public ReceiveData Decode(BufferCache cache)
{
if (cache.Length < sizeof(Int16) * 2)
{
return(null);
}
int startPtr = cache.ReadPtr;
int packageLength = cache.ReadUInt16();
#if net_log
Debug.Log("decode read first 2 byte packageLength:" + packageLength);
#endif
if (packageLength > Transporter.MAX_PACKAGE_LENGTH)
{
Debug.Log("Transporter receive package length over max length :" + packageLength);
cache.ReadPtr = startPtr;
return(null);
}
if (cache.Length < packageLength)
{
Debug.Log("decode packageLenght over cache length packageLength:" + packageLength + "cache.Length:" + cache.Length);
cache.ReadPtr = startPtr;
return(null);
}
UInt16 typeId = cache.ReadUInt16();
#if net_log
Debug.Log("decode typeId:" + typeId);
#endif
Type packageType = ClientProtocol.GetTypeById(typeId);
if (packageType == null)
{
Debug.Log("Transporter receive package can not find id" + typeId);
return(null);
}
int packageBodyLength = packageLength - 2 - 4;
cache.ReadUInt16();
cache.ReadUInt16();
ReceiveData data = new ReceiveData();
data.MsgId = typeId;
data.MsgObject = Activator.CreateInstance(packageType);
MemoryStream mStream = cache.GetMemoryStream(packageBodyLength);
RuntimeTypeModel.Default.Deserialize(mStream, data.MsgObject, packageType);
return(data);
}