#include "global.h"
extern long mScrollX, mScrollY;
+extern long mScrollX_last, mScrollY_last;
extern boolean redraw[MAX_BUF_XSIZE][MAX_BUF_YSIZE];
extern void InitScrollPlayfield();
extern void UpdatePlayfield();
+extern void RestorePlayfield();
extern void DDScrollBuffer_Blt_Ext(Bitmap *);
extern void DDScrollBuffer_Blt();