Last week I posted the source code to a small program I wrote in Java to merge images into a sprite. This week I present the same application but in C#, pretty much translated line by line 
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using System;
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using System.Drawing;
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using System.Drawing.Imaging;
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using System.IO;
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using System.Linq;
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namespace NSpriteGenerator
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{
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class Program
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{
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static void Main(string[] args)
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{
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if (args.Length != 2)
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{
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Console.WriteLine("Usage: NSpriteGenerator {path to images} {output file}");
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return;
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}
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var imagePath = args[0];
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var outputFile = args[1];
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var imageFolder = new DirectoryInfo(imagePath);
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// Read images
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var imageList = imageFolder.GetFiles("*.png")
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.Select(file => Image.FromFile(file.FullName));
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// Find max width and total height
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var maxWidth = 0;
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var totalHeight = 0;
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foreach(var image in imageList)
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{
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totalHeight += image.Height;
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if (image.Width > maxWidth)
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maxWidth = image.Width;
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}
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Console.WriteLine(string.Format("Number of images: {0}, total height: {1}px, width: {2}", imageList.Count(), totalHeight, maxWidth));
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// Create the actual sprite
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var currentY = 0;
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using (var bitmap = new Bitmap(maxWidth, totalHeight))
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{
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using (var canvas = Graphics.FromImage(bitmap))
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{
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foreach (var image in imageList)
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{
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canvas.DrawImage(image, 0, currentY);
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currentY += image.Height;
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}
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canvas.Save();
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}
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Console.WriteLine("Writing sprite: "+ outputFile);
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bitmap.Save(outputFile, ImageFormat.Png);
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}
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}
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}
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}
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Output from a run:
PS C:\dev\NSpriteGenerator> .\NSpriteGenerator.exe C:\temp\gfx c:\temp\sprite.png
Number of images: 10, total height: 640px, width: 34
Writing sprite: c:\temp\sprite.png