is it possible to make a 1 way wall?

hello map friends

im making a hallway leading into a room but need it so that when you walk into the room, you cant turn back.

essentially what im after is an invisible wall you walk through but you cant go through from the other side.
if not, i could just build a button activated door i guess.

there’s no real way to do it, but you can have a trigger_multiple

onstarttouchall door_func_brush disable
onendtouchall door_func_brush enable

just to add to Stiffy360’s comment make sure the trigger is in part way of the wall or when the player don’t touch the trigger the wall will be enabled with the player stuck in it :slight_smile: or reenble the wall after a second or 2 :slight_smile: