main/game.c

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