/// <summary>
/// Keep receiving incoming packets.
/// </summary>
void Update()
{
Buffer buffer;
IPEndPoint ip;
bool changed = false;
long time = System.DateTime.UtcNow.Ticks / 10000;
// Receive and process UDP packets one at a time
while (mUdp != null && mUdp.ReceivePacket(out buffer, out ip))
{
if (buffer.size > 0)
{
try
{
BinaryReader reader = buffer.BeginReading();
Packet response = (Packet)reader.ReadByte();
if (response == Packet.ResponseServerList)
{
isActive = true;
mNextSend = time + 3000;
knownServers.ReadFrom(reader, time);
knownServers.Cleanup(time);
changed = true;
}
else if (response == Packet.Error)
{
errorString = reader.ReadString();
Debug.LogWarning(errorString);
changed = true;
}
}
catch (System.Exception) { }
}
buffer.Recycle();
}
// Clean up old servers
if (knownServers.Cleanup(time))
{
changed = true;
}
// Trigger the listener callback
if (changed && onChange != null)
{
onChange();
}
else if (mNextSend < time && mUdp != null)
{
// Send out the update request
mNextSend = time + 3000;
mUdp.Send(mRequest, mRemoteAddress);
}
}
