source: trunk/src/statistics.h @ 202

/***************************************************************************
 *   Copyright (C) 2006-2009 by Guy Rutenberg   *
 *   guyrutenberg@gmail.com   *
 *                                                                         *
 *   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.             *
 ***************************************************************************/

#ifndef OPENYAHTZEE_STATISTICS_INC
#define OPENYAHTZEE_STATISTICS_INC

#include "configuration.h"
#include <vector> 
#include <exception> 
namespace statistics {

class Statistics {
public:
        Statistics(configuration::Configuration *backend);
        /**
         * Records that a new game has been started.
         */
        void game_started();

        /**
         * Records that a game was ended.
         * \param score The score the game ended with.
         */
        void game_finished(int score);

        /**
         * Resets the statistics data.
         */
        void reset();

        int games_started() { return _games_started; }
        int games_finished() { return _games_finished; }
        time_t last_reset() { return _last_reset; }
        std::vector<int> score_distribution() { return _score_distribution; }

private:
        /**
         * Saves the current status of the statistics object.
         */
        void save();

        /**
         * Loads data from the backend.
         */
        void load_data();

        int _games_started;
        int _games_finished;
        time_t _last_reset;

        std::vector<int> _score_distribution;
        configuration::Configuration *backend;
};

class BadConfiguration : public std::exception {
        virtual const char* what() const throw()
        {
                return "Bad Configuration";
        }
};

const int score_distribution_granuality = 50;
// anything above the following score will be in the same slot
const int score_distribution_max = 500;
const int score_distributions_slots = score_distribution_max/score_distribution_granuality+1;

} //namespace

#endif