I was wondering if there's a way to set an invisible bounding box in a room. For instance, I am making some rooms which are to scale to the character, with low ceilings (you can't see them obviously) so I don't want the player to be able to jump on the outside bounding walls. They are not to the ceiling for a reason...is there a way to make it so that they can jump as normal but cannot jump on the outside wall?

I've attached a picture pointing out what I mean. The outside walls and wall separating the bedroom shouldn't be objects that can be jumped onto since it's implied they connect to a ceiling.

Any help would be appreciated.