EventBus now using thread; +Textures; +Audio; Cleaner structure

src/mightypork/rogue/App.java

@@ -4,22 +4,21 @@ package mightypork.rogue;
 import java.io.File;
 import java.io.RandomAccessFile;
 import java.nio.channels.FileLock;
+import java.util.ArrayList;
 
 import javax.swing.JOptionPane;
 
-import mightypork.rogue.display.DisplaySystem;
+import mightypork.rogue.audio.SoundSystem;
-import mightypork.rogue.display.Screen;
+import mightypork.rogue.bus.events.*;
-import mightypork.rogue.display.screens.screenBouncy.TestLayeredScreen;
+import mightypork.rogue.gui.screens.ScreenRegistry;
 import mightypork.rogue.input.InputSystem;
 import mightypork.rogue.input.KeyStroke;
-import mightypork.rogue.sounds.SoundSystem;
+import mightypork.rogue.render.DisplaySystem;
-import mightypork.rogue.tasks.TaskTakeScreenshot;
-import mightypork.rogue.textures.TextureRegistry;
-import mightypork.rogue.util.Utils;
 import mightypork.utils.control.bus.EventBus;
 import mightypork.utils.control.bus.events.DestroyEvent;
 import mightypork.utils.control.bus.events.UpdateEvent;
-import mightypork.utils.control.timing.TimerDelta;
+import mightypork.utils.control.interf.Destroyable;
+import mightypork.utils.control.interf.Updateable;
 import mightypork.utils.logging.Log;
 import mightypork.utils.logging.LogInstance;
 
@@ -38,22 +37,12 @@ public class App implements AppAccess {
 	
 	// modules
 	private InputSystem inputSystem;
-	private SoundSystem soundSystem;
 	private DisplaySystem displaySystem;
+	private static SoundSystem soundSystem;
 	private EventBus eventBus;
-	private TextureRegistry textureRegistry;
+	private MainLoop mainLoop;
 	
-	/** current screen */
+	public ScreenRegistry screens;
-	private Screen screen;
-	
-	/** Flag that screenshot is scheduled to be taken next loop */
-	private boolean scheduledScreenshot = false;
-	
-	/** Log instance; accessible as static via Log. */
-	private LogInstance log;
-	
-	/** timer */
-	private TimerDelta timerRender;
 	
 	
 	/**
@@ -82,34 +71,9 @@ public class App implements AppAccess {
 	private void start()
 	{
 		initialize();
-		mainLoop();
-		shutdown();
-	}
-	
-	
-	/**
-	 * App main loop
-	 */
-	private void mainLoop()
-	{
-		screen = new TestLayeredScreen(this);
-		
-		screen.setActive(true);
 		
-		timerRender = new TimerDelta();
+		Log.i("Starting main loop...");
-		
+		mainLoop.start();
-		while (!displaySystem.isCloseRequested()) {
-			displaySystem.beginFrame();
-			
-			eventBus.broadcast(new UpdateEvent(timerRender.getDelta()));
-			
-			if (scheduledScreenshot) {
-				takeScreenshot();
-				scheduledScreenshot = false;
-			}
-			
-			displaySystem.endFrame();
-		}
 	}
 	
 	
@@ -120,7 +84,7 @@ public class App implements AppAccess {
 	 */
 	public static void onCrash(Throwable error)
 	{
-		Log.e("The game has crashed.", error);
+		Log.e("The game has crashed!", error);
 		
 		if (inst != null) inst.shutdown();
 	}
@@ -129,7 +93,11 @@ public class App implements AppAccess {
 	@Override
 	public void shutdown()
 	{
-		bus().broadcast(new DestroyEvent());
+		bus().send(new DestroyEvent());
+		
+		bus().destroy();
+		
+		Log.i("Shutting down...");
 		
 		System.exit(0);
 	}
@@ -137,34 +105,124 @@ public class App implements AppAccess {
 	
 	public void initialize()
 	{
-		Log.i("Initializing subsystems");
+		/*
-		
+		 *  Lock working directory
-		// lock working directory
+		 */
 		initLock();
 		
-		// setup logging
+		/*
-		log = Log.create("runtime", Paths.LOGS, 10);
+		 * Setup logging
+		 */
+		LogInstance log = Log.create("runtime", Paths.LOGS, 10);
 		log.enable(Config.LOGGING_ENABLED);
 		log.enableSysout(Config.LOG_TO_STDOUT);
 		
-		// event bus
+		Log.f1("Initializing subsystems...");
-		eventBus = new EventBus();
 		
-		// Subsystems
+		/*
-		textureRegistry = new TextureRegistry(this);
+		 * Event bus
+		 */
+		Log.f2("Initializing Event Bus...");
+		eventBus = new EventBus();
+		eventBus.enableLogging(Config.LOG_BUS);
+		initChannels();
 		
+		/*
+		 * Display
+		 */
+		Log.f2("Initializing Display System...");
 		displaySystem = new DisplaySystem(this);
 		displaySystem.createMainWindow(Const.WINDOW_W, Const.WINDOW_H, true, Config.START_IN_FS, Const.TITLEBAR);
 		displaySystem.setTargetFps(Const.FPS_RENDER);
 		
+		/*
+		 * Audio
+		 */
+		Log.f2("Initializing Sound System...");
 		soundSystem = new SoundSystem(this);
 		soundSystem.setMasterVolume(1);
 		
+		/*
+		 * Input
+		 */
+		Log.f2("Initializing Input System...");
 		inputSystem = new InputSystem(this);
 		setupGlobalKeystrokes();
 		
-		// load resources
+		/*
-		Resources.load(this);
+		 * Screen registry
+		 */
+		Log.f2("Initializing screen registry...");
+		screens = new ScreenRegistry(this);
+		
+		/*
+		 * Load resources
+		 */
+		Log.f1("Registering resources...");
+		Res.load(this);
+		
+		/*
+		 * Prepare main loop
+		 */
+		Log.f1("Preparing main loop...");
+		ArrayList<Runnable> loopTasks = new ArrayList<Runnable>();
+		loopTasks.add(new Runnable() {
+			
+			@Override
+			public void run()
+			{
+				screens.render();
+			}
+		});
+		
+		mainLoop = new MainLoop(this, loopTasks);
+	}
+	
+	
+	private void initChannels()
+	{
+		Log.f3("Registering channels...");
+		
+		bus().addChannel(DestroyEvent.class, Destroyable.class);
+		bus().addChannel(UpdateEvent.class, Updateable.class);
+		
+		bus().addChannel(ScreenChangeEvent.class, ScreenChangeEvent.Listener.class);
+		bus().addChannel(KeyboardEvent.class, KeyboardEvent.Listener.class);
+		bus().addChannel(MouseMotionEvent.class, MouseMotionEvent.Listener.class);
+		bus().addChannel(MouseButtonEvent.class, MouseButtonEvent.Listener.class);
+		bus().addChannel(ScreenRequestEvent.class, ScreenRequestEvent.Listener.class);
+		bus().addChannel(ActionRequest.class, ActionRequest.Listener.class);
+	}
+	
+	
+	private void setupGlobalKeystrokes()
+	{
+		input().bindKeyStroke(new KeyStroke(Keyboard.KEY_F11), new Runnable() {
+			
+			@Override
+			public void run()
+			{
+				bus().queue(new ActionRequest(RequestType.FULLSCREEN));
+			}
+		});
+		
+		input().bindKeyStroke(new KeyStroke(Keyboard.KEY_F2), new Runnable() {
+			
+			@Override
+			public void run()
+			{
+				bus().queue(new ActionRequest(RequestType.SCREENSHOT));
+			}
+		});
+		
+		input().bindKeyStroke(new KeyStroke(Keyboard.KEY_LCONTROL, Keyboard.KEY_Q), new Runnable() {
+			
+			@Override
+			public void run()
+			{
+				bus().queue(new ActionRequest(RequestType.SHUTDOWN));
+			}
+		});
 	}
 	
 	
@@ -173,7 +231,7 @@ public class App implements AppAccess {
 		if (!Config.SINGLE_INSTANCE) return;
 		
 		if (!lockInstance()) {
-			System.out.println("Working directory is locked.\nOnly one instance can run at a time.");
+			System.err.println("Working directory is locked.\nOnly one instance can run at a time.");
 			
 			//@formatter:off
 			JOptionPane.showMessageDialog(
@@ -222,53 +280,6 @@ public class App implements AppAccess {
 	}
 	
 	
-	/**
-	 * initialize inputs
-	 */
-	private void setupGlobalKeystrokes()
-	{
-		inputSystem.bindKeyStroke(new KeyStroke(Keyboard.KEY_F2), new Runnable() {
-			
-			@Override
-			public void run()
-			{
-				Log.f3("F2, taking screenshot.");
-				scheduledScreenshot = true;
-			}
-		});
-		
-		inputSystem.bindKeyStroke(new KeyStroke(false, Keyboard.KEY_F11), new Runnable() {
-			
-			@Override
-			public void run()
-			{
-				Log.f3("F11, toggling fullscreen.");
-				displaySystem.switchFullscreen();
-			}
-		});
-		
-		inputSystem.bindKeyStroke(new KeyStroke(Keyboard.KEY_LCONTROL, Keyboard.KEY_Q), new Runnable() {
-			
-			@Override
-			public void run()
-			{
-				Log.f3("CTRL+Q, shutting down.");
-				shutdown();
-			}
-		});
-	}
-	
-	
-	/**
-	 * Do take a screenshot
-	 */
-	private void takeScreenshot()
-	{
-		soundSystem.getEffect("gui.shutter").play(1);
-		Utils.runAsThread(new TaskTakeScreenshot(displaySystem));
-	}
-	
-	
 	/**
 	 * @return sound system of the running instance
 	 */
@@ -308,11 +319,4 @@ public class App implements AppAccess {
 		return eventBus;
 	}
 	
-	
-	@Override
-	public TextureRegistry tx()
-	{
-		return textureRegistry;
-	}
-	
 }

src/mightypork/rogue/AppAccess.java

@@ -1,10 +1,9 @@
 package mightypork.rogue;
 
 
-import mightypork.rogue.display.DisplaySystem;
+import mightypork.rogue.audio.SoundSystem;
 import mightypork.rogue.input.InputSystem;
-import mightypork.rogue.sounds.SoundSystem;
+import mightypork.rogue.render.DisplaySystem;
-import mightypork.rogue.textures.TextureRegistry;
 import mightypork.utils.control.bus.EventBus;
 
 
@@ -39,12 +38,6 @@ public interface AppAccess {
 	abstract EventBus bus();
 	
 	
-	/**
-	 * @return texture registry
-	 */
-	abstract TextureRegistry tx();
-	
-	
 	/**
 	 * Quit to OS<br>
 	 * Destroy app & exit VM

src/mightypork/rogue/AppAdapter.java

@@ -1,10 +1,9 @@
 package mightypork.rogue;
 
 
-import mightypork.rogue.display.DisplaySystem;
+import mightypork.rogue.audio.SoundSystem;
 import mightypork.rogue.input.InputSystem;
-import mightypork.rogue.sounds.SoundSystem;
+import mightypork.rogue.render.DisplaySystem;
-import mightypork.rogue.textures.TextureRegistry;
 import mightypork.utils.control.bus.EventBus;
 
 
@@ -59,11 +58,4 @@ public class AppAdapter implements AppAccess {
 		app.shutdown();
 	}
 	
-	
-	@Override
-	public TextureRegistry tx()
-	{
-		return app.tx();
-	}
-	
 }

src/mightypork/rogue/Config.java

@@ -77,5 +77,6 @@ public class Config {
 	public static boolean SINGLE_INSTANCE = true;
 	
 	public static boolean LOG_FONTS = false;
+	public static boolean LOG_BUS = false;
 	
 }

src/mightypork/rogue/Const.java

@@ -15,8 +15,7 @@ public class Const {
 	public static final String TITLEBAR = APP_NAME + " v." + VERSION;
 	
 	// AUDIO
-	public static final int FPS_RENDER = 200; // max
+	public static final int FPS_RENDER = 80; // max
-	public static final long FPS_GUI_UPDATE = 60;
 	
 	// INITIAL WINDOW SIZE
 	public static final int WINDOW_W = 1024;

src/mightypork/rogue/Deferred.java

@@ -0,0 +1,21 @@
+package mightypork.rogue;
+
+
+/**
+ * Deferred resource
+ * 
+ * @author MightyPork
+ */
+public interface Deferred {
+	
+	/**
+	 * Load the actual resource if not loaded yet
+	 */
+	public void load();
+	
+	
+	/**
+	 * @return true if already loaded
+	 */
+	public boolean isLoaded();
+}

src/mightypork/rogue/MainLoop.java

@@ -0,0 +1,112 @@
+package mightypork.rogue;
+
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Queue;
+import java.util.concurrent.ConcurrentLinkedQueue;
+
+import mightypork.rogue.bus.Subsystem;
+import mightypork.rogue.bus.events.ActionRequest;
+import mightypork.rogue.bus.events.RequestType;
+import mightypork.rogue.bus.events.ScreenRequestEvent;
+import mightypork.rogue.tasks.TaskTakeScreenshot;
+import mightypork.rogue.util.Utils;
+import mightypork.utils.control.bus.events.UpdateEvent;
+import mightypork.utils.control.timing.TimerDelta;
+
+
+public class MainLoop extends Subsystem implements ActionRequest.Listener {
+	
+	private Queue<Runnable> taskQueue = new ConcurrentLinkedQueue<Runnable>();
+	private List<Runnable> regularTasks;
+	
+	
+	public MainLoop(App app, ArrayList<Runnable> loopTasks) {
+		super(app);
+		
+		this.regularTasks = loopTasks;
+	}
+	
+	/** timer */
+	private TimerDelta timer;
+	private boolean running = true;
+	
+	
+	public void start()
+	{
+		bus().queue(new ScreenRequestEvent("test.texture"));
+		
+		timer = new TimerDelta();
+		
+		while (running) {
+			disp().beginFrame();
+			
+			bus().send(new UpdateEvent(timer.getDelta()));
+			
+			for (Runnable r : regularTasks) {
+				r.run();
+			}
+			
+			Runnable r;
+			while ((r = taskQueue.poll()) != null) {
+				r.run();
+			}
+			
+			disp().endFrame();
+		}
+	}
+	
+	
+	@Override
+	protected void deinit()
+	{
+		running = false;
+	}
+	
+	
+	@Override
+	public void requestAction(RequestType request)
+	{
+		switch (request) {
+			case FULLSCREEN:
+				taskQueue.add(taskFullscreen);
+				break;
+			
+			case SCREENSHOT:
+				taskQueue.add(taskScreenshot);
+				break;
+			
+			case SHUTDOWN:
+				taskQueue.add(taskShutdown);
+		}
+	}
+	
+	private final Runnable taskScreenshot = new Runnable() {
+		
+		@Override
+		public void run()
+		{
+			Res.getEffect("gui.shutter").play(1);
+			Utils.runAsThread(new TaskTakeScreenshot(disp()));
+		}
+	};
+	
+	private final Runnable taskShutdown = new Runnable() {
+		
+		@Override
+		public void run()
+		{
+			shutdown();
+		}
+	};
+	
+	private final Runnable taskFullscreen = new Runnable() {
+		
+		@Override
+		public void run()
+		{
+			disp().switchFullscreen();
+		}
+	};
+}

src/mightypork/rogue/Res.java

@@ -0,0 +1,87 @@
+package mightypork.rogue;
+
+
+import mightypork.rogue.audio.EffectPlayer;
+import mightypork.rogue.audio.LoopPlayer;
+import mightypork.rogue.audio.SoundBank;
+import mightypork.rogue.gui.screens.screenBouncy.ScreenTestAnim;
+import mightypork.rogue.gui.screens.screenTextures.ScreenTextureTest;
+import mightypork.rogue.render.textures.TextureBank;
+import mightypork.rogue.render.textures.TxQuad;
+
+import org.newdawn.slick.opengl.Texture;
+
+
+public class Res {
+	
+	private static TextureBank textures;
+	private static SoundBank sounds;
+	private static boolean initialized = false;
+	
+	
+	public static void load(App app)
+	{
+		if (initialized) return;
+		initialized = true;
+		
+		textures = new TextureBank(app);
+		sounds = new SoundBank(app);
+		
+		loadSounds(app);
+		loadTextures(app);
+		loadFonts(app);
+		loadScreens(app);
+	}
+	
+	
+	private static void loadFonts(App app)
+	{
+		
+	}
+	
+	
+	private static void loadTextures(App app)
+	{
+		textures.loadTexture("test.kitten", "/res/img/kitten.png");
+	}
+	
+	
+	private static void loadSounds(App app)
+	{
+		sounds.addEffect("gui.shutter", "/res/audio/shutter.ogg", 1, 1);
+		
+		sounds.addLoop("test.wilderness", "/res/audio/wilderness.ogg", 1, 1, 3, 3);
+	}
+	
+	
+	private static void loadScreens(App app)
+	{
+		app.screens.add("test.anim", new ScreenTestAnim(app));
+		app.screens.add("test.texture", new ScreenTextureTest(app));
+	}
+	
+	
+	public static TxQuad getTxQuad(String key)
+	{
+		return textures.getTxQuad(key);
+	}
+	
+	
+	public static Texture getTexture(String key)
+	{
+		return textures.getTexture(key);
+	}
+	
+	
+	public static LoopPlayer getLoop(String key)
+	{
+		return sounds.getLoop(key);
+	}
+	
+	
+	public static EffectPlayer getEffect(String key)
+	{
+		return sounds.getEffect(key);
+	}
+	
+}

src/mightypork/rogue/Resources.java

@@ -1,33 +0,0 @@
-package mightypork.rogue;
-
-
-public class Resources {
-	
-	public static void load(AppAccess app)
-	{
-		
-		loadSounds(app);
-		
-		loadTextures(app);
-		
-		loadFonts(app);
-	}
-	
-	
-	private static void loadFonts(AppAccess app)
-	{
-		
-	}
-	
-	
-	private static void loadTextures(AppAccess app)
-	{
-		
-	}
-	
-	
-	private static void loadSounds(AppAccess app)
-	{
-		
-	}
-}

src/mightypork/rogue/audio/BaseAudioPlayer.java

@@ -1,4 +1,4 @@
-package mightypork.rogue.sounds;
+package mightypork.rogue.audio;
 
 
 import mightypork.utils.objects.Mutable;
@@ -7,7 +7,7 @@ import mightypork.utils.objects.Mutable;
 public abstract class BaseAudioPlayer {
 	
 	/** the track */
-	private AudioX audio;
+	private DeferredAudio audio;
 	
 	/** base gain for sfx */
 	private double baseGain = 1;
@@ -19,12 +19,12 @@ public abstract class BaseAudioPlayer {
 	private Mutable<Double> gainMultiplier = null;
 	
 	
-	public BaseAudioPlayer(AudioX track, double baseGain, Mutable<Double> gainMultiplier) {
+	public BaseAudioPlayer(DeferredAudio track, double baseGain, Mutable<Double> gainMultiplier) {
 		this(track, 1, baseGain, gainMultiplier);
 	}
 	
 	
-	public BaseAudioPlayer(AudioX track, double basePitch, double baseGain, Mutable<Double> gainMultiplier) {
+	public BaseAudioPlayer(DeferredAudio track, double basePitch, double baseGain, Mutable<Double> gainMultiplier) {
 		this.audio = track;
 		
 		this.baseGain = baseGain;
@@ -43,7 +43,7 @@ public abstract class BaseAudioPlayer {
 	}
 	
 	
-	protected AudioX getAudio()
+	protected DeferredAudio getAudio()
 	{
 		return audio;
 	}
@@ -66,7 +66,7 @@ public abstract class BaseAudioPlayer {
 	 * 
 	 * @return is valid
 	 */
-	protected boolean canPlay()
+	protected boolean hasAudio()
 	{
 		return (audio != null);
 	}
@@ -74,6 +74,6 @@ public abstract class BaseAudioPlayer {
 	
 	public void load()
 	{
-		if (canPlay()) audio.load();
+		if (hasAudio()) audio.load();
 	}
 }

src/mightypork/rogue/audio/DeferredAudio.java

@@ -1,6 +1,7 @@
-package mightypork.rogue.sounds;
+package mightypork.rogue.audio;
 
 
+import mightypork.rogue.Deferred;
 import mightypork.utils.control.interf.Destroyable;
 import mightypork.utils.files.FileUtils;
 import mightypork.utils.logging.Log;
@@ -15,7 +16,7 @@ import org.newdawn.slick.openal.SoundStore;
  * 
  * @author MightyPork
  */
-public class AudioX implements Destroyable {
+public class DeferredAudio implements Destroyable, Deferred {
 	
 	private enum PlayMode
 	{
@@ -39,7 +40,7 @@ public class AudioX implements Destroyable {
 	 * 
 	 * @param resourceName resource to load when needed
 	 */
-	public AudioX(String resourceName) {
+	public DeferredAudio(String resourceName) {
 		this.audio = null;
 		this.resourcePath = resourceName;
 	}
@@ -50,7 +51,7 @@ public class AudioX implements Destroyable {
 	 */
 	public void pauseLoop()
 	{
-		if (!load()) return;
+		if (!ensureLoaded()) return;
 		
 		if (isPlaying() && looping) {
 			pauseLoopPosition = audio.getPosition();
@@ -67,7 +68,7 @@ public class AudioX implements Destroyable {
 	 */
 	public int resumeLoop()
 	{
-		if (!load()) return -1;
+		if (!ensureLoaded()) return -1;
 		
 		int source = -1;
 		if (looping && paused) {
@@ -88,24 +89,32 @@ public class AudioX implements Destroyable {
 	 * 
 	 * @return resource is loaded
 	 */
-	private boolean isLoaded()
+	@Override
+	public boolean isLoaded()
 	{
 		return audio != null;
 	}
 	
 	
+	@Override
+	public void load()
+	{
+		ensureLoaded();
+	}
+	
+	
 	/**
 	 * Try to load if not loaded already
 	 * 
 	 * @return is loaded
 	 */
-	public boolean load()
+	protected boolean ensureLoaded()
 	{
 		if (isLoaded()) return true; // already loaded
-		if (loadFailed || resourcePath == null) return false; // not loaded, but
+		if (loadFailed || resourcePath == null) return false;
-																// can't load
+		
-																// anyway
+		Log.f3("Trying to load: " + resourcePath);
-			
+		
 		loadFailed = false;
 		try {
 			String ext = FileUtils.getExtension(resourcePath);
@@ -124,6 +133,8 @@ public class AudioX implements Destroyable {
 				loadFailed = true; // don't try next time
 			}
 			
+			if (!loadFailed) Log.f3("Audio loaded: " + resourcePath);
+			
 		} catch (Exception e) {
 			Log.e("Could not load " + resourcePath, e);
 			loadFailed = true; // don't try next time
@@ -201,7 +212,7 @@ public class AudioX implements Destroyable {
 	 */
 	public int playAsEffect(double pitch, double gain, boolean loop, double x, double y, double z)
 	{
-		if (!load()) return -1;
+		if (!ensureLoaded()) return -1;
 		
 		this.lastPlayPitch = pitch;
 		this.lastPlayGain = gain;
@@ -222,7 +233,7 @@ public class AudioX implements Destroyable {
 	 */
 	public int playAsEffect(double pitch, double gain, boolean loop, Coord pos)
 	{
-		if (!load()) return -1;
+		if (!ensureLoaded()) return -1;
 		
 		return playAsEffect(pitch, gain, loop, pos.x, pos.y, pos.z);
 	}
@@ -239,7 +250,7 @@ public class AudioX implements Destroyable {
 	 */
 	public int playAsMusic(double pitch, double gain, boolean loop)
 	{
-		if (!load()) return -1;
+		if (!ensureLoaded()) return -1;
 		
 		this.lastPlayPitch = (float) pitch;
 		this.lastPlayGain = (float) gain;
@@ -274,8 +285,8 @@ public class AudioX implements Destroyable {
 	{
 		if (this == obj) return true;
 		if (obj == null) return false;
-		if (!(obj instanceof AudioX)) return false;
+		if (!(obj instanceof DeferredAudio)) return false;
-		AudioX other = (AudioX) obj;
+		DeferredAudio other = (DeferredAudio) obj;
 		if (resourcePath == null) {
 			if (other.resourcePath != null) return false;
 		} else if (!resourcePath.equals(other.resourcePath)) {

src/mightypork/rogue/audio/EffectPlayer.java

@@ -1,4 +1,4 @@
-package mightypork.rogue.sounds;
+package mightypork.rogue.audio;
 
 
 import mightypork.utils.math.coord.Coord;
@@ -7,14 +7,14 @@ import mightypork.utils.objects.Mutable;
 
 public class EffectPlayer extends BaseAudioPlayer {
 	
-	public EffectPlayer(AudioX track, double basePitch, double baseGain, Mutable<Double> gainMultiplier) {
+	public EffectPlayer(DeferredAudio track, double basePitch, double baseGain, Mutable<Double> gainMultiplier) {
 		super(track, (float) basePitch, (float) baseGain, gainMultiplier);
 	}
 	
 	
 	public int play(double pitch, double gain)
 	{
-		if (!canPlay()) return -1;
+		if (!hasAudio()) return -1;
 		
 		return getAudio().playAsEffect(getPitch(pitch), getGain(gain), false);
 	}
@@ -28,7 +28,7 @@ public class EffectPlayer extends BaseAudioPlayer {
 	
 	public int play(double pitch, double gain, Coord pos)
 	{
-		if (!canPlay()) return -1;
+		if (!hasAudio()) return -1;
 		
 		return getAudio().playAsEffect(getPitch(pitch), getGain(gain), false, pos);
 	}

src/mightypork/rogue/audio/JointVolume.java

@@ -1,4 +1,4 @@
-package mightypork.rogue.sounds;
+package mightypork.rogue.audio;
 
 
 import mightypork.utils.math.Calc;

src/mightypork/rogue/audio/LoopPlayer.java

@@ -1,4 +1,4 @@
-package mightypork.rogue.sounds;
+package mightypork.rogue.audio;
 
 
 import mightypork.utils.control.interf.Updateable;
@@ -28,7 +28,7 @@ public class LoopPlayer extends BaseAudioPlayer implements Updateable, Pauseable
 	private double outTime = 1;
 	
 	
-	public LoopPlayer(AudioX track, double pitch, double baseGain, Mutable<Double> gainMultiplier) {
+	public LoopPlayer(DeferredAudio track, double pitch, double baseGain, Mutable<Double> gainMultiplier) {
 		super(track, (float) pitch, (float) baseGain, gainMultiplier);
 		
 		paused = true;
@@ -44,7 +44,7 @@ public class LoopPlayer extends BaseAudioPlayer implements Updateable, Pauseable
 	
 	private void initLoop()
 	{
-		if (!canPlay() && sourceID == -1) {
+		if (hasAudio() && sourceID == -1) {
 			sourceID = getAudio().playAsEffect(getPitch(1), getGain(1), true);
 			getAudio().pauseLoop();
 		}
@@ -54,7 +54,7 @@ public class LoopPlayer extends BaseAudioPlayer implements Updateable, Pauseable
 	@Override
 	public void pause()
 	{
-		if (!canPlay() || paused) return;
+		if (!hasAudio() || paused) return;
 		
 		initLoop();
 		
@@ -73,7 +73,7 @@ public class LoopPlayer extends BaseAudioPlayer implements Updateable, Pauseable
 	@Override
 	public void resume()
 	{
-		if (!canPlay() || paused) return;
+		if (!hasAudio() || !paused) return;
 		
 		initLoop();
 		
@@ -85,13 +85,13 @@ public class LoopPlayer extends BaseAudioPlayer implements Updateable, Pauseable
 	@Override
 	public void update(double delta)
 	{
-		if (!canPlay() || paused) return;
+		if (!hasAudio() || paused) return;
 		
 		initLoop();
 		
 		fadeAnim.update(delta);
 		
-		double gain = getGain(fadeAnim.getCurrentValue());
+		double gain = getGain(fadeAnim.now());
 		if (!paused && gain != lastUpdateGain) {
 			AL10.alSourcef(sourceID, AL10.AL_GAIN, (float) gain);
 			lastUpdateGain = gain;
@@ -103,7 +103,7 @@ public class LoopPlayer extends BaseAudioPlayer implements Updateable, Pauseable
 	
 	public void fadeIn(double secs)
 	{
-		if (!canPlay()) return;
+		if (!hasAudio()) return;
 		
 		resume();
 		fadeAnim.fadeIn(secs);
@@ -112,7 +112,7 @@ public class LoopPlayer extends BaseAudioPlayer implements Updateable, Pauseable
 	
 	public void fadeOut(double secs)
 	{
-		if (!canPlay()) return;
+		if (!hasAudio()) return;
 		
 		fadeAnim.fadeOut(secs);
 	}

src/mightypork/rogue/audio/NullAudio.java

@@ -0,0 +1,30 @@
+package mightypork.rogue.audio;
+
+
+public class NullAudio extends DeferredAudio {
+	
+	public NullAudio() {
+		super("");
+	}
+	
+	
+	@Override
+	public void load()
+	{
+	}
+	
+	
+	@Override
+	public boolean isLoaded()
+	{
+		return true;
+	}
+	
+	
+	@Override
+	protected boolean ensureLoaded()
+	{
+		return false;
+	}
+	
+}

src/mightypork/rogue/audio/SoundBank.java

@@ -0,0 +1,90 @@
+package mightypork.rogue.audio;
+
+
+import java.util.HashMap;
+import java.util.Map;
+
+import mightypork.rogue.AppAccess;
+import mightypork.rogue.AppAdapter;
+import mightypork.utils.logging.Log;
+
+
+public class SoundBank extends AppAdapter {
+	
+	private static final DeferredAudio NO_SOUND = new NullAudio();
+	private static final LoopPlayer NULL_LOOP = new LoopPlayer(NO_SOUND, 0, 0, null);
+	private static final EffectPlayer NULL_EFFECT = new EffectPlayer(NO_SOUND, 0, 0, null);
+	
+	private Map<String, EffectPlayer> effects = new HashMap<String, EffectPlayer>();
+	private Map<String, LoopPlayer> loops = new HashMap<String, LoopPlayer>();
+	
+	
+	public SoundBank(AppAccess app) {
+		super(app);
+		if (snd() == null) throw new NullPointerException("SoundSystem cannot be null.");
+	}
+	
+	
+	/**
+	 * Register effect resource
+	 * 
+	 * @param key sound key
+	 * @param resource resource path
+	 * @param pitch default pitch (1 = unchanged)
+	 * @param gain default gain (0-1)
+	 */
+	public void addEffect(String key, String resource, double pitch, double gain)
+	{
+		effects.put(key, snd().createEffect(resource, pitch, gain));
+	}
+	
+	
+	/**
+	 * Register loop resource (music / effect loop)
+	 * 
+	 * @param key sound key
+	 * @param resource resource path
+	 * @param pitch default pitch (1 = unchanged)
+	 * @param gain default gain (0-1)
+	 * @param fadeIn default time for fadeIn
+	 * @param fadeOut default time for fadeOut
+	 */
+	public void addLoop(String key, String resource, double pitch, double gain, double fadeIn, double fadeOut)
+	{
+		loops.put(key, snd().createLoop(resource, pitch, gain, fadeIn, fadeOut));
+	}
+	
+	
+	/**
+	 * Get a loop player for key
+	 * 
+	 * @param key sound key
+	 * @return loop player
+	 */
+	public LoopPlayer getLoop(String key)
+	{
+		LoopPlayer p = loops.get(key);
+		if (p == null) {
+			Log.w("Requesting unknown sound loop \"" + key + "\".");
+			return NULL_LOOP;
+		}
+		return p;
+	}
+	
+	
+	/**
+	 * Get a effect player for key
+	 * 
+	 * @param key sound key
+	 * @return effect player
+	 */
+	public EffectPlayer getEffect(String key)
+	{
+		EffectPlayer p = effects.get(key);
+		if (p == null) {
+			Log.w("Requesting unknown sound effect \"" + key + "\".");
+			return NULL_EFFECT;
+		}
+		return p;
+	}
+}

src/mightypork/rogue/audio/SoundSystem.java

@@ -1,16 +1,13 @@
-package mightypork.rogue.sounds;
+package mightypork.rogue.audio;
 
 
 import java.nio.FloatBuffer;
-import java.util.HashMap;
 import java.util.HashSet;
-import java.util.Map;
 import java.util.Set;
 
 import mightypork.rogue.AppAccess;
 import mightypork.rogue.bus.Subsystem;
 import mightypork.utils.control.interf.Updateable;
-import mightypork.utils.logging.Log;
 import mightypork.utils.math.Calc.Buffers;
 import mightypork.utils.math.coord.Coord;
 import mightypork.utils.objects.Mutable;
@@ -30,9 +27,6 @@ public class SoundSystem extends Subsystem implements Updateable {
 	
 	private static final Coord INITIAL_LISTENER_POS = new Coord(0, 0, 0);
 	private static final int MAX_SOURCES = 256;
-	private static final AudioX NO_SOUND = new NullAudio();
-	private static final LoopPlayer NULL_LOOP = new LoopPlayer(NO_SOUND, 0, 0, null);
-	private static final EffectPlayer NULL_EFFECT = new EffectPlayer(NO_SOUND, 0, 0, null);
 	
 	private static Coord listener = new Coord();
 	
@@ -67,15 +61,20 @@ public class SoundSystem extends Subsystem implements Updateable {
 		buf3 = buf6 = null;
 	}
 	
+	
+	public static Coord getListener()
+	{
+		return listener;
+	}
+	
 	// -- instance --
 	
 	public Mutable<Double> masterVolume = new Mutable<Double>(1D);
 	public Mutable<Double> effectsVolume = new JointVolume(masterVolume);
 	public Mutable<Double> loopsVolume = new JointVolume(masterVolume);
 	
-	private Map<String, EffectPlayer> effects = new HashMap<String, EffectPlayer>();
+	private Set<LoopPlayer> loopPlayers = new HashSet<LoopPlayer>();
-	private Map<String, LoopPlayer> loops = new HashMap<String, LoopPlayer>();
+	private Set<DeferredAudio> resources = new HashSet<DeferredAudio>();
-	private Set<AudioX> resources = new HashSet<AudioX>();
 	
 	
 	public SoundSystem(AppAccess app) {
@@ -86,7 +85,7 @@ public class SoundSystem extends Subsystem implements Updateable {
 	@Override
 	public final void deinit()
 	{
-		for (AudioX r : resources) {
+		for (DeferredAudio r : resources) {
 			r.destroy();
 		}
 		
@@ -98,191 +97,83 @@ public class SoundSystem extends Subsystem implements Updateable {
 	@Override
 	public void update(double delta)
 	{
-		for (LoopPlayer lp : loops.values()) {
+		for (Updateable lp : loopPlayers) {
 			lp.update(delta);
 		}
 	}
 	
 	
-	public static Coord getListener()
-	{
-		return listener;
-	}
-	
-	
 	/**
-	 * Register effect resource
+	 * Create effect resource
 	 * 
-	 * @param key sound key
 	 * @param resource resource path
 	 * @param pitch default pitch (1 = unchanged)
 	 * @param gain default gain (0-1)
+	 * @return player
 	 */
-	public void addEffect(String key, String resource, double pitch, double gain)
+	public EffectPlayer createEffect(String resource, double pitch, double gain)
 	{
-		EffectPlayer p = new EffectPlayer(getResource(resource), pitch, gain, effectsVolume);
+		return new EffectPlayer(getResource(resource), pitch, gain, effectsVolume);
-		effects.put(key, p);
 	}
 	
 	
 	/**
 	 * Register loop resource (music / effect loop)
 	 * 
-	 * @param key sound key
 	 * @param resource resource path
 	 * @param pitch default pitch (1 = unchanged)
 	 * @param gain default gain (0-1)
 	 * @param fadeIn default time for fadeIn
 	 * @param fadeOut default time for fadeOut
+	 * @return player
 	 */
-	public void addLoop(String key, String resource, double pitch, double gain, double fadeIn, double fadeOut)
+	public LoopPlayer createLoop(String resource, double pitch, double gain, double fadeIn, double fadeOut)
 	{
 		LoopPlayer p = new LoopPlayer(getResource(resource), pitch, gain, loopsVolume);
 		p.setFadeTimes(fadeIn, fadeOut);
-		loops.put(key, p);
+		loopPlayers.add(p);
+		return p;
 	}
 	
 	
 	/**
-	 * Create {@link AudioX} for a resource
+	 * Create {@link DeferredAudio} for a resource
 	 * 
 	 * @param res a resource name
 	 * @return the resource
 	 * @throws IllegalArgumentException if resource is already registered
 	 */
-	private AudioX getResource(String res)
+	private DeferredAudio getResource(String res)
 	{
-		AudioX a = new AudioX(res);
+		DeferredAudio a = new DeferredAudio(res);
 		if (resources.contains(a)) throw new IllegalArgumentException("Sound resource " + res + " is already registered.");
 		resources.add(a);
 		return a;
 	}
 	
 	
-	/**
-	 * Get a loop player for key
-	 * 
-	 * @param key sound key
-	 * @return loop player
-	 */
-	public LoopPlayer getLoop(String key)
-	{
-		LoopPlayer p = loops.get(key);
-		if (p == null) {
-			Log.w("Requesting unknown sound loop \"" + key + "\".");
-			return NULL_LOOP;
-		}
-		return p;
-	}
-	
-	
-	/**
-	 * Get a effect player for key
-	 * 
-	 * @param key sound key
-	 * @return effect player
-	 */
-	public EffectPlayer getEffect(String key)
-	{
-		EffectPlayer p = effects.get(key);
-		if (p == null) {
-			Log.w("Requesting unknown sound effect \"" + key + "\".");
-			return NULL_EFFECT;
-		}
-		return p;
-	}
-	
-	
 	/**
 	 * Fade out all loops (ie. for screen transitions)
 	 */
 	public void fadeOutAllLoops()
 	{
-		for (LoopPlayer p : loops.values()) {
+		for (LoopPlayer p : loopPlayers) {
 			p.fadeOut();
 		}
 	}
 	
 	
-	/**
-	 * Fade in a loop (with default time)
-	 * 
-	 * @param key sound key
-	 */
-	public void fadeInLoop(String key)
-	{
-		getLoop(key).fadeIn();
-	}
-	
-	
-	/**
-	 * Fade in a loop
-	 * 
-	 * @param key sound key
-	 * @param seconds fade-in duration
-	 */
-	public void fadeInLoop(String key, double seconds)
-	{
-		getLoop(key).fadeIn(seconds);
-	}
-	
-	
-	/**
-	 * Fade out a loop (with default time)
-	 * 
-	 * @param key sound key
-	 */
-	public void fadeOutLoop(String key)
-	{
-		getLoop(key).fadeOut();
-	}
-	
-	
-	/**
-	 * Fade out a loop
-	 * 
-	 * @param key sound key
-	 * @param seconds fade-out duration
-	 */
-	public void fadeOutLoop(String key, double seconds)
-	{
-		getLoop(key).fadeOut(seconds);
-	}
-	
-	
-	/**
-	 * Pause a loop
-	 * 
-	 * @param key sound key
-	 */
-	public void pauseLoop(String key)
-	{
-		getLoop(key).pause();
-	}
-	
-	
 	/**
 	 * Pause all loops (leave volume unchanged)
 	 */
 	public void pauseAllLoops()
 	{
-		for (LoopPlayer p : loops.values()) {
+		for (LoopPlayer p : loopPlayers) {
 			p.pause();
 		}
 	}
 	
 	
-	/**
-	 * Resume a loop
-	 * 
-	 * @param key sound key
-	 */
-	public void resumeLoop(String key)
-	{
-		getLoop(key).resume();
-	}
-	
-	
 	/**
 	 * Set level of master volume
 	 * 

src/mightypork/rogue/bus/ChildClient.java

@@ -10,6 +10,7 @@ import mightypork.rogue.AppAdapter;
 import mightypork.utils.control.bus.EventBus;
 import mightypork.utils.control.bus.clients.DelegatingClient;
 import mightypork.utils.control.bus.clients.ToggleableClient;
+import mightypork.utils.logging.Log;
 
 
 /**
@@ -57,8 +58,10 @@ public class ChildClient extends AppAdapter implements DelegatingClient, Togglea
 	 */
 	public final void addChildClient(Object client)
 	{
-		if (client != null) {
+		if (bus().isClientValid(client)) {
 			clients.add(client);
+		} else {
+			Log.w("Client rejected by bus: " + client.getClass().getSimpleName());
 		}
 	}
 	

src/mightypork/rogue/bus/events/ActionRequest.java

@@ -0,0 +1,33 @@
+package mightypork.rogue.bus.events;
+
+
+import mightypork.utils.control.bus.Event;
+
+
+/**
+ * Request for action that should be performed in the main thread.
+ * 
+ * @author MightyPork
+ */
+public class ActionRequest implements Event<ActionRequest.Listener> {
+	
+	private RequestType type;
+	
+	
+	public ActionRequest(RequestType request) {
+		type = request;
+	}
+	
+	
+	@Override
+	public void handleBy(Listener handler)
+	{
+		handler.requestAction(type);
+	}
+	
+	public interface Listener {
+		
+		public void requestAction(RequestType request);
+	}
+	
+}

src/mightypork/rogue/bus/events/KeyboardEvent.java

@@ -1,7 +1,7 @@
 package mightypork.rogue.bus.events;
 
 
-import mightypork.utils.control.bus.Handleable;
+import mightypork.utils.control.bus.Event;
 
 import org.lwjgl.input.Keyboard;
 
@@ -11,7 +11,7 @@ import org.lwjgl.input.Keyboard;
  * 
  * @author MightyPork
  */
-public class KeyboardEvent implements Handleable<KeyboardEvent.Listener> {
+public class KeyboardEvent implements Event<KeyboardEvent.Listener> {
 	
 	private int key;
 	private boolean down;

src/mightypork/rogue/bus/events/MouseButtonEvent.java

@@ -1,7 +1,7 @@
 package mightypork.rogue.bus.events;
 
 
-import mightypork.utils.control.bus.Handleable;
+import mightypork.utils.control.bus.Event;
 import mightypork.utils.math.coord.Coord;
 
 
@@ -10,7 +10,7 @@ import mightypork.utils.math.coord.Coord;
  * 
  * @author MightyPork
  */
-public class MouseButtonEvent implements Handleable<MouseButtonEvent.Listener> {
+public class MouseButtonEvent implements Event<MouseButtonEvent.Listener> {
 	
 	public static final int BUTTON_LEFT = 0;
 	public static final int BUTTON_MIDDLE = 1;

src/mightypork/rogue/bus/events/MouseMotionEvent.java

@@ -1,11 +1,11 @@
 package mightypork.rogue.bus.events;
 
 
-import mightypork.utils.control.bus.Handleable;
+import mightypork.utils.control.bus.Event;
 import mightypork.utils.math.coord.Coord;
 
 
-public class MouseMotionEvent implements Handleable<MouseMotionEvent.Listener> {
+public class MouseMotionEvent implements Event<MouseMotionEvent.Listener> {
 	
 	private Coord move;
 	private Coord pos;
@@ -20,7 +20,7 @@ public class MouseMotionEvent implements Handleable<MouseMotionEvent.Listener> {
 	/**
 	 * @return movement since last {@link MouseMotionEvent}
 	 */
-	public Coord getPosDelta()
+	public Coord getMove()
 	{
 		return move;
 	}

src/mightypork/rogue/bus/events/RequestType.java

@@ -0,0 +1,7 @@
+package mightypork.rogue.bus.events;
+
+
+public enum RequestType
+{
+	FULLSCREEN, SCREENSHOT, SHUTDOWN;
+}

src/mightypork/rogue/bus/events/ScreenChangeEvent.java

@@ -1,11 +1,11 @@
 package mightypork.rogue.bus.events;
 
 
-import mightypork.utils.control.bus.Handleable;
+import mightypork.utils.control.bus.Event;
 import mightypork.utils.math.coord.Coord;
 
 
-public class ScreenChangeEvent implements Handleable<ScreenChangeEvent.Listener> {
+public class ScreenChangeEvent implements Event<ScreenChangeEvent.Listener> {
 	
 	private boolean fullscreen;
 	private Coord screenSize;

src/mightypork/rogue/bus/events/ScreenRequestEvent.java

@@ -0,0 +1,28 @@
+package mightypork.rogue.bus.events;
+
+
+import mightypork.utils.control.bus.Event;
+
+
+public class ScreenRequestEvent implements Event<ScreenRequestEvent.Listener> {
+	
+	private String scrName;
+	
+	
+	public ScreenRequestEvent(String screenKey) {
+		scrName = screenKey;
+	}
+	
+	
+	@Override
+	public void handleBy(Listener handler)
+	{
+		handler.showScreen(scrName);
+	}
+	
+	public interface Listener {
+		
+		public void showScreen(String key);
+	}
+	
+}

src/mightypork/rogue/display/screens/ScreenRegistry.java

@@ -1,22 +0,0 @@
-package mightypork.rogue.display.screens;
-
-
-import mightypork.rogue.AppAccess;
-import mightypork.rogue.bus.Subsystem;
-
-
-public class ScreenRegistry extends Subsystem {
-	
-	public ScreenRegistry(AppAccess app) {
-		super(app);
-	}
-	
-	
-	@Override
-	protected void deinit()
-	{
-		// TODO Auto-generated method stub
-		
-	}
-	
-}

src/mightypork/rogue/display/screens/screenTextures/ScreenTextureTest.java

@@ -1,6 +0,0 @@
-package mightypork.rogue.display.screens.screenTextures;
-
-
-public class ScreenTextureTest {
-	
-}

src/mightypork/rogue/gui/constraints/ElementHolder.java

@@ -1,4 +1,4 @@
-package mightypork.rogue.display.constraints;
+package mightypork.rogue.gui.constraints;
 
 
 import java.util.LinkedList;

src/mightypork/rogue/gui/constraints/Renderable.java

@@ -1,4 +1,4 @@
-package mightypork.rogue.display.constraints;
+package mightypork.rogue.gui.constraints;
 
 
 /**

src/mightypork/rogue/gui/constraints/RenderableWithContext.java

@@ -1,4 +1,4 @@
-package mightypork.rogue.display.constraints;
+package mightypork.rogue.gui.constraints;
 
 
 import mightypork.utils.math.constraints.ConstraintContext;

src/mightypork/rogue/gui/screens/LayeredScreen.java

@@ -1,4 +1,4 @@
-package mightypork.rogue.display;
+package mightypork.rogue.gui.screens;
 
 
 import java.util.LinkedList;

src/mightypork/rogue/gui/screens/Screen.java

@@ -1,13 +1,15 @@
-package mightypork.rogue.display;
+package mightypork.rogue.gui.screens;
 
 
 import static org.lwjgl.opengl.GL11.*;
 import mightypork.rogue.AppAccess;
-import mightypork.rogue.bus.Subsystem;
+import mightypork.rogue.bus.ChildClient;
 import mightypork.rogue.bus.events.ScreenChangeEvent;
 import mightypork.rogue.input.KeyBinder;
 import mightypork.rogue.input.KeyBindingPool;
 import mightypork.rogue.input.KeyStroke;
+import mightypork.rogue.render.Render;
+import mightypork.utils.control.interf.Destroyable;
 import mightypork.utils.control.interf.Updateable;
 import mightypork.utils.math.constraints.ConstraintContext;
 import mightypork.utils.math.coord.Coord;
@@ -21,11 +23,13 @@ import mightypork.utils.math.coord.Rect;
  * 
  * @author MightyPork
  */
-public abstract class Screen extends Subsystem implements Updateable, KeyBinder, ConstraintContext, ScreenChangeEvent.Listener {
+public abstract class Screen extends ChildClient implements Destroyable, Updateable, KeyBinder, ConstraintContext, ScreenChangeEvent.Listener {
 	
 	private final KeyBindingPool keybindings = new KeyBindingPool();
 	
 	private boolean active;
+	private boolean needSetupGraphics = false;
+	private boolean needSetupViewport = false;
 	
 	
 	public Screen(AppAccess app) {
@@ -53,7 +57,7 @@ public abstract class Screen extends Subsystem implements Updateable, KeyBinder,
 	
 	
 	@Override
-	protected final void deinit()
+	public final void destroy()
 	{
 		deinitScreen();
 	}
@@ -68,8 +72,9 @@ public abstract class Screen extends Subsystem implements Updateable, KeyBinder,
 	{
 		if (shown) {
 			active = true;
-			setupGraphics();
+			needSetupGraphics = true;
-			setupViewport();
+			needSetupViewport = true;
+			
 			onSizeChanged(getRect().getSize());
 			onScreenEnter();
 			
@@ -130,51 +135,12 @@ public abstract class Screen extends Subsystem implements Updateable, KeyBinder,
 	protected abstract void updateScreen(double delta);
 	
 	
-	private void setupGraphics()
-	{
-		glMatrixMode(GL_MODELVIEW);
-		glLoadIdentity();
-		
-		glDisable(GL_LIGHTING);
-		
-		glClearDepth(1f);
-		glEnable(GL_DEPTH_TEST);
-		glDepthFunc(GL_LEQUAL);
-		
-		glEnable(GL_NORMALIZE);
-		
-		glShadeModel(GL_SMOOTH);
-		
-		glEnable(GL_BLEND);
-		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-		
-		glDisable(GL_TEXTURE_2D);
-		
-		setupViewport();
-	}
-	
-	
-	private void setupViewport()
-	{
-		// fix projection for changed size
-		glMatrixMode(GL_PROJECTION);
-		glLoadIdentity();
-		Coord s = disp().getSize();
-		glViewport(0, 0, s.xi(), s.yi());
-		glOrtho(0, s.x, 0, s.y, -1000, 1000);
-		
-		// back to modelview
-		glMatrixMode(GL_MODELVIEW);
-	}
-	
-	
 	/**
 	 * Render screen
 	 */
 	private void renderBegin()
 	{
-		glPushAttrib(GL_ENABLE_BIT);
+		Render.pushState();
-		glPushMatrix();
 	}
 	
 	
@@ -183,8 +149,7 @@ public abstract class Screen extends Subsystem implements Updateable, KeyBinder,
 	 */
 	private void renderEnd()
 	{
-		glPopAttrib();
+		Render.popState();
-		glPopMatrix();
 	}
 	
 	
@@ -202,9 +167,9 @@ public abstract class Screen extends Subsystem implements Updateable, KeyBinder,
 	{
 		if (!isActive()) return;
 		
-		setupViewport();
-		
 		onSizeChanged(event.getScreenSize());
+		
+		needSetupViewport = true;
 	}
 	
 	
@@ -215,6 +180,27 @@ public abstract class Screen extends Subsystem implements Updateable, KeyBinder,
 	public final void update(double delta)
 	{
 		updateScreen(delta);
+	}
+	
+	
+	@Override
+	public final Rect getRect()
+	{
+		return disp().getRect();
+	}
+	
+	
+	public final void render()
+	{
+		if (!isActive()) return;
+		
+		if (needSetupGraphics) {
+			setupGraphics();
+		}
+		
+		if (needSetupViewport) {
+			setupViewport();
+		}
 		
 		renderBegin();
 		renderScreen();
@@ -222,10 +208,37 @@ public abstract class Screen extends Subsystem implements Updateable, KeyBinder,
 	}
 	
 	
-	@Override
+	private void setupGraphics()
-	public final Rect getRect()
 	{
-		return disp().getRect();
+		glMatrixMode(GL_MODELVIEW);
+		glLoadIdentity();
+		
+		glDisable(GL_LIGHTING);
+		
+		glClearDepth(1f);
+		glEnable(GL_DEPTH_TEST);
+		glDepthFunc(GL_LEQUAL);
+		
+		glEnable(GL_NORMALIZE);
+		
+		glShadeModel(GL_SMOOTH);
+		
+		glEnable(GL_BLEND);
+		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+	}
+	
+	
+	private void setupViewport()
+	{
+		// fix projection for changed size
+		glMatrixMode(GL_PROJECTION);
+		glLoadIdentity();
+		Coord s = disp().getSize();
+		glViewport(0, 0, s.xi(), s.yi());
+		glOrtho(0, s.x, s.y, 0, -1000, 1000);
+		
+		// back to modelview
+		glMatrixMode(GL_MODELVIEW);
 	}
 	
 }

src/mightypork/rogue/gui/screens/ScreenLayer.java

@@ -1,8 +1,8 @@
-package mightypork.rogue.display;
+package mightypork.rogue.gui.screens;
 
 
 import mightypork.rogue.bus.ChildClient;
-import mightypork.rogue.display.constraints.Renderable;
+import mightypork.rogue.gui.constraints.Renderable;
 import mightypork.utils.control.interf.Updateable;
 import mightypork.utils.math.constraints.ConstraintContext;
 import mightypork.utils.math.coord.Rect;

src/mightypork/rogue/gui/screens/ScreenRegistry.java

@@ -0,0 +1,55 @@
+package mightypork.rogue.gui.screens;
+
+
+import java.util.HashMap;
+
+import mightypork.rogue.AppAccess;
+import mightypork.rogue.bus.Subsystem;
+import mightypork.rogue.bus.events.ScreenRequestEvent;
+
+
+public class ScreenRegistry extends Subsystem implements ScreenRequestEvent.Listener {
+	
+	private HashMap<String, Screen> screens = new HashMap<String, Screen>();
+	private Screen active = null;
+	
+	
+	public ScreenRegistry(AppAccess app) {
+		super(app);
+	}
+	
+	
+	public void add(String key, Screen screen)
+	{
+		screens.put(key, screen);
+		addChildClient(screen);
+	}
+	
+	
+	@Override
+	public void showScreen(String key)
+	{
+		Screen toshow = screens.get(key);
+		if (toshow == null) throw new RuntimeException("Screen " + key + " not defined.");
+		
+		if (active != null) active.setActive(false);
+		
+		toshow.setActive(true);
+		
+		active = toshow;
+	}
+	
+	
+	public void render()
+	{
+		if (active != null) active.render();
+	}
+	
+	
+	@Override
+	protected void deinit()
+	{
+		// no impl
+	}
+	
+}

src/mightypork/rogue/gui/screens/screenBouncy/BouncyBox.java

@@ -1,12 +1,12 @@
-package mightypork.rogue.display.screens.screenBouncy;
+package mightypork.rogue.gui.screens.screenBouncy;
 
 
 import static mightypork.utils.math.constraints.ConstraintFactory.*;
 
 import java.util.Random;
 
-import mightypork.rogue.display.constraints.RenderableWithContext;
+import mightypork.rogue.gui.constraints.RenderableWithContext;
-import mightypork.rogue.textures.Render;
+import mightypork.rogue.render.Render;
 import mightypork.utils.control.interf.Updateable;
 import mightypork.utils.math.animation.AnimDouble;
 import mightypork.utils.math.animation.Easing;
@@ -55,7 +55,7 @@ public class BouncyBox implements RenderableWithContext, Updateable, ConstraintC
 	@Override
 	public void render()
 	{
-		Render.quadRect(box.getRect(), RGB.GREEN);
+		Render.quad(box.getRect(), RGB.GREEN);
 	}
 	
 	

src/mightypork/rogue/gui/screens/screenBouncy/LayerBouncyBoxes.java

@@ -1,4 +1,4 @@
-package mightypork.rogue.display.screens.screenBouncy;
+package mightypork.rogue.gui.screens.screenBouncy;
 
 
 import static mightypork.utils.math.constraints.ConstraintFactory.*;
@@ -6,9 +6,9 @@ import static mightypork.utils.math.constraints.ConstraintFactory.*;
 import java.util.ArrayList;
 import java.util.List;
 
-import mightypork.rogue.display.Screen;
+import mightypork.rogue.gui.constraints.ElementHolder;
-import mightypork.rogue.display.ScreenLayer;
+import mightypork.rogue.gui.screens.Screen;
-import mightypork.rogue.display.constraints.ElementHolder;
+import mightypork.rogue.gui.screens.ScreenLayer;
 import mightypork.utils.math.constraints.RectConstraint;
 
 

src/mightypork/rogue/gui/screens/screenBouncy/ScreenTestAnim.java

@@ -1,19 +1,19 @@
-package mightypork.rogue.display.screens.screenBouncy;
+package mightypork.rogue.gui.screens.screenBouncy;
 
 
 import mightypork.rogue.AppAccess;
-import mightypork.rogue.display.LayeredScreen;
+import mightypork.rogue.gui.screens.LayeredScreen;
 import mightypork.rogue.input.KeyStroke;
 
 import org.lwjgl.input.Keyboard;
 
 
-public class TestLayeredScreen extends LayeredScreen {
+public class ScreenTestAnim extends LayeredScreen {
 	
 	private LayerBouncyBoxes layer;
 	
 	
-	public TestLayeredScreen(AppAccess app) {
+	public ScreenTestAnim(AppAccess app) {
 		super(app);
 		
 		layer = new LayerBouncyBoxes(this);

src/mightypork/rogue/gui/screens/screenTextures/ScreenTextureTest.java

@@ -0,0 +1,104 @@
+package mightypork.rogue.gui.screens.screenTextures;
+
+
+import static mightypork.utils.math.constraints.ConstraintFactory.*;
+
+import java.util.Random;
+
+import mightypork.rogue.AppAccess;
+import mightypork.rogue.Res;
+import mightypork.rogue.bus.events.ActionRequest;
+import mightypork.rogue.bus.events.MouseButtonEvent;
+import mightypork.rogue.bus.events.RequestType;
+import mightypork.rogue.gui.screens.Screen;
+import mightypork.rogue.input.KeyStroke;
+import mightypork.rogue.render.Render;
+import mightypork.utils.math.animation.AnimDouble;
+import mightypork.utils.math.animation.Easing;
+import mightypork.utils.math.constraints.RectConstraint;
+import mightypork.utils.math.coord.Coord;
+
+import org.lwjgl.input.Keyboard;
+
+
+public class ScreenTextureTest extends Screen implements MouseButtonEvent.Listener {
+	
+	private RectConstraint kittenbox;
+	
+	private AnimDouble s = new AnimDouble(400, Easing.SINE_BOTH);
+	private AnimDouble x = new AnimDouble(200, Easing.ELASTIC_OUT);
+	private AnimDouble y = new AnimDouble(200, Easing.ELASTIC_OUT);
+	
+	private Random rand = new Random();
+	
+	
+	public ScreenTextureTest(AppAccess app) {
+		super(app);
+		
+		kittenbox = c_move(c_box_sized(this, c_n(s), c_n(s)), c_n(x), c_n(y));
+		
+		bindKeyStroke(new KeyStroke(Keyboard.KEY_ESCAPE), new Runnable() {
+			
+			@Override
+			public void run()
+			{
+				snd().fadeOutAllLoops();
+				bus().schedule(new ActionRequest(RequestType.SHUTDOWN), 3);
+			}
+		});
+	}
+	
+	
+	@Override
+	protected void deinitScreen()
+	{
+	}
+	
+	
+	@Override
+	protected void onScreenEnter()
+	{
+		System.out.println("YOLO");
+		Res.getLoop("test.wilderness").fadeIn();
+	}
+	
+	
+	@Override
+	protected void onScreenLeave()
+	{
+	}
+	
+	
+	@Override
+	protected void renderScreen()
+	{
+		Render.quadTextured(kittenbox.getRect(), Res.getTexture("test.kitten"));
+	}
+	
+	
+	@Override
+	protected void updateScreen(double delta)
+	{
+		s.update(delta);
+		x.update(delta);
+		y.update(delta);
+	}
+	
+	
+	@Override
+	public void receive(MouseButtonEvent event)
+	{
+		if (!event.isDown()) return;
+		
+		Coord pos = event.getPos();
+		
+		double newSize = 200 + rand.nextInt(600);
+		
+		double t = 2;
+		
+		s.fadeTo(newSize, t / 2D);
+		x.fadeTo(pos.x - newSize / 2D, t);
+		y.fadeTo(pos.y - newSize / 2D, t);
+	}
+	
+}

src/mightypork/rogue/input/InputSystem.java

@@ -3,9 +3,11 @@ package mightypork.rogue.input;
 
 import mightypork.rogue.AppAccess;
 import mightypork.rogue.bus.Subsystem;
+import mightypork.rogue.bus.events.ActionRequest;
 import mightypork.rogue.bus.events.KeyboardEvent;
 import mightypork.rogue.bus.events.MouseButtonEvent;
 import mightypork.rogue.bus.events.MouseMotionEvent;
+import mightypork.rogue.bus.events.RequestType;
 import mightypork.utils.control.interf.Updateable;
 import mightypork.utils.math.coord.Coord;
 
@@ -19,6 +21,7 @@ public class InputSystem extends Subsystem implements Updateable, KeyBinder {
 	
 	// listeners
 	private KeyBindingPool keybindings;
+	private boolean yAxisDown = true;
 	
 	
 	public InputSystem(AppAccess app) {
@@ -26,8 +29,6 @@ public class InputSystem extends Subsystem implements Updateable, KeyBinder {
 		
 		initDevices();
 		
-		initChannels();
-		
 		// global keybindings
 		keybindings = new KeyBindingPool();
 		addChildClient(keybindings);
@@ -54,14 +55,6 @@ public class InputSystem extends Subsystem implements Updateable, KeyBinder {
 	}
 	
 	
-	private void initChannels()
-	{
-		bus().createChannel(KeyboardEvent.class, KeyboardEvent.Listener.class);
-		bus().createChannel(MouseMotionEvent.class, MouseMotionEvent.Listener.class);
-		bus().createChannel(MouseButtonEvent.class, MouseButtonEvent.Listener.class);
-	}
-	
-	
 	@Override
 	public final void bindKeyStroke(KeyStroke stroke, Runnable task)
 	{
@@ -79,19 +72,35 @@ public class InputSystem extends Subsystem implements Updateable, KeyBinder {
 	@Override
 	public void update(double delta)
 	{
+		// was destroyed
+		if (!Display.isCreated()) return;
+		if (!Mouse.isCreated()) return;
+		if (!Keyboard.isCreated()) return;
+		
 		Display.processMessages();
 		
+		Coord moveSum = Coord.zero();
+		Coord lastPos = Coord.zero();
+		boolean wasMouse = false;
+		
 		while (Mouse.next()) {
-			onMouseEvent();
+			onMouseEvent(moveSum, lastPos);
+			wasMouse = true;
 		}
 		
+		if (wasMouse && !moveSum.isZero()) bus().queue(new MouseMotionEvent(lastPos, moveSum));
+		
 		while (Keyboard.next()) {
 			onKeyEvent();
 		}
+		
+		if (Display.isCloseRequested()) {
+			bus().queue(new ActionRequest(RequestType.SHUTDOWN));
+		}
 	}
 	
 	
-	private void onMouseEvent()
+	private void onMouseEvent(Coord moveSum, Coord lastPos)
 	{
 		int button = Mouse.getEventButton();
 		boolean down = Mouse.getEventButtonState();
@@ -99,8 +108,17 @@ public class InputSystem extends Subsystem implements Updateable, KeyBinder {
 		Coord move = new Coord(Mouse.getEventDX(), Mouse.getEventDY());
 		int wheeld = Mouse.getEventDWheel();
 		
-		if (button != -1 || wheeld != 0) bus().broadcast(new MouseButtonEvent(pos, button, down, wheeld));
+		if (yAxisDown) {
-		if (!move.isZero()) bus().broadcast(new MouseMotionEvent(pos, move));
+			flipScrY(pos);
+			move.mul_ip(1, -1, 1);
+		}
+		
+		if (button != -1 || wheeld != 0) {
+			bus().queue(new MouseButtonEvent(pos, button, down, wheeld));
+		}
+		
+		moveSum.add_ip(move);
+		lastPos.setTo(pos);
 	}
 	
 	
@@ -109,6 +127,14 @@ public class InputSystem extends Subsystem implements Updateable, KeyBinder {
 		int key = Keyboard.getEventKey();
 		boolean down = Keyboard.getEventKeyState();
 		char c = Keyboard.getEventCharacter();
-		bus().broadcast(new KeyboardEvent(key, c, down));
+		bus().queue(new KeyboardEvent(key, c, down));
+	}
+	
+	
+	private void flipScrY(Coord c)
+	{
+		if (disp() != null) {
+			c.setY_ip(disp().getSize().y - c.y);
+		}
 	}
 }

src/mightypork/rogue/render/DisplaySystem.java

@@ -1,4 +1,4 @@
-package mightypork.rogue.display;
+package mightypork.rogue.render;
 
 
 import static org.lwjgl.opengl.GL11.*;
@@ -27,8 +27,6 @@ public class DisplaySystem extends Subsystem implements ConstraintContext {
 	
 	public DisplaySystem(AppAccess app) {
 		super(app);
-		
-		initChannels();
 	}
 	
 	
@@ -39,15 +37,6 @@ public class DisplaySystem extends Subsystem implements ConstraintContext {
 	}
 	
 	
-	/**
-	 * Initialize event channels
-	 */
-	private void initChannels()
-	{
-		bus().createChannel(ScreenChangeEvent.class, ScreenChangeEvent.Listener.class);
-	}
-	
-	
 	public void setTargetFps(int fps)
 	{
 		this.targetFps = fps;
@@ -94,7 +83,7 @@ public class DisplaySystem extends Subsystem implements ConstraintContext {
 				Display.update();
 			}
 			
-			bus().broadcast(new ScreenChangeEvent(true, Display.isFullscreen(), getSize()));
+			bus().queue(new ScreenChangeEvent(true, Display.isFullscreen(), getSize()));
 			
 		} catch (Throwable t) {
 			Log.e("Failed to toggle fullscreen mode.", t);
@@ -162,7 +151,7 @@ public class DisplaySystem extends Subsystem implements ConstraintContext {
 	{
 		// handle resize
 		if (Display.wasResized()) {
-			bus().broadcast(new ScreenChangeEvent(false, Display.isFullscreen(), getSize()));
+			bus().queue(new ScreenChangeEvent(false, Display.isFullscreen(), getSize()));
 		}
 		
 		glLoadIdentity();

src/mightypork/rogue/render/Render.java

@@ -0,0 +1,349 @@
+package mightypork.rogue.render;
+
+
+import static org.lwjgl.opengl.GL11.*;
+
+import java.io.IOException;
+
+import mightypork.rogue.render.textures.TxQuad;
+import mightypork.utils.files.FileUtils;
+import mightypork.utils.logging.Log;
+import mightypork.utils.math.color.RGB;
+import mightypork.utils.math.coord.Coord;
+import mightypork.utils.math.coord.Rect;
+
+import org.newdawn.slick.opengl.SlickCallable;
+import org.newdawn.slick.opengl.Texture;
+import org.newdawn.slick.opengl.TextureImpl;
+import org.newdawn.slick.opengl.TextureLoader;
+import org.newdawn.slick.util.ResourceLoader;
+
+
+/**
+ * Render utilities
+ * 
+ * @author MightyPork
+ */
+public class Render {
+	
+	private static final Coord AXIS_X = new Coord(1, 0, 0);
+	private static final Coord AXIS_Y = new Coord(0, 1, 0);
+	private static final Coord AXIS_Z = new Coord(0, 0, 1);
+	
+	private static boolean inited = false;
+	
+	
+	/**
+	 * Bind GL color
+	 * 
+	 * @param color RGB color
+	 */
+	public static void setColor(RGB color)
+	{
+		if (color != null) glColor4d(color.r, color.g, color.b, color.a);
+	}
+	
+	
+	/**
+	 * Bind GL color
+	 * 
+	 * @param color RGB color
+	 * @param alpha alpha multiplier
+	 */
+	public static void setColor(RGB color, double alpha)
+	{
+		if (color != null) glColor4d(color.r, color.g, color.b, color.a * alpha);
+	}
+	
+	
+	/**
+	 * Translate with coord
+	 * 
+	 * @param coord coord
+	 */
+	public static void translate(Coord coord)
+	{
+		glTranslated(coord.x, coord.y, coord.z);
+	}
+	
+	
+	public static void rotateX(double angle)
+	{
+		rotate(angle, AXIS_X);
+	}
+	
+	
+	public static void rotateY(double angle)
+	{
+		rotate(angle, AXIS_Y);
+	}
+	
+	
+	public static void rotateZ(double angle)
+	{
+		rotate(angle, AXIS_Z);
+	}
+	
+	
+	public static void rotate(double angle, Coord axis)
+	{
+		Coord vec = axis.norm(1);
+		glRotated(angle, vec.x, vec.y, vec.z);
+	}
+	
+	
+	public static void pushState()
+	{
+		SlickCallable.enterSafeBlock();
+	}
+	
+	
+	public static void popState()
+	{
+		SlickCallable.leaveSafeBlock();
+	}
+	
+	
+	/**
+	 * Load texture
+	 * 
+	 * @param resourcePath
+	 * @return the loaded texture
+	 */
+	public static Texture loadTexture(String resourcePath)
+	{
+		if (!inited) {
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+			inited = true;
+		}
+		
+		try {
+			
+			String ext = FileUtils.getExtension(resourcePath).toUpperCase();
+			
+			Log.f3("Loading texture " + ext + " at " + resourcePath);
+			
+			Texture texture = TextureLoader.getTexture(ext, ResourceLoader.getResourceAsStream(resourcePath));
+			
+			if (texture == null) {
+				Log.w("Texture " + resourcePath + " could not be loaded.");
+			}
+			
+			return texture;
+			
+		} catch (IOException e) {
+			Log.e("Loading of texture " + resourcePath + " failed.", e);
+			throw new RuntimeException("Could not load texture " + resourcePath + ".", e);
+		}
+		
+	}
+	
+	
+	/**
+	 * Bind texture
+	 * 
+	 * @param texture the texture
+	 * @throws RuntimeException if not loaded yet
+	 */
+	private static void bindTexture(Texture texture) throws RuntimeException
+	{
+		texture.bind();
+	}
+	
+	
+	/**
+	 * Unbind all
+	 */
+	private static void unbindTexture()
+	{
+		if (TextureImpl.getLastBind() != null) {
+			TextureImpl.bindNone();
+		}
+	}
+	
+	
+	/**
+	 * Render quad 2D
+	 * 
+	 * @param rect rectangle
+	 * @param color draw color
+	 */
+	public static void quad(Rect rect, RGB color)
+	{
+		setColor(color);
+		quad(rect);
+	}
+	
+	
+	/**
+	 * Render quad
+	 * 
+	 * @param quad the quad to draw (px)
+	 */
+	public static void quad(Rect quad)
+	{
+		double left = quad.xMin();
+		double bottom = quad.yMin();
+		double right = quad.yMax();
+		double top = quad.yMax();
+		
+		// draw with color
+		unbindTexture();
+		
+		// quad
+		glBegin(GL_QUADS);
+		glVertex2d(left, top);
+		glVertex2d(right, top);
+		glVertex2d(right, bottom);
+		glVertex2d(left, bottom);
+		glEnd();
+	}
+	
+	
+	/**
+	 * Render textured rect (texture must be binded already)
+	 * 
+	 * @param quad rectangle (px)
+	 * @param uvs texture coords (0-1)
+	 */
+	private static void quadUV(Rect quad, Rect uvs)
+	{
+		double left = quad.xMin();
+		double bottom = quad.yMin();
+		double right = quad.xMax();
+		double top = quad.yMax();
+		
+		double tleft = uvs.xMin();
+		double tbottom = uvs.yMin();
+		double tright = uvs.xMax();
+		double ttop = uvs.yMax();
+		
+		// quad with texture
+		glBegin(GL_QUADS);
+		glTexCoord2d(tleft, ttop);
+		glVertex2d(left, top);
+		glTexCoord2d(tright, ttop);
+		glVertex2d(right, top);
+		glTexCoord2d(tright, tbottom);
+		glVertex2d(right, bottom);
+		glTexCoord2d(tleft, tbottom);
+		glVertex2d(left, bottom);
+		glEnd();
+	}
+	
+	
+	public static void quadGradH(Rect quad, RGB colorLeft, RGB colorRight)
+	{
+		double left = quad.xMin();
+		double bottom = quad.yMin();
+		double right = quad.yMax();
+		double top = quad.yMax();
+		
+		// draw with color
+		unbindTexture();
+		
+		glBegin(GL_QUADS);
+		setColor(colorLeft);
+		glVertex2d(left, top);
+		setColor(colorRight);
+		glVertex2d(right, top);
+		
+		setColor(colorRight);
+		glVertex2d(right, bottom);
+		setColor(colorLeft);
+		glVertex2d(left, bottom);
+		glEnd();
+	}
+	
+	
+	public static void quadGradV(Rect quad, RGB colorTop, RGB colorBottom)
+	{
+		double left = quad.xMin();
+		double bottom = quad.yMin();
+		double right = quad.yMax();
+		double top = quad.yMax();
+		
+		// draw with color
+		unbindTexture();
+		
+		glBegin(GL_QUADS);
+		setColor(colorTop);
+		glVertex2d(left, top);
+		glVertex2d(right, top);
+		
+		setColor(colorBottom);
+		glVertex2d(right, bottom);
+		glVertex2d(left, bottom);
+		glEnd();
+	}
+	
+	
+	/**
+	 * Render textured rect
+	 * 
+	 * @param quad rectangle (px)
+	 * @param uvs texture coords rectangle (0-1)
+	 * @param texture texture instance
+	 * @param tint color tint
+	 */
+	public static void quadTextured(Rect quad, Rect uvs, Texture texture, RGB tint)
+	{
+		bindTexture(texture);
+		setColor(tint);
+		quadUV(quad, uvs);
+	}
+	
+	
+	/**
+	 * Render textured rect
+	 * 
+	 * @param quad rectangle (px)
+	 * @param uvs texture coords rectangle (px)
+	 * @param texture texture instance
+	 */
+	public static void quadTextured(Rect quad, Rect uvs, Texture texture)
+	{
+		quadTextured(quad, uvs, texture, RGB.WHITE);
+	}
+	
+	
+	/**
+	 * Render textured rect
+	 * 
+	 * @param quad rectangle (px)
+	 * @param texture texture instance
+	 */
+	public static void quadTextured(Rect quad, Texture texture)
+	{
+		quadTextured(quad, Rect.one(), texture, RGB.WHITE);
+	}
+	
+	
+	/**
+	 * Render textured rect
+	 * 
+	 * @param quad rectangle (px)
+	 * @param txquad texture quad
+	 */
+	public static void quadTextured(Rect quad, TxQuad txquad)
+	{
+		quadTextured(quad, txquad, RGB.WHITE);
+	}
+	
+	
+	/**
+	 * Render textured rect
+	 * 
+	 * @param quad rectangle (px)
+	 * @param txquad texture instance
+	 * @param tint color tint
+	 */
+	public static void quadTextured(Rect quad, TxQuad txquad, RGB tint)
+	{
+		quadTextured(quad, txquad.uvs, txquad.tx, tint);
+	}
+	
+}

src/mightypork/rogue/render/textures/MultiTexture.java

@@ -1,12 +1,14 @@
-package mightypork.rogue.textures;
+package mightypork.rogue.render.textures;
 
 
+import mightypork.rogue.Deferred;
+import mightypork.rogue.render.Render;
 import mightypork.utils.math.coord.Rect;
 
 import org.newdawn.slick.opengl.Texture;
 
 
-public class MultiTexture implements Texture {
+public class MultiTexture implements Texture, Deferred {
 	
 	private Texture backingTexture;
 	private String resourcePath;
@@ -23,17 +25,22 @@ public class MultiTexture implements Texture {
 	}
 	
 	
-	/**
+	@Override
-	 * Attempt to load the texture.
+	public void load()
-	 */
-	private void load()
 	{
-		if (backingTexture == null) {
+		if (!isLoaded()) {
 			backingTexture = Render.loadTexture(resourcePath);
 		}
 	}
 	
 	
+	@Override
+	public boolean isLoaded()
+	{
+		return backingTexture != null;
+	}
+	
+	
 	@Override
 	public boolean hasAlpha()
 	{

src/mightypork/rogue/render/textures/TextureBank.java

@@ -1,11 +1,10 @@
-package mightypork.rogue.textures;
+package mightypork.rogue.render.textures;
 
 
 import java.util.HashMap;
 
 import mightypork.rogue.AppAccess;
-import mightypork.rogue.bus.Subsystem;
+import mightypork.rogue.AppAdapter;
-import mightypork.utils.control.interf.Destroyable;
 import mightypork.utils.math.coord.Rect;
 
 import org.newdawn.slick.opengl.Texture;
@@ -16,9 +15,9 @@ import org.newdawn.slick.opengl.Texture;
  * 
  * @author MightyPork
  */
-public class TextureRegistry extends Subsystem implements Destroyable {
+public class TextureBank extends AppAdapter {
 	
-	public TextureRegistry(AppAccess app) {
+	public TextureBank(AppAccess app) {
 		super(app);
 	}
 	
@@ -84,7 +83,7 @@ public class TextureRegistry extends Subsystem implements Destroyable {
 	 * @param key quad key
 	 * @return the quad
 	 */
-	public TxQuad getQuad(String key)
+	public TxQuad getTxQuad(String key)
 	{
 		TxQuad q = quads.get(key);
 		
@@ -109,16 +108,4 @@ public class TextureRegistry extends Subsystem implements Destroyable {
 		return t;
 	}
 	
-	
-	@Override
-	protected void deinit()
-	{
-		for (Texture tx : textures.values()) {
-			tx.release();
-		}
-		
-		textures.clear();
-		quads.clear();
-	}
-	
 }

src/mightypork/rogue/render/textures/TxQuad.java

@@ -0,0 +1,91 @@
+package mightypork.rogue.render.textures;
+
+
+import mightypork.utils.math.coord.Rect;
+
+import org.newdawn.slick.opengl.Texture;
+
+
+/**
+ * Texture Quad (describing a part of a texture)
+ * 
+ * @author MightyPork
+ */
+public class TxQuad {
+	
+	/** The texture */
+	public Texture tx;
+	/** Coords in texture (0-1) */
+	public Rect uvs;
+	
+	
+	/**
+	 * TxQuad from origin and size in pixels
+	 * 
+	 * @param tx texture
+	 * @param xPx left top X (0-1)
+	 * @param yPx left top Y (0-1)
+	 * @param widthPx area width (0-1)
+	 * @param heightPx area height (0-1)
+	 * @return new TxQuad
+	 */
+	public static TxQuad fromSizePx(Texture tx, double xPx, double yPx, double widthPx, double heightPx)
+	{
+		double w = tx.getImageWidth();
+		double h = tx.getImageHeight();
+		
+		return fromSize(tx, xPx / w, yPx / h, widthPx / w, heightPx / h);
+	}
+	
+	
+	/**
+	 * TxQuad from origin and size 0-1
+	 * 
+	 * @param tx texture
+	 * @param x1 left top X (0-1)
+	 * @param y1 left top Y (0-1)
+	 * @param width area width (0-1)
+	 * @param height area height (0-1)
+	 * @return new TxQuad
+	 */
+	public static TxQuad fromSize(Texture tx, double x1, double y1, double width, double height)
+	{
+		return new TxQuad(tx, x1, y1, x1 + width, y1 + height);
+	}
+	
+	
+	/**
+	 * Make of coords
+	 * 
+	 * @param tx texture
+	 * @param x1 left top X (0-1)
+	 * @param y1 left top Y (0-1)
+	 * @param x2 right bottom X (0-1)
+	 * @param y2 right bottom Y (0-1)
+	 */
+	public TxQuad(Texture tx, double x1, double y1, double x2, double y2) {
+		this(tx, new Rect(x1, y1, x2, y2));
+	}
+	
+	
+	/**
+	 * @param tx Texture
+	 * @param uvs Rect of texturwe UVs (pixels - from left top)
+	 */
+	public TxQuad(Texture tx, Rect uvs) {
+		this.tx = tx;
+		this.uvs = uvs.copy();
+	}
+	
+	
+	public TxQuad(TxQuad txQuad) {
+		this.tx = txQuad.tx;
+		this.uvs = txQuad.uvs.copy();
+	}
+	
+	
+	public TxQuad copy()
+	{
+		return new TxQuad(this);
+	}
+}

src/mightypork/rogue/sounds/NullAudio.java

@@ -1,17 +0,0 @@
-package mightypork.rogue.sounds;
-
-
-public class NullAudio extends AudioX {
-	
-	public NullAudio() {
-		super("");
-	}
-	
-	
-	@Override
-	public boolean load()
-	{
-		return false;
-	}
-	
-}

src/mightypork/rogue/tasks/TaskTakeScreenshot.java

@@ -11,8 +11,8 @@ import java.util.Date;
 import javax.imageio.ImageIO;
 
 import mightypork.rogue.Paths;
-import mightypork.rogue.display.DisplaySystem;
+import mightypork.rogue.render.DisplaySystem;
-import mightypork.rogue.display.DisplaySystem.Screenshot;
+import mightypork.rogue.render.DisplaySystem.Screenshot;
 import mightypork.utils.logging.Log;
 
 

src/mightypork/rogue/textures/TxQuad.java

@@ -1,70 +0,0 @@
-package mightypork.rogue.textures;
-
-
-import mightypork.utils.math.coord.Coord;
-import mightypork.utils.math.coord.Rect;
-
-import org.newdawn.slick.opengl.Texture;
-
-
-/**
- * Texture Quad (describing a part of a texture)
- * 
- * @author MightyPork
- */
-public class TxQuad {
-	
-	/** The texture */
-	public Texture tx;
-	/** Coords in texture (pixels) */
-	public Rect uvs;
-	/** Quad size */
-	public Coord size;
-	
-	
-	/**
-	 * Create TxQuad from left top coord and rect size
-	 * 
-	 * @param tx texture
-	 * @param x1 left top X
-	 * @param y1 left top Y
-	 * @param width area width
-	 * @param height area height
-	 * @return new TxQuad
-	 */
-	public static TxQuad fromSize(Texture tx, int x1, int y1, int width, int height)
-	{
-		return new TxQuad(tx, x1, y1, x1 + width, y1 + height);
-	}
-	
-	
-	/**
-	 * Make of coords
-	 * 
-	 * @param tx texture
-	 * @param x1 x1
-	 * @param y1 y1
-	 * @param x2 x2
-	 * @param y2 y2
-	 */
-	public TxQuad(Texture tx, int x1, int y1, int x2, int y2) {
-		this(tx, new Rect(x1, y1, x2, y2));
-	}
-	
-	
-	/**
-	 * @param tx Texture
-	 * @param uvs Rect of texturwe UVs (pixels - from left top)
-	 */
-	public TxQuad(Texture tx, Rect uvs) {
-		this.tx = tx;
-		this.uvs = uvs.copy();
-		this.size = uvs.getSize();
-	}
-	
-	
-	public TxQuad copy()
-	{
-		return new TxQuad(tx, uvs);
-	}
-}

src/mightypork/utils/control/bus/BufferedHashSet.java

@@ -0,0 +1,130 @@
+package mightypork.utils.control.bus;
+
+
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+
+
+/**
+ * HashSet that buffers add and remove calls and performs them all at once when
+ * a flush() method is called.
+ * 
+ * @author MightyPork
+ * @param <E> element type
+ */
+public class BufferedHashSet<E> extends HashSet<E> {
+	
+	private List<E> toAdd = new LinkedList<E>();
+	private List<Object> toRemove = new LinkedList<Object>();
+	private boolean buffering = false;
+	
+	
+	public BufferedHashSet() {
+		super();
+	}
+	
+	
+	public BufferedHashSet(Collection<? extends E> c) {
+		super(c);
+	}
+	
+	
+	public BufferedHashSet(int initialCapacity, float loadFactor) {
+		super(initialCapacity, loadFactor);
+	}
+	
+	
+	public BufferedHashSet(int initialCapacity) {
+		super(initialCapacity);
+	}
+	
+	
+	@Override
+	public boolean add(E e)
+	{
+		if (buffering) {
+			toAdd.add(e);
+		} else {
+			super.add(e);
+		}
+		
+		return true;
+	}
+	
+	
+	@Override
+	public boolean remove(Object e)
+	{
+		if (buffering) {
+			toRemove.add(e);
+		} else {
+			super.remove(e);
+		}
+		
+		return true;
+	}
+	
+	
+	/**
+	 * Flush all
+	 */
+	private void flush()
+	{
+		for (E e : toAdd) {
+			super.add(e);
+		}
+		
+		for (Object e : toRemove) {
+			super.remove(e);
+		}
+		
+		toAdd.clear();
+		toRemove.clear();
+	}
+	
+	
+	@Override
+	public boolean removeAll(Collection<?> c)
+	{
+		throw new UnsupportedOperationException();
+	}
+	
+	
+	@Override
+	public boolean containsAll(Collection<?> c)
+	{
+		throw new UnsupportedOperationException();
+	}
+	
+	
+	@Override
+	public boolean addAll(Collection<? extends E> c)
+	{
+		throw new UnsupportedOperationException();
+	}
+	
+	
+	@Override
+	public boolean retainAll(Collection<?> c)
+	{
+		throw new UnsupportedOperationException();
+	}
+	
+	
+	/**
+	 * Toggle buffering
+	 * 
+	 * @param enable enable buffering
+	 */
+	public void setBuffering(boolean enable)
+	{
+		if (this.buffering && !enable) {
+			flush();
+		}
+		
+		this.buffering = enable;
+	}
+	
+}

src/mightypork/utils/control/bus/Event.java

@@ -7,7 +7,7 @@ package mightypork.utils.control.bus;
  * @author MightyPork
  * @param <HANDLER> handler type
  */
-public interface Handleable<HANDLER> {
+public interface Event<HANDLER> {
 	
 	/**
 	 * Ask handler to handle this message.

src/mightypork/utils/control/bus/EventBus.java

@@ -1,13 +1,11 @@
 package mightypork.utils.control.bus;
 
 
-import java.util.Collection;
+import java.util.concurrent.DelayQueue;
-import java.util.concurrent.CopyOnWriteArraySet;
+import java.util.concurrent.Delayed;
+import java.util.concurrent.TimeUnit;
 
-import mightypork.utils.control.bus.events.DestroyEvent;
-import mightypork.utils.control.bus.events.UpdateEvent;
 import mightypork.utils.control.interf.Destroyable;
-import mightypork.utils.control.interf.Updateable;
 import mightypork.utils.logging.Log;
 
 
@@ -16,25 +14,37 @@ import mightypork.utils.logging.Log;
  * 
  * @author MightyPork
  */
-final public class EventBus {
+final public class EventBus implements Destroyable {
 	
-	private Collection<EventChannel<?, ?>> channels = new CopyOnWriteArraySet<EventChannel<?, ?>>();
+	private BufferedHashSet<EventChannel<?, ?>> channels = new BufferedHashSet<EventChannel<?, ?>>();
-	
+	private BufferedHashSet<Object> clients = new BufferedHashSet<Object>();
-	private Collection<Object> clients = new CopyOnWriteArraySet<Object>();
+	private DelayQueue<DelayedMessage> sendQueue = new DelayQueue<DelayedMessage>();
+	private BusThread busThread;
 	
 	private boolean logging = false;
+	private boolean dead = false;
 	
 	
 	public EventBus() {
-		// default channels
+		busThread = new BusThread();
-		createChannel(DestroyEvent.class, Destroyable.class);
+		busThread.start();
-		createChannel(UpdateEvent.class, Updateable.class);
 	}
 	
 	
-	public void enableLogging(boolean enable)
+	/**
+	 * Enable a level of logging.
+	 * 
+	 * @param level 0 none, 1 warning only, 2 all
+	 */
+	public void enableLogging(boolean level)
 	{
-		logging = enable;
+		assertLive();
+		
+		logging = level;
+		
+		for (EventChannel<?, ?> ch : channels) {
+			ch.enableLogging(logging);
+		}
 	}
 	
 	
@@ -47,20 +57,40 @@ final public class EventBus {
 	 */
 	public EventChannel<?, ?> addChannel(EventChannel<?, ?> channel)
 	{
+		assertLive();
+		
 		// if the channel already exists, return this instance instead.
 		for (EventChannel<?, ?> ch : channels) {
 			if (ch.equals(channel)) {
-				if (logging) Log.w("Channel of type " + channel + " already registered.");
+				Log.w("<bus> Channel of type " + Log.str(channel) + " already registered.");
 				return ch;
 			}
 		}
 		
 		channels.add(channel);
+		channel.enableLogging(logging);
+		if (logging) Log.f3("<bus> Added chanel: " + Log.str(channel));
 		
 		return channel;
 	}
 	
 	
+	/**
+	 * Add a channel for given message and client type.
+	 * 
+	 * @param messageClass message type
+	 * @param clientClass client type
+	 * @return the created channel instance
+	 */
+	public <F_EVENT extends Event<F_CLIENT>, F_CLIENT> EventChannel<?, ?> addChannel(Class<F_EVENT> messageClass, Class<F_CLIENT> clientClass)
+	{
+		assertLive();
+		
+		EventChannel<F_EVENT, F_CLIENT> channel = EventChannel.create(messageClass, clientClass);
+		return addChannel(channel);
+	}
+	
+	
 	/**
 	 * Remove a {@link EventChannel} from this bus
 	 * 
@@ -68,29 +98,71 @@ final public class EventBus {
 	 */
 	public void removeChannel(EventChannel<?, ?> channel)
 	{
+		assertLive();
+		
 		channels.remove(channel);
 	}
 	
 	
 	/**
-	 * Broadcast a message
+	 * Add message to a queue
 	 * 
 	 * @param message message
-	 * @return true if message was accepted by at least one channel
 	 */
-	public boolean broadcast(Object message)
+	public void queue(Event<?> message)
 	{
-		if (logging) Log.f3("<bus> Broadcasting: " + message);
+		assertLive();
 		
-		boolean sent = false;
+		schedule(message, 0);
+	}
+	
+	
+	/**
+	 * Add message to a queue, scheduled for given time.
+	 * 
+	 * @param message message
+	 * @param delay delay before message is dispatched
+	 */
+	public void schedule(Event<?> message, double delay)
+	{
+		assertLive();
 		
-		for (EventChannel<?, ?> b : channels) {
+		DelayedMessage dm = new DelayedMessage(delay, message);
-			sent |= b.broadcast(message, clients);
-		}
 		
-		if (!sent && logging) Log.w("Message not accepted by any channel: " + message);
+		if (logging) Log.f3("<bus> + [ Queuing: " + Log.str(message) + " ]");
 		
-		return sent;
+		sendQueue.add(dm);
+	}
+	
+	
+	/**
+	 * Send immediately.<br>
+	 * Should be used for real-time events that require immediate response, such
+	 * as timing events.
+	 * 
+	 * @param message message
+	 */
+	public void send(Event<?> message)
+	{
+		assertLive();
+		
+		synchronized (this) {
+			channels.setBuffering(true);
+			clients.setBuffering(true);
+			
+			if (logging) Log.f3("<bus> - [ Sending: " + Log.str(message) + " ]");
+			
+			boolean sent = false;
+			
+			for (EventChannel<?, ?> b : channels) {
+				sent |= b.broadcast(message, clients);
+			}
+			
+			if (!sent) Log.w("<bus> Not accepted by any channel: " + Log.str(message));
+			
+			channels.setBuffering(false);
+			clients.setBuffering(false);
+		}
 	}
 	
 	
@@ -99,15 +171,16 @@ final public class EventBus {
 	 * and future channels, until removed from the bus.
 	 * 
 	 * @param client the client
-	 * @return true on success
 	 */
-	public boolean subscribe(Object client)
+	public void subscribe(Object client)
 	{
-		if (client == null) return false;
+		assertLive();
+		
+		if (client == null) return;
 		
 		clients.add(client);
 		
-		return true;
+		if (logging) Log.f3("<bus> ADDING CLIENT " + client);
 	}
 	
 	
@@ -118,22 +191,111 @@ final public class EventBus {
 	 */
 	public void unsubscribe(Object client)
 	{
+		assertLive();
+		
 		clients.remove(client);
+		if (logging) Log.f3("<bus> REMOVING CLIENT " + client);
+		
+	}
+	
+	
+	public boolean isClientValid(Object client)
+	{
+		assertLive();
+		
+		if (client == null) return false;
+		
+		for (EventChannel<?, ?> ch : channels) {
+			if (ch.isClientValid(client)) {
+				return true;
+			}
+		}
+		
+		return false;
+	}
+	
+	private class DelayedMessage implements Delayed {
+		
+		private long due;
+		private Event<?> theMessage = null;
+		
+		
+		public DelayedMessage(double seconds, Event<?> theMessage) {
+			super();
+			this.due = System.currentTimeMillis() + (long) (seconds * 1000);
+			this.theMessage = theMessage;
+		}
+		
+		
+		@Override
+		public int compareTo(Delayed o)
+		{
+			return -Long.valueOf(o.getDelay(TimeUnit.MILLISECONDS)).compareTo(getDelay(TimeUnit.MILLISECONDS));
+		}
+		
+		
+		@Override
+		public long getDelay(TimeUnit unit)
+		{
+			return unit.convert(due - System.currentTimeMillis(), TimeUnit.MILLISECONDS);
+		}
+		
+		
+		public Event<?> getMessage()
+		{
+			return theMessage;
+		}
+		
+	}
+	
+	private class BusThread extends Thread {
+		
+		public boolean stopped;
+		
+		
+		@Override
+		public void run()
+		{
+			while (!stopped) {
+				DelayedMessage dm = null;
+				
+				try {
+					dm = sendQueue.take();
+				} catch (InterruptedException ignored) {
+					//
+				}
+				
+				if (dm != null) {
+					send(dm.getMessage());
+				}
+			}
+		}
+		
 	}
 	
 	
 	/**
-	 * Add a channel for given message and client type.
+	 * Halt bus thread and reject any future events.
+	 */
+	@Override
+	public void destroy()
+	{
+		assertLive();
+		
+		busThread.stopped = true;
+		
+		dead = true;
+	}
+	
+	
+	/**
+	 * Make sure the bus is not destroyed.
 	 * 
-	 * @param messageClass message type
+	 * @throws IllegalStateException if the bus is dead.
-	 * @param clientClass client type
-	 * @return the created channel instance
 	 */
-	public <F_EVENT extends Handleable<F_CLIENT>, F_CLIENT> EventChannel<?, ?> createChannel(Class<F_EVENT> messageClass, Class<F_CLIENT> clientClass)
+	private void assertLive() throws IllegalStateException
 	{
-		EventChannel<F_EVENT, F_CLIENT> channel = EventChannel.create(messageClass, clientClass);
+		if (dead) throw new IllegalStateException("EventBus is dead.");
-		channel.enableLogging(logging);
-		return addChannel(channel);
 	}
 	
 }

src/mightypork/utils/control/bus/EventChannel.java

@@ -16,13 +16,19 @@ import mightypork.utils.logging.Log;
  * @param <EVENT> message type
  * @param <CLIENT> client (subscriber) type
  */
-final public class EventChannel<EVENT extends Handleable<CLIENT>, CLIENT> {
+final public class EventChannel<EVENT extends Event<CLIENT>, CLIENT> {
 	
 	private Class<CLIENT> clientClass;
 	private Class<EVENT> messageClass;
 	private boolean logging = false;
 	
 	
+	/**
+	 * Create a channel
+	 * 
+	 * @param messageClass event class
+	 * @param clientClass client class
+	 */
 	public EventChannel(Class<EVENT> messageClass, Class<CLIENT> clientClass) {
 		
 		if (messageClass == null || clientClass == null) throw new NullPointerException("Null Message or Client class.");
@@ -32,9 +38,14 @@ final public class EventChannel<EVENT extends Handleable<CLIENT>, CLIENT> {
 	}
 	
 	
-	public void enableLogging(boolean enable)
+	/**
+	 * Enable logging of non-warning debug messages.
+	 * 
+	 * @param logging enable logging
+	 */
+	public void enableLogging(boolean logging)
 	{
-		logging = enable;
+		this.logging = logging;
 	}
 	
 	
@@ -46,7 +57,7 @@ final public class EventChannel<EVENT extends Handleable<CLIENT>, CLIENT> {
 	 * @param clients collection of clients
 	 * @return true if message was accepted by this channel
 	 */
-	public boolean broadcast(Object message, Collection<Object> clients)
+	public boolean broadcast(Event<?> message, Collection<Object> clients)
 	{
 		if (!canBroadcast(message)) return false;
 		
@@ -58,13 +69,22 @@ final public class EventChannel<EVENT extends Handleable<CLIENT>, CLIENT> {
 	}
 	
 	
-	private void doBroadcast(EVENT message, Collection<Object> clients, Collection<Object> processed)
+	/**
+	 * Send the message
+	 * 
+	 * @param message sent message
+	 * @param clients subscribing clients
+	 * @param processed clients already processed
+	 */
+	private void doBroadcast(final EVENT message, final Collection<Object> clients, final Collection<Object> processed)
 	{
 		for (Object client : clients) {
+			if (!isClientValid(client)) {
+				continue;
+			}
 			
-			// circular reference check
 			if (processed.contains(client)) {
-				if (logging) Log.w("Client already served (subscribing twice?)");
+				Log.w("<bus> Client already served: " + Log.str(client));
 				continue;
 			}
 			processed.add(client);
@@ -72,6 +92,7 @@ final public class EventChannel<EVENT extends Handleable<CLIENT>, CLIENT> {
 			// opt-out
 			if (client instanceof ToggleableClient) {
 				if (!((ToggleableClient) client).isListening()) {
+					if (logging) Log.f3("<bus> Client disabled: " + Log.str(client));
 					continue;
 				}
 			}
@@ -80,7 +101,10 @@ final public class EventChannel<EVENT extends Handleable<CLIENT>, CLIENT> {
 			
 			if (client instanceof DelegatingClient) {
 				if (((DelegatingClient) client).doesDelegate()) {
-					doBroadcast(message, ((DelegatingClient) client).getChildClients(), processed);
+					Collection<Object> children = ((DelegatingClient) client).getChildClients();
+					if (children != null && children.size() > 0) doBroadcast(message, children, processed);
+				} else {
+					if (logging) Log.f3("<bus> Client not delegating: " + Log.str(client));
 				}
 			}
 		}
@@ -96,9 +120,9 @@ final public class EventChannel<EVENT extends Handleable<CLIENT>, CLIENT> {
 	@SuppressWarnings("unchecked")
 	private void sendTo(Object client, EVENT message)
 	{
-		if (clientClass.isInstance(client)) {
+		if (isClientOfType(client)) {
-			((Handleable<CLIENT>) message).handleBy((CLIENT) client);
+			if (logging) Log.f3("<bus> Delivered " + Log.str(message) + " to " + Log.str(client));
-			if (logging) Log.f3("<bus> Received by: " + client);
+			((Event<CLIENT>) message).handleBy((CLIENT) client);
 		}
 	}
 	
@@ -110,12 +134,49 @@ final public class EventChannel<EVENT extends Handleable<CLIENT>, CLIENT> {
 	 * @param message event object
 	 * @return can be broadcasted
 	 */
-	public boolean canBroadcast(Object message)
+	public boolean canBroadcast(Event<?> message)
 	{
 		return message != null && messageClass.isInstance(message);
 	}
 	
 	
+	/**
+	 * Create an instance for given types
+	 * 
+	 * @param messageClass event class
+	 * @param clientClass client class
+	 * @return the broadcaster
+	 */
+	public static <F_EVENT extends Event<F_CLIENT>, F_CLIENT> EventChannel<F_EVENT, F_CLIENT> create(Class<F_EVENT> messageClass, Class<F_CLIENT> clientClass)
+	{
+		return new EventChannel<F_EVENT, F_CLIENT>(messageClass, clientClass);
+	}
+	
+	
+	/**
+	 * Check if client is of channel type
+	 * 
+	 * @param client client
+	 * @return is of type
+	 */
+	private boolean isClientOfType(Object client)
+	{
+		return clientClass.isInstance(client);
+	}
+	
+	
+	/**
+	 * Check if the channel is compatible with given
+	 * 
+	 * @param client client
+	 * @return is supported
+	 */
+	public boolean isClientValid(Object client)
+	{
+		return isClientOfType(client) || (client instanceof DelegatingClient);
+	}
+	
+	
 	@Override
 	public int hashCode()
 	{
@@ -147,20 +208,6 @@ final public class EventChannel<EVENT extends Handleable<CLIENT>, CLIENT> {
 	@Override
 	public String toString()
 	{
-		return "CHANNEL( " + messageClass.getSimpleName() + " -> " + clientClass.getSimpleName() + " )";
+		return "{ " + Log.str(messageClass) + " => " + Log.str(clientClass) + " }";
 	}
-	
-	
-	/**
-	 * Create an instance for given types
-	 * 
-	 * @param messageClass event class
-	 * @param clientClass client class
-	 * @return the broadcaster
-	 */
-	public static <F_EVENT extends Handleable<F_CLIENT>, F_CLIENT> EventChannel<F_EVENT, F_CLIENT> create(Class<F_EVENT> messageClass, Class<F_CLIENT> clientClass)
-	{
-		return new EventChannel<F_EVENT, F_CLIENT>(messageClass, clientClass);
-	}
-	
 }

src/mightypork/utils/control/bus/events/DestroyEvent.java

@@ -1,11 +1,11 @@
 package mightypork.utils.control.bus.events;
 
 
-import mightypork.utils.control.bus.Handleable;
+import mightypork.utils.control.bus.Event;
 import mightypork.utils.control.interf.Destroyable;
 
 
-public class DestroyEvent implements Handleable<Destroyable> {
+public class DestroyEvent implements Event<Destroyable> {
 	
 	@Override
 	public void handleBy(Destroyable handler)

src/mightypork/utils/control/bus/events/UpdateEvent.java

@@ -1,7 +1,7 @@
 package mightypork.utils.control.bus.events;
 
 
-import mightypork.utils.control.bus.Handleable;
+import mightypork.utils.control.bus.Event;
 import mightypork.utils.control.interf.Updateable;
 
 
@@ -10,7 +10,7 @@ import mightypork.utils.control.interf.Updateable;
  * 
  * @author MightyPork
  */
-public class UpdateEvent implements Handleable<Updateable> {
+public class UpdateEvent implements Event<Updateable> {
 	
 	private final double deltaTime;
 	

src/mightypork/utils/control/timing/TimerFps.java

@@ -38,7 +38,6 @@ public class TimerFps {
 		long time = getTime();
 		if (time >= nextFrame) {
 			long skippedNow = (long) Math.floor((time - nextFrame) / (double) FRAME) + 1;
-			// System.out.println("Skipping: "+skippedNow);
 			skipped += skippedNow;
 			lastFrame = nextFrame + (1 - skippedNow) * FRAME;
 			nextFrame += skippedNow * FRAME;

src/mightypork/utils/logging/Log.java

@@ -176,4 +176,35 @@ public class Log {
 		main.removeMonitor(id);
 	}
 	
+	
+	public static String str(Object o)
+	{
+		
+		boolean hasToString = false;
+		
+		try {
+			hasToString = (o.getClass().getMethod("toString").getDeclaringClass() != Object.class);
+		} catch (Exception e) {
+			// oh well..
+		}
+		
+		if (hasToString) {
+			return o.toString();
+		} else {
+			
+			Class<?> cls = o.getClass();
+			
+			Class<?> enclosing = cls.getEnclosingClass();
+			
+			return (enclosing == null ? "" : enclosing.getSimpleName() + ".") + cls.getSimpleName();
+		}
+	}
+	
+	
+	public static String str(Class<?> cls)
+	{
+		Class<?> enclosing = cls.getEnclosingClass();
+		
+		return (enclosing == null ? "" : enclosing.getSimpleName() + ".") + cls.getSimpleName();
+	}
 }

src/mightypork/utils/math/animation/AnimDouble.java

@@ -109,7 +109,7 @@ public class AnimDouble implements Updateable, Pauseable {
 	 * 
 	 * @return the value
 	 */
-	public double getCurrentValue()
+	public double now()
 	{
 		if (duration == 0) return to;
 		return Calc.interpolate(from, to, (elapsedTime / duration), easing);
@@ -191,7 +191,7 @@ public class AnimDouble implements Updateable, Pauseable {
 	 */
 	public void animate(double from, double to, double time)
 	{
-		double current = getCurrentValue();
+		double current = now();
 		
 		this.from = from;
 		this.to = to;
@@ -229,9 +229,7 @@ public class AnimDouble implements Updateable, Pauseable {
 	 */
 	public void fadeTo(double to, double time)
 	{
-		double current = getCurrentValue();
+		this.from = now();
-		
-		this.from = current;
 		this.to = to;
 		this.duration = time;
 		this.elapsedTime = 0;
@@ -295,7 +293,7 @@ public class AnimDouble implements Updateable, Pauseable {
 	 */
 	public void stop()
 	{
-		from = to = getCurrentValue();
+		from = to = now();
 		elapsedTime = 0;
 		duration = 0;
 	}

src/mightypork/utils/math/animation/AnimDoubleDeg.java

@@ -28,7 +28,7 @@ public class AnimDoubleDeg extends AnimDouble {
 	
 	
 	@Override
-	public double getCurrentValue()
+	public double now()
 	{
 		if (duration == 0) return Deg.norm(to);
 		return Calc.interpolateDeg(from, to, (elapsedTime / duration), easing);

src/mightypork/utils/math/animation/AnimDoubleRad.java

@@ -28,7 +28,7 @@ public class AnimDoubleRad extends AnimDouble {
 	
 	
 	@Override
-	public double getCurrentValue()
+	public double now()
 	{
 		if (duration == 0) return Rad.norm(to);
 		return Calc.interpolateRad(from, to, (elapsedTime / duration), easing);

src/mightypork/utils/math/constraints/ConstraintFactory.java

@@ -203,7 +203,7 @@ public class ConstraintFactory {
 			@Override
 			public double getValue()
 			{
-				return a.getCurrentValue();
+				return a.now();
 			}
 		};
 	}
@@ -292,6 +292,19 @@ public class ConstraintFactory {
 	}
 	
 	
+	public static RectConstraint c_center(ConstraintContext context)
+	{
+		return new RectConstraint(context) {
+			
+			@Override
+			public Rect getRect()
+			{
+				return Rect.fromSize(getContext().getRect().getCenter(), 0, 0);
+			}
+		};
+	}
+	
+	
 	public static RectConstraint c_grow(ConstraintContext context, NumConstraint grow)
 	{
 		return c_grow(context, grow, grow, grow, grow);
@@ -335,12 +348,6 @@ public class ConstraintFactory {
 	}
 	
 	
-	/**
-	 * @param context
-	 * @param width
-	 * @param height
-	 * @return
-	 */
 	public static RectConstraint c_box_sized(ConstraintContext context, final NumConstraint width, final NumConstraint height)
 	{
 		return new RectConstraint(context) {

src/mightypork/utils/math/coord/Rect.java

@@ -11,12 +11,6 @@ import mightypork.utils.math.Calc;
  */
 public class Rect {
 	
-	/** Rect [0, 0, 1, 1] */
-	public static final Rect ONE = new Rect(0, 0, 1, 1);
-	/** Rect all zeros */
-	public static final Rect ZERO = new Rect(0, 0, 0, 0);
-	
-	
 	/**
 	 * Rectangle from size
 	 * 
@@ -751,10 +745,28 @@ public class Rect {
 	}
 	
 	
+	/**
+	 * @return rect [0,0-1,1]
+	 */
+	public static Rect one()
+	{
+		return new Rect(0, 0, 1, 1);
+	}
+	
+	
+	/**
+	 * @return rect [0,0-0,0]
+	 */
+	public static Rect zero()
+	{
+		return new Rect(0, 0, 0, 0);
+	}
+	
+	
 	@Override
 	public String toString()
 	{
-		return String.format("[( %4d, %4d )-( %4d, %4d )]", (int) min.x, (int) min.y, (int) max.x, (int) max.y);
+		return String.format("[( %4.1f; %4.1f )-( %4.1f; %4.1f )]", min.x, min.y, max.x, max.y);
 	}