Gets a related color, based on a factor amount. - Java 2D Graphics

Java examples for 2D Graphics:Color

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Description

Gets a related color, based on a factor amount.

Demo Code


//package com.java2s;
import java.awt.Color;
import java.util.Random;

public class Main {
    /**//from ww w . j a va2 s. co  m
     * Gets a related color, based on a factor amount.
     * @param c The base color.
     * @param r The random generator.
     * @param factor The amount to differenciate by.
     * @return A random color based on parameters.
     */
    public static Color getRelatedRandomColor(Color c, Random r, int factor) {
        //return new Color(colorSnap(c.getRed() + getRand(r,-factor, factor)),colorSnap(c.getGreen() + getRand(r,-factor, factor))
        //   ,colorSnap(c.getBlue() + getRand(r,-factor, factor)),colorSnap(c.getAlpha() + getRand(r,-factor, factor)));
        int red = colorSnap(c.getRed() + getRand(r, -1 * factor, factor));
        int green = colorSnap(c.getGreen()
                + getRand(r, -1 * factor, factor));
        int blue = colorSnap(c.getBlue() + getRand(r, -1 * factor, factor));
        return new Color(red, green, blue);
    }

    /**
     * Snaps the color value within the byte range (0-255)
     * @param rgbavalue The value to snap.
     * @return The snapped value.
     */
    public static int colorSnap(int rgbavalue) {
        if (rgbavalue > 255)
            rgbavalue = 255;
        if (rgbavalue < 0)
            rgbavalue = 0;
        return rgbavalue;
    }

    private static int getRand(Random r, int min, int max) {
        return r.nextInt(max - min) + min;
    }
}

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