Coded Doors

Is there anyway to use scripting to create coded doors; that is doors where you must enter a numerical passcode in order to unlock/open them?

As I am working on the Doom RPG/PC project, the coded doors are practically integral to the gameplay of the game.
So yeah.


Possible or not?

if its for zdoom sure. try looking at my pad demo.
http://69.9.26.90/pad.zip

Awesome :D
I'll crack that open and have a look at how you did that, if you don't mind.
Cheers.