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

namespace MatrixRevolution
{
    class Program
    {
        private static readonly int MatrixWidth = Console.LargestWindowWidth;
        private static readonly int MatrixHeight = Console.LargestWindowHeight;

        private static char[,] matrix;
        private static Random rand = new Random();

        static void Main(string[] args)
        {
            Console.WindowHeight = Console.BufferHeight = MatrixHeight;
            Console.WindowWidth = Console.BufferWidth = MatrixWidth;
            Console.ForegroundColor = ConsoleColor.DarkGreen;
            Console.WindowLeft = Console.WindowTop = 0;

            int[] y = new int[MatrixWidth];
            int[] length = new int[MatrixWidth];

            for (int x = 0; x < MatrixWidth; x++)
            {
                y[x] = rand.Next(1, MatrixHeight);
                length[x] = rand.Next(1, MatrixHeight - y[x]);
            }

            for (int x= 0; x < MatrixWidth; x++)
                for (int i = 0; i < length[x]; i++)
                {
                    Console.CursorVisible = false;
                    Console.SetCursorPosition(x, y[x] + i);
                    Console.Write((char)rand.Next(32, 125));
                }

            int l = 0;
            while(true)
            {
                for (int x = 0; x < MatrixWidth-1; x++)
                {
                    y[x] = y[x] < MatrixHeight ? y[x] : 0;
                    Console.SetCursorPosition(x, y[x]++);
                    Console.Write(' ');

                    int newY = y[x] + length[x] < MatrixHeight ? y[x] + length[x] : (y[x] + length[x]) - MatrixHeight;
                    Console.SetCursorPosition(x, newY++);
                    Console.Write((char)rand.Next(32, 125));

                    x = l % 2 == 0 ? x : x + 1;
                    x = l++ % 3 == 0 ? x : x + 2;
                }
                System.Threading.Thread.Sleep(40);
            }
            Console.ReadLine();
        }
    }
}