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/*
* This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef _MMAP_MANAGER_H
#define _MMAP_MANAGER_H
#include "Define.h"
#include "MMapDefines.h"
#include <DetourNavMeshQuery.h>
#include <memory>
#include <string_view>
#include <unordered_map>
#include <vector>
// move map related classes
namespace MMAP
{
struct MMapData;
typedef std::unordered_map<uint32, std::unique_ptr<MMapData>> MMapDataSet;
enum class LoadResult : uint8
{
Success,
AlreadyLoaded,
FileNotFound,
VersionMismatch,
ReadFromFileFailed,
LibraryError
};
// singleton class
// holds all all access to mmap loading unloading and meshes
class TC_MMAPS_COMMON_API MMapManager
{
public:
MMapManager();
MMapManager(MMapManager const& other) = delete;
MMapManager(MMapManager&& other) noexcept = delete;
MMapManager& operator=(MMapManager const& other) = delete;
MMapManager& operator=(MMapManager&& other) noexcept = delete;
~MMapManager();
static MMapManager* instance();
void InitializeThreadUnsafe(std::unordered_map<uint32, std::vector<uint32>> const& mapData);
static LoadResult parseNavMeshParamsFile(std::string_view basePath, uint32 mapId, dtNavMeshParams* params, std::vector<OffMeshData>* offmeshConnections = nullptr);
LoadResult loadMap(std::string_view basePath, uint32 mapId, uint32 instanceId, int32 x, int32 y);
bool loadMapInstance(std::string_view basePath, uint32 meshMapId, uint32 instanceMapId, uint32 instanceId);
void unloadMap(uint32 mapId, int32 x, int32 y);
void unloadMap(uint32 mapId);
void unloadMapInstance(uint32 meshMapId, uint32 instanceMapId, uint32 instanceId);
// the returned [dtNavMeshQuery const*] is NOT threadsafe
dtNavMeshQuery const* GetNavMeshQuery(uint32 meshMapId, uint32 instanceMapId, uint32 instanceId);
dtNavMesh* GetNavMesh(uint32 mapId, uint32 instanceId);
uint32 getLoadedTilesCount() const { return loadedTiles; }
uint32 getLoadedMapsCount() const { return uint32(loadedMMaps.size()); }
static bool isRebuildingTilesEnabledOnMap(uint32 mapId);
private:
LoadResult loadMapData(std::string_view basePath, uint32 mapId, uint32 instanceId);
uint32 packTileID(int32 x, int32 y);
MMapDataSet::const_iterator GetMMapData(uint32 mapId) const;
MMapDataSet loadedMMaps;
uint32 loadedTiles = 0;
std::unordered_map<uint32, uint32> parentMapData;
};
}
#endif
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