//
//  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
//
//  -------------------------------------------------------------------------
//
//  Particles
//
// $Id$
//
#ifndef PARTICLES_H

#define PARTICLES_H

#include "global.h"
#include <list>

class Particles
{
public:
    Particles(GLfloat alpha_dec, GLfloat alpha_min);
    virtual ~Particles();

    void add(GLfloat x1, GLfloat y1, GLfloat z1,
	     GLfloat x2, GLfloat y2, GLfloat z2,
	     GLfloat r, GLfloat g, GLfloat b);

    void draw();
    void update();

private:
    struct Point
    {
	GLfloat	r,g,b,a;
	GLfloat	x1,y1,z1;
	GLfloat	x2,y2,z2;
    };

    list<Point>		m_list;
    GLfloat		m_alpha_dec;
    GLfloat		m_alpha_min;
};

#endif

// END OF FILE //