replacement of es5 functions to es6 class def feat P5.AudioVoice , P5.monosynth , p5.Envelope

src/app.js

@@ -1,6 +1,10 @@
 import 'audioworklet-polyfill';
 import './shims';
-import './audiocontext';
+
+import { getAudioContext, userStartAudio } from './audiocontext';
+p5.prototype.getAudioContext = getAudioContext;
+p5.prototype.userStartAudio = userStartAudio;
+
 import './master';
 import './helpers';
 import './errorHandler';
@@ -19,7 +23,10 @@ import './oscillator';
 import './envelope';
 import './pulse';
 import './noise';
-import './audioin';
+
+import AudioIn from './audioin';
+p5.AudioIn = AudioIn;
+
 import './filter';
 import './eq';
 import './panner3d';
@@ -33,9 +40,12 @@ import './compressor';
 import './soundRecorder';
 import './peakDetect';
 import './gain';
-import './monosynth';
-import './polysynth';
 import './distortion';
-import './audioVoice';
-import './monosynth';
+
+import AudioVoice from './audioVoice';
+p5.AudioVoice = AudioVoice;
+
+import MonoSynth from './monosynth';
+p5.MonoSynth = MonoSynth;
+
 import './polysynth';

src/audioVoice.js

@@ -8,55 +8,47 @@ import p5sound from './master';
  * @class p5.AudioVoice
  * @constructor
  */
-p5.AudioVoice = function () {
-  this.ac = p5sound.audiocontext;
-  this.output = this.ac.createGain();
-  this.connect();
-  p5sound.soundArray.push(this);
-};
-
-p5.AudioVoice.prototype.play = function (
-  note,
-  velocity,
-  secondsFromNow,
-  sustime
-) {};
-
-p5.AudioVoice.prototype.triggerAttack = function (
-  note,
-  velocity,
-  secondsFromNow
-) {};
-
-p5.AudioVoice.prototype.triggerRelease = function (secondsFromNow) {};
-
-p5.AudioVoice.prototype.amp = function (vol, rampTime) {};
+class AudioVoice {
+  constructor() {
+    this.ac = p5sound.audiocontext;
+    this.output = this.ac.createGain();
+    this.connect();
+    p5sound.soundArray.push(this);
+  }
+  play(note, velocity, secondsFromNow, sustime) {}
 
-/**
- * Connect to p5 objects or Web Audio Nodes
- * @method  connect
- * @for p5.AudioVoice
- * @param {Object} unit
- */
-p5.AudioVoice.prototype.connect = function (unit) {
-  var u = unit || p5sound.input;
-  this.output.connect(u.input ? u.input : u);
-};
+  triggerAttack(note, velocity, secondsFromNow) {}
 
-/**
- * Disconnect from soundOut
- * @method  disconnect
- * @for p5.AudioVoice
- */
-p5.AudioVoice.prototype.disconnect = function () {
-  this.output.disconnect();
-};
+  triggerRelease(secondsFromNow) {}
 
-p5.AudioVoice.prototype.dispose = function () {
-  if (this.output) {
+  amp(vol, rampTime) {}
+
+  /**
+   * Connect to p5 objects or Web Audio Nodes
+   * @method  connect
+   * @for p5.AudioVoice
+   * @param {Object} unit
+   */
+  connect(unit) {
+    var u = unit || p5sound.input;
+    this.output.connect(u.input ? u.input : u);
+  }
+
+  /**
+   * Disconnect from soundOut
+   * @method  disconnect
+   * @for p5.AudioVoice
+   */
+  disconnect() {
     this.output.disconnect();
-    delete this.output;
   }
-};
 
-export default p5.AudioVoice;
+  dispose() {
+    if (this.output) {
+      this.output.disconnect();
+      delete this.output;
+    }
+  }
+}
+
+export default AudioVoice;

src/audiocontext.js

@@ -45,9 +45,9 @@ Tone.setContext(audiocontext);
  *
  * </div></code>
  */
-p5.prototype.getAudioContext = function () {
+export function getAudioContext() {
   return audiocontext;
-};
+}
 
 /**
  *  <p>It is not only a good practice to give users control over starting
@@ -102,7 +102,7 @@ p5.prototype.getAudioContext = function () {
  *  }
  *  </code></div>
  */
-p5.prototype.userStartAudio = function (elements, callback) {
+export function userStartAudio(elements, callback) {
   var elt = elements;
   if (elements instanceof p5.Element) {
     elt = elements.elt;
@@ -112,6 +112,6 @@ p5.prototype.userStartAudio = function (elements, callback) {
     });
   }
   return StartAudioContext(audiocontext, elt, callback);
-};
+}
 
 export default audiocontext;