boolean function ( ) { return ( traversalMask & WEST_TRAVERSAL_PERMITTED ) > 0 ; }
checks if western traversal is permitted . concode_field_sep int EAST_TRAVERSAL_PERMITTED concode_elem_sep int WEST_TRAVERSAL_PERMITTED concode_elem_sep int traversalMask concode_elem_sep int SOUTH_TRAVERSAL_PERMITTED concode_elem_sep int NORTH_TRAVERSAL_PERMITTED concode_field_sep boolean isNorthernTraversalPermitted concode_elem_sep boolean isEasternTraversalPermitted concode_elem_sep boolean isSouthernTraversalPermitted concode_elem_sep int getTraversalMask