/**
 * Copyright 2017 Google Inc.
 * https://developers.google.com/blockly/
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 const MusicMaker = {
  queue_: [],
  player_: new Audio(),
  queueSound: function(soundUrl) {
    this.queue_.push(soundUrl);
  },
  play: function() {
    let next = this.queue_.shift();
    if (next) {
      this.player_.src = next;
      this.player_.play();
    }
  },
};

MusicMaker.player_.addEventListener(
    'ended', MusicMaker.play.bind(MusicMaker));