+#endif
+
+ BackToFront();
+}
+
+void SetMainBackgroundImage(int graphic)
+{
+ SetMainBackgroundBitmap(graphic == IMG_UNDEFINED ? NULL :
+ graphic_info[graphic].bitmap ?
+ graphic_info[graphic].bitmap :
+ graphic_info[IMG_BACKGROUND].bitmap);
+}
+
+void SetDoorBackgroundImage(int graphic)
+{
+ SetDoorBackgroundBitmap(graphic == IMG_UNDEFINED ? NULL :
+ graphic_info[graphic].bitmap ?
+ graphic_info[graphic].bitmap :
+ graphic_info[IMG_BACKGROUND].bitmap);
+}
+
+void DrawBackground(int dest_x, int dest_y, int width, int height)
+{
+ ClearRectangleOnBackground(backbuffer, dest_x, dest_y, width, height);
+
+ redraw_mask |= REDRAW_FIELD;
+}
+
+void ClearWindow()
+{
+ DrawBackground(REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
+
+ if (setup.soft_scrolling && game_status == GAME_MODE_PLAYING)
+ {
+ ClearRectangle(fieldbuffer, 0, 0, FXSIZE, FYSIZE);
+ SetDrawtoField(DRAW_BUFFERED);
+ }
+ else
+ SetDrawtoField(DRAW_BACKBUFFER);
+
+ if (setup.direct_draw && game_status == GAME_MODE_PLAYING)
+ {
+ ClearRectangle(window, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
+ SetDrawtoField(DRAW_DIRECT);
+ }
+}
+
+void MarkTileDirty(int x, int y)
+{
+ int xx = redraw_x1 + x;
+ int yy = redraw_y1 + y;
+
+ if (!redraw[xx][yy])
+ redraw_tiles++;
+
+ redraw[xx][yy] = TRUE;
+ redraw_mask |= REDRAW_TILES;
+}
+
+void SetBorderElement()
+{
+ int x, y;
+
+ BorderElement = EL_EMPTY;
+
+ for (y = 0; y < lev_fieldy && BorderElement == EL_EMPTY; y++)
+ {
+ for (x = 0; x < lev_fieldx; x++)
+ {
+ if (!IS_INDESTRUCTIBLE(Feld[x][y]))
+ BorderElement = EL_STEELWALL;
+
+ if (y != 0 && y != lev_fieldy - 1 && x != lev_fieldx - 1)
+ x = lev_fieldx - 2;
+ }
+ }
+}
+
+void SetRandomAnimationValue(int x, int y)
+{
+ gfx.anim_random_frame = GfxRandom[x][y];
+}
+
+inline int getGraphicAnimationFrame(int graphic, int sync_frame)
+{
+ /* animation synchronized with global frame counter, not move position */
+ if (graphic_info[graphic].anim_global_sync || sync_frame < 0)
+ sync_frame = FrameCounter;
+
+ return getAnimationFrame(graphic_info[graphic].anim_frames,
+ graphic_info[graphic].anim_delay,
+ graphic_info[graphic].anim_mode,
+ graphic_info[graphic].anim_start_frame,
+ sync_frame);
+}
+
+inline void DrawGraphicAnimationExt(DrawBuffer *dst_bitmap, int x, int y,
+ int graphic, int sync_frame, int mask_mode)
+{
+ int frame = getGraphicAnimationFrame(graphic, sync_frame);
+
+ if (mask_mode == USE_MASKING)
+ DrawGraphicThruMaskExt(dst_bitmap, x, y, graphic, frame);
+ else
+ DrawGraphicExt(dst_bitmap, x, y, graphic, frame);
+}
+
+inline void DrawGraphicAnimation(int x, int y, int graphic)
+{
+ int lx = LEVELX(x), ly = LEVELY(y);
+
+ if (!IN_SCR_FIELD(x, y))
+ return;
+
+ DrawGraphicAnimationExt(drawto_field, FX + x * TILEX, FY + y * TILEY,
+ graphic, GfxFrame[lx][ly], NO_MASKING);
+ MarkTileDirty(x, y);
+}
+
+void DrawLevelGraphicAnimation(int x, int y, int graphic)
+{
+ DrawGraphicAnimation(SCREENX(x), SCREENY(y), graphic);
+}
+
+void DrawLevelElementAnimation(int x, int y, int element)
+{
+#if 1
+ int graphic = el_act_dir2img(element, GfxAction[x][y], GfxDir[x][y]);
+
+ DrawGraphicAnimation(SCREENX(x), SCREENY(y), graphic);
+#else
+ DrawGraphicAnimation(SCREENX(x), SCREENY(y), el2img(element));
+#endif
+}
+
+inline void DrawLevelGraphicAnimationIfNeeded(int x, int y, int graphic)
+{
+ int sx = SCREENX(x), sy = SCREENY(y);
+
+ if (!IN_LEV_FIELD(x, y) || !IN_SCR_FIELD(sx, sy))
+ return;
+
+ if (!IS_NEW_FRAME(GfxFrame[x][y], graphic))
+ return;
+
+ DrawGraphicAnimation(sx, sy, graphic);
+
+ if (GFX_CRUMBLED(Feld[x][y]))
+ DrawLevelFieldCrumbledSand(x, y);
+}
+
+void DrawLevelElementAnimationIfNeeded(int x, int y, int element)
+{
+ int sx = SCREENX(x), sy = SCREENY(y);
+ int graphic;
+
+ if (!IN_LEV_FIELD(x, y) || !IN_SCR_FIELD(sx, sy))
+ return;
+
+ graphic = el_act_dir2img(element, GfxAction[x][y], GfxDir[x][y]);
+
+ if (!IS_NEW_FRAME(GfxFrame[x][y], graphic))
+ return;
+
+ DrawGraphicAnimation(sx, sy, graphic);
+
+ if (GFX_CRUMBLED(element))
+ DrawLevelFieldCrumbledSand(x, y);
+}
+
+static int getPlayerGraphic(struct PlayerInfo *player, int move_dir)
+{
+ if (player->use_murphy_graphic)
+ {
+ /* this works only because currently only one player can be "murphy" ... */
+ static int last_horizontal_dir = MV_LEFT;
+ int graphic = el_act_dir2img(EL_SP_MURPHY, player->GfxAction, move_dir);
+
+ if (move_dir == MV_LEFT || move_dir == MV_RIGHT)
+ last_horizontal_dir = move_dir;
+
+ if (graphic == IMG_SP_MURPHY) /* undefined => use special graphic */
+ {
+ int direction = (player->is_snapping ? move_dir : last_horizontal_dir);
+
+ graphic = el_act_dir2img(EL_SP_MURPHY, player->GfxAction, direction);
+ }
+
+ return graphic;
+ }
+ else
+ return el_act_dir2img(player->element_nr, player->GfxAction, move_dir);
+}
+
+static boolean equalGraphics(int graphic1, int graphic2)
+{
+ struct GraphicInfo *g1 = &graphic_info[graphic1];
+ struct GraphicInfo *g2 = &graphic_info[graphic2];
+
+ return (g1->bitmap == g2->bitmap &&
+ g1->src_x == g2->src_x &&
+ g1->src_y == g2->src_y &&
+ g1->anim_frames == g2->anim_frames &&
+ g1->anim_delay == g2->anim_delay &&
+ g1->anim_mode == g2->anim_mode);
+}
+
+void DrawAllPlayers()
+{
+ int i;
+
+ for (i = 0; i < MAX_PLAYERS; i++)
+ if (stored_player[i].active)
+ DrawPlayer(&stored_player[i]);
+}
+
+void DrawPlayerField(int x, int y)
+{
+ if (!IS_PLAYER(x, y))
+ return;
+
+ DrawPlayer(PLAYERINFO(x, y));
+}
+
+void DrawPlayer(struct PlayerInfo *player)
+{
+ int jx = player->jx;
+ int jy = player->jy;
+ int move_dir = player->MovDir;
+#if 0
+ int last_jx = player->last_jx;
+ int last_jy = player->last_jy;
+ int next_jx = jx + (jx - last_jx);
+ int next_jy = jy + (jy - last_jy);
+ boolean player_is_moving = (last_jx != jx || last_jy != jy ? TRUE : FALSE);
+#else
+ int dx = (move_dir == MV_LEFT ? -1 : move_dir == MV_RIGHT ? +1 : 0);
+ int dy = (move_dir == MV_UP ? -1 : move_dir == MV_DOWN ? +1 : 0);
+ int last_jx = (player->is_moving ? jx - dx : jx);
+ int last_jy = (player->is_moving ? jy - dy : jy);
+ int next_jx = jx + dx;
+ int next_jy = jy + dy;
+ boolean player_is_moving = (player->MovPos ? TRUE : FALSE);
+#endif
+ int sx = SCREENX(jx), sy = SCREENY(jy);
+ int sxx = 0, syy = 0;
+ int element = Feld[jx][jy], last_element = Feld[last_jx][last_jy];
+ int graphic;
+ int action = ACTION_DEFAULT;
+ int last_player_graphic = getPlayerGraphic(player, move_dir);
+ int last_player_frame = player->Frame;
+ int frame = 0;
+
+ if (!player->active || !IN_SCR_FIELD(SCREENX(last_jx), SCREENY(last_jy)))
+ return;
+
+#if DEBUG
+ if (!IN_LEV_FIELD(jx, jy))
+ {
+ printf("DrawPlayerField(): x = %d, y = %d\n",jx,jy);
+ printf("DrawPlayerField(): sx = %d, sy = %d\n",sx,sy);
+ printf("DrawPlayerField(): This should never happen!\n");
+ return;
+ }
+#endif
+
+ if (element == EL_EXPLOSION)
+ return;
+
+ action = (player->is_pushing ? ACTION_PUSHING :
+ player->is_digging ? ACTION_DIGGING :
+ player->is_collecting ? ACTION_COLLECTING :
+ player->is_moving ? ACTION_MOVING :
+ player->is_snapping ? ACTION_SNAPPING :
+ player->is_dropping ? ACTION_DROPPING :
+ player->is_waiting ? player->action_waiting : ACTION_DEFAULT);
+
+ InitPlayerGfxAnimation(player, action, move_dir);
+
+ /* ----------------------------------------------------------------------- */
+ /* draw things in the field the player is leaving, if needed */
+ /* ----------------------------------------------------------------------- */
+
+#if 1
+ if (player->is_moving)
+#else
+ if (player_is_moving)
+#endif
+ {
+ if (Back[last_jx][last_jy] && IS_DRAWABLE(last_element))
+ {
+ DrawLevelElement(last_jx, last_jy, Back[last_jx][last_jy]);
+
+ if (last_element == EL_DYNAMITE_ACTIVE ||
+ last_element == EL_SP_DISK_RED_ACTIVE)
+ DrawDynamite(last_jx, last_jy);
+ else
+ DrawLevelFieldThruMask(last_jx, last_jy);
+ }
+ else if (last_element == EL_DYNAMITE_ACTIVE ||
+ last_element == EL_SP_DISK_RED_ACTIVE)
+ DrawDynamite(last_jx, last_jy);
+ else
+ DrawLevelField(last_jx, last_jy);
+
+ if (player->is_pushing && IN_SCR_FIELD(SCREENX(next_jx), SCREENY(next_jy)))
+ DrawLevelElement(next_jx, next_jy, EL_EMPTY);
+ }
+
+ if (!IN_SCR_FIELD(sx, sy))
+ return;
+
+ if (setup.direct_draw)
+ SetDrawtoField(DRAW_BUFFERED);
+
+ /* ----------------------------------------------------------------------- */
+ /* draw things behind the player, if needed */
+ /* ----------------------------------------------------------------------- */
+
+ if (Back[jx][jy])
+ DrawLevelElement(jx, jy, Back[jx][jy]);
+ else if (IS_ACTIVE_BOMB(element))
+ DrawLevelElement(jx, jy, EL_EMPTY);
+ else
+ {
+ if (player_is_moving && GfxElement[jx][jy] != EL_UNDEFINED)
+ {
+ if (GFX_CRUMBLED(GfxElement[jx][jy]))
+ DrawLevelFieldCrumbledSandDigging(jx, jy, move_dir, player->StepFrame);
+ else
+ {
+ int old_element = GfxElement[jx][jy];
+ int old_graphic = el_act_dir2img(old_element, action, move_dir);
+ int frame = getGraphicAnimationFrame(old_graphic, player->StepFrame);
+
+ DrawGraphic(sx, sy, old_graphic, frame);
+ }
+ }
+ else
+ {
+ GfxElement[jx][jy] = EL_UNDEFINED;
+
+ DrawLevelField(jx, jy);
+ }
+ }
+
+ /* ----------------------------------------------------------------------- */
+ /* draw player himself */
+ /* ----------------------------------------------------------------------- */
+
+#if 1
+
+ graphic = getPlayerGraphic(player, move_dir);
+
+ /* in the case of changed player action or direction, prevent the current
+ animation frame from being restarted for identical animations */
+ if (player->Frame == 0 && equalGraphics(graphic, last_player_graphic))
+ player->Frame = last_player_frame;
+
+#else
+
+ if (player->use_murphy_graphic)
+ {
+ static int last_horizontal_dir = MV_LEFT;
+
+ if (move_dir == MV_LEFT || move_dir == MV_RIGHT)
+ last_horizontal_dir = move_dir;
+
+ graphic = el_act_dir2img(EL_SP_MURPHY, player->GfxAction, move_dir);
+
+ if (graphic == IMG_SP_MURPHY) /* undefined => use special graphic */
+ {
+ int direction = (player->is_snapping ? move_dir : last_horizontal_dir);
+
+ graphic = el_act_dir2img(EL_SP_MURPHY, player->GfxAction, direction);
+ }
+ }
+ else
+ graphic = el_act_dir2img(player->element_nr, player->GfxAction, move_dir);
+
+#endif
+
+ frame = getGraphicAnimationFrame(graphic, player->Frame);
+
+ if (player->GfxPos)
+ {
+ if (move_dir == MV_LEFT || move_dir == MV_RIGHT)
+ sxx = player->GfxPos;
+ else
+ syy = player->GfxPos;
+ }
+
+ if (!setup.soft_scrolling && ScreenMovPos)
+ sxx = syy = 0;
+
+ DrawGraphicShiftedThruMask(sx, sy, sxx, syy, graphic, frame, NO_CUTTING);
+
+ if (SHIELD_ON(player))
+ {
+ int graphic = (player->shield_deadly_time_left ? IMG_SHIELD_DEADLY_ACTIVE :
+ IMG_SHIELD_NORMAL_ACTIVE);
+ int frame = getGraphicAnimationFrame(graphic, -1);
+
+ DrawGraphicShiftedThruMask(sx, sy, sxx, syy, graphic, frame, NO_CUTTING);
+ }
+
+ /* ----------------------------------------------------------------------- */
+ /* draw things the player is pushing, if needed */
+ /* ----------------------------------------------------------------------- */
+
+#if 0
+ printf("::: %d, %d [%d, %d] [%d]\n",
+ player->is_pushing, player_is_moving, player->GfxAction,
+ player->is_moving, player_is_moving);
+#endif
+
+#if 1
+ if (player->is_pushing && player->is_moving)
+#else
+ if (player->is_pushing && player_is_moving)
+#endif
+ {
+ int px = SCREENX(next_jx), py = SCREENY(next_jy);
+
+ if (Back[next_jx][next_jy])
+ DrawLevelElement(next_jx, next_jy, Back[next_jx][next_jy]);
+
+ if ((sxx || syy) && element == EL_SOKOBAN_OBJECT)
+ DrawGraphicShiftedThruMask(px, py, sxx, syy, IMG_SOKOBAN_OBJECT, 0,
+ NO_CUTTING);
+ else
+ {
+ int element = MovingOrBlocked2Element(next_jx, next_jy);
+ int graphic = el_act_dir2img(element, ACTION_PUSHING, move_dir);
+#if 1
+ int frame = getGraphicAnimationFrame(graphic, player->StepFrame);
+#else
+ int frame = getGraphicAnimationFrame(graphic, player->Frame);
+#endif
+
+ DrawGraphicShifted(px, py, sxx, syy, graphic, frame,
+ NO_CUTTING, NO_MASKING);
+ }
+ }
+
+ /* ----------------------------------------------------------------------- */
+ /* draw things in front of player (active dynamite or dynabombs) */
+ /* ----------------------------------------------------------------------- */
+
+ if (IS_ACTIVE_BOMB(element))
+ {
+ graphic = el2img(element);
+ frame = getGraphicAnimationFrame(graphic, GfxFrame[jx][jy]);
+
+ if (game.emulation == EMU_SUPAPLEX)
+ DrawGraphic(sx, sy, IMG_SP_DISK_RED, frame);
+ else
+ DrawGraphicThruMask(sx, sy, graphic, frame);
+ }
+
+ if (player_is_moving && last_element == EL_EXPLOSION)
+ {
+ int graphic = el_act2img(GfxElement[last_jx][last_jy], ACTION_EXPLODING);
+ int delay = (game.emulation == EMU_SUPAPLEX ? 3 : 2);
+ int phase = ExplodePhase[last_jx][last_jy] - 1;
+ int frame = getGraphicAnimationFrame(graphic, phase - delay);
+
+ if (phase >= delay)
+ DrawGraphicThruMask(SCREENX(last_jx), SCREENY(last_jy), graphic, frame);
+ }
+
+ /* ----------------------------------------------------------------------- */
+ /* draw elements the player is just walking/passing through/under */
+ /* ----------------------------------------------------------------------- */
+
+ if (player_is_moving)
+ {
+ /* handle the field the player is leaving ... */
+ if (IS_ACCESSIBLE_INSIDE(last_element))
+ DrawLevelField(last_jx, last_jy);
+ else if (IS_ACCESSIBLE_UNDER(last_element))
+ DrawLevelFieldThruMask(last_jx, last_jy);
+ }
+
+#if 1
+ /* do not redraw accessible elements if the player is just pushing them */
+ if (!player_is_moving || !player->is_pushing)
+ {
+ /* ... and the field the player is entering */
+ if (IS_ACCESSIBLE_INSIDE(element))
+ DrawLevelField(jx, jy);
+ else if (IS_ACCESSIBLE_UNDER(element))
+ DrawLevelFieldThruMask(jx, jy);
+ }