calculating boom's conveyor belt speed

[maggot202]

Hello
I'm making a wad for the 1994 tune-up challenge (boom format), and i thought to use a voodoo script to teleport some enemies, maybe some ammo between rounds and finally opening a door. This is all well, but i don't know how to calculate the speed of the scrolling floor. In the boomref.txt file, it says that action #253 (scroll floor, move things) speed is "1 unit per frame for each 32 units of linedef trigger length.". What does it mean "per frame"? as in frames per second? if so, doesn't that depends on the computer the player has?

Please, if anyone knows a way to calculate the speed of conveyor belts, tell me, it could be the difference between a hell of a random fight and a plain old deterministic fight. The millions that will play the 1994 tune-up will thank you! (and me, of course)

[andrewj]

maggot202 said:

What does it mean "per frame"? as in frames per second? if so, doesn't that depends on the computer the player has?

It means a frame of Doom physics, which is fixed at 35 frames per second.

Things won't move at a constant speed though, they will accelerate from stationary up to a certain speed. The longer the tagged linedef, the faster they will accelerate and have a higher final speed. You will just need to experiment with different lengths.

[maggot202]

Oh, so these "frames" are like the "tics" of zdoom.
Thank you!