public void ReadFrom(ref ENetPacketReader reader)
{
Header.ReadFrom(ref reader);
PacketThrottleInterval = reader.ReadNetUInt32();
PacketThrottleAcceleration = reader.ReadNetUInt32();
PacketThrottleDeceleration = reader.ReadNetUInt32();
}
public void TryReadFrom_ReturnsFalseWhenSentTimeIsNotPresent()
{
var packetWriter = new ENetPacketWriter();
packetWriter.WriteNetEndian((ushort)ENET_PROTOCOL_HEADER_FLAG_SENT_TIME);
var packetReader = new ENetPacketReader(packetWriter.GetWrittenBuffer().Span);
Assert.IsFalse(ENetProtocolHeader.TryReadFrom(ref packetReader, out var _));
}
public void ReadFrom(ref ENetPacketReader reader)
{
Header.ReadFrom(ref reader);
StartSequenceNumber = reader.ReadNetUInt16();
DataLength = reader.ReadNetUInt16();
FragmentCount = reader.ReadNetUInt32();
FragmentNumber = reader.ReadNetUInt32();
TotalLength = reader.ReadNetUInt32();
FragmentOffset = reader.ReadNetUInt32();
}
public void TryReadFrom_DoesNotReadSentTimeWhenFlagIsNotSet()
{
var packetWriter = new ENetPacketWriter();
packetWriter.WriteValue <ushort>(0);
packetWriter.WriteValue <ushort>(0);
var packetReader = new ENetPacketReader(packetWriter.GetWrittenBuffer().Span);
Assert.IsTrue(ENetProtocolHeader.TryReadFrom(ref packetReader, out var header));
Assert.AreEqual(2, packetReader.Left.Length);
}
public void TryReadFrom_ReadsSentTimeWhenFlagIsSet()
{
const ushort sentTime = 0b1100_1100_0011_1010;
var packetWriter = new ENetPacketWriter();
packetWriter.WriteNetEndian((ushort)ENET_PROTOCOL_HEADER_FLAG_SENT_TIME);
packetWriter.WriteNetEndian((ushort)sentTime);
var packetReader = new ENetPacketReader(packetWriter.GetWrittenBuffer().Span);
Assert.IsTrue(ENetProtocolHeader.TryReadFrom(ref packetReader, out var header));
Assert.AreEqual(sentTime, header.SentTime);
}
public void ReadFrom(ref ENetPacketReader reader)
{
Header.ReadFrom(ref reader);
OutgoingPeerID = reader.ReadNetUInt16();
IncomingSessionID = reader.ReadByte();
OutgoingSessionID = reader.ReadByte();
MTU = reader.ReadNetUInt32();
WindowSize = reader.ReadNetUInt32();
ChannelCount = reader.ReadNetUInt32();
IncomingBandwidth = reader.ReadNetUInt32();
OutgoingBandwidth = reader.ReadNetUInt32();
PacketThrottleInterval = reader.ReadNetUInt32();
PacketThrottleAcceleration = reader.ReadNetUInt32();
PacketThrottleDeceleration = reader.ReadNetUInt32();
ConnectID = reader.ReadNetUInt32();
}
public void WriteTo_WritesSentTimeWhenFlagIsSet()
{
var writeHeader = new ENetProtocolHeader()
{
Flags = ENET_PROTOCOL_HEADER_FLAG_SENT_TIME,
SentTime = 123,
};
var packetWriter = new ENetPacketWriter();
writeHeader.WriteTo(packetWriter);
var packetReader = new ENetPacketReader(packetWriter.GetWrittenBuffer().Span);
Assert.True(ENetProtocolHeader.TryReadFrom(ref packetReader, out var readHeader));
Assert.AreEqual(writeHeader.Flags, readHeader.Flags);
Assert.AreEqual(writeHeader.SentTime, readHeader.SentTime);
}
public static bool TryReadFrom(ref ENetPacketReader packetReader, out ENetProtocolHeader header)
{
if (packetReader.Left.Length < MinSize)
{
header = default;
return(false);
}
var peerID = packetReader.ReadNetUInt16();
var sessionID = unchecked ((byte)((peerID & ENET_PROTOCOL_HEADER_SESSION_MASK) >> ENET_PROTOCOL_HEADER_SESSION_SHIFT));
var flags = unchecked ((ushort)(peerID & ENET_PROTOCOL_HEADER_FLAG_MASK));
peerID = unchecked ((ushort)(peerID & ~(ENET_PROTOCOL_HEADER_FLAG_MASK | ENET_PROTOCOL_HEADER_SESSION_MASK)));
ushort sentTime = 0;
if ((flags & ENET_PROTOCOL_HEADER_FLAG_SENT_TIME) != 0)
{
if (packetReader.Left.Length < SizeWithSentTime - sizeof(ushort))
{
header = default;
return(false);
}
sentTime = packetReader.ReadNetUInt16();
}
else
{
sentTime = 0;
}
header = new()
{
PeerId = peerID,
SentTime = sentTime,
Flags = flags,
SessionId = sessionID,
};
return(true);
}
public void BasicReadWriteTest()
{
var writeHeader = new ENetProtocolHeader()
{
Flags = ENET_PROTOCOL_HEADER_FLAG_SENT_TIME | ENET_PROTOCOL_HEADER_FLAG_COMPRESSED,
PeerId = 0b101010_010101, // 12bit
SentTime = ushort.MaxValue, // 2byte
SessionId = 0b11, // 2bit
};
var packetWriter = new ENetPacketWriter();
writeHeader.WriteTo(packetWriter);
var packetReader = new ENetPacketReader(packetWriter.GetWrittenBuffer().Span);
Assert.IsTrue(ENetProtocolHeader.TryReadFrom(ref packetReader, out var readHeader));
Assert.AreEqual(writeHeader.Flags, readHeader.Flags);
Assert.AreEqual(writeHeader.PeerId, readHeader.PeerId);
Assert.AreEqual(writeHeader.SentTime, readHeader.SentTime);
Assert.AreEqual(writeHeader.SessionId, readHeader.SessionId);
}
public void TryReadFrom_ReturnsFalseWhenBufferIsSmall()
{
var packetReader = new ENetPacketReader(new byte[1]);
Assert.IsFalse(ENetProtocolHeader.TryReadFrom(ref packetReader, out _));
}
public void ReadFrom(ref ENetPacketReader reader)
{
Header.ReadFrom(ref reader);
ReceivedReliableSequenceNumber = reader.ReadNetUInt16();
ReceivedSentTime = reader.ReadNetUInt16();
}
public void ReadFrom(ref ENetPacketReader reader)
{
Header.ReadFrom(ref reader);
UnreliableSequenceNumber = reader.ReadNetUInt16();
DataLength = reader.ReadNetUInt16();
}
public void ReadFrom(ref ENetPacketReader reader)
{
Command = reader.ReadByte();
ChannelID = reader.ReadByte();
ReliableSequenceNumber = reader.ReadNetUInt16();
}
public void ReadFrom(ref ENetPacketReader reader)
{
Header.ReadFrom(ref reader);
IncomingBandwidth = reader.ReadNetUInt32();
OutgoingBandwidth = reader.ReadNetUInt32();
}
public void ReadFrom(ref ENetPacketReader reader)
{
Header.ReadFrom(ref reader);
Data = reader.ReadNetUInt32();
}
public void ReadFrom(ref ENetPacketReader reader)
{
Header.ReadFrom(ref reader);
DataLength = reader.ReadNetUInt16();
}
public void ReadFrom(ref ENetPacketReader reader)
{
Header.ReadFrom(ref reader);
}
