: Originally, Doom only supported one layer of geometry; e.g. you couldn't
: include the tunnels running under the main chamber in Mars Needs Women. It
: also only had horizontal and not vertical collision detection, so you
: couldn't jump from a high ledge and fly over the head of a player below. I
: don't know whether that's still true in ZDoom.
Just took a look at MNW...this map hurts my brain after being in doom and build for so long.
How are things like this defined in marathon maps? I mean, if true bridges are impossible, how is room over room like this possible?