/// <summary>
/// Creates Reliable Udp header from connectionRecord
/// </summary>
/// <param name="connectionRecord">Current <see cref="ReliableUdpConnectionRecord"/> (ConnectionRecord)</param>
/// <returns></returns>
internal static ReliableUdpHeader CreateReliableUdpHeader(ReliableUdpConnectionRecord connectionRecord)
{
ReliableUdpHeader header = new ReliableUdpHeader();
//RU: запись номера передачи
header.TransmissionId = connectionRecord.TransmissionId;
//RU: тип сообщения
header.ReliableUdpMessageType = connectionRecord.ReliableUdpMessageType;
//RU: установка номера пакета для передачи
header.PacketNumber = connectionRecord.SndNext;
//RU: запись управляющих флагов
ReliableUdpHeaderFlags flags = ReliableUdpHeaderFlags.None;
//RU: выставляем комбинацию двух флагов для единственного сообщения
//EN: set flags for single packet message
if (connectionRecord.NumberOfPackets == 1)
{
flags = ReliableUdpHeaderFlags.FirstPacket | ReliableUdpHeaderFlags.LastPacket;
}
//RU: дополнительный флаг если нам не требуется подтверждение
//EN: set additional flag if we don't need to use acknowledge mechanism
if (connectionRecord.IsNoAnswerNeeded)
{
flags = flags | ReliableUdpHeaderFlags.NoAsk;
}
//RU: это первый пакет
//EN: check for first packet
if (connectionRecord.NumberOfPackets > 1 && connectionRecord.SndNext == 0)
{
flags = flags | ReliableUdpHeaderFlags.FirstPacket;
}
//RU: это последний пакет
//EN: check for last packet
if (connectionRecord.NumberOfPackets > 1 &&
(connectionRecord.NumberOfPackets - connectionRecord.SndNext - 1 == 0))
{
flags = flags | ReliableUdpHeaderFlags.LastPacket;
}
//RU: записываем флаги
header.Flags = flags;
//RU: запись поля Options - размер всего сообщения
//EN: if we've got first message we should write total size of message
//EN: in header.Options
if (header.Flags.HasFlag(ReliableUdpHeaderFlags.FirstPacket))
{
header.Options = connectionRecord.OutcomingStream.Length;
}
return(header);
}
internal static ReliableUdpHeader CreateReliableUdpHeader(Int32 transmissionId,
ReliableUdpHeaderFlags flags,
ReliableUdpMessageTypes reliableUdpMessageType,
Int32 sequenceNumber, Int32 options)
{
ReliableUdpHeader header = new ReliableUdpHeader
{
TransmissionId = transmissionId,
Flags = flags,
ReliableUdpMessageType = reliableUdpMessageType,
PacketNumber = sequenceNumber,
Options = options,
};
return(header);
}
internal static ReliableUdpHeader CreateReliableUdpHeader(Int32 transmissionId,
ReliableUdpHeaderFlags flags,
ReliableUdpMessageTypes reliableUdpMessageType,
Int32 sequenceNumber, Int32 options)
{
ReliableUdpHeader header = new ReliableUdpHeader
{
TransmissionId = transmissionId,
Flags = flags,
ReliableUdpMessageType = reliableUdpMessageType,
PacketNumber = sequenceNumber,
Options = options,
};
return header;
}
