Making a door



Making a door is a simple process, but may also be one of the first obstacles a person new to Doom mapping runs into. This should help simplify things a bit.

Say that we had a map similar to that shown on the diagram to the right, with two rooms connected by a hallway. Sector A is a first room, Sector C is the second room, and Sector B will be our door.

Start off by lowering the ceiling height of Sector B to be equal to that of the floor. For example, if your floor height is zero, make the ceiling height zero as well. Make sure to apply upper textures where needed.

Next, select the linedefs facing towards the two rooms (Sector A and C), and give them a Line Type of 1 (DR Door Open Wait Close). Make sure that your door's linedefs are facing outwards towards the two rooms. Otherwise, there's a good chance the door will not function.

You should now have a door that, when being triggered, raises up to the ceiling, waits a few seconds, and lowers back down. But, there is one more thing that you should always do. Select the lindefs on both sides of the door (highlighted in red), and give them the Lower-Unpegged flag. This will prevent the texture from moving up/down as the door is in motion.