private void Initialize(EndianBinaryReader reader, string fileName)
{
var tableSize = reader.ReadInt32();
var dataEnd = reader.ReadInt32();
var fileFormatVersion = reader.ReadInt32();
var dataOffset = reader.ReadUInt32();
FileFormatVersion = fileFormatVersion;
FullFileName = Path.GetFullPath(fileName);
var baseDefinitions = false;
var platform = 0;
switch (fileFormatVersion)
{
case 6:
reader.Position = dataEnd - tableSize;
reader.Position += 1;
break;
case 7:
reader.Position = dataEnd - tableSize;
reader.Position += 1;
Version = reader.ReadStringToNull();
break;
case 8:
reader.Position = dataEnd - tableSize;
reader.Position += 1;
Version = reader.ReadStringToNull();
platform = reader.ReadInt32();
break;
case 9:
reader.Position += 4;
Version = reader.ReadStringToNull();
platform = reader.ReadInt32();
break;
case 14:
case 15:
case 16:
case 17:
reader.Position += 4;
Version = reader.ReadStringToNull();
platform = reader.ReadInt32();
baseDefinitions = reader.ReadBoolean();
break;
default:
throw new FormatException();
}
if (platform > 255 || platform < 0)
{
platform = EndianHelper.SwapEndian(platform);
reader.Endian = Endian.LittleEndian;
}
Platform = (AssetPlatform)platform;
ReadClasses(reader, fileFormatVersion, baseDefinitions);
if (7 <= fileFormatVersion && fileFormatVersion < 14)
{
reader.Position += 4;
}
ReadAssetsPreloadTable(reader, fileFormatVersion, dataOffset);
// May be buggy...
// The original author assumes these two properties are not used in Unity 2.5.x (in BuildSettings class).
VersionComponents = VersionSplitter
.Split(Version)
.Select(str => Convert.ToInt32(str))
.ToArray();
BuildType = BuildTypePattern.Match(Version).Groups["build"].Value;
// 2017.x version handling is solved by better pattern splitting, so we skipped here.
if (fileFormatVersion >= 14)
{
var someCount = reader.ReadInt32();
for (var i = 0; i < someCount; ++i)
{
var dummy1 = reader.ReadInt32();
reader.AlignBy(4);
var pathID = reader.ReadInt64();
}
}
var sharedFileCount = reader.ReadInt32();
var sharedFileList = new SharedAssetInfo[sharedFileCount];
for (var i = 0; i < sharedFileCount; ++i)
{
var shared = new SharedAssetInfo();
shared.SomeName = reader.ReadStringToNull();
reader.Position += 20;
var sharedFileName = reader.ReadStringToNull();
shared.FileName = sharedFileName;
sharedFileList[i] = shared;
}
SharedAssetList = sharedFileList;
}
