main menu particle effects

android/assets/particles/beateffect.p

@@ -1,31 +1,27 @@
-beat
+main
 - Delay -
 active: false
 - Duration - 
-lowMin: 300.0
-lowMax: 300.0
+lowMin: 150.0
+lowMax: 150.0
 - Count - 
 min: 0
-max: 50
+max: 20
 - Emission - 
 lowMin: 0.0
-lowMax: 3.0
-highMin: 50.0
-highMax: 60.0
+lowMax: 0.0
+highMin: 100.0
+highMax: 150.0
 relative: false
-scalingCount: 3
+scalingCount: 1
 scaling0: 1.0
-scaling1: 0.19607843
-scaling2: 0.0
-timelineCount: 3
+timelineCount: 1
 timeline0: 0.0
-timeline1: 0.20547946
-timeline2: 1.0
 - Life - 
 lowMin: 0.0
 lowMax: 0.0
-highMin: 750.0
-highMax: 1500.0
+highMin: 2500.0
+highMax: 3000.0
 relative: false
 scalingCount: 2
 scaling0: 1.0
@@ -44,8 +40,8 @@ shape: line
 - Spawn Width - 
 lowMin: 0.0
 lowMax: 0.0
-highMin: 64.0
-highMax: 64.0
+highMin: 3840.0
+highMax: 3840.0
 relative: false
 scalingCount: 1
 scaling0: 1.0
@@ -63,33 +59,33 @@ timelineCount: 1
 timeline0: 0.0
 - Scale - 
 lowMin: 0.0
-lowMax: 0.5
-highMin: 0.75
-highMax: 1.25
+lowMax: 0.0
+highMin: 45.0
+highMax: 135.0
 relative: false
-scalingCount: 5
-scaling0: 0.64705884
+scalingCount: 3
+scaling0: 1.0
 scaling1: 1.0
-scaling2: 1.0
-scaling3: 0.74509805
-scaling4: 0.3529412
-timelineCount: 5
+scaling2: 0.25490198
+timelineCount: 3
 timeline0: 0.0
-timeline1: 0.13013698
-timeline2: 0.74657536
-timeline3: 0.9246575
-timeline4: 1.0
+timeline1: 0.7876712
+timeline2: 1.0
 - Velocity - 
 active: true
 lowMin: 0.0
 lowMax: 0.0
-highMin: 15.0
-highMax: 30.0
+highMin: 540.0
+highMax: 1080.0
 relative: false
-scalingCount: 1
+scalingCount: 3
 scaling0: 1.0
-timelineCount: 1
+scaling1: 1.0
+scaling2: 0.6666667
+timelineCount: 3
 timeline0: 0.0
+timeline1: 0.69863015
+timeline2: 0.9931507
 - Angle - 
 active: true
 lowMin: 90.0
@@ -99,75 +95,49 @@ highMax: 135.0
 relative: false
 scalingCount: 3
 scaling0: 1.0
-scaling1: 0.0
-scaling2: 0.0
+scaling1: 0.43137255
+scaling2: 0.13725491
 timelineCount: 3
 timeline0: 0.0
-timeline1: 0.5
-timeline2: 1.0
+timeline1: 0.5684931
+timeline2: 0.8630137
 - Rotation - 
-active: true
-lowMin: 0.0
-lowMax: 0.0
-highMin: 0.0
-highMax: 360.0
-relative: false
-scalingCount: 2
-scaling0: 0.0
-scaling1: 1.0
-timelineCount: 2
-timeline0: 0.0
-timeline1: 1.0
+active: false
 - Wind - 
-active: true
-lowMin: 0.0
-lowMax: 0.0
-highMin: 0.0
-highMax: 0.0
-relative: false
-scalingCount: 1
-scaling0: 1.0
-timelineCount: 1
-timeline0: 0.0
+active: false
 - Gravity - 
 active: false
 - Tint - 
-colorsCount: 12
-colors0: 0.6431373
-colors1: 0.0
-colors2: 0.0
-colors3: 0.0
-colors4: 0.12941177
-colors5: 1.0
-colors6: 0.8784314
-colors7: 0.0
-colors8: 1.0
-colors9: 1.0
-colors10: 0.9254902
-colors11: 0.0
-timelineCount: 4
+colorsCount: 6
+colors0: 0.050980393
+colors1: 0.74509805
+colors2: 1.0
+colors3: 0.02745098
+colors4: 0.41960785
+colors5: 0.56078434
+timelineCount: 2
 timeline0: 0.0
-timeline1: 0.5094081
-timeline2: 0.7872049
-timeline3: 1.0
+timeline1: 1.0
 - Transparency - 
 lowMin: 0.0
 lowMax: 0.0
 highMin: 1.0
 highMax: 1.0
 relative: false
-scalingCount: 5
-scaling0: 0.2982456
-scaling1: 0.64912283
-scaling2: 0.80701756
-scaling3: 0.47368422
-scaling4: 0.0
-timelineCount: 5
+scalingCount: 6
+scaling0: 0.0
+scaling1: 0.19298245
+scaling2: 1.0
+scaling3: 1.0
+scaling4: 0.21052632
+scaling5: 0.0
+timelineCount: 6
 timeline0: 0.0
-timeline1: 0.28082192
-timeline2: 0.6643836
-timeline3: 0.8561644
-timeline4: 1.0
+timeline1: 0.23972602
+timeline2: 0.41095892
+timeline3: 0.60958904
+timeline4: 0.79452056
+timeline5: 1.0
 - Options - 
 attached: false
 continuous: false
@@ -176,4 +146,4 @@ additive: true
 behind: false
 premultipliedAlpha: false
 - Image Path -
-triangle.png
+glow-circle.png

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

@@ -21,6 +21,9 @@ public class DoubleHorizontalVisualizer implements Disposable {
 	private int binsPerBar;
 	private float offset;
 	private int boundaryThickness;
+	private boolean significantBeat;
+	private float maxAverageAmplitude;
+	private byte significantFrames;
 	private float targetDelta;
 	private float spacePercentage = 0.7f;
 	private float baseSensitivity = 0.009f;
@@ -29,7 +32,7 @@ public class DoubleHorizontalVisualizer implements Disposable {
 	private int smoothRange = 2;
 	private int binsToInclude = 120;
 	private Color colorBegin = new Color(0.5f, 0.6f, 0.8f, 0.46f);
-	private Color colorEnd = new Color();
+
 	/**
 	 * 
 	 * @param barCount amount of bars this visualizer should have.
@@ -54,13 +57,37 @@ public class DoubleHorizontalVisualizer implements Disposable {
 	}
 	
 	public void act(float delta) {
+		if (pcm.hasAudioChanged()) {
+			maxAverageAmplitude = 0;
+			significantBeat = false;
+		}
 		float[] freqBins = pcm.getFrequencyBins();
+		float averageAmplitude = 0;
 		for (int bar = 0; bar < amplitudes.length; bar++) {
 			amplitudes[bar] = 0;
 			for (int freq = bar*binsPerBar; freq < (bar*binsPerBar) + binsPerBar; freq++) {
 				amplitudes[bar] += Math.abs(freqBins[freq]) * baseSensitivity;
 			}
 			amplitudes[bar] /= binsPerBar;
+			
+			averageAmplitude += amplitudes[bar];
+		}
+		
+		averageAmplitude /= amplitudes.length;
+		if (averageAmplitude > maxAverageAmplitude*0.5f && !significantBeat) {
+			if (maxAverageAmplitude != 0) {
+				significantFrames++;
+				if (significantFrames >= 16) {
+					significantFrames = 0;
+					significantBeat = true;
+				}
+			}
+			
+			if (averageAmplitude > maxAverageAmplitude) {
+				maxAverageAmplitude = averageAmplitude;
+			}
+		} else {
+			significantBeat = false;
 		}
 		for (int bar = 0; bar < barHeights.length; bar++) {
 			int smoothCount = 1;
@@ -147,8 +174,12 @@ public class DoubleHorizontalVisualizer implements Disposable {
 		return y;
 	}
 	
+	public boolean isSignificantBeat() {
+		return significantBeat;
+	}
+	
 	public void updateMusic() {
-		pcm.updateMusic();
+		pcm.loadMusic();
 	}
 	
 	@Override

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

@@ -8,5 +8,7 @@ public interface PCMSystem extends Disposable {
 
 	int getWindowSize();
 	
-	void updateMusic();
+	void loadMusic();
+	
+	boolean hasAudioChanged();
 }

core/src/zero1hd/rhythmbullet/graphics/ui/components/ScrollingText.java

@@ -14,7 +14,7 @@ import com.badlogic.gdx.scenes.scene2d.ui.Widget;
 import com.badlogic.gdx.scenes.scene2d.utils.ClickListener;
 import com.badlogic.gdx.scenes.scene2d.utils.ScissorStack;
 
-public class ScrollText extends Widget {
+public class ScrollingText extends Widget {
 	Rectangle scissors = new Rectangle();
 	Rectangle clipBounds = new Rectangle();
 	
@@ -35,13 +35,17 @@ public class ScrollText extends Widget {
 	private NinePatch background;
 	
 	private Vector2 coords;
-	public ScrollText(String text, String text2, Skin skin, boolean scrollOnHover, boolean useBackground) {
+	
+	private float targetDelta;
+	
+	public ScrollingText(String text, String text2, Skin skin, boolean scrollOnHover, boolean useBackground, float targetDelta) {
 		super();
 		font = skin.getFont("default-font");
 		init(text, text2, skin, scrollOnHover, useBackground);
+		this.targetDelta = targetDelta;
 	}
 	
-	public ScrollText(String text, String text2, Skin skin, String fontName, Color color, boolean scrollOnHover, boolean useBackground) {
+	public ScrollingText(String text, String text2, Skin skin, String fontName, Color color, boolean scrollOnHover, boolean useBackground) {
 		super();
 		font = skin.getFont(fontName);
 		font.setColor(color);
@@ -102,21 +106,18 @@ public class ScrollText extends Widget {
 		}
 	}
 	
-	
 	public void scroll(float delta) {
 		if (text1Offset >= -text1Width) {
-			text1Offset -= 60*delta;
-
-			
+			text1Offset -= 60*targetDelta;
 			if ((text1Offset < - Math.abs((text1Width - clipBounds.getWidth())) - 50) || text2Offset != clipBounds.getWidth()) {
-				text2Offset -= 60*delta;
+				text2Offset -= 60*targetDelta;
 				if (text2Offset <= -text2Width) {
 					text2Offset = clipBounds.getWidth();
 				}
 			}
 
 		} else {
-			text2Offset -= 60*delta;
+			text2Offset -= 60*targetDelta;
 			if (text2Offset < - Math.abs((text2Width - clipBounds.getWidth())) - 50) {
 				text1Offset = clipBounds.getWidth();
 			}

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

@@ -27,6 +27,7 @@ public class PCMObtainer implements Observer, PCMSystem {
 	private int windowSize = 1024;
 	private int sampleRate;
 	private long millisPerWindow;
+	private boolean songChanged;
 	private DecimalFormat df;
 	private float[] PCM = new float[windowSize];
 	private float[] frequencyBins = new float[windowSize / 2];
@@ -102,14 +103,14 @@ public class PCMObtainer implements Observer, PCMSystem {
 		synchronizeBufferWithPlayback();
 	}
 
-	private int calcBufferPosition() {
+	private int calculateBufferPosition() {
 		int offset = (int) alGetSourcef(sourceID, AL11.AL_SAMPLE_OFFSET);
 		offset = (offset / windowSize) * windowSize;
 		return offset;
 	}
 
 	private boolean synchronizeBufferWithPlayback() {
-		int bufferPos = calcBufferPosition();
+		int bufferPos = calculateBufferPosition();
 		synchronized (this) {
 			if (bufferPos <= playingBuffer.limit() && bufferPos >= 0) {
 				playingBuffer.position(bufferPos);
@@ -121,7 +122,7 @@ public class PCMObtainer implements Observer, PCMSystem {
 	}
 	
 	@Override
-	public void updateMusic() {
+	public void loadMusic() {
 		Gdx.app.debug("PCMObtainer", "music set.");
 		sourceID = -1;
 
@@ -129,8 +130,8 @@ public class PCMObtainer implements Observer, PCMSystem {
 		sampleRate = mc.getCurrentMusicHeader().getSampleRate();
 		String millisPerWindowF = df.format(windowSize/(float) sampleRate);
 		millisPerWindow = (long) (Float.valueOf(millisPerWindowF)*1000);
-		
-		attemptToSync();
+		songChanged = true;
+		begin();
 	}
 
 	@Override
@@ -140,14 +141,13 @@ public class PCMObtainer implements Observer, PCMSystem {
 				synchronized (this) {
 					System.arraycopy(PCM, 1, frequencyBins, 0, frequencyBins.length);
 				}
-				
+				updated = false;
 			}
 		} else {
 			for (int freqID = 0; freqID < frequencyBins.length; freqID++) {
 				frequencyBins[freqID] = 0;
 			}
 		}
-		updated = false;
 		return frequencyBins;
 	}
 
@@ -226,14 +226,14 @@ public class PCMObtainer implements Observer, PCMSystem {
 	public void update(Observable o, Object arg) {
 		if (o == mc) {
 			if (arg == mc.states.LOADED) {
-				updateMusic();
+				loadMusic();
 			} else if (arg == mc.states.PLAYING) {
-				attemptToSync();
+				begin();
 			}
 		}
 	}
 	
-	private void attemptToSync() {
+	private void begin() {
 		if (mc.isPlaying()) {
 			if (sourceID == -1) {
 				try {
@@ -252,4 +252,14 @@ public class PCMObtainer implements Observer, PCMSystem {
 	public void dispose() {
 		streamReadThread.stop();
 	}
+	
+	@Override
+	public boolean hasAudioChanged() {
+		if (songChanged) {
+			songChanged = false;
+			return true;
+		} else {
+			return false;
+		}
+	}
 }

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

@@ -5,8 +5,12 @@ import java.util.Observer;
 
 import com.badlogic.gdx.Gdx;
 import com.badlogic.gdx.assets.AssetManager;
+import com.badlogic.gdx.graphics.GL20;
 import com.badlogic.gdx.graphics.Texture;
 import com.badlogic.gdx.graphics.g2d.Batch;
+import com.badlogic.gdx.graphics.g2d.ParticleEffect;
+import com.badlogic.gdx.graphics.g2d.ParticleEffectPool;
+import com.badlogic.gdx.graphics.g2d.ParticleEffectPool.PooledEffect;
 import com.badlogic.gdx.math.Vector3;
 import com.badlogic.gdx.scenes.scene2d.Actor;
 import com.badlogic.gdx.scenes.scene2d.ui.Image;
@@ -16,6 +20,7 @@ import com.badlogic.gdx.scenes.scene2d.ui.Table;
 import com.badlogic.gdx.scenes.scene2d.ui.TextButton;
 import com.badlogic.gdx.scenes.scene2d.utils.ChangeListener;
 import com.badlogic.gdx.utils.Align;
+import com.badlogic.gdx.utils.Array;
 
 import zero1hd.rhythmbullet.RhythmBullet;
 import zero1hd.rhythmbullet.audio.MusicController;
@@ -24,7 +29,7 @@ import zero1hd.rhythmbullet.audio.visualizer.DoubleHorizontalVisualizer;
 import zero1hd.rhythmbullet.desktop.audio.PCMObtainer;
 import zero1hd.rhythmbullet.graphics.ui.Page;
 import zero1hd.rhythmbullet.graphics.ui.components.MusicControls;
-import zero1hd.rhythmbullet.graphics.ui.components.ScrollText;
+import zero1hd.rhythmbullet.graphics.ui.components.ScrollingText;
 import zero1hd.rhythmbullet.util.ScreenConfiguration;
 
 public class MainPage extends Page implements Observer {
@@ -40,10 +45,15 @@ public class MainPage extends Page implements Observer {
 	private TextButton quitButton;
 	
 	private MusicControls musicControls;
-	private ScrollText scrollText;
+	private ScrollingText scrollText;
 	
 	private DoubleHorizontalVisualizer dhv;
 	
+	private boolean playParticles = true;
+	private ParticleEffectPool particlePool;
+	private Array<PooledEffect> particles;
+	private float particleScale;
+	
 	public MainPage(MusicController musicController, AudioMetadataController mmc, AssetManager assetManager, Skin skin, ScreenConfiguration screenConfiguration, ChangeListener playButtonListener, ChangeListener optionsButtonListener) {
 		super(0, 0);
 		this.mc = musicController;
@@ -97,7 +107,7 @@ public class MainPage extends Page implements Observer {
 		musicControls.setPosition((getWidth()-musicControls.getWidth() - 15f), 15f);
 		addActor(musicControls);
 		
-		scrollText = new ScrollText("...", "...", skin, false, true);
+		scrollText = new ScrollingText("...", "...", skin, false, true, 1f/screenConfiguration.getTargetFramesPerSecond());
 		scrollText.setWidth(0.5f*getWidth());
 		scrollText.setPosition(15, getHeight() - scrollText.getHeight()-30f);
 		addActor(scrollText);
@@ -107,6 +117,11 @@ public class MainPage extends Page implements Observer {
 			dhv.updateMusic();
 		}
 		
+		particles = new Array<>();
+		ParticleEffect particle = assetManager.get("beateffect.p", ParticleEffect.class);
+		particleScale = getWidth()/particle.findEmitter("main").getSpawnWidth().getHighMax();
+		particlePool = new ParticleEffectPool(assetManager.get("beateffect.p", ParticleEffect.class), 0, 16);
+		
 	}
 	
 	@Override
@@ -118,9 +133,40 @@ public class MainPage extends Page implements Observer {
 	@Override
 	public void draw(Batch batch, float parentAlpha) {
 		dhv.draw(batch, parentAlpha);
+		updateParticles(batch);
 		super.draw(batch, parentAlpha);
 	}
-
+	
+	private void updateParticles(Batch batch) {
+		if (mc.isPlaying() && playParticles) {
+			if (particles.size < 16 && dhv.isSignificantBeat()) {
+				PooledEffect particle = particlePool.obtain();
+				particle.scaleEffect(particleScale);
+				particles.add(particle);
+			}
+			if (particles.size > 0) {
+				for (int i = particles.size - 1; i >= 0; i--) {
+					PooledEffect particle = particles.get(i);
+					particle.draw(batch, Gdx.graphics.getDeltaTime());
+					if (particle.isComplete()) {
+						particles.removeIndex(i);
+						particle.free();
+					}
+				}
+			}
+		}
+		
+		batch.setBlendFunction(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA);
+	}
+	
+	public void stopParticles() {
+		playParticles = false;
+		for (int i = particles.size - 1; i >= 0 && particles.size > 0; i--) {
+			particles.get(i).free();
+			particles.clear();
+		}
+	}
+	
 	@Override
 	public void dispose() {
 		dhv.dispose();
@@ -131,6 +177,7 @@ public class MainPage extends Page implements Observer {
 	@Override
 	public void setCameraPositionToPage(Vector3 cameraPosition) {
 		getStage().setScrollFocus(null);
+		playParticles = true;
 		super.setCameraPositionToPage(cameraPosition);
 	}
 	

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

@@ -128,7 +128,7 @@ public class MainScreen extends ScreenAdapter implements ResizeReadyScreen {
 		creditsPage = new CreditsPage(rhythmBullet.getSkin());
 		stage.addActor(creditsPage);
 		
-		musicSelectionPage = new MusicSelectionPage(rhythmBullet.getAssetManager(), rhythmBullet.getSkin(), musicController, musicMetadataController, listeners.returnToMainPageListener, listeners.analysisPageButtonListener);
+		musicSelectionPage = new MusicSelectionPage(rhythmBullet.getAssetManager(), rhythmBullet.getSkin(), musicController, musicMetadataController, rhythmBullet.getScreenConfiguration(), listeners.returnToMainPageListener, listeners.analysisPageButtonListener);
 		stage.addActor(musicSelectionPage);
 		
 		analysisPage = new AnalysisPage(musicController, musicMetadataController, rhythmBullet.getSkin(), listeners.musicSelectionPageButtonListener, listeners.confirmedSongListener);
@@ -182,6 +182,7 @@ public class MainScreen extends ScreenAdapter implements ResizeReadyScreen {
 			@Override
 			public void changed(ChangeEvent event, Actor actor) {
 				setDisplayedPage(musicSelectionPage);
+				mainPage.stopParticles();
 			}
 		};
 		
@@ -203,6 +204,7 @@ public class MainScreen extends ScreenAdapter implements ResizeReadyScreen {
 			@Override
 			public void changed(ChangeEvent event, Actor actor) {
 				setDisplayedPage(optionsPage);
+				mainPage.stopParticles();
 			}
 		};
 		
@@ -224,6 +226,7 @@ public class MainScreen extends ScreenAdapter implements ResizeReadyScreen {
 			@Override
 			public void changed(ChangeEvent event, Actor actor) {
 				setDisplayedPage(creditsPage);
+				mainPage.stopParticles();
 			}
 		};
 		

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

@@ -37,7 +37,8 @@ import zero1hd.rhythmbullet.audio.AudioMetadataController;
 import zero1hd.rhythmbullet.audio.metadata.AudioMetadata;
 import zero1hd.rhythmbullet.audio.MusicController;
 import zero1hd.rhythmbullet.graphics.ui.Page;
-import zero1hd.rhythmbullet.graphics.ui.components.ScrollText;
+import zero1hd.rhythmbullet.graphics.ui.components.ScrollingText;
+import zero1hd.rhythmbullet.util.ScreenConfiguration;
 
 public class MusicSelectionPage extends Page implements Observer {
 	Preferences musicFileAnnotation;
@@ -48,6 +49,7 @@ public class MusicSelectionPage extends Page implements Observer {
 	private VerticalGroup vGroup;
 	private TextButton back;
 	private ScrollPane scrollPane;
+	private ScreenConfiguration screenConfig;
 	
 	private musicSelectionLoaderThread selectionLoaderThread;
 	
@@ -65,7 +67,7 @@ public class MusicSelectionPage extends Page implements Observer {
 	private float scrollTimer, scrollDelay = 0.2f, scrollDelMod, songSelectionTimer;
 	private float musicSelectDelay;
 	
-	public MusicSelectionPage(AssetManager assetManager, Skin skin, MusicController musicController, AudioMetadataController musicMetadataController, ChangeListener backButtonListener, ChangeListener beginButtonListener) {
+	public MusicSelectionPage(AssetManager assetManager, Skin skin, MusicController musicController, AudioMetadataController musicMetadataController, ScreenConfiguration screenConfiguration, ChangeListener backButtonListener, ChangeListener beginButtonListener) {
 		super(1, 0);
 		this.assets = assetManager;
 		this.mc = musicController;
@@ -76,7 +78,7 @@ public class MusicSelectionPage extends Page implements Observer {
 		selectables = new MusicSelectableButtonGroup();
 		selectables.setMinCheckCount(0);
 		musicFileAnnotation = Gdx.app.getPreferences("music_file_annotation");
-		
+		this.screenConfig = screenConfiguration;
 		scrollPane = new ScrollPane(vGroup, skin);
 		scrollPane.setSize(0.45f*getWidth(), getHeight());
 		scrollPane.setOverscroll(false, false);
@@ -510,7 +512,7 @@ public class MusicSelectionPage extends Page implements Observer {
 	}
 	
 	private class InformationTable extends Table {
-		private ScrollText songTitle;
+		private ScrollingText songTitle;
 		private Label author;
 		private Label musicDuration;
 		private Label previousTop;
@@ -525,7 +527,7 @@ public class MusicSelectionPage extends Page implements Observer {
 			setSize(width, height);
 			subInformation = new Table(skin);
 			albumCover = new Image(assets.get("defaultCover.png", Texture.class));
-			songTitle = new ScrollText("", null, skin, true, true);
+			songTitle = new ScrollingText("", null, skin, true, true, 1f/screenConfig.getTargetFramesPerSecond());
 			author = new Label(null, skin, "sub-font", skin.getColor("default"));
 			musicDuration = new Label(null, skin, "sub-font", skin.getColor("default"));
 			previousTop = new Label(null, skin, "sub-font", skin.getColor("default"));