From 4d6cbaa652ad929ab7ab751ee0356090c6efb5bd Mon Sep 17 00:00:00 2001
From: Recrown <yunyangdeng@gmail.com>
Date: Thu, 11 Jan 2018 00:14:57 -0600
Subject: [PATCH] added comments

---
 .../graphics/ui/components/Visualizer.java    | 23 +++++++++++--------
 1 file changed, 14 insertions(+), 9 deletions(-)

diff --git a/desktop/src/zero1hd/rhythmbullet/desktop/graphics/ui/components/Visualizer.java b/desktop/src/zero1hd/rhythmbullet/desktop/graphics/ui/components/Visualizer.java
index 643ae11..780bf58 100755
--- a/desktop/src/zero1hd/rhythmbullet/desktop/graphics/ui/components/Visualizer.java
+++ b/desktop/src/zero1hd/rhythmbullet/desktop/graphics/ui/components/Visualizer.java
@@ -5,7 +5,6 @@ import static org.lwjgl.openal.AL10.*;
 import java.nio.ByteBuffer;
 import java.nio.ShortBuffer;
 
-import org.lwjgl.BufferUtils;
 import org.lwjgl.openal.AL11;
 
 import com.badlogic.gdx.Gdx;
@@ -106,30 +105,36 @@ public class Visualizer extends Widget implements Disposable {
 			}
 			vis.getAudioPCM()[sid] /= Short.MAX_VALUE+1f;
 		}
+		readWindowIndex++;
 		
 		
+		//Take down original buffer position so we don't need to sync again after...
 		int originalPos = buffer.position();
 		
-		
+		//Begin comparison
 		buffer.rewind();
-		compareBuffer.rewind();
 		if (compareBuffer.compareTo(buffer) != 0) {
-			prevBuffer.clear();
-			prevBuffer.put(compareBuffer);
-			System.out.println("Buffer switched: " + prevBuffer.get(5) + "-" + buffer.get(5) + "-" + compareBuffer.get(5));
-		} else {
+			bufferChanged();
 		}
+		
+		//Begin copying current buffer to the comparison buffer
 		compareBuffer.clear();
 		compareBuffer.put(buffer);
 		compareBuffer.flip();
+		
+		//Reset buffer to proper position.
 		buffer.position(originalPos);
-		readWindowIndex++;
+	}
+	
+	private void bufferChanged() {
+		prevBuffer.clear();
+		prevBuffer.put(compareBuffer);
 	}
 	
 	private int updateBufferPosition() {
 		int pos = (int) ((alGetSourcef(sourceID, AL11.AL_SAMPLE_OFFSET))-mm.getReadWindowSize()*mm.getChannelCount());
 		try {
-			readWindowIndex = mm.getPlaybackIndexPosition();
+			readWindowIndex = mm.getPlaybackIndexPosition()-1;
 			buffer.position(pos);
 		} catch (IllegalArgumentException iae) {
 			buffer.position(0);