extern boolean LoadNativeLevel_SP(char *, int, boolean);
extern void SaveNativeLevel_SP(char *);
-extern void BackToFront_SP(void);
+extern int getFieldbufferOffsetX_SP();
+extern int getFieldbufferOffsetY_SP();
+
extern void BlitScreenToBitmap_SP(Bitmap *);
extern void RedrawPlayfield_SP(boolean);