#45 Desync: m203-433.lmp

[Andrey Budko]

http://competn.doom2.net/pub/compet-n/pwads/mm2/speed/m203-433.zip

The reasons of a problem are the sector 75 and the following code in EV_DoPlat():

//jff 1/26/98 Avoid raise plat bouncing a head off a ceiling and then
//going down forever -- default low to plat height when triggered
plat->low = sec->floorheight;

This field is not initialized by vanilla (like "crash" field for stairs) and, hence, has randomly value after AddThinker. Relative to subj it is enough to remove this line, but we cannot guarantee correct behaviour in any similar cases with the current (changed) memory manager.

[Graham Burgess]

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Just bringing what looks like another example to your attention:
http://lsvc.free.fr/CFD/Demos/Cyberdreams/cyb04-uv-009-JC.zip

The wad can be found here:
http://www.doomworld.com/idgames/index.php?id=9277