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                 read_file_text("credits.tbl");
 416                 reset_parse();
 417
 418                 // keep reading everything in
 419                 strcpy(Credit_text,"");
 420 #ifndef MAKE_FS1
 421                 while(!check_for_string_raw("#end")){
 422 #else
 423                 char *ugh = Mp;
 424                 char ch;
 425                 int line_count = 0;
 426
 427                 // get the line count, probably a crappy way to do it but it's the best way i've
 428                 // found to step through the credits without crashing problems since there's no
 429                 // definite end line in FS1
 430                 while (*ugh && *ugh != EOF_CHAR) {
 431                         ch = *ugh;
 432
 433                         if (ch == '\n'){
 434                                 line_count++;
 435                         }
 436                         ugh++;
 437                 }
 438
 439                 while(line_count > 0){
 440                         line_count--;
 441 #endif
 442                         stuff_string_line(line, 511);
 443                         linep1 = line;
 444
 445                         do {
 446                                 linep2 = split_str_once(linep1, Credits_text_coords[gr_screen.res][2]);
 447                                 strcat(Credit_text, linep1);
 448                                 strcat(Credit_text, "\n");
 449                                 linep1 = linep2;
 450                         } while (linep2 != NULL);
 451                 }
 452
 453                 // close localization
 454                 lcl_ext_close();
 455         } else {
 456                 Credit_text = (char *) malloc(25 + 200);
 457                 strcpy(Credit_text, NOX("No credits available.\n"));
 458         }
 459
 460         int ch;
 461         for ( i = 0; Credit_text[i]; i++ ) {
 462                         ch = Credit_text[i];
 463                         switch (ch) {
 464                         case -4:
 465                                 ch = 129;
 466                                 break;
 467
 468                         case -28:
 469                                 ch = 132;
 470                                 break;
 471
 472                         case -10:
 473                                 ch = 148;
 474                                 break;
 475
 476                         case -23:
 477                                 ch = 130;
 478                                 break;
 479
 480                         case -30:
 481                                 ch = 131;
 482                                 break;
 483
 484                         case -25:
 485                                 ch = 135;
 486                                 break;
 487
 488                         case -21:
 489                                 ch = 137;
 490                                 break;
 491
 492                         case -24:
 493                                 ch = 138;
 494                                 break;
 495
 496                         case -17:
 497                                 ch = 139;
 498                                 break;
 499
 500                         case -18:
 501                                 ch = 140;
 502                                 break;
 503
 504                         case -60:
 505                                 ch = 142;
 506                                 break;
 507
 508                         case -55:
 509                                 ch = 144;
 510                                 break;
 511
 512                         case -12:
 513                                 ch = 147;
 514                                 break;
 515
 516                         case -14:
 517                                 ch = 149;
 518                                 break;
 519
 520                         case -5:
 521                                 ch = 150;
 522                                 break;
 523
 524                         case -7:
 525                                 ch = 151;
 526                                 break;
 527
 528                         case -42:
 529                                 ch = 153;
 530                                 break;
 531
 532                         case -36:
 533                                 ch = 154;
 534                                 break;
 535
 536                         case -31:
 537                                 ch = 160;
 538                                 break;
 539
 540                         case -19:
 541                                 ch = 161;
 542                                 break;
 543
 544                         case -13:
 545                                 ch = 162;
 546                                 break;
 547
 548                         case -6:
 549                                 ch = 163;
 550                                 break;
 551
 552                         case -32:
 553                                 ch = 133;
 554                                 break;
 555
 556                         case -22:
 557                                 ch = 136;
 558                                 break;
 559
 560                         case -20:
 561                                 ch = 141;
 562                                 break;
 563                         }
 564                         Credit_text[i] = (char)ch;
 565         }
 566
 567         gr_get_string_size(&w, &h, Credit_text);
 568
 569         Credit_start_pos = i2fl(Credits_text_coords[gr_screen.res][CREDITS_H_COORD]);
 570         Credit_stop_pos = -i2fl(h);
 571         Credit_position = Credit_start_pos;
 572
 573         Ui_window.create(0, 0, gr_screen.max_w, gr_screen.max_h, 0);
 574         Ui_window.set_mask_bmap(Credits_bitmap_mask_fname[gr_screen.res]);
 575         common_set_interface_palette("InterfacePalette");  // set the interface palette
 576
 577         for (i=0; i<NUM_BUTTONS; i++) {
 578                 b = &Buttons[i][gr_screen.res];
 579
 580                 b->button.create(&Ui_window, "", b->x, b->y, 60, 30, (i < 2), 1);
 581                 // set up callback for when a mouse first goes over a button
 582                 b->button.set_highlight_action(common_play_highlight_sound);
 583                 b->button.set_bmaps(b->filename);
 584                 b->button.link_hotspot(b->hotspot);
 585         }
 586
 587 #ifndef MAKE_FS1
 588         // add some text
 589         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);
 590         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);
 591         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);
 592         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);
 593         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);
 594 #endif
 595
 596         if (Player->flags & PLAYER_FLAGS_IS_MULTI) {
 597                 Buttons[SIMULATOR_BUTTON][gr_screen.res].button.disable();
 598                 Buttons[CUTSCENES_BUTTON][gr_screen.res].button.disable();
 599         }
 600
 601         Buttons[EXIT_BUTTON][gr_screen.res].button.set_hotkey(KEY_CTRLED | SDLK_RETURN);
 602
 603         Background_bitmap = bm_load(Credits_bitmap_fname[gr_screen.res]);
 604         Credits_artwork_index = rand() % NUM_IMAGES;
 605         for (i=0; i<NUM_IMAGES; i++){
 606                 Credits_bmps[i] = -1;
 607         }
 608
 609 #ifdef MAKE_FS1
 610         CreditsWin01 = bm_load(NOX("CreditsWin01"));
 611         CreditsWin02 = bm_load(NOX("CreditsWin02"));
 612         CreditsWin03 = bm_load(NOX("CreditsWin03"));
 613         CreditsWin04 = bm_load(NOX("CreditsWin04"));
 614 #endif
 615 }
 616
 617 void credits_close()
 618 {
 619         int i;
 620
 621 #ifdef MAKE_FS1
 622         if (CreditsWin01 != -1){
 623                 bm_unload(CreditsWin01);
 624                 CreditsWin01 = -1;
 625         }
 626         if (CreditsWin02 != -1){
 627                 bm_unload(CreditsWin02);
 628                 CreditsWin02 = -1;
 629         }
 630         if (CreditsWin03 != -1){
 631                 bm_unload(CreditsWin03);
 632                 CreditsWin03 = -1;
 633         }
 634         if (CreditsWin04 != -1){
 635                 bm_unload(CreditsWin04);
 636                 CreditsWin04 = -1;
 637         }
 638 #endif
 639
 640         for (i=0; i<NUM_IMAGES; i++){
 641                 if (Credits_bmps[i] >= 0){
 642                         bm_unload(Credits_bmps[i]);
 643                         Credits_bmps[i] = -1;
 644                 }
 645         }
 646
 647         credits_stop_music();
 648
 649         if (Credit_text) {
 650                 free(Credit_text);
 651                 Credit_text = NULL;
 652         }
 653
 654         if (Background_bitmap){
 655                 bm_unload(Background_bitmap);
 656         }
 657
 658         Ui_window.destroy();
 659         common_free_interface_palette();                // restore game palette
 660 }
 661
 662 void credits_do_frame(float frametime)
 663 {
 664         int i, k, next, percent, bm1, bm2;
 665         int bx1, by1, bw1, bh1;
 666         int bx2, by2, bw2, bh2;
 667
 668         // Use this id to trigger the start of music playing on the credits screen
 669         if ( timestamp_elapsed(Credits_music_begin_timestamp) ) {
 670                 Credits_music_begin_timestamp = 0;
 671                 credits_start_music();
 672         }
 673
 674         k = Ui_window.process();
 675         switch (k) {
 676         case SDLK_ESCAPE:
 677                 gameseq_post_event(GS_EVENT_MAIN_MENU);
 678                 key_flush();
 679                 break;
 680
 681         case KEY_CTRLED | SDLK_UP:
 682         case KEY_SHIFTED | SDLK_TAB:
 683                 if ( !(Player->flags & PLAYER_FLAGS_IS_MULTI) ) {
 684                         credits_screen_button_pressed(CUTSCENES_BUTTON);
 685                         break;
 686                 }
 687                 // else, react like tab key.
 688
 689         case KEY_CTRLED | SDLK_DOWN:
 690         case SDLK_TAB:
 691                 credits_screen_button_pressed(TECH_DATABASE_BUTTON);
 692                 break;
 693
 694         default:
 695                 break;
 696         } // end switch
 697
 698         for (i=0; i<NUM_BUTTONS; i++){
 699                 if (Buttons[i][gr_screen.res].button.pressed()){
 700                         if (credits_screen_button_pressed(i)){
 701                                 return;
 702                         }
 703                 }
 704         }
 705
 706         gr_reset_clip();
 707         GR_MAYBE_CLEAR_RES(Background_bitmap);
 708         if (Background_bitmap >= 0) {
 709                 gr_set_bitmap(Background_bitmap, GR_ALPHABLEND_NONE, GR_BITBLT_MODE_NORMAL, 1.0f, -1, -1);
 710                 gr_bitmap(0, 0);
 711         }
 712
 713         percent = (int) (100.0f - (CREDITS_ARTWORK_DISPLAY_TIME - Credits_counter) * 100.0f / CREDITS_ARTWORK_FADE_TIME);
 714         if (percent < 0){
 715                 percent = 0;
 716         }
 717
 718         next = Credits_artwork_index + 1;
 719         if (next >= NUM_IMAGES){
 720                 next = 0;
 721         }
 722
 723         if (Credits_bmps[Credits_artwork_index] < 0) {
 724                 char buf[40];
 725
 726                 if (gr_screen.res == GR_1024) {
 727                         sprintf(buf, NOX("2_CrIm%.2d"), Credits_artwork_index);
 728                 } else {
 729                         sprintf(buf, NOX("CrIm%.2d"), Credits_artwork_index);
 730                 }
 731                 Credits_bmps[Credits_artwork_index] = bm_load(buf);
 732         }
 733
 734         if (Credits_bmps[next] < 0) {
 735                 char buf[40];
 736
 737                 if (gr_screen.res == GR_1024) {
 738                         sprintf(buf, NOX("2_CrIm%.2d"), Credits_artwork_index);
 739                 } else {
 740                         sprintf(buf, NOX("CrIm%.2d"), next);
 741                 }
 742                 Credits_bmps[next] = bm_load(buf);
 743         }
 744
 745         bm1 = Credits_bmps[Credits_artwork_index];
 746         bm2 = Credits_bmps[next];
 747
 748         if((bm1 != -1) && (bm2 != -1)){
 749                 SDL_assert(percent >= 0 && percent <= 100);
 750
 751                 // get width and height
 752                 bm_get_info(bm1, &bw1, &bh1, NULL, NULL, NULL);
 753                 bm_get_info(bm2, &bw2, &bh2, NULL, NULL, NULL);
 754
 755                 // determine where to draw the coords
 756                 bx1 = Credits_image_coords[gr_screen.res][CREDITS_X_COORD] + ((Credits_image_coords[gr_screen.res][CREDITS_W_COORD] - bw1)/2);
 757                 by1 = Credits_image_coords[gr_screen.res][CREDITS_Y_COORD] + ((Credits_image_coords[gr_screen.res][CREDITS_H_COORD] - bh1)/2);
 758                 bx2 = Credits_image_coords[gr_screen.res][CREDITS_X_COORD] + ((Credits_image_coords[gr_screen.res][CREDITS_W_COORD] - bw2)/2);
 759                 by2 = Credits_image_coords[gr_screen.res][CREDITS_Y_COORD] + ((Credits_image_coords[gr_screen.res][CREDITS_H_COORD] - bh2)/2);
 760
 761                 gr_cross_fade(bm1, bm2, bx1, by1, bx2, by2, (float)percent / 100.0f);
 762         }
 763
 764 #ifdef MAKE_FS1
 765         if (CreditsWin01 != -1) {
 766                 gr_set_bitmap(CreditsWin01, GR_ALPHABLEND_NONE, GR_BITBLT_MODE_NORMAL, 1.0f, -1, -1);
 767                 gr_bitmap(233, 5);
 768         }
 769
 770         if (CreditsWin02 != -1) {
 771                 gr_set_bitmap(CreditsWin02, GR_ALPHABLEND_NONE, GR_BITBLT_MODE_NORMAL, 1.0f, -1, -1);
 772                 gr_bitmap(616, 8);
 773         }
 774
 775         if (CreditsWin03 != -1) {
 776                 gr_set_bitmap(CreditsWin03, GR_ALPHABLEND_NONE, GR_BITBLT_MODE_NORMAL, 1.0f, -1, -1);
 777                 gr_bitmap(233, 299);
 778         }
 779
 780         if (CreditsWin04 != -1) {
 781                 gr_set_bitmap(CreditsWin04, GR_ALPHABLEND_NONE, GR_BITBLT_MODE_NORMAL, 1.0f, -1, -1);
 782                 gr_bitmap(215, 8);
 783         }
 784 #endif
 785
 786         Ui_window.draw();
 787
 788         for (i=TECH_DATABASE_BUTTON; i<=CREDITS_BUTTON; i++){
 789                 if (Buttons[i][gr_screen.res].button.button_down()){
 790                         break;
 791                 }
 792         }
 793
 794         if (i > CREDITS_BUTTON){
 795                 Buttons[CREDITS_BUTTON][gr_screen.res].button.draw_forced(2);
 796         }
 797
 798         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]);
 799         gr_set_font(FONT1);
 800         gr_set_color_fast(&Color_normal);
 801
 802         int sy;
 803         if ( Credit_position > 0 ) {
 804                 sy = fl2i(Credit_position+0.5f);
 805         } else {
 806                 sy = fl2i(Credit_position-0.5f);
 807         }
 808
 809         gr_string(0x8000, sy, Credit_text);
 810
 811         int temp_time;
 812         temp_time = timer_get_milliseconds();
 813
 814         Credits_frametime = temp_time - Credits_last_time;
 815         Credits_last_time = temp_time;
 816         timestamp_inc(Credits_frametime / 1000.0f);
 817
 818         float fl_frametime = i2fl(Credits_frametime) / 1000.f;
 819         if (key_pressed(SDLK_LSHIFT)) {
 820                 Credit_position -= fl_frametime * CREDITS_SCROLL_RATE * 4.0f;
 821         } else {
 822                 Credit_position -= fl_frametime * CREDITS_SCROLL_RATE;
 823         }
 824
 825         if (Credit_position < Credit_stop_pos){
 826                 Credit_position = Credit_start_pos;
 827         }
 828
 829         Credits_counter += fl_frametime;
 830         while (Credits_counter >= CREDITS_ARTWORK_DISPLAY_TIME) {
 831                 Credits_counter -= CREDITS_ARTWORK_DISPLAY_TIME;
 832                 Credits_artwork_index = next;
 833         }
 834
 835         gr_flip();
 836 }
 837