VMapManager2.h

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/*
 * Copyright (C) 2008-2016 TrinityCore <http://www.trinitycore.org/>
 * Copyright (C) 2005-2010 MaNGOS <http://getmangos.com/>
 *
 * 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(std::unordered_map<uint32, std::vector<uint32>> const& mapData);
 int loadMap(const char* 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) 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 getAreaInfo(unsigned int pMapId, float x, float y, float& z, uint32& flags, int32& adtId, int32& rootId, int32& groupId) const override;
 bool GetLiquidLevel(uint32 pMapId, float x, float y, float z, uint8 reqLiquidType, float& level, float& floor, uint32& type) const override;

 WorldModel* acquireModelInstance(const std::string& basepath, const std::string& filename);
 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 bool existsMap(const char* 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