9 files changed, 526 insertions, 0 deletions

diff --git a/src/server/collision/CMakeLists.txt b/src/server/collision/CMakeLists.txt
index 62af7dd081e..b4012b63812 100644
--- a/src/server/collision/CMakeLists.txt
+++ b/src/server/collision/CMakeLists.txt
@@ -33,7 +33,9 @@ set(collision_STAT_SRCS
 include_directories(
   ${CMAKE_BINARY_DIR}
   ${CMAKE_SOURCE_DIR}/dep/g3dlite/include
+  ${CMAKE_SOURCE_DIR}/dep/recastnavigation/Detour
   ${CMAKE_SOURCE_DIR}/src/server/shared
+  ${CMAKE_SOURCE_DIR}/src/server/shared/Configuration
   ${CMAKE_SOURCE_DIR}/src/server/shared/Debugging
   ${CMAKE_SOURCE_DIR}/src/server/shared/Database
   ${CMAKE_SOURCE_DIR}/src/server/shared/Debugging
diff --git a/src/server/collision/Management/MMapFactory.cpp b/src/server/collision/Management/MMapFactory.cpp
new file mode 100644
index 00000000000..f4b2f3d47e4
--- /dev/null
+++ b/src/server/collision/Management/MMapFactory.cpp
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2008-2011 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/>.
+ */
+
+#include "MMapFactory.h"
+#include "World.h"
+#include "Config.h"
+#include <set>
+
+namespace MMAP
+{
+    // ######################## MMapFactory ########################
+    // our global singleton copy
+    MMapManager *g_MMapManager = NULL;
+
+    // stores list of mapids which do not use pathfinding
+    std::set<uint32>* g_mmapDisabledIds = NULL;
+
+    MMapManager* MMapFactory::createOrGetMMapManager()
+    {
+        if (g_MMapManager == NULL)
+            g_MMapManager = new MMapManager();
+
+        return g_MMapManager;
+    }
+
+    void MMapFactory::preventPathfindingOnMaps(const char* ignoreMapIds)
+    {
+        if (!g_mmapDisabledIds)
+            g_mmapDisabledIds = new std::set<uint32>();
+
+        uint32 strLenght = strlen(ignoreMapIds)+1;
+        char* mapList = new char[strLenght];
+        memcpy(mapList, ignoreMapIds, sizeof(char)*strLenght);
+
+        char* idstr = strtok(mapList, ",");
+        while (idstr)
+        {
+            g_mmapDisabledIds->insert(uint32(atoi(idstr)));
+            idstr = strtok(NULL, ",");
+        }
+
+        delete[] mapList;
+    }
+
+    bool MMapFactory::IsPathfindingEnabled(uint32 mapId)
+    {
+        return sWorld->getBoolConfig(CONFIG_ENABLE_MMAPS)
+            && g_mmapDisabledIds->find(mapId) == g_mmapDisabledIds->end();
+    }
+
+    void MMapFactory::clear()
+    {
+        if (g_mmapDisabledIds)
+        {
+            delete g_mmapDisabledIds;
+            g_mmapDisabledIds = NULL;
+        }
+
+        if (g_MMapManager)
+        {
+            delete g_MMapManager;
+            g_MMapManager = NULL;
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/server/collision/Management/MMapFactory.h b/src/server/collision/Management/MMapFactory.h
new file mode 100644
index 00000000000..ab047333a19
--- /dev/null
+++ b/src/server/collision/Management/MMapFactory.h
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2008-2011 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 _MMAP_FACTORY_H
+#define _MMAP_FACTORY_H
+
+#include "MMapManager.h"
+#include "UnorderedMap.h"
+#include "DetourAlloc.h"
+#include "DetourNavMesh.h"
+#include "DetourNavMeshQuery.h"
+
+namespace MMAP
+{
+    enum MMAP_LOAD_RESULT
+    {
+        MMAP_LOAD_RESULT_ERROR,
+        MMAP_LOAD_RESULT_OK,
+        MMAP_LOAD_RESULT_IGNORED,
+    };
+
+    // static class
+    // holds all mmap global data
+    // access point to MMapManager singleton
+    class MMapFactory
+    {
+        public:
+            static MMapManager* createOrGetMMapManager();
+            static void clear();
+            static void preventPathfindingOnMaps(const char* ignoreMapIds);
+            static bool IsPathfindingEnabled(uint32 mapId);
+    };
+}
+
+#endif
+
diff --git a/src/server/collision/Management/MMapManager.cpp b/src/server/collision/Management/MMapManager.cpp
new file mode 100644
index 00000000000..c7dea358d92
--- /dev/null
+++ b/src/server/collision/Management/MMapManager.cpp
@@ -0,0 +1,298 @@
+/*
+ * Copyright (C) 2008-2011 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/>.
+ */
+
+#include "MMapManager.h"
+#include "Log.h"
+#include "World.h"
+
+namespace MMAP
+{
+    // ######################## MMapManager ########################
+    MMapManager::~MMapManager()
+    {
+        for (MMapDataSet::iterator i = loadedMMaps.begin(); i != loadedMMaps.end(); ++i)
+            delete i->second;
+
+        // by now we should not have maps loaded
+        // if we had, tiles in MMapData->mmapLoadedTiles, their actual data is lost!
+    }
+
+    bool MMapManager::loadMapData(uint32 mapId)
+    {
+        // we already have this map loaded?
+        if (loadedMMaps.find(mapId) != loadedMMaps.end())
+            return true;
+
+        // load and init dtNavMesh - read parameters from file
+        uint32 pathLen = sWorld->GetDataPath().length() + strlen("mmaps/%03i.mmap")+1;
+        char *fileName = new char[pathLen];
+        snprintf(fileName, pathLen, (sWorld->GetDataPath()+"mmaps/%03i.mmap").c_str(), mapId);
+
+        FILE* file = fopen(fileName, "rb");
+        if (!file)
+        {
+            sLog->outDebug(LOG_FILTER_MAPS, "MMAP:loadMapData: Error: Could not open mmap file '%s'", fileName);
+            delete [] fileName;
+            return false;
+        }
+
+        dtNavMeshParams params;
+        fread(&params, sizeof(dtNavMeshParams), 1, file);
+        fclose(file);
+
+        dtNavMesh* mesh = dtAllocNavMesh();
+        ASSERT(mesh);
+        if (DT_SUCCESS != mesh->init(&params))
+        {
+            dtFreeNavMesh(mesh);
+            sLog->outError(LOG_FILTER_MAPS, "MMAP:loadMapData: Failed to initialize dtNavMesh for mmap %03u from file %s", mapId, fileName);
+            delete [] fileName;
+            return false;
+        }
+
+        delete [] fileName;
+
+        sLog->outInfo(LOG_FILTER_MAPS, "MMAP:loadMapData: Loaded %03i.mmap", mapId);
+
+        // store inside our map list
+        MMapData* mmap_data = new MMapData(mesh);
+        mmap_data->mmapLoadedTiles.clear();
+
+        loadedMMaps.insert(std::pair<uint32, MMapData*>(mapId, mmap_data));
+        return true;
+    }
+
+    uint32 MMapManager::packTileID(int32 x, int32 y)
+    {
+        return uint32(x << 16 | y);
+    }
+
+    bool MMapManager::loadMap(const std::string& basePath, uint32 mapId, int32 x, int32 y)
+    {
+        // make sure the mmap is loaded and ready to load tiles
+        if (!loadMapData(mapId))
+            return false;
+
+        // get this mmap data
+        MMapData* mmap = loadedMMaps[mapId];
+        ASSERT(mmap->navMesh);
+
+        // check if we already have this tile loaded
+        uint32 packedGridPos = packTileID(x, y);
+        if (mmap->mmapLoadedTiles.find(packedGridPos) != mmap->mmapLoadedTiles.end())
+            return false;
+
+        // load this tile :: mmaps/MMMXXYY.mmtile
+        uint32 pathLen = sWorld->GetDataPath().length() + strlen("mmaps/%03i%02i%02i.mmtile")+1;
+        char *fileName = new char[pathLen];
+
+        snprintf(fileName, pathLen, (sWorld->GetDataPath()+"mmaps/%03i%02i%02i.mmtile").c_str(), mapId, x, y);
+
+        FILE *file = fopen(fileName, "rb");
+        if (!file)
+        {
+            sLog->outDebug(LOG_FILTER_MAPS, "MMAP:loadMap: Could not open mmtile file '%s'", fileName);
+            delete [] fileName;
+            return false;
+        }
+        delete [] fileName;
+
+        // read header
+        MmapTileHeader fileHeader;
+        fread(&fileHeader, sizeof(MmapTileHeader), 1, file);
+
+        if (fileHeader.mmapMagic != MMAP_MAGIC)
+        {
+            sLog->outError(LOG_FILTER_MAPS, "MMAP:loadMap: Bad header in mmap %03u%02i%02i.mmtile", mapId, x, y);
+            return false;
+        }
+
+        if (fileHeader.mmapVersion != MMAP_VERSION)
+        {
+            sLog->outError(LOG_FILTER_MAPS, "MMAP:loadMap: %03u%02i%02i.mmtile was built with generator v%i, expected v%i",
+                mapId, x, y, fileHeader.mmapVersion, MMAP_VERSION);
+            return false;
+        }
+
+        unsigned char* data = (unsigned char*)dtAlloc(fileHeader.size, DT_ALLOC_PERM);
+        ASSERT(data);
+
+        size_t result = fread(data, fileHeader.size, 1, file);
+        if (!result)
+        {
+            sLog->outError(LOG_FILTER_MAPS, "MMAP:loadMap: Bad header or data in mmap %03u%02i%02i.mmtile", mapId, x, y);
+            fclose(file);
+            return false;
+        }
+
+        fclose(file);
+
+        dtMeshHeader* header = (dtMeshHeader*)data;
+        dtTileRef tileRef = 0;
+
+        // memory allocated for data is now managed by detour, and will be deallocated when the tile is removed
+        if (DT_SUCCESS == mmap->navMesh->addTile(data, fileHeader.size, DT_TILE_FREE_DATA, 0, &tileRef))
+        {
+            mmap->mmapLoadedTiles.insert(std::pair<uint32, dtTileRef>(packedGridPos, tileRef));
+            ++loadedTiles;
+            sLog->outInfo(LOG_FILTER_MAPS, "MMAP:loadMap: Loaded mmtile %03i[%02i,%02i] into %03i[%02i,%02i]", mapId, x, y, mapId, header->x, header->y);
+            return true;
+        }
+        else
+        {
+            sLog->outError(LOG_FILTER_MAPS, "MMAP:loadMap: Could not load %03u%02i%02i.mmtile into navmesh", mapId, x, y);
+            dtFree(data);
+            return false;
+        }
+
+        return false;
+    }
+
+    bool MMapManager::unloadMap(uint32 mapId, int32 x, int32 y)
+    {
+        // check if we have this map loaded
+        if (loadedMMaps.find(mapId) == loadedMMaps.end())
+        {
+            // file may not exist, therefore not loaded
+            sLog->outDebug(LOG_FILTER_MAPS, "MMAP:unloadMap: Asked to unload not loaded navmesh map. %03u%02i%02i.mmtile", mapId, x, y);
+            return false;
+        }
+
+        MMapData* mmap = loadedMMaps[mapId];
+
+        // check if we have this tile loaded
+        uint32 packedGridPos = packTileID(x, y);
+        if (mmap->mmapLoadedTiles.find(packedGridPos) == mmap->mmapLoadedTiles.end())
+        {
+            // file may not exist, therefore not loaded
+            sLog->outDebug(LOG_FILTER_MAPS, "MMAP:unloadMap: Asked to unload not loaded navmesh tile. %03u%02i%02i.mmtile", mapId, x, y);
+            return false;
+        }
+
+        dtTileRef tileRef = mmap->mmapLoadedTiles[packedGridPos];
+
+        // unload, and mark as non loaded
+        if (DT_SUCCESS != mmap->navMesh->removeTile(tileRef, NULL, NULL))
+        {
+            // this is technically a memory leak
+            // if the grid is later reloaded, dtNavMesh::addTile will return error but no extra memory is used
+            // we cannot recover from this error - assert out
+            sLog->outError(LOG_FILTER_MAPS, "MMAP:unloadMap: Could not unload %03u%02i%02i.mmtile from navmesh", mapId, x, y);
+            ASSERT(false);
+        }
+        else
+        {
+            mmap->mmapLoadedTiles.erase(packedGridPos);
+            --loadedTiles;
+            sLog->outInfo(LOG_FILTER_MAPS, "MMAP:unloadMap: Unloaded mmtile %03i[%02i,%02i] from %03i", mapId, x, y, mapId);
+            return true;
+        }
+
+        return false;
+    }
+
+    bool MMapManager::unloadMap(uint32 mapId)
+    {
+        if (loadedMMaps.find(mapId) == loadedMMaps.end())
+        {
+            // file may not exist, therefore not loaded
+            sLog->outDebug(LOG_FILTER_MAPS, "MMAP:unloadMap: Asked to unload not loaded navmesh map %03u", mapId);
+            return false;
+        }
+
+        // unload all tiles from given map
+        MMapData* mmap = loadedMMaps[mapId];
+        for (MMapTileSet::iterator i = mmap->mmapLoadedTiles.begin(); i != mmap->mmapLoadedTiles.end(); ++i)
+        {
+            uint32 x = (i->first >> 16);
+            uint32 y = (i->first & 0x0000FFFF);
+            if (DT_SUCCESS != mmap->navMesh->removeTile(i->second, NULL, NULL))
+                sLog->outError(LOG_FILTER_MAPS, "MMAP:unloadMap: Could not unload %03u%02i%02i.mmtile from navmesh", mapId, x, y);
+            else
+            {
+                --loadedTiles;
+                sLog->outInfo(LOG_FILTER_MAPS, "MMAP:unloadMap: Unloaded mmtile %03i[%02i,%02i] from %03i", mapId, x, y, mapId);
+            }
+        }
+
+        delete mmap;
+        loadedMMaps.erase(mapId);
+        sLog->outInfo(LOG_FILTER_MAPS, "MMAP:unloadMap: Unloaded %03i.mmap", mapId);
+
+        return true;
+    }
+
+    bool MMapManager::unloadMapInstance(uint32 mapId, uint32 instanceId)
+    {
+        // check if we have this map loaded
+        if (loadedMMaps.find(mapId) == loadedMMaps.end())
+        {
+            // file may not exist, therefore not loaded
+            sLog->outDebug(LOG_FILTER_MAPS, "MMAP:unloadMapInstance: Asked to unload not loaded navmesh map %03u", mapId);
+            return false;
+        }
+
+        MMapData* mmap = loadedMMaps[mapId];
+        if (mmap->navMeshQueries.find(instanceId) == mmap->navMeshQueries.end())
+        {
+            sLog->outDebug(LOG_FILTER_MAPS, "MMAP:unloadMapInstance: Asked to unload not loaded dtNavMeshQuery mapId %03u instanceId %u", mapId, instanceId);
+            return false;
+        }
+
+        dtNavMeshQuery* query = mmap->navMeshQueries[instanceId];
+
+        dtFreeNavMeshQuery(query);
+        mmap->navMeshQueries.erase(instanceId);
+        sLog->outInfo(LOG_FILTER_MAPS, "MMAP:unloadMapInstance: Unloaded mapId %03u instanceId %u", mapId, instanceId);
+
+        return true;
+    }
+
+    dtNavMesh const* MMapManager::GetNavMesh(uint32 mapId)
+    {
+        if (loadedMMaps.find(mapId) == loadedMMaps.end())
+            return NULL;
+
+        return loadedMMaps[mapId]->navMesh;
+    }
+
+    dtNavMeshQuery const* MMapManager::GetNavMeshQuery(uint32 mapId, uint32 instanceId)
+    {
+        if (loadedMMaps.find(mapId) == loadedMMaps.end())
+            return NULL;
+
+        MMapData* mmap = loadedMMaps[mapId];
+        if (mmap->navMeshQueries.find(instanceId) == mmap->navMeshQueries.end())
+        {
+            // allocate mesh query
+            dtNavMeshQuery* query = dtAllocNavMeshQuery();
+            ASSERT(query);
+            if (DT_SUCCESS != query->init(mmap->navMesh, 1024))
+            {
+                dtFreeNavMeshQuery(query);
+                sLog->outError(LOG_FILTER_MAPS, "MMAP:GetNavMeshQuery: Failed to initialize dtNavMeshQuery for mapId %03u instanceId %u", mapId, instanceId);
+                return NULL;
+            }
+
+            sLog->outInfo(LOG_FILTER_MAPS, "MMAP:GetNavMeshQuery: created dtNavMeshQuery for mapId %03u instanceId %u", mapId, instanceId);
+            mmap->navMeshQueries.insert(std::pair<uint32, dtNavMeshQuery*>(instanceId, query));
+        }
+
+        return mmap->navMeshQueries[instanceId];
+    }
+}
diff --git a/src/server/collision/Management/MMapManager.h b/src/server/collision/Management/MMapManager.h
new file mode 100644
index 00000000000..23b7d5fc6f8
--- /dev/null
+++ b/src/server/collision/Management/MMapManager.h
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2008-2011 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 _MMAP_MANAGER_H
+#define _MMAP_MANAGER_H
+
+#include "UnorderedMap.h"
+#include "DetourAlloc.h"
+#include "DetourNavMesh.h"
+#include "DetourNavMeshQuery.h"
+
+//  move map related classes
+namespace MMAP
+{
+    typedef UNORDERED_MAP<uint32, dtTileRef> MMapTileSet;
+    typedef UNORDERED_MAP<uint32, dtNavMeshQuery*> NavMeshQuerySet;
+
+    // dummy struct to hold map's mmap data
+    struct MMapData
+    {
+        MMapData(dtNavMesh* mesh) : navMesh(mesh) {}
+        ~MMapData()
+        {
+            for (NavMeshQuerySet::iterator i = navMeshQueries.begin(); i != navMeshQueries.end(); ++i)
+                dtFreeNavMeshQuery(i->second);
+
+            if (navMesh)
+                dtFreeNavMesh(navMesh);
+        }
+
+        dtNavMesh* navMesh;
+
+        // we have to use single dtNavMeshQuery for every instance, since those are not thread safe
+        NavMeshQuerySet navMeshQueries;     // instanceId to query
+        MMapTileSet mmapLoadedTiles;        // maps [map grid coords] to [dtTile]
+    };
+
+
+    typedef UNORDERED_MAP<uint32, MMapData*> MMapDataSet;
+
+    // singleton class
+    // holds all all access to mmap loading unloading and meshes
+    class MMapManager
+    {
+        public:
+            MMapManager() : loadedTiles(0) {}
+            ~MMapManager();
+
+            bool loadMap(const std::string& basePath, uint32 mapId, int32 x, int32 y);
+            bool unloadMap(uint32 mapId, int32 x, int32 y);
+            bool unloadMap(uint32 mapId);
+            bool unloadMapInstance(uint32 mapId, uint32 instanceId);
+
+            // the returned [dtNavMeshQuery const*] is NOT threadsafe
+            dtNavMeshQuery const* GetNavMeshQuery(uint32 mapId, uint32 instanceId);
+            dtNavMesh const* GetNavMesh(uint32 mapId);
+
+            uint32 getLoadedTilesCount() const { return loadedTiles; }
+            uint32 getLoadedMapsCount() const { return loadedMMaps.size(); }
+        private:
+            bool loadMapData(uint32 mapId);
+            uint32 packTileID(int32 x, int32 y);
+
+            MMapDataSet loadedMMaps;
+            uint32 loadedTiles;
+    };
+}
+
+#endif
\ No newline at end of file
diff --git a/src/server/collision/Management/VMapManager2.h b/src/server/collision/Management/VMapManager2.h
index e2e9965dbfc..51f15f0fda4 100644
--- a/src/server/collision/Management/VMapManager2.h
+++ b/src/server/collision/Management/VMapManager2.h
@@ -112,6 +112,8 @@ namespace VMAP
                 return getMapFileName(mapId);
             }
             virtual bool existsMap(const char* basePath, unsigned int mapId, int x, int y);
+        public:
+            void getInstanceMapTree(InstanceTreeMap &instanceMapTree);
     };
 }
 
diff --git a/src/server/collision/Maps/MapTree.h b/src/server/collision/Maps/MapTree.h
index bd928d85c5a..c8e9628dff1 100644
--- a/src/server/collision/Maps/MapTree.h
+++ b/src/server/collision/Maps/MapTree.h
@@ -80,6 +80,7 @@ namespace VMAP
             void UnloadMapTile(uint32 tileX, uint32 tileY, VMapManager2* vm);
             bool isTiled() const { return iIsTiled; }
             uint32 numLoadedTiles() const { return iLoadedTiles.size(); }
+            void getModelInstances(ModelInstance* &models, uint32 &count);
     };
 
     struct AreaInfo
diff --git a/src/server/collision/Models/ModelInstance.h b/src/server/collision/Models/ModelInstance.h
index 5af02a1d1b1..6d1b7c68bd5 100644
--- a/src/server/collision/Models/ModelInstance.h
+++ b/src/server/collision/Models/ModelInstance.h
@@ -74,6 +74,8 @@ namespace VMAP
             G3D::Matrix3 iInvRot;
             float iInvScale;
             WorldModel* iModel;
+        public:
+            WorldModel* const getWorldModel();
     };
 } // namespace VMAP
 
diff --git a/src/server/collision/Models/WorldModel.h b/src/server/collision/Models/WorldModel.h
index 8e046e561f7..ade9efbb040 100644
--- a/src/server/collision/Models/WorldModel.h
+++ b/src/server/collision/Models/WorldModel.h
@@ -66,6 +66,8 @@ namespace VMAP
             uint32 iType;    //!< liquid type
             float *iHeight;  //!< (tilesX + 1)*(tilesY + 1) height values
             uint8 *iFlags;   //!< info if liquid tile is used
+        public:
+            void getPosInfo(uint32 &tilesX, uint32 &tilesY, Vector3 &corner) const;
     };
 
     /*! holding additional info for WMO group files */
@@ -98,6 +100,8 @@ namespace VMAP
             std::vector<MeshTriangle> triangles;
             BIH meshTree;
             WmoLiquid* iLiquid;
+        public:
+            void getMeshData(std::vector<Vector3> &vertices, std::vector<MeshTriangle> &triangles, WmoLiquid* &liquid);
     };
     /*! Holds a model (converted M2 or WMO) in its original coordinate space */
     class WorldModel
@@ -117,6 +121,8 @@ namespace VMAP
             uint32 RootWMOID;
             std::vector<GroupModel> groupModels;
             BIH groupTree;
+        public:
+            void getGroupModels(std::vector<GroupModel> &groupModels);
     };
 } // namespace VMAP