Persistant Objects

function saveLevel( %callback )
{
   // Make sure we're on selection tool (deactivate active tool so it cleans up)
   LevelBuilderToolManager::setTool( LevelEditorSelectionTool );
   
   if ($currentLevelFile $= "")
   {
      saveLevelAs( %callback );
      return;
   }
   
   // Open the Current SceneGraph, if any.
   %lastWindow = ToolManager.getLastWindow();
   if( !isObject( %lastWindow ) || !isObject( %lastWindow.getScenegraph() ) )
   {
      error("SaveGraphGroup - No Valid SceneGraph Found!");
      return;
   }
   %sceneGraph = %lastWindow.getScenegraph();

   [b]%count = $persistentObjectSet.getCount();
   for (%i = 0; %i < %count; %i++)
      %scenegraph.removeFromScene($persistentObjectSet.getObject(%i));[/b]

   %fo = new FileObject();
   %fo.openForWrite($currentLevelFile);
   %fo.writeObject(%scenegraph, "%levelContent = ");
   %fo.close();
   %fo.delete();
   
   [b]for (%i = 0; %i < %count; %i++)
      %scenegraph.addToScene($persistentObjectSet.getObject(%i));[/b]
      
   $levelEditor::LastLevel[$currentProject] = $currentLevelFile;
   
   // Clear Dirty Flags and Undo's
   LevelBuilderUndoManager.clearAll();
   
   // Level was saved.
   if( %callback !$= "" )
      eval( %callback @ "();" );
}