dMZX Forums: Older games may rely on ModObj-era volume reset bug -> MegaZeux Bugs -> Tracker

In ModObj-era MegaZeux releases (1.00g, 1.02, 2.02, 2.07, and likely any others prior to 2.50) the following code results in the mod audio being reset when the new mod plays. It's not clear exactly what the cause of this is, but every MegaZeux release since keeps the existing volume when the new mod plays.

MOD "CV_BALON.MOD"
VOLUME 255
SET "vol" TO 255
: "l"
DEC "vol" BY 5
VOLUME "vol"
WAIT 1
IF "vol" > 0 "l"
END MOD
MOD "CV_TECH.MOD"

Aside from the mod names this is the exact same code that the Catacombs of Zeux ending uses to switch to CT_END2.MOD, and relying on this bug is the reason that mod does not actually audibly play in 2.51 and up.

Unless the 1.x copies of the Zeux registered worlds are found (in which case this could be versioned for 1.x and a 1.x loader could be added) I'm not sure there's a good way to fix this bug.