private static void ReceiveInput(BigRedButton redButton, BigBlueButton blueButton)
{
string input = string.Empty;
while (input != "quit" && input != "q")
{
input = Console.ReadLine();
if (input == "push red")
{
redButton.Push();
}
else if (input == "push blue")
{
blueButton.Push();
}
else
{
TypeIntructions();
}
}
}
static void Main(string[] args)
{
BigMassiveRocket rocket = new BigMassiveRocket();
BigRedButton redButton = new BigRedButton();
BigBlueButton blueButton = new BigBlueButton();
// Here we can subscribe to the OnButtonPush event from outside of the class, because the event is public.
// HOWEVER we do not have permissions to call redButton.OnButtonPush() to invoke all subscribers.
// The ability to invoke like this is nicely hidden away within the class.
redButton.OnButtonPush += rocket.Launch;
// Here we have had to use a RegisterHandler method to separate the private delegate away from anything outside of the class.
// If we had made blueButton.onButtonPush public, then we would be able to invoke it with blueButton.OnButtonPush().
// This is the main difference between events and delegates. Events provide a nice clean way of hiding the ability to invoke
// from anything outside of the "publisher" class. This is similar to the way that properties differ from fields.
blueButton.RegisterHandler(rocket.Launch);
Console.WriteLine("You are in a dark room. There is a big red button and a big blue button.");
TypeIntructions();
ReceiveInput(redButton, blueButton);
}