public void OnCollide(SCollisionInfo collInfo)
 {
     if (collInfo.otherObj.tag == "Bug")
     {
         FlyAI fly = collInfo.otherObj.GetComponent <FlyAI> ();
         if (fly != null)
         {
             fly.DropFly();
         }
         Destroy(this.gameObject);
     }
 }
 void Awake()
 {
     fAI = gameObject.GetComponentInParent<FlyAI> ();
 }