From ZDoom Wiki
A_SetMass (int mass)
Changes the calling actor's mass to mass. It can be used with the mass DECORATE variable to modify the actor's current mass.
|Note: This article lists no examples. If you make use of this feature in your own project(s) or know of any basic examples that could be shared, please. This will make it easier to understand for future authors seeking assistance. Your contibutions are greatly appreciated.|