public void OnTriggerEnter(Collider other)
{
PowerControl powerControl = other.gameObject.GetComponent <PowerControl>();
if (powerControl != null)
{
powerControl.AddPower(powerup);
if (TankPowerSound != null)
{
AudioSource.PlayClipAtPoint(TankPowerSound, tf.position, 1.0f);
}
Destroy(this.gameObject);
}
}