Parsing a TexturePacker JSON file

Question

When I use texture packer to publish a texture atlas of for "Unity3d", it creates a txt file with the following JSON format:

 {
     "frames": {
         "frame-abc.png":
         {
             "frame": {"x":41,"y":2,"w":256,"h":256},
             "rotated": false,
             "trimmed": false,
             "spriteSourceSize": {"x":0,"y":0,"w":256,"h":256},
             "sourceSize": {"w":256,"h":256}
         },
         "someframe":
         {
             "frame": {"x":2,"y":2,"w":37,"h":382},
             "rotated": false,
             "trimmed": false,
             "spriteSourceSize": {"x":0,"y":0,"w":37,"h":382},
             "sourceSize": {"w":37,"h":382}
         }
     }
 }

My question is, how can I parse this to create a simple class so I can easily access the uv coordinates for each frame:

 public class FrameAtlas{
     Frame[] frames;
 }


 public class Frame {
     private string name;
     private Rect rect;
 }

Answer 1

Best Answer

Answer by TonyLi · Jun 01, 2013 at 12:56 AM

Use LitJSON: http://lbv.github.io/litjson/

Or use JSONObject: http://wiki.unity3d.com/index.php/JSONObject

Or, since you're providing the JSON, there aren't any security issues with just using eval(), but it's much slower than LitJSON.

Or, if you can get Texture Packer to export to XML instead, you can use XmlSerializer to load it.

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Answer 2

Answer by Andreas Loew · Jan 08, 2015 at 11:21 AM

If you really need access to the UV coordinates one of the JSON readers is the best solution. See above.

However if you intend to create sprites from the data the way easier solution is to use Unity's Texture2D / Sprite classes with a sprite sheet. This already handles the complete drawing and also allows you to directly use your sprites in the editor.

There's a unity plugin that can directly parse sprite sheet data.

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Josh Naylor ♦♦ · Jan 08, 2015 at 11:22 AM 0

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Fair enough posting on newer questions with this solution but this is becoming spam/advertising on older questions. Please stop

Josh Naylor ♦♦ · Jan 08, 2015 at 11:23 AM 0

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Also, the link doesn't work anyway

Parsing a TexturePacker JSON file

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