Super hello world c#

Elementos que vamos a necesitar;

Agregar una clase con nombre Walker.cs

Código del programa;

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 Hello_World

{

    public partial class MainForm : Form

    {

        int mx, my;

        //Drawing

        Brush fillbr = new SolidBrush(Color.FromArgb(200,Color.Violet));

        Brush fillbr1 = new SolidBrush(Color.FromArgb(200, Color.Red));

        Pen drawpen = new Pen(Color.Blue);

        Pen drawpen1 = new Pen(Color.FromArgb(200,Color.GreenYellow),3);

        //Walkers

        int wnum = 10;

        Walker[] walkers;

        public MainForm()

        {

            InitializeComponent();

            //Set Walkers

            walkers = new Walker[wnum];

            for (int i = 0; i < wnum; i++)

            {

                walkers[i] = new Walker(0, 0, 5);

            }

        }

        private void timer_Tick(object sender, EventArgs e)

        {

            walkers[0].MoveTo(mx, my);

            for (int i = 1; i < wnum; i++)

            {

                walkers[i].MoveTo(walkers[i - 1].X, walkers[i - 1].Y);

            }

            drawboard.Invalidate();

        }

        private void drawboard_MouseMove(object sender, MouseEventArgs e)

        {

            mx = e.X; my = e.Y;

        }

        private void drawboard_Paint(object sender, PaintEventArgs e)

        {

            e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;

            for (int i = wnum-1; i > 0; i--)

            {

                if (walkers[i].IsOn(mx,my))

                {

                    e.Graphics.FillEllipse(fillbr, walkers[i].X - 5, walkers[i].Y - 5, 10, 10);

                }

                else

                {

                    e.Graphics.FillEllipse(fillbr1, walkers[i].X - 5, walkers[i].Y - 5, 10, 10);

                }

            }

            e.Graphics.DrawEllipse(drawpen, mx - 4, my - 4, 8, 8);

            e.Graphics.DrawEllipse(drawpen1, mx - 2, my - 2, 4, 4);

        }

        private void drawboard_MouseEnter(object sender, EventArgs e)

        {

            Cursor.Hide();

        }

        private void drawboard_MouseLeave(object sender, EventArgs e)

        {

            Cursor.Show();

        }

        private void MainForm_Load(object sender, EventArgs e)

        {

        }

    }

}

En la clase Walker agregamos el siguiente código;

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace Hello_World

{

    public class Walker

    {

        #region Properties

        public float X { set; get; }

        public float Y { set; get; }

        public int Speed { set; get; }

        #endregion

        public Walker()

        {

           

        }

        public bool IsOn(int mx,int my)

        {

            if (Math.Sqrt(Math.Pow(mx - X, 2) + Math.Pow(my - Y, 2)) <= 5)

            {

                return true;

            }

            return false;

        }

        public Walker(int _x,int _y,int speed)

        {

            X = _x;

            Y = _y;

            Speed = speed;

        }

        public void MoveTo(float _x, float _y)

        {

            X += (_x - X) / Speed;

            Y += (_y - Y) / Speed;

        }

    }

}