fix sound turning on/off randomly on first user click due to toggleVolume call

script/engine.js

@@ -240,7 +240,6 @@
 			}
 
 			if(!AudioEngine.isAudioContextRunning()){
-				Engine.toggleVolume();
 				document.addEventListener('click', Engine.resumeAudioContext);
 			}
 			
@@ -250,7 +249,14 @@
 		},
 		resumeAudioContext: function () {
 			AudioEngine.tryResumingAudioContext();
-			Engine.toggleVolume();
+			
+			// turn on music!
+			if (AudioEngine._audioContext.state !== 'suspended') {
+				$('.volume').text(_('sound off.'));
+				$SM.set('config.soundOn', true);
+				AudioEngine.setMasterVolume(1.0);
+			}
+
 			document.removeEventListener('click', Engine.resumeAudioContext);
 		},
 		browserValid: function() {