/// <summary>
/// Fire an event on the current state to raise a state transition.
/// </summary>
/// <param name="e">Event to fire.</param>
public void BroadcastEvent(IMachineEvent e)
{
CurrentState.Data = Data;
var s = CurrentState.ReceiveEvent(e);
if (s != null)
{
CurrentState = s;
}
}
/// <summary>
/// Handle an event.
/// </summary>
/// <param name="e">Event to handle.</param>
/// <returns>Returns the new state of the machine.</returns>
public IState <D> ReceiveEvent(IMachineEvent e)
{
var transition = Transitions.FirstOrDefault(t => t.Event.Equals(e) && (t.Guard?.Invoke(Data, e) ?? true));
if (transition == null)
{
return(null);
}
transition.Data = Data;
transition.Action?.Invoke(Data, e);
return(transition.To);
}