Sprite Sheet Packer

網路上找到的用 C# 寫的 Open Source 的 Sprite Sheet 產生軟體 http://spritesheetpacker.codeplex.com/
蠻簡單好用的 不過因為我都是要倒給 Starling 的 TextureAltas 用的 所以稍微改一下他的原始碼
在 \sspack\Exporters\TxtMapExporter.cs 檔

public string MapExtension
{
 get { return "xml"; }
}

public void Save(string filename, Dictionary<string, Rectangle> map)
{
 // copy the files list and sort alphabetically
 string[] keys = new string[map.Count];
 map.Keys.CopyTo(keys, 0);
 List<string> outputFiles = new List<string>(keys);
 outputFiles.Sort();

 using (StreamWriter writer = new StreamWriter(filename))
 {
  writer.WriteLine("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
  writer.WriteLine("<TextureAtlas imagePath=\"" + Path.GetFileNameWithoutExtension(filename) + ".png\">");
  foreach (var image in outputFiles) {
   // get the destination rectangle
   Rectangle destination = map[image];

   // write out the destination rectangle for this bitmap
   writer.WriteLine(string.Format(
    "   <SubTexture name=\"{0}\" x=\"{1}\" y=\"{2}\" width=\"{3}\" height=\"{4}\" />", 
    Path.GetFileNameWithoutExtension(image), 
    destination.X, 
    destination.Y, 
    destination.Width, 
    destination.Height));
  }
  writer.WriteLine("</TextureAtlas>");
 }
}

有改的都標記出來了, 再重新編譯產出 sspack.exe 檔覆蓋掉原本的即可, 產出 XML 的看起來就會像是

<?xml version="1.0" encoding="UTF-8"?>
<TextureAtlas imagePath="AllTexture.png">
 <SubTexture name="apple" x="1284" y="221" width="299" height="35" />
 <SubTexture name="arrow" x="1584" y="221" width="20" height="11" />
 <SubTexture name="arrow_left" x="1140" y="975" width="23" height="29" />
 <SubTexture name="arrow_right" x="1939" y="197" width="23" height="29" />
</TextureAtlas>

這樣就可以直接把產出檔案 XML & PNG 餵給 Starling Framework 的 TextureAtlas 用囉~
如果沒錢買 TexturePacker 可以考慮試試看這個免費的軟體~