Try to check existance of mmaps folder.

src/server/collision/Management/MMapManager.cpp

@@ -82,10 +82,10 @@ namespace MMAP
         return uint32(x << 16 | y);
     }
 
-    bool MMapManager::loadMap(uint32 mapId, int32 x, int32 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))
+        if (!loadMapData(mapId))
             return false;
 
         // get this mmap data
@@ -95,10 +95,7 @@ namespace MMAP
         // check if we already have this tile loaded
         uint32 packedGridPos = packTileID(x, y);
         if (mmap->mmapLoadedTiles.find(packedGridPos) != mmap->mmapLoadedTiles.end())
-        {
-            //sLog->outError("MMAP:loadMap: Asked to load already loaded navmesh tile. %03u%02i%02i.mmtile", mapId, y, x);
             return false;
-        }
 
         // load this tile :: mmaps/MMMXXYY.mmtile
         uint32 pathLen = sWorld->GetDataPath().length() + strlen("mmaps/%03i%02i%02i.mmtile")+1;
@@ -136,7 +133,7 @@ namespace MMAP
         ASSERT(data);
 
         size_t result = fread(data, fileHeader.size, 1, file);
-        if(!result)
+        if (!result)
         {
             sLog->outError("MMAP:loadMap: Bad header or data in mmap %03u%02i%02i.mmtile", mapId, y, x);
             fclose(file);

src/server/collision/Management/MMapManager.h

@@ -61,7 +61,7 @@ namespace MMAP
             MMapManager() : loadedTiles(0) {}
             ~MMapManager();
 
-            bool loadMap(uint32 mapId, int32 x, int32 y);
+            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);

src/server/game/Maps/Map.cpp

@@ -124,7 +124,7 @@ bool Map::ExistVMap(uint32 mapid, int gx, int gy)
 void Map::LoadMMap(int gx, int gy)
 {
     // DONT CHANGE "gy" and "gx" - Its necessary !
-    int mmapLoadResult = MMAP::MMapFactory::createOrGetMMapManager()->loadMap(GetId(), gy, gx);
+    int mmapLoadResult = MMAP::MMapFactory::createOrGetMMapManager()->loadMap((sWorld->GetDataPath() + "mmaps").c_str(), GetId(), gy, gx);
     switch (mmapLoadResult)
     {
         case MMAP::MMAP_LOAD_RESULT_OK:

src/server/game/World/World.cpp

@@ -1123,8 +1123,10 @@ void World::LoadConfigSettings(bool reload)
         sLog->outString("Using DataDir %s", m_dataPath.c_str());
     }
 
-    m_bool_configs[CONFIG_VMAP_INDOOR_CHECK] = ConfigMgr::GetBoolDefault("vmap.enableIndoorCheck", 0);
     m_bool_configs[CONFIG_ENABLE_MMAPS] = ConfigMgr::GetBoolDefault("mmap.enablePathFinding", true);
+    sLog->outString("WORLD: MMap data directory is: %smmaps", m_dataPath.c_str());
+
+    m_bool_configs[CONFIG_VMAP_INDOOR_CHECK] = ConfigMgr::GetBoolDefault("vmap.enableIndoorCheck", 0);
     bool enableIndoor = ConfigMgr::GetBoolDefault("vmap.enableIndoorCheck", true);
     bool enableLOS = ConfigMgr::GetBoolDefault("vmap.enableLOS", true);
     bool enableHeight = ConfigMgr::GetBoolDefault("vmap.enableHeight", true);