Strategy pattern

interface QuackBehavior {
  quack(): void;
}

interface FlyBehavior {
  fly(): void;
}

class Quack implements QuackBehavior {
  quack(): void {
    console.log("quack-quack");
  }
}

class muteQuack implements QuackBehavior {
  quack(): void {
    console.log("...");
  }
}

class FakeQuack implements QuackBehavior {
  quack(): void {
    console.log("quack like a fake");
  }
}

class FlyWithWings implements FlyBehavior {
  fly(): void {
    console.log("shoo-shoo fly");
  }
}

class FlyRocketPowered implements FlyBehavior {
  fly(): void {
    console.log("Im fly to the moon, like a rocket!");
  }
}

class FlyNoWay implements FlyBehavior {
  fly(): void {
    console.log("sry, but i can't fly");
  }
}

abstract class HuntingLures implements QuackBehavior {
  quackBehavior: QuackBehavior;

  performQuack() {
    this.quackBehavior.quack();
  }
}

class DuckQuacker extends HuntingLures {
  quackBehavior = new FakeQuack();
}

abstract class Duck implements QuackBehavior, FlyBehavior {
  quackBehavior: QuackBehavior;
  flyBehavior: FlyBehavior;

  setFlyBehavior(fb: FlyBehavior) {
    this.flyBehavior = fb;
  }

  setQuackBehavior(qb: QuackBehavior) {
    this.quackBehavior = qb;
  }

  display(): void {
    console.log("duck was displayed");
  }

  performQuack() {
    this.quackBehavior.quack();
  }

  performFly() {
    this.flyBehavior.fly();
  }
}

class MollardDuck extends Duck {
  quackBehavior = new Quack();
  flyBehavior = new FlyWithWings();
}

class WoodenDuck extends Duck {
  quackBehavior = new muteQuack();
  flyBehavior = new FlyNoWay();
}

class ModelDuck extends Duck {
  flyBehavior = new FlyNoWay();
  quackBehavior = new Quack();
}

const duffy: Duck = new MollardDuck();
const woodenDuck: Duck = new WoodenDuck();
const model: Duck = new ModelDuck();
const duckDecoy: HuntingLures = new DuckQuacker();

console.log("mollard duck perfomance:");
duffy.display();
duffy.performQuack();
duffy.performFly();
console.log("wooden duck now:");
woodenDuck.performQuack();
woodenDuck.performFly();
console.log("Now is model duck perfomance:");
model.performFly();
model.setFlyBehavior(new FlyRocketPowered());
model.performFly();
duckDecoy.performQuack();