Homeworld Effects Manual: setSpriteDeltaRot()
setSpriteDeltaRot()(float value)
Legal values: all real numbers
Default value: 0
Determines how fast a sprite spins.
The 'Delta' in this command's name is not where 'Delta' usually goes. Don't get tripped up; setDeltaSpriteRot() will do nothing, not even generate an error or warning. Obviously, this command is only useful for sprites. value is how many radians the sprite turns in one second. Positive values make objects spin counter-clockwise; negative values make them spin clockwise. This command is useful for adding randomization to things like smoke trails and explosions, so the few explosion textures don't look so repetitive.