main menu particles fine tuning with visual debug

core/src/zero1hd/rhythmbullet/audio/visualizer/DoubleHorizontalVisualizer.java

@@ -22,16 +22,18 @@ public class DoubleHorizontalVisualizer implements Disposable {
 	private float offset;
 	private int boundaryThickness;
 	private boolean significantBeat;
-	private float maxAverageAmplitude;
+	private float dynamicAverageAmplitude;
 	private byte significantFrames;
 	private float targetDelta;
+	private float significantThreshold = 0.5f;
 	private float spacePercentage = 0.7f;
 	private float baseSensitivity = 0.009f;
 	private int barCount = 120;
 	private float barChangeRate = 6.5f;
 	private int smoothRange = 2;
 	private int binsToInclude = 120;
-	private Color colorBegin = new Color(0.5f, 0.6f, 0.8f, 0.46f);
+	private Color color = new Color(0.5f, 0.6f, 0.8f, 0.46f);
+	private int averageAmplitude;
 
 	/**
 	 * 
@@ -58,11 +60,11 @@ public class DoubleHorizontalVisualizer implements Disposable {
 	
 	public void act(float delta) {
 		if (pcm.hasAudioChanged()) {
-			maxAverageAmplitude = 0;
+			dynamicAverageAmplitude = 0;
 			significantBeat = false;
 		}
 		float[] freqBins = pcm.getFrequencyBins();
-		float averageAmplitude = 0;
+		averageAmplitude = 0;
 		for (int bar = 0; bar < amplitudes.length; bar++) {
 			amplitudes[bar] = 0;
 			for (int freq = bar*binsPerBar; freq < (bar*binsPerBar) + binsPerBar; freq++) {
@@ -74,21 +76,24 @@ public class DoubleHorizontalVisualizer implements Disposable {
 		}
 		
 		averageAmplitude /= amplitudes.length;
-		if (averageAmplitude > maxAverageAmplitude*0.5f && !significantBeat) {
-			if (maxAverageAmplitude != 0) {
+		if (averageAmplitude < dynamicAverageAmplitude) {
+			dynamicAverageAmplitude -= 0.01f;
+		} else {
+			dynamicAverageAmplitude = averageAmplitude;
+		}
+		if (averageAmplitude > dynamicAverageAmplitude*significantThreshold && !significantBeat) {
+			if (dynamicAverageAmplitude > 0) {
 				significantFrames++;
 				if (significantFrames >= 16) {
 					significantFrames = 0;
 					significantBeat = true;
 				}
 			}
-			
-			if (averageAmplitude > maxAverageAmplitude) {
-				maxAverageAmplitude = averageAmplitude;
-			}
 		} else {
 			significantBeat = false;
+			significantFrames = 0;
 		}
+		
 		for (int bar = 0; bar < barHeights.length; bar++) {
 			int smoothCount = 1;
 			for (int range = 0; range < smoothRange; range++) {
@@ -136,10 +141,20 @@ public class DoubleHorizontalVisualizer implements Disposable {
 		}
 		
 		for (int bar = 0; bar < barCount; bar++) {
-			shapeRenderer.setColor(colorBegin);
+			shapeRenderer.setColor(color);
 			shapeRenderer.rect(offset + (spaceBetweenBars+barWidth)*bar, y+height, barWidth, barHeights[bar]);
 			shapeRenderer.rect(offset + (spaceBetweenBars+barWidth)*bar, y, barWidth, -barHeights[barHeights.length - 1 - bar]);
 		}
+		shapeRenderer.setColor(Color.RED);
+		shapeRenderer.rect(0, dynamicAverageAmplitude+y, width, 1);
+		if (significantBeat) {
+			shapeRenderer.setColor(Color.GREEN);
+		} else {
+			shapeRenderer.setColor(Color.WHITE);
+		}
+		shapeRenderer.rect(0, averageAmplitude+y, width, 1);
+		shapeRenderer.setColor(Color.YELLOW);
+		shapeRenderer.rect(0, dynamicAverageAmplitude*significantThreshold + y, width, 1);
 		shapeRenderer.end();
 		Gdx.gl.glDisable(GL20.GL_BLEND);
 		batch.begin();

desktop/src/zero1hd/rhythmbullet/desktop/audio/PCMObtainer.java

@@ -63,24 +63,26 @@ public class PCMObtainer implements Observer, PCMSystem {
 		df.setRoundingMode(RoundingMode.HALF_EVEN);
 	}
 
-	private synchronized boolean calcPCMData() {
-		boolean empty = true;
-		short chanVal;
-		for (int sid = 0; sid < PCM.length && sid < playingBuffer.remaining(); sid++) {
-			PCM[sid] = 0;
-			for (int channel = 0; channel < channelCount; channel++) {
-				if (PCM[sid] < (chanVal = playingBuffer.get())) {
-					PCM[sid] = chanVal;
+	private boolean calcPCMData() {
+		synchronized (PCM) {
+			boolean empty = true;
+			short chanVal;
+			for (int sid = 0; sid < PCM.length && sid < playingBuffer.remaining(); sid++) {
+				PCM[sid] = 0;
+				for (int channel = 0; channel < channelCount; channel++) {
+					if (PCM[sid] < (chanVal = playingBuffer.get())) {
+						PCM[sid] = chanVal;
+					}
 				}
+				PCM[sid] /= Short.MAX_VALUE + 1f;
+				
+				if (PCM[sid] != 0) {
+					empty = false;
+				}
+				
 			}
-			PCM[sid] /= Short.MAX_VALUE + 1f;
-			
-			if (PCM[sid] != 0) {
-				empty = false;
-			}
-			
+			return empty;
 		}
-		return empty;
 	}
 	
 	private void checkValidityOfPlaybackBuffer() {
@@ -138,7 +140,8 @@ public class PCMObtainer implements Observer, PCMSystem {
 	public float[] getFrequencyBins() {
 		if (mc.isPlaying()) {
 			if (updated) {
-				synchronized (this) {
+				synchronized (PCM) {
+					fft.realForward(PCM);
 					System.arraycopy(PCM, 1, frequencyBins, 0, frequencyBins.length);
 				}
 				updated = false;
@@ -174,9 +177,6 @@ public class PCMObtainer implements Observer, PCMSystem {
 					//calculate current pcm data and notify that there is new data
 					checkValidityOfPlaybackBuffer();
 					updated = !calcPCMData();
-					if (updated) {
-						fft.realForward(PCM);
-					}
 					windowsRead++;
 					
 					//contemplate synchronization

desktop/src/zero1hd/rhythmbullet/desktop/screens/main/MusicSelectionPage.java

@@ -286,7 +286,7 @@ public class MusicSelectionPage extends Page implements Observer {
 					if (!selectable.isOffScreen()) {
 						selectable.getMetadata().loadAlbumCover();
 						selectable.loadAttempted();
-						simpleDebug("Loaded " + selectable.getMetadata().getTitle());
+						simpleDebug("Loaded album cover of " + selectable.getMetadata().getTitle());
 					} else {
 						simpleDebug("Skipping " + selectable.getMetadata().getTitle());
 					}