Added wrapper around AppGameContainer to catch critical errors.

Critical game errors (detected in Game.updateAndRender()) are now passed through ErrorHandler.  Note that the actual exception is not displayed in the ErrorHandler window, only the log.

Signed-off-by: Jeffrey Han <itdelatrisu@gmail.com>

src/itdelatrisu/opsu/audio/MusicController.java

@@ -82,24 +82,11 @@ public class MusicController {
 	/**
 	 * Plays an audio file at the preview position.
 	 */
-	@SuppressWarnings("deprecation")
 	public static void play(final OsuFile osu, final boolean loop) {
 		boolean play = (lastOsu == null || !osu.audioFilename.equals(lastOsu.audioFilename));
 		lastOsu = osu;
 		if (play) {
-			themePlaying = false;
-
-			// TODO: properly interrupt instead of using deprecated Thread.stop();
-			// interrupt the conversion/track loading
-			if (isTrackLoading())
-//				trackLoader.interrupt();
-				trackLoader.stop();
-
-			if (wavFile != null)
-				wavFile.delete();
-
-			// releases all sources from previous tracks
-			destroyOpenAL();
+			reset();
 			System.gc();
 
 			switch (OsuParser.getExtension(osu.audioFilename.getName())) {
@@ -152,8 +139,6 @@ public class MusicController {
 				player.loop();
 			else
 				player.play();
-			pauseTime = 0f;
-			trackDimmed = false;
 		}
 	}
 
@@ -322,6 +307,38 @@ public class MusicController {
 		trackDimmed = !trackDimmed;
 	}
 
+	/**
+	 * Completely resets MusicController state.
+	 * <p>
+	 * Stops the current track, cancels track conversions, erases
+	 * temporary files, releases OpenAL sources, and resets state.
+	 */
+	@SuppressWarnings("deprecation")
+	public static void reset() {
+		stop();
+
+		// TODO: properly interrupt instead of using deprecated Thread.stop();
+		// interrupt the conversion/track loading
+		if (isTrackLoading())
+//			trackLoader.interrupt();
+			trackLoader.stop();
+		trackLoader = null;
+
+		// delete temporary WAV file
+		if (wavFile != null) {
+			wavFile.delete();
+			wavFile = null;
+		}
+
+		// reset state
+		themePlaying = false;
+		pauseTime = 0f;
+		trackDimmed = false;
+
+		// releases all sources from previous tracks
+		destroyOpenAL();
+	}
+
 	/**
 	 * Stops and releases all sources, clears each of the specified Audio
 	 * buffers, destroys the OpenAL context, and resets SoundStore for future use.