Terrain.h

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/*
 * i6engine
 * Copyright (2016) Daniel Bonrath, Michael Baer, All rights reserved.
 *
 * This file is part of i6engine; i6engine 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 library 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 library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

#ifndef __I6ENGINE_MODULES_TERRAIN_H__
#define __I6ENGINE_MODULES_TERRAIN_H__

#include <cstdint>
#include <string>
#include <vector>

#include "i6engine/utils/i6eThreadSafety.h"

namespace Ogre {
        class Image;
        class Terrain;
        class TerrainGroup;
        class TerrainGlobalOptions;
} /* namespace Ogre */

namespace i6e {
namespace modules {

        class GraphicsManager;

        class ISIXE_MODULES_API Terrain {
        public:
                Terrain(GraphicsManager * manager, const std::string & heightmap, const double size, double inputScale, uint16_t vertices, const std::vector<std::tuple<double, std::string, std::string, double, double>> & layers, int64_t minX, int64_t minY, int64_t maxX, int64_t maxY);
                
                Terrain(GraphicsManager * manager, const std::vector<std::vector<double>> & heightdata, const double size, double inputScale, uint16_t vertices, const std::vector<std::tuple<double, std::string, std::string, double, double>> & layers, int64_t minX, int64_t minY, int64_t maxX, int64_t maxY);

                ~Terrain();

                void defineTerrainHeightmap(const int64_t x, const int64_t y);

                void defineTerrainHeightdata(const int64_t x, const int64_t y);

                void configureTerrainDefaults();

                void getTerrainImage(const bool flipX, const bool flipY, Ogre::Image & img);

                void initBlendMaps(Ogre::Terrain * terrain);

                inline Ogre::TerrainGroup * getTerrainGroup() const { return _mTerrainGroup; }

                inline Ogre::TerrainGlobalOptions * getTerrainGlobalOptions() const { return _mTerrainGlobals; }

                void setHeightAtPosition(uint64_t x, uint64_t z, double height);

                void saveCollisionShape(const std::string & outFile);

                bool isDirty() const {
                        return _dirty;
                }

                void update();

        private:
                GraphicsManager * _manager;

                Ogre::TerrainGroup * _mTerrainGroup;

                Ogre::TerrainGlobalOptions * _mTerrainGlobals;

                bool _mTerrainsImported;

                std::string _heightmap;

                std::vector<std::vector<double>> _heightdata;

                double _size;

                double _inputScale;

                uint16_t _vertices;

                std::vector<std::tuple<double, std::string, std::string, double, double>> _layers;

                int64_t _minX;
                int64_t _maxX;
                int64_t _minY;
                int64_t _maxY;

                bool _dirty;

                Terrain(const Terrain &) = delete;

                const Terrain & operator=(const Terrain &) = delete;

                ASSERT_THREAD_SAFETY_HEADER
        };

} /* namespace modules */
} /* namespace i6e */

#endif /* __I6ENGINE_MODULES_TERRAIN_H__ */