如何使用 C# 在 Windows 控制台应用程序中创建 ASCII 动画?

发布于 2024-08-30 21:49:30 字数 231 浏览 4 评论 0 原文

我希望它能够显示非闪烁的动画,就像这个很棒的 Linux 命令一样; sl

http://www.youtube.com/watch?v=9GyMZKWjcYU

我会很感激一个小&愚蠢的例子是……一只苍蝇。

谢谢!

I would like it to display non-flickery animation like this awesome Linux command; sl

http://www.youtube.com/watch?v=9GyMZKWjcYU

I would appreciate a small & stupid example of say ... a fly.

Thanks!

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评论(2

扛刀软妹 2024-09-06 21:49:30

只需使用 Console.SetCursorPosition 将光标移动到某个位置,然后 Console.Write 一个字符。在每一帧之前,您必须通过用空格覆盖前一帧来删除它。这是我刚刚构建的一个小例子:

class Program
{
    static void Main(string[] args)
    {
        char[] chars = new char[] { '.', '-', '+', '^', '°', '*' };
        for (int i = 0; ; i++)
        {
            if (i != 0)
            {
                // Delete the previous char by setting it to a space
                Console.SetCursorPosition(6 - (i-1) % 6 - 1, Console.CursorTop);
                Console.Write(" ");
            }

            // Write the new char
            Console.SetCursorPosition(6 - i % 6 - 1, Console.CursorTop);
            Console.Write(chars[i % 6]);

            System.Threading.Thread.Sleep(100);
        }
    }
}

例如,您可以拍摄一个动画 gif,从中提取所有单帧/图像(请参阅如何执行此操作 此处),应用 ASCII 转换(如何执行此操作,请参见 这里)并像上面的代码示例一样逐帧打印这些内容。

更新

只是为了好玩,我实现了我刚才描述的内容。只需尝试将 @"C:\some_animated_gif.gif" 替换为某些(不是很大的)动画 gif 的路径即可。例如,从此处获取 AJAX 加载程序 gif。

class Program
{
    static void Main(string[] args)
    {
        Image image = Image.FromFile(@"C:\some_animated_gif.gif");
        FrameDimension dimension = new FrameDimension(
                           image.FrameDimensionsList[0]);
        int frameCount = image.GetFrameCount(dimension);
        StringBuilder sb;

        // Remember cursor position
        int left = Console.WindowLeft, top = Console.WindowTop;

        char[] chars = { '#', '#', '@', '%', '=', '+', 
                         '*', ':', '-', '.', ' ' };
        for (int i = 0; ; i = (i + 1) % frameCount)
        {
            sb = new StringBuilder();
            image.SelectActiveFrame(dimension, i);

            for (int h = 0; h < image.Height; h++)
            {
                for (int w = 0; w < image.Width; w++)
                {
                    Color cl = ((Bitmap)image).GetPixel(w, h);
                    int gray = (cl.R + cl.G + cl.B) / 3;
                    int index = (gray * (chars.Length - 1)) / 255;

                    sb.Append(chars[index]);
                }
                sb.Append('\n');
            }

            Console.SetCursorPosition(left, top);
            Console.Write(sb.ToString());

            System.Threading.Thread.Sleep(100);
        }
    }
}

Just use Console.SetCursorPosition for moving the cursor to a certain position, then Console.Write a character. Before each frame you have to delete the previous one by overwriting it with spaces. Heres a little example I just built:

class Program
{
    static void Main(string[] args)
    {
        char[] chars = new char[] { '.', '-', '+', '^', '°', '*' };
        for (int i = 0; ; i++)
        {
            if (i != 0)
            {
                // Delete the previous char by setting it to a space
                Console.SetCursorPosition(6 - (i-1) % 6 - 1, Console.CursorTop);
                Console.Write(" ");
            }

            // Write the new char
            Console.SetCursorPosition(6 - i % 6 - 1, Console.CursorTop);
            Console.Write(chars[i % 6]);

            System.Threading.Thread.Sleep(100);
        }
    }
}

You could for instance take an animated gif, extract all single frames/images from it (see how to do that here), apply an ASCII transformation (how to do that is described here for example) and print these frame by frame like in the above code example.

Update

Just for fun, I implemented what I just described. Just try it out replacing @"C:\some_animated_gif.gif" with the path to some (not to large) animated gif. For example take an AJAX loader gif from here.

class Program
{
    static void Main(string[] args)
    {
        Image image = Image.FromFile(@"C:\some_animated_gif.gif");
        FrameDimension dimension = new FrameDimension(
                           image.FrameDimensionsList[0]);
        int frameCount = image.GetFrameCount(dimension);
        StringBuilder sb;

        // Remember cursor position
        int left = Console.WindowLeft, top = Console.WindowTop;

        char[] chars = { '#', '#', '@', '%', '=', '+', 
                         '*', ':', '-', '.', ' ' };
        for (int i = 0; ; i = (i + 1) % frameCount)
        {
            sb = new StringBuilder();
            image.SelectActiveFrame(dimension, i);

            for (int h = 0; h < image.Height; h++)
            {
                for (int w = 0; w < image.Width; w++)
                {
                    Color cl = ((Bitmap)image).GetPixel(w, h);
                    int gray = (cl.R + cl.G + cl.B) / 3;
                    int index = (gray * (chars.Length - 1)) / 255;

                    sb.Append(chars[index]);
                }
                sb.Append('\n');
            }

            Console.SetCursorPosition(left, top);
            Console.Write(sb.ToString());

            System.Threading.Thread.Sleep(100);
        }
    }
}
淡墨 2024-09-06 21:49:30

只是为了好玩:

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

class Program
{
    static void ConsoleDraw(IEnumerable<string> lines, int x, int y)
    {
        if (x > Console.WindowWidth) return;
        if (y > Console.WindowHeight) return;

        var trimLeft = x < 0 ? -x : 0;
        int index = y;

        x = x < 0 ? 0 : x;
        y = y < 0 ? 0 : y;

        var linesToPrint =
            from line in lines
            let currentIndex = index++
            where currentIndex > 0 && currentIndex < Console.WindowHeight
            select new {
                Text = new String(line.Skip(trimLeft).Take(Math.Min(Console.WindowWidth - x, line.Length - trimLeft)).ToArray()),
                X = x,
                Y = y++
            };

        Console.Clear();
        foreach (var line in linesToPrint)
        {
            Console.SetCursorPosition(line.X, line.Y);
            Console.Write(line.Text);
        }
    }

    static void Main(string[] args)
    {
        Console.CursorVisible = false;

        var arr = new[]
        {
            @"        ________________.  ___     .______  ",
            @"       /                | /   \    |   _  \",
            @"      |   (-----|  |----`/  ^  \   |  |_)  |",
            @"       \   \    |  |    /  /_\  \  |      /",
            @"  .-----)   |   |  |   /  _____  \ |  |\  \-------.",
            @"  |________/    |__|  /__/     \__\| _| `.________|",
            @"   ____    __    ____  ___     .______    ________.",
            @"   \   \  /  \  /   / /   \    |   _  \  /        |",
            @"    \   \/    \/   / /  ^  \   |  |_)  ||   (-----`",
            @"     \            / /  /_\  \  |      /  \   \",
            @"      \    /\    / /  _____  \ |  |\  \---)   |",
            @"       \__/  \__/ /__/     \__\|__| `._______/",
        };

        var maxLength = arr.Aggregate(0, (max, line) => Math.Max(max, line.Length));
        var x = Console.BufferWidth/2 - maxLength/2;
        for (int y = -arr.Length; y < Console.WindowHeight + arr.Length; y++)
        {
            ConsoleDraw(arr, x, y);
            Thread.Sleep(100);
        }
    }
}

Just for fun :

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

class Program
{
    static void ConsoleDraw(IEnumerable<string> lines, int x, int y)
    {
        if (x > Console.WindowWidth) return;
        if (y > Console.WindowHeight) return;

        var trimLeft = x < 0 ? -x : 0;
        int index = y;

        x = x < 0 ? 0 : x;
        y = y < 0 ? 0 : y;

        var linesToPrint =
            from line in lines
            let currentIndex = index++
            where currentIndex > 0 && currentIndex < Console.WindowHeight
            select new {
                Text = new String(line.Skip(trimLeft).Take(Math.Min(Console.WindowWidth - x, line.Length - trimLeft)).ToArray()),
                X = x,
                Y = y++
            };

        Console.Clear();
        foreach (var line in linesToPrint)
        {
            Console.SetCursorPosition(line.X, line.Y);
            Console.Write(line.Text);
        }
    }

    static void Main(string[] args)
    {
        Console.CursorVisible = false;

        var arr = new[]
        {
            @"        ________________.  ___     .______  ",
            @"       /                | /   \    |   _  \",
            @"      |   (-----|  |----`/  ^  \   |  |_)  |",
            @"       \   \    |  |    /  /_\  \  |      /",
            @"  .-----)   |   |  |   /  _____  \ |  |\  \-------.",
            @"  |________/    |__|  /__/     \__\| _| `.________|",
            @"   ____    __    ____  ___     .______    ________.",
            @"   \   \  /  \  /   / /   \    |   _  \  /        |",
            @"    \   \/    \/   / /  ^  \   |  |_)  ||   (-----`",
            @"     \            / /  /_\  \  |      /  \   \",
            @"      \    /\    / /  _____  \ |  |\  \---)   |",
            @"       \__/  \__/ /__/     \__\|__| `._______/",
        };

        var maxLength = arr.Aggregate(0, (max, line) => Math.Max(max, line.Length));
        var x = Console.BufferWidth/2 - maxLength/2;
        for (int y = -arr.Length; y < Console.WindowHeight + arr.Length; y++)
        {
            ConsoleDraw(arr, x, y);
            Thread.Sleep(100);
        }
    }
}
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