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quakeforge/nq/source/cl_parse.c

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/*
cl_parse.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
$Id$
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include "client.h"
#include "host.h"
#include "QF/cdaudio.h"
#include "QF/cmd.h"
#include "QF/console.h"
#include "QF/msg.h"
#include "QF/sys.h"
#include "sbar.h"
#include "QF/screen.h"
#include "server.h"
#include "QF/sound.h" // FIXME: DEFAULT_SOUND_PACKET_*
#include "game.h"
#include "QF/input.h"
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_serverinfo", // [long] version
// [string] signon string
// [string]..[0]model cache [string]...[0]sounds cache
// [string]..[0]item cache
"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", // [string] music [string] text
"svc_cdtrack", // [byte] track [byte] looptrack
"svc_sellscreen",
"svc_cutscene"
};
/*
CL_EntityNum
This error checks and tracks the total number of entities
*/
entity_t *
CL_EntityNum (int num)
{
if (num >= cl.num_entities) {
if (num >= MAX_EDICTS)
Host_Error ("CL_EntityNum: %i is an invalid number", num);
while (cl.num_entities <= num) {
cl_entities[cl.num_entities].colormap = vid.colormap;
cl.num_entities++;
}
}
return &cl_entities[num];
}
void
CL_ParseStartSoundPacket (void)
{
vec3_t pos;
int channel, ent;
int sound_num;
int volume;
int field_mask;
float attenuation;
int i;
field_mask = MSG_ReadByte (net_message);
if (field_mask & SND_VOLUME)
volume = MSG_ReadByte (net_message);
else
volume = DEFAULT_SOUND_PACKET_VOLUME;
if (field_mask & SND_ATTENUATION)
attenuation = MSG_ReadByte (net_message) / 64.0;
else
attenuation = DEFAULT_SOUND_PACKET_ATTENUATION;
channel = MSG_ReadShort (net_message);
sound_num = MSG_ReadByte (net_message);
ent = channel >> 3;
channel &= 7;
if (ent > MAX_EDICTS)
Host_Error ("CL_ParseStartSoundPacket: ent = %i", ent);
for (i = 0; i < 3; i++)
pos[i] = MSG_ReadCoord (net_message);
S_StartSound (ent, channel, cl.sound_precache[sound_num], pos,
volume / 255.0, attenuation);
}
/*
CL_KeepaliveMessage
When the client is taking a long time to load stuff, send keepalive
messages so the server doesn't disconnect.
*/
void
CL_KeepaliveMessage (void)
{
float time;
static float lastmsg;
int ret;
sizebuf_t old;
byte olddata[8192];
if (sv.active)
return; // no need if server is local
if (cls.demoplayback)
return;
// read messages from server, should just be nops
old = *net_message->message;
memcpy (olddata, net_message->message->data, net_message->message->cursize);
do {
ret = CL_GetMessage ();
switch (ret) {
default:
Host_Error ("CL_KeepaliveMessage: CL_GetMessage failed");
case 0:
break; // nothing waiting
case 1:
Host_Error ("CL_KeepaliveMessage: received a message");
break;
case 2:
if (MSG_ReadByte (net_message) != svc_nop)
Host_Error ("CL_KeepaliveMessage: datagram wasn't a nop");
break;
}
} while (ret);
*net_message->message = old;
memcpy (net_message->message->data, olddata, net_message->message->cursize);
// check time
time = Sys_DoubleTime ();
if (time - lastmsg < 5)
return;
lastmsg = time;
// write out a nop
Con_Printf ("--> client to server keepalive\n");
MSG_WriteByte (&cls.message, clc_nop);
NET_SendMessage (cls.netcon, &cls.message);
SZ_Clear (&cls.message);
}
struct model_s **snd_worldmodel = &cl.worldmodel;
void
CL_ParseServerInfo (void)
{
char *str;
int i;
int nummodels, numsounds;
char model_precache[MAX_MODELS][MAX_QPATH];
char sound_precache[MAX_SOUNDS][MAX_QPATH];
Con_DPrintf ("Serverinfo packet received.\n");
// wipe the client_state_t struct
//
CL_ClearState ();
// parse protocol version number
i = MSG_ReadLong (net_message);
if (i != PROTOCOL_VERSION) {
Con_Printf ("Server returned version %i, not %i", i, PROTOCOL_VERSION);
return;
}
// parse maxclients
cl.maxclients = MSG_ReadByte (net_message);
if (cl.maxclients < 1 || cl.maxclients > MAX_SCOREBOARD) {
Con_Printf ("Bad maxclients (%u) from server\n", cl.maxclients);
return;
}
cl.scores = Hunk_AllocName (cl.maxclients * sizeof (*cl.scores), "scores");
// parse gametype
cl.gametype = MSG_ReadByte (net_message);
// parse signon message
str = MSG_ReadString (net_message);
strncpy (cl.levelname, str, sizeof (cl.levelname) - 1);
// 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);
// first we go through and touch all of the precache data that still
// happens to be in the cache, so precaching something else doesn't
// needlessly purge it
// precache models
memset (cl.model_precache, 0, sizeof (cl.model_precache));
for (nummodels = 1;; nummodels++) {
str = MSG_ReadString (net_message);
if (!str[0])
break;
if (nummodels == MAX_MODELS) {
Con_Printf ("Server sent too many model precaches\n");
return;
}
strcpy (model_precache[nummodels], str);
Mod_TouchModel (str);
}
// precache sounds
memset (cl.sound_precache, 0, sizeof (cl.sound_precache));
for (numsounds = 1;; numsounds++) {
str = MSG_ReadString (net_message);
if (!str[0])
break;
if (numsounds == MAX_SOUNDS) {
Con_Printf ("Server sent too many sound precaches\n");
return;
}
strcpy (sound_precache[numsounds], str);
S_TouchSound (str);
}
// now we try to load everything else until a cache allocation fails
for (i = 1; i < nummodels; i++) {
cl.model_precache[i] = Mod_ForName (model_precache[i], false);
if (cl.model_precache[i] == NULL) {
Con_Printf ("Model %s not found\n", model_precache[i]);
return;
}
CL_KeepaliveMessage ();
}
S_BeginPrecaching ();
for (i = 1; i < numsounds; i++) {
cl.sound_precache[i] = S_PrecacheSound (sound_precache[i]);
CL_KeepaliveMessage ();
}
S_EndPrecaching ();
// local state
cl_entities[0].model = cl.worldmodel = cl.model_precache[1];
R_NewMap ();
Hunk_Check (); // make sure nothing is hurt
noclip_anglehack = false; // noclip is turned off at start
}
int bitcounts[16];
/*
CL_ParseUpdate
Parse an entity update message from the server
If an entities model or origin changes from frame to frame, it must be
relinked. Other attributes can change without relinking.
*/
void
CL_ParseUpdate (int bits)
{
int i;
model_t *model;
int modnum;
qboolean forcelink;
entity_t *ent;
int num;
int skin;
if (cls.signon == SIGNONS - 1) { // first update is the final signon
// stage
cls.signon = SIGNONS;
CL_SignonReply ();
}
if (bits & U_MOREBITS) {
i = MSG_ReadByte (net_message);
bits |= (i << 8);
}
if (bits & U_LONGENTITY)
num = MSG_ReadShort (net_message);
else
num = MSG_ReadByte (net_message);
ent = CL_EntityNum (num);
for (i = 0; i < 16; i++)
if (bits & (1 << i))
bitcounts[i]++;
if (ent->msgtime != cl.mtime[1])
forcelink = true; // no previous frame to lerp from
else
forcelink = false;
ent->msgtime = cl.mtime[0];
if (bits & U_MODEL) {
modnum = MSG_ReadByte (net_message);
if (modnum >= MAX_MODELS)
Host_Error ("CL_ParseModel: bad modnum");
} else
modnum = ent->baseline.modelindex;
model = cl.model_precache[modnum];
if (model != ent->model) {
ent->model = model;
// automatic animation (torches, etc) can be either all together
// or randomized
if (model) {
if (model->synctype == ST_RAND)
ent->syncbase = (float) (rand () & 0x7fff) / 0x7fff;
else
ent->syncbase = 0.0;
} else
forcelink = true; // hack to make null model players
// work
if (num > 0 && num <= cl.maxclients)
CL_NewTranslation (num - 1);
}
if (bits & U_FRAME)
ent->frame = MSG_ReadByte (net_message);
else
ent->frame = ent->baseline.frame;
if (bits & U_COLORMAP)
i = MSG_ReadByte (net_message);
else
i = ent->baseline.colormap;
if (!i)
ent->colormap = vid.colormap;
else {
if (i > cl.maxclients)
Sys_Error ("i >= cl.maxclients");
ent->colormap = cl.scores[i - 1].translations;
}
if (bits & U_SKIN)
skin = MSG_ReadByte (net_message);
else
skin = ent->baseline.skin;
if (skin != ent->skinnum) {
ent->skinnum = skin;
if (num > 0 && num <= cl.maxclients)
CL_NewTranslation (num - 1);
}
if (bits & U_EFFECTS)
ent->effects = MSG_ReadByte (net_message);
else
ent->effects = ent->baseline.effects;
// shift the known values for interpolation
VectorCopy (ent->msg_origins[0], ent->msg_origins[1]);
VectorCopy (ent->msg_angles[0], ent->msg_angles[1]);
if (bits & U_ORIGIN1)
ent->msg_origins[0][0] = MSG_ReadCoord (net_message);
else
ent->msg_origins[0][0] = ent->baseline.origin[0];
if (bits & U_ANGLE1)
ent->msg_angles[0][0] = MSG_ReadAngle (net_message);
else
ent->msg_angles[0][0] = ent->baseline.angles[0];
if (bits & U_ORIGIN2)
ent->msg_origins[0][1] = MSG_ReadCoord (net_message);
else
ent->msg_origins[0][1] = ent->baseline.origin[1];
if (bits & U_ANGLE2)
ent->msg_angles[0][1] = MSG_ReadAngle (net_message);
else
ent->msg_angles[0][1] = ent->baseline.angles[1];
if (bits & U_ORIGIN3)
ent->msg_origins[0][2] = MSG_ReadCoord (net_message);
else
ent->msg_origins[0][2] = ent->baseline.origin[2];
if (bits & U_ANGLE3)
ent->msg_angles[0][2] = MSG_ReadAngle (net_message);
else
ent->msg_angles[0][2] = ent->baseline.angles[2];
if (bits & U_NOLERP)
ent->forcelink = true;
if (forcelink) { // didn't have an update last message
VectorCopy (ent->msg_origins[0], ent->msg_origins[1]);
VectorCopy (ent->msg_origins[0], ent->origin);
VectorCopy (ent->msg_angles[0], ent->msg_angles[1]);
VectorCopy (ent->msg_angles[0], ent->angles);
ent->forcelink = true;
}
}
void
CL_ParseBaseline (entity_t *ent)
{
int i;
ent->baseline.modelindex = MSG_ReadByte (net_message);
ent->baseline.frame = MSG_ReadByte (net_message);
ent->baseline.colormap = MSG_ReadByte (net_message);
ent->baseline.skin = MSG_ReadByte (net_message);
for (i = 0; i < 3; i++) {
ent->baseline.origin[i] = MSG_ReadCoord (net_message);
ent->baseline.angles[i] = MSG_ReadAngle (net_message);
}
}
/*
CL_ParseClientdata
Server information pertaining to this client only
*/
void
CL_ParseClientdata (int bits)
{
int i, j;
if (bits & SU_VIEWHEIGHT)
cl.viewheight = MSG_ReadChar (net_message);
else
cl.viewheight = DEFAULT_VIEWHEIGHT;
if (bits & SU_IDEALPITCH)
cl.idealpitch = MSG_ReadChar (net_message);
else
cl.idealpitch = 0;
VectorCopy (cl.mvelocity[0], cl.mvelocity[1]);
for (i = 0; i < 3; i++) {
if (bits & (SU_PUNCH1 << i))
cl.punchangle[i] = MSG_ReadChar (net_message);
else
cl.punchangle[i] = 0;
if (bits & (SU_VELOCITY1 << i))
cl.mvelocity[0][i] = MSG_ReadChar (net_message) * 16;
else
cl.mvelocity[0][i] = 0;
}
// [always sent] if (bits & SU_ITEMS)
i = MSG_ReadLong (net_message);
if (cl.stats[STAT_ITEMS] != i) { // set flash times
Sbar_Changed ();
for (j = 0; j < 32; j++)
if ((i & (1 << j)) && !(cl.stats[STAT_ITEMS] & (1 << j)))
cl.item_gettime[j] = cl.time;
cl.stats[STAT_ITEMS] = i;
}
cl.onground = (bits & SU_ONGROUND) != 0;
cl.inwater = (bits & SU_INWATER) != 0;
if (bits & SU_WEAPONFRAME)
cl.stats[STAT_WEAPONFRAME] = MSG_ReadByte (net_message);
else
cl.stats[STAT_WEAPONFRAME] = 0;
if (bits & SU_ARMOR)
i = MSG_ReadByte (net_message);
else
i = 0;
if (cl.stats[STAT_ARMOR] != i) {
cl.stats[STAT_ARMOR] = i;
Sbar_Changed ();
}
if (bits & SU_WEAPON)
i = MSG_ReadByte (net_message);
else
i = 0;
if (cl.stats[STAT_WEAPON] != i) {
cl.stats[STAT_WEAPON] = i;
Sbar_Changed ();
}
i = MSG_ReadShort (net_message);
if (cl.stats[STAT_HEALTH] != i) {
cl.stats[STAT_HEALTH] = i;
Sbar_Changed ();
}
i = MSG_ReadByte (net_message);
if (cl.stats[STAT_AMMO] != i) {
cl.stats[STAT_AMMO] = i;
Sbar_Changed ();
}
for (i = 0; i < 4; i++) {
j = MSG_ReadByte (net_message);
if (cl.stats[STAT_SHELLS + i] != j) {
cl.stats[STAT_SHELLS + i] = j;
Sbar_Changed ();
}
}
i = MSG_ReadByte (net_message);
if (standard_quake) {
if (cl.stats[STAT_ACTIVEWEAPON] != i) {
cl.stats[STAT_ACTIVEWEAPON] = i;
Sbar_Changed ();
}
} else {
if (cl.stats[STAT_ACTIVEWEAPON] != (1 << i)) {
cl.stats[STAT_ACTIVEWEAPON] = (1 << i);
Sbar_Changed ();
}
}
}
void
CL_ParseStatic (void)
{
entity_t *ent;
int i;
i = cl.num_statics;
if (i >= MAX_STATIC_ENTITIES)
Host_Error ("Too many static entities");
ent = &cl_static_entities[i];
cl.num_statics++;
CL_ParseBaseline (ent);
// copy it to the current state
ent->model = cl.model_precache[ent->baseline.modelindex];
ent->frame = ent->baseline.frame;
ent->colormap = vid.colormap;
ent->skinnum = ent->baseline.skin;
ent->effects = ent->baseline.effects;
VectorCopy (ent->baseline.origin, ent->origin);
VectorCopy (ent->baseline.angles, ent->angles);
R_AddEfrags (ent);
}
void
CL_ParseStaticSound (void)
{
vec3_t org;
int sound_num, vol, atten;
int i;
for (i = 0; i < 3; i++)
org[i] = MSG_ReadCoord (net_message);
sound_num = MSG_ReadByte (net_message);
vol = MSG_ReadByte (net_message);
atten = MSG_ReadByte (net_message);
S_StaticSound (cl.sound_precache[sound_num], org, vol, atten);
}
#define SHOWNET(x) if(cl_shownet->int_val==2)Con_Printf ("%3i:%s\n", net_message->readcount-1, x);
int snd_viewentity;
void
CL_ParseServerMessage (void)
{
int cmd;
int i;
// if recording demos, copy the message out
//
if (cl_shownet->int_val == 1)
Con_Printf ("%i ", net_message->message->cursize);
else if (cl_shownet->int_val == 2)
Con_Printf ("------------------\n");
cl.onground = false; // unless the server says otherwise
// parse the message
//
MSG_BeginReading (net_message);
while (1) {
if (net_message->badread)
Host_Error ("CL_ParseServerMessage: Bad server message");
cmd = MSG_ReadByte (net_message);
if (cmd == -1) {
SHOWNET ("END OF MESSAGE");
return; // end of message
}
// if the high bit of the command byte is set, it is a fast update
if (cmd & 128) {
SHOWNET ("fast update");
CL_ParseUpdate (cmd & 127);
continue;
}
SHOWNET (svc_strings[cmd]);
// other commands
switch (cmd) {
default:
Host_Error ("CL_ParseServerMessage: Illegible server message\n");
break;
case svc_nop:
// Con_Printf ("svc_nop\n");
break;
case svc_time:
cl.mtime[1] = cl.mtime[0];
cl.mtime[0] = MSG_ReadFloat (net_message);
break;
case svc_clientdata:
i = MSG_ReadShort (net_message);
CL_ParseClientdata (i);
break;
case svc_version:
i = MSG_ReadLong (net_message);
if (i != PROTOCOL_VERSION)
Host_Error
("CL_ParseServerMessage: Server is protocol %i instead of %i\n",
i, PROTOCOL_VERSION);
break;
case svc_disconnect:
Host_EndGame ("Server disconnected\n");
case svc_print:
Con_Printf ("%s", MSG_ReadString (net_message));
break;
case svc_centerprint:
SCR_CenterPrint (MSG_ReadString (net_message));
break;
case svc_stufftext:
Cbuf_AddText (MSG_ReadString (net_message));
break;
case svc_damage:
V_ParseDamage ();
break;
case svc_serverinfo:
CL_ParseServerInfo ();
vid.recalc_refdef = true; // leave intermission full screen
break;
case svc_setangle:
for (i = 0; i < 3; i++)
cl.viewangles[i] = MSG_ReadAngle (net_message);
break;
case svc_setview:
cl.viewentity = MSG_ReadShort (net_message);
snd_viewentity = cl.viewentity; // FIXME: evil hack
break;
case svc_lightstyle:
i = MSG_ReadByte (net_message);
if (i >= MAX_LIGHTSTYLES)
Sys_Error ("svc_lightstyle > MAX_LIGHTSTYLES");
strcpy (cl_lightstyle[i].map, MSG_ReadString (net_message));
cl_lightstyle[i].length = strlen (cl_lightstyle[i].map);
break;
case svc_sound:
CL_ParseStartSoundPacket ();
break;
case svc_stopsound:
i = MSG_ReadShort (net_message);
S_StopSound (i >> 3, i & 7);
break;
case svc_updatename:
Sbar_Changed ();
i = MSG_ReadByte (net_message);
if (i >= cl.maxclients)
Host_Error
("CL_ParseServerMessage: svc_updatename > MAX_SCOREBOARD");
strcpy (cl.scores[i].name, MSG_ReadString (net_message));
break;
case svc_updatefrags:
Sbar_Changed ();
i = MSG_ReadByte (net_message);
if (i >= cl.maxclients)
Host_Error
("CL_ParseServerMessage: svc_updatefrags > MAX_SCOREBOARD");
cl.scores[i].frags = MSG_ReadShort (net_message);
break;
case svc_updatecolors:
Sbar_Changed ();
i = MSG_ReadByte (net_message);
if (i >= cl.maxclients)
Host_Error
("CL_ParseServerMessage: svc_updatecolors > MAX_SCOREBOARD");
cl.scores[i].colors = MSG_ReadByte (net_message);
CL_NewTranslation (i);
break;
case svc_particle:
CL_ParseParticleEffect ();
break;
case svc_spawnbaseline:
i = MSG_ReadShort (net_message);
// must use CL_EntityNum() to force cl.num_entities up
CL_ParseBaseline (CL_EntityNum (i));
break;
case svc_spawnstatic:
CL_ParseStatic ();
break;
case svc_temp_entity:
CL_ParseTEnt ();
break;
case svc_setpause:
{
cl.paused = MSG_ReadByte (net_message);
if (cl.paused) {
CDAudio_Pause ();
IN_HandlePause (true);
VID_HandlePause (true);
} else {
VID_HandlePause (false);
IN_HandlePause (false);
CDAudio_Resume ();
}
}
break;
case svc_signonnum:
i = MSG_ReadByte (net_message);
if (i <= cls.signon)
Host_Error ("Received signon %i when at %i", i, cls.signon);
cls.signon = i;
CL_SignonReply ();
break;
case svc_killedmonster:
cl.stats[STAT_MONSTERS]++;
break;
case svc_foundsecret:
cl.stats[STAT_SECRETS]++;
break;
case svc_updatestat:
i = MSG_ReadByte (net_message);
if (i < 0 || i >= MAX_CL_STATS)
Sys_Error ("svc_updatestat: %i is invalid", i);
cl.stats[i] = MSG_ReadLong (net_message);;
break;
case svc_spawnstaticsound:
CL_ParseStaticSound ();
break;
case svc_cdtrack:
cl.cdtrack = MSG_ReadByte (net_message);
cl.looptrack = MSG_ReadByte (net_message);
if ((cls.demoplayback || cls.demorecording)
&& (cls.forcetrack != -1))
CDAudio_Play ((byte) cls.forcetrack, true);
else
CDAudio_Play ((byte) cl.cdtrack, true);
break;
case svc_intermission:
cl.intermission = 1;
cl.completed_time = cl.time;
vid.recalc_refdef = true; // go to full screen
break;
case svc_finale:
cl.intermission = 2;
cl.completed_time = cl.time;
vid.recalc_refdef = true; // go to full screen
SCR_CenterPrint (MSG_ReadString (net_message));
break;
case svc_cutscene:
cl.intermission = 3;
cl.completed_time = cl.time;
vid.recalc_refdef = true; // go to full screen
SCR_CenterPrint (MSG_ReadString (net_message));
break;
case svc_sellscreen:
Cmd_ExecuteString ("help", src_command);
break;
}
}
}
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