seventh.client.gfx.Colors.java Source code

Introduction

Here is the source code for seventh.client.gfx.Colors.java

Source

/*
 * see license.txt 
 */
package seventh.client.gfx;

import com.badlogic.gdx.graphics.Color;

import seventh.math.Vector3f;

/**
 * @author Tony
 *
 */
public class Colors {

    public static int subtract(int left, int right) {
        int r = ((left >> 16) & 0x000000ff) - ((right >> 16) & 0x000000ff);
        int g = ((left >> 8) & 0x000000ff) - ((right >> 8) & 0x000000ff);
        int b = ((left >> 0) & 0x000000ff) - ((right >> 0) & 0x000000ff);

        int result = 0xff000000 | (r << 16) | (g << 8) | (b << 0);
        return result;
    }

    /**
     * Sets the Alpha component of the color
     * @param color
     * @param alpha
     * @return the color merged with the supplied alpha
     */
    public static int setAlpha(int color, int alpha) {
        return (alpha << 24) | ((color << 8) >>> 8);
    }

    /**
     * Converts the {@link Vector3f} into a int color
     * @param v
     * @param alpha
     * @return the int color rgba
     */
    public static int toColor(Vector3f v, float alpha) {
        return Color.rgba8888(v.x, v.y, v.z, alpha);
    }

    public static int toColor(float r, float g, float b, float alpha) {
        int c = Color.rgba8888(r, g, b, alpha);
        return (c >>> 8) | (c << 24);
    }

    /**
     * Converts the {@link Vector3f} into a int color
     * @param v
     * @return the int color rgba
     */
    public static int toColor(Vector3f v) {
        return Color.rgba8888(v.x, v.y, v.z, 1.0f) << 16;
    }

    public static Vector3f toVector3f(int color) {
        Color c = new Color(color);
        return new Vector3f(c.r, c.g, c.b);
    }
}