/* sv_send.c (description) Copyright (C) 1996-1997 Id Software, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to: Free Software Foundation, Inc. 59 Temple Place - Suite 330 Boston, MA 02111-1307, USA */ static const char rcsid[] = "$Id$"; #ifdef HAVE_CONFIG_H # include "config.h" #endif #ifdef HAVE_STRING_H # include #endif #ifdef HAVE_STRINGS_H # include #endif #include #include #include #include "QF/console.h" #include "QF/cvar.h" #include "QF/msg.h" #include "QF/sound.h" // FIXME: DEFAULT_SOUND_PACKET_* #include "QF/sys.h" #include "bothdefs.h" #include "compat.h" #include "net_svc.h" #include "server.h" #include "sv_progs.h" #define CHAN_AUTO 0 #define CHAN_WEAPON 1 #define CHAN_VOICE 2 #define CHAN_ITEM 3 #define CHAN_BODY 4 /* SV_Printf redirection */ char outputbuf[8000]; int con_printf_no_log; redirect_t sv_redirected; void SV_FlushRedirect (void) { char send[8000 + 6]; net_svc_print_t block; if (sv_redirected == RD_PACKET) { send[0] = 0xff; send[1] = 0xff; send[2] = 0xff; send[3] = 0xff; send[4] = A2C_PRINT; memcpy (send + 5, outputbuf, strlen (outputbuf) + 1); NET_SendPacket (strlen (send) + 1, send, net_from); } else if (sv_redirected == RD_CLIENT) { block.level = PRINT_HIGH; block.message = outputbuf; ClientReliableWrite_Begin (host_client, svc_print, strlen (outputbuf) + 3); if (host_client->num_backbuf) { NET_SVC_Print_Emit (&block, &host_client->backbuf); ClientReliable_FinishWrite (host_client); } else NET_SVC_Print_Emit (&block, &host_client->netchan.message); } // clear it outputbuf[0] = 0; } /* SV_BeginRedirect Send SV_Printf data to the remote client instead of the console */ void SV_BeginRedirect (redirect_t rd) { sv_redirected = rd; outputbuf[0] = 0; } void SV_EndRedirect (void) { SV_FlushRedirect (); sv_redirected = RD_NONE; } #define MAXPRINTMSG 4096 /* SV_Printf Handles cursor positioning, line wrapping, etc */ // FIXME: the msg variables need to be renamed/cleaned up void SV_Print (const char *fmt, va_list args) { static int pending = 0; // partial line being printed char premsg[MAXPRINTMSG]; unsigned char msg[MAXPRINTMSG]; char msg2[MAXPRINTMSG]; char msg3[MAXPRINTMSG]; time_t mytime = 0; struct tm *local = NULL; qboolean timestamps = false; unsigned char *in, *out; vsnprintf (premsg, sizeof (premsg), fmt, args); in = premsg; out = msg; // expand FFnickFF to nick do { switch (*in) { case 0xFF: { char *end = strchr (in + 1, 0xFF); int userid = 0; int len; int i; if (!end) end = in + strlen (in); *end = '\0'; for (i = 0; i < MAX_CLIENTS; i++) { if (!svs.clients[i].state) continue; if (!strcmp (svs.clients[i].name, in + 1)) { userid = svs.clients[i].userid; break; } } len = snprintf (out, sizeof (msg) - (out - msg), "%s <%d>", in + 1, userid); out += len; in = end + 1; break; } default: *out++ = *in++; } } while (sizeof (msg) - (out - msg) > 0 && *in); *out = '\0'; if (sv_redirected) { // Add to redirected message if (strlen (msg) + strlen (outputbuf) > sizeof (outputbuf) - 1) SV_FlushRedirect (); strncat (outputbuf, msg, sizeof (outputbuf) - strlen (outputbuf)); } if (!con_printf_no_log) { // We want to output to console and maybe logfile if (sv_timestamps && sv_timefmt && sv_timefmt->string && sv_timestamps->int_val && !pending) timestamps = true; if (timestamps) { mytime = time (NULL); local = localtime (&mytime); strftime (msg3, sizeof (msg3), sv_timefmt->string, local); snprintf (msg2, sizeof (msg2), "%s%s", msg3, msg); } else { snprintf (msg2, sizeof (msg2), "%s", msg); } if (msg2[strlen (msg2) - 1] != '\n') { pending = 1; } else { pending = 0; } Con_Printf ("%s", msg2); // also echo to debugging console if (sv_logfile) Qprintf (sv_logfile, "%s", msg2); } } void SV_Printf (const char *fmt, ...) { va_list argptr; va_start (argptr, fmt); SV_Print (fmt, argptr); va_end (argptr); } /* EVENT MESSAGES */ static void SV_PrintToClient (client_t *cl, int level, const char *string) { static unsigned char *buffer; const unsigned char *a; unsigned char *b; int size; static int buffer_size; net_svc_print_t block; size = strlen (string) + 1; if (size > buffer_size) { buffer_size = (size + 1023) & ~1023; // 1k multiples if (buffer) free (buffer); buffer = malloc (buffer_size); if (!buffer) Sys_Error ("SV_PrintToClient: could not allocate %d bytes\n", buffer_size); } a = string; b = buffer; // strip 0xFFs while ((*b = *a++)) if (*b != 0xFF) b++; block.level = level; block.message = buffer; ClientReliableWrite_Begin (cl, svc_print, strlen (buffer) + 3); if (cl->num_backbuf) { NET_SVC_Print_Emit (&block, &cl->backbuf); ClientReliable_FinishWrite (cl); } else NET_SVC_Print_Emit (&block, &cl->netchan.message); } /* SV_ClientPrintf Sends text across to be displayed if the level passes */ void SV_ClientPrintf (client_t *cl, int level, const char *fmt, ...) { char string[1024]; va_list argptr; if (level < cl->messagelevel) return; va_start (argptr, fmt); vsnprintf (string, sizeof (string), fmt, argptr); va_end (argptr); SV_PrintToClient (cl, level, string); } /* SV_BroadcastPrintf Sends text to all active clients */ void SV_BroadcastPrintf (int level, const char *fmt, ...) { char string[1024]; client_t *cl; int i; va_list argptr; va_start (argptr, fmt); vsnprintf (string, sizeof (string), fmt, argptr); va_end (argptr); SV_Printf ("%s", string); // print to the console for (i = 0, cl = svs.clients; i < MAX_CLIENTS; i++, cl++) { if (level < cl->messagelevel) continue; if (!cl->state) continue; SV_PrintToClient (cl, level, string); } } /* SV_BroadcastCommand Sends text to all active clients */ void SV_BroadcastCommand (const char *fmt, ...) { char string[1024]; va_list argptr; if (!sv.state) return; va_start (argptr, fmt); vsnprintf (string, sizeof (string), fmt, argptr); va_end (argptr); MSG_WriteByte (&sv.reliable_datagram, svc_stufftext); MSG_WriteString (&sv.reliable_datagram, string); } /* SV_Multicast Sends the contents of sv.multicast to a subset of the clients, then clears sv.multicast. MULTICAST_ALL same as broadcast MULTICAST_PVS send to clients potentially visible from org MULTICAST_PHS send to clients potentially hearable from org */ void SV_Multicast (vec3_t origin, int to) { byte *mask; client_t *client; int leafnum, j; mleaf_t *leaf; qboolean reliable; leaf = Mod_PointInLeaf (origin, sv.worldmodel); if (!leaf) leafnum = 0; else leafnum = leaf - sv.worldmodel->leafs; reliable = false; switch (to) { case MULTICAST_ALL_R: reliable = true; // intentional fallthrough case MULTICAST_ALL: mask = sv.pvs; // leaf 0 is everything; break; case MULTICAST_PHS_R: reliable = true; // intentional fallthrough case MULTICAST_PHS: mask = sv.phs + leafnum * 4 * ((sv.worldmodel->numleafs + 31) >> 5); break; case MULTICAST_PVS_R: reliable = true; // intentional fallthrough case MULTICAST_PVS: mask = sv.pvs + leafnum * 4 * ((sv.worldmodel->numleafs + 31) >> 5); break; default: mask = NULL; SV_Error ("SV_Multicast: bad to:%i", to); } // send the data to all relevent clients for (j = 0, client = svs.clients; j < MAX_CLIENTS; j++, client++) { if (client->state != cs_spawned) continue; if (to == MULTICAST_PHS_R || to == MULTICAST_PHS) { vec3_t delta; VectorSubtract (origin, SVvector (client->edict, origin), delta); if (Length (delta) <= 1024) goto inrange; } leaf = Mod_PointInLeaf (SVvector (client->edict, origin), sv.worldmodel); if (leaf) { // -1 is because pvs rows are 1 based, not 0 based like leafs leafnum = leaf - sv.worldmodel->leafs - 1; if (!(mask[leafnum >> 3] & (1 << (leafnum & 7)))) { // SV_Printf ("supressed multicast\n"); continue; } } inrange: if (reliable) { ClientReliableCheckBlock (client, sv.multicast.cursize); ClientReliableWrite_SZ (client, sv.multicast.data, sv.multicast.cursize); } else SZ_Write (&client->datagram, sv.multicast.data, sv.multicast.cursize); } SZ_Clear (&sv.multicast); } /* SV_StartSound Each entity can have eight independant sound sources, like voice, weapon, feet, etc. Channel 0 is an auto-allocate channel, the others override anything already running on that entity/channel pair. An attenuation of 0 will play full volume everywhere in the level. Larger attenuations will drop off. (max 4 attenuation) */ void SV_StartSound (edict_t *entity, int channel, const char *sample, float volume, float attenuation) { int i, sound_num; qboolean use_phs; qboolean reliable = false; net_svc_sound_t block; if (volume < 0 || volume > 1) SV_Error ("SV_StartSound: volume = %f", volume); if (attenuation < 0 || attenuation > 4) SV_Error ("SV_StartSound: attenuation = %f", attenuation); if (channel < 0 || channel > 15) SV_Error ("SV_StartSound: channel = %i", channel); // find precache number for sound for (sound_num = 1; sound_num < MAX_SOUNDS && sv.sound_precache[sound_num]; sound_num++) if (!strcmp (sample, sv.sound_precache[sound_num])) break; if (sound_num == MAX_SOUNDS || !sv.sound_precache[sound_num]) { SV_Printf ("SV_StartSound: %s not precacheed\n", sample); return; } block.sound_num = sound_num; block.entity = NUM_FOR_EDICT (&sv_pr_state, entity); if ((channel & 8) || !sv_phs->int_val) // no PHS flag { if (channel & 8) reliable = true; // sounds that break the phs are // reliable use_phs = false; channel &= 7; } else use_phs = true; // if (channel == CHAN_BODY || channel == CHAN_VOICE) // reliable = true; block.channel = channel; block.volume = volume; // 4 * 64 == 256, which overflows a byte. 4 is the stated max for // it, and I don't want to break any progs, so I just nudge it // down instead if (attenuation == 4) attenuation = 3.999; block.attenuation = attenuation; // use the entity origin unless it is a bmodel if (SVfloat (entity, solid) == SOLID_BSP) { for (i = 0; i < 3; i++) block.position[i] = SVvector (entity, origin)[i] + 0.5 * (SVvector (entity, mins)[i] + SVvector (entity, maxs)[i]); } else { VectorCopy (SVvector (entity, origin), block.position); } MSG_WriteByte (&sv.multicast, svc_sound); NET_SVC_Sound_Emit (&block, &sv.multicast); if (use_phs) SV_Multicast (block.position, reliable ? MULTICAST_PHS_R : MULTICAST_PHS); else SV_Multicast (block.position, reliable ? MULTICAST_ALL_R : MULTICAST_ALL); } /* FRAME UPDATES */ int sv_nailmodel, sv_supernailmodel, sv_playermodel; void SV_FindModelNumbers (void) { int i; sv_nailmodel = -1; sv_supernailmodel = -1; sv_playermodel = -1; for (i = 0; i < MAX_MODELS; i++) { if (!sv.model_precache[i]) break; if (!strcmp (sv.model_precache[i], "progs/spike.mdl")) sv_nailmodel = i; if (!strcmp (sv.model_precache[i], "progs/s_spike.mdl")) sv_supernailmodel = i; if (!strcmp (sv.model_precache[i], "progs/player.mdl")) sv_playermodel = i; } } void SV_WriteClientdataToMessage (client_t *client, sizebuf_t *msg) { edict_t *ent, *other; int i; net_svc_damage_t block; ent = client->edict; // send the chokecount for r_netgraph if (client->chokecount) { MSG_WriteByte (msg, svc_chokecount); MSG_WriteByte (msg, client->chokecount); client->chokecount = 0; } // send a damage message if the player got hit this frame if (SVfloat (ent, dmg_take) || SVfloat (ent, dmg_save)) { other = PROG_TO_EDICT (&sv_pr_state, SVentity (ent, dmg_inflictor)); block.armor = SVfloat (ent, dmg_save); block.blood = SVfloat (ent, dmg_take); for (i = 0; i < 3; i++) block.from[i] = SVvector (other, origin)[i] + 0.5 * (SVvector (other, mins)[i] + SVvector (other, maxs)[i]); MSG_WriteByte (msg, svc_damage); NET_SVC_Damage_Emit (&block, msg); SVfloat (ent, dmg_take) = 0; SVfloat (ent, dmg_save) = 0; } // a fixangle might get lost in a dropped packet. Oh well. if (SVfloat (ent, fixangle)) { MSG_WriteByte (msg, svc_setangle); for (i = 0; i < 3; i++) MSG_WriteAngle (msg, SVvector (ent, angles)[i]); SVfloat (ent, fixangle) = 0; } } /* SV_UpdateClientStats Performs a delta update of the stats array. This should only be performed when a reliable message can be delivered this frame. */ void SV_UpdateClientStats (client_t *client) { edict_t *ent; int i; int stats[MAX_CL_STATS]; ent = client->edict; memset (stats, 0, sizeof (stats)); // if we are a spectator and we are tracking a player, we get his stats // so our status bar reflects his if (client->spectator && client->spec_track > 0) ent = svs.clients[client->spec_track - 1].edict; stats[STAT_HEALTH] = SVfloat (ent, health); stats[STAT_WEAPON] = SV_ModelIndex (PR_GetString (&sv_pr_state, SVstring (ent, weaponmodel))); stats[STAT_AMMO] = SVfloat (ent, currentammo); stats[STAT_ARMOR] = SVfloat (ent, armorvalue); stats[STAT_SHELLS] = SVfloat (ent, ammo_shells); stats[STAT_NAILS] = SVfloat (ent, ammo_nails); stats[STAT_ROCKETS] = SVfloat (ent, ammo_rockets); stats[STAT_CELLS] = SVfloat (ent, ammo_cells); if (!client->spectator) stats[STAT_ACTIVEWEAPON] = SVfloat (ent, weapon); // stuff the sigil bits into the high bits of items for sbar stats[STAT_ITEMS] = (int) SVfloat (ent, items) | ((int) *sv_globals.serverflags << 28); // Extensions to the QW 2.40 protocol for Mega2k --KB stats[STAT_VIEWHEIGHT] = (int) SVvector (ent, view_ofs)[2]; // FIXME: this should become a * key! --KB if (SVfloat (ent, movetype) == MOVETYPE_FLY && !atoi (Info_ValueForKey (svs.info, "playerfly"))) SVfloat (ent, movetype) = MOVETYPE_WALK; stats[STAT_FLYMODE] = (SVfloat (ent, movetype) == MOVETYPE_FLY); for (i = 0; i < MAX_CL_STATS; i++) if (stats[i] != client->stats[i]) { client->stats[i] = stats[i]; if (stats[i] >= 0 && stats[i] <= 255) { ClientReliableWrite_Begin (client, svc_updatestat, 3); ClientReliableWrite_Byte (client, i); ClientReliableWrite_Byte (client, stats[i]); } else { ClientReliableWrite_Begin (client, svc_updatestatlong, 6); ClientReliableWrite_Byte (client, i); ClientReliableWrite_Long (client, stats[i]); } } } qboolean SV_SendClientDatagram (client_t *client) { byte buf[MAX_DATAGRAM]; sizebuf_t msg; msg.data = buf; msg.maxsize = sizeof (buf); msg.cursize = 0; msg.allowoverflow = true; msg.overflowed = false; // add the client specific data to the datagram SV_WriteClientdataToMessage (client, &msg); // send over all the objects that are in the PVS // this will include clients, a packetentities, and // possibly a nails update SV_WriteEntitiesToClient (client, &msg); // copy the accumulated multicast datagram // for this client out to the message if (client->datagram.overflowed) SV_Printf ("WARNING: datagram overflowed for %s\n", client->name); else SZ_Write (&msg, client->datagram.data, client->datagram.cursize); SZ_Clear (&client->datagram); // send deltas over reliable stream if (Netchan_CanReliable (&client->netchan)) SV_UpdateClientStats (client); if (msg.overflowed) { SV_Printf ("WARNING: msg overflowed for %s\n", client->name); SZ_Clear (&msg); } // send the datagram Netchan_Transmit (&client->netchan, msg.cursize, buf); return true; } void SV_UpdateToReliableMessages (void) { client_t *client; edict_t *ent; int i, j; pr_type_t *val; // check for changes to be sent over the reliable streams to all clients for (i = 0, host_client = svs.clients; i < MAX_CLIENTS; i++, host_client++) { if (host_client->state != cs_spawned) continue; if (host_client->sendinfo) { host_client->sendinfo = false; SV_FullClientUpdate (host_client, &sv.reliable_datagram); } if (host_client->old_frags != (int) SVfloat (host_client->edict, frags)) { for (j = 0, client = svs.clients; j < MAX_CLIENTS; j++, client++) { if (client->state < cs_connected) continue; ClientReliableWrite_Begin (client, svc_updatefrags, 4); ClientReliableWrite_Byte (client, i); ClientReliableWrite_Short (client, SVfloat (host_client->edict, frags)); } host_client->old_frags = SVfloat (host_client->edict, frags); } // maxspeed/entgravity changes ent = host_client->edict; val = GetEdictFieldValue (&sv_pr_state, ent, "gravity"); if (val && host_client->entgravity != val->float_var) { host_client->entgravity = val->float_var; ClientReliableWrite_Begin (host_client, svc_entgravity, 5); ClientReliableWrite_Float (host_client, host_client->entgravity); } val = GetEdictFieldValue (&sv_pr_state, ent, "maxspeed"); if (val && host_client->maxspeed != val->float_var) { host_client->maxspeed = val->float_var; ClientReliableWrite_Begin (host_client, svc_maxspeed, 5); ClientReliableWrite_Float (host_client, host_client->maxspeed); } } if (sv.datagram.overflowed) SZ_Clear (&sv.datagram); // append the broadcast messages to each client messages for (j = 0, client = svs.clients; j < MAX_CLIENTS; j++, client++) { if (client->state < cs_connected) continue; // reliables go to all connected or // spawned ClientReliableCheckBlock (client, sv.reliable_datagram.cursize); ClientReliableWrite_SZ (client, sv.reliable_datagram.data, sv.reliable_datagram.cursize); if (client->state != cs_spawned) continue; // datagrams only go to spawned SZ_Write (&client->datagram, sv.datagram.data, sv.datagram.cursize); } SZ_Clear (&sv.reliable_datagram); SZ_Clear (&sv.datagram); } #if defined(_WIN32) && !defined(__GNUC__) # pragma optimize( "", off ) #endif void SV_SendClientMessages (void) { client_t *c; int i, j; // update frags, names, etc SV_UpdateToReliableMessages (); // build individual updates for (i = 0, c = svs.clients; i < MAX_CLIENTS; i++, c++) { if (!c->state) continue; if (c->drop) { SV_DropClient (c); c->drop = false; continue; } // check to see if we have a backbuf to stick in the reliable if (c->num_backbuf) { // will it fit? if (c->netchan.message.cursize + c->backbuf_size[0] < c->netchan.message.maxsize) { Con_DPrintf ("%s: backbuf %d bytes\n", c->name, c->backbuf_size[0]); // it'll fit SZ_Write (&c->netchan.message, c->backbuf_data[0], c->backbuf_size[0]); // move along, move along for (j = 1; j < c->num_backbuf; j++) { memcpy (c->backbuf_data[j - 1], c->backbuf_data[j], c->backbuf_size[j]); c->backbuf_size[j - 1] = c->backbuf_size[j]; } c->num_backbuf--; if (c->num_backbuf) { memset (&c->backbuf, 0, sizeof (c->backbuf)); c->backbuf.data = c->backbuf_data[c->num_backbuf - 1]; c->backbuf.cursize = c->backbuf_size[c->num_backbuf - 1]; c->backbuf.maxsize = sizeof (c->backbuf_data[c->num_backbuf - 1]); } } } // if the reliable message overflowed, drop the client if (c->netchan.message.overflowed) { int i; byte *data = Hunk_TempAlloc (MAX_MSGLEN + 8); memset (data, 0, 8); memcpy (data + 8, c->netchan.message.data, c->netchan.message.cursize); Analyze_Server_Packet (data, c->netchan.message.cursize + 8); for (i = 0; i < c->num_backbuf; i++) { memcpy (data + 8, c->backbuf_data[i], c->backbuf_size[i]); Analyze_Server_Packet (data, c->backbuf_size[i] + 8); } SZ_Clear (&c->netchan.message); SZ_Clear (&c->datagram); SV_BroadcastPrintf (PRINT_HIGH, "%s overflowed\n", c->name); SV_Printf ("WARNING: reliable overflow for %s\n", c->name); SV_DropClient (c); c->send_message = true; c->netchan.cleartime = 0; // don't choke this message } // only send messages if the client has sent one // and the bandwidth is not choked if (!c->send_message) continue; c->send_message = false; // try putting this after choke? if (!sv.paused && !Netchan_CanPacket (&c->netchan)) { c->chokecount++; continue; // bandwidth choke } if (c->state == cs_spawned) SV_SendClientDatagram (c); else Netchan_Transmit (&c->netchan, 0, NULL); // just update // reliable } } #if defined(_WIN32) && !defined(__GNUC__) # pragma optimize( "", on ) #endif /* SV_SendMessagesToAll FIXME: does this sequence right? */ void SV_SendMessagesToAll (void) { client_t *c; int i; for (i = 0, c = svs.clients; i < MAX_CLIENTS; i++, c++) if (c->state) // FIXME: should this only send to // active? c->send_message = true; SV_SendClientMessages (); }