Added in lifts this morning along with more door types. I wish Carmack had used bit flags for all the different trigger types, rather then assigning lines random I.D. numbers. It sure would have made this a lot easier, since I despise huge switch statements.

Anyway here's an animation of me activating and riding the lift in MAP06.





Edit:

Added in support for manual doors, the kind you have to activate with the space bar. Here I've moved the red player into the large blue room in MAP01 and the green player outside the door. The camera is set to the red player and the controls set to the green player, who activates the door.