/*******************************************************************************
 * Breakout Cave Survey Visualizer
 *
 * Copyright (C) 2014 James Edwards
 *
 * jedwards8 at fastmail dot fm
 *
 * 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 org.andork.jogl.old;

import static org.andork.math3d.Vecmath.invAffineToTranspose3x3;
import static org.andork.math3d.Vecmath.mmul3x3;
import static org.andork.math3d.Vecmath.mmulAffine;
import static org.andork.math3d.Vecmath.newMat4f;

import org.andork.jogl.JoglDrawContext;

import com.jogamp.opengl.GL2ES2;

public class JOGLXformGroup extends JOGLGroup implements JOGLObject {
	public float[] xform = newMat4f();
	private float[] nxform = new float[9];
	private float[] m = newMat4f();
	private float[] n = new float[9];

	public JOGLXformGroup() {
		updateN();
	}

	@Override
	public void draw(GL2ES2 gl, float[] m, float[] n, float[] v, float[] p) {
		mmulAffine(m, xform, this.m);
		mmul3x3(n, nxform, this.n);

		super.draw(gl, this.m, this.n, v, p);
	}

	@Override
	public void draw(JoglDrawContext context, GL2ES2 gl, float[] m, float[] n) {
		mmulAffine(m, xform, this.m);
		mmul3x3(n, nxform, this.n);

		super.draw(context, gl, m, n);
	}

	public void updateN() {
		invAffineToTranspose3x3(xform, nxform);
	}
}