void OnTriggerEnter(Collider col) { if (motoGenerator != null && col.gameObject.tag == "motorcycle") { motoGenerator.DestroyObject(col.gameObject); } else if (carGenerator != null && col.gameObject.tag == "car") { carGenerator.DestroyObject(col.gameObject); } else if (truckGenerator != null && col.gameObject.tag == "truck") { truckGenerator.DestroyObject(col.gameObject); } }