Add functions for controlling audio (play/pause/stop)

src/extras/audio/Audio.js

@@ -17,12 +17,15 @@ THREE.Audio = function ( listener ) {
 	this.panner = this.context.createPanner();
 	this.panner.connect( this.gain );
 
+	this.startTime = 0;
+	this.isPlaying = false;
+
 };
 
 THREE.Audio.prototype = Object.create( THREE.Object3D.prototype );
 THREE.Audio.prototype.constructor = THREE.Audio;
 
-THREE.Audio.prototype.load = function ( file ) {
+THREE.Audio.prototype.load = function ( file, playImmediately ) {
 
 	var scope = this;
 
@@ -34,8 +37,8 @@ THREE.Audio.prototype.load = function ( file ) {
 		scope.context.decodeAudioData( this.response, function ( buffer ) {
 
 			scope.source.buffer = buffer;
-			scope.source.connect( scope.panner );
-			scope.source.start( 0 );
+
+			if( playImmediately !== false ) scope.play();
 
 		} );
 
@@ -46,6 +49,47 @@ THREE.Audio.prototype.load = function ( file ) {
 
 };
 
+THREE.Audio.prototype.play = function () {
+
+	if ( ! this.isPlaying ) {
+
+		var source = this.context.createBufferSource();
+
+		source.buffer = this.source.buffer;
+		source.loop = this.source.loop;
+		source.connect( this.panner );
+		source.start( 0, this.startTime );
+
+		this.isPlaying = true;
+
+		this.source = source;
+
+	}
+
+	else {
+
+		console.warn("Audio is already playing.")
+
+	}
+
+};
+
+THREE.Audio.prototype.pause = function () {
+
+	this.source.stop();
+	this.startTime = this.context.currentTime;
+	this.isPlaying = false;
+
+};
+
+THREE.Audio.prototype.stop = function () {
+
+	this.source.stop();
+	this.startTime = 0;
+	this.isPlaying = false;
+
+};
+
 THREE.Audio.prototype.setLoop = function ( value ) {
 
 	this.source.loop = value;