public static void ClassInitialize(TestContext context)
{
var file = @".\Data\bundle_5.3_fs.unity3d";
var abr = new AssestFile(file);
_info = abr.InfoTable;
}
private void Read(string file)
{
Logger.Log("Reading " + file);
try
{
using (BinaryBlock b = new BinaryBlock(File.Open(file, FileMode.Open)))
{
// Use BigEndian for bundle header
b.BigEndian = true;
// Load the Header info
Header = new AssetBundleHeader(b);
if (Header.BundleEntries.Count <= 0)
{
throw new AssetException("No bundle entries found in " + FilePath);
}
// For art extractor, just grab the first one
BundleEntry = Header.BundleEntries.FirstOrDefault();
// Move to bundle file offset
b.Seek(Header.HeaderSize + BundleEntry.Offset);
AssetHeader = new AssetHeader(BundleEntry.Data);
Logger.Log(LogLevel.DEBUG, AssetHeader);
// TODO: should have a UnityVersion object
var version = AssetHeader.AssetVersion;
// Should be LittleEndian for assets
BundleEntry.Data.BigEndian = AssetHeader.Endianness == 1 ? true : false;
Debug.Assert(BundleEntry.Data.BigEndian == false);
// For older unity versions specify header size
if (version < 9)
{
BundleEntry.Data.Seek(AssetHeader.FileSize - AssetHeader.MetadataSize + 1);
}
// Read the bundle metadata, classes and attributes
// NOTE: not actually using directly, keeping to keep binary position correct
TypeTree = new TypeTree(version);
TypeTree.Read(BundleEntry.Data);
// Read the asset objects info and offsets
InfoTable = new ObjectInfoTable(version);
InfoTable.Read(BundleEntry.Data);
// NOTE: FileIdentifierTable stuff would go here, but not using it for now
// Assign some properties
DataOffset = AssetHeader.DataOffset; // + Header.DataHeaderSize + Header.HeaderSize;
ObjectMap = InfoTable.InfoMap;
// Gather the asset objects plus data together
Objects = LoadObjects(BundleEntry.Data);
}
}
catch (Exception e)
{
throw e;
}
}
