Method load

Engine/source/navigation/navMesh.cpp:1527–1622

};

bool NavMesh::load()
{
   if(!dStrlen(mFileName))
      return false;

   FileStream stream;
   if(!stream.open(mFileName, Torque::FS::File::Read))
   {
      Con::errorf("Could not open file %s when loading navmesh %s.",
         mFileName, getName() ? getName() : getIdString());
      return false;
   }

   // Read header.
   NavMeshSetHeader header;
   stream.read(sizeof(NavMeshSetHeader), (char*)&header);
   if(header.magic != NAVMESHSET_MAGIC)
   {
      stream.close();
      Con::errorf("Navmesh magic incorrect when loading navmesh %s; possible corrupt navmesh file %s.",
         getName() ? getName() : getIdString(), mFileName);
      return false;
   }
   if(header.version != NAVMESHSET_VERSION)
   {
      stream.close();
      Con::errorf("Navmesh version incorrect when loading navmesh %s; possible corrupt navmesh file %s.",
         getName() ? getName() : getIdString(), mFileName);
      return false;
   }

   if(nm)
      dtFreeNavMesh(nm);
   nm = dtAllocNavMesh();
   if(!nm)
   {
      stream.close();
      Con::errorf("Out of memory when loading navmesh %s.",
         getName() ? getName() : getIdString());
      return false;
   }

   dtStatus status = nm->init(&header.params);
   if(dtStatusFailed(status))
   {
      stream.close();
      Con::errorf("Failed to initialise navmesh params when loading navmesh %s.",
         getName() ? getName() : getIdString());
      return false;
   }

   // Read tiles.
   for(U32 i = 0; i < header.numTiles; ++i)
   {
      NavMeshTileHeader tileHeader;
      stream.read(sizeof(NavMeshTileHeader), (char*)&tileHeader);
      if(!tileHeader.tileRef || !tileHeader.dataSize)
         break;