1 // ============================================================================
2 // Rocks'n'Diamonds - McDuffin Strikes Back!
3 // ----------------------------------------------------------------------------
4 // (c) 1995-2014 by Artsoft Entertainment
7 // http://www.artsoft.org/
8 // ----------------------------------------------------------------------------
10 // ============================================================================
17 #include "libgame/libgame.h"
23 static int num_clients = 0;
24 static boolean run_server_only_once = FALSE;
26 struct NetworkServerPlayerInfo
29 char player_name[MAX_PLAYER_NAME_LEN + 1];
34 boolean action_received;
36 struct NetworkServerPlayerInfo *next;
39 static struct NetworkServerPlayerInfo *first_player = NULL;
41 #define NEXT(player) ((player)->next ? (player)->next : first_player)
43 /* TODO: peer address */
44 static TCPsocket lfd; /* listening TCP socket */
45 static UDPsocket udp; /* listening UDP socket */
46 static SDLNet_SocketSet fds; /* socket set */
48 static struct NetworkBuffer *read_buffer = NULL;
49 static struct NetworkBuffer *write_buffer = NULL;
51 static unsigned int ServerFrameCounter = 0;
54 int getNetwork8BitInteger(byte *ptr)
59 int putNetwork8BitInteger(byte *ptr, int value)
66 int getNetwork16BitInteger(byte *ptr)
68 return ((ptr[0] << 8) |
72 int putNetwork16BitInteger(byte *ptr, int value)
74 ptr[0] = (value >> 8) & 0xff;
75 ptr[1] = (value >> 0) & 0xff;
80 int getNetwork32BitInteger(byte *ptr)
82 return ((ptr[0] << 24) |
88 int putNetwork32BitInteger(byte *ptr, int value)
90 ptr[0] = (value >> 24) & 0xff;
91 ptr[1] = (value >> 16) & 0xff;
92 ptr[2] = (value >> 8) & 0xff;
93 ptr[3] = (value >> 0) & 0xff;
98 char *getNetworkString(byte *ptr)
103 int putNetworkString(byte *ptr, char *s)
105 strcpy((char *)ptr, s);
107 return strlen(s) + 1;
110 struct NetworkBuffer *newNetworkBuffer()
112 struct NetworkBuffer *new = checked_calloc(sizeof(struct NetworkBuffer));
114 new->max_size = MAX_BUFFER_SIZE;
118 new->buffer = checked_calloc(new->max_size);
123 static void resetNetworkBufferForReading(struct NetworkBuffer *nb)
128 static void resetNetworkBufferForWriting(struct NetworkBuffer *nb)
134 void initNetworkBufferForReceiving(struct NetworkBuffer *nb)
136 resetNetworkBufferForWriting(nb);
139 void initNetworkBufferForReading(struct NetworkBuffer *nb)
141 resetNetworkBufferForReading(nb);
143 /* skip message length header */
144 getNetworkBuffer32BitInteger(nb);
147 void initNetworkBufferForWriting(struct NetworkBuffer *nb, int message_type,
150 resetNetworkBufferForWriting(nb);
152 /* will be replaced with message length before sending */
153 putNetworkBuffer32BitInteger(nb, 0);
155 putNetworkBuffer8BitInteger(nb, message_type);
156 putNetworkBuffer8BitInteger(nb, player_nr);
159 static void copyNetworkBufferForWriting(struct NetworkBuffer *nb_from,
160 struct NetworkBuffer *nb_to,
163 initNetworkBufferForReading(nb_from);
165 int message_type = getNetworkBuffer8BitInteger(nb_from);
167 /* skip player number */
168 getNetworkBuffer8BitInteger(nb_from);
170 initNetworkBufferForWriting(nb_to, message_type, player_nr);
172 while (nb_from->pos < nb_from->size)
174 int b = getNetworkBuffer8BitInteger(nb_from);
176 putNetworkBuffer8BitInteger(nb_to, b);
180 static void increaseNetworkBuffer(struct NetworkBuffer *nb, int additional_size)
182 /* add some more buffer size than is really required this time */
183 nb->max_size += additional_size + MAX_BUFFER_SIZE;
184 nb->buffer = checked_realloc(nb->buffer, nb->max_size);
187 int receiveNetworkBufferBytes(struct NetworkBuffer *nb, TCPsocket socket,
190 if (nb->pos + num_bytes > nb->max_size)
191 increaseNetworkBuffer(nb, num_bytes);
193 int result = SDLNet_TCP_Recv(socket, &nb->buffer[nb->pos], num_bytes);
195 if (result != num_bytes)
198 nb->pos += num_bytes;
204 int receiveNetworkBufferPacket(struct NetworkBuffer *nb, TCPsocket socket)
206 int num_bytes, num_bytes_head, num_bytes_body;
209 num_bytes = receiveNetworkBufferBytes(nb, socket, num_bytes_head);
211 if (num_bytes != num_bytes_head)
214 num_bytes_body = getNetwork32BitInteger(nb->buffer);
215 num_bytes = receiveNetworkBufferBytes(nb, socket, num_bytes_body);
220 int getNetworkBuffer8BitInteger(struct NetworkBuffer *nb)
224 if (nb->pos + num_bytes > nb->size)
227 int value = getNetwork8BitInteger(&nb->buffer[nb->pos]);
229 nb->pos += num_bytes;
234 void putNetworkBuffer8BitInteger(struct NetworkBuffer *nb, int value)
238 if (nb->pos + num_bytes > nb->max_size)
239 increaseNetworkBuffer(nb, num_bytes);
241 nb->pos += putNetwork8BitInteger(&nb->buffer[nb->pos], value);
245 int getNetworkBuffer16BitInteger(struct NetworkBuffer *nb)
249 if (nb->pos + num_bytes > nb->size)
252 int value = getNetwork16BitInteger(&nb->buffer[nb->pos]);
254 nb->pos += num_bytes;
259 void putNetworkBuffer16BitInteger(struct NetworkBuffer *nb, int value)
263 if (nb->pos + num_bytes > nb->max_size)
264 increaseNetworkBuffer(nb, num_bytes);
266 nb->pos += putNetwork16BitInteger(&nb->buffer[nb->pos], value);
270 int getNetworkBuffer32BitInteger(struct NetworkBuffer *nb)
274 if (nb->pos + num_bytes > nb->size)
277 int value = getNetwork32BitInteger(&nb->buffer[nb->pos]);
279 nb->pos += num_bytes;
284 void putNetworkBuffer32BitInteger(struct NetworkBuffer *nb, int value)
288 if (nb->pos + num_bytes > nb->max_size)
289 increaseNetworkBuffer(nb, num_bytes);
291 nb->pos += putNetwork32BitInteger(&nb->buffer[nb->pos], value);
295 char *getNetworkBufferString(struct NetworkBuffer *nb)
297 char *s = getNetworkString(&nb->buffer[nb->pos]);
299 nb->pos += strlen(s) + 1;
304 void putNetworkBufferString(struct NetworkBuffer *nb, char *s)
306 int num_bytes = strlen(s) + 1;
308 if (nb->pos + num_bytes > nb->max_size)
309 increaseNetworkBuffer(nb, num_bytes);
311 nb->pos += putNetworkString(&nb->buffer[nb->pos], s);
315 int getNetworkBufferFile(struct NetworkBuffer *nb, char *filename)
318 int num_bytes = getNetworkBuffer32BitInteger(nb);
321 if (!(file = fopen(filename, MODE_WRITE)))
323 Error(ERR_WARN, "cannot write file '%s' from network buffer", filename);
328 for (i = 0; i < num_bytes; i++)
330 int b = getNetworkBuffer8BitInteger(nb);
332 putFile8Bit(file, b);
340 int putNetworkBufferFile(struct NetworkBuffer *nb, char *filename)
343 int filesize_pos = nb->pos;
346 /* will be replaced with file size */
347 putNetworkBuffer32BitInteger(nb, 0);
349 if (!(file = openFile(filename, MODE_READ)))
351 Error(ERR_WARN, "cannot read file '%s' to network buffer", filename);
358 int b = getFile8Bit(file);
360 if (checkEndOfFile(file))
363 putNetworkBuffer8BitInteger(nb, b);
371 putNetwork32BitInteger(&nb->buffer[filesize_pos], num_bytes);
376 void dumpNetworkBuffer(struct NetworkBuffer *nb)
380 printf("::: network buffer maximum size: %d\n", nb->max_size);
381 printf("::: network buffer size: %d\n", nb->size);
382 printf("::: network buffer position : %d\n", nb->pos);
384 for (i = 0; i < nb->size; i++)
389 printf("%02x ", nb->buffer[i]);
395 static void SendNetworkBufferToAllButOne(struct NetworkBuffer *nb,
396 struct NetworkServerPlayerInfo *except)
398 struct NetworkServerPlayerInfo *player;
400 /* set message length header */
401 putNetwork32BitInteger(nb->buffer, nb->size - 4);
403 for (player = first_player; player != NULL; player = player->next)
405 if (player != except && player->introduced)
407 /* directly send the buffer to the network client */
408 SDLNet_TCP_Send(player->fd, nb->buffer, nb->size);
413 static void SendNetworkBufferToAll(struct NetworkBuffer *nb)
415 SendNetworkBufferToAllButOne(nb, NULL);
418 static void SendNetworkBufferToClient(struct NetworkBuffer *nb,
419 struct NetworkServerPlayerInfo *player)
421 /* set message length header */
422 putNetwork32BitInteger(nb->buffer, nb->size - 4);
424 /* directly send the buffer to the network client */
425 SDLNet_TCP_Send(player->fd, nb->buffer, nb->size);
428 static void RemovePlayer(struct NetworkServerPlayerInfo *player)
431 Error(ERR_NETWORK_SERVER, "dropping client %d (%s)",
432 player->number, player->player_name);
434 SDLNet_TCP_DelSocket(fds, player->fd);
435 SDLNet_TCP_Close(player->fd);
437 if (player == first_player)
439 first_player = player->next;
443 struct NetworkServerPlayerInfo *p;
445 for (p = first_player; p != NULL; p = p->next)
447 if (p->next && p->next == player)
449 p->next = player->next;
456 if (player->introduced)
458 initNetworkBufferForWriting(write_buffer, OP_PLAYER_DISCONNECTED,
461 SendNetworkBufferToAllButOne(write_buffer, player);
467 #if 0 /* do not terminate network server if last player disconnected */
468 if (run_server_only_once && num_clients == 0)
472 Error(ERR_NETWORK_SERVER, "no clients left");
473 Error(ERR_NETWORK_SERVER, "aborting");
481 static void AddPlayer(TCPsocket fd)
483 struct NetworkServerPlayerInfo *player, *p;
485 boolean again = TRUE;
487 SDLNet_TCP_AddSocket(fds, fd);
489 player = checked_calloc(sizeof(struct NetworkServerPlayerInfo));
492 player->player_name[0] = 0;
493 player->active = FALSE;
494 player->introduced = FALSE;
496 player->action_received = FALSE;
497 player->next = first_player;
499 first_player = player;
508 if (p->number == number)
521 player->number = number;
524 initNetworkBufferForWriting(write_buffer, OP_YOUR_NUMBER, 0);
526 putNetworkBuffer8BitInteger(write_buffer, player->number);
528 SendNetworkBufferToClient(write_buffer, player);
531 static void Handle_OP_PROTOCOL_VERSION(struct NetworkServerPlayerInfo *player)
533 int protocol_version_major = getNetworkBuffer8BitInteger(read_buffer);
534 int protocol_version_minor = getNetworkBuffer8BitInteger(read_buffer);
535 int protocol_version_patch = getNetworkBuffer8BitInteger(read_buffer);
537 if (protocol_version_major != PROTOCOL_VERSION_MAJOR ||
538 protocol_version_minor != PROTOCOL_VERSION_MINOR)
541 Error(ERR_NETWORK_SERVER,
542 "client %d (%s) has wrong protocol version %d.%d.%d",
543 player->number, player->player_name,
544 protocol_version_major,
545 protocol_version_minor,
546 protocol_version_patch);
548 initNetworkBufferForWriting(write_buffer, OP_BAD_PROTOCOL_VERSION, 0);
550 putNetworkBuffer8BitInteger(write_buffer, PROTOCOL_VERSION_MAJOR);
551 putNetworkBuffer8BitInteger(write_buffer, PROTOCOL_VERSION_MINOR);
552 putNetworkBuffer8BitInteger(write_buffer, PROTOCOL_VERSION_PATCH);
554 SendNetworkBufferToClient(write_buffer, player);
556 RemovePlayer(player);
561 Error(ERR_NETWORK_SERVER,
562 "client %d (%s) uses protocol version %d.%d.%d",
563 player->number, player->player_name,
564 protocol_version_major,
565 protocol_version_minor,
566 protocol_version_patch);
570 static void Handle_OP_NUMBER_WANTED(struct NetworkServerPlayerInfo *player)
572 int nr_wanted = getNetworkBuffer8BitInteger(read_buffer);
573 int client_nr = player->number;
574 boolean nr_is_free = TRUE;
575 struct NetworkServerPlayerInfo *p;
578 Error(ERR_NETWORK_SERVER, "client %d (%s) wants to switch to # %d",
579 player->number, player->player_name, nr_wanted);
581 for (p = first_player; p != NULL; p = p->next)
583 if (p->number == nr_wanted)
594 Error(ERR_NETWORK_SERVER, "client %d (%s) switches to # %d",
595 player->number, player->player_name, nr_wanted);
596 else if (player->number == nr_wanted)
597 Error(ERR_NETWORK_SERVER, "client %d (%s) already has # %d",
598 player->number, player->player_name, nr_wanted);
600 Error(ERR_NETWORK_SERVER,
601 "client %d (%s) cannot switch (client %d already exists)",
602 player->number, player->player_name, nr_wanted);
606 player->number = nr_wanted;
608 initNetworkBufferForWriting(write_buffer, OP_NUMBER_WANTED, client_nr);
610 putNetworkBuffer8BitInteger(write_buffer, nr_wanted);
611 putNetworkBuffer8BitInteger(write_buffer, player->number);
613 SendNetworkBufferToAll(write_buffer);
616 static void Handle_OP_PLAYER_NAME(struct NetworkServerPlayerInfo *player)
618 char *player_name = getNetworkBufferString(read_buffer);
621 strncpy(player->player_name, player_name, MAX_PLAYER_NAME_LEN);
622 player->player_name[MAX_PLAYER_NAME_LEN] = '\0';
624 for (i = 0; i < MAX_PLAYER_NAME_LEN; i++)
626 if (player->player_name[i] < ' ' ||
627 ((unsigned char)(player->player_name[i]) > 0x7e &&
628 (unsigned char)(player->player_name[i]) <= 0xa0))
630 player->player_name[i] = 0;
636 if (!player->introduced)
638 initNetworkBufferForWriting(write_buffer, OP_PLAYER_CONNECTED,
641 SendNetworkBufferToAllButOne(write_buffer, player);
645 Error(ERR_NETWORK_SERVER, "client %d calls itself \"%s\"",
646 player->number, player->player_name);
648 copyNetworkBufferForWriting(read_buffer, write_buffer, player->number);
650 SendNetworkBufferToAllButOne(write_buffer, player);
652 if (!player->introduced)
654 struct NetworkServerPlayerInfo *p;
656 for (p = first_player; p != NULL; p = p->next)
658 if (p != player && p->introduced)
660 initNetworkBufferForWriting(write_buffer, OP_PLAYER_CONNECTED,
663 SendNetworkBufferToClient(write_buffer, player);
665 initNetworkBufferForWriting(write_buffer, OP_PLAYER_NAME, p->number);
667 putNetworkBufferString(write_buffer, p->player_name);
669 SendNetworkBufferToClient(write_buffer, player);
674 player->introduced = TRUE;
677 static void Handle_OP_START_PLAYING(struct NetworkServerPlayerInfo *player)
679 char *new_leveldir_identifier = getNetworkBufferString(read_buffer);
680 int level_nr = getNetworkBuffer16BitInteger(read_buffer);
683 Error(ERR_NETWORK_SERVER,
684 "client %d (%s) starts game [level %d from level set '%s']",
685 player->number, player->player_name, level_nr,
686 new_leveldir_identifier);
688 struct NetworkServerPlayerInfo *p;
690 /* reset frame counter */
691 ServerFrameCounter = 0;
693 Error(ERR_NETWORK_SERVER, "resetting ServerFrameCounter to 0");
695 /* reset player actions */
696 for (p = first_player; p != NULL; p = p->next)
699 p->action_received = FALSE;
705 copyNetworkBufferForWriting(read_buffer, write_buffer, player->number);
707 SendNetworkBufferToAll(write_buffer);
710 static void Handle_OP_PAUSE_PLAYING(struct NetworkServerPlayerInfo *player)
713 Error(ERR_NETWORK_SERVER, "client %d (%s) pauses game",
714 player->number, player->player_name);
716 copyNetworkBufferForWriting(read_buffer, write_buffer, player->number);
718 SendNetworkBufferToAll(write_buffer);
721 static void Handle_OP_CONTINUE_PLAYING(struct NetworkServerPlayerInfo *player)
724 Error(ERR_NETWORK_SERVER, "client %d (%s) continues game",
725 player->number, player->player_name);
727 copyNetworkBufferForWriting(read_buffer, write_buffer, player->number);
729 SendNetworkBufferToAll(write_buffer);
732 static void Handle_OP_STOP_PLAYING(struct NetworkServerPlayerInfo *player)
734 int cause_for_stopping = getNetworkBuffer8BitInteger(read_buffer);
737 Error(ERR_NETWORK_SERVER, "client %d (%s) stops game [%d]",
738 player->number, player->player_name, cause_for_stopping);
740 copyNetworkBufferForWriting(read_buffer, write_buffer, player->number);
742 SendNetworkBufferToAll(write_buffer);
745 static void Handle_OP_MOVE_PLAYER(struct NetworkServerPlayerInfo *player)
747 int player_action = getNetworkBuffer8BitInteger(read_buffer);
748 int last_client_nr = 0;
749 struct NetworkServerPlayerInfo *p;
752 /* store player action */
753 for (p = first_player; p != NULL; p = p->next)
755 if (p->number == player->number)
757 p->action = player_action;
758 p->action_received = TRUE;
762 /* check if server received action from each player */
763 for (p = first_player; p != NULL; p = p->next)
765 if (!p->action_received)
768 if (p->number > last_client_nr)
769 last_client_nr = p->number;
772 int player_action_all[last_client_nr];
774 /* initialize all player actions to zero */
775 for (i = 0; i < last_client_nr; i++)
776 player_action_all[i] = 0;
778 /* broadcast actions of all players to all players */
779 for (p = first_player; p != NULL; p = p->next)
781 player_action_all[p->number - 1] = p->action;
784 p->action_received = FALSE;
787 initNetworkBufferForWriting(write_buffer, OP_MOVE_PLAYER, player->number);
789 putNetworkBuffer32BitInteger(write_buffer, ServerFrameCounter);
791 for (i = 0; i < last_client_nr; i++)
792 putNetworkBuffer8BitInteger(write_buffer, player_action_all[i]);
794 SendNetworkBufferToAll(write_buffer);
796 ServerFrameCounter++;
799 static void Handle_OP_BROADCAST_MESSAGE(struct NetworkServerPlayerInfo *player)
801 char *message = getNetworkBufferString(read_buffer);
804 Error(ERR_NETWORK_SERVER, "client %d (%s) sends message: %s",
805 player->number, player->player_name, message);
807 copyNetworkBufferForWriting(read_buffer, write_buffer, player->number);
809 SendNetworkBufferToAllButOne(write_buffer, player);
812 void ExitNetworkServer(int exit_value)
814 Error(ERR_NETWORK_SERVER, "exiting network server");
819 /* the following is not used for a standalone server;
820 the pointer points to an integer containing the port-number */
821 int NetworkServerThread(void *ptr)
823 NetworkServer(*((int *) ptr), 0);
825 /* should never be reached */
829 void NetworkServer(int port, int serveronly)
831 struct NetworkServerPlayerInfo *player;
834 #if defined(PLATFORM_UNIX) && !defined(PLATFORM_NEXT)
835 struct sigaction sact;
838 if (read_buffer == NULL)
839 read_buffer = newNetworkBuffer();
841 if (write_buffer == NULL)
842 write_buffer = newNetworkBuffer();
845 port = DEFAULT_SERVER_PORT;
847 // if only running the network server, exit on Ctrl-C
849 signal(SIGINT, ExitNetworkServer);
852 run_server_only_once = TRUE;
854 #if defined(PLATFORM_UNIX)
855 #if defined(PLATFORM_NEXT)
856 signal(SIGPIPE, SIG_IGN);
858 sact.sa_handler = SIG_IGN;
859 sigemptyset(&sact.sa_mask);
861 sigaction(SIGPIPE, &sact, NULL);
865 if (SDLNet_ResolveHost(&ip, NULL, port) == -1)
866 Error(ERR_EXIT_NETWORK_SERVER, "SDLNet_ResolveHost() failed: %s",
869 if ((fds = SDLNet_AllocSocketSet(MAX_PLAYERS + 1 + 1)) == NULL)
870 Error(ERR_EXIT_NETWORK_SERVER, "SDLNet_AllocSocketSet() failed: %s"),
873 if ((lfd = SDLNet_TCP_Open(&ip)) == NULL)
874 Error(ERR_EXIT_NETWORK_SERVER, "SDLNet_TCP_Open() failed: %s"),
877 if (SDLNet_TCP_AddSocket(fds, lfd) == -1)
878 Error(ERR_EXIT_NETWORK_SERVER, "SDLNet_TCP_AddSocket() failed: %s"),
881 if ((udp = SDLNet_UDP_Open(port)) == NULL)
882 Error(ERR_EXIT_NETWORK_SERVER, "SDLNet_UDP_Open() failed: %s",
885 if (SDLNet_UDP_AddSocket(fds, udp) == -1)
886 Error(ERR_EXIT_NETWORK_SERVER, "SDLNet_TCP_AddSocket() failed: %s"),
891 Error(ERR_NETWORK_SERVER, "started up, listening on port %d", port);
892 Error(ERR_NETWORK_SERVER, "using protocol version %d.%d.%d",
893 PROTOCOL_VERSION_MAJOR,
894 PROTOCOL_VERSION_MINOR,
895 PROTOCOL_VERSION_PATCH);
900 // wait for 100 ms for activity on open network sockets
901 if (SDLNet_CheckSockets(fds, 100) < 1)
904 /* accept incoming TCP connections */
905 if (SDLNet_SocketReady(lfd))
907 Error(ERR_DEBUG, "got TCP packet");
911 newsock = SDLNet_TCP_Accept(lfd);
917 /* accept incoming UDP packets */
918 if (SDLNet_SocketReady(udp))
920 Error(ERR_DEBUG, "got UDP packet");
922 static UDPpacket packet;
924 int num_packets = SDLNet_UDP_Recv(udp, &packet);
926 if (num_packets == 1)
929 SDLNet_UDP_Send(udp, -1, &packet);
933 for (player = first_player; player != NULL; player = player->next)
935 if (!SDLNet_SocketReady(player->fd))
938 initNetworkBufferForReceiving(read_buffer);
940 int num_bytes = receiveNetworkBufferPacket(read_buffer, player->fd);
945 Error(ERR_NETWORK_SERVER, "EOF from client %d (%s)",
946 player->number, player->player_name);
948 RemovePlayer(player);
953 initNetworkBufferForReading(read_buffer);
955 int message_type = getNetworkBuffer8BitInteger(read_buffer);
957 /* skip player number */
958 getNetworkBuffer8BitInteger(read_buffer);
960 if (!player->introduced &&
961 message_type != OP_PLAYER_NAME &&
962 message_type != OP_PROTOCOL_VERSION)
965 Error(ERR_NETWORK_SERVER, "got opcode %d for client %d which is not introduced yet (expected OP_PLAYER_NAME or OP_PROTOCOL_VERSION)", message_type, player->number);
967 RemovePlayer(player);
972 switch (message_type)
974 case OP_PROTOCOL_VERSION:
975 Handle_OP_PROTOCOL_VERSION(player);
978 case OP_NUMBER_WANTED:
979 Handle_OP_NUMBER_WANTED(player);
983 Handle_OP_PLAYER_NAME(player);
986 case OP_START_PLAYING:
987 Handle_OP_START_PLAYING(player);
990 case OP_PAUSE_PLAYING:
991 Handle_OP_PAUSE_PLAYING(player);
994 case OP_CONTINUE_PLAYING:
995 Handle_OP_CONTINUE_PLAYING(player);
998 case OP_STOP_PLAYING:
999 Handle_OP_STOP_PLAYING(player);
1002 case OP_MOVE_PLAYER:
1003 Handle_OP_MOVE_PLAYER(player);
1006 case OP_BROADCAST_MESSAGE:
1007 Handle_OP_BROADCAST_MESSAGE(player);
1011 if (options.verbose)
1012 Error(ERR_NETWORK_SERVER,
1013 "unknown opcode %d from client %d (%s)",
1014 message_type, player->number, player->player_name);