void DrawScreenElementThruMask(int, int, int);
void DrawLevelElementThruMask(int, int, int);
void DrawLevelFieldThruMask(int, int);
-void DrawLevelFieldCrumbledSand(int, int);
-void DrawLevelFieldCrumbledSandDigging(int, int, int, int);
-void DrawLevelFieldCrumbledSandNeighbours(int, int);
+void DrawLevelFieldCrumbled(int, int);
+void DrawLevelFieldCrumbledDigging(int, int, int, int);
+void DrawLevelFieldCrumbledNeighbours(int, int);
void DrawScreenElement(int, int, int);
void DrawLevelElement(int, int, int);
void DrawScreenField(int, int);