public VPak(FArchive Ar)
{
Id = Ar.Read <ulong>();
Size = Ar.Read <uint>();
ChunkIndices = Ar.ReadArray <uint>(Ar.Read <int>());
Name = Encoding.ASCII.GetString(Ar.ReadBytes(Ar.ReadByte()));
}
public HierarchySettings(FArchive Ar) : base(Ar)
{
var count = Ar.ReadByte();
Types = Ar.ReadArray <EHierarchyParameterType>(count);
Values = Ar.ReadArray <float>(count);
}
protected virtual string ParsePlayer(FArchive archive)
{
// TODO player type enum
var botIndicator = archive.ReadByte();
if (botIndicator == 0x03)
{
return("Bot");
}
else if (botIndicator == 0x10)
{
return(archive.ReadFString());
}
// 0x11
var size = archive.ReadByte();
return(archive.ReadGUID(size));
}
public PlayerNameData(FArchive archive)
{
Handle = archive.ReadByte();
Unknown1 = archive.ReadByte();
IsPlayer = archive.ReadBoolean();
EncodedName = archive.ReadFString();
string decodedName = String.Empty;
if (IsPlayer)
{
for (int i = 0; i < EncodedName.Length; i++)
{
int shift = (EncodedName.Length % 4 * 3 % 8 + 1 + i) * 3 % 8;
decodedName += (char)(EncodedName[i] + shift);
}
DecodedName = decodedName;
}
else
{
DecodedName = EncodedName;
}
}
protected virtual PlayerElimination ParseElimination(FArchive archive, EventInfo info)
{
try
{
var elim = new PlayerElimination
{
Info = info,
};
if (archive.EngineNetworkVersion >= EngineNetworkVersionHistory.HISTORY_FAST_ARRAY_DELTA_STRUCT && Major >= 9)
{
archive.SkipBytes(85);
elim.Eliminated = ParsePlayer(archive);
elim.Eliminator = ParsePlayer(archive);
}
else
{
if (Major <= 4 && Minor < 2)
{
archive.SkipBytes(12);
}
else if (Major == 4 && Minor <= 2)
{
archive.SkipBytes(40);
}
else
{
archive.SkipBytes(45);
}
elim.Eliminated = archive.ReadFString();
elim.Eliminator = archive.ReadFString();
}
elim.GunType = archive.ReadByte();
elim.Knocked = archive.ReadUInt32AsBoolean();
elim.Time = info?.StartTime.MillisecondsToTimeStamp();
return(elim);
}
catch (Exception ex)
{
_logger?.LogError($"Error while parsing PlayerElimination at timestamp {info.StartTime}");
throw new PlayerEliminationException($"Error while parsing PlayerElimination at timestamp {info.StartTime}", ex);
}
}
protected virtual void ParsePlayer(FArchive archive, PlayerEliminationInfo info)
{
info.PlayerType = archive.ReadByteAsEnum <PlayerTypes>();
switch (info.PlayerType)
{
case PlayerTypes.Bot:
break;
case PlayerTypes.NamedBot:
info.Id = archive.ReadFString();
break;
case PlayerTypes.Player:
info.Id = archive.ReadGUID(archive.ReadByte());
break;
}
}
public VHeader(FArchive Ar)
{
Magic = Ar.Read <uint>();
if (Magic != _MAGIC)
{
throw new ParserException(Ar, "Invalid manifest magic");
}
HeaderSize = Ar.Read <uint>();
ManifestId = Ar.Read <ulong>();
UncompressedSize = Ar.Read <uint>();
CompressedSize = Ar.Read <uint>();
ChunkCount = Ar.Read <uint>();
PakCount = Ar.Read <uint>();
var gameVersionLength = Ar.ReadByte();
GameVersion = gameVersionLength == 0 ? null : Encoding.ASCII.GetString(Ar.ReadBytes(gameVersionLength));
Ar.Position = HeaderSize;
}
protected virtual PlayerElimination ParseElimination(FArchive archive, EventInfo info)
{
try
{
var elim = new PlayerElimination
{
Info = info,
};
if (archive.EngineNetworkVersion >= EngineNetworkVersionHistory.HISTORY_FAST_ARRAY_DELTA_STRUCT && Major >= 9)
{
archive.SkipBytes(9);
elim.EliminatedInfo = new PlayerEliminationInfo
{
Unknown1 = new FVector(archive.ReadSingle(), archive.ReadSingle(), archive.ReadSingle()),
Location = new FVector(archive.ReadSingle(), archive.ReadSingle(), archive.ReadSingle()),
Unknown2 = new FVector(archive.ReadSingle(), archive.ReadSingle(), archive.ReadSingle()),
};
archive.ReadSingle(); //?
elim.EliminatorInfo = new PlayerEliminationInfo
{
Unknown1 = new FVector(archive.ReadSingle(), archive.ReadSingle(), archive.ReadSingle()),
Location = new FVector(archive.ReadSingle(), archive.ReadSingle(), archive.ReadSingle()),
Unknown2 = new FVector(archive.ReadSingle(), archive.ReadSingle(), archive.ReadSingle()),
};
ParsePlayer(archive, elim.EliminatedInfo);
ParsePlayer(archive, elim.EliminatorInfo);
}
else
{
if (Major <= 4 && Minor < 2)
{
archive.SkipBytes(12);
}
else if (Major == 4 && Minor <= 2)
{
archive.SkipBytes(40);
}
else
{
archive.SkipBytes(45);
}
elim.EliminatedInfo = new PlayerEliminationInfo
{
Id = archive.ReadFString()
};
elim.EliminatorInfo = new PlayerEliminationInfo
{
Id = archive.ReadFString()
};
}
elim.GunType = archive.ReadByte();
elim.Knocked = archive.ReadUInt32AsBoolean();
elim.Timestamp = info.StartTime;
return(elim);
}
catch (Exception ex)
{
_logger?.LogError($"Error while parsing PlayerElimination at timestamp {info.StartTime}");
throw new PlayerEliminationException($"Error while parsing PlayerElimination at timestamp {info.StartTime}", ex);
}
}
public FPakEntry(PakFileReader reader, string path, FArchive Ar) : base(reader)
{
Path = path;
// FPakEntry is duplicated before each stored file, without a filename. So,
// remember the serialized size of this structure to avoid recomputation later.
var startOffset = Ar.Position;
Offset = Ar.Read <long>();
CompressedSize = Ar.Read <long>();
UncompressedSize = Ar.Read <long>();
Size = UncompressedSize;
if (reader.Info.Version < PakFile_Version_FNameBasedCompressionMethod)
{
var legacyCompressionMethod = Ar.Read <ECompressionFlags>();
int compressionMethodIndex;
if (legacyCompressionMethod == COMPRESS_None)
{
compressionMethodIndex = 0;
}
else if (legacyCompressionMethod == (ECompressionFlags)259) // SOD2
{
compressionMethodIndex = 4;
}
else if (legacyCompressionMethod.HasFlag(COMPRESS_ZLIB))
{
compressionMethodIndex = 1;
}
else if (legacyCompressionMethod.HasFlag(COMPRESS_GZIP))
{
compressionMethodIndex = 2;
}
else if (legacyCompressionMethod.HasFlag(COMPRESS_Custom))
{
if (reader.Game == GAME_SeaOfThieves)
{
compressionMethodIndex = 4; // LZ4
}
else
{
compressionMethodIndex = 3; // Oodle, used by Fortnite Mobile until early 2019
}
}
else
{
compressionMethodIndex = -1;
//throw new ParserException("Found an unknown compression type in pak file, will need to be supported for legacy files");
}
CompressionMethod = compressionMethodIndex == -1 ? CompressionMethod.Unknown : reader.Info.CompressionMethods[compressionMethodIndex];
}
else if (reader.Info.Version == PakFile_Version_FNameBasedCompressionMethod && !reader.Info.IsSubVersion)
{
CompressionMethod = reader.Info.CompressionMethods[Ar.Read <byte>()];
}
else
{
CompressionMethod = reader.Info.CompressionMethods[Ar.Read <int>()];
}
if (reader.Info.Version < PakFile_Version_NoTimestamps)
{
Ar.Position += 8; // Timestamp
}
Ar.Position += 20; // Hash
if (reader.Info.Version >= PakFile_Version_CompressionEncryption)
{
if (CompressionMethod != CompressionMethod.None)
{
CompressionBlocks = Ar.ReadArray <FPakCompressedBlock>();
}
Flags = (uint)Ar.ReadByte();
CompressionBlockSize = Ar.Read <uint>();
}
if (reader.Info.Version >= PakFile_Version_RelativeChunkOffsets)
{
// Convert relative compressed offsets to absolute
for (var i = 0; i < CompressionBlocks.Length; i++)
{
CompressionBlocks[i].CompressedStart += Offset;
CompressionBlocks[i].CompressedEnd += Offset;
}
}
StructSize = (int)(Ar.Position - startOffset);
}
