tmx_477adc1.cpp

class TMXMapLoader : public pugi::xml_tree_walker {
public:
  // code truncated...
  bool Load(pugi::xml_document &xmlDoc) {
    pugi::xml_node mapNode = xmlDoc.child("map");

    // first load all tileset(s) in background(s)
    bool backgroundsOk = LoadTilesets(mapNode, "background");
    if(!backgroundsOk)
      return false;

    // now load map, backgrounds are available for setting room.tile and/or room.background
    bool roomOk = LoadMap(mapNode, "room");
    if(!roomOk)
      return false;

    return true;
  }
  // code truncated...
};

std::unique_ptr<buffers::Project> TMXFileFormat::LoadProject(const fs::path& fPath) const {
  pugi::xml_document doc;
  if(!doc.load_file(fPath.c_str())) return nullptr;

  // code truncated...

  TMXMapLoader mapWalker(game->mutable_root(), fPath);

  bool success = mapWalker.Load(doc);
  if(!success){
    std::cout<<"Error occured while loading selected Tiled map"<<std::endl;
    return NULL;
  }

  return proj;
}