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diff --git a/src/common/Collision/Management/VMapManager2.h b/src/common/Collision/Management/VMapManager2.h
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+++ b/src/common/Collision/Management/VMapManager2.h
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+/*
+ * Copyright (C) 2008-2015 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
+
+/**
+This is the main Class to manage loading and unloading of maps, line of sight, height calculation and so on.
+For each map or map tile to load it reads a directory file that contains the ModelContainer files used by this map or map tile.
+Each global map or instance has its own dynamic BSP-Tree.
+The loaded ModelContainers are included in one of these BSP-Trees.
+Additionally a table to match map ids and map names is used.
+*/
+
+//===========================================================
+
+namespace G3D
+{
+    class Vector3;
+}
+
+namespace VMAP
+{
+    class StaticMapTree;
+    class WorldModel;
+
+    class 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 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 ;
+            /**
+            fill the hit pos and return true, if an object was hit
+            */
+            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;
+        public:
+            void getInstanceMapTree(InstanceTreeMap &instanceMapTree);
+
+            typedef uint32(*GetLiquidFlagsFn)(uint32 liquidType);
+            GetLiquidFlagsFn GetLiquidFlagsPtr;
+
+            typedef bool(*IsVMAPDisabledForFn)(uint32 entry, uint8 flags);
+            IsVMAPDisabledForFn IsVMAPDisabledForPtr;
+    };
+}
+
+#endif