public MCPacket ReadPacket(Stream stream, MCFunction requestFunction)
{
var packet = new MCPacket();
var source = this.CreateDataProcessor(stream);
source.ForceBigEndian = true;
var frameId = source.ReadUShort();
source.ForceBigEndian = false;
var frame = MCFrame.Find(frameId);
var direction = frame.GetDirection(frameId);
var subHeader = MCSubHeader.Find(frame).CreateInstance();
subHeader.Read(source);
packet.SubHeader = subHeader;
var qHeader = this.CreateQHeader(direction);
qHeader.ReadPre(source);
packet.QHeader = qHeader;
ushort dataLength = (ushort)(source.ReadUShort() / source.LengthPerByte);
var data = source.ReadBytes(dataLength);
using (var ms = new MemoryStream(data))
{
var dataSource = this.CreateDataProcessor(ms);
dataSource.IgnoreConvert = true;
qHeader.ReadPost(dataSource);
var function = this.CreateFucntion(requestFunction, direction, qHeader, dataSource);
if (function != null)
{
function.Read(dataSource);
}
packet.Function = function;
}
return(packet);
}
public void WritePacket(Stream stream, MCPacket packet)
{
var direction = packet.Function.GetDirection();
var target = this.CreateDataProcessor(stream);
var frame = MCSubHeader.Find(packet.SubHeader.GetType()).Frame;
var frameId = frame.GetId(direction);
target.ForceBigEndian = true;
target.WriteUShort(frameId);
target.ForceBigEndian = false;
var subHeader = packet.SubHeader;
subHeader.Write(target);
var qHeader = packet.QHeader;
qHeader.WritePre(target);
using (var ms = new MemoryStream())
{
var dataTarget = this.CreateDataProcessor(ms);
qHeader.WritePost(dataTarget);
var function = packet.Function;
if (direction == PacketDirection.Request)
{
dataTarget.WriteUShort(MCFunctionRegistry.Find(function.GetType()).Id);
dataTarget.WriteUShort(function.GetSubCommandCode());
}
function.Write(dataTarget);
var data = ms.ToArray();
target.WriteUShort((ushort)data.Length);
target.IgnoreConvert = true;
target.WriteBytes(data);
}
}
