+void DrawGraphicShiftedThruMask(int x,int y, int dx,int dy, int graphic,
+ int cut_mode)
+{
+ int width = TILEX, height = TILEY;
+ int cx = 0, cy = 0;
+ int src_x,src_y, dest_x,dest_y;
+
+ if (graphic < 0)
+ {
+ DrawGraphic(x,y,graphic);
+ return;
+ }
+
+ if (dx || dy) /* Verschiebung der Grafik? */
+ {
+ if (x < BX1) /* Element kommt von links ins Bild */
+ {
+ x = BX1;
+ width = dx;
+ cx = TILEX - dx;
+ dx = 0;
+ }
+ else if (x > BX2) /* Element kommt von rechts ins Bild */
+ {
+ x = BX2;
+ width = -dx;
+ dx = TILEX + dx;
+ }
+ else if (x==BX1 && dx<0) /* Element verläßt links das Bild */
+ {
+ width += dx;
+ cx = -dx;
+ dx = 0;
+ }
+ else if (x==BX2 && dx>0) /* Element verläßt rechts das Bild */
+ width -= dx;
+ else if (dx) /* allg. Bewegung in x-Richtung */
+ redraw[redraw_x1 + x + SIGN(dx)][redraw_y1 + y] = TRUE;
+
+ if (y < BY1) /* Element kommt von oben ins Bild */
+ {
+ if (cut_mode==CUT_BELOW) /* Element oberhalb des Bildes */
+ return;
+
+ y = BY1;
+ height = dy;
+ cy = TILEY - dy;
+ dy = 0;
+ }
+ else if (y > BY2) /* Element kommt von unten ins Bild */
+ {
+ y = BY2;
+ height = -dy;
+ dy = TILEY + dy;
+ }
+ else if (y==BY1 && dy<0) /* Element verläßt oben das Bild */
+ {
+ height += dy;
+ cy = -dy;
+ dy = 0;
+ }
+ else if (dy > 0 && cut_mode==CUT_ABOVE)
+ {
+ if (y == BY2) /* Element unterhalb des Bildes */
+ return;
+
+ height = dy;
+ cy = TILEY-dy;
+ dy = TILEY;
+ redraw[redraw_x1 + x][redraw_y1 + y + 1] = TRUE;
+ } /* Element verläßt unten das Bild */
+ else if (dy > 0 && (y == BY2 || cut_mode==CUT_BELOW))
+ height -= dy;
+ else if (dy) /* allg. Bewegung in y-Richtung */
+ redraw[redraw_x1 + x][redraw_y1 + y + SIGN(dy)] = TRUE;
+ }
+
+ if (graphic >= GFX_START_ROCKSSCREEN && graphic <= GFX_END_ROCKSSCREEN)
+ {
+ graphic -= GFX_START_ROCKSSCREEN;
+ src_x = SX+(graphic % GFX_PER_LINE)*TILEX+cx;
+ src_y = SY+(graphic / GFX_PER_LINE)*TILEY+cy;
+ dest_x = FX+x*TILEX+dx;
+ dest_y = FY+y*TILEY+dy;
+
+ XSetClipOrigin(display,clip_gc[PIX_BACK],dest_x-src_x,dest_y-src_y);
+ XCopyArea(display,pix[PIX_BACK],drawto_field,clip_gc[PIX_BACK],
+ src_x,src_y, width,height, dest_x,dest_y);
+ }
+ else if (graphic >= GFX_START_ROCKSHEROES && graphic <= GFX_END_ROCKSHEROES)
+ {
+ graphic -= GFX_START_ROCKSHEROES;
+ src_x = (graphic % HEROES_PER_LINE)*TILEX+cx;
+ src_y = (graphic / HEROES_PER_LINE)*TILEY+cy;
+ dest_x = FX+x*TILEX+dx;
+ dest_y = FY+y*TILEY+dy;
+
+ XSetClipOrigin(display,clip_gc[PIX_HEROES],dest_x-src_x,dest_y-src_y);
+ XCopyArea(display,pix[PIX_HEROES],drawto_field,clip_gc[PIX_HEROES],
+ src_x,src_y, width,height, dest_x,dest_y);
+ }
+
+#if DEBUG
+ if (!IN_SCR_FIELD(x,y))
+ {
+ printf("DrawGraphicShiftedThruMask(): x = %d, y = %d, graphic = %d\n",
+ x,y,graphic);
+ printf("DrawGraphicShifted(): This should never happen!\n");
+ return;
+ }
+#endif
+
+ redraw_tiles++;
+ redraw[redraw_x1 + x][redraw_y1 + y] = TRUE;
+ redraw_mask |= REDRAW_TILES;
+}
+