src/menuui/credits.cpp

   1 /*
   2  * Copyright (C) Volition, Inc. 1999.  All rights reserved.
   3  *
   4  * All source code herein is the property of Volition, Inc. You may not sell
   5  * or otherwise commercially exploit the source or things you created based on
   6  * the source.
   7  */
   8
   9 /*
  10  * $Logfile: /Freespace2/code/MenuUI/Credits.cpp $
  11  * $Revision$
  12  * $Date$
  13  * $Author$
  14  *
  15  * C source file for displaying game credits
  16  *
  17  * $Log$
  18  * Revision 1.9  2005/03/29 02:18:47  taylor
  19  * Various 64-bit platform fixes
  20  * Fix compiler errors with MAKE_FS1 and fix gr_set_bitmap() too
  21  * Make sure that turrets can fire at asteroids for FS1 (needed for a couple missions)
  22  * Streaming audio support (big thanks to Pierre Willenbrock!!)
  23  * Removed dependance on strings.tbl for FS1 since we don't actually need it now
  24  *
  25  * Revision 1.8  2004/09/20 01:31:44  theoddone33
  26  * GCC 3.4 fixes.
  27  *
  28  * Revision 1.7  2003/08/03 16:10:29  taylor
  29  * cleanup; compile warning fixes
  30  *
  31  * Revision 1.6  2003/06/11 18:30:32  taylor
  32  * plug memory leaks
  33  *
  34  * Revision 1.5  2003/05/25 02:30:42  taylor
  35  * Freespace 1 support
  36  *
  37  * Revision 1.4  2002/06/09 04:41:22  relnev
  38  * added copyright header
  39  *
  40  * Revision 1.3  2002/05/27 22:43:02  theoddone33
  41  * Fix more glide symbols
  42  *
  43  * Revision 1.2  2002/05/07 03:16:46  theoddone33
  44  * The Great Newline Fix
  45  *
  46  * Revision 1.1.1.1  2002/05/03 03:28:09  root
  47  * Initial import.
  48  *
  49  *
  50  * 20    9/14/99 5:14a Dave
  51  * Fixed credits drawing in Glide.
  52  *
  53  * 19    9/13/99 1:53p Dave
  54  * Fixed completely brain dead code in credits_init().
  55  *
  56  * 18    9/09/99 10:55a Jefff
  57  *
  58  * 17    9/03/99 11:45a Jefff
  59  *
  60  * 16    9/01/99 5:28p Jefff
  61  * hi res art shows up now
  62  *
  63  * 15    9/01/99 4:20p Jefff
  64  * mo' pictures
  65  *
  66  * 14    9/01/99 12:19p Jefff
  67  * text splitting for long lines
  68  *
  69  * 13    7/19/99 2:13p Dave
  70  * Added some new strings for Heiko.
  71  *
  72  * 12    2/03/99 6:06p Dave
  73  * Groundwork for FS2 PXO usertracker support.  Gametracker support next.
  74  *
  75  * 11    2/03/99 11:44a Dave
  76  * Fixed d3d transparent textures.
  77  *
  78  * 10    2/01/99 5:55p Dave
  79  * Removed the idea of explicit bitmaps for buttons. Fixed text
  80  * highlighting for disabled gadgets.
  81  *
  82  * 9     1/30/99 9:01p Dave
  83  * Coord fixes.
  84  *
  85  * 8     1/30/99 5:08p Dave
  86  * More new hi-res stuff.Support for nice D3D textures.
  87  *
  88  * 7     1/29/99 12:47a Dave
  89  * Put in sounds for beam weapon. A bunch of interface screens (tech
  90  * database stuff).
  91  *
  92  * 6     1/28/99 1:46a Dave
  93  * Updated coords and bitmaps.
  94  *
  95  * 5     1/14/99 5:15p Neilk
  96  * changed credits, command debrief interfaces to high resolution support
  97  *
  98  * 4     11/20/98 4:08p Dave
  99  * Fixed flak effect in multiplayer.
 100  *
 101  * 3     10/13/98 9:28a Dave
 102  * Started neatening up freespace.h. Many variables renamed and
 103  * reorganized. Added AlphaColors.[h,cpp]
 104  *
 105  * 2     10/07/98 10:53a Dave
 106  * Initial checkin.
 107  *
 108  * 1     10/07/98 10:49a Dave
 109  *
 110  * 18    6/19/98 3:51p Lawrance
 111  * deal with foreign chars in the credits
 112  *
 113  * 17    6/01/98 11:43a John
 114  * JAS & MK:  Classified all strings for localization.
 115  *
 116  * 16    5/24/98 9:01p Lawrance
 117  * Add commit sounds when accept is pressed
 118  *
 119  * 15    5/20/98 1:04p Hoffoss
 120  * Made credits screen use new artwork and removed rating field usage from
 121  * Fred (a goal struct member).
 122  *
 123  * 14    5/12/98 4:17p Hoffoss
 124  * Make ctrl-arrows (up/down) switch between tech room screens.
 125  *
 126  * 13    5/12/98 11:21a Hoffoss
 127  * Disabled cutscene screen and simulator room.
 128  *
 129  * 12    5/11/98 8:04p Hoffoss
 130  * Fixed minor bugs.
 131  *
 132  * 11    4/22/98 3:35p John
 133  * String externalization marking
 134  *
 135  * 10    4/22/98 10:46a Hoffoss
 136  * Added images to credits screen.
 137  *
 138  * 9     4/21/98 7:07p Hoffoss
 139  * Fixed problem where when switching screens flashes old tab hilight once
 140  * before switching to new state.
 141  *
 142  * 8     4/17/98 3:28p Hoffoss
 143  * Added new credits screen code.
 144  *
 145  * 7     3/05/98 11:15p Hoffoss
 146  * Changed non-game key checking to use game_check_key() instead of
 147  * game_poll().
 148  *
 149  * 6     2/22/98 12:19p John
 150  * Externalized some strings
 151  *
 152  * 5     1/05/98 2:30p John
 153  * made credits.tbl display
 154  *
 155  * 4     9/19/97 5:14p Lawrance
 156  * use new naming convention for spooled music
 157  *
 158  * 3     8/31/97 6:38p Lawrance
 159  * pass in frametime to do_frame loop
 160  *
 161  * 2     4/22/97 11:06a Lawrance
 162  * credits music playing, credits screen is a separate state
 163  *
 164  * $NoKeywords: $
 165  */
 166
 167 #include <stdlib.h>
 168
 169 #include "gamesequence.h"
 170 #include "font.h"
 171 #include "key.h"
 172 #include "bmpman.h"
 173 #include "2d.h"
 174 #include "timer.h"
 175 #include "gamesnd.h"
 176 #include "audiostr.h"
 177 #include "eventmusic.h" /* for Master_event_music_volume */
 178 #include "cfile.h"
 179 #include "ui.h"
 180 #include "missionscreencommon.h"
 181 #include "player.h"
 182 #include "freespace.h"
 183 #include "alphacolors.h"
 184 #include "localize.h"
 185
 186 #define CREDITS_MUSIC_DELAY     2000
 187 #define CREDITS_SCROLL_RATE     15.0f
 188 #define CREDITS_ARTWORK_DISPLAY_TIME    9.0f
 189 #define CREDITS_ARTWORK_FADE_TIME               1.0f
 190
 191 #define NUM_BUTTONS                             5
 192 #define NUM_IMAGES                              46
 193
 194 #define TECH_DATABASE_BUTTON    0
 195 #define SIMULATOR_BUTTON                1
 196 #define CUTSCENES_BUTTON                2
 197 #define CREDITS_BUTTON                  3
 198 #define EXIT_BUTTON                             4
 199
 200 // inidicies for coordinates
 201 #define CREDITS_X_COORD 0
 202 #define CREDITS_Y_COORD 1
 203 #define CREDITS_W_COORD 2
 204 #define CREDITS_H_COORD 3
 205
 206 static const char* Credits_bitmap_fname[GR_NUM_RESOLUTIONS] = {
 207         "Credits",                      // GR_640
 208         "2_Credits"
 209 };
 210
 211 static const char* Credits_bitmap_mask_fname[GR_NUM_RESOLUTIONS] = {
 212         "Credits-M",                    // GR_640
 213         "2_Credits-M"
 214 };
 215
 216 int Credits_image_coords[GR_NUM_RESOLUTIONS][4] = {
 217         {
 218 #ifdef MAKE_FS1
 219                 225, 15, 400, 292
 220 #else
 221                 219, 15, 394, 286                       // GR_640
 222 #endif
 223         },
 224         {
 225                 351, 25, 629, 455                       // GR_1024
 226         }
 227 };
 228
 229 // x, y, w, h
 230 int Credits_text_coords[GR_NUM_RESOLUTIONS][4] = {
 231         {
 232 #ifdef MAKE_FS1
 233                 46, 321, 450, 134
 234 #else
 235                 26, 316, 482, 157                       // GR_640
 236 #endif
 237         },
 238         {
 239                 144, 507, 568, 249                      // GR_640
 240         }
 241 };
 242
 243 struct credits_screen_buttons {
 244         const char *filename;
 245         int x, y, xt, yt;
 246         int hotspot;
 247         UI_BUTTON button;  // because we have a class inside this struct, we need the constructor below..
 248
 249         credits_screen_buttons(const char *name, int x1, int y1, int xt1, int yt1, int h) : filename(name), x(x1), y(y1), xt(xt1), yt(yt1), hotspot(h) {}
 250 };
 251
 252 static int Background_bitmap;
 253 #ifdef MAKE_FS1
 254 static int CreditsWin01 = -1;
 255 static int CreditsWin02 = -1;
 256 static int CreditsWin03 = -1;
 257 static int CreditsWin04 = -1;
 258 #endif
 259
 260 static UI_WINDOW Ui_window;
 261
 262 static credits_screen_buttons Buttons[NUM_BUTTONS][GR_NUM_RESOLUTIONS] = {
 263 //XSTR:OFF
 264 #ifdef MAKE_FS1
 265     {
 266                         credits_screen_buttons("TDB_00", 0, 0, -1, -1, 0),              // GR_640
 267                         credits_screen_buttons("2_TDB_00", 12, 5, 59, 12, 0)            // GR_1024
 268     },
 269     {
 270                         credits_screen_buttons("TDB_01", 0, 19, -1, -1, 1),             // GR_640
 271                         credits_screen_buttons("2_TDB_01", 12, 31, 59, 37, 1)           // GR_1024
 272     },
 273     {
 274                         credits_screen_buttons("TDB_02", 0, 35, -1, -1, 2),             // GR_640
 275                         credits_screen_buttons("2_TDB_02", 12, 56, 59, 62, 2)           // GR_1024
 276     },
 277     {
 278                         credits_screen_buttons("TDB_03", 0, 56, -1, -1, 3),             // GR_640
 279                         credits_screen_buttons("2_TDB_03", 12, 81, 59, 88, 3)           // GR_1024
 280     },
 281     {
 282                         credits_screen_buttons("CRB_04", 561, 411, -1, -1, 4),  // GR_640
 283                         credits_screen_buttons("2_CRB_04", 914, 681, 953, 68, 4)        // GR_1024
 284     }
 285 #else
 286         {
 287                         credits_screen_buttons("TDB_00", 7, 3, 37, 7, 0),                       // GR_640
 288                         credits_screen_buttons("2_TDB_00", 12, 5, 59, 12, 0)                    // GR_1024
 289         },
 290         {
 291                         credits_screen_buttons("TDB_01", 7, 18, 37, 23, 1),             // GR_640
 292                         credits_screen_buttons("2_TDB_01", 12, 31, 59, 37, 1)           // GR_1024
 293         },
 294         {
 295                         credits_screen_buttons("TDB_02", 7, 34, 37, 38, 2),             // GR_640
 296                         credits_screen_buttons("2_TDB_02", 12, 56, 59, 62, 2)           // GR_1024
 297         },
 298         {
 299                         credits_screen_buttons("TDB_03", 7, 49, 37, 54, 3),             // GR_640
 300                         credits_screen_buttons("2_TDB_03", 12, 81, 59, 88, 3)           // GR_1024
 301         },
 302         {
 303                         credits_screen_buttons("CRB_04", 571, 425, 588, 413, 4),        // GR_640
 304                         credits_screen_buttons("2_CRB_04", 914, 681, 953, 668, 4)       // GR_1024
 305         }
 306 #endif
 307 //XSTR:ON
 308 };
 309
 310 static int      Credits_music_handle = -1;
 311 static int      Credits_music_begin_timestamp;
 312
 313 static int      Credits_frametime;              // frametime of credits_do_frame() loop in ms
 314 static int      Credits_last_time;              // timestamp used to calc frametime (in ms)
 315 static float Credits_counter;
 316 static int Credits_artwork_index;
 317 static int Credits_bmps[NUM_IMAGES];
 318
 319 char *Credit_text = NULL;
 320
 321 // Positions for credits...
 322 float Credit_start_pos, Credit_stop_pos, Credit_position = 0.0f;
 323
 324 void credits_stop_music()
 325 {
 326         if ( Credits_music_handle != -1 ) {
 327                 audiostream_close_file(Credits_music_handle);
 328                 Credits_music_handle = -1;
 329         }
 330 }
 331
 332 void credits_load_music(const char* fname)
 333 {
 334         if ( Credits_music_handle != -1 ){
 335                 return;
 336         }
 337
 338         if ( fname ){
 339                 Credits_music_handle = audiostream_open( fname, ASF_EVENTMUSIC );
 340         }
 341 }
 342
 343 void credits_start_music()
 344 {
 345         if (Credits_music_handle != -1) {
 346                 if ( !audiostream_is_playing(Credits_music_handle) ){
 347                         audiostream_play(Credits_music_handle, Master_event_music_volume);
 348                 }
 349         } else {
 350                 nprintf(("Warning", "Cannot play credits music\n"));
 351         }
 352 }
 353
 354 int credits_screen_button_pressed(int n)
 355 {
 356         switch (n) {
 357         case TECH_DATABASE_BUTTON:
 358                 gamesnd_play_iface(SND_SWITCH_SCREENS);
 359                 gameseq_post_event(GS_EVENT_TECH_MENU);
 360                 return 1;
 361
 362         case SIMULATOR_BUTTON:
 363                 gamesnd_play_iface(SND_SWITCH_SCREENS);
 364                 gameseq_post_event(GS_EVENT_SIMULATOR_ROOM);
 365                 return 1;
 366
 367         case CUTSCENES_BUTTON:
 368                 gamesnd_play_iface(SND_SWITCH_SCREENS);
 369                 gameseq_post_event(GS_EVENT_GOTO_VIEW_CUTSCENES_SCREEN);
 370                 return 1;
 371
 372         case EXIT_BUTTON:
 373                 gamesnd_play_iface(SND_COMMIT_PRESSED);
 374                 gameseq_post_event(GS_EVENT_MAIN_MENU);
 375                 game_flush();
 376                 break;
 377         }
 378
 379         return 0;
 380 }
 381
 382 void credits_init()
 383 {
 384         int i, w, h;
 385         credits_screen_buttons *b;
 386         char line[512] = "";
 387         char *linep1, *linep2;
 388
 389         int credits_spooled_music_index = event_music_get_spooled_music_index("Cinema");
 390         if(credits_spooled_music_index != -1){
 391                 char *credits_wavfile_name = Spooled_music[credits_spooled_music_index].filename;
 392                 if(credits_wavfile_name != NULL){
 393                         credits_load_music(credits_wavfile_name);
 394                 }
 395         }
 396
 397         // Use this id to trigger the start of music playing on the briefing screen
 398         Credits_music_begin_timestamp = timestamp(CREDITS_MUSIC_DELAY);
 399
 400         Credits_frametime = 0;
 401         Credits_last_time = timer_get_milliseconds();
 402
 403         Credit_text = NULL;
 404
 405         // allocate enough space for credits text
 406         CFILE *fp = cfopen( NOX("credits.tbl"), "rb" );
 407         if(fp != NULL){
 408                 int size;
 409                 size = cfilelength(fp);
 410                 Credit_text = (char *) malloc(size + 200);
 411                 cfclose(fp);
 412
 413                 // open localization and parse
 414                 lcl_ext_open();
 415
 416                 try {
 417                         read_file_text("credits.tbl");
 418                         reset_parse();
 419
 420                         // keep reading everything in
 421                         SDL_strlcpy(Credit_text, "", size+200);
 422 #ifndef MAKE_FS1
 423                         while(!check_for_string_raw("#end")){
 424 #else
 425                         char *ugh = Mp;
 426                         char ch;
 427                         int line_count = 0;
 428
 429                         // get the line count, probably a crappy way to do it but it's the best way i've
 430                         // found to step through the credits without crashing problems since there's no
 431                         // definite end line in FS1
 432                         while (*ugh && *ugh != EOF_CHAR) {
 433                                 ch = *ugh;
 434
 435                                 if (ch == '\n'){
 436                                         line_count++;
 437                                 }
 438                                 ugh++;
 439                         }
 440
 441                         while(line_count > 0){
 442                                 line_count--;
 443 #endif
 444                                 stuff_string_line(line, 511);
 445                                 linep1 = line;
 446
 447                                 do {
 448                                         linep2 = split_str_once(linep1, Credits_text_coords[gr_screen.res][2]);
 449                                         SDL_strlcat(Credit_text, linep1, size+200);
 450                                         SDL_strlcat(Credit_text, "\n", size+200);
 451                                         linep1 = linep2;
 452                                 } while (linep2 != NULL);
 453                         }
 454                 } catch (parse_error_t rval) {
 455                         (void)rval;     // suppress unused warning in release build
 456                         mprintf(("Error parsing 'credits.tbl'\nError code = %i.\n", (int)rval));
 457                 }
 458
 459                 // close localization
 460                 lcl_ext_close();
 461         } else {
 462                 Credit_text = (char *) malloc(25 + 200);
 463                 SDL_strlcpy(Credit_text, NOX("No credits available.\n"), 25+200);
 464         }
 465
 466         int ch;
 467         for ( i = 0; Credit_text[i]; i++ ) {
 468                         ch = Credit_text[i];
 469                         switch (ch) {
 470                         case -4:
 471                                 ch = 129;
 472                                 break;
 473
 474                         case -28:
 475                                 ch = 132;
 476                                 break;
 477
 478                         case -10:
 479                                 ch = 148;
 480                                 break;
 481
 482                         case -23:
 483                                 ch = 130;
 484                                 break;
 485
 486                         case -30:
 487                                 ch = 131;
 488                                 break;
 489
 490                         case -25:
 491                                 ch = 135;
 492                                 break;
 493
 494                         case -21:
 495                                 ch = 137;
 496                                 break;
 497
 498                         case -24:
 499                                 ch = 138;
 500                                 break;
 501
 502                         case -17:
 503                                 ch = 139;
 504                                 break;
 505
 506                         case -18:
 507                                 ch = 140;
 508                                 break;
 509
 510                         case -60:
 511                                 ch = 142;
 512                                 break;
 513
 514                         case -55:
 515                                 ch = 144;
 516                                 break;
 517
 518                         case -12:
 519                                 ch = 147;
 520                                 break;
 521
 522                         case -14:
 523                                 ch = 149;
 524                                 break;
 525
 526                         case -5:
 527                                 ch = 150;
 528                                 break;
 529
 530                         case -7:
 531                                 ch = 151;
 532                                 break;
 533
 534                         case -42:
 535                                 ch = 153;
 536                                 break;
 537
 538                         case -36:
 539                                 ch = 154;
 540                                 break;
 541
 542                         case -31:
 543                                 ch = 160;
 544                                 break;
 545
 546                         case -19:
 547                                 ch = 161;
 548                                 break;
 549
 550                         case -13:
 551                                 ch = 162;
 552                                 break;
 553
 554                         case -6:
 555                                 ch = 163;
 556                                 break;
 557
 558                         case -32:
 559                                 ch = 133;
 560                                 break;
 561
 562                         case -22:
 563                                 ch = 136;
 564                                 break;
 565
 566                         case -20:
 567                                 ch = 141;
 568                                 break;
 569                         }
 570                         Credit_text[i] = (char)ch;
 571         }
 572
 573         gr_get_string_size(&w, &h, Credit_text);
 574
 575         Credit_start_pos = i2fl(Credits_text_coords[gr_screen.res][CREDITS_H_COORD]);
 576         Credit_stop_pos = -i2fl(h);
 577         Credit_position = Credit_start_pos;
 578
 579         Ui_window.create(0, 0, gr_screen.max_w, gr_screen.max_h, 0);
 580         Ui_window.set_mask_bmap(Credits_bitmap_mask_fname[gr_screen.res]);
 581         common_set_interface_palette("InterfacePalette");  // set the interface palette
 582
 583         for (i=0; i<NUM_BUTTONS; i++) {
 584                 b = &Buttons[i][gr_screen.res];
 585
 586                 b->button.create(&Ui_window, "", b->x, b->y, 60, 30, (i < 2), 1);
 587                 // set up callback for when a mouse first goes over a button
 588                 b->button.set_highlight_action(common_play_highlight_sound);
 589                 b->button.set_bmaps(b->filename);
 590                 b->button.link_hotspot(b->hotspot);
 591         }
 592
 593 #ifndef MAKE_FS1
 594         // add some text
 595         Ui_window.add_XSTR("Technical Database", 1055, Buttons[TECH_DATABASE_BUTTON][gr_screen.res].xt,  Buttons[TECH_DATABASE_BUTTON][gr_screen.res].yt, &Buttons[TECH_DATABASE_BUTTON][gr_screen.res].button, UI_XSTR_COLOR_GREEN);
 596         Ui_window.add_XSTR("Mission Simulator", 1056, Buttons[SIMULATOR_BUTTON][gr_screen.res].xt,  Buttons[SIMULATOR_BUTTON][gr_screen.res].yt, &Buttons[SIMULATOR_BUTTON][gr_screen.res].button, UI_XSTR_COLOR_GREEN);
 597         Ui_window.add_XSTR("Cutscenes", 1057, Buttons[CUTSCENES_BUTTON][gr_screen.res].xt,  Buttons[CUTSCENES_BUTTON][gr_screen.res].yt, &Buttons[CUTSCENES_BUTTON][gr_screen.res].button, UI_XSTR_COLOR_GREEN);
 598         Ui_window.add_XSTR("Credits", 1058, Buttons[CREDITS_BUTTON][gr_screen.res].xt,  Buttons[CREDITS_BUTTON][gr_screen.res].yt, &Buttons[CREDITS_BUTTON][gr_screen.res].button, UI_XSTR_COLOR_GREEN);
 599         Ui_window.add_XSTR("Exit", 1420, Buttons[EXIT_BUTTON][gr_screen.res].xt,  Buttons[EXIT_BUTTON][gr_screen.res].yt, &Buttons[EXIT_BUTTON][gr_screen.res].button, UI_XSTR_COLOR_PINK);
 600 #endif
 601
 602         if (Player->flags & PLAYER_FLAGS_IS_MULTI) {
 603                 Buttons[SIMULATOR_BUTTON][gr_screen.res].button.disable();
 604                 Buttons[CUTSCENES_BUTTON][gr_screen.res].button.disable();
 605         }
 606
 607         Buttons[EXIT_BUTTON][gr_screen.res].button.set_hotkey(KEY_CTRLED | SDLK_RETURN);
 608
 609         Background_bitmap = bm_load(Credits_bitmap_fname[gr_screen.res]);
 610         Credits_artwork_index = rand() % NUM_IMAGES;
 611         for (i=0; i<NUM_IMAGES; i++){
 612                 Credits_bmps[i] = -1;
 613         }
 614
 615 #ifdef MAKE_FS1
 616         CreditsWin01 = bm_load(NOX("CreditsWin01"));
 617         CreditsWin02 = bm_load(NOX("CreditsWin02"));
 618         CreditsWin03 = bm_load(NOX("CreditsWin03"));
 619         CreditsWin04 = bm_load(NOX("CreditsWin04"));
 620 #endif
 621 }
 622
 623 void credits_close()
 624 {
 625         int i;
 626
 627 #ifdef MAKE_FS1
 628         if (CreditsWin01 != -1){
 629                 bm_unload(CreditsWin01);
 630                 CreditsWin01 = -1;
 631         }
 632         if (CreditsWin02 != -1){
 633                 bm_unload(CreditsWin02);
 634                 CreditsWin02 = -1;
 635         }
 636         if (CreditsWin03 != -1){
 637                 bm_unload(CreditsWin03);
 638                 CreditsWin03 = -1;
 639         }
 640         if (CreditsWin04 != -1){
 641                 bm_unload(CreditsWin04);
 642                 CreditsWin04 = -1;
 643         }
 644 #endif
 645
 646         for (i=0; i<NUM_IMAGES; i++){
 647                 if (Credits_bmps[i] >= 0){
 648                         bm_unload(Credits_bmps[i]);
 649                         Credits_bmps[i] = -1;
 650                 }
 651         }
 652
 653         credits_stop_music();
 654
 655         if (Credit_text) {
 656                 free(Credit_text);
 657                 Credit_text = NULL;
 658         }
 659
 660         if (Background_bitmap){
 661                 bm_unload(Background_bitmap);
 662         }
 663
 664         Ui_window.destroy();
 665         common_free_interface_palette();                // restore game palette
 666 }
 667
 668 void credits_do_frame(float frametime)
 669 {
 670         int i, k, next, percent, bm1, bm2;
 671         int bx1, by1, bw1, bh1;
 672         int bx2, by2, bw2, bh2;
 673
 674         // Use this id to trigger the start of music playing on the credits screen
 675         if ( timestamp_elapsed(Credits_music_begin_timestamp) ) {
 676                 Credits_music_begin_timestamp = 0;
 677                 credits_start_music();
 678         }
 679
 680         k = Ui_window.process();
 681         switch (k) {
 682         case SDLK_ESCAPE:
 683                 gameseq_post_event(GS_EVENT_MAIN_MENU);
 684                 key_flush();
 685                 break;
 686
 687         case KEY_CTRLED | SDLK_UP:
 688         case KEY_SHIFTED | SDLK_TAB:
 689                 if ( !(Player->flags & PLAYER_FLAGS_IS_MULTI) ) {
 690                         credits_screen_button_pressed(CUTSCENES_BUTTON);
 691                         break;
 692                 }
 693                 // else, react like tab key.
 694
 695         case KEY_CTRLED | SDLK_DOWN:
 696         case SDLK_TAB:
 697                 credits_screen_button_pressed(TECH_DATABASE_BUTTON);
 698                 break;
 699
 700         default:
 701                 break;
 702         } // end switch
 703
 704         for (i=0; i<NUM_BUTTONS; i++){
 705                 if (Buttons[i][gr_screen.res].button.pressed()){
 706                         if (credits_screen_button_pressed(i)){
 707                                 return;
 708                         }
 709                 }
 710         }
 711
 712         gr_reset_clip();
 713         GR_MAYBE_CLEAR_RES(Background_bitmap);
 714         if (Background_bitmap >= 0) {
 715                 gr_set_bitmap(Background_bitmap, GR_ALPHABLEND_NONE, GR_BITBLT_MODE_NORMAL, 1.0f, -1, -1);
 716                 gr_bitmap(0, 0);
 717         }
 718
 719         percent = (int) (100.0f - (CREDITS_ARTWORK_DISPLAY_TIME - Credits_counter) * 100.0f / CREDITS_ARTWORK_FADE_TIME);
 720         if (percent < 0){
 721                 percent = 0;
 722         }
 723
 724         next = Credits_artwork_index + 1;
 725         if (next >= NUM_IMAGES){
 726                 next = 0;
 727         }
 728
 729         if (Credits_bmps[Credits_artwork_index] < 0) {
 730                 char buf[40];
 731
 732                 if (gr_screen.res == GR_1024) {
 733                         SDL_snprintf(buf, SDL_arraysize(buf), NOX("2_CrIm%.2d"), Credits_artwork_index);
 734                 } else {
 735                         SDL_snprintf(buf, SDL_arraysize(buf), NOX("CrIm%.2d"), Credits_artwork_index);
 736                 }
 737                 Credits_bmps[Credits_artwork_index] = bm_load(buf);
 738         }
 739
 740         if (Credits_bmps[next] < 0) {
 741                 char buf[40];
 742
 743                 if (gr_screen.res == GR_1024) {
 744                         SDL_snprintf(buf, SDL_arraysize(buf), NOX("2_CrIm%.2d"), Credits_artwork_index);
 745                 } else {
 746                         SDL_snprintf(buf, SDL_arraysize(buf), NOX("CrIm%.2d"), next);
 747                 }
 748                 Credits_bmps[next] = bm_load(buf);
 749         }
 750
 751         bm1 = Credits_bmps[Credits_artwork_index];
 752         bm2 = Credits_bmps[next];
 753
 754         if((bm1 != -1) && (bm2 != -1)){
 755                 SDL_assert(percent >= 0 && percent <= 100);
 756
 757                 // get width and height
 758                 bm_get_info(bm1, &bw1, &bh1, NULL, NULL, NULL);
 759                 bm_get_info(bm2, &bw2, &bh2, NULL, NULL, NULL);
 760
 761                 // determine where to draw the coords
 762                 bx1 = Credits_image_coords[gr_screen.res][CREDITS_X_COORD] + ((Credits_image_coords[gr_screen.res][CREDITS_W_COORD] - bw1)/2);
 763                 by1 = Credits_image_coords[gr_screen.res][CREDITS_Y_COORD] + ((Credits_image_coords[gr_screen.res][CREDITS_H_COORD] - bh1)/2);
 764                 bx2 = Credits_image_coords[gr_screen.res][CREDITS_X_COORD] + ((Credits_image_coords[gr_screen.res][CREDITS_W_COORD] - bw2)/2);
 765                 by2 = Credits_image_coords[gr_screen.res][CREDITS_Y_COORD] + ((Credits_image_coords[gr_screen.res][CREDITS_H_COORD] - bh2)/2);
 766
 767                 gr_cross_fade(bm1, bm2, bx1, by1, bx2, by2, (float)percent / 100.0f);
 768         }
 769
 770 #ifdef MAKE_FS1
 771         if (CreditsWin01 != -1) {
 772                 gr_set_bitmap(CreditsWin01, GR_ALPHABLEND_NONE, GR_BITBLT_MODE_NORMAL, 1.0f, -1, -1);
 773                 gr_bitmap(233, 5);
 774         }
 775
 776         if (CreditsWin02 != -1) {
 777                 gr_set_bitmap(CreditsWin02, GR_ALPHABLEND_NONE, GR_BITBLT_MODE_NORMAL, 1.0f, -1, -1);
 778                 gr_bitmap(616, 8);
 779         }
 780
 781         if (CreditsWin03 != -1) {
 782                 gr_set_bitmap(CreditsWin03, GR_ALPHABLEND_NONE, GR_BITBLT_MODE_NORMAL, 1.0f, -1, -1);
 783                 gr_bitmap(233, 299);
 784         }
 785
 786         if (CreditsWin04 != -1) {
 787                 gr_set_bitmap(CreditsWin04, GR_ALPHABLEND_NONE, GR_BITBLT_MODE_NORMAL, 1.0f, -1, -1);
 788                 gr_bitmap(215, 8);
 789         }
 790 #endif
 791
 792         Ui_window.draw();
 793
 794         for (i=TECH_DATABASE_BUTTON; i<=CREDITS_BUTTON; i++){
 795                 if (Buttons[i][gr_screen.res].button.button_down()){
 796                         break;
 797                 }
 798         }
 799
 800         if (i > CREDITS_BUTTON){
 801                 Buttons[CREDITS_BUTTON][gr_screen.res].button.draw_forced(2);
 802         }
 803
 804         gr_set_clip(Credits_text_coords[gr_screen.res][CREDITS_X_COORD], Credits_text_coords[gr_screen.res][CREDITS_Y_COORD], Credits_text_coords[gr_screen.res][CREDITS_W_COORD], Credits_text_coords[gr_screen.res][CREDITS_H_COORD]);
 805         gr_set_font(FONT1);
 806         gr_set_color_fast(&Color_normal);
 807
 808         int sy;
 809         if ( Credit_position > 0 ) {
 810                 sy = fl2i(Credit_position+0.5f);
 811         } else {
 812                 sy = fl2i(Credit_position-0.5f);
 813         }
 814
 815         gr_string(0x8000, sy, Credit_text);
 816
 817         int temp_time;
 818         temp_time = timer_get_milliseconds();
 819
 820         Credits_frametime = temp_time - Credits_last_time;
 821         Credits_last_time = temp_time;
 822         timestamp_inc(Credits_frametime / 1000.0f);
 823
 824         float fl_frametime = i2fl(Credits_frametime) / 1000.f;
 825         if (key_pressed(SDLK_LSHIFT)) {
 826                 Credit_position -= fl_frametime * CREDITS_SCROLL_RATE * 4.0f;
 827         } else {
 828                 Credit_position -= fl_frametime * CREDITS_SCROLL_RATE;
 829         }
 830
 831         if (Credit_position < Credit_stop_pos){
 832                 Credit_position = Credit_start_pos;
 833         }
 834
 835         Credits_counter += fl_frametime;
 836         while (Credits_counter >= CREDITS_ARTWORK_DISPLAY_TIME) {
 837                 Credits_counter -= CREDITS_ARTWORK_DISPLAY_TIME;
 838                 Credits_artwork_index = next;
 839         }
 840
 841         gr_flip();
 842 }
 843