/// <summary>
/// add listeners to the player death event
/// </summary>
/// <param name="listener"></param>
public void AddPlayerDeathListener(UnityAction listener)
{
playerDeathEvent.AddListener(listener);
}
/// <summary>
/// adds listener to the invoker invoked by this script
/// </summary>
/// <param name="listener"> listener for the event </param>
public void AddPlayerDeathListener(UnityAction <Enumeration.playerState> listener)
{
playerDeathEvent.AddListener(listener);
}