Scratched vents: Difference between revisions

'''Scratched vents''' are a variety of wall trap that spawns 4 {{favilink|chute crab|plural}}, one from each of it's faces, every 3 turns, so long as the scratched vents were visible to the player at least once. The scratched vents will indicate when they are about to spawn crabs by flashing white the turn prior. If the vents are blocked on any of it's 4 sides by a solid obstacle, such as a wall, that side will be unable to spawn chute crabs.

Scratched vents can continue to spawn crabs if it's sides are blocked by an existing crab or other creature, by spawning the crab adjacent to the creature in the way. However, it cannot do so if it would have to place the newly spawned crab more than 3 tiles from the vents.  

If the scratched vents are [[Broken|broken]], [[Rusted|rusted]], or affected by EMP, it will cease to function.<ref><code>XRL.World.Parts.WalltrapCrabs</code></ref>