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quakeforge/nq/source/sv_pr_cmds.c

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/*
sv_pr_cmds.c
(description)
Copyright (C) 1996-1997 Id Software, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include <ctype.h>
#include "QF/cbuf.h"
#include "QF/clip_hull.h"
#include "QF/cmd.h"
#include "QF/cvar.h"
#include "QF/msg.h"
#include "QF/ruamoko.h"
#include "QF/set.h"
#include "QF/sys.h"
#include "QF/va.h"
#include "compat.h"
#include "world.h"
#include "nq/include/host.h"
#include "nq/include/server.h"
#include "nq/include/sv_progs.h"
/* BUILT-IN FUNCTIONS */
/*
PF_error
This is a TERMINAL error, which will kill off the entire server.
Dumps self.
error (value)
// void (string e) error
*/
static void
PF_error (progs_t *pr, void *data)
{
const char *s;
edict_t *ed;
s = PF_VarString (pr, 0, 1);
Sys_Printf ("======SERVER ERROR in %s:\n%s\n",
PR_GetString (pr, pr->pr_xfunction->descriptor->name), s);
ed = PROG_TO_EDICT (pr, *sv_globals.self);
ED_Print (pr, ed, 0);
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 (string e) objerror
*/
static void
PF_objerror (progs_t *pr, void *data)
{
const char *s;
edict_t *ed;
s = PF_VarString (pr, 0, 1);
Sys_Printf ("======OBJECT ERROR in %s:\n%s\n",
PR_GetString (pr, pr->pr_xfunction->descriptor->name), s);
ed = PROG_TO_EDICT (pr, *sv_globals.self);
ED_Print (pr, ed, 0);
ED_Free (pr, ed);
Host_Error ("Program error");
}
/*
PF_makevectors
Writes new values for v_forward, v_up, and v_right based on angles
void (vector angles) makevectors
*/
static void
PF_makevectors (progs_t *pr, void *data)
{
AngleVectors (P_VECTOR (pr, 0), *sv_globals.v_forward,
*sv_globals.v_right, *sv_globals.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 (entity e, vector o) setorigin
*/
static void
PF_setorigin (progs_t *pr, void *data)
{
edict_t *e;
float *org;
e = P_EDICT (pr, 0);
org = P_VECTOR (pr, 1);
VectorCopy (org, SVvector (e, origin));
SV_LinkEdict (e, false);
}
static void
SetMinMaxSize (progs_t *pr, edict_t *e, const vec3_t min, const vec3_t max,
qboolean rotate)
{
float a;
float bounds[2][3];
float xvector[2], yvector[2];
float *angles;
int i, j, k, l;
vec3_t rmin, rmax, base, transformed;
for (i = 0; i < 3; i++)
if (min[i] > max[i])
PR_RunError (pr, "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 = SVvector (e, 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, SVvector (e, mins));
VectorCopy (rmax, SVvector (e, maxs));
VectorSubtract (max, min, SVvector (e, size));
SV_LinkEdict (e, false);
}
/*
PF_setsize
the size box is rotated by the current angle
setsize (entity, minvector, maxvector)
// void (entity e, vector min, vector max) setsize
*/
static void
PF_setsize (progs_t *pr, void *data)
{
edict_t *e;
float *min, *max;
e = P_EDICT (pr, 0);
min = P_VECTOR (pr, 1);
max = P_VECTOR (pr, 2);
SetMinMaxSize (pr, e, min, max, false);
}
/*
PF_setmodel
setmodel (entity, model)
// void (entity e, string m) setmodel
*/
static void
PF_setmodel (progs_t *pr, void *data)
{
edict_t *e;
const char *m, **check;
int i;
model_t *mod;
e = P_EDICT (pr, 0);
m = P_GSTRING (pr, 1);
// check to see if model was properly precached
for (i = 0, check = sv.model_precache; *check; i++, check++)
if (!strcmp (*check, m))
break;
if (!*check)
PR_RunError (pr, "no precache: %s\n", m);
SVstring (e, model) = PR_SetString (pr, m);
SVfloat (e, modelindex) = i;
mod = sv.models[i];
if (mod) {
// FIXME disabled for now as setting clipmins/maxs is currently
// too messy
//if (mod->type == mod_brush)
// SetMinMaxSize (pr, e, mod->clipmins, mod->clipmaxs, true);
//else
SetMinMaxSize (pr, e, mod->mins, mod->maxs, true);
} else {
SetMinMaxSize (pr, e, vec3_origin, vec3_origin, true);
}
}
/*
PF_bprint
broadcast print to everyone on server
bprint (value)
// void (string s) bprint
*/
static void
PF_bprint (progs_t *pr, void *data)
{
const char *s;
s = PF_VarString (pr, 0, 1);
SV_BroadcastPrintf ("%s", s);
}
/*
PF_sprint
single print to a specific client
sprint (clientent, value)
// void (entity client, string s) sprint
*/
static void
PF_sprint (progs_t *pr, void *data)
{
const char *s;
client_t *client;
unsigned entnum;
entnum = P_EDICTNUM (pr, 0);
s = PF_VarString (pr, 1, 2);
if (entnum < 1 || entnum > svs.maxclients) {
Sys_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 (...) centerprint
*/
static void
PF_centerprint (progs_t *pr, void *data)
{
const char *s;
client_t *cl;
unsigned entnum;
entnum = P_EDICTNUM (pr, 0);
s = PF_VarString (pr, 1, 2);
if (entnum < 1 || entnum > svs.maxclients) {
Sys_Printf ("tried to sprint to a non-client\n");
return;
}
cl = &svs.clients[entnum - 1];
MSG_WriteByte (&cl->message, svc_centerprint);
MSG_WriteString (&cl->message, s);
}
// void (vector o, vector d, float color, float count) particle
static void
PF_particle (progs_t *pr, void *data)
{
float *org, *dir;
float color;
float count;
org = P_VECTOR (pr, 0);
dir = P_VECTOR (pr, 1);
color = P_FLOAT (pr, 2);
count = P_FLOAT (pr, 3);
SV_StartParticle (org, dir, color, count);
}
/*
PF_ambientsound
// void (vector pos, string samp, float vol, float atten) ambientsound
*/
static void
PF_ambientsound (progs_t *pr, void *data)
{
const char **check;
const char *samp;
float *pos;
float vol, attenuation;
int soundnum;
int large = false;
pos = P_VECTOR (pr, 0);
samp = P_GSTRING (pr, 1);
vol = P_FLOAT (pr, 2);
attenuation = P_FLOAT (pr, 3);
// check to see if samp was properly precached
for (soundnum = 0, check = sv.sound_precache; *check; check++, soundnum++)
if (!strcmp (*check, samp))
break;
if (!*check) {
Sys_Printf ("no precache: %s\n", samp);
return;
}
if (soundnum > 255) {
if (sv.protocol == PROTOCOL_NETQUAKE)
return;
large = true;
}
// add an svc_spawnambient command to the level signon packet
MSG_WriteByte (&sv.signon,
large ? svc_spawnstaticsound2 : svc_spawnstaticsound);
MSG_WriteCoordV (&sv.signon, pos);
if (large)
MSG_WriteShort (&sv.signon, soundnum);
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 independant sound sources, like voice,
weapon, feet, etc.
Channel 0 is an auto-allocate channel, the others override anything
already running on that entity/channel pair.
An attenuation of 0 will play full volume everywhere in the level.
Larger attenuations will drop off.
// void (entity e, float chan, string samp) sound
*/
static void
PF_sound (progs_t *pr, void *data)
{
const char *sample;
edict_t *entity;
float attenuation;
int channel, volume;
entity = P_EDICT (pr, 0);
channel = P_FLOAT (pr, 1);
sample = P_GSTRING (pr, 2);
volume = P_FLOAT (pr, 3) * 255;
attenuation = P_FLOAT (pr, 4);
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);
}
/*
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)
// float (vector v1, vector v2, float tryents) traceline
*/
static void
PF_traceline (progs_t *pr, void *data)
{
float *v1, *v2;
edict_t *ent;
int nomonsters;
trace_t trace;
v1 = P_VECTOR (pr, 0);
v2 = P_VECTOR (pr, 1);
nomonsters = P_FLOAT (pr, 2);
ent = P_EDICT (pr, 3);
trace = SV_Move (v1, vec3_origin, vec3_origin, v2, nomonsters, ent);
*sv_globals.trace_allsolid = trace.allsolid;
*sv_globals.trace_startsolid = trace.startsolid;
*sv_globals.trace_fraction = trace.fraction;
*sv_globals.trace_inwater = trace.inwater;
*sv_globals.trace_inopen = trace.inopen;
VectorCopy (trace.endpos, *sv_globals.trace_endpos);
VectorCopy (trace.plane.normal, *sv_globals.trace_plane_normal);
*sv_globals.trace_plane_dist = trace.plane.dist;
if (trace.ent)
*sv_globals.trace_ent = EDICT_TO_PROG (pr, trace.ent);
else
*sv_globals.trace_ent = EDICT_TO_PROG (pr, sv.edicts);
}
/*
PF_tracebox
// void (vector start, vector mins, vector maxs, vector end, float type,
// entity passent) tracebox
Wrapper around SV_Move, this makes PF_movetoground and PF_traceline
redundant.
*/
static void
PF_tracebox (progs_t *pr, void *data)
{
edict_t *ent;
float *start, *end, *mins, *maxs;
int type;
trace_t trace;
start = P_VECTOR (pr, 0);
mins = P_VECTOR (pr, 1);
maxs = P_VECTOR (pr, 2);
end = P_VECTOR (pr, 3);
type = P_FLOAT (pr, 4);
ent = P_EDICT (pr, 5);
trace = SV_Move (start, mins, maxs, end, type, ent);
*sv_globals.trace_allsolid = trace.allsolid;
*sv_globals.trace_startsolid = trace.startsolid;
*sv_globals.trace_fraction = trace.fraction;
*sv_globals.trace_inwater = trace.inwater;
*sv_globals.trace_inopen = trace.inopen;
VectorCopy (trace.endpos, *sv_globals.trace_endpos);
VectorCopy (trace.plane.normal, *sv_globals.trace_plane_normal);
*sv_globals.trace_plane_dist = trace.plane.dist;
if (trace.ent)
*sv_globals.trace_ent = EDICT_TO_PROG (pr, trace.ent);
else
*sv_globals.trace_ent = EDICT_TO_PROG (pr, sv.edicts);
}
/*
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)
*/
static void __attribute__ ((used))
PF_checkpos (progs_t *pr, void *data)
{
}
static set_t *checkpvs;
static unsigned
PF_newcheckclient (progs_t *pr, unsigned check)
{
edict_t *ent;
unsigned i;
mleaf_t *leaf;
// 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 (pr, i);
if (i == check)
break; // didn't find anything else
if (ent->free)
continue;
if (SVfloat (ent, health) <= 0)
continue;
if ((int) SVfloat (ent, flags) & FL_NOTARGET)
continue;
// anything that is a client, or has a client as an enemy
break;
}
// get the PVS for the entity
vec4f_t org;
VectorAdd (SVvector (ent, origin), SVvector (ent, view_ofs), org);
org[3] = 1;
leaf = Mod_PointInLeaf (org, sv.worldmodel);
if (!checkpvs) {
checkpvs = set_new_size (sv.worldmodel->brush.visleafs);
}
set_assign (checkpvs, Mod_LeafPVS (leaf, sv.worldmodel));
return i;
}
#define MAX_CHECK 16
int c_invis, c_notvis;
/*
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 ()
// entity () clientlist
*/
static void
PF_checkclient (progs_t *pr, void *data)
{
edict_t *ent, *self;
int l;
mleaf_t *leaf;
// find a new check if on a new frame
if (sv.time - sv.lastchecktime >= 0.1) {
sv.lastcheck = PF_newcheckclient (pr, sv.lastcheck);
sv.lastchecktime = sv.time;
}
// return check if it might be visible
ent = EDICT_NUM (pr, sv.lastcheck);
if (ent->free || SVfloat (ent, health) <= 0) {
RETURN_EDICT (pr, sv.edicts);
return;
}
// if current entity can't possibly see the check entity, return 0
self = PROG_TO_EDICT (pr, *sv_globals.self);
vec4f_t view;
VectorAdd (SVvector (self, origin), SVvector (self, view_ofs), view);
view[3] = 1;
leaf = Mod_PointInLeaf (view, sv.worldmodel);
l = (leaf - sv.worldmodel->brush.leafs) - 1;
if (!set_is_member (checkpvs, l)) {
c_notvis++;
RETURN_EDICT (pr, sv.edicts);
return;
}
// might be able to see it
c_invis++;
RETURN_EDICT (pr, ent);
}
/*
PF_stuffcmd
Sends text over to the client's execution buffer
stuffcmd (clientent, value)
// void (entity client, string s) stuffcmd
*/
static void
PF_stuffcmd (progs_t *pr, void *data)
{
const char *str;
client_t *old;
pr_uint_t entnum;
entnum = P_EDICTNUM (pr, 0);
if (entnum < 1 || entnum > svs.maxclients)
PR_RunError (pr, "Parm 0 not a client");
str = P_GSTRING (pr, 1);
old = host_client;
host_client = &svs.clients[entnum - 1];
Host_ClientCommands ("%s", str);
host_client = old;
}
/*
PF_localcmd
Inserts text into the server console's execution buffer
localcmd (string)
// void (string s) localcmd
*/
static void
PF_localcmd (progs_t *pr, void *data)
{
const char *str;
str = P_GSTRING (pr, 0);
Cbuf_AddText (host_cbuf, str);
}
/*
PF_findradius
Returns a chain of entities that have origins within a spherical area
findradius (origin, radius)
// entity (vector org, float rad) findradius
*/
static void
PF_findradius (progs_t *pr, void *data)
{
edict_t *ent, *chain;
float rsqr;
vec_t *emins, *emaxs, *org;
pr_uint_t i;
vec3_t eorg;
chain = (edict_t *) sv.edicts;
org = P_VECTOR (pr, 0);
rsqr = P_FLOAT (pr, 1);
rsqr *= rsqr; // Square early, sqrt never
ent = NEXT_EDICT (pr, sv.edicts);
for (i = 1; i < sv.num_edicts; i++, ent = NEXT_EDICT (pr, ent)) {
if (ent->free)
continue;
if (SVfloat (ent, solid) == SOLID_NOT)
continue;
emins = SVvector (ent, absmin);
emaxs = SVvector (ent, absmax);
for (int j = 0; j < 3; j++)
eorg[j] = org[j] - 0.5 * (emins[j] + emaxs[j]);
if (DotProduct (eorg, eorg) > rsqr)
continue;
SVentity (ent, chain) = EDICT_TO_PROG (pr, chain);
chain = ent;
}
RETURN_EDICT (pr, chain);
}
// entity () spawn
static void
PF_spawn (progs_t *pr, void *data)
{
edict_t *ed;
ed = ED_Alloc (pr);
RETURN_EDICT (pr, ed);
}
// void (entity e) remove
static void
PF_remove (progs_t *pr, void *data)
{
edict_t *ed;
ed = P_EDICT (pr, 0);
ED_Free (pr, ed);
}
static void
PR_CheckEmptyString (progs_t *pr, const char *s)
{
if (s[0] <= ' ')
PR_RunError (pr, "Bad string");
}
static int
do_precache (progs_t *pr, const char **cache, int max, const char *name,
const char *func)
{
int i;
char *s;
if (sv.state != ss_loading)
PR_RunError (pr, "%s: Precache can be done only in spawn functions",
func);
PR_CheckEmptyString (pr, name);
s = Hunk_TempAlloc (0, strlen (name) + 1);
for (i = 0; *name; i++, name++) {
int c = (byte) *name;
s[i] = tolower (c);
}
s[i] = 0;
for (i = 0; i < MAX_SOUNDS; i++) {
if (!cache[i]) {
char *c = Hunk_Alloc (0, strlen (s) + 1);
strcpy (c, s);
cache[i] = c; // blah, const
Sys_MaskPrintf (SYS_dev, "%s: %3d %s\n", func, i, s);
return i;
}
if (!strcmp (cache[i], s))
return i;
}
PR_RunError (pr, "%s: overflow", func);
}
// string (string s) precache_file
// string (string s) precache_file2
static void
PF_precache_file (progs_t *pr, void *data)
{
// precache_file is used only to copy files with qcc, it does nothing
R_INT (pr) = P_INT (pr, 0);
}
#define PF_precache_file2 PF_precache_file
// void (string s) precache_sound
// string (string s) precache_sound2
static void
PF_precache_sound (progs_t *pr, void *data)
{
do_precache (pr, sv.sound_precache, MAX_SOUNDS, P_GSTRING (pr, 0),
"precache_sound");
R_INT (pr) = P_INT (pr, 0);
}
#define PF_precache_sound2 PF_precache_sound
// void (string s) precache_model
// string (string s) precache_model2
static void
PF_precache_model (progs_t *pr, void *data)
{
int ind;
const char *mod = P_GSTRING (pr, 0);
ind = do_precache (pr, sv.model_precache, MAX_MODELS, mod,
"precache_model");
sv.models[ind] = Mod_ForName (mod, true);
R_INT (pr) = P_INT (pr, 0);
}
#define PF_precache_model2 PF_precache_model
/*
PF_walkmove
float (float yaw, float dist) walkmove
// float (float yaw, float dist) walkmove
*/
static void
PF_walkmove (progs_t *pr, void *data)
{
edict_t *ent;
float yaw, dist;
int oldself;
vec3_t move;
ent = PROG_TO_EDICT (pr, *sv_globals.self);
yaw = P_FLOAT (pr, 0);
dist = P_FLOAT (pr, 1);
if (!((int) SVfloat (ent, flags) & (FL_ONGROUND | FL_FLY | FL_SWIM))) {
R_FLOAT (pr) = 0;
return;
}
yaw = yaw * M_PI * 2 / 360;
move[0] = cos (yaw) * dist;
move[1] = sin (yaw) * dist;
move[2] = 0;
// save program state, because SV_movestep may call other progs
oldself = *sv_globals.self;
R_FLOAT (pr) = SV_movestep (ent, move, true);
// restore program state
*sv_globals.self = oldself;
}
/*
PF_droptofloor
void () droptofloor
// float () droptofloor
*/
static void
PF_droptofloor (progs_t *pr, void *data)
{
edict_t *ent;
trace_t trace;
vec3_t end;
ent = PROG_TO_EDICT (pr, *sv_globals.self);
VectorCopy (SVvector (ent, origin), end);
end[2] -= 256;
trace = SV_Move (SVvector (ent, origin), SVvector (ent, mins),
SVvector (ent, maxs), end, false, ent);
if (trace.fraction == 1 || trace.allsolid) {
R_FLOAT (pr) = 0;
} else {
VectorCopy (trace.endpos, SVvector (ent, origin));
SV_LinkEdict (ent, false);
SVfloat (ent, flags) = (int) SVfloat (ent, flags) | FL_ONGROUND;
SVentity (ent, groundentity) = EDICT_TO_PROG (pr, trace.ent);
R_FLOAT (pr) = 1;
}
}
/*
PF_lightstyle
void (float style, string value) lightstyle
// void (float style, string value) lightstyle
*/
static void
PF_lightstyle (progs_t *pr, void *data)
{
const char *val;
client_t *cl;
int style;
unsigned j;
style = P_FLOAT (pr, 0);
val = P_GSTRING (pr, 1);
// change the string in sv
sv.lightstyles[style] = val;
// send message to all clients on this server
if (sv.state != ss_active)
return;
for (j = 0, cl = svs.clients; j < svs.maxclients; j++, cl++)
if (cl->active || cl->spawned) {
MSG_WriteByte (&cl->message, svc_lightstyle);
MSG_WriteByte (&cl->message, style);
MSG_WriteString (&cl->message, val);
}
}
// float (entity e) checkbottom
static void
PF_checkbottom (progs_t *pr, void *data)
{
edict_t *ent;
ent = P_EDICT (pr, 0);
R_FLOAT (pr) = SV_CheckBottom (ent);
}
// float (vector v) pointcontents
static void
PF_pointcontents (progs_t *pr, void *data)
{
float *v;
v = P_VECTOR (pr, 0);
R_FLOAT (pr) = SV_PointContents (v);
}
float sv_aim;
static cvar_t sv_aim_cvar = {
.name = "sv_aim",
.description =
"None",
.default_value = "0.93",
.flags = CVAR_NONE,
.value = { .type = &cexpr_float, .value = &sv_aim },
};
/*
PF_aim
Pick a vector for the player to shoot along
vector aim (entity, missilespeed)
// vector (entity e, float speed) aim
*/
static void
PF_aim (progs_t *pr, void *data)
{
edict_t *ent, *check, *bestent;
float dist, bestdist, speed;
float *mins, *maxs, *org;
pr_uint_t i;
trace_t tr;
vec3_t start, dir, end, bestdir;
ent = P_EDICT (pr, 0);
speed = P_FLOAT (pr, 1);
(void) speed; //FIXME
VectorCopy (SVvector (ent, origin), start);
start[2] += 20;
// try sending a trace straight
VectorCopy (*sv_globals.v_forward, dir);
VectorMultAdd (start, 2048, dir, end);
tr = SV_Move (start, vec3_origin, vec3_origin, end, false, ent);
if (tr.ent && SVfloat (tr.ent, takedamage) == DAMAGE_AIM
&& (!teamplay || SVfloat (ent, team) <= 0
|| SVfloat (ent, team) != SVfloat (tr.ent, team))) {
VectorCopy (*sv_globals.v_forward, R_VECTOR (pr));
return;
}
// try all possible entities
VectorCopy (dir, bestdir);
bestdist = sv_aim;
bestent = NULL;
check = NEXT_EDICT (pr, sv.edicts);
for (i = 1; i < sv.num_edicts; i++, check = NEXT_EDICT (pr, check)) {
if (SVfloat (check, takedamage) != DAMAGE_AIM)
continue;
if (check == ent)
continue;
if (teamplay && SVfloat (ent, team) > 0
&& SVfloat (ent, team) == SVfloat (check, team))
continue; // don't aim at teammate
mins = SVvector (check, mins);
maxs = SVvector (check, maxs);
org = SVvector (check, origin);
for (int j = 0; j < 3; j++)
end[j] = org[j] + 0.5 * (mins[j] + maxs[j]);
VectorSubtract (end, start, dir);
VectorNormalize (dir);
dist = DotProduct (dir, *sv_globals.v_forward);
if (dist < bestdist)
continue; // to far to turn
tr = SV_Move (start, vec3_origin, vec3_origin, end, false, ent);
if (tr.ent == check) { // can shoot at this one
bestdist = dist;
bestent = check;
}
}
if (bestent) {
VectorSubtract (SVvector (bestent, origin), SVvector (ent, origin),
dir);
dist = DotProduct (dir, *sv_globals.v_forward);
VectorScale (*sv_globals.v_forward, dist, end);
end[2] = dir[2];
VectorNormalize (end);
VectorCopy (end, R_VECTOR (pr));
} else {
VectorCopy (bestdir, R_VECTOR (pr));
}
}
/*
PF_changeyaw
This was a major timewaster in progs, so it was converted to C
// void () ChangeYaw
*/
void
PF_changeyaw (progs_t *pr, void *data)
{
edict_t *ent;
float ideal, current, move, speed;
ent = PROG_TO_EDICT (pr, *sv_globals.self);
current = anglemod (SVvector (ent, angles)[1]);
ideal = SVfloat (ent, ideal_yaw);
speed = SVfloat (ent, yaw_speed);
if (current == ideal)
return;
move = ideal - current;
if (ideal > current) {
if (move >= 180)
move = move - 360;
} else {
if (move <= -180)
move = move + 360;
}
if (move > 0) {
if (move > speed)
move = speed;
} else {
if (move < -speed)
move = -speed;
}
SVvector (ent, angles)[1] = anglemod (current + move);
}
/* MESSAGE WRITING */
#define MSG_BROADCAST 0 // unreliable to all
#define MSG_ONE 1 // reliable to one (msg_entity)
#define MSG_ALL 2 // reliable to all
#define MSG_INIT 3 // write to the init string
static __attribute__((pure)) sizebuf_t *
WriteDest (progs_t *pr)
{
pr_uint_t entnum;
int dest;
edict_t *ent;
dest = P_FLOAT (pr, 0);
switch (dest) {
case MSG_BROADCAST:
return &sv.datagram;
case MSG_ONE:
ent = PROG_TO_EDICT (pr, *sv_globals.msg_entity);
entnum = NUM_FOR_EDICT (pr, ent);
if (entnum < 1 || entnum > svs.maxclients)
PR_RunError (pr, "WriteDest: not a client");
return &svs.clients[entnum - 1].message;
case MSG_ALL:
return &sv.reliable_datagram;
case MSG_INIT:
return &sv.signon;
default:
PR_RunError (pr, "WriteDest: bad destination");
break;
}
return NULL;
}
// void (float to, ...) WriteBytes
static void
PF_WriteBytes (progs_t *pr, void *data)
{
int i, p;
int argc = pr->pr_argc - 1;
pr_type_t **argv = pr->pr_params + 1;
sizebuf_t *msg = WriteDest (pr);
if (pr->progs->version == PROG_VERSION) {
__auto_type va_list = &P_PACKED (pr, pr_va_list_t, 1);
argc = va_list->count;
if (argc) {
argv = alloca (argc * sizeof (pr_type_t *));
for (int i = 0; i < argc; i++) {
argv[i] = &pr->pr_globals[va_list->list + i * 4];
}
} else {
argv = 0;
}
}
for (i = 0; i < argc; i++) {
p = PR_PTR (float, argv[i]);
MSG_WriteByte (msg, p);
}
}
// void (float to, float f) WriteByte
static void
PF_WriteByte (progs_t *pr, void *data)
{
MSG_WriteByte (WriteDest (pr), P_FLOAT (pr, 1));
}
// void (float to, float f) WriteChar
static void
PF_WriteChar (progs_t *pr, void *data)
{
MSG_WriteByte (WriteDest (pr), P_FLOAT (pr, 1));
}
// void (float to, float f) WriteShort
static void
PF_WriteShort (progs_t *pr, void *data)
{
MSG_WriteShort (WriteDest (pr), P_FLOAT (pr, 1));
}
// void (float to, float f) WriteLong
static void
PF_WriteLong (progs_t *pr, void *data)
{
MSG_WriteLong (WriteDest (pr), P_FLOAT (pr, 1));
}
// void (float to, float f) WriteAngle
static void
PF_WriteAngle (progs_t *pr, void *data)
{
MSG_WriteAngle (WriteDest (pr), P_FLOAT (pr, 1));
}
// void (float to, float f) WriteCoord
static void
PF_WriteCoord (progs_t *pr, void *data)
{
MSG_WriteCoord (WriteDest (pr), P_FLOAT (pr, 1));
}
// void (float to, vector v) WriteAngleV
static void
PF_WriteAngleV (progs_t *pr, void *data)
{
float *ang = P_VECTOR (pr, 1);
MSG_WriteAngleV (WriteDest (pr), ang);
}
// void (float to, vector v) WriteCoordV
static void
PF_WriteCoordV (progs_t *pr, void *data)
{
float *coord = P_VECTOR (pr, 1);
MSG_WriteCoordV (WriteDest (pr), coord);
}
// void (float to, string s) WriteString
static void
PF_WriteString (progs_t *pr, void *data)
{
MSG_WriteString (WriteDest (pr), P_GSTRING (pr, 1));
}
// void (float to, entity s) WriteEntity
static void
PF_WriteEntity (progs_t *pr, void *data)
{
MSG_WriteShort (WriteDest (pr), P_EDICTNUM (pr, 1));
}
// void (entity e) makestatic
static void
PF_makestatic (progs_t *pr, void *data)
{
const char *model;
edict_t *ent;
int bits = 0;
ent = P_EDICT (pr, 0);
if (SVdata (ent)->alpha == ENTALPHA_ZERO) {
//johnfitz -- don't send invisible static entities
goto nosend;
}
model = PR_GetString (pr, SVstring (ent, model));
if (sv.protocol == PROTOCOL_NETQUAKE) {
if (SV_ModelIndex (model) & 0xff00
|| (int) SVfloat (ent, frame) & 0xff00)
goto nosend;
} else {
if (SV_ModelIndex (model) & 0xff00)
bits |= B_LARGEMODEL;
if ((int) SVfloat (ent, frame) & 0xff00)
bits |= B_LARGEFRAME;
if (SVdata (ent)->alpha != ENTALPHA_DEFAULT)
bits |= B_ALPHA;
}
if (bits) {
MSG_WriteByte (&sv.signon, svc_spawnstatic2);
MSG_WriteByte (&sv.signon, bits);
} else {
MSG_WriteByte (&sv.signon, svc_spawnstatic);
}
if (bits & B_LARGEMODEL)
MSG_WriteShort (&sv.signon, SV_ModelIndex (model));
else
MSG_WriteByte (&sv.signon, SV_ModelIndex (model));
if (bits & B_LARGEFRAME)
MSG_WriteShort (&sv.signon, SVfloat (ent, frame));
else
MSG_WriteByte (&sv.signon, SVfloat (ent, frame));
MSG_WriteByte (&sv.signon, SVfloat (ent, colormap));
MSG_WriteByte (&sv.signon, SVfloat (ent, skin));
MSG_WriteCoordAngleV (&sv.signon, SVvector (ent, origin),
SVvector (ent, angles));
if (bits & B_ALPHA)
MSG_WriteByte (&sv.signon, SVdata (ent)->alpha);
// throw the entity away now
nosend:
ED_Free (pr, ent);
}
// void (entity e) setspawnparms
static void
PF_setspawnparms (progs_t *pr, void *data)
{
client_t *client;
edict_t *ent;
unsigned i;
ent = P_EDICT (pr, 0);
i = NUM_FOR_EDICT (pr, ent);
if (i < 1 || i > svs.maxclients)
PR_RunError (pr, "Entity is not a client");
// copy spawn parms out of the client_t
client = svs.clients + (i - 1);
for (i = 0; i < NUM_SPAWN_PARMS; i++)
sv_globals.parms[i] = client->spawn_parms[i];
}
// void (string s) changelevel
static void
PF_changelevel (progs_t *pr, void *data)
{
const char *s;
// make sure we don't issue two changelevels
if (svs.changelevel_issued)
return;
svs.changelevel_issued = true;
s = P_GSTRING (pr, 0);
Cbuf_AddText (host_cbuf, va (0, "changelevel %s\n", s));
}
// entity (entity ent) testentitypos
static void
PF_testentitypos (progs_t *pr, void *data)
{
edict_t *ent = P_EDICT (pr, 0);
ent = SV_TestEntityPosition (ent);
RETURN_EDICT (pr, ent ? ent : sv.edicts);
}
#define MAX_PF_HULLS 64 // FIXME make dynamic?
clip_hull_t *pf_hull_list[MAX_PF_HULLS];
// integer (entity ent, vector point) hullpointcontents
static void
PF_hullpointcontents (progs_t *pr, void *data)
{
edict_t *edict = P_EDICT (pr, 0);
float *mins = P_VECTOR (pr, 1);
float *maxs = P_VECTOR (pr, 2);
float *point = P_VECTOR (pr, 3);
hull_t *hull;
vec3_t offset;
hull = SV_HullForEntity (edict, mins, maxs, 0, offset);
VectorSubtract (point, offset, offset);
R_INT (pr) = SV_HullPointContents (hull, 0, offset);
}
// vector (integer hull, integer max) getboxbounds
static void
PF_getboxbounds (progs_t *pr, void *data)
{
clip_hull_t *ch;
int h = P_INT (pr, 0) - 1;
if (h < 0 || h > MAX_PF_HULLS - 1 || !(ch = pf_hull_list[h]))
PR_RunError (pr, "PF_getboxbounds: invalid box hull handle\n");
if (P_INT (pr, 1)) {
VectorCopy (ch->maxs, R_VECTOR (pr));
} else {
VectorCopy (ch->mins, R_VECTOR (pr));
}
}
// integer () getboxhull
static void
PF_getboxhull (progs_t *pr, void *data)
{
clip_hull_t *ch = 0;
int i;
for (i = 0; i < MAX_PF_HULLS; i++) {
if (!pf_hull_list[i]) {
ch = MOD_Alloc_Hull (6, 6);
break;
}
}
if (ch) {
pf_hull_list[i] = ch;
R_INT (pr) = i + 1;
for (i = 0; i < MAX_MAP_HULLS; i++)
SV_InitHull (ch->hulls[i], ch->hulls[i]->clipnodes,
ch->hulls[i]->planes);
} else {
R_INT (pr) = 0;
}
}
// void (integer hull) freeboxhull
static void
PF_freeboxhull (progs_t *pr, void *data)
{
int h = P_INT (pr, 0) - 1;
clip_hull_t *ch;
if (h < 0 || h > MAX_PF_HULLS - 1 || !(ch = pf_hull_list[h]))
PR_RunError (pr, "PF_freeboxhull: invalid box hull handle\n");
pf_hull_list[h] = 0;
MOD_Free_Hull (ch);
}
static vec_t
calc_dist (vec3_t p, vec3_t n, vec3_t *offsets)
{
int i;
vec_t d = DotProduct (p, n);
vec3_t s, v;
VectorScale (n, d, s);
for (i = 0; i < 3; i++)
if (s[i] < 0)
v[i] = offsets[0][i];
else
v[i] = offsets[1][i];
VectorAdd (p, v, v);
return DotProduct (v, n);
}
// void (integer hull, vector right, vector forward, vector up, vector mins, vector maxs) rotate_bbox
static void
PF_rotate_bbox (progs_t *pr, void *data)
{
clip_hull_t *ch;
float l;
float *mi = P_VECTOR (pr, 4);
float *ma = P_VECTOR (pr, 5);
float *dir[3] = {
P_VECTOR (pr, 1),
P_VECTOR (pr, 2),
P_VECTOR (pr, 3),
};
hull_t *hull;
int i, j;
int h = P_INT (pr, 0) - 1;
vec3_t mins, maxs, d;
float *verts[6] = {maxs, mins, maxs, mins, maxs, mins};
vec3_t v[8];
vec3_t offsets[3][2] = {
{ { 0, 0, 0 }, { 0, 0, 0} },
{ { -16, -16, -32 }, { 16, 16, 24} },
{ { -32, -32, -64 }, { 32, 32, 24} },
};
if (h < 0 || h > MAX_PF_HULLS - 1 || !(ch = pf_hull_list[h]))
PR_RunError (pr, "PF_rotate_bbox: invalid box hull handle\n");
// set up the rotation matrix. the three orientation vectors form the
// columns of the rotation matrix
for (i = 0; i < 3; i++) {
for (j = 0; j < 3; j++) {
ch->axis[i][j] = dir[j][i];
}
}
// rotate the bounding box points
for (i = 0; i < 3; i++) {
mins[i] = DotProduct (ch->axis[i], mi);
maxs[i] = DotProduct (ch->axis[i], ma);
}
// find all 8 corners of the rotated box
VectorCopy (mins, v[0]);
VectorCopy (maxs, v[1]);
VectorSubtract (maxs, mins, d);
for (i = 0; i < 3; i++) {
vec3_t x;
l = DotProduct (d, dir[i]);
VectorScale (dir[i], l, x);
VectorAdd (mins, x, v[2 + i * 2]);
VectorSubtract (maxs, x, v[3 + i * 2]);
}
// now find the aligned bounding box
VectorCopy (v[0], ch->mins);
VectorCopy (v[0], ch->maxs);
for (i = 0; i < 8; i++) {
for (j = 0; j < 3; j++) {
ch->mins[j] = min (ch->mins[j], v[i][j]);
ch->maxs[j] = max (ch->maxs[j], v[i][j]);
}
}
// set up the 3 size based hulls
for (j = 0; j < 3; j++) {
hull = ch->hulls[j];
VectorScale (offsets[j][1], -1, hull->clip_mins);
VectorScale (offsets[j][0], -1, hull->clip_maxs);
// set up the clip planes
for (i = 0; i < 6; i++) {
hull->planes[i].dist = calc_dist (verts[i], dir[i / 2],
offsets[j]);
hull->planes[i].type = 4;
VectorCopy (dir[i / 2], hull->planes[i].normal);
}
}
}
// float () checkextension
static void
PF_checkextension (progs_t *pr, void *data)
{
R_FLOAT (pr) = 0; // FIXME: make this function actually useful
}
#define QF (PR_RANGE_QF << PR_RANGE_SHIFT) |
#define bi(x,n,np,params...) {#x, PF_##x, n, np, {params}}
#define p(type) PR_PARAM(type)
static builtin_t builtins[] = {
bi(makevectors, 1, 1, p(vector)),
bi(setorigin, 2, 2, p(entity), p(vector)),
bi(setmodel, 3, 2, p(entity), p(string)),
bi(setsize, 4, 3, p(entity), p(vector), p(vector)),
bi(sound, 8, 3, p(entity), p(float), p(string)),
bi(error, 10, -1), // (...)
bi(objerror, 11, -1), // (...)
bi(spawn, 14, 0), // (void)
bi(remove, 15, 1, p(entity)),
bi(traceline, 16, 3, p(vector), p(vector), p(float)),
bi(checkclient, 17, 0), // (void)
bi(precache_sound, 19, 1, p(string)),
bi(precache_model, 20, 1, p(string)),
bi(stuffcmd, 21, 2, p(entity), p(string)),
bi(findradius, 22, 2, p(vector), p(float)),
bi(bprint, 23, -1), // (...)
bi(sprint, 24, -2, p(entity)), // (entity, string...)
bi(walkmove, 32, 2, p(float), p(float)),
bi(droptofloor, 34, 0), // (void)
bi(lightstyle, 35, 2, p(float), p(string)),
bi(checkbottom, 40, 1, p(entity)),
bi(pointcontents, 41, 1, p(vector)),
bi(aim, 44, 2, p(entity), p(float)),
bi(localcmd, 46, 1, p(string)),
bi(particle, 48, 4, p(vector), p(vector), p(float), p(float)),
bi(changeyaw, 49, 0), // (void)
bi(WriteByte, 52, 2, p(float), p(float)),
bi(WriteBytes, -1, -2, p(float)), // (float, float...)
bi(WriteChar, 53, 2, p(float), p(float)),
bi(WriteShort, 54, 2, p(float), p(float)),
bi(WriteLong, 55, 2, p(float), p(float)),
bi(WriteCoord, 56, 2, p(float), p(float)),
bi(WriteAngle, 57, 2, p(float), p(float)),
bi(WriteCoordV, -1, 2, p(float), p(vector)),
bi(WriteAngleV, -1, 2, p(float), p(vector)),
bi(WriteString, 58, 2, p(float), p(string)),
bi(WriteEntity, 59, 2, p(float), p(entity)),
#define PF_movetogoal SV_MoveToGoal
bi(movetogoal, 67, 0), // (void)
#undef PF_movetogoal
bi(precache_file, 68, 1, p(string)),
bi(makestatic, 69, 1, p(entity)),
bi(changelevel, 70, 1, p(string)),
bi(centerprint, 73, -1), // (...)
bi(ambientsound, 74, 4, p(vector), p(string), p(float), p(float)),
bi(precache_model2, 75, 1, p(string)),
bi(precache_sound2, 76, 1, p(string)),
bi(precache_file2, 77, 1, p(string)),
bi(setspawnparms, 78, 1, p(entity)),
bi(testentitypos, QF 92, 1, p(entity)),
bi(hullpointcontents, QF 93, 2, p(entity), p(vector)),
bi(getboxbounds, QF 94, 2, p(int), p(int)),
bi(getboxhull, QF 95, 0), // (void)
bi(freeboxhull, QF 96, 1, p(int)),
bi(rotate_bbox, QF 97, 6, p(int), p(vector), p(vector), p(vector),
p(vector), p(vector)),
bi(tracebox, QF 98, 6, p(vector), p(vector), p(vector), p(vector),
p(float), p(entity)),
bi(checkextension, QF 99, -1, {}), //FIXME correct params?
#define PF_EntityParseFunction ED_EntityParseFunction
bi(EntityParseFunction, -1, 1, p(func)),
#undef PF_EntityParseFunction
{0}
};
void
SV_PR_Cmds_Init ()
{
Cvar_Register (&sv_aim_cvar, 0, 0);
RUA_Init (&sv_pr_state, 1);
PR_Cmds_Init (&sv_pr_state);
PR_RegisterBuiltins (&sv_pr_state, builtins, 0);
}
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