OptionalbOptionalcThe new collision group value of the disc.
OptionalcThe new collision mask value of the disc.
OptionalcolorThe new color of the disc. Range: -1 <= color < 16777216.
Utils.numberToColor function.-1 means transparent color.OptionaldampingThe new damping value of the disc.
OptionalinvThe new 1/mass value of the disc.
OptionalradiusThe new radius of the disc.
OptionalxThe new x coordinate of the disc's position.
OptionalxgravityThe new x component of the disc's gravity(acceleration).
OptionalxspeedThe new x component of the disc's speed.
OptionalyThe new y coordinate of the disc's position.
OptionalygravityThe new y component of the disc's gravity(acceleration).
OptionalyspeedThe new y component of the disc's speed.
The new bouncing coefficient of the disc.