public static byte[] GetPacketDataWithoutType(SourceDemoInfo info, byte[] data, IEnumerable <int> forbiddenFruits)
{
PacketReader reader = new PacketReader(info, data);
BitWriterDeluxe writer = new BitWriterDeluxe();
reader.MessageRead += (s, e) =>
{
if (!forbiddenFruits.Contains(e.Type))
{
writer.MoveBitsIn(e.DataBitWriter);
}
};
reader.Parse();
var newData = writer.Data;
if (PacketFormatValid(info, newData))
{
return(newData);
}
else
{
return(data);
}
}
public static void WriteDeleterPacket(BinaryWriter writer, int tick)
{
// Packet stuff
writer.Write((byte)ParsedDemo.MessageType.Packet);
writer.Write(tick);
writer.Write(new byte[0x54]);
// svc_packetentities
var bw2 = new BitWriterDeluxe();
bw2.WriteUnsignedBits(26, 6);
bw2.WriteUnsignedBits(4095, MAX_EDICT_BITS);
bw2.WriteBoolean(false);
//bw.WriteBits(deltaFrom, 32);
bw2.WriteBoolean(true);
bw2.WriteUnsignedBits(4095, MAX_EDICT_BITS);
var bw3 = GetDeleterPacketEntitiesData();
bw2.WriteUnsignedBits((uint)bw3.BitsWritten, DELTASIZE_BITS);
bw2.MoveBitsIn(bw3);
bw2.WriteBoolean(false);
var bytes = bw2.Data;
writer.Write(bytes.Count());
writer.Write(bytes);
}
public void MoveBitsIn(BitWriterDeluxe del)
{
int bitCount = del.BitsWritten;
var bytes = del.Data;
WriteBitsFromArray(bytes, 0, bitCount);
}
public DataReadEventArgs(byte[] data, BitWriterDeluxe dataBitWriter, byte[] withoutType, BitWriterDeluxe withoutTypeBitWriter, int type)
{
Data = data;
DataBitWriter = dataBitWriter;
WithoutType = withoutType;
WithoutTypeBitWriter = withoutTypeBitWriter;
Type = type;
}
private static BitWriterDeluxe GetDeleterPacketEntitiesData()
{
BitWriterDeluxe bw = new BitWriterDeluxe();
for (int i = 0; i < 4095; ++i)
{
bw.WriteUnsignedBits(0, 6);
bw.WriteBoolean(false);
bw.WriteBoolean(true);
}
return(bw);
}
public static void TestBitWriting()
{
try
{
Random rng = new Random();
const int size = 1000;
byte[] byteArray = new byte[size];
for (int i = 0; i < size; ++i)
{
byteArray[i] = ((byte)rng.Next(0, 255));
}
int currentBit = 0;
int totalBits = byteArray.Count() * 8;
BitWriterDeluxe writer = new BitWriterDeluxe();
while (currentBit < totalBits)
{
int addition = Math.Min(totalBits - currentBit, rng.Next(1, 100));
int newIndex = currentBit + addition;
writer.WriteRangeFromArray(byteArray, currentBit, newIndex);
currentBit = newIndex;
}
var results = writer.Data;
for (int i = 0; i < byteArray.Count(); ++i)
{
if (results[i] != byteArray[i])
{
throw new Exception(string.Format("{0} = {1} on index {2}", results[i], byteArray[i], i));
}
}
Console.WriteLine("Copying succeeded.");
Console.WriteLine("Size comparison {0} = {1}", byteArray.Count(), results.Count());
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
Console.ReadLine();
}
public void Parse()
{
try
{
int type = 0;
var bb = new BitBuffer(Data);
while (bb.BitsLeft > NetMessageBits && !ShouldStop)
{
var dataBitWriter = new BitWriterDeluxe();
var withoutTypeBitWriter = new BitWriterDeluxe();
int startIndex = bb.CurrentBit;
type = (int)bb.ReadUnsignedBits(NetMessageBits);
MessageTypeRead?.Invoke(this, new MessageReceivedEventArgs(type, bb));
int withoutTypeIndex = bb.CurrentBit;
MsgHandler handler;
if (Handlers.TryGetValue((uint)type, out handler))
{
handler(bb);
dataBitWriter.WriteRangeFromArray(Data, startIndex, bb.CurrentBit);
withoutTypeBitWriter.WriteRangeFromArray(Data, withoutTypeIndex, bb.CurrentBit);
var bytes = dataBitWriter.Data;
var bytes2 = withoutTypeBitWriter.Data;
MessageRead?.Invoke(this, new DataReadEventArgs(bytes, dataBitWriter, bytes2, withoutTypeBitWriter, type));
}
else
{
throw new Exception("Unknown packet type found.");
}
}
PacketSuccessfullyRead?.Invoke(this, new EventArgs());
}
catch (Exception e)
{
ExceptionThrown?.Invoke(this, new ExceptionEventArgs(e));
}
}
