/// <summary>
/// OnCollisionCommander method takes as input a commander
/// and checks if the commander has been shot once or twice. If
/// once, then then change the image of the commander. If twice,
/// then eliminate the commander from canvas
/// </summary>
/// <param name="commander">Commander object</param>
public void OnCollisionCommander(Commander commander)
{
if (commander.getIsShot() == true)
{
destroy(commander);
}
if (commander.getIsShot() == false)
{
commander.setIsShot(true);
commander.changeImage();
}
}
