using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{

    public partial class Form1 : Form
    {
        public static int X_WIDTH = 1000;
        public static int Y_WIDTH = 1000;
        public static int RADIUS_SIZE = 50;

        public void RENDER(int personX, int personY)
        {
            Node[] nodes = new Node[]
            {
                new Node(1,100,100,Color.Red),
                new Node(2,150,100,Color.Blue),
                new Node(3,125,150,Color.Green)

            };
            Bitmap bmp = new Bitmap(X_WIDTH, Y_WIDTH);




            for (int x = 0; x < X_WIDTH; x++)
            {
                for (int y = 0; y < Y_WIDTH; y++)
                {

                    foreach (Node n in nodes)
                    {
                        double deltaR = n.GetDistance(x,y);
                        if (deltaR < RADIUS_SIZE && (deltaR > RADIUS_SIZE - 1))
                        {
                            bmp.SetPixel(x, y, ControlPaint.LightLight( n.Color));
                        }
                    }
                }
            }


            foreach (Node n in nodes)
            {


                bmp.SetPixel(n.Pos.X, n.Pos.Y, n.Color);

            }
            bmp.SetPixel(personX, personY, Color.Black);

            IEnumerable<Beacon> beacons = nodes.Select(n => new Beacon(n.Id, n.GetDistance(personX, personY))).Where(b => b.Distance <= 50);


            for (int x = 0; x < X_WIDTH; x++)
            {
                for (int y = 0; y < Y_WIDTH; y++)
                {

                    foreach (Beacon b in beacons)
                    {
                        Node n =  nodes.SingleOrDefault(no => no.Id == b.Id);
                        double deltaR = n.GetDistance(x, y);
                        if (deltaR < b.Distance && (deltaR > b.Distance - 1))
                        {
                            bmp.SetPixel(x, y, ControlPaint.Dark(n.Color));
                        }
                    }
                }
            }

            pictureBox1.Image = bmp;

            Position calcPos = GetPos(beacons, b => nodes.SingleOrDefault(n => b.Id == n.Id));

            MessageBox.Show(String.Format("Actual: {0},{1}\nCalc: {2},{3}", personX, personY, calcPos.X, calcPos.Y));

        }
        public Position GetPos(IEnumerable<Beacon> beacons, Func<Beacon,Node> getNode)
        {
            Position pos = new Position(0,0);

            return pos;
        }
        public Form1()
        {
            InitializeComponent();
            pictureBox1.MouseClick += new MouseEventHandler(pictureBox1_MouseClick);
        }

        void pictureBox1_MouseClick(object sender, MouseEventArgs e)
        {
            RENDER(e.X, e.Y);

        }

    }
    public class Node
    {
        public Position Pos;
        public Color Color;
        public int Id;
        public Node(int id, int x, int y, Color color)
        {
            Id = id;
            Pos = new Position(x, y);
            Color = color;
        }

        public double GetDistance(int x, int y)
        {
            int deltaX = Math.Abs(x - this.Pos.X);
            int deltaY = Math.Abs(y - this.Pos.Y);

            double deltaR = Math.Sqrt(deltaX * deltaX + deltaY * deltaY);


            return deltaR;
        }

    }
    public class Beacon
    {
        public int Id;
        public double Distance;
        public Beacon(int id, double distance)
        {
            Id = id;
            Distance = distance;
        }
    }
    public class Position
    {
        public int X;
        public int Y;
        public Position(int x, int y)
        {
            X = x;
            Y = y;
        }
    }
}