Abyssal pits can block corridors and brick maps

Bug Report ID: #3869207925

It actaully happens quite a lot. You can't roll over the pit, you can't fire projectiles over the pit (twister). It just breaks the map. I don't see any reason why the pit isn't just a visual thing and not and invisible pillar that can't be passed. At least make it small enough that it can never block a pathway.