////  playSoundLoop.js//  examples////  Created by David Rowe on 5/29/14.//  Copyright 2014 High Fidelity, Inc.////  This example script plays a sound in a continuous loop, and creates a red sphere in front of you at the origin of the sound.////  Distributed under the Apache License, Version 2.0.//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html//  //  A few sample files you may want to try:  var sound = SoundCache.getSound(Script.getExternalPath(Script.ExternalPaths.Assets, "sounds/Guitars/Guitar+-+Nylon+A.raw"));//var sound = SoundCache.getSound(Script.getExternalPath(Script.ExternalPaths.Assets, "sounds/220Sine.wav"));//var sound = SoundCache.getSound(Script.getExternalPath(Script.ExternalPaths.Assets, "sounds/Cocktail+Party+Snippets/Bandcamp.wav")); var soundPlaying = false;var options = {  position: Vec3.sum(Camera.getPosition(), Quat.getFront(MyAvatar.orientation)),  volume: 0.5,  loop: true} var playing = false;var ball = false; function maybePlaySound(deltaTime) {    if (sound.downloaded && !soundPlaying) {        var properties = {                type: "Sphere",                position: options.position,                  dimensions: { x: 0.2, y: 0.2, z: 0.2 },                color: { red: 200, green: 0, blue: 0 }                };        ball = Entities.addEntity(properties);        soundPlaying = Audio.playSound(sound, options);        print("Started sound looping.");        Script.update.disconnect(maybePlaySound);    }}        function scriptEnding() {  if (ball) {    Entities.deleteEntity(ball);  }} // Connect a call back that happens every frameScript.scriptEnding.connect(scriptEnding);Script.update.connect(maybePlaySound);