quakespasm/Quake/cl_main.c
Ozkan Sezer 6f43d5ca99 cl_main.c (CL_EstablishConnection): Send a clc_nop at the end of the function.
This has been referred to by Baker as the NAT fix of ProQuake. Applied upon
Steven's suggestion and it made me able to connect to bigfoot.quake1.net:26001
too.


git-svn-id: svn://svn.code.sf.net/p/quakespasm/code/trunk/quakespasm@98 af15c1b1-3010-417e-b628-4374ebc0bcbd
2010-03-05 16:11:06 +00:00

809 lines
18 KiB
C

/*
Copyright (C) 1996-2001 Id Software, Inc.
Copyright (C) 2002-2009 John Fitzgibbons and others
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"
// 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", true};
cvar_t cl_color = {"_cl_color", "0", true};
cvar_t cl_shownet = {"cl_shownet","0"}; // can be 0, 1, or 2
cvar_t cl_nolerp = {"cl_nolerp","0"};
cvar_t lookspring = {"lookspring","0", true};
cvar_t lookstrafe = {"lookstrafe","0", true};
cvar_t sensitivity = {"sensitivity","3", true};
cvar_t m_pitch = {"m_pitch","0.022", true};
cvar_t m_yaw = {"m_yaw","0.022", true};
cvar_t m_forward = {"m_forward","1", true};
cvar_t m_side = {"m_side","0.8", true};
cvar_t cl_maxpitch = {"cl_maxpitch", "90", true}; //johnfitz -- variable pitch clamping
cvar_t cl_minpitch = {"cl_minpitch", "-90", true}; //johnfitz -- variable pitch clamping
client_static_t cls;
client_state_t cl;
// FIXME: put these on hunk?
efrag_t cl_efrags[MAX_EFRAGS];
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)
{
int i;
if (!sv.active)
Host_ClearMemory ();
// wipe the entire cl structure
memset (&cl, 0, sizeof(cl));
SZ_Clear (&cls.message);
// clear other arrays
memset (cl_efrags, 0, sizeof(cl_efrags));
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 = Hunk_AllocName (cl_max_edicts*sizeof(entity_t), "cl_entities");
//johnfitz
//
// allocate the efrags and chain together into a free list
//
cl.free_efrags = cl_efrags;
for (i=0 ; i<MAX_EFRAGS-1 ; i++)
cl.free_efrags[i].entnext = &cl.free_efrags[i+1];
cl.free_efrags[i].entnext = NULL;
}
/*
=====================
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)
{
// stop sounds (especially looping!)
S_StopAllSounds (true);
// 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.signon = 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 (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;
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]);
}
}
//johnfitz -- deleted SetPal()
/*
===============
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
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_Warning ("%i visedicts exceeds standard limit of 256.\n", cl_numvisedicts);
dev_stats.visedicts = cl_numvisedicts;
dev_peakstats.visedicts = max(cl_numvisedicts, dev_peakstats.visedicts);
//temp entities
if (num_temp_entities > 64 && dev_peakstats.tempents <= 64)
Con_Warning ("%i tempentities exceeds standard limit of 64.\n", num_temp_entities);
dev_stats.tempents = num_temp_entities;
dev_peakstats.tempents = 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_Warning ("%i beams exceeded standard limit of 24.\n", num_beams);
dev_stats.beams = num_beams;
dev_peakstats.beams = 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_Warning ("%i dlights exceeded standard limit of 32.\n", num_dlights);
dev_stats.dlights = num_dlights;
dev_peakstats.dlights = 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_WriteToServer: can't send\n");
return;
}
if (NET_SendMessage (cls.netcon, &cls.message) == -1)
Host_Error ("CL_WriteToServer: 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;
VectorScale(vpn, 8192.0, v);
TraceLine(r_refdef.vieworg, v, w);
if (Length(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 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, NULL);
Cvar_RegisterVariable (&cl_color, NULL);
Cvar_RegisterVariable (&cl_upspeed, NULL);
Cvar_RegisterVariable (&cl_forwardspeed, NULL);
Cvar_RegisterVariable (&cl_backspeed, NULL);
Cvar_RegisterVariable (&cl_sidespeed, NULL);
Cvar_RegisterVariable (&cl_movespeedkey, NULL);
Cvar_RegisterVariable (&cl_yawspeed, NULL);
Cvar_RegisterVariable (&cl_pitchspeed, NULL);
Cvar_RegisterVariable (&cl_anglespeedkey, NULL);
Cvar_RegisterVariable (&cl_shownet, NULL);
Cvar_RegisterVariable (&cl_nolerp, NULL);
Cvar_RegisterVariable (&lookspring, NULL);
Cvar_RegisterVariable (&lookstrafe, NULL);
Cvar_RegisterVariable (&sensitivity, NULL);
Cvar_RegisterVariable (&m_pitch, NULL);
Cvar_RegisterVariable (&m_yaw, NULL);
Cvar_RegisterVariable (&m_forward, NULL);
Cvar_RegisterVariable (&m_side, NULL);
Cvar_RegisterVariable (&cl_maxpitch, NULL); //johnfitz -- variable pitch clamping
Cvar_RegisterVariable (&cl_minpitch, NULL); //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
}