First upload

src/js/soundsystem.js

@@ -0,0 +1,65 @@
+function soundSystem(controller){
+    
+    var _this = this;
+    var _speed=0;
+    var _circles = [];
+    var _circleID = -1;
+    var _measures = [];
+    var _channel_max = 10;// number of channels
+    var _mainMusicChannel=-1;
+    
+	var _audiochannels = new Array();
+	
+	for (var a=0;a<_channel_max;a++) {// prepare the channels
+		_audiochannels[a] = new Array();
+		_audiochannels[a]['channel'] = new Audio();	// create a new audio object
+		_audiochannels[a]['finished'] = -1;	// expected end time for this channel
+	}
+    
+    this.playSound = function(soundID){
+        
+        if(soundID=="main-music" && _mainMusicChannel!=-1 && _mainMusicChannel.currentTime>0 ){//if music was paused but is going to be played
+            _mainMusicChannel.play();
+        }
+        else{
+            
+            for(var i=0;i<_audiochannels.length;i++){
+
+                var thistime = new Date();
+                if (_audiochannels[i]['finished'] < thistime.getTime()) {// is this channel finished?
+                    _audiochannels[i]['finished'] = thistime.getTime() + document.getElementById(soundID).duration*1000;
+                    _audiochannels[i]['channel'].src = document.getElementById(soundID).src;
+                    _audiochannels[i]['channel'].load();
+                    _audiochannels[i]['channel'].play();
+
+                    if(soundID=="main-music" && _mainMusicChannel==-1){
+                        _mainMusicChannel=_audiochannels[i]['channel'];
+                    }
+                    break;
+                }
+
+            }
+        }
+    }
+	
+    this.pauseSound = function(soundID, stop){
+        for (var i=0;i<_audiochannels.length;i++){
+            if(_audiochannels[i]['channel'].src == document.getElementById(soundID).src){
+                _audiochannels[i]['channel'].pause();
+                if(stop) _audiochannels[i]['channel'].currentTime=0;
+            }
+        }
+    }
+
+    this.fadeOutMusic = function(){
+        
+        if(_mainMusicChannel.volume.toFixed(1)!=0.0){
+            _mainMusicChannel.volume-=0.1;
+        }
+        else{
+            _mainMusicChannel.pause();
+            controller.fadeOutOver();
+        }
+    }
+    
+}