Xin chào các bạn, bài viết hôm nay mình tiếp tục chia sẻ đến các bạn source code Matrix Rain trên Console lập trình C#.

[C#] Effect matrix rain console

Bài viết source code được mình lấy từ tác giả: theilgazcode trên github nhé các bạn.

Dưới đây là giao diện demo ứng dụng Matrix Rain C#:

Video demo:

Full source code C#:

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

namespace MatrixRain
{
    class Program
    {
            // fields
            static Random rand = new Random();

            // properties
            static char AsciiCharacter
        {
                get
            {
                    int t = rand.Next(10);
                    if (t <= 2)
                        // returns a number
                        return (char)('0' + rand.Next(10));
                    else if (t <= 4)
                        // small letter
                        return (char)('a' + rand.Next(27));
                    else if (t <= 6)
                        // capital letter
                        return (char)('A' + rand.Next(27));
                    else
                        // any ascii character
                        return (char)(rand.Next(32, 255));
                }
            }

            // methods
            static void Main()
        {
                Console.ForegroundColor = ConsoleColor.DarkGreen;
                Console.WindowLeft = Console.WindowTop = 0;
                Console.WindowHeight = Console.BufferHeight = Console.LargestWindowHeight;
                //Console.WindowWidth = Console.BufferWidth = Console.LargestWindowWidth;
                //Console.WriteLine("1LG4ZD0TC0M");
                //Console.WriteLine("H1T 4NY K3Y T0 C0NT1NU3");
                //Console.ReadKey();
                Console.CursorVisible = false;

                int width, height;
                // setup array of starting y values
                int[] y;

                // width was 209, height was 81
                // setup the screen and initial conditions of y
                Initialize(out width, out height, out y);

                // do the Matrix effect
                // every loop all y's get incremented by 1
                while (true)
                    UpdateAllColumns(width, height, y);
            }



        private static void UpdateAllColumns(int width, int height, int[] y)
        {
            int x;
            // draws 3 characters in each x column each time... 
            // a dark green, light green, and a space

            // y is the position on the screen
            // y[x] increments 1 each time so each loop does the same thing but down 1 y value
            for (x = 0; x < width; ++x)
            {
                // the bright green character
                Console.ForegroundColor = ConsoleColor.Green;
                Console.SetCursorPosition(x, y[x]);
                Console.Write(AsciiCharacter);

                // the dark green character -  2 positions above the bright green character
                Console.ForegroundColor = ConsoleColor.DarkGreen;
                int temp = y[x] - 2;
                Console.SetCursorPosition(x, inScreenYPosition(temp, height));
                Console.Write(AsciiCharacter);

                // the 'space' - 20 positions above the bright green character
                int temp1 = y[x] - 20;
                Console.SetCursorPosition(x, inScreenYPosition(temp1, height));
                Console.Write(' ');

                // increment y
                y[x] = inScreenYPosition(y[x] + 1, height);
            }

            // F5 to reset, F11 to pause and unpause
            if (Console.KeyAvailable)
            {
                if (Console.ReadKey().Key == ConsoleKey.F5)
                    Initialize(out width, out height, out y);
                if (Console.ReadKey().Key == ConsoleKey.F11)
                    System.Threading.Thread.Sleep(1);
            }

        }

        // Deals with what happens when y position is off screen
        public static int inScreenYPosition(int yPosition, int height)
        {
            if (yPosition < 0)
                return yPosition + height;
            else if (yPosition < height)
                return yPosition;
            else
                return 0;
        }

        // only called once at the start
        private static void Initialize(out int width, out int height, out int[] y)
        {
            height = Console.WindowHeight;
            width = Console.WindowWidth - 1;

            // 209 for me.. starting y positions of bright green characters
            y = new int[width];

            Console.Clear();
            // loops 209 times for me
            for (int x = 0; x < width; ++x)
            {
                // gets random number between 0 and 81
                y[x] = rand.Next(height);
            }
        }
    }
}

Thanks for watching!

DOWNLOAD SOURCE