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/*
Minetest
Copyright (C) 2010-2013 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#pragma once
#include <string>
class Settings;
struct NoiseParams;
struct MapgenParams;
/*
MapSettingsManager is a centralized object for management (creating,
loading, storing, saving, etc.) of config settings related to the Map.
It has two phases: the initial r/w "gather and modify settings" state, and
the final r/o "read and save settings" state.
The typical use case is, in order, as follows:
- Create a MapSettingsManager object
- Try to load map metadata into it from the metadata file
- Manually view and modify the current configuration as desired through a
Settings-like interface
- When all modifications are finished, create a 'Parameters' object
containing the finalized, active parameters. This could be passed along
to whichever Map-related objects that may require it.
- Save these active settings to the metadata file when requested
*/
class MapSettingsManager {
public:
MapSettingsManager(Settings *user_settings,
const std::string &map_meta_path);
~MapSettingsManager();
// Finalized map generation parameters
MapgenParams *mapgen_params = nullptr;
bool getMapSetting(const std::string &name, std::string *value_out);
bool getMapSettingNoiseParams(
const std::string &name, NoiseParams *value_out);
// Note: Map config becomes read-only after makeMapgenParams() gets called
// (i.e. mapgen_params is non-NULL). Attempts to set map config after
// params have been finalized will result in failure.
bool setMapSetting(const std::string &name,
const std::string &value, bool override_meta = false);
bool setMapSettingNoiseParams(const std::string &name,
const NoiseParams *value, bool override_meta = false);
bool loadMapMeta();
bool saveMapMeta();
MapgenParams *makeMapgenParams();
private:
std::string m_map_meta_path;
Settings *m_map_settings;
Settings *m_user_settings;
};
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