Making a rotating door isnt as hard as you might think, its just
a question of doing a little bit more than your normal door.
you have you door in place, select the "origin" texture
from the textures. Now this is going to be our pivot, in other
words where the door is going to rotate. Best shown in pic form:
it is, looking rather odd. we can see a block there with the origin
texture on, you dont have to have it sticking out, I mean the
width, it doesn't have to, as long as its in the door, where it
wants to pivot, it'll be fine. The origin texture will go invisible
in the game anyway.
hopefully you have your door set up like mine, now select both
the door and the origin block!, right click, and tie to entity,
choose func_door_rotating. now in the fx amount give it a value
of 255, which means a visible object, choose your other options,
such a sound etc, that's all you need to do really, the door doesn't
need to be told which way to rotate as it has the origin brush
in there showing it the way. Now go test your door and have a
cup of coco.
You can download the room, hall, door and glass tutorial map pack
here, it includes the .bsp files and the .rmf files N/A