mygame.loading = function() {
  const manager = new THREE.LoadingManager(mygame.create);

  const gltfLoader = new GLTFLoader(manager);
  gltfLoader.load("police.glb", function(gltf) {
    mygame.textures.car = gltf;
  });
  const textureLoader = new THREE.TextureLoader(manager);
  mygame.textures.floor = textureLoader.load("wet_asphalt.jpg");
  mygame.textures.walls = textureLoader.load("wall.jpg");
};