cl_main.c

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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.
 
*/
// cl_main.c  -- client main loop
 
#include "client.h"
 
cvar_t  *freelook;
 
cvar_t  *adr0;
cvar_t  *adr1;
cvar_t  *adr2;
cvar_t  *adr3;
cvar_t  *adr4;
cvar_t  *adr5;
cvar_t  *adr6;
cvar_t  *adr7;
cvar_t  *adr8;
 
cvar_t  *cl_stereo_separation;
cvar_t  *cl_stereo;
 
cvar_t  *rcon_client_password;
cvar_t  *rcon_address;
 
cvar_t  *cl_noskins;
cvar_t  *cl_autoskins;
cvar_t  *cl_footsteps;
cvar_t  *cl_timeout;
cvar_t  *cl_predict;
//cvar_t    *cl_minfps;
cvar_t  *cl_maxfps;
cvar_t  *cl_drawfps;
cvar_t  *cl_gun;
#ifdef QMAX
cvar_t  *cl_blood;
 
cvar_t  *cl_railred;
cvar_t  *cl_railgreen;
cvar_t  *cl_railblue;
cvar_t  *cl_railtype;
 
cvar_t  *cl_3dcam;
cvar_t  *cl_3dcam_angle;
cvar_t  *cl_3dcam_chase;
cvar_t  *cl_3dcam_dist;
cvar_t  *cl_3dcam_alpha;
cvar_t  *cl_3dcam_adjust;
#endif
cvar_t  *cl_add_particles;
cvar_t  *cl_add_lights;
cvar_t  *cl_add_entities;
cvar_t  *cl_add_blend;
 
cvar_t  *cl_shownet;
cvar_t  *cl_showmiss;
cvar_t  *cl_showclamp;
 
cvar_t  *cl_paused;
cvar_t  *cl_timedemo;
 
cvar_t  *lookspring;
cvar_t  *lookstrafe;
cvar_t  *sensitivity;
 
cvar_t  *m_pitch;
cvar_t  *m_yaw;
cvar_t  *m_forward;
cvar_t  *m_side;
 
cvar_t  *cl_lightlevel;
 
//
// userinfo
//
cvar_t  *info_password;
cvar_t  *info_spectator;
cvar_t  *name;
cvar_t  *skin;
cvar_t  *rate;
cvar_t  *fov;
cvar_t  *msg;
cvar_t  *hand;
cvar_t  *gender;
cvar_t  *gender_auto;
 
cvar_t  *cl_vwep;
 
client_static_t cls;
client_state_t  cl;
 
centity_t       cl_entities[MAX_EDICTS];
 
entity_state_t  cl_parse_entities[MAX_PARSE_ENTITIES];
 
extern  cvar_t *allow_download;
extern  cvar_t *allow_download_players;
extern  cvar_t *allow_download_models;
extern  cvar_t *allow_download_sounds;
extern  cvar_t *allow_download_maps;
 
//======================================================================
 
 
/*
====================
CL_WriteDemoMessage
 
Dumps the current net message, prefixed by the length
====================
*/
void CL_WriteDemoMessage (void)
{
    int     len, swlen;
 
    // the first eight bytes are just packet sequencing stuff
    len = net_message.cursize-8;
    swlen = LittleLong(len);
    fwrite (&swlen, 4, 1, cls.demofile);
    fwrite (net_message.data+8, len, 1, cls.demofile);
}
 
 
/*
====================
CL_Stop_f
 
stop recording a demo
====================
*/
void CL_Stop_f (void)
{
    int     len;
 
    if (!cls.demorecording)
    {
        Com_Printf ("Not recording a demo.\n");
        return;
    }
 
// finish up
    len = -1;
    fwrite (&len, 4, 1, cls.demofile);
    fclose (cls.demofile);
    cls.demofile = NULL;
    cls.demorecording = false;
    Com_Printf ("Stopped demo.\n");
}
 
/*
====================
CL_Record_f
 
record <demoname>
 
Begins recording a demo from the current position
====================
*/
void CL_Record_f (void)
{
    char    name[MAX_OSPATH];
    byte    buf_data[MAX_MSGLEN];
    sizebuf_t   buf;
    int     i;
    int     len;
    entity_state_t  *ent;
    entity_state_t  nullstate;
 
    if (Cmd_Argc() != 2)
    {
        Com_Printf ("record <demoname>\n");
        return;
    }
 
    if (cls.demorecording)
    {
        Com_Printf ("Already recording.\n");
        return;
    }
 
    if (cls.state != ca_active)
    {
        Com_Printf ("You must be in a level to record.\n");
        return;
    }
 
    //
    // open the demo file
    //
    Com_sprintf (name, sizeof(name), "%s/demos/%s.dm2", FS_Gamedir(), Cmd_Argv(1));
 
    Com_Printf ("recording to %s.\n", name);
    FS_CreatePath (name);
    cls.demofile = fopen (name, "wb");
    if (!cls.demofile)
    {
        Com_Printf ("ERROR: couldn't open.\n");
        return;
    }
    cls.demorecording = true;
 
    // don't start saving messages until a non-delta compressed message is received
    cls.demowaiting = true;
 
    //
    // write out messages to hold the startup information
    //
    SZ_Init (&buf, buf_data, sizeof(buf_data));
 
    // send the serverdata
    MSG_WriteByte (&buf, svc_serverdata);
    MSG_WriteLong (&buf, PROTOCOL_VERSION);
    MSG_WriteLong (&buf, 0x10000 + cl.servercount);
    MSG_WriteByte (&buf, 1);    // demos are always attract loops
    MSG_WriteString (&buf, cl.gamedir);
    MSG_WriteShort (&buf, cl.playernum);
 
    MSG_WriteString (&buf, cl.configstrings[CS_NAME]);
 
    // configstrings
    for (i=0 ; i<MAX_CONFIGSTRINGS ; i++)
    {
        if (cl.configstrings[i][0])
        {
            if (buf.cursize + strlen (cl.configstrings[i]) + 32 > buf.maxsize)
            {   // write it out
                len = LittleLong (buf.cursize);
                fwrite (&len, 4, 1, cls.demofile);
                fwrite (buf.data, buf.cursize, 1, cls.demofile);
                buf.cursize = 0;
            }
 
            MSG_WriteByte (&buf, svc_configstring);
            MSG_WriteShort (&buf, i);
            MSG_WriteString (&buf, cl.configstrings[i]);
        }
 
    }
 
    // baselines
    memset (&nullstate, 0, sizeof(nullstate));
    for (i=0; i<MAX_EDICTS ; i++)
    {
        ent = &cl_entities[i].baseline;
        if (!ent->modelindex)
            continue;
 
        if (buf.cursize + 64 > buf.maxsize)
        {   // write it out
            len = LittleLong (buf.cursize);
            fwrite (&len, 4, 1, cls.demofile);
            fwrite (buf.data, buf.cursize, 1, cls.demofile);
            buf.cursize = 0;
        }
 
        MSG_WriteByte (&buf, svc_spawnbaseline);        
        MSG_WriteDeltaEntity (&nullstate, &cl_entities[i].baseline, &buf, true, true);
    }
 
    MSG_WriteByte (&buf, svc_stufftext);
    MSG_WriteString (&buf, "precache\n");
 
    // write it to the demo file
 
    len = LittleLong (buf.cursize);
    fwrite (&len, 4, 1, cls.demofile);
    fwrite (buf.data, buf.cursize, 1, cls.demofile);
 
    // the rest of the demo file will be individual frames
}
 
//======================================================================
 
/*
===================
Cmd_ForwardToServer
 
adds the current command line as a clc_stringcmd to the client message.
things like godmode, noclip, etc, are commands directed to the server,
so when they are typed in at the console, they will need to be forwarded.
===================
*/
void Cmd_ForwardToServer (void)
{
    char    *cmd;
 
    cmd = Cmd_Argv(0);
    if (cls.state <= ca_connected || *cmd == '-' || *cmd == '+')
    {
        Com_Printf ("Unknown command \"%s\"\n", cmd);
        return;
    }
 
    MSG_WriteByte (&cls.netchan.message, clc_stringcmd);
    SZ_Print (&cls.netchan.message, cmd);
    if (Cmd_Argc() > 1)
    {
        SZ_Print (&cls.netchan.message, " ");
        SZ_Print (&cls.netchan.message, Cmd_Args());
    }
}
 
void CL_Setenv_f( void )
{
    int argc = Cmd_Argc();
 
    if ( argc > 2 )
    {
        char buffer[1000];
        int i;
 
        strcpy( buffer, Cmd_Argv(1) );
        strcat( buffer, "=" );
 
        for ( i = 2; i < argc; i++ )
        {
            strcat( buffer, Cmd_Argv( i ) );
            strcat( buffer, " " );
        }
 
        putenv( buffer );
    }
    else if ( argc == 2 )
    {
        char *env = getenv( Cmd_Argv(1) );
 
        if ( env )
        {
            Com_Printf( "%s=%s\n", Cmd_Argv(1), env );
        }
        else
        {
            Com_Printf( "%s undefined\n", Cmd_Argv(1), env );
        }
    }
}
 
 
/*
==================
CL_ForwardToServer_f
==================
*/
void CL_ForwardToServer_f (void)
{
    if (cls.state != ca_connected && cls.state != ca_active)
    {
        Com_Printf ("Can't \"%s\", not connected\n", Cmd_Argv(0));
        return;
    }
    
    // don't forward the first argument
    if (Cmd_Argc() > 1)
    {
        MSG_WriteByte (&cls.netchan.message, clc_stringcmd);
        SZ_Print (&cls.netchan.message, Cmd_Args());
    }
}
 
 
/*
==================
CL_Pause_f
==================
*/
void CL_Pause_f (void)
{
    // never pause in multiplayer
    if (Cvar_VariableValue ("maxclients") > 1 || !Com_ServerState ())
    {
        Cvar_SetValue ("paused", 0);
        return;
    }
 
    Cvar_SetValue ("paused", !cl_paused->value);
}
 
/*
==================
CL_Quit_f
==================
*/
void CL_Quit_f (void)
{
    CL_Disconnect ();
    Com_Quit ();
}
 
/*
================
CL_Drop
 
Called after an ERR_DROP was thrown
================
*/
void CL_Drop (void)
{
    if (cls.state == ca_uninitialized)
        return;
    if (cls.state == ca_disconnected)
        return;
 
    CL_Disconnect ();
 
    // drop loading plaque unless this is the initial game start
    if (cls.disable_servercount != -1)
        SCR_EndLoadingPlaque ();    // get rid of loading plaque
}
 
 
/*
=======================
CL_SendConnectPacket
 
We have gotten a challenge from the server, so try and
connect.
======================
*/
void CL_SendConnectPacket (void)
{
    netadr_t    adr;
    int     port;
 
        memset(&adr, 0, sizeof(adr));
        
    if (!NET_StringToAdr (cls.servername, &adr))
    {
        Com_Printf ("Bad server address\n");
        cls.connect_time = 0;
        return;
    }
    if (adr.port == 0)
        adr.port = BigShort (PORT_SERVER);
 
    port = Cvar_VariableValue ("qport");
    userinfo_modified = false;
 
    Netchan_OutOfBandPrint (NS_CLIENT, adr, "connect %i %i %i \"%s\"\n",
        PROTOCOL_VERSION, port, cls.challenge, Cvar_Userinfo() );
}
 
/*
=================
CL_CheckForResend
 
Resend a connect message if the last one has timed out
=================
*/
void CL_CheckForResend (void)
{
    netadr_t    adr;
 
    // if the local server is running and we aren't
    // then connect
    if (cls.state == ca_disconnected && Com_ServerState() )
    {
        cls.state = ca_connecting;
        strncpy (cls.servername, "localhost", sizeof(cls.servername)-1);
        // we don't need a challenge on the localhost
        CL_SendConnectPacket ();
        return;
//      cls.connect_time = -99999;  // CL_CheckForResend() will fire immediately
    }
 
    // resend if we haven't gotten a reply yet
    if (cls.state != ca_connecting)
        return;
 
    if (cls.realtime - cls.connect_time < 3000)
        return;
 
    if (!NET_StringToAdr (cls.servername, &adr))
    {
        Com_Printf ("Bad server address\n");
        cls.state = ca_disconnected;
        return;
    }
    if (adr.port == 0)
        adr.port = BigShort (PORT_SERVER);
 
    cls.connect_time = cls.realtime;    // for retransmit requests
 
    Com_Printf ("Connecting to %s...\n", cls.servername);
 
    Netchan_OutOfBandPrint (NS_CLIENT, adr, "getchallenge\n");
}
 
 
/*
================
CL_Connect_f
 
================
*/
void CL_Connect_f (void)
{
    char    *server;
 
    if (Cmd_Argc() != 2)
    {
        Com_Printf ("usage: connect <server>\n");
        return; 
    }
    
    if (Com_ServerState ())
    {   // if running a local server, kill it and reissue
        SV_Shutdown (va("Server quit\n", msg), false);
    }
    else
    {
        CL_Disconnect ();
    }
 
    server = Cmd_Argv (1);
 
    NET_Config (true);      // allow remote
 
    CL_Disconnect ();
 
    cls.state = ca_connecting;
    strncpy (cls.servername, server, sizeof(cls.servername)-1);
    cls.connect_time = -99999;  // CL_CheckForResend() will fire immediately
}
 
 
/*
=====================
CL_Rcon_f
 
  Send the rest of the command line over as
  an unconnected command.
=====================
*/
void CL_Rcon_f (void)
{
    char    message[1024];
    int     i;
    netadr_t    to;
 
    if (!rcon_client_password->string)
    {
        Com_Printf ("You must set 'rcon_password' before\n"
                    "issuing an rcon command.\n");
        return;
    }
 
    memset(&to, 0, sizeof(to));
    message[0] = (char)255;
    message[1] = (char)255;
    message[2] = (char)255;
    message[3] = (char)255;
    message[4] = 0;
 
    NET_Config (true);      // allow remote
 
    strcat (message, "rcon ");
 
    strcat (message, rcon_client_password->string);
    strcat (message, " ");
 
    for (i=1 ; i<Cmd_Argc() ; i++)
    {
        strcat (message, Cmd_Argv(i));
        strcat (message, " ");
    }
 
    if (cls.state >= ca_connected)
        to = cls.netchan.remote_address;
    else
    {
        if (!strlen(rcon_address->string))
        {
            Com_Printf ("You must either be connected,\n"
                        "or set the 'rcon_address' cvar\n"
                        "to issue rcon commands\n");
 
            return;
        }
        NET_StringToAdr (rcon_address->string, &to);
        if (to.port == 0)
            to.port = BigShort (PORT_SERVER);
    }
    
    NET_SendPacket (NS_CLIENT, strlen(message)+1, message, to);
}
 
 
/*
=====================
CL_ClearState
 
=====================
*/
void CL_ClearState (void)
{
    S_StopAllSounds ();
    CL_ClearEffects ();
    CL_ClearTEnts ();
 
// wipe the entire cl structure
    memset (&cl, 0, sizeof(cl));
    memset (&cl_entities, 0, sizeof(cl_entities));
 
    SZ_Clear (&cls.netchan.message);
 
}
 
/*
=====================
CL_Disconnect
 
Goes from a connected state to full screen console state
Sends a disconnect message to the server
This is also called on Com_Error, so it shouldn't cause any errors
=====================
*/
void CL_Disconnect (void)
{
    byte    final[32];
 
    if (cls.state == ca_disconnected)
        return;
 
    if (cl_timedemo && cl_timedemo->value)
    {
        int time;
        
        time = Sys_Milliseconds () - cl.timedemo_start;
        if (time > 0)
            Com_Printf ("%i frames, %3.1f seconds: %3.1f fps\n", cl.timedemo_frames,
            time/1000.0, cl.timedemo_frames*1000.0 / time);
    }
 
    VectorClear (cl.refdef.blend);
    re.CinematicSetPalette(NULL);
 
    M_ForceMenuOff ();
 
    cls.connect_time = 0;
 
    SCR_StopCinematic ();
 
    if (cls.demorecording)
        CL_Stop_f ();
 
    // send a disconnect message to the server
    final[0] = clc_stringcmd;
    strcpy ((char *)final+1, "disconnect");
    Netchan_Transmit (&cls.netchan, strlen((char *)final), final);
    Netchan_Transmit (&cls.netchan, strlen((char *)final), final);
    Netchan_Transmit (&cls.netchan, strlen((char *)final), final);
 
    CL_ClearState ();
 
    // stop download
    if (cls.download) {
        fclose(cls.download);
        cls.download = NULL;
    }
 
    cls.state = ca_disconnected;
}
 
void CL_Disconnect_f (void)
{
    Com_Error (ERR_DROP, "Disconnected from server");
}
 
 
/*
====================
CL_Packet_f
 
packet <destination> <contents>
 
Contents allows \n escape character
====================
*/
void CL_Packet_f (void)
{
    char    send[2048];
    int     i, l;
    char    *in, *out;
    netadr_t    adr;
 
    if (Cmd_Argc() != 3)
    {
        Com_Printf ("packet <destination> <contents>\n");
        return;
    }
 
    NET_Config (true);      // allow remote
 
    if (!NET_StringToAdr (Cmd_Argv(1), &adr))
    {
        Com_Printf ("Bad address\n");
        return;
    }
    if (!adr.port)
        adr.port = BigShort (PORT_SERVER);
 
    in = Cmd_Argv(2);
    out = send+4;
    send[0] = send[1] = send[2] = send[3] = (char)0xff;
 
    l = strlen (in);
    for (i=0 ; i<l ; i++)
    {
        if (in[i] == '\\' && in[i+1] == 'n')
        {
            *out++ = '\n';
            i++;
        }
        else
            *out++ = in[i];
    }
    *out = 0;
 
    NET_SendPacket (NS_CLIENT, out-send, send, adr);
}
 
/*
=================
CL_Changing_f
 
Just sent as a hint to the client that they should
drop to full console
=================
*/
void CL_Changing_f (void)
{
    //ZOID
    //if we are downloading, we don't change!  This so we don't suddenly stop downloading a map
    if (cls.download)
        return;
 
    SCR_BeginLoadingPlaque ();
    cls.state = ca_connected;   // not active anymore, but not disconnected
    Com_Printf ("\nChanging map...\n");
}
 
 
/*
=================
CL_Reconnect_f
 
The server is changing levels
=================
*/
void CL_Reconnect_f (void)
{
    //ZOID
    //if we are downloading, we don't change!  This so we don't suddenly stop downloading a map
    if (cls.download)
        return;
 
    S_StopAllSounds ();
    if (cls.state == ca_connected) {
        Com_Printf ("reconnecting...\n");
        cls.state = ca_connected;
        MSG_WriteChar (&cls.netchan.message, clc_stringcmd);
        MSG_WriteString (&cls.netchan.message, "new");      
        return;
    }
 
    if (*cls.servername) {
        if (cls.state >= ca_connected) {
            CL_Disconnect();
            cls.connect_time = cls.realtime - 1500;
        } else
            cls.connect_time = -99999; // fire immediately
 
        cls.state = ca_connecting;
        Com_Printf ("reconnecting...\n");
    }
}
 
/*
=================
CL_ParseStatusMessage
 
Handle a reply from a ping
=================
*/
void CL_ParseStatusMessage (void)
{
    char    *s;
 
    s = MSG_ReadString(&net_message);
 
    Com_Printf ("%s\n", s);
    M_AddToServerList (net_from, s);
}
 
 
/*
=================
CL_PingServers_f
=================
*/
void CL_PingServers_f (void)
{
    int         i;
    netadr_t    adr;
    char        name[32];
    char        *adrstring;
    cvar_t      *noudp;
    cvar_t      *noipx;
 
    NET_Config (true);      // allow remote
 
    // send a broadcast packet
    Com_Printf ("pinging broadcast...\n");
 
    noudp = Cvar_Get ("noudp", "0", CVAR_NOSET);
    if (!noudp->value)
    {
        adr.type = NA_BROADCAST;
        adr.port = BigShort(PORT_SERVER);
        Netchan_OutOfBandPrint (NS_CLIENT, adr, va("info %i", PROTOCOL_VERSION));
#ifdef HAVE_IPV6
                Com_Printf ("pinging multicast...\n");
        adr.type = NA_MULTICAST6;
        adr.port = BigShort(PORT_SERVER);
        Netchan_OutOfBandPrint (NS_CLIENT, adr, va("info %i", PROTOCOL_VERSION));
#endif                
    }
 
    noipx = Cvar_Get ("noipx", "0", CVAR_NOSET);
    if (!noipx->value)
    {
        adr.type = NA_BROADCAST_IPX;
        adr.port = BigShort(PORT_SERVER);
        Netchan_OutOfBandPrint (NS_CLIENT, adr, va("info %i", PROTOCOL_VERSION));
    }
 
    // send a packet to each address book entry
    for (i=0 ; i<16 ; i++)
    {
        Com_sprintf (name, sizeof(name), "adr%i", i);
        adrstring = Cvar_VariableString (name);
        if (!adrstring || !adrstring[0])
            continue;
 
        Com_Printf ("pinging %s...\n", adrstring);
        if (!NET_StringToAdr (adrstring, &adr))
        {
            Com_Printf ("Bad address: %s\n", adrstring);
            continue;
        }
        if (!adr.port)
            adr.port = BigShort(PORT_SERVER);
        Netchan_OutOfBandPrint (NS_CLIENT, adr, va("info %i", PROTOCOL_VERSION));
    }
}
 
 
/*
=================
CL_Skins_f
 
Load or download any custom player skins and models
=================
*/
void CL_Skins_f (void)
{
    int     i;
 
    for (i=0 ; i<MAX_CLIENTS ; i++)
    {
        if (!cl.configstrings[CS_PLAYERSKINS+i][0])
            continue;
        Com_Printf ("client %i: %s\n", i, cl.configstrings[CS_PLAYERSKINS+i]); 
        SCR_UpdateScreen ();
        Sys_SendKeyEvents ();   // pump message loop
        CL_ParseClientinfo (i);
    }
}
 
 
/*
=================
CL_ConnectionlessPacket
 
Responses to broadcasts, etc
=================
*/
void CL_ConnectionlessPacket (void)
{
    char    *s;
    char    *c;
    
    MSG_BeginReading (&net_message);
    MSG_ReadLong (&net_message);    // skip the -1
 
    s = MSG_ReadStringLine (&net_message);
 
    Cmd_TokenizeString (s, false);
 
    c = Cmd_Argv(0);
 
    Com_Printf ("%s: %s\n", NET_AdrToString (net_from), c);
 
    // server connection
    if (!strcmp(c, "client_connect"))
    {
        if (cls.state == ca_connected)
        {
            Com_Printf ("Dup connect received.  Ignored.\n");
            return;
        }
        Netchan_Setup (NS_CLIENT, &cls.netchan, net_from, cls.quakePort);
        MSG_WriteChar (&cls.netchan.message, clc_stringcmd);
        MSG_WriteString (&cls.netchan.message, "new");  
        cls.state = ca_connected;
        return;
    }
 
    // server responding to a status broadcast
    if (!strcmp(c, "info"))
    {
        CL_ParseStatusMessage ();
        return;
    }
 
    // remote command from gui front end
    if (!strcmp(c, "cmd"))
    {
        if (!NET_IsLocalAddress(net_from))
        {
            Com_Printf ("Command packet from remote host.  Ignored.\n");
            return;
        }
        Sys_AppActivate ();
        s = MSG_ReadString (&net_message);
        Cbuf_AddText (s);
        Cbuf_AddText ("\n");
        return;
    }
    // print command from somewhere
    if (!strcmp(c, "print"))
    {
        s = MSG_ReadString (&net_message);
        Com_Printf ("%s", s);
        return;
    }
 
    // ping from somewhere
    if (!strcmp(c, "ping"))
    {
        Netchan_OutOfBandPrint (NS_CLIENT, net_from, "ack");
        return;
    }
 
    // challenge from the server we are connecting to
    if (!strcmp(c, "challenge"))
    {
        cls.challenge = atoi(Cmd_Argv(1));
        CL_SendConnectPacket ();
        return;
    }
 
    // echo request from server
    if (!strcmp(c, "echo"))
    {
        Netchan_OutOfBandPrint (NS_CLIENT, net_from, "%s", Cmd_Argv(1) );
        return;
    }
 
    Com_Printf ("Unknown command.\n");
}
 
 
/*
=================
CL_DumpPackets
 
A vain attempt to help bad TCP stacks that cause problems
when they overflow
=================
*/
void CL_DumpPackets (void)
{
    while (NET_GetPacket (NS_CLIENT, &net_from, &net_message))
    {
        Com_Printf ("dumnping a packet\n");
    }
}
 
/*
=================
CL_ReadPackets
=================
*/
void CL_ReadPackets (void)
{
    while (NET_GetPacket (NS_CLIENT, &net_from, &net_message))
    {
//  Com_Printf ("packet\n");
        //
        // remote command packet
        //
        if (*(int *)net_message.data == -1)
        {
            CL_ConnectionlessPacket ();
            continue;
        }
 
        if (cls.state == ca_disconnected || cls.state == ca_connecting)
            continue;       // dump it if not connected
 
        if (net_message.cursize < 8)
        {
            Com_Printf ("%s: Runt packet\n",NET_AdrToString(net_from));
            continue;
        }
 
        //
        // packet from server
        //
        if (!NET_CompareAdr (net_from, cls.netchan.remote_address))
        {
            Com_DPrintf ("%s:sequenced packet without connection\n"
                ,NET_AdrToString(net_from));
            continue;
        }
        if (!Netchan_Process(&cls.netchan, &net_message))
            continue;       // wasn't accepted for some reason
        CL_ParseServerMessage ();
    }
 
    //
    // check timeout
    //
    if (cls.state >= ca_connected
     && cls.realtime - cls.netchan.last_received > cl_timeout->value*1000)
    {
        if (++cl.timeoutcount > 5)  // timeoutcount saves debugger
        {
            Com_Printf ("\nServer connection timed out.\n");
            CL_Disconnect ();
            return;
        }
    }
    else
        cl.timeoutcount = 0;
    
}
 
 
//=============================================================================
 
/*
==============
CL_FixUpGender_f
==============
*/
void CL_FixUpGender(void)
{
    char *p;
    char sk[80];
 
    if (gender_auto->value) {
 
        if (gender->modified) {
            // was set directly, don't override the user
            gender->modified = false;
            return;
        }
 
        strncpy(sk, skin->string, sizeof(sk) - 1);
        if ((p = strchr(sk, '/')) != NULL)
            *p = 0;
        if (Q_stricmp(sk, "male") == 0 || Q_stricmp(sk, "cyborg") == 0)
            Cvar_Set ("gender", "male");
        else if (Q_stricmp(sk, "female") == 0 || Q_stricmp(sk, "crackhor") == 0)
            Cvar_Set ("gender", "female");
        else
            Cvar_Set ("gender", "none");
        gender->modified = false;
    }
}
 
/*
==============
CL_Userinfo_f
==============
*/
void CL_Userinfo_f (void)
{
    Com_Printf ("User info settings:\n");
    Info_Print (Cvar_Userinfo());
}
 
/*
=================
CL_Snd_Restart_f
 
Restart the sound subsystem so it can pick up
new parameters and flush all sounds
=================
*/
void CL_Snd_Restart_f (void)
{
    S_Shutdown ();
    S_Init ();
    CL_RegisterSounds ();
}
 
int precache_check; // for autodownload of precache items
int precache_spawncount;
int precache_tex;
int precache_model_skin;
 
byte *precache_model; // used for skin checking in alias models
 
#define PLAYER_MULT 5
 
// ENV_CNT is map load, ENV_CNT+1 is first env map
#define ENV_CNT (CS_PLAYERSKINS + MAX_CLIENTS * PLAYER_MULT)
#define TEXTURE_CNT (ENV_CNT+13)
 
static const char *env_suf[6] = {"rt", "bk", "lf", "ft", "up", "dn"};
 
void CL_RequestNextDownload (void)
{
    unsigned    map_checksum;       // for detecting cheater maps
    char fn[MAX_OSPATH];
    dmdl_t *pheader;
 
    if (cls.state != ca_connected)
        return;
 
    if (!allow_download->value && precache_check < ENV_CNT)
        precache_check = ENV_CNT;
 
//ZOID
    if (precache_check == CS_MODELS) { // confirm map
        precache_check = CS_MODELS+2; // 0 isn't used
        if (allow_download_maps->value)
            if (!CL_CheckOrDownloadFile(cl.configstrings[CS_MODELS+1]))
                return; // started a download
    }
    if (precache_check >= CS_MODELS && precache_check < CS_MODELS+MAX_MODELS) {
        if (allow_download_models->value) {
            while (precache_check < CS_MODELS+MAX_MODELS &&
                cl.configstrings[precache_check][0]) {
                if (cl.configstrings[precache_check][0] == '*' ||
                    cl.configstrings[precache_check][0] == '#') {
                    precache_check++;
                    continue;
                }
                if (precache_model_skin == 0) {
                    if (!CL_CheckOrDownloadFile(cl.configstrings[precache_check])) {
                        precache_model_skin = 1;
                        return; // started a download
                    }
                    precache_model_skin = 1;
                }
 
                // checking for skins in the model
                if (!precache_model) {
 
                    FS_LoadFile (cl.configstrings[precache_check], (void **)&precache_model);
                    if (!precache_model) {
                        precache_model_skin = 0;
                        precache_check++;
                        continue; // couldn't load it
                    }
                    if (LittleLong(*(unsigned *)precache_model) != IDALIASHEADER) {
                        // not an alias model
                        FS_FreeFile(precache_model);
                        precache_model = 0;
                        precache_model_skin = 0;
                        precache_check++;
                        continue;
                    }
                    pheader = (dmdl_t *)precache_model;
                    if (LittleLong (pheader->version) != ALIAS_VERSION) {
                        precache_check++;
                        precache_model_skin = 0;
                        continue; // couldn't load it
                    }
                }
 
                pheader = (dmdl_t *)precache_model;
 
                while (precache_model_skin - 1 < LittleLong(pheader->num_skins)) {
                    if (!CL_CheckOrDownloadFile((char *)precache_model +
                        LittleLong(pheader->ofs_skins) + 
                        (precache_model_skin - 1)*MAX_SKINNAME)) {
                        precache_model_skin++;
                        return; // started a download
                    }
                    precache_model_skin++;
                }
                if (precache_model) { 
                    FS_FreeFile(precache_model);
                    precache_model = 0;
                }
                precache_model_skin = 0;
                precache_check++;
            }
        }
        precache_check = CS_SOUNDS;
    }
    if (precache_check >= CS_SOUNDS && precache_check < CS_SOUNDS+MAX_SOUNDS) { 
        if (allow_download_sounds->value) {
            if (precache_check == CS_SOUNDS)
                precache_check++; // zero is blank
            while (precache_check < CS_SOUNDS+MAX_SOUNDS &&
                cl.configstrings[precache_check][0]) {
                if (cl.configstrings[precache_check][0] == '*') {
                    precache_check++;
                    continue;
                }
                Com_sprintf(fn, sizeof(fn), "sound/%s", cl.configstrings[precache_check++]);
                if (!CL_CheckOrDownloadFile(fn))
                    return; // started a download
            }
        }
        precache_check = CS_IMAGES;
    }
    if (precache_check >= CS_IMAGES && precache_check < CS_IMAGES+MAX_IMAGES) {
        if (precache_check == CS_IMAGES)
            precache_check++; // zero is blank
        while (precache_check < CS_IMAGES+MAX_IMAGES &&
            cl.configstrings[precache_check][0]) {
            Com_sprintf(fn, sizeof(fn), "pics/%s.pcx", cl.configstrings[precache_check++]);
            if (!CL_CheckOrDownloadFile(fn))
                return; // started a download
        }
        precache_check = CS_PLAYERSKINS;
    }
    // skins are special, since a player has three things to download:
    // model, weapon model and skin
    // so precache_check is now *3
    if (precache_check >= CS_PLAYERSKINS && precache_check < CS_PLAYERSKINS + MAX_CLIENTS * PLAYER_MULT) {
        if (allow_download_players->value) {
            while (precache_check < CS_PLAYERSKINS + MAX_CLIENTS * PLAYER_MULT) {
                int i, n;
                char model[MAX_QPATH], skin[MAX_QPATH], *p;
 
                i = (precache_check - CS_PLAYERSKINS)/PLAYER_MULT;
                n = (precache_check - CS_PLAYERSKINS)%PLAYER_MULT;
 
                if (!cl.configstrings[CS_PLAYERSKINS+i][0]) {
                    precache_check = CS_PLAYERSKINS + (i + 1) * PLAYER_MULT;
                    continue;
                }
 
                if ((p = strchr(cl.configstrings[CS_PLAYERSKINS+i], '\\')) != NULL)
                    p++;
                else
                    p = cl.configstrings[CS_PLAYERSKINS+i];
                strcpy(model, p);
                p = strchr(model, '/');
                if (!p)
                    p = strchr(model, '\\');
                if (p) {
                    *p++ = 0;
                    strcpy(skin, p);
                } else
                    *skin = 0;
 
                switch (n) {
                case 0: // model
                    Com_sprintf(fn, sizeof(fn), "players/%s/tris.md2", model);
                    if (!CL_CheckOrDownloadFile(fn)) {
                        precache_check = CS_PLAYERSKINS + i * PLAYER_MULT + 1;
                        return; // started a download
                    }
                    n++;
                    /*FALL THROUGH*/
 
                case 1: // weapon model
                    Com_sprintf(fn, sizeof(fn), "players/%s/weapon.md2", model);
                    if (!CL_CheckOrDownloadFile(fn)) {
                        precache_check = CS_PLAYERSKINS + i * PLAYER_MULT + 2;
                        return; // started a download
                    }
                    n++;
                    /*FALL THROUGH*/
 
                case 2: // weapon skin
                    Com_sprintf(fn, sizeof(fn), "players/%s/weapon.pcx", model);
                    if (!CL_CheckOrDownloadFile(fn)) {
                        precache_check = CS_PLAYERSKINS + i * PLAYER_MULT + 3;
                        return; // started a download
                    }
                    n++;
                    /*FALL THROUGH*/
 
                case 3: // skin
                    Com_sprintf(fn, sizeof(fn), "players/%s/%s.pcx", model, skin);
                    if (!CL_CheckOrDownloadFile(fn)) {
                        precache_check = CS_PLAYERSKINS + i * PLAYER_MULT + 4;
                        return; // started a download
                    }
                    n++;
                    /*FALL THROUGH*/
 
                case 4: // skin_i
                    Com_sprintf(fn, sizeof(fn), "players/%s/%s_i.pcx", model, skin);
                    if (!CL_CheckOrDownloadFile(fn)) {
                        precache_check = CS_PLAYERSKINS + i * PLAYER_MULT + 5;
                        return; // started a download
                    }
                    // move on to next model
                    precache_check = CS_PLAYERSKINS + (i + 1) * PLAYER_MULT;
                }
            }
        }
        // precache phase completed
        precache_check = ENV_CNT;
    }
 
    if (precache_check == ENV_CNT) {
        precache_check = ENV_CNT + 1;
 
        CM_LoadMap (cl.configstrings[CS_MODELS+1], true, &map_checksum);
 
        if (map_checksum != atoi(cl.configstrings[CS_MAPCHECKSUM])) {
            Com_Error (ERR_DROP, "Local map version differs from server: %i != '%s'\n",
                map_checksum, cl.configstrings[CS_MAPCHECKSUM]);
            return;
        }
    }
 
    if (precache_check > ENV_CNT && precache_check < TEXTURE_CNT) {
        if (allow_download->value && allow_download_maps->value) {
            while (precache_check < TEXTURE_CNT) {
                int n = precache_check++ - ENV_CNT - 1;
 
                if (n & 1)
                    Com_sprintf(fn, sizeof(fn), "env/%s%s.pcx", 
                        cl.configstrings[CS_SKY], env_suf[n/2]);
                else
                    Com_sprintf(fn, sizeof(fn), "env/%s%s.tga", 
                        cl.configstrings[CS_SKY], env_suf[n/2]);
                if (!CL_CheckOrDownloadFile(fn))
                    return; // started a download
            }
        }
        precache_check = TEXTURE_CNT;
    }
 
    if (precache_check == TEXTURE_CNT) {
        precache_check = TEXTURE_CNT+1;
        precache_tex = 0;
    }
 
    // confirm existance of textures, download any that don't exist
    if (precache_check == TEXTURE_CNT+1) {
        // from qcommon/cmodel.c
        extern int          numtexinfo;
        extern mapsurface_t map_surfaces[];
 
        if (allow_download->value && allow_download_maps->value) {
            while (precache_tex < numtexinfo) {
                char fn[MAX_OSPATH];
 
                sprintf(fn, "textures/%s.wal", map_surfaces[precache_tex++].rname);
                if (!CL_CheckOrDownloadFile(fn))
                    return; // started a download
            }
        }
        precache_check = TEXTURE_CNT+999;
    }
 
//ZOID
    CL_RegisterSounds ();
    CL_PrepRefresh ();
 
    MSG_WriteByte (&cls.netchan.message, clc_stringcmd);
    MSG_WriteString (&cls.netchan.message, va("begin %i\n", precache_spawncount) );
}
 
/*
=================
CL_Precache_f
 
The server will send this command right
before allowing the client into the server
=================
*/
void CL_Precache_f (void)
{
    //Yet another hack to let old demos work
    //the old precache sequence
    if (Cmd_Argc() < 2) {
        unsigned    map_checksum;       // for detecting cheater maps
 
        CM_LoadMap (cl.configstrings[CS_MODELS+1], true, &map_checksum);
        CL_RegisterSounds ();
        CL_PrepRefresh ();
        return;
    }
 
    precache_check = CS_MODELS;
    precache_spawncount = atoi(Cmd_Argv(1));
    precache_model = 0;
    precache_model_skin = 0;
 
    CL_RequestNextDownload();
}
 
 
/*
=================
CL_InitLocal
=================
*/
void CL_InitLocal (void)
{
    cls.state = ca_disconnected;
    cls.realtime = Sys_Milliseconds ();
 
    CL_InitInput ();
 
    adr0 = Cvar_Get( "adr0", "", CVAR_ARCHIVE );
    adr1 = Cvar_Get( "adr1", "", CVAR_ARCHIVE );
    adr2 = Cvar_Get( "adr2", "", CVAR_ARCHIVE );
    adr3 = Cvar_Get( "adr3", "", CVAR_ARCHIVE );
    adr4 = Cvar_Get( "adr4", "", CVAR_ARCHIVE );
    adr5 = Cvar_Get( "adr5", "", CVAR_ARCHIVE );
    adr6 = Cvar_Get( "adr6", "", CVAR_ARCHIVE );
    adr7 = Cvar_Get( "adr7", "", CVAR_ARCHIVE );
    adr8 = Cvar_Get( "adr8", "", CVAR_ARCHIVE );
 
//
// register our variables
//
    cl_stereo_separation = Cvar_Get( "cl_stereo_separation", "0.4", CVAR_ARCHIVE );
    cl_stereo = Cvar_Get( "cl_stereo", "0", 0 );
 
    cl_add_blend = Cvar_Get ("cl_blend", "1", 0);
    cl_add_lights = Cvar_Get ("cl_lights", "1", 0);
    cl_add_particles = Cvar_Get ("cl_particles", "1", 0);
    cl_add_entities = Cvar_Get ("cl_entities", "1", 0);
    cl_gun = Cvar_Get ("cl_gun", "1", 0);
    cl_footsteps = Cvar_Get ("cl_footsteps", "1", 0);
    cl_noskins = Cvar_Get ("cl_noskins", "0", 0);
    cl_autoskins = Cvar_Get ("cl_autoskins", "0", 0);
    cl_predict = Cvar_Get ("cl_predict", "1", 0);
//  cl_minfps = Cvar_Get ("cl_minfps", "5", 0);
    cl_maxfps = Cvar_Get ("cl_maxfps", "90", 0);
    cl_drawfps = Cvar_Get("cl_drawfps","0",CVAR_ARCHIVE); // FPS hack
 
#ifdef QMAX
    cl_blood = Cvar_Get ("cl_blood", "1", 0);
    
    //psychospaz -- railgun fun
    cl_railred = Cvar_Get ("cl_railred", "20", CVAR_ARCHIVE);
    cl_railgreen = Cvar_Get ("cl_railgreen", "50", CVAR_ARCHIVE);
    cl_railblue = Cvar_Get ("cl_railblue", "175", CVAR_ARCHIVE);
    cl_railtype = Cvar_Get ("cl_railtype", "1", CVAR_ARCHIVE);
    //3d camera
    cl_3dcam = Cvar_Get ("cl_3dcam", "0", CVAR_ARCHIVE);
    cl_3dcam_angle = Cvar_Get ("cl_3dcam_angle", "0", CVAR_ARCHIVE);
    cl_3dcam_dist = Cvar_Get ("cl_3dcam_dist", "50", CVAR_ARCHIVE);
    cl_3dcam_alpha = Cvar_Get ("cl_3dcam_alpha", "1", CVAR_ARCHIVE);
    cl_3dcam_chase = Cvar_Get ("cl_3dcam_chase", "1", CVAR_ARCHIVE);
    cl_3dcam_adjust = Cvar_Get ("cl_3dcam_adjust", "1", CVAR_ARCHIVE);
    //cl_playermodel_default = Cvar_Get ("cl_playermodel_default", DEFAULTSKIN, CVAR_USERINFO);
#endif
 
    cl_upspeed = Cvar_Get ("cl_upspeed", "200", 0);
    cl_forwardspeed = Cvar_Get ("cl_forwardspeed", "200", 0);
    cl_sidespeed = Cvar_Get ("cl_sidespeed", "200", 0);
    cl_yawspeed = Cvar_Get ("cl_yawspeed", "140", 0);
    cl_pitchspeed = Cvar_Get ("cl_pitchspeed", "150", 0);
    cl_anglespeedkey = Cvar_Get ("cl_anglespeedkey", "1.5", 0);
 
    cl_run = Cvar_Get ("cl_run", "0", CVAR_ARCHIVE);
    freelook = Cvar_Get( "freelook", "0", CVAR_ARCHIVE );
    lookspring = Cvar_Get ("lookspring", "0", CVAR_ARCHIVE);
    lookstrafe = Cvar_Get ("lookstrafe", "0", CVAR_ARCHIVE);
    sensitivity = Cvar_Get ("sensitivity", "3", CVAR_ARCHIVE);
 
    m_pitch = Cvar_Get ("m_pitch", "0.022", CVAR_ARCHIVE);
    m_yaw = Cvar_Get ("m_yaw", "0.022", 0);
    m_forward = Cvar_Get ("m_forward", "1", 0);
    m_side = Cvar_Get ("m_side", "1", 0);
 
    cl_shownet = Cvar_Get ("cl_shownet", "0", 0);
    cl_showmiss = Cvar_Get ("cl_showmiss", "0", 0);
    cl_showclamp = Cvar_Get ("showclamp", "0", 0);
    cl_timeout = Cvar_Get ("cl_timeout", "120", 0);
    cl_paused = Cvar_Get ("paused", "0", 0);
    cl_timedemo = Cvar_Get ("timedemo", "0", 0);
 
    rcon_client_password = Cvar_Get ("rcon_password", "", 0);
    rcon_address = Cvar_Get ("rcon_address", "", 0);
 
    cl_lightlevel = Cvar_Get ("r_lightlevel", "0", 0);
 
    //
    // userinfo
    //
    info_password = Cvar_Get ("password", "", CVAR_USERINFO);
    info_spectator = Cvar_Get ("spectator", "0", CVAR_USERINFO);
    name = Cvar_Get ("name", "unnamed", CVAR_USERINFO | CVAR_ARCHIVE);
    skin = Cvar_Get ("skin", "male/grunt", CVAR_USERINFO | CVAR_ARCHIVE);
    rate = Cvar_Get ("rate", "25000", CVAR_USERINFO | CVAR_ARCHIVE);    // FIXME
    msg = Cvar_Get ("msg", "1", CVAR_USERINFO | CVAR_ARCHIVE);
    hand = Cvar_Get ("hand", "0", CVAR_USERINFO | CVAR_ARCHIVE);
    fov = Cvar_Get ("fov", "90", CVAR_USERINFO | CVAR_ARCHIVE);
    gender = Cvar_Get ("gender", "male", CVAR_USERINFO | CVAR_ARCHIVE);
    gender_auto = Cvar_Get ("gender_auto", "1", CVAR_ARCHIVE);
    gender->modified = false; // clear this so we know when user sets it manually
 
    cl_vwep = Cvar_Get ("cl_vwep", "1", CVAR_ARCHIVE);
 
 
    //
    // register our commands
    //
    Cmd_AddCommand ("cmd", CL_ForwardToServer_f);
    Cmd_AddCommand ("pause", CL_Pause_f);
    Cmd_AddCommand ("pingservers", CL_PingServers_f);
    Cmd_AddCommand ("skins", CL_Skins_f);
 
    Cmd_AddCommand ("userinfo", CL_Userinfo_f);
    Cmd_AddCommand ("snd_restart", CL_Snd_Restart_f);
 
    Cmd_AddCommand ("changing", CL_Changing_f);
    Cmd_AddCommand ("disconnect", CL_Disconnect_f);
    Cmd_AddCommand ("record", CL_Record_f);
    Cmd_AddCommand ("stop", CL_Stop_f);
 
    Cmd_AddCommand ("quit", CL_Quit_f);
 
    Cmd_AddCommand ("connect", CL_Connect_f);
    Cmd_AddCommand ("reconnect", CL_Reconnect_f);
 
    Cmd_AddCommand ("rcon", CL_Rcon_f);
 
//  Cmd_AddCommand ("packet", CL_Packet_f); // this is dangerous to leave in
 
    Cmd_AddCommand ("setenv", CL_Setenv_f );
 
    Cmd_AddCommand ("precache", CL_Precache_f);
 
    Cmd_AddCommand ("download", CL_Download_f);
 
    //
    // forward to server commands
    //
    // the only thing this does is allow command completion
    // to work -- all unknown commands are automatically
    // forwarded to the server
    Cmd_AddCommand ("wave", NULL);
    Cmd_AddCommand ("inven", NULL);
    Cmd_AddCommand ("kill", NULL);
    Cmd_AddCommand ("use", NULL);
    Cmd_AddCommand ("drop", NULL);
    Cmd_AddCommand ("say", NULL);
    Cmd_AddCommand ("say_team", NULL);
    Cmd_AddCommand ("info", NULL);
    Cmd_AddCommand ("prog", NULL);
    Cmd_AddCommand ("give", NULL);
    Cmd_AddCommand ("god", NULL);
    Cmd_AddCommand ("notarget", NULL);
    Cmd_AddCommand ("noclip", NULL);
    Cmd_AddCommand ("invuse", NULL);
    Cmd_AddCommand ("invprev", NULL);
    Cmd_AddCommand ("invnext", NULL);
    Cmd_AddCommand ("invdrop", NULL);
    Cmd_AddCommand ("weapnext", NULL);
    Cmd_AddCommand ("weapprev", NULL);
}
 
 
 
/*
===============
CL_WriteConfiguration
 
Writes key bindings and archived cvars to config.cfg
===============
*/
void CL_WriteConfiguration (void)
{
    FILE    *f;
    char    path[MAX_QPATH];
 
    if (cls.state == ca_uninitialized)
        return;
 
    Com_sprintf (path, sizeof(path),"%s/config.cfg",FS_Gamedir());
    f = fopen (path, "w");
    if (!f)
    {
        Com_Printf ("Couldn't write config.cfg.\n");
        return;
    }
 
    fprintf (f, "// generated by quake, do not modify\n");
    Key_WriteBindings (f);
    fclose (f);
 
    Cvar_WriteVariables (path);
}
 
 
/*
==================
CL_FixCvarCheats
 
==================
*/
 
typedef struct
{
    char    *name;
    char    *value;
    cvar_t  *var;
} cheatvar_t;
 
cheatvar_t  cheatvars[] = {
    {"timescale", "1"},
    {"timedemo", "0"},
    {"r_drawworld", "1"},
    {"cl_testlights", "0"},
    {"r_fullbright", "0"},
    {"r_drawflat", "0"},
    {"paused", "0"},
    {"fixedtime", "0"},
    {"sw_draworder", "0"},
    {"gl_lightmap", "0"},
    {"gl_saturatelighting", "0"},
    {NULL, NULL}
};
 
int     numcheatvars;
 
void CL_FixCvarCheats (void)
{
    int         i;
    cheatvar_t  *var;
 
    if ( !strcmp(cl.configstrings[CS_MAXCLIENTS], "1") 
        || !cl.configstrings[CS_MAXCLIENTS][0] )
        return;     // single player can cheat
 
    // find all the cvars if we haven't done it yet
    if (!numcheatvars)
    {
        while (cheatvars[numcheatvars].name)
        {
            cheatvars[numcheatvars].var = Cvar_Get (cheatvars[numcheatvars].name,
                    cheatvars[numcheatvars].value, 0);
            numcheatvars++;
        }
    }
 
    // make sure they are all set to the proper values
    for (i=0, var = cheatvars ; i<numcheatvars ; i++, var++)
    {
        if ( strcmp (var->var->string, var->value) )
        {
            Cvar_Set (var->name, var->value);
        }
    }
}
 
//============================================================================
 
/*
==================
CL_SendCommand
 
==================
*/
void CL_SendCommand (void)
{
    // get new key events
    Sys_SendKeyEvents ();
 
    // allow mice or other external controllers to add commands
    IN_Commands ();
 
    // process console commands
    Cbuf_Execute ();
 
    // fix any cheating cvars
    CL_FixCvarCheats ();
 
    // send intentions now
    CL_SendCmd ();
 
    // resend a connection request if necessary
    CL_CheckForResend ();
}
 
 
/*
==================
CL_Frame
 
==================
*/
void CL_Frame (int msec)
{
    static int  extratime;
    static int  lasttimecalled;
 
    if (dedicated->value)
        return;
 
    extratime += msec;
 
    if (!cl_timedemo->value)
    {
        if (cls.state == ca_connected && extratime < 100)
            return;         // don't flood packets out while connecting
        if (extratime < 1000/cl_maxfps->value)
            return;         // framerate is too high
    }
 
    // let the mouse activate or deactivate
    IN_Frame ();
 
    // decide the simulation time
    cls.frametime = extratime/1000.0;
    cl.time += extratime;
    cls.realtime = curtime;
 
    extratime = 0;
#if 0
    if (cls.frametime > (1.0 / cl_minfps->value))
        cls.frametime = (1.0 / cl_minfps->value);
#else
    if (cls.frametime > (1.0 / 5))
        cls.frametime = (1.0 / 5);
#endif
 
    // if in the debugger last frame, don't timeout
    if (msec > 5000)
        cls.netchan.last_received = Sys_Milliseconds ();
 
    // fetch results from server
    CL_ReadPackets ();
 
    // send a new command message to the server
    CL_SendCommand ();
 
    // predict all unacknowledged movements
    CL_PredictMovement ();
 
    // allow rendering DLL change
    VID_CheckChanges ();
    if (!cl.refresh_prepped && cls.state == ca_active)
        CL_PrepRefresh ();
 
    // update the screen
    if (host_speeds->value)
        time_before_ref = Sys_Milliseconds ();
    SCR_UpdateScreen ();
    if (host_speeds->value)
        time_after_ref = Sys_Milliseconds ();
 
    // update audio
    S_Update (cl.refdef.vieworg, cl.v_forward, cl.v_right, cl.v_up);
    
    CDAudio_Update();
 
    // advance local effects for next frame
    CL_RunDLights ();
    CL_RunLightStyles ();
    SCR_RunCinematic ();
    SCR_RunConsole ();
 
    cls.framecount++;
 
    if ( log_stats->value )
    {
        if ( cls.state == ca_active )
        {
            if ( !lasttimecalled )
            {
                lasttimecalled = Sys_Milliseconds();
                if ( log_stats_file )
                    fprintf( log_stats_file, "0\n" );
            }
            else
            {
                int now = Sys_Milliseconds();
 
                if ( log_stats_file )
                    fprintf( log_stats_file, "%d\n", now - lasttimecalled );
                lasttimecalled = now;
            }
        }
    }
}
 
 
//============================================================================
 
/*
====================
CL_Init
====================
*/
void CL_Init (void)
{
    if (dedicated->value)
        return;     // nothing running on the client
 
    // all archived variables will now be loaded
 
    Con_Init ();    
#if defined __linux__ || defined __FreeBSD__ || defined __sgi
    S_Init ();  
    VID_Init ();
#else
    VID_Init ();
    S_Init ();  // sound must be initialized after window is created
#endif
    
    V_Init ();
    
    net_message.data = net_message_buffer;
    net_message.maxsize = sizeof(net_message_buffer);
 
    M_Init ();  
    
    SCR_Init ();
    cls.disable_screen = true;  // don't draw yet
 
    CDAudio_Init ();
    CL_InitLocal ();
    IN_Init ();
 
//  Cbuf_AddText ("exec autoexec.cfg\n");
    FS_ExecAutoexec ();
    Cbuf_Execute ();
 
}
 
 
/*
===============
CL_Shutdown
 
FIXME: this is a callback from Sys_Quit and Com_Error.  It would be better
to run quit through here before the final handoff to the sys code.
===============
*/
void CL_Shutdown(void)
{
    static qboolean isdown = false;
    
    if (isdown)
    {
        printf ("recursive shutdown\n");
        return;
    }
    isdown = true;
 
    CL_WriteConfiguration (); 
 
    CDAudio_Shutdown ();
    S_Shutdown();
    IN_Shutdown ();
    VID_Shutdown();
}