Adds jsDoc for AudioModule #358

Author: hirako2000

src/modules/extra/AudioModule.js

@@ -4,6 +4,23 @@ import {
   AudioLoader
 } from 'three';
 
+/**
+ * @class PositionalAudioModule
+ * @category modules/extra
+ * @param {Object} [params={loop: true}] - The parameters object.
+ * @memberof module:modules/extra
+ * @example <caption>How to create and apply a PositionalAudioModule</caption>
+ * const fogModule = const audioModule = new AudioModule({
+ *   loop: true
+ * });
+ *
+ * new Sphere({
+ *   ...,
+ *   modules: [
+ *     audioModule
+*    ]
+ * };
+ */
 export default class PositionalAudioModule {
   constructor(params = {}) {
     this.params = Object.assign({
@@ -17,10 +34,22 @@ export default class PositionalAudioModule {
     this.positionalAudio.setLoop(this.params.loop);
   }
 
+  /**
+   * @method addListener
+   * @description Adds the listener of this audio source, usually the camera, origin of the user perspective
+   * @param {Object} object The listener object
+   * @memberof module:modules/extra.PositionalAudioModule
+   */
   addListener(object) {
     object.native.add(this.audioListener);
-  };
+  }
 
+  /**
+   * @method play
+   * @description Plays the given sound
+   * @param {String} path The path to the sound file
+   * @memberof module:modules/extra.PositionalAudioModule
+   */
   play(path) {
     const sound = this.positionalAudio;
 
@@ -29,7 +58,7 @@ export default class PositionalAudioModule {
       sound.setRefDistance(50);
       sound.play();
     });
-  };
+  }
 
   bridge = {
     mesh(mesh, self) {