public override void LoadFromXElement(XElement root)
{
base.LoadFromXElement(root);
Mass = Convert.ToSingle(root.Element("Mass").Value);
Velocity = new Vector2();
XElement b = root.Element("Velocity");
XElement a = root.Element("Velocity").Element("Vector2");
Velocity = Velocity.loadFromXElement(root.Element("Velocity").Element("Vector2"));
Force = new Vector2();
Force = Force.loadFromXElement(root.Element("Force").Element("Vector2"));
AllowFriction = Convert.ToBoolean(root.Element("AllowFriction").Value);
}