returns the cost of the path from the initial state to this node as indicated by the parent pointers . concode_field_sep Node parent concode_elem_sep Action action concode_elem_sep double pathCost concode_elem_sep Object state concode_field_sep Node getParent concode_elem_sep Object getState concode_elem_sep List<Node> getPathFromRoot concode_elem_sep Action getAction concode_elem_sep String toString concode_elem_sep boolean isRootNode
double function ( ) { return pathCost ; }