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//
//  glgrav - OpenGL N-Body gravity simulator
//
//  Copyright (C) 2003  Ian Cowburn (ianc@noddybox.demon.co.uk)
//
//  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
//  -------------------------------------------------------------------------
//
//  Matrix/vector handling
//
// $Id$
//
#ifndef MATRIX_H

#define MATRIX_H

#include "global.h"

template <class Ty> class Matrix
{
public:
    Matrix()
    {
	int a,b;

	for(a=0;a<3;a++)
	{
	    for(b=0;b<3;b++)
	    {
		mat[a][b]=0;
	    }
	}
    }

    ~Matrix()
    {
    }

    void identity()
    {
	int a,b;

	for(a=0;a<3;a++)
	{
	    for(b=0;b<3;b++)
	    {
		mat[a][b]=(a==b) ? 1:0;
	    }
	}
    }

    void set(Ty x, Ty y, Ty z)
    {
	identity();
	mat[0][0] = x;
	mat[1][1] = y;
	mat[2][2] = z;
	mat[3][3] = 1;
    }

    void get(Ty& x, Ty& y, Ty& z)
    {
	x = mat[0][0];
	y = mat[1][1];
	z = mat[2][2];
    }

    Matrix& operator*(Matrix<Ty>& m);

private:
    Ty	mat[4][4];
};

#endif

// END OF FILE //