Initial commit.

.classpath

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.6"/>
+	<classpathentry exported="true" kind="lib" path="lib/jinput.jar">
+		<attributes>
+			<attribute name="org.eclipse.jdt.launching.CLASSPATH_ATTR_LIBRARY_PATH_ENTRY" value="SpriteGen/lib"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry exported="true" kind="lib" path="lib/jogg-0.0.7.jar">
+		<attributes>
+			<attribute name="org.eclipse.jdt.launching.CLASSPATH_ATTR_LIBRARY_PATH_ENTRY" value="SpriteGen/lib"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry exported="true" kind="lib" path="lib/jorbis-0.0.15.jar">
+		<attributes>
+			<attribute name="org.eclipse.jdt.launching.CLASSPATH_ATTR_LIBRARY_PATH_ENTRY" value="SpriteGen/lib"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry exported="true" kind="lib" path="lib/lwjgl_util.jar">
+		<attributes>
+			<attribute name="org.eclipse.jdt.launching.CLASSPATH_ATTR_LIBRARY_PATH_ENTRY" value="SpriteGen/lib"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry exported="true" kind="lib" path="lib/lwjgl.jar">
+		<attributes>
+			<attribute name="org.eclipse.jdt.launching.CLASSPATH_ATTR_LIBRARY_PATH_ENTRY" value="SpriteGen/lib"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry exported="true" kind="lib" path="lib/slick-util.jar">
+		<attributes>
+			<attribute name="org.eclipse.jdt.launching.CLASSPATH_ATTR_LIBRARY_PATH_ENTRY" value="SpriteGen/lib"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

.gitignore

@@ -0,0 +1,5 @@
+/bin/
+/target/
+*.log
+.attach_pid*
+*~

.project

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>SpriteGen</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

.settings/org.eclipse.jdt.core.prefs

@@ -0,0 +1,11 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.6
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=1.6
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.6

res/models/turtle.mtl

@@ -0,0 +1,11 @@
+# Exported from Wings 3D 1.4.1
+newmtl turtle_auv
+Ns 100.0
+d 1.0
+illum 2
+Kd 1.0 1.0 1.0
+Ka 1.0 1.0 1.0
+Ks 1.0 1.0 1.0
+Ke 0.0 0.0 0.0
+map_Kd turtle.png
+

res/models/turtle2.mtl

@@ -0,0 +1,11 @@
+# Exported from Wings 3D 1.4.1
+newmtl turtle_auv
+Ns 100.0
+d 1.0
+illum 2
+Kd 1.0 1.0 1.0
+Ka 1.0 1.0 1.0
+Ks 1.0 1.0 1.0
+Ke 0.0 0.0 0.0
+map_Kd turtle.png
+

src/com/mykaruga/models/Models.java

@@ -0,0 +1,86 @@
+package com.mykaruga.models;
+
+
+import static org.lwjgl.opengl.GL11.*;
+
+import java.io.File;
+import java.nio.FloatBuffer;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Random;
+
+import net.spritegen.App;
+import net.spritegen.Constants;
+import net.spritegen.textures.TextureManager;
+import net.spritegen.util.Utils;
+
+import com.mykaruga.models.wavefront.loader.RenderModel;
+import com.porcupine.math.Calc;
+import com.porcupine.math.Calc.Buffers;
+
+
+public class Models {
+
+	public static RenderModel turtle;
+
+	
+	public static void load() {
+		turtle = new RenderModel(App.modelFile.getAbsolutePath());
+	}
+	
+	private static int beginList = -1;
+	private static int endList = -1;
+
+
+	public static void renderBegin() {
+		if (beginList == -1) {
+			beginList = glGenLists(1);
+			glNewList(beginList, GL_COMPILE);
+			glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
+
+			glEnable(GL_TEXTURE_2D);
+			glEnable(GL_COLOR_MATERIAL);
+			glEnable(GL_CULL_FACE);
+
+			float spec = (float) App.cfg.mat_specular;
+			float amb = (float) App.cfg.mat_ambient;
+			float diff = (float) App.cfg.mat_diffuse;
+
+			FloatBuffer buff = Calc.Buffers.alloc(4);
+
+			Calc.Buffers.fill(buff, amb, amb, amb, 1.0f);
+			glMaterial(GL_FRONT, GL_AMBIENT, Buffers.mkFillBuff(amb, amb, amb, 1f));
+
+			buff.clear();
+			Calc.Buffers.fill(buff, spec, spec, spec, 1.0f);
+			glLight(GL_LIGHT0, GL_SPECULAR, buff);
+			glMaterial(GL_FRONT, GL_SPECULAR, Buffers.mkFillBuff(spec, spec, spec, 1f));
+
+			buff.clear();
+			Calc.Buffers.fill(buff, diff, diff, diff, 1.0f);
+			glLight(GL_LIGHT0, GL_DIFFUSE, buff);
+			glMaterial(GL_FRONT, GL_DIFFUSE, Buffers.mkFillBuff(diff, diff, diff, 1f));
+			glMaterialf(GL_FRONT, GL_SHININESS, 8);
+
+			glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE);
+
+			glColor4d(1, 1, 1, 1);
+			glEndList();
+		}
+		glCallList(beginList);
+	}
+
+	public static void renderEnd() {
+		if (endList == -1) {
+			endList = glGenLists(1);
+			glNewList(endList, GL_COMPILE);
+			glDisable(GL_COLOR_MATERIAL);
+			glDisable(GL_CULL_FACE);
+			TextureManager.unbind();
+			glDisable(GL_TEXTURE_2D);
+			glEndList();
+		}
+		glCallList(endList);
+	}
+
+}

src/com/mykaruga/models/wavefront/loader/Face.java

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+package com.mykaruga.models.wavefront.loader;
+
+
+
+public class Face {
+
+	public static final int GL_TRIANGLES = 3;
+	public static final int GL_QUADS = 4;
+
+	private Vertex[] vertices;
+	private Vertex[] normals;
+	private TextureCoordinate[] textures;
+	private Material material;
+
+	private int type;
+
+	public Face copy() {
+		Face f = new Face();
+		f.setVertices(vertices);
+		f.setNormals(normals);
+		f.setTextures(textures);
+		f.setMaterial(material);
+		return f;
+	}
+
+	public Vertex[] getVertices() {
+		return vertices;
+	}
+
+	public void setVertices(Vertex[] vertices) {
+		this.vertices = vertices;
+	}
+
+	public int getType() {
+		return type;
+	}
+
+	public void setType(int type) {
+		this.type = type;
+	}
+
+	public Vertex[] getNormals() {
+		return normals;
+	}
+
+	public void setNormals(Vertex[] normals) {
+		this.normals = normals;
+	}
+
+	public TextureCoordinate[] getTextures() {
+		return textures;
+	}
+
+	public void setTextures(TextureCoordinate[] textures) {
+		this.textures = textures;
+	}
+
+	public Material getMaterial() {
+		return material;
+	}
+
+	public void setMaterial(Material material) {
+		this.material = material;
+	}
+
+
+}

src/com/mykaruga/models/wavefront/loader/LineParserFactory.java

@@ -0,0 +1,37 @@
+package com.mykaruga.models.wavefront.loader;
+
+
+import java.util.Hashtable;
+
+import com.mykaruga.models.wavefront.parser.DefaultParser;
+import com.mykaruga.models.wavefront.parser.LineParser;
+
+
+
+
+public abstract class LineParserFactory {
+
+	protected Hashtable<String, LineParser> parsers = new Hashtable<String, LineParser>();
+	protected RenderModel object = null;
+
+
+	public LineParser getLineParser(String line) {
+		if (line == null) return null;
+
+		line = line.replaceAll("  ", " ");
+		line = line.replaceAll("	", "");
+		String[] lineWords = line.split(" ");
+
+		if (lineWords.length < 1) return new DefaultParser();
+
+		String lineType = lineWords[0];
+
+		LineParser parser = parsers.get(lineType);
+		if (parser == null) {
+			parser = new DefaultParser();
+		}
+
+		parser.setWords(lineWords);
+		return parser;
+	}
+}

src/com/mykaruga/models/wavefront/loader/Material.java

@@ -0,0 +1,50 @@
+package com.mykaruga.models.wavefront.loader;
+
+
+import org.newdawn.slick.opengl.Texture;
+
+
+public class Material {
+
+	private Texture texture;
+	private Vertex Kd;
+	private String name;
+
+	public Material(String name) {
+		this.name = name;
+	}
+
+	public Material(Material other) {
+		//this.texture = other.texture;
+		this.Kd = other.Kd;
+		this.name = other.name;
+	}
+
+	public Texture getTexture() {
+		return texture;
+	}
+
+	public Material setTexture(Texture texture) {
+		this.texture = texture;
+		return this;
+	}
+
+	public Vertex getKd() {
+		return Kd;
+	}
+
+	public void setKa(Vertex kd) {
+		Kd = kd;
+	}
+
+	@Override
+	public String toString() {
+		return "MAT." + name;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+
+}

src/com/mykaruga/models/wavefront/loader/NormalParser.java

@@ -0,0 +1,33 @@
+package com.mykaruga.models.wavefront.loader;
+
+
+import com.mykaruga.models.wavefront.parser.LineParser;
+
+
+public class NormalParser extends LineParser {
+
+	Vertex vertex = null;
+
+	public NormalParser() {}
+
+	@Override
+	public void parse() {
+		vertex = new Vertex();
+
+		try {
+			vertex.setX(Float.parseFloat(words[1]));
+			vertex.setY(Float.parseFloat(words[2]));
+			vertex.setZ(Float.parseFloat(words[3]));
+		} catch (Exception e) {
+			throw new RuntimeException("NormalParser Error");
+		}
+
+	}
+
+	@Override
+	public void incoporateResults(RenderModel wavefrontObject) {
+		wavefrontObject.getNormals().add(vertex);
+
+	}
+
+}

src/com/mykaruga/models/wavefront/loader/RenderModel.java

@@ -0,0 +1,300 @@
+package com.mykaruga.models.wavefront.loader;
+
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
+import java.util.Hashtable;
+import java.util.Map.Entry;
+
+import net.spritegen.textures.TextureManager;
+import net.spritegen.util.Log;
+
+import org.lwjgl.opengl.GL11;
+import org.newdawn.slick.opengl.Texture;
+import org.newdawn.slick.util.ResourceLoader;
+
+import com.mykaruga.models.wavefront.parser.LineParser;
+import com.mykaruga.models.wavefront.parser.obj.ObjLineParserFactory;
+
+
+
+/**
+ * OBJ 3D object loaded and pre-rendered.
+ * 
+ * @author Fabien Sanglard
+ */
+public class RenderModel {
+
+	private static final boolean DEBUG = true;
+
+	public String replTexture = null;
+
+	private ArrayList<Vertex> vertices = new ArrayList<Vertex>();
+	private ArrayList<Vertex> normals = new ArrayList<Vertex>();
+	private ArrayList<TextureCoordinate> textures = new ArrayList<TextureCoordinate>();
+	private ArrayList<Face> faces = new ArrayList<Face>();
+
+	private ObjLineParserFactory parserFactory;
+	private Hashtable<String, Material> materials = new Hashtable<String, Material>();
+
+	// This variable is used for both parsing and rendition
+	private Material currentMaterial;
+
+	private String contextfolder = "";
+
+	public double radius = 0;
+
+	/**
+	 * Load object with alternate texture.
+	 * 
+	 * @param fileName
+	 * @param textureName
+	 */
+	public RenderModel(String fileName, String textureName) {
+		this.replTexture = textureName;
+
+		int lastSlashIndex = fileName.lastIndexOf('/');
+		if (lastSlashIndex != -1) this.contextfolder = fileName.substring(0, lastSlashIndex + 1);
+
+		lastSlashIndex = fileName.lastIndexOf('\\');
+		if (lastSlashIndex != -1) this.contextfolder = fileName.substring(0, lastSlashIndex + 1);
+
+		parse(fileName);
+
+		calculateRadius();
+
+	}
+
+//	/**
+//	 * Load object with alternate texture.
+//	 * 
+//	 * @param fileName
+//	 * @param textureName
+//	 */
+//	public RenderModel(RenderModel other, String textureName) {
+//		this.vertices = other.vertices;
+//		this.normals = other.normals;
+//		this.textures = other.textures;
+//		this.contextfolder = other.contextfolder;
+//		this.radius = other.radius;
+//
+//		String pathToTextureBinary = getContextfolder() + textureName;
+//		Texture texture = TextureManager.load(pathToTextureBinary);
+//		for (Entry<String, Material> e : other.materials.entrySet()) {
+//			materials.put(e.getKey(), new Material(e.getValue()).setTexture(texture));
+//		}
+//		for (Face f : other.faces) {
+//			Face f2;
+//			faces.add(f2 = f.copy());
+//			f2.setMaterial(materials.get(f2.getMaterial().getName()));
+//		}
+//
+//	}
+
+	public RenderModel(String fileName) {
+		int lastSlashIndex = fileName.lastIndexOf('/');
+		if (lastSlashIndex != -1) this.contextfolder = fileName.substring(0, lastSlashIndex + 1);
+
+		lastSlashIndex = fileName.lastIndexOf('\\');
+		if (lastSlashIndex != -1) this.contextfolder = fileName.substring(0, lastSlashIndex + 1);
+
+		parse(fileName);
+
+		calculateRadius();
+	}
+
+
+
+	private void calculateRadius() {
+		double currentNorm = 0;
+		for (Vertex vertex : vertices) {
+			currentNorm = vertex.norm();
+			if (currentNorm > radius) radius = currentNorm;
+		}
+
+	}
+
+
+	public String getContextfolder() {
+		return contextfolder;
+	}
+
+
+	public void parse(String fileName) {
+		parserFactory = new ObjLineParserFactory(this);
+
+
+		InputStream fileInput = ResourceLoader.getResourceAsStream(fileName);
+		if (fileInput == null) {
+			// Could not find the file in the jar.
+			try {
+				File file = new File(fileName);
+				if (file.exists()) fileInput = new FileInputStream(file);
+			} catch (Exception e2) {
+				e2.printStackTrace();
+			}
+		}
+
+
+		BufferedReader in = null;
+
+		try {
+			in = new BufferedReader(new InputStreamReader(fileInput));
+
+			String currentLine = null;
+			while ((currentLine = in.readLine()) != null)
+				parseLine(currentLine);
+
+			in.close();
+
+		} catch (Exception e) {
+			Log.e("Error reading file " + fileName, e);
+			throw new RuntimeException(e);
+		}
+
+
+//
+//		Log.finest("Loaded OBJ from file " + fileName);
+//		Log.finest(getVertices().size() + " vertices.");
+//		Log.finest(getNormals().size() + " normals.");
+//		Log.finest(getTextures().size() + " textures coordinates.");
+//		Log.finest(getFaces().size() + " faces.");
+	}
+
+	private int lineCounter = 0;
+
+	private void parseLine(String currentLine) {
+		if ("".equals(currentLine)) return;
+
+		LineParser parser = parserFactory.getLineParser(currentLine);
+		try {
+			parser.parse();
+			parser.incoporateResults(this);
+		} catch (Throwable t) {
+			Log.e("ERROR at line " + lineCounter + " : " + currentLine, t);
+			System.exit(1);
+		}
+		lineCounter++;
+	}
+
+	public int displayListId = 0;
+
+	public void render() {
+
+
+		if (displayListId != 0) {
+			GL11.glCallList(displayListId);
+			return;
+		}
+
+		displayListId = GL11.glGenLists(1);
+
+		GL11.glNewList(displayListId, GL11.GL_COMPILE);
+
+		Face face = null;
+		Material material = new Material("__non_existant");
+
+		for (int i = 0; i < getFaces().size(); i++) {
+			face = getFaces().get(i);
+
+			if (!material.equals(face.getMaterial())) {
+				// Set texture and setColor
+				material = face.getMaterial();
+				if (material == null) {
+					Log.w("No material in model!");
+				} else if (material.getTexture() != null) {
+					GL11.glBindTexture(GL11.GL_TEXTURE_2D, material.getTexture().getTextureID());
+				} else
+					GL11.glBindTexture(GL11.GL_TEXTURE_2D, 0);
+
+				if (material != null && material.getKd() != null)
+					GL11.glColor3f(material.getKd().getX(), material.getKd().getY(), material.getKd().getZ());
+			}
+
+			if (face.getType() == Face.GL_TRIANGLES) {
+				GL11.glBegin(GL11.GL_TRIANGLES);
+			} else if (face.getType() == Face.GL_QUADS) {
+				GL11.glBegin(GL11.GL_QUADS);
+			} else {
+				GL11.glBegin(GL11.GL_POLYGON);
+			}
+
+			Vertex vertex = null;
+			Vertex normal = null;
+			TextureCoordinate textureCoo = null;
+			for (int j = 0; j < face.getVertices().length; j++) {
+				vertex = face.getVertices()[j];
+				if (j < face.getNormals().length && face.getNormals()[j] != null) {
+					normal = face.getNormals()[j];
+					GL11.glNormal3f(normal.getX(), normal.getY(), normal.getZ());
+				}
+
+				if (j < face.getTextures().length && face.getTextures()[j] != null) {
+					textureCoo = face.getTextures()[j];
+					GL11.glTexCoord2f(textureCoo.getU(), textureCoo.getV());
+					//GL11.glTexCoord2f(textureCoo.getV(),textureCoo.getU());
+				}
+
+				GL11.glVertex3f(vertex.getX(), vertex.getY(), vertex.getZ());
+			}
+			GL11.glEnd();
+		}
+		GL11.glEndList();
+	}
+
+	public void setMaterials(Hashtable<String, Material> materials) {
+		this.materials = materials;
+	}
+
+	public void setTextures(ArrayList<TextureCoordinate> textures) {
+		this.textures = textures;
+	}
+
+	public ArrayList<TextureCoordinate> getTextures() {
+		return textures;
+	}
+
+	public void setVertices(ArrayList<Vertex> vertices) {
+		this.vertices = vertices;
+	}
+
+	public ArrayList<Vertex> getVertices() {
+		return vertices;
+	}
+
+	public void setFaces(ArrayList<Face> faces) {
+		this.faces = faces;
+	}
+
+	public ArrayList<Face> getFaces() {
+		return faces;
+	}
+
+	public void setNormals(ArrayList<Vertex> normals) {
+		this.normals = normals;
+	}
+
+	public ArrayList<Vertex> getNormals() {
+		return normals;
+	}
+
+	public Hashtable<String, Material> getMaterials() {
+
+		return this.materials;
+	}
+
+	public Material getCurrentMaterial() {
+		return currentMaterial;
+	}
+
+	public void setCurrentMaterial(Material currentMaterial) {
+		this.currentMaterial = currentMaterial;
+	}
+
+
+
+}

src/com/mykaruga/models/wavefront/loader/TextureCoordinate.java

@@ -0,0 +1,35 @@
+package com.mykaruga.models.wavefront.loader;
+
+
+public class TextureCoordinate {
+
+	private float u;
+	private float v;
+	private float w;
+
+	public float getU() {
+		return u;
+	}
+
+	public void setU(float u) {
+		this.u = u;
+	}
+
+	public float getV() {
+		return v;
+	}
+
+	public void setV(float v) {
+		this.v = v;
+	}
+
+	public float getW() {
+		return w;
+	}
+
+	public void setW(float w) {
+		this.w = w;
+	}
+
+
+}

src/com/mykaruga/models/wavefront/loader/Vertex.java

@@ -0,0 +1,45 @@
+package com.mykaruga.models.wavefront.loader;
+
+
+public class Vertex {
+
+	private float x;
+	private float y;
+	private float z;
+
+	public Vertex(float x, float y, float z) {
+		this.x = x;
+		this.y = y;
+		this.z = z;
+	}
+
+	public Vertex() {}
+
+	public float getX() {
+		return x;
+	}
+
+	public void setX(float x) {
+		this.x = x;
+	}
+
+	public float getY() {
+		return y;
+	}
+
+	public void setY(float y) {
+		this.y = y;
+	}
+
+	public float getZ() {
+		return z;
+	}
+
+	public void setZ(float z) {
+		this.z = z;
+	}
+
+	public double norm() {
+		return Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2) + Math.pow(z, 2));
+	}
+}

src/com/mykaruga/models/wavefront/parser/CommentParser.java

@@ -0,0 +1,15 @@
+package com.mykaruga.models.wavefront.parser;
+
+
+import com.mykaruga.models.wavefront.loader.RenderModel;
+
+
+public class CommentParser extends LineParser {
+
+	@Override
+	public void incoporateResults(RenderModel wavefrontObject) {}
+
+	@Override
+	public void parse() {}
+
+}

src/com/mykaruga/models/wavefront/parser/DefaultParser.java

@@ -0,0 +1,19 @@
+package com.mykaruga.models.wavefront.parser;
+
+
+import com.mykaruga.models.wavefront.loader.RenderModel;
+
+
+public class DefaultParser extends LineParser {
+
+	public DefaultParser() {}
+
+	@Override
+	public void parse() {
+
+	}
+
+	@Override
+	public void incoporateResults(RenderModel wavefrontObject) {}
+
+}

src/com/mykaruga/models/wavefront/parser/LineParser.java

@@ -0,0 +1,19 @@
+package com.mykaruga.models.wavefront.parser;
+
+
+import com.mykaruga.models.wavefront.loader.RenderModel;
+
+
+public abstract class LineParser {
+
+	protected String[] words = null;
+
+	public void setWords(String[] words) {
+		this.words = words;
+	}
+
+	public abstract void parse();
+
+	public abstract void incoporateResults(RenderModel wavefrontObject);
+
+}

src/com/mykaruga/models/wavefront/parser/mtl/KdMapParser.java

@@ -0,0 +1,41 @@
+package com.mykaruga.models.wavefront.parser.mtl;
+
+
+import net.spritegen.textures.TextureManager;
+
+import org.newdawn.slick.opengl.Texture;
+
+import com.mykaruga.models.wavefront.loader.Material;
+import com.mykaruga.models.wavefront.loader.RenderModel;
+import com.mykaruga.models.wavefront.parser.LineParser;
+
+
+public class KdMapParser extends LineParser {
+
+	private Texture texture = null;
+	private RenderModel object = null;
+	private String textureFileName = null;
+
+	public KdMapParser(RenderModel object) {
+		this.object = object;
+	}
+
+	@Override
+	public void incoporateResults(RenderModel wavefrontObject) {
+
+		if (texture != null) {
+			Material currentMaterial = wavefrontObject.getCurrentMaterial();
+			currentMaterial.setTexture(texture);
+		}
+	}
+
+	@Override
+	public void parse() {
+		String textureFileName = words[words.length - 1];
+		String pathToTextureBinary = object.getContextfolder() + (object.replTexture == null ? textureFileName : object.replTexture);
+
+		// load texture, if already loaded, use the same instance.
+		texture = TextureManager.load(pathToTextureBinary);
+	}
+
+}

src/com/mykaruga/models/wavefront/parser/mtl/KdParser.java

@@ -0,0 +1,35 @@
+package com.mykaruga.models.wavefront.parser.mtl;
+
+
+import com.mykaruga.models.wavefront.loader.Material;
+import com.mykaruga.models.wavefront.loader.RenderModel;
+import com.mykaruga.models.wavefront.loader.Vertex;
+import com.mykaruga.models.wavefront.parser.LineParser;
+
+
+
+public class KdParser extends LineParser {
+
+	Vertex kd = null;
+
+	@Override
+	public void incoporateResults(RenderModel wavefrontObject) {
+		Material currentMaterial = wavefrontObject.getCurrentMaterial();
+		currentMaterial.setKa(kd);
+
+	}
+
+	@Override
+	public void parse() {
+		kd = new Vertex();
+
+		try {
+			kd.setX(Float.parseFloat(words[1]));
+			kd.setY(Float.parseFloat(words[2]));
+			kd.setZ(Float.parseFloat(words[3]));
+		} catch (Exception e) {
+			throw new RuntimeException("VertexParser Error");
+		}
+	}
+
+}

src/com/mykaruga/models/wavefront/parser/mtl/MaterialFileParser.java

@@ -0,0 +1,74 @@
+package com.mykaruga.models.wavefront.parser.mtl;
+
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.Hashtable;
+
+
+import org.newdawn.slick.util.ResourceLoader;
+
+import com.mykaruga.models.wavefront.loader.Material;
+import com.mykaruga.models.wavefront.loader.RenderModel;
+import com.mykaruga.models.wavefront.parser.LineParser;
+
+
+
+public class MaterialFileParser extends LineParser {
+
+	Hashtable<String, Material> materials = new Hashtable<String, Material>();
+	private RenderModel object;
+	private MtlLineParserFactory parserFactory = null;
+
+	public MaterialFileParser(RenderModel object) {
+		this.object = object;
+		this.parserFactory = new MtlLineParserFactory(object);
+	}
+
+	@Override
+	public void incoporateResults(RenderModel wavefrontObject) {
+		// Material are directly added by the parser, no need to do anything here...
+	}
+
+	@Override
+	public void parse() {
+		String filename = words[1];
+
+		String pathToMTL = object.getContextfolder() + filename;
+
+		InputStream fileInput = ResourceLoader.getResourceAsStream(pathToMTL);
+		if (fileInput == null) {
+			// Could not find the file in the jar.
+			try {
+				File file = new File(pathToMTL);
+				if (file.exists()) fileInput = new FileInputStream(file);
+			} catch (Exception e2) {
+				e2.printStackTrace();
+			}
+		}
+
+		try {
+			BufferedReader in = new BufferedReader(new InputStreamReader(fileInput));
+
+			String currentLine = null;
+			while ((currentLine = in.readLine()) != null) {
+
+				LineParser parser = parserFactory.getLineParser(currentLine);
+				parser.parse();
+				parser.incoporateResults(object);
+			}
+
+			if (in != null) in.close();
+
+		} catch (Exception e) {
+			e.printStackTrace();
+			throw new RuntimeException("Error parsing " + pathToMTL);
+		}
+
+	}
+
+
+}

src/com/mykaruga/models/wavefront/parser/mtl/MaterialParser.java

@@ -0,0 +1,27 @@
+package com.mykaruga.models.wavefront.parser.mtl;
+
+
+import com.mykaruga.models.wavefront.loader.Material;
+import com.mykaruga.models.wavefront.loader.RenderModel;
+import com.mykaruga.models.wavefront.parser.LineParser;
+
+
+
+public class MaterialParser extends LineParser {
+
+	String materialName = "";
+
+	@Override
+	public void incoporateResults(RenderModel wavefrontObject) {
+		Material newMaterial = new Material(materialName);
+
+		wavefrontObject.getMaterials().put(materialName, newMaterial);
+		wavefrontObject.setCurrentMaterial(newMaterial);
+	}
+
+	@Override
+	public void parse() {
+		materialName = words[1];
+	}
+
+}

src/com/mykaruga/models/wavefront/parser/mtl/MtlLineParserFactory.java

@@ -0,0 +1,24 @@
+package com.mykaruga.models.wavefront.parser.mtl;
+
+
+import com.mykaruga.models.wavefront.loader.LineParserFactory;
+import com.mykaruga.models.wavefront.loader.RenderModel;
+import com.mykaruga.models.wavefront.parser.CommentParser;
+
+
+
+public class MtlLineParserFactory extends LineParserFactory {
+
+
+
+	public MtlLineParserFactory(RenderModel object) {
+		this.object = object;
+		parsers.put("newmtl", new MaterialParser());
+		parsers.put("Kd", new KdParser());
+		parsers.put("map_Kd", new KdMapParser(object));
+		parsers.put("#", new CommentParser());
+	}
+
+
+
+}

src/com/mykaruga/models/wavefront/parser/obj/FaceParser.java

@@ -0,0 +1,98 @@
+package com.mykaruga.models.wavefront.parser.obj;
+
+
+import com.mykaruga.models.wavefront.loader.Face;
+import com.mykaruga.models.wavefront.loader.RenderModel;
+import com.mykaruga.models.wavefront.loader.TextureCoordinate;
+import com.mykaruga.models.wavefront.loader.Vertex;
+import com.mykaruga.models.wavefront.parser.LineParser;
+
+
+
+public class FaceParser extends LineParser {
+
+	private Face face;
+	private Vertex[] vertices;
+	private Vertex[] normals;
+	private TextureCoordinate[] textures;
+	private RenderModel object = null;
+
+	public FaceParser(RenderModel object) {
+		this.object = object;
+	}
+
+	@Override
+	public void parse() {
+		face = new Face();
+		normals = new Vertex[words.length - 1];
+		textures = new TextureCoordinate[words.length - 1];
+		switch (words.length) {
+			case 4:
+				parseTriangles();
+				break;
+			case 5:
+				parseQuad();
+				break;
+			default:
+				parsePolygon();
+		}
+
+
+	}
+
+	private void parseTriangles() {
+		face.setType(Face.GL_TRIANGLES);
+		parseLine(3);
+	}
+
+	private void parsePolygon() {
+		face.setType(words.length - 1);
+		parseLine(words.length - 1);
+	}
+
+	private void parseLine(int vertexCount) {
+		String[] rawFaces = null;
+		int currentValue;
+		vertices = new Vertex[vertexCount];
+		for (int i = 1; i <= vertexCount; i++) {
+			rawFaces = words[i].split("/");
+
+			// v
+			currentValue = Integer.parseInt(rawFaces[0]);
+			vertices[i - 1] = object.getVertices().get(currentValue - 1);	// -1 because references starts at 1
+
+			if (rawFaces.length == 1) continue;
+
+			if (!"".equals(rawFaces[1]) && rawFaces.length == 3) {
+				currentValue = Integer.parseInt(rawFaces[1]);
+				if (currentValue <= object.getTextures().size())  // This is to compensate the fact that if no texture is in the obj file, sometimes '1' is put instead of 'blank' (we find coord1/1/coord3 instead of coord1//coord3 or coord1/coord3)
+					textures[i - 1] = object.getTextures().get(currentValue - 1); // -1 because references starts at 1
+			}
+
+
+			currentValue = Integer.parseInt(rawFaces[rawFaces.length - 1]);
+
+			normals[i - 1] = object.getNormals().get(currentValue - 1); 	// -1 because references starts at 1
+		}
+	}
+
+	private void parseQuad() {
+		face.setType(Face.GL_QUADS);
+		parseLine(4);
+	}
+
+	@Override
+	public void incoporateResults(RenderModel wavefrontObject) {
+
+		face.setNormals(this.normals);
+		face.setVertices(this.vertices);
+		face.setTextures(this.textures);
+		if (wavefrontObject.getCurrentMaterial() != null) {
+			face.setMaterial(wavefrontObject.getCurrentMaterial());
+		}
+		wavefrontObject.getFaces().add(face);
+
+	}
+
+	static int faceC = 0;
+}

src/com/mykaruga/models/wavefront/parser/obj/FreeFormParser.java

@@ -0,0 +1,21 @@
+package com.mykaruga.models.wavefront.parser.obj;
+
+
+import com.mykaruga.models.wavefront.loader.RenderModel;
+import com.mykaruga.models.wavefront.parser.LineParser;
+
+
+
+public class FreeFormParser extends LineParser {
+
+	public FreeFormParser() {}
+
+	@Override
+	public void parse() {
+
+	}
+
+	@Override
+	public void incoporateResults(RenderModel wavefrontObject) {}
+
+}

src/com/mykaruga/models/wavefront/parser/obj/MaterialParser.java

@@ -0,0 +1,27 @@
+package com.mykaruga.models.wavefront.parser.obj;
+
+
+import com.mykaruga.models.wavefront.loader.Material;
+import com.mykaruga.models.wavefront.loader.RenderModel;
+import com.mykaruga.models.wavefront.parser.LineParser;
+
+
+
+public class MaterialParser extends LineParser {
+	String materialName = "";
+
+	@Override
+	public void parse() {
+		materialName = words[1];
+	}
+
+	@Override
+	public void incoporateResults(RenderModel wavefrontObject) {
+		Material newMaterial = wavefrontObject.getMaterials().get(materialName);
+		wavefrontObject.setCurrentMaterial(newMaterial);
+
+	}
+
+
+
+}

src/com/mykaruga/models/wavefront/parser/obj/ObjLineParserFactory.java

@@ -0,0 +1,29 @@
+package com.mykaruga.models.wavefront.parser.obj;
+
+
+import com.mykaruga.models.wavefront.loader.LineParserFactory;
+import com.mykaruga.models.wavefront.loader.NormalParser;
+import com.mykaruga.models.wavefront.loader.RenderModel;
+import com.mykaruga.models.wavefront.parser.CommentParser;
+import com.mykaruga.models.wavefront.parser.mtl.MaterialFileParser;
+
+
+
+public class ObjLineParserFactory extends LineParserFactory {
+
+
+
+	public ObjLineParserFactory(RenderModel object) {
+		this.object = object;
+		parsers.put("v", new VertexParser());
+		parsers.put("vn", new NormalParser());
+		parsers.put("vp", new FreeFormParser());
+		parsers.put("vt", new TextureCooParser());
+		parsers.put("f", new FaceParser(object));
+		parsers.put("#", new CommentParser());
+		parsers.put("mtllib", new MaterialFileParser(object));
+		parsers.put("usemtl", new MaterialParser());
+	}
+
+
+}

src/com/mykaruga/models/wavefront/parser/obj/TextureCooParser.java

@@ -0,0 +1,37 @@
+package com.mykaruga.models.wavefront.parser.obj;
+
+
+import com.mykaruga.models.wavefront.loader.RenderModel;
+import com.mykaruga.models.wavefront.loader.TextureCoordinate;
+import com.mykaruga.models.wavefront.parser.LineParser;
+
+
+
+public class TextureCooParser extends LineParser {
+
+	private TextureCoordinate coordinate = null;
+
+	public TextureCooParser() {}
+
+	@Override
+	public void parse() {
+		coordinate = new TextureCoordinate();
+		try {
+			if (words.length >= 2) coordinate.setU(Float.parseFloat(words[1]));
+
+			if (words.length >= 3) coordinate.setV(1 - Float.parseFloat(words[2]));		// OBJ origin is at upper left, OpenGL origin is	 at lower left.
+
+			if (words.length >= 4) coordinate.setW(Float.parseFloat(words[3]));
+
+		} catch (Exception e) {
+			throw new RuntimeException("TextureParser Error");
+		}
+	}
+
+	@Override
+	public void incoporateResults(RenderModel wavefrontObject) {
+		wavefrontObject.getTextures().add(coordinate);
+
+	}
+
+}

src/com/mykaruga/models/wavefront/parser/obj/VertexParser.java

@@ -0,0 +1,34 @@
+package com.mykaruga.models.wavefront.parser.obj;
+
+
+import com.mykaruga.models.wavefront.loader.RenderModel;
+import com.mykaruga.models.wavefront.loader.Vertex;
+import com.mykaruga.models.wavefront.parser.LineParser;
+
+
+
+public class VertexParser extends LineParser {
+
+	Vertex vertex = null;
+
+	public VertexParser() {}
+
+	@Override
+	public void parse() {
+		vertex = new Vertex();
+
+		try {
+			vertex.setX(Float.parseFloat(words[1]));
+			vertex.setY(Float.parseFloat(words[2]));
+			vertex.setZ(Float.parseFloat(words[3]));
+		} catch (Exception e) {
+			throw new RuntimeException("VertexParser Error");
+		}
+	}
+
+	@Override
+	public void incoporateResults(RenderModel wavefrontObject) {
+		wavefrontObject.getVertices().add(vertex);
+	}
+
+}

src/com/porcupine/color/HSV.java

@@ -0,0 +1,152 @@
+package com.porcupine.color;
+
+
+import java.awt.Color;
+
+import com.porcupine.math.Calc;
+
+
+/**
+ * HSV color
+ * 
+ * @author MightyPork
+ */
+public class HSV {
+
+	/** H */
+	public double h;
+	/** S */
+	public double s;
+	/** V */
+	public double v;
+
+	/**
+	 * Create black color 0,0,0
+	 */
+	public HSV() {}
+
+	/**
+	 * Color from HSV 0-1
+	 * 
+	 * @param h
+	 * @param s
+	 * @param v
+	 */
+	public HSV(Number h, Number s, Number v) {
+		this.h = h.doubleValue();
+		this.s = s.doubleValue();
+		this.v = v.doubleValue();
+		norm();
+	}
+
+	/**
+	 * @return hue 0-1
+	 */
+	public double h() {
+		return h;
+	}
+
+	/**
+	 * @return saturation 0-1
+	 */
+	public double s() {
+		return s;
+	}
+
+	/**
+	 * @return value/brightness 0-1
+	 */
+	public double v() {
+		return v;
+	}
+
+	/**
+	 * Set color to other color
+	 * 
+	 * @param copied copied color
+	 * @return this
+	 */
+	public HSV setTo(HSV copied) {
+
+		h = copied.h;
+		s = copied.s;
+		v = copied.v;
+
+		norm();
+		return this;
+	}
+
+	/**
+	 * Set to H,S,V 0-1
+	 * 
+	 * @param h hue
+	 * @param s saturation
+	 * @param v value
+	 * @return this
+	 */
+	public HSV setTo(Number h, Number s, Number v) {
+		this.h = h.doubleValue();
+		this.s = s.doubleValue();
+		this.v = v.doubleValue();
+		norm();
+		return this;
+	}
+
+	/**
+	 * Fix numbers out of range 0-1
+	 */
+	public void norm() {
+		h = Calc.clampd(h, 0, 1);
+		s = Calc.clampd(s, 0, 1);
+		v = Calc.clampd(v, 0, 1);
+	}
+
+	/**
+	 * Convert to RGB
+	 * 
+	 * @return RGB representation
+	 */
+	public RGB toRGB() {
+		norm();
+
+		int rgb = Color.HSBtoRGB((float) h, (float) s, (float) v);
+
+		return RGB.fromHex(rgb);
+	}
+
+	/**
+	 * Make from RGB
+	 * 
+	 * @param color RGB
+	 * @return HSV
+	 */
+	public static HSV fromRGB(RGB color) {
+		return color.toHSV();
+	}
+
+	@Override
+	public String toString() {
+		return "HSV[" + h + ";" + s + ";" + v + "]";
+	}
+
+	@Override
+	public boolean equals(Object obj) {
+		if (obj == null) return false;
+		if (!(obj instanceof HSV)) return false;
+		return ((HSV) obj).h == h && ((HSV) obj).s == s && ((HSV) obj).v == v;
+	}
+
+	@Override
+	public int hashCode() {
+		return Double.valueOf(h).hashCode() ^ Double.valueOf(s).hashCode() ^ Double.valueOf(v).hashCode();
+	}
+
+	/**
+	 * Get a copy
+	 * 
+	 * @return copy
+	 */
+	public HSV copy() {
+		return new HSV().setTo(this);
+	}
+}

src/com/porcupine/color/RGB.java

@@ -0,0 +1,336 @@
+package com.porcupine.color;
+
+
+import java.awt.Color;
+
+import com.porcupine.math.Calc;
+
+
+/**
+ * RGB color
+ * 
+ * @author MightyPork
+ */
+public class RGB {
+
+	/** White */
+	public static final RGB WHITE = new RGB(1, 1, 1);
+	/** Black */
+	public static final RGB BLACK = new RGB(0, 0, 0);
+	/** Red */
+	public static final RGB RED = new RGB(1, 0, 0);
+	/** Lime green */
+	public static final RGB GREEN = new RGB(0, 1, 0);
+	/** Blue */
+	public static final RGB BLUE = new RGB(0, 0, 1);
+	/** Yellow */
+	public static final RGB YELLOW = new RGB(1, 1, 0);
+	/** Purple */
+	public static final RGB PURPLE = new RGB(1, 0, 1);
+	/** Cyan */
+	public static final RGB CYAN = new RGB(0, 1, 1);
+	/** orange */
+	public static final RGB ORANGE = new RGB(1, 0.6, 0);
+	/** no color (alpha=0) */
+	public static final RGB TRANSPARENT = new RGB(0, 0, 0, 0);
+
+	/** R */
+	public double r;
+	/** G */
+	public double g;
+	/** B */
+	public double b;
+	/** ALPHA */
+	public double a = 1;
+
+	/**
+	 * Create black color 0,0,0
+	 */
+	public RGB() {}
+
+	/**
+	 * Get copy with custom alpha
+	 * 
+	 * @param alpha alpha to set
+	 * @return copy w/ alpha
+	 */
+	public RGB setAlpha(double alpha) {
+		return copy().setAlpha_ip(alpha);
+	}
+
+	/**
+	 * set alpha IP
+	 * 
+	 * @param alpha alpha to set
+	 * @return this
+	 */
+	public RGB setAlpha_ip(double alpha) {
+		a = alpha;
+		norm();
+		return this;
+	}
+
+	/**
+	 * Get copy.
+	 * 
+	 * @return copy
+	 */
+	public RGB copy() {
+		return new RGB(r, g, b, a);
+	}
+
+	/**
+	 * Get copy with alpha multiplied by custom value
+	 * 
+	 * @param alpha alpha to set
+	 * @return copy w/ alpha
+	 */
+	public RGB mulAlpha(double alpha) {
+		return copy().mulAlpha_ip(alpha);
+	}
+
+	/**
+	 * Multiply alpha by given number
+	 * 
+	 * @param alpha alpha multiplier
+	 * @return this
+	 */
+	public RGB mulAlpha_ip(double alpha) {
+		a *= alpha;
+		norm();
+		return this;
+	}
+
+	/**
+	 * Color from RGB 0-1
+	 * 
+	 * @param r red
+	 * @param g green
+	 * @param b blue
+	 */
+	public RGB(Number r, Number g, Number b) {
+		this.r = r.doubleValue();
+		this.g = g.doubleValue();
+		this.b = b.doubleValue();
+		norm();
+	}
+
+	/**
+	 * Color from RGB 0-1
+	 * 
+	 * @param r red
+	 * @param g green
+	 * @param b blue
+	 * @param a alpha
+	 */
+	public RGB(Number r, Number g, Number b, Number a) {
+		this.r = r.doubleValue();
+		this.g = g.doubleValue();
+		this.b = b.doubleValue();
+		this.a = a.doubleValue();
+		norm();
+	}
+
+	/**
+	 * Color from hex 0xRRGGBB
+	 * 
+	 * @param hex hex integer
+	 */
+	public RGB(int hex) {
+		setTo(RGB.fromHex(hex));
+		norm();
+	}
+
+	/**
+	 * Color from hex 0xRRGGBB
+	 * 
+	 * @param hex hex integer
+	 * @param alpha alpha color
+	 */
+	public RGB(int hex, double alpha) {
+		setTo(RGB.fromHex(hex));
+		a = alpha;
+		norm();
+	}
+
+	/**
+	 * Color from other RGB and alpha channel
+	 * 
+	 * @param color other RGB color
+	 * @param alpha new alpha channel
+	 */
+	public RGB(RGB color, double alpha) {
+		setTo(color);
+		setAlpha_ip(alpha);
+	}
+
+	/**
+	 * @return red channel 0-1
+	 */
+	public double r() {
+		return r;
+	}
+
+	/**
+	 * @return green channel 0-1
+	 */
+	public double g() {
+		return g;
+	}
+
+	/**
+	 * @return blue channel 0-1
+	 */
+	public double b() {
+		return b;
+	}
+
+	/**
+	 * @return alpha 0-1
+	 */
+	public double a() {
+		return a;
+	}
+
+	/**
+	 * Set color to other color
+	 * 
+	 * @param copied copied color
+	 * @return this
+	 */
+	public RGB setTo(RGB copied) {
+
+		r = copied.r;
+		g = copied.g;
+		b = copied.b;
+		a = copied.a;
+
+		norm();
+		return this;
+	}
+
+	/**
+	 * Set to represent hex color
+	 * 
+	 * @param hex hex integer RRGGBB
+	 * @return this
+	 */
+	public RGB setTo(int hex) {
+		setTo(RGB.fromHex(hex));
+		norm();
+		return this;
+	}
+
+	/**
+	 * Set to R,G,B 0-1
+	 * 
+	 * @param r red
+	 * @param g green
+	 * @param b blue
+	 * @param a alpha
+	 * @return this
+	 */
+	public RGB setTo(Number r, Number g, Number b, Number a) {
+		this.r = r.doubleValue();
+		this.g = g.doubleValue();
+		this.b = b.doubleValue();
+		this.a = a.doubleValue();
+		norm();
+		return this;
+	}
+
+	/**
+	 * Set to R,G,B 0-1
+	 * 
+	 * @param r red
+	 * @param g green
+	 * @param b blue
+	 * @return this
+	 */
+	public RGB setTo(Number r, Number g, Number b) {
+		this.r = r.doubleValue();
+		this.g = g.doubleValue();
+		this.b = b.doubleValue();
+		this.a = 1;
+		norm();
+		return this;
+	}
+
+	/**
+	 * Fix numbers out of range 0-1
+	 * 
+	 * @return this
+	 */
+	public RGB norm() {
+		r = Calc.clampd(r, 0, 1);
+		g = Calc.clampd(g, 0, 1);
+		b = Calc.clampd(b, 0, 1);
+		a = Calc.clampd(a, 0, 1);
+		return this;
+	}
+
+	/**
+	 * Get hex value 0xRRGGBB
+	 * 
+	 * @return hex value RRGGBB
+	 */
+	public int getHex() {
+		int ri = (int) Math.round(r * 255);
+		int gi = (int) Math.round(g * 255);
+		int bi = (int) Math.round(b * 255);
+		return (ri << 16) | (gi << 8) | bi;
+	}
+
+	/**
+	 * Convert to HSV
+	 * 
+	 * @return HSV representation
+	 */
+	public HSV toHSV() {
+		float[] hsv = { 0, 0, 0 };
+		Color.RGBtoHSB((int) (r * 255), (int) (g * 255), (int) (b * 255), hsv);
+		return new HSV(hsv[0], hsv[1], hsv[2]);
+	}
+
+	/**
+	 * Create color from hex 0xRRGGBB
+	 * 
+	 * @param hex hex RRGGBB
+	 * @return the new color
+	 */
+	public static RGB fromHex(int hex) {
+		int bi = hex & 0xff;
+		int gi = (hex >> 8) & 0xff;
+		int ri = (hex >> 16) & 0xff;
+		return new RGB(ri / 255D, gi / 255D, bi / 255D);
+	}
+
+
+	/**
+	 * Make from HSV
+	 * 
+	 * @param color HSV color
+	 * @return RGB
+	 */
+	public static RGB fromHSV(HSV color) {
+		return color.toRGB();
+	}
+
+	@Override
+	public String toString() {
+		return "RGB[" + r + ";" + g + ";" + b + ";" + a + "]";
+	}
+
+	@Override
+	public boolean equals(Object obj) {
+		if (obj == null) return false;
+		if (!(obj instanceof RGB)) return false;
+		return ((RGB) obj).r == r && ((RGB) obj).g == g && ((RGB) obj).b == b && ((RGB) obj).a == a;
+	}
+
+	@Override
+	public int hashCode() {
+		return Double.valueOf(r).hashCode() ^ Double.valueOf(g).hashCode() ^ Double.valueOf(b).hashCode() ^ Double.valueOf(a).hashCode();
+	}
+
+}

src/com/porcupine/coord/Coord.java

@@ -0,0 +1,729 @@
+package com.porcupine.coord;
+
+
+import java.util.Random;
+
+import com.porcupine.math.Calc;
+
+
+/**
+ * Coordinate class, object with three or two double coordinates.<br>
+ * 
+ * @author MightyPork
+ */
+public class Coord {
+	/** Zero Coord */
+	public static final Coord ZERO = new Coord(0, 0);
+	/** Coord [1;1;1] */
+	public static final Coord ONE = new Coord(1, 1, 1);
+
+	/** RNG */
+	protected static Random rand = new Random();
+	/** X coordinate */
+	public double x = 0;
+
+	/** Y coordinate */
+	public double y = 0;
+
+	/** Z coordinate */
+	public double z = 0;
+
+	/**
+	 * Create zero coord
+	 */
+	public Coord() {}
+
+	/**
+	 * Create 2D coord
+	 * 
+	 * @param x x coordinate
+	 * @param y y coordinate
+	 */
+	public Coord(Number x, Number y) {
+		setTo(x, y);
+	}
+
+	/**
+	 * Create 3D coord
+	 * 
+	 * @param x x coordinate
+	 * @param y y coordinate
+	 * @param z z coordinate
+	 */
+	public Coord(Number x, Number y, Number z) {
+		setTo(x, y, z);
+	}
+
+	/**
+	 * Create coord as a copy of another
+	 * 
+	 * @param copied copied coord
+	 */
+	public Coord(Coord copied) {
+		this.x = copied.x;
+		this.y = copied.y;
+		this.z = copied.z;
+	}
+
+	/**
+	 * Convert X and Y coordinates of this coord to a new CoordI.
+	 * 
+	 * @return the new CoordI
+	 */
+	public CoordI toCoordI() {
+		return new CoordI((int) Math.round(x), (int) Math.round(y));
+	}
+
+	/**
+	 * Generate random coord (gaussian)
+	 * 
+	 * @param max max distance from 0
+	 * @return new coord
+	 */
+	public static Coord random(double max) {
+		return new Coord(Calc.clampd(rand.nextGaussian() * max, -max * 2, max * 2), Calc.clampd(rand.nextGaussian() * max, -max * 2, max * 2),
+				Calc.clampd(rand.nextGaussian() * max, -max * 2, max * 2));
+	}
+
+	/**
+	 * Generate random coord (min-max)
+	 * 
+	 * @param min min offset
+	 * @param max max offset
+	 * @return new coord
+	 */
+	public static Coord random(double min, double max) {
+		return new Coord((rand.nextBoolean() ? -1 : 1) * (min + rand.nextDouble() * (max - min)), (rand.nextBoolean() ? -1 : 1)
+				* (min + rand.nextDouble() * (max - min)), (rand.nextBoolean() ? -1 : 1) * (min + rand.nextDouble() * (max - min)));
+	}
+
+	/**
+	 * offset randomly in place
+	 * 
+	 * @param max max +- offset
+	 * @return this
+	 */
+	public Coord random_offset_ip(double max) {
+		return add(random(max));
+	}
+
+	/**
+	 * offset randomly in place
+	 * 
+	 * @param min min offset
+	 * @param max max offset
+	 * @return this
+	 */
+	public Coord random_offset_ip(double min, double max) {
+		add(random(min, max));
+		return this;
+	}
+
+	/**
+	 * Set to max values of this and other coord
+	 * 
+	 * @param other other coord
+	 */
+	public void setMax(Coord other) {
+		x = Math.max(x, other.x);
+		y = Math.max(y, other.y);
+		z = Math.max(z, other.z);
+	}
+
+	/**
+	 * Set to min values of this and other coord
+	 * 
+	 * @param other other coord
+	 */
+	public void setMin(Coord other) {
+		x = Math.min(x, other.x);
+		y = Math.min(y, other.y);
+		z = Math.min(z, other.z);
+	}
+
+	/**
+	 * offset randomly
+	 * 
+	 * @param max max +- offset
+	 * @return offset coord
+	 */
+	public Coord random_offset(double max) {
+		Coord r = random(1);
+		Vec v = new Vec(r);
+		v.norm_ip(0.00001 + rand.nextDouble() * max);
+		return copy().add_ip(v);
+	}
+
+	/**
+	 * offset randomly
+	 * 
+	 * @param min min offset
+	 * @param max max offset
+	 * @return offset coord
+	 */
+	public Coord random_offset(double min, double max) {
+		return copy().add_ip(random(min, max));
+	}
+
+	/**
+	 * @return X as double
+	 */
+	public double x() {
+		return x;
+	}
+
+	/**
+	 * @return Y as double
+	 */
+	public double y() {
+		return y;
+	}
+
+	/**
+	 * @return Z as double
+	 */
+	public double z() {
+		return z;
+	}
+
+	/**
+	 * @return X as double
+	 */
+	public double xd() {
+		return x;
+	}
+
+	/**
+	 * @return Y as double
+	 */
+	public double yd() {
+		return y;
+	}
+
+	/**
+	 * @return Z as double
+	 */
+	public double zd() {
+		return z;
+	}
+
+	/**
+	 * @return X as double
+	 */
+	public float xf() {
+		return (float) x;
+	}
+
+	/**
+	 * @return Y as double
+	 */
+	public float yf() {
+		return (float) y;
+	}
+
+	/**
+	 * @return Z as double
+	 */
+	public float zf() {
+		return (float) z;
+	}
+
+
+	/**
+	 * @return X as double
+	 */
+	public int xi() {
+		return (int) Math.round(x);
+	}
+
+	/**
+	 * @return Y as double
+	 */
+	public int yi() {
+		return (int) Math.round(y);
+	}
+
+	/**
+	 * @return Z as double
+	 */
+	public int zi() {
+		return (int) Math.round(z);
+	}
+
+	/**
+	 * Set 3D coordinates to
+	 * 
+	 * @param x x coordinate
+	 * @param y y coordinate
+	 * @param z z coordinate
+	 * @return this
+	 */
+	public Coord setTo(Number x, Number y, Number z) {
+		this.x = x.doubleValue();
+		this.y = y.doubleValue();
+		this.z = z.doubleValue();
+		return this;
+	}
+
+	/**
+	 * Set 2D coordinates to
+	 * 
+	 * @param x x coordinate
+	 * @param y y coordinate
+	 * @return this
+	 */
+	public Coord setTo(Number x, Number y) {
+		setTo(x, y, 0);
+		return this;
+	}
+
+	/**
+	 * Set coordinates to match other coord
+	 * 
+	 * @param copied coord whose coordinates are used
+	 * @return this
+	 */
+	public Coord setTo(Coord copied) {
+		setTo(copied.x, copied.y, copied.z);
+		return this;
+	}
+
+	/**
+	 * Set X coordinate in place
+	 * 
+	 * @param x x coordinate
+	 * @return this
+	 */
+	public Coord setX_ip(Number x) {
+		this.x = x.doubleValue();
+		return this;
+	}
+
+	/**
+	 * Set Y coordinate in place
+	 * 
+	 * @param y y coordinate
+	 * @return this
+	 */
+	public Coord setY_ip(Number y) {
+		this.y = y.doubleValue();
+		return this;
+	}
+
+	/**
+	 * Set Z coordinate in place
+	 * 
+	 * @param z z coordinate
+	 * @return this
+	 */
+	public Coord setZ_ip(Number z) {
+		this.z = z.doubleValue();
+		return this;
+	}
+
+	/**
+	 * Set X coordinate in a copy
+	 * 
+	 * @param x x coordinate
+	 * @return copy with set coordinate
+	 */
+	public Coord setX(Number x) {
+		return copy().setX_ip(x);
+	}
+
+	/**
+	 * Set Y coordinate in a copy
+	 * 
+	 * @param y y coordinate
+	 * @return copy with set coordinate
+	 */
+	public Coord setY(Number y) {
+		return copy().setY_ip(y);
+	}
+
+	/**
+	 * Set Z coordinate in a copy
+	 * 
+	 * @param z z coordinate
+	 * @return copy with set coordinate
+	 */
+	public Coord setZ(Number z) {
+		return copy().setZ_ip(z);
+	}
+
+
+
+	/**
+	 * Get a copy subtracted by 3D coordinate
+	 * 
+	 * @param x x offset
+	 * @param y y offset
+	 * @param z z offset
+	 * @return the offset copy
+	 */
+	public Coord sub(Number x, Number y, Number z) {
+		return copy().sub_ip(x, y, z);
+	}
+
+	/**
+	 * Get a copy subtracted by 2D coordinate
+	 * 
+	 * @param x x offset
+	 * @param y y offset
+	 * @return the offset copy
+	 */
+	public Coord sub(Number x, Number y) {
+		return copy().sub_ip(x, y);
+	}
+
+	/**
+	 * Get a copy subtracted by vector
+	 * 
+	 * @param vec offset
+	 * @return the offset copy
+	 */
+	public Coord sub(Coord vec) {
+		return copy().sub_ip(vec);
+	}
+
+	/**
+	 * Offset by 3D coordinate in place
+	 * 
+	 * @param x x offset
+	 * @param y y offset
+	 * @param z z offset
+	 * @return this
+	 */
+	public Coord sub_ip(Number x, Number y, Number z) {
+		this.x -= x.doubleValue();
+		this.y -= y.doubleValue();
+		this.z -= z.doubleValue();
+		return this;
+	}
+
+	/**
+	 * Offset by 2D coordinate in place
+	 * 
+	 * @param x x offset
+	 * @param y y offset
+	 * @return this
+	 */
+	public Coord sub_ip(Number x, Number y) {
+		this.x -= x.doubleValue();
+		this.y -= y.doubleValue();
+		return this;
+	}
+
+	/**
+	 * Offset by vector in place
+	 * 
+	 * @param vec offset
+	 * @return this
+	 */
+	public Coord sub_ip(Coord vec) {
+		this.x -= vec.x;
+		this.y -= vec.y;
+		this.z -= vec.z;
+		return this;
+	}
+
+	/**
+	 * Get a copy offset by 3D coordinate
+	 * 
+	 * @param x x offset
+	 * @param y y offset
+	 * @param z z offset
+	 * @return the offset copy
+	 */
+	public Coord add(Number x, Number y, Number z) {
+		return copy().add_ip(x, y, z);
+	}
+
+	/**
+	 * Get a copy offset by 2D coordinate
+	 * 
+	 * @param x x offset
+	 * @param y y offset
+	 * @return the offset copy
+	 */
+	public Coord add(Number x, Number y) {
+		return copy().add_ip(x, y);
+	}
+
+	/**
+	 * Get a copy offset by vector
+	 * 
+	 * @param vec offset
+	 * @return the offset copy
+	 */
+	public Coord add(Coord vec) {
+		return copy().add_ip(vec);
+	}
+
+	/**
+	 * Offset by 3D coordinate in place
+	 * 
+	 * @param x x offset
+	 * @param y y offset
+	 * @param z z offset
+	 * @return this
+	 */
+	public Coord add_ip(Number x, Number y, Number z) {
+		this.x += x.doubleValue();
+		this.y += y.doubleValue();
+		this.z += z.doubleValue();
+		return this;
+	}
+
+	/**
+	 * Offset by 2D coordinate in place
+	 * 
+	 * @param x x offset
+	 * @param y y offset
+	 * @return this
+	 */
+	public Coord add_ip(Number x, Number y) {
+		this.x += x.doubleValue();
+		this.y += y.doubleValue();
+		return this;
+	}
+
+	/**
+	 * Offset by vector in place
+	 * 
+	 * @param vec offset
+	 * @return this
+	 */
+	public Coord add_ip(Coord vec) {
+		this.x += vec.x;
+		this.y += vec.y;
+		this.z += vec.z;
+		return this;
+	}
+
+	/**
+	 * @return copy of this vector
+	 */
+	public Coord copy() {
+		return new Coord(x, y, z);
+	}
+
+
+	/**
+	 * Get distance to other point
+	 * 
+	 * @param point other point
+	 * @return distance in units
+	 */
+	public double distTo(Coord point) {
+		return Math.sqrt((point.x - x) * (point.x - x) + (point.y - y) * (point.y - y) + (point.z - z) * (point.z - z));
+	}
+
+	/**
+	 * Create vector from this point to other point
+	 * 
+	 * @param point second point
+	 * @return vector
+	 */
+	public Vec vecTo(Coord point) {
+		return (Vec) (new Vec(point)).add(new Vec(this).neg());
+	}
+
+	/**
+	 * Get distance to other point
+	 * 
+	 * @param a point a
+	 * @param b point b
+	 * @return distance in units
+	 */
+	public static double dist(Coord a, Coord b) {
+		return a.distTo(b);
+	}
+
+	/**
+	 * Get middle of line to other point
+	 * 
+	 * @param other other point
+	 * @return middle
+	 */
+	public Coord midTo(Coord other) {
+		return add(vecTo(other).scale(0.5));
+	}
+
+	private Coord last;
+	private Vec offs;
+
+	/**
+	 * Store current value as LAST
+	 */
+	public void pushLast() {
+		if (last == null) last = new Coord();
+		if (offs == null) offs = new Vec();
+		last.setTo(this);
+	}
+
+	/**
+	 * Apply coordinates change for delta time
+	 */
+	public void update() {
+		if (last == null) last = new Coord();
+		if (offs == null) offs = new Vec();
+		offs = last.vecTo(this);
+	}
+
+	/**
+	 * Get coordinate at delta time since LAST
+	 * 
+	 * @param delta delta time 0-1
+	 * @return delta pos
+	 */
+	public Coord getDelta(double delta) {
+		if (last == null) last = new Coord();
+		if (offs == null) offs = new Vec();
+		return new Coord(this.add(offs.scale(delta)));
+	}
+
+	@Override
+	public String toString() {
+		return "[ " + x + " ; " + y + " ; " + z + " ]";
+	}
+
+	@Override
+	public boolean equals(Object obj) {
+		if (obj == null) return false;
+		if (!obj.getClass().isAssignableFrom(Vec.class)) return false;
+		Vec other = (Vec) obj;
+		return x == other.x && y == other.y && z == other.z;
+	}
+
+	@Override
+	public int hashCode() {
+		return Double.valueOf(x).hashCode() ^ Double.valueOf(y).hashCode() ^ Double.valueOf(z).hashCode();
+	}
+
+	/**
+	 * Multiply by number
+	 * 
+	 * @param d number
+	 * @return multiplied copy
+	 */
+	public Coord mul(double d) {
+		return copy().mul_ip(d);
+	}
+
+	/**
+	 * Multiply by number in place
+	 * 
+	 * @param d multiplier
+	 * @return this
+	 */
+	public Coord mul_ip(double d) {
+		x *= d;
+		y *= d;
+		z *= d;
+		return this;
+	}
+
+	/**
+	 * Multiply coords by number
+	 * 
+	 * @param xd x multiplier
+	 * @param yd y multiplier
+	 * @param zd z multiplier
+	 * @return multiplied copy
+	 */
+	public Coord mul(double xd, double yd, double zd) {
+		return copy().mul_ip(xd, yd, zd);
+	}
+
+	/**
+	 * Multiply coords by number in place
+	 * 
+	 * @param xd x multiplier
+	 * @param yd y multiplier
+	 * @param zd z multiplier
+	 * @return this
+	 */
+	public Coord mul_ip(double xd, double yd, double zd) {
+		x *= xd;
+		y *= yd;
+		z *= zd;
+		return this;
+	}
+
+	/**
+	 * Divide by number in place
+	 * 
+	 * @param d number to divide by
+	 * @return this
+	 */
+	public Coord div_ip(double d) {
+		if (d == 0) return this;
+		x /= d;
+		y /= d;
+		z /= d;
+		return this;
+	}
+
+	/**
+	 * Get copy divided by number
+	 * 
+	 * @param d number to divide by
+	 * @return divided copy
+	 */
+	public Coord div(double d) {
+		return copy().div_ip(d);
+	}
+
+	/**
+	 * Round in place
+	 * 
+	 * @return this
+	 */
+	public Coord round_ip() {
+		x = Math.round(x);
+		y = Math.round(y);
+		z = Math.round(z);
+		return this;
+	}
+
+
+	/**
+	 * Get a copy with rounded coords
+	 * 
+	 * @return rounded copy
+	 */
+	public Coord round() {
+		return copy().round_ip();
+	}
+
+	/**
+	 * Check if this rectangle in inside a rectangular zone
+	 * 
+	 * @param min min coord
+	 * @param max max coord
+	 * @return is inside
+	 */
+	public boolean isInRect(Coord min, Coord max) {
+		return (x >= min.x && x <= max.x) && (y >= min.y && y <= max.y) && (z >= min.z && z <= max.z);
+	}
+
+	/**
+	 * Check if this rectangle in inside a rectangular zone
+	 * 
+	 * @param rect checked rect.
+	 * @return is inside
+	 */
+	public boolean isInRect(Rect rect) {
+		return isInRect(rect.min, rect.max);		
+	}
+
+	/**
+	 * Get size
+	 * 
+	 * @return size
+	 */
+	public double size() {
+		return new Vec(this).size();
+	}
+}

src/com/porcupine/coord/CoordI.java

@@ -0,0 +1,159 @@
+package com.porcupine.coord;
+
+
+/**
+ * Simple integer coordinate class<br>
+ * Unlike Coord, this is suitable for using in array indices etc.
+ * 
+ * @author MightyPork
+ */
+public class CoordI {
+
+	/** X coordinate */
+	public int x = 0;
+	/** Y coordinate */
+	public int y = 0;
+
+	/**
+	 * Integer 2D Coord
+	 * 
+	 * @param x x coord
+	 * @param y y coord
+	 */
+	public CoordI(int x, int y) {
+		this.x = x;
+		this.y = y;
+	}
+
+	/**
+	 * Create CoordI as copy of other
+	 * 
+	 * @param other coord to copy
+	 */
+	public CoordI(CoordI other) {
+		setTo(other);
+	}
+
+	/**
+	 * Get copy
+	 * 
+	 * @return copy
+	 */
+	public CoordI copy() {
+		return new CoordI(x, y);
+	}
+
+	/**
+	 * Set coords to
+	 * 
+	 * @param x x coord to set
+	 * @param y y coord to set
+	 */
+	public void setTo(int x, int y) {
+		this.x = x;
+		this.y = y;
+	}
+
+	/**
+	 * Set to coords from other coord
+	 * 
+	 * @param other source coord
+	 */
+	public void setTo(CoordI other) {
+		this.x = other.x;
+		this.y = other.y;
+	}
+
+	/**
+	 * Convert to double Coord
+	 * 
+	 * @return coord with X and y from this CoordI
+	 */
+	public Coord toCoord() {
+		return new Coord(x, y);
+	}
+
+	@Override
+	public String toString() {
+		return "[ " + x + " ; " + y + " ]";
+	}
+
+	@Override
+	public boolean equals(Object obj) {
+		if (obj == null) return false;
+		if (obj instanceof CoordI) return ((CoordI) obj).x == x && ((CoordI) obj).y == y;
+		return false;
+	}
+
+	@Override
+	public int hashCode() {
+		return x ^ y;
+	}
+
+	/**
+	 * Add other coordI coordinates in place
+	 * 
+	 * @param move coordI to add
+	 * @return this
+	 */
+	public CoordI add_ip(CoordI move) {
+		x += move.x;
+		y += move.y;
+		return this;
+	}
+
+	/**
+	 * Subtract other coordI coordinates in place
+	 * 
+	 * @param move coordI to subtract
+	 * @return this
+	 */
+	public CoordI sub_ip(CoordI move) {
+		x -= move.x;
+		y -= move.y;
+		return this;
+	}
+
+	/**
+	 * Middle of this and other coordinate, rounded to CoordI - integers
+	 * 
+	 * @param other other coordI
+	 * @return middle CoordI
+	 */
+	public CoordI midTo(CoordI other) {
+		return new CoordI((x + other.x) / 2, (y + other.y) / 2);
+	}
+
+	/**
+	 * Subtract x,y in a copy
+	 * 
+	 * @param x x to subtract
+	 * @param y y to subtract
+	 * @return copy subtracted
+	 */
+	public CoordI sub(int x, int y) {
+		return copy().sub_ip(new CoordI(x, y));
+	}
+
+	/**
+	 * Subtract other coordI coordinates in a copy
+	 * 
+	 * @param other coordI to subtract
+	 * @return copy subtracted
+	 */
+	public CoordI sub(CoordI other) {
+		return copy().sub_ip(other);
+	}
+
+	/**
+	 * Add other coordI coordinates in a copy
+	 * 
+	 * @param other coordI to add
+	 * @return copy modified
+	 */
+	public CoordI add(CoordI other) {
+		return copy().add_ip(other);
+	}
+
+
+}

src/com/porcupine/coord/Rect.java

@@ -0,0 +1,639 @@
+package com.porcupine.coord;
+
+
+import com.porcupine.math.Calc;
+
+
+/**
+ * Rectangle determined by two coordinates - min and max.
+ * 
+ * @author MightyPork
+ */
+public class Rect {
+
+	/** Rect [0, 0, 1, 1] */
+	public static final Rect ONE = new Rect(0, 0, 1, 1);
+	/** Rect all zeros */
+	public static final Rect ZERO = new Rect(0, 0, 0, 0);
+
+	/** Highest coordinates xy */
+	protected Coord max = new Coord();
+	/** Lowest coordinates xy */
+	protected Coord min = new Coord();
+
+	/**
+	 * New Rect [0, 0, 0, 0]
+	 */
+	public Rect() {
+		this(0, 0, 0, 0);
+	}
+
+	/**
+	 * New rect of two coords
+	 * 
+	 * @param c1 coord 1
+	 * @param c2 coord 2
+	 */
+	public Rect(Coord c1, Coord c2) {
+		this(c1.x, c1.y, c2.x, c2.y);
+	}
+
+	/**
+	 * New Rect
+	 * 
+	 * @param x1 lower x
+	 * @param y1 lower y
+	 * @param x2 upper x
+	 * @param y2 upper y
+	 */
+	public Rect(double x1, double y1, double x2, double y2) {
+		setTo(x1, y1, x2, y2);
+	}
+
+	/**
+	 * Make rect from min coord and size
+	 * 
+	 * @param x1 min x
+	 * @param y1 min y
+	 * @param width size x
+	 * @param height size y
+	 * @return the new rect
+	 */
+	public static Rect fromSize(int x1, int y1, int width, int height) {
+		return new Rect(x1, y1, x1 + width, y1 + height);
+	}
+
+	/**
+	 * Make rect from min coord and size
+	 * 
+	 * @param min min coord
+	 * @param width size x
+	 * @param height size y
+	 * @return the new rect
+	 */
+	public static Rect fromSize(Coord min, int width, int height) {
+		return new Rect(min, min.add(width, height));
+	}
+
+	/**
+	 * New rect as a copy of other rect
+	 * 
+	 * @param r other rect
+	 */
+	public Rect(Rect r) {
+		this(r.min.x, r.min.y, r.max.x, r.max.y);
+	}
+
+	/**
+	 * Rect [0, 0, x, y]
+	 * 
+	 * @param x width
+	 * @param y height
+	 */
+	public Rect(int x, int y) {
+		this(0, 0, x, y);
+	}
+
+	/**
+	 * Rect [0, 0, size.x, size.y]
+	 * 
+	 * @param size size coord
+	 */
+	public Rect(Coord size) {
+		this(0, 0, size.x, size.y);
+	}
+
+	/**
+	 * Add X and Y to all coordinates in a copy
+	 * 
+	 * @param x x to add
+	 * @param y y to add
+	 * @return copy changed
+	 */
+	public Rect add(double x, double y) {
+		return add(new Vec(x, y));
+	}
+
+	/**
+	 * Get offset copy (add)
+	 * 
+	 * @param move offset vector
+	 * @return offset copy
+	 */
+	public Rect add(Vec move) {
+		return copy().add_ip(move);
+	}
+
+	/**
+	 * Add X and Y to all coordinates in place
+	 * 
+	 * @param x x to add
+	 * @param y y to add
+	 * @return this
+	 */
+	public Rect add_ip(double x, double y) {
+		return add_ip(new Vec(x, y));
+	}
+
+	/**
+	 * Offset in place (add)
+	 * 
+	 * @param move offset vector
+	 * @return this
+	 */
+	public Rect add_ip(Vec move) {
+		min.add_ip(move);
+		max.add_ip(move);
+		return this;
+	}
+
+	/**
+	 * Get a copy
+	 * 
+	 * @return copy
+	 */
+	public Rect copy() {
+		return new Rect(this);
+	}
+
+	/**
+	 * Divide in copy
+	 * 
+	 * @param factor divisor
+	 * @return offset copy
+	 */
+	public Rect div(double factor) {
+		return copy().div_ip(factor);
+	}
+
+	/**
+	 * Divide coord in place
+	 * 
+	 * @param factor divisor
+	 * @return this
+	 */
+	public Rect div_ip(double factor) {
+		min.div_ip(factor);
+		max.div_ip(factor);
+		return this;
+	}
+
+	/**
+	 * Get rect center
+	 * 
+	 * @return center
+	 */
+	public Coord getCenter() {
+		return min.midTo(max);
+	}
+
+	/**
+	 * Get center of the lower edge.
+	 * 
+	 * @return center
+	 */
+	public Coord getCenterDown() {
+		return new Coord((max.x + min.x) / 2, min.y);
+	}
+
+	/**
+	 * Get center of the left edge.
+	 * 
+	 * @return center
+	 */
+	public Coord getCenterLeft() {
+		return new Coord(min.x, (max.y + min.y) / 2);
+	}
+
+	/**
+	 * Get center of the right edge.
+	 * 
+	 * @return center
+	 */
+	public Coord getCenterRight() {
+		return new Coord(max.x, (max.y + min.y) / 2);
+	}
+
+	/**
+	 * Get center of the top edge.
+	 * 
+	 * @return center
+	 */
+	public Coord getCenterTop() {
+		return new Coord((max.x + min.x) / 2, max.y);
+	}
+
+	/**
+	 * Get left top
+	 * 
+	 * @return center
+	 */
+	public Coord getLeftTop() {
+		return new Coord(min.x, max.y);
+	}
+
+	/**
+	 * Get left bottom
+	 * 
+	 * @return center
+	 */
+	public Coord getLeftBottom() {
+		return new Coord(min.x, min.y);
+	}
+
+	/**
+	 * Get right top
+	 * 
+	 * @return center
+	 */
+	public Coord getRightTop() {
+		return new Coord(max.x, max.y);
+	}
+
+	/**
+	 * Get right bottom
+	 * 
+	 * @return center
+	 */
+	public Coord getRightBottom() {
+		return new Coord(max.x, min.y);
+	}
+
+	/**
+	 * @return highjest coordinates xy
+	 */
+	public Coord getMax() {
+		return max;
+	}
+
+	/**
+	 * @return lowest coordinates xy
+	 */
+	public Coord getMin() {
+		return min;
+	}
+
+	/**
+	 * Get size (width, height) as (x,y)
+	 * 
+	 * @return coord of width,height
+	 */
+	public Coord getSize() {
+		return new Coord(Math.abs(min.x - max.x), Math.abs(min.y - max.y));
+	}
+
+	/**
+	 * Check if point is inside this rectangle
+	 * 
+	 * @param point point to test
+	 * @return is inside
+	 */
+	public boolean isInside(Coord point) {
+		return Calc.inRange(point.x, min.x, max.x) && Calc.inRange(point.y, min.y, max.y);
+	}
+
+	/**
+	 * Multiply in copy
+	 * 
+	 * @param factor multiplier
+	 * @return offset copy
+	 */
+	public Rect mul(double factor) {
+		return copy().mul_ip(factor);
+	}
+
+	/**
+	 * Multiply coord in place
+	 * 
+	 * @param factor multiplier
+	 * @return this
+	 */
+	public Rect mul_ip(double factor) {
+		min.mul_ip(factor);
+		max.mul_ip(factor);
+		return this;
+	}
+
+	/**
+	 * Set to [0,0,coord.x,coord.y]
+	 * 
+	 * @param coord size coord
+	 */
+	public void setTo(Coord coord) {
+		setTo(0, 0, coord.x, coord.y);
+	}
+
+	/**
+	 * Set to coordinates
+	 * 
+	 * @param x1 lower x
+	 * @param y1 lower y
+	 * @param x2 upper x
+	 * @param y2 upper y
+	 */
+	public void setTo(double x1, double y1, double x2, double y2) {
+		min.x = Calc.min(x1, x2);
+		min.y = Calc.min(y1, y2);
+		max.x = Calc.max(x1, x2);
+		max.y = Calc.max(y1, y2);
+	}
+
+	/**
+	 * Set to other rect's coordinates
+	 * 
+	 * @param r other rect
+	 */
+	public void setTo(Rect r) {
+		min.setTo(r.min);
+		max.setTo(r.max);
+	}
+
+	/**
+	 * Subtract X and Y from all coordinates in a copy
+	 * 
+	 * @param x x to subtract
+	 * @param y y to subtract
+	 * @return copy changed
+	 */
+	public Rect sub(double x, double y) {
+		return sub(new Vec(x, y));
+	}
+
+	/**
+	 * Get offset copy (subtract)
+	 * 
+	 * @param move offset vector
+	 * @return offset copy
+	 */
+	public Rect sub(Vec move) {
+		return copy().sub_ip(move);
+	}
+
+	/**
+	 * Subtract X and Y from all coordinates in place
+	 * 
+	 * @param x x to subtract
+	 * @param y y to subtract
+	 * @return this
+	 */
+	public Rect sub_ip(double x, double y) {
+		return sub_ip(new Vec(x, y));
+	}
+
+
+	/**
+	 * Offset in place (subtract)
+	 * 
+	 * @param move offset vector
+	 * @return this
+	 */
+	public Rect sub_ip(Vec move) {
+		min.sub_ip(move);
+		max.sub_ip(move);
+		return this;
+	}
+
+	/**
+	 * Grow to sides in place
+	 * 
+	 * @param grow grow size (added to each side)
+	 * @return this
+	 */
+	public Rect grow_ip(Coord grow) {
+		min.sub_ip(grow);
+		max.add_ip(grow);
+		return this;
+	}
+
+
+	/**
+	 * Grow to sides in copy
+	 * 
+	 * @param grow grow size (added to each side)
+	 * @return grown copy
+	 */
+	public Rect grow(Coord grow) {
+		return copy().grow_ip(grow);
+	}
+
+	/**
+	 * Grow up in place
+	 * 
+	 * @param add added pixels
+	 * @return this
+	 */
+	public Rect growUp_ip(double add) {
+		max.add_ip(0, add);
+		return this;
+	}
+
+
+	/**
+	 * Grow up in copy
+	 * 
+	 * @param add added pixels
+	 * @return grown copy
+	 */
+	public Rect growUp(double add) {
+		return copy().growUp_ip(add);
+	}
+
+	/**
+	 * Grow down in place
+	 * 
+	 * @param down added pixels
+	 * @return this
+	 */
+	public Rect growDown_ip(double down) {
+		min.sub_ip(0, down);
+		return this;
+	}
+
+
+	/**
+	 * Grow down in copy
+	 * 
+	 * @param down added pixels
+	 * @return grown copy
+	 */
+	public Rect growDown(double down) {
+		return copy().growDown_ip(down);
+	}
+
+	/**
+	 * Grow to left in place
+	 * 
+	 * @param left added pixels
+	 * @return this
+	 */
+	public Rect growLeft_ip(double left) {
+		min.sub_ip(left, 0);
+		return this;
+	}
+
+
+	/**
+	 * Grow to left in copy
+	 * 
+	 * @param left added pixels
+	 * @return grown copy
+	 */
+	public Rect growLeft(double left) {
+		return copy().growLeft_ip(left);
+	}
+
+	/**
+	 * Grow to right in place
+	 * 
+	 * @param right added pixels
+	 * @return this
+	 */
+	public Rect growRight_ip(double right) {
+		max.add_ip(right, 0);
+		return this;
+	}
+
+
+	/**
+	 * Grow to right in copy
+	 * 
+	 * @param right added pixels
+	 * @return grown copy
+	 */
+	public Rect growRight(double right) {
+		return copy().growRight_ip(right);
+	}
+
+	/**
+	 * Grow to sides in place
+	 * 
+	 * @param x x to add
+	 * @param y y to add
+	 * @return this
+	 */
+	public Rect grow_ip(double x, double y) {
+		min.sub_ip(x, y);
+		max.add_ip(x, y);
+		return this;
+	}
+
+
+	/**
+	 * Grow to sides in copy
+	 * 
+	 * @param x x to add
+	 * @param y y to add
+	 * @return grown copy
+	 */
+	public Rect grow(double x, double y) {
+		return copy().grow_ip(x, y);
+	}
+
+	/**
+	 * Get copy with the same center and width=0
+	 * 
+	 * @return line
+	 */
+	public Rect getAxisV() {
+		return new Rect(getCenterDown(), getCenterTop());
+	}
+
+	/**
+	 * Get copy with the same center and height=0
+	 * 
+	 * @return line
+	 */
+	public Rect getAxisH() {
+		return new Rect(getCenterLeft(), getCenterRight());
+	}
+
+	/**
+	 * Get top edge rect
+	 * 
+	 * @return line
+	 */
+	public Rect getEdgeTop() {
+		return new Rect(getLeftTop(), getRightTop());
+	}
+
+	/**
+	 * Get bottom edge rect
+	 * 
+	 * @return line
+	 */
+	public Rect getEdgeBottom() {
+		return new Rect(getLeftBottom(), getRightBottom());
+	}
+
+	/**
+	 * Get left edge rect
+	 * 
+	 * @return line
+	 */
+	public Rect getEdgeLeft() {
+		return new Rect(getLeftBottom(), getLeftTop());
+	}
+
+	/**
+	 * Get right edge rect
+	 * 
+	 * @return line
+	 */
+	public Rect getEdgeRight() {
+		return new Rect(getRightBottom(), getRightTop());
+	}
+
+	@Override
+	public String toString() {
+		return "rect{ " + min + " - " + max + " }";
+	}
+
+	/**
+	 * @return lower x
+	 */
+	public double x1() {
+		return min.x;
+	}
+
+
+	/**
+	 * @return upper x
+	 */
+	public double x2() {
+		return max.x;
+	}
+
+	/**
+	 * @return lower y
+	 */
+	public double y1() {
+		return min.y;
+	}
+
+	/**
+	 * @return upper y
+	 */
+	public double y2() {
+		return max.y;
+	}
+
+	/**
+	 * Round coords in copy
+	 * 
+	 * @return copy, rounded
+	 */
+	public Rect round() {
+		return new Rect(min.round(), max.round());
+	}
+
+	/**
+	 * Round this in place
+	 * 
+	 * @return this
+	 */
+	public Rect round_ip() {
+		min.round_ip();
+		max.round_ip();
+		return this;
+	}
+}

src/com/porcupine/coord/Vec.java

@@ -0,0 +1,283 @@
+package com.porcupine.coord;
+
+
+/**
+ * Vector in 2D/3D space.
+ * 
+ * @author MightyPork
+ */
+public class Vec extends Coord {
+
+	/** Zero vector */
+	@SuppressWarnings("hiding")
+	public static final Vec ZERO = new Vec(0, 0, 0);
+	/** Vec [1;1;1] */
+	@SuppressWarnings("hiding")
+	public static final Vec ONE = new Vec(1, 1, 1);
+
+	/**
+	 * Create zero vector
+	 */
+	public Vec() {
+		super();
+	}
+
+	/**
+	 * Create 2D vector
+	 * 
+	 * @param x x coordinate
+	 * @param y y coordinate
+	 */
+	public Vec(Number x, Number y) {
+		super(x, y);
+	}
+
+	/**
+	 * Create 3D vector
+	 * 
+	 * @param x x coordinate
+	 * @param y y coordinate
+	 * @param z z coordinate
+	 */
+	public Vec(Number x, Number y, Number z) {
+		super(x, y, z);
+	}
+
+	/**
+	 * Create vector as a copy of another
+	 * 
+	 * @param copied copied vector
+	 */
+	public Vec(Coord copied) {
+		super(copied);
+	}
+
+
+
+	/**
+	 * Negate all coordinates (* -1)
+	 * 
+	 * @return negated coordinate
+	 */
+	public Vec neg() {
+		return copy().neg_ip();
+	}
+
+	/**
+	 * Negate all coordinates (* -1), in place
+	 * 
+	 * @return this
+	 */
+	public Vec neg_ip() {
+		scale_ip(-1);
+		return this;
+	}
+
+	/**
+	 * Multiply all coordinates by factor; scalar multiplication
+	 * 
+	 * @param factor multiplier
+	 * @return copy multiplied
+	 */
+	public Vec scale(double factor) {
+		return copy().scale_ip(factor);
+	}
+
+	/**
+	 * Multiply all coordinates by factor, in place
+	 * 
+	 * @param factor multiplier
+	 * @return this
+	 */
+	public Vec scale_ip(double factor) {
+		return (Vec) mul_ip(factor);
+	}
+
+	/**
+	 * Multiply by other vector, vector multiplication
+	 * 
+	 * @param vec other vector
+	 * @return copy multiplied
+	 */
+	public Vec cross(Vec vec) {
+		return copy().cross_ip(vec);
+	}
+
+	/**
+	 * Multiply by other vector, vector multiplication; in place
+	 * 
+	 * @param vec other vector
+	 * @return this
+	 */
+	public Vec cross_ip(Vec vec) {
+		setTo(y * vec.z - z * vec.y, z * vec.x - x * vec.z, x * vec.y - y * vec.x);
+		return this;
+	}
+
+	/**
+	 * Get dot product
+	 * 
+	 * @param vec other vector
+	 * @return dot product
+	 */
+	public double dot(Vec vec) {
+		return x * vec.x + y * vec.y + z * vec.z;
+	}
+
+	/**
+	 * Get vector size
+	 * 
+	 * @return vector size in units
+	 */
+	@Override
+	public double size() {
+		return Math.sqrt(x * x + y * y + z * z);
+	}
+
+	/**
+	 * Scale vector to given size
+	 * 
+	 * @param size size we need
+	 * @return scaled vector
+	 */
+	public Vec norm(double size) {
+		return copy().norm_ip(size);
+	}
+
+	/**
+	 * Scale vector to given size, in place
+	 * 
+	 * @param size size we need
+	 * @return scaled vector
+	 */
+	public Vec norm_ip(double size) {
+		if (size() == 0) {
+			z = -1;
+		}
+		if (size == 0) {
+			setTo(0, 0, 0);
+			return this;
+		}
+		double k = size / size();
+		scale_ip(k);
+		return this;
+	}
+
+
+	// STATIC
+
+	/**
+	 * Get vector size
+	 * 
+	 * @param vec vector to get size of
+	 * @return size in units
+	 */
+	public static double size(Vec vec) {
+		return vec.size();
+	}
+
+	/**
+	 * Get dot product of two vectors
+	 * 
+	 * @param a 1st vector
+	 * @param b 2nd vector
+	 * @return dot product
+	 */
+	public static double dot(Vec a, Vec b) {
+		return a.dot(b);
+	}
+
+	/**
+	 * Get cross product of two vectors
+	 * 
+	 * @param a 1st vector
+	 * @param b 2nd vector
+	 * @return cross product
+	 */
+	public static Vec cross(Vec a, Vec b) {
+		return a.cross(b);
+	}
+
+	/**
+	 * Scale vector
+	 * 
+	 * @param a vector
+	 * @param scale
+	 * @return scaled copy
+	 */
+	public static Vec scale(Vec a, double scale) {
+		return a.scale(scale);
+	}
+
+	@Override
+	public Vec copy() {
+		return new Vec(this);
+	}
+
+	/**
+	 * Generate random coord (gaussian)
+	 * 
+	 * @param max max distance from 0
+	 * @return new coord
+	 */
+	public static Vec random(double max) {
+		return new Vec(Coord.random(max));
+	}
+
+	/**
+	 * Generate random coord (min-max)
+	 * 
+	 * @param max max distance from 0
+	 * @return new coord
+	 */
+	public static Vec random(double min, double max) {
+		return new Vec(Coord.random(min, max));
+	}
+
+	/**
+	 * offset randomly in place
+	 * 
+	 * @param max max +- offset
+	 * @return this
+	 */
+	@Override
+	public Vec random_offset_ip(double max) {
+		return (Vec) super.random_offset_ip(max);
+	}
+
+	/**
+	 * offset randomly in place
+	 * 
+	 * @param min min offset
+	 * @param max max offset
+	 * @return this
+	 */
+	@Override
+	public Vec random_offset_ip(double min, double max) {
+		return (Vec) super.random_offset_ip(min, max);
+	}
+
+	/**
+	 * offset randomly
+	 * 
+	 * @param max max +- offset
+	 * @return offset coord
+	 */
+	@Override
+	public Vec random_offset(double max) {
+		return (Vec) super.random_offset(max);
+	}
+
+	/**
+	 * offset randomly
+	 * 
+	 * @param min min offset
+	 * @param max max offset
+	 * @return offset coord
+	 */
+	@Override
+	public Vec random_offset(double min, double max) {
+		return (Vec) super.random_offset(min, max);
+	}
+
+}

src/com/porcupine/ion/AbstractIonList.java

@@ -0,0 +1,64 @@
+package com.porcupine.ion;
+
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.ArrayList;
+
+
+/**
+ * Ionizable Arraylist
+ * 
+ * @author MightyPork
+ * @param <T>
+ */
+public abstract class AbstractIonList<T> extends ArrayList<T> implements Ionizable {
+
+	@Override
+	public void ionRead(InputStream in) throws IOException {
+		while (true) {
+			byte b = StreamUtils.readByte(in);
+
+			if (b == IonMarks.ENTRY) {
+				T value = (T) Ion.readObject(in);
+				add(value);
+			} else if (b == IonMarks.END) {
+				break;
+			} else {
+				throw new RuntimeException("Unexpected mark in AbstractIonList: " + Integer.toHexString(b));
+			}
+		}
+		ionReadCustomData(in);
+	}
+
+	@Override
+	public void ionWrite(OutputStream out) throws IOException {
+		for (T entry : this) {
+			if (entry instanceof IonizableOptional && !((IonizableOptional) entry).ionShouldSave()) continue;
+			StreamUtils.writeByte(out, IonMarks.ENTRY);
+			Ion.writeObject(out, entry);
+		}
+		StreamUtils.writeByte(out, IonMarks.END);
+		ionWriteCustomData(out);
+	}
+
+	/**
+	 * Read custom data of this AbstractIonList implementation
+	 * 
+	 * @param in input stream
+	 */
+	public void ionReadCustomData(InputStream in) {}
+
+	/**
+	 * Write custom data of this AbstractIonList implementation
+	 * 
+	 * @param out output stream
+	 */
+	public void ionWriteCustomData(OutputStream out) {}
+
+
+	@Override
+	public abstract byte ionMark();
+
+}

src/com/porcupine/ion/AbstractIonMap.java

@@ -0,0 +1,75 @@
+package com.porcupine.ion;
+
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.LinkedHashMap;
+
+
+/**
+ * Ionizable HashMap
+ * 
+ * @author MightyPork
+ * @param <V>
+ */
+public abstract class AbstractIonMap<V> extends LinkedHashMap<String, V> implements Ionizable {
+
+	@Override
+	public V get(Object key) {
+		return super.get(key);
+	}
+
+	@Override
+	public V put(String key, V value) {
+		return super.put(key, value);
+	}
+
+	@Override
+	public void ionRead(InputStream in) throws IOException {
+		while (true) {
+			byte b = StreamUtils.readByte(in);
+			if (b == IonMarks.ENTRY) {
+				String key = StreamUtils.readStringBytes(in);
+				V value = (V) Ion.readObject(in);
+				put(key, value);
+			} else if (b == IonMarks.END) {
+				break;
+			} else {
+				throw new RuntimeException("Unexpected mark in IonMap: " + Integer.toHexString(b));
+			}
+		}
+		ionReadCustomData(in);
+	}
+
+	@Override
+	public void ionWrite(OutputStream out) throws IOException {
+		for (java.util.Map.Entry<String, V> entry : entrySet()) {
+			StreamUtils.writeByte(out, IonMarks.ENTRY);
+			StreamUtils.writeStringBytes(out, entry.getKey());
+			Ion.writeObject(out, entry.getValue());
+		}
+		StreamUtils.writeByte(out, IonMarks.END);
+		ionWriteCustomData(out);
+	}
+
+	/**
+	 * Read custom data of this AbstractIonMap implementation
+	 * 
+	 * @param in input stream
+	 */
+	public void ionReadCustomData(InputStream in) {}
+
+	/**
+	 * Write custom data of this AbstractIonMap implementation
+	 * 
+	 * @param out output stream
+	 */
+	public void ionWriteCustomData(OutputStream out) {}
+
+	@Override
+	public byte ionMark() {
+		return IonMarks.MAP;
+	}
+
+}

src/com/porcupine/ion/Ion.java

@@ -0,0 +1,261 @@
+package com.porcupine.ion;
+
+
+import java.io.*;
+import java.util.HashMap;
+import java.util.Map;
+
+import com.porcupine.math.Calc;
+
+
+/**
+ * Universal data storage system
+ * 
+ * @author MightyPork
+ */
+public class Ion {
+
+	/** Ionizables<Mark, Class> */
+	private static Map<Byte, Class<?>> customIonizables = new HashMap<Byte, Class<?>>();
+
+	// register default ionizables
+	static {
+		registerIonizable(IonMarks.MAP, IonMap.class);
+		registerIonizable(IonMarks.LIST, IonList.class);
+	}
+
+	/**
+	 * Register new Ionizable for direct reconstructing.
+	 * 
+	 * @param mark byte mark to be used, see {@link IonMarks} for reference.
+	 * @param objClass class of the registered Ionizable
+	 */
+	public static void registerIonizable(byte mark, Class<?> objClass) {
+		if (customIonizables.containsKey(mark)) {
+			throw new RuntimeException("IonMark " + mark + " is already used @ " + objClass.getSimpleName());
+		}
+		customIonizables.put(mark, objClass);
+	}
+
+
+
+	/**
+	 * Load Ion object from file.
+	 * 
+	 * @param file file path
+	 * @return the loaded object
+	 */
+	public static Object fromFile(String file) {
+		return fromFile(new File(file));
+	}
+
+
+	/**
+	 * Load Ion object from file.
+	 * 
+	 * @param file file
+	 * @return the loaded object
+	 */
+	public static Object fromFile(File file) {
+		try {
+			InputStream in = new FileInputStream(file);
+
+			Object obj = fromStream(in);
+
+			in.close();
+			return obj;
+		} catch (FileNotFoundException e) {
+			System.err.println("Could not find ION file " + file);
+			return null;
+		} catch (Exception e) {
+			throw new RuntimeException(e);
+		}
+	}
+
+	/**
+	 * Load Ion object from stream.
+	 * 
+	 * @param in input stream
+	 * @return the loaded object
+	 */
+	public static Object fromStream(InputStream in) {
+		try {
+			return readObject(in);
+		} catch (Exception e) {
+			throw new RuntimeException(e);
+		}
+	}
+
+	/**
+	 * Store Ion object to file.
+	 * 
+	 * @param path file path
+	 * @param obj object to store
+	 */
+	public static void toFile(String path, Object obj) {
+		toFile(new File(path), obj);
+	}
+
+	/**
+	 * Store Ion object to file.
+	 * 
+	 * @param path file path
+	 * @param obj object to store
+	 */
+	public static void toFile(File path, Object obj) {
+		try {
+			String f = path.toString();
+			File dir = new File(f.substring(0, f.lastIndexOf(File.separator)));
+
+			dir.mkdirs();
+
+			OutputStream out = new FileOutputStream(path);
+
+			toStream(out, obj);
+
+			out.flush();
+			out.close();
+		} catch (Exception e) {
+			throw new RuntimeException(e);
+		}
+	}
+
+	/**
+	 * Store Ion object to output stream.
+	 * 
+	 * @param out output stream *
+	 * @param obj object to store
+	 */
+	public static void toStream(OutputStream out, Object obj) {
+		try {
+			writeObject(out, obj);
+		} catch (Exception e) {
+			throw new RuntimeException(e);
+		}
+	}
+
+
+	/**
+	 * Read single ionizable or primitive object from input stream
+	 * 
+	 * @param in input stream
+	 * @return the loaded object
+	 */
+	public static Object readObject(InputStream in) {
+		try {
+			int bi = in.read();
+			if (bi == -1) throw new RuntimeException("Unexpected end of stream.");
+			byte b = (byte) bi;
+			if (customIonizables.containsKey(b)) {
+				Ionizable ion = ((Ionizable) customIonizables.get(b).newInstance());
+				ion.ionRead(in);
+				return ion;
+			}
+
+			switch (b) {
+				case IonMarks.BOOLEAN:
+					return StreamUtils.readBoolean(in);
+				case IonMarks.BYTE:
+					return StreamUtils.readByte(in);
+				case IonMarks.CHAR:
+					return StreamUtils.readChar(in);
+				case IonMarks.SHORT:
+					return StreamUtils.readShort(in);
+				case IonMarks.INT:
+					return StreamUtils.readInt(in);
+				case IonMarks.LONG:
+					return StreamUtils.readLong(in);
+				case IonMarks.FLOAT:
+					return StreamUtils.readFloat(in);
+				case IonMarks.DOUBLE:
+					return StreamUtils.readDouble(in);
+				case IonMarks.STRING:
+					String s = StreamUtils.readString(in);
+					return s;
+				default:
+					throw new RuntimeException("Invalid Ion mark " + Integer.toHexString(bi));
+			}
+
+		} catch (Throwable t) {
+			throw new RuntimeException(t);
+		}
+	}
+
+
+	/**
+	 * Write single ionizable or primitive object to output stream
+	 * 
+	 * @param out output stream
+	 * @param obj stored object
+	 */
+	public static void writeObject(OutputStream out, Object obj) {
+		try {
+			if (obj instanceof Ionizable) {
+				out.write(((Ionizable) obj).ionMark());
+				((Ionizable) obj).ionWrite(out);
+				return;
+			}
+
+			if (obj instanceof Boolean) {
+				out.write(IonMarks.BOOLEAN);
+				StreamUtils.writeBoolean(out, (Boolean) obj);
+				return;
+			}
+
+			if (obj instanceof Byte) {
+				out.write(IonMarks.BYTE);
+				StreamUtils.writeByte(out, (Byte) obj);
+				return;
+			}
+
+			if (obj instanceof Character) {
+				out.write(IonMarks.CHAR);
+				StreamUtils.writeChar(out, (Character) obj);
+				return;
+			}
+
+			if (obj instanceof Short) {
+				out.write(IonMarks.SHORT);
+				StreamUtils.writeShort(out, (Short) obj);
+				return;
+			}
+
+			if (obj instanceof Integer) {
+				out.write(IonMarks.INT);
+				StreamUtils.writeInt(out, (Integer) obj);
+				return;
+			}
+
+			if (obj instanceof Long) {
+				out.write(IonMarks.LONG);
+				StreamUtils.writeLong(out, (Long) obj);
+				return;
+			}
+
+			if (obj instanceof Float) {
+				out.write(IonMarks.FLOAT);
+				StreamUtils.writeFloat(out, (Float) obj);
+				return;
+			}
+
+			if (obj instanceof Double) {
+				out.write(IonMarks.DOUBLE);
+				StreamUtils.writeDouble(out, (Double) obj);
+				return;
+			}
+
+			if (obj instanceof String) {
+				out.write(IonMarks.STRING);
+				StreamUtils.writeString(out, (String) obj);
+				return;
+			}
+
+			throw new RuntimeException(Calc.className(obj) + " can't be stored to Ion storage.");
+
+		} catch (Throwable t) {
+			throw new RuntimeException(t);
+		}
+	}
+
+
+}

src/com/porcupine/ion/IonList.java

@@ -0,0 +1,144 @@
+package com.porcupine.ion;
+
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.ArrayList;
+
+
+/**
+ * Ionizable Arraylist
+ * 
+ * @author MightyPork
+ */
+@SuppressWarnings("javadoc")
+public class IonList extends ArrayList<Object> implements Ionizable {
+
+	public boolean getBoolean(int index) {
+		return (Boolean) get(index);
+	}
+
+	public boolean getBool(int index) {
+		return (Boolean) get(index);
+	}
+
+	public byte getByte(int index) {
+		return (Byte) get(index);
+	}
+
+	public char getChar(int index) {
+		return (Character) get(index);
+	}
+
+	public char getCharacter(int index) {
+		return (Character) get(index);
+	}
+
+	public short getShort(int index) {
+		return (Short) get(index);
+	}
+
+	public int getInteger(int index) {
+		return (Integer) get(index);
+	}
+
+	public int getInt(int index) {
+		return (Integer) get(index);
+	}
+
+	public long getLong(int index) {
+		return (Long) get(index);
+	}
+
+	public float getFloat(int index) {
+		return (Float) get(index);
+	}
+
+	public double getDouble(int index) {
+		return (Double) get(index);
+	}
+
+	public String getString(int index) {
+		return (String) get(index);
+	}
+
+	@Override
+	public Object get(int index) {
+		return super.get(index);
+	}
+
+	public void addBoolean(boolean num) {
+		add(num);
+	}
+
+	public void addBool(boolean num) {
+		add(num);
+	}
+
+	public void addByte(int num) {
+		add((byte) num);
+	}
+
+	public void addChar(char num) {
+		add(num);
+	}
+
+	public void addShort(int num) {
+		add((short) num);
+	}
+
+	public void addInteger(int num) {
+		add(num);
+	}
+
+	public void addInt(int num) {
+		add(num);
+	}
+
+	public void addLong(long num) {
+		add(num);
+	}
+
+	public void addFloat(double num) {
+		add((float) num);
+	}
+
+	public void addDouble(double num) {
+		add(num);
+	}
+
+	public void addString(String num) {
+		add(num);
+	}
+
+	@Override
+	public void ionRead(InputStream in) throws IOException {
+		while (true) {
+			byte b = StreamUtils.readByte(in);
+			if (b == IonMarks.ENTRY) {
+				Object value = Ion.readObject(in);
+				add(value);
+			} else if (b == IonMarks.END) {
+				break;
+			} else {
+				throw new RuntimeException("Unexpected mark in IonList: " + Integer.toHexString(b));
+			}
+		}
+	}
+
+	@Override
+	public void ionWrite(OutputStream out) throws IOException {
+		for (Object entry : this) {
+			StreamUtils.writeByte(out, IonMarks.ENTRY);
+			Ion.writeObject(out, entry);
+		}
+		StreamUtils.writeByte(out, IonMarks.END);
+	}
+
+	@Override
+	public byte ionMark() {
+		return IonMarks.LIST;
+	}
+
+}

src/com/porcupine/ion/IonMap.java

@@ -0,0 +1,143 @@
+package com.porcupine.ion;
+
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.LinkedHashMap;
+import java.util.Map.Entry;
+
+
+/**
+ * Ionizable HashMap
+ * 
+ * @author MightyPork
+ */
+@SuppressWarnings("javadoc")
+public class IonMap extends LinkedHashMap<String, Object> implements Ionizable {
+
+	public boolean getBoolean(String key) {
+		return (Boolean) get(key);
+	}
+
+	public boolean getBool(String key) {
+		return (Boolean) get(key);
+	}
+
+	public byte getByte(String key) {
+		return (Byte) get(key);
+	}
+
+	public char getChar(String key) {
+		return (Character) get(key);
+	}
+
+	public short getShort(String key) {
+		return (Short) get(key);
+	}
+
+	public int getInt(String key) {
+		return (Integer) get(key);
+	}
+
+	public long getLong(String key) {
+		return (Long) get(key);
+	}
+
+	public float getFloat(String key) {
+		return (Float) get(key);
+	}
+
+	public double getDouble(String key) {
+		return (Double) get(key);
+	}
+
+	public String getString(String key) {
+		return (String) get(key);
+	}
+
+	@Override
+	public Object get(Object arg0) {
+		return super.get(arg0);
+	}
+
+	public void putBoolean(String key, boolean num) {
+		put(key, num);
+	}
+
+	public void putBool(String key, boolean num) {
+		put(key, num);
+	}
+
+	public void putByte(String key, int num) {
+		put(key, (byte) num);
+	}
+
+	public void putChar(String key, char num) {
+		put(key, num);
+	}
+
+	public void putCharacter(String key, char num) {
+		put(key, num);
+	}
+
+	public void putShort(String key, int num) {
+		put(key, num);
+	}
+
+	public void putInt(String key, int num) {
+		put(key, num);
+	}
+
+	public void putInteger(String key, int num) {
+		put(key, num);
+	}
+
+	public void putLong(String key, long num) {
+		put(key, num);
+	}
+
+	public void putFloat(String key, double num) {
+		put(key, (float) num);
+	}
+
+	public void putDouble(String key, double num) {
+		put(key, num);
+	}
+
+	public void putString(String key, String num) {
+		put(key, num);
+	}
+
+	@Override
+	public void ionRead(InputStream in) throws IOException {
+		while (true) {
+			byte b = StreamUtils.readByte(in);
+			if (b == IonMarks.ENTRY) {
+				String key = StreamUtils.readStringBytes(in);
+				Object value = Ion.readObject(in);
+				put(key, value);
+			} else if (b == IonMarks.END) {
+				break;
+			} else {
+				throw new RuntimeException("Unexpected mark in IonMap: " + Integer.toHexString(b));
+			}
+		}
+	}
+
+	@Override
+	public void ionWrite(OutputStream out) throws IOException {
+		for (Entry<String, Object> entry : entrySet()) {
+			StreamUtils.writeByte(out, IonMarks.ENTRY);
+			StreamUtils.writeStringBytes(out, entry.getKey());
+			Ion.writeObject(out, entry.getValue());
+		}
+		StreamUtils.writeByte(out, IonMarks.END);
+	}
+
+	@Override
+	public byte ionMark() {
+		return IonMarks.MAP;
+	}
+
+}

src/com/porcupine/ion/IonMarks.java

@@ -0,0 +1,57 @@
+package com.porcupine.ion;
+
+
+/**
+ * Byte marks used to structure data in Ion files.
+ * 
+ * @author MightyPork
+ */
+public class IonMarks {
+
+	/** Null value */
+	public static final byte NULL = 0;
+
+	/** Boolean value */
+	public static final byte BOOLEAN = 1;
+
+	/** Byte value */
+	public static final byte BYTE = 2;
+
+	/** Character value */
+	public static final byte CHAR = 3;
+
+	/** Short value */
+	public static final byte SHORT = 4;
+
+	/** Integer value */
+	public static final byte INT = 5;
+
+	/** Long value */
+	public static final byte LONG = 6;
+
+	/** Float value */
+	public static final byte FLOAT = 7;
+
+	/** Double value */
+	public static final byte DOUBLE = 8;
+
+	/** String value */
+	public static final byte STRING = 9;
+
+	/** List value (begin) - contains entries, ends with END */
+	public static final byte LIST = 10;
+
+	/** Map value (begin) - contains entries, ends with END */
+	public static final byte MAP = 11;
+
+	/**
+	 * List / Map entry<br>
+	 * In list directly followed by entry value. In map followed by (string) key
+	 * and the entry value.
+	 */
+	public static final byte ENTRY = 12;
+
+	/** End of List / Map */
+	public static final byte END = 13;
+
+}

src/com/porcupine/ion/Ionizable.java

@@ -0,0 +1,41 @@
+package com.porcupine.ion;
+
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+
+/**
+ * Object that can be saved to and loaded from Ion file.<br>
+ * All classes implementing Ionizable must be registered to {@link Ion} using
+ * Ion.registerIonizable(obj.class).
+ * 
+ * @author MightyPork
+ */
+public interface Ionizable {
+	/**
+	 * Load data from the input stream. Mark has already been read, begin
+	 * reading right after it.
+	 * 
+	 * @param in input stream
+	 * @throws IOException at IO error
+	 */
+	public void ionRead(InputStream in) throws IOException;
+
+	/**
+	 * Store data to output stream. mark has already been written, begin right
+	 * after it.
+	 * 
+	 * @param out Output stream
+	 * @throws IOException at IO error
+	 */
+	public void ionWrite(OutputStream out) throws IOException;
+
+	/**
+	 * Get Ion mark byte.
+	 * 
+	 * @return Ion mark byte.
+	 */
+	public byte ionMark();
+}

src/com/porcupine/ion/IonizableOptional.java

@@ -0,0 +1,16 @@
+package com.porcupine.ion;
+
+
+/**
+ * Optional ionizable
+ * 
+ * @author MightyPork
+ */
+public interface IonizableOptional extends Ionizable {
+	/**
+	 * Get if this ionizable should be saved to a list
+	 * 
+	 * @return should save
+	 */
+	public boolean ionShouldSave();
+}

src/com/porcupine/ion/StreamUtils.java

@@ -0,0 +1,208 @@
+package com.porcupine.ion;
+
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.ByteBuffer;
+
+
+/**
+ * Utilities to store and load objects to streams.
+ * 
+ * @author MightyPork
+ */
+
+@SuppressWarnings("javadoc")
+public class StreamUtils {
+
+	private static ByteBuffer bi = ByteBuffer.allocate(Integer.SIZE / 8);
+	private static ByteBuffer bd = ByteBuffer.allocate(Double.SIZE / 8);
+	private static ByteBuffer bf = ByteBuffer.allocate(Float.SIZE / 8);
+	private static ByteBuffer bc = ByteBuffer.allocate(Character.SIZE / 8);
+	private static ByteBuffer bl = ByteBuffer.allocate(Long.SIZE / 8);
+	private static ByteBuffer bs = ByteBuffer.allocate(Short.SIZE / 8);
+
+	private static byte[] ai = new byte[Integer.SIZE / 8];
+	private static byte[] ad = new byte[Double.SIZE / 8];
+	private static byte[] af = new byte[Float.SIZE / 8];
+	private static byte[] ac = new byte[Character.SIZE / 8];
+	private static byte[] al = new byte[Long.SIZE / 8];
+	private static byte[] as = new byte[Short.SIZE / 8];
+
+	// CONVERSIONS
+
+	private static byte[] convBool(boolean bool) {
+		return new byte[] { (byte) (bool ? 1 : 0) };
+	}
+
+	private static byte[] convByte(byte num) {
+		return new byte[] { num };
+	}
+
+	private static byte[] convChar(char num) {
+		bc.clear();
+		bc.putChar(num);
+		return bc.array();
+	}
+
+	private static byte[] convShort(short num) {
+		bs.clear();
+		bs.putShort(num);
+		return bs.array();
+	}
+
+	private static byte[] convInt(int num) {
+		bi.clear();
+		bi.putInt(num);
+		return bi.array();
+	}
+
+	private static byte[] convLong(long num) {
+		bl.clear();
+		bl.putLong(num);
+		return bl.array();
+	}
+
+	private static byte[] convFloat(float num) {
+		bf.clear();
+		bf.putFloat(num);
+		return bf.array();
+	}
+
+	private static byte[] convDouble(double num) {
+		bd.clear();
+		bd.putDouble(num);
+		return bd.array();
+	}
+
+	private static byte[] convString(String str) {
+		char[] chars = str.toCharArray();
+
+		ByteBuffer bstr = ByteBuffer.allocate((Character.SIZE / 8) * chars.length + (Character.SIZE / 8));
+		for (char c : chars) {
+			bstr.putChar(c);
+		}
+
+		bstr.putChar((char) 0);
+
+		return bstr.array();
+	}
+
+	private static byte[] convString_b(String str) {
+		char[] chars = str.toCharArray();
+		ByteBuffer bstr = ByteBuffer.allocate((Byte.SIZE / 8) * chars.length + 1);
+		for (char c : chars) {
+			bstr.put((byte) c);
+		}
+		bstr.put((byte) 0);
+
+		return bstr.array();
+	}
+
+	public static void writeBoolean(OutputStream out, boolean num) throws IOException {
+		out.write(convBool(num));
+	}
+
+	public static void writeByte(OutputStream out, byte num) throws IOException {
+		out.write(convByte(num));
+	}
+
+	public static void writeChar(OutputStream out, char num) throws IOException {
+		out.write(convChar(num));
+	}
+
+	public static void writeShort(OutputStream out, short num) throws IOException {
+		out.write(convShort(num));
+	}
+
+	public static void writeInt(OutputStream out, int num) throws IOException {
+		out.write(convInt(num));
+	}
+
+	public static void writeLong(OutputStream out, long num) throws IOException {
+		out.write(convLong(num));
+	}
+
+	public static void writeFloat(OutputStream out, float num) throws IOException {
+		out.write(convFloat(num));
+	}
+
+	public static void writeDouble(OutputStream out, double num) throws IOException {
+		out.write(convDouble(num));
+	}
+
+	public static void writeString(OutputStream out, String str) throws IOException {
+		out.write(convString(str));
+	}
+
+	public static void writeStringBytes(OutputStream out, String str) throws IOException {
+		out.write(convString_b(str));
+	}
+
+
+	// READING
+
+	public static boolean readBoolean(InputStream in) throws IOException {
+		return in.read() > 0;
+	}
+
+	public static byte readByte(InputStream in) throws IOException {
+		return (byte) in.read();
+	}
+
+	public static char readChar(InputStream in) throws IOException {
+		in.read(ac, 0, ac.length);
+		ByteBuffer buf = ByteBuffer.wrap(ac);
+		return buf.getChar();
+	}
+
+	public static short readShort(InputStream in) throws IOException {
+		in.read(as, 0, as.length);
+		ByteBuffer buf = ByteBuffer.wrap(as);
+		return buf.getShort();
+	}
+
+	public static long readLong(InputStream in) throws IOException {
+		in.read(al, 0, al.length);
+		ByteBuffer buf = ByteBuffer.wrap(al);
+		return buf.getLong();
+	}
+
+	public static int readInt(InputStream in) throws IOException {
+		in.read(ai, 0, ai.length);
+		ByteBuffer buf = ByteBuffer.wrap(ai);
+		return buf.getInt();
+	}
+
+	public static float readFloat(InputStream in) throws IOException {
+		in.read(af, 0, af.length);
+		ByteBuffer buf = ByteBuffer.wrap(af);
+		return buf.getFloat();
+	}
+
+	public static double readDouble(InputStream in) throws IOException {
+		in.read(ad, 0, ad.length);
+		ByteBuffer buf = ByteBuffer.wrap(ad);
+		return buf.getDouble();
+	}
+
+	public static String readString(InputStream in) throws IOException {
+		String s = "";
+		char c;
+		while ((c = readChar(in)) > 0) {
+			s += c;
+		}
+		return s;
+	}
+
+	public static String readStringBytes(InputStream in) throws IOException {
+		String s = "";
+		byte b;
+		while ((b = readByte(in)) > 0) {
+			s += (char) b;
+		}
+		return s;
+	}
+
+}

src/com/porcupine/math/Calc.java

@@ -0,0 +1,804 @@
+package com.porcupine.math;
+
+
+import java.nio.FloatBuffer;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Random;
+
+import org.lwjgl.BufferUtils;
+
+import com.porcupine.coord.Coord;
+import com.porcupine.coord.Vec;
+
+
+/**
+ * Math helper
+ * 
+ * @author MightyPork
+ */
+public class Calc {
+
+	/** Square root of two */
+	public static final double SQ2 = 1.41421356237;
+
+	/**
+	 * Get distance from 2D line to 2D point [X,Y]
+	 * 
+	 * @param lineDirVec line directional vector
+	 * @param linePoint point of line
+	 * @param point point coordinate
+	 * @return distance
+	 */
+	public static double linePointDist(Vec lineDirVec, Coord linePoint, Coord point) {
+		// line point L[lx,ly]
+		double lx = linePoint.x;
+		double ly = linePoint.y;
+
+		// line equation ax+by+c=0
+		double a = -lineDirVec.y;
+		double b = lineDirVec.x;
+		double c = -a * lx - b * ly;
+
+		// checked point P[x,y]
+		double x = point.x;
+		double y = point.y;
+
+		// distance
+		return Math.abs(a * x + b * y + c) / Math.sqrt(a * a + b * b);
+	}
+
+	/**
+	 * Get distance from 2D line to 2D point [X,Z]
+	 * 
+	 * @param lineDirVec line directional vector
+	 * @param linePoint point of line
+	 * @param point point coordinate
+	 * @return distance
+	 */
+	public static double linePointDistXZ(Vec lineDirVec, Coord linePoint, Coord point) {
+		return linePointDist(new Vec(lineDirVec.x, lineDirVec.z), new Coord(linePoint.x, linePoint.z), new Coord(point.x, point.z));
+	}
+
+	/**
+	 * Get longest side of a right-angled triangle
+	 * 
+	 * @param a side a (opposite)
+	 * @param b side b (adjacent)
+	 * @return longest side (hypotenuse)
+	 */
+	public static double pythC(double a, double b) {
+		return Math.sqrt(square(a) + square(b));
+	}
+
+	/**
+	 * Get adjacent side of a right-angled triangle
+	 * 
+	 * @param a side a (opposite)
+	 * @param c side c (hypotenuse)
+	 * @return side b (adjacent)
+	 */
+	public static double pythB(double a, double c) {
+		return Math.sqrt(square(c) - square(a));
+	}
+
+	/**
+	 * Get opposite side of a right-angled triangle
+	 * 
+	 * @param b side b (adjacent)
+	 * @param c side c (hypotenuse)
+	 * @return side a (opposite)
+	 */
+	public static double pythA(double b, double c) {
+		return Math.sqrt(square(c) - square(b));
+	}
+
+	private static class Angles {
+
+		public static double delta(double alpha, double beta, double a360) {
+
+			while (Math.abs(alpha - beta) > a360 / 2D) {
+				alpha = norm(alpha + a360 / 2D, a360);
+				beta = norm(beta + a360 / 2D, a360);
+			}
+
+			return beta - alpha;
+		}
+
+		public static double norm(double angle, double a360) {
+			while (angle < 0)
+				angle += a360;
+			while (angle > a360)
+				angle -= a360;
+			return angle;
+		}
+	}
+
+	/**
+	 * Calc subclass with buffer utils.
+	 * 
+	 * @author MightyPork
+	 */
+	public static class Buffers {
+
+		/**
+		 * Create java.nio.FloatBuffer of given floats, and flip it.
+		 * 
+		 * @param obj floats or float array
+		 * @return float buffer
+		 */
+		public static FloatBuffer mkFillBuff(float... obj) {
+			return (FloatBuffer) BufferUtils.createFloatBuffer(obj.length).put(obj).flip();
+		}
+
+		/**
+		 * Fill java.nio.FloatBuffer with floats or float array
+		 * 
+		 * @param buff
+		 * @param obj
+		 */
+		public static void fill(FloatBuffer buff, float... obj) {
+			buff.put(obj);
+			buff.flip();
+		}
+
+		/**
+		 * Create new java.nio.FloatBuffer of given length
+		 * 
+		 * @param count elements
+		 * @return the new java.nio.FloatBuffer
+		 */
+		public static FloatBuffer alloc(int count) {
+			return BufferUtils.createFloatBuffer(count);
+		}
+
+	}
+
+	/**
+	 * Angle calculations for degrees.
+	 * 
+	 * @author MightyPork
+	 */
+	public static class Deg {
+		/** 180° in degrees */
+		public static final double a180 = 180;
+		/** 270° in degrees */
+		public static final double a270 = 270;
+		/** 360° in degrees */
+		public static final double a360 = 360;
+		/** 45° in degrees */
+		public static final double a45 = 45;
+		/** 90° in degrees */
+		public static final double a90 = 90;
+
+		/**
+		 * Subtract two angles alpha - beta
+		 * 
+		 * @param alpha first angle
+		 * @param beta second angle
+		 * @return (alpha - beta) in degrees
+		 */
+		public static double delta(double alpha, double beta) {
+			return Angles.delta(alpha, beta, a360);
+		}
+
+		/**
+		 * Difference of two angles (absolute value of delta)
+		 * 
+		 * @param alpha first angle
+		 * @param beta second angle
+		 * @return difference in radians
+		 */
+		public static double diff(double alpha, double beta) {
+			return Math.abs(Angles.delta(alpha, beta, a360));
+		}
+
+		/**
+		 * Cosinus in degrees
+		 * 
+		 * @param deg angle in degrees
+		 * @return cosinus
+		 */
+		public static double cos(double deg) {
+			return Math.cos(toRad(deg));
+		}
+
+		/**
+		 * Sinus in degrees
+		 * 
+		 * @param deg angle in degrees
+		 * @return sinus
+		 */
+		public static double sin(double deg) {
+			return Math.sin(toRad(deg));
+		}
+
+		/**
+		 * Tangents in degrees
+		 * 
+		 * @param deg angle in degrees
+		 * @return tangents
+		 */
+		public static double tan(double deg) {
+			return Math.tan(toRad(deg));
+		}
+
+		/**
+		 * Angle normalized to 0-360 range
+		 * 
+		 * @param angle angle to normalize
+		 * @return normalized angle
+		 */
+		public static double norm(double angle) {
+			return Angles.norm(angle, a360);
+		}
+
+		/**
+		 * Convert to radians
+		 * 
+		 * @param deg degrees
+		 * @return radians
+		 */
+		public static double toRad(double deg) {
+			return Math.toRadians(deg);
+		}
+
+		/**
+		 * Round angle to 0,45,90,135...
+		 * 
+		 * @param deg angle in deg. to round
+		 * @param x rounding increment (45 - round to 0,45,90...)
+		 * @return rounded
+		 */
+		public static int roundX(double deg, double x) {
+			double half = x / 2d;
+			deg += half;
+			deg = norm(deg);
+			int times = (int) Math.floor(deg / x);
+			double a = times * x;
+			if (a == 360) a = 0;
+			return (int) Math.round(a);
+		}
+
+		/**
+		 * Round angle to 0,45,90,135...
+		 * 
+		 * @param deg angle in deg. to round
+		 * @return rounded
+		 */
+		public static int round45(double deg) {
+			return roundX(deg, 45);
+		}
+
+		/**
+		 * Round angle to 0,90,180,270
+		 * 
+		 * @param deg angle in deg. to round
+		 * @return rounded
+		 */
+		public static int round90(double deg) {
+			return roundX(deg, 90);
+		}
+
+		/**
+		 * Round angle to 0,15,30,45,60,75,90...
+		 * 
+		 * @param deg angle in deg to round
+		 * @return rounded
+		 */
+		public static int round15(double deg) {
+			return roundX(deg, 15);
+		}
+	}
+
+	/**
+	 * Angle calculations for radians.
+	 * 
+	 * @author MightyPork
+	 */
+	public static class Rad {
+		/** 180° in radians */
+		public static final double a180 = Math.PI;
+		/** 270° in radians */
+		public static final double a270 = Math.PI * 1.5D;
+		/** 360° in radians */
+		public static final double a360 = Math.PI * 2D;
+		/** 45° in radians */
+		public static final double a45 = Math.PI / 4D;
+		/** 90° in radians */
+		public static final double a90 = Math.PI / 2D;
+
+		/**
+		 * Subtract two angles alpha - beta
+		 * 
+		 * @param alpha first angle
+		 * @param beta second angle
+		 * @return (alpha - beta) in radians
+		 */
+		public static double delta(double alpha, double beta) {
+			return Angles.delta(alpha, beta, a360);
+		}
+
+		/**
+		 * Difference of two angles (absolute value of delta)
+		 * 
+		 * @param alpha first angle
+		 * @param beta second angle
+		 * @return difference in radians
+		 */
+		public static double diff(double alpha, double beta) {
+			return Math.abs(Angles.delta(alpha, beta, a360));
+		}
+
+		/**
+		 * Cos
+		 * 
+		 * @param rad angle in rads
+		 * @return cos
+		 */
+		public static double cos(double rad) {
+			return Math.cos(rad);
+		}
+
+		/**
+		 * Sin
+		 * 
+		 * @param rad angle in rads
+		 * @return sin
+		 */
+		public static double sin(double rad) {
+			return Math.sin(rad);
+		}
+
+		/**
+		 * Tan
+		 * 
+		 * @param rad angle in rads
+		 * @return tan
+		 */
+		public static double tan(double rad) {
+			return Math.tan(rad);
+		}
+
+		/**
+		 * Angle normalized to 0-2*PI range
+		 * 
+		 * @param angle angle to normalize
+		 * @return normalized angle
+		 */
+		public static double norm(double angle) {
+			return Angles.norm(angle, a360);
+		}
+
+		/**
+		 * Convert to degrees
+		 * 
+		 * @param rad radians
+		 * @return degrees
+		 */
+		public static double toDeg(double rad) {
+			return Math.toDegrees(rad);
+		}
+	}
+
+	private static Random rand = new Random();
+
+
+	/**
+	 * Get volume of a sphere
+	 * 
+	 * @param radius sphere radius
+	 * @return volume in cubic units
+	 */
+	public static double sphereGetVolume(double radius) {
+		return (4D / 3D) * Math.PI * cube(radius);
+	}
+
+	/**
+	 * Get radius of a sphere
+	 * 
+	 * @param volume sphere volume
+	 * @return radius in units
+	 */
+	public static double sphereGetRadius(double volume) {
+		return Math.cbrt((3D * volume) / (4 * Math.PI));
+	}
+
+	/**
+	 * Get surface of a circle
+	 * 
+	 * @param radius circle radius
+	 * @return volume in square units
+	 */
+	public static double circleGetSurface(double radius) {
+		return Math.PI * square(radius);
+	}
+
+	/**
+	 * Get radius of a circle
+	 * 
+	 * @param surface circle volume
+	 * @return radius in units
+	 */
+	public static double circleGetRadius(double surface) {
+		return Math.sqrt(surface / Math.PI);
+	}
+
+	/**
+	 * Check if objects are equal (for equals function)
+	 * 
+	 * @param a
+	 * @param b
+	 * @return are equal
+	 */
+	public static boolean areObjectsEqual(Object a, Object b) {
+		return a == null ? b == null : a.equals(b);
+	}
+
+	/**
+	 * Private clamping helper.
+	 * 
+	 * @param number number to be clamped
+	 * @param min min value
+	 * @param max max value
+	 * @return clamped double
+	 */
+	private static double clamp_double(Number number, Number min, Number max) {
+		double n = number.doubleValue();
+		double mind = min.doubleValue();
+		double maxd = max.doubleValue();
+		if (n > maxd) n = maxd;
+		if (n < mind) n = mind;
+		return n;
+	}
+
+	/**
+	 * Private clamping helper.
+	 * 
+	 * @param number number to be clamped
+	 * @param min min value
+	 * @return clamped double
+	 */
+	private static double clamp_double(Number number, Number min) {
+		double n = number.doubleValue();
+		double mind = min.doubleValue();
+		if (n < mind) n = mind;
+		return n;
+	}
+
+	/**
+	 * Clamp number to min and max bounds, inclusive.<br>
+	 * DOUBLE version
+	 * 
+	 * @param number clamped number
+	 * @param min minimal allowed value
+	 * @param max maximal allowed value
+	 * @return result
+	 */
+	public static double clampd(Number number, Number min, Number max) {
+		return clamp_double(number, min, max);
+	}
+
+	/**
+	 * Clamp number to min and max bounds, inclusive.<br>
+	 * FLOAT version
+	 * 
+	 * @param number clamped number
+	 * @param min minimal allowed value
+	 * @param max maximal allowed value
+	 * @return result
+	 */
+	public static float clampf(Number number, Number min, Number max) {
+		return (float) clamp_double(number, min, max);
+	}
+
+	/**
+	 * Clamp number to min and max bounds, inclusive.<br>
+	 * INTEGER version
+	 * 
+	 * @param number clamped number
+	 * @param min minimal allowed value
+	 * @param max maximal allowed value
+	 * @return result
+	 */
+	public static int clampi(Number number, Number min, Number max) {
+		return (int) Math.round(clamp_double(number, min, max));
+	}
+
+	/**
+	 * Clamp number to min and max bounds, inclusive.<br>
+	 * INTEGER version
+	 * 
+	 * @param number clamped number
+	 * @param range range
+	 * @return result
+	 */
+	public static int clampi(Number number, Range range) {
+		return (int) Math.round(clamp_double(number, range.getMin(), range.getMax()));
+	}
+
+	/**
+	 * Clamp number to min and max bounds, inclusive.<br>
+	 * DOUBLE version
+	 * 
+	 * @param number clamped number
+	 * @param range range
+	 * @return result
+	 */
+	public static double clampd(Number number, Range range) {
+		return clamp_double(number, range.getMin(), range.getMax());
+	}
+
+	/**
+	 * Clamp number to min and max bounds, inclusive.<br>
+	 * FLOAT version
+	 * 
+	 * @param number clamped number
+	 * @param range range
+	 * @return result
+	 */
+	public static float clampf(Number number, Range range) {
+		return (float) clamp_double(number, range.getMin(), range.getMax());
+	}
+
+	/**
+	 * Clamp number to min and infinite bounds, inclusive.<br>
+	 * DOUBLE version
+	 * 
+	 * @param number clamped number
+	 * @param min minimal allowed value
+	 * @return result
+	 */
+	public static double clampd(Number number, Number min) {
+		return clamp_double(number, min);
+	}
+
+	/**
+	 * Clamp number to min and infinite bounds, inclusive.<br>
+	 * FLOAT version
+	 * 
+	 * @param number clamped number
+	 * @param min minimal allowed value
+	 * @return result
+	 */
+	public static float clampf(Number number, Number min) {
+		return (float) clamp_double(number, min);
+	}
+
+	/**
+	 * Clamp number to min and infinite bounds, inclusive.<br>
+	 * INTEGER version
+	 * 
+	 * @param number clamped number
+	 * @param min minimal allowed value
+	 * @return result
+	 */
+	public static int clampi(Number number, Number min) {
+		return (int) Math.round(clamp_double(number, min));
+	}
+
+	/**
+	 * Get class simple name
+	 * 
+	 * @param obj object
+	 * @return simple name
+	 */
+	public static String className(Object obj) {
+		if (obj == null) return "NULL";
+		return obj.getClass().getSimpleName();
+	}
+
+	/**
+	 * Cube a double
+	 * 
+	 * @param a squared double
+	 * @return square
+	 */
+	public static double cube(double a) {
+		return a * a * a;
+	}
+
+	/**
+	 * Convert double to string, remove the mess at the end.
+	 * 
+	 * @param d double
+	 * @return string
+	 */
+	public static String doubleToString(double d) {
+		String s = Double.toString(d);
+		s = s.replaceAll("([0-9]+\\.[0-9]+)00+[0-9]+", "$1");
+		s = s.replaceAll("0+$", "");
+		s = s.replaceAll("\\.$", "");
+		return s;
+	}
+
+	/**
+	 * Convert float to string, remove the mess at the end.
+	 * 
+	 * @param f float
+	 * @return string
+	 */
+	public static String floatToString(float f) {
+		String s = Float.toString(f);
+		s = s.replaceAll("([0-9]+\\.[0-9]+)00+[0-9]+", "$1");
+		s = s.replaceAll("0+$", "");
+		s = s.replaceAll("\\.$", "");
+		return s;
+	}
+
+	/**
+	 * Check if number is in range
+	 * 
+	 * @param number checked
+	 * @param left lower end
+	 * @param right upper end
+	 * @return is in range
+	 */
+	public static boolean inRange(double number, double left, double right) {
+		return number >= left && number <= right;
+	}
+
+	/**
+	 * Get number from A to B at delta time (tween A to B)
+	 * 
+	 * @param last last number
+	 * @param now new number
+	 * @param dtime delta time
+	 * @return current number to render
+	 */
+	public static double interpolate(double last, double now, double dtime) {
+		return last + (now - last) * dtime;
+	}
+
+	/**
+	 * Get angle [degrees] from A to B at delta time (tween A to B)
+	 * 
+	 * @param last last angle
+	 * @param now new angle
+	 * @param delta delta time
+	 * @return current angle to render
+	 */
+	public static double interpolateDeg(double last, double now, double delta) {
+		return Deg.norm(last + Deg.delta(now, last) * delta);
+	}
+
+	/**
+	 * Get highest number of a list
+	 * 
+	 * @param numbers numbers
+	 * @return lowest
+	 */
+	public static double max(double... numbers) {
+		double highest = numbers[0];
+		for (double num : numbers) {
+			if (num > highest) highest = num;
+		}
+		return highest;
+	}
+
+	/**
+	 * Get highest number of a list
+	 * 
+	 * @param numbers numbers
+	 * @return lowest
+	 */
+	public static float max(float... numbers) {
+		float highest = numbers[0];
+		for (float num : numbers) {
+			if (num > highest) highest = num;
+		}
+		return highest;
+	}
+
+	/**
+	 * Get highest number of a list
+	 * 
+	 * @param numbers numbers
+	 * @return lowest
+	 */
+	public static int max(int... numbers) {
+		int highest = numbers[0];
+		for (int num : numbers) {
+			if (num > highest) highest = num;
+		}
+		return highest;
+	}
+
+	/**
+	 * Get lowest number of a list
+	 * 
+	 * @param numbers numbers
+	 * @return lowest
+	 */
+	public static double min(double... numbers) {
+		double lowest = numbers[0];
+		for (double num : numbers) {
+			if (num < lowest) lowest = num;
+		}
+		return lowest;
+	}
+
+	/**
+	 * Get lowest number of a list
+	 * 
+	 * @param numbers numbers
+	 * @return lowest
+	 */
+	public static float min(float... numbers) {
+		float lowest = numbers[0];
+		for (float num : numbers) {
+			if (num < lowest) lowest = num;
+		}
+		return lowest;
+	}
+
+	/**
+	 * Get lowest number of a list
+	 * 
+	 * @param numbers numbers
+	 * @return lowest
+	 */
+	public static int min(int... numbers) {
+		int lowest = numbers[0];
+		for (int num : numbers) {
+			if (num < lowest) lowest = num;
+		}
+		return lowest;
+	}
+
+	/**
+	 * Split comma separated list of integers.
+	 * 
+	 * @param list String containing the list.
+	 * @return array of integers or null.
+	 */
+	public static List<Integer> parseIntList(String list) {
+		if (list == null) {
+			return null;
+		}
+		String[] parts = list.split(",");
+
+		ArrayList<Integer> intList = new ArrayList<Integer>();
+
+		for (String part : parts) {
+			try {
+				intList.add(Integer.parseInt(part));
+			} catch (NumberFormatException e) {}
+		}
+
+		return intList;
+
+	}
+
+	/**
+	 * Pick random element from a given list.
+	 * 
+	 * @param list list of choices
+	 * @return picked element
+	 */
+	public static Object pick(List<?> list) {
+		if (list.size() == 0) return null;
+		return list.get(rand.nextInt(list.size()));
+	}
+
+	/**
+	 * Square a double
+	 * 
+	 * @param a squared double
+	 * @return square
+	 */
+	public static double square(double a) {
+		return a * a;
+	}
+
+	/**
+	 * Signum.
+	 * 
+	 * @param number
+	 * @return sign, -1,0,1
+	 */
+	public static int sgn(double number) {
+		return number > 0 ? 1 : number < 0 ? -1 : 0;
+	}
+
+}

src/com/porcupine/math/Polar.java

@@ -0,0 +1,91 @@
+package com.porcupine.math;
+
+
+import com.porcupine.coord.Coord;
+
+
+/**
+ * Polar coordinate
+ * 
+ * @author MightyPork
+ */
+public class Polar {
+	/** angle in radians */
+	public double angle = 0;
+	/** distance in units */
+	public double distance = 0;
+
+	/**
+	 * @param angle angle in radians
+	 * @param distance distance from origin
+	 */
+	public Polar(double angle, double distance) {
+		this.angle = angle;
+		this.distance = distance;
+	}
+
+	/**
+	 * Make polar from coord
+	 * 
+	 * @param coord coord
+	 * @return polar
+	 */
+	public static Polar fromCoord(Coord coord) {
+		return new Polar(Math.atan2(coord.y, coord.x), Math.sqrt(Calc.square(coord.x) + Calc.square(coord.y)));
+	}
+
+	/**
+	 * Make polar from coords
+	 * 
+	 * @param x x coord
+	 * @param y y coord
+	 * @return polar
+	 */
+	public static Polar fromCoord(double x, double y) {
+		return Polar.fromCoord(new Coord(x, y));
+	}
+
+	/**
+	 * Make polar from coords
+	 * 
+	 * @param x x coord
+	 * @param z z coord
+	 * @return polar
+	 */
+	public static Polar fromCoordXZ(double x, double z) {
+		return Polar.fromCoordXZ(new Coord(x, 0, z));
+	}
+
+	/**
+	 * Get coord from polar
+	 * 
+	 * @return coord
+	 */
+	public Coord toCoord() {
+		return new Coord(distance * Math.cos(angle), distance * Math.sin(angle));
+	}
+
+	/**
+	 * Get X,0,Y coord from polar
+	 * 
+	 * @return coord
+	 */
+	public Coord toCoordXZ() {
+		return new Coord(distance * Math.cos(angle), 0, distance * Math.sin(angle));
+	}
+
+	@Override
+	public String toString() {
+		return "Polar(theta=" + angle + ", r=" + distance + ")";
+	}
+
+	/**
+	 * Build polar from X,Z instead of X,Y
+	 * 
+	 * @param coord cpprd with X,Z
+	 * @return polar
+	 */
+	public static Polar fromCoordXZ(Coord coord) {
+		return fromCoord(coord.x, coord.z);
+	}
+}

src/com/porcupine/math/PolarDeg.java

@@ -0,0 +1,95 @@
+package com.porcupine.math;
+
+
+import com.porcupine.coord.Coord;
+import com.porcupine.math.Calc.Deg;
+import com.porcupine.math.Calc.Rad;
+
+
+/**
+ * Polar coordinate in degrees
+ * 
+ * @author MightyPork
+ */
+public class PolarDeg {
+	/** angle in degrees */
+	public double angle = 0;
+	/** distance in units */
+	public double distance = 0;
+
+	/**
+	 * Polar coordinate in degrees
+	 * 
+	 * @param angle angle in degrees
+	 * @param distance distance from origin
+	 */
+	public PolarDeg(double angle, double distance) {
+		this.angle = angle;
+		this.distance = distance;
+	}
+
+	/**
+	 * Make polar from coord
+	 * 
+	 * @param coord coord
+	 * @return polar
+	 */
+	public static PolarDeg fromCoord(Coord coord) {
+		return new PolarDeg(Rad.toDeg(Math.atan2(coord.y, coord.x)), Math.sqrt(Calc.square(coord.x) + Calc.square(coord.y)));
+	}
+
+	/**
+	 * Make polar from coords
+	 * 
+	 * @param x x coord
+	 * @param y y coord
+	 * @return polar
+	 */
+	public static PolarDeg fromCoord(double x, double y) {
+		return PolarDeg.fromCoord(new Coord(x, y));
+	}
+
+	/**
+	 * Make polar from coords
+	 * 
+	 * @param x x coord
+	 * @param z y coord
+	 * @return polar
+	 */
+	public static PolarDeg fromCoordXZ(double x, double z) {
+		return PolarDeg.fromCoordXZ(new Coord(x, 0, z));
+	}
+
+	/**
+	 * Get coord from polar
+	 * 
+	 * @return coord
+	 */
+	public Coord toCoord() {
+		return new Coord(distance * Math.cos(Deg.toRad(angle)), distance * Math.sin(Deg.toRad(angle)));
+	}
+
+	/**
+	 * Get X,0,Y coord from polar
+	 * 
+	 * @return coord
+	 */
+	public Coord toCoordXZ() {
+		return new Coord(distance * Math.cos(Deg.toRad(angle)), 0, distance * Math.sin(Deg.toRad(angle)));
+	}
+
+	@Override
+	public String toString() {
+		return "Polar(theta=" + angle + ", r=" + distance + ")";
+	}
+
+	/**
+	 * Build polar from X,Z instead of X,Y
+	 * 
+	 * @param coord cpprd with X,Z
+	 * @return polar
+	 */
+	public static PolarDeg fromCoordXZ(Coord coord) {
+		return fromCoord(coord.x, coord.z);
+	}
+}

src/com/porcupine/math/Range.java

@@ -0,0 +1,174 @@
+package com.porcupine.math;
+
+
+import java.util.Random;
+
+
+/**
+ * Numeric range, able to generate random numbers and give min/max values.
+ * 
+ * @author MightyPork
+ */
+public class Range {
+	private double min = 0;
+	private double max = 1;
+
+	private static Random rand = new Random();
+
+	/**
+	 * Implicit range constructor 0-1
+	 */
+	public Range() {}
+
+
+	/**
+	 * Create new range
+	 * 
+	 * @param min min number
+	 * @param max max number
+	 */
+	public Range(double min, double max) {
+		if (min > max) {
+			double t = min;
+			min = max;
+			max = t;
+		}
+		this.min = min;
+		this.max = max;
+	}
+
+	/**
+	 * Create new range
+	 * 
+	 * @param minmax min = max number
+	 */
+	public Range(double minmax) {
+		this.min = minmax;
+		this.max = minmax;
+	}
+
+	/**
+	 * Get random integer from range
+	 * 
+	 * @return random int
+	 */
+	public int randInt() {
+		return (int) (Math.round(min) + rand.nextInt((int) (Math.round(max) - Math.round(min)) + 1));
+	}
+
+	/**
+	 * Get random double from this range
+	 * 
+	 * @return random double
+	 */
+	public double randDouble() {
+		return min + rand.nextDouble() * (max - min);
+	}
+
+	/**
+	 * Get min
+	 * 
+	 * @return min number
+	 */
+	public double getMin() {
+		return min;
+	}
+
+	/**
+	 * Get max
+	 * 
+	 * @return max number
+	 */
+	public double getMax() {
+		return max;
+	}
+
+	/**
+	 * Get min
+	 * 
+	 * @return min number
+	 */
+	public int getMinI() {
+		return (int) min;
+	}
+
+	/**
+	 * Get max
+	 * 
+	 * @return max number
+	 */
+	public int getMaxI() {
+		return (int) max;
+	}
+
+	/**
+	 * Set min
+	 * 
+	 * @param min min value
+	 */
+	public void setMin(double min) {
+		this.min = min;
+	}
+
+	/**
+	 * Set max
+	 * 
+	 * @param max max value
+	 */
+	public void setMax(double max) {
+		this.max = max;
+	}
+
+	@Override
+	public String toString() {
+		return "Range(" + min + ";" + max + ")";
+	}
+
+
+	/**
+	 * Get identical copy
+	 * 
+	 * @return copy
+	 */
+	public Range copy() {
+		return new Range(min, max);
+	}
+
+
+	/**
+	 * Set to value of other range
+	 * 
+	 * @param other copied range
+	 */
+	public void setTo(Range other) {
+		if (other == null) return;
+		min = other.min;
+		max = other.max;
+
+		if (min > max) {
+			double t = min;
+			min = max;
+			max = t;
+		}
+	}
+
+
+	/**
+	 * Set to min-max values
+	 * 
+	 * @param min min value
+	 * @param max max value
+	 */
+	public void setTo(double min, double max) {
+
+		if (min > max) {
+			double t = min;
+			min = max;
+			max = t;
+		}
+
+		this.min = min;
+		this.max = max;
+	}
+
+}

src/com/porcupine/mutable/AbstractMutable.java

@@ -0,0 +1,52 @@
+package com.porcupine.mutable;
+
+
+/**
+ * Mutable object
+ * 
+ * @author MightyPork
+ * @param <T> type
+ */
+public abstract class AbstractMutable<T> {
+	/** The wrapped value */
+	public T o = getDefault();
+
+	/**
+	 * Implicint constructor
+	 */
+	public AbstractMutable() {}
+
+	/**
+	 * new mutable object
+	 * 
+	 * @param o value
+	 */
+	public AbstractMutable(T o) {
+		this.o = o;
+	}
+
+	/**
+	 * Get the wrapped value
+	 * 
+	 * @return value
+	 */
+	public T get() {
+		return o;
+	}
+
+	/**
+	 * Set value
+	 * 
+	 * @param o new value to set
+	 */
+	public void set(T o) {
+		this.o = o;
+	}
+
+	/**
+	 * Get default value
+	 * 
+	 * @return default value
+	 */
+	protected abstract T getDefault();
+}

src/com/porcupine/mutable/MBoolean.java

@@ -0,0 +1,28 @@
+package com.porcupine.mutable;
+
+
+/**
+ * Mutable boolean
+ * 
+ * @author MightyPork
+ */
+public class MBoolean extends AbstractMutable<Boolean> {
+	/**
+	 * Mutable boolean
+	 * 
+	 * @param o value
+	 */
+	public MBoolean(Boolean o) {
+		super(o);
+	}
+
+	/**
+	 * Imp.c.
+	 */
+	public MBoolean() {}
+
+	@Override
+	protected Boolean getDefault() {
+		return false;
+	}
+}

src/com/porcupine/mutable/MDouble.java

@@ -0,0 +1,28 @@
+package com.porcupine.mutable;
+
+
+/**
+ * Mutable double
+ * 
+ * @author MightyPork
+ */
+public class MDouble extends AbstractMutable<Double> {
+	/**
+	 * Mutable double
+	 * 
+	 * @param o value
+	 */
+	public MDouble(Double o) {
+		super(o);
+	}
+
+	/**
+	 * Imp.c.
+	 */
+	public MDouble() {}
+
+	@Override
+	protected Double getDefault() {
+		return 0d;
+	}
+}

src/com/porcupine/mutable/MFloat.java

@@ -0,0 +1,29 @@
+package com.porcupine.mutable;
+
+
+/**
+ * Mutable float
+ * 
+ * @author MightyPork
+ */
+public class MFloat extends AbstractMutable<Float> {
+	/**
+	 * Mutable float
+	 * 
+	 * @param o value
+	 */
+	public MFloat(Float o) {
+		super(o);
+	}
+
+
+	/**
+	 * Imp.c.
+	 */
+	public MFloat() {}
+
+	@Override
+	protected Float getDefault() {
+		return 0f;
+	}
+}

src/com/porcupine/mutable/MInt.java

@@ -0,0 +1,28 @@
+package com.porcupine.mutable;
+
+
+/**
+ * Mutable integer
+ * 
+ * @author MightyPork
+ */
+public class MInt extends AbstractMutable<Integer> {
+	/**
+	 * Mutable int
+	 * 
+	 * @param o value
+	 */
+	public MInt(Integer o) {
+		super(o);
+	}
+
+	/**
+	 * Imp.c.
+	 */
+	public MInt() {}
+
+	@Override
+	protected Integer getDefault() {
+		return 0;
+	}
+}

src/com/porcupine/mutable/MString.java

@@ -0,0 +1,28 @@
+package com.porcupine.mutable;
+
+
+/**
+ * Mutable string
+ * 
+ * @author MightyPork
+ */
+public class MString extends AbstractMutable<String> {
+	/**
+	 * Mutable string
+	 * 
+	 * @param o value
+	 */
+	public MString(String o) {
+		super(o);
+	}
+
+	/**
+	 * Imp.c.
+	 */
+	public MString() {}
+
+	@Override
+	protected String getDefault() {
+		return "";
+	}
+}

src/com/porcupine/struct/Struct2.java

@@ -0,0 +1,132 @@
+package com.porcupine.struct;
+
+
+import com.porcupine.math.Calc;
+
+
+/**
+ * Structure of 2 objects.
+ * 
+ * @author MightyPork
+ * @copy (c) 2012
+ * @param <T1> 1st object class
+ * @param <T2> 2nd object class
+ */
+public class Struct2<T1, T2> {
+	/**
+	 * 1st object
+	 */
+	public T1 a;
+
+	/**
+	 * 2nd object
+	 */
+	public T2 b;
+
+	/**
+	 * Make structure of 2 objects
+	 * 
+	 * @param objA 1st object
+	 * @param objB 2nd object
+	 */
+	public Struct2(T1 objA, T2 objB) {
+		a = objA;
+		b = objB;
+	}
+
+	/**
+	 * @return 1st object
+	 */
+	public T1 getA() {
+		return a;
+	}
+
+	/**
+	 * @return 2nd object
+	 */
+	public T2 getB() {
+		return b;
+	}
+
+	/**
+	 * @return 1st object
+	 */
+	public T1 get1() {
+		return a;
+	}
+
+	/**
+	 * @return 2nd object
+	 */
+	public T2 get2() {
+		return b;
+	}
+
+
+	/**
+	 * Set 1st object
+	 * 
+	 * @param obj 1st object
+	 */
+	public void setA(T1 obj) {
+		a = obj;
+	}
+
+	/**
+	 * Set 2nd object
+	 * 
+	 * @param obj 2nd object
+	 */
+	public void setB(T2 obj) {
+		b = obj;
+	}
+
+	/**
+	 * Set 1st object
+	 * 
+	 * @param obj 1st object
+	 */
+	public void set1(T1 obj) {
+		a = obj;
+	}
+
+	/**
+	 * Set 2nd object
+	 * 
+	 * @param obj 2nd object
+	 */
+	public void set2(T2 obj) {
+		b = obj;
+	}
+
+
+	@Override
+	public boolean equals(Object obj) {
+		if (obj == null) {
+			return false;
+		}
+
+		if (!this.getClass().equals(obj.getClass())) {
+			return false;
+		}
+
+		Struct2<?, ?> t = (Struct2<?, ?>) obj;
+
+		return Calc.areObjectsEqual(a, t.a) && Calc.areObjectsEqual(b, t.b);
+
+	}
+
+	@Override
+	public int hashCode() {
+		int hash = 0;
+		hash += (a == null ? 0 : a.hashCode());
+		hash += (b == null ? 0 : b.hashCode());
+		return hash;
+	}
+
+	@Override
+	public String toString() {
+		return "STRUCT {" + a + "," + b + "}";
+	}
+
+}

src/com/porcupine/struct/Struct3.java

@@ -0,0 +1,172 @@
+package com.porcupine.struct;
+
+
+import com.porcupine.math.Calc;
+
+
+/**
+ * Structure of 3 objects.
+ * 
+ * @author MightyPork
+ * @copy (c) 2012
+ * @param <T1> 1st object class
+ * @param <T2> 2nd object class
+ * @param <T3> 3rd object class
+ */
+public class Struct3<T1, T2, T3> {
+	/**
+	 * 1st object
+	 */
+	public T1 a;
+
+	/**
+	 * 2nd object
+	 */
+	public T2 b;
+
+	/**
+	 * 3rd object
+	 */
+	public T3 c;
+
+	/**
+	 * Make structure of 3 objects
+	 * 
+	 * @param objA 1st object
+	 * @param objB 2nd object
+	 * @param objC 3rd object
+	 */
+	public Struct3(T1 objA, T2 objB, T3 objC) {
+		a = objA;
+		b = objB;
+		c = objC;
+	}
+
+	/**
+	 * @return 1st object
+	 */
+	public T1 getA() {
+		return a;
+	}
+
+	/**
+	 * @return 2nd object
+	 */
+	public T2 getB() {
+		return b;
+	}
+
+	/**
+	 * @return 3rd object
+	 */
+	public T3 getC() {
+		return c;
+	}
+
+	/**
+	 * @return 1st object
+	 */
+	public T1 get1() {
+		return a;
+	}
+
+	/**
+	 * @return 2nd object
+	 */
+	public T2 get2() {
+		return b;
+	}
+
+	/**
+	 * @return 3rd object
+	 */
+	public T3 get3() {
+		return c;
+	}
+
+	/**
+	 * Set 1st object
+	 * 
+	 * @param obj 1st object
+	 */
+	public void setA(T1 obj) {
+		a = obj;
+	}
+
+	/**
+	 * Set 2nd object
+	 * 
+	 * @param obj 2nd object
+	 */
+	public void setB(T2 obj) {
+		b = obj;
+	}
+
+	/**
+	 * Set 3rd object
+	 * 
+	 * @param obj 3rd object
+	 */
+	public void setC(T3 obj) {
+		c = obj;
+	}
+
+	/**
+	 * Set 1st object
+	 * 
+	 * @param obj 1st object
+	 */
+	public void set1(T1 obj) {
+		a = obj;
+	}
+
+	/**
+	 * Set 2nd object
+	 * 
+	 * @param obj 2nd object
+	 */
+	public void set2(T2 obj) {
+		b = obj;
+	}
+
+	/**
+	 * Set 3rd object
+	 * 
+	 * @param obj 3rd object
+	 */
+	public void set3(T3 obj) {
+		c = obj;
+	}
+
+
+	@Override
+	public boolean equals(Object obj) {
+		if (obj == null) {
+			return false;
+		}
+
+		if (!this.getClass().equals(obj.getClass())) {
+			return false;
+		}
+
+		Struct3<?, ?, ?> t = (Struct3<?, ?, ?>) obj;
+
+		return Calc.areObjectsEqual(a, t.a) && Calc.areObjectsEqual(b, t.b) && Calc.areObjectsEqual(c, t.c);
+
+	}
+
+	@Override
+	public int hashCode() {
+		int hash = 0;
+		hash += (a == null ? 0 : a.hashCode());
+		hash += (b == null ? 0 : b.hashCode());
+		hash += (c == null ? 0 : c.hashCode());
+		return hash;
+	}
+
+	@Override
+	public String toString() {
+		return "STRUCT {" + a + "," + b + "," + c + "}";
+	}
+
+}

src/com/porcupine/struct/Struct4.java

@@ -0,0 +1,213 @@
+package com.porcupine.struct;
+
+
+import com.porcupine.math.Calc;
+
+
+/**
+ * Structure of 4 objects.
+ * 
+ * @author MightyPork
+ * @copy (c) 2012
+ * @param <T1> 1st object class
+ * @param <T2> 2nd object class
+ * @param <T3> 3rd object class
+ * @param <T4> 4th object class
+ */
+public class Struct4<T1, T2, T3, T4> {
+	/**
+	 * 1st object
+	 */
+	public T1 a;
+
+	/**
+	 * 2nd object
+	 */
+	public T2 b;
+
+	/**
+	 * 3rd object
+	 */
+	public T3 c;
+
+	/**
+	 * 4th object
+	 */
+	public T4 d;
+
+	/**
+	 * Make structure of 4 objects
+	 * 
+	 * @param objA 1st object
+	 * @param objB 2nd object
+	 * @param objC 3rd object
+	 * @param objD 4th object
+	 */
+	public Struct4(T1 objA, T2 objB, T3 objC, T4 objD) {
+		a = objA;
+		b = objB;
+		c = objC;
+		d = objD;
+	}
+
+	/**
+	 * @return 1st object
+	 */
+	public T1 getA() {
+		return a;
+	}
+
+	/**
+	 * @return 2nd object
+	 */
+	public T2 getB() {
+		return b;
+	}
+
+	/**
+	 * @return 3rd object
+	 */
+	public T3 getC() {
+		return c;
+	}
+
+	/**
+	 * @return 4th object
+	 */
+	public T4 getD() {
+		return d;
+	}
+
+	/**
+	 * @return 1st object
+	 */
+	public T1 get1() {
+		return a;
+	}
+
+	/**
+	 * @return 2nd object
+	 */
+	public T2 get2() {
+		return b;
+	}
+
+	/**
+	 * @return 3rd object
+	 */
+	public T3 get3() {
+		return c;
+	}
+
+	/**
+	 * @return 4th object
+	 */
+	public T4 get4() {
+		return d;
+	}
+
+	/**
+	 * Set 1st object
+	 * 
+	 * @param obj 1st object
+	 */
+	public void setA(T1 obj) {
+		a = obj;
+	}
+
+	/**
+	 * Set 2nd object
+	 * 
+	 * @param obj 2nd object
+	 */
+	public void setB(T2 obj) {
+		b = obj;
+	}
+
+	/**
+	 * Set 3rd object
+	 * 
+	 * @param obj 3rd object
+	 */
+	public void setC(T3 obj) {
+		c = obj;
+	}
+
+	/**
+	 * Set 4th object
+	 * 
+	 * @param obj 4th object
+	 */
+	public void setD(T4 obj) {
+		d = obj;
+	}
+
+	/**
+	 * Set 1st object
+	 * 
+	 * @param obj 1st object
+	 */
+	public void set1(T1 obj) {
+		a = obj;
+	}
+
+	/**
+	 * Set 2nd object
+	 * 
+	 * @param obj 2nd object
+	 */
+	public void set2(T2 obj) {
+		b = obj;
+	}
+
+	/**
+	 * Set 3rd object
+	 * 
+	 * @param obj 3rd object
+	 */
+	public void set3(T3 obj) {
+		c = obj;
+	}
+
+	/**
+	 * Set 4th object
+	 * 
+	 * @param obj 4th object
+	 */
+	public void set4(T4 obj) {
+		d = obj;
+	}
+
+
+	@Override
+	public boolean equals(Object obj) {
+		if (obj == null) {
+			return false;
+		}
+
+		if (!this.getClass().equals(obj.getClass())) {
+			return false;
+		}
+
+		Struct4<?, ?, ?, ?> t = (Struct4<?, ?, ?, ?>) obj;
+
+		return Calc.areObjectsEqual(a, t.a) && Calc.areObjectsEqual(b, t.b) && Calc.areObjectsEqual(c, t.c) && Calc.areObjectsEqual(d, t.d);
+
+	}
+
+	@Override
+	public int hashCode() {
+		int hash = 0;
+		hash += (a == null ? 0 : a.hashCode());
+		hash += (b == null ? 0 : b.hashCode());
+		hash += (c == null ? 0 : c.hashCode());
+		hash += (d == null ? 0 : d.hashCode());
+		return hash;
+	}
+
+	@Override
+	public String toString() {
+		return "STRUCT {" + a + "," + b + "," + c + "," + d + "}";
+	}
+
+}

src/com/porcupine/struct/Struct5.java

@@ -0,0 +1,256 @@
+package com.porcupine.struct;
+
+
+import com.porcupine.math.Calc;
+
+
+/**
+ * Structure of 5 objects.
+ * 
+ * @author MightyPork
+ * @copy (c) 2012
+ * @param <T1> 1st object class
+ * @param <T2> 2nd object class
+ * @param <T3> 3rd object class
+ * @param <T4> 4th object class
+ * @param <T5> 5th object class
+ */
+public class Struct5<T1, T2, T3, T4, T5> {
+	/**
+	 * 1st object
+	 */
+	public T1 a;
+
+	/**
+	 * 2nd object
+	 */
+	public T2 b;
+
+	/**
+	 * 3rd object
+	 */
+	public T3 c;
+
+	/**
+	 * 4th object
+	 */
+	public T4 d;
+
+	/**
+	 * 5th object
+	 */
+	public T5 e;
+
+	/**
+	 * Make structure of 4 objects
+	 * 
+	 * @param objA 1st object
+	 * @param objB 2nd object
+	 * @param objC 3rd object
+	 * @param objD 4th object
+	 * @param objE 5th object
+	 */
+	public Struct5(T1 objA, T2 objB, T3 objC, T4 objD, T5 objE) {
+		a = objA;
+		b = objB;
+		c = objC;
+		d = objD;
+		e = objE;
+	}
+
+	/**
+	 * @return 1st object
+	 */
+	public T1 getA() {
+		return a;
+	}
+
+	/**
+	 * @return 2nd object
+	 */
+	public T2 getB() {
+		return b;
+	}
+
+	/**
+	 * @return 3rd object
+	 */
+	public T3 getC() {
+		return c;
+	}
+
+	/**
+	 * @return 4th object
+	 */
+	public T4 getD() {
+		return d;
+	}
+
+	/**
+	 * @return 5th object
+	 */
+	public T5 getE() {
+		return e;
+	}
+
+	/**
+	 * @return 1st object
+	 */
+	public T1 get1() {
+		return a;
+	}
+
+	/**
+	 * @return 2nd object
+	 */
+	public T2 get2() {
+		return b;
+	}
+
+	/**
+	 * @return 3rd object
+	 */
+	public T3 get3() {
+		return c;
+	}
+
+	/**
+	 * @return 4th object
+	 */
+	public T4 get4() {
+		return d;
+	}
+
+	/**
+	 * @return 5th object
+	 */
+	public T5 get5() {
+		return e;
+	}
+
+
+
+	/**
+	 * Set 1st object
+	 * 
+	 * @param obj 1st object
+	 */
+	public void setA(T1 obj) {
+		a = obj;
+	}
+
+	/**
+	 * Set 2nd object
+	 * 
+	 * @param obj 2nd object
+	 */
+	public void setB(T2 obj) {
+		b = obj;
+	}
+
+	/**
+	 * Set 3rd object
+	 * 
+	 * @param obj 3rd object
+	 */
+	public void setC(T3 obj) {
+		c = obj;
+	}
+
+	/**
+	 * Set 4th object
+	 * 
+	 * @param obj 4th object
+	 */
+	public void setD(T4 obj) {
+		d = obj;
+	}
+
+	/**
+	 * Set 5th object
+	 * 
+	 * @param obj 5th object
+	 */
+	public void setE(T5 obj) {
+		e = obj;
+	}
+
+	/**
+	 * Set 1st object
+	 * 
+	 * @param obj 1st object
+	 */
+	public void set1(T1 obj) {
+		a = obj;
+	}
+
+	/**
+	 * Set 2nd object
+	 * 
+	 * @param obj 2nd object
+	 */
+	public void set2(T2 obj) {
+		b = obj;
+	}
+
+	/**
+	 * Set 3rd object
+	 * 
+	 * @param obj 3rd object
+	 */
+	public void set3(T3 obj) {
+		c = obj;
+	}
+
+	/**
+	 * Set 4th object
+	 * 
+	 * @param obj 4th object
+	 */
+	public void set4(T4 obj) {
+		d = obj;
+	}
+
+	/**
+	 * Set 5th object
+	 * 
+	 * @param obj 5th object
+	 */
+	public void set5(T5 obj) {
+		e = obj;
+	}
+
+	@Override
+	public boolean equals(Object obj) {
+		if (obj == null) {
+			return false;
+		}
+
+		if (!this.getClass().equals(obj.getClass())) {
+			return false;
+		}
+
+		Struct5<?, ?, ?, ?, ?> t = (Struct5<?, ?, ?, ?, ?>) obj;
+
+		return Calc.areObjectsEqual(a, t.a) && Calc.areObjectsEqual(b, t.b) && Calc.areObjectsEqual(c, t.c) && Calc.areObjectsEqual(d, t.d)
+				&& Calc.areObjectsEqual(e, t.e);
+
+	}
+
+	@Override
+	public int hashCode() {
+		int hash = 0;
+		hash += (a == null ? 0 : a.hashCode());
+		hash += (b == null ? 0 : b.hashCode());
+		hash += (c == null ? 0 : c.hashCode());
+		hash += (d == null ? 0 : d.hashCode());
+		hash += (e == null ? 0 : e.hashCode());
+		return hash;
+	}
+
+	@Override
+	public String toString() {
+		return "STRUCT {" + a + "," + b + "," + c + "," + d + "," + e + "}";
+	}
+
+}

src/com/porcupine/struct/Struct6.java

@@ -0,0 +1,295 @@
+package com.porcupine.struct;
+
+
+import com.porcupine.math.Calc;
+
+
+/**
+ * Structure of 6 objects.
+ * 
+ * @author MightyPork
+ * @copy (c) 2012
+ * @param <T1> 1st object class
+ * @param <T2> 2nd object class
+ * @param <T3> 3rd object class
+ * @param <T4> 4th object class
+ * @param <T5> 5th object class
+ * @param <T6> 6th object class
+ */
+public class Struct6<T1, T2, T3, T4, T5, T6> {
+	/**
+	 * 1st object
+	 */
+	public T1 a;
+
+	/**
+	 * 2nd object
+	 */
+	public T2 b;
+
+	/**
+	 * 3rd object
+	 */
+	public T3 c;
+
+	/**
+	 * 4th object
+	 */
+	public T4 d;
+
+	/**
+	 * 5th object
+	 */
+	public T5 e;
+
+	/**
+	 * 6th object
+	 */
+	public T6 f;
+
+	/**
+	 * Make structure of 4 objects
+	 * 
+	 * @param objA 1st object
+	 * @param objB 2nd object
+	 * @param objC 3rd object
+	 * @param objD 4th object
+	 * @param objE 5th object
+	 * @param objF 6th object
+	 */
+	public Struct6(T1 objA, T2 objB, T3 objC, T4 objD, T5 objE, T6 objF) {
+		a = objA;
+		b = objB;
+		c = objC;
+		d = objD;
+		e = objE;
+		f = objF;
+	}
+
+	/**
+	 * @return 1st object
+	 */
+	public T1 getA() {
+		return a;
+	}
+
+	/**
+	 * @return 2nd object
+	 */
+	public T2 getB() {
+		return b;
+	}
+
+	/**
+	 * @return 3rd object
+	 */
+	public T3 getC() {
+		return c;
+	}
+
+	/**
+	 * @return 4th object
+	 */
+	public T4 getD() {
+		return d;
+	}
+
+	/**
+	 * @return 5th object
+	 */
+	public T5 getE() {
+		return e;
+	}
+
+	/**
+	 * @return 6th object
+	 */
+	public T6 getF() {
+		return f;
+	}
+
+	/**
+	 * @return 1st object
+	 */
+	public T1 get1() {
+		return a;
+	}
+
+	/**
+	 * @return 2nd object
+	 */
+	public T2 get2() {
+		return b;
+	}
+
+	/**
+	 * @return 3rd object
+	 */
+	public T3 get3() {
+		return c;
+	}
+
+	/**
+	 * @return 4th object
+	 */
+	public T4 get4() {
+		return d;
+	}
+
+	/**
+	 * @return 5th object
+	 */
+	public T5 get5() {
+		return e;
+	}
+
+	/**
+	 * @return 6th object
+	 */
+	public T6 get6() {
+		return f;
+	}
+
+	/**
+	 * Set 1st object
+	 * 
+	 * @param obj 1st object
+	 */
+	public void setA(T1 obj) {
+		a = obj;
+	}
+
+	/**
+	 * Set 2nd object
+	 * 
+	 * @param obj 2nd object
+	 */
+	public void setB(T2 obj) {
+		b = obj;
+	}
+
+	/**
+	 * Set 3rd object
+	 * 
+	 * @param obj 3rd object
+	 */
+	public void setC(T3 obj) {
+		c = obj;
+	}
+
+	/**
+	 * Set 4th object
+	 * 
+	 * @param obj 4th object
+	 */
+	public void setD(T4 obj) {
+		d = obj;
+	}
+
+	/**
+	 * Set 5th object
+	 * 
+	 * @param obj 5th object
+	 */
+	public void setE(T5 obj) {
+		e = obj;
+	}
+
+	/**
+	 * Set 6th object
+	 * 
+	 * @param obj 6th object
+	 */
+	public void setF(T6 obj) {
+		f = obj;
+	}
+
+	/**
+	 * Set 1st object
+	 * 
+	 * @param obj 1st object
+	 */
+	public void set1(T1 obj) {
+		a = obj;
+	}
+
+	/**
+	 * Set 2nd object
+	 * 
+	 * @param obj 2nd object
+	 */
+	public void set2(T2 obj) {
+		b = obj;
+	}
+
+	/**
+	 * Set 3rd object
+	 * 
+	 * @param obj 3rd object
+	 */
+	public void set3(T3 obj) {
+		c = obj;
+	}
+
+	/**
+	 * Set 4th object
+	 * 
+	 * @param obj 4th object
+	 */
+	public void set4(T4 obj) {
+		d = obj;
+	}
+
+	/**
+	 * Set 5th object
+	 * 
+	 * @param obj 5th object
+	 */
+	public void set5(T5 obj) {
+		e = obj;
+	}
+
+	/**
+	 * Set 6th object
+	 * 
+	 * @param obj 6th object
+	 */
+	public void set6(T6 obj) {
+		f = obj;
+	}
+
+	@Override
+	public boolean equals(Object obj) {
+		if (obj == null) {
+			return false;
+		}
+
+		if (!this.getClass().equals(obj.getClass())) {
+			return false;
+		}
+
+		Struct6<?, ?, ?, ?, ?, ?> t = (Struct6<?, ?, ?, ?, ?, ?>) obj;
+
+		return Calc.areObjectsEqual(a, t.a) && Calc.areObjectsEqual(b, t.b) && Calc.areObjectsEqual(c, t.c) && Calc.areObjectsEqual(d, t.d)
+				&& Calc.areObjectsEqual(e, t.e) && Calc.areObjectsEqual(f, t.f);
+
+	}
+
+	@Override
+	public int hashCode() {
+		int hash = 0;
+		hash += (a == null ? 0 : a.hashCode());
+		hash += (b == null ? 0 : b.hashCode());
+		hash += (c == null ? 0 : c.hashCode());
+		hash += (d == null ? 0 : d.hashCode());
+		hash += (e == null ? 0 : e.hashCode());
+		hash += (f == null ? 0 : f.hashCode());
+		return hash;
+	}
+
+	@Override
+	public String toString() {
+		return "STRUCT {" + a + "," + b + "," + c + "," + d + "," + e + "," + f + "}";
+	}
+
+}

src/com/porcupine/struct/Struct7.java

@@ -0,0 +1,336 @@
+package com.porcupine.struct;
+
+
+import com.porcupine.math.Calc;
+
+
+/**
+ * Structure of 7 objects.
+ * 
+ * @author MightyPork
+ * @copy (c) 2012
+ * @param <T1> 1st object class
+ * @param <T2> 2nd object class
+ * @param <T3> 3rd object class
+ * @param <T4> 4th object class
+ * @param <T5> 5th object class
+ * @param <T6> 6th object class
+ * @param <T7> 7th object class
+ */
+public class Struct7<T1, T2, T3, T4, T5, T6, T7> {
+	/**
+	 * 1st object
+	 */
+	public T1 a;
+
+	/**
+	 * 2nd object
+	 */
+	public T2 b;
+
+	/**
+	 * 3rd object
+	 */
+	public T3 c;
+
+	/**
+	 * 4th object
+	 */
+	public T4 d;
+
+	/**
+	 * 5th object
+	 */
+	public T5 e;
+
+	/**
+	 * 6th object
+	 */
+	public T6 f;
+
+	/**
+	 * 7th object
+	 */
+	public T7 g;
+
+	/**
+	 * Make structure of 4 objects
+	 * 
+	 * @param objA 1st object
+	 * @param objB 2nd object
+	 * @param objC 3rd object
+	 * @param objD 4th object
+	 * @param objE 5th object
+	 * @param objF 6th object
+	 * @param objG 7th object
+	 */
+	public Struct7(T1 objA, T2 objB, T3 objC, T4 objD, T5 objE, T6 objF, T7 objG) {
+		a = objA;
+		b = objB;
+		c = objC;
+		d = objD;
+		e = objE;
+		f = objF;
+		g = objG;
+	}
+
+	/**
+	 * @return 1st object
+	 */
+	public T1 getA() {
+		return a;
+	}
+
+	/**
+	 * @return 2nd object
+	 */
+	public T2 getB() {
+		return b;
+	}
+
+	/**
+	 * @return 3rd object
+	 */
+	public T3 getC() {
+		return c;
+	}
+
+	/**
+	 * @return 4th object
+	 */
+	public T4 getD() {
+		return d;
+	}
+
+	/**
+	 * @return 5th object
+	 */
+	public T5 getE() {
+		return e;
+	}
+
+	/**
+	 * @return 6th object
+	 */
+	public T6 getF() {
+		return f;
+	}
+
+	/**
+	 * @return 7th object
+	 */
+	public T7 getG() {
+		return g;
+	}
+
+	/**
+	 * @return 1st object
+	 */
+	public T1 get1() {
+		return a;
+	}
+
+	/**
+	 * @return 2nd object
+	 */
+	public T2 get2() {
+		return b;
+	}
+
+	/**
+	 * @return 3rd object
+	 */
+	public T3 get3() {
+		return c;
+	}
+
+	/**
+	 * @return 4th object
+	 */
+	public T4 get4() {
+		return d;
+	}
+
+	/**
+	 * @return 5th object
+	 */
+	public T5 get5() {
+		return e;
+	}
+
+	/**
+	 * @return 6th object
+	 */
+	public T6 get6() {
+		return f;
+	}
+
+	/**
+	 * @return 7th object
+	 */
+	public T7 get7() {
+		return g;
+	}
+
+	/**
+	 * Set 1st object
+	 * 
+	 * @param obj 1st object
+	 */
+	public void setA(T1 obj) {
+		a = obj;
+	}
+
+	/**
+	 * Set 2nd object
+	 * 
+	 * @param obj 2nd object
+	 */
+	public void setB(T2 obj) {
+		b = obj;
+	}
+
+	/**
+	 * Set 3rd object
+	 * 
+	 * @param obj 3rd object
+	 */
+	public void setC(T3 obj) {
+		c = obj;
+	}
+
+	/**
+	 * Set 4th object
+	 * 
+	 * @param obj 4th object
+	 */
+	public void setD(T4 obj) {
+		d = obj;
+	}
+
+	/**
+	 * Set 5th object
+	 * 
+	 * @param obj 5th object
+	 */
+	public void setE(T5 obj) {
+		e = obj;
+	}
+
+	/**
+	 * Set 6th object
+	 * 
+	 * @param obj 6th object
+	 */
+	public void setF(T6 obj) {
+		f = obj;
+	}
+
+	/**
+	 * Set 7th object
+	 * 
+	 * @param obj 6th object
+	 */
+	public void setG(T7 obj) {
+		g = obj;
+	}
+
+	/**
+	 * Set 1st object
+	 * 
+	 * @param obj 1st object
+	 */
+	public void set1(T1 obj) {
+		a = obj;
+	}
+
+	/**
+	 * Set 2nd object
+	 * 
+	 * @param obj 2nd object
+	 */
+	public void set2(T2 obj) {
+		b = obj;
+	}
+
+	/**
+	 * Set 3rd object
+	 * 
+	 * @param obj 3rd object
+	 */
+	public void set3(T3 obj) {
+		c = obj;
+	}
+
+	/**
+	 * Set 4th object
+	 * 
+	 * @param obj 4th object
+	 */
+	public void set4(T4 obj) {
+		d = obj;
+	}
+
+	/**
+	 * Set 5th object
+	 * 
+	 * @param obj 5th object
+	 */
+	public void set5(T5 obj) {
+		e = obj;
+	}
+
+	/**
+	 * Set 6th object
+	 * 
+	 * @param obj 6th object
+	 */
+	public void set6(T6 obj) {
+		f = obj;
+	}
+
+	/**
+	 * Set 7th object
+	 * 
+	 * @param obj 6th object
+	 */
+	public void set7(T7 obj) {
+		g = obj;
+	}
+
+	@Override
+	public boolean equals(Object obj) {
+		if (obj == null) {
+			return false;
+		}
+
+		if (!this.getClass().equals(obj.getClass())) {
+			return false;
+		}
+
+		Struct7<?, ?, ?, ?, ?, ?, ?> t = (Struct7<?, ?, ?, ?, ?, ?, ?>) obj;
+
+		return Calc.areObjectsEqual(a, t.a) && Calc.areObjectsEqual(b, t.b) && Calc.areObjectsEqual(c, t.c) && Calc.areObjectsEqual(d, t.d)
+				&& Calc.areObjectsEqual(e, t.e) && Calc.areObjectsEqual(f, t.f) && Calc.areObjectsEqual(g, t.g);
+
+	}
+
+	@Override
+	public int hashCode() {
+		int hash = 0;
+		hash += (a == null ? 0 : a.hashCode());
+		hash += (b == null ? 0 : b.hashCode());
+		hash += (c == null ? 0 : c.hashCode());
+		hash += (d == null ? 0 : d.hashCode());
+		hash += (e == null ? 0 : e.hashCode());
+		hash += (f == null ? 0 : f.hashCode());
+		hash += (g == null ? 0 : g.hashCode());
+		return hash;
+	}
+
+	@Override
+	public String toString() {
+		return "STRUCT {" + a + "," + b + "," + c + "," + d + "," + e + "," + f + "," + g + "}";
+	}
+
+}

src/com/porcupine/struct/Struct8.java

@@ -0,0 +1,377 @@
+package com.porcupine.struct;
+
+
+import com.porcupine.math.Calc;
+
+
+/**
+ * Structure of 7 objects.
+ * 
+ * @author MightyPork
+ * @copy (c) 2012
+ * @param <T1> 1st object class
+ * @param <T2> 2nd object class
+ * @param <T3> 3rd object class
+ * @param <T4> 4th object class
+ * @param <T5> 5th object class
+ * @param <T6> 6th object class
+ * @param <T7> 7th object class
+ * @param <T8> 8th object class
+ */
+public class Struct8<T1, T2, T3, T4, T5, T6, T7, T8> {
+	/**
+	 * 1st object
+	 */
+	public T1 a;
+
+	/**
+	 * 2nd object
+	 */
+	public T2 b;
+
+	/**
+	 * 3rd object
+	 */
+	public T3 c;
+
+	/**
+	 * 4th object
+	 */
+	public T4 d;
+
+	/**
+	 * 5th object
+	 */
+	public T5 e;
+
+	/**
+	 * 6th object
+	 */
+	public T6 f;
+
+	/**
+	 * 7th object
+	 */
+	public T7 g;
+
+	/**
+	 * 8th object
+	 */
+	public T8 h;
+
+	/**
+	 * Make structure of 4 objects
+	 * 
+	 * @param objA 1st object
+	 * @param objB 2nd object
+	 * @param objC 3rd object
+	 * @param objD 4th object
+	 * @param objE 5th object
+	 * @param objF 6th object
+	 * @param objG 7th object
+	 * @param objH 8th object
+	 */
+	public Struct8(T1 objA, T2 objB, T3 objC, T4 objD, T5 objE, T6 objF, T7 objG, T8 objH) {
+		a = objA;
+		b = objB;
+		c = objC;
+		d = objD;
+		e = objE;
+		f = objF;
+		g = objG;
+		h = objH;
+	}
+
+	/**
+	 * @return 1st object
+	 */
+	public T1 getA() {
+		return a;
+	}
+
+	/**
+	 * @return 2nd object
+	 */
+	public T2 getB() {
+		return b;
+	}
+
+	/**
+	 * @return 3rd object
+	 */
+	public T3 getC() {
+		return c;
+	}
+
+	/**
+	 * @return 4th object
+	 */
+	public T4 getD() {
+		return d;
+	}
+
+	/**
+	 * @return 5th object
+	 */
+	public T5 getE() {
+		return e;
+	}
+
+	/**
+	 * @return 6th object
+	 */
+	public T6 getF() {
+		return f;
+	}
+
+	/**
+	 * @return 7th object
+	 */
+	public T7 getG() {
+		return g;
+	}
+
+	/**
+	 * @return 8th object
+	 */
+	public T8 getH() {
+		return h;
+	}
+
+	/**
+	 * @return 1st object
+	 */
+	public T1 get1() {
+		return a;
+	}
+
+	/**
+	 * @return 2nd object
+	 */
+	public T2 get2() {
+		return b;
+	}
+
+	/**
+	 * @return 3rd object
+	 */
+	public T3 get3() {
+		return c;
+	}
+
+	/**
+	 * @return 4th object
+	 */
+	public T4 get4() {
+		return d;
+	}
+
+	/**
+	 * @return 5th object
+	 */
+	public T5 get5() {
+		return e;
+	}
+
+	/**
+	 * @return 6th object
+	 */
+	public T6 get6() {
+		return f;
+	}
+
+	/**
+	 * @return 7th object
+	 */
+	public T7 get7() {
+		return g;
+	}
+
+	/**
+	 * @return 8th object
+	 */
+	public T8 get8() {
+		return h;
+	}
+
+	/**
+	 * Set 1st object
+	 * 
+	 * @param obj 1st object
+	 */
+	public void setA(T1 obj) {
+		a = obj;
+	}
+
+	/**
+	 * Set 2nd object
+	 * 
+	 * @param obj 2nd object
+	 */
+	public void setB(T2 obj) {
+		b = obj;
+	}
+
+	/**
+	 * Set 3rd object
+	 * 
+	 * @param obj 3rd object
+	 */
+	public void setC(T3 obj) {
+		c = obj;
+	}
+
+	/**
+	 * Set 4th object
+	 * 
+	 * @param obj 4th object
+	 */
+	public void setD(T4 obj) {
+		d = obj;
+	}
+
+	/**
+	 * Set 5th object
+	 * 
+	 * @param obj 5th object
+	 */
+	public void setE(T5 obj) {
+		e = obj;
+	}
+
+	/**
+	 * Set 6th object
+	 * 
+	 * @param obj 6th object
+	 */
+	public void setF(T6 obj) {
+		f = obj;
+	}
+
+	/**
+	 * Set 7th object
+	 * 
+	 * @param obj 6th object
+	 */
+	public void setG(T7 obj) {
+		g = obj;
+	}
+
+	/**
+	 * Set 8th object
+	 * 
+	 * @param obj 6th object
+	 */
+	public void setH(T8 obj) {
+		h = obj;
+	}
+
+	/**
+	 * Set 1st object
+	 * 
+	 * @param obj 1st object
+	 */
+	public void set1(T1 obj) {
+		a = obj;
+	}
+
+	/**
+	 * Set 2nd object
+	 * 
+	 * @param obj 2nd object
+	 */
+	public void set2(T2 obj) {
+		b = obj;
+	}
+
+	/**
+	 * Set 3rd object
+	 * 
+	 * @param obj 3rd object
+	 */
+	public void set3(T3 obj) {
+		c = obj;
+	}
+
+	/**
+	 * Set 4th object
+	 * 
+	 * @param obj 4th object
+	 */
+	public void set4(T4 obj) {
+		d = obj;
+	}
+
+	/**
+	 * Set 5th object
+	 * 
+	 * @param obj 5th object
+	 */
+	public void set5(T5 obj) {
+		e = obj;
+	}
+
+	/**
+	 * Set 6th object
+	 * 
+	 * @param obj 6th object
+	 */
+	public void set6(T6 obj) {
+		f = obj;
+	}
+
+	/**
+	 * Set 7th object
+	 * 
+	 * @param obj 6th object
+	 */
+	public void set7(T7 obj) {
+		g = obj;
+	}
+
+	/**
+	 * Set 8th object
+	 * 
+	 * @param obj 6th object
+	 */
+	public void set8(T8 obj) {
+		h = obj;
+	}
+
+	@Override
+	public boolean equals(Object obj) {
+		if (obj == null) {
+			return false;
+		}
+
+		if (!this.getClass().equals(obj.getClass())) {
+			return false;
+		}
+
+		Struct8<?, ?, ?, ?, ?, ?, ?, ?> t = (Struct8<?, ?, ?, ?, ?, ?, ?, ?>) obj;
+
+		return Calc.areObjectsEqual(a, t.a) && Calc.areObjectsEqual(b, t.b) && Calc.areObjectsEqual(c, t.c) && Calc.areObjectsEqual(d, t.d)
+				&& Calc.areObjectsEqual(e, t.e) && Calc.areObjectsEqual(f, t.f) && Calc.areObjectsEqual(g, t.g) && Calc.areObjectsEqual(h, t.h);
+
+	}
+
+	@Override
+	public int hashCode() {
+		int hash = 0;
+		hash += (a == null ? 0 : a.hashCode());
+		hash += (b == null ? 0 : b.hashCode());
+		hash += (c == null ? 0 : c.hashCode());
+		hash += (d == null ? 0 : d.hashCode());
+		hash += (e == null ? 0 : e.hashCode());
+		hash += (f == null ? 0 : f.hashCode());
+		hash += (g == null ? 0 : g.hashCode());
+		hash += (h == null ? 0 : h.hashCode());
+		return hash;
+	}
+
+	@Override
+	public String toString() {
+		return "STRUCT {" + a + "," + b + "," + c + "," + d + "," + e + "," + f + "," + g + "," + h + "}";
+	}
+
+}

src/com/porcupine/time/FpsMeter.java

@@ -0,0 +1,54 @@
+package com.porcupine.time;
+
+
+/**
+ * Class for counting FPS in games.<br>
+ * This class can be used also as a simple frequency meter - output is in Hz.
+ * 
+ * @author MightyPork
+ */
+public class FpsMeter {
+
+	private long frames = 0;
+	private long drops = 0;
+	private long lastTimeMillis = System.currentTimeMillis();
+	private long lastSecFPS = 0;
+	private long lastSecDrop = 0;
+
+	/**
+	 * @return current second's FPS
+	 */
+	public long getFPS() {
+		return lastSecFPS;
+	}
+
+	/**
+	 * Notification that frame was rendered
+	 */
+	public void frame() {
+		if (System.currentTimeMillis() - lastTimeMillis > 1000) {
+			lastSecFPS = frames;
+			lastSecDrop = drops;
+			frames = 0;
+			drops = 0;
+			lastTimeMillis = System.currentTimeMillis();
+		}
+		frames++;
+	}
+
+	/**
+	 * Notification that some frames have been dropped
+	 * 
+	 * @param dropped dropped frames
+	 */
+	public void drop(int dropped) {
+		drops += dropped;
+	}
+
+	/**
+	 * @return current second's dropped frames
+	 */
+	public long getDropped() {
+		return lastSecDrop;
+	}
+}

src/com/porcupine/time/Timer.java

@@ -0,0 +1,130 @@
+package com.porcupine.time;
+
+
+import com.porcupine.math.Calc;
+
+
+/**
+ * Precise game timer
+ */
+public class Timer {
+
+	/**
+	 * Ticks elapsed since last updateTimer().<br>
+	 * Used to count how many frames to skip.
+	 */
+	public int ticksMissed;
+
+
+	/** Speed multiplier. */
+	public float timerSpeedMultiplier;
+
+
+	/**
+	 * How much of the next tick has already elapsed.
+	 */
+	public float renderDeltaTime;
+
+
+	/**
+	 * How many update ticks are to be run since last time
+	 * 
+	 * @return update ticks needed
+	 */
+	public int getTicksMissed() {
+		return ticksMissed;
+	}
+
+	/**
+	 * Get render delta time, 0-1
+	 * 
+	 * @return delta time
+	 */
+	public double getDeltaTime() {
+		return renderDeltaTime;
+	}
+
+	/**
+	 * @return speed multiplier
+	 */
+	public double getSpeed() {
+		return timerSpeedMultiplier;
+	}
+
+	/**
+	 * Set speed multiplier
+	 * 
+	 * @param speed new speed multiplier
+	 */
+	public void setSpeed(double speed) {
+		timerSpeedMultiplier = (float) speed;
+	}
+
+
+
+	private float ticksPerSecond;
+	private double lastUpdateSecs;
+	private long lastUpdateMillis;
+	private long lastSyncMillis;
+	private long syncCounter;
+	private double timeSyncAdjustment;
+
+
+	/**
+	 * init timer
+	 * 
+	 * @param ticksPerSecond logic update ticks per second
+	 */
+	public Timer(float ticksPerSecond) {
+		timerSpeedMultiplier = 1.0F;
+		renderDeltaTime = 0.0F;
+		timeSyncAdjustment = 1.0D;
+		this.ticksPerSecond = ticksPerSecond;
+
+		lastUpdateMillis = System.currentTimeMillis();
+		lastSyncMillis = System.nanoTime() / 1000000;
+	}
+
+	/**
+	 * Updates all fields of the Timer using the current time
+	 */
+	public void update() {
+		long l = System.currentTimeMillis();
+		long deltaMillis = l - lastUpdateMillis;
+		long millis = System.nanoTime() / 1000000;
+		double secs = millis / 1000D;
+
+		if (deltaMillis > 1000L) {
+			lastUpdateSecs = secs;
+		} else if (deltaMillis < 0L) {
+			lastUpdateSecs = secs;
+		} else {
+			syncCounter += deltaMillis;
+
+			if (syncCounter > 1000L) {
+				long d1 = millis - lastSyncMillis;
+				double d2 = (double) syncCounter / (double) d1;
+				timeSyncAdjustment += (d2 - timeSyncAdjustment) * 0.2D;
+				lastSyncMillis = millis;
+				syncCounter = 0L;
+			}
+
+			if (syncCounter < 0L) {
+				lastSyncMillis = millis;
+			}
+		}
+
+		lastUpdateMillis = l;
+
+		double delta = (secs - lastUpdateSecs) * timeSyncAdjustment;
+		lastUpdateSecs = secs;
+
+		delta = Calc.clampd(delta, 0, 1);
+
+		renderDeltaTime += delta * timerSpeedMultiplier * ticksPerSecond;
+		ticksMissed = (int) renderDeltaTime;
+		renderDeltaTime -= ticksMissed;
+
+		ticksMissed = Calc.clampi(ticksMissed, 0, 10);
+	}
+}

src/com/porcupine/util/FileSuffixFilter.java

@@ -0,0 +1,36 @@
+package com.porcupine.util;
+
+
+import java.io.File;
+import java.io.FileFilter;
+
+
+/**
+ * File filter for certain suffixes
+ * 
+ * @author MightyPork
+ */
+public class FileSuffixFilter implements FileFilter {
+
+	/** Array of allowed suffixes */
+	private String[] suffixes = null;
+
+	/**
+	 * Suffix filter
+	 * 
+	 * @param suffixes var-args allowed suffixes, case insensitive
+	 */
+	public FileSuffixFilter(String... suffixes) {
+		this.suffixes = suffixes;
+	}
+
+	@Override
+	public boolean accept(File pathname) {
+		//System.out.println(pathname);
+		for (String suffix : suffixes) {
+			return pathname.isFile() && pathname.getName().toLowerCase().trim().endsWith(suffix.toLowerCase().trim());
+		}
+		return false;
+	}
+
+}

src/com/porcupine/util/FileUtils.java

@@ -0,0 +1,182 @@
+package com.porcupine.util;
+
+
+import java.io.DataInputStream;
+import java.io.File;
+import java.io.FileFilter;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import net.spritegen.util.Log;
+
+
+/**
+ * Utilities for filesystem
+ * 
+ * @author MightyPork
+ */
+public class FileUtils {
+
+	private enum EnumOS {
+		linux, solaris, windows, macos, unknown;
+	}
+
+	/**
+	 * get working directory path ending with slash
+	 * 
+	 * @param dirname name of the directory, dot will be added automatically
+	 * @return File path to the folder
+	 */
+	public static File getAppDir(String dirname) {
+		String s = System.getProperty("user.home", ".");
+		File file;
+
+		switch (getOs()) {
+			case linux:
+			case solaris:
+				file = new File(s, "." + dirname + '/');
+				break;
+
+			case windows:
+				String s1 = System.getenv("APPDATA");
+
+				if (s1 != null) {
+					file = new File(s1, "." + dirname + '/');
+				} else {
+					file = new File(s, "." + dirname + '/');
+				}
+
+				break;
+
+			case macos:
+				file = new File(s, "Library/Application Support/" + dirname);
+				break;
+
+			default:
+				file = new File(s, dirname + "/");
+				break;
+		}
+
+		if (!file.exists() && !file.mkdirs()) {
+			throw new RuntimeException((new StringBuilder()).append("The working directory could not be created: ").append(file).toString());
+		} else {
+			return file;
+		}
+	}
+
+	private static EnumOS getOs() {
+		String s = System.getProperty("os.name").toLowerCase();
+
+		if (s.contains("win")) {
+			return EnumOS.windows;
+		}
+
+		if (s.contains("mac")) {
+			return EnumOS.macos;
+		}
+
+		if (s.contains("solaris")) {
+			return EnumOS.solaris;
+		}
+
+		if (s.contains("sunos")) {
+			return EnumOS.solaris;
+		}
+
+		if (s.contains("linux")) {
+			return EnumOS.linux;
+		}
+
+		if (s.contains("unix")) {
+			return EnumOS.linux;
+		} else {
+			return EnumOS.unknown;
+		}
+	}
+
+	/**
+	 * Get files in a folder (create folder if needed)
+	 * 
+	 * @param dir folder
+	 * @param filter file filter
+	 * @return list of files
+	 */
+	public static List<File> listFolder(File dir, FileFilter filter) {
+		try {
+			dir.mkdir();
+		} catch (RuntimeException e) {
+			Log.e("Error creating folder " + dir, e);
+		}
+
+		List<File> list = new ArrayList<File>();
+
+		try {
+			for (File f : dir.listFiles(filter)) {
+				list.add(f);
+			}
+		} catch (Exception e) {
+			Log.e("Error listing folder " + dir, e);
+		}
+
+		return list;
+	}
+
+	/**
+	 * Get files in a folder (create folder if needed)
+	 * 
+	 * @param dir folder
+	 * @return list of files
+	 */
+	public static List<File> listFolder(File dir) {
+		return listFolder(dir, null);
+	}
+
+	/**
+	 * Remove extension.
+	 * 
+	 * @param file file
+	 * @return filename without extension
+	 */
+	public static String removeExtension(File file) {
+		return removeExtension(file.getName());
+	}
+
+	/**
+	 * Remove extension.
+	 * 
+	 * @param filename
+	 * @return filename without extension
+	 */
+	public static String removeExtension(String filename) {
+		String[] parts = filename.split("[.]");
+		String out = "";
+		for (int i = 0; i < parts.length - 1; i++) {
+			out += parts[i];
+		}
+
+		return out;
+	}
+
+	/**
+	 * Read entire file to a string.
+	 * 
+	 * @param file file
+	 * @return file contents
+	 * @throws IOException
+	 */
+	public static String fileToString(File file) throws IOException {
+		String result = null;
+		DataInputStream in = null;
+
+		byte[] buffer = new byte[(int) file.length()];
+		in = new DataInputStream(new FileInputStream(file));
+		in.readFully(buffer);
+		result = new String(buffer);
+		in.close();
+
+		return result;
+	}
+
+}

src/com/porcupine/util/StringUtils.java

@@ -0,0 +1,104 @@
+package com.porcupine.util;
+
+
+/**
+ * General purpose string utilities
+ * 
+ * @author MightyPork
+ */
+public class StringUtils {
+
+	/**
+	 * Get if string is in array
+	 * 
+	 * @param needle checked string
+	 * @param case_sensitive case sensitive comparision
+	 * @param haystack array of possible values
+	 * @return is in array
+	 */
+	public static boolean isInArray(String needle, boolean case_sensitive, String... haystack) {
+		if (case_sensitive) {
+			for (String s : haystack) {
+				if (needle.equals(s)) return true;
+			}
+			return false;
+		} else {
+			for (String s : haystack) {
+				if (needle.equalsIgnoreCase(s)) return true;
+			}
+			return false;
+		}
+	}
+
+	/**
+	 * Repeat a string
+	 * 
+	 * @param repeated string
+	 * @param count
+	 * @return output
+	 */
+	public static String repeat(String repeated, int count) {
+		String s = "";
+		for (int i = 0; i < count; i++)
+			s += repeated;
+		return s;
+	}
+
+	/**
+	 * convert string to a same-length sequence of # marks
+	 * 
+	 * @param password password
+	 * @return encoded
+	 */
+	public static String passwordify(String password) {
+		return passwordify(password, "#");
+	}
+
+
+	/**
+	 * convert string to a same-length sequence of chars
+	 * 
+	 * @param password password
+	 * @param replacing character used in output
+	 * @return encoded
+	 */
+	public static String passwordify(String password, String replacing) {
+		return repeat(replacing, password.length());
+	}
+
+	/**
+	 * Get ordinal version of numbers (1 = 1st, 5 = 5th etc.)
+	 * 
+	 * @param number number
+	 * @return ordinal, string
+	 */
+	public static String numberToOrdinal(int number) {
+		if (number % 100 < 4 || number % 100 > 13) {
+			if (number % 10 == 1) return number + "st";
+			if (number % 10 == 2) return number + "nd";
+			if (number % 10 == 3) return number + "rd";
+		}
+		return number + "th";
+	}
+
+	/**
+	 * Format number with thousands separated by a dot.
+	 * 
+	 * @param number number
+	 * @return string 12.004.225
+	 */
+	public static String formatInt(long number) {
+		String num = number + "";
+		String out = "";
+		String dot = ".";
+		int cnt = 1;
+		for (int i = num.length() - 1; i >= 0; i--) {
+			out = num.charAt(i) + out;
+			if (cnt % 3 == 0 && i > 0) out = dot + out;
+			cnt++;
+		}
+
+		return out;
+	}
+
+}

src/com/porcupine/util/VarargsParser.java

@@ -0,0 +1,51 @@
+package com.porcupine.util;
+
+
+import java.util.LinkedHashMap;
+
+
+/**
+ * Varargs parser<br>
+ * Converts an array of repeated "key, value" pairs to a LinkedHashMap.<br>
+ * example:
+ * 
+ * <pre>
+ * Object[] array = { &quot;one&quot;, 1, &quot;two&quot;, 4, &quot;three&quot;, 9, &quot;four&quot;, 16 };
+ * Map&lt;String, Integer&gt; args = new VarargsParser&lt;String, Integer&gt;().parse(array);
+ * </pre>
+ * 
+ * @author MightyPork
+ * @param <K> Type for Map keys
+ * @param <V> Type for Map values
+ */
+public class VarargsParser<K, V> {
+	/**
+	 * Parse array of vararg key, value pairs to a LinkedHashMap.
+	 * 
+	 * @param args varargs
+	 * @return LinkedHashMap
+	 * @throws ClassCastException in case of incompatible type in the array
+	 * @throws IllegalArgumentException in case of invalid array length (odd)
+	 */
+	@SuppressWarnings("unchecked")
+	public LinkedHashMap<K, V> parse(Object... args) throws ClassCastException, IllegalArgumentException {
+		LinkedHashMap<K, V> attrs = new LinkedHashMap<K, V>();
+
+		if (args.length % 2 != 0) {
+			throw new IllegalArgumentException("Odd number of elements in varargs map!");
+		}
+
+		K key = null;
+		for (Object o : args) {
+			if (key == null) {
+				if (o == null) throw new RuntimeException("Key cannot be NULL in varargs map.");
+				key = (K) o;
+			} else {
+				attrs.put(key, (V) o);
+				key = null;
+			}
+		}
+
+		return attrs;
+	}
+}

src/net/spritegen/App.java

@@ -0,0 +1,368 @@
+package net.spritegen;
+
+
+import static org.lwjgl.opengl.GL11.*;
+
+import java.awt.Component;
+import java.awt.Dimension;
+import java.awt.Font;
+import java.awt.Insets;
+import java.awt.Toolkit;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.io.File;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import javax.swing.*;
+
+import net.spritegen.gui.Screen;
+import net.spritegen.gui.ScreenSprites;
+import net.spritegen.util.Log;
+import net.spritegen.util.Utils;
+
+import org.lwjgl.LWJGLException;
+import org.lwjgl.input.Keyboard;
+import org.lwjgl.input.Mouse;
+import org.lwjgl.openal.AL;
+import org.lwjgl.opengl.Display;
+import org.lwjgl.opengl.DisplayMode;
+import org.lwjgl.opengl.PixelFormat;
+
+import com.porcupine.coord.Coord;
+import com.porcupine.time.FpsMeter;
+import com.porcupine.time.Timer;
+import com.porcupine.util.FileUtils;
+
+
+
+/**
+ * SECTOR main class
+ * 
+ * @author MightyPork
+ */
+public class App {
+
+	/** instance */
+	public static App inst;
+
+	/** current screen */
+	public static Screen screen = null;
+
+	public static String[] args;
+
+	/**
+	 * @param args
+	 */
+	public static void main(String[] args) {
+
+		App.args = args;
+
+		inst = new App();
+		try {
+			inst.start();
+		} catch (Throwable t) {
+			showCrashReport(t);
+		}
+
+	}
+
+	/**
+	 * Show crash report dialog with error stack trace.
+	 * 
+	 * @param error
+	 */
+	public static void showCrashReport(Throwable error) {
+
+
+		Log.e(error);
+
+		try {
+			inst.deinit();
+		} catch (Throwable t) {}
+
+		JFrame f = new JFrame("SpriteGen has crashed!");
+		f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+
+		f.getContentPane().setLayout(new BoxLayout(f.getContentPane(), BoxLayout.Y_AXIS));
+
+
+		StringWriter sw = new StringWriter();
+		error.printStackTrace(new PrintWriter(sw));
+		String exceptionAsString = sw.toString();
+
+		String errorLogAsString = "Not found.";
+		String wholeLogAsString = "Not found.";
+
+		try {
+			wholeLogAsString = FileUtils.fileToString(Utils.getGameSubfolder(Constants.FILE_LOG));
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+
+		try {
+			errorLogAsString = FileUtils.fileToString(Utils.getGameSubfolder(Constants.FILE_LOG_E));
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+
+		String txt = "";
+		txt = "";
+		txt += "SPRITE-GEN HAS CRASHED!\n";
+		txt += "\n";
+		txt += "Please report it to MightyPork:\n";
+		txt += "\tE-mail: ondra@ondrovo.com\n";
+		txt += "\tTwitter: #MightyPork (post log via pastebin.com)\n";
+		txt += "\n";
+		txt += "\n";
+		txt += "\n";
+		txt += "### STACK TRACE ###\n";
+		txt += "\n";
+		txt += exceptionAsString + "\n";
+		txt += "\n";
+		txt += "\n";
+		txt += "### ERROR LOG ###\n";
+		txt += "\n";
+		txt += errorLogAsString + "\n";
+		txt += "\n";
+		txt += "\n";
+		txt += "### FULL LOG ###\n";
+		txt += "\n";
+		txt += wholeLogAsString + "\n";
+
+
+		// Create Scrolling Text Area in Swing
+		JTextArea ta = new JTextArea(txt, 20, 70);
+		ta.setFont(new Font("Courier", 0, 16));
+		ta.setMargin(new Insets(10, 10, 10, 10));
+		ta.setEditable(false);
+		ta.setLineWrap(false);
+		JScrollPane sbrText = new JScrollPane(ta);
+		sbrText.setBorder(BorderFactory.createCompoundBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10), BorderFactory.createEtchedBorder()));
+		sbrText.setWheelScrollingEnabled(true);
+		sbrText.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
+		sbrText.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
+
+
+		// Create Quit Button
+		JButton btnQuit = new JButton("Quit");
+		btnQuit.setAlignmentX(Component.CENTER_ALIGNMENT);
+
+		btnQuit.addActionListener(new ActionListener() {
+			@Override
+			public void actionPerformed(ActionEvent e) {
+				System.exit(0);
+			}
+		});
+
+		JPanel buttonPane = new JPanel();
+		buttonPane.setLayout(new BoxLayout(buttonPane, BoxLayout.LINE_AXIS));
+		buttonPane.setBorder(BorderFactory.createEmptyBorder(0, 10, 10, 10));
+		buttonPane.add(btnQuit);
+
+
+		f.getContentPane().add(sbrText);
+		f.getContentPane().add(buttonPane);
+
+		// Close when the close button is clicked
+		f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+
+
+
+		//Display Frame
+		f.pack(); // Adjusts frame to size of components
+
+		Dimension dim = Toolkit.getDefaultToolkit().getScreenSize();
+		f.setLocation((dim.width - f.getWidth()) / 2, (dim.height - f.getHeight()) / 2);
+
+		f.setVisible(true);
+
+		while (true) {}
+	}
+
+	public static File modelFile;
+
+	public static File modelDir;
+
+	public static SetupLoader cfg;
+
+
+
+	private void deinit() {
+		Display.destroy();
+		Mouse.destroy();
+		Keyboard.destroy();
+		AL.destroy();
+	}
+
+	/**
+	 * Quit to OS
+	 */
+	public void exit() {
+		deinit();
+		System.exit(0);
+	}
+
+	/**
+	 * Get current screen
+	 * 
+	 * @return screen
+	 */
+	public Screen getScreen() {
+		return screen;
+	}
+
+	/**
+	 * Get screen size
+	 * 
+	 * @return size
+	 */
+	public Coord getSize() {
+		return new Coord(Display.getWidth(), Display.getHeight());
+	}
+
+// INIT
+
+	private void init() throws LWJGLException {
+
+		Log.setPrintToStdout(true);
+
+		if (args.length == 0) {
+			System.out.println("Args: folder/model.obj\n" +
+					"SpriteGen operates in .spritegen folder.\n" +
+					"There is a folder \".spritegen/models\", which contains subfolders with your models.\n" +
+					"\n" +
+					"Spritesheet settings are found in \"models/modelDir/config.ini\". This file will\n" +
+					"be generated while creating first spritesheet from that folder.\n" +
+					"\n" +
+					"Output PNG image will be saved in \"models/modelDir/out\".\n" +
+					"\n" +
+					"Example usage: java -jar spritegen.jar turtle/turtle.obj");
+		}
+
+		File dir = Utils.getGameSubfolder("models");
+		dir.mkdirs();
+
+		if (args.length == 0) {
+			exit();
+			return;
+		}
+
+		modelFile = Utils.getGameSubfolder("models/" + args[0]);
+
+		modelDir = modelFile.getParentFile();
+		File out = new File(modelDir,"out");
+		out.mkdirs();
+
+		cfg = new SetupLoader(modelDir);
+		Log.i("Output image size: " + cfg.img_size + "x" + cfg.img_size);
+
+		// init display
+		Display.setDisplayMode(new DisplayMode(ScreenSprites.FRAME_SIZE, ScreenSprites.FRAME_SIZE));
+		Display.setResizable(false);
+		Display.setVSyncEnabled(true);
+		Display.setTitle(Constants.TITLEBAR);
+
+		int samples = cfg.samples;
+		while (true) {
+			try {
+				Display.create(new PixelFormat().withSamples(samples).withAlphaBits(4));
+				Log.i("Created display with " + samples + "x multisampling.");
+				break;
+			} catch (LWJGLException e) {
+				Log.w("Failed to create display with " + samples + "x multisampling, trying " + samples / 2 + "x.");
+				if (samples >= 2) {
+					samples /= 2;
+				} else if (samples == 1) {
+					samples = 0;
+				} else if (samples == 0) {
+					Log.e("Could not create display.", e);
+					exit();
+				}
+			}
+		}
+
+		Mouse.create();
+		Keyboard.create();
+		Keyboard.enableRepeatEvents(false);
+
+		StaticInitializer.initOnStartup();
+	}
+
+	private void start() throws LWJGLException {
+
+		Log.enable(true);
+		Log.setPrintToStdout(true);
+
+		init();
+		mainLoop();
+		deinit();
+	}
+
+// INIT END
+
+
+// UPDATE LOOP
+
+	/** fps meter */
+	public FpsMeter fpsMeter;
+
+	/** timer */
+	public Timer timer;
+
+	private int timerAfterResize = 0;
+
+	private void mainLoop() {
+		screen = new ScreenSprites();
+
+		screen.init();
+
+		timer = new Timer(Constants.FPS_UPDATE);
+		fpsMeter = new FpsMeter();
+
+		while (!Display.isCloseRequested()) {
+			glLoadIdentity();
+			glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+			int j = timer.ticksMissed;
+
+			if (j > 1) fpsMeter.drop(j - 1);
+			timer.update();
+
+			for (int i = 0; i < j; i++) {
+				screen.update();
+			}
+
+			fpsMeter.frame();
+			float delta = timer.renderDeltaTime;
+			screen.render(delta);
+			Display.update();
+
+			try {
+				Display.sync(Constants.FPS_RENDER);
+			} catch (Throwable t) {
+				Log.e("Your graphics card driver does not support fullscreen properly.", t);
+			}
+		}
+	}
+
+// UPDATE LOOP END
+
+	/**
+	 * Replace screen
+	 * 
+	 * @param newScreen new screen
+	 */
+	public void replaceScreen(Screen newScreen) {
+		screen = newScreen;
+		screen.init();
+	}
+
+	/**
+	 * Replace screen, don't init it
+	 * 
+	 * @param newScreen new screen
+	 */
+	public void replaceScreenNoInit(Screen newScreen) {
+		screen = newScreen;
+	}
+}

src/net/spritegen/Constants.java

@@ -0,0 +1,57 @@
+package net.spritegen;
+
+
+import net.spritegen.gui.ScreenSprites;
+
+import com.porcupine.coord.Coord;
+
+
+/**
+ * Sector constants
+ * 
+ * @author MightyPork
+ */
+@SuppressWarnings("javadoc")
+public class Constants {
+
+	// STRINGS
+	public static final String TITLEBAR = "SpriteGen";
+
+	// FILES+DIRS
+	public static final String APP_DIR = "spritegen";
+
+	public static final String FILE_LOG = "Runtime.log";
+	public static final String FILE_LOG_E = "Error.log";
+
+	// TIMING
+	public static final int FPS_UPDATE = 55;
+	public static final double SPEED_MUL = 100D / FPS_UPDATE;
+
+	public static final int FPS_RENDER = 200; // max
+
+
+//	// INITIAL WINDOW SIZE (later loaded from config file)
+//	public static final int WINDOW_SIZE_X = ScreenSprites.FRAME_SIZE; //1024; FIXME
+//	public static final int WINDOW_SIZE_Y = ScreenSprites.FRAME_SIZE; //768; FIXME
+
+	
+//
+//	// LIGHT
+//	public static final float LIGHT_AMBIENT = 1F;
+//	public static final float LIGHT_SPECULAR = 0.5F;
+//	public static final float LIGHT_DIFFUSE = 1F;
+//	public static final Coord LIGHT_POS = new Coord(0, 3, 3);
+//	public static final float LIGHT_ATTR = 1;
+//
+//	public static final float SCENE_MAT_AMBIENT = 1F;
+//	public static final float SCENE_MAT_SPECULAR = 1F;
+//	public static final float SCENE_MAT_DIFFUSE = 1F;
+
+	// CAMERA & SCENE
+	public static final Coord CAM_POS = new Coord(0, 0, 5);
+	public static final Coord CAM_LOOKAT = new Coord(0, 0, 0);
+	public static final float CAM_ANGLE = 45;
+	public static final double CAM_NEAR = 0.1;
+	public static final double FOG_START = 80;
+	public static final double CAM_FAR = 100;
+}

src/net/spritegen/SetupLoader.java

@@ -0,0 +1,90 @@
+package net.spritegen;
+
+import java.io.File;
+
+import net.spritegen.util.Utils;
+
+import com.porcupine.coord.Coord;
+import com.porcupine.util.PropertyManager;
+
+public class SetupLoader {
+
+	public PropertyManager cfg;
+	
+	public int img_size;
+
+	public int samples;
+	public double render_wobble_y;
+	public double render_wobble_z;
+	public double render_rotate_x;
+	public double renmder_move_y;
+	public double render_move_x;
+	public double render_scale;
+	
+	public Coord light_pos;
+	public double light_attr;
+	public double light_diffuse;
+	public double light_specular;
+	public double light_ambient;
+
+	public double mat_diffuse;
+	public double mat_specular;
+	public double mat_ambient;
+	
+	public SetupLoader(File dir) {
+		dir.mkdirs();
+		File file = new File(dir,"config.ini");
+		
+		cfg = new PropertyManager(file.getAbsolutePath(), "Spritesheet setup file");
+		
+		cfg.putInteger("output.size", 512, "Output image size");
+		cfg.putDouble("render.walk.wobble_x_angle_max", 6, "Maximal wobble angle for walking (rotate around Y)");
+		cfg.putDouble("render.walk.wobble_z_angle_max", 0, "Maximal wobble angle for walking (rotate around Z)");
+		cfg.putDouble("render.rotate_x", 60, "Rotate around X axis to get 2D or 2.5D perspective");
+		cfg.putDouble("render.move_y", 0, "Y offset (for centering)");
+		cfg.putDouble("render.move_x", 0, "X move (for centering)");
+		cfg.putDouble("render.scale", 1, "Render scale");
+		cfg.putInteger("render.multisampling", 4, "Multisampling (smoothing) level, values: 0,1,2,4,8");
+		
+		cfg.putDouble("render.material.ambient", 1, "Material property: ambient");
+		cfg.putDouble("render.material.specular", 1, "Material property: specular");
+		cfg.putDouble("render.material.diffuse", 1, "Material property: diffuse");
+		
+		cfg.putDouble("render.light.ambient", 1, "Light property: ambient");
+		cfg.putDouble("render.light.specular", 1, "Light property: specular");
+		cfg.putDouble("render.light.diffuse", 1, "Light property: diffuse");
+		cfg.putDouble("render.light.attribute", 1, "Light property: attribute");
+		
+		cfg.putDouble("render.light.x", 0, "Light pos: X");
+		cfg.putDouble("render.light.y", 3, "Light pos: Y");
+		cfg.putDouble("render.light.z", 3, "Light pos: Z");
+		
+		cfg.apply();
+		
+		
+		img_size = cfg.getInt("output.size");
+
+		render_wobble_y = cfg.getDouble("render.walk.wobble_x_angle_max");
+		render_wobble_z = cfg.getDouble("render.walk.wobble_z_angle_max");
+		render_rotate_x = cfg.getDouble("render.rotate_x");
+		renmder_move_y = cfg.getDouble("render.move_y");
+		render_move_x = cfg.getDouble("render.move_x");
+		render_scale = cfg.getDouble("render.scale");
+		samples = cfg.getInt("render.multisampling");
+		
+		mat_ambient = cfg.getDouble("render.material.ambient");
+		mat_specular = cfg.getDouble("render.material.specular");
+		mat_diffuse = cfg.getDouble("render.material.diffuse");
+		
+		light_ambient = cfg.getDouble("render.light.ambient");
+		light_specular = cfg.getDouble("render.light.specular");
+		light_diffuse = cfg.getDouble("render.light.diffuse");
+		light_attr = cfg.getDouble("render.light.attribute");
+		
+		light_pos = new Coord(cfg.getDouble("render.light.x"),
+		cfg.getDouble("render.light.y"),
+		cfg.getDouble("render.light.z"));
+		
+	}
+
+}