void DrawLevelFieldCrumbled(int, int);
void DrawLevelFieldCrumbledDigging(int, int, int, int);
void DrawLevelFieldCrumbledNeighbours(int, int);
void DrawLevelFieldCrumbled(int, int);
void DrawLevelFieldCrumbledDigging(int, int, int, int);
void DrawLevelFieldCrumbledNeighbours(int, int);