-/***********************************************************
-* 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 <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 "libgame/libgame.h"
#include "network.h"
#include "netserv.h"
+#include "main.h"
#include "game.h"
#include "tape.h"
#include "files.h"
#include "tools.h"
-#include "buttons.h"
#include "screens.h"
-#include "misc.h"
-
-#define MAXNICKLEN 14
+#include "init.h"
-struct user
+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
};
-static char msgbuf[300];
+struct NetworkLevelFileInfo
+{
+ char *leveldir_identifier;
+ struct LevelFileInfo file_info;
+ struct LevelFileInfo tmpl_info;
+ boolean use_network_level_files;
+ boolean use_custom_template;
+};
/* server stuff */
-int sfd;
-unsigned char realbuf[512], readbuf[MAX_BUFFER_SIZE], writbuf[MAX_BUFFER_SIZE];
-unsigned char *buf = realbuf + 4;
-int nread = 0, nwrite = 0;
+static TCPsocket sfd; /* TCP server socket */
+static UDPsocket udp; /* UDP server socket */
+static SDLNet_SocketSet rfds; /* socket set */
-static void sysmsg(char *s)
+static struct NetworkBuffer *read_buffer = NULL;
+static struct NetworkBuffer *write_buffer = NULL;
+
+static boolean stop_network_game = FALSE;
+static boolean stop_network_client = FALSE;
+static char stop_network_client_message[MAX_OUTPUT_LINESIZE + 1];
+
+static struct NetworkLevelFileInfo network_level;
+
+static void DrawNetworkTextExt(char *message, int font_nr, boolean initialize)
{
- if (verbose)
+ static int xpos = 0, ypos = 0;
+ static int max_line_width = 0;
+ int font_width = getFontWidth(font_nr);
+ int font_height = getFontHeight(font_nr);
+ int ypos_1 = 120;
+ int ypos_2 = 150;
+
+ if (initialize)
{
- printf("** %s\n", s);
- fflush(stdout);
+ if (game_status == GAME_MODE_LOADING)
+ {
+ max_line_width = WIN_XSIZE;
+
+ xpos = (max_line_width - getTextWidth(message, font_nr)) / 2;
+ ypos = ypos_1;
+
+ DrawText(xpos, ypos, message, font_nr);
+
+ xpos = 0;
+ ypos = ypos_2;
+ }
+ else
+ {
+ max_line_width = SXSIZE;
+
+ DrawTextSCentered(ypos_1, font_nr, message);
+
+ /* calculate offset to x position caused by rounding */
+ int max_chars_per_line = max_line_width / font_width;
+ int xoffset = (max_line_width - max_chars_per_line * font_width) / 2;
+
+ xpos = SX + xoffset;
+ ypos = SY + ypos_2;
+ }
+
+ Error(ERR_DEBUG, "========== %s ==========", message);
}
-}
+ else
+ {
+ int max_chars_per_line = max_line_width / font_width;
+ int max_lines_per_text = 10;
+ int num_lines_spacing = (font_nr == FC_YELLOW ? 1 : 3);
+ int num_lines_printed = DrawTextBuffer(xpos, ypos, message, font_nr,
+ max_chars_per_line, -1,
+ max_lines_per_text, 0, -1,
+ TRUE, TRUE, FALSE);
-static void *mmalloc(int n)
-{
- void *r;
+ ypos += (num_lines_printed + num_lines_spacing) * font_height;
+
+ Error(ERR_DEBUG, "%s", message);
+ }
- r = malloc(n);
- if (r == NULL)
- fatal("Out of memory");
- return r;
+ BackToFront();
}
-static void u_sleep(int i)
+static void DrawNetworkText(char *message)
{
- struct timeval tm;
- tm.tv_sec = i / 1000000;
- tm.tv_usec = i % 1000000;
- select(0, NULL, NULL, NULL, &tm);
+ DrawNetworkTextExt(message, FC_YELLOW, FALSE);
}
-static void flushbuf()
+static void DrawNetworkText_Success(char *message)
{
- if (nwrite)
- {
- write(sfd, writbuf, nwrite);
- nwrite = 0;
- }
+ DrawNetworkTextExt(message, FC_GREEN, FALSE);
}
-static void sendbuf(int len)
+static void DrawNetworkText_Failed(char *message)
{
- if (!standalone)
- {
- realbuf[0] = realbuf[1] = realbuf[2] = 0;
- realbuf[3] = (unsigned char)len;
- buf[0] = 0;
- if (nwrite + 4 + len >= MAX_BUFFER_SIZE)
- fatal("Internal error: send buffer overflow");
- memcpy(writbuf + nwrite, realbuf, 4 + len);
- nwrite += 4 + len;
+ DrawNetworkTextExt(message, FC_RED, FALSE);
+}
+static void DrawNetworkText_Title(char *message)
+{
+ DrawNetworkTextExt(message, FC_GREEN, TRUE);
+}
- flushbuf();
+static void SendNetworkBufferToServer(struct NetworkBuffer *nb)
+{
+ if (!network.enabled)
+ return;
+ /* set message length header */
+ putNetwork32BitInteger(nb->buffer, nb->size - 4);
- }
+ /* directly send the buffer to the network server */
+ SDLNet_TCP_Send(sfd, nb->buffer, nb->size);
}
-struct user *finduser(unsigned char c)
+struct NetworkClientPlayerInfo *getNetworkPlayer(int player_nr)
{
- struct user *u;
+ struct NetworkClientPlayerInfo *player = NULL;
+
+ for (player = &first_player; player; player = player->next)
+ if (player->nr == player_nr)
+ break;
- 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 */
+ if (player == NULL) /* should not happen */
+ Error(ERR_EXIT, "protocol error: reference to non-existing player %d",
+ player_nr);
+
+ 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);
}
static void StartNetworkServer(int port)
{
- switch (fork())
- {
- case 0:
- NetworkServer(port, serveronly);
+ static int p;
+
+ p = port;
+#if defined(TARGET_SDL2)
+ server_thread = SDL_CreateThread(NetworkServerThread,
+ "NetworkServerThread", &p);
+#else
+ server_thread = SDL_CreateThread(NetworkServerThread, &p);
+#endif
+ network_server = TRUE;
+}
- /* never reached */
- exit(0);
+boolean ConnectToServer(char *hostname, int port)
+{
+ IPaddress ip;
+ int server_host = 0;
+ int i;
- case -1:
- Error(ERR_RETURN,
- "cannot create network server process - no network games");
- standalone = TRUE;
- return;
+ if (read_buffer == NULL)
+ read_buffer = newNetworkBuffer();
- default:
- /* we are parent process -- resume normal operation */
- return;
- }
-}
+ if (write_buffer == NULL)
+ write_buffer = newNetworkBuffer();
-BOOL ConnectToServer(char *host, int port)
-{
- struct hostent *hp;
- struct sockaddr_in s;
- struct protoent *tcpproto;
- int on = 1, i;
+ DrawNetworkText_Title("Initializing Network");
+
+ if (port == 0)
+ port = DEFAULT_SERVER_PORT;
- if (host)
+ if (hostname == NULL)
{
- if ((s.sin_addr.s_addr = inet_addr(host)) == -1)
+ // if no hostname given, try to auto-detect network server in local network
+ // by doing a UDP broadcast on the network server port and wait for answer
+
+ SDLNet_SocketSet udp_socket_set = SDLNet_AllocSocketSet(1);
+ if (!udp_socket_set)
+ Error(ERR_EXIT, "SDLNet_AllocSocketSet() failed: %s"), SDLNet_GetError();
+
+ udp = SDLNet_UDP_Open(0);
+ if(!udp)
+ Error(ERR_EXIT, "SDLNet_UDP_Open() failed: %s", SDLNet_GetError());
+
+ if (SDLNet_UDP_AddSocket(udp_socket_set, udp) == -1)
+ Error(ERR_EXIT_NETWORK_SERVER, "SDLNet_TCP_AddSocket() failed: %s"),
+ SDLNet_GetError();
+
+ char *data_ptr = "network server UDB broadcast";
+ int data_len = strlen(data_ptr) + 1;
+ IPaddress ip_address;
+
+ SDLNet_Write32(0xffffffff, &ip_address.host); /* 255.255.255.255 */
+ SDLNet_Write16(port, &ip_address.port);
+
+ UDPpacket packet =
{
- hp = gethostbyname(host);
- if (!hp)
- fatal("Host not found");
- s.sin_addr = *(struct in_addr *)(hp->h_addr_list[0]);
- }
- }
- else
- s.sin_addr.s_addr = inet_addr("127.0.0.1");
+ -1,
+ (Uint8 *)data_ptr,
+ data_len,
+ data_len,
+ 0,
+ ip_address
+ };
- if (port == 0)
- port = DEFAULTPORT;
+ SDLNet_UDP_Send(udp, -1, &packet);
- 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));
+ DrawNetworkText("Looking for local network server ...");
- if (connect(sfd, (struct sockaddr *)&s, sizeof(s)) < 0)
- {
- if (!host)
+ /* wait for any local network server to answer UDP broadcast */
+ for (i = 0; i < 5; i++)
{
- printf("No rocksndiamonds server on localhost - starting up one ...\n");
+ if (SDLNet_CheckSockets(udp_socket_set, 0) == 1)
+ {
+ int num_packets = SDLNet_UDP_Recv(udp, &packet);
+
+ if (num_packets == 1)
+ {
+ DrawNetworkText_Success("Network server found!");
- StartNetworkServer(port);
+ server_host = SDLNet_Read32(&packet.address.host);
+ }
+ else
+ {
+ DrawNetworkText_Failed("No answer from network server!");
+ }
- for (i=0; i<6; i++)
+ break;
+ }
+ else
{
- 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;
+ Delay_WithScreenUpdates(100);
}
- if (i==6)
- fatal("Can't connect to server");
}
+
+ if (server_host == 0)
+ DrawNetworkText_Failed("No network server found!");
+ }
+
+ rfds = SDLNet_AllocSocketSet(1);
+
+ if (hostname)
+ {
+ SDLNet_ResolveHost(&ip, hostname, port);
+
+ if (ip.host == INADDR_NONE)
+ Error(ERR_EXIT, "cannot locate host '%s'", hostname);
else
- fatal("Can't connect to server");
+ server_host = SDLNet_Read32(&ip.host);
+
+ DrawNetworkText("Connecting to remote host ...");
}
+ else
+ {
+ // if no hostname was given and no network server was auto-detected in the
+ // local network, try to connect to a network server at the local host
+ if (server_host == 0)
+ server_host = 0x7f000001; /* 127.0.0.1 */
+
+ SDLNet_Write32(server_host, &ip.host);
+ SDLNet_Write16(port, &ip.port);
+
+ DrawNetworkText("Connecting to local host ...");
+ }
+
+ Error(ERR_DEBUG, "trying to connect to network server at %d.%d.%d.%d ...",
+ (server_host >> 24) & 0xff,
+ (server_host >> 16) & 0xff,
+ (server_host >> 8) & 0xff,
+ (server_host >> 0) & 0xff);
+
+ sfd = SDLNet_TCP_Open(&ip);
+
+ if (sfd)
+ {
+ SDLNet_TCP_AddSocket(rfds, sfd);
+
+ DrawNetworkText_Success("Successfully connected!");
+
+ return TRUE;
+ }
+ else
+ {
+ DrawNetworkText_Failed("Failed to connect to network server!");
- return(TRUE);
+ printf("SDLNet_TCP_Open(): %s\n", SDLNet_GetError());
+ }
+
+ if (hostname) /* connect to specified server failed */
+ return FALSE;
+
+ DrawNetworkText("Starting new local network server ...");
+
+ StartNetworkServer(port);
+
+ /* wait for server to start up and try connecting several times */
+ for (i = 0; i < 30; i++)
+ {
+ if ((sfd = SDLNet_TCP_Open(&ip))) /* connected */
+ {
+ DrawNetworkText_Success("Successfully connected!");
+
+ SDLNet_TCP_AddSocket(rfds, sfd);
+ return TRUE;
+ }
+
+ Delay_WithScreenUpdates(100);
+ }
+
+ DrawNetworkText_Failed("Failed to connect to network server!");
+
+ /* 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];
+ initNetworkBufferForWriting(write_buffer, OP_PLAYER_NAME, 0);
+
+ putNetworkBufferString(write_buffer, player_name);
- buf[1] = OP_NICKNAME;
- memcpy(&buf[2], nickname, strlen(nickname));
- sendbuf(2 + strlen(nickname));
- sprintf(msgbuf, "you set your nick to \"%s\"", nickname);
- sysmsg(msgbuf);
+ SendNetworkBufferToServer(write_buffer);
+
+ Error(ERR_NETWORK_CLIENT, "you set your player name to \"%s\"", player_name);
}
void SendToServer_ProtocolVersion()
{
- buf[1] = OP_PROTOCOL_VERSION;
- buf[2] = PROT_VERS_1;
- buf[3] = PROT_VERS_2;
- buf[4] = PROT_VERS_3;
+ initNetworkBufferForWriting(write_buffer, OP_PROTOCOL_VERSION, 0);
+
+ putNetworkBuffer8BitInteger(write_buffer, PROTOCOL_VERSION_MAJOR);
+ putNetworkBuffer8BitInteger(write_buffer, PROTOCOL_VERSION_MINOR);
+ putNetworkBuffer8BitInteger(write_buffer, PROTOCOL_VERSION_PATCH);
- sendbuf(5);
+ SendNetworkBufferToServer(write_buffer);
}
void SendToServer_NrWanted(int nr_wanted)
{
- buf[1] = OP_NUMBER_WANTED;
- buf[2] = nr_wanted;
+ initNetworkBufferForWriting(write_buffer, OP_NUMBER_WANTED, 0);
- sendbuf(3);
+ putNetworkBuffer8BitInteger(write_buffer, nr_wanted);
+
+ SendNetworkBufferToServer(write_buffer);
}
-void SendToServer_StartPlaying()
+void SendToServer_LevelFile()
{
- unsigned long new_random_seed = InitRND(NEW_RANDOMIZE);
+ initNetworkBufferForWriting(write_buffer, OP_LEVEL_FILE, 0);
+
+ putNetworkBufferString( write_buffer, leveldir_current->identifier);
+ putNetworkBuffer16BitInteger(write_buffer, level.file_info.nr);
+ putNetworkBuffer8BitInteger( write_buffer, level.file_info.type);
+ putNetworkBuffer8BitInteger( write_buffer, level.file_info.packed);
+ putNetworkBufferString( write_buffer, level.file_info.basename);
+ putNetworkBufferFile( write_buffer, level.file_info.filename);
+ putNetworkBuffer8BitInteger( write_buffer, level.use_custom_template);
- buf[1] = OP_START_PLAYING;
- buf[2] = (byte)(level_nr >> 8);
- buf[3] = (byte)(level_nr & 0xff);
- buf[4] = (byte)(leveldir_nr >> 8);
- buf[5] = (byte)(leveldir_nr & 0xff);
+ if (level.use_custom_template)
+ {
+ putNetworkBufferString(write_buffer, level_template.file_info.basename);
+ putNetworkBufferFile( write_buffer, level_template.file_info.filename);
+ }
- 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);
+ SendNetworkBufferToServer(write_buffer);
- strcpy(&buf[10], leveldir[leveldir_nr].name);
+ setString(&network_level.leveldir_identifier, leveldir_current->identifier);
- sendbuf(10 + strlen(leveldir[leveldir_nr].name)+1);
+ /* the sending client does not use network level files (but the real ones) */
+ network_level.use_network_level_files = FALSE;
+
+#if 0
+ printf("::: '%s'\n", leveldir_current->identifier);
+ printf("::: '%d'\n", level.file_info.nr);
+ printf("::: '%d'\n", level.file_info.type);
+ printf("::: '%d'\n", level.file_info.packed);
+ printf("::: '%s'\n", level.file_info.basename);
+ printf("::: '%s'\n", level.file_info.filename);
+
+ if (level.use_custom_template)
+ printf("::: '%s'\n", level_template.file_info.filename);
+#endif
+}
+
+void SendToServer_StartPlaying()
+{
+ unsigned int new_random_seed = InitRND(level.random_seed);
+
+ initNetworkBufferForWriting(write_buffer, OP_START_PLAYING, 0);
+
+ putNetworkBufferString( write_buffer, leveldir_current->identifier);
+ putNetworkBuffer16BitInteger(write_buffer, level_nr);
+ putNetworkBuffer32BitInteger(write_buffer, new_random_seed);
+
+ SendNetworkBufferToServer(write_buffer);
}
void SendToServer_PausePlaying()
{
- buf[1] = OP_PAUSE_PLAYING;
+ initNetworkBufferForWriting(write_buffer, OP_PAUSE_PLAYING, 0);
- sendbuf(2);
+ SendNetworkBufferToServer(write_buffer);
}
void SendToServer_ContinuePlaying()
{
- buf[1] = OP_CONTINUE_PLAYING;
+ initNetworkBufferForWriting(write_buffer, OP_CONTINUE_PLAYING, 0);
- sendbuf(2);
+ SendNetworkBufferToServer(write_buffer);
}
-void SendToServer_StopPlaying()
+void SendToServer_StopPlaying(int cause_for_stopping)
{
- buf[1] = OP_STOP_PLAYING;
+ initNetworkBufferForWriting(write_buffer, OP_STOP_PLAYING, 0);
+
+ putNetworkBuffer8BitInteger(write_buffer, cause_for_stopping);
- sendbuf(2);
+ SendNetworkBufferToServer(write_buffer);
}
void SendToServer_MovePlayer(byte player_action)
{
- buf[1] = OP_MOVE_FIGURE;
- buf[2] = player_action;
+ initNetworkBufferForWriting(write_buffer, OP_MOVE_PLAYER, 0);
- sendbuf(3);
+ putNetworkBuffer8BitInteger(write_buffer, player_action);
+
+ SendNetworkBufferToServer(write_buffer);
}
static void Handle_OP_BAD_PROTOCOL_VERSION()
{
- 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);
+ int protocol_version_major = getNetworkBuffer8BitInteger(read_buffer);
+ int protocol_version_minor = getNetworkBuffer8BitInteger(read_buffer);
+
+ Error(ERR_WARN, "protocol version mismatch");
+ Error(ERR_WARN, "server expects %d.%d.x instead of %d.%d.%d",
+ protocol_version_major,
+ protocol_version_minor,
+ PROTOCOL_VERSION_MAJOR,
+ PROTOCOL_VERSION_MINOR,
+ PROTOCOL_VERSION_PATCH);
+
+ sprintf(stop_network_client_message, "Network protocol version mismatch! Server expects version %d.%d.x instead of %d.%d.%d!",
+ protocol_version_major,
+ protocol_version_minor,
+ PROTOCOL_VERSION_MAJOR,
+ PROTOCOL_VERSION_MINOR,
+ PROTOCOL_VERSION_PATCH);
+
+ stop_network_client = TRUE;
}
static void Handle_OP_YOUR_NUMBER()
{
- int new_client_nr = buf[2];
+ int old_client_nr = getNetworkBuffer8BitInteger(read_buffer);
+ int new_client_nr = getNetworkBuffer8BitInteger(read_buffer);
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];
- printf("OP_YOUR_NUMBER: %d\n", buf[0]);
- me.nr = new_client_nr;
+ printf("OP_YOUR_NUMBER: %d\n", old_client_nr);
+ first_player.nr = new_client_nr;
- stored_player[new_index_nr] = *local_player;
- local_player = &stored_player[new_index_nr];
+ if (old_local_player != new_local_player)
+ {
+ /* set relevant player settings and change to new player */
- TestPlayer = new_index_nr;
+ local_player = new_local_player;
- if (me.nr > MAX_PLAYERS)
- Error(ERR_EXIT, "sorry - no more than %d players", MAX_PLAYERS);
+ old_local_player->connected_locally = FALSE;
+ new_local_player->connected_locally = TRUE;
- sprintf(msgbuf, "you get client # %d", new_client_nr);
- sysmsg(msgbuf);
+ old_local_player->connected_network = FALSE;
+ new_local_player->connected_network = TRUE;
+ }
+
+ if (first_player.nr > MAX_PLAYERS)
+ Error(ERR_EXIT, "sorry, more than %d players not allowed", MAX_PLAYERS);
+
+ Error(ERR_NETWORK_CLIENT, "you get client # %d", new_client_nr);
+
+ stored_player[new_index_nr].connected_network = TRUE;
}
static void Handle_OP_NUMBER_WANTED()
{
- int client_nr_wanted = buf[2];
- int new_client_nr = buf[3];
+ int old_client_nr = getNetworkBuffer8BitInteger(read_buffer);
+ int client_nr_wanted = getNetworkBuffer8BitInteger(read_buffer);
+ int new_client_nr = getNetworkBuffer8BitInteger(read_buffer);
+ 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", buf[0]);
+ printf("OP_NUMBER_WANTED: %d\n", old_client_nr);
- if (new_client_nr != client_nr_wanted)
+ if (new_client_nr == client_nr_wanted) /* switching succeeded */
{
- char *color[] = { "yellow", "red", "green", "blue" };
+ 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)
+ {
+ /* set relevant player settings and change to new player */
+
+ old_player->connected_network = FALSE;
+ new_player->connected_network = TRUE;
+ }
+
+ player = getNetworkPlayer(old_client_nr);
+ player->nr = new_client_nr;
- sprintf(msgbuf, "Sorry ! You are %s player !",
- color[new_index_nr]);
- Request(msgbuf, REQ_CONFIRM);
+ if (old_player == local_player) /* local player switched */
+ {
+ local_player = new_player;
- sprintf(msgbuf, "cannot switch -- you keep client # %d",
- new_client_nr);
- sysmsg(msgbuf);
+ old_player->connected_locally = FALSE;
+ new_player->connected_locally = TRUE;
+ }
}
- else
+ else if (old_client_nr == first_player.nr) /* failed -- local player? */
{
- 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);
+ char request[100];
- me.nr = new_client_nr;
+ sprintf(request, "Sorry! Player %d already exists! You are player %d!",
+ index_nr_wanted + 1, new_index_nr + 1);
- stored_player[new_index_nr] = *local_player;
- local_player = &stored_player[new_index_nr];
+ Request(request, REQ_CONFIRM);
- TestPlayer = new_index_nr;
+ Error(ERR_NETWORK_CLIENT, "cannot switch -- you keep client # %d",
+ new_client_nr);
}
+
+ if (game_status == GAME_MODE_MAIN)
+ DrawNetworkPlayers();
}
-static void Handle_OP_NICKNAME(unsigned int len)
+static void Handle_OP_PLAYER_NAME()
{
- struct user *u;
+ int player_nr = getNetworkBuffer8BitInteger(read_buffer);
+ char *player_name = getNetworkBufferString(read_buffer);
+ struct NetworkClientPlayerInfo *player = getNetworkPlayer(player_nr);
+
+ printf("OP_PLAYER_NAME: %d\n", player_nr);
- printf("OP_NICKNAME: %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);
+ strncpy(player->name, player_name, MAX_PLAYER_NAME_LEN);
+ player->name[MAX_PLAYER_NAME_LEN] = '\0';
+
+ Error(ERR_NETWORK_CLIENT, "client %d calls itself \"%s\"",
+ player_nr, player->name);
}
static void Handle_OP_PLAYER_CONNECTED()
{
- struct user *u, *v = NULL;
+ struct NetworkClientPlayerInfo *player, *last_player = NULL;
+ int new_client_nr = getNetworkBuffer8BitInteger(read_buffer);
+ int new_index_nr = new_client_nr - 1;
- printf("OP_PLAYER_CONNECTED: %d\n", buf[0]);
- sprintf(msgbuf, "new client %d connected", buf[0]);
- sysmsg(msgbuf);
+ printf("OP_PLAYER_CONNECTED: %d\n", new_client_nr);
+ Error(ERR_NETWORK_CLIENT, "new client %d connected", new_client_nr);
- for (u = &me; u; u = u->next)
+ for (player = &first_player; player; player = player->next)
{
- if (u->nr == buf[0])
+ if (player->nr == new_client_nr)
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_PLAYER_DISCONNECTED()
-{
- struct user *u, *v;
+ last_player = player;
+ }
- printf("OP_PLAYER_DISCONNECTED: %d\n", buf[0]);
- u = finduser(buf[0]);
- sprintf(msgbuf, "client %d (%s) disconnected",
- buf[0], get_user_name(buf[0]));
- sysmsg(msgbuf);
+ last_player->next = player =
+ checked_malloc(sizeof(struct NetworkClientPlayerInfo));
+ player->nr = new_client_nr;
+ player->name[0] = '\0';
+ player->next = NULL;
- for (v = &me; v; v = v->next)
- if (v->next == u)
- v->next = u->next;
- free(u);
+ stored_player[new_index_nr].connected_network = TRUE;
}
-static void Handle_OP_START_PLAYING()
+static void Handle_OP_PLAYER_DISCONNECTED()
{
- int new_level_nr, new_leveldir_nr;
- unsigned long new_random_seed;
- unsigned char *new_leveldir_name;
+ struct NetworkClientPlayerInfo *player, *player_disconnected;
+ int player_nr = getNetworkBuffer8BitInteger(read_buffer);
+ int index_nr = player_nr - 1;
- /*
- if (game_status == PLAYING)
- break;
- */
+ printf("OP_PLAYER_DISCONNECTED: %d\n", player_nr);
+ player_disconnected = getNetworkPlayer(player_nr);
+ Error(ERR_NETWORK_CLIENT, "client %d (%s) disconnected",
+ player_nr, getNetworkPlayerName(player_nr));
- 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];
+ for (player = &first_player; player; player = player->next)
+ if (player->next == player_disconnected)
+ player->next = player_disconnected->next;
+ free(player_disconnected);
- printf("OP_START_PLAYING: %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);
+ stored_player[index_nr].connected_locally = FALSE;
+ stored_player[index_nr].connected_network = FALSE;
+ if (game_status == GAME_MODE_PLAYING)
+ {
+ char message[100];
- if (strcmp(leveldir[new_leveldir_nr].name, new_leveldir_name) != 0)
- Error(ERR_RETURN, "no such level directory: '%s'",new_leveldir_name);
-
- leveldir_nr = new_leveldir_nr;
+ sprintf(message, "Player %d left network server! Network game stopped!",
+ player_nr);
- local_player->leveldir_nr = leveldir_nr;
- LoadPlayerInfo(PLAYER_LEVEL);
- SavePlayerInfo(PLAYER_SETUP);
+ Request(message, REQ_CONFIRM | REQ_STAY_CLOSED);
- level_nr = new_level_nr;
+ SetGameStatus(GAME_MODE_MAIN);
- TapeErase();
- LoadLevelTape(level_nr);
+ DrawMainMenu();
+ }
+ else if (game_status == GAME_MODE_MAIN)
+ {
+ DrawNetworkPlayers();
+ }
+}
- GetPlayerConfig();
- LoadLevel(level_nr);
+static void Handle_OP_START_PLAYING()
+{
+ int player_nr = getNetworkBuffer8BitInteger(read_buffer);
+ char *new_leveldir_identifier = getNetworkBufferString(read_buffer);
+ int new_level_nr = getNetworkBuffer16BitInteger(read_buffer);
+ unsigned int new_random_seed = getNetworkBuffer32BitInteger(read_buffer);
+ if (!strEqual(new_leveldir_identifier, network_level.leveldir_identifier))
+ {
+ Error(ERR_WARN, "no such level identifier: '%s'", new_leveldir_identifier);
+ stop_network_game = TRUE;
- if (autorecord_on)
- TapeStartRecording();
+ return;
+ }
+ printf("OP_START_PLAYING: %d\n", player_nr);
+ Error(ERR_NETWORK_CLIENT,
+ "client %d starts game [level %d from level identifier '%s']\n",
+ player_nr, new_level_nr, new_leveldir_identifier);
+ LevelDirTree *new_leveldir =
+ getTreeInfoFromIdentifier(leveldir_first, new_leveldir_identifier);
- if (tape.recording)
- tape.random_seed = new_random_seed;
+ if (new_leveldir != NULL)
+ {
+ leveldir_current = new_leveldir;
+ level_nr = new_level_nr;
+ }
- InitRND(new_random_seed);
+ /* needed if level set of network game changed graphics, sounds or music */
+ ReloadCustomArtwork(0);
+ TapeErase();
- /*
- printf("tape.random_seed == %d\n", tape.random_seed);
- */
+ if (network_level.use_network_level_files)
+ LoadLevelFromNetwork(&network_level.file_info,
+ &network_level.tmpl_info);
+ else
+ LoadLevel(level_nr);
- game_status = PLAYING;
- InitGame();
+ StartGameActions(FALSE, setup.autorecord, new_random_seed);
}
static void Handle_OP_PAUSE_PLAYING()
{
- printf("OP_PAUSE_PLAYING: %d\n", buf[0]);
- sprintf(msgbuf, "client %d pauses game", buf[0]);
- sysmsg(msgbuf);
+ int player_nr = getNetworkBuffer8BitInteger(read_buffer);
- tape.pausing = TRUE;
- DrawVideoDisplay(VIDEO_STATE_PAUSE_ON,0);
+ printf("OP_PAUSE_PLAYING: %d\n", player_nr);
+ Error(ERR_NETWORK_CLIENT, "client %d pauses game", player_nr);
+
+ if (game_status == GAME_MODE_PLAYING)
+ {
+ tape.pausing = TRUE;
+ DrawVideoDisplay(VIDEO_STATE_PAUSE_ON, 0);
+ }
}
static void Handle_OP_CONTINUE_PLAYING()
{
- printf("OP_CONTINUE_PLAYING: %d\n", buf[0]);
- sprintf(msgbuf, "client %d continues game", buf[0]);
- sysmsg(msgbuf);
+ int player_nr = getNetworkBuffer8BitInteger(read_buffer);
+
+ printf("OP_CONTINUE_PLAYING: %d\n", player_nr);
+ Error(ERR_NETWORK_CLIENT, "client %d continues game", player_nr);
- tape.pausing = FALSE;
- DrawVideoDisplay(VIDEO_STATE_PAUSE_OFF,0);
+ if (game_status == GAME_MODE_PLAYING)
+ {
+ tape.pausing = FALSE;
+ DrawVideoDisplay(VIDEO_STATE_PAUSE_OFF, 0);
+ }
}
static void Handle_OP_STOP_PLAYING()
{
- printf("OP_STOP_PLAYING: %d\n", buf[0]);
- sprintf(msgbuf, "client %d stops game", buf[0]);
- sysmsg(msgbuf);
+ int client_nr = getNetworkBuffer8BitInteger(read_buffer);
+ int cause_for_stopping = getNetworkBuffer8BitInteger(read_buffer);
+
+ printf("OP_STOP_PLAYING: %d [%d]\n", client_nr, cause_for_stopping);
+ Error(ERR_NETWORK_CLIENT, "client %d stops game [%d]",
+ client_nr, cause_for_stopping);
+
+ if (game_status == GAME_MODE_PLAYING)
+ {
+ int index_nr = client_nr - 1;
+ struct PlayerInfo *client_player = &stored_player[index_nr];
+ boolean stopped_by_remote_player = (!client_player->connected_locally);
+ char message[100];
+
+ sprintf(message, (cause_for_stopping == NETWORK_STOP_BY_PLAYER ?
+ "Network game stopped by player %d!" :
+ cause_for_stopping == NETWORK_STOP_BY_ERROR ?
+ "Network game stopped due to internal error!" :
+ "Network game stopped!"), client_nr);
+
+ if (cause_for_stopping != NETWORK_STOP_BY_PLAYER ||
+ stopped_by_remote_player)
+ Request(message, REQ_CONFIRM | REQ_STAY_CLOSED);
+
+ SetGameStatus(GAME_MODE_MAIN);
+
+ DrawMainMenu();
+ }
}
-static void Handle_OP_MOVE_FIGURE()
+static void Handle_OP_MOVE_PLAYER()
{
- int frame_nr;
+ int player_nr = getNetworkBuffer8BitInteger(read_buffer);
+ int server_frame_counter = getNetworkBuffer32BitInteger(read_buffer);
int i;
- frame_nr =
- (buf[2] << 24) | (buf[3] << 16) | (buf[4] << 8) | (buf[5]);
+ if (!network_playing)
+ return;
- if (frame_nr != FrameCounter)
+ if (server_frame_counter != 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");
- }
+ Error(ERR_INFO, "frame counters of client %d and server out of sync",
+ player_nr);
+ 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");
- for (i=0; i<MAX_PLAYERS; i++)
- {
- if (stored_player[i].active)
- network_player_action[i] = buf[6 + i];
+ stop_network_game = TRUE;
+
+ return;
}
+ /* copy valid player actions (will be set to 0 for not connected players) */
+ for (i = 0; i < MAX_PLAYERS; i++)
+ stored_player[i].effective_action =
+ getNetworkBuffer8BitInteger(read_buffer);
+
network_player_action_received = TRUE;
+}
+
+static void Handle_OP_BROADCAST_MESSAGE()
+{
+ int player_nr = getNetworkBuffer8BitInteger(read_buffer);
- /*
- sprintf(msgbuf, "frame %d: client %d moves player [0x%02x]",
- FrameCounter, buf[0], buf[2]);
- sysmsg(msgbuf);
- */
+ printf("OP_BROADCAST_MESSAGE: %d\n", player_nr);
+ Error(ERR_NETWORK_CLIENT, "client %d sends message", player_nr);
}
-static void handlemessages()
+static void Handle_OP_LEVEL_FILE()
{
- unsigned int len;
+ int player_nr = getNetworkBuffer8BitInteger(read_buffer);
+ char *leveldir_identifier;
+ char *network_level_dir;
+ struct LevelFileInfo *file_info = &network_level.file_info;
+ struct LevelFileInfo *tmpl_info = &network_level.tmpl_info;
+ boolean use_custom_template;
- while (nread >= 4 && nread >= 4 + readbuf[3])
+ setString(&network_level.leveldir_identifier, NULL);
+ setString(&network_level.file_info.basename, NULL);
+ setString(&network_level.file_info.filename, NULL);
+ setString(&network_level.tmpl_info.basename, NULL);
+ setString(&network_level.tmpl_info.filename, NULL);
+
+ printf("OP_LEVEL_FILE: %d\n", player_nr);
+
+ leveldir_identifier = getStringCopy(getNetworkBufferString(read_buffer));
+ network_level_dir = getNetworkLevelDir(leveldir_identifier);
+
+ file_info->nr = getNetworkBuffer16BitInteger(read_buffer);
+ file_info->type = getNetworkBuffer8BitInteger(read_buffer);
+ file_info->packed = getNetworkBuffer8BitInteger(read_buffer);
+ file_info->basename = getStringCopy(getNetworkBufferString(read_buffer));
+ file_info->filename = getPath2(network_level_dir, file_info->basename);
+
+ InitNetworkLevelDirectory(leveldir_identifier);
+
+ getNetworkBufferFile(read_buffer, file_info->filename);
+
+ use_custom_template = getNetworkBuffer8BitInteger(read_buffer);
+ if (use_custom_template)
{
- len = readbuf[3];
- if (readbuf[0] || readbuf[1] || readbuf[2])
- fatal("Wrong server line length");
+ *tmpl_info = *file_info;
- memcpy(buf, &readbuf[4], len);
- nread -= 4 + len;
- copydown(readbuf, readbuf + 4 + len, nread);
+ tmpl_info->basename = getStringCopy(getNetworkBufferString(read_buffer));
+ tmpl_info->filename = getPath2(network_level_dir, tmpl_info->basename);
- switch(buf[1])
- {
- case OP_BAD_PROTOCOL_VERSION:
- Handle_OP_BAD_PROTOCOL_VERSION();
- break;
+ getNetworkBufferFile(read_buffer, tmpl_info->filename);
+ }
- case OP_YOUR_NUMBER:
- Handle_OP_YOUR_NUMBER();
- break;
+ network_level.leveldir_identifier = leveldir_identifier;
+ network_level.use_custom_template = use_custom_template;
- case OP_NUMBER_WANTED:
- Handle_OP_NUMBER_WANTED();
- break;
+ /* the receiving client(s) use(s) the transferred network level files */
+ network_level.use_network_level_files = TRUE;
- case OP_NICKNAME:
- Handle_OP_NICKNAME(len);
- break;
+#if 0
+ printf("::: '%s'\n", leveldir_identifier);
+ printf("::: '%d'\n", file_info->nr);
+ printf("::: '%d'\n", file_info->type);
+ printf("::: '%d'\n", file_info->packed);
+ printf("::: '%s'\n", file_info->basename);
+ printf("::: '%s'\n", file_info->filename);
- case OP_PLAYER_CONNECTED:
- Handle_OP_PLAYER_CONNECTED();
- break;
-
- case OP_PLAYER_DISCONNECTED:
- Handle_OP_PLAYER_DISCONNECTED();
- break;
+ if (use_custom_template)
+ printf("::: '%s'\n", tmpl_info->filename);
+#endif
+}
- case OP_START_PLAYING:
- Handle_OP_START_PLAYING();
- break;
+static void HandleNetworkingMessage()
+{
+ stop_network_game = FALSE;
- case OP_PAUSE_PLAYING:
- Handle_OP_PAUSE_PLAYING();
- break;
+ initNetworkBufferForReading(read_buffer);
- case OP_CONTINUE_PLAYING:
- Handle_OP_CONTINUE_PLAYING();
- break;
+ int message_type = getNetworkBuffer8BitInteger(read_buffer);
- case OP_STOP_PLAYING:
- Handle_OP_STOP_PLAYING();
- break;
+ switch (message_type)
+ {
+ case OP_BAD_PROTOCOL_VERSION:
+ Handle_OP_BAD_PROTOCOL_VERSION();
+ break;
- case OP_MOVE_FIGURE:
- Handle_OP_MOVE_FIGURE();
- break;
+ case OP_YOUR_NUMBER:
+ Handle_OP_YOUR_NUMBER();
+ break;
- case OP_WON:
- printf("OP_WON: %d\n", buf[0]);
- sprintf(msgbuf, "client %d wins the game", buf[0]);
- sysmsg(msgbuf);
- break;
+ case OP_NUMBER_WANTED:
+ Handle_OP_NUMBER_WANTED();
+ break;
- case OP_ZERO:
- printf("OP_ZERO: %d\n", buf[0]);
- sprintf(msgbuf, "client %d resets game counters", buf[0]);
- sysmsg(msgbuf);
- break;
+ case OP_PLAYER_NAME:
+ Handle_OP_PLAYER_NAME();
+ break;
- case OP_MSG:
- printf("OP_MSG: %d\n", buf[0]);
- sprintf(msgbuf, "client %d sends message", buf[0]);
- break;
-
- case OP_LOST:
- printf("OP_MSG: %d\n", buf[0]);
- sprintf(msgbuf, "client %d has lost", buf[0]);
- break;
-
- case OP_LEVEL:
- printf("OP_MSG: %d\n", buf[0]);
- sprintf(msgbuf, "client %d sets level to %d", buf[0], buf[2]);
- break;
- }
+ case OP_PLAYER_CONNECTED:
+ Handle_OP_PLAYER_CONNECTED();
+ break;
+
+ case OP_PLAYER_DISCONNECTED:
+ Handle_OP_PLAYER_DISCONNECTED();
+ break;
+
+ case OP_START_PLAYING:
+ Handle_OP_START_PLAYING();
+ break;
+
+ case OP_PAUSE_PLAYING:
+ Handle_OP_PAUSE_PLAYING();
+ break;
+
+ case OP_CONTINUE_PLAYING:
+ Handle_OP_CONTINUE_PLAYING();
+ break;
+
+ case OP_STOP_PLAYING:
+ Handle_OP_STOP_PLAYING();
+ break;
+
+ case OP_MOVE_PLAYER:
+ Handle_OP_MOVE_PLAYER();
+ break;
+
+ case OP_BROADCAST_MESSAGE:
+ Handle_OP_BROADCAST_MESSAGE();
+ break;
+
+ case OP_LEVEL_FILE:
+ Handle_OP_LEVEL_FILE();
+ break;
+
+ default:
+ if (options.verbose)
+ Error(ERR_NETWORK_CLIENT,
+ "unknown opcode %d from server", message_type);
}
fflush(stdout);
+
+ /* in case of internal error, stop network game */
+ if (stop_network_game)
+ SendToServer_StopPlaying(NETWORK_STOP_BY_ERROR);
}
-void HandleNetworking()
+static char *HandleNetworkingPackets()
{
- static struct timeval tv = { 0, 0 };
- fd_set rfds;
- int r = 0;
+ while (1)
+ {
+ /* ---------- check network server for activity ---------- */
- if (standalone)
- return;
+ int num_active_sockets = SDLNet_CheckSockets(rfds, 0);
- flushbuf();
+ if (num_active_sockets < 0)
+ return "Error checking network sockets!";
- FD_ZERO(&rfds);
- FD_SET(sfd, &rfds);
+ if (num_active_sockets == 0)
+ break; // no active sockets, stop here
- r = select(sfd + 1, &rfds, NULL, NULL, &tv);
+ /* ---------- read packets from network server ---------- */
- if (r < 0 && errno != EINTR)
- {
- perror("select");
- fatal("fatal: select() failed");
+ initNetworkBufferForReceiving(read_buffer);
+
+ int num_bytes = receiveNetworkBufferPacket(read_buffer, sfd);
+
+ if (num_bytes < 0)
+ return "Error reading from network server!";
+
+ if (num_bytes == 0)
+ return "Connection to network server lost!";
+
+ HandleNetworkingMessage();
+
+ if (stop_network_client)
+ return stop_network_client_message;
}
- if (r < 0)
- FD_ZERO(&rfds);
+ return NULL;
+}
- if (FD_ISSET(sfd, &rfds))
+static void FreeNetworkClientPlayerInfo(struct NetworkClientPlayerInfo *player)
+{
+ if (player == NULL)
+ return;
+
+ if (player->next)
+ FreeNetworkClientPlayerInfo(player->next);
+
+ checked_free(player);
+}
+
+static void HandleNetworkingDisconnect()
+{
+ int i;
+
+ SDLNet_TCP_DelSocket(rfds, sfd);
+ SDLNet_TCP_Close(sfd);
+
+ network_playing = FALSE;
+
+ network.enabled = FALSE;
+ network.connected = FALSE;
+
+ setup.network_mode = FALSE;
+
+ for (i = 0; i < MAX_PLAYERS; i++)
+ stored_player[i].connected_network = FALSE;
+
+ FreeNetworkClientPlayerInfo(first_player.next);
+
+ first_player.nr = 0;
+ first_player.next = NULL;
+}
+
+void HandleNetworking()
+{
+ char *error_message = HandleNetworkingPackets();
+
+ if (error_message != NULL)
{
- int r;
+ HandleNetworkingDisconnect();
- r = read(sfd, readbuf + nread, MAX_BUFFER_SIZE - nread);
+ if (game_status == GAME_MODE_PLAYING)
+ {
+ Request(error_message, REQ_CONFIRM | REQ_STAY_CLOSED);
+
+ SetGameStatus(GAME_MODE_MAIN);
- if (r < 0)
- fatal("Error reading from server");
- if (r == 0)
- fatal("Connection to server lost");
- nread += r;
+ DrawMainMenu();
+ }
+ else
+ {
+ Request(error_message, REQ_CONFIRM);
- handlemessages();
+ if (game_status == GAME_MODE_MAIN)
+ ClearNetworkPlayers();
+ }
}
}
+
+void DisconnectFromNetworkServer()
+{
+ DrawNetworkText_Title("Terminating Network");
+ DrawNetworkText("Disconnecting from network server ...");
+
+ HandleNetworkingDisconnect();
+
+ DrawNetworkText_Success("Successfully disconnected!");
+
+ /* short time to recognize result of network initialization */
+ Delay_WithScreenUpdates(1000);
+}
projects / rocksndiamonds.git / blobdiff