| Name | Description |
|---|---|
| DamagedWall | DamagedWall has health from (0,1) excl. If health leq 0, it is replaced by DestroyedWall. Only way how to make damage is to use pickaxe. |
| DestroyedWall | |
| Obstacle | |
| Wall | Wall can be transformed to DamagedWall if pickaxe is used |