#ifndef __CDistribution_HPP__
#define __CDistribution_HPP__

/* "Species" - a CoreWars evolver.  Copyright (C) 2003 'Varfar' 
 *
 * 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 1, 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.,
 * 675 Mass Ave, Cambridge, MA 02139, USA. 
 */

#include "ini.hpp"
#include <iostream>
#include <string>

class CDistribution { /* utility provides a very configurable random number with a bias */
	public:
		typedef CDistribution *(*ImplFactoryCallback)(const CDistribution &copy);
		static CDistribution *ImplFactory(const CDistribution &copy) { return new CDistribution(copy); }
		CDistribution(const std::string &context,const int min,const int max);
		~CDistribution();
		void set(const int min,const int max); // change this into a flat distribution between these points
		void read_ini(INIFile &ini,bool required = true);
		CDistribution *read_override_ini(INIFile &ini,ImplFactoryCallback factory=ImplFactory);
		void write_ini(std::ostream &os);
		void write_override_ini(std::ostream &os,const CDistribution *parent = 0);
		int rnd() const; /* return a random number within this distribution */
		int min() const { return _data[0]; }
		int max() const { return _data[_size-1]; }
		bool ok(const int val) const { return ((min() <= val) && (val < max())); }
	private:
		CDistribution();
		std::string _context;
		int	_size, /* number of points in the data */
			*_data; /* the actual series */
};

#endif // __CDistribution_HPP__