From df56545408178512e1ce02ff7fe60d1f4d368a65 Mon Sep 17 00:00:00 2001
From: Recrown <yunyangdeng@gmail.com>
Date: Wed, 10 Jan 2018 01:41:21 -0600
Subject: [PATCH] minor cleanup

---
 .../graphics/ui/components/Visualizer.java    | 23 ++++++++++++-------
 1 file changed, 15 insertions(+), 8 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 ce0a156..fb04aee 100755
--- a/desktop/src/zero1hd/rhythmbullet/desktop/graphics/ui/components/Visualizer.java
+++ b/desktop/src/zero1hd/rhythmbullet/desktop/graphics/ui/components/Visualizer.java
@@ -27,13 +27,15 @@ public class Visualizer extends Widget implements Disposable {
 	private MusicManager mm;
 	private ShortBuffer buffer;
 	private int sourceID;
+	private float visRefreshRate = 1f/60f;
+	private float timer;
 	public Visualizer() {
 		vis = new BasicVisualizer();
 		
 		try {
-			Field tempBufferField = ClassReflection.getDeclaredField(OpenALMusic.class, "tempBuffer");
-			tempBufferField.setAccessible(true);
-			buffer = ((ByteBuffer) tempBufferField.get(null)).asShortBuffer();
+			Field bufferField = ClassReflection.getDeclaredField(OpenALMusic.class, "tempBuffer");
+			bufferField.setAccessible(true);
+			buffer = ((ByteBuffer) bufferField.get(null)).asShortBuffer();
 		} catch (IllegalArgumentException | SecurityException | ReflectionException e) {
 			e.printStackTrace();
 			Gdx.app.debug("Visualizer reflection", "Failed attempt at retrieving tempBuffer field.");
@@ -64,18 +66,23 @@ public class Visualizer extends Widget implements Disposable {
 			vis.setxPos((getWidth() - vis.getActualWidth())/2f);
 		}
 		if (mmSet) {
-			setupPCMData();
+			if (timer >= visRefreshRate) {
+				timer = 0;
+				calcPCMData();
+				vis.calculate(delta);
+			} else {
+				timer += delta;
+			}
 		}
-		vis.calculate(delta);
 		super.act(delta);
 	}
 	
-	public void setupPCMData() {
+	public void calcPCMData() {
 		short chanVal;
 		
-		int pos = (int) ((alGetSourcef(sourceID, AL11.AL_SAMPLE_OFFSET)-4));
+		int pos = (int) ((alGetSourcef(sourceID, AL11.AL_SAMPLE_OFFSET)));
 		try {
-			buffer.position((int) Math.max(0, pos));
+			buffer.position(pos);
 		} catch (IllegalArgumentException outOfBounds) {
 			System.out.println(outOfBounds);
 		}