Workaround to allow similar sounds to load as one group on HTML5 (close #883)

lime/utils/AssetLibrary.hx

@@ -1,6 +1,7 @@
 package lime.utils;
 
 
+import haxe.io.Path;
 import lime.app.Event;
 import lime.app.Future;
 import lime.app.Promise;
@@ -41,6 +42,10 @@ class AssetLibrary {
 	private var promise:Promise<AssetLibrary>;
 	private var types = new Map<String, AssetType> ();
 	
+	#if (js && html5)
+	private var pathGroups:Map<String, Array<String>>;
+	#end
+	
 	
 	public function new () {
 		
@@ -471,6 +476,41 @@ class AssetLibrary {
 	
 	public function loadAudioBuffer (id:String):Future<AudioBuffer> {
 		
+		// TODO: Better solution
+		
+		#if (js && html5)
+		if (pathGroups == null) {
+			
+			pathGroups = new Map<String, Array<String>> ();
+			
+			var sounds = new Map<String, Array<String>> ();
+			var type, path, soundName;
+			
+			for (id in types.keys ()) {
+				
+				type = types.get (id);
+				
+				if (type == MUSIC || type == SOUND) {
+					
+					path = paths.get (id);
+					soundName = Path.withoutExtension (path);
+					
+					if (!sounds.exists (soundName)) {
+						
+						sounds.set (soundName, new Array ());
+						
+					}
+					
+					sounds.get (soundName).push (path);
+					pathGroups.set (id, sounds.get (soundName));
+					
+				}
+				
+			}
+			
+		}
+		#end
+		
 		if (cachedAudioBuffers.exists (id)) {
 			
 			return Future.withValue (cachedAudioBuffers.get (id));
@@ -481,7 +521,11 @@ class AssetLibrary {
 			
 		} else {
 			
+			#if (js && html5)
+			return AudioBuffer.loadFromFiles (pathGroups.get (id));
+			#else
 			return AudioBuffer.loadFromFile (paths.get (id));
+			#end
 			
 		}