public override bool IsGoalState(State state)
        {
            GraphState current = state as GraphState;

            if (current == null)
            {
                return(false);
            }

            foreach (Node node in this.p_Goals)
            {
                if (current.Self.Equals(node))
                {
                    return(true);
                }
            }

            return(false);
        }
        public override State[] GetSuccessors(State state)
        {
            GraphState current = state as GraphState;

            if (current == null)
            {
                return(null);
            }

            List <GraphState> successors = new List <GraphState>();

            foreach (Edge edge in current.Self.Edges)
            {
                successors.Add(new GraphState(edge.Node.Label, edge.Node, edge.Weight));
            }

            this.ExpandedStates.Add(current);

            return(successors.ToArray());
        }