public void UpdateGraph(HashSet <int> dirty_nav_cells)
 {
     NavGridUpdater.UpdateNavGrid(NavTable, ValidNavTypes, Validators, boundingOffsets, maxLinksPerCell, Links, transitionsByNavType, dirty_nav_cells);
     if (OnNavGridUpdateComplete != null)
     {
         OnNavGridUpdateComplete(dirty_nav_cells);
     }
 }
 public void InitializeGraph()
 {
     NavGridUpdater.InitializeNavGrid(NavTable, ValidNavTypes, Validators, boundingOffsets, maxLinksPerCell, Links, transitionsByNavType);
 }