License:

Released under MIT license.

C version of disunity.

It's forbidden to sell Unity AssetStore plugins based on this source. Because I'll write a plugin to sell. :)

AssetBundleParser

AssetBundleParser is a tool to compare and merge Unity assetbundle.

AssetBundleParser isn't robust. If it's used to load a file of wrong format, it'll crash. There are two reasons:

1. The format of assetbundle is private. The code is kept simple, so that if it fails to parse a file of right format and crashes, it'll be ease to compare the source code with disunity to find locate the bug.
2. It's easy to verify if a file is of right format by using md5, it's unnecessary to add too much error-check and recovery code which only complicates the source.

At current only uncompressed assetbundle is supported. This is because Lzma compression speed is very slow. So when create a bundle, options like BuildOptions.UncompressedAssetBundle or BuildAssetBundleOptions.UncompressedAssetBundle shall be used.

Compatibility

Unity 				| Support
---  				| --- 		
4.6 				| √ 
5.0 				| ×		

Usage

1. Call assetbundle_diff to generate a diff file.
2. Call assetbundle_merge to merge diff file.

The diff file isn't compressed. Compress it before sending to network if needed.

Interface

assetbundle_load Description: Parse assetbundle file Param: assetbundle: File path Return: A pointer to assetbundle

assetbundle_check Description: Check if an assetbundle is supported. It's used only when comparing difference. It may use much memory. Return: true: The assetbundle is in good status.

assetbundle_diff Description: Generate diff file Return: 0: Success; None-zero: error code.

assetbundle_merge Description: Merge diff files. Return: 0: Success; None-zero: error code