diff --git a/src/mightypork/gamecore/audio/SoundSystem.java b/src/mightypork/gamecore/audio/SoundSystem.java
index dc361bf..479d880 100644
--- a/src/mightypork/gamecore/audio/SoundSystem.java
+++ b/src/mightypork/gamecore/audio/SoundSystem.java
@@ -13,8 +13,7 @@ import mightypork.gamecore.control.bus.events.ResourceLoadRequest;
 import mightypork.gamecore.control.timing.Updateable;
 import mightypork.utils.math.Calc.Buffers;
 import mightypork.utils.math.vect.Vect;
-import mightypork.utils.math.vect.VectMutable;
-import mightypork.utils.math.vect.VectView;
+import mightypork.utils.math.vect.VectVar;
 
 import org.lwjgl.openal.AL;
 import org.lwjgl.openal.AL10;
@@ -31,7 +30,7 @@ public class SoundSystem extends RootBusNode implements Updateable {
 	private static final Vect INITIAL_LISTENER_POS = Vect.ZERO;
 	private static final int MAX_SOURCES = 256;
 	
-	private static VectMutable listener = VectMutable.zero();
+	private static VectVar listener = Vect.makeVar();
 	private static boolean soundSystemInited = false;
 	
 	
@@ -60,9 +59,9 @@ public class SoundSystem extends RootBusNode implements Updateable {
 	/**
 	 * @return listener coordinate
 	 */
-	public static VectView getListener()
+	public static Vect getListener()
 	{
-		return listener.view();
+		return listener;
 	}
 	
 	// -- instance --
diff --git a/src/mightypork/gamecore/control/bus/events/MouseButtonEvent.java b/src/mightypork/gamecore/control/bus/events/MouseButtonEvent.java
index 1623f0d..6cc9493 100644
--- a/src/mightypork/gamecore/control/bus/events/MouseButtonEvent.java
+++ b/src/mightypork/gamecore/control/bus/events/MouseButtonEvent.java
@@ -3,7 +3,6 @@ package mightypork.gamecore.control.bus.events;
 
 import mightypork.utils.math.constraints.RectBound;
 import mightypork.utils.math.vect.Vect;
-import mightypork.utils.math.vect.VectView;
 
 
 /**
@@ -78,9 +77,9 @@ public class MouseButtonEvent implements Event<MouseButtonEvent.Listener> {
 	/**
 	 * @return mouse position when the event occurred
 	 */
-	public VectView getPos()
+	public Vect getPos()
 	{
-		return pos.view();
+		return pos;
 	}
 	
 	
diff --git a/src/mightypork/gamecore/control/bus/events/MouseMotionEvent.java b/src/mightypork/gamecore/control/bus/events/MouseMotionEvent.java
index c953ec6..a1e230f 100644
--- a/src/mightypork/gamecore/control/bus/events/MouseMotionEvent.java
+++ b/src/mightypork/gamecore/control/bus/events/MouseMotionEvent.java
@@ -3,7 +3,7 @@ package mightypork.gamecore.control.bus.events;
 
 import mightypork.gamecore.control.bus.events.types.UnloggedEvent;
 import mightypork.utils.math.vect.Vect;
-import mightypork.utils.math.vect.VectVal;
+import mightypork.utils.math.vect.VectConst;
 
 
 /**
@@ -14,8 +14,8 @@ import mightypork.utils.math.vect.VectVal;
 @UnloggedEvent
 public class MouseMotionEvent implements Event<MouseMotionEvent.Listener> {
 	
-	private final VectVal move;
-	private final VectVal pos;
+	private final VectConst move;
+	private final VectConst pos;
 	
 	
 	/**
@@ -23,15 +23,15 @@ public class MouseMotionEvent implements Event<MouseMotionEvent.Listener> {
 	 * @param move move vector
 	 */
 	public MouseMotionEvent(Vect pos, Vect move) {
-		this.move = move.copy();
-		this.pos = pos.copy();
+		this.move = move.freeze();
+		this.pos = pos.freeze();
 	}
 	
 	
 	/**
 	 * @return movement since last {@link MouseMotionEvent}
 	 */
-	public VectVal getMove()
+	public VectConst getMove()
 	{
 		return move;
 	}
@@ -40,7 +40,7 @@ public class MouseMotionEvent implements Event<MouseMotionEvent.Listener> {
 	/**
 	 * @return current mouse position
 	 */
-	public VectVal getPos()
+	public VectConst getPos()
 	{
 		return pos;
 	}
diff --git a/src/mightypork/gamecore/control/bus/events/ScreenChangeEvent.java b/src/mightypork/gamecore/control/bus/events/ScreenChangeEvent.java
index f49360b..c41aa36 100644
--- a/src/mightypork/gamecore/control/bus/events/ScreenChangeEvent.java
+++ b/src/mightypork/gamecore/control/bus/events/ScreenChangeEvent.java
@@ -2,7 +2,6 @@ package mightypork.gamecore.control.bus.events;
 
 
 import mightypork.utils.math.vect.Vect;
-import mightypork.utils.math.vect.VectView;
 
 
 /**
@@ -50,9 +49,9 @@ public class ScreenChangeEvent implements Event<ScreenChangeEvent.Listener> {
 	/**
 	 * @return new screen size
 	 */
-	public VectView getScreenSize()
+	public Vect getScreenSize()
 	{
-		return screenSize.view();
+		return screenSize;
 	}
 	
 	
diff --git a/src/mightypork/gamecore/gui/components/AbstractComponent.java b/src/mightypork/gamecore/gui/components/AbstractComponent.java
index 7707faa..6d04520 100644
--- a/src/mightypork/gamecore/gui/components/AbstractComponent.java
+++ b/src/mightypork/gamecore/gui/components/AbstractComponent.java
@@ -4,7 +4,7 @@ package mightypork.gamecore.gui.components;
 import mightypork.gamecore.control.AppAccess;
 import mightypork.gamecore.control.AppSubModule;
 import mightypork.utils.math.constraints.RectBound;
-import mightypork.utils.math.rect.RectView;
+import mightypork.utils.math.rect.Rect;
 
 
 public abstract class AbstractComponent extends AppSubModule implements PluggableRenderable {
@@ -25,7 +25,7 @@ public abstract class AbstractComponent extends AppSubModule implements Pluggabl
 	
 	
 	@Override
-	public RectView getRect()
+	public Rect getRect()
 	{
 		return context.getRect();
 	}
diff --git a/src/mightypork/gamecore/gui/components/PluggableRenderable.java b/src/mightypork/gamecore/gui/components/PluggableRenderable.java
index b8fa952..e9558ac 100644
--- a/src/mightypork/gamecore/gui/components/PluggableRenderable.java
+++ b/src/mightypork/gamecore/gui/components/PluggableRenderable.java
@@ -3,7 +3,7 @@ package mightypork.gamecore.gui.components;
 
 import mightypork.utils.math.constraints.PluggableRectBound;
 import mightypork.utils.math.constraints.RectBound;
-import mightypork.utils.math.rect.RectView;
+import mightypork.utils.math.rect.Rect;
 
 
 /**
@@ -18,7 +18,7 @@ public interface PluggableRenderable extends Renderable, PluggableRectBound {
 	
 	
 	@Override
-	RectView getRect();
+	Rect getRect();
 	
 	
 	@Override
diff --git a/src/mightypork/gamecore/gui/components/painters/AbstractPainter.java b/src/mightypork/gamecore/gui/components/painters/AbstractPainter.java
index ef735e2..83226b2 100644
--- a/src/mightypork/gamecore/gui/components/painters/AbstractPainter.java
+++ b/src/mightypork/gamecore/gui/components/painters/AbstractPainter.java
@@ -5,7 +5,7 @@ import mightypork.gamecore.gui.components.PluggableRenderable;
 import mightypork.gamecore.gui.components.Renderable;
 import mightypork.utils.math.constraints.RectBound;
 import mightypork.utils.math.constraints.RectBoundAdapter;
-import mightypork.utils.math.rect.RectView;
+import mightypork.utils.math.rect.Rect;
 
 
 /**
@@ -20,7 +20,7 @@ public abstract class AbstractPainter extends RectBoundAdapter implements Plugga
 	
 	
 	@Override
-	public RectView getRect()
+	public Rect getRect()
 	{
 		return super.getRect();
 	}
diff --git a/src/mightypork/gamecore/gui/components/painters/TextPainter.java b/src/mightypork/gamecore/gui/components/painters/TextPainter.java
index 6d29fe9..331f57d 100644
--- a/src/mightypork/gamecore/gui/components/painters/TextPainter.java
+++ b/src/mightypork/gamecore/gui/components/painters/TextPainter.java
@@ -5,9 +5,9 @@ import mightypork.gamecore.render.fonts.FontRenderer;
 import mightypork.gamecore.render.fonts.FontRenderer.Align;
 import mightypork.gamecore.render.fonts.GLFont;
 import mightypork.utils.math.color.RGB;
-import mightypork.utils.math.rect.RectView;
+import mightypork.utils.math.rect.Rect;
 import mightypork.utils.math.vect.Vect;
-import mightypork.utils.math.vect.VectMutable;
+import mightypork.utils.math.vect.VectVar;
 import mightypork.utils.string.StringProvider;
 import mightypork.utils.string.StringProvider.StringWrapper;
 
@@ -28,7 +28,7 @@ public class TextPainter extends AbstractPainter {
 	private boolean shadow;
 	
 	private RGB shadowColor = RGB.BLACK;
-	private final VectMutable shadowOffset = VectMutable.make(1, 1);
+	private final VectVar shadowOffset = Vect.makeVar(1, 1);
 	
 	
 	/**
@@ -84,7 +84,7 @@ public class TextPainter extends AbstractPainter {
 		if (text == null) return;
 		
 		final String str = text.getString();
-		final RectView rect = getRect();
+		final Rect rect = getRect();
 		
 		if (shadow) {
 			font.draw(str, rect.move(shadowOffset), align, shadowColor);
diff --git a/src/mightypork/gamecore/gui/screens/Screen.java b/src/mightypork/gamecore/gui/screens/Screen.java
index 54dd9c8..94f0e45 100644
--- a/src/mightypork/gamecore/gui/screens/Screen.java
+++ b/src/mightypork/gamecore/gui/screens/Screen.java
@@ -11,7 +11,7 @@ import mightypork.gamecore.input.KeyStroke;
 import mightypork.gamecore.render.Render;
 import mightypork.utils.annotations.DefaultImpl;
 import mightypork.utils.math.constraints.RectBound;
-import mightypork.utils.math.rect.RectView;
+import mightypork.utils.math.rect.Rect;
 import mightypork.utils.math.vect.Vect;
 
 
@@ -104,7 +104,7 @@ public abstract class Screen extends AppSubModule implements Renderable, KeyBind
 	
 	
 	@Override
-	public RectView getRect()
+	public Rect getRect()
 	{
 		return getDisplay().getRect();
 	}
@@ -169,4 +169,17 @@ public abstract class Screen extends AppSubModule implements Renderable, KeyBind
 	 * @return screen identifier to be used for requests.
 	 */
 	public abstract String getName();
+	
+	
+	protected final Rect bounds()
+	{
+		return getRect();
+	}
+	
+	
+	protected final Vect mouse()
+	{
+		return getInput().getMousePos();
+	}
+	
 }
diff --git a/src/mightypork/gamecore/gui/screens/ScreenLayer.java b/src/mightypork/gamecore/gui/screens/ScreenLayer.java
index 6f2ec83..9dd468b 100644
--- a/src/mightypork/gamecore/gui/screens/ScreenLayer.java
+++ b/src/mightypork/gamecore/gui/screens/ScreenLayer.java
@@ -8,9 +8,8 @@ import mightypork.gamecore.input.KeyBindingPool;
 import mightypork.gamecore.input.KeyStroke;
 import mightypork.utils.annotations.DefaultImpl;
 import mightypork.utils.math.constraints.RectBound;
-import mightypork.utils.math.rect.RectView;
+import mightypork.utils.math.rect.Rect;
 import mightypork.utils.math.vect.Vect;
-import mightypork.utils.math.vect.VectView;
 
 
 /**
@@ -26,11 +25,6 @@ public abstract class ScreenLayer extends AppSubModule implements Comparable<Scr
 	
 	private final KeyBindingPool keybindings = new KeyBindingPool();
 	
-	/** Mouse position constraint */
-	protected final VectView cMousePos = getInput().getMousePos();
-	/** Screen size constraint */
-	protected final VectView cScreenSize = getDisplay().getSize();
-	
 	
 	/**
 	 * @param screen parent screen
@@ -67,7 +61,7 @@ public abstract class ScreenLayer extends AppSubModule implements Comparable<Scr
 	
 	
 	@Override
-	public RectView getRect()
+	public Rect getRect()
 	{
 		return screen.getRect();
 	}
@@ -129,4 +123,16 @@ public abstract class ScreenLayer extends AppSubModule implements Comparable<Scr
 	 */
 	public abstract int getPriority();
 	
+	
+	protected final Rect bounds()
+	{
+		return screen.bounds();
+	}
+	
+	
+	protected final Vect mouse()
+	{
+		return screen.mouse();
+	}
+	
 }
diff --git a/src/mightypork/gamecore/input/InputSystem.java b/src/mightypork/gamecore/input/InputSystem.java
index 93230cf..80b7ca9 100644
--- a/src/mightypork/gamecore/input/InputSystem.java
+++ b/src/mightypork/gamecore/input/InputSystem.java
@@ -9,8 +9,8 @@ import mightypork.gamecore.control.bus.events.MouseMotionEvent;
 import mightypork.gamecore.control.timing.Updateable;
 import mightypork.rogue.events.ActionRequest;
 import mightypork.rogue.events.ActionRequest.RequestType;
-import mightypork.utils.math.vect.VectMutable;
-import mightypork.utils.math.vect.VectView;
+import mightypork.utils.math.vect.Vect;
+import mightypork.utils.math.vect.VectVar;
 
 import org.lwjgl.LWJGLException;
 import org.lwjgl.input.Keyboard;
@@ -29,7 +29,7 @@ public class InputSystem extends RootBusNode implements Updateable, KeyBinder {
 	private final KeyBindingPool keybindings;
 	
 	/** Current mouse position */
-	private final VectView mousePos = new VectView() {
+	private final Vect mousePos = new Vect() {
 		
 		@Override
 		public double x()
@@ -103,8 +103,8 @@ public class InputSystem extends RootBusNode implements Updateable, KeyBinder {
 	}
 	
 	// counters as fields to save memory.
-	private final VectMutable mouseMove = VectMutable.zero();
-	private final VectMutable mouseLastPos = VectMutable.zero();
+	private final VectVar mouseMove = VectVar.makeVar();
+	private final VectVar mouseLastPos = VectVar.makeVar();
 	
 	
 	@Override
@@ -140,13 +140,13 @@ public class InputSystem extends RootBusNode implements Updateable, KeyBinder {
 	}
 	
 	
-	private void onMouseEvent(VectMutable moveSum, VectMutable lastPos)
+	private void onMouseEvent(VectVar moveSum, VectVar lastPos)
 	{
 		final int button = Mouse.getEventButton();
 		final boolean down = Mouse.getEventButtonState();
 		
-		final VectMutable pos = VectMutable.make(Mouse.getEventX(), Mouse.getEventY());
-		final VectMutable move = VectMutable.make(Mouse.getEventDX(), Mouse.getEventDY());
+		final VectVar pos = Vect.makeVar(Mouse.getEventX(), Mouse.getEventY());
+		final VectVar move = Vect.makeVar(Mouse.getEventDX(), Mouse.getEventDY());
 		
 		final int wheeld = Mouse.getEventDWheel();
 		
@@ -155,7 +155,7 @@ public class InputSystem extends RootBusNode implements Updateable, KeyBinder {
 		move.mul(1, -1, 1);
 		
 		if (button != -1 || wheeld != 0) {
-			getEventBus().send(new MouseButtonEvent(pos.copy(), button, down, wheeld));
+			getEventBus().send(new MouseButtonEvent(pos.freeze(), button, down, wheeld));
 		}
 		
 		moveSum.add(move);
@@ -178,7 +178,7 @@ public class InputSystem extends RootBusNode implements Updateable, KeyBinder {
 	 * 
 	 * @return mouse position
 	 */
-	public VectView getMousePos()
+	public Vect getMousePos()
 	{
 		return mousePos;
 	}
diff --git a/src/mightypork/gamecore/render/DisplaySystem.java b/src/mightypork/gamecore/render/DisplaySystem.java
index d017bc2..ff052b3 100644
--- a/src/mightypork/gamecore/render/DisplaySystem.java
+++ b/src/mightypork/gamecore/render/DisplaySystem.java
@@ -11,9 +11,8 @@ import mightypork.gamecore.control.bus.events.ScreenChangeEvent;
 import mightypork.gamecore.control.timing.FpsMeter;
 import mightypork.utils.logging.Log;
 import mightypork.utils.math.constraints.RectBound;
-import mightypork.utils.math.rect.RectVal;
-import mightypork.utils.math.rect.RectView;
-import mightypork.utils.math.vect.VectView;
+import mightypork.utils.math.rect.Rect;
+import mightypork.utils.math.vect.Vect;
 
 import org.lwjgl.BufferUtils;
 import org.lwjgl.LWJGLException;
@@ -33,7 +32,7 @@ public class DisplaySystem extends AppModule implements RectBound {
 	private FpsMeter fpsMeter;
 	
 	/** Current screen size */
-	private final VectView screenSize = new VectView() {
+	private final Vect screenSize = new Vect() {
 		
 		@Override
 		public double y()
@@ -49,6 +48,8 @@ public class DisplaySystem extends AppModule implements RectBound {
 		}
 	};
 	
+	private final Rect rect = Rect.make(screenSize);
+	
 	
 	/**
 	 * @param app app access
@@ -189,7 +190,7 @@ public class DisplaySystem extends AppModule implements RectBound {
 	 * 
 	 * @return size
 	 */
-	public VectView getSize()
+	public Vect getSize()
 	{
 		return screenSize;
 	}
@@ -240,9 +241,9 @@ public class DisplaySystem extends AppModule implements RectBound {
 	
 	
 	@Override
-	public RectView getRect()
+	public Rect getRect()
 	{
-		return RectVal.make(getSize());
+		return rect;
 	}
 	
 	
@@ -255,7 +256,7 @@ public class DisplaySystem extends AppModule implements RectBound {
 	}
 	
 	
-	public VectView getCenter()
+	public Vect getCenter()
 	{
 		return getSize().half();
 	}
diff --git a/src/mightypork/gamecore/render/Render.java b/src/mightypork/gamecore/render/Render.java
index 57dd6d4..3852bc5 100644
--- a/src/mightypork/gamecore/render/Render.java
+++ b/src/mightypork/gamecore/render/Render.java
@@ -10,10 +10,8 @@ import mightypork.utils.files.FileUtils;
 import mightypork.utils.logging.Log;
 import mightypork.utils.math.color.RGB;
 import mightypork.utils.math.rect.Rect;
-import mightypork.utils.math.rect.RectView;
 import mightypork.utils.math.vect.Vect;
-import mightypork.utils.math.vect.VectVal;
-import mightypork.utils.math.vect.VectView;
+import mightypork.utils.math.vect.VectConst;
 
 import org.lwjgl.opengl.GL11;
 import org.newdawn.slick.opengl.Texture;
@@ -29,9 +27,9 @@ import org.newdawn.slick.util.ResourceLoader;
  */
 public class Render {
 	
-	public static final VectView AXIS_X = VectVal.make(1, 0, 0);
-	public static final VectView AXIS_Y = VectVal.make(0, 1, 0);
-	public static final VectView AXIS_Z = VectVal.make(0, 0, 1);
+	public static final VectConst AXIS_X = Vect.make(1, 0, 0);
+	public static final VectConst AXIS_Y = Vect.make(0, 1, 0);
+	public static final VectConst AXIS_Z = Vect.make(0, 0, 1);
 	
 	
 	/**
@@ -214,7 +212,7 @@ public class Render {
 	 */
 	public static void rotate(double angle, Vect axis)
 	{
-		final Vect vec = axis.view().norm(1);
+		final Vect vec = axis.norm(1);
 		glRotated(angle, vec.x(), vec.y(), vec.z());
 	}
 	
@@ -352,12 +350,10 @@ public class Render {
 	 */
 	public static void quad(Rect quad)
 	{
-		final RectView rv = quad.view();
-		
-		final double x1 = rv.left().value();
-		final double y1 = rv.top().value();
-		final double x2 = rv.right().value();
-		final double y2 = rv.bottom().value();
+		final double x1 = quad.left().value();
+		final double y1 = quad.top().value();
+		final double x2 = quad.right().value();
+		final double y2 = quad.bottom().value();
 		
 		// draw with color
 		unbindTexture();
@@ -394,15 +390,15 @@ public class Render {
 	 */
 	public static void quadUV_nobound(Rect quad, Rect uvs)
 	{
-		final double x1 = quad.left();
-		final double y1 = quad.top();
-		final double x2 = quad.right();
-		final double y2 = quad.bottom();
+		final double x1 = quad.left().value();
+		final double y1 = quad.top().value();
+		final double x2 = quad.right().value();
+		final double y2 = quad.bottom().value();
 		
-		final double tx1 = uvs.left();
-		final double ty1 = uvs.top();
-		final double tx2 = uvs.right();
-		final double ty2 = uvs.bottom();
+		final double tx1 = uvs.left().value();
+		final double ty1 = uvs.top().value();
+		final double tx2 = uvs.right().value();
+		final double ty2 = uvs.bottom().value();
 		
 		// quad with texture
 		glTexCoord2d(tx1, ty2);
@@ -440,10 +436,10 @@ public class Render {
 	 */
 	public static void quadColor(Rect quad, RGB colorHMinVMin, RGB colorHMaxVMin, RGB colorHMaxVMax, RGB colorHMinVMax)
 	{
-		final double x1 = quad.left();
-		final double y1 = quad.top();
-		final double x2 = quad.right();
-		final double y2 = quad.bottom();
+		final double x1 = quad.left().value();
+		final double y1 = quad.top().value();
+		final double x2 = quad.right().value();
+		final double y2 = quad.bottom().value();
 		
 		// draw with color
 		unbindTexture();
@@ -547,7 +543,7 @@ public class Render {
 	 * 
 	 * @param size viewport size (screen size)
 	 */
-	public static void setupOrtho(VectView size)
+	public static void setupOrtho(Vect size)
 	{
 		// fix projection for changed size
 		glMatrixMode(GL_PROJECTION);
diff --git a/src/mightypork/gamecore/render/fonts/FontRenderer.java b/src/mightypork/gamecore/render/fonts/FontRenderer.java
index 769b1e3..6169e15 100644
--- a/src/mightypork/gamecore/render/fonts/FontRenderer.java
+++ b/src/mightypork/gamecore/render/fonts/FontRenderer.java
@@ -5,8 +5,7 @@ import mightypork.gamecore.render.Render;
 import mightypork.utils.math.color.RGB;
 import mightypork.utils.math.rect.Rect;
 import mightypork.utils.math.vect.Vect;
-import mightypork.utils.math.vect.VectMutable;
-import mightypork.utils.math.vect.VectView;
+import mightypork.utils.math.vect.VectVar;
 
 
 /**
@@ -110,7 +109,7 @@ public class FontRenderer {
 	{
 		Render.pushMatrix();
 		
-		Render.translate(pos.copy().round());
+		Render.translate(pos.freeze().round());
 		Render.scaleXY(getScale(height));
 		
 		font.draw(text, color);
@@ -144,7 +143,7 @@ public class FontRenderer {
 	 */
 	public void draw(String text, Rect bounds, Align align, RGB color)
 	{
-		VectView start;
+		Vect start;
 		
 		switch (align) {
 			case LEFT:
@@ -161,7 +160,7 @@ public class FontRenderer {
 				break;
 		}
 		
-		draw(text, start, bounds.height(), align, color);
+		draw(text, start, bounds.height().value(), align, color);
 	}
 	
 	
@@ -193,7 +192,7 @@ public class FontRenderer {
 		
 		final double w = getWidth(text, height);
 		
-		final VectMutable start = VectMutable.make(pos);
+		final VectVar start = Vect.makeVar(pos);
 		
 		switch (align) {
 			case LEFT:
diff --git a/src/mightypork/gamecore/render/fonts/GLFont.java b/src/mightypork/gamecore/render/fonts/GLFont.java
index 58e4655..41f1303 100644
--- a/src/mightypork/gamecore/render/fonts/GLFont.java
+++ b/src/mightypork/gamecore/render/fonts/GLFont.java
@@ -2,7 +2,7 @@ package mightypork.gamecore.render.fonts;
 
 
 import mightypork.utils.math.color.RGB;
-import mightypork.utils.math.vect.VectView;
+import mightypork.utils.math.vect.Vect;
 
 
 /**
@@ -27,7 +27,7 @@ public interface GLFont {
 	 * @param text string to check
 	 * @return coord (width, height)
 	 */
-	VectView getNeededSpace(String text);
+	Vect getNeededSpace(String text);
 	
 	
 	/**
diff --git a/src/mightypork/gamecore/render/fonts/impl/CachedFont.java b/src/mightypork/gamecore/render/fonts/impl/CachedFont.java
index 9f262e5..cf301ea 100644
--- a/src/mightypork/gamecore/render/fonts/impl/CachedFont.java
+++ b/src/mightypork/gamecore/render/fonts/impl/CachedFont.java
@@ -23,7 +23,7 @@ import mightypork.gamecore.render.fonts.GLFont;
 import mightypork.gamecore.render.textures.FilterMode;
 import mightypork.utils.logging.Log;
 import mightypork.utils.math.color.RGB;
-import mightypork.utils.math.vect.VectVal;
+import mightypork.utils.math.vect.VectConst;
 
 import org.lwjgl.BufferUtils;
 import org.lwjgl.util.glu.GLU;
@@ -294,8 +294,7 @@ public class CachedFont implements GLFont {
 				
 				byteBuffer = ByteBuffer.allocateDirect(width * height * (bpp / 8)).order(ByteOrder.nativeOrder()).put(newI);
 			} else {
-				byteBuffer = ByteBuffer.allocateDirect(width * height * (bpp / 8)).order(ByteOrder.nativeOrder())
-						.put(((DataBufferByte) (bufferedImage.getData().getDataBuffer())).getData());
+				byteBuffer = ByteBuffer.allocateDirect(width * height * (bpp / 8)).order(ByteOrder.nativeOrder()).put(((DataBufferByte) (bufferedImage.getData().getDataBuffer())).getData());
 			}
 			
 			byteBuffer.flip();
@@ -412,8 +411,7 @@ public class CachedFont implements GLFont {
 			chtx = chars.get(charCurrent);
 			
 			if (chtx != null) {
-				drawQuad((totalwidth), 0, (totalwidth + chtx.width), (chtx.height), chtx.texPosX, chtx.texPosY, chtx.texPosX + chtx.width, chtx.texPosY
-						+ chtx.height);
+				drawQuad((totalwidth), 0, (totalwidth + chtx.width), (chtx.height), chtx.texPosX, chtx.texPosY, chtx.texPosX + chtx.width, chtx.texPosY + chtx.height);
 				totalwidth += chtx.width;
 			}
 		}
@@ -424,9 +422,9 @@ public class CachedFont implements GLFont {
 	
 	
 	@Override
-	public VectVal getNeededSpace(String text)
+	public VectConst getNeededSpace(String text)
 	{
-		return VectVal.make(getWidth(text), getLineHeight());
+		return VectConst.make(getWidth(text), getLineHeight());
 	}
 	
 }
diff --git a/src/mightypork/gamecore/render/fonts/impl/DeferredFont.java b/src/mightypork/gamecore/render/fonts/impl/DeferredFont.java
index fbca6a3..afa3658 100644
--- a/src/mightypork/gamecore/render/fonts/impl/DeferredFont.java
+++ b/src/mightypork/gamecore/render/fonts/impl/DeferredFont.java
@@ -14,7 +14,6 @@ import mightypork.utils.annotations.Alias;
 import mightypork.utils.files.FileUtils;
 import mightypork.utils.math.color.RGB;
 import mightypork.utils.math.vect.Vect;
-import mightypork.utils.math.vect.VectView;
 
 
 /**
@@ -130,7 +129,7 @@ public class DeferredFont extends DeferredResource implements GLFont {
 	 */
 	protected Font getAwtFont(String resource, float size, int style) throws FontFormatException, IOException
 	{
-		try(InputStream in = FileUtils.getResource(resource)) {
+		try (InputStream in = FileUtils.getResource(resource)) {
 			
 			Font awtFont = Font.createFont(Font.TRUETYPE_FONT, in);
 			
@@ -164,7 +163,7 @@ public class DeferredFont extends DeferredResource implements GLFont {
 	 * @return coord (width, height)
 	 */
 	@Override
-	public VectView getNeededSpace(String text)
+	public Vect getNeededSpace(String text)
 	{
 		if (!ensureLoaded()) return Vect.ZERO;
 		
diff --git a/src/mightypork/gamecore/render/fonts/impl/NullFont.java b/src/mightypork/gamecore/render/fonts/impl/NullFont.java
index 6312587..901c10f 100644
--- a/src/mightypork/gamecore/render/fonts/impl/NullFont.java
+++ b/src/mightypork/gamecore/render/fonts/impl/NullFont.java
@@ -5,7 +5,6 @@ import mightypork.gamecore.render.fonts.GLFont;
 import mightypork.utils.logging.Log;
 import mightypork.utils.math.color.RGB;
 import mightypork.utils.math.vect.Vect;
-import mightypork.utils.math.vect.VectView;
 
 
 /**
@@ -23,7 +22,7 @@ public class NullFont implements GLFont {
 	
 	
 	@Override
-	public VectView getNeededSpace(String str)
+	public Vect getNeededSpace(String str)
 	{
 		return Vect.ZERO;
 	}
diff --git a/src/mightypork/gamecore/render/textures/TxQuad.java b/src/mightypork/gamecore/render/textures/TxQuad.java
index 915ef89..e2eb628 100644
--- a/src/mightypork/gamecore/render/textures/TxQuad.java
+++ b/src/mightypork/gamecore/render/textures/TxQuad.java
@@ -2,7 +2,7 @@ package mightypork.gamecore.render.textures;
 
 
 import mightypork.utils.math.rect.Rect;
-import mightypork.utils.math.rect.RectVal;
+import mightypork.utils.math.rect.RectConst;
 
 import org.newdawn.slick.opengl.Texture;
 
@@ -65,7 +65,7 @@ public class TxQuad {
 	 * @param y2 right bottom Y (0-1)
 	 */
 	public TxQuad(Texture tx, double x1, double y1, double x2, double y2) {
-		this(tx, RectVal.make(x1, y1, x2, y2));
+		this(tx, RectConst.make(x1, y1, x2, y2));
 	}
 	
 	
diff --git a/src/mightypork/rogue/screens/LayerFps.java b/src/mightypork/rogue/screens/LayerFps.java
index cef0e55..5f13de1 100644
--- a/src/mightypork/rogue/screens/LayerFps.java
+++ b/src/mightypork/rogue/screens/LayerFps.java
@@ -38,7 +38,7 @@ public class LayerFps extends ScreenLayer {
 		
 		final GLFont font = Res.getFont("default");
 		
-		final RectBound constraint = box(add(topRight(this), -8, 8), 0, 32);
+		final RectBound constraint = bounds().topRight().add(-8, 8).expand(0, 0, 0, 32);
 		
 		tp = new TextPainter(font, Align.RIGHT, RGB.WHITE, new StringProvider() {
 			
diff --git a/src/mightypork/rogue/screens/test_bouncyboxes/LayerBouncyBoxes.java b/src/mightypork/rogue/screens/test_bouncyboxes/LayerBouncyBoxes.java
index 717b8ab..b36a87b 100644
--- a/src/mightypork/rogue/screens/test_bouncyboxes/LayerBouncyBoxes.java
+++ b/src/mightypork/rogue/screens/test_bouncyboxes/LayerBouncyBoxes.java
@@ -14,7 +14,7 @@ import mightypork.gamecore.render.fonts.FontRenderer.Align;
 import mightypork.rogue.Res;
 import mightypork.utils.math.color.RGB;
 import mightypork.utils.math.constraints.RectBound;
-import mightypork.utils.math.vect.VectVal;
+import mightypork.utils.math.vect.VectConst;
 
 
 public class LayerBouncyBoxes extends ScreenLayer {
@@ -57,7 +57,7 @@ public class LayerBouncyBoxes extends ScreenLayer {
 		
 		final TextPainter tp = new TextPainter(Res.getFont("default"), Align.LEFT, RGB.WHITE);
 		tp.setText("Press \"C\" for \"Cat\" screen.");
-		tp.setShadow(RGB.RED, VectVal.make(2, 2));
+		tp.setShadow(RGB.RED, VectConst.make(2, 2));
 		
 		layout.add(tp);
 	}
diff --git a/src/mightypork/rogue/screens/test_cat_sound/LayerFlyingCat.java b/src/mightypork/rogue/screens/test_cat_sound/LayerFlyingCat.java
index 1045961..5978928 100644
--- a/src/mightypork/rogue/screens/test_cat_sound/LayerFlyingCat.java
+++ b/src/mightypork/rogue/screens/test_cat_sound/LayerFlyingCat.java
@@ -17,15 +17,16 @@ import mightypork.rogue.Res;
 import mightypork.utils.math.animation.AnimDouble;
 import mightypork.utils.math.animation.Easing;
 import mightypork.utils.math.color.RGB;
+import mightypork.utils.math.num.Num;
+import mightypork.utils.math.rect.Rect;
 import mightypork.utils.math.vect.Vect;
 import mightypork.utils.math.vect.VectAnimated;
-import mightypork.utils.math.vect.VectVal;
 
 
 public class LayerFlyingCat extends ScreenLayer implements Updateable, MouseButtonEvent.Listener {
 	
 	private final AnimDouble size = new AnimDouble(400, Easing.SINE_BOTH);
-	private final VectAnimated pos = VectAnimated.make(Easing.ELASTIC_OUT);
+	private final VectAnimated pos = VectAnimated.makeVar(Easing.ELASTIC_OUT);
 	
 	private final Random rand = new Random();
 	
@@ -42,22 +43,19 @@ public class LayerFlyingCat extends ScreenLayer implements Updateable, MouseButt
 		
 		cat = new ImagePainter(Res.getTxQuad("test.kitten"));
 		
-		// Bounds.box(size,size).centerTo(pos)
-		cat.setContext(centerTo(box(size, size), pos));
+		cat.setContext(Rect.make(size, size).centerTo(pos));
 		
 		tp = new TextPainter(Res.getFont("default"));
 		tp.setAlign(Align.CENTER);
 		tp.setColor(RGB.YELLOW);
 		tp.setText("Meow!");
-		tp.setShadow(RGB.dark(0.8), VectVal.make(2, 2));
+		tp.setShadow(RGB.dark(0.8), Vect.make(2, 2));
 		
-		// Bounds.box(64,64).centerTo(cMousePos)
-		tp.setContext(centerTo(box(64, 64), cMousePos));
+		tp.setContext(Rect.make(64, 64).centerTo(mouse()));
 		
 		qp = QuadPainter.gradV(RGB.YELLOW, RGB.RED);
 		
-		// Bounds.wrap(cat).bottomLeft().expand(0,0,50,50)
-		qp.setContext(expand(bottomLeft(cat), 0, 0, 50, 50));
+		qp.setContext(cat.getRect().bottomLeft().expand(size.half(), Num.ZERO, Num.ZERO, size.half()));
 		
 		/*
 		 * Register keys
diff --git a/src/mightypork/rogue/screens/test_font/ScreenTestFont.java b/src/mightypork/rogue/screens/test_font/ScreenTestFont.java
index a6f6d39..ed26b6f 100644
--- a/src/mightypork/rogue/screens/test_font/ScreenTestFont.java
+++ b/src/mightypork/rogue/screens/test_font/ScreenTestFont.java
@@ -7,8 +7,8 @@ import mightypork.gamecore.gui.screens.Screen;
 import mightypork.gamecore.render.fonts.FontRenderer.Align;
 import mightypork.rogue.Res;
 import mightypork.utils.math.color.RGB;
-import mightypork.utils.math.constraints.NumBound;
-import mightypork.utils.math.constraints.RectBound;
+import mightypork.utils.math.num.Num;
+import mightypork.utils.math.rect.Rect;
 
 
 public class ScreenTestFont extends Screen {
@@ -22,9 +22,8 @@ public class ScreenTestFont extends Screen {
 		tp = new TextPainter(Res.getFont("default"), Align.CENTER, RGB.GREEN);
 		tp.setText("Hello World!");
 		
-		final NumBound fontHeight = mul(getDisplay().getSize().yn(), 0.1);
-		
-		final RectBound strbox = centerTo(box(fontHeight), this);
+		final Num h = bounds().height().mul(0.1);
+		final Rect strbox = Rect.make(Num.ZERO, h).centerTo(bounds());
 		
 		tp.setContext(strbox);
 	}
diff --git a/src/mightypork/rogue/screens/test_render/LayerTestGradient.java b/src/mightypork/rogue/screens/test_render/LayerTestGradient.java
index fa68d93..ef8f545 100644
--- a/src/mightypork/rogue/screens/test_render/LayerTestGradient.java
+++ b/src/mightypork/rogue/screens/test_render/LayerTestGradient.java
@@ -1,19 +1,15 @@
 package mightypork.rogue.screens.test_render;
 
 
-import mightypork.gamecore.control.timing.Poller;
 import mightypork.gamecore.gui.screens.Screen;
 import mightypork.gamecore.gui.screens.ScreenLayer;
 import mightypork.gamecore.render.Render;
 import mightypork.utils.math.color.RGB;
 import mightypork.utils.math.constraints.RectBound;
-import mightypork.utils.math.vect.Vect;
 
 
 public class LayerTestGradient extends ScreenLayer {
 	
-	private final Poller p = new Poller();
-	
 	private final RectBound pos1;
 	private final RectBound pos2;
 	
@@ -21,8 +17,8 @@ public class LayerTestGradient extends ScreenLayer {
 	public LayerTestGradient(Screen screen) {
 		super(screen);
 		
-		pos1 = cached(p, growDown(edgeTop(this), 64));
-		pos2 = cached(p, shrinkTop(growRight(edgeLeft(this), 64), 64));
+		pos1 = bounds().topEdge().growDown(64);
+		pos2 = bounds().leftEdge().growUp(-64).growRight(64);
 	}
 	
 	
@@ -41,11 +37,4 @@ public class LayerTestGradient extends ScreenLayer {
 		return 5;
 	}
 	
-	
-	@Override
-	protected void onSizeChanged(Vect size)
-	{
-		p.poll();
-	}
-	
 }
diff --git a/src/mightypork/test/TestConstr.java b/src/mightypork/test/TestConstr.java
index 13e5dcf..c05de79 100644
--- a/src/mightypork/test/TestConstr.java
+++ b/src/mightypork/test/TestConstr.java
@@ -3,14 +3,13 @@ package mightypork.test;
 
 import java.util.Locale;
 
-import mightypork.utils.math.num.NumMutable;
+import mightypork.utils.math.num.Num;
+import mightypork.utils.math.num.NumVar;
 import mightypork.utils.math.rect.Rect;
-import mightypork.utils.math.rect.RectVal;
-import mightypork.utils.math.rect.RectView;
+import mightypork.utils.math.rect.RectConst;
 import mightypork.utils.math.vect.Vect;
-import mightypork.utils.math.vect.VectMutable;
-import mightypork.utils.math.vect.VectVal;
-import mightypork.utils.math.vect.VectView;
+import mightypork.utils.math.vect.VectConst;
+import mightypork.utils.math.vect.VectVar;
 
 
 public class TestConstr {
@@ -22,52 +21,52 @@ public class TestConstr {
 		int cnt = -1;
 		
 		{
-			final RectVal rect = RectVal.make(0, 0, 10, 10);
-			final VectVal point = VectVal.make(50, 50);
+			final RectConst rect = Rect.make(0, 0, 10, 10);
+			final VectConst point = Vect.make(50, 50);
 			System.out.println("Test " + ++cnt + ": rect = " + rect);
 			System.out.println("Test " + cnt + ": point = " + point);
-			System.out.println("Test " + cnt + ": centered rect = " + rect.view().centerTo(point));
+			System.out.println("Test " + cnt + ": centered rect = " + rect.centerTo(point));
 		}
 		
 		{
-			final RectVal rect = RectVal.make(0, 0, 10, 10);
-			final RectView v = rect.view().view();
-			System.out.println("\nTest " + ++cnt + ": " + (v == rect.view()));
+			final RectConst rect = Rect.make(0, 0, 10, 10);
+			final Rect v = rect;
+			System.out.println("\nTest " + ++cnt + ": " + (v == rect));
 		}
 		
 		{
-			final RectVal rect = RectVal.make(0, 0, 10, 10);
-			final RectView v = rect.view().view().view().view().view().view();
-			System.out.println("\nTest " + ++cnt + ": " + (v == rect.view()));
+			final RectConst rect = Rect.make(0, 0, 10, 10);
+			final Rect v = rect;
+			System.out.println("\nTest " + ++cnt + ": " + (v == rect));
 		}
 		
 		{
-			final Vect a = VectVal.make(3, 3);
-			final VectVal v = a.copy().copy().copy();
-			System.out.println("\nTest " + ++cnt + ": " + (v == a.copy()));
+			final Vect a = Vect.make(3, 3);
+			final VectConst v = a.freeze().freeze().freeze();
+			System.out.println("\nTest " + ++cnt + ": " + (v == a.freeze()));
 		}
 		
 		{
-			final Vect a = VectVal.make(3, 3);
-			final VectVal v = a.copy().copy().copy();
-			System.out.println("\nTest " + ++cnt + ": " + (v == a.copy()));
+			final Vect a = Vect.make(3, 3);
+			final VectConst v = a.freeze().freeze().freeze();
+			System.out.println("\nTest " + ++cnt + ": " + (v == a.freeze()));
 		}
 		
 		{
-			final VectMutable a = VectMutable.make(10, 10);
-			final VectView view = a.view().mul(10).half().sub(1, 1);
-			System.out.println("\nTest " + ++cnt + ": " + (view.equals(VectVal.make(49, 49))));
+			final VectVar a = Vect.makeVar(10, 10);
+			final Vect view = a.mul(10).half().sub(1, 1);
+			System.out.println("\nTest " + ++cnt + ": " + (view.equals(Vect.make(49, 49))));
 			a.add(10, 0);
-			System.out.println("Test " + cnt + ": " + (view.equals(VectVal.make(99, 49))));
+			System.out.println("Test " + cnt + ": " + (view.equals(Vect.make(99, 49))));
 			a.setTo(900, 999);
 			System.out.println(view);
 		}
 		
 		{
-			final NumMutable side = NumMutable.make(100);
-			final VectMutable center = VectMutable.make(0, 0);
+			final NumVar side = Num.makeVar(100);
+			final VectVar center = Vect.makeVar(0, 0);
 			
-			final Rect box = side.view().box().centerTo(center);
+			final Rect box = Rect.make(side, side).centerTo(center);
 			
 			System.out.println(box);
 			
@@ -82,17 +81,11 @@ public class TestConstr {
 		}
 		
 		{
-			final NumMutable a = NumMutable.make(100);
+			final NumVar a = Num.makeVar(100);
 			
-			a.setTo(a.mul(50).add(10).div(2));
+			a.assign(a.mul(50).add(10).div(2));
 			
 			System.out.println(a);
-			Rect r;
-			System.out.println(r = a.box());
-			
-			a.reset();
-			
-			System.out.println(r);
 			
 		}
 	}
diff --git a/src/mightypork/test/TestCoords.java b/src/mightypork/test/TestCoords.java
index ac33837..4bb9e79 100644
--- a/src/mightypork/test/TestCoords.java
+++ b/src/mightypork/test/TestCoords.java
@@ -1,47 +1,50 @@
 package mightypork.test;
 
 
-import java.util.Locale;
-
-import mightypork.utils.math.num.NumView;
-import mightypork.utils.math.vect.VectMutable;
-import mightypork.utils.math.vect.VectView;
+import mightypork.utils.math.num.Num;
+import mightypork.utils.math.num.NumVar;
+import mightypork.utils.math.vect.Vect;
+import mightypork.utils.math.vect.VectVar;
 
 
 public class TestCoords {
 	
 	public static void main(String[] args)
 	{
-		Locale.setDefault(Locale.ENGLISH);
-		
-		// test
-		final VectMutable var = VectMutable.make(1, 2, 3);
-		
-		final VectView cubicRoot = var.mul(var).mul(var);
-		final VectView half = var.half();
-		
-		System.out.println("x, x^3, x/5");
-		System.out.println(var);
-		System.out.println(cubicRoot);
-		System.out.println(half);
-		
-		var.setTo(var.mul(10));
-		
-		System.out.println("x = x*10; x, x^3, x/5");
-		System.out.println(var);
-		System.out.println(cubicRoot);
-		System.out.println(half);
-		
-		final NumView y = var.yn();
-		System.out.println("y: " + y.value());
-		
-		var.setTo(var.add(100, 100));
-		
-		System.out.println("x = x*100; x.y(), x, x^3, x/5");
-		System.out.println(y.value());
-		System.out.println(var);
-		System.out.println(cubicRoot);
-		System.out.println(half);
+		{
+			VectVar a = Vect.makeVar();
+			VectVar b = Vect.makeVar();
+			
+			Vect cross = a.cross(b);
+			Num dot = a.dot(b);
+			Vect sum = a.add(b);
+			Num dist = a.dist(b);
+			
+			a.setTo(0, 10, 0);
+			b.setTo(0, 6, 7);
+			
+			System.out.println("a = " + a);
+			System.out.println("b = " + b);
+			System.out.println("axb = " + cross);
+			System.out.println("a.b = " + dot);
+			System.out.println("a+b = " + sum);
+			System.out.println("dist(a,b) = " + dist);
+		}
+		
+		{
+			NumVar a = Num.makeVar();
+			
+			Num end = a;
+			
+			for (int i = 0; i < 100; i++) {
+				end = end.add(1);
+			}
+			
+			System.out.println(end);
+			a.setTo(37);
+			System.out.println(end);
+			
+		}
 		
 	}
 }
diff --git a/src/mightypork/test/TestVec.java b/src/mightypork/test/TestVec.java
new file mode 100644
index 0000000..c402a1e
--- /dev/null
+++ b/src/mightypork/test/TestVec.java
@@ -0,0 +1,33 @@
+package mightypork.test;
+
+
+import mightypork.utils.math.vect.Vect;
+import mightypork.utils.math.vect.VectConst;
+import mightypork.utils.math.vect.VectVar;
+
+
+public class TestVec {
+	
+	public static void main(String[] args)
+	{
+		VectVar a = Vect.makeVar(-100, 12, 6);
+		
+		VectConst b = a.freeze();
+		
+		a.setTo(400, 400, 300);
+		
+		System.out.println(a);
+		System.out.println(b);
+		
+		Vect c = a.abs().neg();
+		
+		System.out.println(c);
+		
+		System.out.println("20,1");
+		a.setTo(20, 1);
+		
+		System.out.println(a);
+		System.out.println(c);
+		
+	}
+}
diff --git a/src/mightypork/utils/config/PropertyManager.java b/src/mightypork/utils/config/PropertyManager.java
index b199381..6574ab7 100644
--- a/src/mightypork/utils/config/PropertyManager.java
+++ b/src/mightypork/utils/config/PropertyManager.java
@@ -11,7 +11,7 @@ import java.util.TreeMap;
 
 import mightypork.utils.math.Range;
 import mightypork.utils.math.vect.Vect;
-import mightypork.utils.math.vect.VectVal;
+import mightypork.utils.math.vect.VectConst;
 import mightypork.utils.objects.Convert;
 
 
@@ -179,7 +179,7 @@ public class PropertyManager {
 			}
 		}
 		
-		try(FileInputStream fis = new FileInputStream(file)) {
+		try (FileInputStream fis = new FileInputStream(file)) {
 			props.load(fis);
 		} catch (final IOException e) {
 			needsSave = true;
@@ -362,7 +362,7 @@ public class PropertyManager {
 	 * @param n key
 	 * @return the coord found, or null
 	 */
-	public VectVal getCoord(String n)
+	public VectConst getCoord(String n)
 	{
 		return Convert.toVect(get(n).value);
 	}
diff --git a/src/mightypork/utils/files/FileTreeDiff.java b/src/mightypork/utils/files/FileTreeDiff.java
index 6f427ba..6573e1d 100644
--- a/src/mightypork/utils/files/FileTreeDiff.java
+++ b/src/mightypork/utils/files/FileTreeDiff.java
@@ -72,11 +72,9 @@ public class FileTreeDiff {
 			ck1.reset();
 			ck2.reset();
 			
-			try(FileInputStream in1 = new FileInputStream(pair.a);
-				FileInputStream in2 = new FileInputStream(pair.b)) {
+			try (FileInputStream in1 = new FileInputStream(pair.a); FileInputStream in2 = new FileInputStream(pair.b)) {
 				
-				try(CheckedInputStream cin1 = new CheckedInputStream(in1, ck1);
-					CheckedInputStream cin2 = new CheckedInputStream(in2, ck2)) {
+				try (CheckedInputStream cin1 = new CheckedInputStream(in1, ck1); CheckedInputStream cin2 = new CheckedInputStream(in2, ck2)) {
 					
 					while (true) {
 						final int read1 = cin1.read(BUFFER);
diff --git a/src/mightypork/utils/files/FileUtils.java b/src/mightypork/utils/files/FileUtils.java
index b6c2ce2..dc6de22 100644
--- a/src/mightypork/utils/files/FileUtils.java
+++ b/src/mightypork/utils/files/FileUtils.java
@@ -95,8 +95,7 @@ public class FileUtils {
 	public static void copyFile(File source, File target) throws IOException
 	{
 		
-		try(InputStream in = new FileInputStream(source);
-			OutputStream out = new FileOutputStream(target)) {
+		try (InputStream in = new FileInputStream(source); OutputStream out = new FileOutputStream(target)) {
 			
 			copyStream(in, out);
 		}
@@ -161,7 +160,7 @@ public class FileUtils {
 	 */
 	public static String fileToString(File file) throws IOException
 	{
-		try(FileInputStream fin = new FileInputStream(file)) {
+		try (FileInputStream fin = new FileInputStream(file)) {
 			
 			return streamToString(fin);
 		}
@@ -361,7 +360,7 @@ public class FileUtils {
 	 */
 	public static void stringToFile(File file, String text) throws IOException
 	{
-		try(PrintStream out = new PrintStream(new FileOutputStream(file), false, "UTF-8")) {
+		try (PrintStream out = new PrintStream(new FileOutputStream(file), false, "UTF-8")) {
 			
 			out.print(text);
 			
@@ -482,8 +481,7 @@ public class FileUtils {
 	 */
 	public static void resourceToFile(String resname, File file) throws IOException
 	{
-		try(InputStream in = FileUtils.getResource(resname);
-			OutputStream out = new FileOutputStream(file)) {
+		try (InputStream in = FileUtils.getResource(resname); OutputStream out = new FileOutputStream(file)) {
 			
 			FileUtils.copyStream(in, out);
 		}
@@ -500,7 +498,7 @@ public class FileUtils {
 	 */
 	public static String resourceToString(String resname) throws IOException
 	{
-		try(InputStream in = FileUtils.getResource(resname)) {
+		try (InputStream in = FileUtils.getResource(resname)) {
 			return streamToString(in);
 		}
 	}
diff --git a/src/mightypork/utils/files/ZipBuilder.java b/src/mightypork/utils/files/ZipBuilder.java
index 875baa6..af33bc0 100644
--- a/src/mightypork/utils/files/ZipBuilder.java
+++ b/src/mightypork/utils/files/ZipBuilder.java
@@ -74,7 +74,7 @@ public class ZipBuilder {
 		
 		out.putNextEntry(new ZipEntry(path));
 		
-		try(InputStream in = FileUtils.stringToStream(text)) {
+		try (InputStream in = FileUtils.stringToStream(text)) {
 			FileUtils.copyStream(in, out);
 		}
 	}
@@ -95,7 +95,7 @@ public class ZipBuilder {
 		
 		out.putNextEntry(new ZipEntry(path));
 		
-		try(InputStream in = FileUtils.getResource(resPath)) {
+		try (InputStream in = FileUtils.getResource(resPath)) {
 			FileUtils.copyStream(in, out);
 		}
 	}
diff --git a/src/mightypork/utils/files/ZipUtils.java b/src/mightypork/utils/files/ZipUtils.java
index faa330d..10a443b 100644
--- a/src/mightypork/utils/files/ZipUtils.java
+++ b/src/mightypork/utils/files/ZipUtils.java
@@ -33,7 +33,7 @@ public class ZipUtils {
 	 */
 	public static List<String> extractZip(File file, File outputDir, StringFilter filter) throws IOException
 	{
-		try(ZipFile zip = new ZipFile(file)) {
+		try (ZipFile zip = new ZipFile(file)) {
 			return extractZip(zip, outputDir, filter);
 		}
 	}
@@ -89,7 +89,7 @@ public class ZipUtils {
 	 */
 	public static List<String> listZip(File zipFile) throws IOException
 	{
-		try(ZipFile zip = new ZipFile(zipFile)) {
+		try (ZipFile zip = new ZipFile(zipFile)) {
 			return listZip(zip);
 		}
 	}
@@ -133,10 +133,7 @@ public class ZipUtils {
 	{
 		if (!destFile.getParentFile().mkdirs()) throw new IOException("Could not create output directory.");
 		
-		try(InputStream in = zip.getInputStream(entry);
-			BufferedInputStream is = new BufferedInputStream(in);
-			FileOutputStream fos = new FileOutputStream(destFile);
-			BufferedOutputStream dest = new BufferedOutputStream(fos, BUFFER_SIZE)) {
+		try (InputStream in = zip.getInputStream(entry); BufferedInputStream is = new BufferedInputStream(in); FileOutputStream fos = new FileOutputStream(destFile); BufferedOutputStream dest = new BufferedOutputStream(fos, BUFFER_SIZE)) {
 			
 			FileUtils.copyStream(is, dest);
 		}
@@ -170,7 +167,7 @@ public class ZipUtils {
 	
 	public static boolean entryExists(File selectedFile, String string)
 	{
-		try(ZipFile zf = new ZipFile(selectedFile)) {
+		try (ZipFile zf = new ZipFile(selectedFile)) {
 			return zf.getEntry(string) != null;
 		} catch (final IOException | RuntimeException e) {
 			Log.w("Error reading zip.", e);
diff --git a/src/mightypork/utils/files/ion/Ion.java b/src/mightypork/utils/files/ion/Ion.java
index 3d0dbb6..26b6a9a 100644
--- a/src/mightypork/utils/files/ion/Ion.java
+++ b/src/mightypork/utils/files/ion/Ion.java
@@ -67,7 +67,7 @@ public class Ion {
 	 */
 	public static Object fromFile(File file) throws IonException
 	{
-		try(InputStream in = new FileInputStream(file)) {
+		try (InputStream in = new FileInputStream(file)) {
 			
 			final Object obj = fromStream(in);
 			return obj;
@@ -113,7 +113,7 @@ public class Ion {
 	 */
 	public static void toFile(File path, Object obj) throws IonException
 	{
-		try(OutputStream out = new FileOutputStream(path)) {
+		try (OutputStream out = new FileOutputStream(path)) {
 			final String f = path.toString();
 			final File dir = new File(f.substring(0, f.lastIndexOf(File.separator)));
 			
diff --git a/src/mightypork/utils/math/constraints/ConstraintFactory.java b/src/mightypork/utils/math/constraints/ConstraintFactory.java
index 98983be..26b9026 100644
--- a/src/mightypork/utils/math/constraints/ConstraintFactory.java
+++ b/src/mightypork/utils/math/constraints/ConstraintFactory.java
@@ -11,7 +11,7 @@
 //import mightypork.utils.math.vect.Vect;
 //import mightypork.utils.math.vect.VectAdapter;
 //import mightypork.utils.math.vect.VectVal;
-//import mightypork.utils.math.vect.VectView;
+//import mightypork.utils.math.vect.Vect;
 //
 //
 ///**
@@ -69,9 +69,9 @@
 //	 * @param vectBound vect bound
 //	 * @return contained vect
 //	 */
-//	private static VectView eval(final VectBound vectBound)
+//	private static Vect eval(final VectBound vectBound)
 //	{
-//		return vectBound == null ? Vect.ZERO.view() : vectBound.getVect();
+//		return vectBound == null ? Vect.ZERO : vectBound.getVect();
 //	}
 //	
 //	
@@ -83,7 +83,7 @@
 //	 */
 //	private static RectView eval(final RectBound rectBound)
 //	{
-//		return rectBound == null ? Rect.ZERO.view() : rectBound.getRect();
+//		return rectBound == null ? Rect.ZERO : rectBound.getRect();
 //	}
 //	
 //	
@@ -670,7 +670,7 @@
 //				final double b = eval(bottom);
 //				final double l = eval(left);
 //				
-//				final VectView v = eval(c);
+//				final Vect v = eval(c);
 //				
 //				return RectVal.make(v.x() - l, v.y() - t, l + r, t + b);
 //			}
@@ -736,24 +736,24 @@
 //	}
 //	
 //	
-//	public static VectView neg(final VectBound c)
+//	public static Vect neg(final VectBound c)
 //	{
 //		return mul(c, -1);
 //	}
 //	
 //	
-//	public static VectView half(final VectBound c)
+//	public static Vect half(final VectBound c)
 //	{
 //		return mul(c, 0.5);
 //	}
 //	
 //	
-//	public static VectView add(final VectBound c1, final VectBound c2)
+//	public static Vect add(final VectBound c1, final VectBound c2)
 //	{
 //		return new VectAdapter() {
 //			
 //			@Override
-//			public VectView getSource()
+//			public Vect getSource()
 //			{
 //				return eval(c1).add(eval(c2));
 //			}
@@ -761,18 +761,18 @@
 //	}
 //	
 //	
-//	public static VectView add(final VectBound c, final Object x, final Object y)
+//	public static Vect add(final VectBound c, final Object x, final Object y)
 //	{
 //		return add(c, x, y, 0);
 //	}
 //	
 //	
-//	public static VectView add(final VectBound c, final Object x, final Object y, final Object z)
+//	public static Vect add(final VectBound c, final Object x, final Object y, final Object z)
 //	{
 //		return new VectAdapter() {
 //			
 //			@Override
-//			public VectView getSource()
+//			public Vect getSource()
 //			{
 //				return eval(c).add(eval(x), eval(y), eval(z));
 //			}
@@ -780,12 +780,12 @@
 //	}
 //	
 //	
-//	public static VectView sub(final VectBound c1, final VectBound c2)
+//	public static Vect sub(final VectBound c1, final VectBound c2)
 //	{
 //		return new VectAdapter() {
 //			
 //			@Override
-//			public VectView getSource()
+//			public Vect getSource()
 //			{
 //				return eval(c1).sub(eval(c2));
 //			}
@@ -793,18 +793,18 @@
 //	}
 //	
 //	
-//	public static VectView sub(final VectBound c, final Object x, final Object y)
+//	public static Vect sub(final VectBound c, final Object x, final Object y)
 //	{
 //		return sub(c, x, y, 0);
 //	}
 //	
 //	
-//	public static VectView sub(final VectBound c, final Object x, final Object y, final Object z)
+//	public static Vect sub(final VectBound c, final Object x, final Object y, final Object z)
 //	{
 //		return new VectAdapter() {
 //			
 //			@Override
-//			public VectView getSource()
+//			public Vect getSource()
 //			{
 //				return eval(c).sub(eval(x), eval(y), eval(z));
 //			}
@@ -813,12 +813,12 @@
 //	}
 //	
 //	
-//	public static VectView mul(final VectBound c, final Object mul)
+//	public static Vect mul(final VectBound c, final Object mul)
 //	{
 //		return new VectAdapter() {
 //			
 //			@Override
-//			public VectView getSource()
+//			public Vect getSource()
 //			{
 //				return eval(c).mul(eval(mul));
 //			}
@@ -827,12 +827,12 @@
 //	}
 //	
 //	
-//	public static VectView norm(final VectBound c, final Object norm)
+//	public static Vect norm(final VectBound c, final Object norm)
 //	{
 //		return new VectAdapter() {
 //			
 //			@Override
-//			public VectView getSource()
+//			public Vect getSource()
 //			{
 //				return eval(c).norm(eval(norm));
 //			}
@@ -841,12 +841,12 @@
 //	}
 //	
 //	
-//	public static VectView origin(final RectBound r)
+//	public static Vect origin(final RectBound r)
 //	{
 //		return new VectAdapter() {
 //			
 //			@Override
-//			public VectView getSource()
+//			public Vect getSource()
 //			{
 //				return eval(r).origin();
 //			}
@@ -854,12 +854,12 @@
 //	}
 //	
 //	
-//	public static VectView size(final RectBound r)
+//	public static Vect size(final RectBound r)
 //	{
 //		return new VectAdapter() {
 //			
 //			@Override
-//			public VectView getSource()
+//			public Vect getSource()
 //			{
 //				return eval(r).size();
 //			}
@@ -879,55 +879,55 @@
 //	}
 //	
 //	
-//	public static VectView center(final RectBound r)
+//	public static Vect center(final RectBound r)
 //	{
 //		return add(origin(r), half(size(r)));
 //	}
 //	
 //	
-//	public static VectView topLeft(final RectBound r)
+//	public static Vect topLeft(final RectBound r)
 //	{
 //		return origin(r);
 //	}
 //	
 //	
-//	public static VectView topRight(final RectBound r)
+//	public static Vect topRight(final RectBound r)
 //	{
 //		return add(origin(r), width(r), 0);
 //	}
 //	
 //	
-//	public static VectView bottomLeft(final RectBound r)
+//	public static Vect bottomLeft(final RectBound r)
 //	{
 //		return add(origin(r), 0, width(r));
 //	}
 //	
 //	
-//	public static VectView bottomRight(final RectBound r)
+//	public static Vect bottomRight(final RectBound r)
 //	{
 //		return add(origin(r), size(r));
 //	}
 //	
 //	
-//	public static VectView topCenter(final RectBound r)
+//	public static Vect topCenter(final RectBound r)
 //	{
 //		return add(origin(r), half(width(r)), 0);
 //	}
 //	
 //	
-//	public static VectView bottomCenter(final RectBound r)
+//	public static Vect bottomCenter(final RectBound r)
 //	{
 //		return add(origin(r), half(width(r)), width(r));
 //	}
 //	
 //	
-//	public static VectView centerLeft(final RectBound r)
+//	public static Vect centerLeft(final RectBound r)
 //	{
 //		return add(origin(r), 0, half(width(r)));
 //	}
 //	
 //	
-//	public static VectView centerRight(final RectBound r)
+//	public static Vect centerRight(final RectBound r)
 //	{
 //		return add(origin(r), width(r), half(width(r)));
 //	}
@@ -946,19 +946,19 @@
 //			@Override
 //			public RectView getRect()
 //			{
-//				VectView cv = eval(c);
+//				Vect cv = eval(c);
 //				
 //				return new RectView() {
 //					
 //					@Override
-//					public VectView size()
+//					public Vect size()
 //					{
-//						return Vect.ZERO.view();
+//						return Vect.ZERO;
 //					}
 //					
 //					
 //					@Override
-//					public VectView origin()
+//					public Vect origin()
 //					{
 //						return null;
 //					}
diff --git a/src/mightypork/utils/math/num/NumMutable.java b/src/mightypork/utils/math/num/NumMutable.java
index 76d106b..56bcc69 100644
--- a/src/mightypork/utils/math/num/NumMutable.java
+++ b/src/mightypork/utils/math/num/NumMutable.java
@@ -21,7 +21,7 @@ public abstract class NumMutable extends Num {
 	 * 
 	 * @param value new value
 	 */
-	public void setTo(Num value)
+	public void assign(Num value)
 	{
 		setTo(eval(value));
 	}
diff --git a/src/mightypork/utils/math/rect/Rect.java b/src/mightypork/utils/math/rect/Rect.java
index e62d058..db86dba 100644
--- a/src/mightypork/utils/math/rect/Rect.java
+++ b/src/mightypork/utils/math/rect/Rect.java
@@ -30,6 +30,12 @@ public abstract class Rect implements RectBound {
 	}
 	
 	
+	public static Rect make(Vect size)
+	{
+		return Rect.make(size.xn(), size.yn());
+	}
+	
+	
 	@FactoryMethod
 	public static Rect make(Num x, Num y, Num width, Num height)
 	{
@@ -122,6 +128,26 @@ public abstract class Rect implements RectBound {
 		return Rect.makeVar(Rect.ZERO);
 	}
 	
+	private Vect p_bl;
+	private Vect p_bc;
+	private Vect p_br;
+	// p_t == origin
+	private Vect p_tc;
+	private Vect p_tr;
+	
+	private Vect p_cl;
+	private Vect p_cc;
+	private Vect p_cr;
+	
+	private Num p_x;
+	private Num p_y;
+	private Num p_w;
+	private Num p_h;
+	private Num p_l;
+	private Num p_r;
+	private Num p_t;
+	private Num p_b;
+	
 	
 	/**
 	 * Get a copy of current value
@@ -448,49 +474,49 @@ public abstract class Rect implements RectBound {
 	
 	public Num x()
 	{
-		return origin().xn();
+		return p_x != null ? p_x : (p_x = origin().xn());
 	}
 	
 	
 	public Num y()
 	{
-		return origin().yn();
+		return p_y != null ? p_y : (p_y = origin().yn());
 	}
 	
 	
 	public Num width()
 	{
-		return size().xn();
+		return p_w != null ? p_w : (p_w = size().xn());
 	}
 	
 	
 	public Num height()
 	{
-		return size().yn();
+		return p_h != null ? p_h : (p_h = size().yn());
 	}
 	
 	
 	public Num left()
 	{
-		return origin().yn();
+		return p_l != null ? p_l : (p_l = origin().yn());
 	}
 	
 	
 	public Num right()
 	{
-		return origin().xn().add(size().xn());
+		return p_r != null ? p_r : (p_r = origin().xn().add(size().xn()));
 	}
 	
 	
 	public Num top()
 	{
-		return origin().yn();
+		return p_t != null ? p_t : (p_t = origin().yn());
 	}
 	
 	
 	public Num bottom()
 	{
-		return origin().yn().add(size().yn());
+		return p_b != null ? p_b : (p_b = origin().yn().add(size().yn()));
 	}
 	
 	
@@ -502,49 +528,49 @@ public abstract class Rect implements RectBound {
 	
 	public Vect topCenter()
 	{
-		return origin().add(size().xn().half(), Num.ZERO);
+		return p_tc != null ? p_tc : (p_tc = origin().add(size().xn().half(), Num.ZERO));
 	}
 	
 	
 	public Vect topRight()
 	{
-		return origin().add(size().xn(), Num.ZERO);
+		return p_tr != null ? p_tr : (p_tr = origin().add(size().xn(), Num.ZERO));
 	}
 	
 	
 	public Vect centerLeft()
 	{
-		return origin().add(Num.ZERO, size().yn().half());
+		return p_cl != null ? p_cl : (p_cl = origin().add(Num.ZERO, size().yn().half()));
 	}
 	
 	
 	public Vect center()
 	{
-		return origin().add(size().half());
+		return p_cc != null ? p_cc : (p_cc = origin().add(size().half()));
 	}
 	
 	
 	public Vect centerRight()
 	{
-		return origin().add(size().xn(), size().yn().half());
+		return p_cr != null ? p_cr : (p_cr = origin().add(size().xn(), size().yn().half()));
 	}
 	
 	
 	public Vect bottomLeft()
 	{
-		return origin().add(Num.ZERO, size().yn());
+		return p_bl != null ? p_bl : (p_bl = origin().add(Num.ZERO, size().yn()));
 	}
 	
 	
 	public Vect bottomCenter()
 	{
-		return origin().add(size().xn().half(), size().yn());
+		return p_bc != null ? p_bc : (p_bc = origin().add(size().xn().half(), size().yn()));
 	}
 	
 	
 	public Vect bottomRight()
 	{
-		return origin().add(size().xn(), size().yn());
+		return p_br != null ? p_br : (p_br = origin().add(size().xn(), size().yn()));
 	}
 	
 	
@@ -595,4 +621,11 @@ public abstract class Rect implements RectBound {
 		
 		return x >= x1 && y >= y1 && x <= x2 && y <= y2;
 	}
+	
+	
+	public Rect centerTo(Rect parent)
+	{
+		return centerTo(parent.center());
+	}
+	
 }
diff --git a/src/mightypork/utils/math/rect/RectConst.java b/src/mightypork/utils/math/rect/RectConst.java
index d53ce7e..5ce4bce 100644
--- a/src/mightypork/utils/math/rect/RectConst.java
+++ b/src/mightypork/utils/math/rect/RectConst.java
@@ -16,6 +16,19 @@ public class RectConst extends Rect {
 	private final VectConst pos;
 	private final VectConst size;
 	
+	// cached with lazy loading
+	private NumConst v_b;
+	private NumConst v_r;
+	private VectConst v_br;
+	private VectConst v_tc;
+	private VectConst v_tr;
+	private VectConst v_cl;
+	private VectConst v_c;
+	private VectConst v_cr;
+	private VectConst v_bl;
+	private VectConst v_bc;
+	private RectConst v_round;
+	
 	
 	/**
 	 * Create at given origin, with given size.
@@ -89,14 +102,14 @@ public class RectConst extends Rect {
 	@Override
 	public RectConst move(double x, double y)
 	{
-		return Rect.make(origin().add(x, y), size()).freeze();
+		return Rect.make(pos.add(x, y), size);
 	}
 	
 	
 	@Override
 	public RectConst shrink(double left, double right, double top, double bottom)
 	{
-		return Rect.make(origin().add(left, top), size().sub(left + right, top + bottom)).freeze();
+		return Rect.make(pos.add(left, top), size.sub(left + right, top + bottom)).freeze();
 		
 	}
 	
@@ -104,136 +117,144 @@ public class RectConst extends Rect {
 	@Override
 	public RectConst grow(double left, double right, double top, double bottom)
 	{
-		return Rect.make(origin().sub(left, top), size().add(left + right, top + bottom)).freeze();
+		return Rect.make(pos.sub(left, top), size.add(left + right, top + bottom)).freeze();
 	}
 	
 	
 	@Override
 	public RectConst round()
 	{
-		final VectConst s = size();
-		final VectConst o = origin();
-		
-		return Rect.make(o.round(), s.round()).freeze();
+		if (v_round == null) v_round = Rect.make(pos.round(), size.round());
+		return v_round;
 	}
 	
 	
 	@Override
 	public NumConst x()
 	{
-		return origin().xn();
+		return pos.xn();
 	}
 	
 	
 	@Override
 	public NumConst y()
 	{
-		return origin().yn();
+		return pos.yn();
 	}
 	
 	
 	@Override
 	public NumConst width()
 	{
-		return size().xn();
+		return size.xn();
 	}
 	
 	
 	@Override
 	public NumConst height()
 	{
-		return size().yn();
+		return size.yn();
 	}
 	
 	
 	@Override
 	public NumConst left()
 	{
-		return origin().xn();
+		return pos.xn();
 	}
 	
 	
 	@Override
 	public NumConst right()
 	{
-		return origin().xn().add(size().xn());
+		if (v_r == null) v_r = super.right().freeze();
+		return v_r;
 	}
 	
 	
 	@Override
 	public NumConst top()
 	{
-		return origin().yn();
+		return pos.yn();
 	}
 	
 	
 	@Override
 	public NumConst bottom()
 	{
-		return origin().yn().add(size().yn());
+		if (v_b == null) v_b = super.bottom().freeze();
+		return v_b;
 	}
 	
 	
 	@Override
 	public VectConst topLeft()
 	{
-		return origin();
+		return pos;
 	}
 	
 	
 	@Override
 	public VectConst topCenter()
 	{
-		return origin().add(size().x() / 2, 0);
+		if (v_tc == null) v_tc = super.topCenter().freeze();
+		return v_tc;
 	}
 	
 	
 	@Override
 	public VectConst topRight()
 	{
-		return origin().add(size().x(), 0);
+		if (v_tr == null) v_tr = super.topRight().freeze();
+		return v_tr;
 	}
 	
 	
 	@Override
 	public VectConst centerLeft()
 	{
-		return origin().add(0, size().y() / 2);
+		if (v_cl == null) v_cl = super.centerLeft().freeze();
+		return v_cl;
 	}
 	
 	
 	@Override
 	public VectConst center()
 	{
-		return origin().add(size().half()).freeze();
+		if (v_c == null) v_c = super.center().freeze();
+		return v_c;
 	}
 	
 	
 	@Override
 	public VectConst centerRight()
 	{
-		return origin().add(size().x(), size().y() / 2);
+		if (v_cr == null) v_cr = super.centerRight().freeze();
+		return v_cr;
 	}
 	
 	
 	@Override
 	public VectConst bottomLeft()
 	{
-		return origin().add(0, size().y());
+		if (v_bl == null) v_bl = super.bottomLeft().freeze();
+		return v_bl;
 	}
 	
 	
 	@Override
 	public VectConst bottomCenter()
 	{
-		return origin().add(size().x() / 2, size().y());
+		if (v_bc == null) v_bc = super.bottomCenter().freeze();
+		return v_bc;
 	}
 	
 	
 	@Override
 	public VectConst bottomRight()
 	{
-		return origin().add(size()).freeze();
+		if (v_br == null) v_br = super.bottomRight().freeze();
+		return v_br;
 	}
 	
 }
diff --git a/src/mightypork/utils/math/rect/RectVectAdapter.java b/src/mightypork/utils/math/rect/RectVectAdapter.java
index 2403d65..fa8cce9 100644
--- a/src/mightypork/utils/math/rect/RectVectAdapter.java
+++ b/src/mightypork/utils/math/rect/RectVectAdapter.java
@@ -5,7 +5,7 @@ import mightypork.utils.math.vect.Vect;
 
 
 /**
- * Rect made of two {@link VectView}s
+ * Rect made of two {@link Vect}s
  * 
  * @author MightyPork
  */
diff --git a/src/mightypork/utils/math/vect/Vect.java b/src/mightypork/utils/math/vect/Vect.java
index edfa36d..5592df7 100644
--- a/src/mightypork/utils/math/vect/Vect.java
+++ b/src/mightypork/utils/math/vect/Vect.java
@@ -7,6 +7,7 @@ import mightypork.utils.math.Calc;
 import mightypork.utils.math.constraints.VectBound;
 import mightypork.utils.math.num.Num;
 import mightypork.utils.math.num.NumConst;
+import mightypork.utils.math.rect.Rect;
 
 
 /**
@@ -1102,4 +1103,34 @@ public abstract class Vect implements VectBound {
 		
 		return x() == other.x() && y() == other.y() && z() == other.z();
 	}
+	
+	
+	/**
+	 * Expand to a rect, with given growth to each side.
+	 * 
+	 * @param left
+	 * @param right
+	 * @param top
+	 * @param bottom
+	 * @return the rect
+	 */
+	public Rect expand(int left, int right, int top, int bottom)
+	{
+		return Rect.make(this, Vect.ZERO).grow(left, right, top, bottom);
+	}
+	
+	
+	/**
+	 * Expand to a rect, with given growth to each side.
+	 * 
+	 * @param left
+	 * @param right
+	 * @param top
+	 * @param bottom
+	 * @return the rect
+	 */
+	public Rect expand(Num left, Num right, Num top, Num bottom)
+	{
+		return Rect.make(this, Vect.ZERO).grow(left, right, top, bottom);
+	}
 }