newtree/source/cl_parse.c
Bill Currie eae11661e4 strncat parameter audit. Unfortunatly, strncat is counter-intutite: the n in
strncat is not the maximum length of the destination string, but of the SOURCE
string, thus strncat (dest, src, sizeof (dest)) is incorrect. It should be
strncat (dest, src, sizeof (text) - strlen (dest)). Even then, no terminating
nul will be written if src is too long, but at least it won't crash the stack:)
2000-12-05 16:04:12 +00:00

1443 lines
31 KiB
C

/*
cl_parse.c
parse a message received from the server
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
$Id$
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "host.h"
#include "sys.h"
#include "client.h"
#include "cmd.h"
#include "screen.h"
#include "cdaudio.h"
#include "bothdefs.h"
#include "console.h"
#include "msg.h"
#include "va.h"
#include "pmove.h"
#include "sbar.h"
#include "teamplay.h"
#include "cl_parse.h"
#include "cl_main.h"
#include "skin.h"
#include "cl_ents.h"
#include "cl_input.h"
#include "view.h"
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
extern cvar_t *gl_flashblend;
extern cvar_t *cl_autoexec;
char *svc_strings[] =
{
"svc_bad",
"svc_nop",
"svc_disconnect",
"svc_updatestat",
"svc_version", // [long] server version
"svc_setview", // [short] entity number
"svc_sound", // <see code>
"svc_time", // [float] server time
"svc_print", // [string] null terminated string
"svc_stufftext", // [string] stuffed into client's console buffer
// the string should be \n terminated
"svc_setangle", // [vec3] set the view angle to this absolute value
"svc_serverdata", // [long] version ...
"svc_lightstyle", // [byte] [string]
"svc_updatename", // [byte] [string]
"svc_updatefrags", // [byte] [short]
"svc_clientdata", // <shortbits + data>
"svc_stopsound", // <see code>
"svc_updatecolors", // [byte] [byte]
"svc_particle", // [vec3] <variable>
"svc_damage", // [byte] impact [byte] blood [vec3] from
"svc_spawnstatic",
"OBSOLETE svc_spawnbinary",
"svc_spawnbaseline",
"svc_temp_entity", // <variable>
"svc_setpause",
"svc_signonnum",
"svc_centerprint",
"svc_killedmonster",
"svc_foundsecret",
"svc_spawnstaticsound",
"svc_intermission",
"svc_finale",
"svc_cdtrack",
"svc_sellscreen",
"svc_smallkick",
"svc_bigkick",
"svc_updateping",
"svc_updateentertime",
"svc_updatestatlong",
"svc_muzzleflash",
"svc_updateuserinfo",
"svc_download",
"svc_playerinfo",
"svc_nails",
"svc_choke",
"svc_modellist",
"svc_soundlist",
"svc_packetentities",
"svc_deltapacketentities",
"svc_maxspeed",
"svc_entgravity",
"svc_setinfo",
"svc_serverinfo",
"svc_updatepl",
"NEW PROTOCOL",
"NEW PROTOCOL",
"NEW PROTOCOL",
"NEW PROTOCOL",
"NEW PROTOCOL",
"NEW PROTOCOL",
"NEW PROTOCOL",
"NEW PROTOCOL",
"NEW PROTOCOL",
"NEW PROTOCOL",
"NEW PROTOCOL",
"NEW PROTOCOL",
"NEW PROTOCOL"
};
int oldparsecountmod;
int parsecountmod;
double parsecounttime;
int cl_spikeindex, cl_playerindex, cl_flagindex;
int cl_h_playerindex, cl_gib1index, cl_gib2index, cl_gib3index;
//=============================================================================
int packet_latency[NET_TIMINGS];
int CL_CalcNet (void)
{
int a, i;
frame_t *frame;
int lost;
for (i=cls.netchan.outgoing_sequence-UPDATE_BACKUP+1
; i <= cls.netchan.outgoing_sequence
; i++)
{
frame = &cl.frames[i&UPDATE_MASK];
if (frame->receivedtime == -1)
packet_latency[i&NET_TIMINGSMASK] = 9999; // dropped
else if (frame->receivedtime == -2)
packet_latency[i&NET_TIMINGSMASK] = 10000; // choked
else if (frame->invalid)
packet_latency[i&NET_TIMINGSMASK] = 9998; // invalid delta
else
packet_latency[i&NET_TIMINGSMASK] = (frame->receivedtime - frame->senttime)*20;
}
lost = 0;
for (a=0 ; a<NET_TIMINGS ; a++)
{
i = (cls.netchan.outgoing_sequence-a) & NET_TIMINGSMASK;
if (packet_latency[i] == 9999)
lost++;
}
return lost * 100 / NET_TIMINGS;
}
//=============================================================================
/*
===============
CL_CheckOrDownloadFile
Returns true if the file exists, otherwise it attempts
to start a download from the server.
===============
*/
qboolean CL_CheckOrDownloadFile (char *filename)
{
QFile *f;
if (strstr (filename, "..")) {
Con_Printf ("Refusing to download a path with ..\n");
return true;
}
if (!snd_initialized && strnequal ("sound/", filename, 6)) {
// don't bother downloading sownds if we can't play them
return true;
}
COM_FOpenFile (filename, &f);
if (f) { // it exists, no need to download
Qclose (f);
return true;
}
//ZOID - can't download when recording
if (cls.demorecording) {
Con_Printf("Unable to download %s in record mode.\n", cls.downloadname);
return true;
}
//ZOID - can't download when playback
if (cls.demoplayback)
return true;
strcpy (cls.downloadname, filename);
Con_Printf ("Downloading %s...\n", cls.downloadname);
// download to a temp name, and only rename
// to the real name when done, so if interrupted
// a runt file wont be left
COM_StripExtension (cls.downloadname, cls.downloadtempname);
strncat (cls.downloadtempname, ".tmp",
sizeof (cls.downloadtempname) - strlen (cls.downloadtempname));
MSG_WriteByte (&cls.netchan.message, clc_stringcmd);
MSG_WriteString (&cls.netchan.message, va("download %s", cls.downloadname));
cls.downloadnumber++;
return false;
}
/*
=================
Model_NextDownload
=================
*/
void Model_NextDownload (void)
{
char *s;
int i;
extern char gamedirfile[];
if (cls.downloadnumber == 0)
{
Con_Printf ("Checking models...\n");
cls.downloadnumber = 1;
}
cls.downloadtype = dl_model;
for (
; cl.model_name[cls.downloadnumber][0]
; cls.downloadnumber++)
{
s = cl.model_name[cls.downloadnumber];
if (s[0] == '*')
continue; // inline brush model
if (!CL_CheckOrDownloadFile(s))
return; // started a download
}
for (i=1 ; i<MAX_MODELS ; i++)
{
if (!cl.model_name[i][0])
break;
cl.model_precache[i] = Mod_ForName (cl.model_name[i], false);
if (!cl.model_precache[i])
{
Con_Printf ("\nThe required model file '%s' could not be found or downloaded.\n\n"
, cl.model_name[i]);
Con_Printf ("You may need to download or purchase a %s client "
"pack in order to play on this server.\n\n", gamedirfile);
CL_Disconnect ();
return;
}
}
// all done
cl.worldmodel = cl.model_precache[1];
R_NewMap ();
Team_NewMap ();
Hunk_Check (); // make sure nothing is hurt
// done with modellist, request first of static signon messages
MSG_WriteByte (&cls.netchan.message, clc_stringcmd);
// MSG_WriteString (&cls.netchan.message, va("prespawn %i 0 %i", cl.servercount, cl.worldmodel->checksum2));
MSG_WriteString (&cls.netchan.message, va(prespawn_name, cl.servercount, cl.worldmodel->checksum2));
}
/*
=================
Sound_NextDownload
=================
*/
void Sound_NextDownload (void)
{
char *s;
int i;
if (cls.downloadnumber == 0)
{
Con_Printf ("Checking sounds...\n");
cls.downloadnumber = 1;
}
cls.downloadtype = dl_sound;
for (
; cl.sound_name[cls.downloadnumber][0]
; cls.downloadnumber++)
{
s = cl.sound_name[cls.downloadnumber];
if (!CL_CheckOrDownloadFile(va("sound/%s",s)))
return; // started a download
}
for (i=1 ; i<MAX_SOUNDS ; i++)
{
if (!cl.sound_name[i][0])
break;
cl.sound_precache[i] = S_PrecacheSound (cl.sound_name[i]);
}
// done with sounds, request models now
memset (cl.model_precache, 0, sizeof(cl.model_precache));
cl_playerindex = -1;
cl_spikeindex = -1;
cl_flagindex = -1;
cl_h_playerindex = -1;
cl_gib1index = cl_gib2index = cl_gib3index = -1;
MSG_WriteByte (&cls.netchan.message, clc_stringcmd);
// MSG_WriteString (&cls.netchan.message, va("modellist %i 0", cl.servercount));
MSG_WriteString (&cls.netchan.message, va(modellist_name, cl.servercount, 0));
}
/*
======================
CL_RequestNextDownload
======================
*/
void CL_RequestNextDownload (void)
{
switch (cls.downloadtype)
{
case dl_single:
break;
case dl_skin:
Skin_NextDownload ();
break;
case dl_model:
Model_NextDownload ();
break;
case dl_sound:
Sound_NextDownload ();
break;
case dl_none:
default:
Con_DPrintf("Unknown download type.\n");
}
}
/*
=====================
CL_ParseDownload
A download message has been received from the server
=====================
*/
void CL_ParseDownload (void)
{
int size, percent;
byte name[1024];
int r;
// read the data
size = MSG_ReadShort ();
percent = MSG_ReadByte ();
if (cls.demoplayback) {
if (size > 0)
msg_readcount += size;
return; // not in demo playback
}
if (size == -1) {
Con_Printf ("File not found.\n");
if (cls.download) {
Con_Printf ("cls.download shouldn't have been set\n");
Qclose (cls.download);
cls.download = NULL;
}
CL_RequestNextDownload ();
return;
}
if (size == -2) {
char *newname = MSG_ReadString();
if (strncmp (newname, cls.downloadname, strlen(cls.downloadname))
|| strstr(newname+strlen(cls.downloadname), "/")) {
Con_Printf ("WARNING: server tried to give a strange new name: %s\n",
newname);
CL_RequestNextDownload ();
return;
}
if (cls.download) {
Qclose (cls.download);
unlink (cls.downloadname);
}
strncpy (cls.downloadname, newname, sizeof (cls.downloadname));
Con_Printf ("downloading to %s\n", cls.downloadname);
return;
}
// open the file if not opened yet
if (!cls.download) {
if (strncmp(cls.downloadtempname,"skins/",6))
snprintf (name, sizeof(name), "%s/%s", com_gamedir, cls.downloadtempname);
else
snprintf (name, sizeof(name), "%s/qw/%s", fs_userpath->string, cls.downloadtempname);
COM_CreatePath (name);
cls.download = Qopen (name, "wb");
if (!cls.download) {
msg_readcount += size;
Con_Printf ("Failed to open %s\n", cls.downloadtempname);
CL_RequestNextDownload ();
return;
}
}
Qwrite (cls.download, net_message.data + msg_readcount, size);
msg_readcount += size;
if (percent != 100) {
// change display routines by zoid
// request next block
#if 0
Con_Printf (".");
if (10*(percent/10) != cls.downloadpercent) {
cls.downloadpercent = 10*(percent/10);
Con_Printf ("%i%%", cls.downloadpercent);
}
#endif
if (percent != cls.downloadpercent)
VID_SetCaption (va ("Downloading %s %d%%", cls.downloadname, percent));
cls.downloadpercent = percent;
MSG_WriteByte (&cls.netchan.message, clc_stringcmd);
SZ_Print (&cls.netchan.message, "nextdl");
} else {
char oldn[MAX_OSPATH];
char newn[MAX_OSPATH];
#if 0
Con_Printf ("100%%\n");
#endif
Qclose (cls.download);
VID_SetCaption (va ("Connecting to %s", cls.servername));
// rename the temp file to it's final name
if (strcmp(cls.downloadtempname, cls.downloadname)) {
if (strncmp(cls.downloadtempname,"skins/",6)) {
snprintf (oldn, sizeof(oldn), "%s/%s", com_gamedir, cls.downloadtempname);
snprintf (newn, sizeof(newn), "%s/%s", com_gamedir, cls.downloadname);
} else {
snprintf (oldn, sizeof(oldn), "%s/qw/%s", fs_userpath->string, cls.downloadtempname);
snprintf (newn, sizeof(newn), "%s/qw/%s", fs_userpath->string, cls.downloadname);
}
r = Qrename (oldn, newn);
if (r)
Con_Printf ("failed to rename, %s.\n", strerror(errno));
}
cls.download = NULL;
cls.downloadpercent = 0;
// get another file if needed
CL_RequestNextDownload ();
}
}
static byte *upload_data;
static int upload_pos;
static int upload_size;
void CL_NextUpload(void)
{
byte buffer[1024];
int r;
int percent;
int size;
if (!upload_data)
return;
r = upload_size - upload_pos;
if (r > 768)
r = 768;
memcpy(buffer, upload_data + upload_pos, r);
MSG_WriteByte (&cls.netchan.message, clc_upload);
MSG_WriteShort (&cls.netchan.message, r);
upload_pos += r;
size = upload_size;
if (!size)
size = 1;
percent = upload_pos*100/size;
MSG_WriteByte (&cls.netchan.message, percent);
SZ_Write (&cls.netchan.message, buffer, r);
Con_DPrintf ("UPLOAD: %6d: %d written\n", upload_pos - r, r);
if (upload_pos != upload_size)
return;
Con_Printf ("Upload completed\n");
free(upload_data);
upload_data = 0;
upload_pos = upload_size = 0;
}
void CL_StartUpload (byte *data, int size)
{
if (cls.state < ca_onserver)
return; // gotta be connected
// override
if (upload_data)
free(upload_data);
Con_DPrintf("Upload starting of %d...\n", size);
upload_data = malloc(size);
memcpy(upload_data, data, size);
upload_size = size;
upload_pos = 0;
CL_NextUpload();
}
qboolean CL_IsUploading(void)
{
if (upload_data)
return true;
return false;
}
void CL_StopUpload(void)
{
if (upload_data)
free(upload_data);
upload_data = NULL;
}
/*
=====================================================================
SERVER CONNECTING MESSAGES
=====================================================================
*/
void Draw_ClearCache (void);
void CL_ClearBaselines(); // LordHavoc: BIG BUG-FIX!
/*
==================
CL_ParseServerData
==================
*/
void CL_ParseServerData (void)
{
char *str;
char fn[MAX_OSPATH];
qboolean cflag = false;
extern char gamedirfile[MAX_OSPATH];
int protover;
Con_DPrintf ("Serverdata packet received.\n");
//
// wipe the client_state_t struct
//
CL_ClearState ();
// parse protocol version number
// allow 2.2 and 2.29 demos to play
protover = MSG_ReadLong ();
if (protover != PROTOCOL_VERSION &&
!(cls.demoplayback && (protover == 26 || protover == 27 || protover == 28)))
Host_EndGame ("Server returned version %i, not %i\nYou probably need to upgrade.\nCheck http://www.quakeworld.net/", protover, PROTOCOL_VERSION);
cl.servercount = MSG_ReadLong ();
// game directory
str = MSG_ReadString ();
if (stricmp(gamedirfile, str)) {
// save current config
Host_WriteConfiguration ();
cflag = true;
Draw_ClearCache ();
}
COM_Gamedir(str);
//ZOID--run the autoexec.cfg in the gamedir
//if it exists
if (cflag) {
int cl_warncmd_val = cl_warncmd->int_val;
Cbuf_AddText ("cl_warncmd 0\n");
Cbuf_AddText ("exec config.cfg\n");
Cbuf_AddText ("exec frontend.cfg\n");
if (cl_autoexec->int_val) {
Cbuf_AddText ("exec autoexec.cfg\n");
}
snprintf(fn,sizeof(fn), "cl_warncmd %d\n", cl_warncmd_val);
Cbuf_AddText(fn);
}
// parse player slot, high bit means spectator
cl.playernum = MSG_ReadByte ();
if (cl.playernum & 128)
{
cl.spectator = true;
cl.playernum &= ~128;
}
// get the full level name
str = MSG_ReadString ();
strncpy (cl.levelname, str, sizeof(cl.levelname)-1);
// get the movevars
movevars.gravity = MSG_ReadFloat();
movevars.stopspeed = MSG_ReadFloat();
movevars.maxspeed = MSG_ReadFloat();
movevars.spectatormaxspeed = MSG_ReadFloat();
movevars.accelerate = MSG_ReadFloat();
movevars.airaccelerate = MSG_ReadFloat();
movevars.wateraccelerate = MSG_ReadFloat();
movevars.friction = MSG_ReadFloat();
movevars.waterfriction = MSG_ReadFloat();
movevars.entgravity = MSG_ReadFloat();
// seperate the printfs so the server message can have a color
Con_Printf("\n\n\35\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\37\n\n");
Con_Printf ("%c%s\n", 2, str);
// ask for the sound list next
memset(cl.sound_name, 0, sizeof(cl.sound_name));
MSG_WriteByte (&cls.netchan.message, clc_stringcmd);
// MSG_WriteString (&cls.netchan.message, va("soundlist %i 0", cl.servercount));
MSG_WriteString (&cls.netchan.message, va(soundlist_name, cl.servercount, 0));
// now waiting for downloads, etc
cls.state = ca_onserver;
CL_ClearBaselines();
}
// LordHavoc: BIG BUG-FIX! Clear baselines each time it connects...
void CL_ClearBaselines()
{
int i;
memset(cl_baselines, 0, sizeof(cl_baselines));
for (i = 0;i < MAX_EDICTS;i++)
{
cl_baselines[i].alpha = 255;
cl_baselines[i].scale = 16;
cl_baselines[i].glowcolor = 254;
cl_baselines[i].glowsize = 0;
cl_baselines[i].colormod = 255;
}
}
/*
==================
CL_ParseSoundlist
==================
*/
void CL_ParseSoundlist (void)
{
int numsounds;
char *str;
int n;
// precache sounds
// memset (cl.sound_precache, 0, sizeof(cl.sound_precache));
numsounds = MSG_ReadByte();
for (;;) {
str = MSG_ReadString ();
if (!str[0])
break;
numsounds++;
if (numsounds == MAX_SOUNDS)
Host_EndGame ("Server sent too many sound_precache");
strcpy (cl.sound_name[numsounds], str);
}
n = MSG_ReadByte();
if (n) {
MSG_WriteByte (&cls.netchan.message, clc_stringcmd);
// MSG_WriteString (&cls.netchan.message, va("soundlist %i %i", cl.servercount, n));
MSG_WriteString (&cls.netchan.message, va(soundlist_name, cl.servercount, n));
return;
}
cls.downloadnumber = 0;
cls.downloadtype = dl_sound;
Sound_NextDownload ();
}
/*
==================
CL_ParseModellist
==================
*/
void CL_ParseModellist (void)
{
int nummodels;
char *str;
int n;
// precache models and note certain default indexes
nummodels = MSG_ReadByte();
for (;;)
{
str = MSG_ReadString ();
if (!str[0])
break;
nummodels++;
if (nummodels==MAX_MODELS)
Host_EndGame ("Server sent too many model_precache");
strcpy (cl.model_name[nummodels], str);
if (!strcmp(cl.model_name[nummodels],"progs/spike.mdl"))
cl_spikeindex = nummodels;
else if (!strcmp(cl.model_name[nummodels],"progs/player.mdl"))
cl_playerindex = nummodels;
else if (!strcmp(cl.model_name[nummodels],"progs/flag.mdl"))
cl_flagindex = nummodels;
// for deadbodyfilter &gibfilter
else if (!strcmp(cl.model_name[nummodels],"progs/h_player.mdl"))
cl_h_playerindex = nummodels;
else if (!strcmp(cl.model_name[nummodels],"progs/gib1.mdl"))
cl_gib1index = nummodels;
else if (!strcmp(cl.model_name[nummodels],"progs/gib2.mdl"))
cl_gib2index = nummodels;
else if (!strcmp(cl.model_name[nummodels],"progs/gib3.mdl"))
cl_gib3index = nummodels;
}
n = MSG_ReadByte();
if (n) {
MSG_WriteByte (&cls.netchan.message, clc_stringcmd);
// MSG_WriteString (&cls.netchan.message, va("modellist %i %i", cl.servercount, n));
MSG_WriteString (&cls.netchan.message, va(modellist_name, cl.servercount, n));
return;
}
cls.downloadnumber = 0;
cls.downloadtype = dl_model;
Model_NextDownload ();
}
/*
==================
CL_ParseBaseline
==================
*/
void CL_ParseBaseline (entity_state_t *es)
{
int i;
es->modelindex = MSG_ReadByte ();
es->frame = MSG_ReadByte ();
es->colormap = MSG_ReadByte();
es->skinnum = MSG_ReadByte();
for (i=0 ; i<3 ; i++)
{
es->origin[i] = MSG_ReadCoord ();
es->angles[i] = MSG_ReadAngle ();
}
// LordHavoc: set up the baseline to account for new effects (alpha, colormod, etc)
es->alpha = 255;
es->scale = 16;
es->glowcolor = 254;
es->glowsize = 0;
es->colormod = 255;
}
/*
=====================
CL_ParseStatic
Static entities are non-interactive world objects
like torches
=====================
*/
void CL_ParseStatic (void)
{
entity_t *ent;
int i;
entity_state_t es;
CL_ParseBaseline (&es);
i = cl.num_statics;
if (i >= MAX_STATIC_ENTITIES)
Host_EndGame ("Too many static entities");
ent = &cl_static_entities[i];
cl.num_statics++;
// copy it to the current state
ent->model = cl.model_precache[es.modelindex];
ent->frame = es.frame;
ent->colormap = vid.colormap;
ent->skinnum = es.skinnum;
VectorCopy (es.origin, ent->origin);
VectorCopy (es.angles, ent->angles);
// LordHavoc: make static entities visible
ent->alpha = 1;
ent->scale = 1;
ent->glowsize = 0;
ent->glowcolor = 254;
ent->colormod[0] = ent->colormod[1] = ent->colormod[2] = 1;
R_AddEfrags (ent);
}
/*
===================
CL_ParseStaticSound
===================
*/
void CL_ParseStaticSound (void)
{
vec3_t org;
int sound_num, vol, atten;
int i;
for (i=0 ; i<3 ; i++)
org[i] = MSG_ReadCoord ();
sound_num = MSG_ReadByte ();
vol = MSG_ReadByte ();
atten = MSG_ReadByte ();
S_StaticSound (cl.sound_precache[sound_num], org, vol, atten);
}
/*
=====================================================================
ACTION MESSAGES
=====================================================================
*/
/*
==================
CL_ParseStartSoundPacket
==================
*/
void CL_ParseStartSoundPacket(void)
{
vec3_t pos;
int channel, ent;
int sound_num;
int volume;
float attenuation;
int i;
channel = MSG_ReadShort();
if (channel & SND_VOLUME)
volume = MSG_ReadByte ();
else
volume = DEFAULT_SOUND_PACKET_VOLUME;
if (channel & SND_ATTENUATION)
attenuation = MSG_ReadByte () / 64.0;
else
attenuation = DEFAULT_SOUND_PACKET_ATTENUATION;
sound_num = MSG_ReadByte ();
for (i=0 ; i<3 ; i++)
pos[i] = MSG_ReadCoord ();
ent = (channel>>3)&1023;
channel &= 7;
if (ent > MAX_EDICTS)
Host_EndGame ("CL_ParseStartSoundPacket: ent = %i", ent);
S_StartSound (ent, channel, cl.sound_precache[sound_num], pos, volume/255.0, attenuation);
}
/*
==================
CL_ParseClientdata
Server information pertaining to this client only, sent every frame
==================
*/
void CL_ParseClientdata (void)
{
int i;
float latency;
frame_t *frame;
// calculate simulated time of message
oldparsecountmod = parsecountmod;
i = cls.netchan.incoming_acknowledged;
cl.parsecount = i;
i &= UPDATE_MASK;
parsecountmod = i;
frame = &cl.frames[i];
parsecounttime = cl.frames[i].senttime;
frame->receivedtime = realtime;
// calculate latency
latency = frame->receivedtime - frame->senttime;
if (latency < 0 || latency > 1.0)
{
// Con_Printf ("Odd latency: %5.2f\n", latency);
}
else
{
// drift the average latency towards the observed latency
if (latency < cls.latency)
cls.latency = latency;
else
cls.latency += 0.001; // drift up, so correction are needed
}
}
/*
==============
CL_UpdateUserinfo
==============
*/
void CL_ProcessUserInfo (int slot, player_info_t *player)
{
strncpy (player->name, Info_ValueForKey (player->userinfo, "name"), sizeof(player->name)-1);
player->topcolor = atoi(Info_ValueForKey (player->userinfo, "topcolor"));
player->bottomcolor = atoi(Info_ValueForKey (player->userinfo, "bottomcolor"));
if (Info_ValueForKey (player->userinfo, "*spectator")[0])
player->spectator = true;
else
player->spectator = false;
if (cls.state == ca_active)
Skin_Find (player);
Sbar_Changed ();
CL_NewTranslation (slot);
}
/*
==============
CL_UpdateUserinfo
==============
*/
void CL_UpdateUserinfo (void)
{
int slot;
player_info_t *player;
slot = MSG_ReadByte ();
if (slot >= MAX_CLIENTS)
Host_EndGame ("CL_ParseServerMessage: svc_updateuserinfo > MAX_SCOREBOARD");
player = &cl.players[slot];
player->userid = MSG_ReadLong ();
strncpy (player->userinfo, MSG_ReadString(), sizeof(player->userinfo)-1);
CL_ProcessUserInfo (slot, player);
}
/*
==============
CL_SetInfo
==============
*/
void CL_SetInfo (void)
{
int slot;
player_info_t *player;
char key[MAX_MSGLEN];
char value[MAX_MSGLEN];
slot = MSG_ReadByte ();
if (slot >= MAX_CLIENTS)
Host_EndGame ("CL_ParseServerMessage: svc_setinfo > MAX_SCOREBOARD");
player = &cl.players[slot];
strncpy (key, MSG_ReadString(), sizeof(key) - 1);
key[sizeof(key) - 1] = 0;
strncpy (value, MSG_ReadString(), sizeof(value) - 1);
key[sizeof(value) - 1] = 0;
Con_DPrintf("SETINFO %s: %s=%s\n", player->name, key, value);
Info_SetValueForKey (player->userinfo, key, value, MAX_INFO_STRING);
CL_ProcessUserInfo (slot, player);
}
/*
==============
CL_ServerInfo
==============
*/
void CL_ServerInfo (void)
{
char key[MAX_MSGLEN];
char value[MAX_MSGLEN];
strncpy (key, MSG_ReadString(), sizeof(key) - 1);
key[sizeof(key) - 1] = 0;
strncpy (value, MSG_ReadString(), sizeof(value) - 1);
key[sizeof(value) - 1] = 0;
Con_DPrintf("SERVERINFO: %s=%s\n", key, value);
Info_SetValueForKey (cl.serverinfo, key, value, MAX_SERVERINFO_STRING);
}
/*
=====================
CL_SetStat
=====================
*/
void CL_SetStat (int stat, int value)
{
int j;
if (stat < 0 || stat >= MAX_CL_STATS)
// Sys_Error ("CL_SetStat: %i is invalid", stat);
Host_EndGame ("CL_SetStat: %i is invalid", stat);
Sbar_Changed ();
switch (stat) {
case STAT_ITEMS: // set flash times
Sbar_Changed ();
for (j=0 ; j<32 ; j++)
if ( (value & (1<<j)) && !(cl.stats[stat] & (1<<j)))
cl.item_gettime[j] = cl.time;
break;
case STAT_HEALTH:
if (value <= 0)
Team_Dead();
break;
}
cl.stats[stat] = value;
}
/*
==============
CL_MuzzleFlash
==============
*/
void CL_MuzzleFlash (void)
{
vec3_t fv, rv, uv;
dlight_t *dl;
int i;
player_state_t *pl;
i = MSG_ReadShort ();
if ((unsigned int)(i-1) >= MAX_CLIENTS)
return;
// don't draw our own muzzle flash in gl if flashblending
if (i-1 == cl.playernum && gl_flashblend->int_val)
return;
pl = &cl.frames[parsecountmod].playerstate[i-1];
dl = CL_AllocDlight (i);
VectorCopy (pl->origin, dl->origin);
AngleVectors (pl->viewangles, fv, rv, uv);
VectorMA (dl->origin, 18, fv, dl->origin);
dl->radius = 200 + (rand()&31);
dl->minlight = 32;
dl->die = cl.time + 0.1;
dl->color[0] = 0.2;
dl->color[1] = 0.1;
dl->color[2] = 0.05;
}
#define SHOWNET(x) if (cl_shownet->int_val == 2) Con_Printf ("%3i:%s\n", msg_readcount-1, x);
/*
=====================
CL_ParseServerMessage
=====================
*/
int received_framecount;
void CL_ParseServerMessage (void)
{
int cmd;
char *s;
int i, j;
received_framecount = host_framecount;
cl.last_servermessage = realtime;
CL_ClearProjectiles ();
//
// if recording demos, copy the message out
//
if (cl_shownet->int_val == 1)
Con_Printf ("%i ",net_message.cursize);
else if (cl_shownet->int_val == 2)
Con_Printf ("------------------\n");
CL_ParseClientdata ();
//
// parse the message
//
while (1)
{
if (msg_badread)
{
Host_EndGame ("CL_ParseServerMessage: Bad server message");
break;
}
cmd = MSG_ReadByte ();
if (cmd == -1)
{
msg_readcount++; // so the EOM showner has the right value
SHOWNET("END OF MESSAGE");
break;
}
SHOWNET(svc_strings[cmd]);
// other commands
switch (cmd)
{
default:
Host_EndGame ("CL_ParseServerMessage: Illegible server message");
break;
case svc_nop:
// Con_Printf ("svc_nop\n");
break;
case svc_disconnect:
if (cls.state == ca_connected)
Host_EndGame ("Server disconnected\n"
"Server version may not be compatible");
else
Host_EndGame ("Server disconnected");
break;
case svc_print:
i = MSG_ReadByte ();
s = MSG_ReadString ();
if (i == PRINT_CHAT)
{
// TODO: cl_nofake 2 -- accept fake messages from teammates
char *p;
if (cl_nofake->int_val) {
for (p = s; *p; p++)
if (*p == 13)
*p = '#';
}
con_ormask = 128;
S_LocalSound ("misc/talk.wav");
}
Con_Printf ("%s", s);
con_ormask = 0;
break;
case svc_centerprint:
SCR_CenterPrint (MSG_ReadString ());
break;
case svc_stufftext:
s = MSG_ReadString ();
Con_DPrintf ("stufftext: %s\n", s);
Cbuf_AddText (s);
break;
case svc_damage:
V_ParseDamage ();
break;
case svc_serverdata:
Cbuf_Execute (); // make sure any stuffed commands are done
CL_ParseServerData ();
vid.recalc_refdef = true; // leave full screen intermission
break;
case svc_setangle:
for (i=0 ; i<3 ; i++)
cl.viewangles[i] = MSG_ReadAngle ();
// cl.viewangles[PITCH] = cl.viewangles[ROLL] = 0;
break;
case svc_lightstyle:
i = MSG_ReadByte ();
if (i >= MAX_LIGHTSTYLES)
// Sys_Error ("svc_lightstyle > MAX_LIGHTSTYLES");
Host_EndGame ("svc_lightstyle > MAX_LIGHTSTYLES");
strcpy (cl_lightstyle[i].map, MSG_ReadString());
cl_lightstyle[i].length = strlen(cl_lightstyle[i].map);
break;
case svc_sound:
CL_ParseStartSoundPacket();
break;
case svc_stopsound:
i = MSG_ReadShort();
S_StopSound(i>>3, i&7);
break;
case svc_updatefrags:
Sbar_Changed ();
i = MSG_ReadByte ();
if (i >= MAX_CLIENTS)
Host_EndGame ("CL_ParseServerMessage: svc_updatefrags > MAX_SCOREBOARD");
cl.players[i].frags = MSG_ReadShort ();
break;
case svc_updateping:
i = MSG_ReadByte ();
if (i >= MAX_CLIENTS)
Host_EndGame ("CL_ParseServerMessage: svc_updateping > MAX_SCOREBOARD");
cl.players[i].ping = MSG_ReadShort ();
break;
case svc_updatepl:
i = MSG_ReadByte ();
if (i >= MAX_CLIENTS)
Host_EndGame ("CL_ParseServerMessage: svc_updatepl > MAX_SCOREBOARD");
cl.players[i].pl = MSG_ReadByte ();
break;
case svc_updateentertime:
// time is sent over as seconds ago
i = MSG_ReadByte ();
if (i >= MAX_CLIENTS)
Host_EndGame ("CL_ParseServerMessage: svc_updateentertime > MAX_SCOREBOARD");
cl.players[i].entertime = realtime - MSG_ReadFloat ();
break;
case svc_spawnbaseline:
i = MSG_ReadShort ();
CL_ParseBaseline (&cl_baselines[i]);
break;
case svc_spawnstatic:
CL_ParseStatic ();
break;
case svc_temp_entity:
CL_ParseTEnt ();
break;
case svc_killedmonster:
cl.stats[STAT_MONSTERS]++;
break;
case svc_foundsecret:
cl.stats[STAT_SECRETS]++;
break;
case svc_updatestat:
i = MSG_ReadByte ();
j = MSG_ReadByte ();
CL_SetStat (i, j);
break;
case svc_updatestatlong:
i = MSG_ReadByte ();
j = MSG_ReadLong ();
CL_SetStat (i, j);
break;
case svc_spawnstaticsound:
CL_ParseStaticSound ();
break;
case svc_cdtrack:
cl.cdtrack = MSG_ReadByte ();
CDAudio_Play ((byte)cl.cdtrack, true);
break;
case svc_intermission:
Con_DPrintf ("svc_intermission\n");
cl.intermission = 1;
cl.completed_time = realtime;
vid.recalc_refdef = true; // go to full screen
Con_DPrintf ("intermission simorg: ");
for (i=0 ; i<3 ; i++)
{
cl.simorg[i] = MSG_ReadCoord ();
Con_DPrintf ("%f ", cl.simorg[i]);
}
Con_DPrintf ("\nintermission simangles: ");
for (i=0 ; i<3 ; i++)
{
cl.simangles[i] = MSG_ReadAngle ();
Con_DPrintf ("%f ", cl.simangles[i]);
}
Con_DPrintf ("\n");
VectorCopy (vec3_origin, cl.simvel);
break;
case svc_finale:
cl.intermission = 2;
cl.completed_time = realtime;
vid.recalc_refdef = true; // go to full screen
SCR_CenterPrint (MSG_ReadString ());
break;
case svc_sellscreen:
Cmd_ExecuteString ("help");
break;
case svc_smallkick:
cl.punchangle = -2;
break;
case svc_bigkick:
cl.punchangle = -4;
break;
case svc_muzzleflash:
CL_MuzzleFlash ();
break;
case svc_updateuserinfo:
CL_UpdateUserinfo ();
break;
case svc_setinfo:
CL_SetInfo ();
break;
case svc_serverinfo:
CL_ServerInfo ();
break;
case svc_download:
CL_ParseDownload ();
break;
case svc_playerinfo:
CL_ParsePlayerinfo ();
break;
case svc_nails:
CL_ParseProjectiles ();
break;
case svc_chokecount: // some preceding packets were choked
i = MSG_ReadByte ();
for (j=0 ; j<i ; j++)
cl.frames[ (cls.netchan.incoming_acknowledged-1-j)&UPDATE_MASK ].receivedtime = -2;
break;
case svc_modellist:
CL_ParseModellist ();
break;
case svc_soundlist:
CL_ParseSoundlist ();
break;
case svc_packetentities:
CL_ParsePacketEntities (false);
break;
case svc_deltapacketentities:
CL_ParsePacketEntities (true);
break;
case svc_maxspeed :
movevars.maxspeed = MSG_ReadFloat();
break;
case svc_entgravity :
movevars.entgravity = MSG_ReadFloat();
break;
case svc_setpause:
cl.paused = MSG_ReadByte ();
if (cl.paused)
CDAudio_Pause ();
else
CDAudio_Resume ();
break;
}
}
CL_SetSolidEntities ();
}