//
//  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
//
//  -------------------------------------------------------------------------
//
//  Sparks
//
// $Id$
//
#ifndef SPARKS_H

#define SPARKS_H

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

class Sparks
    {
    public:
    	Sparks(int num, GLfloat alpha_dec, GLfloat alpha_min,
	       int len, GLfloat delta);
	virtual ~Sparks();

	void add(GLfloat ox, GLfloat oy, GLfloat oz);

	void draw();

	void update();

    private:
    	struct Point
	    {
	    GLfloat	x1,y1,z1;
	    GLfloat	x2,y2,z2;
	    GLfloat	dx,dy,dz;
	    GLfloat	alpha;
	    int		life;
	    };

	list<Point>		m_list;

	int			m_num;
	GLfloat			m_alpha_min;
	GLfloat			m_alpha_dec;
	int			m_life;
	int			m_len;
	GLfloat			m_delta;
    };

#endif

// END OF FILE //