Matrix effect in cmd by M7tr1x

using System;

    namespace m7tr1x
    {
        class Program
        {
            static void Main(string[] args)
            {
                Console.Title = "Learning";
                Console.ForegroundColor = ConsoleColor.DarkGreen;
                Console.WindowLeft = Console.WindowTop = 0;
                Console.WindowHeight = Console.BufferHeight = Console.LargestWindowHeight;
                Console.WindowWidth = Console.BufferWidth = Console.LargestWindowWidth;
#if readkey
                Console.WriteLine("H1T 7NY K3Y T0 C0NT1NU3 =/");
                Console.ReadKey();
#endif
                Console.CursorVisible = false;
                int width, height;
                int[] y;
                int[] l;
                Initialize(out width, out height, out y, out l);
                int ms;
                while (true)
                {
                    DateTime t1 = DateTime.Now;
                    MatrixStep(width, height, y, l);
                    ms = 10 - (int)((TimeSpan)(DateTime.Now - t1)).TotalMilliseconds;
                    if (ms > 0)
                        System.Threading.Thread.Sleep(ms);
                    if (Console.KeyAvailable)
                        if (Console.ReadKey().Key == ConsoleKey.F5)
                            Initialize(out width, out height, out y, out l);
                }
            }

            static bool thistime = false;

            private static void MatrixStep(int width, int height, int[] y, int[] l)
            {
                int x;
                thistime = !thistime;
                for (x = 0; x < width; ++x)
                {
                    if (x % 11 == 10)
                    {
                        if (!thistime)
                            continue;
                        Console.ForegroundColor = ConsoleColor.White;
                    }
                    else
                    {
                        Console.ForegroundColor = ConsoleColor.DarkGreen;
                        Console.SetCursorPosition(x, inBoxY(y[x] - 2 - (l[x] / 40 * 2), height));
                        Console.Write(R);
                        Console.ForegroundColor = ConsoleColor.Green;
                    }
                    Console.SetCursorPosition(x, y[x]);
                    Console.Write(R);
                    y[x] = inBoxY(y[x] + 1, height);
                    Console.SetCursorPosition(x, inBoxY(y[x] - l[x], height));
                    Console.Write(' ');
                }
            }

            private static void Initialize(out int width, out int height, out int[] y, out int[] l)
            {
                int h1;
                int h2 = (h1 = (height = Console.WindowHeight) / 2) / 2;
                width = Console.WindowWidth - 1;
                y = new int[width];
                l = new int[width];
                int x;
                Console.Clear();
                for (x = 0; x < width; ++x)
                {
                    y[x] = r.Next(height);
                    l[x] = r.Next(h2 * ((x % 11 != 10) ? 2 : 1), h1 * ((x % 11 != 10) ? 2 : 1));
                }
            }

            static Random r = new Random();
            static char R
            {
                get
                {
                    int t = r.Next(10);
                    if (t <= 2)
                        return (char)('0' + r.Next(10));
                    else if (t <= 4)
                        return (char)('a' + r.Next(27));
                    else if (t <= 6)
                        return (char)('A' + r.Next(27));
                    else
                        return (char)(r.Next(32, 255));
                }
            }

            public static int inBoxY(int n, int height)
            {
                n = n % height;
                if (n < 0)
                    return n + height;
                else
                    return n;
            }
        }
    }