extern int Min(int A, int B);
extern int Max(int A, int B);
extern int Min(int A, int B);
extern int Max(int A, int B);
extern LevelInfoType LInfo;
extern int ScrollMinX, ScrollMaxX, ScrollMinY, ScrollMaxY;
extern int ScrollX, ScrollY;
extern LevelInfoType LInfo;
extern int ScrollMinX, ScrollMaxX, ScrollMinY, ScrollMaxY;
extern int ScrollX, ScrollY;