Linedef Special Tags
These linedefs types start scripts, and the script they start is determined by their tag number (see Basic Script Implementation.) Notation: W means walk, S means switch, G means shoot, R means repeatable, and 1 means once only.
Walk-Over Triggers
270 -- WR script trigger
271 -- WR script trigger; one-directional
272 -- W1 script trigger
273 -- W1 script trigger; one-directional
Switch Triggers
274 -- SR script trigger
275 -- S1 script trigger
Shoot-Switch Triggers
276 -- GR script trigger
277 -- G1 script trigger