public Joint(double mass, int x, int y, Joint parent, double minAngle, double maxAngle, double minDeltaAngle, double maxDeltaAngle) : base(mass)
{
position = new Point(x, y);
this.parent = parent;
}
public Joint(double mass, Point position, Joint parent, double minAngle, double maxAngle, double minDeltaAngle, double maxDeltaAngle) : base(mass)
{
this.position = position;
this.parent = parent;
}