public void AddLegs(Legs legs)
 {
     if (this.legs.part == null)
     {
         this.legs.part = legs;
         body.transform.localPosition += new Vector3(0, legs.height, 0);
         legs.gameObject.SetActive(true);
         legs.AddToRobot(this);
     }
     else
     {
         legs.gameObject.SetActive(false);
     }
 }