eu.over9000.veya.rendering.Light.java Source code

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Here is the source code for eu.over9000.veya.rendering.Light.java

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/*
 * Veya
 * Copyright (C) 2015 s1mpl3x
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

package eu.over9000.veya.rendering;

import org.lwjgl.opengl.GL20;
import org.lwjgl.util.vector.Vector3f;

import eu.over9000.veya.Veya;

public class Light {
    private int lightPositionLocation;
    private int lightColorLocation;
    private int lightFactorsLocation;

    private float x;
    private float y;
    private float z;

    private float r;
    private float g;
    private float b;

    private float ambient;
    private float diffuse;
    private float specular;

    public Light(final float posX, final float posY, final float posZ, final float r, final float g, final float b,
            final float ambient, final float diffuse, final float specular) {
        this.x = posX;
        this.y = posY;
        this.z = posZ;
        this.r = r;
        this.g = g;
        this.b = b;
        this.ambient = ambient;
        this.diffuse = diffuse;
        this.specular = specular;
    }

    public void init() {
        this.lightPositionLocation = Veya.program_normal.getUniformLocation("lightPosition");
        this.lightColorLocation = Veya.program_normal.getUniformLocation("lightColor");
        this.lightFactorsLocation = Veya.program_normal.getUniformLocation("lightFactors");

        GL20.glUniform3f(this.lightPositionLocation, this.x, this.y, this.z);
        GL20.glUniform3f(this.lightColorLocation, this.r, this.g, this.b);
        GL20.glUniform3f(this.lightFactorsLocation, this.ambient, this.diffuse, this.specular);
    }

    public void updateLightFactors(final float ambient, final float diffuse, final float specular) {
        this.ambient = ambient;
        this.diffuse = diffuse;
        this.specular = specular;

        GL20.glUniform3f(this.lightFactorsLocation, this.ambient, this.diffuse, this.specular);
    }

    public void updateLightPosition(final float posX, final float posY, final float posZ) {
        this.x = posX;
        this.y = posY;
        this.z = posZ;

        GL20.glUniform3f(this.lightPositionLocation, this.x, this.y, this.z);
    }

    public void updateLightColor(final float r, final float g, final float b) {
        this.r = r;
        this.g = g;
        this.b = b;

        GL20.glUniform3f(this.lightColorLocation, this.r, this.g, this.b);
    }

    public float getX() {
        return x;
    }

    public float getY() {
        return y;
    }

    public float getZ() {
        return z;
    }

    public Vector3f getPosition() {
        return new Vector3f(x, y, z);
    }
}