game-engine/src/index.js

import CanvasWindow from "./canvas-windows";
import ResourceLoader from "./resource-loader";
(async function gameloop() {
  const canvasWindow = new CanvasWindow({
    canvas: document.querySelector("canvas"),
    maxMultiplier: 5,
    windowPercentage: 0.9,
  });
  await canvasWindow.load();
  const { canvas } = canvasWindow;
  const ctx = canvas.getContext("2d");

  const [overworld] = await Promise.all([
    "assets/overworld.png",
  ].map(ResourceLoader.load));

  ctx.drawImage(overworld, 0, 0);
})();