Änderungen

Summary

1. Update Heightmap.wurst (details)
2. Update Heightmap.wurst (details)
3. use heightmap everywhere (details)

Commit f91dd52c996926403a14ae70e6e52b98eca16f45 by frotty Update Heightmap.wurst
	wurst/test/Heightmap.wurst (diff)
Commit e58b27d2c5a18ad50fe25f74a4b6bc982a18100c by frotty Update Heightmap.wurst
	wurst/test/Heightmap.wurst (diff)
Commit 64aa73d41558be0ad69297ef006c084eae198266 by frotty use heightmap everywhere
	wurst/entity/Entity.wurst (diff)
	wurst/test/Heightmap.wurst (diff)
	wurst/physics/PhysicsEntity.wurst (diff)