Class Loader

Pre-loading assets

The loader provides a mechanism to preload multiple resources at one time. The loader must be passed to the engine in order to trigger the loading progress bar.

The Loader itself implements Loadable so you can load loaders.

// create a loader
var loader = new ex.Loader();

// create a resource dictionary (best practice is to keep a separate file)
var resources = {
  TextureGround: new ex.Texture("/images/textures/ground.png"),
  SoundDeath: new ex.Sound("/sound/death.wav", "/sound/death.mp3")
};

// loop through dictionary and add to loader
for (var loadable in resources) {
  if (resources.hasOwnProperty(loadable)) {
    loader.addResource(resources[loadable]);
  }
}

// start game
game.start(loader).then(function () {
  console.log("Game started!");
});

The loader can be customized to show different, text, logo, background color, and button.

const loader = new ex.Loader([playerTexture]);

// The loaders button text can simply modified using this
loader.playButtonText = 'Start the best game ever';

// The logo can be changed by inserting a base64 image string here

loader.logo = 'data:image/png;base64,iVBORw...';
loader.logoWidth = 15;
loader.logoHeight = 14;

// The background color can be changed like so by supplying a valid CSS color string

loader.backgroundColor = 'red'
loader.backgroundColor = '#176BAA'

// To build a completely new button
loader.startButtonFactory = () => {
    let myButton = document.createElement('button');
    myButton.textContent = 'The best button';
    return myButton;
};

engine.start(loader).then(() => {});