void OnTriggerEnter(Collider col)
 {
     if (col.tag == "Player" && !es.seesPlayer)
     {
         es.PlayerSweep(col.ClosestPoint(transform.position));
     }
     if (col.tag == "Interactible")
     {
         if (col.GetComponent <ObjectStrangeLocation>().needsInvestigation == true)
         {
             aI.MinorActivity(col.transform.position);
             col.GetComponent <ObjectStrangeLocation>().needsInvestigation = false;
         }
     }
 }