void OnCollisionEnter(Collision collision)
 {
     if (!_owner)
     {
         return;
     }
     CheckEffectTouch(collision);
     CheckSingleTouch(collision);
     _currentMaterialDepth = collision.gameObject.GetComponent <HapticMaterialDepth>();
     CheckDepthTouch(collision);
 }
 void OnCollisionExit(Collision collision)
 {
     _actuator.Value       = 0;
     _currentMaterialDepth = null;
 }