src/tools.c

   1 /***********************************************************
   2 * Rocks'n'Diamonds -- McDuffin Strikes Back!               *
   3 *----------------------------------------------------------*
   4 * (c) 1995-2001 Artsoft Entertainment                      *
   5 *               Holger Schemel                             *
   6 *               Detmolder Strasse 189                      *
   7 *               33604 Bielefeld                            *
   8 *               Germany                                    *
   9 *               e-mail: info@artsoft.org                   *
  10 *----------------------------------------------------------*
  11 * tools.c                                                  *
  12 ***********************************************************/
  13
  14 #include <stdarg.h>
  15
  16 #if defined(PLATFORM_FREEBSD)
  17 #include <machine/joystick.h>
  18 #endif
  19
  20 #include "libgame/libgame.h"
  21
  22 #include "tools.h"
  23 #include "game.h"
  24 #include "events.h"
  25 #include "joystick.h"
  26 #include "cartoons.h"
  27 #include "network.h"
  28 #include "tape.h"
  29
  30 #if defined(PLATFORM_MSDOS)
  31 extern boolean wait_for_vsync;
  32 #endif
  33
  34 /* tool button identifiers */
  35 #define TOOL_CTRL_ID_YES        0
  36 #define TOOL_CTRL_ID_NO         1
  37 #define TOOL_CTRL_ID_CONFIRM    2
  38 #define TOOL_CTRL_ID_PLAYER_1   3
  39 #define TOOL_CTRL_ID_PLAYER_2   4
  40 #define TOOL_CTRL_ID_PLAYER_3   5
  41 #define TOOL_CTRL_ID_PLAYER_4   6
  42
  43 #define NUM_TOOL_BUTTONS        7
  44
  45 /* forward declaration for internal use */
  46 static int getGraphicAnimationPhase(int, int, int);
  47 static void DrawGraphicAnimationShiftedThruMask(int, int, int, int, int,
  48                                                 int, int, int);
  49 static void UnmapToolButtons();
  50 static void HandleToolButtons(struct GadgetInfo *);
  51
  52 static struct GadgetInfo *tool_gadget[NUM_TOOL_BUTTONS];
  53 static int request_gadget_id = -1;
  54
  55 void SetDrawtoField(int mode)
  56 {
  57   if (mode == DRAW_BUFFERED && setup.soft_scrolling)
  58   {
  59     FX = TILEX;
  60     FY = TILEY;
  61     BX1 = -1;
  62     BY1 = -1;
  63     BX2 = SCR_FIELDX;
  64     BY2 = SCR_FIELDY;
  65     redraw_x1 = 1;
  66     redraw_y1 = 1;
  67
  68     drawto_field = fieldbuffer;
  69   }
  70   else  /* DRAW_DIRECT, DRAW_BACKBUFFER */
  71   {
  72     FX = SX;
  73     FY = SY;
  74     BX1 = 0;
  75     BY1 = 0;
  76     BX2 = SCR_FIELDX - 1;
  77     BY2 = SCR_FIELDY - 1;
  78     redraw_x1 = 0;
  79     redraw_y1 = 0;
  80
  81     drawto_field = (mode == DRAW_DIRECT ? window :  backbuffer);
  82   }
  83 }
  84
  85 void BackToFront()
  86 {
  87   int x,y;
  88   DrawBuffer *buffer = (drawto_field == window ? backbuffer : drawto_field);
  89
  90   if (setup.direct_draw && game_status == PLAYING)
  91     redraw_mask &= ~REDRAW_MAIN;
  92
  93   if (redraw_mask & REDRAW_TILES && redraw_tiles > REDRAWTILES_THRESHOLD)
  94     redraw_mask |= REDRAW_FIELD;
  95
  96   if (redraw_mask & REDRAW_FIELD)
  97     redraw_mask &= ~REDRAW_TILES;
  98
  99   if (!redraw_mask)
 100     return;
 101
 102   if (global.fps_slowdown && game_status == PLAYING)
 103   {
 104     static boolean last_frame_skipped = FALSE;
 105     boolean skip_even_when_not_scrolling = TRUE;
 106     boolean just_scrolling = (ScreenMovDir != 0);
 107     boolean verbose = FALSE;
 108
 109     if (global.fps_slowdown_factor > 1 &&
 110         (FrameCounter % global.fps_slowdown_factor) &&
 111         (just_scrolling || skip_even_when_not_scrolling))
 112     {
 113       redraw_mask &= ~REDRAW_MAIN;
 114
 115       last_frame_skipped = TRUE;
 116
 117       if (verbose)
 118         printf("FRAME SKIPPED\n");
 119     }
 120     else
 121     {
 122       if (last_frame_skipped)
 123         redraw_mask |= REDRAW_FIELD;
 124
 125       last_frame_skipped = FALSE;
 126
 127       if (verbose)
 128         printf("frame not skipped\n");
 129     }
 130   }
 131
 132   /* synchronize X11 graphics at this point; if we would synchronize the
 133      display immediately after the buffer switching (after the XFlush),
 134      this could mean that we have to wait for the graphics to complete,
 135      although we could go on doing calculations for the next frame */
 136
 137   SyncDisplay();
 138
 139   if (redraw_mask & REDRAW_ALL)
 140   {
 141     BlitBitmap(backbuffer, window, 0, 0, WIN_XSIZE, WIN_YSIZE, 0, 0);
 142     redraw_mask = 0;
 143   }
 144
 145   if (redraw_mask & REDRAW_FIELD)
 146   {
 147     if (game_status != PLAYING || redraw_mask & REDRAW_FROM_BACKBUFFER)
 148     {
 149       BlitBitmap(backbuffer, window,
 150                  REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE, REAL_SX, REAL_SY);
 151     }
 152     else
 153     {
 154       int fx = FX, fy = FY;
 155
 156       if (setup.soft_scrolling)
 157       {
 158         fx += (ScreenMovDir & (MV_LEFT | MV_RIGHT) ? ScreenGfxPos : 0);
 159         fy += (ScreenMovDir & (MV_UP | MV_DOWN)    ? ScreenGfxPos : 0);
 160       }
 161
 162       if (setup.soft_scrolling ||
 163           ABS(ScreenMovPos) + ScrollStepSize == TILEX ||
 164           ABS(ScreenMovPos) == ScrollStepSize ||
 165           redraw_tiles > REDRAWTILES_THRESHOLD)
 166       {
 167         BlitBitmap(buffer, window, fx, fy, SXSIZE, SYSIZE, SX, SY);
 168
 169 #ifdef DEBUG
 170 #if 0
 171         printf("redrawing all (ScreenGfxPos == %d) because %s\n",
 172                ScreenGfxPos,
 173                (setup.soft_scrolling ?
 174                 "setup.soft_scrolling" :
 175                 ABS(ScreenGfxPos) + ScrollStepSize == TILEX ?
 176                 "ABS(ScreenGfxPos) + ScrollStepSize == TILEX" :
 177                 ABS(ScreenGfxPos) == ScrollStepSize ?
 178                 "ABS(ScreenGfxPos) == ScrollStepSize" :
 179                 "redraw_tiles > REDRAWTILES_THRESHOLD"));
 180 #endif
 181 #endif
 182       }
 183     }
 184
 185     redraw_mask &= ~REDRAW_MAIN;
 186   }
 187
 188   if (redraw_mask & REDRAW_DOORS)
 189   {
 190     if (redraw_mask & REDRAW_DOOR_1)
 191       BlitBitmap(backbuffer, window, DX, DY, DXSIZE, DYSIZE, DX, DY);
 192     if (redraw_mask & REDRAW_DOOR_2)
 193     {
 194       if ((redraw_mask & REDRAW_DOOR_2) == REDRAW_DOOR_2)
 195         BlitBitmap(backbuffer, window, VX,VY, VXSIZE,VYSIZE, VX,VY);
 196       else
 197       {
 198         if (redraw_mask & REDRAW_VIDEO_1)
 199           BlitBitmap(backbuffer, window,
 200                      VX+VIDEO_DISPLAY1_XPOS,VY+VIDEO_DISPLAY1_YPOS,
 201                      VIDEO_DISPLAY_XSIZE,VIDEO_DISPLAY_YSIZE,
 202                      VX+VIDEO_DISPLAY1_XPOS,VY+VIDEO_DISPLAY1_YPOS);
 203         if (redraw_mask & REDRAW_VIDEO_2)
 204           BlitBitmap(backbuffer, window,
 205                      VX+VIDEO_DISPLAY2_XPOS,VY+VIDEO_DISPLAY2_YPOS,
 206                      VIDEO_DISPLAY_XSIZE,VIDEO_DISPLAY_YSIZE,
 207                      VX+VIDEO_DISPLAY2_XPOS,VY+VIDEO_DISPLAY2_YPOS);
 208         if (redraw_mask & REDRAW_VIDEO_3)
 209           BlitBitmap(backbuffer, window,
 210                      VX+VIDEO_CONTROL_XPOS,VY+VIDEO_CONTROL_YPOS,
 211                      VIDEO_CONTROL_XSIZE,VIDEO_CONTROL_YSIZE,
 212                      VX+VIDEO_CONTROL_XPOS,VY+VIDEO_CONTROL_YPOS);
 213       }
 214     }
 215     if (redraw_mask & REDRAW_DOOR_3)
 216       BlitBitmap(backbuffer, window, EX, EY, EXSIZE, EYSIZE, EX, EY);
 217     redraw_mask &= ~REDRAW_DOORS;
 218   }
 219
 220   if (redraw_mask & REDRAW_MICROLEVEL)
 221   {
 222     BlitBitmap(backbuffer, window,
 223                MICROLEV_XPOS, MICROLEV_YPOS, MICROLEV_XSIZE, MICROLEV_YSIZE,
 224                MICROLEV_XPOS, MICROLEV_YPOS);
 225     BlitBitmap(backbuffer, window,
 226                SX, MICROLABEL_YPOS, SXSIZE, FONT4_YSIZE,
 227                SX, MICROLABEL_YPOS);
 228     redraw_mask &= ~REDRAW_MICROLEVEL;
 229   }
 230
 231   if (redraw_mask & REDRAW_TILES)
 232   {
 233     for(x=0; x<SCR_FIELDX; x++)
 234       for(y=0; y<SCR_FIELDY; y++)
 235         if (redraw[redraw_x1 + x][redraw_y1 + y])
 236           BlitBitmap(buffer, window,
 237                      FX + x * TILEX, FX + y * TILEY, TILEX, TILEY,
 238                      SX + x * TILEX, SY + y * TILEY);
 239   }
 240
 241   if (redraw_mask & REDRAW_FPS)         /* display frames per second */
 242   {
 243     char text[100];
 244     char info1[100];
 245
 246     sprintf(info1, " (only every %d. frame)", global.fps_slowdown_factor);
 247     if (!global.fps_slowdown)
 248       info1[0] = '\0';
 249
 250     sprintf(text, "%.1f fps%s", global.frames_per_second, info1);
 251     DrawTextExt(window, SX, SY, text, FS_SMALL, FC_YELLOW);
 252   }
 253
 254   FlushDisplay();
 255
 256   for(x=0; x<MAX_BUF_XSIZE; x++)
 257     for(y=0; y<MAX_BUF_YSIZE; y++)
 258       redraw[x][y] = 0;
 259   redraw_tiles = 0;
 260   redraw_mask = 0;
 261 }
 262
 263 void FadeToFront()
 264 {
 265 #if 0
 266   long fading_delay = 300;
 267
 268   if (setup.fading && (redraw_mask & REDRAW_FIELD))
 269   {
 270 #endif
 271
 272 #if 0
 273     int x,y;
 274
 275     ClearRectangle(window, REAL_SX,REAL_SY,FULL_SXSIZE,FULL_SYSIZE);
 276     FlushDisplay();
 277
 278     for(i=0;i<2*FULL_SYSIZE;i++)
 279     {
 280       for(y=0;y<FULL_SYSIZE;y++)
 281       {
 282         BlitBitmap(backbuffer, window,
 283                    REAL_SX,REAL_SY+i, FULL_SXSIZE,1, REAL_SX,REAL_SY+i);
 284       }
 285       FlushDisplay();
 286       Delay(10);
 287     }
 288 #endif
 289
 290 #if 0
 291     for(i=1;i<FULL_SYSIZE;i+=2)
 292       BlitBitmap(backbuffer, window,
 293                  REAL_SX,REAL_SY+i, FULL_SXSIZE,1, REAL_SX,REAL_SY+i);
 294     FlushDisplay();
 295     Delay(fading_delay);
 296 #endif
 297
 298 #if 0
 299     SetClipOrigin(clip_gc[PIX_FADEMASK], 0, 0);
 300     BlitBitmapMasked(backbuffer, window,
 301                      REAL_SX,REAL_SY, FULL_SXSIZE,FULL_SYSIZE,
 302                      REAL_SX,REAL_SY);
 303     FlushDisplay();
 304     Delay(fading_delay);
 305
 306     SetClipOrigin(clip_gc[PIX_FADEMASK], -1, -1);
 307     BlitBitmapMasked(backbuffer, window,
 308                      REAL_SX,REAL_SY, FULL_SXSIZE,FULL_SYSIZE,
 309                      REAL_SX,REAL_SY);
 310     FlushDisplay();
 311     Delay(fading_delay);
 312
 313     SetClipOrigin(clip_gc[PIX_FADEMASK], 0, -1);
 314     BlitBitmapMasked(backbuffer, window,
 315                      REAL_SX,REAL_SY, FULL_SXSIZE,FULL_SYSIZE,
 316                      REAL_SX,REAL_SY);
 317     FlushDisplay();
 318     Delay(fading_delay);
 319
 320     SetClipOrigin(clip_gc[PIX_FADEMASK], -1, 0);
 321     BlitBitmapMasked(backbuffer, window,
 322                      REAL_SX,REAL_SY, FULL_SXSIZE,FULL_SYSIZE,
 323                      REAL_SX,REAL_SY);
 324     FlushDisplay();
 325     Delay(fading_delay);
 326
 327     redraw_mask &= ~REDRAW_MAIN;
 328   }
 329 #endif
 330
 331   BackToFront();
 332 }
 333
 334 void ClearWindow()
 335 {
 336   ClearRectangle(backbuffer, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
 337
 338   if (setup.soft_scrolling && game_status == PLAYING)
 339   {
 340     ClearRectangle(fieldbuffer, 0, 0, FXSIZE, FYSIZE);
 341     SetDrawtoField(DRAW_BUFFERED);
 342   }
 343   else
 344     SetDrawtoField(DRAW_BACKBUFFER);
 345
 346   if (setup.direct_draw && game_status == PLAYING)
 347   {
 348     ClearRectangle(window, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
 349     SetDrawtoField(DRAW_DIRECT);
 350   }
 351
 352   redraw_mask |= REDRAW_FIELD;
 353 }
 354
 355 void MarkTileDirty(int x, int y)
 356 {
 357   int xx = redraw_x1 + x;
 358   int yy = redraw_y1 + y;
 359
 360   if (!redraw[xx][yy])
 361     redraw_tiles++;
 362
 363   redraw[xx][yy] = TRUE;
 364   redraw_mask |= REDRAW_TILES;
 365 }
 366
 367 void SetBorderElement()
 368 {
 369   int x, y;
 370
 371   BorderElement = EL_LEERRAUM;
 372
 373   for(y=0; y<lev_fieldy && BorderElement == EL_LEERRAUM; y++)
 374   {
 375     for(x=0; x<lev_fieldx; x++)
 376     {
 377       if (!IS_MASSIVE(Feld[x][y]))
 378         BorderElement = EL_BETON;
 379
 380       if (y != 0 && y != lev_fieldy - 1 && x != lev_fieldx - 1)
 381         x = lev_fieldx - 2;
 382     }
 383   }
 384 }
 385
 386 void DrawAllPlayers()
 387 {
 388   int i;
 389
 390   for(i=0; i<MAX_PLAYERS; i++)
 391     if (stored_player[i].active)
 392       DrawPlayer(&stored_player[i]);
 393 }
 394
 395 void DrawPlayerField(int x, int y)
 396 {
 397   if (!IS_PLAYER(x, y))
 398     return;
 399
 400   DrawPlayer(PLAYERINFO(x, y));
 401 }
 402
 403 void DrawPlayer(struct PlayerInfo *player)
 404 {
 405   int jx = player->jx, jy = player->jy;
 406   int last_jx = player->last_jx, last_jy = player->last_jy;
 407   int next_jx = jx + (jx - last_jx), next_jy = jy + (jy - last_jy);
 408   int sx = SCREENX(jx), sy = SCREENY(jy);
 409   int sxx = 0, syy = 0;
 410   int element = Feld[jx][jy], last_element = Feld[last_jx][last_jy];
 411   int graphic, phase;
 412   boolean player_is_moving = (last_jx != jx || last_jy != jy ? TRUE : FALSE);
 413
 414   if (!player->active || !IN_SCR_FIELD(SCREENX(last_jx), SCREENY(last_jy)))
 415     return;
 416
 417 #if DEBUG
 418   if (!IN_LEV_FIELD(jx,jy))
 419   {
 420     printf("DrawPlayerField(): x = %d, y = %d\n",jx,jy);
 421     printf("DrawPlayerField(): sx = %d, sy = %d\n",sx,sy);
 422     printf("DrawPlayerField(): This should never happen!\n");
 423     return;
 424   }
 425 #endif
 426
 427   if (element == EL_EXPLODING)
 428     return;
 429
 430   /* draw things in the field the player is leaving, if needed */
 431
 432   if (player_is_moving)
 433   {
 434     if (Store[last_jx][last_jy] && IS_DRAWABLE(last_element))
 435     {
 436       DrawLevelElement(last_jx, last_jy, Store[last_jx][last_jy]);
 437       DrawLevelFieldThruMask(last_jx, last_jy);
 438     }
 439     else if (last_element == EL_DYNAMITE_ACTIVE)
 440       DrawDynamite(last_jx, last_jy);
 441     else
 442       DrawLevelField(last_jx, last_jy);
 443
 444     if (player->Pushing && IN_SCR_FIELD(SCREENX(next_jx), SCREENY(next_jy)))
 445     {
 446       if (player->GfxPos)
 447       {
 448         if (Feld[next_jx][next_jy] == EL_SOKOBAN_FELD_VOLL)
 449           DrawLevelElement(next_jx, next_jy, EL_SOKOBAN_FELD_LEER);
 450         else
 451           DrawLevelElement(next_jx, next_jy, EL_LEERRAUM);
 452       }
 453       else
 454         DrawLevelField(next_jx, next_jy);
 455     }
 456   }
 457
 458   if (!IN_SCR_FIELD(sx, sy))
 459     return;
 460
 461   if (setup.direct_draw)
 462     SetDrawtoField(DRAW_BUFFERED);
 463
 464   /* draw things behind the player, if needed */
 465
 466   if (Store[jx][jy])
 467     DrawLevelElement(jx, jy, Store[jx][jy]);
 468   else if (!IS_ACTIVE_BOMB(element))
 469     DrawLevelField(jx, jy);
 470
 471   /* draw player himself */
 472
 473   if (game.emulation == EMU_SUPAPLEX)
 474   {
 475     static int last_dir = MV_LEFT;
 476     int action = (player->programmed_action ? player->programmed_action :
 477                   player->action);
 478     boolean action_moving =
 479       (player_is_moving ||
 480        ((action & (MV_LEFT | MV_RIGHT | MV_UP | MV_DOWN)) &&
 481         !(action & ~(MV_LEFT | MV_RIGHT | MV_UP | MV_DOWN))));
 482
 483     graphic = GFX_SP_MURPHY;
 484
 485     if (player->Pushing)
 486     {
 487       if (player->MovDir == MV_LEFT)
 488         graphic = GFX_MURPHY_PUSH_LEFT;
 489       else if (player->MovDir == MV_RIGHT)
 490         graphic = GFX_MURPHY_PUSH_RIGHT;
 491       else if (player->MovDir & (MV_UP | MV_DOWN) && last_dir == MV_LEFT)
 492         graphic = GFX_MURPHY_PUSH_LEFT;
 493       else if (player->MovDir & (MV_UP | MV_DOWN) && last_dir == MV_RIGHT)
 494         graphic = GFX_MURPHY_PUSH_RIGHT;
 495     }
 496     else if (player->snapped)
 497     {
 498       if (player->MovDir == MV_LEFT)
 499         graphic = GFX_MURPHY_SNAP_LEFT;
 500       else if (player->MovDir == MV_RIGHT)
 501         graphic = GFX_MURPHY_SNAP_RIGHT;
 502       else if (player->MovDir == MV_UP)
 503         graphic = GFX_MURPHY_SNAP_UP;
 504       else if (player->MovDir == MV_DOWN)
 505         graphic = GFX_MURPHY_SNAP_DOWN;
 506     }
 507     else if (action_moving)
 508     {
 509       if (player->MovDir == MV_LEFT)
 510         graphic = GFX_MURPHY_GO_LEFT;
 511       else if (player->MovDir == MV_RIGHT)
 512         graphic = GFX_MURPHY_GO_RIGHT;
 513       else if (player->MovDir & (MV_UP | MV_DOWN) && last_dir == MV_LEFT)
 514         graphic = GFX_MURPHY_GO_LEFT;
 515       else if (player->MovDir & (MV_UP | MV_DOWN) && last_dir == MV_RIGHT)
 516         graphic = GFX_MURPHY_GO_RIGHT;
 517       else
 518         graphic = GFX_MURPHY_GO_LEFT;
 519
 520       graphic += getGraphicAnimationPhase(3, 2, ANIM_OSCILLATE);
 521     }
 522
 523     if (player->MovDir == MV_LEFT || player->MovDir == MV_RIGHT)
 524       last_dir = player->MovDir;
 525   }
 526   else
 527   {
 528     if (player->MovDir == MV_LEFT)
 529       graphic =
 530         (player->Pushing ? GFX_SPIELER1_PUSH_LEFT : GFX_SPIELER1_LEFT);
 531     else if (player->MovDir == MV_RIGHT)
 532       graphic =
 533         (player->Pushing ? GFX_SPIELER1_PUSH_RIGHT : GFX_SPIELER1_RIGHT);
 534     else if (player->MovDir == MV_UP)
 535       graphic = GFX_SPIELER1_UP;
 536     else        /* MV_DOWN || MV_NO_MOVING */
 537       graphic = GFX_SPIELER1_DOWN;
 538
 539     graphic += player->index_nr * 3 * HEROES_PER_LINE;
 540     graphic += player->Frame;
 541   }
 542
 543   if (player->GfxPos)
 544   {
 545     if (player->MovDir == MV_LEFT || player->MovDir == MV_RIGHT)
 546       sxx = player->GfxPos;
 547     else
 548       syy = player->GfxPos;
 549   }
 550
 551   if (!setup.soft_scrolling && ScreenMovPos)
 552     sxx = syy = 0;
 553
 554   DrawGraphicShiftedThruMask(sx, sy, sxx, syy, graphic, NO_CUTTING);
 555
 556   if (SHIELD_ON(player))
 557   {
 558     int graphic = (player->shield_active_time_left ? GFX2_SHIELD_ACTIVE :
 559                    GFX2_SHIELD_PASSIVE);
 560
 561     DrawGraphicAnimationShiftedThruMask(sx, sy, sxx, syy, graphic,
 562                                         3, 8, ANIM_OSCILLATE);
 563   }
 564
 565   if (player->Pushing && player->GfxPos)
 566   {
 567     int px = SCREENX(next_jx), py = SCREENY(next_jy);
 568
 569     if (element == EL_SOKOBAN_FELD_LEER ||
 570         Feld[next_jx][next_jy] == EL_SOKOBAN_FELD_VOLL)
 571       DrawGraphicShiftedThruMask(px, py, sxx, syy, GFX_SOKOBAN_OBJEKT,
 572                                  NO_CUTTING);
 573     else
 574     {
 575       int element = Feld[next_jx][next_jy];
 576       int graphic = el2gfx(element);
 577
 578       if ((element == EL_FELSBROCKEN ||
 579            element == EL_SP_ZONK ||
 580            element == EL_BD_ROCK) && sxx)
 581       {
 582         int phase = (player->GfxPos / (TILEX / 4));
 583
 584         if (player->MovDir == MV_LEFT)
 585           graphic += phase;
 586         else
 587           graphic += (phase + 4) % 4;
 588       }
 589
 590       DrawGraphicShifted(px, py, sxx, syy, graphic, NO_CUTTING, NO_MASKING);
 591     }
 592   }
 593
 594   /* draw things in front of player (active dynamite or dynabombs) */
 595
 596   if (IS_ACTIVE_BOMB(element))
 597   {
 598     graphic = el2gfx(element);
 599
 600     if (element == EL_DYNAMITE_ACTIVE)
 601     {
 602       if ((phase = (96 - MovDelay[jx][jy]) / 12) > 6)
 603         phase = 6;
 604     }
 605     else
 606     {
 607       if ((phase = ((96 - MovDelay[jx][jy]) / 6) % 8) > 3)
 608         phase = 7 - phase;
 609     }
 610
 611     if (game.emulation == EMU_SUPAPLEX)
 612       DrawGraphic(sx, sy, GFX_SP_DISK_RED);
 613     else
 614       DrawGraphicThruMask(sx, sy, graphic + phase);
 615   }
 616
 617   if (player_is_moving && last_element == EL_EXPLODING)
 618   {
 619     int phase = Frame[last_jx][last_jy];
 620     int delay = 2;
 621
 622     if (phase > 2)
 623       DrawGraphicThruMask(SCREENX(last_jx), SCREENY(last_jy),
 624                           GFX_EXPLOSION + ((phase - 1) / delay - 1));
 625   }
 626
 627   /* draw elements that stay over the player */
 628   /* handle the field the player is leaving ... */
 629   if (player_is_moving && IS_OVER_PLAYER(last_element))
 630     DrawLevelField(last_jx, last_jy);
 631   /* ... and the field the player is entering */
 632   if (IS_OVER_PLAYER(element))
 633     DrawLevelField(jx, jy);
 634
 635   if (setup.direct_draw)
 636   {
 637     int dest_x = SX + SCREENX(MIN(jx, last_jx)) * TILEX;
 638     int dest_y = SY + SCREENY(MIN(jy, last_jy)) * TILEY;
 639     int x_size = TILEX * (1 + ABS(jx - last_jx));
 640     int y_size = TILEY * (1 + ABS(jy - last_jy));
 641
 642     BlitBitmap(drawto_field, window,
 643                dest_x, dest_y, x_size, y_size, dest_x, dest_y);
 644     SetDrawtoField(DRAW_DIRECT);
 645   }
 646
 647   MarkTileDirty(sx,sy);
 648 }
 649
 650 static int getGraphicAnimationPhase(int frames, int delay, int mode)
 651 {
 652   int phase;
 653
 654   if (mode == ANIM_OSCILLATE)
 655   {
 656     int max_anim_frames = 2 * frames - 2;
 657     phase = (FrameCounter % (delay * max_anim_frames)) / delay;
 658     phase = (phase < frames ? phase : max_anim_frames - phase);
 659   }
 660   else
 661     phase = (FrameCounter % (delay * frames)) / delay;
 662
 663   if (mode == ANIM_REVERSE)
 664     phase = -phase;
 665
 666   return(phase);
 667 }
 668
 669 void DrawGraphicAnimationExt(int x, int y, int graphic,
 670                              int frames, int delay, int mode, int mask_mode)
 671 {
 672   int phase = getGraphicAnimationPhase(frames, delay, mode);
 673
 674   if (!(FrameCounter % delay) && IN_SCR_FIELD(SCREENX(x), SCREENY(y)))
 675   {
 676     if (mask_mode == USE_MASKING)
 677       DrawGraphicThruMask(SCREENX(x), SCREENY(y), graphic + phase);
 678     else
 679       DrawGraphic(SCREENX(x), SCREENY(y), graphic + phase);
 680   }
 681 }
 682
 683 void DrawGraphicAnimation(int x, int y, int graphic,
 684                           int frames, int delay, int mode)
 685 {
 686   DrawGraphicAnimationExt(x, y, graphic, frames, delay, mode, NO_MASKING);
 687 }
 688
 689 void DrawGraphicAnimationThruMask(int x, int y, int graphic,
 690                                   int frames, int delay, int mode)
 691 {
 692   DrawGraphicAnimationExt(x, y, graphic, frames, delay, mode, USE_MASKING);
 693 }
 694
 695 static void DrawGraphicAnimationShiftedThruMask(int sx, int sy,
 696                                                 int sxx, int syy,
 697                                                 int graphic,
 698                                                 int frames, int delay,
 699                                                 int mode)
 700 {
 701   int phase = getGraphicAnimationPhase(frames, delay, mode);
 702
 703   DrawGraphicShiftedThruMask(sx, sy, sxx, syy, graphic + phase, NO_CUTTING);
 704 }
 705
 706 void getGraphicSource(int graphic, int *bitmap_nr, int *x, int *y)
 707 {
 708   if (graphic >= GFX_START_ROCKSSCREEN && graphic <= GFX_END_ROCKSSCREEN)
 709   {
 710     graphic -= GFX_START_ROCKSSCREEN;
 711     *bitmap_nr = PIX_BACK;
 712     *x = SX + (graphic % GFX_PER_LINE) * TILEX;
 713     *y = SY + (graphic / GFX_PER_LINE) * TILEY;
 714   }
 715   else if (graphic >= GFX_START_ROCKSHEROES && graphic <= GFX_END_ROCKSHEROES)
 716   {
 717     graphic -= GFX_START_ROCKSHEROES;
 718     *bitmap_nr = PIX_HEROES;
 719     *x = (graphic % HEROES_PER_LINE) * TILEX;
 720     *y = (graphic / HEROES_PER_LINE) * TILEY;
 721   }
 722   else if (graphic >= GFX_START_ROCKSSP && graphic <= GFX_END_ROCKSSP)
 723   {
 724     graphic -= GFX_START_ROCKSSP;
 725     *bitmap_nr = PIX_SP;
 726     *x = (graphic % SP_PER_LINE) * TILEX;
 727     *y = (graphic / SP_PER_LINE) * TILEY;
 728   }
 729   else if (graphic >= GFX_START_ROCKSDC && graphic <= GFX_END_ROCKSDC)
 730   {
 731     graphic -= GFX_START_ROCKSDC;
 732     *bitmap_nr = PIX_DC;
 733     *x = (graphic % DC_PER_LINE) * TILEX;
 734     *y = (graphic / DC_PER_LINE) * TILEY;
 735   }
 736   else if (graphic >= GFX_START_ROCKSMORE && graphic <= GFX_END_ROCKSMORE)
 737   {
 738     graphic -= GFX_START_ROCKSMORE;
 739     *bitmap_nr = PIX_MORE;
 740     *x = (graphic % MORE_PER_LINE) * TILEX;
 741     *y = (graphic / MORE_PER_LINE) * TILEY;
 742   }
 743   else if (graphic >= GFX_START_ROCKSFONT && graphic <= GFX_END_ROCKSFONT)
 744   {
 745     graphic -= GFX_START_ROCKSFONT;
 746     *bitmap_nr = PIX_BIGFONT;
 747     *x = (graphic % FONT_CHARS_PER_LINE) * TILEX;
 748     *y = ((graphic / FONT_CHARS_PER_LINE) * TILEY +
 749           FC_SPECIAL1 * FONT_LINES_PER_FONT * TILEY);
 750   }
 751   else
 752   {
 753     *bitmap_nr = PIX_SP;
 754     *x = 0;
 755     *y = 0;
 756   }
 757 }
 758
 759 void DrawGraphic(int x, int y, int graphic)
 760 {
 761 #if DEBUG
 762   if (!IN_SCR_FIELD(x,y))
 763   {
 764     printf("DrawGraphic(): x = %d, y = %d, graphic = %d\n",x,y,graphic);
 765     printf("DrawGraphic(): This should never happen!\n");
 766     return;
 767   }
 768 #endif
 769
 770   DrawGraphicExt(drawto_field, FX + x*TILEX, FY + y*TILEY, graphic);
 771   MarkTileDirty(x,y);
 772 }
 773
 774 void DrawGraphicExt(DrawBuffer *bitmap, int x, int y, int graphic)
 775 {
 776   int bitmap_nr;
 777   int src_x, src_y;
 778
 779   getGraphicSource(graphic, &bitmap_nr, &src_x, &src_y);
 780   BlitBitmap(pix[bitmap_nr], bitmap, src_x, src_y, TILEX, TILEY, x, y);
 781 }
 782
 783 void DrawGraphicThruMask(int x, int y, int graphic)
 784 {
 785 #if DEBUG
 786   if (!IN_SCR_FIELD(x,y))
 787   {
 788     printf("DrawGraphicThruMask(): x = %d,y = %d, graphic = %d\n",x,y,graphic);
 789     printf("DrawGraphicThruMask(): This should never happen!\n");
 790     return;
 791   }
 792 #endif
 793
 794   DrawGraphicThruMaskExt(drawto_field, FX + x*TILEX, FY + y*TILEY, graphic);
 795   MarkTileDirty(x,y);
 796 }
 797
 798 void DrawGraphicThruMaskExt(DrawBuffer *d, int dest_x, int dest_y, int graphic)
 799 {
 800   int tile = graphic;
 801   int bitmap_nr;
 802   int src_x, src_y;
 803   Bitmap *src_bitmap;
 804   GC drawing_gc;
 805
 806   if (graphic == GFX_LEERRAUM)
 807     return;
 808
 809   getGraphicSource(graphic, &bitmap_nr, &src_x, &src_y);
 810   src_bitmap = pix[bitmap_nr];
 811   drawing_gc = pix[bitmap_nr]->stored_clip_gc;
 812
 813   if (tile_clipmask[tile] != None)
 814   {
 815     SetClipMask(src_bitmap, tile_clip_gc, tile_clipmask[tile]);
 816     SetClipOrigin(src_bitmap, tile_clip_gc, dest_x, dest_y);
 817     BlitBitmapMasked(src_bitmap, d,
 818                      src_x, src_y, TILEX, TILEY, dest_x, dest_y);
 819   }
 820   else
 821   {
 822 #if DEBUG
 823 #ifndef TARGET_SDL
 824     printf("DrawGraphicThruMask(): tile '%d' needs clipping!\n", tile);
 825 #endif
 826 #endif
 827
 828     SetClipOrigin(src_bitmap, drawing_gc, dest_x-src_x, dest_y-src_y);
 829     BlitBitmapMasked(src_bitmap, d,
 830                      src_x, src_y, TILEX, TILEY, dest_x, dest_y);
 831   }
 832 }
 833
 834 void DrawMiniGraphic(int x, int y, int graphic)
 835 {
 836   DrawMiniGraphicExt(drawto, SX + x*MINI_TILEX, SY + y*MINI_TILEY, graphic);
 837   MarkTileDirty(x/2, y/2);
 838 }
 839
 840 void getMiniGraphicSource(int graphic, Bitmap **bitmap, int *x, int *y)
 841 {
 842   if (graphic >= GFX_START_ROCKSSCREEN && graphic <= GFX_END_ROCKSSCREEN)
 843   {
 844     graphic -= GFX_START_ROCKSSCREEN;
 845     *bitmap = pix[PIX_BACK];
 846     *x = MINI_GFX_STARTX + (graphic % MINI_GFX_PER_LINE) * MINI_TILEX;
 847     *y = MINI_GFX_STARTY + (graphic / MINI_GFX_PER_LINE) * MINI_TILEY;
 848   }
 849   else if (graphic >= GFX_START_ROCKSSP && graphic <= GFX_END_ROCKSSP)
 850   {
 851     graphic -= GFX_START_ROCKSSP;
 852     graphic -= ((graphic / SP_PER_LINE) * SP_PER_LINE) / 2;
 853     *bitmap = pix[PIX_SP];
 854     *x = MINI_SP_STARTX + (graphic % MINI_SP_PER_LINE) * MINI_TILEX;
 855     *y = MINI_SP_STARTY + (graphic / MINI_SP_PER_LINE) * MINI_TILEY;
 856   }
 857   else if (graphic >= GFX_START_ROCKSDC && graphic <= GFX_END_ROCKSDC)
 858   {
 859     graphic -= GFX_START_ROCKSDC;
 860     *bitmap = pix[PIX_DC];
 861     *x = MINI_DC_STARTX + (graphic % MINI_DC_PER_LINE) * MINI_TILEX;
 862     *y = MINI_DC_STARTY + (graphic / MINI_DC_PER_LINE) * MINI_TILEY;
 863   }
 864   else if (graphic >= GFX_START_ROCKSMORE && graphic <= GFX_END_ROCKSMORE)
 865   {
 866     graphic -= GFX_START_ROCKSMORE;
 867     *bitmap = pix[PIX_MORE];
 868     *x = MINI_MORE_STARTX + (graphic % MINI_MORE_PER_LINE) * MINI_TILEX;
 869     *y = MINI_MORE_STARTY + (graphic / MINI_MORE_PER_LINE) * MINI_TILEY;
 870   }
 871   else if (graphic >= GFX_START_ROCKSFONT && graphic <= GFX_END_ROCKSFONT)
 872   {
 873     graphic -= GFX_START_ROCKSFONT;
 874     *bitmap = pix[PIX_SMALLFONT];
 875     *x = (graphic % FONT_CHARS_PER_LINE) * FONT4_XSIZE;
 876     *y = ((graphic / FONT_CHARS_PER_LINE) * FONT4_YSIZE +
 877               FC_SPECIAL2 * FONT2_YSIZE * FONT_LINES_PER_FONT);
 878   }
 879   else
 880   {
 881     *bitmap = pix[PIX_SP];
 882     *x = MINI_SP_STARTX;
 883     *y = MINI_SP_STARTY;
 884   }
 885 }
 886
 887 void DrawMiniGraphicExt(DrawBuffer *d, int x, int y, int graphic)
 888 {
 889   Bitmap *bitmap;
 890   int src_x, src_y;
 891
 892   getMiniGraphicSource(graphic, &bitmap, &src_x, &src_y);
 893   BlitBitmap(bitmap, d, src_x, src_y, MINI_TILEX, MINI_TILEY, x, y);
 894 }
 895
 896 void DrawGraphicShifted(int x,int y, int dx,int dy, int graphic,
 897                         int cut_mode, int mask_mode)
 898 {
 899   int width = TILEX, height = TILEY;
 900   int cx = 0, cy = 0;
 901   int src_x, src_y, dest_x, dest_y;
 902   int tile = graphic;
 903   int bitmap_nr;
 904   Bitmap *src_bitmap;
 905   GC drawing_gc;
 906
 907   if (graphic < 0)
 908   {
 909     DrawGraphic(x, y, graphic);
 910     return;
 911   }
 912
 913   if (dx || dy)                 /* Verschiebung der Grafik? */
 914   {
 915     if (x < BX1)                /* Element kommt von links ins Bild */
 916     {
 917       x = BX1;
 918       width = dx;
 919       cx = TILEX - dx;
 920       dx = 0;
 921     }
 922     else if (x > BX2)           /* Element kommt von rechts ins Bild */
 923     {
 924       x = BX2;
 925       width = -dx;
 926       dx = TILEX + dx;
 927     }
 928     else if (x==BX1 && dx < 0)  /* Element verläßt links das Bild */
 929     {
 930       width += dx;
 931       cx = -dx;
 932       dx = 0;
 933     }
 934     else if (x==BX2 && dx > 0)  /* Element verläßt rechts das Bild */
 935       width -= dx;
 936     else if (dx)                /* allg. Bewegung in x-Richtung */
 937       MarkTileDirty(x + SIGN(dx), y);
 938
 939     if (y < BY1)                /* Element kommt von oben ins Bild */
 940     {
 941       if (cut_mode==CUT_BELOW)  /* Element oberhalb des Bildes */
 942         return;
 943
 944       y = BY1;
 945       height = dy;
 946       cy = TILEY - dy;
 947       dy = 0;
 948     }
 949     else if (y > BY2)           /* Element kommt von unten ins Bild */
 950     {
 951       y = BY2;
 952       height = -dy;
 953       dy = TILEY + dy;
 954     }
 955     else if (y==BY1 && dy < 0)  /* Element verläßt oben das Bild */
 956     {
 957       height += dy;
 958       cy = -dy;
 959       dy = 0;
 960     }
 961     else if (dy > 0 && cut_mode == CUT_ABOVE)
 962     {
 963       if (y == BY2)             /* Element unterhalb des Bildes */
 964         return;
 965
 966       height = dy;
 967       cy = TILEY - dy;
 968       dy = TILEY;
 969       MarkTileDirty(x, y + 1);
 970     }                           /* Element verläßt unten das Bild */
 971     else if (dy > 0 && (y == BY2 || cut_mode == CUT_BELOW))
 972       height -= dy;
 973     else if (dy)                /* allg. Bewegung in y-Richtung */
 974       MarkTileDirty(x, y + SIGN(dy));
 975   }
 976
 977   getGraphicSource(graphic, &bitmap_nr, &src_x, &src_y);
 978   src_bitmap = pix[bitmap_nr];
 979   drawing_gc = pix[bitmap_nr]->stored_clip_gc;
 980
 981   src_x += cx;
 982   src_y += cy;
 983
 984   dest_x = FX + x * TILEX + dx;
 985   dest_y = FY + y * TILEY + dy;
 986
 987 #if DEBUG
 988   if (!IN_SCR_FIELD(x,y))
 989   {
 990     printf("DrawGraphicShifted(): x = %d, y = %d, graphic = %d\n",x,y,graphic);
 991     printf("DrawGraphicShifted(): This should never happen!\n");
 992     return;
 993   }
 994 #endif
 995
 996   if (mask_mode == USE_MASKING)
 997   {
 998     if (tile_clipmask[tile] != None)
 999     {
1000       SetClipMask(src_bitmap, tile_clip_gc, tile_clipmask[tile]);
1001       SetClipOrigin(src_bitmap, tile_clip_gc, dest_x, dest_y);
1002       BlitBitmapMasked(src_bitmap, drawto_field,
1003                        src_x, src_y, TILEX, TILEY, dest_x, dest_y);
1004     }
1005     else
1006     {
1007 #if DEBUG
1008 #ifndef TARGET_SDL
1009       printf("DrawGraphicShifted(): tile '%d' needs clipping!\n", tile);
1010 #endif
1011 #endif
1012
1013       SetClipOrigin(src_bitmap, drawing_gc, dest_x - src_x, dest_y - src_y);
1014       BlitBitmapMasked(src_bitmap, drawto_field,
1015                        src_x, src_y, width, height, dest_x, dest_y);
1016     }
1017   }
1018   else
1019     BlitBitmap(pix[bitmap_nr], drawto_field,
1020                src_x, src_y, width, height, dest_x, dest_y);
1021
1022   MarkTileDirty(x,y);
1023 }
1024
1025 void DrawGraphicShiftedThruMask(int x,int y, int dx,int dy, int graphic,
1026                                 int cut_mode)
1027 {
1028   DrawGraphicShifted(x,y, dx,dy, graphic, cut_mode, USE_MASKING);
1029 }
1030
1031 void DrawScreenElementExt(int x, int y, int dx, int dy, int element,
1032                           int cut_mode, int mask_mode)
1033 {
1034   int ux = LEVELX(x), uy = LEVELY(y);
1035   int graphic = el2gfx(element);
1036   int phase8 = ABS(MovPos[ux][uy]) / (TILEX / 8);
1037   int phase4 = phase8 / 2;
1038   int phase2  = phase8 / 4;
1039   int dir = MovDir[ux][uy];
1040
1041   if (element == EL_PACMAN || element == EL_KAEFER || element == EL_FLIEGER)
1042   {
1043     graphic += 4 * !phase2;
1044
1045     if (dir == MV_UP)
1046       graphic += 1;
1047     else if (dir == MV_LEFT)
1048       graphic += 2;
1049     else if (dir == MV_DOWN)
1050       graphic += 3;
1051   }
1052   else if (element == EL_SP_SNIKSNAK)
1053   {
1054     if (dir == MV_LEFT)
1055       graphic = GFX_SP_SNIKSNAK_LEFT;
1056     else if (dir == MV_RIGHT)
1057       graphic = GFX_SP_SNIKSNAK_RIGHT;
1058     else if (dir == MV_UP)
1059       graphic = GFX_SP_SNIKSNAK_UP;
1060     else
1061       graphic = GFX_SP_SNIKSNAK_DOWN;
1062
1063     graphic += (phase8 < 4 ? phase8 : 7 - phase8);
1064   }
1065   else if (element == EL_SP_ELECTRON)
1066   {
1067     graphic = GFX2_SP_ELECTRON + getGraphicAnimationPhase(8, 2, ANIM_NORMAL);
1068   }
1069   else if (element == EL_MOLE || element == EL_PINGUIN ||
1070            element == EL_SCHWEIN || element == EL_DRACHE)
1071   {
1072     if (dir == MV_LEFT)
1073       graphic = (element == EL_MOLE ? GFX_MOLE_LEFT :
1074                  element == EL_PINGUIN ? GFX_PINGUIN_LEFT :
1075                  element == EL_SCHWEIN ? GFX_SCHWEIN_LEFT : GFX_DRACHE_LEFT);
1076     else if (dir == MV_RIGHT)
1077       graphic = (element == EL_MOLE ? GFX_MOLE_RIGHT :
1078                  element == EL_PINGUIN ? GFX_PINGUIN_RIGHT :
1079                  element == EL_SCHWEIN ? GFX_SCHWEIN_RIGHT : GFX_DRACHE_RIGHT);
1080     else if (dir == MV_UP)
1081       graphic = (element == EL_MOLE ? GFX_MOLE_UP :
1082                  element == EL_PINGUIN ? GFX_PINGUIN_UP :
1083                  element == EL_SCHWEIN ? GFX_SCHWEIN_UP : GFX_DRACHE_UP);
1084     else
1085       graphic = (element == EL_MOLE ? GFX_MOLE_DOWN :
1086                  element == EL_PINGUIN ? GFX_PINGUIN_DOWN :
1087                  element == EL_SCHWEIN ? GFX_SCHWEIN_DOWN : GFX_DRACHE_DOWN);
1088
1089     graphic += phase4;
1090   }
1091   else if (element == EL_SONDE)
1092   {
1093     graphic = GFX_SONDE_START + getGraphicAnimationPhase(8, 2, ANIM_NORMAL);
1094   }
1095   else if (element == EL_SALZSAEURE)
1096   {
1097     graphic = GFX_GEBLUBBER + getGraphicAnimationPhase(4, 10, ANIM_NORMAL);
1098   }
1099   else if (element == EL_BUTTERFLY || element == EL_FIREFLY)
1100   {
1101     graphic += !phase2;
1102   }
1103   else if (element == EL_BALLOON)
1104   {
1105     graphic += phase4;
1106   }
1107   else if ((element == EL_FELSBROCKEN ||
1108             element == EL_SP_ZONK ||
1109             element == EL_BD_ROCK ||
1110             IS_GEM(element)) && !cut_mode)
1111   {
1112     if (uy >= lev_fieldy-1 || !IS_BELT(Feld[ux][uy+1]))
1113     {
1114       if (element == EL_FELSBROCKEN ||
1115           element == EL_SP_ZONK ||
1116           element == EL_BD_ROCK)
1117       {
1118         if (dir == MV_LEFT)
1119           graphic += (4 - phase4) % 4;
1120         else if (dir == MV_RIGHT)
1121           graphic += phase4;
1122         else
1123           graphic += phase2 * 2;
1124       }
1125       else if (element != EL_SP_INFOTRON)
1126         graphic += phase2;
1127     }
1128   }
1129   else if (element == EL_MAGIC_WALL_EMPTY ||
1130            element == EL_MAGIC_WALL_EMPTYING ||
1131            element == EL_MAGIC_WALL_BD_EMPTY ||
1132            element == EL_MAGIC_WALL_BD_EMPTYING ||
1133            element == EL_MAGIC_WALL_FULL ||
1134            element == EL_MAGIC_WALL_BD_FULL)
1135   {
1136     graphic += 3 + getGraphicAnimationPhase(4, 4, ANIM_REVERSE);
1137   }
1138   else if (IS_AMOEBOID(element))
1139   {
1140     graphic = (element == EL_AMOEBE_TOT ? GFX_AMOEBE_TOT : GFX_AMOEBE_LEBT);
1141     graphic += (x + 2 * y + 4) % 4;
1142   }
1143   else if (element == EL_MAUER_LEBT)
1144   {
1145     boolean links_massiv = FALSE, rechts_massiv = FALSE;
1146
1147     if (!IN_LEV_FIELD(ux-1, uy) || IS_MAUER(Feld[ux-1][uy]))
1148       links_massiv = TRUE;
1149     if (!IN_LEV_FIELD(ux+1, uy) || IS_MAUER(Feld[ux+1][uy]))
1150       rechts_massiv = TRUE;
1151
1152     if (links_massiv && rechts_massiv)
1153       graphic = GFX_MAUERWERK;
1154     else if (links_massiv)
1155       graphic = GFX_MAUER_R;
1156     else if (rechts_massiv)
1157       graphic = GFX_MAUER_L;
1158   }
1159   else if ((element == EL_INVISIBLE_STEEL ||
1160             element == EL_UNSICHTBAR ||
1161             element == EL_SAND_INVISIBLE) && game.light_time_left)
1162   {
1163     graphic = (element == EL_INVISIBLE_STEEL ? GFX_INVISIBLE_STEEL_ON :
1164                element == EL_UNSICHTBAR ? GFX_UNSICHTBAR_ON :
1165                GFX_SAND_INVISIBLE_ON);
1166   }
1167
1168   if (dx || dy)
1169     DrawGraphicShifted(x, y, dx, dy, graphic, cut_mode, mask_mode);
1170   else if (mask_mode == USE_MASKING)
1171     DrawGraphicThruMask(x, y, graphic);
1172   else
1173     DrawGraphic(x, y, graphic);
1174 }
1175
1176 void DrawLevelElementExt(int x, int y, int dx, int dy, int element,
1177                          int cut_mode, int mask_mode)
1178 {
1179   if (IN_LEV_FIELD(x, y) && IN_SCR_FIELD(SCREENX(x), SCREENY(y)))
1180     DrawScreenElementExt(SCREENX(x), SCREENY(y), dx, dy, element,
1181                          cut_mode, mask_mode);
1182 }
1183
1184 void DrawScreenElementShifted(int x, int y, int dx, int dy, int element,
1185                               int cut_mode)
1186 {
1187   DrawScreenElementExt(x, y, dx, dy, element, cut_mode, NO_MASKING);
1188 }
1189
1190 void DrawLevelElementShifted(int x, int y, int dx, int dy, int element,
1191                              int cut_mode)
1192 {
1193   DrawLevelElementExt(x, y, dx, dy, element, cut_mode, NO_MASKING);
1194 }
1195
1196 void DrawScreenElementThruMask(int x, int y, int element)
1197 {
1198   DrawScreenElementExt(x, y, 0, 0, element, NO_CUTTING, USE_MASKING);
1199 }
1200
1201 void DrawLevelElementThruMask(int x, int y, int element)
1202 {
1203   DrawLevelElementExt(x, y, 0, 0, element, NO_CUTTING, USE_MASKING);
1204 }
1205
1206 void DrawLevelFieldThruMask(int x, int y)
1207 {
1208   DrawLevelElementExt(x, y, 0, 0, Feld[x][y], NO_CUTTING, USE_MASKING);
1209 }
1210
1211 void ErdreichAnbroeckeln(int x, int y)
1212 {
1213   int i, width, height, cx,cy;
1214   int ux = LEVELX(x), uy = LEVELY(y);
1215   int element, graphic;
1216   int snip = 4;
1217   static int xy[4][2] =
1218   {
1219     { 0, -1 },
1220     { -1, 0 },
1221     { +1, 0 },
1222     { 0, +1 }
1223   };
1224
1225   if (!IN_LEV_FIELD(ux, uy))
1226     return;
1227
1228   element = Feld[ux][uy];
1229
1230   if (element == EL_ERDREICH ||
1231       element == EL_LANDMINE ||
1232       element == EL_TRAP_INACTIVE ||
1233       element == EL_TRAP_ACTIVE)
1234   {
1235     if (!IN_SCR_FIELD(x, y))
1236       return;
1237
1238     graphic = GFX_ERDENRAND;
1239
1240     for(i=0; i<4; i++)
1241     {
1242       int uxx, uyy;
1243
1244       uxx = ux + xy[i][0];
1245       uyy = uy + xy[i][1];
1246       if (!IN_LEV_FIELD(uxx, uyy))
1247         element = EL_BETON;
1248       else
1249         element = Feld[uxx][uyy];
1250
1251       if (element == EL_ERDREICH ||
1252           element == EL_LANDMINE ||
1253           element == EL_TRAP_INACTIVE ||
1254           element == EL_TRAP_ACTIVE)
1255         continue;
1256
1257       if (i == 1 || i == 2)
1258       {
1259         width = snip;
1260         height = TILEY;
1261         cx = (i == 2 ? TILEX - snip : 0);
1262         cy = 0;
1263       }
1264       else
1265       {
1266         width = TILEX;
1267         height = snip;
1268         cx = 0;
1269         cy = (i == 3 ? TILEY - snip : 0);
1270       }
1271
1272       BlitBitmap(pix[PIX_BACK], drawto_field,
1273                  SX + (graphic % GFX_PER_LINE) * TILEX + cx,
1274                  SY + (graphic / GFX_PER_LINE) * TILEY + cy,
1275                  width, height, FX + x * TILEX + cx, FY + y * TILEY + cy);
1276     }
1277
1278     MarkTileDirty(x, y);
1279   }
1280   else
1281   {
1282     graphic = GFX_ERDENRAND;
1283
1284     for(i=0; i<4; i++)
1285     {
1286       int xx, yy, uxx, uyy;
1287
1288       xx = x + xy[i][0];
1289       yy = y + xy[i][1];
1290       uxx = ux + xy[i][0];
1291       uyy = uy + xy[i][1];
1292
1293       if (!IN_LEV_FIELD(uxx, uyy) ||
1294           (Feld[uxx][uyy] != EL_ERDREICH &&
1295            Feld[uxx][uyy] != EL_LANDMINE &&
1296            Feld[uxx][uyy] != EL_TRAP_INACTIVE &&
1297            Feld[uxx][uyy] != EL_TRAP_ACTIVE) ||
1298           !IN_SCR_FIELD(xx, yy))
1299         continue;
1300
1301       if (i == 1 || i == 2)
1302       {
1303         width = snip;
1304         height = TILEY;
1305         cx = (i == 1 ? TILEX - snip : 0);
1306         cy = 0;
1307       }
1308       else
1309       {
1310         width = TILEX;
1311         height = snip;
1312         cx = 0;
1313         cy = (i==0 ? TILEY-snip : 0);
1314       }
1315
1316       BlitBitmap(pix[PIX_BACK], drawto_field,
1317                  SX + (graphic % GFX_PER_LINE) * TILEX + cx,
1318                  SY + (graphic / GFX_PER_LINE) * TILEY + cy,
1319                  width, height, FX + xx * TILEX + cx, FY + yy * TILEY + cy);
1320
1321       MarkTileDirty(xx, yy);
1322     }
1323   }
1324 }
1325
1326 void DrawScreenElement(int x, int y, int element)
1327 {
1328   DrawScreenElementExt(x, y, 0, 0, element, NO_CUTTING, NO_MASKING);
1329   ErdreichAnbroeckeln(x, y);
1330 }
1331
1332 void DrawLevelElement(int x, int y, int element)
1333 {
1334   if (IN_LEV_FIELD(x, y) && IN_SCR_FIELD(SCREENX(x), SCREENY(y)))
1335     DrawScreenElement(SCREENX(x), SCREENY(y), element);
1336 }
1337
1338 void DrawScreenField(int x, int y)
1339 {
1340   int ux = LEVELX(x), uy = LEVELY(y);
1341   int element, content;
1342
1343   if (!IN_LEV_FIELD(ux, uy))
1344   {
1345     if (ux < -1 || ux > lev_fieldx || uy < -1 || uy > lev_fieldy)
1346       element = EL_LEERRAUM;
1347     else
1348       element = BorderElement;
1349
1350     DrawScreenElement(x, y, element);
1351     return;
1352   }
1353
1354   element = Feld[ux][uy];
1355   content = Store[ux][uy];
1356
1357   if (IS_MOVING(ux, uy))
1358   {
1359     int horiz_move = (MovDir[ux][uy] == MV_LEFT || MovDir[ux][uy] == MV_RIGHT);
1360     boolean cut_mode = NO_CUTTING;
1361
1362     if (element == EL_QUICKSAND_EMPTYING ||
1363         element == EL_MAGIC_WALL_EMPTYING ||
1364         element == EL_MAGIC_WALL_BD_EMPTYING ||
1365         content == EL_AMOEBE_NASS)
1366       cut_mode = CUT_ABOVE;
1367     else if (element == EL_QUICKSAND_FILLING ||
1368              element == EL_MAGIC_WALL_FILLING ||
1369              element == EL_MAGIC_WALL_BD_FILLING)
1370       cut_mode = CUT_BELOW;
1371
1372     if (cut_mode == CUT_ABOVE)
1373     {
1374       if (element == EL_QUICKSAND_EMPTYING ||
1375           element == EL_MAGIC_WALL_EMPTYING ||
1376           element == EL_MAGIC_WALL_BD_EMPTYING)
1377         DrawScreenElementShifted(x, y, 0, 0, element, NO_CUTTING);
1378       else
1379         DrawScreenElementShifted(x, y, 0, 0, content, NO_CUTTING);
1380     }
1381     else
1382       DrawScreenElement(x, y, EL_LEERRAUM);
1383
1384     if (horiz_move)
1385       DrawScreenElementShifted(x, y, MovPos[ux][uy], 0, element, NO_CUTTING);
1386     else
1387     {
1388       if (element == EL_QUICKSAND_EMPTYING ||
1389           element == EL_MAGIC_WALL_EMPTYING ||
1390           element == EL_MAGIC_WALL_BD_EMPTYING ||
1391           element == EL_QUICKSAND_FILLING ||
1392           element == EL_MAGIC_WALL_FILLING ||
1393           element == EL_MAGIC_WALL_BD_FILLING)
1394         DrawScreenElementShifted(x, y, 0, MovPos[ux][uy], content, cut_mode);
1395       else
1396         DrawScreenElementShifted(x, y, 0, MovPos[ux][uy], element, cut_mode);
1397     }
1398
1399     if (content == EL_SALZSAEURE)
1400       DrawLevelElementThruMask(ux, uy + 1, EL_SALZSAEURE);
1401   }
1402   else if (IS_BLOCKED(ux, uy))
1403   {
1404     int oldx, oldy;
1405     int sx, sy;
1406     int horiz_move;
1407     boolean cut_mode = NO_CUTTING;
1408     int element_old, content_old;
1409
1410     Blocked2Moving(ux, uy, &oldx, &oldy);
1411     sx = SCREENX(oldx);
1412     sy = SCREENY(oldy);
1413     horiz_move = (MovDir[oldx][oldy] == MV_LEFT ||
1414                   MovDir[oldx][oldy] == MV_RIGHT);
1415
1416     element_old = Feld[oldx][oldy];
1417     content_old = Store[oldx][oldy];
1418
1419     if (element_old == EL_QUICKSAND_EMPTYING ||
1420         element_old == EL_MAGIC_WALL_EMPTYING ||
1421         element_old == EL_MAGIC_WALL_BD_EMPTYING ||
1422         content_old == EL_AMOEBE_NASS)
1423       cut_mode = CUT_ABOVE;
1424
1425     DrawScreenElement(x, y, EL_LEERRAUM);
1426
1427     if (horiz_move)
1428       DrawScreenElementShifted(sx, sy, MovPos[oldx][oldy], 0, element_old,
1429                                NO_CUTTING);
1430     else
1431     {
1432       if (element_old == EL_QUICKSAND_EMPTYING ||
1433           element_old == EL_MAGIC_WALL_EMPTYING ||
1434           element_old == EL_MAGIC_WALL_BD_EMPTYING)
1435         DrawScreenElementShifted(sx, sy, 0, MovPos[oldx][oldy], content_old,
1436                                  cut_mode);
1437       else
1438         DrawScreenElementShifted(sx, sy, 0, MovPos[oldx][oldy], element_old,
1439                                  cut_mode);
1440     }
1441   }
1442   else if (IS_DRAWABLE(element))
1443     DrawScreenElement(x, y, element);
1444   else
1445     DrawScreenElement(x, y, EL_LEERRAUM);
1446 }
1447
1448 void DrawLevelField(int x, int y)
1449 {
1450   if (IN_SCR_FIELD(SCREENX(x), SCREENY(y)))
1451     DrawScreenField(SCREENX(x), SCREENY(y));
1452   else if (IS_MOVING(x, y))
1453   {
1454     int newx,newy;
1455
1456     Moving2Blocked(x, y, &newx, &newy);
1457     if (IN_SCR_FIELD(SCREENX(newx), SCREENY(newy)))
1458       DrawScreenField(SCREENX(newx), SCREENY(newy));
1459   }
1460   else if (IS_BLOCKED(x, y))
1461   {
1462     int oldx, oldy;
1463
1464     Blocked2Moving(x, y, &oldx, &oldy);
1465     if (IN_SCR_FIELD(SCREENX(oldx), SCREENY(oldy)))
1466       DrawScreenField(SCREENX(oldx), SCREENY(oldy));
1467   }
1468 }
1469
1470 void DrawMiniElement(int x, int y, int element)
1471 {
1472   int graphic;
1473
1474   if (!element)
1475   {
1476     DrawMiniGraphic(x, y, -1);
1477     return;
1478   }
1479
1480   graphic = el2gfx(element);
1481   DrawMiniGraphic(x, y, graphic);
1482 }
1483
1484 void DrawMiniElementOrWall(int sx, int sy, int scroll_x, int scroll_y)
1485 {
1486   int x = sx + scroll_x, y = sy + scroll_y;
1487
1488   if (x < -1 || x > lev_fieldx || y < -1 || y > lev_fieldy)
1489     DrawMiniElement(sx, sy, EL_LEERRAUM);
1490   else if (x > -1 && x < lev_fieldx && y > -1 && y < lev_fieldy)
1491     DrawMiniElement(sx, sy, Feld[x][y]);
1492   else
1493   {
1494     int steel_type, steel_position;
1495     int border[6][2] =
1496     {
1497       { GFX_VSTEEL_UPPER_LEFT,  GFX_ISTEEL_UPPER_LEFT  },
1498       { GFX_VSTEEL_UPPER_RIGHT, GFX_ISTEEL_UPPER_RIGHT },
1499       { GFX_VSTEEL_LOWER_LEFT,  GFX_ISTEEL_LOWER_LEFT  },
1500       { GFX_VSTEEL_LOWER_RIGHT, GFX_ISTEEL_LOWER_RIGHT },
1501       { GFX_VSTEEL_VERTICAL,    GFX_ISTEEL_VERTICAL    },
1502       { GFX_VSTEEL_HORIZONTAL,  GFX_ISTEEL_HORIZONTAL  }
1503     };
1504
1505     steel_type = (BorderElement == EL_BETON ? 0 : 1);
1506     steel_position = (x == -1 && y == -1                        ? 0 :
1507                       x == lev_fieldx && y == -1                ? 1 :
1508                       x == -1 && y == lev_fieldy                ? 2 :
1509                       x == lev_fieldx && y == lev_fieldy        ? 3 :
1510                       x == -1 || x == lev_fieldx                ? 4 :
1511                       y == -1 || y == lev_fieldy                ? 5 : -1);
1512
1513     if (steel_position != -1)
1514       DrawMiniGraphic(sx, sy, border[steel_position][steel_type]);
1515   }
1516 }
1517
1518 void DrawMicroElement(int xpos, int ypos, int element)
1519 {
1520   int graphic;
1521
1522   if (element == EL_LEERRAUM)
1523     return;
1524
1525   graphic = el2gfx(element);
1526
1527   if (graphic >= GFX_START_ROCKSSP && graphic <= GFX_END_ROCKSSP)
1528   {
1529     graphic -= GFX_START_ROCKSSP;
1530     graphic -= ((graphic / SP_PER_LINE) * SP_PER_LINE) / 2;
1531     BlitBitmap(pix[PIX_SP], drawto,
1532                MICRO_SP_STARTX + (graphic % MICRO_SP_PER_LINE) * MICRO_TILEX,
1533                MICRO_SP_STARTY + (graphic / MICRO_SP_PER_LINE) * MICRO_TILEY,
1534                MICRO_TILEX, MICRO_TILEY, xpos, ypos);
1535   }
1536   else if (graphic >= GFX_START_ROCKSDC && graphic <= GFX_END_ROCKSDC)
1537   {
1538     graphic -= GFX_START_ROCKSDC;
1539     BlitBitmap(pix[PIX_DC], drawto,
1540                MICRO_DC_STARTX + (graphic % MICRO_DC_PER_LINE) * MICRO_TILEX,
1541                MICRO_DC_STARTY + (graphic / MICRO_DC_PER_LINE) * MICRO_TILEY,
1542                MICRO_TILEX, MICRO_TILEY, xpos, ypos);
1543   }
1544   else if (graphic >= GFX_START_ROCKSMORE && graphic <= GFX_END_ROCKSMORE)
1545   {
1546     graphic -= GFX_START_ROCKSMORE;
1547     BlitBitmap(pix[PIX_MORE], drawto,
1548                MICRO_MORE_STARTX + (graphic % MICRO_MORE_PER_LINE)*MICRO_TILEX,
1549                MICRO_MORE_STARTY + (graphic / MICRO_MORE_PER_LINE)*MICRO_TILEY,
1550                MICRO_TILEX, MICRO_TILEY, xpos, ypos);
1551   }
1552   else
1553     BlitBitmap(pix[PIX_BACK], drawto,
1554                MICRO_GFX_STARTX + (graphic % MICRO_GFX_PER_LINE) * MICRO_TILEX,
1555                MICRO_GFX_STARTY + (graphic / MICRO_GFX_PER_LINE) * MICRO_TILEY,
1556                MICRO_TILEX, MICRO_TILEY, xpos, ypos);
1557 }
1558
1559 void DrawLevel()
1560 {
1561   int x,y;
1562
1563   ClearWindow();
1564
1565   for(x=BX1; x<=BX2; x++)
1566     for(y=BY1; y<=BY2; y++)
1567       DrawScreenField(x, y);
1568
1569   redraw_mask |= REDRAW_FIELD;
1570 }
1571
1572 void DrawMiniLevel(int size_x, int size_y, int scroll_x, int scroll_y)
1573 {
1574   int x,y;
1575
1576   for(x=0; x<size_x; x++)
1577     for(y=0; y<size_y; y++)
1578       DrawMiniElementOrWall(x, y, scroll_x, scroll_y);
1579
1580   redraw_mask |= REDRAW_FIELD;
1581 }
1582
1583 static void DrawMicroLevelExt(int xpos, int ypos, int from_x, int from_y)
1584 {
1585   int x, y;
1586
1587   ClearRectangle(drawto, xpos, ypos, MICROLEV_XSIZE, MICROLEV_YSIZE);
1588
1589   if (lev_fieldx < STD_LEV_FIELDX)
1590     xpos += (STD_LEV_FIELDX - lev_fieldx) / 2 * MICRO_TILEX;
1591   if (lev_fieldy < STD_LEV_FIELDY)
1592     ypos += (STD_LEV_FIELDY - lev_fieldy) / 2 * MICRO_TILEY;
1593
1594   xpos += MICRO_TILEX;
1595   ypos += MICRO_TILEY;
1596
1597   for(x=-1; x<=STD_LEV_FIELDX; x++)
1598   {
1599     for(y=-1; y<=STD_LEV_FIELDY; y++)
1600     {
1601       int lx = from_x + x, ly = from_y + y;
1602
1603       if (lx >= 0 && lx < lev_fieldx && ly >= 0 && ly < lev_fieldy)
1604         DrawMicroElement(xpos + x * MICRO_TILEX, ypos + y * MICRO_TILEY,
1605                          Ur[lx][ly]);
1606       else if (lx >= -1 && lx < lev_fieldx+1 && ly >= -1 && ly < lev_fieldy+1)
1607         DrawMicroElement(xpos + x * MICRO_TILEX, ypos + y * MICRO_TILEY,
1608                          BorderElement);
1609     }
1610   }
1611
1612   redraw_mask |= REDRAW_MICROLEVEL;
1613 }
1614
1615 #define MICROLABEL_EMPTY                0
1616 #define MICROLABEL_LEVEL_NAME           1
1617 #define MICROLABEL_CREATED_BY           2
1618 #define MICROLABEL_LEVEL_AUTHOR         3
1619 #define MICROLABEL_IMPORTED_FROM        4
1620 #define MICROLABEL_LEVEL_IMPORT_INFO    5
1621
1622 #define MAX_MICROLABEL_SIZE             (SXSIZE / FONT4_XSIZE)
1623
1624 static void DrawMicroLevelLabelExt(int mode)
1625 {
1626   char label_text[MAX_MICROLABEL_SIZE + 1];
1627
1628   ClearRectangle(drawto, SX, MICROLABEL_YPOS, SXSIZE, FONT4_YSIZE);
1629
1630   strncpy(label_text, (mode == MICROLABEL_LEVEL_NAME ? level.name :
1631                        mode == MICROLABEL_CREATED_BY ? "created by" :
1632                        mode == MICROLABEL_LEVEL_AUTHOR ? level.author :
1633                        mode == MICROLABEL_IMPORTED_FROM ? "imported from" :
1634                        mode == MICROLABEL_LEVEL_IMPORT_INFO ?
1635                        leveldir_current->imported_from : ""),
1636           MAX_MICROLABEL_SIZE);
1637   label_text[MAX_MICROLABEL_SIZE] = '\0';
1638
1639   if (strlen(label_text) > 0)
1640   {
1641     int lxpos = SX + (SXSIZE - strlen(label_text) * FONT4_XSIZE) / 2;
1642     int lypos = MICROLABEL_YPOS;
1643
1644     DrawText(lxpos, lypos, label_text, FS_SMALL, FC_SPECIAL2);
1645   }
1646
1647   redraw_mask |= REDRAW_MICROLEVEL;
1648 }
1649
1650 void DrawMicroLevel(int xpos, int ypos, boolean restart)
1651 {
1652   static unsigned long scroll_delay = 0;
1653   static unsigned long label_delay = 0;
1654   static int from_x, from_y, scroll_direction;
1655   static int label_state, label_counter;
1656
1657   if (restart)
1658   {
1659     from_x = from_y = 0;
1660     scroll_direction = MV_RIGHT;
1661     label_state = 1;
1662     label_counter = 0;
1663
1664     DrawMicroLevelExt(xpos, ypos, from_x, from_y);
1665     DrawMicroLevelLabelExt(label_state);
1666
1667     /* initialize delay counters */
1668     DelayReached(&scroll_delay, 0);
1669     DelayReached(&label_delay, 0);
1670
1671     return;
1672   }
1673
1674   /* scroll micro level, if needed */
1675   if ((lev_fieldx > STD_LEV_FIELDX || lev_fieldy > STD_LEV_FIELDY) &&
1676       DelayReached(&scroll_delay, MICROLEVEL_SCROLL_DELAY))
1677   {
1678     switch (scroll_direction)
1679     {
1680       case MV_LEFT:
1681         if (from_x > 0)
1682           from_x--;
1683         else
1684           scroll_direction = MV_UP;
1685         break;
1686
1687       case MV_RIGHT:
1688         if (from_x < lev_fieldx - STD_LEV_FIELDX)
1689           from_x++;
1690         else
1691           scroll_direction = MV_DOWN;
1692         break;
1693
1694       case MV_UP:
1695         if (from_y > 0)
1696           from_y--;
1697         else
1698           scroll_direction = MV_RIGHT;
1699         break;
1700
1701       case MV_DOWN:
1702         if (from_y < lev_fieldy - STD_LEV_FIELDY)
1703           from_y++;
1704         else
1705           scroll_direction = MV_LEFT;
1706         break;
1707
1708       default:
1709         break;
1710     }
1711
1712     DrawMicroLevelExt(xpos, ypos, from_x, from_y);
1713   }
1714
1715   /* redraw micro level label, if needed */
1716   if (strcmp(level.name, NAMELESS_LEVEL_NAME) != 0 &&
1717       strcmp(level.author, ANONYMOUS_NAME) != 0 &&
1718       strcmp(level.author, leveldir_current->name) != 0 &&
1719       DelayReached(&label_delay, MICROLEVEL_LABEL_DELAY))
1720   {
1721     int max_label_counter = 23;
1722
1723     if (leveldir_current->imported_from != NULL)
1724       max_label_counter += 14;
1725
1726     label_counter = (label_counter + 1) % max_label_counter;
1727     label_state = (label_counter >= 0 && label_counter <= 7 ?
1728                    MICROLABEL_LEVEL_NAME :
1729                    label_counter >= 9 && label_counter <= 12 ?
1730                    MICROLABEL_CREATED_BY :
1731                    label_counter >= 14 && label_counter <= 21 ?
1732                    MICROLABEL_LEVEL_AUTHOR :
1733                    label_counter >= 23 && label_counter <= 26 ?
1734                    MICROLABEL_IMPORTED_FROM :
1735                    label_counter >= 28 && label_counter <= 35 ?
1736                    MICROLABEL_LEVEL_IMPORT_INFO : MICROLABEL_EMPTY);
1737     DrawMicroLevelLabelExt(label_state);
1738   }
1739 }
1740
1741 int REQ_in_range(int x, int y)
1742 {
1743   if (y > DY+249 && y < DY+278)
1744   {
1745     if (x > DX+1 && x < DX+48)
1746       return 1;
1747     else if (x > DX+51 && x < DX+98)
1748       return 2;
1749   }
1750   return 0;
1751 }
1752
1753 boolean Request(char *text, unsigned int req_state)
1754 {
1755   int mx, my, ty, result = -1;
1756   unsigned int old_door_state;
1757
1758 #if defined(PLATFORM_UNIX)
1759   /* pause network game while waiting for request to answer */
1760   if (options.network &&
1761       game_status == PLAYING &&
1762       req_state & REQUEST_WAIT_FOR)
1763     SendToServer_PausePlaying();
1764 #endif
1765
1766   old_door_state = GetDoorState();
1767
1768   UnmapAllGadgets();
1769
1770   CloseDoor(DOOR_CLOSE_1);
1771
1772   /* save old door content */
1773   BlitBitmap(pix[PIX_DB_DOOR], pix[PIX_DB_DOOR],
1774              DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1, DXSIZE, DYSIZE,
1775              DOOR_GFX_PAGEX2, DOOR_GFX_PAGEY1);
1776
1777   /* clear door drawing field */
1778   ClearRectangle(drawto, DX, DY, DXSIZE, DYSIZE);
1779
1780   /* write text for request */
1781   for(ty=0; ty<13; ty++)
1782   {
1783     int tx, tl, tc;
1784     char txt[256];
1785
1786     if (!*text)
1787       break;
1788
1789     for(tl=0,tx=0; tx<7; tl++,tx++)
1790     {
1791       tc = *(text + tx);
1792       if (!tc || tc == 32)
1793         break;
1794     }
1795     if (!tl)
1796     {
1797       text++;
1798       ty--;
1799       continue;
1800     }
1801     sprintf(txt, text);
1802     txt[tl] = 0;
1803     DrawTextExt(drawto, DX + 51 - (tl * 14)/2, DY + 8 + ty * 16,
1804                 txt, FS_SMALL, FC_YELLOW);
1805     text += tl + (tc == 32 ? 1 : 0);
1806   }
1807
1808   if (req_state & REQ_ASK)
1809   {
1810     MapGadget(tool_gadget[TOOL_CTRL_ID_YES]);
1811     MapGadget(tool_gadget[TOOL_CTRL_ID_NO]);
1812   }
1813   else if (req_state & REQ_CONFIRM)
1814   {
1815     MapGadget(tool_gadget[TOOL_CTRL_ID_CONFIRM]);
1816   }
1817   else if (req_state & REQ_PLAYER)
1818   {
1819     MapGadget(tool_gadget[TOOL_CTRL_ID_PLAYER_1]);
1820     MapGadget(tool_gadget[TOOL_CTRL_ID_PLAYER_2]);
1821     MapGadget(tool_gadget[TOOL_CTRL_ID_PLAYER_3]);
1822     MapGadget(tool_gadget[TOOL_CTRL_ID_PLAYER_4]);
1823   }
1824
1825   /* copy request gadgets to door backbuffer */
1826   BlitBitmap(drawto, pix[PIX_DB_DOOR],
1827              DX, DY, DXSIZE, DYSIZE,
1828              DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1);
1829
1830   OpenDoor(DOOR_OPEN_1);
1831
1832 #if 0
1833   ClearEventQueue();
1834 #endif
1835
1836   if (!(req_state & REQUEST_WAIT_FOR))
1837     return(FALSE);
1838
1839   if (game_status != MAINMENU)
1840     InitAnimation();
1841
1842   button_status = MB_RELEASED;
1843
1844   request_gadget_id = -1;
1845
1846   while(result < 0)
1847   {
1848     if (PendingEvent())
1849     {
1850       Event event;
1851
1852       NextEvent(&event);
1853
1854       switch(event.type)
1855       {
1856         case EVENT_BUTTONPRESS:
1857         case EVENT_BUTTONRELEASE:
1858         case EVENT_MOTIONNOTIFY:
1859         {
1860           if (event.type == EVENT_MOTIONNOTIFY)
1861           {
1862             if (!PointerInWindow(window))
1863               continue; /* window and pointer are on different screens */
1864
1865             if (!button_status)
1866               continue;
1867
1868             motion_status = TRUE;
1869             mx = ((MotionEvent *) &event)->x;
1870             my = ((MotionEvent *) &event)->y;
1871           }
1872           else
1873           {
1874             motion_status = FALSE;
1875             mx = ((ButtonEvent *) &event)->x;
1876             my = ((ButtonEvent *) &event)->y;
1877             if (event.type == EVENT_BUTTONPRESS)
1878               button_status = ((ButtonEvent *) &event)->button;
1879             else
1880               button_status = MB_RELEASED;
1881           }
1882
1883           /* this sets 'request_gadget_id' */
1884           HandleGadgets(mx, my, button_status);
1885
1886           switch(request_gadget_id)
1887           {
1888             case TOOL_CTRL_ID_YES:
1889               result = TRUE;
1890               break;
1891             case TOOL_CTRL_ID_NO:
1892               result = FALSE;
1893               break;
1894             case TOOL_CTRL_ID_CONFIRM:
1895               result = TRUE | FALSE;
1896               break;
1897
1898             case TOOL_CTRL_ID_PLAYER_1:
1899               result = 1;
1900               break;
1901             case TOOL_CTRL_ID_PLAYER_2:
1902               result = 2;
1903               break;
1904             case TOOL_CTRL_ID_PLAYER_3:
1905               result = 3;
1906               break;
1907             case TOOL_CTRL_ID_PLAYER_4:
1908               result = 4;
1909               break;
1910
1911             default:
1912               break;
1913           }
1914
1915           break;
1916         }
1917
1918         case EVENT_KEYPRESS:
1919           switch(GetEventKey((KeyEvent *)&event, TRUE))
1920           {
1921             case KSYM_Return:
1922               result = 1;
1923               break;
1924
1925             case KSYM_Escape:
1926               result = 0;
1927               break;
1928
1929             default:
1930               break;
1931           }
1932           if (req_state & REQ_PLAYER)
1933             result = 0;
1934           break;
1935
1936         case EVENT_KEYRELEASE:
1937           key_joystick_mapping = 0;
1938           break;
1939
1940         default:
1941           HandleOtherEvents(&event);
1942           break;
1943       }
1944     }
1945     else if (AnyJoystickButton() == JOY_BUTTON_NEW_PRESSED)
1946     {
1947       int joy = AnyJoystick();
1948
1949       if (joy & JOY_BUTTON_1)
1950         result = 1;
1951       else if (joy & JOY_BUTTON_2)
1952         result = 0;
1953     }
1954
1955     DoAnimation();
1956
1957     /* don't eat all CPU time */
1958     Delay(10);
1959   }
1960
1961   if (game_status != MAINMENU)
1962     StopAnimation();
1963
1964   UnmapToolButtons();
1965
1966   if (!(req_state & REQ_STAY_OPEN))
1967   {
1968     CloseDoor(DOOR_CLOSE_1);
1969
1970     if (!(req_state & REQ_STAY_CLOSED) && (old_door_state & DOOR_OPEN_1))
1971     {
1972       BlitBitmap(pix[PIX_DB_DOOR], pix[PIX_DB_DOOR],
1973                  DOOR_GFX_PAGEX2,DOOR_GFX_PAGEY1, DXSIZE,DYSIZE,
1974                  DOOR_GFX_PAGEX1,DOOR_GFX_PAGEY1);
1975       OpenDoor(DOOR_OPEN_1);
1976     }
1977   }
1978
1979   RemapAllGadgets();
1980
1981 #if defined(PLATFORM_UNIX)
1982   /* continue network game after request */
1983   if (options.network &&
1984       game_status == PLAYING &&
1985       req_state & REQUEST_WAIT_FOR)
1986     SendToServer_ContinuePlaying();
1987 #endif
1988
1989   return(result);
1990 }
1991
1992 unsigned int OpenDoor(unsigned int door_state)
1993 {
1994   unsigned int new_door_state;
1995
1996   if (door_state & DOOR_COPY_BACK)
1997   {
1998     BlitBitmap(pix[PIX_DB_DOOR], pix[PIX_DB_DOOR],
1999                DOOR_GFX_PAGEX2, DOOR_GFX_PAGEY1, DXSIZE, DYSIZE + VYSIZE,
2000                DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1);
2001     door_state &= ~DOOR_COPY_BACK;
2002   }
2003
2004   new_door_state = MoveDoor(door_state);
2005
2006   return(new_door_state);
2007 }
2008
2009 unsigned int CloseDoor(unsigned int door_state)
2010 {
2011   unsigned int new_door_state;
2012
2013   BlitBitmap(backbuffer, pix[PIX_DB_DOOR],
2014              DX, DY, DXSIZE, DYSIZE, DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1);
2015   BlitBitmap(backbuffer, pix[PIX_DB_DOOR],
2016              VX, VY, VXSIZE, VYSIZE, DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY2);
2017
2018   new_door_state = MoveDoor(door_state);
2019
2020   return(new_door_state);
2021 }
2022
2023 unsigned int GetDoorState()
2024 {
2025   return(MoveDoor(DOOR_GET_STATE));
2026 }
2027
2028 unsigned int MoveDoor(unsigned int door_state)
2029 {
2030   static int door1 = DOOR_OPEN_1;
2031   static int door2 = DOOR_CLOSE_2;
2032   static unsigned long door_delay = 0;
2033   int x, start, stepsize = 2;
2034   unsigned long door_delay_value = stepsize * 5;
2035
2036   if (door_state == DOOR_GET_STATE)
2037     return(door1 | door2);
2038
2039   if (door1 == DOOR_OPEN_1 && door_state & DOOR_OPEN_1)
2040     door_state &= ~DOOR_OPEN_1;
2041   else if (door1 == DOOR_CLOSE_1 && door_state & DOOR_CLOSE_1)
2042     door_state &= ~DOOR_CLOSE_1;
2043   if (door2 == DOOR_OPEN_2 && door_state & DOOR_OPEN_2)
2044     door_state &= ~DOOR_OPEN_2;
2045   else if (door2 == DOOR_CLOSE_2 && door_state & DOOR_CLOSE_2)
2046     door_state &= ~DOOR_CLOSE_2;
2047
2048   if (setup.quick_doors)
2049   {
2050     stepsize = 20;
2051     door_delay_value = 0;
2052     StopSound(SND_OEFFNEN);
2053   }
2054
2055   if (door_state & DOOR_ACTION)
2056   {
2057     if (!(door_state & DOOR_NO_DELAY))
2058       PlaySoundStereo(SND_OEFFNEN, PSND_MAX_RIGHT);
2059
2060     start = ((door_state & DOOR_NO_DELAY) ? DXSIZE : 0);
2061
2062     for(x=start; x<=DXSIZE; x+=stepsize)
2063     {
2064       Bitmap *bitmap = pix[PIX_DOOR];
2065       GC gc = bitmap->stored_clip_gc;
2066
2067       WaitUntilDelayReached(&door_delay, door_delay_value);
2068
2069       if (door_state & DOOR_ACTION_1)
2070       {
2071         int i = (door_state & DOOR_OPEN_1 ? DXSIZE-x : x);
2072         int j = (DXSIZE - i) / 3;
2073
2074         BlitBitmap(pix[PIX_DB_DOOR], drawto,
2075                    DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1 + i/2,
2076                    DXSIZE,DYSIZE - i/2, DX, DY);
2077
2078         ClearRectangle(drawto, DX, DY + DYSIZE - i/2, DXSIZE,i/2);
2079
2080         SetClipOrigin(bitmap, gc, DX - i, (DY + j) - DOOR_GFX_PAGEY1);
2081         BlitBitmapMasked(bitmap, drawto,
2082                          DXSIZE, DOOR_GFX_PAGEY1, i, 77,
2083                          DX + DXSIZE - i, DY + j);
2084         BlitBitmapMasked(bitmap, drawto,
2085                          DXSIZE, DOOR_GFX_PAGEY1 + 140, i, 63,
2086                          DX + DXSIZE - i, DY + 140 + j);
2087         SetClipOrigin(bitmap, gc, DX - DXSIZE + i, DY - (DOOR_GFX_PAGEY1 + j));
2088         BlitBitmapMasked(bitmap, drawto,
2089                          DXSIZE - i, DOOR_GFX_PAGEY1 + j, i, 77 - j,
2090                          DX, DY);
2091         BlitBitmapMasked(bitmap, drawto,
2092                          DXSIZE-i, DOOR_GFX_PAGEY1 + 140, i, 63,
2093                          DX, DY + 140 - j);
2094
2095         BlitBitmapMasked(bitmap, drawto,
2096                          DXSIZE - i, DOOR_GFX_PAGEY1 + 77, i, 63,
2097                          DX, DY + 77 - j);
2098         BlitBitmapMasked(bitmap, drawto,
2099                          DXSIZE - i, DOOR_GFX_PAGEY1 + 203, i, 77,
2100                          DX, DY + 203 - j);
2101         SetClipOrigin(bitmap, gc, DX - i, (DY + j) - DOOR_GFX_PAGEY1);
2102         BlitBitmapMasked(bitmap, drawto,
2103                          DXSIZE, DOOR_GFX_PAGEY1 + 77, i, 63,
2104                          DX + DXSIZE - i, DY + 77 + j);
2105         BlitBitmapMasked(bitmap, drawto,
2106                          DXSIZE, DOOR_GFX_PAGEY1 + 203, i, 77 - j,
2107                          DX + DXSIZE - i, DY + 203 + j);
2108
2109         redraw_mask |= REDRAW_DOOR_1;
2110       }
2111
2112       if (door_state & DOOR_ACTION_2)
2113       {
2114         int i = (door_state & DOOR_OPEN_2 ? VXSIZE - x : x);
2115         int j = (VXSIZE - i) / 3;
2116
2117         BlitBitmap(pix[PIX_DB_DOOR], drawto,
2118                    DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY2 + i/2,
2119                    VXSIZE, VYSIZE - i/2, VX, VY);
2120
2121         ClearRectangle(drawto, VX, VY + VYSIZE-i/2, VXSIZE, i/2);
2122
2123         SetClipOrigin(bitmap, gc, VX - i, (VY + j) - DOOR_GFX_PAGEY2);
2124         BlitBitmapMasked(bitmap, drawto,
2125                          VXSIZE, DOOR_GFX_PAGEY2, i, VYSIZE / 2,
2126                          VX + VXSIZE-i, VY+j);
2127         SetClipOrigin(bitmap, gc,
2128                       VX - VXSIZE + i, VY - (DOOR_GFX_PAGEY2 + j));
2129         BlitBitmapMasked(bitmap, drawto,
2130                          VXSIZE - i, DOOR_GFX_PAGEY2 + j, i, VYSIZE / 2 - j,
2131                          VX, VY);
2132
2133         BlitBitmapMasked(bitmap, drawto,
2134                          VXSIZE - i, DOOR_GFX_PAGEY2 + VYSIZE / 2,
2135                          i, VYSIZE / 2, VX, VY + VYSIZE / 2 - j);
2136         SetClipOrigin(bitmap, gc, VX - i, (VY + j) - DOOR_GFX_PAGEY2);
2137         BlitBitmapMasked(bitmap, drawto,
2138                          VXSIZE, DOOR_GFX_PAGEY2 + VYSIZE / 2,
2139                          i, VYSIZE / 2 - j,
2140                          VX + VXSIZE - i, VY + VYSIZE / 2 + j);
2141
2142         redraw_mask |= REDRAW_DOOR_2;
2143       }
2144
2145       BackToFront();
2146
2147       if (game_status == MAINMENU)
2148         DoAnimation();
2149     }
2150   }
2151
2152   if (setup.quick_doors)
2153     StopSound(SND_OEFFNEN);
2154
2155   if (door_state & DOOR_ACTION_1)
2156     door1 = door_state & DOOR_ACTION_1;
2157   if (door_state & DOOR_ACTION_2)
2158     door2 = door_state & DOOR_ACTION_2;
2159
2160   return (door1 | door2);
2161 }
2162
2163 void DrawSpecialEditorDoor()
2164 {
2165   /* draw bigger toolbox window */
2166   BlitBitmap(pix[PIX_DOOR], drawto,
2167              DOOR_GFX_PAGEX7, 0, 108, 56, EX - 4, EY - 12);
2168
2169   redraw_mask |= REDRAW_ALL;
2170 }
2171
2172 void UndrawSpecialEditorDoor()
2173 {
2174   /* draw normal tape recorder window */
2175   BlitBitmap(pix[PIX_BACK], drawto,
2176              562, 344, 108, 56, EX - 4, EY - 12);
2177
2178   redraw_mask |= REDRAW_ALL;
2179 }
2180
2181 #ifndef TARGET_SDL
2182 int ReadPixel(DrawBuffer *bitmap, int x, int y)
2183 {
2184   XImage *pixel_image;
2185   unsigned long pixel_value;
2186
2187   pixel_image = XGetImage(display, bitmap->drawable,
2188                           x, y, 1, 1, AllPlanes, ZPixmap);
2189   pixel_value = XGetPixel(pixel_image, 0, 0);
2190
2191   XDestroyImage(pixel_image);
2192
2193   return pixel_value;
2194 }
2195 #endif
2196
2197 /* ---------- new tool button stuff ---------------------------------------- */
2198
2199 /* graphic position values for tool buttons */
2200 #define TOOL_BUTTON_YES_XPOS            2
2201 #define TOOL_BUTTON_YES_YPOS            250
2202 #define TOOL_BUTTON_YES_GFX_YPOS        0
2203 #define TOOL_BUTTON_YES_XSIZE           46
2204 #define TOOL_BUTTON_YES_YSIZE           28
2205 #define TOOL_BUTTON_NO_XPOS             52
2206 #define TOOL_BUTTON_NO_YPOS             TOOL_BUTTON_YES_YPOS
2207 #define TOOL_BUTTON_NO_GFX_YPOS         TOOL_BUTTON_YES_GFX_YPOS
2208 #define TOOL_BUTTON_NO_XSIZE            TOOL_BUTTON_YES_XSIZE
2209 #define TOOL_BUTTON_NO_YSIZE            TOOL_BUTTON_YES_YSIZE
2210 #define TOOL_BUTTON_CONFIRM_XPOS        TOOL_BUTTON_YES_XPOS
2211 #define TOOL_BUTTON_CONFIRM_YPOS        TOOL_BUTTON_YES_YPOS
2212 #define TOOL_BUTTON_CONFIRM_GFX_YPOS    30
2213 #define TOOL_BUTTON_CONFIRM_XSIZE       96
2214 #define TOOL_BUTTON_CONFIRM_YSIZE       TOOL_BUTTON_YES_YSIZE
2215 #define TOOL_BUTTON_PLAYER_XSIZE        30
2216 #define TOOL_BUTTON_PLAYER_YSIZE        30
2217 #define TOOL_BUTTON_PLAYER_GFX_XPOS     5
2218 #define TOOL_BUTTON_PLAYER_GFX_YPOS     185
2219 #define TOOL_BUTTON_PLAYER_XPOS         (5 + TOOL_BUTTON_PLAYER_XSIZE / 2)
2220 #define TOOL_BUTTON_PLAYER_YPOS         (215 - TOOL_BUTTON_PLAYER_YSIZE / 2)
2221 #define TOOL_BUTTON_PLAYER1_XPOS        (TOOL_BUTTON_PLAYER_XPOS \
2222                                          + 0 * TOOL_BUTTON_PLAYER_XSIZE)
2223 #define TOOL_BUTTON_PLAYER2_XPOS        (TOOL_BUTTON_PLAYER_XPOS \
2224                                          + 1 * TOOL_BUTTON_PLAYER_XSIZE)
2225 #define TOOL_BUTTON_PLAYER3_XPOS        (TOOL_BUTTON_PLAYER_XPOS \
2226                                          + 0 * TOOL_BUTTON_PLAYER_XSIZE)
2227 #define TOOL_BUTTON_PLAYER4_XPOS        (TOOL_BUTTON_PLAYER_XPOS \
2228                                          + 1 * TOOL_BUTTON_PLAYER_XSIZE)
2229 #define TOOL_BUTTON_PLAYER1_YPOS        (TOOL_BUTTON_PLAYER_YPOS \
2230                                          + 0 * TOOL_BUTTON_PLAYER_YSIZE)
2231 #define TOOL_BUTTON_PLAYER2_YPOS        (TOOL_BUTTON_PLAYER_YPOS \
2232                                          + 0 * TOOL_BUTTON_PLAYER_YSIZE)
2233 #define TOOL_BUTTON_PLAYER3_YPOS        (TOOL_BUTTON_PLAYER_YPOS \
2234                                          + 1 * TOOL_BUTTON_PLAYER_YSIZE)
2235 #define TOOL_BUTTON_PLAYER4_YPOS        (TOOL_BUTTON_PLAYER_YPOS \
2236                                          + 1 * TOOL_BUTTON_PLAYER_YSIZE)
2237
2238 static struct
2239 {
2240   int xpos, ypos;
2241   int x, y;
2242   int width, height;
2243   int gadget_id;
2244   char *infotext;
2245 } toolbutton_info[NUM_TOOL_BUTTONS] =
2246 {
2247   {
2248     TOOL_BUTTON_YES_XPOS,       TOOL_BUTTON_YES_GFX_YPOS,
2249     TOOL_BUTTON_YES_XPOS,       TOOL_BUTTON_YES_YPOS,
2250     TOOL_BUTTON_YES_XSIZE,      TOOL_BUTTON_YES_YSIZE,
2251     TOOL_CTRL_ID_YES,
2252     "yes"
2253   },
2254   {
2255     TOOL_BUTTON_NO_XPOS,        TOOL_BUTTON_NO_GFX_YPOS,
2256     TOOL_BUTTON_NO_XPOS,        TOOL_BUTTON_NO_YPOS,
2257     TOOL_BUTTON_NO_XSIZE,       TOOL_BUTTON_NO_YSIZE,
2258     TOOL_CTRL_ID_NO,
2259     "no"
2260   },
2261   {
2262     TOOL_BUTTON_CONFIRM_XPOS,   TOOL_BUTTON_CONFIRM_GFX_YPOS,
2263     TOOL_BUTTON_CONFIRM_XPOS,   TOOL_BUTTON_CONFIRM_YPOS,
2264     TOOL_BUTTON_CONFIRM_XSIZE,  TOOL_BUTTON_CONFIRM_YSIZE,
2265     TOOL_CTRL_ID_CONFIRM,
2266     "confirm"
2267   },
2268   {
2269     TOOL_BUTTON_PLAYER_GFX_XPOS,TOOL_BUTTON_PLAYER_GFX_YPOS,
2270     TOOL_BUTTON_PLAYER1_XPOS,   TOOL_BUTTON_PLAYER1_YPOS,
2271     TOOL_BUTTON_PLAYER_XSIZE,   TOOL_BUTTON_PLAYER_YSIZE,
2272     TOOL_CTRL_ID_PLAYER_1,
2273     "player 1"
2274   },
2275   {
2276     TOOL_BUTTON_PLAYER_GFX_XPOS,TOOL_BUTTON_PLAYER_GFX_YPOS,
2277     TOOL_BUTTON_PLAYER2_XPOS,   TOOL_BUTTON_PLAYER2_YPOS,
2278     TOOL_BUTTON_PLAYER_XSIZE,   TOOL_BUTTON_PLAYER_YSIZE,
2279     TOOL_CTRL_ID_PLAYER_2,
2280     "player 2"
2281   },
2282   {
2283     TOOL_BUTTON_PLAYER_GFX_XPOS,TOOL_BUTTON_PLAYER_GFX_YPOS,
2284     TOOL_BUTTON_PLAYER3_XPOS,   TOOL_BUTTON_PLAYER3_YPOS,
2285     TOOL_BUTTON_PLAYER_XSIZE,   TOOL_BUTTON_PLAYER_YSIZE,
2286     TOOL_CTRL_ID_PLAYER_3,
2287     "player 3"
2288   },
2289   {
2290     TOOL_BUTTON_PLAYER_GFX_XPOS,TOOL_BUTTON_PLAYER_GFX_YPOS,
2291     TOOL_BUTTON_PLAYER4_XPOS,   TOOL_BUTTON_PLAYER4_YPOS,
2292     TOOL_BUTTON_PLAYER_XSIZE,   TOOL_BUTTON_PLAYER_YSIZE,
2293     TOOL_CTRL_ID_PLAYER_4,
2294     "player 4"
2295   }
2296 };
2297
2298 #if 0
2299 static void DoNotDisplayInfoText(void *ptr)
2300 {
2301   return;
2302 }
2303 #endif
2304
2305 void CreateToolButtons()
2306 {
2307   int i;
2308
2309   for (i=0; i<NUM_TOOL_BUTTONS; i++)
2310   {
2311     Bitmap *gd_bitmap = pix[PIX_DOOR];
2312     Bitmap *deco_bitmap = None;
2313     int deco_x = 0, deco_y = 0, deco_xpos = 0, deco_ypos = 0;
2314     struct GadgetInfo *gi;
2315     unsigned long event_mask;
2316     int gd_xoffset, gd_yoffset;
2317     int gd_x1, gd_x2, gd_y;
2318     int id = i;
2319
2320     event_mask = GD_EVENT_RELEASED;
2321
2322     gd_xoffset = toolbutton_info[i].xpos;
2323     gd_yoffset = toolbutton_info[i].ypos;
2324     gd_x1 = DOOR_GFX_PAGEX4 + gd_xoffset;
2325     gd_x2 = DOOR_GFX_PAGEX3 + gd_xoffset;
2326     gd_y = DOOR_GFX_PAGEY1 + gd_yoffset;
2327
2328     if (id >= TOOL_CTRL_ID_PLAYER_1 && id <= TOOL_CTRL_ID_PLAYER_4)
2329     {
2330       getMiniGraphicSource(GFX_SPIELER1 + id - TOOL_CTRL_ID_PLAYER_1,
2331                            &deco_bitmap, &deco_x, &deco_y);
2332       deco_xpos = (toolbutton_info[i].width - MINI_TILEX) / 2;
2333       deco_ypos = (toolbutton_info[i].height - MINI_TILEY) / 2;
2334     }
2335
2336     gi = CreateGadget(GDI_CUSTOM_ID, id,
2337                       GDI_INFO_TEXT, toolbutton_info[i].infotext,
2338                       GDI_X, DX + toolbutton_info[i].x,
2339                       GDI_Y, DY + toolbutton_info[i].y,
2340                       GDI_WIDTH, toolbutton_info[i].width,
2341                       GDI_HEIGHT, toolbutton_info[i].height,
2342                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
2343                       GDI_STATE, GD_BUTTON_UNPRESSED,
2344                       GDI_DESIGN_UNPRESSED, gd_bitmap, gd_x1, gd_y,
2345                       GDI_DESIGN_PRESSED, gd_bitmap, gd_x2, gd_y,
2346                       GDI_DECORATION_DESIGN, deco_bitmap, deco_x, deco_y,
2347                       GDI_DECORATION_POSITION, deco_xpos, deco_ypos,
2348                       GDI_DECORATION_SIZE, MINI_TILEX, MINI_TILEY,
2349                       GDI_DECORATION_SHIFTING, 1, 1,
2350                       GDI_EVENT_MASK, event_mask,
2351
2352 #if 0
2353                       GDI_CALLBACK_INFO, DoNotDisplayInfoText,
2354 #endif
2355
2356                       GDI_CALLBACK_ACTION, HandleToolButtons,
2357                       GDI_END);
2358
2359     if (gi == NULL)
2360       Error(ERR_EXIT, "cannot create gadget");
2361
2362     tool_gadget[id] = gi;
2363   }
2364 }
2365
2366 static void UnmapToolButtons()
2367 {
2368   int i;
2369
2370   for (i=0; i<NUM_TOOL_BUTTONS; i++)
2371     UnmapGadget(tool_gadget[i]);
2372 }
2373
2374 static void HandleToolButtons(struct GadgetInfo *gi)
2375 {
2376   request_gadget_id = gi->custom_id;
2377 }
2378
2379 int el2gfx(int element)
2380 {
2381   switch(element)
2382   {
2383     case EL_LEERRAUM:           return -1;
2384     case EL_ERDREICH:           return GFX_ERDREICH;
2385     case EL_MAUERWERK:          return GFX_MAUERWERK;
2386     case EL_FELSBODEN:          return GFX_FELSBODEN;
2387     case EL_FELSBROCKEN:        return GFX_FELSBROCKEN;
2388     case EL_SCHLUESSEL:         return GFX_SCHLUESSEL;
2389     case EL_EDELSTEIN:          return GFX_EDELSTEIN;
2390     case EL_AUSGANG_ZU:         return GFX_AUSGANG_ZU;
2391     case EL_AUSGANG_ACT:        return GFX_AUSGANG_ACT;
2392     case EL_AUSGANG_AUF:        return GFX_AUSGANG_AUF;
2393     case EL_SPIELFIGUR:         return GFX_SPIELFIGUR;
2394     case EL_SPIELER1:           return GFX_SPIELER1;
2395     case EL_SPIELER2:           return GFX_SPIELER2;
2396     case EL_SPIELER3:           return GFX_SPIELER3;
2397     case EL_SPIELER4:           return GFX_SPIELER4;
2398     case EL_KAEFER:             return GFX_KAEFER;
2399     case EL_KAEFER_RIGHT:       return GFX_KAEFER_RIGHT;
2400     case EL_KAEFER_UP:          return GFX_KAEFER_UP;
2401     case EL_KAEFER_LEFT:        return GFX_KAEFER_LEFT;
2402     case EL_KAEFER_DOWN:        return GFX_KAEFER_DOWN;
2403     case EL_FLIEGER:            return GFX_FLIEGER;
2404     case EL_FLIEGER_RIGHT:      return GFX_FLIEGER_RIGHT;
2405     case EL_FLIEGER_UP:         return GFX_FLIEGER_UP;
2406     case EL_FLIEGER_LEFT:       return GFX_FLIEGER_LEFT;
2407     case EL_FLIEGER_DOWN:       return GFX_FLIEGER_DOWN;
2408     case EL_BUTTERFLY:          return GFX_BUTTERFLY;
2409     case EL_BUTTERFLY_RIGHT:    return GFX_BUTTERFLY_RIGHT;
2410     case EL_BUTTERFLY_UP:       return GFX_BUTTERFLY_UP;
2411     case EL_BUTTERFLY_LEFT:     return GFX_BUTTERFLY_LEFT;
2412     case EL_BUTTERFLY_DOWN:     return GFX_BUTTERFLY_DOWN;
2413     case EL_FIREFLY:            return GFX_FIREFLY;
2414     case EL_FIREFLY_RIGHT:      return GFX_FIREFLY_RIGHT;
2415     case EL_FIREFLY_UP:         return GFX_FIREFLY_UP;
2416     case EL_FIREFLY_LEFT:       return GFX_FIREFLY_LEFT;
2417     case EL_FIREFLY_DOWN:       return GFX_FIREFLY_DOWN;
2418     case EL_MAMPFER:            return GFX_MAMPFER;
2419     case EL_ROBOT:              return GFX_ROBOT;
2420     case EL_BETON:              return GFX_BETON;
2421     case EL_DIAMANT:            return GFX_DIAMANT;
2422     case EL_MORAST_LEER:        return GFX_MORAST_LEER;
2423     case EL_MORAST_VOLL:        return GFX_MORAST_VOLL;
2424     case EL_QUICKSAND_EMPTYING: return GFX_MORAST_LEER;
2425     case EL_TROPFEN:            return GFX_TROPFEN;
2426     case EL_BOMBE:              return GFX_BOMBE;
2427     case EL_MAGIC_WALL_OFF:     return GFX_MAGIC_WALL_OFF;
2428     case EL_MAGIC_WALL_EMPTY:   return GFX_MAGIC_WALL_EMPTY;
2429     case EL_MAGIC_WALL_EMPTYING:return GFX_MAGIC_WALL_EMPTY;
2430     case EL_MAGIC_WALL_FULL:    return GFX_MAGIC_WALL_FULL;
2431     case EL_MAGIC_WALL_DEAD:    return GFX_MAGIC_WALL_DEAD;
2432     case EL_SALZSAEURE:         return GFX_SALZSAEURE;
2433     case EL_AMOEBE_TOT:         return GFX_AMOEBE_TOT;
2434     case EL_AMOEBE_NASS:        return GFX_AMOEBE_NASS;
2435     case EL_AMOEBE_NORM:        return GFX_AMOEBE_NORM;
2436     case EL_AMOEBE_VOLL:        return GFX_AMOEBE_VOLL;
2437     case EL_AMOEBE_BD:          return GFX_AMOEBE_BD;
2438     case EL_AMOEBA2DIAM:        return GFX_AMOEBA2DIAM;
2439     case EL_KOKOSNUSS:          return GFX_KOKOSNUSS;
2440     case EL_LIFE:               return GFX_LIFE;
2441     case EL_LIFE_ASYNC:         return GFX_LIFE_ASYNC;
2442     case EL_DYNAMITE_ACTIVE:    return GFX_DYNAMIT;
2443     case EL_BADEWANNE:          return GFX_BADEWANNE;
2444     case EL_BADEWANNE1:         return GFX_BADEWANNE1;
2445     case EL_BADEWANNE2:         return GFX_BADEWANNE2;
2446     case EL_BADEWANNE3:         return GFX_BADEWANNE3;
2447     case EL_BADEWANNE4:         return GFX_BADEWANNE4;
2448     case EL_BADEWANNE5:         return GFX_BADEWANNE5;
2449     case EL_ABLENK_AUS:         return GFX_ABLENK_AUS;
2450     case EL_ABLENK_EIN:         return GFX_ABLENK_EIN;
2451     case EL_SCHLUESSEL1:        return GFX_SCHLUESSEL1;
2452     case EL_SCHLUESSEL2:        return GFX_SCHLUESSEL2;
2453     case EL_SCHLUESSEL3:        return GFX_SCHLUESSEL3;
2454     case EL_SCHLUESSEL4:        return GFX_SCHLUESSEL4;
2455     case EL_PFORTE1:            return GFX_PFORTE1;
2456     case EL_PFORTE2:            return GFX_PFORTE2;
2457     case EL_PFORTE3:            return GFX_PFORTE3;
2458     case EL_PFORTE4:            return GFX_PFORTE4;
2459     case EL_PFORTE1X:           return GFX_PFORTE1X;
2460     case EL_PFORTE2X:           return GFX_PFORTE2X;
2461     case EL_PFORTE3X:           return GFX_PFORTE3X;
2462     case EL_PFORTE4X:           return GFX_PFORTE4X;
2463     case EL_DYNAMITE_INACTIVE:  return GFX_DYNAMIT_AUS;
2464     case EL_PACMAN:             return GFX_PACMAN;
2465     case EL_PACMAN_RIGHT:       return GFX_PACMAN_RIGHT;
2466     case EL_PACMAN_UP:          return GFX_PACMAN_UP;
2467     case EL_PACMAN_LEFT:        return GFX_PACMAN_LEFT;
2468     case EL_PACMAN_DOWN:        return GFX_PACMAN_DOWN;
2469     case EL_UNSICHTBAR:         return GFX_UNSICHTBAR;
2470     case EL_ERZ_EDEL:           return GFX_ERZ_EDEL;
2471     case EL_ERZ_DIAM:           return GFX_ERZ_DIAM;
2472     case EL_BIRNE_AUS:          return GFX_BIRNE_AUS;
2473     case EL_BIRNE_EIN:          return GFX_BIRNE_EIN;
2474     case EL_ZEIT_VOLL:          return GFX_ZEIT_VOLL;
2475     case EL_ZEIT_LEER:          return GFX_ZEIT_LEER;
2476     case EL_MAUER_LEBT:         return GFX_MAUER_LEBT;
2477     case EL_MAUER_X:            return GFX_MAUER_X;
2478     case EL_MAUER_Y:            return GFX_MAUER_Y;
2479     case EL_MAUER_XY:           return GFX_MAUER_XY;
2480     case EL_EDELSTEIN_BD:       return GFX_EDELSTEIN_BD;
2481     case EL_EDELSTEIN_GELB:     return GFX_EDELSTEIN_GELB;
2482     case EL_EDELSTEIN_ROT:      return GFX_EDELSTEIN_ROT;
2483     case EL_EDELSTEIN_LILA:     return GFX_EDELSTEIN_LILA;
2484     case EL_ERZ_EDEL_BD:        return GFX_ERZ_EDEL_BD;
2485     case EL_ERZ_EDEL_GELB:      return GFX_ERZ_EDEL_GELB;
2486     case EL_ERZ_EDEL_ROT:       return GFX_ERZ_EDEL_ROT;
2487     case EL_ERZ_EDEL_LILA:      return GFX_ERZ_EDEL_LILA;
2488     case EL_MAMPFER2:           return GFX_MAMPFER2;
2489     case EL_MAGIC_WALL_BD_OFF:  return GFX_MAGIC_WALL_BD_OFF;
2490     case EL_MAGIC_WALL_BD_EMPTY:return GFX_MAGIC_WALL_BD_EMPTY;
2491     case EL_MAGIC_WALL_BD_EMPTYING:return GFX_MAGIC_WALL_BD_EMPTY;
2492     case EL_MAGIC_WALL_BD_FULL: return GFX_MAGIC_WALL_BD_FULL;
2493     case EL_MAGIC_WALL_BD_DEAD: return GFX_MAGIC_WALL_BD_DEAD;
2494     case EL_DYNABOMB_ACTIVE_1:  return GFX_DYNABOMB;
2495     case EL_DYNABOMB_ACTIVE_2:  return GFX_DYNABOMB;
2496     case EL_DYNABOMB_ACTIVE_3:  return GFX_DYNABOMB;
2497     case EL_DYNABOMB_ACTIVE_4:  return GFX_DYNABOMB;
2498     case EL_DYNABOMB_NR:        return GFX_DYNABOMB_NR;
2499     case EL_DYNABOMB_SZ:        return GFX_DYNABOMB_SZ;
2500     case EL_DYNABOMB_XL:        return GFX_DYNABOMB_XL;
2501     case EL_SOKOBAN_OBJEKT:     return GFX_SOKOBAN_OBJEKT;
2502     case EL_SOKOBAN_FELD_LEER:  return GFX_SOKOBAN_FELD_LEER;
2503     case EL_SOKOBAN_FELD_VOLL:  return GFX_SOKOBAN_FELD_VOLL;
2504     case EL_MOLE:               return GFX_MOLE;
2505     case EL_PINGUIN:            return GFX_PINGUIN;
2506     case EL_SCHWEIN:            return GFX_SCHWEIN;
2507     case EL_DRACHE:             return GFX_DRACHE;
2508     case EL_SONDE:              return GFX_SONDE;
2509     case EL_PFEIL_LEFT:         return GFX_PFEIL_LEFT;
2510     case EL_PFEIL_RIGHT:        return GFX_PFEIL_RIGHT;
2511     case EL_PFEIL_UP:           return GFX_PFEIL_UP;
2512     case EL_PFEIL_DOWN:         return GFX_PFEIL_DOWN;
2513     case EL_SPEED_PILL:         return GFX_SPEED_PILL;
2514     case EL_SP_TERMINAL_ACTIVE: return GFX_SP_TERMINAL;
2515     case EL_SP_BUG_ACTIVE:      return GFX_SP_BUG_ACTIVE;
2516     case EL_SP_ZONK:            return GFX_SP_ZONK;
2517       /* ^^^^^^^^^^ non-standard position in supaplex graphic set! */
2518     case EL_INVISIBLE_STEEL:    return GFX_INVISIBLE_STEEL;
2519     case EL_BLACK_ORB:          return GFX_BLACK_ORB;
2520     case EL_EM_GATE_1:          return GFX_EM_GATE_1;
2521     case EL_EM_GATE_2:          return GFX_EM_GATE_2;
2522     case EL_EM_GATE_3:          return GFX_EM_GATE_3;
2523     case EL_EM_GATE_4:          return GFX_EM_GATE_4;
2524     case EL_EM_GATE_1X:         return GFX_EM_GATE_1X;
2525     case EL_EM_GATE_2X:         return GFX_EM_GATE_2X;
2526     case EL_EM_GATE_3X:         return GFX_EM_GATE_3X;
2527     case EL_EM_GATE_4X:         return GFX_EM_GATE_4X;
2528     case EL_EM_KEY_1_FILE:      return GFX_EM_KEY_1;
2529     case EL_EM_KEY_2_FILE:      return GFX_EM_KEY_2;
2530     case EL_EM_KEY_3_FILE:      return GFX_EM_KEY_3;
2531     case EL_EM_KEY_4_FILE:      return GFX_EM_KEY_4;
2532     case EL_EM_KEY_1:           return GFX_EM_KEY_1;
2533     case EL_EM_KEY_2:           return GFX_EM_KEY_2;
2534     case EL_EM_KEY_3:           return GFX_EM_KEY_3;
2535     case EL_EM_KEY_4:           return GFX_EM_KEY_4;
2536     case EL_PEARL:              return GFX_PEARL;
2537     case EL_CRYSTAL:            return GFX_CRYSTAL;
2538     case EL_WALL_PEARL:         return GFX_WALL_PEARL;
2539     case EL_WALL_CRYSTAL:       return GFX_WALL_CRYSTAL;
2540     case EL_DOOR_WHITE:         return GFX_DOOR_WHITE;
2541     case EL_DOOR_WHITE_GRAY:    return GFX_DOOR_WHITE_GRAY;
2542     case EL_KEY_WHITE:          return GFX_KEY_WHITE;
2543     case EL_SHIELD_PASSIVE:     return GFX_SHIELD_PASSIVE;
2544     case EL_SHIELD_ACTIVE:      return GFX_SHIELD_ACTIVE;
2545     case EL_EXTRA_TIME:         return GFX_EXTRA_TIME;
2546     case EL_SWITCHGATE_OPEN:    return GFX_SWITCHGATE_OPEN;
2547     case EL_SWITCHGATE_CLOSED:  return GFX_SWITCHGATE_CLOSED;
2548     case EL_SWITCHGATE_SWITCH_1:return GFX_SWITCHGATE_SWITCH_1;
2549     case EL_SWITCHGATE_SWITCH_2:return GFX_SWITCHGATE_SWITCH_2;
2550     case EL_BELT1_LEFT:         return GFX_BELT1_LEFT;
2551     case EL_BELT1_MIDDLE:       return GFX_BELT1_MIDDLE;
2552     case EL_BELT1_RIGHT:        return GFX_BELT1_RIGHT;
2553     case EL_BELT1_SWITCH_LEFT:  return GFX_BELT1_SWITCH_LEFT;
2554     case EL_BELT1_SWITCH_MIDDLE:return GFX_BELT1_SWITCH_MIDDLE;
2555     case EL_BELT1_SWITCH_RIGHT: return GFX_BELT1_SWITCH_RIGHT;
2556     case EL_BELT2_LEFT:         return GFX_BELT2_LEFT;
2557     case EL_BELT2_MIDDLE:       return GFX_BELT2_MIDDLE;
2558     case EL_BELT2_RIGHT:        return GFX_BELT2_RIGHT;
2559     case EL_BELT2_SWITCH_LEFT:  return GFX_BELT2_SWITCH_LEFT;
2560     case EL_BELT2_SWITCH_MIDDLE:return GFX_BELT2_SWITCH_MIDDLE;
2561     case EL_BELT2_SWITCH_RIGHT: return GFX_BELT2_SWITCH_RIGHT;
2562     case EL_BELT3_LEFT:         return GFX_BELT3_LEFT;
2563     case EL_BELT3_MIDDLE:       return GFX_BELT3_MIDDLE;
2564     case EL_BELT3_RIGHT:        return GFX_BELT3_RIGHT;
2565     case EL_BELT3_SWITCH_LEFT:  return GFX_BELT3_SWITCH_LEFT;
2566     case EL_BELT3_SWITCH_MIDDLE:return GFX_BELT3_SWITCH_MIDDLE;
2567     case EL_BELT3_SWITCH_RIGHT: return GFX_BELT3_SWITCH_RIGHT;
2568     case EL_BELT4_LEFT:         return GFX_BELT4_LEFT;
2569     case EL_BELT4_MIDDLE:       return GFX_BELT4_MIDDLE;
2570     case EL_BELT4_RIGHT:        return GFX_BELT4_RIGHT;
2571     case EL_BELT4_SWITCH_LEFT:  return GFX_BELT4_SWITCH_LEFT;
2572     case EL_BELT4_SWITCH_MIDDLE:return GFX_BELT4_SWITCH_MIDDLE;
2573     case EL_BELT4_SWITCH_RIGHT: return GFX_BELT4_SWITCH_RIGHT;
2574     case EL_LANDMINE:           return GFX_LANDMINE;
2575     case EL_ENVELOPE:           return GFX_ENVELOPE;
2576     case EL_LIGHT_SWITCH_OFF:   return GFX_LIGHT_SWITCH_OFF;
2577     case EL_LIGHT_SWITCH_ON:    return GFX_LIGHT_SWITCH_ON;
2578     case EL_SIGN_EXCLAMATION:   return GFX_SIGN_EXCLAMATION;
2579     case EL_SIGN_RADIOACTIVITY: return GFX_SIGN_RADIOACTIVITY;
2580     case EL_SIGN_STOP:          return GFX_SIGN_STOP;
2581     case EL_SIGN_WHEELCHAIR:    return GFX_SIGN_WHEELCHAIR;
2582     case EL_SIGN_PARKING:       return GFX_SIGN_PARKING;
2583     case EL_SIGN_ONEWAY:        return GFX_SIGN_ONEWAY;
2584     case EL_SIGN_HEART:         return GFX_SIGN_HEART;
2585     case EL_SIGN_TRIANGLE:      return GFX_SIGN_TRIANGLE;
2586     case EL_SIGN_ROUND:         return GFX_SIGN_ROUND;
2587     case EL_SIGN_EXIT:          return GFX_SIGN_EXIT;
2588     case EL_SIGN_YINYANG:       return GFX_SIGN_YINYANG;
2589     case EL_SIGN_OTHER:         return GFX_SIGN_OTHER;
2590     case EL_MOLE_LEFT:          return GFX_MOLE_LEFT;
2591     case EL_MOLE_RIGHT:         return GFX_MOLE_RIGHT;
2592     case EL_MOLE_UP:            return GFX_MOLE_UP;
2593     case EL_MOLE_DOWN:          return GFX_MOLE_DOWN;
2594     case EL_STEEL_SLANTED:      return GFX_STEEL_SLANTED;
2595     case EL_SAND_INVISIBLE:     return GFX_SAND_INVISIBLE;
2596     case EL_DX_UNKNOWN_15:      return GFX_DX_UNKNOWN_15;
2597     case EL_DX_UNKNOWN_42:      return GFX_DX_UNKNOWN_42;
2598     case EL_TIMEGATE_OPEN:      return GFX_TIMEGATE_OPEN;
2599     case EL_TIMEGATE_CLOSED:    return GFX_TIMEGATE_CLOSED;
2600     case EL_TIMEGATE_SWITCH_ON: return GFX_TIMEGATE_SWITCH;
2601     case EL_TIMEGATE_SWITCH_OFF:return GFX_TIMEGATE_SWITCH;
2602     case EL_BALLOON:            return GFX_BALLOON;
2603     case EL_BALLOON_SEND_LEFT:  return GFX_BALLOON_SEND_LEFT;
2604     case EL_BALLOON_SEND_RIGHT: return GFX_BALLOON_SEND_RIGHT;
2605     case EL_BALLOON_SEND_UP:    return GFX_BALLOON_SEND_UP;
2606     case EL_BALLOON_SEND_DOWN:  return GFX_BALLOON_SEND_DOWN;
2607     case EL_BALLOON_SEND_ANY:   return GFX_BALLOON_SEND_ANY;
2608     case EL_EMC_STEEL_WALL_1:   return GFX_EMC_STEEL_WALL_1;
2609     case EL_EMC_STEEL_WALL_2:   return GFX_EMC_STEEL_WALL_2;
2610     case EL_EMC_STEEL_WALL_3:   return GFX_EMC_STEEL_WALL_3;
2611     case EL_EMC_STEEL_WALL_4:   return GFX_EMC_STEEL_WALL_4;
2612     case EL_EMC_WALL_1:         return GFX_EMC_WALL_1;
2613     case EL_EMC_WALL_2:         return GFX_EMC_WALL_2;
2614     case EL_EMC_WALL_3:         return GFX_EMC_WALL_3;
2615     case EL_EMC_WALL_4:         return GFX_EMC_WALL_4;
2616     case EL_EMC_WALL_5:         return GFX_EMC_WALL_5;
2617     case EL_EMC_WALL_6:         return GFX_EMC_WALL_6;
2618     case EL_EMC_WALL_7:         return GFX_EMC_WALL_7;
2619     case EL_EMC_WALL_8:         return GFX_EMC_WALL_8;
2620     case EL_TUBE_CROSS:         return GFX_TUBE_CROSS;
2621     case EL_TUBE_VERTICAL:      return GFX_TUBE_VERTICAL;
2622     case EL_TUBE_HORIZONTAL:    return GFX_TUBE_HORIZONTAL;
2623     case EL_TUBE_VERT_LEFT:     return GFX_TUBE_VERT_LEFT;
2624     case EL_TUBE_VERT_RIGHT:    return GFX_TUBE_VERT_RIGHT;
2625     case EL_TUBE_HORIZ_UP:      return GFX_TUBE_HORIZ_UP;
2626     case EL_TUBE_HORIZ_DOWN:    return GFX_TUBE_HORIZ_DOWN;
2627     case EL_TUBE_LEFT_UP:       return GFX_TUBE_LEFT_UP;
2628     case EL_TUBE_LEFT_DOWN:     return GFX_TUBE_LEFT_DOWN;
2629     case EL_TUBE_RIGHT_UP:      return GFX_TUBE_RIGHT_UP;
2630     case EL_TUBE_RIGHT_DOWN:    return GFX_TUBE_RIGHT_DOWN;
2631     case EL_SPRING:             return GFX_SPRING;
2632     case EL_SPRING_MOVING:      return GFX_SPRING;
2633     case EL_TRAP_INACTIVE:      return GFX_TRAP_INACTIVE;
2634     case EL_TRAP_ACTIVE:        return GFX_TRAP_ACTIVE;
2635     case EL_BD_WALL:            return GFX_BD_WALL;
2636     case EL_BD_ROCK:            return GFX_BD_ROCK;
2637     case EL_DX_SUPABOMB:        return GFX_DX_SUPABOMB;
2638     case EL_SP_MURPHY_CLONE:    return GFX_SP_MURPHY_CLONE;
2639
2640     default:
2641     {
2642       if (IS_CHAR(element))
2643         return GFX_CHAR_START + (element - EL_CHAR_START);
2644       else if (element >= EL_SP_START && element <= EL_SP_END)
2645       {
2646         int nr_element = element - EL_SP_START;
2647         int gfx_per_line = 8;
2648         int nr_graphic =
2649           (nr_element / gfx_per_line) * SP_PER_LINE +
2650           (nr_element % gfx_per_line);
2651
2652         return GFX_START_ROCKSSP + nr_graphic;
2653       }
2654       else
2655         return -1;
2656     }
2657   }
2658 }