v1.0.1: fixed graphics stutter when tracks are switched

SPD-classes/src/main/java/com/watabou/noosa/audio/Music.java

@@ -29,6 +29,9 @@ import com.watabou.utils.Random;
 import java.awt.MediaTracker;
 import java.util.ArrayList;
 import java.util.Collections;
+import java.util.HashMap;
+import java.util.LinkedHashMap;
+import java.util.Map;
 
 public enum Music {
 	
@@ -130,7 +133,12 @@ public enum Music {
 				return;
 			}
 
-			stop();
+			//we do this in a separate thread to avoid graphics hitching while the music is prepared
+			//FIXME this fixes graphics stutter but there's still some audio stutter, perhaps keep more than 1 player alive?
+			new Thread(){
+				@Override
+				public void run() {
+					Music.this.stop();
 
 					if (trackQueue.isEmpty()){
 						for (int i = 0; i < trackList.length; i++){
@@ -147,6 +155,8 @@ public enum Music {
 
 					play(trackQueue.remove(0), trackLooper);
 				}
+			}.start();
+		}
 	};
 
 	private synchronized void play(String track, com.badlogic.gdx.audio.Music.OnCompletionListener listener){