static void Main(string[] args)
{
// Try fix the robot example. Client does not need to know about receiver.
// Basiicall the idea is that we are passing the receiver to the command and then passing the command to the
// invoker which will then invoke the command on the relevant receiver.
// So the invoker has the power of turing the light on.
#region Robot
var robot = new RobotObject();
var controller = new RobotController();
// Setting up the commands
var move = new MoveCommand(robot);
move.ForwardDistance = 1000;
controller.Commands.Enqueue(move);
var rotate = new RotateLeftCommand(robot);
rotate.LeftRotationAngle = 45;
controller.Commands.Enqueue(rotate);
var scoop = new TakeSampleCommand(robot);
scoop.TakeSample = true;
controller.Commands.Enqueue(scoop);
// Executing the commands
controller.ExecuteCommands();
controller.UndoCommands(3);
#endregion
#region Calculator
// Create user and let her compute
User user = new User();
// User presses calculator buttons
user.Compute('+', 100);
user.Compute('-', 50);
user.Compute('*', 10);
user.Compute('/', 2);
// Undo 4 commands
user.Undo(4);
// Redo 3 commands
user.Redo(3);
#endregion
#region Fast Food
Patron patron = new Patron();
patron.SetCommand(1 /*Add*/);
patron.SetMenuItem(new MenuItem("French Fries", 2, 1.99));
patron.ExecuteCommand();
patron.SetCommand(1 /*Add*/);
patron.SetMenuItem(new MenuItem("Hamburger", 2, 2.59));
patron.ExecuteCommand();
patron.SetCommand(1 /*Add*/);
patron.SetMenuItem(new MenuItem("Drink", 2, 1.19));
patron.ExecuteCommand();
patron.ShowCurrentOrder();
//Remove the french fries
patron.SetCommand(3 /*Remove*/);
patron.SetMenuItem(new MenuItem("French Fries", 2, 1.99));
patron.ExecuteCommand();
patron.ShowCurrentOrder();
//Now we want 4 hamburgers rather than 2
patron.SetCommand(2 /*Edit*/);
patron.SetMenuItem(new MenuItem("Hamburger", 4, 2.59));
patron.ExecuteCommand();
patron.ShowCurrentOrder();
Console.ReadKey();
#endregion
}
