private Message ReadSingle(Bitstream stream)
{
var isCompressed = stream.ReadBool();
if (isCompressed)
{
var uncompressed_length = stream.ReadBits(26);
var length = stream.ReadBits(18);
var data = new byte[length];
stream.Read(data, 0, (int)length);
return(new Message
{
IsCompressed = false,
Data = new SnappyDecompressor().Decompress(data, 0, data.Length)
});
}
else
{
var length = stream.ReadBits(18);
var data = new byte[length];
stream.Read(data, 0, (int)length);
return(new Message
{
IsCompressed = false,
Data = data
});
}
}
private UpdateFlag ReadHeader(ref uint id, Bitstream stream)
{
var value = stream.ReadBits(6);
if ((value & 0x30) > 0)
{
var a = (value >> 4) & 3;
var b = (uint)((a == 3) ? 16 : 0);
value = (stream.ReadBits((byte)(4 * a + b)) << 4) | (value & 0xF);
}
id = unchecked (id + value + 1);
var flags = UpdateFlag.None;
if (!stream.ReadBool())
{
if (stream.ReadBool())
{
flags |= UpdateFlag.EnterPvs;
}
}
else
{
flags |= UpdateFlag.LeavePvs;
if (stream.ReadBool())
{
flags |= UpdateFlag.Delete;
}
}
return(flags);
}
private void ReadChunkHeader(Bitstream stream)
{
header = new ChunkedHeader();
header.IsFile = stream.ReadBool();
if (header.IsFile)
{
var filenameLength = stream.ReadUInt32();
var filename = new byte[filenameLength + 1]; // semantically wrong. should be
// 0x104
stream.Read(filename, 0, (int)filenameLength); // and then read to end of string
filename[filenameLength] = 0; // whatever
header.Filename = Encoding.UTF8.GetString(filename);
throw new NotImplementedException();
}
header.IsCompressed = stream.ReadBool();
if (header.IsCompressed)
{
header.DecompressedLength = stream.ReadBits(26);
}
header.ByteLength = stream.ReadBits(26);
header.ChunkCount =
(header.ByteLength + DotaGameConnection.BYTES_PER_CHUNK - 1) /
DotaGameConnection.BYTES_PER_CHUNK;
Receiving = true;
dataIn = new byte[header.ByteLength];
dataReceived = new bool[header.ChunkCount];
countReceived = 0;
}
private float UnpackFloatCoord(Bitstream stream)
{
bool hasInteger = stream.ReadBool();
bool hasFraction = stream.ReadBool();
if (hasInteger || hasFraction)
{
bool sign = stream.ReadBool();
uint integer = 0;
if (hasInteger)
{
integer = stream.ReadBits(COORD_INTEGER_BITS) + 1;
}
uint fraction = 0;
if (hasFraction)
{
fraction = stream.ReadBits(COORD_FRACTIONAL_BITS);
}
float f = (float)(integer + fraction * COORD_RESOLUTION);
if (sign)
{
f *= -1;
}
return(f);
}
else
{
return(0);
}
}
private Nullable <Message> ReadChunk(Bitstream stream)
{
uint offset = stream.ReadBits(18);
uint count = stream.ReadBits(3);
log.DebugFormat("chunk start = {0} end = {1}", offset, count);
if (offset == 0)
{
Preconditions.CheckArgument(!Receiving);
ReadChunkHeader(stream);
}
else
{
Preconditions.CheckArgument(Receiving);
}
uint byteOffset = offset * Connection.BYTES_PER_CHUNK;
uint byteCount;
if (offset + count < header.ChunkCount)
{
byteCount = count * Connection.BYTES_PER_CHUNK;
}
else
{
byteCount = header.ByteLength - byteOffset;
}
stream.Read(dataIn, (int)byteOffset, (int)byteCount);
for (uint i = offset;
i < offset + count;
++i)
{
if (!dataReceived[i])
{
dataReceived[i] = true;
++countReceived;
}
}
if (countReceived == header.ChunkCount)
{
log.Debug("chunk complete");
Receiving = false;
return(new Message {
IsCompressed = header.IsCompressed,
DecompressedLength = header.DecompressedLength,
Data = dataIn,
});
}
else
{
log.DebugFormat("chunk has {0}/{1}", countReceived, header.ChunkCount);
return(null);
}
}
private UpdateFlag ReadHeader(ref uint id, Bitstream stream) {
uint value = stream.ReadBits(6);
if ((value & 0x30) > 0) {
uint a = (value >> 4) & 3;
uint b = (uint) ((a == 3) ? 16 : 0);
value = (stream.ReadBits((byte) (4 * a + b)) << 4) | (value & 0xF);
}
id = unchecked(id + value + 1);
var flags = UpdateFlag.None;
if (!stream.ReadBool()) {
if (stream.ReadBool()) {
flags |= UpdateFlag.EnterPvs;
}
} else {
flags |= UpdateFlag.LeavePvs;
if (stream.ReadBool()) {
flags |= UpdateFlag.Delete;
}
}
return flags;
}
private Message ReadSingle(Bitstream stream)
{
bool isCompressed = stream.ReadBool();
if (isCompressed)
{
uint uncompressed_length = stream.ReadBits(26);
uint length = stream.ReadBits(18);
byte[] data = new byte[length];
stream.Read(data, 0, (int)length);
return(new Message {
IsCompressed = false,
Data = Snappy.Sharp.Snappy.Uncompress(data)
});
}
else
{
uint length = stream.ReadBits(18);
Preconditions.CheckArgument(length < Int32.MaxValue);
byte[] data = new byte[length];
stream.Read(data, 0, (int)length);
return(new Message {
IsCompressed = false,
Data = data,
});
}
}
private float UnpackFloatCellCoord(PropertyInfo info, Bitstream stream, FloatType type)
{
uint value = stream.ReadBits(info.NumBits);
float f = value;
if ((value >> 31) > 0)
{
f *= -1;
}
if (type == FloatType.None)
{
uint fraction = stream.ReadBits(5);
return(f + 0.03125f * fraction);
}
else if (type == FloatType.LowPrecision)
{
uint fraction = stream.ReadBits(3);
return(f + 0.125f * fraction);
}
else if (type == FloatType.Integral)
{
return(f);
}
else
{
throw new InvalidOperationException("Unknown float type");
}
}
private string ReadKeyIfIncluded(Bitstream stream, List <string> keyHistory)
{
var has_key = stream.ReadBool();
if (!has_key)
{
return(null);
}
var is_substring = stream.ReadBool();
string key;
if (!is_substring)
{
key = stream.ReadString();
}
else
{
var fromIndex = (int)stream.ReadBits(5);
var fromLength = (int)stream.ReadBits(5);
key = keyHistory[fromIndex].Substring(0, fromLength);
key += stream.ReadString();
}
if (keyHistory.Count == KEY_HISTORY_SIZE)
{
keyHistory.RemoveAt(0);
}
keyHistory.Add(key);
return(key);
}
private string ReadKeyIfIncluded(Bitstream stream, List<string> keyHistory) {
bool has_key = stream.ReadBool();
if (!has_key) {
return null;
}
bool is_substring = stream.ReadBool();
string key;
if (!is_substring) {
key = stream.ReadString();
} else {
int fromIndex = (int) stream.ReadBits(5);
int fromLength = (int) stream.ReadBits(5);
key = keyHistory[fromIndex].Substring(0, fromLength);
key += stream.ReadString();
}
Preconditions.CheckArgument(key.Length <= MAX_KEY_SIZE);
if (keyHistory.Count == KEY_HISTORY_SIZE) {
keyHistory.RemoveAt(0);
}
keyHistory.Add(key);
return key;
}
public ulong UnpackInt64(PropertyInfo info, Bitstream stream)
{
if (info.Flags.HasFlag(PropertyInfo.MultiFlag.EncodedAgainstTickcount))
{
return(stream.ReadVarUInt());
}
var negate = false;
var secondBits = (byte)(info.NumBits - 32);
if (!info.Flags.HasFlag(PropertyInfo.MultiFlag.Unsigned))
{
--secondBits;
if (stream.ReadBool())
{
negate = true;
}
}
ulong a = stream.ReadBits(32);
ulong b = stream.ReadBits(secondBits);
var value = (b << 32) | a;
if (negate)
{
value = unchecked ((ulong)((long)value * -1));
}
return(value);
}
private void ReadEnterPvs(uint id, uint baseline, bool update_baseline, Bitstream stream)
{
var clazz = state.Classes[(int)stream.ReadBits(ClassBitLength)];
var serial = stream.ReadBits(10);
Create(id, clazz, baseline);
ReadAndUnpackFields(state.Slots[id].Entity, stream);
if (update_baseline)
{
state.Slots[id].Baselines[1 - baseline] = state.Slots[id].Entity.Copy();
}
}
private void ReadEnterPvs(uint id, uint baseline, bool update_baseline, Bitstream stream)
{
var clazz = client.Classes[(int)stream.ReadBits(this.ClassBitLength)];
var serial = stream.ReadBits(10);
log.Debug(String.Format("{0} entering pvs as a {1} (serial {2})", id, clazz.ClassName, serial));
Create(id, clazz, baseline);
ReadAndUnpackFields(client.Slots[id].Entity, stream);
if (update_baseline)
{
client.Slots[id].Baselines[1 - baseline] = client.Slots[id].Entity.Copy();
}
}
private Message?ReadChunk(Bitstream stream)
{
var offset = stream.ReadBits(18);
var count = stream.ReadBits(3);
if (offset == 0)
{
ReadChunkHeader(stream);
}
var byteOffset = offset * DotaGameConnection.BYTES_PER_CHUNK;
uint byteCount;
if (offset + count < header.ChunkCount)
{
byteCount = count * DotaGameConnection.BYTES_PER_CHUNK;
}
else
{
byteCount = header.ByteLength - byteOffset;
}
stream.Read(dataIn, (int)byteOffset, (int)byteCount);
for (var i = offset;
i < offset + count;
++i)
{
if (!dataReceived[i])
{
dataReceived[i] = true;
++countReceived;
}
}
if (countReceived == header.ChunkCount)
{
Receiving = false;
return(new Message
{
IsCompressed = header.IsCompressed,
DecompressedLength = header.DecompressedLength,
Data = dataIn
});
}
return(null);
}
public void Update(Bitstream stream, uint baseline, bool updateBaseline, uint updated, bool isDelta) {
uint id = UInt32.MaxValue;
uint found = 0;
while (found < updated) {
var flags = ReadHeader(ref id, stream);
if (flags.HasFlag(UpdateFlag.EnterPvs)) {
ReadEnterPvs(id, baseline, updateBaseline, stream);
} else if (flags.HasFlag(UpdateFlag.LeavePvs)) {
if (flags.HasFlag(UpdateFlag.Delete)) {
Delete(id);
}
} else {
ReadUpdate(id, stream);
}
++found;
}
if (isDelta) {
while (stream.ReadBool()) {
id = stream.ReadBits(11);
Delete(id);
}
}
}
public float UnpackFloat(PropertyInfo info, Bitstream stream) {
var flags = info.Flags;
if (flags.HasFlag(PropertyInfo.MultiFlag.Coord)) {
return UnpackFloatCoord(stream);
} else if (flags.HasFlag(PropertyInfo.MultiFlag.CoordMp)) {
return UnpackFloatCoordMp(stream, FloatType.None);
} else if (flags.HasFlag(PropertyInfo.MultiFlag.CoordMpLowPrecision)) {
return UnpackFloatCoordMp(stream, FloatType.LowPrecision);
} else if (flags.HasFlag(PropertyInfo.MultiFlag.CoordMpIntegral)) {
return UnpackFloatCoordMp(stream, FloatType.Integral);
} else if (flags.HasFlag(PropertyInfo.MultiFlag.NoScale)) {
return UnpackFloatNoScale(stream);
} else if (flags.HasFlag(PropertyInfo.MultiFlag.Normal)) {
return UnpackFloatNormal(stream);
} else if (flags.HasFlag(PropertyInfo.MultiFlag.CellCoord)) {
return UnpackFloatCellCoord(info, stream, FloatType.None);
} else if (flags.HasFlag(PropertyInfo.MultiFlag.CellCoordLowPrecision)) {
return UnpackFloatCellCoord(info, stream, FloatType.LowPrecision);
} else if (flags.HasFlag(PropertyInfo.MultiFlag.CellCoordIntegral)) {
return UnpackFloatCellCoord(info, stream, FloatType.Integral);
} else {
uint dividend = stream.ReadBits(info.NumBits);
uint divisor = (uint) (1 << info.NumBits) - 1;
float f = ((float) dividend) / divisor;
float range = info.HighValue - info.LowValue;
return f * range + info.LowValue;
}
}
private byte[] ReadValueIfIncluded(Bitstream stream, bool userDataFixedSize,
uint userDataSizeBits)
{
var has_value = stream.ReadBool();
if (!has_value)
{
return(null);
}
uint length;
uint bitLength;
if (userDataFixedSize)
{
length = (userDataSizeBits + 7) / 8;
bitLength = userDataSizeBits;
}
else
{
length = stream.ReadBits(14);
bitLength = 8 * length;
}
return(stream.ReadManyBits(bitLength));
}
private byte[] ReadValueIfIncluded(Bitstream stream, bool userDataFixedSize,
uint userDataSizeBits)
{
bool has_value = stream.ReadBool();
if (!has_value)
{
return(null);
}
uint length;
uint bitLength;
if (userDataFixedSize)
{
length = (userDataSizeBits + 7) / 8;
bitLength = userDataSizeBits;
}
else
{
length = stream.ReadBits(14);
bitLength = 8 * length;
}
Preconditions.CheckArgument(length <= MAX_VALUE_SIZE);
return(stream.ReadManyBits(bitLength));
}
public uint UnpackInt(PropertyInfo info, Bitstream stream)
{
var flags = info.Flags;
if (flags.HasFlag(PropertyInfo.MultiFlag.EncodedAgainstTickcount))
{
if (flags.HasFlag(PropertyInfo.MultiFlag.Unsigned))
{
return(stream.ReadVarUInt());
}
else
{
uint value = stream.ReadVarUInt();
return(unchecked ((uint)((-(value & 1)) ^ (value >> 1))));
}
}
else
{
byte numBits = info.NumBits;
uint isUnsigned = Convert.ToUInt32(flags.HasFlag(PropertyInfo.MultiFlag.Unsigned));
uint signer = (0x80000000 >> (32 - numBits)) & unchecked ((uint)(isUnsigned - 1));
uint value = stream.ReadBits(numBits) ^ signer;
return(value - signer);
}
}
private float UnpackFloatCoord(Bitstream stream) {
bool hasInteger = stream.ReadBool();
bool hasFraction = stream.ReadBool();
if (hasInteger || hasFraction) {
bool sign = stream.ReadBool();
uint integer = 0;
if (hasInteger) {
integer = stream.ReadBits(COORD_INTEGER_BITS) + 1;
}
uint fraction = 0;
if (hasFraction) {
fraction = stream.ReadBits(COORD_FRACTIONAL_BITS);
}
float f = (float) (integer + fraction * COORD_RESOLUTION);
if (sign) {
f *= -1;
}
return f;
} else {
return 0;
}
}
private Nullable<Message> ReadChunk(Bitstream stream) {
uint offset = stream.ReadBits(18);
uint count = stream.ReadBits(3);
log.DebugFormat("chunk start = {0} end = {1}", offset, count);
if (offset == 0) {
Preconditions.CheckArgument(!Receiving);
ReadChunkHeader(stream);
} else {
Preconditions.CheckArgument(Receiving);
}
uint byteOffset = offset * Connection.BYTES_PER_CHUNK;
uint byteCount;
if (offset + count < header.ChunkCount) {
byteCount = count * Connection.BYTES_PER_CHUNK;
} else {
byteCount = header.ByteLength - byteOffset;
}
stream.Read(dataIn, (int)byteOffset, (int)byteCount);
for (uint i = offset;
i < offset + count;
++i) {
if (!dataReceived[i]) {
dataReceived[i] = true;
++countReceived;
}
}
if (countReceived == header.ChunkCount) {
log.Debug("chunk complete");
Receiving = false;
return new Message {
IsCompressed = header.IsCompressed,
DecompressedLength = header.DecompressedLength,
Data = dataIn,
};
} else {
log.DebugFormat("chunk has {0}/{1}", countReceived, header.ChunkCount);
return null;
}
}
public string UnpackString(PropertyInfo info, Bitstream stream)
{
var length = stream.ReadBits(9);
var buffer = new byte[length];
stream.Read(buffer, 0, (int)length);
return(new string((from byte b in buffer select(char) b).ToArray <char>()));
}
public string UnpackString(PropertyInfo info, Bitstream stream)
{
uint length = stream.ReadBits(9);
Preconditions.CheckArgument(length <= MAX_STRING_LENGTH);
byte[] buffer = new byte[length];
stream.Read(buffer, 0, (int)length);
return(new String((from byte b in buffer select(char) b).ToArray <char>()));
}
private void ReadChunkHeader(Bitstream stream)
{
header = new ChunkedHeader();
header.IsFile = stream.ReadBool();
if (header.IsFile)
{
uint filenameLength = stream.ReadUInt32();
byte[] filename = new byte[filenameLength + 1]; // semantically wrong. should be
// 0x104
stream.Read(filename, 0, (int)filenameLength); // and then read to end of string
filename[filenameLength] = 0; // whatever
header.Filename = Encoding.UTF8.GetString(filename);
log.ErrorFormat("read filename: \"{0}\" ({1})", filenameLength, header.Filename);
throw new NotImplementedException();
}
header.IsCompressed = stream.ReadBool();
if (header.IsCompressed)
{
header.DecompressedLength = stream.ReadBits(26);
log.DebugFormat(
"chunkheader compressed: decompressed len {0}",
header.DecompressedLength);
}
header.ByteLength = stream.ReadBits(26);
header.ChunkCount =
(header.ByteLength + Connection.BYTES_PER_CHUNK - 1) /
Connection.BYTES_PER_CHUNK;
log.DebugFormat(
"chunkheader len {0} expecting {1} chunks",
header.ByteLength, header.ChunkCount);
Receiving = true;
dataIn = new byte[header.ByteLength];
dataReceived = new bool[header.ChunkCount];
countReceived = 0;
}
public float UnpackFloat(PropertyInfo info, Bitstream stream)
{
var flags = info.Flags;
if (flags.HasFlag(PropertyInfo.MultiFlag.Coord))
{
return(UnpackFloatCoord(stream));
}
else if (flags.HasFlag(PropertyInfo.MultiFlag.CoordMp))
{
return(UnpackFloatCoordMp(stream, FloatType.None));
}
else if (flags.HasFlag(PropertyInfo.MultiFlag.CoordMpLowPrecision))
{
return(UnpackFloatCoordMp(stream, FloatType.LowPrecision));
}
else if (flags.HasFlag(PropertyInfo.MultiFlag.CoordMpIntegral))
{
return(UnpackFloatCoordMp(stream, FloatType.Integral));
}
else if (flags.HasFlag(PropertyInfo.MultiFlag.NoScale))
{
return(UnpackFloatNoScale(stream));
}
else if (flags.HasFlag(PropertyInfo.MultiFlag.Normal))
{
return(UnpackFloatNormal(stream));
}
else if (flags.HasFlag(PropertyInfo.MultiFlag.CellCoord))
{
return(UnpackFloatCellCoord(info, stream, FloatType.None));
}
else if (flags.HasFlag(PropertyInfo.MultiFlag.CellCoordLowPrecision))
{
return(UnpackFloatCellCoord(info, stream, FloatType.LowPrecision));
}
else if (flags.HasFlag(PropertyInfo.MultiFlag.CellCoordIntegral))
{
return(UnpackFloatCellCoord(info, stream, FloatType.Integral));
}
else
{
uint dividend = stream.ReadBits(info.NumBits);
uint divisor = (uint)(1 << info.NumBits) - 1;
float f = ((float)dividend) / divisor;
float range = info.HighValue - info.LowValue;
return(f * range + info.LowValue);
}
}
public ulong UnpackInt64(PropertyInfo info, Bitstream stream)
{
if (info.Flags.HasFlag(PropertyInfo.MultiFlag.EncodedAgainstTickcount))
{
log.DebugFormat(
"{0}.{1} is encoded against tick count",
info.DtName, info.VarName);
return(stream.ReadVarUInt());
}
else
{
bool negate = false;
byte secondBits = (byte)(info.NumBits - 32);
if (!info.Flags.HasFlag(PropertyInfo.MultiFlag.Unsigned))
{
--secondBits;
if (stream.ReadBool())
{
negate = true;
}
}
Preconditions.CheckArgument(info.NumBits >= secondBits);
ulong a = stream.ReadBits(32);
ulong b = stream.ReadBits(secondBits);
ulong value = (b << 32) | a;
if (negate)
{
value = unchecked ((ulong)((long)value * -1));
}
return(value);
}
}
private float UnpackFloatNormal(Bitstream stream)
{
bool sign = stream.ReadBool();
uint value = stream.ReadBits(NORMAL_FRACTIONAL_BITS);
float f = (float)(value * NORMAL_RESOLUTION);
if (sign)
{
f *= -1;
}
return(f);
}
private string ReadKeyIfIncluded(Bitstream stream, List <string> keyHistory)
{
bool has_key = stream.ReadBool();
if (!has_key)
{
return(null);
}
bool is_substring = stream.ReadBool();
string key;
if (!is_substring)
{
key = stream.ReadString();
}
else
{
int fromIndex = (int)stream.ReadBits(5);
int fromLength = (int)stream.ReadBits(5);
key = keyHistory[fromIndex].Substring(0, fromLength);
key += stream.ReadString();
}
Preconditions.CheckArgument(key.Length <= MAX_KEY_SIZE);
if (keyHistory.Count == KEY_HISTORY_SIZE)
{
keyHistory.RemoveAt(0);
}
keyHistory.Add(key);
return(key);
}
private void ReadChunkHeader(Bitstream stream) {
header = new ChunkedHeader();
header.IsFile = stream.ReadBool();
if (header.IsFile) {
uint filenameLength = stream.ReadUInt32();
byte[] filename = new byte[filenameLength + 1]; // semantically wrong. should be
// 0x104
stream.Read(filename, 0, (int)filenameLength); // and then read to end of string
filename[filenameLength] = 0; // whatever
header.Filename = Encoding.UTF8.GetString(filename);
log.ErrorFormat("read filename: \"{0}\" ({1})", filenameLength, header.Filename);
throw new NotImplementedException();
}
header.IsCompressed = stream.ReadBool();
if (header.IsCompressed) {
header.DecompressedLength = stream.ReadBits(26);
log.DebugFormat(
"chunkheader compressed: decompressed len {0}",
header.DecompressedLength);
}
header.ByteLength = stream.ReadBits(26);
header.ChunkCount =
(header.ByteLength + Connection.BYTES_PER_CHUNK - 1) /
Connection.BYTES_PER_CHUNK;
log.DebugFormat(
"chunkheader len {0} expecting {1} chunks",
header.ByteLength, header.ChunkCount);
Receiving = true;
dataIn = new byte[header.ByteLength];
dataReceived = new bool[header.ChunkCount];
countReceived = 0;
}
public uint UnpackInt(PropertyInfo info, Bitstream stream) {
var flags = info.Flags;
if (flags.HasFlag(PropertyInfo.MultiFlag.EncodedAgainstTickcount)) {
if (flags.HasFlag(PropertyInfo.MultiFlag.Unsigned)) {
return stream.ReadVarUInt();
} else {
uint value = stream.ReadVarUInt();
return unchecked((uint) ((-(value & 1)) ^ (value >> 1)));
}
} else {
byte numBits = info.NumBits;
uint isUnsigned = Convert.ToUInt32(flags.HasFlag(PropertyInfo.MultiFlag.Unsigned));
uint signer = (0x80000000 >> (32 - numBits)) & unchecked((uint) (isUnsigned - 1));
uint value = stream.ReadBits(numBits) ^ signer;
return value - signer;
}
}
public void UnpackArray(uint tick, List <Property> elements, PropertyInfo info, Bitstream stream)
{
byte countBits = (byte)(Util.Log2(info.NumElements + 1));
uint count = stream.ReadBits(countBits);
if (elements.Count > count)
{
elements.RemoveRange(0, elements.Count - (int)count);
}
else
{
while (elements.Count < count)
{
elements.Add(Property.For(info.ArrayProp));
}
}
foreach (var element in elements)
{
element.Update(tick, this, stream);
}
}
public void Update(Bitstream stream, uint baseline, bool updateBaseline, uint updated, bool isDelta)
{
var id = uint.MaxValue;
uint found = 0;
while (found < updated)
{
var flags = ReadHeader(ref id, stream);
if (flags.HasFlag(UpdateFlag.EnterPvs))
{
ReadEnterPvs(id, baseline, updateBaseline, stream);
}
else if (flags.HasFlag(UpdateFlag.LeavePvs))
{
if (flags.HasFlag(UpdateFlag.Delete))
{
Delete(id);
}
}
else
{
ReadUpdate(id, stream);
}
++found;
}
if (isDelta)
{
while (stream.ReadBool())
{
id = stream.ReadBits(11);
Delete(id);
}
}
}
public void UnpackArray(uint tick, List<Property> elements, PropertyInfo info, Bitstream stream) {
byte countBits = (byte) (Util.Log2(info.NumElements + 1));
uint count = stream.ReadBits(countBits);
if (elements.Count > count) {
elements.RemoveRange(0, elements.Count - (int) count);
} else {
while (elements.Count < count) {
elements.Add(Property.For(info.ArrayProp));
}
}
foreach (var element in elements) {
element.Update(tick, this, stream);
}
}
public string UnpackString(PropertyInfo info, Bitstream stream) {
uint length = stream.ReadBits(9);
Preconditions.CheckArgument(length <= MAX_STRING_LENGTH);
byte[] buffer = new byte[length];
stream.Read(buffer, 0, (int) length);
return new String((from byte b in buffer select (char) b).ToArray<char>());
}
private byte[] ReadValueIfIncluded(Bitstream stream, bool userDataFixedSize,
uint userDataSizeBits) {
bool has_value = stream.ReadBool();
if (!has_value) {
return null;
}
uint length;
uint bitLength;
if (userDataFixedSize) {
length = (userDataSizeBits + 7) / 8;
bitLength = userDataSizeBits;
} else {
length = stream.ReadBits(14);
bitLength = 8 * length;
}
Preconditions.CheckArgument(length <= MAX_VALUE_SIZE);
return stream.ReadManyBits(bitLength);
}
private float UnpackFloatCellCoord(PropertyInfo info, Bitstream stream, FloatType type) {
uint value = stream.ReadBits(info.NumBits);
float f = value;
if ((value >> 31) > 0) {
f *= -1;
}
if (type == FloatType.None) {
uint fraction = stream.ReadBits(5);
return f + 0.03125f * fraction;
} else if (type == FloatType.LowPrecision) {
uint fraction = stream.ReadBits(3);
return f + 0.125f * fraction;
} else if (type == FloatType.Integral) {
return f;
} else {
throw new InvalidOperationException("Unknown float type");
}
}
private float UnpackFloatNormal(Bitstream stream) {
bool sign = stream.ReadBool();
uint value = stream.ReadBits(NORMAL_FRACTIONAL_BITS);
float f = (float) (value * NORMAL_RESOLUTION);
if (sign) {
f *= -1;
}
return f;
}
public ulong UnpackInt64(PropertyInfo info, Bitstream stream) {
if (info.Flags.HasFlag(PropertyInfo.MultiFlag.EncodedAgainstTickcount)) {
log.DebugFormat(
"{0}.{1} is encoded against tick count",
info.DtName, info.VarName);
return stream.ReadVarUInt();
} else {
bool negate = false;
byte secondBits = (byte) (info.NumBits - 32);
if (!info.Flags.HasFlag(PropertyInfo.MultiFlag.Unsigned)) {
--secondBits;
if (stream.ReadBool()) {
negate = true;
}
}
Preconditions.CheckArgument(info.NumBits >= secondBits);
ulong a = stream.ReadBits(32);
ulong b = stream.ReadBits(secondBits);
ulong value = (b << 32) | a;
if (negate) {
value = unchecked((ulong) ((long) value * -1));
}
return value;
}
}
private Message ReadSingle(Bitstream stream) {
bool isCompressed = stream.ReadBool();
if (isCompressed) {
uint uncompressed_length = stream.ReadBits(26);
uint length = stream.ReadBits(18);
byte[] data = new byte[length];
stream.Read(data, 0, (int) length);
return new Message {
IsCompressed = false,
Data = Snappy.Sharp.Snappy.Uncompress(data)
};
} else {
uint length = stream.ReadBits(18);
Preconditions.CheckArgument(length < Int32.MaxValue);
byte[] data = new byte[length];
stream.Read(data, 0, (int)length);
return new Message {
IsCompressed = false,
Data = data,
};
}
}
private void ReadEnterPvs(uint id, uint baseline, bool update_baseline, Bitstream stream) {
var clazz = client.Classes[(int) stream.ReadBits(this.ClassBitLength)];
var serial = stream.ReadBits(10);
log.Debug(String.Format("{0} entering pvs as a {1} (serial {2})", id, clazz.ClassName, serial));
Create(id, clazz, baseline);
ReadAndUnpackFields(client.Slots[id].Entity, stream);
if (update_baseline) {
client.Slots[id].Baselines[1 - baseline] = client.Slots[id].Entity.Copy();
}
}
