public static TrafficLightState GetLightState <TLightState>() where TLightState : TrafficLightState
{
Type type = typeof(TLightState);
if (!_lightStates.ContainsKey(type))
{
lock (_locker)
{
if (!_lightStates.ContainsKey(type))
{
TrafficLightState typeface = Activator.CreateInstance(typeof(TLightState)) as TrafficLightState;
_lightStates.Add(type, typeface);
}
}
}
return(_lightStates[type]);
}
public void SetState(TrafficLightState state)
{
_currentState = state;
}
public TrafficLight()
{
_currentState = new RedState();
}
