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pr_cmds.c
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/* Copyright (C) 1996-1997 Id Software, Inc.
Copyright (C) 1999-2012 other authors as noted in code comments
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 3 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. */
#include "quakedef.h"
#define RETURN_EDICT(e) (((int *)pr_globals)[OFS_RETURN] = EDICT_TO_PROG(e))
#define PR_MAX_TEMPSTRING 2048 // 2001-10-25 Enhanced temp string handling by Maddes
/*
===============================================================================
BUILT-IN FUNCTIONS
===============================================================================
*/
// 2001-10-20 Extension System by LordHavoc start
char *pr_extensions[] =
{
// add the extension names here, syntax: "extensionname",
// Manoel Kasimier - begin
"DP_CL_LOADSKY", // console command "loadsky"?
"DP_EF_ADDITIVE",
"DP_EF_FULLBRIGHT",
"DP_EF_NODRAW",
"DP_ENT_ALPHA",
"DP_ENT_GLOW",
"DP_ENT_SCALE",
"DP_GFX_SKYBOX",
// Manoel Kasimier - end
//qb: added extensions begin
"DP_MOVETYPEBOUNCEMISSILE",
"DP_MOVETYPEFOLLOW",
"DP_SV_MODELFLAGS_AS_EFFECTS ",
"DP_ENT_EXTERIORMODELTOCLIENT",
"DP_SV_NODRAWTOCLIENT", //based on Team Xlink
"DP_SV_DRAWONLYTOCLIENT", //based on Team Xlink
//qb: added extensions end
// "DP_REGISTERCVAR", // 2001-09-18 New BuiltIn Function: cvar_create() by Maddes
"DP_QC_CHANGEPITCH",// 2001-09-16 Quake 2 builtin functions by id/Maddes
"DP_QC_COPYENTITY", // 2001-11-15 DarkPlaces general builtin functions by LordHavoc
"DP_QC_CVAR_STRING",// 2001-09-16 New BuiltIn Function: cvar_string() by Maddes
"DP_QC_ETOS", // 2001-09-16 Quake 2 builtin functions by id/Maddes
// 2001-11-15 DarkPlaces general builtin functions by LordHavoc start
"DP_QC_FINDCHAIN",
"DP_QC_FINDCHAINFLOAT",
"DP_QC_FINDFLOAT",
"DP_QC_MINMAXBOUND ",
"DP_QC_RANDOMVEC ",
"DP_QC_SINCOSSQRTPOW ",
"DP_QC_TRACEBOX ",
// 2001-11-15 DarkPlaces general builtin functions by LordHavoc end
"DP_QC_TRACETOSS", // 2001-09-16 Quake 2 builtin functions by id/Maddes
"DP_SND_DIRECTIONLESSATTNNONE", // Manoel Kasimier - sounds with no attenuation full volume on both sides?
"DP_SV_SETCOLOR", // 2001-11-15 DarkPlaces general builtin functions by LordHavoc
"DP_SV_ROTATINGBMODEL",
"FRIK_FILE",
"MK_EF_SHADOW", // Manoel Kasimier
/*
"DP_EF_BLUE "
"DP_EF_FLAME "
"DP_EF_NOSHADOW "
"DP_EF_RED "
"DP_EF_STARDUST "
"DP_ENT_CUSTOMCOLORMAP "
"DP_ENT_LOWPRECISION "
"DP_ENT_VIEWMODEL "
"DP_GFX_EXTERNALTEXTURES "
"DP_GFX_FOG "
"DP_GFX_QUAKE3MODELTAGS "
"DP_GFX_SKINFILES "
"DP_HALFLIFE_MAP "
"DP_HALFLIFE_MAP_CVAR "
"DP_INPUTBUTTONS " // ?
"DP_LITSUPPORT "
"DP_MONSTERWALK "
"DP_QC_FS_SEARCH " // Black: same as in the menu qc
"DP_QC_GETLIGHT "
"DP_QC_GETSURFACE "
"DP_QC_MULTIPLETEMPSTRINGS "
"DP_QC_TRACE_MOVETYPE_HITMODEL "
"DP_QC_TRACE_MOVETYPE_WORLDONLY "
"DP_QC_VECTORVECTORS "
"DP_QUAKE2_MODEL "
"DP_QUAKE3_MODEL "
"DP_REGISTERCVAR "
"DP_SND_OGGVORBIS "
"DP_SND_STEREOWAV "
"DP_SOLIDCORPSE "
"DP_SPRITE32 "
"DP_SV_EFFECT " // ?
"DP_SV_EXTERIORMODELTOCLIENT "
"DP_SV_PLAYERPHYSICS "
"DP_SV_SLOWMO "
"DP_TE_BLOOD "
"DP_TE_BLOODSHOWER "
"DP_TE_CUSTOMFLASH "
"DP_TE_EXPLOSIONRGB "
"DP_TE_FLAMEJET "
"DP_TE_PARTICLECUBE "
"DP_TE_PARTICLERAIN "
"DP_TE_PARTICLESNOW "
"DP_TE_PLASMABURN "
"DP_TE_QUADEFFECTS1 "
"DP_TE_SMALLFLASH "
"DP_TE_SPARK "
"DP_TE_STANDARDEFFECTBUILTINS "
"DP_VIEWZOOM "
"KRIMZON_SV_PARSECLIENTCOMMAND "
"NEH_CMD_PLAY2 "
"NEH_RESTOREGAME "
"TENEBRAE_GFX_DLIGHTS "
"TW_SV_STEPCONTROL "
*/
};
int pr_numextensions = sizeof(pr_extensions)/sizeof(pr_extensions[0]);
qboolean extension_find(char *name)
{
int i;
for (i=0; i < pr_numextensions; i++)
{
if (!Q_strcasecmp(pr_extensions[i], name))
return true;
}
return false;
}
/*
=================
PF_extension_find
returns true if the extension is supported by the server
float extension_find(string name)
=================
*/
void PF_extension_find (void)
{
G_FLOAT(OFS_RETURN) = extension_find(G_STRING(OFS_PARM0));
}
// 2001-10-20 Extension System by LordHavoc end
char pr_varstring_temp[PR_MAX_TEMPSTRING]; // 2001-10-25 Enhanced temp string handling by Maddes
char *PF_VarString (int first)
{
int i;
/* static char out[256];
out[0] = 0;
for (i=first ; i<pr_argc ; i++)
{
Q_strcat (out, G_STRING((OFS_PARM0+i*3)));
}
return out;
*/
// 2001-10-25 Enhanced temp string handling by Maddes start
unsigned int maxlen; // signed/unsigned mismatch fixed
char *add;
pr_varstring_temp[0] = 0;
for (i=first ; i < pr_argc ; i++)
{
maxlen = PR_MAX_TEMPSTRING - Q_strlen(pr_varstring_temp) - 1; // -1 is EndOfString
add = G_STRING((OFS_PARM0+i*3));
if (maxlen > Q_strlen(add))
{
Q_strcat (pr_varstring_temp, add);
}
else
{
strncat (pr_varstring_temp, add, maxlen);
pr_varstring_temp[PR_MAX_TEMPSTRING-1] = 0;
break; // can stop here
}
}
return pr_varstring_temp;
// 2001-10-25 Enhanced temp string handling by Maddes end
}
/*
=================
PF_errror
This is a TERMINAL error, which will kill off the entire server.
Dumps self.
error(value)
=================
*/
void PF_error (void)
{
char *s;
edict_t *ed;
s = PF_VarString(0);
Con_Printf ("======SERVER ERROR in %s:\n%s\n"
,pr_strings + pr_xfunction->s_name,s);
ed = PROG_TO_EDICT(pr_global_struct->self);
ED_Print (ed);
Host_Error ("Program error");
}
/*
=================
PF_objerror
Dumps out self, then an error message. The program is aborted and self is
removed, but the level can continue.
objerror(value)
=================
*/
void PF_objerror (void)
{
char *s;
edict_t *ed;
s = PF_VarString(0);
Con_Printf ("======OBJECT ERROR in %s:\n%s\n"
,pr_strings + pr_xfunction->s_name,s);
ed = PROG_TO_EDICT(pr_global_struct->self);
ED_Print (ed);
ED_Free (ed);
// Host_Error ("Program error"); // 2001-12-16 Do not stop server on objerror
}
/*
==============
PF_makevectors
Writes new values for v_forward, v_up, and v_right based on angles
makevectors(vector)
==============
*/
void PF_makevectors (void)
{
AngleVectors (G_VECTOR(OFS_PARM0), pr_global_struct->v_forward, pr_global_struct->v_right, pr_global_struct->v_up);
}
/*
=================
PF_setorigin
This is the only valid way to move an object without using the physics of the world (setting velocity and waiting). Directly changing origin will not set internal links correctly, so clipping would be messed up. This should be called when an object is spawned, and then only if it is teleported.
setorigin (entity, origin)
=================
*/
void PF_setorigin (void)
{
edict_t *e;
float *org;
e = G_EDICT(OFS_PARM0);
org = G_VECTOR(OFS_PARM1);
VectorCopy (org, e->v.origin);
SV_LinkEdict (e, false);
}
void SetMinMaxSize (edict_t *e, float *min, float *max, qboolean rotate)
{
float *angles;
vec3_t rmin, rmax;
float bounds[2][3];
float xvector[2], yvector[2];
float a;
vec3_t base, transformed;
int i, j, k, l;
for (i=0 ; i<3 ; i++)
if (min[i] > max[i])
PR_RunError ("backwards mins/maxs");
rotate = false; // FIXME: implement rotation properly again
if (!rotate)
{
VectorCopy (min, rmin);
VectorCopy (max, rmax);
}
else
{
// find min / max for rotations
angles = e->v.angles;
a = angles[1]/180 * M_PI;
xvector[0] = cos(a);
xvector[1] = sin(a);
yvector[0] = -sin(a);
yvector[1] = cos(a);
VectorCopy (min, bounds[0]);
VectorCopy (max, bounds[1]);
rmin[0] = rmin[1] = rmin[2] = 9999;
rmax[0] = rmax[1] = rmax[2] = -9999;
for (i=0 ; i<= 1 ; i++)
{
base[0] = bounds[i][0];
for (j=0 ; j<= 1 ; j++)
{
base[1] = bounds[j][1];
for (k=0 ; k<= 1 ; k++)
{
base[2] = bounds[k][2];
// transform the point
transformed[0] = xvector[0]*base[0] + yvector[0]*base[1];
transformed[1] = xvector[1]*base[0] + yvector[1]*base[1];
transformed[2] = base[2];
for (l=0 ; l<3 ; l++)
{
if (transformed[l] < rmin[l])
rmin[l] = transformed[l];
if (transformed[l] > rmax[l])
rmax[l] = transformed[l];
}
}
}
}
}
// set derived values
VectorCopy (rmin, e->v.mins);
VectorCopy (rmax, e->v.maxs);
VectorSubtract (max, min, e->v.size);
SV_LinkEdict (e, false);
}
/*
=================
PF_setsize
the size box is rotated by the current angle
setsize (entity, minvector, maxvector)
=================
*/
void PF_setsize (void)
{
edict_t *e;
float *min, *max;
e = G_EDICT(OFS_PARM0);
min = G_VECTOR(OFS_PARM1);
max = G_VECTOR(OFS_PARM2);
SetMinMaxSize (e, min, max, false);
}
/*
=================
PF_setmodel
setmodel(entity, model)
=================
*/
void PF_setmodel (void)
{
edict_t *e;
char *m, **check;
model_t *mod;
int i;
e = G_EDICT(OFS_PARM0);
m = G_STRING(OFS_PARM1);
// check to see if model was properly precached
for (i=0, check = sv.model_precache ; *check ; i++, check++)
if (!Q_strcmp(*check, m))
break;
if (!*check)
PR_RunError ("setmodel: no precache: %s\n", m);
e->v.model = m - pr_strings;
e->v.modelindex = i; //SV_ModelIndex (m);
mod = sv.models[ (int)e->v.modelindex]; // Mod_ForName (m, true);
if (mod)
SetMinMaxSize (e, mod->mins, mod->maxs, true);
else
SetMinMaxSize (e, vec3_origin, vec3_origin, true);
}
/*
=================
PF_bprint
broadcast print to everyone on server
bprint(value)
=================
*/
void PF_bprint (void)
{
char *s;
s = PF_VarString(0);
SV_BroadcastPrintf ("%s", s);
}
/*
=================
PF_sprint
single print to a specific client
sprint(clientent, value)
=================
*/
void PF_sprint (void)
{
char *s;
client_t *client;
int entnum;
entnum = G_EDICTNUM(OFS_PARM0);
s = PF_VarString(1);
if (entnum < 1 || entnum > svs.maxclients)
{
Con_Printf ("tried to sprint to a non-client\n");
return;
}
client = &svs.clients[entnum-1];
MSG_WriteByte (&client->message,svc_print);
MSG_WriteString (&client->message, s );
}
/*
=================
PF_centerprint
single print to a specific client
centerprint(clientent, value)
=================
*/
void PF_centerprint (void)
{
char *s;
client_t *client;
int entnum;
entnum = G_EDICTNUM(OFS_PARM0);
s = PF_VarString(1);
if (entnum < 1 || entnum > svs.maxclients)
{
Con_Printf ("tried to sprint to a non-client\n");
return;
}
client = &svs.clients[entnum-1];
MSG_WriteByte (&client->message,svc_centerprint);
MSG_WriteString (&client->message, s );
}
/*
=================
PF_normalize
vector normalize(vector)
=================
*/
void PF_normalize (void)
{
float *value1;
vec3_t newvalue;
float new;
value1 = G_VECTOR(OFS_PARM0);
new = value1[0] * value1[0] + value1[1] * value1[1] + value1[2]*value1[2];
new = sqrt(new);
if (new == 0)
newvalue[0] = newvalue[1] = newvalue[2] = 0;
else
{
new = 1/new;
newvalue[0] = value1[0] * new;
newvalue[1] = value1[1] * new;
newvalue[2] = value1[2] * new;
}
VectorCopy (newvalue, G_VECTOR(OFS_RETURN));
}
/*
=================
PF_vlen
scalar vlen(vector)
=================
*/
void PF_vlen (void)
{
float *value1;
float new;
value1 = G_VECTOR(OFS_PARM0);
new = value1[0] * value1[0] + value1[1] * value1[1] + value1[2]*value1[2];
new = sqrt(new);
G_FLOAT(OFS_RETURN) = new;
}
/*
=================
PF_vectoyaw
float vectoyaw(vector)
=================
*/
void PF_vectoyaw (void)
{
float *value1;
float yaw;
value1 = G_VECTOR(OFS_PARM0);
if (value1[1] == 0 && value1[0] == 0)
yaw = 0;
else
{
yaw = (atan2(value1[1], value1[0]) * 180 / M_PI);
//yaw = /*(int)*/ (atan2(value1[1], value1[0]) * 180 / M_PI); // Manoel Kasimier - 16-bit angles - edited
if (yaw < 0)
yaw += 360;
}
G_FLOAT(OFS_RETURN) = yaw;
}
/*
=================
PF_vectoangles
vector vectoangles(vector)
=================
*/
void PF_vectoangles (void)
{
float *value1;
float forward;
float yaw, pitch;
value1 = G_VECTOR(OFS_PARM0);
if (value1[1] == 0 && value1[0] == 0)
{
yaw = 0;
if (value1[2] > 0)
pitch = 90;
else
pitch = 270;
}
else
{
yaw = (atan2(value1[1], value1[0]) * 180 / M_PI);
//yaw = /*(int)*/ (atan2(value1[1], value1[0]) * 180 / M_PI); // Manoel Kasimier - 16-bit angles - edited
if (yaw < 0)
yaw += 360;
forward = sqrt (value1[0]*value1[0] + value1[1]*value1[1]);
pitch = (atan2(value1[2], forward) * 180 / M_PI);
if (pitch < 0)
pitch += 360;
}
G_FLOAT(OFS_RETURN+0) = pitch;
G_FLOAT(OFS_RETURN+1) = yaw;
G_FLOAT(OFS_RETURN+2) = 0;
}
/*
=================
PF_Random
Returns a number from 0<= num < 1
random()
=================
*/
void PF_random (void)
{
float num;
num = (rand ()&0x7fff) / ((float)0x7fff);
G_FLOAT(OFS_RETURN) = num;
}
/*
=================
PF_particle
particle(origin, color, count)
=================
*/
void PF_particle (void)
{
float *org, *dir;
float color;
float count;
org = G_VECTOR(OFS_PARM0);
dir = G_VECTOR(OFS_PARM1);
color = G_FLOAT(OFS_PARM2);
count = G_FLOAT(OFS_PARM3);
SV_StartParticle (org, dir, color, count);
}
/*
=================
PF_ambientsound
=================
*/
void PF_ambientsound (void)
{
char **check;
char *samp;
float *pos;
float vol, attenuation;
int i, soundnum;
pos = G_VECTOR (OFS_PARM0);
samp = G_STRING(OFS_PARM1);
vol = G_FLOAT(OFS_PARM2);
attenuation = G_FLOAT(OFS_PARM3);
// check to see if samp was properly precached
for (soundnum=0, check = sv.sound_precache ; *check ; check++, soundnum++)
if (!Q_strcmp(*check,samp))
break;
if (!*check)
{
Con_Printf ("ambient sound: no precache: %s\n", samp);
return;
}
// qb: soundnum as byte for compatibility (Marcher) Ambients should be low number, anyway.
if (sv.protocol != PROTOCOL_NETQUAKE)
{
if (soundnum >MAX_SOUNDS)
{
Con_Printf ("ambient sound: soundnum > MAX_SOUNDS.\n");
return;
}
}
else if (soundnum >256)
{
Con_Printf ("ambient sound: soundnum >256.\n");
return;
}
// add an svc_spawnambient command to the level signon packet
if (sv.protocol == PROTOCOL_NETQUAKE || (soundnum < 256))
MSG_WriteByte (&sv.signon,svc_spawnstaticsound);
else
MSG_WriteByte (&sv.signon,svc_spawnstaticsound_large); //qb: for mods that stuffcmd byte (Marcher, grrr...)
for (i=0 ; i<3 ; i++)
MSG_WriteCoord(&sv.signon, pos[i]);
if (sv.protocol != PROTOCOL_NETQUAKE && (soundnum > 255))
MSG_WriteShort (&sv.signon, soundnum); //qb: more ambient sounds, breaks some mods
else
MSG_WriteByte (&sv.signon, soundnum);
MSG_WriteByte (&sv.signon, vol*255);
MSG_WriteByte (&sv.signon, attenuation*64);
}
/*
=================
PF_sound
Each entity can have eight independent sound sources, like voice,
weapon, feet, etc.
Channel 0 is an auto-allocate channel, the others override anything
allready running on that entity/channel pair.
An attenuation of 0 will play full volume everywhere in the level.
Larger attenuations will drop off.
=================
*/
void PF_sound (void)
{
char *sample;
int channel;
edict_t *entity;
int volume;
float attenuation;
entity = G_EDICT(OFS_PARM0);
channel = G_FLOAT(OFS_PARM1);
sample = G_STRING(OFS_PARM2);
volume = G_FLOAT(OFS_PARM3) * 255;
attenuation = G_FLOAT(OFS_PARM4);
if (volume < 0 || volume > 255)
Sys_Error ("SV_StartSound: volume = %i", volume);
if (attenuation < 0 || attenuation > 4)
Sys_Error ("SV_StartSound: attenuation = %f", attenuation);
if (channel < 0 || channel > 7)
Sys_Error ("SV_StartSound: channel = %i", channel);
SV_StartSound (entity, channel, sample, volume, attenuation);
}
//qb: plays sound to an individual client... I hear voices...
void PF_localsound (void)
{
char *sample;
char volume;
client_t *client;
int entnum;
entnum = G_EDICTNUM(OFS_PARM0);
if (entnum < 1 || entnum > svs.maxclients)
{
Con_Printf ("tried to send local sound to a non-client\n");
return;
}
client = &svs.clients[entnum-1];
sample = G_STRING(OFS_PARM1);
volume = (char)(G_FLOAT(OFS_PARM2) * 255);
SV_LocalSound (client, sample, volume);
}
/*
=================
PF_break
break()
=================
*/
void PF_break (void)
{
Con_Printf ("break statement\n");
*(int *)-4 = 0; // dump to debugger
// PR_RunError ("break statement");
}
/*
=================
PF_traceline
Used for use tracing and shot targeting
Traces are blocked by bbox and exact bsp entityes, and also slide box entities
if the tryents flag is set.
traceline (vector1, vector2, tryents)
=================
*/
void PF_traceline (void)
{
float *v1, *v2;
trace_t trace;
int nomonsters;
edict_t *ent;
v1 = G_VECTOR(OFS_PARM0);
v2 = G_VECTOR(OFS_PARM1);
nomonsters = G_FLOAT(OFS_PARM2);
ent = G_EDICT(OFS_PARM3);
trace = SV_Move (v1, vec3_origin, vec3_origin, v2, nomonsters, ent);
pr_global_struct->trace_allsolid = trace.allsolid;
pr_global_struct->trace_startsolid = trace.startsolid;
pr_global_struct->trace_fraction = trace.fraction;
pr_global_struct->trace_inwater = trace.inwater;
pr_global_struct->trace_inopen = trace.inopen;
VectorCopy (trace.endpos, pr_global_struct->trace_endpos);
VectorCopy (trace.plane.normal, pr_global_struct->trace_plane_normal);
pr_global_struct->trace_plane_dist = trace.plane.dist;
if (trace.ent)
pr_global_struct->trace_ent = EDICT_TO_PROG(trace.ent);
else
pr_global_struct->trace_ent = EDICT_TO_PROG(sv.edicts);
}
// 2001-09-16 Quake 2 builtin functions by id/Maddes
extern trace_t SV_Trace_Toss (edict_t *ent, edict_t *ignore);
void PF_TraceToss (void)
{
trace_t trace;
edict_t *ent;
edict_t *ignore;
ent = G_EDICT(OFS_PARM0);
ignore = G_EDICT(OFS_PARM1);
trace = SV_Trace_Toss (ent, ignore);
pr_global_struct->trace_allsolid = trace.allsolid;
pr_global_struct->trace_startsolid = trace.startsolid;
pr_global_struct->trace_fraction = trace.fraction;
pr_global_struct->trace_inwater = trace.inwater;
pr_global_struct->trace_inopen = trace.inopen;
VectorCopy (trace.endpos, pr_global_struct->trace_endpos);
VectorCopy (trace.plane.normal, pr_global_struct->trace_plane_normal);
pr_global_struct->trace_plane_dist = trace.plane.dist;
if (trace.ent)
pr_global_struct->trace_ent = EDICT_TO_PROG(trace.ent);
else
pr_global_struct->trace_ent = EDICT_TO_PROG(sv.edicts);
}
// 2001-09-16 Quake 2 builtin functions by id/Maddes
/*
=================
PF_checkpos
Returns true if the given entity can move to the given position from it's
current position by walking or rolling.
FIXME: make work...
scalar checkpos (entity, vector)
=================
*/
byte checkpvs[MAX_MAP_LEAFS/8];
int PF_newcheckclient (int check)
{
int i;
byte *pvs;
edict_t *ent;
mleaf_t *leaf;
vec3_t org;
// cycle to the next one
if (check < 1)
check = 1;
if (check > svs.maxclients)
check = svs.maxclients;
if (check == svs.maxclients)
i = 1;
else
i = check + 1;
for ( ; ; i++)
{
if (i == svs.maxclients+1)
i = 1;
ent = EDICT_NUM(i);
if (i == check)
break; // didn't find anything else
if (ent->free)
continue;
if (ent->v.health <= 0)
continue;
if ((int)ent->v.flags & FL_NOTARGET)
continue;
// anything that is a client, or has a client as an enemy
break;
}
// get the PVS for the entity
VectorAdd (ent->v.origin, ent->v.view_ofs, org);
leaf = Mod_PointInLeaf (org, sv.worldmodel);
pvs = Mod_LeafPVS (leaf, sv.worldmodel);
memcpy (checkpvs, pvs, (sv.worldmodel->numleafs+7)>>3 );
return i;
}
/*
=================
PF_checkclient
Returns a client (or object that has a client enemy) that would be a
valid target.
If there are more than one valid options, they are cycled each frame
If (self.origin + self.viewofs) is not in the PVS of the current target,
it is not returned at all.
name checkclient ()
=================
*/
#define MAX_CHECK 16
int c_invis, c_notvis;
void PF_checkclient (void)
{
edict_t *ent, *self;
mleaf_t *leaf;
int l;
vec3_t view;
// find a new check if on a new frame
if (sv.time - sv.lastchecktime >= 0.1)
{
sv.lastcheck = PF_newcheckclient (sv.lastcheck);
sv.lastchecktime = sv.time;
}
// return check if it might be visible
ent = EDICT_NUM(sv.lastcheck);
if (ent->free || ent->v.health <= 0)
{
RETURN_EDICT(sv.edicts);
return;
}
// if current entity can't possibly see the check entity, return 0
self = PROG_TO_EDICT(pr_global_struct->self);
VectorAdd (self->v.origin, self->v.view_ofs, view);
leaf = Mod_PointInLeaf (view, sv.worldmodel);
l = (leaf - sv.worldmodel->leafs) - 1;
if ( (l<0) || !(checkpvs[l>>3] & (1<<(l&7)) ) )
{
c_notvis++;
RETURN_EDICT(sv.edicts);
return;
}
// might be able to see it
c_invis++;
RETURN_EDICT(ent);
}
//============================================================================
/*
=================
PF_stuffcmd
Sends text over to the client's execution buffer