public RakNetPacket(byte[] data)
{
Type = PacketType.RakNetPacket;
var decoder = new RakDecoder(data);
Flags = decoder.Byte();
if (IsACKorNAK)
{
Enclosing = new List <RakPacket>();
Count = decoder.Short();
MinEqualsMax = decoder.Byte() != 0;
if (MinEqualsMax)
{
PacketMin = decoder.Triad();
PacketMax = PacketMin;
return;
}
PacketMax = decoder.Triad();
}
else
{
SequenceNumber = decoder.Triad();
Enclosing = new List <RakPacket>();
while (!decoder.AtEnd)
{
Enclosing.Add(RakPacket.Parse(ref decoder));
}
}
}
public void SimplePacketTest()
{
Decoder = new RakDecoder(new byte[] { 0x01, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF, 0x11, 0x22, 0x00, 0xff, 0xff, 0x00, 0xfe, 0xfe, 0xfe, 0xfe, 0xfd, 0xfd, 0xfd, 0xfd, 0x12, 0x34, 0x56, 0x78 });
Assert.AreEqual(Decoder.Byte(), 0x01);
Assert.AreEqual(Decoder.Timestamp().ToString(), new RakTimestamp(0xAABBCCDDEEFF1122).ToString());
Assert.DoesNotThrow(Decoder.Magic);
Assert.AreEqual(Decoder.AtEnd, true);
Assert.Throws <IndexOutOfRangeException>(() => { Decoder.Byte(); }, "Should be out of bounds.");
}
public RemoveBlockPacket(ref RakDecoder decoder)
{
EID = decoder.Int();
X = decoder.Int();
Z = decoder.Int();
Y = decoder.Byte();
}
public UnconnectedPingPacket(byte[] data)
{
RakDecoder decoder = new RakDecoder(data);
Type = (PacketType)decoder.Byte();
TimeSinceStart = decoder.Timestamp();
decoder.Magic();
}
public OpenConnectionRequestPacket(byte[] data)
{
RakDecoder decoder = new RakDecoder(data);
Type = (PacketType)decoder.Byte();
decoder.Magic();
switch (Type)
{
case PacketType.OpenConnectionRequest1:
ProtocolVersion = decoder.Byte();
break;
case PacketType.OpenConnectionRequest2:
Address = decoder.Address();
MtuSize = decoder.Short();
ClientID = decoder.Long().Unsigned();
break;
default: Debug.Assert(false, "Unreachable."); break;
}
// Null padding
decoder.Raw(data.Length - decoder.Pos);
}
public UseItemPacket(ref RakDecoder decoder)
{
X = decoder.Int();
Y = decoder.Int();
Z = decoder.Int();
Face = decoder.Int();
Block = decoder.Short();
Meta = decoder.Byte();
ID = decoder.Int();
Fx = decoder.Float();
Fy = decoder.Float();
Fz = decoder.Float();
Px = decoder.Float();
Py = decoder.Float();
Pz = decoder.Float();
}
public AnimatePacket(ref RakDecoder decoder)
{
Action = decoder.Byte();
ID = decoder.Int();
}
public InteractPacket(ref RakDecoder decoder)
{
Action = decoder.Byte();
EID = decoder.Int();
Target = decoder.Int();
}
public ConnectionRequestPacket(ref RakDecoder decoder)
{
ClientGuid = decoder.Long().Unsigned();
TimeSinceStart = decoder.Timestamp();
UseEncryption = decoder.Byte();
}
public ReadyPacket(ref RakDecoder decoder)
{
Status = decoder.Byte();
}
// RakPacket should always be parsed from RakNetPacket
// which provides the RakDecoder as there can be multiple.
public static RakPacket Parse(ref RakDecoder decoder)
{
var flags = decoder.Byte();
var length = decoder.Short();
var relnum = RakTriad.FromInt(0, false);
var orderidx = RakTriad.FromInt(0, false);
byte orderch = 0;
if ((flags & IS_RELIABLE) != 0) // reliable
{
relnum = decoder.Triad();
}
if ((flags & IS_ORDERED) != 0) // ordered
{
orderidx = decoder.Triad();
orderch = decoder.Byte();
}
var msgid = (RakPacketType)decoder.Byte();
var packet = new RakPacket();
switch (msgid)
{
case RakPacketType.ConnectedPing: packet = new ConnectedPingPacket(ref decoder); break;
case RakPacketType.ConnectionRequest: packet = new ConnectionRequestPacket(ref decoder); break;
case RakPacketType.NewIncomingConnection: packet = new NewIncomingConnectionPacket(ref decoder); break;
case RakPacketType.PlayerDisconnect: break;
case RakPacketType.LoginRequest: packet = new LoginRequestPacket(ref decoder); break;
case RakPacketType.Ready: packet = new ReadyPacket(ref decoder); break;
case RakPacketType.RequestChunk: packet = new RequestChunkPacket(ref decoder); break;
case RakPacketType.MovePlayer: packet = new MovePlayerPacket(ref decoder); break;
case RakPacketType.SetHealth: packet = new SetHealthPacket(ref decoder); break;
case RakPacketType.Animate: packet = new AnimatePacket(ref decoder); break;
case RakPacketType.RemoveBlock: packet = new RemoveBlockPacket(ref decoder); break;
case RakPacketType.Message: packet = new MessagePacket(ref decoder); break;
case RakPacketType.UseItem: packet = new UseItemPacket(ref decoder); break;
case RakPacketType.Interact: packet = new InteractPacket(ref decoder); break;
default:
Console.WriteLine($"[!!] Unhandled RakPacket Type {msgid}!");
break;
}
packet.MessageFlags = flags;
packet.Length = length;
packet.ReliableNum = relnum;
packet.OrderingIndex = orderidx;
packet.OrderingChannel = orderch;
packet.MessageID = msgid;
return(packet);
}