quakespasm/source/cl_parse.c

/*
Copyright (C) 1996-2001 Id Software, Inc.
Copyright (C) 2002-2009 John Fitzgibbons and others
Copyright (C) 2007-2008 Kristian Duske
Copyright (C) 2010-2014 QuakeSpasm developers

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_parse.c  -- parse a message received from the server

#include "quakedef.h"
#include "bgmusic.h"

const 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_updatepoints",	// [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",
//johnfitz -- new server messages
	"",	// 35
	"svc_hitmark",	// 36
	"svc_skybox", // 37					// [string] skyname
	"svc_useprint", // 38
	"", // 39
	"svc_bf", // 40						// no data
	"svc_fog", // 41					// [byte] start [byte] end [byte] red [byte] green [byte] blue [float] time
	"svc_spawnbaseline2", //42			// support for large modelindex, large framenum, alpha, using flags
	"svc_spawnstatic2", // 43			// support for large modelindex, large framenum, alpha, using flags
	"svc_spawnstaticsound2", //	44		// [coord3] [short] samp [byte] vol [byte] aten
	"", // 45
	"", // 46
	"", // 47
	"", // 48
	"", // 49
	"svc_bspdecal",   // 50     // [string] name [byte] decal_size [coords] pos
	"svc_limbupdate", // 51
    "svc_achievement", // 52
    "svc_updatekills"  // 53


//johnfitz
};

qboolean warn_about_nehahra_protocol; //johnfitz

extern vec3_t	v_punchangles[2]; //johnfitz

//=============================================================================

/*
===============
CL_EntityNum

This error checks and tracks the total number of entities
===============
*/
entity_t	*CL_EntityNum (int num)
{
	//johnfitz -- check minimum number too
	if (num < 0)
		Host_Error ("CL_EntityNum: %i is an invalid number",num);
	//john

	if (num >= cl.num_entities)
	{
		if (num >= cl_max_edicts) //johnfitz -- no more 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_entities[cl.num_entities].lerpflags |= LERP_RESETMOVE|LERP_RESETANIM; //johnfitz
			cl.num_entities++;
		}
	}

	return &cl_entities[num];
}


/*
==================
CL_ParseStartSoundPacket
==================
*/
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();

	if (field_mask & SND_VOLUME)
		volume = MSG_ReadByte ();
	else
		volume = DEFAULT_SOUND_PACKET_VOLUME;

	if (field_mask & SND_ATTENUATION)
		attenuation = MSG_ReadByte () / 64.0;
	else
		attenuation = DEFAULT_SOUND_PACKET_ATTENUATION;

	//johnfitz -- PROTOCOL_FITZQUAKE
	if (field_mask & SND_LARGEENTITY)
	{
		ent = (unsigned short) MSG_ReadShort ();
		channel = MSG_ReadByte ();
	}
	else
	{
		channel = (unsigned short) MSG_ReadShort ();
		ent = channel >> 3;
		channel &= 7;
	}

	if (field_mask & SND_LARGESOUND)
		sound_num = (unsigned short) MSG_ReadShort ();
	else
		sound_num = MSG_ReadByte ();
	//johnfitz

	//johnfitz -- check soundnum
	if (sound_num >= MAX_SOUNDS)
		Host_Error ("CL_ParseStartSoundPacket: %i > MAX_SOUNDS", sound_num);
	//johnfitz

	if (ent > cl_max_edicts) //johnfitz -- no more MAX_EDICTS
		Host_Error ("CL_ParseStartSoundPacket: ent = %i", ent);

	for (i = 0; i < 3; i++)
		pos[i] = MSG_ReadCoord (cl.protocolflags);

	S_StartSound (ent, channel, cl.sound_precache[sound_num], pos, volume/255.0, attenuation);
}


/*
==================
CL_ParseBSPDecal

Spawn decals on map
Crow_bar.
==================
*/
/*
void CL_ParseBSPDecal (void)
{
	vec3_t		pos;
	int			decal_size;
	char        *texname;

    texname     = MSG_ReadString ();
    decal_size  = MSG_ReadByte   ();
	pos[0]      = MSG_ReadCoord  (cl.protocolflags);
    pos[1]      = MSG_ReadCoord  (cl.protocolflags);
    pos[2]      = MSG_ReadCoord  (cl.protocolflags);

	if(!texname)
		return;

	Con_Printf("BSPDECAL[tex: %s size: %i pos: %f %f %f]\n", texname, decal_size, pos[0], pos[1], pos[2]);

	R_SpawnDecalBSP(pos, texname, decal_size);
}
*/

/*
==================
CL_KeepaliveMessage

When the client is taking a long time to load stuff, send keepalive messages
so the server doesn't disconnect.
==================
*/
static byte	net_olddata[NET_MAXMESSAGE];
void CL_KeepaliveMessage (void)
{
	float	time;
	static float lastmsg;
	int		ret;
	sizebuf_t	old;
	byte	*olddata;

	if (sv.active)
		return;		// no need if server is local
	if (cls.demoplayback)
		return;

// read messages from server, should just be nops
	olddata = net_olddata;
	old = net_message;
	memcpy (olddata, net_message.data, net_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() != svc_nop)
				Host_Error ("CL_KeepaliveMessage: datagram wasn't a nop");
			break;
		}
	} while (ret);

	net_message = old;
	memcpy (net_message.data, olddata, net_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);
}

/*
==================
CL_ParseServerInfo
==================
*/
void CL_ParseServerInfo (void)
{
	const 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");

// ericw -- bring up loading plaque for map changes within a demo.
//          it will be hidden in CL_SignonReply.
	if (cls.demoplayback)
		SCR_BeginLoadingPlaque();

//
// wipe the client_state_t struct
//
	CL_ClearState ();

// parse protocol version number
	i = MSG_ReadLong ();
	//johnfitz -- support multiple protocols
	if (i != PROTOCOL_NETQUAKE && i != PROTOCOL_FITZQUAKE && i != PROTOCOL_RMQ) {
		Con_Printf ("\n"); //because there's no newline after serverinfo print
		Host_Error ("Server returned version %i, not %i or %i or %i", i, PROTOCOL_NETQUAKE, PROTOCOL_FITZQUAKE, PROTOCOL_RMQ);
	}
	cl.protocol = i;
	//johnfitz

	if (cl.protocol == PROTOCOL_RMQ)
	{
		const unsigned int supportedflags = (PRFL_SHORTANGLE | PRFL_FLOATANGLE | PRFL_24BITCOORD | PRFL_FLOATCOORD | PRFL_EDICTSCALE | PRFL_INT32COORD);
		
		// mh - read protocol flags from server so that we know what protocol features to expect
		cl.protocolflags = (unsigned int) MSG_ReadLong ();
		
		if (0 != (cl.protocolflags & (~supportedflags)))
		{
			Con_Warning("PROTOCOL_RMQ protocolflags %i contains unsupported flags\n", cl.protocolflags);
		}
	}
	else cl.protocolflags = 0;
	
// parse maxclients
	cl.maxclients = MSG_ReadByte ();
	if (cl.maxclients < 1 || cl.maxclients > MAX_SCOREBOARD)
	{
		Host_Error ("Bad maxclients (%u) from server", cl.maxclients);
	}
	cl.scores = (scoreboard_t *) Hunk_AllocName (cl.maxclients*sizeof(*cl.scores), "scores");

// parse gametype
	cl.gametype = MSG_ReadByte ();

// parse signon message
	str = MSG_ReadString ();
	q_strlcpy (cl.levelname, str, sizeof(cl.levelname));

// seperate the printfs so the server message can have a color
	Con_Printf ("\n%s\n", Con_Quakebar(40)); //johnfitz
	Con_Printf ("%c%s\n", 2, str);

//johnfitz -- tell user which protocol this is
	Con_Printf ("Using protocol %i\n", i);

// 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 ();
		if (!str[0])
			break;
		if (nummodels==MAX_MODELS)
		{
			Host_Error ("Server sent too many model precaches");
		}
		q_strlcpy (model_precache[nummodels], str, MAX_QPATH);
		Mod_TouchModel (str);
	}

	//johnfitz -- check for excessive models
	if (nummodels >= 256)
		Con_DWarning ("%i models exceeds standard limit of 256 (max = %d).\n", nummodels, MAX_MODELS);
	//johnfitz

// precache sounds
	memset (cl.sound_precache, 0, sizeof(cl.sound_precache));
	for (numsounds = 1 ; ; numsounds++)
	{
		str = MSG_ReadString ();
		if (!str[0])
			break;
		if (numsounds==MAX_SOUNDS)
		{
			Host_Error ("Server sent too many sound precaches");
		}
		q_strlcpy (sound_precache[numsounds], str, MAX_QPATH);
		S_TouchSound (str);
	}

	//johnfitz -- check for excessive sounds
	if (numsounds >= 256)
		Con_DWarning ("%i sounds exceeds standard limit of 256 (max = %d).\n", numsounds, MAX_SOUNDS);
	//johnfitz

//
// now we try to load everything else until a cache allocation fails
//

	loading_num_step = loading_num_step +nummodels + numsounds;
	loading_step = 1;

	// copy the naked name of the map file to the cl structure -- O.S
	COM_StripExtension (COM_SkipPath(model_precache[1]), cl.mapname, sizeof(cl.mapname));

	for (i = 1; i < nummodels; i++)
	{
		cl.model_precache[i] = Mod_ForName (model_precache[i], false);
		if (cl.model_precache[i] == NULL)
		{
			Host_Error ("Model %s not found", model_precache[i]);
		}
		CL_KeepaliveMessage ();
		loading_cur_step++;
		strcpy(loading_name, model_precache[i]);
		//Con_Printf("%i,",i);
		SCR_UpdateScreen ();
	}
	
	SCR_UpdateScreen ();
	
	loading_step = 4;

	S_BeginPrecaching ();
	for (i = 1; i < numsounds; i++)
	{
		cl.sound_precache[i] = S_PrecacheSound (sound_precache[i]);
		CL_KeepaliveMessage ();
		loading_cur_step++;
		//Con_Printf("%i,",i);
		strcpy(loading_name, sound_precache[i]);
		SCR_UpdateScreen ();
	}
	S_EndPrecaching ();
	
	SCR_UpdateScreen ();
   	Clear_LoadingFill ();

// local state
	cl_entities[0].model = cl.worldmodel = cl.model_precache[1];

	R_NewMap ();

	//johnfitz -- clear out string; we don't consider identical
	//messages to be duplicates if the map has changed in between
	con_lastcenterstring[0] = 0;
	//johnfitz

	Hunk_Check ();		// make sure nothing is hurt
	HUD_NewMap ();

	noclip_anglehack = false;		// noclip is turned off at start

	warn_about_nehahra_protocol = true; //johnfitz -- warn about nehahra protocol hack once per server connection

//johnfitz -- reset developer stats
	memset(&dev_stats, 0, sizeof(dev_stats));
	memset(&dev_peakstats, 0, sizeof(dev_peakstats));
	memset(&dev_overflows, 0, sizeof(dev_overflows));
}

/*
==================
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;
	qmodel_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 ();
		bits |= (i<<8);
	}

	//johnfitz -- PROTOCOL_FITZQUAKE
	if (cl.protocol == PROTOCOL_FITZQUAKE || cl.protocol == PROTOCOL_RMQ)
	{
		if (bits & U_EXTEND1)
			bits |= MSG_ReadByte() << 16;
		if (bits & U_EXTEND2)
			bits |= MSG_ReadByte() << 24;
	}
	//johnfitz

	if (bits & U_LONGENTITY)
		num = MSG_ReadShort ();
	else
		num = MSG_ReadByte ();

	ent = CL_EntityNum (num);

	if (ent->msgtime != cl.mtime[1])
		forcelink = true;	// no previous frame to lerp from
	else
		forcelink = false;

	//johnfitz -- lerping
	if (ent->msgtime + 0.2 < cl.mtime[0]) //more than 0.2 seconds since the last message (most entities think every 0.1 sec)
		ent->lerpflags |= LERP_RESETANIM; //if we missed a think, we'd be lerping from the wrong frame
	//johnfitz

	ent->msgtime = cl.mtime[0];

	if (bits & U_MODEL)
	{
		modnum = MSG_ReadByte ();
		if (modnum >= MAX_MODELS)
			Host_Error ("CL_ParseModel: bad modnum");
	}
	else
		modnum = ent->baseline.modelindex;

	if (bits & U_FRAME)
		ent->frame = MSG_ReadByte ();
	else
		ent->frame = ent->baseline.frame;

	if (bits & U_COLORMAP)
		i = MSG_ReadByte();
	else
		i = ent->baseline.colormap;
	if (!i)
		ent->colormap = vid.colormap;
	else
	{
		if (i > cl.maxclients)
			Sys_Error ("i >= cl.maxclients");
		ent->colormap = 0;// cl.scores[i-1].translations;
	}
	if (bits & U_SKIN)
		skin = MSG_ReadByte();
	else
		skin = ent->baseline.skin;
	if (skin != ent->skinnum)
	{
		ent->skinnum = skin;
		if (num > 0 && num <= cl.maxclients)
			R_TranslateNewPlayerSkin (num - 1); //johnfitz -- was R_TranslatePlayerSkin
	}
	if (bits & U_EFFECTS)
		ent->effects = MSG_ReadShort();
	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 (cl.protocolflags);
	else
		ent->msg_origins[0][0] = ent->baseline.origin[0];
	if (bits & U_ANGLE1)
		ent->msg_angles[0][0] = MSG_ReadAngle(cl.protocolflags);
	else
		ent->msg_angles[0][0] = ent->baseline.angles[0];

	if (bits & U_ORIGIN2)
		ent->msg_origins[0][1] = MSG_ReadCoord (cl.protocolflags);
	else
		ent->msg_origins[0][1] = ent->baseline.origin[1];
	if (bits & U_ANGLE2)
		ent->msg_angles[0][1] = MSG_ReadAngle(cl.protocolflags);
	else
		ent->msg_angles[0][1] = ent->baseline.angles[1];

	if (bits & U_ORIGIN3)
		ent->msg_origins[0][2] = MSG_ReadCoord (cl.protocolflags);
	else
		ent->msg_origins[0][2] = ent->baseline.origin[2];
	if (bits & U_ANGLE3)
		ent->msg_angles[0][2] = MSG_ReadAngle(cl.protocolflags);
	else
		ent->msg_angles[0][2] = ent->baseline.angles[2];

	//johnfitz -- lerping for movetype_step entities
	if (bits & U_STEP)
	{
		ent->lerpflags |= LERP_MOVESTEP;
		ent->forcelink = true;
	}
	else
		ent->lerpflags &= ~LERP_MOVESTEP;
	//johnfitz

	// NZP START
	if (bits & U_LIGHTLEVEL)
		ent->light_lev = MSG_ReadByte();
	// NZP END

	//johnfitz -- PROTOCOL_FITZQUAKE and PROTOCOL_NEHAHRA
	if (cl.protocol == PROTOCOL_FITZQUAKE || cl.protocol == PROTOCOL_RMQ)
	{
		if (bits & U_ALPHA)
			ent->alpha = MSG_ReadByte();
		else
			ent->alpha = ent->baseline.alpha;
		if (bits & U_SCALE)
			MSG_ReadByte(); // PROTOCOL_RMQ: currently ignored
		if (bits & U_FRAME2)
			ent->frame = (ent->frame & 0x00FF) | (MSG_ReadByte() << 8);
		if (bits & U_MODEL2)
			modnum = (modnum & 0x00FF) | (MSG_ReadByte() << 8);
		if (bits & U_LERPFINISH)
		{
			ent->lerpfinish = ent->msgtime + ((float)(MSG_ReadByte()) / 255);
			ent->lerpflags |= LERP_FINISH;
		}
		else
			ent->lerpflags &= ~LERP_FINISH;
	}
	else if (cl.protocol == PROTOCOL_NETQUAKE)
	{
		//HACK: if this bit is set, assume this is PROTOCOL_NEHAHRA
		if (bits & U_TRANS)
		{
			float a, b;

			if (warn_about_nehahra_protocol)
			{
				Con_Warning ("nonstandard update bit, assuming Nehahra protocol\n");
				warn_about_nehahra_protocol = false;
			}

			a = MSG_ReadFloat();
			b = MSG_ReadFloat(); //alpha
			if (a == 2)
				MSG_ReadFloat(); //fullbright (not using this yet)
			ent->alpha = ENTALPHA_ENCODE(b);
		}
		else
			ent->alpha = ent->baseline.alpha;
	}
	//johnfitz

	//johnfitz -- moved here from above
	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)
			R_TranslateNewPlayerSkin (num - 1); //johnfitz -- was R_TranslatePlayerSkin

		ent->lerpflags |= LERP_RESETANIM; //johnfitz -- don't lerp animation across model changes
	}
	//johnfitz

	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;
	}
}

/*
==================
CL_ParseBaseline
==================
*/
void CL_ParseBaseline (entity_t *ent, int version) //johnfitz -- added argument
{
	int	i;
	int bits; //johnfitz

	//johnfitz -- PROTOCOL_FITZQUAKE
	bits = (version == 2) ? MSG_ReadByte() : 0;
	ent->baseline.modelindex = (bits & B_LARGEMODEL) ? MSG_ReadShort() : MSG_ReadByte();
	ent->baseline.frame = (bits & B_LARGEFRAME) ? MSG_ReadShort() : MSG_ReadByte();
	//johnfitz

	ent->baseline.colormap = MSG_ReadByte();
	ent->baseline.skin = MSG_ReadByte();
	for (i = 0; i < 3; i++)
	{
		ent->baseline.origin[i] = MSG_ReadCoord (cl.protocolflags);
		ent->baseline.angles[i] = MSG_ReadAngle (cl.protocolflags);
	}

	ent->baseline.alpha = (bits & B_ALPHA) ? MSG_ReadByte() : ENTALPHA_DEFAULT; //johnfitz -- PROTOCOL_FITZQUAKE
	ent->baseline.light_lev = (bits & B_LIGHTLEVEL) ? MSG_ReadByte() : 0;
}


/*
==================
CL_ParseClientdata

Server information pertaining to this client only
==================
*/
extern int perk_order[9];
extern int current_perk_order;

extern double HUD_Change_time;

void CL_ParseClientdata (void)
{
	int		i, j, s;
	int		bits; //johnfitz

	bits = (unsigned short)MSG_ReadShort (); //johnfitz -- read bits here isntead of in CL_ParseServerMessage()

	//johnfitz -- PROTOCOL_FITZQUAKE
	if (bits & SU_EXTEND1)
		bits |= (MSG_ReadByte() << 16);
	if (bits & SU_EXTEND2)
		bits |= (MSG_ReadByte() << 24);
	//johnfitz

	if (bits & SU_VIEWHEIGHT)
		cl.viewheight = MSG_ReadChar ();
	else
		cl.viewheight = DEFAULT_VIEWHEIGHT;

	if (bits & SU_IDEALPITCH)
		cl.idealpitch = MSG_ReadChar ();
	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();
		else
			cl.punchangle[i] = 0;

		if (bits & (SU_VELOCITY1<<i) )
			cl.mvelocity[0][i] = MSG_ReadChar()*16;
		else
			cl.mvelocity[0][i] = 0;
	}

	//johnfitz -- update v_punchangles
	if (v_punchangles[0][0] != cl.punchangle[0] || v_punchangles[0][1] != cl.punchangle[1] || v_punchangles[0][2] != cl.punchangle[2])
	{
		VectorCopy (v_punchangles[0], v_punchangles[1]);
		VectorCopy (cl.punchangle, v_punchangles[0]);
	}
	//johnfitz

	if (bits & SU_PERKS)
		i = MSG_ReadLong ();
	else
		i = 0;
	if (cl.perks != i)
	{
		if (i & 1 && !(cl.perks & 1))
		{
			perk_order[current_perk_order] = 1;
			current_perk_order++;
		}
		if (i & 2 && !(cl.perks & 2))
		{
			perk_order[current_perk_order] = 2;
			current_perk_order++;
		}
		if (i & 4 && !(cl.perks & 4))
		{
			perk_order[current_perk_order] = 4;
			current_perk_order++;
		}
		if (i & 8 && !(cl.perks & 8))
		{
			perk_order[current_perk_order] = 8;
			current_perk_order++;
		}
		if (i & 16 && !(cl.perks & 16))
		{
			perk_order[current_perk_order] = 16;
			current_perk_order++;
		}
		if (i & 32 && !(cl.perks & 32))
		{
			perk_order[current_perk_order] = 32;
			current_perk_order++;
		}
		if (i & 64 && !(cl.perks & 64))
		{
			perk_order[current_perk_order] = 64;
			current_perk_order++;
		}
		if (i & 128 && !(cl.perks & 128))
		{
			perk_order[current_perk_order] = 128;
			current_perk_order++;
		}
		if (cl.perks & 1 && !(i & 1))
		{
			for (s = 0; s < 9; s++)
			{
				if (perk_order[s] == 1)
				{
					perk_order[s] = 0;
					while (perk_order[s+1])
					{
						perk_order[s] = perk_order[s+1];
						perk_order[s+1] = 0;
					}
					break;
				}
			}
			current_perk_order--;
		}
		if (cl.perks & 2 && !(i & 2))
		{
			for (s = 0; s < 9; s++)
			{
				if (perk_order[s] == 2)
				{
					perk_order[s] = 0;
					while (perk_order[s+1])
					{
						perk_order[s] = perk_order[s+1];
						perk_order[s+1] = 0;
					}
					break;
				}
			}
			current_perk_order--;
		}
		if (cl.perks & 4 && !(i & 4))
		{
			for (s = 0; s < 9; s++)
			{
				if (perk_order[s] == 4)
				{
					perk_order[s] = 0;
					while (perk_order[s+1])
					{
						perk_order[s] = perk_order[s+1];
						perk_order[s+1] = 0;
					}
					break;
				}
			}
			current_perk_order--;
		}
		if (cl.perks & 8 && !(i & 8))
		{
			for (s = 0; s < 9; s++)
			{
				if (perk_order[s] == 8)
				{
					perk_order[s] = 0;
					while (perk_order[s+1])
					{
						perk_order[s] = perk_order[s+1];
						perk_order[s+1] = 0;
					}
					break;
				}
			}
			current_perk_order--;
		}
		if (cl.perks & 16 && !(i & 16))
		{
			for (s = 0; s < 9; s++)
			{
				if (perk_order[s] == 16)
				{
					perk_order[s] = 0;
					while (perk_order[s+1])
					{
						perk_order[s] = perk_order[s+1];
						perk_order[s+1] = 0;
					}
					break;
				}
			}
			current_perk_order--;
		}
		if (cl.perks & 32 && !(i & 32))
		{
			for (s = 0; s < 9; s++)
			{
				if (perk_order[s] == 32)
				{
					perk_order[s] = 0;
					while (perk_order[s+1])
					{
						perk_order[s] = perk_order[s+1];
						perk_order[s+1] = 0;
					}
					break;
				}
			}
			current_perk_order--;
		}
		if (cl.perks & 64 && !(i & 64))
		{
			for (s = 0; s < 9; s++)
			{
				if (perk_order[s] == 64)
				{
					perk_order[s] = 0;
					while (perk_order[s+1])
					{
						perk_order[s] = perk_order[s+1];
						perk_order[s+1] = 0;
					}
					break;
				}
			}
			current_perk_order--;
		}
		if (cl.perks & 128 && !(i & 128))
		{
			for (s = 0; s < 9; s++)
			{
				if (perk_order[s] == 128)
				{
					perk_order[s] = 0;
					while (perk_order[s+1])
					{
						perk_order[s] = perk_order[s+1];
						perk_order[s+1] = 0;
					}
					break;
				}
			}
			current_perk_order--;
		}
		cl.perks = i;
	}

	cl.onground = (bits & SU_ONGROUND) != 0;
	cl.inwater = (bits & SU_INWATER) != 0;

	if (bits & SU_WEAPONFRAME)
		cl.stats[STAT_WEAPONFRAME] = MSG_ReadByte ();
	else
		cl.stats[STAT_WEAPONFRAME] = 0;

	if (bits & SU_WEAPONSKIN)
		cl.stats[STAT_WEAPONSKIN] = MSG_ReadByte ();
	else
		cl.stats[STAT_WEAPONSKIN] = 0;

	if (bits & SU_WEAPON)
		i = MSG_ReadByte ();
	else
		i = 0;
	if (cl.stats[STAT_WEAPON] != i)
	{
		cl.stats[STAT_WEAPON] = i;
		Sbar_Changed ();
	}

	if (bits & SU_GRENADES)
		i = MSG_ReadLong ();
	else
		i = 0;

	if (cl.stats[STAT_GRENADES] != i)
	{
		HUD_Change_time = Sys_DoubleTime() + 5;
		cl.stats[STAT_GRENADES] = i;
	}

	i = MSG_ReadShort ();
	if (cl.stats[STAT_PRIGRENADES] != i)
	{
		HUD_Change_time = Sys_DoubleTime() + 5;
		cl.stats[STAT_PRIGRENADES] = i;
	}


	i = MSG_ReadShort ();
	if (cl.stats[STAT_SECGRENADES] != i)
	{
		HUD_Change_time = Sys_DoubleTime() + 5;
		cl.stats[STAT_SECGRENADES] = i;
	}

	i = MSG_ReadShort ();
	if (cl.stats[STAT_HEALTH] != i)
	{
		cl.stats[STAT_HEALTH] = i;
		Sbar_Changed ();
	}

	i = MSG_ReadByte ();
	if (cl.stats[STAT_AMMO] != i)
	{
		HUD_Change_time = Sys_DoubleTime() + 5;
		cl.stats[STAT_AMMO] = i;
	}

	i = MSG_ReadByte ();
	if (cl.stats[STAT_CURRENTMAG] != i)
	{
		HUD_Change_time = Sys_DoubleTime() + 5;
		cl.stats[STAT_CURRENTMAG] = i;
	}

	i = MSG_ReadByte ();
	if (cl.stats[STAT_ZOOM] != i)
		cl.stats[STAT_ZOOM] = i;

	i = MSG_ReadByte ();
	if (cl.stats[STAT_ACTIVEWEAPON] != i)
	{
		cl.stats[STAT_ACTIVEWEAPON] = i;
	    HUD_Change_time = Sys_DoubleTime() + 5;
	}

	// This corresponds to SV_WriteClientdataToMessage
	i = MSG_ReadByte ();
	if (cl.stats[STAT_ROUNDS] != i)
		cl.stats[STAT_ROUNDS] = i;

	i = MSG_ReadByte ();
	if (cl.stats[STAT_ROUNDCHANGE] != i)
		cl.stats[STAT_ROUNDCHANGE] = i;

	i = MSG_ReadByte ();
	if (cl.stats[STAT_X2] != i)
		cl.stats[STAT_X2] = i;

	i = MSG_ReadByte ();
	if (cl.stats[STAT_INSTA] != i)
		cl.stats[STAT_INSTA] = i;

	i = MSG_ReadByte ();
	if (cl.progress_bar != i)
		cl.progress_bar = i;

	i = MSG_ReadByte ();
	if (cl.stats[STAT_WEAPON2] != i)
		cl.stats[STAT_WEAPON2] = i;

	i = MSG_ReadByte ();
	if (cl.stats[STAT_WEAPON2SKIN] != i)
		cl.stats[STAT_WEAPON2SKIN] = i;

	i = MSG_ReadByte ();
	if (cl.stats[STAT_WEAPON2FRAME] != i)
		cl.stats[STAT_WEAPON2FRAME] = i;

	i = MSG_ReadByte ();
	if (cl.stats[STAT_CURRENTMAG2] != i)
		cl.stats[STAT_CURRENTMAG2] = i;


	//johnfitz -- PROTOCOL_FITZQUAKE
	if (bits & SU_WEAPON2)
		cl.stats[STAT_WEAPON] |= (MSG_ReadByte() << 8);
	if (bits & SU_AMMO2)
		cl.stats[STAT_AMMO] |= (MSG_ReadByte() << 8);
	if (bits & SU_WEAPONFRAME2)
		cl.stats[STAT_WEAPONFRAME] |= (MSG_ReadByte() << 8);
	if (bits & SU_WEAPONALPHA)
		cl.viewent.alpha = MSG_ReadByte();
	else
		cl.viewent.alpha = ENTALPHA_DEFAULT;
	//johnfitz
    
	//johnfitz -- lerping
	//ericw -- this was done before the upper 8 bits of cl.stats[STAT_WEAPON] were filled in, breaking on large maps like zendar.bsp
	if (cl.viewent.model != cl.model_precache[cl.stats[STAT_WEAPON]])
	{
		cl.viewent.lerpflags |= LERP_RESETANIM; //don't lerp animation across model changes
	}
	//johnfitz
}

/*
=====================
CL_ParseStatic
=====================
*/
void CL_ParseStatic (int version) //johnfitz -- added a parameter
{
	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, version); //johnfitz -- added second parameter

// copy it to the current state

	ent->model = cl.model_precache[ent->baseline.modelindex];
	ent->lerpflags |= LERP_RESETANIM; //johnfitz -- lerping
	ent->frame = ent->baseline.frame;

	ent->colormap = vid.colormap;
	ent->skinnum = ent->baseline.skin;
	ent->effects = ent->baseline.effects;
	ent->alpha = ent->baseline.alpha; //johnfitz -- alpha

	VectorCopy (ent->baseline.origin, ent->origin);
	VectorCopy (ent->baseline.angles, ent->angles);
	R_AddEfrags (ent);
}

/*
===================
CL_ParseStaticSound
===================
*/
void CL_ParseStaticSound (int version) //johnfitz -- added argument
{
	vec3_t		org;
	int			sound_num, vol, atten;
	int			i;

	for (i = 0; i < 3; i++)
		org[i] = MSG_ReadCoord (cl.protocolflags);

	//johnfitz -- PROTOCOL_FITZQUAKE
	if (version == 2)
		sound_num = MSG_ReadShort ();
	else
		sound_num = MSG_ReadByte ();
	//johnfitz

	vol = MSG_ReadByte ();
	atten = MSG_ReadByte ();

	S_StaticSound (cl.sound_precache[sound_num], org, vol, atten);
}

extern double Hitmark_Time;
extern int crosshair_spread;
extern double crosshair_spread_time;
double return_time;
/*
===================
CL_ParseWeaponFire
===================
*/
void CL_ParseWeaponFire (void)
{
	vec3_t		kick;
	return_time = (double)6/MSG_ReadLong ();
	crosshair_spread_time = return_time + sv.time;

	kick[0] = MSG_ReadCoord (cl.protocolflags)/5;
	kick[1] = MSG_ReadCoord (cl.protocolflags)/5;
	kick[2] = MSG_ReadCoord (cl.protocolflags)/5;

	if (!(cl.perks & 64)) {
		cl.gun_kick[0] += kick[0];
		cl.gun_kick[1] += kick[1];
		cl.gun_kick[2] += kick[2];
	}
}
/*
===================
CL_ParseLimbUpdate
===================
*/
void CL_ParseLimbUpdate (void)
{
    int limb = MSG_ReadByte();
    int zombieent = MSG_ReadShort();
    int limbent = MSG_ReadShort();
    switch (limb)
    {
        case 0://head
            cl_entities[zombieent].z_head = limbent;
            break;
        case 1://larm
            cl_entities[zombieent].z_larm = limbent;
            break;
        case 2://rarm
            cl_entities[zombieent].z_rarm = limbent;
            break;

    }
}


#define SHOWNET(x) if(cl_shownet.value==2)Con_Printf ("%3i:%s\n", msg_readcount-1, x);

/*
=====================
CL_ParseServerMessage
=====================
*/
void CL_ParseServerMessage (void)
{
	int			cmd;
	int			i;
	const char		*str; //johnfitz
	int			total, j, lastcmd; //johnfitz

//
// if recording demos, copy the message out
//
	if (cl_shownet.value == 1)
		Con_Printf ("%i ",net_message.cursize);
	else if (cl_shownet.value == 2)
		Con_Printf ("------------------\n");

	cl.onground = false;	// unless the server says otherwise
//
// parse the message
//
	MSG_BeginReading ();

	lastcmd = 0;
	while (1)
	{
		if (msg_badread)
			Host_Error ("CL_ParseServerMessage: Bad server message");

		cmd = MSG_ReadByte ();

		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 & U_SIGNAL) //johnfitz -- was 128, changed for clarity
		{
			SHOWNET("fast update");
			CL_ParseUpdate (cmd&127);
			continue;
		}

		SHOWNET(svc_strings[cmd]);

	// other commands
		switch (cmd)
		{
		default:
			Host_Error ("Illegible server message, previous was %s", svc_strings[lastcmd]); //johnfitz -- added svc_strings[lastcmd]
			break;

		case svc_nop:
		//	Con_Printf ("svc_nop\n");
			break;

		case svc_time:
			cl.mtime[1] = cl.mtime[0];
			cl.mtime[0] = MSG_ReadFloat ();
			break;

		case svc_clientdata:
			CL_ParseClientdata (); //johnfitz -- removed bits parameter, we will read this inside CL_ParseClientdata()
			break;

		case svc_version:
			i = MSG_ReadLong ();
			//johnfitz -- support multiple protocols
			if (i != PROTOCOL_NETQUAKE && i != PROTOCOL_FITZQUAKE && i != PROTOCOL_RMQ)
				Host_Error ("Server returned version %i, not %i or %i or %i", i, PROTOCOL_NETQUAKE, PROTOCOL_FITZQUAKE, PROTOCOL_RMQ);
			cl.protocol = i;
			//johnfitz
			break;

		case svc_disconnect:
			Host_EndGame ("Server disconnected\n");

		case svc_print:
			Con_Printf ("%s", MSG_ReadString ());
			break;

		case svc_centerprint:
			//johnfitz -- log centerprints to console
			str = MSG_ReadString ();
			SCR_CenterPrint (str);
			Con_LogCenterPrint (str);
			//johnfitz
			break;

		case svc_useprint:
			SCR_UsePrint (MSG_ReadByte (),MSG_ReadShort (),MSG_ReadByte ());
			break;

		case svc_stufftext:
			Cbuf_AddText (MSG_ReadString ());
			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 (cl.protocolflags);
			break;

		case svc_setview:
			cl.viewentity = MSG_ReadShort ();
			break;

		case svc_lightstyle:
			i = MSG_ReadByte ();
			if (i >= MAX_LIGHTSTYLES)
				Sys_Error ("svc_lightstyle > MAX_LIGHTSTYLES");
			q_strlcpy (cl_lightstyle[i].map, MSG_ReadString(), MAX_STYLESTRING);
			cl_lightstyle[i].length = Q_strlen(cl_lightstyle[i].map);
			//johnfitz -- save extra info
			if (cl_lightstyle[i].length)
			{
				total = 0;
				cl_lightstyle[i].peak = 'a';
				for (j=0; j<cl_lightstyle[i].length; j++)
				{
					total += cl_lightstyle[i].map[j] - 'a';
					cl_lightstyle[i].peak = q_max(cl_lightstyle[i].peak, cl_lightstyle[i].map[j]);
				}
				cl_lightstyle[i].average = total / cl_lightstyle[i].length + 'a';
			}
			else
				cl_lightstyle[i].average = cl_lightstyle[i].peak = 'm';
			//johnfitz
			break;

		case svc_sound:
			CL_ParseStartSoundPacket();
			break;

		case svc_stopsound:
			i = MSG_ReadShort();
			S_StopSound(i>>3, i&7);
			break;

		case svc_updatename:
			Sbar_Changed ();
			i = MSG_ReadByte ();
			if (i >= cl.maxclients)
				Host_Error ("CL_ParseServerMessage: svc_updatename > MAX_SCOREBOARD");
			q_strlcpy (cl.scores[i].name, MSG_ReadString(), MAX_SCOREBOARDNAME);
			break;

		case svc_updatepoints:
			i = MSG_ReadByte ();
			if (i >= cl.maxclients)
				Host_Error ("CL_ParseServerMessage: svc_updatepoints > MAX_SCOREBOARD");
			cl.scores[i].points = MSG_ReadLong ();
			break;

		case svc_updatekills:
			i = MSG_ReadByte ();
			if (i >= cl.maxclients)
				Host_Error ("CL_ParseServerMessage: svc_updatepoints > MAX_SCOREBOARD");
			cl.scores[i].kills = MSG_ReadShort ();
			break;

		case svc_particle:
			R_ParseParticleEffect ();
			break;

		case svc_spawnbaseline:
			i = MSG_ReadShort ();
			// must use CL_EntityNum() to force cl.num_entities up
			CL_ParseBaseline (CL_EntityNum(i), 1); // johnfitz -- added second parameter
			break;

		case svc_spawnstatic:
			CL_ParseStatic (1); //johnfitz -- added parameter
			break;

		case svc_temp_entity:
			CL_ParseTEnt ();
			break;

		case svc_setpause:
			cl.paused = MSG_ReadByte ();
			if (cl.paused)
			{
				CDAudio_Pause ();
				BGM_Pause ();
			}
			else
			{
				CDAudio_Resume ();
				BGM_Resume ();
			}
			break;

		case svc_signonnum:
			i = MSG_ReadByte ();
			if (i <= cls.signon)
				Host_Error ("Received signon %i when at %i", i, cls.signon);
			cls.signon = i;
			//johnfitz -- if signonnum==2, signon packet has been fully parsed, so check for excessive static ents and efrags
			if (i == 2)
			{
				if (cl.num_statics > 128)
					Con_DWarning ("%i static entities exceeds standard limit of 128 (max = %d).\n", cl.num_statics, MAX_STATIC_ENTITIES);
				R_CheckEfrags ();
			}
			//johnfitz
			CL_SignonReply ();
			break;

		case svc_updatestat:
			i = MSG_ReadByte ();
			if (i < 0 || i >= MAX_CL_STATS)
				Sys_Error ("svc_updatestat: %i is invalid", i);
			cl.stats[i] = MSG_ReadLong ();;
			break;

		case svc_spawnstaticsound:
			CL_ParseStaticSound (1); //johnfitz -- added parameter
			break;

		case svc_cdtrack:
			cl.cdtrack = MSG_ReadByte ();
			cl.looptrack = MSG_ReadByte ();
			if ( (cls.demoplayback || cls.demorecording) && (cls.forcetrack != -1) )
				BGM_PlayCDtrack ((byte)cls.forcetrack, true);
			else
				BGM_PlayCDtrack ((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
			//johnfitz -- log centerprints to console
			str = MSG_ReadString ();
			SCR_CenterPrint (str);
			Con_LogCenterPrint (str);
			//johnfitz
			break;

		case svc_cutscene:
			cl.intermission = 3;
			cl.completed_time = cl.time;
			vid.recalc_refdef = true;	// go to full screen
			//johnfitz -- log centerprints to console
			str = MSG_ReadString ();
			SCR_CenterPrint (str);
			Con_LogCenterPrint (str);
			//johnfitz
			break;

		case svc_sellscreen:
			Cmd_ExecuteString ("help", src_command);
			break;

		//johnfitz -- new svc types
		case svc_skybox:
			Sky_LoadSkyBox (MSG_ReadString());
			break;

		case svc_bf:
			Cmd_ExecuteString ("bf", src_command);
			break;

		case svc_fog:
			Fog_ParseServerMessage ();
			break;

		case svc_spawnbaseline2: //PROTOCOL_FITZQUAKE
			i = MSG_ReadShort ();
			// must use CL_EntityNum() to force cl.num_entities up
			CL_ParseBaseline (CL_EntityNum(i), 2);
			break;

		case svc_spawnstatic2: //PROTOCOL_FITZQUAKE
			CL_ParseStatic (2);
			break;

		case svc_spawnstaticsound2: //PROTOCOL_FITZQUAKE
			CL_ParseStaticSound (2);
			break;
		//johnfitz

		case svc_hitmark:
			Hitmark_Time = sv.time + 0.2;
			break;

		case svc_weaponfire:
			CL_ParseWeaponFire();
			break;

		case svc_limbupdate:
			CL_ParseLimbUpdate();
			break;

		//case svc_bspdecal:
		//	CL_ParseBSPDecal ();
		//	break;
		}

		lastcmd = cmd; //johnfitz
	}
}