X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Fnetwork.c;h=bb4ea67e6237ceaeed0ef3eb1322b4b4b45386d9;hb=1cacebfb41c20889c904155001a5b88ace962348;hp=033bed0d7c47115f978b9711ca50b53b92945c15;hpb=3abeab753b05c534b4061ad20a1de50a39da6daa;p=rocksndiamonds.git diff --git a/src/network.c b/src/network.c index 033bed0d..bb4ea67e 100644 --- a/src/network.c +++ b/src/network.c @@ -26,66 +26,53 @@ #include #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_FALL 3 -#define OP_DRAW 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 -/* server stuff */ +struct user +{ + byte nr; + char name[MAXNICKLEN+2]; + struct user *next; +}; + +struct user me = +{ + 0, + "no name", + NULL +}; -#define BUFLEN 4096 +/* server stuff */ int sfd; -unsigned char realbuf[512], readbuf[BUFLEN], writbuf[BUFLEN]; +unsigned char realbuf[512], readbuf[MAX_BUFFER_SIZE], writbuf[MAX_BUFFER_SIZE]; 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++); -} - void sysmsg(char *s) { - printf("** %s\n", s); - fflush(stdout); + if (verbose) + { + printf("** %s\n", s); + fflush(stdout); + } } -void fatal(char *s) +void *mmalloc(int n) { - fprintf(stderr, "%s.\n", s); - exit(1); + void *r; + + r = malloc(n); + if (r == NULL) + fatal("Out of memory"); + return r; } void u_sleep(int i) @@ -112,49 +99,64 @@ void sendbuf(int len) realbuf[0] = realbuf[1] = realbuf[2] = 0; realbuf[3] = (unsigned char)len; buf[0] = 0; - if (nwrite + 4 + len >= BUFLEN) + if (nwrite + 4 + len >= MAX_BUFFER_SIZE) fatal("Internal error: send buffer overflow"); memcpy(writbuf + nwrite, realbuf, 4 + len); nwrite += 4 + len; + + + flushbuf(); + + } } -void startserver() +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 */ +} + +char *get_user_name(unsigned char c) { - char *options[2]; - int n = 0; + struct user *u; - options[0] = options[1] = NULL; - if (norestart) - options[n++] = "-norestart"; - if (nospeedup) - options[n++] = "-nospeedup"; + if (c == 0) + return("the server"); + else if (c == me.nr) + return("you"); + else + for (u = &me; u; u = u->next) + if (u->nr == c && u->name && strlen(u->name)) + return(u->name); + + return("no name"); +} +void InitNetworkServer(int port) +{ switch (fork()) { case 0: - execlp( -#ifdef XTRISPATH - XTRISPATH "/rnd_server", -#else - "rnd_server", -#endif - "rnd_server", "-once", "-v", options[0], options[1], NULL); - - fprintf(stderr, "Can't start server '%s'.\n", -#ifdef XTRISPATH - XTRISPATH "/rnd_server" -#else - "rnd_server" -#endif - ); - - _exit(1); - + NetworkServer(port, !serveronly); + + /* never reached */ + exit(0); + case -1: - fatal("fork() failed"); - + Error(ERR_RETURN, + "cannot create network server process - no network games"); + standalone = TRUE; + return; + default: + /* we are parent process -- resume normal operation */ return; } } @@ -195,7 +197,9 @@ BOOL ConnectToServer(char *host, int port) if (!host) { printf("No rocksndiamonds server on localhost - starting up one ...\n"); - startserver(); + + InitNetworkServer(port); + for (i=0; i<6; i++) { u_sleep(500000); @@ -217,29 +221,67 @@ BOOL ConnectToServer(char *host, int port) return(TRUE); } -void SendNicknameToServer(char *nickname) +void SendToServer_Nickname(char *nickname) { static char msgbuf[300]; - buf[1] = OP_NICK; + 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); } -void SendProtocolVersionToServer() +void SendToServer_ProtocolVersion() { - buf[1] = OP_VERSION; + buf[1] = OP_PROTOCOL_VERSION; buf[2] = PROT_VERS_1; buf[3] = PROT_VERS_2; buf[4] = PROT_VERS_3; + sendbuf(5); } +void SendToServer_NrWanted(int nr_wanted) +{ + buf[1] = OP_NUMBER_WANTED; + buf[2] = nr_wanted; + + sendbuf(3); +} + +void SendToServer_StartPlaying() +{ + unsigned long new_random_seed = InitRND(NEW_RANDOMIZE); + + 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); + + 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); + + strcpy(&buf[10], leveldir[leveldir_nr].name); + + sendbuf(10 + strlen(leveldir[leveldir_nr].name)+1); +} + +void SendToServer_MovePlayer(byte player_action) +{ + buf[1] = OP_MOVE_FIGURE; + buf[2] = player_action; + + sendbuf(3); +} + void handlemessages() { unsigned int len; + struct user *u, *v = NULL; static char msgbuf[300]; while (nread >= 4 && nread >= 4 + readbuf[3]) @@ -254,36 +296,210 @@ void handlemessages() switch(buf[1]) { - case OP_YOUARE: - printf("OP_YOUARE: %d\n", buf[0]); + case OP_YOUR_NUMBER: + { + int new_client_nr = buf[2]; + int new_index_nr = new_client_nr - 1; + + printf("OP_YOUR_NUMBER: %d\n", buf[0]); + me.nr = new_client_nr; + + stored_player[new_index_nr] = *local_player; + local_player = &stored_player[new_index_nr]; + + TestPlayer = new_index_nr; + + if (me.nr > MAX_PLAYERS) + Error(ERR_EXIT, "sorry - no more than %d players", MAX_PLAYERS); + + sprintf(msgbuf, "you get client # %d", new_client_nr); + sysmsg(msgbuf); + + break; + } + + case OP_NUMBER_WANTED: + { + int client_nr_wanted = buf[2]; + int new_client_nr = buf[3]; + int new_index_nr = new_client_nr - 1; + + printf("OP_NUMBER_WANTED: %d\n", buf[0]); + + if (new_client_nr != client_nr_wanted) + { + char *color[] = { "yellow", "red", "green", "blue" }; + + sprintf(msgbuf, "Sorry ! You are %s player !", + color[new_index_nr]); + Request(msgbuf, REQ_CONFIRM); + + 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); + + me.nr = new_client_nr; + + stored_player[new_index_nr] = *local_player; + local_player = &stored_player[new_index_nr]; + + TestPlayer = new_index_nr; + } + break; + } - case OP_NEW: - printf("OP_NEW: %d\n", buf[0]); + case OP_PLAYER_CONNECTED: + printf("OP_PLAYER_CONNECTED: %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; + + break; + + case OP_NICKNAME: + 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); break; case OP_GONE: printf("OP_GONE: %d\n", buf[0]); - sprintf(msgbuf, "client %d disconnected", 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); + + break; + + case 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); + break; + + case OP_START_PLAYING: + { + int new_level_nr, new_leveldir_nr; + unsigned long new_random_seed; + unsigned char *new_leveldir_name; + + /* + if (game_status == PLAYING) + break; + */ + + 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]; + + 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); + + + 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; + + local_player->leveldir_nr = leveldir_nr; + LoadPlayerInfo(PLAYER_LEVEL); + SavePlayerInfo(PLAYER_SETUP); + + level_nr = new_level_nr; + + TapeErase(); + LoadLevelTape(level_nr); + + GetPlayerConfig(); + LoadLevel(level_nr); + + /* + if (autorecord_on) + TapeStartRecording(); + */ + + if (tape.recording) + tape.random_seed = new_random_seed; + + InitRND(new_random_seed); + + + /* + printf("tape.random_seed == %d\n", tape.random_seed); + */ + + game_status = PLAYING; + InitGame(); + break; + } + + case OP_MOVE_FIGURE: + { + int frame_nr; + int i; + + frame_nr = + (buf[2] << 24) | (buf[3] << 16) | (buf[4] << 8) | (buf[5]); - case OP_BADVERS: + if (frame_nr != FrameCounter) { - static char tmpbuf[128]; + 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"); + } - sprintf(tmpbuf, "Protocol version mismatch: server expects %d.%d.x instead of %d.%d.%d\n", buf[2], buf[3], PROT_VERS_1, PROT_VERS_2, PROT_VERS_3); - fatal(tmpbuf); + for (i=0; i