1 // ============================================================================
2 // Rocks'n'Diamonds - McDuffin Strikes Back!
3 // ----------------------------------------------------------------------------
4 // (c) 1995-2014 by Artsoft Entertainment
7 // http://www.artsoft.org/
8 // ----------------------------------------------------------------------------
10 // ============================================================================
15 #include "libgame/libgame.h"
26 struct NetworkClientPlayerInfo
29 char name[MAX_PLAYER_NAME_LEN + 1];
30 struct NetworkClientPlayerInfo *next;
33 static struct NetworkClientPlayerInfo first_player =
42 static TCPsocket sfd; /* TCP server socket */
43 static UDPsocket udp; /* UDP server socket */
44 static SDLNet_SocketSet rfds; /* socket set */
46 static struct NetworkBuffer *read_buffer = NULL;
47 static struct NetworkBuffer *write_buffer = NULL;
49 static boolean stop_network_game = FALSE;
50 static boolean stop_network_client = FALSE;
51 static char stop_network_client_message[MAX_OUTPUT_LINESIZE + 1];
53 static void DrawNetworkTextExt(char *message, int font_nr, boolean initialize)
55 static int xpos = 0, ypos = 0;
56 static int max_line_width = 0;
57 int font_width = getFontWidth(font_nr);
58 int font_height = getFontHeight(font_nr);
64 if (game_status == GAME_MODE_LOADING)
66 max_line_width = WIN_XSIZE;
68 xpos = (max_line_width - getTextWidth(message, font_nr)) / 2;
71 DrawText(xpos, ypos, message, font_nr);
78 max_line_width = SXSIZE;
80 DrawTextSCentered(ypos_1, font_nr, message);
82 /* calculate offset to x position caused by rounding */
83 int max_chars_per_line = max_line_width / font_width;
84 int xoffset = (max_line_width - max_chars_per_line * font_width) / 2;
90 Error(ERR_DEBUG, "========== %s ==========", message);
94 int max_chars_per_line = max_line_width / font_width;
95 int max_lines_per_text = 10;
96 int num_lines_spacing = (font_nr == FC_YELLOW ? 1 : 3);
97 int num_lines_printed = DrawTextBuffer(xpos, ypos, message, font_nr,
98 max_chars_per_line, -1,
99 max_lines_per_text, 0, -1,
102 ypos += (num_lines_printed + num_lines_spacing) * font_height;
104 Error(ERR_DEBUG, "%s", message);
110 static void DrawNetworkText(char *message)
112 DrawNetworkTextExt(message, FC_YELLOW, FALSE);
115 static void DrawNetworkText_Success(char *message)
117 DrawNetworkTextExt(message, FC_GREEN, FALSE);
120 static void DrawNetworkText_Failed(char *message)
122 DrawNetworkTextExt(message, FC_RED, FALSE);
125 static void DrawNetworkText_Title(char *message)
127 DrawNetworkTextExt(message, FC_GREEN, TRUE);
130 static void SendNetworkBufferToServer(struct NetworkBuffer *nb)
132 if (!network.enabled)
135 /* set message length header */
136 putNetwork32BitInteger(nb->buffer, nb->size - 4);
138 /* directly send the buffer to the network server */
139 SDLNet_TCP_Send(sfd, nb->buffer, nb->size);
142 struct NetworkClientPlayerInfo *getNetworkPlayer(int player_nr)
144 struct NetworkClientPlayerInfo *player = NULL;
146 for (player = &first_player; player; player = player->next)
147 if (player->nr == player_nr)
150 if (player == NULL) /* should not happen */
151 Error(ERR_EXIT, "protocol error: reference to non-existing player %d",
157 char *getNetworkPlayerName(int player_nr)
159 struct NetworkClientPlayerInfo *player;
162 return("the network game server");
163 else if (player_nr == first_player.nr)
166 for (player = &first_player; player; player = player->next)
167 if (player->nr == player_nr && strlen(player->name) > 0)
168 return(player->name);
170 return(EMPTY_PLAYER_NAME);
173 static void StartNetworkServer(int port)
178 #if defined(TARGET_SDL2)
179 server_thread = SDL_CreateThread(NetworkServerThread,
180 "NetworkServerThread", &p);
182 server_thread = SDL_CreateThread(NetworkServerThread, &p);
184 network_server = TRUE;
187 boolean ConnectToServer(char *hostname, int port)
193 if (read_buffer == NULL)
194 read_buffer = newNetworkBuffer();
196 if (write_buffer == NULL)
197 write_buffer = newNetworkBuffer();
199 DrawNetworkText_Title("Initializing Network");
202 port = DEFAULT_SERVER_PORT;
204 if (hostname == NULL)
206 // if no hostname given, try to auto-detect network server in local network
207 // by doing a UDP broadcast on the network server port and wait for answer
209 SDLNet_SocketSet udp_socket_set = SDLNet_AllocSocketSet(1);
211 Error(ERR_EXIT, "SDLNet_AllocSocketSet() failed: %s"), SDLNet_GetError();
213 udp = SDLNet_UDP_Open(0);
215 Error(ERR_EXIT, "SDLNet_UDP_Open() failed: %s", SDLNet_GetError());
217 if (SDLNet_UDP_AddSocket(udp_socket_set, udp) == -1)
218 Error(ERR_EXIT_NETWORK_SERVER, "SDLNet_TCP_AddSocket() failed: %s"),
221 char *data_ptr = "network server UDB broadcast";
222 int data_len = strlen(data_ptr) + 1;
223 IPaddress ip_address;
225 SDLNet_Write32(0xffffffff, &ip_address.host); /* 255.255.255.255 */
226 SDLNet_Write16(port, &ip_address.port);
238 SDLNet_UDP_Send(udp, -1, &packet);
240 DrawNetworkText("Looking for local network server ...");
242 /* wait for any local network server to answer UDP broadcast */
243 for (i = 0; i < 5; i++)
245 if (SDLNet_CheckSockets(udp_socket_set, 0) == 1)
247 int num_packets = SDLNet_UDP_Recv(udp, &packet);
249 if (num_packets == 1)
251 DrawNetworkText_Success("Network server found!");
253 server_host = SDLNet_Read32(&packet.address.host);
257 DrawNetworkText_Failed("No answer from network server!");
264 Delay_WithScreenUpdates(100);
268 if (server_host == 0)
269 DrawNetworkText_Failed("No network server found!");
272 rfds = SDLNet_AllocSocketSet(1);
276 SDLNet_ResolveHost(&ip, hostname, port);
278 if (ip.host == INADDR_NONE)
279 Error(ERR_EXIT, "cannot locate host '%s'", hostname);
281 server_host = SDLNet_Read32(&ip.host);
283 DrawNetworkText("Connecting to remote host ...");
287 // if no hostname was given and no network server was auto-detected in the
288 // local network, try to connect to a network server at the local host
289 if (server_host == 0)
290 server_host = 0x7f000001; /* 127.0.0.1 */
292 SDLNet_Write32(server_host, &ip.host);
293 SDLNet_Write16(port, &ip.port);
295 DrawNetworkText("Connecting to local host ...");
298 Error(ERR_DEBUG, "trying to connect to network server at %d.%d.%d.%d ...",
299 (server_host >> 24) & 0xff,
300 (server_host >> 16) & 0xff,
301 (server_host >> 8) & 0xff,
302 (server_host >> 0) & 0xff);
304 sfd = SDLNet_TCP_Open(&ip);
308 SDLNet_TCP_AddSocket(rfds, sfd);
310 DrawNetworkText_Success("Successfully connected!");
316 DrawNetworkText_Failed("Failed to connect to network server!");
318 printf("SDLNet_TCP_Open(): %s\n", SDLNet_GetError());
321 if (hostname) /* connect to specified server failed */
324 DrawNetworkText("Starting new local network server ...");
326 StartNetworkServer(port);
328 /* wait for server to start up and try connecting several times */
329 for (i = 0; i < 30; i++)
331 if ((sfd = SDLNet_TCP_Open(&ip))) /* connected */
333 DrawNetworkText_Success("Successfully connected!");
335 SDLNet_TCP_AddSocket(rfds, sfd);
339 Delay_WithScreenUpdates(100);
342 DrawNetworkText_Failed("Failed to connect to network server!");
344 /* when reaching this point, connect to newly started server has failed */
348 void SendToServer_PlayerName(char *player_name)
350 initNetworkBufferForWriting(write_buffer, OP_PLAYER_NAME, 0);
352 putNetworkBufferString(write_buffer, player_name);
354 SendNetworkBufferToServer(write_buffer);
356 Error(ERR_NETWORK_CLIENT, "you set your player name to \"%s\"", player_name);
359 void SendToServer_ProtocolVersion()
361 initNetworkBufferForWriting(write_buffer, OP_PROTOCOL_VERSION, 0);
363 putNetworkBuffer8BitInteger(write_buffer, PROTOCOL_VERSION_MAJOR);
364 putNetworkBuffer8BitInteger(write_buffer, PROTOCOL_VERSION_MINOR);
365 putNetworkBuffer8BitInteger(write_buffer, PROTOCOL_VERSION_PATCH);
367 SendNetworkBufferToServer(write_buffer);
370 void SendToServer_NrWanted(int nr_wanted)
372 initNetworkBufferForWriting(write_buffer, OP_NUMBER_WANTED, 0);
374 putNetworkBuffer8BitInteger(write_buffer, nr_wanted);
376 SendNetworkBufferToServer(write_buffer);
379 void SendToServer_StartPlaying()
381 unsigned int new_random_seed = InitRND(level.random_seed);
383 initNetworkBufferForWriting(write_buffer, OP_START_PLAYING, 0);
385 putNetworkBufferString( write_buffer, leveldir_current->identifier);
386 putNetworkBuffer16BitInteger(write_buffer, level_nr);
387 putNetworkBuffer32BitInteger(write_buffer, new_random_seed);
389 SendNetworkBufferToServer(write_buffer);
392 void SendToServer_PausePlaying()
394 initNetworkBufferForWriting(write_buffer, OP_PAUSE_PLAYING, 0);
396 SendNetworkBufferToServer(write_buffer);
399 void SendToServer_ContinuePlaying()
401 initNetworkBufferForWriting(write_buffer, OP_CONTINUE_PLAYING, 0);
403 SendNetworkBufferToServer(write_buffer);
406 void SendToServer_StopPlaying(int cause_for_stopping)
408 initNetworkBufferForWriting(write_buffer, OP_STOP_PLAYING, 0);
410 putNetworkBuffer8BitInteger(write_buffer, cause_for_stopping);
412 SendNetworkBufferToServer(write_buffer);
415 void SendToServer_MovePlayer(byte player_action)
417 initNetworkBufferForWriting(write_buffer, OP_MOVE_PLAYER, 0);
419 putNetworkBuffer8BitInteger(write_buffer, player_action);
421 SendNetworkBufferToServer(write_buffer);
424 static void Handle_OP_BAD_PROTOCOL_VERSION()
426 int protocol_version_major = getNetworkBuffer8BitInteger(read_buffer);
427 int protocol_version_minor = getNetworkBuffer8BitInteger(read_buffer);
429 Error(ERR_WARN, "protocol version mismatch");
430 Error(ERR_WARN, "server expects %d.%d.x instead of %d.%d.%d",
431 protocol_version_major,
432 protocol_version_minor,
433 PROTOCOL_VERSION_MAJOR,
434 PROTOCOL_VERSION_MINOR,
435 PROTOCOL_VERSION_PATCH);
437 sprintf(stop_network_client_message, "Network protocol version mismatch! Server expects version %d.%d.x instead of %d.%d.%d!",
438 protocol_version_major,
439 protocol_version_minor,
440 PROTOCOL_VERSION_MAJOR,
441 PROTOCOL_VERSION_MINOR,
442 PROTOCOL_VERSION_PATCH);
444 stop_network_client = TRUE;
447 static void Handle_OP_YOUR_NUMBER()
449 int old_client_nr = getNetworkBuffer8BitInteger(read_buffer);
450 int new_client_nr = getNetworkBuffer8BitInteger(read_buffer);
451 int new_index_nr = new_client_nr - 1;
452 struct PlayerInfo *old_local_player = local_player;
453 struct PlayerInfo *new_local_player = &stored_player[new_index_nr];
455 printf("OP_YOUR_NUMBER: %d\n", old_client_nr);
456 first_player.nr = new_client_nr;
458 if (old_local_player != new_local_player)
460 /* set relevant player settings and change to new player */
462 local_player = new_local_player;
464 old_local_player->connected_locally = FALSE;
465 new_local_player->connected_locally = TRUE;
467 old_local_player->connected_network = FALSE;
468 new_local_player->connected_network = TRUE;
471 if (first_player.nr > MAX_PLAYERS)
472 Error(ERR_EXIT, "sorry, more than %d players not allowed", MAX_PLAYERS);
474 Error(ERR_NETWORK_CLIENT, "you get client # %d", new_client_nr);
476 stored_player[new_index_nr].connected_network = TRUE;
479 static void Handle_OP_NUMBER_WANTED()
481 int old_client_nr = getNetworkBuffer8BitInteger(read_buffer);
482 int client_nr_wanted = getNetworkBuffer8BitInteger(read_buffer);
483 int new_client_nr = getNetworkBuffer8BitInteger(read_buffer);
484 int old_index_nr = old_client_nr - 1;
485 int new_index_nr = new_client_nr - 1;
486 int index_nr_wanted = client_nr_wanted - 1;
487 struct PlayerInfo *old_player = &stored_player[old_index_nr];
488 struct PlayerInfo *new_player = &stored_player[new_index_nr];
490 printf("OP_NUMBER_WANTED: %d\n", old_client_nr);
492 if (new_client_nr == client_nr_wanted) /* switching succeeded */
494 struct NetworkClientPlayerInfo *player;
496 if (old_client_nr != client_nr_wanted) /* client's nr has changed */
497 Error(ERR_NETWORK_CLIENT, "client %d switches to # %d",
498 old_client_nr, new_client_nr);
499 else if (old_client_nr == first_player.nr) /* local player keeps his nr */
500 Error(ERR_NETWORK_CLIENT, "keeping client # %d", new_client_nr);
502 if (old_client_nr != new_client_nr)
504 /* set relevant player settings and change to new player */
506 old_player->connected_network = FALSE;
507 new_player->connected_network = TRUE;
510 player = getNetworkPlayer(old_client_nr);
511 player->nr = new_client_nr;
513 if (old_player == local_player) /* local player switched */
515 local_player = new_player;
517 old_player->connected_locally = FALSE;
518 new_player->connected_locally = TRUE;
521 else if (old_client_nr == first_player.nr) /* failed -- local player? */
525 sprintf(request, "Sorry! Player %d already exists! You are player %d!",
526 index_nr_wanted + 1, new_index_nr + 1);
528 Request(request, REQ_CONFIRM);
530 Error(ERR_NETWORK_CLIENT, "cannot switch -- you keep client # %d",
534 if (game_status == GAME_MODE_MAIN)
535 DrawNetworkPlayers();
538 static void Handle_OP_PLAYER_NAME()
540 int player_nr = getNetworkBuffer8BitInteger(read_buffer);
541 char *player_name = getNetworkBufferString(read_buffer);
542 struct NetworkClientPlayerInfo *player = getNetworkPlayer(player_nr);
544 printf("OP_PLAYER_NAME: %d\n", player_nr);
546 strncpy(player->name, player_name, MAX_PLAYER_NAME_LEN);
547 player->name[MAX_PLAYER_NAME_LEN] = '\0';
549 Error(ERR_NETWORK_CLIENT, "client %d calls itself \"%s\"",
550 player_nr, player->name);
553 static void Handle_OP_PLAYER_CONNECTED()
555 struct NetworkClientPlayerInfo *player, *last_player = NULL;
556 int new_client_nr = getNetworkBuffer8BitInteger(read_buffer);
557 int new_index_nr = new_client_nr - 1;
559 printf("OP_PLAYER_CONNECTED: %d\n", new_client_nr);
560 Error(ERR_NETWORK_CLIENT, "new client %d connected", new_client_nr);
562 for (player = &first_player; player; player = player->next)
564 if (player->nr == new_client_nr)
565 Error(ERR_EXIT, "multiplayer server sent duplicate player id");
567 last_player = player;
570 last_player->next = player =
571 checked_malloc(sizeof(struct NetworkClientPlayerInfo));
572 player->nr = new_client_nr;
573 player->name[0] = '\0';
576 stored_player[new_index_nr].connected_network = TRUE;
579 static void Handle_OP_PLAYER_DISCONNECTED()
581 struct NetworkClientPlayerInfo *player, *player_disconnected;
582 int player_nr = getNetworkBuffer8BitInteger(read_buffer);
583 int index_nr = player_nr - 1;
585 printf("OP_PLAYER_DISCONNECTED: %d\n", player_nr);
586 player_disconnected = getNetworkPlayer(player_nr);
587 Error(ERR_NETWORK_CLIENT, "client %d (%s) disconnected",
588 player_nr, getNetworkPlayerName(player_nr));
590 for (player = &first_player; player; player = player->next)
591 if (player->next == player_disconnected)
592 player->next = player_disconnected->next;
593 free(player_disconnected);
595 stored_player[index_nr].connected_locally = FALSE;
596 stored_player[index_nr].connected_network = FALSE;
598 if (game_status == GAME_MODE_PLAYING)
602 sprintf(message, "Player %d left network server! Network game stopped!",
605 Request(message, REQ_CONFIRM | REQ_STAY_CLOSED);
607 SetGameStatus(GAME_MODE_MAIN);
611 else if (game_status == GAME_MODE_MAIN)
613 DrawNetworkPlayers();
617 static void Handle_OP_START_PLAYING()
619 int player_nr = getNetworkBuffer8BitInteger(read_buffer);
620 char *new_leveldir_identifier = getNetworkBufferString(read_buffer);
621 int new_level_nr = getNetworkBuffer16BitInteger(read_buffer);
622 unsigned int new_random_seed = getNetworkBuffer32BitInteger(read_buffer);
624 LevelDirTree *new_leveldir =
625 getTreeInfoFromIdentifier(leveldir_first, new_leveldir_identifier);
627 if (new_leveldir == NULL)
629 Error(ERR_WARN, "no such level identifier: '%s'", new_leveldir_identifier);
631 stop_network_game = TRUE;
636 printf("OP_START_PLAYING: %d\n", player_nr);
637 Error(ERR_NETWORK_CLIENT,
638 "client %d starts game [level %d from level identifier '%s']\n",
639 player_nr, new_level_nr, new_leveldir->identifier);
641 leveldir_current = new_leveldir;
642 level_nr = new_level_nr;
648 StartGameActions(FALSE, setup.autorecord, new_random_seed);
651 static void Handle_OP_PAUSE_PLAYING()
653 int player_nr = getNetworkBuffer8BitInteger(read_buffer);
655 printf("OP_PAUSE_PLAYING: %d\n", player_nr);
656 Error(ERR_NETWORK_CLIENT, "client %d pauses game", player_nr);
658 if (game_status == GAME_MODE_PLAYING)
661 DrawVideoDisplay(VIDEO_STATE_PAUSE_ON, 0);
665 static void Handle_OP_CONTINUE_PLAYING()
667 int player_nr = getNetworkBuffer8BitInteger(read_buffer);
669 printf("OP_CONTINUE_PLAYING: %d\n", player_nr);
670 Error(ERR_NETWORK_CLIENT, "client %d continues game", player_nr);
672 if (game_status == GAME_MODE_PLAYING)
674 tape.pausing = FALSE;
675 DrawVideoDisplay(VIDEO_STATE_PAUSE_OFF, 0);
679 static void Handle_OP_STOP_PLAYING()
681 int client_nr = getNetworkBuffer8BitInteger(read_buffer);
682 int cause_for_stopping = getNetworkBuffer8BitInteger(read_buffer);
684 printf("OP_STOP_PLAYING: %d [%d]\n", client_nr, cause_for_stopping);
685 Error(ERR_NETWORK_CLIENT, "client %d stops game [%d]",
686 client_nr, cause_for_stopping);
688 if (game_status == GAME_MODE_PLAYING)
690 int index_nr = client_nr - 1;
691 struct PlayerInfo *client_player = &stored_player[index_nr];
692 boolean stopped_by_remote_player = (!client_player->connected_locally);
695 sprintf(message, (cause_for_stopping == NETWORK_STOP_BY_PLAYER ?
696 "Network game stopped by player %d!" :
697 cause_for_stopping == NETWORK_STOP_BY_ERROR ?
698 "Network game stopped due to internal error!" :
699 "Network game stopped!"), client_nr);
701 if (cause_for_stopping != NETWORK_STOP_BY_PLAYER ||
702 stopped_by_remote_player)
703 Request(message, REQ_CONFIRM | REQ_STAY_CLOSED);
705 SetGameStatus(GAME_MODE_MAIN);
711 static void Handle_OP_MOVE_PLAYER()
713 int player_nr = getNetworkBuffer8BitInteger(read_buffer);
714 int server_frame_counter = getNetworkBuffer32BitInteger(read_buffer);
717 if (!network_playing)
720 if (server_frame_counter != FrameCounter)
722 Error(ERR_INFO, "frame counters of client %d and server out of sync",
724 Error(ERR_INFO, "frame counter of client is %d", FrameCounter);
725 Error(ERR_INFO, "frame counter of server is %d", server_frame_counter);
726 Error(ERR_INFO, "this should not happen -- please debug");
728 stop_network_game = TRUE;
733 /* copy valid player actions (will be set to 0 for not connected players) */
734 for (i = 0; i < MAX_PLAYERS; i++)
735 stored_player[i].effective_action =
736 getNetworkBuffer8BitInteger(read_buffer);
738 network_player_action_received = TRUE;
741 static void Handle_OP_BROADCAST_MESSAGE()
743 int player_nr = getNetworkBuffer8BitInteger(read_buffer);
745 printf("OP_BROADCAST_MESSAGE: %d\n", player_nr);
746 Error(ERR_NETWORK_CLIENT, "client %d sends message", player_nr);
749 static void HandleNetworkingMessage()
751 stop_network_game = FALSE;
753 initNetworkBufferForReading(read_buffer);
755 int message_type = getNetworkBuffer8BitInteger(read_buffer);
757 switch (message_type)
759 case OP_BAD_PROTOCOL_VERSION:
760 Handle_OP_BAD_PROTOCOL_VERSION();
764 Handle_OP_YOUR_NUMBER();
767 case OP_NUMBER_WANTED:
768 Handle_OP_NUMBER_WANTED();
772 Handle_OP_PLAYER_NAME();
775 case OP_PLAYER_CONNECTED:
776 Handle_OP_PLAYER_CONNECTED();
779 case OP_PLAYER_DISCONNECTED:
780 Handle_OP_PLAYER_DISCONNECTED();
783 case OP_START_PLAYING:
784 Handle_OP_START_PLAYING();
787 case OP_PAUSE_PLAYING:
788 Handle_OP_PAUSE_PLAYING();
791 case OP_CONTINUE_PLAYING:
792 Handle_OP_CONTINUE_PLAYING();
795 case OP_STOP_PLAYING:
796 Handle_OP_STOP_PLAYING();
800 Handle_OP_MOVE_PLAYER();
803 case OP_BROADCAST_MESSAGE:
804 Handle_OP_BROADCAST_MESSAGE();
809 Error(ERR_NETWORK_CLIENT,
810 "unknown opcode %d from server", message_type);
815 /* in case of internal error, stop network game */
816 if (stop_network_game)
817 SendToServer_StopPlaying(NETWORK_STOP_BY_ERROR);
820 static char *HandleNetworkingPackets()
824 /* ---------- check network server for activity ---------- */
826 int num_active_sockets = SDLNet_CheckSockets(rfds, 0);
828 if (num_active_sockets < 0)
829 return "Error checking network sockets!";
831 if (num_active_sockets == 0)
832 break; // no active sockets, stop here
834 /* ---------- read packets from network server ---------- */
836 initNetworkBufferForReceiving(read_buffer);
838 int num_bytes = receiveNetworkBufferPacket(read_buffer, sfd);
841 return "Error reading from network server!";
844 return "Connection to network server lost!";
846 HandleNetworkingMessage();
848 if (stop_network_client)
849 return stop_network_client_message;
855 static void FreeNetworkClientPlayerInfo(struct NetworkClientPlayerInfo *player)
861 FreeNetworkClientPlayerInfo(player->next);
863 checked_free(player);
866 static void HandleNetworkingDisconnect()
870 SDLNet_TCP_DelSocket(rfds, sfd);
871 SDLNet_TCP_Close(sfd);
873 network_playing = FALSE;
875 network.enabled = FALSE;
876 network.connected = FALSE;
878 setup.network_mode = FALSE;
880 for (i = 0; i < MAX_PLAYERS; i++)
881 stored_player[i].connected_network = FALSE;
883 FreeNetworkClientPlayerInfo(first_player.next);
886 first_player.next = NULL;
889 void HandleNetworking()
891 char *error_message = HandleNetworkingPackets();
893 if (error_message != NULL)
895 HandleNetworkingDisconnect();
897 if (game_status == GAME_MODE_PLAYING)
899 Request(error_message, REQ_CONFIRM | REQ_STAY_CLOSED);
901 SetGameStatus(GAME_MODE_MAIN);
907 Request(error_message, REQ_CONFIRM);
909 if (game_status == GAME_MODE_MAIN)
910 ClearNetworkPlayers();
915 void DisconnectFromNetworkServer()
917 DrawNetworkText_Title("Terminating Network");
918 DrawNetworkText("Disconnecting from network server ...");
920 HandleNetworkingDisconnect();
922 DrawNetworkText_Success("Successfully disconnected!");
924 /* short time to recognize result of network initialization */
925 Delay_WithScreenUpdates(1000);