The color of this Joint. Range: -1 <= color < 16777216.
Utils.numberToColor function.-1 means transparent color.Index of the first Disc of this Joint.
Index of the second Disc of this Joint.
The maximum length of this Joint.
The minimum length of this Joint.
The strength of this Joint. (Infinity means rigid.)
The texture id of this Joint. -1 = empty.
A class that defines a joint.