[DEV] add some feature

.classpath

@@ -11,11 +11,6 @@
 			<attribute name="optional" value="true"/>
 		</attributes>
 	</classpathentry>
-	<classpathentry combineaccessrules="false" exported="true" kind="src" path="/scenarium-logger">
-		<attributes>
-			<attribute name="module" value="true"/>
-		</attributes>
-	</classpathentry>
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-14">
 		<attributes>
 			<attribute name="module" value="true"/>
@@ -31,5 +26,10 @@
 			<attribute name="test" value="true"/>
 		</attributes>
 	</classpathentry>
+	<classpathentry combineaccessrules="false" exported="true" kind="src" path="/scenarium-logger">
+		<attributes>
+			<attribute name="module" value="true"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry kind="output" path="out/eclipse/classes"/>
 </classpath>

src/org/atriasoft/etk/Color.java

@@ -162,7 +162,7 @@ public record Color(
 	public static final Color YELLOW = new Color(0xFF, 0xFF, 0x00, 0xFF);
 	public static final Color YELLOW_GREEN = new Color(0x9A, 0xCD, 0x32, 0xFF);
 	
-	private static final Map<String, Color> NAMED_COLORS = Map.<String, Color>ofEntries(
+	private static final Map<String, Color> NAMED_COLORS = Map.<String, Color> ofEntries(
 	//@formatter:off
     	Map.entry("none",				NONE),
     	Map.entry("aliceblue",			ALICE_BLUE),
@@ -414,9 +414,29 @@ public record Color(
 		this.a = a;
 	}
 	
+	public Color(final double r, final double g, final double b, final double a) {
+		this((float) r, (float) g, (float) b, (float) a);
+	}
+	
 	@Override
 	public String toString() {
 		return "rgba(" + this.r + ", " + this.g + ", " + this.b + ", " + this.a + ")";
 	}
 	
+	public Color withR(final float value) {
+		return new Color(value, this.g, this.b, this.a);
+	}
+	
+	public Color withG(final float value) {
+		return new Color(this.r, value, this.b, this.a);
+	}
+	
+	public Color withB(final float value) {
+		return new Color(this.r, this.g, value, this.a);
+	}
+	
+	public Color withA(final float value) {
+		return new Color(this.r, this.g, this.b, value);
+	}
+	
 }

src/org/atriasoft/etk/Dimension.java

@@ -0,0 +1,313 @@
+/** @file
+ * @author Edouard DUPIN
+ * @copyright 2011, Edouard DUPIN, all right reserved
+ * @license MPL v2.0 (see license file)
+ */
+package org.atriasoft.etk;
+
+import org.atriasoft.etk.internal.Log;
+import org.atriasoft.etk.math.Vector2f;
+import org.atriasoft.etk.math.Vector2i;
+
+/**
+ * in the dimension class we store the data as the more usefull unit (pixel) 
+ * but one case need to be dynamic the %, then when requested in % the register the % value
+ */
+@SuppressWarnings("preview")
+public record Dimension(
+		Vector2f size,
+		Distance type) {
+	public static final Dimension ZERO = new Dimension(Vector2f.ZERO, Distance.PIXEL);
+	private static Vector2f ratio = new Vector2f(9999999, 888888);
+	private static Vector2f invRatio = new Vector2f(1, 1);
+	private static Dimension windowsSize = new Dimension(Vector2f.MAX_VALUE, Distance.PIXEL);
+	
+	public static final float INCH_TO_MILLIMETER = 1.0f / 25.4f;
+	public static final float FOOT_TO_MILLIMETER = 1.0f / 304.8f;
+	public static final float METER_TO_MILLIMETER = 1.0f / 1000.0f;
+	public static final float CENTIMETER_TO_MILLIMETER = 1.0f / 10.0f;
+	public static final float KILOMETER_TO_MILLIMETER = 1.0f / 1000000.0f;
+	public static final float MILLIMETER_TO_INCH = 25.4f;
+	public static final float MILLIMETER_TO_FOOT = 304.8f;
+	public static final float MILLIMETER_TO_METER = 1000.0f;
+	public static final float MILLIMETER_TO_CENTIMETER = 10.0f;
+	public static final float MILLIMETER_TO_KILOMETER = 1000000.0f;
+	/**
+	 * basic init
+	 */
+	static {
+		final Dimension conversion = new Dimension(new Vector2f(72, 72), Distance.INCH);
+		ratio = conversion.getMillimeter();
+		invRatio = new Vector2f(1.0f / ratio.x(), 1.0f / ratio.y());
+		windowsSize = new Dimension(new Vector2f(200, 200), Distance.PIXEL);
+	}
+	
+	/**
+	 * get the Windows diagonal size in the request unit
+	 * @param type Unit type requested.
+	 * @return the requested size
+	 */
+	public static float getWindowsDiag(final Distance type) {
+		final Vector2f size = getWindowsSize(type);
+		return size.length();
+	}
+	
+	/**
+	 * get the Windows size in the request unit
+	 * @param type Unit type requested.
+	 * @return the requested size
+	 */
+	public static Vector2f getWindowsSize(final Distance type) {
+		return windowsSize.get(type);
+	}
+	
+	/**
+	 * set the Milimeter ratio for calculation
+	 * @param ratio Milimeter ration for the screen calculation interpolation
+	 * @param type Unit type requested.
+	 * @note: same as @ref setPixelPerInch (internal manage convertion)
+	 */
+	public static void setPixelRatio(final Vector2f ratio, final Distance type) {
+		Log.info("Set a new screen ratio for the screen : ratio=" + ratio + " type=" + type);
+		final Dimension conversion = new Dimension(ratio, type);
+		Log.info("     == > " + conversion);
+		Dimension.ratio = conversion.getMillimeter();
+		invRatio = new Vector2f(1.0f / Dimension.ratio.x(), 1.0f / Dimension.ratio.y());
+		Log.info("Set a new screen ratio for the screen : ratioMm=" + Dimension.ratio);
+	}
+	
+	/**
+	 * set the current Windows size
+	 * @param size size of the current windows in pixel.
+	 */
+	public static void setPixelWindowsSize(final Vector2f size) {
+		windowsSize = new Dimension(size);
+		Log.verbose("Set a new Windows property size " + windowsSize + "px");
+	}
+	
+	/**
+	 * Constructor (default :0,0 mode pixel)
+	 */
+	public Dimension() {
+		this(Vector2f.ZERO, Distance.PIXEL);
+	}
+	
+	/**
+	 * Constructor
+	 * @param size Requested dimension
+	 */
+	public Dimension(final Vector2f size) {
+		this(size, Distance.PIXEL);
+	}
+	
+	public Dimension(final Vector2f size, final Distance type) {
+		this.size = size;
+		this.type = type;
+	}
+	
+	/**
+	 * get the current dimension in requested type
+	 * @param type Type of unit requested.
+	 * @return dimension requested.
+	 */
+	public Vector2f get(final Distance type) {
+		return switch (type) {
+			case POURCENT -> getPourcent();
+			case PIXEL -> getPixel();
+			case METER -> getMeter();
+			case CENTIMETER -> getCentimeter();
+			case MILLIMETER -> getMillimeter();
+			case KILOMETER -> getKilometer();
+			case INCH -> getInch();
+			case FOOT -> getFoot();
+			case ELEMENT -> throw new UnsupportedOperationException("Unimplemented case: " + type);
+			case EX -> throw new UnsupportedOperationException("Unimplemented case: " + type);
+			case PC -> {
+				Log.error("Does not support other than Px and % type of dimention : " + type + " automaticly convert with {72,72} pixel/inch");
+				yield null;
+			}
+			case POINT -> throw new UnsupportedOperationException("Unimplemented case: " + type);
+			default -> throw new IllegalArgumentException("Unexpected value: " + type);
+		};
+	}
+	
+	/**
+	 * get the current dimension in Centimeter
+	 * @return dimension in Centimeter
+	 */
+	public Vector2f getCentimeter() {
+		return getMillimeter().multiply(MILLIMETER_TO_CENTIMETER);
+	}
+	
+	/**
+	 * get the current dimension in Foot
+	 * @return dimension in Foot
+	 */
+	public Vector2f getFoot() {
+		return getMillimeter().multiply(MILLIMETER_TO_FOOT);
+	}
+	
+	/**
+	 * get the current dimension in Inch
+	 * @return dimension in Inch
+	 */
+	public Vector2f getInch() {
+		return getMillimeter().multiply(MILLIMETER_TO_INCH);
+	}
+	
+	/**
+	 * get the current dimension in Kilometer
+	 * @return dimension in Kilometer
+	 */
+	public Vector2f getKilometer() {
+		return getMillimeter().multiply(MILLIMETER_TO_KILOMETER);
+	}
+	
+	/**
+	 * get the current dimension in Meter
+	 * @return dimension in Meter
+	 */
+	public Vector2f getMeter() {
+		return getMillimeter().multiply(MILLIMETER_TO_METER);
+	}
+	
+	/**
+	 * get the current dimension in Millimeter
+	 * @return dimension in Millimeter
+	 */
+	public Vector2f getMillimeter() {
+		return new Vector2f(getPixel().x() * invRatio.x(), getPixel().y() * invRatio.y());
+	}
+	
+	/**
+	 * get the current dimension in pixel
+	 * @return dimension in Pixel
+	 */
+	public Vector2f getPixel() {
+		return getPixel(windowsSize.getPixel());
+	}
+	
+	public Vector2f getPixel(final Vector2f uppersize) {
+		if (this.type != Distance.POURCENT) {
+			return this.size;
+		}
+		final Vector2f res = new Vector2f(uppersize.x() * this.size.x(), uppersize.y() * this.size.y());
+		//GALE_DEBUG("Get % : " + m_data + " / " + windDim + " == > " + res);
+		return res;
+	}
+	
+	public Vector2i getPixeli() {
+		Vector2f tmpSize = windowsSize.getPixel();
+		return getPixeli(new Vector2i((int) tmpSize.x(), (int) tmpSize.y()));
+	}
+	
+	public Vector2i getPixeli(final Vector2i uppersize) {
+		if (this.type != Distance.POURCENT) {
+			return new Vector2i((int) this.size.x(), (int) this.size.y());
+		}
+		final Vector2i res = new Vector2i((int) (uppersize.x() * this.size.x()), (int) (uppersize.y() * this.size.y()));
+		//GALE_DEBUG("Get % : " + m_data + " / " + windDim + " == > " + res);
+		return res;
+	}
+	
+	/**
+	 * get the current dimension in Pourcent
+	 * @return dimension in Pourcent
+	 */
+	public Vector2f getPourcent() {
+		if (this.type != Distance.POURCENT) {
+			final Vector2f windDim = windowsSize.getPixel();
+			//GALE_DEBUG(" windows dimension : " /*+ windowsSize*/ + "  == > " + windDim + "px"); // ==> infinite loop ...
+			//printf(" windows dimension : %f,%f", windDim.x(),windDim.y());
+			//printf(" data : %f,%f", m_data.x(),m_data.y());
+			return new Vector2f((this.size.x() / windDim.x()) * 100.0f, (this.size.y() / windDim.y()) * 100.0f);
+		}
+		return new Vector2f(this.size.x() * 100.0f, this.size.y() * 100.0f);
+	};
+	
+	/**
+	 * get the dimension type
+	 * @return the type
+	 */
+	public Distance getType() {
+		return this.type;
+	}
+	
+	/**
+	 * set the current dimension in requested type
+	 * @param config dimension configuration.
+	 */
+	public static Dimension valueOf(String config) {
+		final Vector2f size = Vector2f.ZERO;
+		Distance type = Distance.PIXEL;
+		if (config.endsWith("%")) {
+			type = Distance.POURCENT;
+			config = config.substring(0, config.length() - 1);
+		} else if (config.endsWith("px")) {
+			type = Distance.PIXEL;
+			config = config.substring(0, config.length() - 2);
+		} else if (config.endsWith("ft")) {
+			type = Distance.FOOT;
+			config = config.substring(0, config.length() - 2);
+		} else if (config.endsWith("in")) {
+			type = Distance.INCH;
+			config = config.substring(0, config.length() - 2);
+		} else if (config.endsWith("km")) {
+			type = Distance.KILOMETER;
+			config = config.substring(0, config.length() - 2);
+		} else if (config.endsWith("mm")) {
+			type = Distance.MILLIMETER;
+			config = config.substring(0, config.length() - 2);
+		} else if (config.endsWith("cm")) {
+			type = Distance.CENTIMETER;
+			config = config.substring(0, config.length() - 2);
+		} else if (config.endsWith("m")) {
+			type = Distance.METER;
+			config = config.substring(0, config.length() - 1);
+		} else if (config.endsWith("em")) {
+			type = Distance.ELEMENT;
+			config = config.substring(0, config.length() - 2);
+		} else if (config.endsWith("ex")) {
+			type = Distance.EX;
+			config = config.substring(0, config.length() - 2);
+		} else if (config.endsWith("pt")) {
+			type = Distance.POINT;
+			config = config.substring(0, config.length() - 2);
+		} else if (config.endsWith("pc")) {
+			type = Distance.PC;
+			config = config.substring(0, config.length() - 2);
+		} else {
+			Log.critical("Can not parse dimension : '" + config + "'");
+			return null;
+		}
+		final Vector2f tmp = Vector2f.valueOf(config);
+		final Dimension ret = new Dimension(tmp, type);
+		Log.verbose(" config dimension : '" + config + "'  == > " + ret.toString());
+		return ret;
+	}
+	
+	/**
+	 * string cast :
+	 */
+	@Override
+	public String toString() {
+		String str = get(getType()).toString();
+		switch (getType()) {
+			case POURCENT -> str += "%";
+			case PIXEL -> str += "px";
+			case METER -> str += "m";
+			case CENTIMETER -> str += "cm";
+			case MILLIMETER -> str += "mm";
+			case KILOMETER -> str += "km";
+			case INCH -> str += "in";
+			case FOOT -> str += "ft";
+			case ELEMENT -> str += "em";
+			case EX -> str += "ex";
+			case POINT -> str += "pt";
+			case PC -> str += "pc";
+			default -> str += "";
+		}
+		return str;
+	}
+	
+}

src/org/atriasoft/etk/Dimension1D.java

@@ -0,0 +1,164 @@
+/** @file
+ * @author Edouard DUPIN
+ * @copyright 2011, Edouard DUPIN, all right reserved
+ * @license MPL v2.0 (see license file)
+ */
+package org.atriasoft.etk;
+
+import org.atriasoft.etk.internal.Log;
+import org.atriasoft.etk.math.Vector2f;
+
+/**
+ * in the dimension class we store the data as the more usefull unit (pixel) 
+ * but one case need to be dynamic the %, then when requested in % the register the % value
+ */
+@SuppressWarnings("preview")
+public record Dimension1D(
+		float size,
+		Distance type) {
+	private static final float BASIC_RATIO = 72.0f / 25.4f;
+	public static final Dimension1D ZERO = new Dimension1D(0);
+	public static final float INCH_TO_MILLIMETER = 1.0f / 25.4f;
+	public static final float FOOT_TO_MILLIMETER = 1.0f / 304.8f;
+	public static final float METER_TO_MILLIMETER = 1.0f / 1000.0f;
+	public static final float CENTIMETER_TO_MILLIMETER = 1.0f / 10.0f;
+	public static final float KILOMETER_TO_MILLIMETER = 1.0f / 1000000.0f;
+	public static final float MILLIMETER_TO_INCH = 25.4f;
+	public static final float MILLIMETER_TO_FOOT = 304.8f;
+	public static final float MILLIMETER_TO_METER = 1000.0f;
+	public static final float MILLIMETER_TO_CENTIMETER = 10.0f;
+	public static final float MILLIMETER_TO_KILOMETER = 1000000.0f;
+	
+	/**
+	 * Constructor (default :0,0 mode pixel)
+	 */
+	public Dimension1D() {
+		this(0, Distance.PIXEL);
+	}
+	
+	/**
+	 * Constructor
+	 * @param size Requested dimension
+	 */
+	public Dimension1D(final float size) {
+		this(size, Distance.PIXEL);
+	}
+	
+	public Dimension1D(final float size, final Distance type) {
+		this.size = size;
+		this.type = type;
+	}
+	
+	/**
+	 * get the current dimension in pixel
+	 * @return dimension in Pixel
+	 */
+	public float getPixel(final float upperSize) {
+		switch (this.type) {
+			case POURCENT:
+				return upperSize * this.size * 0.01f;
+			case PIXEL:
+				return this.size;
+			case METER:
+				return this.size * METER_TO_MILLIMETER * BASIC_RATIO;
+			case CENTIMETER:
+				return this.size * CENTIMETER_TO_MILLIMETER * BASIC_RATIO;
+			case MILLIMETER:
+				return this.size * BASIC_RATIO;
+			case KILOMETER:
+				return this.size * KILOMETER_TO_MILLIMETER * BASIC_RATIO;
+			case INCH:
+				return this.size * INCH_TO_MILLIMETER * BASIC_RATIO;
+			case FOOT:
+				return this.size * FOOT_TO_MILLIMETER * BASIC_RATIO;
+			default:
+				return 128.0f;
+		}
+	}
+	
+	/**
+	 * get the dimension type
+	 * @return the type
+	 */
+	public Distance getType() {
+		return this.type;
+	}
+	
+	/**
+	 * set the current dimension in requested type
+	 * @param config dimension configuration.
+	 */
+	public static Dimension1D valueOf(String config) {
+		final Vector2f size = Vector2f.ZERO;
+		Distance type = Distance.PIXEL;
+		if (config.endsWith("%")) {
+			type = Distance.POURCENT;
+			config = config.substring(0, config.length() - 1);
+		} else if (config.endsWith("px")) {
+			type = Distance.PIXEL;
+			config = config.substring(0, config.length() - 2);
+		} else if (config.endsWith("ft")) {
+			type = Distance.FOOT;
+			config = config.substring(0, config.length() - 2);
+		} else if (config.endsWith("in")) {
+			type = Distance.INCH;
+			config = config.substring(0, config.length() - 2);
+		} else if (config.endsWith("km")) {
+			type = Distance.KILOMETER;
+			config = config.substring(0, config.length() - 2);
+		} else if (config.endsWith("mm")) {
+			type = Distance.MILLIMETER;
+			config = config.substring(0, config.length() - 2);
+		} else if (config.endsWith("cm")) {
+			type = Distance.CENTIMETER;
+			config = config.substring(0, config.length() - 2);
+		} else if (config.endsWith("m")) {
+			type = Distance.METER;
+			config = config.substring(0, config.length() - 1);
+		} else if (config.endsWith("em")) {
+			type = Distance.ELEMENT;
+			config = config.substring(0, config.length() - 2);
+		} else if (config.endsWith("ex")) {
+			type = Distance.EX;
+			config = config.substring(0, config.length() - 2);
+		} else if (config.endsWith("pt")) {
+			type = Distance.POINT;
+			config = config.substring(0, config.length() - 2);
+		} else if (config.endsWith("pc")) {
+			type = Distance.PC;
+			config = config.substring(0, config.length() - 2);
+		} else {
+			Log.critical("Can not parse dimension : '" + config + "'");
+			return null;
+		}
+		final float tmp = Float.valueOf(config);
+		final Dimension1D ret = new Dimension1D(tmp, type);
+		Log.verbose(" config dimension : '" + config + "'  == > " + ret.toString());
+		return ret;
+	}
+	
+	/**
+	 * string cast :
+	 */
+	@Override
+	public String toString() {
+		String str = Float.toString(this.size);
+		switch (getType()) {
+			case POURCENT -> str += "%";
+			case PIXEL -> str += "px";
+			case METER -> str += "m";
+			case CENTIMETER -> str += "cm";
+			case MILLIMETER -> str += "mm";
+			case KILOMETER -> str += "km";
+			case INCH -> str += "in";
+			case FOOT -> str += "ft";
+			case ELEMENT -> str += "em";
+			case EX -> str += "ex";
+			case POINT -> str += "pt";
+			case PC -> str += "pc";
+			default -> str += "";
+		}
+		return str;
+	}
+	
+}

src/org/atriasoft/etk/Distance.java

@@ -0,0 +1,16 @@
+package org.atriasoft.etk;
+
+public enum Distance {
+	POURCENT, //!< "%"
+	PIXEL, //!< "px"
+	METER, //!< "m"
+	CENTIMETER, //!< "cm"
+	MILLIMETER, //!< "mm"
+	KILOMETER, //!< "km"
+	INCH, //!< "in"
+	FOOT, //!< "ft"
+	ELEMENT, //!< "em"
+	EX, //!< "ex"
+	POINT, //!< "pt"
+	PC; //!< "pc"
+}

src/org/atriasoft/etk/Uri.java

@@ -1,5 +1,7 @@
 package org.atriasoft.etk;
 
+import java.io.BufferedWriter;
+import java.io.FileWriter;
 import java.io.IOException;
 import java.io.InputStream;
 import java.net.URL;
@@ -22,7 +24,8 @@ public class Uri {
 	
 	static {
 		genericMap.put("DATA", "data/");
-		genericMap.put("THEME_GUI", "theme/");
+		genericMap.put("THEME", "theme/");
+		genericMap.put("TRANSLATE", "translate/");
 	}
 	
 	public static void addLibrary(final String libName, final Class<?> classHandle, String basePath) {
@@ -84,6 +87,7 @@ public class Uri {
 			Log.warning("    !! Application data class is not defined ...");
 		} else {
 			String tmpPath = applicationBasePath + offsetGroup + uri.path;
+			tmpPath = tmpPath.replace("//", "/");
 			Log.info("(appl) Try to load '" + tmpPath + "' in " + applicationClass.getCanonicalName());
 			URL realFileName = applicationClass.getClassLoader().getResource(tmpPath);
 			if (realFileName != null) {
@@ -107,6 +111,7 @@ public class Uri {
 					return null;
 				}
 				String tmpPath = libraryElement.basePath + offsetGroup + uri.path;
+				tmpPath = tmpPath.replace("//", "/");
 				Log.info("(lib) Try to load '" + tmpPath + "' in " + libraryElement.klass.getCanonicalName());
 				URL realFileName = libraryElement.klass.getClassLoader().getResource(tmpPath);
 				if (realFileName != null) {
@@ -131,6 +136,10 @@ public class Uri {
 		return out;
 	}
 	
+	public static void setApplication(final Class<?> classHandle) {
+		setApplication(classHandle, "");
+	}
+	
 	public static void setApplication(final Class<?> classHandle, String basePath) {
 		Log.info("Set application reference : " + classHandle.getCanonicalName() + "  base path=" + basePath);
 		applicationClass = classHandle;
@@ -178,12 +187,36 @@ public class Uri {
 		return new Uri(group, path, lib);
 	}
 	
+	public static void writeAll(final Uri uri, final String data) {
+		BufferedWriter out = null;
+		try {
+			FileWriter fstream = new FileWriter(uri.getPath(), true); //true tells to append data.
+			out = new BufferedWriter(fstream);
+			out.write(data);
+		} catch (IOException e) {
+			Log.error("Error: " + e.getMessage());
+		} finally {
+			if (out != null) {
+				try {
+					out.close();
+				} catch (IOException e) {
+					// TODO Auto-generated catch block
+					Log.error("Error: ", e);
+				}
+			}
+		}
+	}
+	
 	private final String group;
 	
 	private final String path;
 	
 	private final String lib;
 	
+	public Uri(final String path) {
+		this(null, path, null);
+	}
+	
 	public Uri(final String group, final String path) {
 		this(group, path, null);
 	}

src/org/atriasoft/etk/internal/Log.java

@@ -33,6 +33,13 @@ public class Log {
 		}
 	}
 	
+	public static void error(final String data, final Exception e) {
+		e.printStackTrace();
+		if (PRINT_ERROR) {
+			Logger.error(LIB_NAME_DRAW, data);
+		}
+	}
+	
 	public static void info(final String data) {
 		if (PRINT_INFO) {
 			Logger.info(LIB_NAME_DRAW, data);

src/org/atriasoft/etk/math/FMath.java

@@ -12,6 +12,10 @@ public class FMath {
 		return a;
 	}
 	
+	public static float acos(final float value) {
+		return (float) Math.acos(value);
+	}
+	
 	/**
 	 * Test if the value id in the correct range
 	 * 
@@ -36,6 +40,10 @@ public class FMath {
 		return (abs(difference) < epsilon);
 	}
 	
+	public static float asin(final float value) {
+		return (float) Math.asin(value);
+	}
+	
 	public static float atan(final float value) {
 		return (float) Math.atan(value);
 	}
@@ -48,6 +56,10 @@ public class FMath {
 		return Math.max(min, Math.min(value, max));
 	}
 	
+	public static int avg(final int min, final int value, final int max) {
+		return Math.max(min, Math.min(value, max));
+	}
+	
 	/// Function that returns the result of the "value" clamped by
 	/// two others values "lowerLimit" and "upperLimit"
 	public static float clamp(final float value, final float lowerLimit, final float upperLimit) {
@@ -80,6 +92,48 @@ public class FMath {
 		return (int) Math.floor(f);
 	}
 	
+	public static double[] getTableDouble(final String data, final String separator, final int nbElement) {
+		double[] out = new double[nbElement];
+		String[] values = data.split(separator);
+		if (values.length != nbElement) {
+			return null;
+		}
+		for (int iii = 0; iii < nbElement; iii++) {
+			out[iii] = Double.parseDouble(values[iii]);
+		}
+		return out;
+	}
+	
+	public static float[] getTableFloat(final String data, final String separator, final int nbElement) {
+		float[] out = new float[nbElement];
+		String[] values = data.split(separator);
+		if (values.length != nbElement) {
+			return null;
+		}
+		for (int iii = 0; iii < nbElement; iii++) {
+			out[iii] = Float.parseFloat(values[iii]);
+		}
+		return out;
+	}
+	
+	// return list of read and the number of char read.
+	/*
+	public static Pair<float[], Integer> getTableFloatMax(final String data, final String separator, final int nbElement) {
+		data = data.replace(",", " ");
+		
+		List<Float> out = new ArrayList<>();
+		String[] values = data.split(separator);
+		for (int iii = 0; iii < values.length; iii++) {
+			try {
+				float val = Float.parseFloat(values[iii]);
+			} catch (NumberFormatException e) {
+				break;
+			}
+		}
+		return out;
+	}
+	*/
+	
 	public static float max(final float a, final float b) {
 		return Math.max(a, b);
 	}

src/org/atriasoft/etk/math/Matrix2x3f.java

@@ -0,0 +1,230 @@
+package org.atriasoft.etk.math;
+
+/**
+ *Internal data
+ *  sx  shx  tx
+ *  sy  shy  ty
+ */
+@SuppressWarnings("preview")
+public record Matrix2x3f(
+		float sx,
+		float shy,
+		float shx,
+		float sy,
+		float tx,
+		float ty) {
+	
+	/**
+	 *Configuration ructor.
+	 * @param sx Scale threw X axis
+	 * @param shy Rotate in radian threw Y axis
+	 * @param shx Rotate in radian threw X axis
+	 * @param sy Scale threw Y axis
+	 * @param tx Translate threw X axis
+	 * @param ty translate threw Y axis
+	 */
+	public Matrix2x3f(final float sx, final float shy, final float shx, final float sy, final float tx, final float ty) {
+		this.sx = sx;
+		this.shy = shy;
+		this.shx = shx;
+		this.sy = sy;
+		this.tx = tx;
+		this.ty = ty;
+	}
+	
+	/**
+	 *Configuration ructor.
+	 * @param values vector of values in float
+	 */
+	public Matrix2x3f(final float[] values) {
+		this(values[0], values[1], values[2], values[3], values[4], values[5]);
+	}
+	
+	/**
+	 *Configuration ructor.
+	 * @param values vector of values in double
+	 */
+	public Matrix2x3f(final double[] values) {
+		this((float) values[0], (float) values[1], (float) values[2], (float) values[3], (float) values[4], (float) values[5]);
+	}
+	
+	/**
+	 *Load Identity matrix
+	 */
+	public static final Matrix2x3f IDENTITY = new Matrix2x3f(1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f);
+	
+	/**
+	 *Operator+= Addition an other matrix with this one
+	 * @param obj Reference on the external object
+	 * @return Local reference of the vector additionned
+	 */
+	public Matrix2x3f add(final Matrix2x3f obj) {
+		return new Matrix2x3f(this.sx + obj.sx, this.shy + obj.shy, this.shx + obj.shx, this.sy + obj.sy, this.tx + obj.tx, this.ty + obj.ty);
+	}
+	
+	/**
+	 *Operator-= Decrement an other matrix with this one
+	 * @param obj Reference on the external object
+	 * @return Local reference of the vector decremented
+	 */
+	public Matrix2x3f less(final Matrix2x3f obj) {
+		return new Matrix2x3f(this.sx - obj.sx, this.shy - obj.shy, this.shx - obj.shx, this.sy - obj.sy, this.tx - obj.tx, this.ty - obj.ty);
+	}
+	
+	/**
+	 *Operator*= Multiplication an other matrix with this one
+	 * @param obj Reference on the external object
+	 * @return Local reference of the vector multiplicated
+	 */
+	public Matrix2x3f multiply(final Matrix2x3f obj) {
+		float sx = this.sx * obj.sx + this.shy * obj.shx;
+		float shx = this.shx * obj.sx + this.sy * obj.shx;
+		float tx = this.tx * obj.sx + this.ty * obj.shx + obj.tx;
+		float shy = this.sx * obj.shy + this.shy * obj.sy;
+		float sy = this.shx * obj.shy + this.sy * obj.sy;
+		float ty = this.tx * obj.shy + this.ty * obj.sy + obj.ty;
+		return new Matrix2x3f(sx, shy, shx, sy, tx, ty);
+	}
+	
+	/**
+	 *Operator* apply matrix on a vector
+	 * @param point Point value to apply the matrix
+	 * @return New vector containing the value
+	 */
+	public Vector2f multiply(final Vector2f point) {
+		return new Vector2f(point.x() * this.sx + point.y() * this.shx + this.tx, point.x() * this.shy + point.y() * this.sy + this.ty);
+	}
+	
+	/**
+	 *Apply matrix on a vector Scale Rotate, but NOT the translation
+	 * @param point Point value to apply the matrix
+	 * @return New vector containing the value
+	 */
+	public Vector2f applyScaleRotation(final Vector2f point) {
+		return new Vector2f(point.x() * this.sx + point.y() * this.shx, point.x() * this.shy + point.y() * this.sy);
+	}
+	
+	/**
+	 *Flip the mathix threw the X axis
+	 */
+	public Matrix2x3f flipX() {
+		return new Matrix2x3f(-this.sx, this.shy, -this.shx, this.sy, -this.tx, this.ty);
+	}
+	
+	/**
+	 *Flip the mathix threw the Y axis
+	 */
+	public Matrix2x3f flipY() {
+		return new Matrix2x3f(this.sx, -this.shy, this.shx, -this.sy, this.tx, -this.ty);
+	}
+	
+	/**
+	 *Scale the current Matrix.
+	 * @param vect Vector to scale matrix.
+	 */
+	public Matrix2x3f scale(final Vector2f vect) {
+		return new Matrix2x3f(this.sx * vect.x(), this.shy * vect.y(), this.shx * vect.x(), this.sy * vect.y(), this.tx * vect.x(), this.ty * vect.y());
+	}
+	
+	/**
+	 *Scale the current Matrix.
+	 * @param value Single value to scale in X andf Y.
+	 */
+	public Matrix2x3f scale(final float value) {
+		return new Matrix2x3f(this.sx * value, this.shy * value, this.shx * value, this.sy * value, this.tx * value, this.ty * value);
+	}
+	
+	/**
+	 *Makes a rotation matrix.
+	 * @param angleRad angle to apply.
+	 */
+	public Matrix2x3f rotate(final float angleRad) {
+		float ca = FMath.cos(angleRad);
+		float sa = FMath.sin(angleRad);
+		float sx = this.sx * ca - this.shy * sa;
+		float shx = this.shx * ca - this.sy * sa;
+		float tx = this.tx * ca - this.ty * sa;
+		float shy = this.sx * sa + this.shy * ca;
+		float sy = this.shx * sa + this.sy * ca;
+		float ty = this.tx * sa + this.ty * ca;
+		return new Matrix2x3f(sx, shy, shx, sy, tx, ty);
+	}
+	
+	/**
+	 *Makes a translation of the matrix
+	 * @param vect Translation to apply.
+	 */
+	public Matrix2x3f translate(final Vector2f vect) {
+		return new Matrix2x3f(this.sx, this.shy, this.shx, this.sy, this.tx + vect.x(), this.ty + vect.y());
+	}
+	
+	/**
+	 *Computes the determinant of the matrix.
+	 * @return The determinent Value.
+	 */
+	public float determinant() {
+		return this.sx * this.sy - this.shy * this.shx;
+	}
+	
+	/**
+	 *Inverts the matrix.
+	 * @note The determinant must be != 0, otherwithe the matrix can't be inverted.
+	 * @return The inverted matrix.
+	 */
+	public Matrix2x3f invert() {
+		double det = 1.0 / determinant();
+		float sx = (float) (this.sy * det);
+		float sy = (float) (this.sx * det);
+		float shy = (float) (-this.shy * det);
+		float shx = (float) (-this.shx * det);
+		float tx = -this.tx * sx - this.ty * this.shx;
+		float ty = -this.tx * this.shy - this.ty * this.sy;
+		return new Matrix2x3f(sx, shy, shx, sy, tx, ty);
+	}
+	
+	/**
+	 * Create a matrix 2D with a simple rotation
+	 * @param angleRad Radian angle to set at the matrix
+	 * @return New matrix of the transformation requested
+	 */
+	public static Matrix2x3f createRotate(final float angleRad) {
+		return new Matrix2x3f(FMath.cos(angleRad), FMath.sin(angleRad), -FMath.sin(angleRad), FMath.cos(angleRad), 0.0f, 0.0f);
+	};
+	
+	/**
+	 * Create a matrix 2D with a simple scale
+	 * @param scale 2 dimention scale
+	 * @return New matrix of the transformation requested
+	 */
+	public static Matrix2x3f createScale(final Vector2f scale) {
+		return new Matrix2x3f(scale.x(), 0.0f, 0.0f, scale.y(), 0.0f, 0.0f);
+	};
+	
+	/**
+	 *Create a matrix 2D with a simple scale
+	 * @param scale same scale in 2 and Y
+	 * @return New matrix of the transformation requested
+	 */
+	public static Matrix2x3f createScale(final float scale) {
+		return new Matrix2x3f(scale, 0.0f, 0.0f, scale, 0.0f, 0.0f);
+	};
+	
+	/**
+	 *Create a matrix 2D with a simple translation
+	 * @param translate 2 dimention translation
+	 * @return New matrix of the transformation requested
+	 */
+	public static Matrix2x3f createTranslate(final Vector2f translate) {
+		return new Matrix2x3f(1.0f, 0.0f, 0.0f, 1.0f, translate.x(), translate.y());
+	};
+	
+	/**
+	 *Create a matrix 2D with a simple skew
+	 * @param skew 2 dimention skew
+	 * @return New matrix of the transformation requested
+	 */
+	public static Matrix2x3f createSkew(final Vector2f skew) {
+		return new Matrix2x3f(1.0f, FMath.tan(skew.y()), FMath.tan(skew.x()), 1.0f, 0.0f, 0.0f);
+	};
+	
+}

src/org/atriasoft/etk/math/Vector2f.java

@@ -1,10 +1,13 @@
 package org.atriasoft.etk.math;
 
-import edu.umd.cs.findbugs.annotations.CheckReturnValue;
 import org.atriasoft.etk.internal.Log;
 
+import edu.umd.cs.findbugs.annotations.CheckReturnValue;
+
 @SuppressWarnings("preview")
-public record Vector2f(float x, float y) {
+public record Vector2f(
+		float x,
+		float y) {
 	public static Vector2f valueOf(String value) {
 		float val1 = 0;
 		float val2 = 0;
@@ -40,22 +43,27 @@ public record Vector2f(float x, float y) {
 		this.y = y;
 	}
 	
-	
-	
 	@CheckReturnValue
 	public static Vector2f clipInt(final Vector2f obj1) {
-		return new Vector2f((int)obj1.x, (int)obj1.y);
+		return new Vector2f((int) obj1.x, (int) obj1.y);
 	}
 	
-
 	public static Vector2f max(final Vector2f obj1, final Vector2f obj2) {
 		return new Vector2f(Math.max(obj1.x, obj2.x), Math.max(obj1.y, obj2.y));
 	}
 	
+	public static Vector2f max(final Vector2f obj1, final Vector2f obj2, final Vector2f obj3) {
+		return new Vector2f(FMath.max(obj1.x, obj2.x, obj3.x), FMath.max(obj1.y, obj2.y, obj3.y));
+	}
+	
 	public static Vector2f min(final Vector2f obj1, final Vector2f obj2) {
 		return new Vector2f(Math.min(obj1.x, obj2.x), Math.min(obj1.y, obj2.y));
 	}
 	
+	public static Vector2f min(final Vector2f obj1, final Vector2f obj2, final Vector2f obj3) {
+		return new Vector2f(FMath.min(obj1.x, obj2.x, obj3.x), FMath.min(obj1.y, obj2.y, obj3.y));
+	}
+	
 	/**
 	 * Return a vector will the absolute values of each element
 	 * @return New vector containing the value
@@ -70,14 +78,26 @@ public record Vector2f(float x, float y) {
 		return new Vector2f(this.x + val, this.y + val);
 	}
 	
+	@CheckReturnValue
+	public Vector2f addX(final float val) {
+		return new Vector2f(this.x + val, this.y);
+	}
+	
+	@CheckReturnValue
+	public Vector2f addY(final float val) {
+		return new Vector2f(this.x, this.y + val);
+	}
+	
 	@CheckReturnValue
 	public Vector2f add(final Vector2f obj) {
 		return new Vector2f(this.x + obj.x, this.y + obj.y);
 	}
+	
 	@CheckReturnValue
 	public Vector2f add(final Vector2i obj) {
 		return new Vector2f(this.x + obj.x(), this.y + obj.y());
 	}
+	
 	@CheckReturnValue
 	public Vector2f add(final float xxx, final float yyy) {
 		return new Vector2f(this.x + xxx, this.y + yyy);
@@ -275,6 +295,17 @@ public record Vector2f(float x, float y) {
 	public Vector2f less(final float val) {
 		return new Vector2f(this.x - val, this.y - val);
 	}
+	
+	@CheckReturnValue
+	public Vector2f lessX(final float val) {
+		return new Vector2f(this.x - val, this.y);
+	}
+	
+	@CheckReturnValue
+	public Vector2f lessY(final float val) {
+		return new Vector2f(this.x, this.y - val);
+	}
+	
 	@CheckReturnValue
 	public Vector2f less(final float xxx, final float yyy) {
 		return new Vector2f(this.x - xxx, this.y - yyy);
@@ -284,6 +315,7 @@ public record Vector2f(float x, float y) {
 	public Vector2f less(final Vector2f obj) {
 		return new Vector2f(this.x - obj.x, this.y - obj.y);
 	}
+	
 	@CheckReturnValue
 	public Vector2f less(final Vector2i obj) {
 		return new Vector2f(this.x - obj.x(), this.y - obj.y());
@@ -372,6 +404,16 @@ public record Vector2f(float x, float y) {
 	public static final Vector2f MIN_VALUE = new Vector2f(Float.MIN_VALUE, Float.MIN_VALUE);
 	public static final Vector2f ZERO = new Vector2f(0, 0);
 	public static final Vector2f ONE = new Vector2f(1, 1);
+	public static final Vector2f VALUE_2 = new Vector2f(2, 2);
+	public static final Vector2f VALUE_4 = new Vector2f(4, 4);
+	public static final Vector2f VALUE_8 = new Vector2f(8, 8);
+	public static final Vector2f VALUE_16 = new Vector2f(16, 16);
+	public static final Vector2f VALUE_32 = new Vector2f(32, 32);
+	public static final Vector2f VALUE_64 = new Vector2f(64, 64);
+	public static final Vector2f VALUE_128 = new Vector2f(128, 128);
+	public static final Vector2f VALUE_256 = new Vector2f(256, 256);
+	public static final Vector2f VALUE_512 = new Vector2f(512, 512);
+	public static final Vector2f VALUE_1024 = new Vector2f(1024, 1024);
 	
 	@Override
 	public String toString() {

src/org/atriasoft/etk/math/Vector2i.java

@@ -21,7 +21,7 @@ public record Vector2i(
 		}
 		final String[] values = value.split(",");
 		if (values.length > 2) {
-			Log.error("Can not parse Vector2f with more than 2 values: '" + value + "'");
+			Log.error("Can not parse Vector2i with more than 2 values: '" + value + "'");
 		}
 		if (values.length == 1) {
 			// no coma ...
@@ -318,6 +318,16 @@ public record Vector2i(
 	 */
 	public static final Vector2i ZERO = new Vector2i(0, 0);
 	public static final Vector2i ONE = new Vector2i(1, 1);
+	public static final Vector2i VALUE_2 = new Vector2i(2, 2);
+	public static final Vector2i VALUE_4 = new Vector2i(4, 4);
+	public static final Vector2i VALUE_8 = new Vector2i(8, 8);
+	public static final Vector2i VALUE_16 = new Vector2i(16, 16);
+	public static final Vector2i VALUE_32 = new Vector2i(32, 32);
+	public static final Vector2i VALUE_64 = new Vector2i(64, 64);
+	public static final Vector2i VALUE_128 = new Vector2i(128, 128);
+	public static final Vector2i VALUE_256 = new Vector2i(256, 256);
+	public static final Vector2i VALUE_512 = new Vector2i(512, 512);
+	public static final Vector2i VALUE_1024 = new Vector2i(1024, 1024);
 	
 	@Override
 	public String toString() {

src/org/atriasoft/etk/math/Vector3f.java

@@ -1,9 +1,13 @@
 package org.atriasoft.etk.math;
 
-import edu.umd.cs.findbugs.annotations.CheckReturnValue;
 import org.atriasoft.etk.internal.Log;
 
-public record Vector3f(float x, float y, float z) {
+import edu.umd.cs.findbugs.annotations.CheckReturnValue;
+
+public record Vector3f(
+		float x,
+		float y,
+		float z) {
 	/**
 	 *  Get the length square between the 2 vectors
 	 * @param start First vector
@@ -79,13 +83,15 @@ public record Vector3f(float x, float y, float z) {
 	public Vector3f add(final float value) {
 		return new Vector3f(this.x + value, this.y + value, this.z + value);
 	}
+	
 	@CheckReturnValue
 	public Vector3f add(final float xxx, final float yyy, final float zzz) {
 		return new Vector3f(this.x + xxx, this.y + yyy, this.z + zzz);
 	}
+	
 	@CheckReturnValue
 	public Vector3f clipInteger() {
-		return new Vector3f((int)x, (int)y, (int)z);
+		return new Vector3f((int) this.x, (int) this.y, (int) this.z);
 	}
 	
 	/**
@@ -135,8 +141,7 @@ public record Vector3f(float x, float y, float z) {
 	 */
 	@CheckReturnValue
 	public Vector3f cross(final Vector3f obj) {
-		return new Vector3f(this.y * obj.z - this.z * obj.y, this.z * obj.x - this.x * obj.z,
+		return new Vector3f(this.y * obj.z - this.z * obj.y, this.z * obj.x - this.x * obj.z, this.x * obj.y - this.y * obj.x);
-				this.x * obj.y - this.y * obj.x);
 	}
 	
 	/**
@@ -381,14 +386,14 @@ public record Vector3f(float x, float y, float z) {
 	 */
 	@CheckReturnValue
 	public Vector3f lerp(final Vector3f obj, final float ratio) {
-		return new Vector3f(this.x + (obj.x - this.x) * ratio, this.y + (obj.y - this.y) * ratio,
+		return new Vector3f(this.x + (obj.x - this.x) * ratio, this.y + (obj.y - this.y) * ratio, this.z + (obj.z - this.z) * ratio);
-				this.z + (obj.z - this.z) * ratio);
 	}
 	
 	@CheckReturnValue
 	public Vector3f less(final float value) {
 		return new Vector3f(this.x - value, this.y - value, this.z - value);
 	}
+	
 	@CheckReturnValue
 	public Vector3f less(final float xxx, final float yyy, final float zzz) {
 		return new Vector3f(this.x - xxx, this.y - yyy, this.z - zzz);
@@ -497,8 +502,7 @@ public record Vector3f(float x, float y, float z) {
 	@CheckReturnValue
 	public Vector3f setInterpolate3(final Vector3f obj0, final Vector3f obj1, final float ratio) {
 		final float inverse = 1.0f - ratio;
-		return new Vector3f(inverse * obj0.x + ratio * obj1.x, inverse * obj0.y + ratio * obj1.y,
+		return new Vector3f(inverse * obj0.x + ratio * obj1.x, inverse * obj0.y + ratio * obj1.y, inverse * obj0.z + ratio * obj1.z);
-				inverse * obj0.z + ratio * obj1.z);
 		// this.co[3] = s * v0[3] + rt * v1[3];
 	}
 	
@@ -552,11 +556,20 @@ public record Vector3f(float x, float y, float z) {
 	 */
 	public static final Vector3f ZERO = new Vector3f(0, 0, 0);
 	public static final Vector3f ONE = new Vector3f(1, 1, 1);
+	public static final Vector3f VALUE_2 = new Vector3f(2, 2, 2);
+	public static final Vector3f VALUE_4 = new Vector3f(4, 4, 4);
+	public static final Vector3f VALUE_8 = new Vector3f(8, 8, 8);
+	public static final Vector3f VALUE_16 = new Vector3f(16, 16, 16);
+	public static final Vector3f VALUE_32 = new Vector3f(32, 32, 32);
+	public static final Vector3f VALUE_64 = new Vector3f(64, 64, 64);
+	public static final Vector3f VALUE_128 = new Vector3f(128, 128, 128);
+	public static final Vector3f VALUE_256 = new Vector3f(256, 256, 256);
+	public static final Vector3f VALUE_512 = new Vector3f(512, 512, 512);
+	public static final Vector3f VALUE_1024 = new Vector3f(1024, 1024, 1024);
 	
 	@Override
 	public String toString() {
-		return "Vector3f(" + FMath.floatToString(this.x) + "," + FMath.floatToString(this.y) + ","
+		return "Vector3f(" + FMath.floatToString(this.x) + "," + FMath.floatToString(this.y) + "," + FMath.floatToString(this.z) + ")";
-				+ FMath.floatToString(this.z) + ")";
 	}
 	
 	/**
@@ -567,7 +580,6 @@ public record Vector3f(float x, float y, float z) {
 	 */
 	@CheckReturnValue
 	public float triple(final Vector3f obj1, final Vector3f obj2) {
-		return this.x * (obj1.y * obj2.z - obj1.z * obj2.y) + this.y * (obj1.z * obj2.x - obj1.x * obj2.z)
+		return this.x * (obj1.y * obj2.z - obj1.z * obj2.y) + this.y * (obj1.z * obj2.x - obj1.x * obj2.z) + this.z * (obj1.x * obj2.y - obj1.y * obj2.x);
-				+ this.z * (obj1.x * obj2.y - obj1.y * obj2.x);
 	}
 }

src/org/atriasoft/etk/math/Vector3i.java

@@ -1,8 +1,9 @@
 package org.atriasoft.etk.math;
 
-import edu.umd.cs.findbugs.annotations.CheckReturnValue;
 import org.atriasoft.etk.internal.Log;
 
+import edu.umd.cs.findbugs.annotations.CheckReturnValue;
+
 public record Vector3i(
 		int x,
 		int y,
@@ -20,7 +21,7 @@ public record Vector3i(
 		}
 		final String[] values = value.split(",");
 		if (values.length > 3) {
-			Log.error("Can not parse Vector3f with more than 3 values: '" + value + "'");
+			Log.error("Can not parse Vector3i with more than 3 values: '" + value + "'");
 		}
 		if (values.length == 1) {
 			// no coma ...
@@ -92,10 +93,12 @@ public record Vector3i(
 	public Vector3i add(final Vector3i obj) {
 		return new Vector3i(this.x + obj.x, this.y + obj.y, this.z + obj.z);
 	}
+	
 	@CheckReturnValue
 	public Vector3i add(final int value) {
 		return new Vector3i(this.x + value, this.y + value, this.z + value);
 	}
+	
 	@CheckReturnValue
 	public Vector3i add(final int xxx, final int yyy, final int zzz) {
 		return new Vector3i(this.x + xxx, this.y + yyy, this.z + zzz);
@@ -225,6 +228,7 @@ public record Vector3i(
 	public int getMinAxis() {
 		return (this.x < this.y ? (this.x < this.z ? 0 : 2) : (this.y < this.z ? 1 : 2));
 	}
+	
 	@CheckReturnValue
 	public Vector3i getSkewSymmetricMatrix0() {
 		return new Vector3i(0, -this.z, this.y);
@@ -309,10 +313,12 @@ public record Vector3i(
 	public Vector3i less(final Vector3i obj) {
 		return new Vector3i(this.x - obj.x, this.y - obj.y, this.z - obj.z);
 	}
+	
 	@CheckReturnValue
 	public Vector3i less(final int value) {
 		return new Vector3i(this.x - value, this.y - value, this.z - value);
 	}
+	
 	@CheckReturnValue
 	public Vector3i less(final int xxx, final int yyy, final int zzz) {
 		return new Vector3i(this.x - xxx, this.y - yyy, this.z - zzz);
@@ -414,6 +420,16 @@ public record Vector3i(
 	 */
 	public static final Vector3i ZERO = new Vector3i(0, 0, 0);
 	public static final Vector3i ONE = new Vector3i(1, 1, 1);
+	public static final Vector3i VALUE_2 = new Vector3i(2, 2, 2);
+	public static final Vector3i VALUE_4 = new Vector3i(4, 4, 4);
+	public static final Vector3i VALUE_8 = new Vector3i(8, 8, 8);
+	public static final Vector3i VALUE_16 = new Vector3i(16, 16, 16);
+	public static final Vector3i VALUE_32 = new Vector3i(32, 32, 32);
+	public static final Vector3i VALUE_64 = new Vector3i(64, 64, 64);
+	public static final Vector3i VALUE_128 = new Vector3i(128, 128, 128);
+	public static final Vector3i VALUE_256 = new Vector3i(256, 256, 256);
+	public static final Vector3i VALUE_512 = new Vector3i(512, 512, 512);
+	public static final Vector3i VALUE_1024 = new Vector3i(1024, 1024, 1024);
 	
 	@Override
 	public String toString() {

src/org/atriasoft/etk/util/Dynamic.java

@@ -0,0 +1,9 @@
+package org.atriasoft.etk.util;
+
+public class Dynamic<T> {
+	public T value;
+	
+	public Dynamic(final T value) {
+		this.value = value;
+	}
+}

src/org/atriasoft/etk/util/Pair.java

@@ -49,6 +49,15 @@ public class Pair<U, V> {
 	public String toString() {
 		return "(" + this.first + ", " + this.second + ")";
 	}
+	
+	public Pair<U, V> withFirst(final U value) {
+		return new Pair<>(value, this.second);
+	}
+	
+	public Pair<U, V> withSecond(final V value) {
+		return new Pair<>(this.first, value);
+	}
+	
 }
 
 // Program to implement Pair Class in Java