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using System;

using System.Drawing;

using System.Windows.Forms;

 

namespace ShipOnWater

{

    public partial class Form1 : Form

    {

        // The ship image

        private Image ship = Image.FromFile("ship.png");

        // The water image

        private Image water = Image.FromFile("water.png");

        // The ship position

        private Point shipPos = new Point(200, 200);

        // The ship speed

        private int shipSpeed = 10;

        // The water offset

        private int waterOffset = 0;

        // The water speed

        private int waterSpeed = 2;

 

        public Form1()

        {

            InitializeComponent();

            // Set the form size to match the water image size

            this.ClientSize = new Size(water.Width, water.Height);

            // Set the timer interval to 20 milliseconds

            timer1.Interval = 20;

            // Start the timer

            timer1.Start();

        }

 

        private void timer1_Tick(object sender, EventArgs e)

        {

            // Update the water offset

            waterOffset += waterSpeed;

            // Wrap the water offset around the water image height

            waterOffset %= water.Height;

            // Invalidate the form to trigger the paint event

            this.Invalidate();

        }

 

        private void Form1_Paint(object sender, PaintEventArgs e)

        {

            // Get the graphics object

            Graphics g = e.Graphics;

            // Draw the water image twice to create a scrolling effect

            g.DrawImage(water, 0, waterOffset - water.Height);

            g.DrawImage(water, 0, waterOffset);

            // Draw the ship image at the ship position

            g.DrawImage(ship, shipPos);

        }

 

        private void Form1_KeyDown(object sender, KeyEventArgs e)

        {

            // Move the ship according to the pressed key

            switch (e.KeyCode)

            {

                case Keys.Up:

                    // Move the ship up

                    shipPos.Y -= shipSpeed;

                    break;

                case Keys.Down:

                    // Move the ship down

                    shipPos.Y += shipSpeed;

                    break;

                case Keys.Left:

                    // Move the ship left

                    shipPos.X -= shipSpeed;

                    break;

                case Keys.Right:

                    // Move the ship right

                    shipPos.X += shipSpeed;

                    break;

            }

            // Clamp the ship position to the form boundaries

            shipPos.X = Math.Max(0, Math.Min(shipPos.X, this.ClientSize.Width - ship.Width));

            shipPos.Y = Math.Max(0,

Math.Min(shipPos.Y, this.ClientSize.Height - ship.Height));

        }

    }

}