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- /*
- Copyright (C) 1997-2001 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 the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
- // server.h
- //define PARANOID // speed sapping error checking
- #include "../qcommon/qcommon.h"
- #include "../game/game.h"
- //=============================================================================
- #define MAX_MASTERS 8 // max recipients for heartbeat packets
- typedef enum {
- ss_dead, // no map loaded
- ss_loading, // spawning level edicts
- ss_game, // actively running
- ss_cinematic,
- ss_demo,
- ss_pic
- } server_state_t;
- // some qc commands are only valid before the server has finished
- // initializing (precache commands, static sounds / objects, etc)
- typedef struct
- {
- server_state_t state; // precache commands are only valid during load
- qboolean attractloop; // running cinematics and demos for the local system only
- qboolean loadgame; // client begins should reuse existing entity
- unsigned time; // always sv.framenum * 100 msec
- int framenum;
- char name[MAX_QPATH]; // map name, or cinematic name
- struct cmodel_s *models[MAX_MODELS];
- char configstrings[MAX_CONFIGSTRINGS][MAX_QPATH];
- entity_state_t baselines[MAX_EDICTS];
- // the multicast buffer is used to send a message to a set of clients
- // it is only used to marshall data until SV_Multicast is called
- sizebuf_t multicast;
- byte multicast_buf[MAX_MSGLEN];
- // demo server information
- FILE *demofile;
- qboolean timedemo; // don't time sync
- } server_t;
- #define EDICT_NUM(n) ((edict_t *)((byte *)ge->edicts + ge->edict_size*(n)))
- #define NUM_FOR_EDICT(e) ( ((byte *)(e)-(byte *)ge->edicts ) / ge->edict_size)
- typedef enum
- {
- cs_free, // can be reused for a new connection
- cs_zombie, // client has been disconnected, but don't reuse
- // connection for a couple seconds
- cs_connected, // has been assigned to a client_t, but not in game yet
- cs_spawned // client is fully in game
- } client_state_t;
- typedef struct
- {
- int areabytes;
- byte areabits[MAX_MAP_AREAS/8]; // portalarea visibility bits
- player_state_t ps;
- int num_entities;
- int first_entity; // into the circular sv_packet_entities[]
- int senttime; // for ping calculations
- } client_frame_t;
- #define LATENCY_COUNTS 16
- #define RATE_MESSAGES 10
- typedef struct client_s
- {
- client_state_t state;
- char userinfo[MAX_INFO_STRING]; // name, etc
- int lastframe; // for delta compression
- usercmd_t lastcmd; // for filling in big drops
- int commandMsec; // every seconds this is reset, if user
- // commands exhaust it, assume time cheating
- int frame_latency[LATENCY_COUNTS];
- int ping;
- int message_size[RATE_MESSAGES]; // used to rate drop packets
- int rate;
- int surpressCount; // number of messages rate supressed
- edict_t *edict; // EDICT_NUM(clientnum+1)
- char name[32]; // extracted from userinfo, high bits masked
- int messagelevel; // for filtering printed messages
- // The datagram is written to by sound calls, prints, temp ents, etc.
- // It can be harmlessly overflowed.
- sizebuf_t datagram;
- byte datagram_buf[MAX_MSGLEN];
- client_frame_t frames[UPDATE_BACKUP]; // updates can be delta'd from here
- byte *download; // file being downloaded
- int downloadsize; // total bytes (can't use EOF because of paks)
- int downloadcount; // bytes sent
- int lastmessage; // sv.framenum when packet was last received
- int lastconnect;
- int challenge; // challenge of this user, randomly generated
- netchan_t netchan;
- } client_t;
- // a client can leave the server in one of four ways:
- // dropping properly by quiting or disconnecting
- // timing out if no valid messages are received for timeout.value seconds
- // getting kicked off by the server operator
- // a program error, like an overflowed reliable buffer
- //=============================================================================
- // MAX_CHALLENGES is made large to prevent a denial
- // of service attack that could cycle all of them
- // out before legitimate users connected
- #define MAX_CHALLENGES 1024
- typedef struct
- {
- netadr_t adr;
- int challenge;
- int time;
- } challenge_t;
- typedef struct
- {
- qboolean initialized; // sv_init has completed
- int realtime; // always increasing, no clamping, etc
- char mapcmd[MAX_TOKEN_CHARS]; // ie: *intro.cin+base
- int spawncount; // incremented each server start
- // used to check late spawns
- client_t *clients; // [maxclients->value];
- int num_client_entities; // maxclients->value*UPDATE_BACKUP*MAX_PACKET_ENTITIES
- int next_client_entities; // next client_entity to use
- entity_state_t *client_entities; // [num_client_entities]
- int last_heartbeat;
- challenge_t challenges[MAX_CHALLENGES]; // to prevent invalid IPs from connecting
- // serverrecord values
- FILE *demofile;
- sizebuf_t demo_multicast;
- byte demo_multicast_buf[MAX_MSGLEN];
- } server_static_t;
- //=============================================================================
- extern netadr_t net_from;
- extern sizebuf_t net_message;
- extern netadr_t master_adr[MAX_MASTERS]; // address of the master server
- extern server_static_t svs; // persistant server info
- extern server_t sv; // local server
- extern cvar_t *sv_paused;
- extern cvar_t *maxclients;
- extern cvar_t *sv_noreload; // don't reload level state when reentering
- extern cvar_t *sv_airaccelerate; // don't reload level state when reentering
- // development tool
- extern cvar_t *sv_enforcetime;
- extern client_t *sv_client;
- extern edict_t *sv_player;
- //===========================================================
- //
- // sv_main.c
- //
- void SV_FinalMessage (char *message, qboolean reconnect);
- void SV_DropClient (client_t *drop);
- int SV_ModelIndex (char *name);
- int SV_SoundIndex (char *name);
- int SV_ImageIndex (char *name);
- void SV_WriteClientdataToMessage (client_t *client, sizebuf_t *msg);
- void SV_ExecuteUserCommand (char *s);
- void SV_InitOperatorCommands (void);
- void SV_SendServerinfo (client_t *client);
- void SV_UserinfoChanged (client_t *cl);
- void Master_Heartbeat (void);
- void Master_Packet (void);
- //
- // sv_init.c
- //
- void SV_InitGame (void);
- void SV_Map (qboolean attractloop, char *levelstring, qboolean loadgame);
- //
- // sv_phys.c
- //
- void SV_PrepWorldFrame (void);
- //
- // sv_send.c
- //
- typedef enum {RD_NONE, RD_CLIENT, RD_PACKET} redirect_t;
- #define SV_OUTPUTBUF_LENGTH (MAX_MSGLEN - 16)
- extern char sv_outputbuf[SV_OUTPUTBUF_LENGTH];
- void SV_FlushRedirect (int sv_redirected, char *outputbuf);
- void SV_DemoCompleted (void);
- void SV_SendClientMessages (void);
- void SV_Multicast (vec3_t origin, multicast_t to);
- void SV_StartSound (vec3_t origin, edict_t *entity, int channel,
- int soundindex, float volume,
- float attenuation, float timeofs);
- void SV_ClientPrintf (client_t *cl, int level, char *fmt, ...);
- void SV_BroadcastPrintf (int level, char *fmt, ...);
- void SV_BroadcastCommand (char *fmt, ...);
- //
- // sv_user.c
- //
- void SV_Nextserver (void);
- void SV_ExecuteClientMessage (client_t *cl);
- //
- // sv_ccmds.c
- //
- void SV_ReadLevelFile (void);
- void SV_Status_f (void);
- //
- // sv_ents.c
- //
- void SV_WriteFrameToClient (client_t *client, sizebuf_t *msg);
- void SV_RecordDemoMessage (void);
- void SV_BuildClientFrame (client_t *client);
- void SV_Error (char *error, ...);
- //
- // sv_game.c
- //
- extern game_export_t *ge;
- void SV_InitGameProgs (void);
- void SV_ShutdownGameProgs (void);
- void SV_InitEdict (edict_t *e);
- //============================================================
- //
- // high level object sorting to reduce interaction tests
- //
- void SV_ClearWorld (void);
- // called after the world model has been loaded, before linking any entities
- void SV_UnlinkEdict (edict_t *ent);
- // call before removing an entity, and before trying to move one,
- // so it doesn't clip against itself
- void SV_LinkEdict (edict_t *ent);
- // Needs to be called any time an entity changes origin, mins, maxs,
- // or solid. Automatically unlinks if needed.
- // sets ent->v.absmin and ent->v.absmax
- // sets ent->leafnums[] for pvs determination even if the entity
- // is not solid
- int SV_AreaEdicts (vec3_t mins, vec3_t maxs, edict_t **list, int maxcount, int areatype);
- // fills in a table of edict pointers with edicts that have bounding boxes
- // that intersect the given area. It is possible for a non-axial bmodel
- // to be returned that doesn't actually intersect the area on an exact
- // test.
- // returns the number of pointers filled in
- // ??? does this always return the world?
- //===================================================================
- //
- // functions that interact with everything apropriate
- //
- int SV_PointContents (vec3_t p);
- // returns the CONTENTS_* value from the world at the given point.
- // Quake 2 extends this to also check entities, to allow moving liquids
- trace_t SV_Trace (vec3_t start, vec3_t mins, vec3_t maxs, vec3_t end, edict_t *passedict, int contentmask);
- // mins and maxs are relative
- // if the entire move stays in a solid volume, trace.allsolid will be set,
- // trace.startsolid will be set, and trace.fraction will be 0
- // if the starting point is in a solid, it will be allowed to move out
- // to an open area
- // passedict is explicitly excluded from clipping checks (normally NULL)
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