+void BlitScreenToBitmap_SP(Bitmap *target_bitmap)
+{
+ /* copy playfield buffer to target bitmap at scroll position */
+
+ int px = 2 * TILEX + (mScrollX - mScrollX_last) % TILEX;
+ int py = 2 * TILEY + (mScrollY - mScrollY_last) % TILEY;
+ int sx, sy, sxsize, sysize;
+ int xsize = SXSIZE;
+ int ysize = SYSIZE;
+ int full_xsize = (FieldWidth - (menBorder ? 0 : 1)) * TILEX_VAR;
+ int full_ysize = (FieldHeight - (menBorder ? 0 : 1)) * TILEY_VAR;
+
+ sxsize = (full_xsize < xsize ? full_xsize : xsize);
+ sysize = (full_ysize < ysize ? full_ysize : ysize);
+ sx = SX + (full_xsize < xsize ? (xsize - full_xsize) / 2 : 0);
+ sy = SY + (full_ysize < ysize ? (ysize - full_ysize) / 2 : 0);
+
+ /* scroll correction for even number of visible tiles (half tile shifted) */
+ px += game_sp.scroll_xoffset;
+ py += game_sp.scroll_yoffset;
+
+ if (ExplosionShakeMurphy != 0)
+ {
+ px += TILEX / 2 - GetSimpleRandom(TILEX + 1);
+ py += TILEY / 2 - GetSimpleRandom(TILEX + 1);
+ }
+
+ px = px * TILESIZE_VAR / TILESIZE;
+ py = py * TILESIZE_VAR / TILESIZE;
+
+ BlitBitmap(bitmap_db_field_sp, target_bitmap, px, py, sxsize, sysize, sx, sy);