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/*
Copyright (C) 1996-2001 Id Software, Inc.
Copyright (C) 2002-2009 John Fitzgibbons and others
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_main.c -- client main loop
#include "quakedef.h"
#include "bgmusic.h"
// we need to declare some mouse variables here, because the menu system
// references them even when on a unix system.
// these two are not intended to be set directly
cvar_t cl_name = {"_cl_name", "player", CVAR_ARCHIVE};
cvar_t cl_color = {"_cl_color", "0", CVAR_ARCHIVE};
cvar_t cl_shownet = {"cl_shownet","0",CVAR_NONE}; // can be 0, 1, or 2
cvar_t cl_nolerp = {"cl_nolerp","0",CVAR_NONE};
cvar_t cfg_unbindall = {"cfg_unbindall", "1", CVAR_ARCHIVE};
cvar_t lookspring = {"lookspring","0", CVAR_ARCHIVE};
cvar_t lookstrafe = {"lookstrafe","0", CVAR_ARCHIVE};
cvar_t sensitivity = {"sensitivity","3", CVAR_ARCHIVE};
cvar_t m_pitch = {"m_pitch","0.022", CVAR_ARCHIVE};
cvar_t m_yaw = {"m_yaw","0.022", CVAR_ARCHIVE};
cvar_t m_forward = {"m_forward","1", CVAR_ARCHIVE};
cvar_t m_side = {"m_side","0.8", CVAR_ARCHIVE};
cvar_t cl_maxpitch = {"cl_maxpitch", "90", CVAR_ARCHIVE}; //johnfitz -- variable pitch clamping
cvar_t cl_minpitch = {"cl_minpitch", "-90", CVAR_ARCHIVE}; //johnfitz -- variable pitch clamping
client_static_t cls;
client_state_t cl;
// FIXME: put these on hunk?
entity_t cl_static_entities[MAX_STATIC_ENTITIES];
lightstyle_t cl_lightstyle[MAX_LIGHTSTYLES];
dlight_t cl_dlights[MAX_DLIGHTS];
entity_t *cl_entities; //johnfitz -- was a static array, now on hunk
int cl_max_edicts; //johnfitz -- only changes when new map loads
int cl_numvisedicts;
entity_t *cl_visedicts[MAX_VISEDICTS];
extern cvar_t r_lerpmodels, r_lerpmove; //johnfitz
/*
=====================
CL_ClearState
=====================
*/
void CL_ClearState (void)
{
if (!sv.active)
Host_ClearMemory ();
// wipe the entire cl structure
memset (&cl, 0, sizeof(cl));
SZ_Clear (&cls.message);
// clear other arrays
memset (cl_dlights, 0, sizeof(cl_dlights));
memset (cl_lightstyle, 0, sizeof(cl_lightstyle));
memset (cl_temp_entities, 0, sizeof(cl_temp_entities));
memset (cl_beams, 0, sizeof(cl_beams));
//johnfitz -- cl_entities is now dynamically allocated
cl_max_edicts = CLAMP (MIN_EDICTS,(int)max_edicts.value,MAX_EDICTS);
cl_entities = (entity_t *) Hunk_AllocName (cl_max_edicts*sizeof(entity_t), "cl_entities");
//johnfitz
}
/*
=====================
CL_Disconnect
Sends a disconnect message to the server
This is also called on Host_Error, so it shouldn't cause any errors
=====================
*/
void CL_Disconnect (void)
{
if (key_dest == key_message)
Key_EndChat (); // don't get stuck in chat mode
// stop sounds (especially looping!)
S_StopAllSounds (true);
BGM_Stop();
CDAudio_Stop();
// if running a local server, shut it down
if (cls.demoplayback)
CL_StopPlayback ();
else if (cls.state == ca_connected)
{
if (cls.demorecording)
CL_Stop_f ();
Con_DPrintf ("Sending clc_disconnect\n");
SZ_Clear (&cls.message);
MSG_WriteByte (&cls.message, clc_disconnect);
NET_SendUnreliableMessage (cls.netcon, &cls.message);
SZ_Clear (&cls.message);
NET_Close (cls.netcon);
cls.state = ca_disconnected;
if (sv.active)
Host_ShutdownServer(false);
}
cls.demoplayback = cls.timedemo = false;
cls.demopaused = false;
cls.signon = 0;
cl.intermission = 0;
}
void CL_Disconnect_f (void)
{
CL_Disconnect ();
if (sv.active)
Host_ShutdownServer (false);
}
/*
=====================
CL_EstablishConnection
Host should be either "local" or a net address to be passed on
=====================
*/
void CL_EstablishConnection (const char *host)
{
if (cls.state == ca_dedicated)
return;
if (cls.demoplayback)
return;
CL_Disconnect ();
cls.netcon = NET_Connect (host);
if (!cls.netcon)
Host_Error ("CL_Connect: connect failed\n");
Con_DPrintf ("CL_EstablishConnection: connected to %s\n", host);
cls.demonum = -1; // not in the demo loop now
cls.state = ca_connected;
cls.signon = 0; // need all the signon messages before playing
MSG_WriteByte (&cls.message, clc_nop); // NAT Fix from ProQuake
}
/*
=====================
CL_SignonReply
An svc_signonnum has been received, perform a client side setup
=====================
*/
void CL_SignonReply (void)
{
char str[8192];
Con_DPrintf ("CL_SignonReply: %i\n", cls.signon);
switch (cls.signon)
{
case 1:
MSG_WriteByte (&cls.message, clc_stringcmd);
MSG_WriteString (&cls.message, "prespawn");
break;
case 2:
MSG_WriteByte (&cls.message, clc_stringcmd);
MSG_WriteString (&cls.message, va("name \"%s\"\n", cl_name.string));
MSG_WriteByte (&cls.message, clc_stringcmd);
MSG_WriteString (&cls.message, va("color %i %i\n", ((int)cl_color.value)>>4, ((int)cl_color.value)&15));
MSG_WriteByte (&cls.message, clc_stringcmd);
sprintf (str, "spawn %s", cls.spawnparms);
MSG_WriteString (&cls.message, str);
break;
case 3:
MSG_WriteByte (&cls.message, clc_stringcmd);
MSG_WriteString (&cls.message, "begin");
Cache_Report (); // print remaining memory
break;
case 4:
SCR_EndLoadingPlaque (); // allow normal screen updates
break;
}
}
/*
=====================
CL_NextDemo
Called to play the next demo in the demo loop
=====================
*/
void CL_NextDemo (void)
{
char str[1024];
if (cls.demonum == -1)
return; // don't play demos
if (!cls.demos[cls.demonum][0] || cls.demonum == MAX_DEMOS)
{
cls.demonum = 0;
if (!cls.demos[cls.demonum][0])
{
Con_Printf ("No demos listed with startdemos\n");
cls.demonum = -1;
CL_Disconnect();
return;
}
}
SCR_BeginLoadingPlaque ();
sprintf (str,"playdemo %s\n", cls.demos[cls.demonum]);
Cbuf_InsertText (str);
cls.demonum++;
}
/*
==============
CL_PrintEntities_f
==============
*/
void CL_PrintEntities_f (void)
{
entity_t *ent;
int i;
if (cls.state != ca_connected)
return;
for (i=0,ent=cl_entities ; i<cl.num_entities ; i++,ent++)
{
Con_Printf ("%3i:",i);
if (!ent->model)
{
Con_Printf ("EMPTY\n");
continue;
}
Con_Printf ("%s:%2i (%5.1f,%5.1f,%5.1f) [%5.1f %5.1f %5.1f]\n"
,ent->model->name,ent->frame, ent->origin[0], ent->origin[1], ent->origin[2], ent->angles[0], ent->angles[1], ent->angles[2]);
}
}
/*
===============
CL_AllocDlight
===============
*/
dlight_t *CL_AllocDlight (int key)
{
int i;
dlight_t *dl;
// first look for an exact key match
if (key)
{
dl = cl_dlights;
for (i=0 ; i<MAX_DLIGHTS ; i++, dl++)
{
if (dl->key == key)
{
memset (dl, 0, sizeof(*dl));
dl->key = key;
dl->color[0] = dl->color[1] = dl->color[2] = 1; //johnfitz -- lit support via lordhavoc
return dl;
}
}
}
// then look for anything else
dl = cl_dlights;
for (i=0 ; i<MAX_DLIGHTS ; i++, dl++)
{
if (dl->die < cl.time)
{
memset (dl, 0, sizeof(*dl));
dl->key = key;
dl->color[0] = dl->color[1] = dl->color[2] = 1; //johnfitz -- lit support via lordhavoc
return dl;
}
}
dl = &cl_dlights[0];
memset (dl, 0, sizeof(*dl));
dl->key = key;
dl->color[0] = dl->color[1] = dl->color[2] = 1; //johnfitz -- lit support via lordhavoc
return dl;
}
/*
===============
CL_DecayLights
===============
*/
void CL_DecayLights (void)
{
int i;
dlight_t *dl;
float time;
time = cl.time - cl.oldtime;
dl = cl_dlights;
for (i=0 ; i<MAX_DLIGHTS ; i++, dl++)
{
if (dl->die < cl.time || !dl->radius)
continue;
dl->radius -= time*dl->decay;
if (dl->radius < 0)
dl->radius = 0;
}
}
/*
===============
CL_LerpPoint
Determines the fraction between the last two messages that the objects
should be put at.
===============
*/
float CL_LerpPoint (void)
{
float f, frac;
f = cl.mtime[0] - cl.mtime[1];
if (!f || cls.timedemo || sv.active)
{
cl.time = cl.mtime[0];
return 1;
}
if (f > 0.1) // dropped packet, or start of demo
{
cl.mtime[1] = cl.mtime[0] - 0.1;
f = 0.1;
}
frac = (cl.time - cl.mtime[1]) / f;
if (frac < 0)
{
if (frac < -0.01)
cl.time = cl.mtime[1];
frac = 0;
}
else if (frac > 1)
{
if (frac > 1.01)
cl.time = cl.mtime[0];
frac = 1;
}
//johnfitz -- better nolerp behavior
if (cl_nolerp.value)
return 1;
//johnfitz
return frac;
}
/*
===============
CL_RelinkEntities
===============
*/
void CL_RelinkEntities (void)
{
entity_t *ent;
int i, j;
float frac, f, d;
vec3_t delta;
float bobjrotate;
vec3_t oldorg;
dlight_t *dl;
// determine partial update time
frac = CL_LerpPoint ();
cl_numvisedicts = 0;
//
// interpolate player info
//
for (i=0 ; i<3 ; i++)
cl.velocity[i] = cl.mvelocity[1][i] +
frac * (cl.mvelocity[0][i] - cl.mvelocity[1][i]);
if (cls.demoplayback)
{
// interpolate the angles
for (j=0 ; j<3 ; j++)
{
d = cl.mviewangles[0][j] - cl.mviewangles[1][j];
if (d > 180)
d -= 360;
else if (d < -180)
d += 360;
cl.viewangles[j] = cl.mviewangles[1][j] + frac*d;
}
}
bobjrotate = anglemod(100*cl.time);
// start on the entity after the world
for (i=1,ent=cl_entities+1 ; i<cl.num_entities ; i++,ent++)
{
if (!ent->model)
{ // empty slot
// ericw -- efrags are only used for static entities in GLQuake
// ent can't be static, so this is a no-op.
//if (ent->forcelink)
// R_RemoveEfrags (ent); // just became empty
continue;
}
// if the object wasn't included in the last packet, remove it
if (ent->msgtime != cl.mtime[0])
{
ent->model = NULL;
ent->lerpflags |= LERP_RESETMOVE|LERP_RESETANIM; //johnfitz -- next time this entity slot is reused, the lerp will need to be reset
continue;
}
VectorCopy (ent->origin, oldorg);
if (ent->forcelink)
{ // the entity was not updated in the last message
// so move to the final spot
VectorCopy (ent->msg_origins[0], ent->origin);
VectorCopy (ent->msg_angles[0], ent->angles);
}
else
{ // if the delta is large, assume a teleport and don't lerp
f = frac;
for (j=0 ; j<3 ; j++)
{
delta[j] = ent->msg_origins[0][j] - ent->msg_origins[1][j];
if (delta[j] > 100 || delta[j] < -100)
{
f = 1; // assume a teleportation, not a motion
ent->lerpflags |= LERP_RESETMOVE; //johnfitz -- don't lerp teleports
}
}
//johnfitz -- don't cl_lerp entities that will be r_lerped
if (r_lerpmove.value && (ent->lerpflags & LERP_MOVESTEP))
f = 1;
//johnfitz
// interpolate the origin and angles
for (j=0 ; j<3 ; j++)
{
ent->origin[j] = ent->msg_origins[1][j] + f*delta[j];
d = ent->msg_angles[0][j] - ent->msg_angles[1][j];
if (d > 180)
d -= 360;
else if (d < -180)
d += 360;
ent->angles[j] = ent->msg_angles[1][j] + f*d;
}
}
// rotate binary objects locally
if (ent->model->flags & EF_ROTATE)
ent->angles[1] = bobjrotate;
if (ent->effects & EF_BRIGHTFIELD)
R_EntityParticles (ent);
if (ent->effects & EF_MUZZLEFLASH)
{
vec3_t fv, rv, uv;
dl = CL_AllocDlight (i);
VectorCopy (ent->origin, dl->origin);
dl->origin[2] += 16;
AngleVectors (ent->angles, fv, rv, uv);
VectorMA (dl->origin, 18, fv, dl->origin);
dl->radius = 200 + (rand()&31);
dl->minlight = 32;
dl->die = cl.time + 0.1;
//johnfitz -- assume muzzle flash accompanied by muzzle flare, which looks bad when lerped
if (r_lerpmodels.value != 2)
{
if (ent == &cl_entities[cl.viewentity])
cl.viewent.lerpflags |= LERP_RESETANIM|LERP_RESETANIM2; //no lerping for two frames
else
ent->lerpflags |= LERP_RESETANIM|LERP_RESETANIM2; //no lerping for two frames
}
//johnfitz
}
if (ent->effects & EF_BRIGHTLIGHT)
{
dl = CL_AllocDlight (i);
VectorCopy (ent->origin, dl->origin);
dl->origin[2] += 16;
dl->radius = 400 + (rand()&31);
dl->die = cl.time + 0.001;
}
if (ent->effects & EF_DIMLIGHT)
{
dl = CL_AllocDlight (i);
VectorCopy (ent->origin, dl->origin);
dl->radius = 200 + (rand()&31);
dl->die = cl.time + 0.001;
}
if (ent->model->flags & EF_GIB)
R_RocketTrail (oldorg, ent->origin, 2);
else if (ent->model->flags & EF_ZOMGIB)
R_RocketTrail (oldorg, ent->origin, 4);
else if (ent->model->flags & EF_TRACER)
R_RocketTrail (oldorg, ent->origin, 3);
else if (ent->model->flags & EF_TRACER2)
R_RocketTrail (oldorg, ent->origin, 5);
else if (ent->model->flags & EF_ROCKET)
{
R_RocketTrail (oldorg, ent->origin, 0);
dl = CL_AllocDlight (i);
VectorCopy (ent->origin, dl->origin);
dl->radius = 200;
dl->die = cl.time + 0.01;
}
else if (ent->model->flags & EF_GRENADE)
R_RocketTrail (oldorg, ent->origin, 1);
else if (ent->model->flags & EF_TRACER3)
R_RocketTrail (oldorg, ent->origin, 6);
ent->forcelink = false;
if (i == cl.viewentity && !chase_active.value)
continue;
if (cl_numvisedicts < MAX_VISEDICTS)
{
cl_visedicts[cl_numvisedicts] = ent;
cl_numvisedicts++;
}
}
}
/*
===============
CL_ReadFromServer
Read all incoming data from the server
===============
*/
int CL_ReadFromServer (void)
{
int ret;
extern int num_temp_entities; //johnfitz
int num_beams = 0; //johnfitz
int num_dlights = 0; //johnfitz
beam_t *b; //johnfitz
dlight_t *l; //johnfitz
int i; //johnfitz
cl.oldtime = cl.time;
cl.time += host_frametime;
do
{
ret = CL_GetMessage ();
if (ret == -1)
Host_Error ("CL_ReadFromServer: lost server connection");
if (!ret)
break;
cl.last_received_message = realtime;
CL_ParseServerMessage ();
} while (ret && cls.state == ca_connected);
if (cl_shownet.value)
Con_Printf ("\n");
CL_RelinkEntities ();
CL_UpdateTEnts ();
//johnfitz -- devstats
//visedicts
if (cl_numvisedicts > 256 && dev_peakstats.visedicts <= 256)
Con_DWarning ("%i visedicts exceeds standard limit of 256 (max = %d).\n", cl_numvisedicts, MAX_VISEDICTS);
dev_stats.visedicts = cl_numvisedicts;
dev_peakstats.visedicts = q_max(cl_numvisedicts, dev_peakstats.visedicts);
//temp entities
if (num_temp_entities > 64 && dev_peakstats.tempents <= 64)
Con_DWarning ("%i tempentities exceeds standard limit of 64 (max = %d).\n", num_temp_entities, MAX_TEMP_ENTITIES);
dev_stats.tempents = num_temp_entities;
dev_peakstats.tempents = q_max(num_temp_entities, dev_peakstats.tempents);
//beams
for (i=0, b=cl_beams ; i< MAX_BEAMS ; i++, b++)
if (b->model && b->endtime >= cl.time)
num_beams++;
if (num_beams > 24 && dev_peakstats.beams <= 24)
Con_DWarning ("%i beams exceeded standard limit of 24 (max = %d).\n", num_beams, MAX_BEAMS);
dev_stats.beams = num_beams;
dev_peakstats.beams = q_max(num_beams, dev_peakstats.beams);
//dlights
for (i=0, l=cl_dlights ; i<MAX_DLIGHTS ; i++, l++)
if (l->die >= cl.time && l->radius)
num_dlights++;
if (num_dlights > 32 && dev_peakstats.dlights <= 32)
Con_DWarning ("%i dlights exceeded standard limit of 32 (max = %d).\n", num_dlights, MAX_DLIGHTS);
dev_stats.dlights = num_dlights;
dev_peakstats.dlights = q_max(num_dlights, dev_peakstats.dlights);
//johnfitz
//
// bring the links up to date
//
return 0;
}
/*
=================
CL_SendCmd
=================
*/
void CL_SendCmd (void)
{
usercmd_t cmd;
if (cls.state != ca_connected)
return;
if (cls.signon == SIGNONS)
{
// get basic movement from keyboard
CL_BaseMove (&cmd);
// allow mice or other external controllers to add to the move
IN_Move (&cmd);
// send the unreliable message
CL_SendMove (&cmd);
}
if (cls.demoplayback)
{
SZ_Clear (&cls.message);
return;
}
// send the reliable message
if (!cls.message.cursize)
return; // no message at all
if (!NET_CanSendMessage (cls.netcon))
{
Con_DPrintf ("CL_SendCmd: can't send\n");
return;
}
if (NET_SendMessage (cls.netcon, &cls.message) == -1)
Host_Error ("CL_SendCmd: lost server connection");
SZ_Clear (&cls.message);
}
/*
=============
CL_Tracepos_f -- johnfitz
display impact point of trace along VPN
=============
*/
void CL_Tracepos_f (void)
{
vec3_t v, w;
if (cls.state != ca_connected)
return;
VectorMA(r_refdef.vieworg, 8192.0, vpn, v);
TraceLine(r_refdef.vieworg, v, w);
if (VectorLength(w) == 0)
Con_Printf ("Tracepos: trace didn't hit anything\n");
else
Con_Printf ("Tracepos: (%i %i %i)\n", (int)w[0], (int)w[1], (int)w[2]);
}
/*
=============
CL_Viewpos_f -- johnfitz
display client's position and angles
=============
*/
void CL_Viewpos_f (void)
{
if (cls.state != ca_connected)
return;
#if 0
//camera position
Con_Printf ("Viewpos: (%i %i %i) %i %i %i\n",
(int)r_refdef.vieworg[0],
(int)r_refdef.vieworg[1],
(int)r_refdef.vieworg[2],
(int)r_refdef.viewangles[PITCH],
(int)r_refdef.viewangles[YAW],
(int)r_refdef.viewangles[ROLL]);
#else
//player position
Con_Printf ("Viewpos: (%i %i %i) %i %i %i\n",
(int)cl_entities[cl.viewentity].origin[0],
(int)cl_entities[cl.viewentity].origin[1],
(int)cl_entities[cl.viewentity].origin[2],
(int)cl.viewangles[PITCH],
(int)cl.viewangles[YAW],
(int)cl.viewangles[ROLL]);
#endif
}
/*
=================
CL_Init
=================
*/
void CL_Init (void)
{
SZ_Alloc (&cls.message, 1024);
CL_InitInput ();
CL_InitTEnts ();
Cvar_RegisterVariable (&cl_name);
Cvar_RegisterVariable (&cl_color);
Cvar_RegisterVariable (&cl_upspeed);
Cvar_RegisterVariable (&cl_forwardspeed);
Cvar_RegisterVariable (&cl_backspeed);
Cvar_RegisterVariable (&cl_sidespeed);
Cvar_RegisterVariable (&cl_movespeedkey);
Cvar_RegisterVariable (&cl_yawspeed);
Cvar_RegisterVariable (&cl_pitchspeed);
Cvar_RegisterVariable (&cl_anglespeedkey);
Cvar_RegisterVariable (&cl_shownet);
Cvar_RegisterVariable (&cl_nolerp);
Cvar_RegisterVariable (&lookspring);
Cvar_RegisterVariable (&lookstrafe);
Cvar_RegisterVariable (&sensitivity);
Cvar_RegisterVariable (&cl_alwaysrun);
Cvar_RegisterVariable (&m_pitch);
Cvar_RegisterVariable (&m_yaw);
Cvar_RegisterVariable (&m_forward);
Cvar_RegisterVariable (&m_side);
Cvar_RegisterVariable (&cfg_unbindall);
Cvar_RegisterVariable (&cl_maxpitch); //johnfitz -- variable pitch clamping
Cvar_RegisterVariable (&cl_minpitch); //johnfitz -- variable pitch clamping
Cmd_AddCommand ("entities", CL_PrintEntities_f);
Cmd_AddCommand ("disconnect", CL_Disconnect_f);
Cmd_AddCommand ("record", CL_Record_f);
Cmd_AddCommand ("stop", CL_Stop_f);
Cmd_AddCommand ("playdemo", CL_PlayDemo_f);
Cmd_AddCommand ("timedemo", CL_TimeDemo_f);
Cmd_AddCommand ("tracepos", CL_Tracepos_f); //johnfitz
Cmd_AddCommand ("viewpos", CL_Viewpos_f); //johnfitz
}
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