How would you like this to work? I envision buildings having a life property and a property that marks them as a building similar to an enemy tag. Then if a troll was close to a building they would stop moving and attack it. The troll would keep beating on the building the building is destroyed. Do you think trolls should stop moving when they throw rocks too? I think that makes more sense. What about being able to shoot rocks out of the air? Should that be allowed? Or are we sticking with dodging only.