Code to Animate a Body (Circle) Across the Canvas Component in C#

using System;
using System.Drawing;
using System.Windows.Forms;

namespace Dymetric
{
    public partial class Form1 : Form
    {
        private Rectangle screen_rect;
        private Dymetric action_class;
        private bool CLICK_OCCURRED;

        public Form1()
        {
            InitializeComponent();
            screen_rect = Screen.PrimaryScreen.Bounds;
            CLICK_OCCURRED = false;
            action_class = new Dymetric(screen_rect.Width, screen_rect.Height);
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            // Set window position, width and height
            this.SetDesktopBounds(0, 0, screen_rect.Width, screen_rect.Height);

            // Set a display text
            this.Text = "useOfMaths.com";

            // Set a background colour
            this.BackColor = Color.LightGray;

            // Set an icon image
            String path = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().CodeBase);
            path = new Uri(path).LocalPath;
            try
            {
                this.Icon = new Icon(path + "\\useOfMaths.ico");
            }
            catch(System.IO.FileNotFoundException ex)
            {
                // Well, just go on and use default pic
            }

            /*
             * Create a button - response_btn
             */
            Button response_btn = new Button();
            response_btn.BackColor = Color.Magenta;
            response_btn.ForeColor = Color.Blue;
            response_btn.SetBounds(screen_rect.Width / 2 - 50, 5, 100, 40);
            response_btn.Text = "Move";
            response_btn.Click += new EventHandler(response_btn_Click);
            this.Controls.Add(response_btn);
        }

        private void Form1_Paint(object sender, PaintEventArgs e)
        {
            // Draw a dotted line
            Pen pencil = new Pen(Color.Black);
            pencil.DashStyle = System.Drawing.Drawing2D.DashStyle.DashDot;
            pencil.Width = 5;
            e.Graphics.DrawLine(pencil, 0, 50, this.Width, 50);
            pencil.Dispose();

            // Colour region
            Brush paint_brush = new SolidBrush(Color.Pink);
            e.Graphics.FillRectangle(paint_brush, 0, 0, this.Width, 50);
            paint_brush.Dispose();

            // Call in proper action
            action_class.decideAction(e, CLICK_OCCURRED);
            CLICK_OCCURRED = false; // Reset click variable
        }


        public void response_btn_Click(object sender, EventArgs e)
        {
            // turn this on on every button click
            CLICK_OCCURRED = true;
            this.Refresh();
        }

        private void Form1_Load_1(object sender, EventArgs e)
        {

        }
    }
}

using System.Windows.Forms;

namespace Dymetric
{
    class Dymetric
    {
        private MovingBody move_body;
        private bool do_simulation;

        public Dymetric(int width, int height)
        {
            move_body = new MovingBody(width, height);
            do_simulation = false;
        }

        // decide what course of action to take
        public void decideAction(PaintEventArgs e, bool click_check)
        {
            if (do_simulation && click_check)
            {
                // do animation
                move_body.inPlay(e);
                do_simulation = false;
            }
            else
            {
                // Put ball on screen
                move_body.clearAndDraw(e);
                do_simulation = true;
            }
        }
    }
}

using System.Threading;
using System.Drawing;
using System.Windows.Forms;

namespace Dymetric
{
    class MovingBody
    {
        private int x, y, previous_x, previous_y;
        private const int ballDIAMETER = 80;

        // we'll be drawing to and from a bitmap image
        private Bitmap offscreen_bitmap;
        Graphics offscreen_g;

        private Brush ball_colour, bg_colour;

        public MovingBody(int screen_width, int screen_height)
        {
            ball_colour = new SolidBrush(Color.Yellow);
            bg_colour = new SolidBrush(Color.LightGray);

            // Create bitmap image
            offscreen_bitmap = new Bitmap(screen_width, screen_height - 55,
                System.Drawing.Imaging.PixelFormat.Format24bppRgb);

            // point graphic object to bitmap image
            offscreen_g = Graphics.FromImage(offscreen_bitmap);

            // Set background of bitmap graphic
            offscreen_g.Clear(Color.LightGray);

            previous_x = x = 10;
            previous_y = y = offscreen_bitmap.Height / 2 - ballDIAMETER / 2;
        }

        // draw first appearance of ball on the screen
        public void clearAndDraw(PaintEventArgs e)
        {
            /*
             * draw to offscreen bitmap
             */
            // clear previous ball
            offscreen_g.FillEllipse(bg_colour, previous_x, previous_y, ballDIAMETER, ballDIAMETER);
            // draw ball
            offscreen_g.FillEllipse(ball_colour, x, y, ballDIAMETER, ballDIAMETER);
            previous_x = x;
            previous_y = y;

            // draw to screen
            Graphics gr = e.Graphics;
            gr.DrawImage(offscreen_bitmap, 0, 55, offscreen_bitmap.Width, offscreen_bitmap.Height);
        }

        // repetitively clear and draw ball on the screen - Simulate motion
        public void inPlay(PaintEventArgs e)
        {
            // condition for continuing motion
            while (x < offscreen_bitmap.Width - ballDIAMETER)
            {
                // redraw ball
                clearAndDraw(e);

                x += 10;
                // take a time pause
                Thread.Sleep(50);
            }
            x = 10;
            y = offscreen_bitmap.Height / 2 - ballDIAMETER / 2;
        }
    }
}