tanks

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

namespace tank
{
    public partial class Form1 : Form
    {
        int x = 100, y = 100;
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Paint(object sender, PaintEventArgs e)
        {
            e.Graphics.FillRectangle((Brushes.Red), x, y, 100, 100);
        }

        private void Form1_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyData == Keys.Right)
            {
                x += 10;
                if (x >= 650 - 100)
                {
                    x = 650 - 100;
                }
            }
            if (e.KeyData == Keys.Left)
            {
                x -= 10;
                if (x <= 0)
                {
                    x = 0;
                }
            }
            if (e.KeyData == Keys.Up)
            {
                y -= 10;
                if (y <= 0)
                {
                    y = 0;
                }
            }
            if (e.KeyData == Keys.Down)
            {
                y += 10;
                if (y>= 317 - 115)
                {
                    y = 317 - 115;
                }
            }
        }

    }
}