HummingBird OOP

interface Flyable {
  fly: ()=> void
}


class Animal {
  constructor(public name: string) {}
}

class Mamal extends Animal {}

class Bird extends Animal implements Flyable {
  constructor(name: string) {
    super(name);
  }

  fly(): void {
    console.log(`${this.name} the bird is flying`);
  }
}

class Bat extends Mamal implements Flyable {
  constructor(name: string) {
    super(name);
  }

  fly(): void {
    console.log(`${this.name} is flying like bats`);
  }
}

class HummingBirdFactory {
  static createHummingBird(bird: Bird, bat: Bat): HummingBird {
    return new HummingBird(bird.name, bat.fly);
  }
}

class HummingBird {
  name: string;
  fly: () => void;

  constructor(name: string, fly: () => void) {
    this.name = name;
    this.fly = fly;
  }
}

const bird = new Bird('Humming Bird');
const bat = new Bat('Bat');
const hummingBird = HummingBirdFactory.createHummingBird(bird, bat);

hummingBird.fly();