void Start()
 {
     gun = GameObject.Find("manager").GetComponent<gunactive>();
     drill = GameObject.Find("manager").GetComponent<drillactive>();
     rocket = GameObject.Find("manager").GetComponent<rocketactive>();
     pick = GameObject.Find("manager").GetComponent<pickactive>();
 }
 void Start()
 {
     gun = GameObject.Find("manager").GetComponent<gunactive>();
     drill = GameObject.Find("manager").GetComponent<drillactive>();
 }