VMapManager2.h

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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 _VMAPMANAGER2_H
#define _VMAPMANAGER2_H
 
#include <mutex>
#include <unordered_map>
#include <vector>
#include "Define.h"
#include "IVMapManager.h"
 
//===========================================================
 
#define MAP_FILENAME_EXTENSION2 ".vmtree"
 
#define FILENAMEBUFFER_SIZE 500
 
//===========================================================
 
namespace G3D
{
    class Vector3;
}
 
namespace VMAP
{
    class StaticMapTree;
    class WorldModel;
 
    class TC_COMMON_API ManagedModel
    {
        public:
            ManagedModel() : iModel(nullptr), iRefCount(0) { }
            void setModel(WorldModel* model) { iModel = model; }
            WorldModel* getModel() { return iModel; }
            void incRefCount() { ++iRefCount; }
            int decRefCount() { return --iRefCount; }
        protected:
            WorldModel* iModel;
            int iRefCount;
    };
 
    typedef std::unordered_map<uint32, StaticMapTree*> InstanceTreeMap;
    typedef std::unordered_map<std::string, ManagedModel> ModelFileMap;
 
    enum DisableTypes
    {
        VMAP_DISABLE_AREAFLAG       = 0x1,
        VMAP_DISABLE_HEIGHT         = 0x2,
        VMAP_DISABLE_LOS            = 0x4,
        VMAP_DISABLE_LIQUIDSTATUS   = 0x8
    };
 
    class TC_COMMON_API VMapManager2 : public IVMapManager
    {
        protected:
            // Tree to check collision
            ModelFileMap iLoadedModelFiles;
            InstanceTreeMap iInstanceMapTrees;
            bool thread_safe_environment;
            // Mutex for iLoadedModelFiles
            std::mutex LoadedModelFilesLock;
 
            bool _loadMap(uint32 mapId, const std::string& basePath, uint32 tileX, uint32 tileY);
            /* void _unloadMap(uint32 pMapId, uint32 x, uint32 y); */
 
            static uint32 GetLiquidFlagsDummy(uint32) { return 0; }
            static bool IsVMAPDisabledForDummy(uint32 /*entry*/, uint8 /*flags*/) { return false; }
 
            InstanceTreeMap::const_iterator GetMapTree(uint32 mapId) const;
 
        public:
            // public for debug
            G3D::Vector3 convertPositionToInternalRep(float x, float y, float z) const;
            static std::string getMapFileName(unsigned int mapId);
 
            VMapManager2();
            ~VMapManager2(void);
 
            void InitializeThreadUnsafe(const std::vector<uint32>& mapIds);
            int loadMap(char const* pBasePath, unsigned int mapId, int x, int y) override;
 
            void unloadMap(unsigned int mapId, int x, int y) override;
            void unloadMap(unsigned int mapId) override;
 
            bool isInLineOfSight(unsigned int mapId, float x1, float y1, float z1, float x2, float y2, float z2, ModelIgnoreFlags ignoreFlags) override ;
            bool getObjectHitPos(unsigned int mapId, float x1, float y1, float z1, float x2, float y2, float z2, float& rx, float& ry, float& rz, float modifyDist) override;
            float getHeight(unsigned int mapId, float x, float y, float z, float maxSearchDist) override;
 
            bool processCommand(char* /*command*/) override { return false; } // for debug and extensions
 
            bool getAreaAndLiquidData(uint32 mapId, float x, float y, float z, Optional<uint8> reqLiquidType, AreaAndLiquidData& data) const override;
 
            WorldModel* acquireModelInstance(const std::string& basepath, const std::string& filename, uint32 flags = 0);
            void releaseModelInstance(const std::string& filename);
 
            // what's the use of this? o.O
            virtual std::string getDirFileName(unsigned int mapId, int /*x*/, int /*y*/) const override
            {
                return getMapFileName(mapId);
            }
            virtual LoadResult existsMap(char const* basePath, unsigned int mapId, int x, int y) override;
 
            void getInstanceMapTree(InstanceTreeMap &instanceMapTree);
 
            typedef uint32(*GetLiquidFlagsFn)(uint32 liquidType);
            GetLiquidFlagsFn GetLiquidFlagsPtr;
 
            typedef bool(*IsVMAPDisabledForFn)(uint32 entry, uint8 flags);
            IsVMAPDisabledForFn IsVMAPDisabledForPtr;
    };
}
 
#endif