/// <summary>
/// update the state machine
/// </summary>
/// <param name="gameTime">the current game time</param>
public void Update(GameTime gameTime)
{
// if there's no current state running, and we've somehow tried to update the state machine, throw an exception
if (currentState == null)
{
throw new NullReferenceException("no start state");
}
// if we havent started yet, start!
if (started == false)
{
currentState.execEnter();
started = true;
}
//System.Diagnostics.Debug.WriteLine("current state: " + currentState.Name);
// update the current state
currentState.execUpdate(gameTime);
}
