cool ball demo i wrote on c#

using System;
using System.Threading;

class Program
{
    static void Main()
    {
        Console.CursorVisible = false;

        int consoleWidth = Console.WindowWidth;
        int consoleHeight = Console.WindowHeight;

        int ballX = consoleWidth / 2;
        int ballY = consoleHeight / 2;

        int speedX = 1;
        int speedY = 1;

        while (true)
        {
            Console.Clear();

            ballX += speedX;
            ballY += speedY;

            if (ballX <= 0 || ballX >= consoleWidth - 1)
            {
                speedX = -speedX;
            }

            if (ballY <= 0 || ballY >= consoleHeight - 1)
            {
                speedY = -speedY;
            }

            Console.SetCursorPosition(ballX, ballY);
            Console.Write("O");

            Console.SetCursorPosition(0, 0);
            Thread.Sleep(50);
        }
    }
}