/02/13  10:29:27  john
 277  * Fixed bug with cheats not restoreing across save games.
 278  *
 279  * Revision 1.765  1995/02/11  22:54:33  john
 280  * Made loading for pig not show up for demos.
 281  *
 282  * Revision 1.764  1995/02/11  17:30:08  allender
 283  * ifndef NDEBUG around strip frame stuff
 284  *
 285  * Revision 1.763  1995/02/11  17:13:01  rob
 286  * Took out modem.c code fille stuff.
 287  *
 288  * Revision 1.762  1995/02/11  16:36:47  allender
 289  * debug key to strip frames from end of demo
 290  *
 291  * Revision 1.761  1995/02/11  14:29:16  john
 292  * Turned off cheats when going into game.
 293  *
 294  * Revision 1.760  1995/02/11  13:46:54  mike
 295  * fix cheats.
 296  *
 297  * Revision 1.759  1995/02/11  12:36:09  matt
 298  * Cleaned up cheats
 299  *
 300  * Revision 1.758  1995/02/11  12:27:04  mike
 301  * fix path-to-exit cheat.
 302  *
 303  * Revision 1.757  1995/02/11  01:56:24  mike
 304  * robots don't fire cheat.
 305  *
 306  * Revision 1.756  1995/02/10  16:38:40  mike
 307  * illuminate path to exit cheat.
 308  *
 309  * Revision 1.755  1995/02/10  16:19:40  mike
 310  * new show-path-to-exit system, still buggy, compiled out.
 311  *
 312  * Revision 1.754  1995/02/10  15:54:46  matt
 313  * Added new cheats
 314  *
 315  * Revision 1.753  1995/02/09  12:25:42  matt
 316  * Made mem_fill() test routines not be called if RELEASE
 317  *
 318  * Revision 1.752  1995/02/09  08:49:32  mike
 319  * change fill opcode value to 0xcc, int 3 value.
 320  *
 321  *
 322  * Revision 1.751  1995/02/09  02:59:26  mike
 323  * check code for 00066xxx bugs.
 324  *
 325  * Revision 1.750  1995/02/08  17:10:02  mike
 326  * add, but don't call, debug code.
 327  *
 328  * Revision 1.749  1995/02/07  11:07:27  john
 329  * Added hooks for confirm on game state restore.
 330  *
 331  * Revision 1.748  1995/02/06  15:52:45  mike
 332  * add mini megawow powerup for giving reasonable weapons.
 333  *
 334  * Revision 1.747  1995/02/06  12:53:35  allender
 335  * force endlevel_sequence to 0 to fix weird bug
 336  *
 337  * Revision 1.746  1995/02/04  10:03:30  mike
 338  * Fly to exit cheat.
 339  *
 340  * Revision 1.745  1995/02/02  15:57:52  john
 341  * Added turbo mode cheat.
 342  *
 343  * Revision 1.744  1995/02/02  14:43:39  john
 344  * Uppped frametime limit to 150 Hz.
 345  *
 346  * Revision 1.743  1995/02/02  13:37:16  mike
 347  * move T-?? message down in certain modes.
 348  *
 349  * Revision 1.742  1995/02/02  01:26:59  john
 350  * Took out no key repeating.
 351  *
 352  * Revision 1.741  1995/01/29  21:36:44  mike
 353  * make fusion cannon not make pitching slow.
 354  *
 355  * Revision 1.740  1995/01/28  15:57:57  john
 356  * Made joystick calibration be only when wrong detected in
 357  * menu or joystick axis changed.
 358  *
 359  * Revision 1.739  1995/01/28  15:21:03  yuan
 360  * Added X-tra life cheat.
 361  *
 362  * Revision 1.738  1995/01/27  14:08:31  rob
 363  * Fixed a bug.
 364  *
 365  * Revision 1.737  1995/01/27  14:04:59  rob
 366  * Its not my fault, Mark told me to do it!
 367  *
 368  * Revision 1.736  1995/01/27  13:12:18  rob
 369  * Added charging noises to play across net.
 370  *
 371  * Revision 1.735  1995/01/27  11:48:28  allender
 372  * check for newdemo_state to be paused and stop recording.  We might be
 373  * in between levels
 374  *
 375  * Revision 1.734  1995/01/26  22:11:41  mike
 376  * Purple chromo-blaster (ie, fusion cannon) spruce up (chromification)
 377  *
 378  * Revision 1.733  1995/01/26  17:03:04  mike
 379  * make fusion cannon have more chrome, make fusion, mega rock you!
 380  *
 381  * Revision 1.732  1995/01/25  14:37:25  john
 382  * Made joystick only prompt for calibration once...
 383  *
 384  * Revision 1.731  1995/01/24  15:49:14  john
 385  * Made typeing in long net messages wrap on
 386  * small screen sizes.
 387  *
 388  * Revision 1.730  1995/01/24  15:23:42  mike
 389  * network message tweaking.
 390  *
 391  * Revision 1.729  1995/01/24  12:00:47  john
 392  * Fixed bug with defing macro passing keys to controls.
 393  *
 394  * Revision 1.728  1995/01/24  11:53:35  john
 395  * Added better macro defining code.
 396  *
 397  * Revision 1.727  1995/01/23  22:17:15  john
 398  * Fixed bug with not clearing key buffer when leaving f8.
 399  *
 400  * Revision 1.726  1995/01/23  22:07:09  john
 401  * Added flush to game inputs during F8.
 402  *
 403  */
 404
 405 #ifdef HAVE_CONFIG_H
 406 #include <conf.h>
 407 #endif
 408
 409 #ifdef RCS
 410 char game_rcsid[] = "$Id: game.c,v 1.26 2004-05-20 01:29:14 btb Exp $";
 411 #endif
 412
 413 #ifdef WINDOWS
 414 #include "desw.h"
 415 #endif
 416
 417 #include <stdio.h>
 418 #include <stdlib.h>
 419 #include <string.h>
 420 #include <stdarg.h>
 421 #include <ctype.h>
 422 #include <time.h>
 423
 424 #ifdef MACINTOSH
 425 #include <Files.h>
 426 #include <StandardFile.h>
 427 #include <Quickdraw.h>
 428 #include <Script.h>
 429 #include <Strings.h>
 430 #endif
 431
 432 #ifdef OGL
 433 #include "ogl_init.h"
 434 #endif
 435
 436 #include "pstypes.h"
 437 #include "console.h"
 438 #include "pa_enabl.h"       //$$POLY_ACC
 439 #include "gr.h"
 440 #include "inferno.h"
 441 #include "game.h"
 442 #include "key.h"
 443 #include "object.h"
 444 #include "physics.h"
 445 #include "error.h"
 446 #include "joy.h"
 447 #include "mono.h"
 448 #include "iff.h"
 449 #include "pcx.h"
 450 #include "timer.h"
 451 #include "render.h"
 452 #include "laser.h"
 453 #include "screens.h"
 454 #include "textures.h"
 455 #include "slew.h"
 456 #include "gauges.h"
 457 #include "texmap.h"
 458 #include "3d.h"
 459 #include "effects.h"
 460 #include "menu.h"
 461 #include "gameseg.h"
 462 #include "wall.h"
 463 #include "ai.h"
 464 #include "fuelcen.h"
 465 #include "digi.h"
 466 #include "ibitblt.h"
 467 #include "u_mem.h"
 468 #include "palette.h"
 469 #include "morph.h"
 470 #include "lighting.h"
 471 #include "newdemo.h"
 472 #include "collide.h"
 473 #include "weapon.h"
 474 #include "sounds.h"
 475 #include "args.h"
 476 #include "gameseq.h"
 477 #include "automap.h"
 478 #include "text.h"
 479 #include "powerup.h"
 480 #include "fireball.h"
 481 #include "newmenu.h"
 482 #ifdef NETWORK
 483 #include "network.h"
 484 #endif
 485 #include "gamefont.h"
 486 #include "endlevel.h"
 487 #include "joydefs.h"
 488 #include "kconfig.h"
 489 #include "mouse.h"
 490 #include "switch.h"
 491 #include "controls.h"
 492 #include "songs.h"
 493 #include "gamepal.h"
 494
 495 #if defined(POLY_ACC)
 496 #include "poly_acc.h"
 497 #endif
 498
 499 #include "multi.h"
 500 #include "desc_id.h"
 501 #include "cntrlcen.h"
 502 #include "pcx.h"
 503 #include "state.h"
 504 #include "piggy.h"
 505 #include "multibot.h"
 506 #include "ai.h"
 507 #include "robot.h"
 508 #include "playsave.h"
 509 #include "fix.h"
 510 #include "hudmsg.h"
 511
 512 int VGA_current_mode;
 513
 514 #ifdef MWPROFILER
 515 #include <profiler.h>
 516 #endif
 517
 518 //#define TEST_TIMER    1               //if this is set, do checking on timer
 519
 520 #define SHOW_EXIT_PATH  1
 521
 522 #ifdef EDITOR
 523 #include "editor/editor.h"
 524 #endif
 525
 526 //#define _MARK_ON 1
 527 #ifdef __WATCOMC__
 528 #if __WATCOMC__ < 1000
 529 #include <wsample.h>            //should come after inferno.h to get mark setting
 530 #endif
 531 #endif
 532
 533
 534 extern void ReadControls(void);         // located in gamecntl.c
 535 extern int Current_display_mode;
 536 extern void do_final_boss_frame(void);
 537
 538 int     Speedtest_on = 0;
 539
 540 #ifndef NDEBUG
 541 int     Mark_count = 0;                 // number of debugging marks set
 542 int     Speedtest_start_time;
 543 int     Speedtest_segnum;
 544 int     Speedtest_sidenum;
 545 int     Speedtest_frame_start;
 546 int     Speedtest_count=0;                              //      number of times to do the debug test.
 547 #endif
 548
 549 static fix last_timer_value=0;
 550 fix ThisLevelTime=0;
 551
 552 #if defined(TIMER_TEST) && !defined(NDEBUG)
 553 fix _timer_value,actual_last_timer_value,_last_frametime;
 554 int stop_count,start_count;
 555 int time_stopped,time_started;
 556 #endif
 557
 558 #ifndef MACINTOSH
 559 ubyte * Game_cockpit_copy_code = NULL;
 560 #else
 561 ubyte Game_cockpit_copy_code = 0;
 562 ubyte Scanline_double = 1;
 563 #endif
 564
 565 int                     VR_screen_mode                  = 0;
 566
 567 ubyte                   VR_screen_flags = 0;            //see values in screens.h
 568 ubyte                   VR_current_page = 0;
 569 fix                     VR_eye_width            = F1_0;
 570 int                     VR_render_mode          = VR_NONE;
 571 int                     VR_low_res                      = 3;                            // Default to low res
 572 int                     VR_show_hud = 1;
 573 int                     VR_sensitivity     = 1;         // 0 - 2
 574
 575 //NEWVR
 576 int                     VR_eye_offset            = 0;
 577 int                     VR_eye_switch            = 0;
 578 int                     VR_eye_offset_changed = 0;
 579 int                     VR_use_reg_code         = 0;
 580
 581 grs_canvas  *VR_offscreen_buffer        = NULL;         // The offscreen data buffer
 582 grs_canvas      VR_render_buffer[2];                                    //  Two offscreen buffers for left/right eyes.
 583 grs_canvas      VR_render_sub_buffer[2];                        //  Two sub buffers for left/right eyes.
 584 grs_canvas      VR_screen_pages[2];                                     //  Two pages of VRAM if paging is available
 585 grs_canvas      VR_editor_canvas;                                               //  The canvas that the editor writes to.
 586
 587 #ifdef WINDOWS
 588 //@@ LPDIRECTDRAWSURFACE _lpDDSMask = NULL;
 589 dd_grs_canvas *dd_VR_offscreen_buffer = NULL;
 590 dd_grs_canvas dd_VR_screen_pages[2];
 591 dd_grs_canvas dd_VR_render_buffer[2];
 592 dd_grs_canvas dd_VR_render_sub_buffer[2];
 593
 594 void game_win_init_cockpit_mask(int sram);
 595 #endif
 596
 597 //do menus work in 640x480 or 320x200?
 598 //PC version sets this in main().  Mac versios is always high-res, so set to 1 here
 599 int MenuHiresAvailable = 1;             //can we do highres menus?
 600 int MenuHires = 1;                              //are we currently in highres menus?
 601
 602 int Debug_pause=0;                              //John's debugging pause system
 603
 604 int Cockpit_mode=CM_FULL_COCKPIT;               //set game.h for values
 605
 606 int Cockpit_mode_save=-1;                                       //set while in letterbox or rear view, or -1
 607 int force_cockpit_redraw=0;
 608
 609 cvar_t r_framerate = {"r_framerate","0"};
 610
 611 int PaletteRedAdd, PaletteGreenAdd, PaletteBlueAdd;
 612
 613 //      Toggle_var points at a variable which gets !ed on ctrl-alt-T press.
 614 int     Dummy_var;
 615 int     *Toggle_var = &Dummy_var;
 616
 617 #ifdef EDITOR
 618 //flag for whether initial fade-in has been done
 619 char faded_in;
 620 #endif
 621
 622 #ifndef NDEBUG                          //these only exist if debugging
 623
 624 int Game_double_buffer = 1;     //double buffer by default
 625 fix fixed_frametime=0;          //if non-zero, set frametime to this
 626
 627 #endif
 628
 629 int Game_suspended=0;           //if non-zero, nothing moves but player
 630
 631 fix     RealFrameTime;
 632 fix     Auto_fire_fusion_cannon_time = 0;
 633 fix     Fusion_charge = 0;
 634 fix     Fusion_next_sound_time = 0;
 635 fix     Fusion_last_sound_time = 0;
 636
 637 int Debug_spew = 1;
 638 int Game_turbo_mode = 0;
 639
 640 int Game_mode = GM_GAME_OVER;
 641
 642 int     Global_laser_firing_count = 0;
 643 int     Global_missile_firing_count = 0;
 644
 645 grs_bitmap background_bitmap;
 646
 647 int Game_aborted;
 648
 649 #define BACKGROUND_NAME "statback.pcx"
 650
 651 //      Function prototypes for GAME.C exclusively.
 652
 653 void GameLoop(int RenderFlag, int ReadControlsFlag);
 654 void FireLaser(void);
 655 void slide_textures(void);
 656 void powerup_grab_cheat_all(void);
 657
 658 //      Other functions
 659 extern void multi_check_for_killgoal_winner();
 660 extern void RestoreGameSurfaces();
 661
 662 // window functions
 663
 664 void grow_window(void);
 665 void shrink_window(void);
 666
 667 // text functions
 668
 669 void fill_background();
 670
 671 #ifndef RELEASE
 672 void show_framerate(void);
 673 void ftoa(char *string, fix f);
 674 #endif
 675
 676 extern ubyte DefiningMarkerMessage;
 677 extern char Marker_input[];
 678
 679 //      ==============================================================================================
 680
 681 extern char john_head_on;
 682
 683 void load_background_bitmap()
 684 {
 685         ubyte pal[256*3];
 686         int pcx_error;
 687
 688         if (background_bitmap.bm_data)
 689                 d_free(background_bitmap.bm_data);
 690
 691         background_bitmap.bm_data=NULL;
 692         pcx_error = pcx_read_bitmap(john_head_on?"johnhead.pcx":BACKGROUND_NAME,&background_bitmap,BM_LINEAR,pal);
 693         if (pcx_error != PCX_ERROR_NONE)
 694                 Error("File %s - PCX error: %s",BACKGROUND_NAME,pcx_errormsg(pcx_error));
 695         gr_remap_bitmap_good( &background_bitmap, pal, -1, -1 );
 696 }
 697
 698
 699 //this is called once per game
 700 void init_game()
 701 {
 702         atexit(close_game);             //for cleanup
 703
 704         init_objects();
 705
 706         init_special_effects();
 707
 708         init_ai_system();
 709
 710         init_gauge_canvases();
 711
 712         init_exploding_walls();
 713
 714         load_background_bitmap();
 715
 716         Clear_window = 2;               //      do portal only window clear.
 717
 718         set_detail_level_parameters(Detail_level);
 719
 720         build_mission_list(0);
 721
 722         /* Register cvars */
 723         cvar_registervariable(&r_framerate);
 724
 725 }
 726
 727
 728 void reset_palette_add()
 729 {
 730         PaletteRedAdd           = 0;
 731         PaletteGreenAdd = 0;
 732         PaletteBlueAdd          = 0;
 733         //gr_palette_step_up( PaletteRedAdd, PaletteGreenAdd, PaletteBlueAdd );
 734 }
 735
 736
 737 #ifdef WINDOWS
 738 void win_get_span_list(grs_bitmap *bm, int miny, int maxy)
 739 {
 740         int x,y;
 741         int mode = 0;
 742         ubyte *data;
 743         int offset;
 744         int lspan=0, rspan=0, span=0;
 745 //@@FILE *fp;
 746
 747         data = bm->bm_data;
 748 //@@    fp = fopen("cockspan.dat", "w");
 749
 750         for (y = 0; y < miny; y++)
 751                 win_cockpit_mask[y].num = 0;
 752
 753         for (y = miny; y <= maxy; y++)
 754         {
 755                 span = 0;
 756                 //@@ fprintf(fp, "line %d: ", y);
 757                 for (x = 0; x < bm->bm_w; x++)
 758                 {
 759                         offset = y*bm->bm_rowsize + x;
 760
 761                         if (data[offset] == 255) {
 762                                 switch (mode)
 763                                 {
 764                                         case 0:                         // Start Mode
 765                                                 lspan   = x;
 766                                                 win_cockpit_mask[y].span[span].xmin = x;
 767                                                 mode = 1;
 768                                         //@@    fprintf(fp, "<%d,", lspan);
 769                                                 break;
 770
 771                                         case 1:                         // Transparency mode
 772                                                 rspan = x;
 773                                                 win_cockpit_mask[y].span[span].xmax = x;
 774                                                 break;
 775
 776                                         case 2:                         // Switch from Draw mode to transparent
 777                                                 lspan = x;
 778                                                 win_cockpit_mask[y].span[span].xmin = x;
 779                                         //@@    fprintf(fp, "<%d,", lspan);
 780                                                 mode = 1;
 781                                                 break;
 782                                 }
 783                         }
 784                         else {
 785                                 switch(mode)
 786                                 {
 787                                         case 0:                         // Start mode
 788                                                 mode = 2;
 789                                                 break;
 790
 791                                         case 1:                         // Switching from transparent to Draw
 792                                                 rspan = x;
 793                                                 mode = 2;
 794                                                 win_cockpit_mask[y].span[span].xmax = x;
 795                                                 span++;
 796                                         //@@    fprintf(fp, "%d> ", rspan);
 797                                                 break;
 798
 799                                         case 2:
 800                                                 break;
 801                                 }
 802                         }
 803                 }
 804                 if (mode == 1) {
 805                 //@@    fprintf(fp, "%d> ", rspan);
 806                         win_cockpit_mask[y].span[span].xmax = rspan;
 807                         span++;
 808                 }
 809                 win_cockpit_mask[y].num = span;
 810         //@@    fprintf(fp, "\n");
 811                 mode = 0;
 812         }
 813         win_cockpit_mask[y].num = 255;
 814 }
 815 #endif //WINDOWS
 816
 817
 818 void game_show_warning(char *s)
 819 {
 820
 821         if (!((Game_mode & GM_MULTI) && (Function_mode == FMODE_GAME)))
 822                 stop_time();
 823
 824         nm_messagebox( TXT_WARNING, 1, TXT_OK, s );
 825
 826         if (!((Game_mode & GM_MULTI) && (Function_mode == FMODE_GAME)))
 827                 start_time();
 828 }
 829
 830
 831 //these should be in gr.h
 832 #define cv_w  cv_bitmap.bm_w
 833 #define cv_h  cv_bitmap.bm_h
 834
 835 //added 3/24/99 by Owen Evans for screen res changing
 836 u_int32_t Game_screen_mode = 0;
 837 //end added - OE
 838 int Game_window_x = 0;
 839 int Game_window_y = 0;
 840 int Game_window_w = 0;
 841 int Game_window_h = 0;
 842 int max_window_w = 0;
 843 int max_window_h = 0;
 844
 845 extern void newdemo_record_cockpit_change(int);
 846
 847 //initialize the various canvases on the game screen
 848 //called every time the screen mode or cockpit changes
 849 void init_cockpit()
 850 {
 851         int minx, maxx, miny, maxy;
 852
 853 #if defined(POLY_ACC)
 854     pa_flush();                 // get rid of undrawn polys.
 855     pa_clear_buffer(1, 0);
 856 #endif
 857
 858         //Initialize the on-screen canvases
 859
 860         if (Newdemo_state==ND_STATE_RECORDING) {
 861                 newdemo_record_cockpit_change(Cockpit_mode);
 862         }
 863
 864         if ( VR_render_mode != VR_NONE )
 865                 Cockpit_mode = CM_FULL_SCREEN;
 866
 867         if (!(VR_screen_flags & VRF_ALLOW_COCKPIT) && (Cockpit_mode==CM_FULL_COCKPIT || Cockpit_mode==CM_STATUS_BAR || Cockpit_mode==CM_REAR_VIEW) )
 868                 Cockpit_mode = CM_FULL_SCREEN;
 869
 870         if ( Screen_mode == SCREEN_EDITOR )
 871                 Cockpit_mode = CM_FULL_SCREEN;
 872
 873 #ifdef OGL
 874         if (Cockpit_mode == CM_FULL_COCKPIT || Cockpit_mode == CM_REAR_VIEW) {
 875                 hud_message(MSGC_GAME_FEEDBACK, "Cockpit not available in GL mode");
 876                 Cockpit_mode = CM_FULL_SCREEN;
 877         }
 878 #endif
 879
 880         WINDOS(
 881                 dd_gr_set_current_canvas(NULL),
 882                 gr_set_current_canvas(NULL)
 883                 );
 884         gr_set_curfont( GAME_FONT );
 885
 886 #if !defined(MACINTOSH) && !defined(WINDOWS)
 887         if (Game_cockpit_copy_code)
 888                 d_free(Game_cockpit_copy_code);
 889         Game_cockpit_copy_code  = NULL;
 890 #else
 891         if (Game_cockpit_copy_code)
 892                 Game_cockpit_copy_code = 0;
 893 #endif
 894
 895 //@@    #ifdef WINDOWS
 896 //@@            if (_lpDDSMask) { DDFreeSurface(_lpDDSMask); _lpDDSMask = NULL; }
 897 //@@    #endif
 898
 899 #ifdef WINDOWS
 900         game_win_init_cockpit_mask(0);
 901 #endif
 902
 903         switch( Cockpit_mode ) {
 904         case CM_FULL_COCKPIT:
 905         case CM_REAR_VIEW: {
 906                 grs_bitmap *bm = &GameBitmaps[cockpit_bitmap[Cockpit_mode+(Current_display_mode?(Num_cockpits/2):0)].index];
 907
 908                 PIGGY_PAGE_IN(cockpit_bitmap[Cockpit_mode+(Current_display_mode?(Num_cockpits/2):0)]);
 909
 910 #ifdef WINDOWS
 911                 dd_gr_set_current_canvas(NULL);
 912                 game_win_init_cockpit_mask(1);
 913                 dd_gr_set_current_canvas(dd_VR_offscreen_buffer);
 914 #else
 915                 gr_set_current_canvas(VR_offscreen_buffer);
 916 #endif
 917
 918                 WIN(DDGRLOCK(dd_grd_curcanv));
 919                 gr_bitmap( 0, 0, bm );
 920                 bm = &VR_offscreen_buffer->cv_bitmap;
 921                 bm->bm_flags = BM_FLAG_TRANSPARENT;
 922                 gr_ibitblt_find_hole_size ( bm, &minx, &miny, &maxx, &maxy );
 923                 WIN(    win_get_span_list(bm, miny, maxy);
 924                                 DDGRUNLOCK(dd_grd_curcanv)
 925                         );
 926
 927 #ifndef WINDOWS
 928 #ifndef __MSDOS__
 929                 gr_ibitblt_create_mask( bm, minx, miny, maxx-minx+1, maxy-miny+1, VR_offscreen_buffer->cv_bitmap.bm_rowsize);
 930 #else
 931                 if ( Current_display_mode ) {
 932 #if defined(POLY_ACC)
 933                         Game_cockpit_copy_code  = gr_ibitblt_create_mask_pa( bm, minx, miny, maxx-minx+1, maxy-miny+1, VR_offscreen_buffer->cv_bitmap.bm_rowsize );
 934                         pa_clear_buffer(1, 0);      // clear offscreen to reduce white flash.
 935 #else
 936                         Game_cockpit_copy_code  = gr_ibitblt_create_mask_svga( bm, minx, miny, maxx-minx+1, maxy-miny+1, VR_offscreen_buffer->cv_bitmap.bm_rowsize );
 937 #endif
 938                 } else
 939                         Game_cockpit_copy_code  = gr_ibitblt_create_mask( bm, minx, miny, maxx-minx+1, maxy-miny+1, VR_offscreen_buffer->cv_bitmap.bm_rowsize );
 940 #endif
 941                 bm->bm_flags = 0;               // Clear all flags for offscreen canvas
 942 #else
 943                 Game_cockpit_copy_code  = (ubyte *)(1);
 944                 bm->bm_flags = 0;               // Clear all flags for offscreen canvas
 945 #endif
 946                 game_init_render_sub_buffers( 0, 0, maxx-minx+1, maxy-miny+1 );
 947                 break;
 948         }
 949
 950         case CM_FULL_SCREEN:
 951
 952                 max_window_h = grd_curscreen->sc_h;
 953
 954                 if (Game_window_h > max_window_h || VR_screen_flags&VRF_ALLOW_COCKPIT)
 955                         Game_window_h = max_window_h;
 956
 957                 if (Game_window_w > max_window_w || VR_screen_flags&VRF_ALLOW_COCKPIT)
 958                         Game_window_w = max_window_w;
 959
 960                 Game_window_x = (max_window_w - Game_window_w)/2;
 961                 Game_window_y = (max_window_h - Game_window_h)/2;
 962
 963                 game_init_render_sub_buffers( Game_window_x, Game_window_y, Game_window_w, Game_window_h );
 964                 break;
 965
 966         case CM_STATUS_BAR:
 967
 968         max_window_h = grd_curscreen->sc_h - GameBitmaps[cockpit_bitmap[CM_STATUS_BAR+(Current_display_mode?(Num_cockpits/2):0)].index].bm_h;
 969
 970                 if (Game_window_h > max_window_h)
 971                         Game_window_h = max_window_h;
 972
 973                 if (Game_window_w > max_window_w)
 974                         Game_window_w = max_window_w;
 975
 976                 Game_window_x = (max_window_w - Game_window_w)/2;
 977                 Game_window_y = (max_window_h - Game_window_h)/2;
 978
 979                 game_init_render_sub_buffers( Game_window_x, Game_window_y, Game_window_w, Game_window_h );
 980                 break;
 981
 982         case CM_LETTERBOX:      {
 983                 int x,y,w,h;
 984
 985                 x = 0; w = VR_render_buffer[0].cv_bitmap.bm_w;          //VR_render_width;
 986                 h = (VR_render_buffer[0].cv_bitmap.bm_h * 7) / 10;
 987                 y = (VR_render_buffer[0].cv_bitmap.bm_h-h)/2;
 988
 989                 game_init_render_sub_buffers( x, y, w, h );
 990                 break;
 991                 }
 992
 993         }
 994
 995 WINDOS(
 996         dd_gr_set_current_canvas(NULL),
 997         gr_set_current_canvas(NULL)
 998 );
 999 }
1000
1001 //selects a given cockpit (or lack of one).  See types in game.h
1002 void select_cockpit(int mode)
1003 {
1004         if (mode != Cockpit_mode) {             //new mode
1005                 Cockpit_mode=mode;
1006                 init_cockpit();
1007         }
1008 }
1009
1010 extern int last_drawn_cockpit[2];
1011
1012 //force cockpit redraw next time. call this if you've trashed the screen
1013 void reset_cockpit()
1014 {
1015         force_cockpit_redraw=1;
1016         last_drawn_cockpit[0] = -1;
1017         last_drawn_cockpit[1] = -1;
1018 }
1019
1020 // void HUD_clear_messages();                           //Already declared in gauges.h
1021
1022 //NEWVR
1023 void VR_reset_params()
1024 {
1025         VR_eye_width = VR_SEPARATION;
1026         VR_eye_offset = VR_PIXEL_SHIFT;
1027         VR_eye_offset_changed = 2;
1028 }
1029
1030 void game_init_render_sub_buffers( int x, int y, int w, int h )
1031 {
1032 #ifdef WINDOWS
1033         dd_gr_init_sub_canvas( &dd_VR_render_sub_buffer[0], &dd_VR_render_buffer[0], x, y, w, h );
1034         dd_gr_init_sub_canvas( &dd_VR_render_sub_buffer[1], &dd_VR_render_buffer[1], x, y, w, h );
1035
1036         dd_VR_render_sub_buffer[0].canvas.cv_bitmap.bm_x = 0;
1037         dd_VR_render_sub_buffer[0].canvas.cv_bitmap.bm_y = 0;
1038         dd_VR_render_sub_buffer[0].xoff = x;
1039         dd_VR_render_sub_buffer[0].yoff = y;
1040         dd_VR_render_sub_buffer[1].canvas.cv_bitmap.bm_x = 0;
1041         dd_VR_render_sub_buffer[1].canvas.cv_bitmap.bm_y = 0;
1042         dd_VR_render_sub_buffer[1].xoff = x;
1043         dd_VR_render_sub_buffer[1].yoff = y;
1044
1045 #endif
1046         if (Scanline_double) {
1047                 #ifdef MACINTOSH
1048                 if ( w & 0x3 )
1049                         w &= ~0x3;
1050                 gr_init_sub_canvas( &VR_render_sub_buffer[0], &VR_render_buffer[0], x, y, w/2, (h/2)+1);
1051                 gr_init_sub_canvas( &VR_render_sub_buffer[1], &VR_render_buffer[1], x, y, w/2, (h/2)+1);
1052                 #endif
1053         } else {
1054                 gr_init_sub_canvas( &VR_render_sub_buffer[0], &VR_render_buffer[0], x, y, w, h );
1055                 gr_init_sub_canvas( &VR_render_sub_buffer[1], &VR_render_buffer[1], x, y, w, h );
1056         }
1057
1058         #ifdef MACINTOSH
1059                 #ifdef POLY_ACC
1060                         if ( PAEnabled )
1061                         {
1062                                 TQARect newBounds;
1063
1064                                 newBounds.left = x;
1065                                 newBounds.right = x + w;
1066                                 newBounds.top = y;
1067                                 newBounds.bottom = y + h;
1068
1069                                 pa_set_context(kGamePlayDrawContextID, &newBounds);             // must resize/create new context
1070                         }
1071                 #endif
1072         #endif
1073
1074 #ifdef WINDOWS
1075         VR_render_sub_buffer[0].cv_bitmap.bm_x = 0;
1076         VR_render_sub_buffer[0].cv_bitmap.bm_y = 0;
1077         VR_render_sub_buffer[1].cv_bitmap.bm_x = 0;
1078         VR_render_sub_buffer[1].cv_bitmap.bm_y = 0;
1079 #endif
1080 }
1081
1082
1083 #ifdef WINDOWS
1084 // Sets up the canvases we will be rendering to (WIN95)
1085 void game_init_render_buffers(int screen_mode, int render_w, int render_h, int render_method, int flags )
1086 {
1087 //      Hack for switching to higher that 640x480 modes (DDraw doesn't allow
1088 //       creating surfaces greater than the current resolution
1089
1090         if (GRMODEINFO(rw) < render_w || GRMODEINFO(rh) < render_h) {
1091                 render_w = GRMODEINFO(rw);
1092                 render_h = GRMODEINFO(rh);
1093         }
1094
1095         VR_screen_mode          = screen_mode;
1096
1097         VR_screen_flags =  flags;
1098
1099         VR_reset_params();
1100         VR_render_mode  = render_method;
1101
1102         Game_window_w           = render_w;
1103         Game_window_h           = render_h;
1104
1105         if (dd_VR_offscreen_buffer && dd_VR_offscreen_buffer != dd_grd_backcanv) {
1106                 dd_gr_free_canvas(dd_VR_offscreen_buffer);
1107         }
1108
1109         if ( (VR_render_mode==VR_AREA_DET) || (VR_render_mode==VR_INTERLACED ) )        {
1110                 if ( render_h*2 < 200 ) {
1111                         Int3();         // Not Supported yet!!!
1112 //                      VR_offscreen_buffer = gr_create_canvas( render_w, 200 );
1113                 }
1114                 else {
1115                         Int3();         // Not Supported yet!!!
1116 //                      VR_offscreen_buffer = gr_create_canvas( render_w, render_h*2 );
1117                 }
1118
1119                 Int3();                 // Not Supported yet!!!
1120 //              gr_init_sub_canvas( &VR_render_buffer[0], VR_offscreen_buffer, 0, 0, render_w, render_h );
1121 //              gr_init_sub_canvas( &VR_render_buffer[1], VR_offscreen_buffer, 0, render_h, render_w, render_h );
1122         }
1123         else if (GRMODEINFO(paged) && !GRMODEINFO(dbuf)) {
1124         //      Here we will make the VR_offscreen_buffer the 2nd page and hopefully
1125         //      we can just flip it, saving a blt.
1126
1127                 dd_VR_offscreen_buffer = dd_grd_backcanv;
1128                 VR_offscreen_buffer = & dd_grd_backcanv->canvas;
1129         }
1130         else if (GRMODEINFO(dbuf)||GRMODEINFO(emul)) {
1131         //      The offscreen buffer will be created.  We will just blt this
1132         //      to the screen (which may be blted to the primary surface)
1133                 if ( render_h < 200 ) {
1134                         dd_VR_offscreen_buffer = dd_gr_create_canvas(render_w, 200);
1135                         VR_offscreen_buffer = &dd_VR_offscreen_buffer->canvas;
1136                 }
1137                 else {
1138                         dd_VR_offscreen_buffer = dd_gr_create_canvas(render_w, render_h);
1139                         VR_offscreen_buffer = &dd_VR_offscreen_buffer->canvas;
1140                 }
1141         }
1142
1143         dd_gr_init_sub_canvas( &dd_VR_render_buffer[0], dd_VR_offscreen_buffer, 0, 0, render_w, render_h );
1144         dd_gr_init_sub_canvas( &dd_VR_render_buffer[1], dd_VR_offscreen_buffer, 0, 0, render_w, render_h );
1145         gr_init_sub_canvas( &VR_render_buffer[0], VR_offscreen_buffer, 0, 0, render_w, render_h );
1146         gr_init_sub_canvas( &VR_render_buffer[1], VR_offscreen_buffer, 0, 0, render_w, render_h );
1147
1148         game_init_render_sub_buffers( 0, 0, render_w, render_h );
1149 }
1150
1151 #else
1152
1153 // Sets up the canvases we will be rendering to (NORMAL VERSION)
1154 void game_init_render_buffers(int screen_mode, int render_w, int render_h, int render_method, int flags )
1155 {
1156 //      if (vga_check_mode(screen_mode) != 0)
1157 //              Error("Cannot set requested video mode");
1158
1159         VR_screen_mode          =       screen_mode;
1160
1161         VR_screen_flags =  flags;
1162
1163 //NEWVR
1164         VR_reset_params();
1165         VR_render_mode  = render_method;
1166
1167         Game_window_w           = render_w;
1168         Game_window_h           = render_h;
1169
1170         if (VR_offscreen_buffer) {
1171                 gr_free_canvas(VR_offscreen_buffer);
1172         }
1173
1174         if ( (VR_render_mode==VR_AREA_DET) || (VR_render_mode==VR_INTERLACED ) )        {
1175                 if ( render_h*2 < 200 ) {
1176                         VR_offscreen_buffer = gr_create_canvas( render_w, 200 );
1177                 }
1178                 else {
1179                         VR_offscreen_buffer = gr_create_canvas( render_w, render_h*2 );
1180                 }
1181
1182                 gr_init_sub_canvas( &VR_render_buffer[0], VR_offscreen_buffer, 0, 0, render_w, render_h );
1183                 gr_init_sub_canvas( &VR_render_buffer[1], VR_offscreen_buffer, 0, render_h, render_w, render_h );
1184         }
1185         else {
1186                 if ( render_h < 200 ) {
1187                         VR_offscreen_buffer = gr_create_canvas( render_w, 200 );
1188                 }
1189                 else {
1190 #if defined(POLY_ACC)
1191                         #ifndef MACINTOSH
1192             VR_offscreen_buffer = gr_create_canvas( render_w, render_h );
1193             d_free(VR_offscreen_buffer->cv_bitmap.bm_data);
1194             gr_init_canvas(VR_offscreen_buffer, pa_get_buffer_address(1), BM_LINEAR15, render_w, render_h);
1195                         #else
1196                                 if ( PAEnabled || gConfigInfo.mAcceleration ) {
1197                                         Cockpit_mode=CM_FULL_SCREEN;            // HACK HACK HACK HACK HACK!!!!
1198                                         VR_offscreen_buffer = gr_create_canvas2(render_w, render_h, BM_LINEAR15);
1199                                 } else
1200                     VR_offscreen_buffer = gr_create_canvas( render_w, render_h );
1201                         #endif
1202 #else
1203             VR_offscreen_buffer = gr_create_canvas( render_w, render_h );
1204 #endif
1205         }
1206
1207 #ifdef OGL
1208                 VR_offscreen_buffer->cv_bitmap.bm_type = BM_OGL;
1209 #endif
1210
1211                 gr_init_sub_canvas( &VR_render_buffer[0], VR_offscreen_buffer, 0, 0, render_w, render_h );
1212                 gr_init_sub_canvas( &VR_render_buffer[1], VR_offscreen_buffer, 0, 0, render_w, render_h );
1213         }
1214
1215         game_init_render_sub_buffers( 0, 0, render_w, render_h );
1216 }
1217 #endif
1218
1219 //called to get the screen in a mode compatible with popup menus.
1220 //if we can't have popups over the game screen, switch to menu mode.
1221 void set_popup_screen(void)
1222 {
1223         //WIN(LoadCursorWin(MOUSE_DEFAULT_CURSOR));
1224
1225 #ifndef OGL // always have to switch to menu mode
1226         if (! (VR_screen_flags & VRF_COMPATIBLE_MENUS))
1227 #endif
1228         {
1229                 set_screen_mode(SCREEN_MENU);           //must switch to menu mode
1230         }
1231 }
1232
1233
1234 //called to change the screen mode. Parameter sm is the new mode, one of
1235 //SMODE_GAME or SMODE_EDITOR. returns mode acutally set (could be other
1236 //mode if cannot init requested mode)
1237 int set_screen_mode(int sm)
1238 {
1239 WIN(static int force_mode_change=0);
1240 WIN(static int saved_window_w);
1241 WIN(static int saved_window_h);
1242
1243 #ifdef EDITOR
1244         if ( (sm==SCREEN_MENU) && (Screen_mode==SCREEN_EDITOR) )        {
1245                 gr_set_current_canvas( Canv_editor );
1246                 return 1;
1247         }
1248 #endif
1249
1250 #ifdef WINDOWS
1251         if ( Screen_mode == sm && W95DisplayMode == VR_screen_mode) {
1252                 dd_gr_set_current_canvas( &dd_VR_screen_pages[VR_current_page] );
1253                 return 1;
1254         }
1255 #else
1256         if ( Screen_mode == sm && VGA_current_mode == VR_screen_mode) {
1257                 gr_set_current_canvas( &VR_screen_pages[VR_current_page] );
1258                 return 1;
1259         }
1260 #endif
1261
1262 #ifdef OGL
1263         if ((Screen_mode == sm) && !((sm==SCREEN_GAME) && (grd_curscreen->sc_mode != VR_screen_mode) && (Screen_mode == SCREEN_GAME))) {
1264                 gr_set_current_canvas( &VR_screen_pages[VR_current_page] );
1265                 ogl_set_screen_mode();
1266                 return 1;
1267         }
1268 #endif
1269
1270 #ifdef EDITOR
1271         Canv_editor = NULL;
1272 #endif
1273
1274         Screen_mode = sm;
1275
1276         switch( Screen_mode )
1277         {
1278                 case SCREEN_MENU:
1279                 #ifdef WINDOWS
1280                         //mouse_set_mode(0);
1281                         //ShowCursorW();
1282                         if (!(VR_screen_flags & VRF_COMPATIBLE_MENUS)) {
1283                         // HACK!!!  Meant to save window size when switching from
1284                         // non-compat menu mode to menu mode.
1285                                 saved_window_w = Game_window_w;
1286                                 saved_window_h = Game_window_h;
1287                                 force_mode_change = 1;
1288                         }
1289                         if (W95DisplayMode != SM95_640x480x8) {
1290 //@@                            piggy_bitmap_page_out_all_w();          // 2D GFX Flush cache.
1291                                 DDSETDISPLAYMODE(SM95_640x480x8);
1292                                 dd_gr_init_screen();
1293                                 if (!gr_palette_faded_out) gr_palette_load(gr_palette);
1294                         }
1295
1296                         dd_gr_init_sub_canvas(&dd_VR_screen_pages[0], dd_grd_screencanv,
1297                                                                         0,0,
1298                                                                         dd_grd_screencanv->canvas.cv_bitmap.bm_w,
1299                                                                         dd_grd_screencanv->canvas.cv_bitmap.bm_h);
1300                         dd_gr_init_sub_canvas(&dd_VR_screen_pages[1], dd_grd_screencanv,
1301                                                                         0,0,
1302                                                                         dd_grd_screencanv->canvas.cv_bitmap.bm_w,
1303                                                                         dd_grd_screencanv->canvas.cv_bitmap.bm_h);
1304                         MenuHires = 1;
1305                         FontHires = FontHiresAvailable;
1306
1307                 #else
1308                 {
1309                         int menu_mode;
1310
1311                         MenuHires = MenuHiresAvailable;         //do highres if we can
1312
1313 #if defined(POLY_ACC)
1314                                 #ifndef MACINTOSH
1315                     menu_mode = MenuHires?SM(640,480):SM(320,200);
1316                                 #else
1317                                         menu_mode = PAEnabled?SM_640x480x15xPA:SM_640x480V;
1318                                 #endif
1319 #else
1320             menu_mode = MenuHires?SM(640,480):SM(320,200);
1321 #endif
1322
1323                         if (VGA_current_mode != menu_mode) {
1324                                 if (gr_set_mode(menu_mode))
1325                                         Error("Cannot set screen mode for menu");
1326                                 if (!gr_palette_faded_out)
1327                                         gr_palette_load(gr_palette);
1328                         }
1329
1330                         gr_init_sub_canvas( &VR_screen_pages[0], &grd_curscreen->sc_canvas, 0, 0, grd_curscreen->sc_w, grd_curscreen->sc_h );
1331                         gr_init_sub_canvas( &VR_screen_pages[1], &grd_curscreen->sc_canvas, 0, 0, grd_curscreen->sc_w, grd_curscreen->sc_h );
1332
1333                         FontHires = FontHiresAvailable && MenuHires;
1334
1335                 }
1336                 #endif
1337                 break;
1338
1339         case SCREEN_GAME:
1340         #ifdef WINDOWS
1341                 //mouse_set_mode(1);
1342                 HideCursorW();
1343                 if (force_mode_change || (W95DisplayMode != VR_screen_mode)) {
1344
1345                         DDSETDISPLAYMODE(VR_screen_mode);
1346 //@@                    piggy_bitmap_page_out_all_w();          // 2D GFX Flush cache.
1347                         dd_gr_init_screen();
1348                         mprintf((0, "Reinitializing render buffers due to display mode change.\n"));
1349                         game_init_render_buffers(W95DisplayMode,
1350                                         GRMODEINFO(rw), GRMODEINFO(rh),
1351                                         VR_render_mode, VR_screen_flags);
1352
1353                         reset_cockpit();
1354                 }
1355         #else
1356                 if (VGA_current_mode != VR_screen_mode) {
1357                         if (gr_set_mode(VR_screen_mode))        {
1358                                 Error("Cannot set desired screen mode for game!");
1359                                 //we probably should do something else here, like select a standard mode
1360                         }
1361                         #ifdef MACINTOSH
1362                         if ( (Config_control_type == 1) && (Function_mode == FMODE_GAME) )
1363                                 joydefs_calibrate();
1364                         #endif
1365                         reset_cockpit();
1366                 }
1367         #endif
1368
1369                 if ( VR_render_mode == VR_NONE )
1370                 {
1371                         max_window_w = grd_curscreen->sc_w;
1372                         max_window_h = grd_curscreen->sc_h;
1373
1374                         if (VR_screen_flags & VRF_ALLOW_COCKPIT) {
1375                                 if (Cockpit_mode == CM_STATUS_BAR)
1376                         max_window_h = grd_curscreen->sc_h - GameBitmaps[cockpit_bitmap[CM_STATUS_BAR+(Current_display_mode?(Num_cockpits/2):0)].index].bm_h;
1377                         }
1378                         else if (Cockpit_mode != CM_LETTERBOX)
1379                                 Cockpit_mode = CM_FULL_SCREEN;
1380
1381               if (Game_window_h==0 || Game_window_h > max_window_h || Game_window_w==0 || Game_window_w > max_window_w) {
1382                                 Game_window_w = max_window_w;
1383                                 Game_window_h = max_window_h;
1384               }
1385
1386                 }
1387                 else
1388                         Cockpit_mode = CM_FULL_SCREEN;
1389
1390                 #ifdef WINDOWS
1391                 //      Super hack.   If we are switching from a 320x200 game to 640x480.
1392                 //                                              and we were in a menumode when switching, we don't
1393                 //                                              restore Game_window vals
1394                         if (force_mode_change && (W95DisplayMode == SM95_320x200x8X)) {
1395                                 Game_window_w = saved_window_w;
1396                                 Game_window_h = saved_window_h;
1397                                 force_mode_change = 0;
1398                         }
1399                 #endif
1400
1401
1402         //      Define screen pages for game mode
1403         // If we designate through screen_flags to use paging, then do so.
1404                 WINDOS(
1405                         dd_gr_init_sub_canvas( &dd_VR_screen_pages[0], dd_grd_screencanv, 0, 0, grd_curscreen->sc_w, grd_curscreen->sc_h ),
1406                         gr_init_sub_canvas( &VR_screen_pages[0], &grd_curscreen->sc_canvas, 0, 0, grd_curscreen->sc_w, grd_curscreen->sc_h )
1407                 );
1408
1409                 if ( VR_screen_flags&VRF_USE_PAGING ) {
1410                 WINDOS(
1411                         dd_gr_init_sub_canvas( &dd_VR_screen_pages[1], dd_grd_backcanv, 0, 0, grd_curscreen->sc_w, grd_curscreen->sc_h ),
1412                         gr_init_sub_canvas( &VR_screen_pages[1], &grd_curscreen->sc_canvas, 0, grd_curscreen->sc_h, grd_curscreen->sc_w, grd_curscreen->sc_h )
1413                 );
1414                 }
1415                 else {
1416                 WINDOS (
1417                         dd_gr_init_sub_canvas( &dd_VR_screen_pages[1], dd_grd_screencanv, 0, 0, grd_curscreen->sc_w, grd_curscreen->sc_h ),
1418                         gr_init_sub_canvas( &VR_screen_pages[1], &grd_curscreen->sc_canvas, 0, 0, grd_curscreen->sc_w, grd_curscreen->sc_h )
1419                 );
1420                 }
1421
1422                 init_cockpit();
1423
1424         #ifdef WINDOWS
1425                 FontHires = FontHiresAvailable && (Current_display_mode != 0);
1426                 MenuHires = 1;
1427         #else
1428                 FontHires = FontHiresAvailable && (MenuHires = ((Current_display_mode != 0) && (Current_display_mode != 2)));
1429         #endif
1430
1431                 if ( VR_render_mode != VR_NONE )        {
1432                         // for 640x480 or higher, use hires font.
1433                         if (FontHiresAvailable && (grd_curscreen->sc_h > 400))
1434                                 FontHires = 1;
1435                         else
1436                                 FontHires = 0;
1437                 }
1438                 con_resize();
1439
1440                 break;
1441         #ifdef EDITOR
1442         case SCREEN_EDITOR:
1443                 if (grd_curscreen->sc_mode != SM(800,600))      {
1444                         int gr_error;
1445                         if ((gr_error=gr_set_mode(SM(800,600)))!=0) { //force into game scrren
1446                                 Warning("Cannot init editor screen (error=%d)",gr_error);
1447                                 return 0;
1448                         }
1449                 }
1450                 gr_palette_load( gr_palette );
1451
1452                 gr_init_sub_canvas( &VR_editor_canvas, &grd_curscreen->sc_canvas, 0, 0, grd_curscreen->sc_w, grd_curscreen->sc_h );
1453                 Canv_editor = &VR_editor_canvas;
1454                 gr_init_sub_canvas( &VR_screen_pages[0], Canv_editor, 0, 0, Canv_editor->cv_w, Canv_editor->cv_h );
1455                 gr_init_sub_canvas( &VR_screen_pages[1], Canv_editor, 0, 0, Canv_editor->cv_w, Canv_editor->cv_h );
1456                 gr_set_current_canvas( Canv_editor );
1457                 init_editor_screen();   //setup other editor stuff
1458                 break;
1459         #endif
1460         default:
1461                 Error("Invalid screen mode %d",sm);
1462         }
1463
1464         VR_current_page = 0;
1465
1466         WINDOS(
1467                 dd_gr_set_current_canvas(&dd_VR_screen_pages[VR_current_page]),
1468                 gr_set_current_canvas( &VR_screen_pages[VR_current_page] )
1469         );
1470
1471         if ( VR_screen_flags&VRF_USE_PAGING )   {
1472         WINDOS(
1473                 dd_gr_flip(),
1474                 gr_show_canvas( &VR_screen_pages[VR_current_page] )
1475         );
1476         }
1477 #ifdef OGL
1478         ogl_set_screen_mode();
1479 #endif
1480
1481         return 1;
1482 }
1483
1484 int gr_toggle_fullscreen_game(void){
1485 #ifdef GR_SUPPORTS_FULLSCREEN_TOGGLE
1486         int i;
1487         hud_message(MSGC_GAME_FEEDBACK, "toggling fullscreen mode %s",(i=gr_toggle_fullscreen())?"on":"off" );
1488         //added 2000/06/19 Matthew Mueller - hack to fix "infinite toggle" problem
1489         //it seems to be that the screen mode change takes long enough that the key has already sent repeat codes, or that its unpress event gets dropped, etc.  This is a somewhat ugly fix, but it works.
1490 //      generic_key_handler(KEY_PADENTER,0);
1491         key_flush();
1492         //end addition -MM
1493         return i;
1494 #else
1495         hud_message(MSGC_GAME_FEEDBACK, "fullscreen toggle not supported by this target");
1496         return -1;
1497 #endif
1498 }
1499
1500 int arch_toggle_fullscreen_menu(void);
1501
1502 int gr_toggle_fullscreen_menu(void){
1503 #ifdef GR_SUPPORTS_FULLSCREEN_MENU_TOGGLE
1504         int i;
1505         i=arch_toggle_fullscreen_menu();
1506
1507 //      generic_key_handler(KEY_PADENTER,0);
1508         key_flush();
1509
1510         return i;
1511 #else
1512         return -1;
1513 #endif
1514 }
1515
1516 static int timer_paused=0;
1517
1518 void stop_time()
1519 {
1520         if (timer_paused==0) {
1521                 fix time;
1522                 time = timer_get_fixed_seconds();
1523                 last_timer_value = time - last_timer_value;
1524                 if (last_timer_value < 0) {
1525                         #if defined(TIMER_TEST) && !defined(NDEBUG)
1526                         Int3();         //get Matt!!!!
1527                         #endif
1528                         last_timer_value = 0;
1529                 }
1530                 #if defined(TIMER_TEST) && !defined(NDEBUG)
1531                 time_stopped = time;
1532                 #endif
1533         }
1534         timer_paused++;
1535
1536         #if defined(TIMER_TEST) && !defined(NDEBUG)
1537         stop_count++;
1538         #endif
1539 }
1540
1541 void start_time()
1542 {
1543         timer_paused--;
1544         Assert(timer_paused >= 0);
1545         if (timer_paused==0) {
1546                 fix time;
1547                 time = timer_get_fixed_seconds();
1548                 #if defined(TIMER_TEST) && !defined(NDEBUG)
1549                 if (last_timer_value < 0)
1550                         Int3();         //get Matt!!!!
1551                 }
1552                 #endif
1553                 last_timer_value = time - last_timer_value;
1554                 #if defined(TIMER_TEST) && !defined(NDEBUG)
1555                 time_started = time;
1556                 #endif
1557         }
1558
1559         #if defined(TIMER_TEST) && !defined(NDEBUG)
1560         start_count++;
1561         #endif
1562 }
1563
1564 MAC(extern ubyte joydefs_calibrating;)
1565
1566 void game_flush_inputs()
1567 {
1568         int dx,dy;
1569         key_flush();
1570         joy_flush();
1571         mouse_flush();
1572         #ifdef MACINTOSH
1573         if ( (Function_mode != FMODE_MENU) && !joydefs_calibrating )            // only reset mouse when not in menu or not calibrating
1574         #endif
1575                 mouse_get_delta( &dx, &dy );    // Read mouse
1576         memset(&Controls,0,sizeof(control_info));
1577 }
1578
1579 void reset_time()
1580 {
1581         last_timer_value = timer_get_fixed_seconds();
1582
1583 }
1584
1585 #ifndef RELEASE
1586 extern int Saving_movie_frames;
1587 int Movie_fixed_frametime;
1588 #else
1589 #define Saving_movie_frames     0
1590 #define Movie_fixed_frametime   0
1591 #endif
1592
1593 //added on 8/18/98 by Victor Rachels to add maximum framerate
1594 int maxfps = 80;
1595 //end this section
1596
1597 void calc_frame_time()
1598 {
1599         fix timer_value,last_frametime = FrameTime;
1600
1601         #if defined(TIMER_TEST) && !defined(NDEBUG)
1602         _last_frametime = last_frametime;
1603         #endif
1604
1605         timer_value = timer_get_fixed_seconds();
1606         FrameTime = timer_value - last_timer_value;
1607
1608         do {
1609             timer_value = timer_get_fixed_seconds();
1610             FrameTime = timer_value - last_timer_value;
1611             if (FrameTime < f1_0/maxfps);
1612                         timer_delay(1);
1613         } while (FrameTime < f1_0/maxfps);
1614
1615         #if defined(TIMER_TEST) && !defined(NDEBUG)
1616         _timer_value = timer_value;
1617         #endif
1618
1619         #ifndef NDEBUG
1620         if (!(((FrameTime > 0) && (FrameTime <= F1_0)) || (Function_mode == FMODE_EDITOR) || (Newdemo_state == ND_STATE_PLAYBACK))) {
1621                 mprintf((1,"Bad FrameTime - value = %x\n",FrameTime));
1622                 if (FrameTime == 0)
1623                         Int3(); //      Call Mike or Matt or John!  Your interrupts are probably trashed!
1624 //              if ( !dpmi_virtual_memory )
1625 //                      Int3();         //Get MATT if hit this!
1626         }
1627         #endif
1628
1629         #if defined(TIMER_TEST) && !defined(NDEBUG)
1630         actual_last_timer_value = last_timer_value;
1631         #endif
1632
1633         if ( Game_turbo_mode )
1634                 FrameTime *= 2;
1635
1636         // Limit frametime to be between 5 and 150 fps.
1637         RealFrameTime = FrameTime;
1638         if ( FrameTime < F1_0/150 ) FrameTime = F1_0/150;
1639         if ( FrameTime > F1_0/5 ) FrameTime = F1_0/5;
1640
1641         last_timer_value = timer_value;
1642
1643         if (FrameTime < 0)                                              //if bogus frametime...
1644                 FrameTime = last_frametime;             //...then use time from last frame
1645
1646         #ifndef NDEBUG
1647         if (fixed_frametime) FrameTime = fixed_frametime;
1648         #endif
1649
1650         #ifndef NDEBUG
1651         // Pause here!!!
1652         if ( Debug_pause )      {
1653                 int c;
1654                 c = 0;
1655                 while( c==0 )
1656                         c = key_peekkey();
1657
1658                 if ( c == KEY_P )       {
1659                         Debug_pause = 0;
1660                         c = key_inkey();
1661                 }
1662                 last_timer_value = timer_get_fixed_seconds();
1663         }
1664         #endif
1665
1666         #if Arcade_mode
1667                 FrameTime /= 2;
1668         #endif
1669
1670         #if defined(TIMER_TEST) && !defined(NDEBUG)
1671         stop_count = start_count = 0;
1672         #endif
1673
1674         //      Set value to determine whether homing missile can see target.
1675         //      The lower frametime is, the more likely that it can see its target.
1676         if (FrameTime <= F1_0/64)
1677                 Min_trackable_dot = MIN_TRACKABLE_DOT;  // -- 3*(F1_0 - MIN_TRACKABLE_DOT)/4 + MIN_TRACKABLE_DOT;
1678         else if (FrameTime < F1_0/32)
1679                 Min_trackable_dot = MIN_TRACKABLE_DOT + F1_0/64 - 2*FrameTime;  // -- fixmul(F1_0 - MIN_TRACKABLE_DOT, F1_0-4*FrameTime) + MIN_TRACKABLE_DOT;
1680         else if (FrameTime < F1_0/4)
1681                 Min_trackable_dot = MIN_TRACKABLE_DOT + F1_0/64 - F1_0/16 - FrameTime;  // -- fixmul(F1_0 - MIN_TRACKABLE_DOT, F1_0-4*FrameTime) + MIN_TRACKABLE_DOT;
1682         else
1683                 Min_trackable_dot = MIN_TRACKABLE_DOT + F1_0/64 - F1_0/8;
1684
1685 }
1686
1687 //--unused-- int Auto_flythrough=0;  //if set, start flythough automatically
1688
1689 void move_player_2_segment(segment *seg,int side)
1690 {
1691         vms_vector vp;
1692
1693         compute_segment_center(&ConsoleObject->pos,seg);
1694         compute_center_point_on_side(&vp,seg,side);
1695         vm_vec_sub2(&vp,&ConsoleObject->pos);
1696         vm_vector_2_matrix(&ConsoleObject->orient,&vp,NULL,NULL);
1697
1698         obj_relink( ConsoleObject-Objects, SEG_PTR_2_NUM(seg) );
1699
1700 }
1701
1702 #ifdef NETWORK
1703 void game_draw_time_left()
1704 {
1705         char temp_string[30];
1706         fix timevar;
1707         int i;
1708
1709         gr_set_curfont( GAME_FONT );    //GAME_FONT
1710         gr_set_fontcolor(gr_getcolor(0,63,0), -1 );
1711
1712         timevar=i2f (Netgame.PlayTimeAllowed*5*60);
1713         i=f2i(timevar-ThisLevelTime);
1714         i++;
1715
1716         sprintf( temp_string, "Time left: %d secs", i );
1717
1718         if (i>=0)
1719          gr_string(0, 32, temp_string );
1720 }
1721 #endif
1722
1723
1724 extern int Game_pause;
1725
1726 void do_photos();
1727 void level_with_floor();
1728
1729 void modex_clear_box(int x,int y,int w,int h)
1730 {
1731         grs_canvas *temp_canv,*save_canv;
1732
1733         save_canv = grd_curcanv;
1734         temp_canv = gr_create_canvas(w,h);
1735         gr_set_current_canvas(temp_canv);
1736         gr_clear_canvas(BM_XRGB(0,0,0));
1737         gr_set_current_canvas(save_canv);
1738         gr_bitmapm(x,y,&temp_canv->cv_bitmap);
1739         gr_free_canvas(temp_canv);
1740
1741 }
1742
1743 extern void modex_printf(int x,int y,char *s,grs_font *font,int color);
1744
1745 // mac routine to drop contents of screen to a pict file using copybits
1746 // save a PICT to a file
1747 #ifdef MACINTOSH
1748
1749 void SavePictScreen(int multiplayer)
1750 {
1751         OSErr err;
1752         int parid, i, count;
1753         char *pfilename, filename[50], buf[512], cwd[FILENAME_MAX];
1754         short fd;
1755         FSSpec spec;
1756         PicHandle pict_handle;
1757         static int multi_count = 0;
1758         StandardFileReply sf_reply;
1759
1760 // dump the contents of the GameWindow into a picture using copybits
1761
1762         pict_handle = OpenPicture(&GameWindow->portRect);
1763         if (pict_handle == NULL)
1764                 return;
1765
1766         CopyBits(&GameWindow->portBits, &GameWindow->portBits, &GameWindow->portRect, &GameWindow->portRect, srcBic, NULL);
1767         ClosePicture();
1768
1769 // get the cwd to restore with chdir when done -- this keeps the mac world sane
1770         if (!getcwd(cwd, FILENAME_MAX))
1771                 Int3();
1772 // create the fsspec
1773
1774         sprintf(filename, "screen%d", multi_count++);
1775         pfilename = c2pstr(filename);
1776         if (!multiplayer) {
1777                 show_cursor();
1778                 StandardPutFile("\pSave PICT as:", pfilename, &sf_reply);
1779                 if (!sf_reply.sfGood)
1780                         goto end;
1781                 memcpy( &spec, &(sf_reply.sfFile), sizeof(FSSpec) );
1782                 if (sf_reply.sfReplacing)
1783                         FSpDelete(&spec);
1784                 err = FSpCreate( &spec, 'ttxt', 'PICT', smSystemScript );
1785                 if (err)
1786                         goto end;
1787         } else {
1788 //              parid = GetAppDirId();
1789                 err = FSMakeFSSpec(0, 0, pfilename, &spec);
1790                 if (err == nsvErr)
1791                         goto end;
1792                 if (err != fnfErr)
1793                         FSpDelete(&spec);
1794                 err = FSpCreate(&spec, 'ttxt', 'PICT', smSystemScript);
1795                 if (err != 0)
1796                         goto end;
1797         }
1798
1799 // write the PICT file
1800         if ( FSpOpenDF(&spec, fsRdWrPerm, &fd) )
1801                 goto end;
1802         memset(buf, 0, sizeof(buf));
1803         count = 512;
1804         if ( FSWrite(fd, &count, buf) )
1805                 goto end;
1806         count = GetHandleSize((Handle)pict_handle);
1807         HLock((Handle)pict_handle);
1808         if ( FSWrite(fd, &count, *pict_handle) ) {
1809                 FSClose(fd);
1810                 FSpDelete(&spec);
1811         }
1812
1813 end:
1814         HUnlock((Handle)pict_handle);
1815         DisposeHandle((Handle)pict_handle);
1816         FSClose(fd);
1817         hide_cursor();
1818         chdir(cwd);
1819 }
1820
1821 #endif
1822
1823 //automap_flag is now unused, since we just check if the screen we're
1824 //writing to is modex
1825 //if called from automap, current canvas is set to visible screen
1826 #ifndef OGL
1827 void save_screen_shot(int automap_flag)
1828 {
1829 #if defined(WINDOWS)
1830         mprintf((0, "Doing screen shot thing.\n"));
1831         win95_save_pcx_shot();
1832
1833 #elif !defined(MACINTOSH)
1834         fix t1;
1835         char message[100];
1836         grs_canvas *screen_canv=&grd_curscreen->sc_canvas;
1837         grs_font *save_font;
1838         static int savenum=0;
1839         static int stereo_savenum=0;
1840         grs_canvas *temp_canv,*temp_canv2,*save_canv;
1841         char savename[FILENAME_LEN],savename2[FILENAME_LEN];
1842         ubyte pal[768];
1843         int w,h,aw,x,y;
1844         int modex_flag;
1845         int stereo=0;
1846
1847         temp_canv2=NULL;
1848
1849 //      // Can't do screen shots in VR modes.
1850 //      if ( VR_render_mode != VR_NONE )
1851 //              return;
1852
1853         stop_time();
1854
1855         save_canv = grd_curcanv;
1856
1857         if ( VR_render_mode != VR_NONE && !automap_flag && Function_mode==FMODE_GAME && Screen_mode==SCREEN_GAME)
1858                 stereo = 1;
1859
1860         if ( stereo ) {
1861                 temp_canv = gr_create_canvas(VR_render_buffer[0].cv_bitmap.bm_w,VR_render_buffer[0].cv_bitmap.bm_h);
1862                 gr_set_current_canvas(temp_canv);
1863                 gr_ubitmap(0,0,&VR_render_buffer[0].cv_bitmap);
1864
1865                 temp_canv2 = gr_create_canvas(VR_render_buffer[1].cv_bitmap.bm_w,VR_render_buffer[1].cv_bitmap.bm_h);
1866                 gr_set_current_canvas(temp_canv2);
1867                 gr_ubitmap(0,0,&VR_render_buffer[1].cv_bitmap);
1868         }
1869         else {
1870                 temp_canv = gr_create_canvas(screen_canv->cv_bitmap.bm_w,screen_canv->cv_bitmap.bm_h);
1871                 gr_set_current_canvas(temp_canv);
1872                 gr_ubitmap(0,0,&screen_canv->cv_bitmap);
1873         }
1874
1875         gr_set_current_canvas(save_canv);
1876
1877         if ( savenum > 99 ) savenum = 0;
1878         if ( stereo_savenum > 99 ) stereo_savenum = 0;
1879
1880         if ( stereo ) {
1881                 sprintf(savename,"left%02d.pcx",stereo_savenum);
1882                 sprintf(savename2,"right%02d.pcx",stereo_savenum);
1883                 if (VR_eye_switch) {char t[FILENAME_LEN]; strcpy(t,savename); strcpy(savename,savename2); strcpy(savename2,t);}
1884                 stereo_savenum++;
1885                 sprintf( message, "%s '%s' & '%s'", TXT_DUMPING_SCREEN, savename, savename2 );
1886         }
1887         else {
1888                 sprintf(savename,"screen%02d.pcx",savenum++);
1889                 sprintf( message, "%s '%s'", TXT_DUMPING_SCREEN, savename );
1890         }
1891
1892         if (!automap_flag)              //if from automap, curcanv is already visible canv
1893                 gr_set_current_canvas(NULL);
1894         modex_flag = (grd_curcanv->cv_bitmap.bm_type==BM_MODEX);
1895         if (!automap_flag && modex_flag)
1896                 gr_set_current_canvas(&VR_screen_pages[VR_current_page]);
1897
1898         save_font = grd_curcanv->cv_font;
1899         gr_set_curfont(GAME_FONT);
1900         gr_set_fontcolor(gr_find_closest_color_current(0,31,0),-1);
1901         gr_get_string_size(message,&w,&h,&aw);
1902
1903         if (modex_flag)
1904                 h *= 2;
1905
1906         //I changed how these coords were calculated for the high-res automap. -MT
1907         //x = (VR_screen_pages[VR_current_page].cv_w-w)/2;
1908         //y = (VR_screen_pages[VR_current_page].cv_h-h)/2;
1909         x = (grd_curcanv->cv_w-w)/2;
1910         y = (grd_curcanv->cv_h-h)/2;
1911
1912         if (modex_flag) {
1913                 modex_clear_box(x-2,y-2,w+4,h+4);
1914                 modex_printf(x, y, message,GAME_FONT,gr_find_closest_color_current(0,31,0));
1915         } else {
1916                 gr_setcolor(gr_find_closest_color_current(0,0,0));
1917                 gr_rect(x-2,y-2,x+w+2,y+h+2);
1918                 gr_printf(x,y,message);
1919                 gr_set_curfont(save_font);
1920         }
1921         t1 = timer_get_fixed_seconds() + F1_0;
1922
1923         gr_palette_read(pal);           //get actual palette from the hardware
1924         pcx_write_bitmap(savename,&temp_canv->cv_bitmap,pal);
1925         if ( stereo )
1926                 pcx_write_bitmap(savename2,&temp_canv2->cv_bitmap,pal);
1927
1928         while ( timer_get_fixed_seconds() < t1 );               // Wait so that messag stays up at least 1 second.
1929
1930         gr_set_current_canvas(screen_canv);
1931
1932         if (grd_curcanv->cv_bitmap.bm_type!=BM_MODEX && !stereo)
1933                 gr_ubitmap(0,0,&temp_canv->cv_bitmap);
1934
1935         gr_free_canvas(temp_canv);
1936         if ( stereo )
1937                 gr_free_canvas(temp_canv2);
1938
1939         gr_set_current_canvas(save_canv);
1940         key_flush();
1941         start_time();
1942
1943 #else
1944
1945         grs_canvas *screen_canv = &grd_curscreen->sc_canvas;
1946         grs_canvas *temp_canv, *save_canv;
1947
1948         // Can't do screen shots in VR modes.
1949         if ( VR_render_mode != VR_NONE )
1950                 return;
1951
1952         stop_time();
1953
1954         save_canv = grd_curcanv;
1955         temp_canv = gr_create_canvas( screen_canv->cv_bitmap.bm_w, screen_canv->cv_bitmap.bm_h );
1956         if (!temp_canv)
1957                 goto shot_done;
1958         gr_set_current_canvas( temp_canv );
1959         gr_ubitmap( 0, 0, &screen_canv->cv_bitmap );
1960         gr_set_current_canvas( &VR_screen_pages[VR_current_page] );
1961
1962         show_cursor();
1963         key_close();
1964         if (Game_mode & GM_MULTI)
1965                 SavePictScreen(1);
1966         else
1967                 SavePictScreen(0);
1968         key_init();
1969         hide_cursor();
1970
1971         gr_set_current_canvas(screen_canv);
1972
1973 //      if (!automap_flag)
1974                 gr_ubitmap( 0, 0, &temp_canv->cv_bitmap);
1975
1976         gr_free_canvas(temp_canv);
1977 shot_done:
1978         gr_set_current_canvas(save_canv);
1979         key_flush();
1980         start_time();
1981         #endif
1982 }
1983
1984 #endif
1985
1986 //initialize flying
1987 void fly_init(object *obj)
1988 {
1989         obj->control_type = CT_FLYING;
1990         obj->movement_type = MT_PHYSICS;
1991
1992         vm_vec_zero(&obj->mtype.phys_info.velocity);
1993         vm_vec_zero(&obj->mtype.phys_info.thrust);
1994         vm_vec_zero(&obj->mtype.phys_info.rotvel);
1995         vm_vec_zero(&obj->mtype.phys_info.rotthrust);
1996 }
1997
1998 //void morph_test(), morph_step();
1999
2000
2001 //      ------------------------------------------------------------------------------------
2002
2003 void test_anim_states();
2004
2005 #include "fvi.h"
2006
2007 //put up the help message
2008 void do_show_help()
2009 {
2010         show_help();
2011 }
2012
2013
2014 extern int been_in_editor;
2015
2016 //      ------------------------------------------------------------------------------------
2017 void do_cloak_stuff(void)
2018 {
2019         int i;
2020         for (i = 0; i < N_players; i++)
2021                 if (Players[i].flags & PLAYER_FLAGS_CLOAKED) {
2022                         // mprintf(0, "Cloak time left: %7.3f\n", f2fl(CLOAK_TIME_MAX - (GameTime - Players[Player_num].cloak_time)));
2023                         if (GameTime - Players[i].cloak_time > CLOAK_TIME_MAX) {
2024                                 Players[i].flags &= ~PLAYER_FLAGS_CLOAKED;
2025                                 if (i == Player_num) {
2026                                         digi_play_sample( SOUND_CLOAK_OFF, F1_0);
2027                                         #ifdef NETWORK
2028                                         if (Game_mode & GM_MULTI)
2029                                                 multi_send_play_sound(SOUND_CLOAK_OFF, F1_0);
2030                                         maybe_drop_net_powerup(POW_CLOAK);
2031                                         multi_send_decloak(); // For demo recording
2032                                         #endif
2033 //                                      mprintf((0, " --- You have been DE-CLOAKED! ---\n"));
2034                                 }
2035                         }
2036                 }
2037 }
2038
2039 int FakingInvul=0;
2040
2041 //      ------------------------------------------------------------------------------------
2042 void do_invulnerable_stuff(void)
2043 {
2044         if (Players[Player_num].flags & PLAYER_FLAGS_INVULNERABLE) {
2045                 if (GameTime - Players[Player_num].invulnerable_time > INVULNERABLE_TIME_MAX) {
2046                         Players[Player_num].flags ^= PLAYER_FLAGS_INVULNERABLE;
2047                         if (FakingInvul==0)
2048                         {
2049                                 digi_play_sample( SOUND_INVULNERABILITY_OFF, F1_0);
2050                                 #ifdef NETWORK
2051                                 if (Game_mode & GM_MULTI)
2052                                 {
2053                                         multi_send_play_sound(SOUND_INVULNERABILITY_OFF, F1_0);
2054                                         maybe_drop_net_powerup(POW_INVULNERABILITY);
2055                                 }
2056                                 #endif
2057                                 mprintf((0, " --- You have been DE-INVULNERABLEIZED! ---\n"));
2058                         }
2059                         FakingInvul=0;
2060                 }
2061         }
2062 }
2063
2064 ubyte   Last_afterburner_state = 0;
2065 fix Last_afterburner_charge = 0;
2066
2067 #define AFTERBURNER_LOOP_START  ((digi_sample_rate==SAMPLE_RATE_22K)?32027:(32027/2))           //20098
2068 #define AFTERBURNER_LOOP_END            ((digi_sample_rate==SAMPLE_RATE_22K)?48452:(48452/2))           //25776
2069
2070 int     Ab_scale = 4;
2071
2072 //@@//  ------------------------------------------------------------------------------------
2073 //@@void afterburner_shake(void)
2074 //@@{
2075 //@@    int     rx, rz;
2076 //@@
2077 //@@    rx = (Ab_scale * fixmul(d_rand() - 16384, F1_0/8 + (((GameTime + 0x4000)*4) & 0x3fff)))/16;
2078 //@@    rz = (Ab_scale * fixmul(d_rand() - 16384, F1_0/2 + ((GameTime*4) & 0xffff)))/16;
2079 //@@
2080 //@@    // -- mprintf((0, "AB: %8x %8x\n", rx, rz));
2081 //@@    ConsoleObject->mtype.phys_info.rotvel.x += rx;
2082 //@@    ConsoleObject->mtype.phys_info.rotvel.z += rz;
2083 //@@
2084 //@@}
2085
2086 //      ------------------------------------------------------------------------------------
2087 #ifdef NETWORK
2088 extern void multi_send_sound_function (char,char);
2089 #endif
2090
2091 void do_afterburner_stuff(void)
2092 {
2093    if (!(Players[Player_num].flags & PLAYER_FLAGS_AFTERBURNER))
2094                 Afterburner_charge=0;
2095
2096         if (Endlevel_sequence || Player_is_dead)
2097                 {
2098                  digi_kill_sound_linked_to_object( Players[Player_num].objnum);
2099 #ifdef NETWORK
2100                  multi_send_sound_function (0,0);
2101 #endif
2102                 }
2103
2104         if ((Controls.afterburner_state != Last_afterburner_state && Last_afterburner_charge) || (Last_afterburner_state && Last_afterburner_charge && !Afterburner_charge)) {
2105
2106                 if (Afterburner_charge && Controls.afterburner_state && (Players[Player_num].flags & PLAYER_FLAGS_AFTERBURNER)) {
2107                         digi_link_sound_to_object3( SOUND_AFTERBURNER_IGNITE, Players[Player_num].objnum, 1, F1_0, i2f(256), AFTERBURNER_LOOP_START, AFTERBURNER_LOOP_END );
2108 #ifdef NETWORK
2109                         if (Game_mode & GM_MULTI)
2110                                 multi_send_sound_function (3,SOUND_AFTERBURNER_IGNITE);
2111 #endif
2112                 } else {
2113                         digi_kill_sound_linked_to_object( Players[Player_num].objnum);
2114                         digi_link_sound_to_object2( SOUND_AFTERBURNER_PLAY, Players[Player_num].objnum, 0, F1_0, i2f(256));
2115 #ifdef NETWORK
2116                         if (Game_mode & GM_MULTI)
2117                                 multi_send_sound_function (0,0);
2118 #endif
2119                         mprintf((0,"Killing afterburner sound\n"));
2120                 }
2121         }
2122
2123         //@@if (Controls.afterburner_state && Afterburner_charge)
2124         //@@    afterburner_shake();
2125
2126         Last_afterburner_state = Controls.afterburner_state;
2127         Last_afterburner_charge = Afterburner_charge;
2128 }
2129
2130 // -- //        ------------------------------------------------------------------------------------
2131 // -- //        if energy < F1_0/2, recharge up to F1_0/2
2132 // -- void recharge_energy_frame(void)
2133 // -- {
2134 // --   if (Players[Player_num].energy < Weapon_info[0].energy_usage) {
2135 // --           Players[Player_num].energy += FrameTime/4;
2136 // --
2137 // --           if (Players[Player_num].energy > Weapon_info[0].energy_usage)
2138 // --                   Players[Player_num].energy = Weapon_info[0].energy_usage;
2139 // --   }
2140 // -- }
2141
2142 //      Amount to diminish guns towards normal, per second.
2143 #define DIMINISH_RATE   16              //      gots to be a power of 2, else change the code in diminish_palette_towards_normal
2144
2145 extern fix Flash_effect;
2146
2147  //adds to rgb values for palette flash
2148 void PALETTE_FLASH_ADD(int _dr,int _dg,int _db)
2149 {
2150         int     maxval;
2151
2152         PaletteRedAdd += _dr;
2153         PaletteGreenAdd += _dg;
2154         PaletteBlueAdd += _db;
2155
2156         // -- mprintf((0, "Palette add: %3i %3i %3i\n", PaletteRedAdd, PaletteGreenAdd, PaletteBlueAdd));
2157
2158         if (Flash_effect)
2159                 maxval = 60;
2160         else
2161                 maxval = MAX_PALETTE_ADD;
2162
2163         if (PaletteRedAdd > maxval)
2164                 PaletteRedAdd = maxval;
2165
2166         if (PaletteGreenAdd > maxval)
2167                 PaletteGreenAdd = maxval;
2168
2169         if (PaletteBlueAdd > maxval)
2170                 PaletteBlueAdd = maxval;
2171
2172         if (PaletteRedAdd < -maxval)
2173                 PaletteRedAdd = -maxval;
2174
2175         if (PaletteGreenAdd < -maxval)
2176                 PaletteGreenAdd = -maxval;
2177
2178         if (PaletteBlueAdd < -maxval)
2179                 PaletteBlueAdd = -maxval;
2180 }
2181
2182 fix     Time_flash_last_played;
2183
2184
2185 void game_palette_step_up( int r, int g, int b );
2186 //      ------------------------------------------------------------------------------------
2187 //      Diminish palette effects towards normal.
2188 void diminish_palette_towards_normal(void)
2189 {
2190         int     dec_amount = 0;
2191
2192         //      Diminish at DIMINISH_RATE units/second.
2193         //      For frame rates > DIMINISH_RATE Hz, use randomness to achieve this.
2194         if (FrameTime < F1_0/DIMINISH_RATE) {
2195                 if (d_rand() < FrameTime*DIMINISH_RATE/2)       //      Note: d_rand() is in 0..32767, and 8 Hz means decrement every frame
2196                         dec_amount = 1;
2197         } else {
2198                 dec_amount = f2i(FrameTime*DIMINISH_RATE);              // one second = DIMINISH_RATE counts
2199                 if (dec_amount == 0)
2200                         dec_amount++;                                           // make sure we decrement by something
2201         }
2202
2203         if (Flash_effect) {
2204                 int     force_do = 0;
2205
2206                 //      Part of hack system to force update of palette after exiting a menu.
2207                 if (Time_flash_last_played) {
2208                         force_do = 1;
2209                         PaletteRedAdd ^= 1;     //      Very Tricky!  In gr_palette_step_up, if all stepups same as last time, won't do anything!
2210                 }
2211
2212                 if ((Time_flash_last_played + F1_0/8 < GameTime) || (Time_flash_last_played > GameTime)) {
2213                         digi_play_sample( SOUND_CLOAK_OFF, Flash_effect/4);
2214                         Time_flash_last_played = GameTime;
2215                 }
2216
2217                 Flash_effect -= FrameTime;
2218                 if (Flash_effect < 0)
2219                         Flash_effect = 0;
2220
2221                 if (force_do || (d_rand() > 4096 )) {
2222         if ( (Newdemo_state==ND_STATE_RECORDING) && (PaletteRedAdd || PaletteGreenAdd || PaletteBlueAdd) )
2223                 newdemo_record_palette_effect(PaletteRedAdd, PaletteGreenAdd, PaletteBlueAdd);
2224
2225                         game_palette_step_up( PaletteRedAdd, PaletteGreenAdd, PaletteBlueAdd );
2226
2227                         return;
2228                 }
2229
2230         }
2231
2232         if (PaletteRedAdd > 0 ) { PaletteRedAdd -= dec_amount; if (PaletteRedAdd < 0 ) PaletteRedAdd = 0; }
2233         if (PaletteRedAdd < 0 ) { PaletteRedAdd += dec_amount; if (PaletteRedAdd > 0 ) PaletteRedAdd = 0; }
2234
2235         if (PaletteGreenAdd > 0 ) { PaletteGreenAdd -= dec_amount; if (PaletteGreenAdd < 0 ) PaletteGreenAdd = 0; }
2236         if (PaletteGreenAdd < 0 ) { PaletteGreenAdd += dec_amount; if (PaletteGreenAdd > 0 ) PaletteGreenAdd = 0; }
2237
2238         if (PaletteBlueAdd > 0 ) { PaletteBlueAdd -= dec_amount; if (PaletteBlueAdd < 0 ) PaletteBlueAdd = 0; }
2239         if (PaletteBlueAdd < 0 ) { PaletteBlueAdd += dec_amount; if (PaletteBlueAdd > 0 ) PaletteBlueAdd = 0; }
2240
2241         if ( (Newdemo_state==ND_STATE_RECORDING) && (PaletteRedAdd || PaletteGreenAdd || PaletteBlueAdd) )
2242                 newdemo_record_palette_effect(PaletteRedAdd, PaletteGreenAdd, PaletteBlueAdd);
2243
2244         game_palette_step_up( PaletteRedAdd, PaletteGreenAdd, PaletteBlueAdd );
2245
2246         //mprintf(0, "%2i %2i %2i\n", PaletteRedAdd, PaletteGreenAdd, PaletteBlueAdd);
2247 }
2248
2249 int     Redsave, Bluesave, Greensave;
2250
2251 void palette_save(void)
2252 {
2253         Redsave = PaletteRedAdd; Bluesave = PaletteBlueAdd; Greensave = PaletteGreenAdd;
2254 }
2255
2256 extern void gr_palette_step_up_vr( int r, int g, int b, int white, int black );
2257
2258 void game_palette_step_up( int r, int g, int b )
2259 {
2260         if ( VR_use_reg_code )  {
2261         #ifndef WINDOWS
2262 //              gr_palette_step_up_vr( r, g, b, VR_WHITE_INDEX, VR_BLACK_INDEX );
2263         #endif
2264         } else {
2265                 gr_palette_step_up( r, g, b );
2266         }
2267 }
2268
2269 void palette_restore(void)
2270 {
2271         PaletteRedAdd = Redsave; PaletteBlueAdd = Bluesave; PaletteGreenAdd = Greensave;
2272         game_palette_step_up( PaletteRedAdd, PaletteGreenAdd, PaletteBlueAdd );
2273
2274         //      Forces flash effect to fixup palette next frame.
2275         Time_flash_last_played = 0;
2276 }
2277
2278 extern void dead_player_frame(void);
2279
2280
2281 //      --------------------------------------------------------------------------------------------------
2282 int allowed_to_fire_laser(void)
2283 {
2284         if (Player_is_dead) {
2285                 Global_missile_firing_count = 0;
2286                 return 0;
2287         }
2288
2289         //      Make sure enough time has elapsed to fire laser, but if it looks like it will
2290         //      be a long while before laser can be fired, then there must be some mistake!
2291         if (Next_laser_fire_time > GameTime)
2292                 if (Next_laser_fire_time < GameTime + 2*F1_0)
2293                         return 0;
2294
2295         return 1;
2296 }
2297
2298 fix     Next_flare_fire_time = 0;
2299 #define FLARE_BIG_DELAY (F1_0*2)
2300
2301 int allowed_to_fire_flare(void)
2302 {
2303         if (Next_flare_fire_time > GameTime)
2304                 if (Next_flare_fire_time < GameTime + FLARE_BIG_DELAY)  //      In case time is bogus, never wait > 1 second.
2305                         return 0;
2306
2307         if (Players[Player_num].energy >= Weapon_info[FLARE_ID].energy_usage)
2308                 Next_flare_fire_time = GameTime + F1_0/4;
2309         else
2310                 Next_flare_fire_time = GameTime + FLARE_BIG_DELAY;
2311
2312         return 1;
2313 }
2314
2315 int allowed_to_fire_missile(void)
2316 {
2317 // mprintf(0, "Next fire = %7.3f, Cur time = %7.3f\n", f2fl(Next_missile_fire_time), f2fl(GameTime));
2318         //      Make sure enough time has elapsed to fire missile, but if it looks like it will
2319         //      be a long while before missile can be fired, then there must be some mistake!
2320         if (Next_missile_fire_time > GameTime)
2321                 if (Next_missile_fire_time < GameTime + 5*F1_0)
2322                         return 0;
2323
2324         return 1;
2325 }
2326
2327 void full_palette_save(void)
2328 {
2329         palette_save();
2330         apply_modified_palette();
2331         reset_palette_add();
2332         gr_palette_load( gr_palette );
2333 }
2334
2335 extern int Death_sequence_aborted;
2336 extern int newmenu_dotiny2( char * title, char * subtitle, int nitems, newmenu_item * item, void (*subfunction)(int nitems,newmenu_item * items, int * last_key, int citem) );
2337
2338 void show_help()
2339 {
2340         int nitems;
2341         newmenu_item m[25];
2342         #ifdef MACINTOSH
2343         char command_help[64], pixel_double_help[64], save_help[64], restore_help[64];
2344         #endif
2345
2346         m[ 0].type = NM_TYPE_TEXT; m[ 0].text = TXT_HELP_ESC;
2347         #ifndef MACINTOSH
2348         m[ 1].type = NM_TYPE_TEXT; m[ 1].text = TXT_HELP_ALT_F2;
2349         m[ 2].type = NM_TYPE_TEXT; m[ 2].text = TXT_HELP_ALT_F3;
2350         #else
2351         sprintf(save_help, "OPT-F2 (%c-s)\t Save Game", 133);
2352         sprintf(restore_help, "OPT-F3 (%c-o)\t Load Game", 133);
2353         m[ 1].type = NM_TYPE_TEXT; m[1].text = save_help;
2354         m[ 2].type = NM_TYPE_TEXT; m[2].text = restore_help;
2355         #endif
2356         m[ 3].type = NM_TYPE_TEXT; m[ 3].text = TXT_HELP_F2;
2357         m[ 4].type = NM_TYPE_TEXT; m[ 4].text = TXT_HELP_F3;
2358         m[ 5].type = NM_TYPE_TEXT; m[ 5].text = TXT_HELP_F4;
2359         m[ 6].type = NM_TYPE_TEXT; m[ 6].text = TXT_HELP_F5;
2360         #ifndef MACINTOSH
2361         m[ 7].type = NM_TYPE_TEXT; m[ 7].text = TXT_HELP_PAUSE;
2362         #else
2363         m[ 7].type = NM_TYPE_TEXT; m[ 7].text = "Pause (F15)\t  Pause";
2364         #endif
2365         m[ 8].type = NM_TYPE_TEXT; m[ 8].text = TXT_HELP_MINUSPLUS;
2366         #ifndef MACINTOSH
2367         m[ 9].type = NM_TYPE_TEXT; m[ 9].text = TXT_HELP_PRTSCN;
2368         #else
2369         m[ 9].type = NM_TYPE_TEXT; m[ 9].text = "printscrn (F13)\t  save screen shot";
2370         #endif
2371         m[10].type = NM_TYPE_TEXT; m[10].text = TXT_HELP_1TO5;
2372         m[11].type = NM_TYPE_TEXT; m[11].text = TXT_HELP_6TO10;
2373         m[12].type = NM_TYPE_TEXT; m[12].text = "Shift-F1\t  Cycle left window";
2374         m[13].type = NM_TYPE_TEXT; m[13].text = "Shift-F2\t  Cycle right window";
2375         m[14].type = NM_TYPE_TEXT; m[14].text = "Shift-F4\t  GuideBot menu";
2376         #ifndef MACINTOSH
2377         m[15].type = NM_TYPE_TEXT; m[15].text = "Alt-Shift-F4\t  Rename GuideBot";
2378         #else
2379         m[15].type = NM_TYPE_TEXT; m[15].text = "Opt-Shift-F4\t  Rename GuideBot";
2380         #endif
2381         m[16].type = NM_TYPE_TEXT; m[16].text = "Shift-F5\t  Drop primary";
2382         m[17].type = NM_TYPE_TEXT; m[17].text = "Shift-F6\t  Drop secondary";
2383         m[18].type = NM_TYPE_TEXT; m[18].text = "Shift-F7\t  Calibrate joystick";
2384         m[19].type = NM_TYPE_TEXT; m[19].text = "Shift-number\t  GuideBot commands";
2385         nitems = 20;
2386         #ifdef MACINTOSH
2387         sprintf(pixel_double_help, "%c-D\t  Toggle Pixel Double Mode", 133);
2388         m[20].type = NM_TYPE_TEXT; m[20].text = pixel_double_help;
2389         m[21].type = NM_TYPE_TEXT; m[21].text = "";
2390         sprintf(command_help, "(Use %c-# for F#. i.e. %c-1 for F1)", 133, 133);
2391         m[22].type = NM_TYPE_TEXT; m[22].text = command_help;
2392         nitems = 23;
2393         #endif
2394
2395         full_palette_save();
2396
2397         newmenu_dotiny2( NULL, TXT_KEYS, nitems, m, NULL );
2398
2399         palette_restore();
2400 }
2401
2402 //temp function until Matt cleans up game sequencing
2403 extern void temp_reset_stuff_on_level();
2404
2405 //deal with rear view - switch it on, or off, or whatever
2406 void check_rear_view()
2407 {
2408
2409         #define LEAVE_TIME 0x1000               //how long until we decide key is down  (Used to be 0x4000)
2410
2411         static int leave_mode;
2412         static fix entry_time;
2413
2414         if ( Controls.rear_view_down_count )    {               //key/button has gone down
2415
2416                 if (Rear_view) {
2417                         Rear_view = 0;
2418                         if (Cockpit_mode==CM_REAR_VIEW) {
2419                                 select_cockpit(Cockpit_mode_save);
2420                                 Cockpit_mode_save = -1;
2421                         }
2422                         if (Newdemo_state == ND_STATE_RECORDING)
2423                                 newdemo_record_restore_rearview();
2424                 }
2425                 else {
2426                         Rear_view = 1;
2427                         leave_mode = 0;         //means wait for another key
2428                         entry_time = timer_get_fixed_seconds();
2429                         if (Cockpit_mode == CM_FULL_COCKPIT) {
2430                                 Cockpit_mode_save = Cockpit_mode;
2431                                 select_cockpit(CM_REAR_VIEW);
2432                         }
2433                         if (Newdemo_state == ND_STATE_RECORDING)
2434                                 newdemo_record_rearview();
2435                 }
2436         }
2437         else
2438                 if (Controls.rear_view_down_state) {
2439
2440                         if (leave_mode==0 && (timer_get_fixed_seconds()-entry_time)>LEAVE_TIME)
2441                                 leave_mode = 1;
2442                 }
2443                 else {
2444
2445                         //@@if (leave_mode==1 && Cockpit_mode==CM_REAR_VIEW) {
2446
2447                         if (leave_mode==1 && Rear_view) {
2448                                 Rear_view = 0;
2449                                 if (Cockpit_mode==CM_REAR_VIEW) {
2450                                         select_cockpit(Cockpit_mode_save);
2451                                         Cockpit_mode_save = -1;
2452                                 }
2453                                 if (Newdemo_state == ND_STATE_RECORDING)
2454                                         newdemo_record_restore_rearview();
2455                         }
2456                 }
2457 }
2458
2459 void reset_rear_view(void)
2460 {
2461         if (Rear_view) {
2462                 if (Newdemo_state == ND_STATE_RECORDING)
2463                         newdemo_record_restore_rearview();
2464         }
2465
2466         Rear_view = 0;
2467
2468         if (!(Cockpit_mode == CM_FULL_COCKPIT || Cockpit_mode == CM_STATUS_BAR || Cockpit_mode == CM_FULL_SCREEN)) {
2469                 if (!(Cockpit_mode_save == CM_FULL_COCKPIT || Cockpit_mode_save == CM_STATUS_BAR || Cockpit_mode_save == CM_FULL_SCREEN))
2470                         Cockpit_mode_save = CM_FULL_COCKPIT;
2471                 select_cockpit(Cockpit_mode_save);
2472                 Cockpit_mode_save       = -1;
2473         }
2474
2475 }
2476
2477 int Automap_flag;
2478 int Config_menu_flag;
2479
2480 jmp_buf LeaveGame;
2481
2482 int Cheats_enabled=0;
2483
2484 extern int Laser_rapid_fire;
2485 extern void do_lunacy_on(), do_lunacy_off();
2486
2487 extern int Physics_cheat_flag,Robots_kill_robots_cheat;
2488 extern char BounceCheat,HomingCheat,OldHomingState[20];
2489 extern char AcidCheatOn,old_IntMethod, Monster_mode;
2490 extern int Buddy_dude_cheat;
2491
2492 //turns off active cheats
2493 void turn_cheats_off()
2494 {
2495         int i;
2496
2497         if (HomingCheat)
2498                 for (i=0;i<20;i++)
2499                         Weapon_info[i].homing_flag=OldHomingState[i];
2500
2501         if (AcidCheatOn)
2502         {
2503                 AcidCheatOn=0;
2504                 Interpolation_method=old_IntMethod;
2505         }
2506
2507         Buddy_dude_cheat = 0;
2508         BounceCheat=0;
2509    HomingCheat=0;
2510         do_lunacy_off();
2511         Laser_rapid_fire = 0;
2512         Physics_cheat_flag = 0;
2513         Monster_mode = 0;
2514         Robots_kill_robots_cheat=0;
2515         Robot_firing_enabled = 1;
2516 }
2517
2518 //turns off all cheats & resets cheater flag
2519 void game_disable_cheats()
2520 {
2521         turn_cheats_off();
2522         Cheats_enabled=0;
2523 }
2524
2525
2526 //      game_setup()
2527 // ----------------------------------------------------------------------------
2528
2529 void game_setup(void)
2530 {
2531         //@@int demo_playing=0;
2532         //@@int multi_game=0;
2533
2534         do_lunacy_on();         //      Copy values for insane into copy buffer in ai.c
2535         do_lunacy_off();                //      Restore true insane mode.
2536
2537         Game_aborted = 0;
2538         last_drawn_cockpit[0] = -1;                             // Force cockpit to redraw next time a frame renders.
2539         last_drawn_cockpit[1] = -1;                             // Force cockpit to redraw next time a frame renders.
2540         Endlevel_sequence = 0;
2541
2542         //@@if ( Newdemo_state == ND_STATE_PLAYBACK )
2543         //@@    demo_playing = 1;
2544         //@@if ( Game_mode & GM_MULTI )
2545         //@@    multi_game = 1;
2546
2547         set_screen_mode(SCREEN_GAME);
2548         reset_palette_add();
2549
2550         set_warn_func(game_show_warning);
2551
2552         init_cockpit();
2553         init_gauges();
2554         //digi_init_sounds();
2555
2556         //keyd_repeat = 0;                // Don't allow repeat in game
2557         keyd_repeat = 1;                // Do allow repeat in game
2558
2559 #if !defined(WINDOWS) && !defined(MACINTOSH)
2560         //_MARK_("start of game");
2561 #endif
2562
2563         #ifdef EDITOR
2564                 if (Segments[ConsoleObject->segnum].segnum == -1)      //segment no longer exists
2565                         obj_relink( ConsoleObject-Objects, SEG_PTR_2_NUM(Cursegp) );
2566
2567                 if (!check_obj_seg(ConsoleObject))
2568                         move_player_2_segment(Cursegp,Curside);
2569         #endif
2570
2571         Viewer = ConsoleObject;
2572         fly_init(ConsoleObject);
2573
2574         Game_suspended = 0;
2575
2576         reset_time();
2577         FrameTime = 0;                  //make first frame zero
2578
2579         #ifdef EDITOR
2580         if (Current_level_num == 0) {                   //not a real level
2581                 init_player_stats_game();
2582                 init_ai_objects();
2583         }
2584         #endif
2585
2586         fix_object_segs();
2587
2588         game_flush_inputs();
2589
2590 }
2591
2592
2593 #ifdef NETWORK
2594 extern char IWasKicked;
2595 #endif
2596
2597
2598 //      ------------------------------------------------------------------------------------
2599 //this function is the game.  called when game mode selected.  runs until
2600 //editor mode or exit selected
2601 void game()
2602 {
2603         game_setup();                                                           // Replaces what was here earlier.
2604                                                                                                         // Good for Windows Sake.
2605
2606 #ifdef MWPROFILE
2607         ProfilerSetStatus(1);
2608 #endif
2609
2610         if ( setjmp(LeaveGame)==0 )     {
2611                 while (1) {
2612                         int player_shields;
2613
2614                         // GAME LOOP!
2615                         Automap_flag = 0;
2616                         Config_menu_flag = 0;
2617
2618                         if ( ConsoleObject != &Objects[Players[Player_num].objnum] )
2619                           {
2620                             mprintf ((0,"Player_num=%d objnum=%d",Player_num,Players[Player_num].objnum));
2621                             //Assert( ConsoleObject == &Objects[Players[Player_num].objnum] );
2622                           }
2623
2624                         player_shields = Players[Player_num].shields;
2625
2626                 #ifdef WINDOWS
2627                 {
2628                         MSG msg;
2629                         DoMessageStuff(&msg);           // Do Windows event handling.
2630                         if (_RedrawScreen) {
2631                                 _RedrawScreen = FALSE;
2632                                 load_palette(Current_level_palette,1,1);
2633                                 gr_palette_load(gr_palette);
2634                         }
2635                 }
2636                 #endif
2637
2638                         ExtGameStatus=GAMESTAT_RUNNING;
2639                         GameLoop( 1, 1 );               // Do game loop with rendering and reading controls.
2640
2641                         //if the player is taking damage, give up guided missile control
2642                         if (Players[Player_num].shields != player_shields)
2643                                 release_guided_missile(Player_num);
2644
2645                         //see if redbook song needs to be restarted
2646                         songs_check_redbook_repeat();   // Handle RedBook Audio Repeating.
2647
2648                         if (Config_menu_flag)   {
2649                                 int double_save = Scanline_double;
2650
2651                                 //WIN(mouse_set_mode(0));
2652                                 if (!(Game_mode&GM_MULTI)) {palette_save(); reset_palette_add();        apply_modified_palette(); gr_palette_load( gr_palette ); }
2653                                 do_options_menu();
2654                                 if (Scanline_double != double_save)     init_cockpit();
2655                                 if (!(Game_mode&GM_MULTI)) palette_restore();
2656                                 //WIN(mouse_set_mode(1));
2657                         }
2658
2659                         if (Automap_flag) {
2660                                 int save_w=Game_window_w,save_h=Game_window_h;
2661                                 do_automap(0);
2662                                 Screen_mode=-1; set_screen_mode(SCREEN_GAME);
2663                                 Game_window_w=save_w; Game_window_h=save_h;
2664                                 init_cockpit();
2665                                 last_drawn_cockpit[0] = -1;
2666                                 last_drawn_cockpit[1] = -1;
2667                         }
2668
2669                         if ( (Function_mode != FMODE_GAME) && Auto_demo && (Newdemo_state != ND_STATE_NORMAL) ) {
2670                                 int choice, fmode;
2671                                 fmode = Function_mode;
2672                                 Function_mode = FMODE_GAME;
2673                                 palette_save();
2674                                 apply_modified_palette();
2675                                 reset_palette_add();
2676                                 gr_palette_load( gr_palette );
2677                                 choice=nm_messagebox( NULL, 2, TXT_YES, TXT_NO, TXT_ABORT_AUTODEMO );
2678                                 palette_restore();
2679                                 Function_mode = fmode;
2680                                 if (choice==0)  {
2681                                         Auto_demo = 0;
2682                                         newdemo_stop_playback();
2683                                         Function_mode = FMODE_MENU;
2684                                 } else {
2685                                         Function_mode = FMODE_GAME;
2686                                 }
2687                         }
2688
2689                         if ( (Function_mode != FMODE_GAME ) && (Newdemo_state != ND_STATE_PLAYBACK ) && (Function_mode!=FMODE_EDITOR)
2690 #ifdef NETWORK
2691                                         && !IWasKicked
2692 #endif
2693                            )            {
2694                                 int choice, fmode;
2695                                 fmode = Function_mode;
2696                                 Function_mode = FMODE_GAME;
2697                                 palette_save();
2698                                 apply_modified_palette();
2699                                 reset_palette_add();
2700                                 gr_palette_load( gr_palette );
2701                                 ExtGameStatus=GAMESTAT_ABORT_GAME;
2702                                 choice=nm_messagebox( NULL, 2, TXT_YES, TXT_NO, TXT_ABORT_GAME );
2703                                 palette_restore();
2704                                 Function_mode = fmode;
2705                                 if (choice != 0)
2706                                         Function_mode = FMODE_GAME;
2707                         }
2708
2709 #ifdef NETWORK
2710                         IWasKicked=0;
2711 #endif
2712                         if (Function_mode != FMODE_GAME)
2713                                 longjmp(LeaveGame,0);
2714
2715                         #ifdef APPLE_DEMO
2716                         if ( (keyd_time_when_last_pressed + (F1_0 * 60)) < timer_get_fixed_seconds() )          // idle in game for 1 minutes means exit
2717                                 longjmp(LeaveGame,0);
2718                         #endif
2719                 }
2720         }
2721
2722 #ifdef MWPROFILE
2723         ProfilerSetStatus(0);
2724 #endif
2725
2726         digi_stop_all();
2727
2728         if ( (Newdemo_state == ND_STATE_RECORDING) || (Newdemo_state == ND_STATE_PAUSED) )
2729                 newdemo_stop_recording();
2730
2731         #ifdef NETWORK
2732         multi_leave_game();
2733         #endif
2734
2735         if ( Newdemo_state == ND_STATE_PLAYBACK )
2736                 newdemo_stop_playback();
2737
2738    if (Cockpit_mode_save!=-1)
2739          {
2740                 Cockpit_mode=Cockpit_mode_save;
2741                 Cockpit_mode_save=-1;
2742          }
2743
2744         if (Function_mode != FMODE_EDITOR)
2745                 gr_palette_fade_out(gr_palette,32,0);                   // Fade out before going to menu
2746
2747 //@@    if ( (!demo_playing) && (!multi_game) && (Function_mode != FMODE_EDITOR))       {
2748 //@@            scores_maybe_add_player(Game_aborted);
2749 //@@    }
2750
2751 #if !defined(WINDOWS) && !defined(MACINTOSH)
2752         //_MARK_("end of game");
2753 #endif
2754
2755         clear_warn_func(game_show_warning);     //don't use this func anymore
2756
2757         game_disable_cheats();
2758
2759         #ifdef APPLE_DEMO
2760         Function_mode = FMODE_EXIT;             // get out of game in Apple OEM version
2761         #endif
2762 }
2763
2764 //called at the end of the program
2765 void close_game()
2766 {
2767 #ifdef WINDOWS
2768         if (dd_VR_offscreen_buffer) {
2769                 if (dd_grd_backcanv != dd_VR_offscreen_buffer) {
2770                         dd_gr_free_canvas(dd_VR_offscreen_buffer);
2771                 }
2772                 dd_VR_offscreen_buffer = NULL;
2773                 VR_offscreen_buffer = NULL;
2774         }
2775 #else
2776         if (VR_offscreen_buffer)        {
2777                 gr_free_canvas(VR_offscreen_buffer);
2778                 VR_offscreen_buffer = NULL;
2779         }
2780 #endif
2781
2782         close_gauge_canvases();
2783
2784         restore_effect_bitmap_icons();
2785
2786 #if !defined(MACINTOSH) && !defined(WINDOWS)
2787         if (Game_cockpit_copy_code)     {
2788                 d_free(Game_cockpit_copy_code);
2789                 Game_cockpit_copy_code = NULL;
2790         }
2791 #else
2792         if (Game_cockpit_copy_code)
2793                 Game_cockpit_copy_code = 0;
2794 #endif
2795
2796         if (background_bitmap.bm_data)
2797                 d_free(background_bitmap.bm_data);
2798
2799         clear_warn_func(game_show_warning);     //don't use this func anymore
2800 }
2801
2802 #ifdef WINDOWS
2803 dd_grs_canvas * get_current_game_screen()
2804 {
2805         return &dd_VR_screen_pages[VR_current_page];
2806 }
2807
2808 #else
2809
2810 grs_canvas * get_current_game_screen()
2811 {
2812         return &VR_screen_pages[VR_current_page];
2813 }
2814 #endif
2815
2816
2817 extern void kconfig_center_headset();
2818
2819
2820 #ifndef NDEBUG
2821 void    speedtest_frame(void);
2822 int     Debug_slowdown=0;
2823 #endif
2824
2825 #ifdef EDITOR
2826 extern void player_follow_path(object *objp);
2827 extern void check_create_player_path(void);
2828
2829 #endif
2830
2831 extern  int     Do_appearance_effect;
2832
2833 object *Missile_viewer=NULL;
2834
2835 int Missile_view_enabled = 1;
2836
2837 int Marker_viewer_num[2]={-1,-1};
2838 int Coop_view_player[2]={-1,-1};
2839 int Cockpit_3d_view[2]={CV_NONE,CV_NONE};
2840
2841 //returns ptr to escort robot, or NULL
2842 object *find_escort()
2843 {
2844         int i;
2845
2846         for (i=0; i<=Highest_object_index; i++)
2847                 if (Objects[i].type == OBJ_ROBOT)
2848                         if (Robot_info[Objects[i].id].companion)
2849                                 return &Objects[i];
2850
2851         return NULL;
2852 }
2853
2854 extern void process_super_mines_frame(void);
2855 extern void do_seismic_stuff(void);
2856
2857 #ifndef RELEASE
2858 int Saving_movie_frames=0;
2859 int __Movie_frame_num=0;
2860
2861 #define MAX_MOVIE_BUFFER_FRAMES 250
2862 #define MOVIE_FRAME_SIZE        (320 * 200)
2863
2864 ubyte *Movie_frame_buffer;
2865 int Movie_frame_counter;
2866 ubyte Movie_pal[768];
2867 char movie_path[50] = ".\\";
2868
2869 grs_bitmap Movie_bm;
2870
2871 void flush_movie_buffer()
2872 {
2873         char savename[128];
2874         int f;
2875
2876         stop_time();
2877
2878         mprintf((0,"Flushing movie buffer..."));
2879
2880         Movie_bm.bm_data = Movie_frame_buffer;
2881
2882         for (f=0;f<Movie_frame_counter;f++) {
2883                 sprintf(savename, "%sfrm%04d.pcx",movie_path,__Movie_frame_num);
2884                 __Movie_frame_num++;
2885                 pcx_write_bitmap(savename,&Movie_bm,Movie_pal);
2886                 Movie_bm.bm_data += MOVIE_FRAME_SIZE;
2887
2888                 if (f % 5 == 0)
2889                         mprintf((0,"%3d/%3d\10\10\10\10\10\10\10",f,Movie_frame_counter));
2890         }
2891
2892         Movie_frame_counter=0;
2893
2894         mprintf((0,"done   \n"));
2895
2896         start_time();
2897 }
2898
2899 void toggle_movie_saving()
2900 {
2901         int exit;
2902
2903         Saving_movie_frames = !Saving_movie_frames;
2904
2905         if (Saving_movie_frames) {
2906                 newmenu_item m[1];
2907
2908                 m[0].type=NM_TYPE_INPUT; m[0].text_len = 50; m[0].text = movie_path;
2909                 exit = newmenu_do( NULL, "Directory for movie frames?" , 1, &(m[0]), NULL );
2910
2911                 if (exit==-1) {
2912                         Saving_movie_frames = 0;
2913                         return;
2914                 }
2915
2916                 while (isspace(movie_path[strlen(movie_path)-1]))
2917                         movie_path[strlen(movie_path)-1] = 0;
2918                 if (movie_path[strlen(movie_path)-1]!='\\' && movie_path[strlen(movie_path)-1]!=':')
2919                         strcat(movie_path,"\\");
2920
2921
2922                 if (!Movie_frame_buffer) {
2923                         Movie_frame_buffer = d_malloc(MAX_MOVIE_BUFFER_FRAMES * MOVIE_FRAME_SIZE);
2924                         if (!Movie_frame_buffer) {
2925                                 Int3();
2926                                 Saving_movie_frames=0;
2927                         }
2928
2929                         Movie_frame_counter=0;
2930
2931                         Movie_bm.bm_x = Movie_bm.bm_y = 0;
2932                         Movie_bm.bm_w = 320;
2933                         Movie_bm.bm_h = 200;
2934                         Movie_bm.bm_type = BM_LINEAR;
2935                         Movie_bm.bm_flags = 0;
2936                         Movie_bm.bm_rowsize = 320;
2937                         Movie_bm.bm_handle = 0;
2938
2939                         gr_palette_read(Movie_pal);             //get actual palette from the hardware
2940
2941                         if (Newdemo_state == ND_STATE_PLAYBACK)
2942                                 Newdemo_do_interpolate = 0;
2943                 }
2944         }
2945         else {
2946                 flush_movie_buffer();
2947
2948                 if (Newdemo_state == ND_STATE_PLAYBACK)
2949                         Newdemo_do_interpolate = 1;
2950         }
2951
2952 }
2953
2954 void save_movie_frame()
2955 {
2956         memcpy(Movie_frame_buffer+Movie_frame_counter*MOVIE_FRAME_SIZE,grd_curscreen->sc_canvas.cv_bitmap.bm_data,MOVIE_FRAME_SIZE);
2957
2958         Movie_frame_counter++;
2959
2960         if (Movie_frame_counter == MAX_MOVIE_BUFFER_FRAMES)
2961                 flush_movie_buffer();
2962
2963 }
2964
2965 #endif
2966
2967 extern int Level_shake_duration;
2968
2969 //if water or fire level, make occasional sound
2970 void do_ambient_sounds()
2971 {
2972         int has_water,has_lava;
2973         int sound;
2974
2975         has_lava = (Segment2s[ConsoleObject->segnum].s2_flags & S2F_AMBIENT_LAVA);
2976         has_water = (Segment2s[ConsoleObject->segnum].s2_flags & S2F_AMBIENT_WATER);
2977
2978         if (has_lava) {                                                 //has lava
2979                 sound = SOUND_AMBIENT_LAVA;
2980                 if (has_water && (d_rand() & 1))        //both, pick one
2981                         sound = SOUND_AMBIENT_WATER;
2982         }
2983         else if (has_water)                                             //just water
2984                 sound = SOUND_AMBIENT_WATER;
2985         else
2986                 return;
2987
2988         if (((d_rand() << 3) < FrameTime)) {                                            //play the sound
2989                 fix volume = d_rand() + f1_0/2;
2990                 digi_play_sample(sound,volume);
2991         }
2992 }
2993
2994 // -- extern void lightning_frame(void);
2995
2996 void game_render_frame();
2997 extern void omega_charge_frame(void);
2998
2999 extern time_t t_current_time, t_saved_time;
3000
3001 void flicker_lights();
3002
3003 void GameLoop(int RenderFlag, int ReadControlsFlag )
3004 {
3005         #ifndef NDEBUG
3006         //      Used to slow down frame rate for testing things.
3007         //      RenderFlag = 1; // DEBUG
3008         if (Debug_slowdown) {
3009                 int     h, i, j=0;
3010
3011                 for (h=0; h<Debug_slowdown; h++)
3012                         for (i=0; i<1000; i++)
3013                                 j += i;
3014         }
3015         #endif
3016
3017         #ifdef WINDOWS
3018         {
3019                 static int desc_dead_countdown=100;   /*  used if player shouldn't be playing */
3020
3021                 if (desc_id_exit_num) {                          // are we supposed to be checking
3022                         if (!(--desc_dead_countdown)) {// if so, at zero, then pull the plug
3023                                 char time_str[32], time_str2[32];
3024
3025                                 _ctime(&t_saved_time, time_str);
3026                                 _ctime(&t_current_time, time_str2);
3027
3028                                 Error ("EXPIRES %s.  YOUR TIME %s.\n", time_str, time_str2);
3029                                 Error ("Loading overlay -- error number: %d\n", (int)desc_id_exit_num);
3030                         }
3031                 }
3032         }
3033         #endif
3034
3035                 #ifndef RELEASE
3036                 if (FindArg("-invulnerability"))
3037                         Players[Player_num].flags |= PLAYER_FLAGS_INVULNERABLE;
3038                 #endif
3039
3040
3041                 update_player_stats();
3042                 diminish_palette_towards_normal();              //      Should leave palette effect up for as long as possible by putting right before render.
3043                 do_afterburner_stuff();
3044                 do_cloak_stuff();
3045                 do_invulnerable_stuff();
3046                 remove_obsolete_stuck_objects();
3047                 init_ai_frame();
3048                 do_final_boss_frame();
3049                 // -- lightning_frame();
3050                 // -- recharge_energy_frame();
3051
3052                 if ((Players[Player_num].flags & PLAYER_FLAGS_HEADLIGHT) && (Players[Player_num].flags & PLAYER_FLAGS_HEADLIGHT_ON)) {
3053                         static int turned_off=0;
3054                         Players[Player_num].energy -= (FrameTime*3/8);
3055                         if (Players[Player_num].energy < i2f(10)) {
3056                                 if (!turned_off) {
3057                                         Players[Player_num].flags &= ~PLAYER_FLAGS_HEADLIGHT_ON;
3058                                         turned_off = 1;
3059 #ifdef NETWORK
3060                                         if (Game_mode & GM_MULTI)
3061                                                 multi_send_flags(Player_num);
3062 #endif
3063                                 }
3064                         }
3065                         else
3066                                 turned_off = 0;
3067
3068                         if (Players[Player_num].energy <= 0) {
3069                                 Players[Player_num].energy = 0;
3070                                 Players[Player_num].flags &= ~PLAYER_FLAGS_HEADLIGHT_ON;
3071 #ifdef NETWORK
3072                                 if (Game_mode & GM_MULTI)
3073                                         multi_send_flags(Player_num);
3074 #endif
3075                         }
3076                 }
3077
3078
3079                 #ifdef EDITOR
3080                 check_create_player_path();
3081                 player_follow_path(ConsoleObject);
3082                 #endif
3083
3084                 #ifdef NETWORK
3085                 if (Game_mode & GM_MULTI)
3086         {
3087          multi_do_frame();
3088          if (Netgame.PlayTimeAllowed && ThisLevelTime>=i2f((Netgame.PlayTimeAllowed*5*60)))
3089              multi_check_for_killgoal_winner();
3090         }
3091
3092                 #endif
3093
3094                 if (RenderFlag) {
3095                         if (force_cockpit_redraw) {                     //screen need redrawing?
3096                                 init_cockpit();
3097                                 force_cockpit_redraw=0;
3098                         }
3099                         game_render_frame();
3100                         //show_extra_views();           //missile view, buddy bot, etc.
3101
3102                         #ifndef RELEASE
3103                         if (Saving_movie_frames)
3104                                 save_movie_frame();
3105                         #endif
3106
3107                 }
3108
3109
3110                 //mprintf(0,"Velocity %2.2f\n", f2fl(vm_vec_mag(&ConsoleObject->phys_info.velocity)));
3111
3112                 calc_frame_time();
3113
3114                 dead_player_frame();
3115                 if (Newdemo_state != ND_STATE_PLAYBACK)
3116                         do_controlcen_dead_frame();
3117
3118                 process_super_mines_frame();
3119                 do_seismic_stuff();
3120                 do_ambient_sounds();
3121
3122                 #ifndef NDEBUG
3123                 if (Speedtest_on)
3124                         speedtest_frame();
3125                 #endif
3126
3127                 if (ReadControlsFlag)
3128                         ReadControls();
3129                 else
3130                         memset(&Controls, 0, sizeof(Controls));
3131
3132                 GameTime += FrameTime;
3133
3134                 if (f2i(GameTime)/10 != f2i(GameTime-FrameTime)/10)
3135                         mprintf((0,"Gametime = %d secs\n",f2i(GameTime)));
3136
3137                 if (GameTime < 0 || GameTime > i2f(0x7fff - 600)) {
3138                         GameTime = FrameTime;   //wrap when goes negative, or gets within 10 minutes
3139                         mprintf((0,"GameTime reset to 0\n"));
3140                 }
3141
3142                 #ifndef NDEBUG
3143                 if (FindArg("-checktime") != 0)
3144                         if (GameTime >= i2f(600))               //wrap after 10 minutes
3145                                 GameTime = FrameTime;
3146                 #endif
3147
3148 #ifdef NETWORK
3149       if ((Game_mode & GM_MULTI) && Netgame.PlayTimeAllowed)
3150           ThisLevelTime +=FrameTime;
3151 #endif
3152
3153                 digi_sync_sounds();
3154
3155                 if (Endlevel_sequence) {
3156                         do_endlevel_frame();
3157                         powerup_grab_cheat_all();
3158                         do_special_effects();
3159                         return;                                 //skip everything else
3160                 }
3161
3162                 if (Newdemo_state != ND_STATE_PLAYBACK)
3163                         do_exploding_wall_frame();
3164                 if ((Newdemo_state != ND_STATE_PLAYBACK) || (Newdemo_vcr_state != ND_STATE_PAUSED)) {
3165                         do_special_effects();
3166                         wall_frame_process();
3167                         triggers_frame_process();
3168                 }
3169
3170
3171                 if (Control_center_destroyed)   {
3172                         if (Newdemo_state==ND_STATE_RECORDING )
3173                                 newdemo_record_control_center_destroyed();
3174                 }
3175
3176                 flash_frame();
3177
3178                 if ( Newdemo_state == ND_STATE_PLAYBACK )       {
3179                         newdemo_playback_one_frame();
3180                         if ( Newdemo_state != ND_STATE_PLAYBACK )               {
3181                                 longjmp( LeaveGame, 0 );                // Go back to menu
3182                         }
3183                 } else
3184                 { // Note the link to above!
3185
3186                         Players[Player_num].homing_object_dist = -1;            //      Assume not being tracked.  Laser_do_weapon_sequence modifies this.
3187
3188                         object_move_all();
3189                         powerup_grab_cheat_all();
3190
3191                         if (Endlevel_sequence)  //might have been started during move
3192                                 return;
3193
3194                         fuelcen_update_all();
3195
3196                         do_ai_frame_all();
3197
3198                         if (allowed_to_fire_laser())
3199                                 FireLaser();                            // Fire Laser!
3200
3201                         if (Auto_fire_fusion_cannon_time) {
3202                                 if (Primary_weapon != FUSION_INDEX)
3203                                         Auto_fire_fusion_cannon_time = 0;
3204                                 else if (GameTime + FrameTime/2 >= Auto_fire_fusion_cannon_time) {
3205                                         Auto_fire_fusion_cannon_time = 0;
3206                                         Global_laser_firing_count = 1;
3207                                 } else {
3208                                         vms_vector      rand_vec;
3209                                         fix                     bump_amount;
3210
3211                                         Global_laser_firing_count = 0;
3212
3213                                         ConsoleObject->mtype.phys_info.rotvel.x += (d_rand() - 16384)/8;
3214                                         ConsoleObject->mtype.phys_info.rotvel.z += (d_rand() - 16384)/8;
3215                                         make_random_vector(&rand_vec);
3216
3217                                         bump_amount = F1_0*4;
3218
3219                                         if (Fusion_charge > F1_0*2)
3220                                                 bump_amount = Fusion_charge*4;
3221
3222                                         bump_one_object(ConsoleObject, &rand_vec, bump_amount);
3223                                 }
3224                         }
3225
3226                         if (Global_laser_firing_count) {
3227                                 //      Don't cap here, gets capped in Laser_create_new and is based on whether in multiplayer mode, MK, 3/27/95
3228                                 // if (Fusion_charge > F1_0*2)
3229                                 //      Fusion_charge = F1_0*2;
3230                                 Global_laser_firing_count -= do_laser_firing_player();  //do_laser_firing(Players[Player_num].objnum, Primary_weapon);
3231                         }
3232
3233                         if (Global_laser_firing_count < 0)
3234                                 Global_laser_firing_count = 0;
3235                 }
3236
3237         if (Do_appearance_effect) {
3238                 create_player_appearance_effect(ConsoleObject);
3239                 Do_appearance_effect = 0;
3240 #ifdef NETWORK
3241                 if ((Game_mode & GM_MULTI) && Netgame.invul)
3242                 {
3243                         Players[Player_num].flags |= PLAYER_FLAGS_INVULNERABLE;
3244                         Players[Player_num].invulnerable_time = GameTime-i2f(27);
3245                         FakingInvul=1;
3246                 }
3247 #endif
3248
3249         }
3250
3251         omega_charge_frame();
3252         slide_textures();
3253         flicker_lights();
3254
3255         //!!hoard_light_pulse();                //do cool hoard light pulsing
3256
3257 }
3258
3259 //!!extern int Goal_blue_segnum,Goal_red_segnum;
3260 //!!extern int Hoard_goal_eclip;
3261 //!!
3262 //!!//do cool pulsing lights in hoard goals
3263 //!!hoard_light_pulse()
3264 //!!{
3265 //!!    if (Game_mode & GM_HOARD) {
3266 //!!            fix light;
3267 //!!            int frame;
3268 //!!
3269 //!!            frame = Effects[Hoard_goal_eclip].frame_count;
3270 //!!
3271 //!!            frame++;
3272 //!!
3273 //!!            if (frame >= Effects[Hoard_goal_eclip].vc.num_frames)
3274 //!!                    frame = 0;
3275 //!!
3276 //!!            light = abs(frame - 5) * f1_0 / 5;
3277 //!!
3278 //!!            Segment2s[Goal_red_segnum].static_light = Segment2s[Goal_blue_segnum].static_light = light;
3279 //!!    }
3280 //!!}
3281
3282
3283 ubyte   Slide_segs[MAX_SEGMENTS];
3284 int     Slide_segs_computed;
3285
3286 void compute_slide_segs(void)
3287 {
3288         int     segnum, sidenum;
3289
3290         for (segnum=0;segnum<=Highest_segment_index;segnum++) {
3291                 Slide_segs[segnum] = 0;
3292                 for (sidenum=0;sidenum<6;sidenum++) {
3293                         int tmn = Segments[segnum].sides[sidenum].tmap_num;
3294                         if (TmapInfo[tmn].slide_u != 0 || TmapInfo[tmn].slide_v != 0)
3295                                 Slide_segs[segnum] |= 1 << sidenum;
3296                 }
3297         }
3298
3299         Slide_segs_computed = 1;
3300 }
3301
3302 //      -----------------------------------------------------------------------------
3303 void slide_textures(void)
3304 {
3305         int segnum,sidenum,i;
3306
3307         if (!Slide_segs_computed)
3308                 compute_slide_segs();
3309
3310         for (segnum=0;segnum<=Highest_segment_index;segnum++) {
3311                 if (Slide_segs[segnum]) {
3312                         for (sidenum=0;sidenum<6;sidenum++) {
3313                                 if (Slide_segs[segnum] & (1 << sidenum)) {
3314                                         int tmn = Segments[segnum].sides[sidenum].tmap_num;
3315                                         if (TmapInfo[tmn].slide_u != 0 || TmapInfo[tmn].slide_v != 0) {
3316                                                 for (i=0;i<4;i++) {
3317                                                         Segments[segnum].sides[sidenum].uvls[i].u += fixmul(FrameTime,TmapInfo[tmn].slide_u<<8);
3318                                                         Segments[segnum].sides[sidenum].uvls[i].v += fixmul(FrameTime,TmapInfo[tmn].slide_v<<8);
3319                                                         if (Segments[segnum].sides[sidenum].uvls[i].u > f2_0) {
3320                                                                 int j;
3321                                                                 for (j=0;j<4;j++)
3322                                                                         Segments[segnum].sides[sidenum].uvls[j].u -= f1_0;
3323                                                         }
3324                                                         if (Segments[segnum].sides[sidenum].uvls[i].v > f2_0) {
3325                                                                 int j;
3326                                                                 for (j=0;j<4;j++)
3327                                                                         Segments[segnum].sides[sidenum].uvls[j].v -= f1_0;
3328                                                         }
3329                                                         if (Segments[segnum].sides[sidenum].uvls[i].u < -f2_0) {
3330                                                                 int j;
3331                                                                 for (j=0;j<4;j++)
3332                                                                         Segments[segnum].sides[sidenum].uvls[j].u += f1_0;
3333                                                         }
3334                                                         if (Segments[segnum].sides[sidenum].uvls[i].v < -f2_0) {
3335                                                                 int j;
3336                                                                 for (j=0;j<4;j++)
3337                                                                         Segments[segnum].sides[sidenum].uvls[j].v += f1_0;
3338                                                         }
3339                                                 }
3340                                         }
3341                                 }
3342                         }
3343                 }
3344         }
3345 }
3346
3347 flickering_light Flickering_lights[MAX_FLICKERING_LIGHTS];
3348
3349 int Num_flickering_lights=0;
3350
3351 void flicker_lights()
3352 {
3353         int l;
3354         flickering_light *f;
3355
3356         f = Flickering_lights;
3357
3358         for (l=0;l<Num_flickering_lights;l++,f++) {
3359                 segment *segp = &Segments[f->segnum];
3360
3361                 //make sure this is actually a light
3362                 if (! (WALL_IS_DOORWAY(segp, f->sidenum) & WID_RENDER_FLAG))
3363                         continue;
3364                 if (! (TmapInfo[segp->sides[f->sidenum].tmap_num].lighting | TmapInfo[segp->sides[f->sidenum].tmap_num2 & 0x3fff].lighting))
3365                         continue;
3366
3367                 if (f->timer == 0x80000000)             //disabled
3368                         continue;
3369
3370                 if ((f->timer -= FrameTime) < 0) {
3371
3372                         while (f->timer < 0)
3373                                 f->timer += f->delay;
3374
3375                         f->mask = ((f->mask&0x80000000)?1:0) + (f->mask<<1);
3376
3377                         if (f->mask & 1)
3378                                 add_light(f->segnum,f->sidenum);
3379                         else
3380                                 subtract_light(f->segnum,f->sidenum);
3381                 }
3382         }
3383 }
3384
3385 //returns ptr to flickering light structure, or NULL if can't find
3386 flickering_light *find_flicker(int segnum,int sidenum)
3387 {
3388         int l;
3389         flickering_light *f;
3390
3391         //see if there's already an entry for this seg/side
3392
3393         f = Flickering_lights;
3394
3395         for (l=0;l<Num_flickering_lights;l++,f++)
3396                 if (f->segnum == segnum && f->sidenum == sidenum)       //found it!
3397                         return f;
3398
3399         return NULL;
3400 }
3401
3402 //turn flickering off (because light has been turned off)
3403 void disable_flicker(int segnum,int sidenum)
3404 {
3405         flickering_light *f;
3406
3407         if ((f=find_flicker(segnum,sidenum)) != NULL)
3408                 f->timer = 0x80000000;
3409 }
3410
3411 //turn flickering off (because light has been turned on)
3412 void enable_flicker(int segnum,int sidenum)
3413 {
3414         flickering_light *f;
3415
3416         if ((f=find_flicker(segnum,sidenum)) != NULL)
3417                 f->timer = 0;
3418 }
3419
3420
3421 #ifdef EDITOR
3422
3423 //returns 1 if ok, 0 if error
3424 int add_flicker(int segnum, int sidenum, fix delay, unsigned long mask)
3425 {
3426         int l;
3427         flickering_light *f;
3428
3429         mprintf((0,"add_flicker: %d:%d %x %x\n",segnum,sidenum,delay,mask));
3430
3431         //see if there's already an entry for this seg/side
3432
3433         f = Flickering_lights;
3434
3435         for (l=0;l<Num_flickering_lights;l++,f++)
3436                 if (f->segnum == segnum && f->sidenum == sidenum)       //found it!
3437                         break;
3438
3439         if (mask==0) {          //clearing entry
3440                 if (l == Num_flickering_lights)
3441                         return 0;
3442                 else {
3443                         int i;
3444                         for (i=l;i<Num_flickering_lights-1;i++)
3445                                 Flickering_lights[i] = Flickering_lights[i+1];
3446                         Num_flickering_lights--;
3447                         return 1;
3448                 }
3449         }
3450
3451         if (l == Num_flickering_lights) {
3452                 if (Num_flickering_lights == MAX_FLICKERING_LIGHTS)
3453                         return 0;
3454                 else
3455                         Num_flickering_lights++;
3456         }
3457
3458         f->segnum = segnum;
3459         f->sidenum = sidenum;
3460         f->delay = f->timer = delay;
3461         f->mask = mask;
3462
3463         return 1;
3464 }
3465
3466 #endif
3467
3468 //      -----------------------------------------------------------------------------
3469 //      Fire Laser:  Registers a laser fire, and performs special stuff for the fusion
3470 //                                  cannon.
3471 void FireLaser()
3472 {
3473
3474         Global_laser_firing_count += Weapon_info[Primary_weapon_to_weapon_info[Primary_weapon]].fire_count * (Controls.fire_primary_state || Controls.fire_primary_down_count);
3475
3476         if ((Primary_weapon == FUSION_INDEX) && (Global_laser_firing_count)) {
3477                 if ((Players[Player_num].energy < F1_0*2) && (Auto_fire_fusion_cannon_time == 0)) {
3478                         Global_laser_firing_count = 0;
3479                 } else {
3480                         if (Fusion_charge == 0)
3481                                 Players[Player_num].energy -= F1_0*2;
3482
3483                         Fusion_charge += FrameTime;
3484                         Players[Player_num].energy -= FrameTime;
3485
3486                         if (Players[Player_num].energy <= 0) {
3487                                 Players[Player_num].energy = 0;
3488                                 Auto_fire_fusion_cannon_time = GameTime -1;     //      Fire now!
3489                         } else
3490                                 Auto_fire_fusion_cannon_time = GameTime + FrameTime/2 + 1;
3491                                                                                                 //      Fire the fusion cannon at this time in the future.
3492
3493                         if (Fusion_charge < F1_0*2)
3494                                 PALETTE_FLASH_ADD(Fusion_charge >> 11, 0, Fusion_charge >> 11);
3495                         else
3496                                 PALETTE_FLASH_ADD(Fusion_charge >> 11, Fusion_charge >> 11, 0);
3497
3498                         if (GameTime < Fusion_last_sound_time)          //gametime has wrapped
3499                                 Fusion_next_sound_time = Fusion_last_sound_time = GameTime;
3500
3501                         if (Fusion_next_sound_time < GameTime) {
3502                                 if (Fusion_charge > F1_0*2) {
3503                                         digi_play_sample( 11, F1_0 );
3504                                         apply_damage_to_player(ConsoleObject, ConsoleObject, d_rand() * 4);
3505                                 } else {
3506                                         create_awareness_event(ConsoleObject, PA_WEAPON_ROBOT_COLLISION);
3507                                         digi_play_sample( SOUND_FUSION_WARMUP, F1_0 );
3508                                         #ifdef NETWORK
3509                                         if (Game_mode & GM_MULTI)
3510                                                 multi_send_play_sound(SOUND_FUSION_WARMUP, F1_0);
3511                                         #endif
3512                                 }
3513                                 Fusion_last_sound_time = GameTime;
3514                                 Fusion_next_sound_time = GameTime + F1_0/8 + d_rand()/4;
3515                         }
3516                 }
3517         }
3518
3519 }
3520
3521
3522 //      -------------------------------------------------------------------------------------------------------
3523 //      If player is close enough to objnum, which ought to be a powerup, pick it up!
3524 //      This could easily be made difficulty level dependent.
3525 void powerup_grab_cheat(object *player, int objnum)
3526 {
3527         fix     powerup_size;
3528         fix     player_size;
3529         fix     dist;
3530
3531         Assert(Objects[objnum].type == OBJ_POWERUP);
3532
3533         powerup_size = Objects[objnum].size;
3534         player_size = player->size;
3535
3536         dist = vm_vec_dist_quick(&Objects[objnum].pos, &player->pos);
3537
3538         if ((dist < 2*(powerup_size + player_size)) && !(Objects[objnum].flags & OF_SHOULD_BE_DEAD)) {
3539                 vms_vector      collision_point;
3540
3541                 vm_vec_avg(&collision_point, &Objects[objnum].pos, &player->pos);
3542                 collide_player_and_powerup(player, &Objects[objnum], &collision_point);
3543         }
3544 }
3545
3546 //      -------------------------------------------------------------------------------------------------------
3547 //      Make it easier to pick up powerups.
3548 //      For all powerups in this segment, pick them up at up to twice pickuppable distance based on dot product
3549 //      from player to powerup and player's forward vector.
3550 //      This has the effect of picking them up more easily left/right and up/down, but not making them disappear
3551 //      way before the player gets there.
3552 void powerup_grab_cheat_all(void)
3553 {
3554         segment *segp;
3555         int             objnum;
3556
3557         segp = &Segments[ConsoleObject->segnum];
3558         objnum = segp->objects;
3559
3560         while (objnum != -1) {
3561                 if (Objects[objnum].type == OBJ_POWERUP)
3562                         powerup_grab_cheat(ConsoleObject, objnum);
3563                 objnum = Objects[objnum].next;
3564         }
3565
3566 }
3567
3568 int     Last_level_path_created = -1;
3569
3570 #ifdef SHOW_EXIT_PATH
3571
3572 //      ------------------------------------------------------------------------------------------------------------------
3573 //      Create path for player from current segment to goal segment.
3574 //      Return true if path created, else return false.
3575 int mark_player_path_to_segment(int segnum)
3576 {
3577         int             i;
3578         object  *objp = ConsoleObject;
3579         short           player_path_length=0;
3580         int             player_hide_index=-1;
3581
3582         if (Last_level_path_created == Current_level_num) {
3583                 return 0;
3584         }
3585
3586         Last_level_path_created = Current_level_num;
3587
3588         if (create_path_points(objp, objp->segnum, segnum, Point_segs_free_ptr, &player_path_length, 100, 0, 0, -1) == -1) {
3589                 mprintf((0, "Unable to form path of length %i for myself\n", 100));
3590                 return 0;
3591         }
3592
3593         player_hide_index = Point_segs_free_ptr - Point_segs;
3594         Point_segs_free_ptr += player_path_length;
3595
3596         if (Point_segs_free_ptr - Point_segs + MAX_PATH_LENGTH*2 > MAX_POINT_SEGS) {
3597                 mprintf((1, "Can't create path.  Not enough point_segs.\n"));
3598                 ai_reset_all_paths();
3599                 return 0;
3600         }
3601
3602         for (i=1; i<player_path_length; i++) {
3603                 int                     segnum, objnum;
3604                 vms_vector      seg_center;
3605                 object          *obj;
3606
3607                 segnum = Point_segs[player_hide_index+i].segnum;
3608                 mprintf((0, "%3i ", segnum));
3609                 seg_center = Point_segs[player_hide_index+i].point;
3610
3611                 objnum = obj_create( OBJ_POWERUP, POW_ENERGY, segnum, &seg_center, &vmd_identity_matrix, Powerup_info[POW_ENERGY].size, CT_POWERUP, MT_NONE, RT_POWERUP);
3612                 if (objnum == -1) {
3613                         Int3();         //      Unable to drop energy powerup for path
3614                         return 1;
3615                 }
3616
3617                 obj = &Objects[objnum];
3618                 obj->rtype.vclip_info.vclip_num = Powerup_info[obj->id].vclip_num;
3619                 obj->rtype.vclip_info.frametime = Vclip[obj->rtype.vclip_info.vclip_num].frame_time;
3620                 obj->rtype.vclip_info.framenum = 0;
3621                 obj->lifeleft = F1_0*100 + d_rand() * 4;
3622         }
3623
3624         mprintf((0, "\n"));
3625         return 1;
3626 }
3627
3628 //      Return true if it happened, else return false.
3629 int create_special_path(void)
3630 {
3631         int     i,j;
3632
3633         //      ---------- Find exit doors ----------
3634         for (i=0; i<=Highest_segment_index; i++)
3635                 for (j=0; j<MAX_SIDES_PER_SEGMENT; j++)
3636                         if (Segments[i].children[j] == -2) {
3637                                 mprintf((0, "Exit at segment %i\n", i));
3638                                 return mark_player_path_to_segment(i);
3639                         }
3640
3641         return 0;
3642 }
3643
3644 #endif
3645
3646
3647 #ifndef RELEASE
3648 int     Max_obj_count_mike = 0;
3649
3650 //      Shows current number of used objects.
3651 void show_free_objects(void)
3652 {
3653         if (!(FrameCount & 8)) {
3654                 int     i;
3655                 int     count=0;
3656
3657                 mprintf((0, "Highest_object_index = %3i, MAX_OBJECTS = %3i, now used = ", Highest_object_index, MAX_OBJECTS));
3658
3659                 for (i=0; i<=Highest_object_index; i++)
3660                         if (Objects[i].type != OBJ_NONE)
3661                                 count++;
3662
3663                 mprintf((0, "%3i", count));
3664
3665                 if (count > Max_obj_count_mike) {
3666                         Max_obj_count_mike = count;
3667                         mprintf((0, " ***"));
3668                 }
3669
3670                 mprintf((0, "\n"));
3671         }
3672
3673 }
3674
3675 #endif
3676
3677 #ifdef WINDOWS
3678 void game_win_init_cockpit_mask(int sram)
3679 {
3680         if (dd_VR_offscreen_buffer && dd_VR_offscreen_buffer != dd_grd_backcanv) {
3681                 dd_gr_free_canvas(dd_VR_offscreen_buffer);
3682         }
3683
3684         if (GRMODEINFO(paged) && !GRMODEINFO(dbuf)) {
3685         //      Here we will make the VR_offscreen_buffer the 2nd page and hopefully
3686         //      we can just flip it, saving a blt.
3687                 Int3();
3688         }
3689         else if (GRMODEINFO(dbuf)||GRMODEINFO(emul)) {
3690         //      The offscreen buffer will be created.  We will just blt this
3691         //      to the screen (which may be blted to the primary surface)
3692                 if ( grd_curscreen->sc_h < 200 ) {
3693                         dd_VR_offscreen_buffer = dd_gr_create_canvas(grd_curscreen->sc_w, 200);
3694                         VR_offscreen_buffer = &dd_VR_offscreen_buffer->canvas;
3695                         if (sram) {
3696                                 DDFreeSurface(dd_VR_offscreen_buffer->lpdds);
3697                                 dd_VR_offscreen_buffer->lpdds = DDCreateSysMemSurface(grd_curscreen->sc_w, 200);
3698                                 dd_VR_offscreen_buffer->sram = 1;
3699                         }
3700                 }
3701                 else {
3702                         dd_VR_offscreen_buffer = dd_gr_create_canvas(grd_curscreen->sc_w, grd_curscreen->sc_h);
3703                         VR_offscreen_buffer = &dd_VR_offscreen_buffer->canvas;
3704                         if (sram) {
3705                                 DDFreeSurface(dd_VR_offscreen_buffer->lpdds);
3706                                 dd_VR_offscreen_buffer->lpdds = DDCreateSysMemSurface(grd_curscreen->sc_w, grd_curscreen->sc_h);
3707                                 dd_VR_offscreen_buffer->sram = 1;
3708                         }
3709                 }
3710         }
3711
3712         dd_gr_init_sub_canvas( &dd_VR_render_buffer[0], dd_VR_offscreen_buffer, 0, 0, grd_curscreen->sc_w, grd_curscreen->sc_h );
3713         dd_gr_init_sub_canvas( &dd_VR_render_buffer[1], dd_VR_offscreen_buffer, 0, 0, grd_curscreen->sc_w, grd_curscreen->sc_h );
3714         gr_init_sub_canvas( &VR_render_buffer[0], VR_offscreen_buffer, 0, 0, grd_curscreen->sc_w, grd_curscreen->sc_h );
3715         gr_init_sub_canvas( &VR_render_buffer[1], VR_offscreen_buffer, 0, 0, grd_curscreen->sc_w, grd_curscreen->sc_h );
3716
3717         game_init_render_sub_buffers( 0, 0, grd_curscreen->sc_w, grd_curscreen->sc_h );
3718 }
3719
3720 //@@void game_win_init_cockpit_mask()
3721 //@@{
3722 //@@    char title_pal[768];
3723 //@@    dd_grs_canvas ccanv;
3724 //@@    int pcx_error;
3725 //@@    LPDIRECTDRAWSURFACE dds;
3726 //@@
3727 //@@    dds = DDCreateSurface(GRMODEINFO(w), GRMODEINFO(h), 1);
3728 //@@    Assert(dds != NULL);
3729 //@@
3730 //@@    _lpDDSMask = dds;
3731 //@@    ccanv.lpdds = dds;
3732 //@@    dd_gr_reinit_canvas(&ccanv);
3733 //@@
3734 //@@    dd_gr_set_current_canvas(&ccanv);
3735 //@@    DDGRLOCK(dd_grd_curcanv)
3736 //@@    {
3737 //@@            if (W95DisplayMode == SM95_640x480x8) {
3738 //@@                    pcx_error=pcx_read_bitmap( "MASKB.PCX", &grd_curcanv->cv_bitmap,
3739 //@@                            grd_curcanv->cv_bitmap.bm_type,
3740 //@@                            title_pal );
3741 //@@            }
3742 //@@            else {
3743 //@@                    pcx_error=pcx_read_bitmap( "MASK.PCX", &grd_curcanv->cv_bitmap,
3744 //@@                            grd_curcanv->cv_bitmap.bm_type,
3745 //@@                            title_pal );
3746 //@@            }
3747 //@@    }
3748 //@@    DDGRUNLOCK(dd_grd_curcanv);
3749 //@@
3750 //@@    Assert(pcx_error == PCX_ERROR_NONE);
3751 //@@    Game_cockpit_copy_code = (ubyte *)(0xABADC0DE);
3752 //@@}
3753
3754 #endif
3755
3756 /*
3757  * reads a flickering_light structure from a CFILE
3758  */
3759 void flickering_light_read(flickering_light *fl, CFILE *fp)
3760 {
3761         fl->segnum = cfile_read_short(fp);
3762         fl->sidenum = cfile_read_short(fp);
3763         fl->mask = cfile_read_int(fp);
3764         fl->timer = cfile_read_fix(fp);
3765         fl->delay = cfile_read_fix(fp);
3766 }