// Fake for server.
class FakeProton {

  addEmitter() {}

  update() {}

}
FakeProton.BaseRender = class {};
FakeProton.Emitter = class {};
const Proton_ = 'undefined' !== typeof window ? require('three.proton.js/build/three.proton') : FakeProton;

export class Proton extends Proton_ {

  tick(elapsed) {
    this.update(elapsed);
  }

}