void DrawLevelFieldThruMask(int, int);
void DrawLevelFieldCrumbledSand(int, int);
void DrawLevelFieldCrumbledSandDigging(int, int, int, int);
void DrawLevelFieldThruMask(int, int);
void DrawLevelFieldCrumbledSand(int, int);
void DrawLevelFieldCrumbledSandDigging(int, int, int, int);