AIsOfCatan.Board.GetPossibleSettlements C# (CSharp) 메소드

        public Intersection[] GetPossibleSettlements(int playerID)
        {
            return new HashSet<Intersection>(this.roads.Keys.Where(k => roads[k] == playerID)
                .SelectMany(e => this.GetAdjacentIntersections(e)))
                .Where(i => HasNoNeighbors(i)
                    && !this.settlements.ContainsKey(i)).ToArray();
        }