जावास्क्रिप्ट इस मुद्दे को SetInterval के साथ

class Game {
  constructor() {
    this.gameOver = false;
    this.entities = [];
    this.context = document.getElementById("canvas").getContext("2d");
  }
  start() {
    this.entities.push(new Ship(0, 400));
    this.entities.push(new Alien(1, 0));
    this.entities.push(new Alien(20, 0));
    this.entities.push(new Alien(40, 0));
  }
  render() {
    for (let entity of this.entities) {
      if (entity instanceof Alien) {
        renderAliens(entity, this.context);
      } else if (entity instanceof Ship) {
        renderShip(entity, this.context);
      }
    }
  }
  update() {
    for (let entity of this.entities) {
      if (entity instanceof Alien) {
        entity.y += 20;
        renderAliens(entity, this.context);
      }
    }
  }

  endGame() {}
}

const newGame = new Game();
newGame.start();
newGame.render();
let t = setInterval(newGame.update, 1000);