public static void DuckStrategyPatternExample()
{
List <Duck> duckList = new List <Duck>();
//Mountain duck with simple Quack Method
LoudRiverDuck river_duck = new LoudRiverDuck(
new TerminalDisplay(),
new SimpleQuack(),
new SimpleFly());
//Mountain duck with different Quack Method
MountainDuck mountainDuck = new MountainDuck(
new TerminalDisplay(),
new LoudQuack(),
new SimpleFly());
duckList.Add(river_duck);
duckList.Add(mountainDuck);
foreach (var duck in duckList)
{
duck.Display();
duck.Quack();
duck.Fly();
Console.WriteLine();
}
}
static void Main(string[] args)
{
CityDuck cityDuck = new CityDuck();
cityDuck.PerformDisplay();
cityDuck.PerformFly();
cityDuck.PerformQuack();
MountainDuck mountaintDuck = new MountainDuck();
mountaintDuck.PerformDisplay();
mountaintDuck.PerformFly();
mountaintDuck.PerformQuack();
}
public static void Main(string[] args)
{
// First approach (DI and base class of type duck)
Console.WriteLine("First approach using base class");
Console.WriteLine("WildDuck using base class");
var wildDuck = new WildDuck();
wildDuck.Fly();
wildDuck.Quack();
Console.WriteLine("");
Console.WriteLine("MountainDuck using base class");
var mountainDuck = new MountainDuck();
mountainDuck.Fly();
mountainDuck.Quack();
Console.WriteLine("");
Console.WriteLine("RubberDuck using base class");
var RubberDuck = new RubberDuck();
RubberDuck.Fly();
RubberDuck.Quack();
Console.WriteLine("");
//
// Better approach
Console.WriteLine("Better approach using interfaces");
//
// Create fly behaviours
IFlyable flyingNormal = new FlyingNormal();
IFlyable flyingHigh = new FlyingHigh();
IFlyable wontFly = new WontFly();
// Create quack behaviours
IQuackable quackingLoud = new QuackingLoud();
IQuackable squeek = new Squeak();
// Create wildDuck (flying normal, quacking loud)
Console.WriteLine("WildDuck-Interface (flying normal, quacking loud");
var betterWildDuck = new BetterDuckClass(flyingNormal, quackingLoud);
betterWildDuck.Fly();
betterWildDuck.Quack();
Console.WriteLine("");
// Create mountainDuck (flying high, quacking loud)
Console.WriteLine("MountainDuck-Interface (flying high, quacking loud");
var betterMountainDuck = new BetterDuckClass(flyingHigh, quackingLoud);
betterMountainDuck.Fly();
betterMountainDuck.Quack();
Console.WriteLine("");
// Create rubberDuck (won't fly, squeeks)
Console.WriteLine("RubberDuck-Interface (won't fly, squeeks");
var betterRubberDuck = new BetterDuckClass(null, squeek);
betterRubberDuck.Quack();
Console.WriteLine("");
}
