class Animal {
  color: string;
  numberOfPaws: number;

  constructor(color: string, numberOfPaws: number) {
    this.color = color;
    this.numberOfPaws = numberOfPaws;
  }
}

class Cat extends Animal {
  constructor(color: string, numberOfPaws: number) {
    super(color, numberOfPaws);
  }
}

class Dog extends Animal {
  constructor(color: string, numberOfPaws: number) {
    super(color, numberOfPaws);
  }
}

class Bird extends Animal {
  constructor(color: string, numberOfPaws: number) {
    super(color, numberOfPaws);
  }
}

class Fish extends Animal {}

class Lombric extends Animal {}

function photographAllAnimals(animal: Animal) {
  console.log("Click!");
}

function meow(cat: Cat) {
  console.log("Miaouuuu");
}

function bark(dog: Dog) {
  console.log("Whoaf whoaf!!");
}

function fly(bird: Bird) {
  console.log("I believe I can fly...");
}

function swim(fish: Fish) {
  console.log("Oh yeah I can swim!");
}

function caress(animal: Animal) {
  if (this.numberOfPaws === 4) {
    console.log("You can caress it");
  } else {
    console.log("Sorry you can't");
  }

  function feed(animal: Animal) {
    if (this.color === "black") {
      console.log("Miam!");
    } else {
      console.log("Sorry but you can't feed it");
    }
  }
}