Merge branch 'master' of github.com:processing/p5.js

Author: Lauren McCarthy

lib/addons/p5.sound.js

@@ -97,7 +97,7 @@ sndcore = function () {
       if (typeof AudioContext.prototype.createDelay !== 'function')
         AudioContext.prototype.createDelay = AudioContext.prototype.createDelayNode;
       if (typeof AudioContext.prototype.createScriptProcessor !== 'function')
-        AudioContext.prototype.createScriptProcessor = AudioContext.prototype.createJavaScriptNode;
+        AudioContext.prototype.createScriptProcessor = AudioContext.prototype.createScriptProcessor;
       if (typeof AudioContext.prototype.createPeriodicWave !== 'function')
         AudioContext.prototype.createPeriodicWave = AudioContext.prototype.createWaveTable;
       AudioContext.prototype.internal_createGain = AudioContext.prototype.createGain;
@@ -9334,4 +9334,4 @@ src_app = function () {
   var p5SOUND = sndcore;
   return p5SOUND;
 }(sndcore, master, helpers, errorHandler, panner, soundfile, amplitude, fft, signal, oscillator, env, pulse, noise, audioin, filter, delay, reverb, metro, looper, soundRecorder, peakdetect, gain, distortion);
-}));
+}));

src/events/keyboard.js

@@ -225,12 +225,16 @@ p5.prototype._onkeydown = function (e) {
  */
 p5.prototype._onkeyup = function (e) {
   var keyReleased = this.keyReleased || window.keyReleased;
-  this._setProperty('isKeyPressed', false);
-  this._setProperty('keyIsPressed', false);
-  this._setProperty('_lastKeyCodeTyped', null);
   downKeys[e.which] = false;
   //delete this._downKeys[e.which];
   var key = String.fromCharCode(e.which);
+
+  if(areDownKeys()) {
+    this._setProperty('isKeyPressed', false);
+    this._setProperty('keyIsPressed', false);
+  }
+
+  this._setProperty('_lastKeyCodeTyped', null);
   if (!key) {
     key = e.which;
   }
@@ -354,4 +358,22 @@ p5.prototype.keyIsDown = function(code) {
   return downKeys[code];
 };
 
+/**
+ * The checkDownKeys function returns a boolean true if any keys pressed
+ * and a false if no keys are currently pressed.
+
+ * Helps avoid instances where a multiple keys are pressed simultaneously and
+ * releasing a single key will then switch the
+ * keyIsPressed property to true.
+ * @private
+**/
+function areDownKeys() {
+  for (var key in downKeys) {
+    if (downKeys[key] === true ) {
+      return true;
+    }
+  }
+  return false;
+}
+
 module.exports = p5;