Fix issues with queue not playing.

src/main/java/moe/nekojimi/chords/Main.java

@@ -295,6 +295,7 @@ public class Main extends ListenerAdapter
         // Get an audio manager for this guild, this will be created upon first use for each guild
         AudioManager audioManager = guild.getAudioManager();
         musicHandler = new MusicHandler();
+        queueManager.setHandler(musicHandler);
         // Create our Send/Receive handler for the audio connection
 //        EchoHandler handler = new EchoHandler();
 

src/main/java/moe/nekojimi/chords/MusicHandler.java

@@ -25,7 +25,7 @@ public class MusicHandler implements AudioSendHandler, Closeable
 //    private final LinkedList<Song> songQueue = new LinkedList<>();
 //    private final Queue<byte[]> queue = new ConcurrentLinkedQueue<>();
     private final CircularByteBuffer audioBuffer = new CircularByteBuffer(3840 * 1024);
-        private boolean playing = true;
+    private boolean shouldPlay = true;
     private int byteCount;
 
     private boolean arrayErr = false;
@@ -121,14 +121,19 @@ public class MusicHandler implements AudioSendHandler, Closeable
 
     public boolean isPlaying()
     {
-        return playing;
+        return player != null;
     }
 
-    public void setPlaying(boolean playing)
+    public boolean isShouldPlay()
     {
-        if (!this.playing && playing)
+        return shouldPlay;
+    }
+
+    public void setShouldPlay(boolean shouldPlay)
+    {
+        if (!this.shouldPlay && shouldPlay)
             nextSong();
-        this.playing = playing;
+        this.shouldPlay = shouldPlay;
     }
 
     @Override
@@ -136,7 +141,7 @@ public class MusicHandler implements AudioSendHandler, Closeable
     {
         return player != null && player.has(1);
         // If we have something in our buffer we can provide it to the send system
-//        return audioBuffer.getCurrentNumberOfBytes() > byteCount && playing;
+//        return audioBuffer.getCurrentNumberOfBytes() > byteCount && shouldPlay;
     }
 
     @Override

src/main/java/moe/nekojimi/chords/QueueManager.java

@@ -42,7 +42,8 @@ public class QueueManager implements Consumer<Song>
     {
         jukeboxQueue.add(t);
 
-        handler.playNext();
+        if (!handler.isPlaying())
+            handler.playNext();
     }
 
     /**