Peer/server discoveryPeer discovery is the process of clients detecting what servers are available. Discovery requests can be made in two ways; locally as a broadcast, which will send a signal to all peers on your subnet. Secondly you can contact an ip address directly and query it if a server is running. Responding to discovery requests are done in the same way regardless of how the request is made. Here's how to do on the client side; ie. the side which makes a request: // Enable DiscoveryResponse messages
config.EnableMessageType(NetIncomingMessageType.DiscoveryResponse);
// Emit a discovery signal
Client.DiscoverLocalPeers(14242); This will send a discovery signal to your subnet; Here's how to receive the signal on the server side, and send a response back to the client: // Enable DiscoveryRequest messages
config.EnableMessageType(NetIncomingMessageType.DiscoveryRequest);
// Standard message reading loop
while ((inc = Server.ReadMessage()) != null) { switch (inc.MessageType)
{ case NetIncomingMessageType.DiscoveryRequest: // Create a response and write some example data to it
NetOutgoingMessage response = Server.CreateMessage();
response.Write("My server name");
// Send the response to the sender of the request
Server.SendDiscoveryResponse(response, inc.SenderEndpoint); break;
When the response then reaches the client, you can read the data you wrote on the server: // Standard message reading loop
while ((inc = Client.ReadMessage()) != null) { switch (inc.MessageType)
{ case NetIncomingMessageType.DiscoveryResponse: Console.WriteLine("Found server at " + inc.SenderEndpoint + " name: " + inc.ReadString()); break;
|