Huge refactoring, cleanup, constraints

src/mightypork/rogue/App.java

@@ -16,7 +16,7 @@ import mightypork.rogue.sounds.SoundSystem;
 import mightypork.rogue.tasks.TaskTakeScreenshot;
 import mightypork.rogue.util.Utils;
 import mightypork.utils.control.Destroyable;
-import mightypork.utils.control.bus.MessageBus;
+import mightypork.utils.control.bus.EventBus;
 import mightypork.utils.control.timing.TimerDelta;
 import mightypork.utils.control.timing.UpdateEvent;
 import mightypork.utils.control.timing.Updateable;
@@ -39,7 +39,7 @@ public class App implements Destroyable, AppAccess {
 	private InputSystem input;
 	private SoundSystem sounds;
 	private DisplaySystem display;
-	private MessageBus events;
+	private EventBus events;
 	
 	/** current screen */
 	private Screen screen;
@@ -172,7 +172,7 @@ public class App implements Destroyable, AppAccess {
 	 */
 	private void initBus()
 	{
-		events = new MessageBus();
+		events = new EventBus();
 		events.subscribe(this);
 		
 		events.createChannel(UpdateEvent.class, Updateable.class);
@@ -335,7 +335,7 @@ public class App implements Destroyable, AppAccess {
 	 * @return event bus
 	 */
 	@Override
-	public MessageBus bus()
+	public EventBus bus()
 	{
 		return events;
 	}

src/mightypork/rogue/AppAccess.java

@@ -4,7 +4,7 @@ package mightypork.rogue;
 import mightypork.rogue.display.DisplaySystem;
 import mightypork.rogue.input.InputSystem;
 import mightypork.rogue.sounds.SoundSystem;
-import mightypork.utils.control.bus.MessageBus;
+import mightypork.utils.control.bus.EventBus;
 
 
 /**
@@ -35,7 +35,7 @@ public interface AppAccess {
 	/**
 	 * @return event bus
 	 */
-	abstract MessageBus bus();
+	abstract EventBus bus();
 	
 	
 	/**

src/mightypork/rogue/AppAdapter.java

@@ -4,7 +4,7 @@ package mightypork.rogue;
 import mightypork.rogue.display.DisplaySystem;
 import mightypork.rogue.input.InputSystem;
 import mightypork.rogue.sounds.SoundSystem;
-import mightypork.utils.control.bus.MessageBus;
+import mightypork.utils.control.bus.EventBus;
 
 
 /**
@@ -46,7 +46,7 @@ public class AppAdapter implements AppAccess {
 	
 	
 	@Override
-	public final MessageBus bus()
+	public final EventBus bus()
 	{
 		return app.bus();
 	}

src/mightypork/rogue/bus/ChildClient.java

@@ -7,13 +7,13 @@ import java.util.Set;
 
 import mightypork.rogue.AppAccess;
 import mightypork.rogue.AppAdapter;
-import mightypork.utils.control.bus.MessageBus;
+import mightypork.utils.control.bus.EventBus;
 import mightypork.utils.control.bus.clients.DelegatingClient;
 import mightypork.utils.control.bus.clients.ToggleableClient;
 
 
 /**
- * Client that can be attached to the {@link MessageBus}, or added as a child
+ * Client that can be attached to the {@link EventBus}, or added as a child
  * client to another {@link DelegatingClient}
  * 
  * @author MightyPork
@@ -51,7 +51,7 @@ public class ChildClient extends AppAdapter implements DelegatingClient, Togglea
 	
 	
 	/**
-	 * Add a child subscriber to the {@link MessageBus}.<br>
+	 * Add a child subscriber to the {@link EventBus}.<br>
 	 * 
 	 * @param client
 	 */

src/mightypork/rogue/display/DisplaySystem.java

@@ -9,8 +9,8 @@ import java.nio.ByteBuffer;
 import mightypork.rogue.AppAccess;
 import mightypork.rogue.bus.Subsystem;
 import mightypork.rogue.bus.events.ScreenChangeEvent;
-import mightypork.rogue.display.constraints.RenderContext;
 import mightypork.utils.logging.Log;
+import mightypork.utils.math.constraints.ConstraintContext;
 import mightypork.utils.math.coord.Coord;
 import mightypork.utils.math.coord.Rect;
 
@@ -20,7 +20,7 @@ import org.lwjgl.opengl.Display;
 import org.lwjgl.opengl.DisplayMode;
 
 
-public class DisplaySystem extends Subsystem implements RenderContext {
+public class DisplaySystem extends Subsystem implements ConstraintContext {
 	
 	private DisplayMode windowDisplayMode;
 	private int targetFps;
@@ -109,7 +109,7 @@ public class DisplaySystem extends Subsystem implements RenderContext {
 	}
 	
 	
-	public BufferedImage takeScreenshot()
+	public Screenshot takeScreenshot()
 	{
 		glReadBuffer(GL_FRONT);
 		int width = Display.getDisplayMode().getWidth();
@@ -119,20 +119,9 @@ public class DisplaySystem extends Subsystem implements RenderContext {
 		ByteBuffer buffer = BufferUtils.createByteBuffer(width * height * bpp);
 		glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
 		
-		BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
+		Screenshot sc = new Screenshot(width, height, bpp, buffer);
 		
-		// convert to a buffered image
-		for (int x = 0; x < width; x++) {
-			for (int y = 0; y < height; y++) {
-				int i = (x + (width * y)) * bpp;
-				int r = buffer.get(i) & 0xFF;
-				int g = buffer.get(i + 1) & 0xFF;
-				int b = buffer.get(i + 2) & 0xFF;
-				image.setRGB(x, height - (y + 1), (0xFF << 24) | (r << 16) | (g << 8) | b);
-			}
-		}
-		
-		return image;
+		return sc;
 	}
 	
 	
@@ -197,4 +186,20 @@ public class DisplaySystem extends Subsystem implements RenderContext {
 	{
 		return new Rect(getSize());
 	}
+	
+	public static class Screenshot {
+		
+		public int width;
+		public int height;
+		public int bpp;
+		public ByteBuffer bytes;
+		
+		
+		public Screenshot(int width, int height, int bpp, ByteBuffer buffer) {
+			this.width = width;
+			this.height = height;
+			this.bpp = bpp;
+			this.bytes = buffer;
+		}
+	}
 }

src/mightypork/rogue/display/Screen.java

@@ -5,11 +5,11 @@ import static org.lwjgl.opengl.GL11.*;
 import mightypork.rogue.AppAccess;
 import mightypork.rogue.bus.Subsystem;
 import mightypork.rogue.bus.events.ScreenChangeEvent;
-import mightypork.rogue.display.constraints.RenderContext;
 import mightypork.rogue.input.KeyBinder;
 import mightypork.rogue.input.KeyBindingPool;
 import mightypork.rogue.input.KeyStroke;
 import mightypork.utils.control.timing.Updateable;
+import mightypork.utils.math.constraints.ConstraintContext;
 import mightypork.utils.math.coord.Coord;
 import mightypork.utils.math.coord.Rect;
 
@@ -21,14 +21,12 @@ import mightypork.utils.math.coord.Rect;
  * 
  * @author MightyPork
  */
-public abstract class Screen extends Subsystem implements Updateable, KeyBinder, RenderContext, ScreenChangeEvent.Listener {
+public abstract class Screen extends Subsystem implements Updateable, KeyBinder, ConstraintContext, ScreenChangeEvent.Listener {
 	
 	private final KeyBindingPool keybindings = new KeyBindingPool();
 	
 	private boolean active;
 	
-	private boolean inited = false;
-	
 	
 	public Screen(AppAccess app) {
 		super(app);

src/mightypork/rogue/display/ScreenLayer.java

@@ -2,9 +2,9 @@ package mightypork.rogue.display;
 
 
 import mightypork.rogue.bus.ChildClient;
-import mightypork.rogue.display.constraints.RenderContext;
 import mightypork.rogue.display.constraints.Renderable;
 import mightypork.utils.control.timing.Updateable;
+import mightypork.utils.math.constraints.ConstraintContext;
 import mightypork.utils.math.coord.Rect;
 
 
@@ -13,7 +13,7 @@ import mightypork.utils.math.coord.Rect;
  * 
  * @author MightyPork
  */
-public abstract class ScreenLayer extends ChildClient implements Renderable, Updateable, RenderContext {
+public abstract class ScreenLayer extends ChildClient implements Renderable, Updateable, ConstraintContext {
 	
 	private Screen screen;
 	
@@ -39,16 +39,6 @@ public abstract class ScreenLayer extends ChildClient implements Renderable, Upd
 	}
 	
 	
-	/**
-	 * UNSUPPORTED
-	 */
-	@Override
-	public final void setContext(RenderContext context)
-	{
-		throw new UnsupportedOperationException("ScreenLayer uses screen as it's context.");
-	}
-	
-	
 	@Override
 	public Rect getRect()
 	{

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

@@ -5,13 +5,15 @@ import java.util.LinkedList;
 
 import mightypork.rogue.AppAccess;
 import mightypork.rogue.bus.ChildClient;
+import mightypork.utils.math.constraints.ConstraintContext;
+import mightypork.utils.math.constraints.RectConstraint;
 import mightypork.utils.math.coord.Rect;
 
 
-public class ElementHolder extends ChildClient implements RenderContext, Renderable {
+public class ElementHolder extends ChildClient implements ConstraintContext, RenderableWithContext {
 	
-	private LinkedList<Renderable> elements = new LinkedList<Renderable>();
-	private RenderContext context;
+	private LinkedList<RenderableWithContext> elements = new LinkedList<RenderableWithContext>();
+	private ConstraintContext context;
 	
 	
 	public ElementHolder(AppAccess app) {
@@ -19,64 +21,19 @@ public class ElementHolder extends ChildClient implements RenderContext, Rendera
 	}
 	
 	
-	public ElementHolder(AppAccess app, RenderContext context) {
+	public ElementHolder(AppAccess app, ConstraintContext context) {
 		super(app);
 		this.context = context;
 	}
 	
 	
 	@Override
-	public void setContext(RenderContext context)
+	public void setContext(ConstraintContext context)
 	{
 		this.context = context;
 	}
 	
 	
-	/**
-	 * Add element to the holder.
-	 * 
-	 * @param elem
-	 */
-	public void add(Renderable elem)
-	{
-		if (elem == null) return;
-		elem.setContext(this);
-		elements.add(elem);
-		addChildClient(elem);
-	}
-	
-	
-	/**
-	 * Add element to the holder.
-	 * 
-	 * @param elem
-	 * @param constraint
-	 */
-	public void add(Renderable elem, RectConstraint constraint)
-	{
-		if (elem == null) return;
-		
-		constraint.setContext(this);
-		elem.setContext(constraint);
-		
-		elements.add(elem);
-		addChildClient(elem);
-	}
-	
-	
-	/**
-	 * Remove element from the holder
-	 * 
-	 * @param elem
-	 */
-	public void remove(Renderable elem)
-	{
-		if (elem == null) return;
-		elements.remove(elem);
-		removeChildClient(elem);
-	}
-	
-	
 	@Override
 	public void render()
 	{
@@ -92,4 +49,49 @@ public class ElementHolder extends ChildClient implements RenderContext, Rendera
 		return context.getRect();
 	}
 	
+	
+	/**
+	 * Add element to the holder.
+	 * 
+	 * @param elem
+	 */
+	public void add(RenderableWithContext elem)
+	{
+		if (elem == null) return;
+		elem.setContext(this);
+		elements.add(elem);
+		addChildClient(elem);
+	}
+	
+	
+	/**
+	 * Add element to the holder.
+	 * 
+	 * @param elem
+	 * @param constraint
+	 */
+	public void add(RenderableWithContext elem, RectConstraint constraint)
+	{
+		if (elem == null) return;
+		
+		constraint.setContext(this);
+		elem.setContext(constraint);
+		
+		elements.add(elem);
+		addChildClient(elem);
+	}
+	
+	
+	/**
+	 * Remove element from the holder
+	 * 
+	 * @param elem
+	 */
+	public void remove(RenderableWithContext elem)
+	{
+		if (elem == null) return;
+		elements.remove(elem);
+		removeChildClient(elem);
+	}
+	
 }

src/mightypork/rogue/display/constraints/RenderContext.java

@@ -1,18 +0,0 @@
-package mightypork.rogue.display.constraints;
-
-
-import mightypork.utils.math.coord.Rect;
-
-
-/**
- * Bounding box provider - context for {@link RectConstraint}
- * 
- * @author MightyPork
- */
-public interface RenderContext {
-	
-	/**
-	 * @return bounding rectangle
-	 */
-	public Rect getRect();
-}

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

@@ -1,12 +1,16 @@
 package mightypork.rogue.display.constraints;
 
 
-public interface Renderable extends WithContext {
+/**
+ * Can be rendered
+ * 
+ * @author MightyPork
+ */
+public interface Renderable {
 	
+	/**
+	 * Render on screen
+	 */
 	public void render();
 	
-	
-	@Override
-	public void setContext(RenderContext context);
-	
 }

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

@@ -0,0 +1,21 @@
+package mightypork.rogue.display.constraints;
+
+
+import mightypork.utils.math.constraints.ConstraintContext;
+import mightypork.utils.math.constraints.SettableContext;
+
+
+/**
+ * {@link Renderable} with {@link SettableContext}
+ * 
+ * @author MightyPork
+ */
+public interface RenderableWithContext extends Renderable, SettableContext {
+	
+	@Override
+	public void render();
+	
+	
+	@Override
+	public void setContext(ConstraintContext context);
+}

src/mightypork/rogue/display/constraints/WithContext.java

@@ -1,12 +0,0 @@
-package mightypork.rogue.display.constraints;
-
-
-public interface WithContext {
-	
-	/**
-	 * Assign a context
-	 * 
-	 * @param context
-	 */
-	public void setContext(RenderContext context);
-}

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

@@ -1,27 +1,27 @@
 package mightypork.rogue.display.screens.screenBouncy;
 
 
-import static mightypork.rogue.display.constraints.ConstraintFactory.*;
+import static mightypork.utils.math.constraints.ConstraintFactory.*;
 
 import java.util.Random;
 
-import mightypork.rogue.display.constraints.NumConstraint;
-import mightypork.rogue.display.constraints.RectConstraint;
-import mightypork.rogue.display.constraints.RenderContext;
-import mightypork.rogue.display.constraints.Renderable;
+import mightypork.rogue.display.constraints.RenderableWithContext;
 import mightypork.rogue.textures.Render;
 import mightypork.utils.control.timing.Updateable;
 import mightypork.utils.control.timing.animation.AnimDouble;
 import mightypork.utils.math.color.RGB;
+import mightypork.utils.math.constraints.ConstraintContext;
+import mightypork.utils.math.constraints.NumConstraint;
+import mightypork.utils.math.constraints.RectConstraint;
 import mightypork.utils.math.coord.Rect;
 import mightypork.utils.math.easing.Easing;
 
 
-public class BouncyBox implements Renderable, Updateable, RenderContext {
+public class BouncyBox implements RenderableWithContext, Updateable, ConstraintContext {
 	
 	private Random rand = new Random();
 	
-	private RenderContext context;
+	private ConstraintContext context;
 	
 	private RectConstraint box;
 	
@@ -30,17 +30,11 @@ public class BouncyBox implements Renderable, Updateable, RenderContext {
 	
 	public BouncyBox() {
 		NumConstraint side = c_height(this);
-		
 		NumConstraint move_length = c_sub(c_width(this), side);
-		
 		NumConstraint offset = c_mul(move_length, c_n(pos));
-		
 		RectConstraint abox = c_sizedBox(this, offset, c_n(0), side, side);
-		
 		NumConstraint margin = c_percent(side, c_n(10));
-		
 		RectConstraint with_margin = c_shrink(abox, margin);
-		
 		box = with_margin;
 	}
 	
@@ -60,7 +54,7 @@ public class BouncyBox implements Renderable, Updateable, RenderContext {
 	
 	
 	@Override
-	public void setContext(RenderContext context)
+	public void setContext(ConstraintContext context)
 	{
 		this.context = context;
 	}

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

@@ -1,7 +1,7 @@
 package mightypork.rogue.display.screens.screenBouncy;
 
 
-import static mightypork.rogue.display.constraints.ConstraintFactory.*;
+import static mightypork.utils.math.constraints.ConstraintFactory.*;
 
 import java.util.ArrayList;
 import java.util.List;

src/mightypork/rogue/tasks/TaskTakeScreenshot.java

@@ -12,22 +12,37 @@ import javax.imageio.ImageIO;
 
 import mightypork.rogue.Paths;
 import mightypork.rogue.display.DisplaySystem;
+import mightypork.rogue.display.DisplaySystem.Screenshot;
 import mightypork.utils.logging.Log;
 
 
 public class TaskTakeScreenshot implements Runnable {
 	
-	private BufferedImage image;
+	private Screenshot scr;
 	
 	
 	public TaskTakeScreenshot(DisplaySystem disp) {
-		this.image = disp.takeScreenshot();
+		scr = disp.takeScreenshot();
 	}
 	
 	
 	@Override
 	public void run()
 	{
+		
+		BufferedImage image = new BufferedImage(scr.width, scr.height, BufferedImage.TYPE_INT_RGB);
+		
+		// convert to a buffered image
+		for (int x = 0; x < scr.width; x++) {
+			for (int y = 0; y < scr.height; y++) {
+				int i = (x + (scr.width * y)) * scr.bpp;
+				int r = scr.bytes.get(i) & 0xFF;
+				int g = scr.bytes.get(i + 1) & 0xFF;
+				int b = scr.bytes.get(i + 2) & 0xFF;
+				image.setRGB(x, scr.height - (y + 1), (0xFF << 24) | (r << 16) | (g << 8) | b);
+			}
+		}
+		
 		String fname = getUniqueScreenshotName();
 		
 		// generate unique filename

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

@@ -8,13 +8,13 @@ import mightypork.utils.logging.Log;
 
 
 /**
- * An event bus, accommodating multiple {@link MessageChannel}s.
+ * An event bus, accommodating multiple {@link EventChannel}s.
  * 
  * @author MightyPork
  */
-final public class MessageBus {
+final public class EventBus {
 	
-	private Collection<MessageChannel<?, ?>> channels = new LinkedHashSet<MessageChannel<?, ?>>();
+	private Collection<EventChannel<?, ?>> channels = new LinkedHashSet<EventChannel<?, ?>>();
 	
 	private Collection<Object> clients = new LinkedHashSet<Object>();
 	
@@ -22,16 +22,16 @@ final public class MessageBus {
 	
 	
 	/**
-	 * Add a {@link MessageChannel} to this bus.<br>
+	 * Add a {@link EventChannel} to this bus.<br>
 	 * If a channel of matching types is already added, it is returned instead.
 	 * 
 	 * @param channel channel to be added
 	 * @return the channel that's now in the bus
 	 */
-	public MessageChannel<?, ?> addChannel(MessageChannel<?, ?> channel)
+	public EventChannel<?, ?> addChannel(EventChannel<?, ?> channel)
 	{
 		// if the channel already exists, return this instance instead.
-		for (MessageChannel<?, ?> ch : channels) {
+		for (EventChannel<?, ?> ch : channels) {
 			if (ch.equals(channel)) {
 				Log.w("Channel of type " + channel + " already registered.");
 				return ch;
@@ -45,11 +45,11 @@ final public class MessageBus {
 	
 	
 	/**
-	 * Remove a {@link MessageChannel} from this bus
+	 * Remove a {@link EventChannel} from this bus
 	 * 
 	 * @param channel true if channel was removed
 	 */
-	public void removeChannel(MessageChannel<?, ?> channel)
+	public void removeChannel(EventChannel<?, ?> channel)
 	{
 		channels.remove(channel);
 	}
@@ -65,7 +65,7 @@ final public class MessageBus {
 	{
 		boolean sent = false;
 		
-		for (MessageChannel<?, ?> b : channels) {
+		for (EventChannel<?, ?> b : channels) {
 			sent |= b.broadcast(message, clients);
 		}
 		
@@ -121,9 +121,9 @@ final public class MessageBus {
 	 * @param clientClass client type
 	 * @return the created channel instance
 	 */
-	public <F_MESSAGE extends Handleable<F_CLIENT>, F_CLIENT> MessageChannel<?, ?> createChannel(Class<F_MESSAGE> messageClass, Class<F_CLIENT> clientClass)
+	public <F_EVENT extends Handleable<F_CLIENT>, F_CLIENT> EventChannel<?, ?> createChannel(Class<F_EVENT> messageClass, Class<F_CLIENT> clientClass)
 	{
-		MessageChannel<F_MESSAGE, F_CLIENT> bc = new MessageChannel<F_MESSAGE, F_CLIENT>(messageClass, clientClass);
+		EventChannel<F_EVENT, F_CLIENT> bc = new EventChannel<F_EVENT, F_CLIENT>(messageClass, clientClass);
 		return addChannel(bc);
 	}
 	

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

@@ -10,19 +10,19 @@ import mightypork.utils.logging.Log;
 
 
 /**
- * Message channel, module of {@link MessageBus}
+ * Message channel, module of {@link EventBus}
  * 
  * @author MightyPork
- * @param <MESSAGE> message type
+ * @param <EVENT> message type
  * @param <CLIENT> client (subscriber) type
  */
-final public class MessageChannel<MESSAGE extends Handleable<CLIENT>, CLIENT> {
+final public class EventChannel<EVENT extends Handleable<CLIENT>, CLIENT> {
 	
 	private Class<CLIENT> clientClass;
-	private Class<MESSAGE> messageClass;
+	private Class<EVENT> messageClass;
 	
 	
-	public MessageChannel(Class<MESSAGE> messageClass, Class<CLIENT> clientClass) {
+	public EventChannel(Class<EVENT> messageClass, Class<CLIENT> clientClass) {
 		
 		if (messageClass == null || clientClass == null) throw new NullPointerException("Null Message or Client class.");
 		
@@ -43,7 +43,7 @@ final public class MessageChannel<MESSAGE extends Handleable<CLIENT>, CLIENT> {
 	{
 		if (!canBroadcast(message)) return false;
 		
-		MESSAGE evt = messageClass.cast(message);
+		EVENT evt = messageClass.cast(message);
 		
 		doBroadcast(evt, clients, new HashSet<Object>());
 		
@@ -51,7 +51,7 @@ final public class MessageChannel<MESSAGE extends Handleable<CLIENT>, CLIENT> {
 	}
 	
 	
-	private void doBroadcast(MESSAGE message, Collection<Object> clients, Collection<Object> processed)
+	private void doBroadcast(EVENT message, Collection<Object> clients, Collection<Object> processed)
 	{
 		for (Object client : clients) {
 			
@@ -87,7 +87,7 @@ final public class MessageChannel<MESSAGE extends Handleable<CLIENT>, CLIENT> {
 	 * @param message message to send
 	 */
 	@SuppressWarnings("unchecked")
-	private void sendTo(Object client, MESSAGE message)
+	private void sendTo(Object client, EVENT message)
 	{
 		if (clientClass.isInstance(client)) {
 			((Handleable<CLIENT>) message).handleBy((CLIENT) client);
@@ -97,7 +97,7 @@ final public class MessageChannel<MESSAGE extends Handleable<CLIENT>, CLIENT> {
 	
 	/**
 	 * Check if the given message can be broadcasted by this
-	 * {@link MessageChannel}
+	 * {@link EventChannel}
 	 * 
 	 * @param message event object
 	 * @return can be broadcasted
@@ -124,8 +124,8 @@ final public class MessageChannel<MESSAGE extends Handleable<CLIENT>, CLIENT> {
 	{
 		if (this == obj) return true;
 		if (obj == null) return false;
-		if (!(obj instanceof MessageChannel)) return false;
-		MessageChannel<?, ?> other = (MessageChannel<?, ?>) obj;
+		if (!(obj instanceof EventChannel)) return false;
+		EventChannel<?, ?> other = (EventChannel<?, ?>) obj;
 		if (clientClass == null) {
 			if (other.clientClass != null) return false;
 		} else if (!clientClass.equals(other.clientClass)) return false;
@@ -150,9 +150,9 @@ final public class MessageChannel<MESSAGE extends Handleable<CLIENT>, CLIENT> {
 	 * @param clientClass client class
 	 * @return the broadcaster
 	 */
-	public static <F_MESSAGE extends Handleable<F_CLIENT>, F_CLIENT> MessageChannel<F_MESSAGE, F_CLIENT> create(Class<F_MESSAGE> messageClass, Class<F_CLIENT> clientClass)
+	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 MessageChannel<F_MESSAGE, F_CLIENT>(messageClass, clientClass);
+		return new EventChannel<F_EVENT, F_CLIENT>(messageClass, clientClass);
 	}
 	
 }

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

@@ -4,11 +4,19 @@ package mightypork.utils.control.timing;
 import mightypork.utils.control.bus.Handleable;
 
 
+/**
+ * Delta timing update event
+ * 
+ * @author MightyPork
+ */
 public class UpdateEvent implements Handleable<Updateable> {
 	
 	private final double deltaTime;
 	
 	
+	/**
+	 * @param deltaTime time since last update (sec)
+	 */
 	public UpdateEvent(double deltaTime) {
 		this.deltaTime = deltaTime;
 	}

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

@@ -2,7 +2,7 @@ package mightypork.utils.control.timing;
 
 
 /**
- * object supporting delta timing
+ * Uses delta timing
  * 
  * @author MightyPork
  */

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

@@ -1,35 +1,32 @@
-package mightypork.rogue.display.constraints;
+package mightypork.utils.math.constraints;
 
 
 import mightypork.utils.math.coord.Coord;
 
 
 /**
- * A constraint based on a given {@link RenderContext}
+ * A constraint based on a given {@link ConstraintContext}
  * 
  * @author MightyPork
  */
-public abstract class BaseConstraint implements WithContext {
+public abstract class BaseConstraint implements SettableContext {
 	
-	protected RenderContext context = null;
+	private ConstraintContext context = null;
 	
 	
-	public BaseConstraint(RenderContext context) {
+	public BaseConstraint(ConstraintContext context) {
 		this.context = context;
 	}
 	
 	
 	@Override
-	public void setContext(RenderContext context)
+	public void setContext(ConstraintContext context)
 	{
 		this.context = context;
 	}
 	
 	
-	/**
-	 * @return context
-	 */
-	public RenderContext getContext()
+	public ConstraintContext getContext()
 	{
 		return context;
 	}

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

@@ -0,0 +1,20 @@
+package mightypork.utils.math.constraints;
+
+
+import mightypork.utils.math.coord.Rect;
+
+
+/**
+ * Context for constraints, with a bounding {@link Rect}.
+ * 
+ * @author MightyPork
+ */
+public interface ConstraintContext {
+	
+	/**
+	 * Get context boundary
+	 * 
+	 * @return bounding rectangle
+	 */
+	public Rect getRect();
+}

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

@@ -1,4 +1,4 @@
-package mightypork.rogue.display.constraints;
+package mightypork.utils.math.constraints;
 
 
 import mightypork.utils.control.timing.animation.AnimDouble;
@@ -66,14 +66,14 @@ public class ConstraintFactory {
 	}
 	
 	
-	public static RectConstraint c_round(RenderContext context)
+	public static RectConstraint c_round(ConstraintContext context)
 	{
 		return new RectConstraint(context) {
 			
 			@Override
 			public Rect getRect()
 			{
-				return context.getRect().round();
+				return getContext().getRect().round();
 			}
 		};
 	}
@@ -209,7 +209,7 @@ public class ConstraintFactory {
 	}
 	
 	
-	public static NumConstraint c_width(final RenderContext context)
+	public static NumConstraint c_width(final ConstraintContext context)
 	{
 		return new NumConstraint(context) {
 			
@@ -222,7 +222,7 @@ public class ConstraintFactory {
 	}
 	
 	
-	public static NumConstraint c_height(final RenderContext context)
+	public static NumConstraint c_height(final ConstraintContext context)
 	{
 		return new NumConstraint(context) {
 			
@@ -235,14 +235,14 @@ public class ConstraintFactory {
 	}
 	
 	
-	public static RectConstraint c_row(RenderContext context, final int rows, final int index)
+	public static RectConstraint c_row(ConstraintContext context, final int rows, final int index)
 	{
 		return new RectConstraint(context) {
 			
 			@Override
 			public Rect getRect()
 			{
-				double height = context.getRect().getSize().y;
+				double height = getContext().getRect().getSize().y;
 				double perRow = height / rows;
 				
 				return Rect.fromSize(getOrigin().add(0, perRow * (rows - index - 1)), getSize().setY(perRow));
@@ -251,14 +251,14 @@ public class ConstraintFactory {
 	}
 	
 	
-	public static RectConstraint c_column(RenderContext context, final int columns, final int index)
+	public static RectConstraint c_column(ConstraintContext context, final int columns, final int index)
 	{
 		return new RectConstraint(context) {
 			
 			@Override
 			public Rect getRect()
 			{
-				double width = context.getRect().getSize().x;
+				double width = getContext().getRect().getSize().x;
 				double perCol = width / columns;
 				
 				return Rect.fromSize(getOrigin().add(perCol * index, 0), getSize().setX(perCol));
@@ -267,57 +267,57 @@ public class ConstraintFactory {
 	}
 	
 	
-	public static RectConstraint c_shrink(RenderContext context, NumConstraint shrink)
+	public static RectConstraint c_shrink(ConstraintContext context, NumConstraint shrink)
 	{
 		return c_shrink(context, shrink, shrink, shrink, shrink);
 	}
 	
 	
-	public static RectConstraint c_shrink(RenderContext context, NumConstraint horiz, NumConstraint vert)
+	public static RectConstraint c_shrink(ConstraintContext context, NumConstraint horiz, NumConstraint vert)
 	{
 		return c_shrink(context, horiz, vert, horiz, vert);
 	}
 	
 	
-	public static RectConstraint c_shrink(RenderContext context, final NumConstraint left, final NumConstraint top, final NumConstraint right, final NumConstraint bottom)
+	public static RectConstraint c_shrink(ConstraintContext context, final NumConstraint left, final NumConstraint top, final NumConstraint right, final NumConstraint bottom)
 	{
 		return new RectConstraint(context) {
 			
 			@Override
 			public Rect getRect()
 			{
-				return context.getRect().shrink(left.getValue(), top.getValue(), right.getValue(), bottom.getValue());
+				return getContext().getRect().shrink(left.getValue(), top.getValue(), right.getValue(), bottom.getValue());
 			}
 		};
 	}
 	
 	
-	public static RectConstraint c_grow(RenderContext context, NumConstraint grow)
+	public static RectConstraint c_grow(ConstraintContext context, NumConstraint grow)
 	{
 		return c_grow(context, grow, grow, grow, grow);
 	}
 	
 	
-	public static RectConstraint c_grow(RenderContext context, NumConstraint horiz, NumConstraint vert)
+	public static RectConstraint c_grow(ConstraintContext context, NumConstraint horiz, NumConstraint vert)
 	{
 		return c_grow(context, horiz, vert, horiz, vert);
 	}
 	
 	
-	public static RectConstraint c_grow(RenderContext context, final NumConstraint left, final NumConstraint top, final NumConstraint right, final NumConstraint bottom)
+	public static RectConstraint c_grow(ConstraintContext context, final NumConstraint left, final NumConstraint top, final NumConstraint right, final NumConstraint bottom)
 	{
 		return new RectConstraint(context) {
 			
 			@Override
 			public Rect getRect()
 			{
-				return context.getRect().grow(left.getValue(), top.getValue(), right.getValue(), bottom.getValue());
+				return getContext().getRect().grow(left.getValue(), top.getValue(), right.getValue(), bottom.getValue());
 			}
 		};
 	}
 	
 	
-	public static RectConstraint c_tile(RenderContext context, final int rows, final int cols, final int left, final int top)
+	public static RectConstraint c_tile(ConstraintContext context, final int rows, final int cols, final int left, final int top)
 	{
 		return new RectConstraint(context) {
 			
@@ -335,7 +335,7 @@ public class ConstraintFactory {
 	}
 	
 	
-	public static RectConstraint c_sizedBox(RenderContext context, final NumConstraint left, final NumConstraint bottom, final NumConstraint width, final NumConstraint height)
+	public static RectConstraint c_sizedBox(ConstraintContext context, final NumConstraint left, final NumConstraint bottom, final NumConstraint width, final NumConstraint height)
 	{
 		return new RectConstraint(context) {
 			
@@ -357,7 +357,7 @@ public class ConstraintFactory {
 	}
 	
 	
-	public static RectConstraint c_posBox(RenderContext context, final NumConstraint left, final NumConstraint bottom, final NumConstraint right, final NumConstraint top)
+	public static RectConstraint c_posBox(ConstraintContext context, final NumConstraint left, final NumConstraint bottom, final NumConstraint right, final NumConstraint top)
 	{
 		return new RectConstraint(context) {
 			
@@ -379,14 +379,14 @@ public class ConstraintFactory {
 	}
 	
 	
-	public static RectConstraint c_move(RenderContext context, final NumConstraint x, final NumConstraint y)
+	public static RectConstraint c_move(ConstraintContext context, final NumConstraint x, final NumConstraint y)
 	{
 		return new RectConstraint(context) {
 			
 			@Override
 			public Rect getRect()
 			{
-				return context.getRect().add(x.getValue(), y.getValue());
+				return getContext().getRect().add(x.getValue(), y.getValue());
 			}
 		};
 	}

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

@@ -1,4 +1,4 @@
-package mightypork.rogue.display.constraints;
+package mightypork.utils.math.constraints;
 
 
 /**
@@ -8,7 +8,7 @@ package mightypork.rogue.display.constraints;
  */
 public abstract class NumConstraint extends BaseConstraint {
 	
-	public NumConstraint(RenderContext context) {
+	public NumConstraint(ConstraintContext context) {
 		super(context);
 	}
 	

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

@@ -1,17 +1,17 @@
-package mightypork.rogue.display.constraints;
+package mightypork.utils.math.constraints;
 
 
 import mightypork.utils.math.coord.Rect;
 
 
 /**
- * Constraint that provides a rect (RenderContext)
+ * Constraint that provides a rect ({@link ConstraintContext})
  * 
  * @author MightyPork
  */
-public abstract class RectConstraint extends BaseConstraint implements RenderContext {
+public abstract class RectConstraint extends BaseConstraint implements ConstraintContext {
 	
-	public RectConstraint(RenderContext context) {
+	public RectConstraint(ConstraintContext context) {
 		super(context);
 	}
 	

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

@@ -0,0 +1,17 @@
+package mightypork.utils.math.constraints;
+
+
+/**
+ * Can be assigned a context / changed context
+ * 
+ * @author MightyPork
+ */
+public interface SettableContext {
+	
+	/**
+	 * Assign a context
+	 * 
+	 * @param context context
+	 */
+	public void setContext(ConstraintContext context);
+}