AKA "Reverse Doom Door". This door lowers into the floor when opened, and rises to the ceiling when closed.
First make your door sector and tag it [0,21]
.
Enter 3D mode. Give your door frame a nice texture (#161).
Press F
on the ceiling and floor to flip the texture and make it look proper.
Place the following sprites in the door sector : M[ClosedSound,MovingSound]
(Sp[0,Speed], S[Delay,10])
. I recommend M[0,166]
.
Point your mouse cursor at the floor of the door sector and press PGUP
until the floor touches the ceiling. Give both sides of your door a nice door texture (use Keypad 2,4,6,8 keys to stretch and squeeze the texture so it fits properly). I chose door tile #242. Now your door will work in the game. Stand in front of it and press the action button (default Spacebar
) to open and close it.