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public static CalculateCrc ( byte data, int startPosition, int length, |
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| data | byte | |
| startPosition | int | |
| length | int | |
| crc | ||
| Résultat | ||
public static bool ValidateCrc(string filePath, bool onlyPartOne)
{
using (var fs = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read))
{
if (fs.Length <= 8)
{
return(false);
}
var intBuffer = new byte[4];
if (fs.Read(intBuffer, 0, 4) != 4)
{
return(false);
}
var part1Length = BitConverter.ToInt32(intBuffer, 0);
if (fs.Read(intBuffer, 0, 4) != 4)
{
return(false);
}
var part1Crc = BitConverter.ToUInt32(intBuffer, 0);
var part1Bytes = new byte[part1Length];
if (fs.Read(part1Bytes, 0, part1Length) != part1Length)
{
return(false);
}
if (part1Crc != Crc32.CalculateCrc(part1Bytes, 0, part1Length, CRC_SEED))
{
return(false);
}
if (!onlyPartOne)
{
if (fs.Read(intBuffer, 0, 4) != 4)
{
return(false);
}
var part2Length = BitConverter.ToInt32(intBuffer, 0);
if (fs.Read(intBuffer, 0, 4) != 4)
{
return(false);
}
var part2Crc = BitConverter.ToUInt32(intBuffer, 0);
var part2Bytes = new byte[part2Length];
if (fs.Read(part2Bytes, 0, part2Length) != part2Length)
{
return(false);
}
if (part2Crc != Crc32.CalculateCrc(part2Bytes, 0, part2Length, CRC_SEED))
{
return(false);
}
}
return(true);
}
}
public void Serialize(Stream stream)
{
List <byte> part1Bytes = new List <byte>();
part1Bytes.AddRange(BitConverter.GetBytes(EngineVersion));
part1Bytes.AddRange(BitConverter.GetBytes(LicenseeVersion));
part1Bytes.AddRange(TAGame_Replay_Soccar_TA.Serialize());
part1Bytes.AddRange(Properties.Serialize());
var bytes = part1Bytes.ToArray();
stream.Write(BitConverter.GetBytes(part1Bytes.Count), 0, 4);
var crc = Crc32.CalculateCrc(bytes, 0, bytes.Length, CRC_SEED);
stream.Write(BitConverter.GetBytes(crc), 0, 4);
stream.Write(bytes, 0, part1Bytes.Count);
List <byte> part2Bytes = new List <byte>();
part2Bytes.AddRange(BitConverter.GetBytes(Levels.Count));
foreach (var level in Levels)
{
part2Bytes.AddRange(level.Serialize());
}
part2Bytes.AddRange(BitConverter.GetBytes(KeyFrames.Count));
foreach (var keyFrame in KeyFrames)
{
part2Bytes.AddRange(keyFrame.Serialize());
}
var bw = new BitWriter(8 * 1024 * 1024); // 1MB is a decent starting point
Dictionary <UInt32, ActorState> newActorsById = new Dictionary <uint, ActorState>();
var maxChannels = MaxChannels();
foreach (Frame f in Frames)
{
f.Serialize(maxChannels, ref newActorsById, EngineVersion, LicenseeVersion, bw);
}
var networkStreamBytes = bw.GetBytes();
part2Bytes.AddRange(BitConverter.GetBytes(networkStreamBytes.Length));
part2Bytes.AddRange(networkStreamBytes);
part2Bytes.AddRange(BitConverter.GetBytes(DebugStrings.Count));
foreach (var debugString in DebugStrings)
{
part2Bytes.AddRange(debugString.Serialize());
}
part2Bytes.AddRange(BitConverter.GetBytes(TickMarks.Count));
foreach (var tickMark in TickMarks)
{
part2Bytes.AddRange(tickMark.Serialize());
}
part2Bytes.AddRange(BitConverter.GetBytes(Packages.Count));
foreach (var packages in Packages)
{
part2Bytes.AddRange(packages.Serialize());
}
part2Bytes.AddRange(BitConverter.GetBytes(Objects.Length));
foreach (var obj in Objects)
{
part2Bytes.AddRange(obj.Serialize());
}
part2Bytes.AddRange(BitConverter.GetBytes(Names.Length));
foreach (var name in Names)
{
part2Bytes.AddRange(name.Serialize());
}
part2Bytes.AddRange(BitConverter.GetBytes(ClassIndexes.Count));
foreach (var classIndex in ClassIndexes)
{
part2Bytes.AddRange(classIndex.Serialize());
}
part2Bytes.AddRange(BitConverter.GetBytes(ClassNetCaches.Length));
foreach (var classNetCache in ClassNetCaches)
{
part2Bytes.AddRange(classNetCache.Serialize());
}
bytes = part2Bytes.ToArray();
stream.Write(BitConverter.GetBytes(part2Bytes.Count), 0, 4);
crc = Crc32.CalculateCrc(bytes, 0, bytes.Length, CRC_SEED);
stream.Write(BitConverter.GetBytes(crc), 0, 4);
stream.Write(bytes, 0, part2Bytes.Count);
}
public void Serialize(Stream stream)
{
List<byte> part1Bytes = new List<byte>();
part1Bytes.AddRange(BitConverter.GetBytes(EngineVersion));
part1Bytes.AddRange(BitConverter.GetBytes(LicenseeVersion));
if (EngineVersion >= 868 && LicenseeVersion >= 18)
{
part1Bytes.AddRange(BitConverter.GetBytes(NetVersion));
}
part1Bytes.AddRange(TAGame_Replay_Soccar_TA.Serialize());
part1Bytes.AddRange(Properties.Serialize());
var bytes = part1Bytes.ToArray();
stream.Write(BitConverter.GetBytes(part1Bytes.Count), 0, 4);
var crc = Crc32.CalculateCrc(bytes, 0, bytes.Length, CRC_SEED);
stream.Write(BitConverter.GetBytes(crc), 0, 4);
stream.Write(bytes, 0, part1Bytes.Count);
List<byte> part2Bytes = new List<byte>();
part2Bytes.AddRange(BitConverter.GetBytes(Levels.Count));
foreach (var level in Levels)
{
part2Bytes.AddRange(level.Serialize());
}
part2Bytes.AddRange(BitConverter.GetBytes(KeyFrames.Count));
foreach (var keyFrame in KeyFrames)
{
part2Bytes.AddRange(keyFrame.Serialize());
}
var bw = new BitWriter(8 * 1024 * 1024); // 1MB is a decent starting point
var maxChannels = MaxChannels();
foreach (Frame f in Frames)
{
f.Serialize(maxChannels, Objects, EngineVersion, LicenseeVersion, NetVersion, bw);
}
var networkStreamBytes = bw.GetBytes();
var paddingSize = 512 - (networkStreamBytes.Length % 512); // Padding needed to match original replay files, but dont think it's necessary to produce good replay
if ( paddingSize == 512 )
{
paddingSize = 0;
}
part2Bytes.AddRange(BitConverter.GetBytes(networkStreamBytes.Length + paddingSize));
part2Bytes.AddRange(networkStreamBytes);
for (int i = 0; i < paddingSize; ++i)
{
part2Bytes.Add(0);
}
part2Bytes.AddRange(BitConverter.GetBytes(DebugStrings.Count));
foreach (var debugString in DebugStrings)
{
part2Bytes.AddRange(debugString.Serialize());
}
part2Bytes.AddRange(BitConverter.GetBytes(TickMarks.Count));
foreach (var tickMark in TickMarks)
{
part2Bytes.AddRange(tickMark.Serialize());
}
part2Bytes.AddRange(BitConverter.GetBytes(Packages.Count));
foreach (var packages in Packages)
{
part2Bytes.AddRange(packages.Serialize());
}
part2Bytes.AddRange(BitConverter.GetBytes(Objects.Length));
foreach (var obj in Objects)
{
part2Bytes.AddRange(obj.Serialize());
}
part2Bytes.AddRange(BitConverter.GetBytes(Names.Length));
foreach (var name in Names)
{
part2Bytes.AddRange(name.Serialize());
}
part2Bytes.AddRange(BitConverter.GetBytes(ClassIndexes.Count));
foreach (var classIndex in ClassIndexes)
{
part2Bytes.AddRange(classIndex.Serialize());
}
part2Bytes.AddRange(BitConverter.GetBytes(ClassNetCaches.Length));
foreach (var classNetCache in ClassNetCaches)
{
part2Bytes.AddRange(classNetCache.Serialize());
}
if (NetVersion >= 10)
{
part2Bytes.AddRange(BitConverter.GetBytes(Unknown));
}
bytes = part2Bytes.ToArray();
stream.Write(BitConverter.GetBytes(part2Bytes.Count), 0, 4);
crc = Crc32.CalculateCrc(bytes, 0, bytes.Length, CRC_SEED);
stream.Write(BitConverter.GetBytes(crc), 0, 4);
stream.Write(bytes, 0, part2Bytes.Count);
}
