ret.addRooms(XMLLoader.getRooms(root, ret));
ret.addPositions(XMLLoader.getPositions(root, ret));
ret.addAgents(XMLLoader.getAgents(root, ret));
ret.addItems(XMLLoader.getItems(root, ret));
ret.addLevelNotes(XMLLoader.getNotes(root));
ret.connectPositions();
return ret;
}