WeightedOptions.h

/*
 * Copyright 2012 OpenXcom Developers.
 *
 * This file is part of OpenXcom.
 *
 * OpenXcom 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 3 of the License, or
 * (at your option) any later version.
 *
 * OpenXcom 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 OpenXcom.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef OPENXCOM_WEIGHTEDOPTIONS_H
#define OPENXCOM_WEIGHTEDOPTIONS_H

#include <string>
#include <map>
#include <yaml-cpp/yaml.h>


namespace OpenXcom
{

class WeightedOptions
{
public:
    WeightedOptions() : _totalWeight(0) { /* Empty by design. */ }
    const std::string choose() const;
    const std::string top() const;
    void set(const std::string &id, size_t weight);
    bool empty() const { return 0 == _totalWeight; }
    void clear() { _totalWeight = 0; _choices.clear(); }
    void load(const YAML::Node &node);
    YAML::Node save() const;
private:
    std::map<std::string, size_t> _choices; 
    size_t _totalWeight; 
};

}
#endif