public NetworkMessage GetMessage(int id, Connection <T> connection)
{
if (finished)
{
return(null);
}
int checkedThisRound = 0;
//Always assume at least 10ms lag
long latency = connection.latency;
if (latency < 10 * TimeSpan.TicksPerMillisecond)
{
latency = 10 * TimeSpan.TicksPerMillisecond;
}
//Resend message if it has been 2 RTT's
long checkTime = DateTime.UtcNow.Ticks - (latency * 2);
bool found = false;
while (!found)
{
if (sendParts[nextSendPart] >= 0 && checkTime > sendParts[nextSendPart])
{
found = true;
}
else
{
nextSendPart++;
if (nextSendPart == sendPartsLength)
{
nextSendPart = 0;
}
checkedThisRound++;
if (checkedThisRound == sendPartsLength)
{
//We checked to see if we could send any chunks and didn't find any.
break;
}
}
}
if (found)
{
int totalSize = 4;
if (networkMessage.data != null)
{
totalSize += networkMessage.data.Length;
}
int thisSendSize = 500;
if (nextSendPart == (sendPartsLength - 1))
{
thisSendSize = totalSize % 500;
}
//This is a retransmit, count the lost data
if (sendParts[nextSendPart] != 0)
{
connection.dataLoss += thisSendSize;
}
connection.dataSent += thisSendSize;
NetworkMessage sendMessage = NetworkMessage.Create(-4, 12 + thisSendSize, NetworkMessageType.UNORDERED_UNRELIABLE);
DarkUtils.WriteInt32ToByteArray(id, sendMessage.data.data, 0);
DarkUtils.WriteInt32ToByteArray(nextSendPart, sendMessage.data.data, 4);
//Don't include the header in the message length, we know it's there
DarkUtils.WriteInt32ToByteArray(totalSize - 4, sendMessage.data.data, 8);
if (nextSendPart == 0)
{
DarkUtils.WriteInt32ToByteArray(networkMessage.type, sendMessage.data.data, 12);
if (networkMessage.data != null && networkMessage.data.Length > 0)
{
Array.Copy(networkMessage.data.data, 0, sendMessage.data.data, 16, thisSendSize - 4);
}
}
else
{
Array.Copy(networkMessage.data.data, (nextSendPart * 500) - 4, sendMessage.data.data, 12, thisSendSize);
}
sendParts[nextSendPart] = -2;
nextSendPart++;
if (nextSendPart == sendPartsLength)
{
nextSendPart = 0;
}
return(sendMessage);
}
return(null);
}
