}
DimensionalCoord dc = startingNode.getGridBlock().getLocation();
ControllerValidator cv = new ControllerValidator( dc.x, dc.y, dc.z );
startingNode.beginVisit( cv );
if ( cv.isValid && cv.found == controllers.size() )
controllerState = ControllerState.CONTROLLER_ONLINE;
else
controllerState = ControllerState.CONTROLLER_CONFLICT;