253 -(void) serverProtocol {

   254     NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];

   255     TCPsocket sd;

   256     IPaddress ip;

   257     BOOL clientQuit = NO;

   258     uint8_t buffer[BUFFER_SIZE];

   259     uint8_t msgSize;

   260     NSString *message = nil;

   261 

   262     if (SDLNet_Init() < 0) {

   263         DLog(@"SDLNet_Init: %s", SDLNet_GetError());

   264         clientQuit = YES;

   265     }

   266 

   267     // Resolving the host using NULL make network interface to listen

   268     if (SDLNet_ResolveHost(&ip, "netserver.hedgewars.org", DEFAULT_NETGAME_PORT) < 0 && !clientQuit) {

   269         DLog(@"SDLNet_ResolveHost: %s\n", SDLNet_GetError());

   270         clientQuit = YES;

   271     }

   272 

   273     // Open a connection with the IP provided (listen on the host's port)

   274     if (!(sd = SDLNet_TCP_Open(&ip)) && !clientQuit) {

   275         DLog(@"SDLNet_TCP_Open: %s %\n", SDLNet_GetError(), ipcPort);

   276         clientQuit = YES;

   277     }

   278 

   279     DLog(@"Found server on port %d", DEFAULT_NETGAME_PORT);

   280     while (!clientQuit) {

   281         memset(buffer, '\0', BUFFER_SIZE);

   282         msgSize = SDLNet_TCP_Recv(sd, buffer, BUFFER_SIZE);

   283         if (msgSize <= 0) {

   284             DLog(@"SDLNet_TCP_Recv: %s", SDLNet_GetError());

   285             clientQuit = YES;

   286             break;

   287         }

   288 

   289         NSString *bufferedMessage = [[NSString alloc] initWithBytes:buffer length:msgSize encoding:NSASCIIStringEncoding];

   290         NSMutableArray *listOfCommands = [NSMutableArray arrayWithArray:[bufferedMessage componentsSeparatedByString:@"\n"]];

   291         [listOfCommands removeLastObject];

   292         [listOfCommands removeLastObject];

   293         NSString *command = [listOfCommands objectAtIndex:0];

   294         DLog(@"size = %d, %@", msgSize, listOfCommands);

   295         [bufferedMessage release];

   296         if ([command isEqualToString:@"CONNECTED"]) {

   297             message = [[NSString alloc] initWithFormat:@"NICK\nkoda\n\n"];

   298             SDLNet_TCP_Send(sd, [message UTF8String], [message length]);

   299             [message release];

   300 

   301             message = [[NSString alloc] initWithFormat:@"PROTO\n34\n\n"];

   302             SDLNet_TCP_Send(sd, [message UTF8String], [message length]);

   303             [message release];

   304         }

   305         else if ([command isEqualToString:@"PING"]) {

   306             if ([listOfCommands count] > 1)

   307                 message = [[NSString alloc] initWithFormat:@"PONG\n%@\n\n",[listOfCommands objectAtIndex:1]];

   308             else

   309                 message = [[NSString alloc] initWithString:@"PONG\n\n"];

   310 

   311             SDLNet_TCP_Send(sd, [message UTF8String], [message length]);

   312             [message release];

   313         }

   314         else if ([command isEqualToString:@"NICK"]) {

   315             //TODO: what is this for?

   316         }

   317         else if ([command isEqualToString:@"PROTO"]) {

   318             if ([[listOfCommands objectAtIndex:1] intValue] == 34) {

   319                 //TODO: unused

   320             }

   321         }

   322         else if ([command isEqualToString:@"ROOM"]) {

   323             //TODO: stub

   324         }

   325         else if ([command isEqualToString:@"LOBBY:LEFT"]) {

   326             //TODO: stub

   327         }

   328         else if ([command isEqualToString:@"LOBBY:JOINED"]) {

   329             //TODO: stub

   330         }

   331         else if ([command isEqualToString:@"SERVER_MESSAGE"]) {

   332             DLog(@"%@", [listOfCommands objectAtIndex:1]);

   333         }

   334         else if ([command isEqualToString:@"WARNING"]) {

   335             if ([listOfCommands count] > 1)

   336                 DLog(@"Server warning - %@", [listOfCommands objectAtIndex:1]);

   337             else

   338                 DLog(@"Server warning - unknown");

   339         }

   340         else if ([command isEqualToString:@"ERROR"]) {

   341             DLog(@"Server error - %@", [listOfCommands objectAtIndex:1]);

   342         }

   343         else if ([command isEqualToString:@"BYE"]) {

   344             //TODO: handle "Reconnected too fast"

   345             DLog(@"Server disconnected, reason: %@", [listOfCommands objectAtIndex:1]);

   346             clientQuit = YES;

   347         }

   348         else {

   349             DLog(@"Unknown/Unsupported message received: %@", command);

   350         }

   351     }

   352     DLog(@"Server exited, ending thread");

   353 

   354     // Close the client socket

   355     SDLNet_TCP_Close(sd);

   356     SDLNet_Quit();

   357 

   358     [pool release];

   359 }

   360