/// <summary>
 /// Notifies the spawn volume parent upon collision
 /// which collider was hit and whether it should be disabled.
 /// </summary>
 void OnTriggerEnter(Collider other)
 {
     if (other.gameObject.CompareTag("SpawnSignal"))
     {
         spawnVolume.UpdateSpawnVolume(center, false);
     }
     if (other.gameObject.CompareTag("Player"))
     {
         spawnVolume.UpdateSpawnVolume(center, true);
     }
 }