GraphLibrary/DrawGraph/Node.cs

namespace DrawGraph
{
    public class Node
    {
        public int X { get; set; }
        public int Y { get; set; }

        public Node(int x, int y)
        {
            X = x;
            Y = y;
        }

        public int CenterByX => (X * 2 + (Settings.NodeWidth/2)) / 2;

        public int CenterByY => (Y * 2 + (Settings.NodeHeight / 2)) / 2;

        public static bool Compare(Node v1, Node v2)
        {
            if (Equals(v1, v2))
                return true;
            if (v1 == v2)
                return true;
            if (v1.X == v2.X && v1.Y == v2.Y)
                return true;
            return false;
        }

        public static bool IsNodeOverlaid(Node v1, Node v2)
        {
            var x = v1.X - v2.X;
            var y = v1.Y - v2.Y;
            if(x<=Settings.NodeWidth/2 && x>=0)
                if (y <= Settings.NodeHeight / 2 && y > 0)
                    return true;
            x = v2.X - v1.X;
            y = v2.Y - v1.Y;
            if (x <= Settings.NodeWidth / 2 && x >= 0)
                if (y <= Settings.NodeHeight / 2 && y > 0)
                    return true;
            return false;
        }

    }
}