Made this little script to allow player through an open door but then closes behind him (use a trigger zone to close the door). It cannot be opened again. I have seen this is a few fps games:
;Artificial Intelligence Script
;Header
desc = Remote Controlled Door (Open initially and Closed by trigger)
;Triggers
:state=0:state=1,setframe=0,sound=$0
:state=1:incframe=0
:state=1,frameatend=0:state=2,coloff
:state=2,activated=1:state=3,sound=$1,colon
:state=3:decframe=0
:state=3,frameatstart=0:setframe=0
;End of Script
