-/***********************************************************
-* Rocks'n'Diamonds -- McDuffin Strikes Back! *
-*----------------------------------------------------------*
-* (c) 1995-98 Artsoft Entertainment *
-* Holger Schemel *
-* Oststrasse 11a *
-* 33604 Bielefeld *
-* phone: ++49 +521 290471 *
-* email: aeglos@valinor.owl.de *
-*----------------------------------------------------------*
-* network.c *
-***********************************************************/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
+// ============================================================================
+// Rocks'n'Diamonds - McDuffin Strikes Back!
+// ----------------------------------------------------------------------------
+// (c) 1995-2014 by Artsoft Entertainment
+// Holger Schemel
+// info@artsoft.org
+// http://www.artsoft.org/
+// ----------------------------------------------------------------------------
+// network.c
+// ============================================================================
+
+#include "libgame/platform.h"
+
+#if defined(NETWORK_AVALIABLE)
+
#include <signal.h>
-#include <sys/types.h>
#include <sys/time.h>
-#include <sys/wait.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <netinet/tcp.h>
-#include <arpa/inet.h>
-#include <netdb.h>
-#include <errno.h>
+
+#include "main.h"
+
+#include "libgame/libgame.h"
#include "network.h"
+#include "netserv.h"
#include "game.h"
#include "tape.h"
#include "files.h"
#include "tools.h"
-#include "misc.h"
-
-int norestart = 0;
-int nospeedup = 0;
-
-#define DEFAULTPORT 19503
-
-#define PROT_VERS_1 1
-#define PROT_VERS_2 0
-#define PROT_VERS_3 1
-
-#define OP_NICK 1
-#define OP_PLAY 2
-#define OP_MOVE 3
-#define OP_NRWANTED 4
-#define OP_LOST 5
-#define OP_GONE 6
-#define OP_CLEAR 7
-#define OP_NEW 8
-#define OP_LINES 9
-#define OP_GROW 10
-#define OP_MODE 11
-#define OP_LEVEL 12
-#define OP_BOT 13
-#define OP_KILL 14
-#define OP_PAUSE 15
-#define OP_CONT 16
-#define OP_VERSION 17
-#define OP_BADVERS 18
-#define OP_MSG 19
-#define OP_YOUARE 20
-#define OP_LINESTO 21
-#define OP_WON 22
-#define OP_ZERO 23
-
-#define MAXNICKLEN 14
-
-struct user
+#include "screens.h"
+
+struct NetworkClientPlayerInfo
{
byte nr;
- char name[MAXNICKLEN+2];
- struct user *next;
+ char name[MAX_PLAYER_NAME_LEN + 1];
+ struct NetworkClientPlayerInfo *next;
};
-struct user me =
+static struct NetworkClientPlayerInfo first_player =
{
0,
- "no name",
+ EMPTY_PLAYER_NAME,
NULL
};
/* server stuff */
-#define BUFLEN 4096
-
-int sfd;
-unsigned char realbuf[512], readbuf[BUFLEN], writbuf[BUFLEN];
-unsigned char *buf = realbuf + 4;
-int nread = 0, nwrite = 0;
-
-/* like memcpy, but guaranteed to handle overlap when s <= t */
-void copydown(char *s, char *t, int n)
-{
- for (; n; n--)
- *(s++) = *(t++);
-}
+static TCPsocket sfd; /* server socket */
+static SDLNet_SocketSet rfds; /* socket set */
-void sysmsg(char *s)
-{
- if (verbose)
- {
- printf("** %s\n", s);
- fflush(stdout);
- }
-}
+static byte realbuffer[512];
+static byte readbuffer[MAX_BUFFER_SIZE], writbuffer[MAX_BUFFER_SIZE];
+static byte *buffer = realbuffer + 4;
+static int nread = 0, nwrite = 0;
+static boolean stop_network_game = FALSE;
-void fatal(char *s)
+static void SendBufferToServer(int size)
{
- fprintf(stderr, "%s.\n", s);
- exit(1);
-}
+ if (!options.network)
+ return;
-void *mmalloc(int n)
-{
- void *r;
+ realbuffer[0] = realbuffer[1] = realbuffer[2] = 0;
+ realbuffer[3] = (byte)size;
+ buffer[0] = 0;
- r = malloc(n);
- if (r == NULL)
- fatal("Out of memory");
- return r;
-}
+ if (nwrite + 4 + size >= MAX_BUFFER_SIZE)
+ Error(ERR_EXIT, "internal error: network send buffer overflow");
-void u_sleep(int i)
-{
- struct timeval tm;
- tm.tv_sec = i / 1000000;
- tm.tv_usec = i % 1000000;
- select(0, NULL, NULL, NULL, &tm);
-}
+ memcpy(writbuffer + nwrite, realbuffer, 4 + size);
+ nwrite += 4 + size;
-void flushbuf()
-{
- if (nwrite)
- {
- write(sfd, writbuf, nwrite);
- nwrite = 0;
- }
+ /* directly send the buffer to the network server */
+ SDLNet_TCP_Send(sfd, writbuffer, nwrite);
+ nwrite = 0;
}
-void sendbuf(int len)
+struct NetworkClientPlayerInfo *getNetworkPlayer(int player_nr)
{
- if (!standalone)
- {
- realbuf[0] = realbuf[1] = realbuf[2] = 0;
- realbuf[3] = (unsigned char)len;
- buf[0] = 0;
- if (nwrite + 4 + len >= BUFLEN)
- fatal("Internal error: send buffer overflow");
- memcpy(writbuf + nwrite, realbuf, 4 + len);
- nwrite += 4 + len;
-
+ struct NetworkClientPlayerInfo *player = NULL;
- flushbuf();
+ for (player = &first_player; player; player = player->next)
+ if (player->nr == player_nr)
+ break;
+ if (player == NULL) /* should not happen */
+ Error(ERR_EXIT, "protocol error: reference to non-existing player %d",
+ player_nr);
- }
-}
-
-struct user *finduser(unsigned char c)
-{
- struct user *u;
-
- for (u = &me; u; u = u->next)
- if (u->nr == c)
- return u;
-
- fatal("Protocol error: reference to non-existing user");
- return NULL; /* so that gcc -Wall doesn't complain */
+ return player;
}
-char *get_user_name(unsigned char c)
+char *getNetworkPlayerName(int player_nr)
{
- struct user *u;
+ struct NetworkClientPlayerInfo *player;
- if (c == 0)
- return("the server");
- else if (c == me.nr)
+ if (player_nr == 0)
+ return("the network game server");
+ else if (player_nr == first_player.nr)
return("you");
else
- for (u = &me; u; u = u->next)
- if (u->nr == c && u->name && strlen(u->name))
- return(u->name);
+ for (player = &first_player; player; player = player->next)
+ if (player->nr == player_nr && strlen(player->name) > 0)
+ return(player->name);
- return("no name");
+ return(EMPTY_PLAYER_NAME);
}
-void startserver()
+static void StartNetworkServer(int port)
{
- char *options[2];
- int n = 0;
-
- options[0] = options[1] = NULL;
- if (verbose)
- options[n++] = "-v";
- if (nospeedup)
- options[n++] = "-nospeedup";
+ static int p;
- switch (fork())
- {
- case 0:
- execlp(
-#ifdef XTRISPATH
- XTRISPATH "/rnd_server",
+ p = port;
+#if defined(TARGET_SDL2)
+ server_thread = SDL_CreateThread(NetworkServerThread,
+ "NetworkServerThread", &p);
#else
- "rnd_server",
+ server_thread = SDL_CreateThread(NetworkServerThread, &p);
#endif
- "rnd_server", "-once", options[0], options[1], NULL);
-
- fprintf(stderr, "Can't start server '%s'.\n",
-#ifdef XTRISPATH
- XTRISPATH "/rnd_server"
-#else
- "rnd_server"
-#endif
- );
-
- _exit(1);
-
- case -1:
- fatal("fork() failed");
-
- default:
- return;
- }
+ network_server = TRUE;
}
-BOOL ConnectToServer(char *host, int port)
+boolean ConnectToServer(char *hostname, int port)
{
- struct hostent *hp;
- struct sockaddr_in s;
- struct protoent *tcpproto;
- int on = 1, i;
+ IPaddress ip;
+ int i;
+
+ if (port == 0)
+ port = DEFAULT_SERVER_PORT;
+
+ rfds = SDLNet_AllocSocketSet(1);
- if (host)
+ if (hostname)
{
- if ((s.sin_addr.s_addr = inet_addr(host)) == -1)
- {
- hp = gethostbyname(host);
- if (!hp)
- fatal("Host not found");
- s.sin_addr = *(struct in_addr *)(hp->h_addr_list[0]);
- }
+ SDLNet_ResolveHost(&ip, hostname, port);
+ if (ip.host == INADDR_NONE)
+ Error(ERR_EXIT, "cannot locate host '%s'", hostname);
}
else
- s.sin_addr.s_addr = inet_addr("127.0.0.1");
+ {
+ SDLNet_Write32(0x7f000001, &ip.host); /* 127.0.0.1 */
+ SDLNet_Write16(port, &ip.port);
+ }
- if (port == 0)
- port = DEFAULTPORT;
+ sfd = SDLNet_TCP_Open(&ip);
+
+ if (sfd)
+ {
+ SDLNet_TCP_AddSocket(rfds, sfd);
+ return TRUE;
+ }
+ else
+ {
+ printf("SDLNet_TCP_Open(): %s\n", SDLNet_GetError());
+ }
+
+ if (hostname) /* connect to specified server failed */
+ return FALSE;
- s.sin_port = htons(port);
- s.sin_family = AF_INET;
- sfd = socket(PF_INET, SOCK_STREAM, 0);
- if (sfd < 0)
- fatal("Out of file descriptors");
- if ((tcpproto = getprotobyname("tcp")) != NULL)
- setsockopt(sfd, tcpproto->p_proto, TCP_NODELAY, (char *)&on, sizeof(int));
+ printf("No rocksndiamonds server on localhost -- starting up one ...\n");
+ StartNetworkServer(port);
- if (connect(sfd, (struct sockaddr *)&s, sizeof(s)) < 0)
+ /* wait for server to start up and try connecting several times */
+ for (i = 0; i < 6; i++)
{
- if (!host)
+ Delay(500); /* wait 500 ms == 0.5 seconds */
+
+ if ((sfd = SDLNet_TCP_Open(&ip))) /* connected */
{
- printf("No rocksndiamonds server on localhost - starting up one ...\n");
- startserver();
- for (i=0; i<6; i++)
- {
- u_sleep(500000);
- close(sfd);
- sfd = socket(PF_INET, SOCK_STREAM, 0);
- if (sfd < 0)
- fatal("Out of file descriptors");
- setsockopt(sfd, tcpproto->p_proto, TCP_NODELAY, (char *)&on, sizeof(int));
- if (connect(sfd, (struct sockaddr *)&s, sizeof(s)) >= 0)
- break;
- }
- if (i==6)
- fatal("Can't connect to server");
+ SDLNet_TCP_AddSocket(rfds, sfd);
+ return TRUE;
}
- else
- fatal("Can't connect to server");
}
- return(TRUE);
+ /* when reaching this point, connect to newly started server has failed */
+ return FALSE;
}
-void SendToServer_Nickname(char *nickname)
+void SendToServer_PlayerName(char *player_name)
{
- static char msgbuf[300];
+ int len_player_name = strlen(player_name);
- buf[1] = OP_NICK;
- memcpy(&buf[2], nickname, strlen(nickname));
- sendbuf(2 + strlen(nickname));
- sprintf(msgbuf, "you set your nick to \"%s\"", nickname);
- sysmsg(msgbuf);
+ buffer[1] = OP_PLAYER_NAME;
+ memcpy(&buffer[2], player_name, len_player_name);
+ SendBufferToServer(2 + len_player_name);
+ Error(ERR_NETWORK_CLIENT, "you set your player name to \"%s\"", player_name);
}
void SendToServer_ProtocolVersion()
{
- buf[1] = OP_VERSION;
- buf[2] = PROT_VERS_1;
- buf[3] = PROT_VERS_2;
- buf[4] = PROT_VERS_3;
+ buffer[1] = OP_PROTOCOL_VERSION;
+ buffer[2] = PROTOCOL_VERSION_1;
+ buffer[3] = PROTOCOL_VERSION_2;
+ buffer[4] = PROTOCOL_VERSION_3;
- sendbuf(5);
+ SendBufferToServer(5);
}
void SendToServer_NrWanted(int nr_wanted)
{
- buf[1] = OP_NRWANTED;
- buf[2] = nr_wanted;
+ buffer[1] = OP_NUMBER_WANTED;
+ buffer[2] = nr_wanted;
- sendbuf(3);
+ SendBufferToServer(3);
}
void SendToServer_StartPlaying()
{
- unsigned long new_random_seed = InitRND(NEW_RANDOMIZE);
+ unsigned int new_random_seed = InitRND(level.random_seed);
+
+ int dummy = 0; /* !!! HAS NO MEANING ANYMORE !!! */
+ /* the name of the level must be enough */
+
+ buffer[1] = OP_START_PLAYING;
+ buffer[2] = (byte)(level_nr >> 8);
+ buffer[3] = (byte)(level_nr & 0xff);
+ buffer[4] = (byte)(dummy >> 8);
+ buffer[5] = (byte)(dummy & 0xff);
+
+ buffer[6] = (unsigned char)((new_random_seed >> 24) & 0xff);
+ buffer[7] = (unsigned char)((new_random_seed >> 16) & 0xff);
+ buffer[8] = (unsigned char)((new_random_seed >> 8) & 0xff);
+ buffer[9] = (unsigned char)((new_random_seed >> 0) & 0xff);
+
+ strcpy((char *)&buffer[10], leveldir_current->identifier);
+
+ SendBufferToServer(10 + strlen(leveldir_current->identifier) + 1);
+}
+
+void SendToServer_PausePlaying()
+{
+ buffer[1] = OP_PAUSE_PLAYING;
+
+ SendBufferToServer(2);
+}
- buf[1] = OP_PLAY;
- buf[2] = (byte)(level_nr >> 8);
- buf[3] = (byte)(level_nr & 0xff);
- buf[4] = (byte)(leveldir_nr >> 8);
- buf[5] = (byte)(leveldir_nr & 0xff);
+void SendToServer_ContinuePlaying()
+{
+ buffer[1] = OP_CONTINUE_PLAYING;
- buf[6] = (unsigned char)((new_random_seed >> 24) & 0xff);
- buf[7] = (unsigned char)((new_random_seed >> 16) & 0xff);
- buf[8] = (unsigned char)((new_random_seed >> 8) & 0xff);
- buf[9] = (unsigned char)((new_random_seed >> 0) & 0xff);
+ SendBufferToServer(2);
+}
- strcpy(&buf[10], leveldir[leveldir_nr].name);
+void SendToServer_StopPlaying(int cause_for_stopping)
+{
+ buffer[1] = OP_STOP_PLAYING;
+ buffer[2] = cause_for_stopping;
- sendbuf(10 + strlen(leveldir[leveldir_nr].name)+1);
+ SendBufferToServer(3);
}
void SendToServer_MovePlayer(byte player_action)
{
- buf[1] = OP_MOVE;
- buf[2] = player_action;
+ buffer[1] = OP_MOVE_PLAYER;
+ buffer[2] = player_action;
- sendbuf(3);
+ SendBufferToServer(3);
+}
+
+static void Handle_OP_BAD_PROTOCOL_VERSION()
+{
+ Error(ERR_WARN, "protocol version mismatch");
+ Error(ERR_EXIT, "server expects %d.%d.x instead of %d.%d.%d",
+ buffer[2], buffer[3],
+ PROTOCOL_VERSION_1, PROTOCOL_VERSION_2, PROTOCOL_VERSION_3);
}
-void handlemessages()
+static void Handle_OP_YOUR_NUMBER()
{
- unsigned int len;
- struct user *u, *v = NULL;
- static char msgbuf[300];
+ int new_client_nr = buffer[2];
+ int new_index_nr = new_client_nr - 1;
+ struct PlayerInfo *old_local_player = local_player;
+ struct PlayerInfo *new_local_player = &stored_player[new_index_nr];
- while (nread >= 4 && nread >= 4 + readbuf[3])
+ printf("OP_YOUR_NUMBER: %d\n", buffer[0]);
+ first_player.nr = new_client_nr;
+
+ if (old_local_player != new_local_player)
{
- len = readbuf[3];
- if (readbuf[0] || readbuf[1] || readbuf[2])
- fatal("Wrong server line length");
+ /* copy existing player settings and change to new player */
+
+ *new_local_player = *old_local_player;
+ old_local_player->connected = FALSE;
+ local_player = new_local_player;
+ }
- memcpy(buf, &readbuf[4], len);
- nread -= 4 + len;
- copydown(readbuf, readbuf + 4 + len, nread);
+ if (first_player.nr > MAX_PLAYERS)
+ Error(ERR_EXIT, "sorry, more than %d players not allowed", MAX_PLAYERS);
- switch(buf[1])
+ Error(ERR_NETWORK_CLIENT, "you get client # %d", new_client_nr);
+}
+
+static void Handle_OP_NUMBER_WANTED()
+{
+ int client_nr_wanted = buffer[2];
+ int old_client_nr = buffer[0];
+ int new_client_nr = buffer[3];
+ int old_index_nr = old_client_nr - 1;
+ int new_index_nr = new_client_nr - 1;
+ int index_nr_wanted = client_nr_wanted - 1;
+ struct PlayerInfo *old_player = &stored_player[old_index_nr];
+ struct PlayerInfo *new_player = &stored_player[new_index_nr];
+
+ printf("OP_NUMBER_WANTED: %d\n", buffer[0]);
+
+ if (new_client_nr == client_nr_wanted) /* switching succeeded */
+ {
+ struct NetworkClientPlayerInfo *player;
+
+ if (old_client_nr != client_nr_wanted) /* client's nr has changed */
+ Error(ERR_NETWORK_CLIENT, "client %d switches to # %d",
+ old_client_nr, new_client_nr);
+ else if (old_client_nr == first_player.nr) /* local player keeps his nr */
+ Error(ERR_NETWORK_CLIENT, "keeping client # %d", new_client_nr);
+
+ if (old_client_nr != new_client_nr)
{
- case OP_YOUARE:
- {
- int new_client_nr = buf[2];
- int new_index_nr = new_client_nr - 1;
+ /* copy existing player settings and change to new player */
- printf("OP_YOUARE: %d\n", buf[0]);
- me.nr = new_client_nr;
+ *new_player = *old_player;
+ old_player->connected = FALSE;
+ }
- stored_player[new_index_nr] = *local_player;
- local_player = &stored_player[new_index_nr];
+ player = getNetworkPlayer(old_client_nr);
+ player->nr = new_client_nr;
- TestPlayer = new_index_nr;
+ if (old_player == local_player) /* local player switched */
+ local_player = new_player;
+ }
+ else if (old_client_nr == first_player.nr) /* failed -- local player? */
+ {
+ char request[100];
- if (me.nr > MAX_PLAYERS)
- Error(ERR_EXIT, "sorry - no more than %d players", MAX_PLAYERS);
+ sprintf(request, "Sorry! Player %d already exists! You are player %d!",
+ index_nr_wanted + 1, new_index_nr + 1);
- sprintf(msgbuf, "you get client # %d", new_client_nr);
- sysmsg(msgbuf);
+ Request(request, REQ_CONFIRM);
- break;
- }
+ Error(ERR_NETWORK_CLIENT, "cannot switch -- you keep client # %d",
+ new_client_nr);
+ }
+}
- case OP_NRWANTED:
- {
- int client_nr_wanted = buf[2];
- int new_client_nr = buf[3];
- int new_index_nr = new_client_nr - 1;
+static void Handle_OP_PLAYER_NAME(unsigned int len)
+{
+ struct NetworkClientPlayerInfo *player;
+ int player_nr = (int)buffer[0];
+
+ printf("OP_PLAYER_NAME: %d\n", player_nr);
+ player = getNetworkPlayer(player_nr);
+ buffer[len] = 0;
+ Error(ERR_NETWORK_CLIENT, "client %d calls itself \"%s\"",
+ buffer[0], &buffer[2]);
+ strncpy(player->name, (char *)&buffer[2], MAX_PLAYER_NAME_LEN);
+}
- printf("OP_NRWANTED: %d\n", buf[0]);
+static void Handle_OP_PLAYER_CONNECTED()
+{
+ struct NetworkClientPlayerInfo *player, *last_player = NULL;
+ int new_client_nr = (int)buffer[0];
+ int new_index_nr = new_client_nr - 1;
- if (new_client_nr != client_nr_wanted)
- {
- char *color[] = { "yellow", "red", "green", "blue" };
+ printf("OP_PLAYER_CONNECTED: %d\n", new_client_nr);
+ Error(ERR_NETWORK_CLIENT, "new client %d connected", new_client_nr);
- sprintf(msgbuf, "Sorry ! You are %s player !",
- color[new_index_nr]);
- Request(msgbuf, REQ_CONFIRM);
+ for (player = &first_player; player; player = player->next)
+ {
+ if (player->nr == new_client_nr)
+ Error(ERR_EXIT, "multiplayer server sent duplicate player id");
- sprintf(msgbuf, "cannot switch -- you keep client # %d",
- new_client_nr);
- sysmsg(msgbuf);
- }
- else
- {
- if (me.nr != client_nr_wanted)
- sprintf(msgbuf, "switching to client # %d", new_client_nr);
- else
- sprintf(msgbuf, "keeping client # %d", new_client_nr);
- sysmsg(msgbuf);
+ last_player = player;
+ }
- me.nr = new_client_nr;
+ last_player->next = player =
+ checked_malloc(sizeof(struct NetworkClientPlayerInfo));
+ player->nr = new_client_nr;
+ player->name[0] = '\0';
+ player->next = NULL;
- stored_player[new_index_nr] = *local_player;
- local_player = &stored_player[new_index_nr];
+ stored_player[new_index_nr].connected = TRUE;
+}
- TestPlayer = new_index_nr;
- }
+static void Handle_OP_PLAYER_DISCONNECTED()
+{
+ struct NetworkClientPlayerInfo *player, *player_disconnected;
+ int player_nr = (int)buffer[0];
+
+ printf("OP_PLAYER_DISCONNECTED: %d\n", player_nr);
+ player_disconnected = getNetworkPlayer(player_nr);
+ Error(ERR_NETWORK_CLIENT, "client %d (%s) disconnected",
+ player_nr, getNetworkPlayerName(buffer[0]));
+
+ for (player = &first_player; player; player = player->next)
+ if (player->next == player_disconnected)
+ player->next = player_disconnected->next;
+ free(player_disconnected);
+}
- break;
- }
-
- case OP_NEW:
- printf("OP_NEW: %d\n", buf[0]);
- sprintf(msgbuf, "new client %d connected", buf[0]);
- sysmsg(msgbuf);
-
- for (u = &me; u; u = u->next)
- {
- if (u->nr == buf[0])
- Error(ERR_EXIT, "multiplayer server sent duplicate player id");
- else
- v = u;
- }
-
- v->next = u = mmalloc(sizeof(struct user));
- u->nr = buf[0];
- u->name[0] = '\0';
- u->next = NULL;
+static void Handle_OP_START_PLAYING()
+{
+ LevelDirTree *new_leveldir;
+ int new_level_nr;
+ unsigned int new_random_seed;
+ char *new_leveldir_identifier;
+
+ new_level_nr = (buffer[2] << 8) + buffer[3];
+ new_random_seed =
+ (buffer[6] << 24) | (buffer[7] << 16) | (buffer[8] << 8) | (buffer[9]);
+ new_leveldir_identifier = (char *)&buffer[10];
+
+ new_leveldir = getTreeInfoFromIdentifier(leveldir_first,
+ new_leveldir_identifier);
+ if (new_leveldir == NULL)
+ {
+ Error(ERR_WARN, "no such level identifier: '%s'", new_leveldir_identifier);
- break;
+ new_leveldir = leveldir_first;
+ Error(ERR_WARN, "using default level set: '%s'", new_leveldir->identifier);
+ }
- case OP_NICK:
- printf("OP_NICK: %d\n", buf[0]);
- u = finduser(buf[0]);
- buf[len] = 0;
- sprintf(msgbuf, "client %d calls itself \"%s\"", buf[0], &buf[2]);
- sysmsg(msgbuf);
- strncpy(u->name, &buf[2], MAXNICKLEN);
- break;
-
- case OP_GONE:
- printf("OP_GONE: %d\n", buf[0]);
- u = finduser(buf[0]);
- sprintf(msgbuf, "client %d (%s) disconnected",
- buf[0], get_user_name(buf[0]));
- sysmsg(msgbuf);
-
- for (v = &me; v; v = v->next)
- if (v->next == u)
- v->next = u->next;
- free(u);
+ printf("OP_START_PLAYING: %d\n", buffer[0]);
+ Error(ERR_NETWORK_CLIENT,
+ "client %d starts game [level %d from level identifier '%s']\n",
+ buffer[0], new_level_nr, new_leveldir->identifier);
- break;
+ leveldir_current = new_leveldir;
+ level_nr = new_level_nr;
- case OP_BADVERS:
- Error(ERR_RETURN, "protocol version mismatch");
- Error(ERR_EXIT, "server expects %d.%d.x instead of %d.%d.%d",
- buf[2], buf[3], PROT_VERS_1, PROT_VERS_2, PROT_VERS_3);
- break;
+ TapeErase();
+ LoadTape(level_nr);
+ LoadLevel(level_nr);
- case OP_PLAY:
- {
- int new_level_nr, new_leveldir_nr;
- unsigned long new_random_seed;
- unsigned char *new_leveldir_name;
+ StartGameActions(FALSE, setup.autorecord, new_random_seed);
+}
- if (game_status == PLAYING)
- break;
+static void Handle_OP_PAUSE_PLAYING()
+{
+ printf("OP_PAUSE_PLAYING: %d\n", buffer[0]);
+ Error(ERR_NETWORK_CLIENT, "client %d pauses game", buffer[0]);
- new_level_nr = (buf[2] << 8) + buf[3];
- new_leveldir_nr = (buf[4] << 8) + buf[5];
- new_random_seed =
- (buf[6] << 24) | (buf[7] << 16) | (buf[8] << 8) | (buf[9]);
- new_leveldir_name = &buf[10];
+ tape.pausing = TRUE;
+ DrawVideoDisplay(VIDEO_STATE_PAUSE_ON,0);
+}
- printf("OP_PLAY: %d\n", buf[0]);
- sprintf(msgbuf, "client %d starts game [level %d from levedir %d (%s)]\n",
- buf[0],
- new_level_nr,
- new_leveldir_nr,
- new_leveldir_name);
- sysmsg(msgbuf);
+static void Handle_OP_CONTINUE_PLAYING()
+{
+ printf("OP_CONTINUE_PLAYING: %d\n", buffer[0]);
+ Error(ERR_NETWORK_CLIENT, "client %d continues game", buffer[0]);
+ tape.pausing = FALSE;
+ DrawVideoDisplay(VIDEO_STATE_PAUSE_OFF,0);
+}
- if (strcmp(leveldir[new_leveldir_nr].name, new_leveldir_name) != 0)
- Error(ERR_RETURN, "no such level directory: '%s'",new_leveldir_name);
+static void Handle_OP_STOP_PLAYING()
+{
+ printf("OP_STOP_PLAYING: %d [%d]\n", buffer[0], buffer[2]);
+ Error(ERR_NETWORK_CLIENT, "client %d stops game [%d]", buffer[0], buffer[2]);
- leveldir_nr = new_leveldir_nr;
+ if (game_status == GAME_MODE_PLAYING)
+ {
+ if (buffer[2] == NETWORK_STOP_BY_PLAYER)
+ Request("Network game stopped by player!", REQ_CONFIRM);
+ else if (buffer[2] == NETWORK_STOP_BY_ERROR)
+ Request("Network game stopped due to internal error!", REQ_CONFIRM);
+ else
+ Request("Network game stopped!", REQ_CONFIRM);
+ }
- local_player->leveldir_nr = leveldir_nr;
- LoadPlayerInfo(PLAYER_LEVEL);
- SavePlayerInfo(PLAYER_SETUP);
+ SetGameStatus(GAME_MODE_MAIN);
- level_nr = new_level_nr;
+ DrawMainMenu();
+}
- TapeErase();
- LoadLevelTape(level_nr);
+static void Handle_OP_MOVE_PLAYER(unsigned int len)
+{
+ int server_frame_counter;
+ int i;
- GetPlayerConfig();
- LoadLevel(level_nr);
+ if (!network_playing)
+ return;
- /*
- if (autorecord_on)
- TapeStartRecording();
- */
+ server_frame_counter =
+ (buffer[2] << 24) | (buffer[3] << 16) | (buffer[4] << 8) | (buffer[5]);
- if (tape.recording)
- {
- tape.random_seed = new_random_seed;
- InitRND(tape.random_seed);
- }
+ if (server_frame_counter != FrameCounter)
+ {
+ Error(ERR_INFO, "client and servers frame counters out of sync");
+ Error(ERR_INFO, "frame counter of client is %d", FrameCounter);
+ Error(ERR_INFO, "frame counter of server is %d", server_frame_counter);
+ Error(ERR_INFO, "this should not happen -- please debug");
- /*
- printf("tape.random_seed == %d\n", tape.random_seed);
- */
+ stop_network_game = TRUE;
- game_status = PLAYING;
- InitGame();
+ return;
+ }
- break;
- }
+ /* copy valid player actions */
+ for (i = 0; i < MAX_PLAYERS; i++)
+ stored_player[i].effective_action =
+ (i < len - 6 && stored_player[i].active ? buffer[6 + i] : 0);
- case OP_MOVE:
- {
- int frame_nr;
- int i;
+ network_player_action_received = TRUE;
+}
- frame_nr =
- (buf[2] << 24) | (buf[3] << 16) | (buf[4] << 8) | (buf[5]);
+static void HandleNetworkingMessages()
+{
+ unsigned int message_length;
- if (frame_nr != FrameCounter)
- {
- Error(ERR_RETURN, "client and servers frame counters out of sync");
- Error(ERR_RETURN, "frame counter of client is %d", FrameCounter);
- Error(ERR_RETURN, "frame counter of server is %d", frame_nr);
- Error(ERR_EXIT, "this should not happen -- please debug");
- }
+ stop_network_game = FALSE;
- for (i=0; i<MAX_PLAYERS; i++)
- {
- if (stored_player[i].active)
- network_player_action[i] = buf[6 + i];
- }
+ while (nread >= 4 && nread >= 4 + readbuffer[3])
+ {
+ message_length = readbuffer[3];
+ if (readbuffer[0] || readbuffer[1] || readbuffer[2])
+ Error(ERR_EXIT, "wrong network server line length");
- network_player_action_received = TRUE;
+ memcpy(buffer, &readbuffer[4], message_length);
+ nread -= 4 + message_length;
+ memmove(readbuffer, readbuffer + 4 + message_length, nread);
- sprintf(msgbuf, "frame %d: client %d moves player [0x%02x]",
- FrameCounter, buf[0], buf[2]);
- sysmsg(msgbuf);
+ switch (buffer[1])
+ {
+ case OP_BAD_PROTOCOL_VERSION:
+ Handle_OP_BAD_PROTOCOL_VERSION();
+ break;
+ case OP_YOUR_NUMBER:
+ Handle_OP_YOUR_NUMBER();
break;
- }
- case OP_PAUSE:
- printf("OP_PAUSE: %d\n", buf[0]);
- sprintf(msgbuf, "client %d pauses game", buf[0]);
- sysmsg(msgbuf);
+ case OP_NUMBER_WANTED:
+ Handle_OP_NUMBER_WANTED();
break;
- case OP_CONT:
- printf("OP_CONT: %d\n", buf[0]);
- sprintf(msgbuf, "client %d continues game", buf[0]);
- sysmsg(msgbuf);
+ case OP_PLAYER_NAME:
+ Handle_OP_PLAYER_NAME(message_length);
break;
- case OP_WON:
- printf("OP_WON: %d\n", buf[0]);
- sprintf(msgbuf, "client %d wins the game", buf[0]);
- sysmsg(msgbuf);
+ case OP_PLAYER_CONNECTED:
+ Handle_OP_PLAYER_CONNECTED();
+ break;
+
+ case OP_PLAYER_DISCONNECTED:
+ Handle_OP_PLAYER_DISCONNECTED();
break;
- case OP_ZERO:
- printf("OP_ZERO: %d\n", buf[0]);
- sprintf(msgbuf, "client %d resets game counters", buf[0]);
- sysmsg(msgbuf);
+ case OP_START_PLAYING:
+ Handle_OP_START_PLAYING();
break;
- case OP_MSG:
- printf("OP_MSG: %d\n", buf[0]);
- sprintf(msgbuf, "client %d sends message", buf[0]);
+ case OP_PAUSE_PLAYING:
+ Handle_OP_PAUSE_PLAYING();
break;
-
- case OP_LOST:
- printf("OP_MSG: %d\n", buf[0]);
- sprintf(msgbuf, "client %d has lost", buf[0]);
+
+ case OP_CONTINUE_PLAYING:
+ Handle_OP_CONTINUE_PLAYING();
break;
-
- case OP_LEVEL:
- printf("OP_MSG: %d\n", buf[0]);
- sprintf(msgbuf, "client %d sets level to %d", buf[0], buf[2]);
+
+ case OP_STOP_PLAYING:
+ Handle_OP_STOP_PLAYING();
+ break;
+
+ case OP_MOVE_PLAYER:
+ Handle_OP_MOVE_PLAYER(message_length);
+ break;
+
+ case OP_BROADCAST_MESSAGE:
+ printf("OP_BROADCAST_MESSAGE: %d\n", buffer[0]);
+ Error(ERR_NETWORK_CLIENT, "client %d sends message", buffer[0]);
break;
}
}
fflush(stdout);
+
+ /* in case of internal error, stop network game */
+ if (stop_network_game)
+ SendToServer_StopPlaying(NETWORK_STOP_BY_ERROR);
}
+/* TODO */
+
void HandleNetworking()
{
- static struct timeval tv = { 0, 0 };
- fd_set rfds;
int r = 0;
- if (standalone)
- return;
-
- flushbuf();
-
- FD_ZERO(&rfds);
- FD_SET(sfd, &rfds);
-
- r = select(sfd + 1, &rfds, NULL, NULL, &tv);
-
- if (r < 0 && errno != EINTR)
+ do
{
- perror("select");
- fatal("fatal: select() failed");
- }
+ if ((r = SDLNet_CheckSockets(rfds, 1)) < 0)
+ Error(ERR_EXIT, "HandleNetworking(): SDLNet_CheckSockets() failed");
- if (r < 0)
- FD_ZERO(&rfds);
+ if (r > 0)
+ {
+ r = SDLNet_TCP_Recv(sfd, readbuffer + nread, 1);
- if (FD_ISSET(sfd, &rfds))
- {
- int r;
+ if (r < 0)
+ Error(ERR_EXIT, "error reading from network server");
- r = read(sfd, readbuf + nread, BUFLEN - nread);
+ if (r == 0)
+ Error(ERR_EXIT, "connection to network server lost");
- if (r < 0)
- fatal("Error reading from server");
- if (r == 0)
- fatal("Connection to server lost");
- nread += r;
+ nread += r;
- handlemessages();
+ HandleNetworkingMessages();
+ }
}
+ while (r > 0);
}
+
+#endif /* NETWORK_AVALIABLE */
projects / rocksndiamonds.git / blobdiff