public static async Task <TrafficLightStateFunction> Amber(TrafficLightState state)
{
state.Red = false;
state.Amber = true;
state.Green = false;
Console.WriteLine("AMBER");
await Task.Delay(TimeSpan.FromSeconds(3));
return(Red);
}
public static async Task <TrafficLightStateFunction> Green(TrafficLightState state)
{
state.Red = false;
state.Amber = false;
state.Green = true;
Console.WriteLine("GREEN");
await Task.Delay(TimeSpan.FromSeconds(12));
return(Amber);
}
public static void Main(string[] args)
{
Task.Run(async() =>
{
var state = new TrafficLightState();
TrafficLightStateFunction stateFunction = Red;
while (stateFunction != null)
{
stateFunction = await stateFunction(state);
}
});
Console.ReadKey();
}