C#EventDriven_Snake_1b

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Snake1b
{
    class Program
    {
        public enum Direction { Left, Right, Up, Down}
        static void Main(string[] args)
        {
            ConsoleKeyInfo cki;
            int positionX = 0;
            int positionY = 0;
            Direction direction = Direction.Right;

            Console.Title = "Use arrows to stear! Esc to exit the game.";
            do
            {
                // 1. The endles loop of the life
                while (!Console.KeyAvailable)
                {
                    switch (direction) {
                        case Direction.Right:
                            if (positionX < Console.WindowWidth - 1) positionX++;
                            break;
                        case Direction.Left:
                            if (positionX > 0) positionX--;
                            break;
                        case Direction.Up:
                            if (positionY > 0) positionY--;
                            break;
                        case Direction.Down:
                            if (positionY < Console.WindowHeight) positionY++;
                            break;
                    }
                    Console.Clear();
                    Console.SetCursorPosition(positionX, positionY);
                    Console.ForegroundColor = ConsoleColor.Gray;
                    // Console.BackgroundColor = ConsoleColor.Blue;
                    Console.Write("*");
                    // Console.WriteLine("Endless loop");

                    System.Threading.Thread.Sleep(50);
                }

                // 2. A meteor is passing by
                cki = Console.ReadKey(true);
                switch (cki.Key) {
                    case ConsoleKey.LeftArrow:
                        // if (positionX > 0) positionX--;
                        direction = Direction.Left;
                        break;
                    case ConsoleKey.RightArrow:
                        // if (positionX < Console.WindowWidth - 1) positionX++;
                        direction = Direction.Right;
                        break;
                    case ConsoleKey.UpArrow:
                        // if (positionY > 0) positionY--;
                        direction = Direction.Up;
                        break;
                    case ConsoleKey.DownArrow:
                        // if (positionY < Console.WindowHeight) positionY++;
                        direction = Direction.Down;
                        break;
                }

            } while (cki.Key != ConsoleKey.Escape);
        }
    }
}