public static AssetsBundleFile CreateBlankBundle(string engineVersion, int contentSize)
{
AssetsBundleHeader06 header = new AssetsBundleHeader06()
{
signature = "UnityFS",
fileVersion = 6,
minPlayerVersion = "5.x.x",
fileEngineVersion = engineVersion,
totalFileSize = (ulong)(0x82 + engineVersion.Length + contentSize),
compressedSize = 0x5B,
decompressedSize = 0x5B,
flags = 0x40
};
AssetsBundleBlockInfo06 blockInf = new AssetsBundleBlockInfo06
{
decompressedSize = (uint)contentSize,
compressedSize = (uint)contentSize,
flags = 0x0040
};
AssetsBundleDirectoryInfo06 dirInf = new AssetsBundleDirectoryInfo06
{
offset = 0,
decompressedSize = (uint)contentSize,
flags = 4,
name = GenerateCabName()
};
AssetsBundleBlockAndDirectoryList06 info = new AssetsBundleBlockAndDirectoryList06()
{
checksumLow = 0,
checksumHigh = 0,
blockCount = 1,
blockInf = new AssetsBundleBlockInfo06[]
{
blockInf
},
directoryCount = 1,
dirInf = new AssetsBundleDirectoryInfo06[]
{
dirInf
}
};
AssetsBundleFile bundle = new AssetsBundleFile()
{
bundleHeader6 = header,
bundleInf6 = info
};
return(bundle);
}
private static byte[] GetBundleData(string bunPath, int index)
{
AssetsFileReader r = new AssetsFileReader(File.Open(bunPath, FileMode.Open, FileAccess.Read, FileShare.Read));
AssetsBundleFile bun = new AssetsBundleFile();
bun.Read(r, true);
//if the bundle doesn't have this section return empty
if (index >= bun.bundleInf6.dirInf.Length)
{
return(new byte[0]);
}
AssetsBundleDirectoryInfo06 dirInf = bun.bundleInf6.dirInf[index];
int start = (int)(bun.bundleHeader6.GetFileDataOffset() + dirInf.offset);
int length = (int)dirInf.decompressedSize;
byte[] data;
r.BaseStream.Position = start;
data = r.ReadBytes(length);
return(data);
}
public static AssetsBundleFile CreateBlankBundle(string engineVersion, int contentSize, int contentSizeSA, string sceneName)
{
uint infSize = (uint)(0x7B + sceneName.Length * 2);
AssetsBundleHeader06 header = new AssetsBundleHeader06()
{
signature = "UnityFS",
fileVersion = 6,
minPlayerVersion = "5.x.x",
fileEngineVersion = engineVersion,
totalFileSize = (ulong)(0x82 + engineVersion.Length + contentSize + contentSizeSA),
compressedSize = infSize, //0x5B,
decompressedSize = infSize, //0x5B,
flags = 0x40
};
AssetsBundleBlockInfo06 blockInfSharedAssets = new AssetsBundleBlockInfo06
{
decompressedSize = (uint)contentSizeSA,
compressedSize = (uint)contentSizeSA,
flags = 0x0040
};
AssetsBundleDirectoryInfo06 dirInfSharedAssets = new AssetsBundleDirectoryInfo06
{
offset = 0,
decompressedSize = (uint)contentSizeSA,
flags = 4,
name = "BuildPlayer-" + sceneName + ".sharedAssets"
};
AssetsBundleBlockInfo06 blockInf = new AssetsBundleBlockInfo06
{
decompressedSize = (uint)contentSize,
compressedSize = (uint)contentSize,
flags = 0x0040
};
AssetsBundleDirectoryInfo06 dirInf = new AssetsBundleDirectoryInfo06
{
offset = (ulong)contentSizeSA,
decompressedSize = (uint)contentSize,
flags = 4,
name = "BuildPlayer-" + sceneName
};
AssetsBundleBlockAndDirectoryList06 info = new AssetsBundleBlockAndDirectoryList06()
{
checksumLow = 0,
checksumHigh = 0,
blockCount = 2,
blockInf = new AssetsBundleBlockInfo06[]
{
blockInfSharedAssets,
blockInf
},
directoryCount = 2,
dirInf = new AssetsBundleDirectoryInfo06[]
{
dirInfSharedAssets,
dirInf
}
};
AssetsBundleFile bundle = new AssetsBundleFile()
{
bundleHeader6 = header,
bundleInf6 = info
};
return(bundle);
}
