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quakeforge/qw/source/sv_pr_cpqw.c
Bill Currie 12c84046f3 [cvar] Make cvars properly typed 
This is an extremely extensive patch as it hits every cvar, and every
usage of the cvars. Cvars no longer store the value they control,
instead, they use a cexpr value object to reference the value and
specify the value's type (currently, a null type is used for strings).
Non-string cvars are passed through cexpr, allowing expressions in the
cvars' settings. Also, cvars have returned to an enhanced version of the
original (id quake) registration scheme.

As a minor benefit, relevant code having direct access to the
cvar-controlled variables is probably a slight optimization as it
removed a pointer dereference, and the variables can be located for data
locality.

The static cvar descriptors are made private as an additional safety
layer, though there's nothing stopping external modification via
Cvar_FindVar (which is needed for adding listeners).

While not used yet (partly due to working out the design), cvars can
have a validation function.

Registering a cvar allows a primary listener (and its data) to be
specified: it will always be called first when the cvar is modified. The
combination of proper listeners and direct access to the controlled
variable greatly simplifies the more complex cvar interactions as much
less null checking is required, and there's no need for one cvar's
callback to call another's.

nq-x11 is known to work at least well enough for the demos. More testing
will come.
2022-04-24 19:15:22 +09:00

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/*
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 the 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
#if defined(_WIN32) && defined(HAVE_MALLOC_H)
# include <malloc.h>
#endif
#include <ctype.h>
#include "qfalloca.h"
#include "QF/cmd.h"
#include "QF/dstring.h"
#include "QF/quakefs.h"
#include "QF/sys.h"
#include "qw/include/server.h"
#include "qw/include/sv_pr_cpqw.h"
#include "qw/include/sv_progs.h"
#include "world.h"
static struct {
pr_func_t ClientCommand;
} cpqw_funcs;
/*
PF_getuid
float(entity client) getuid
*/
static void
PF_getuid (progs_t *pr, void *data)
{
edict_t *client_ent;
int e_num;
float retval = 0;
client_ent = P_EDICT (pr, 0);
e_num = NUM_FOR_EDICT (pr, client_ent);
if (e_num <= MAX_CLIENTS && e_num >= 1)
retval = (float) svs.clients[e_num - 1].userid;
R_FLOAT (pr) = retval;
}
/*
PF_strcat
string(string st1, string st2) strcat
*/
static void
PF_strcat (progs_t *pr, void *data)
{
const char *st1 = P_GSTRING (pr, 0);
const char *st2 = P_GSTRING (pr, 1);
R_STRING (pr) = PR_CatStrings (pr, st1, st2);
}
/*
PF_padstr
string(string st, float len) padstr
*/
static void
PF_padstr (progs_t *pr, void *data)
{
const char *st;
size_t i, padlen, givenlen;
char *padding;
st = P_GSTRING (pr, 0);
padlen = (unsigned int) P_FLOAT (pr, 1);
givenlen = strlen (st);
// Check if nothing should be done due to error or no need to..
if ( (padlen <= givenlen)) { // nothing should be done
R_INT (pr) = P_STRING (pr, 0); // return given string
return;
}
// ok, lets pad it!
padlen -= givenlen;
padding = alloca (padlen + 1);
for (i = 0; i < padlen; i++)
padding[i] = ' ';
padding[i] = '\0';
R_STRING (pr) = PR_CatStrings (pr, st, padding);
}
/*
PF_colstr
string(string srcstr, float action) colstr
*/
// Possible action values
#define COLSTR_WHITE 0 // converts any red chars to white
#define COLSTR_MIX1 1 // mix red and white chars
#define COLSTR_RED 2 // converts any white chars to red
#define COLSTR_MIX2 3 // mix red and white chars
#define COLSTR_NUMBER 4 // converts any numbers to special
// number chars
#define COLSTR_NUMBERV 5 // second variant of special number
// chars (different on only some
// non-original charsets)
static void
PF_colstr (progs_t *pr, void *data)
{
const char *srcstr;
unsigned char *result;
unsigned action;
size_t len, i;
srcstr = P_GSTRING (pr, 0);
action = (unsigned) P_FLOAT (pr, 1);
len = strlen (srcstr);
// Check for errors, if any, return given string
if (len == 0 || action > COLSTR_NUMBERV) {
R_INT (pr) = P_STRING (pr, 0); // return given string
return;
}
// Process string..
result = alloca (len + 1);
strcpy ((char *) result, srcstr);
switch (action) {
case COLSTR_WHITE:
for (i = 0; i < len; i++) {
if (result[i] > 160) // is red char
result[i] -= 128;
}
break;
case COLSTR_MIX1:
for (i = 0; i < len; i++) {
if (i & 0x01) {
if (result[i] < 128 && result[i] > 32) // is white char
result[i] += 128;
} else {
if (result[i] > 160) // is red char
result[i] -= 128;
}
}
break;
case COLSTR_RED:
for (i = 0; i < len; i++) {
if (result[i] < 128 && result[i] > 32) // is white char
result[i] += 128;
}
break;
case COLSTR_MIX2:
for (i = 0; i < len; i++) {
if (i & 0x01) {
if (result[i] > 160) // is red char
result[i] -= 128;
} else {
if (result[i] < 128 && result[i] > 32) // is white char
result[i] += 128;
}
}
break;
case COLSTR_NUMBER:
for (i = 0; i < len; i++) {
if (result[i] > 47 && result[i] < 58) // is a white number
result[i] -= 30;
}
break;
case COLSTR_NUMBERV:
for (i = 0; i < len; i++) {
if (result[i] > 47 && result[i] < 58) // is a white number
result[i] += 98;
}
}
RETURN_STRING (pr, (char *) result);
}
/*
PF_strcasecmp
float(string st1, string st2) strcasecmp
*/
static void
PF_strcasecmp (progs_t *pr, void *data)
{
const char *st1;
const char *st2;
st1 = P_GSTRING (pr, 0);
st2 = P_GSTRING (pr, 1);
R_FLOAT (pr) = (float) strncasecmp (st1, st2, 99999);
}
/*
PF_strlen
float(string st) strlen
*/
static void
PF_strlen (progs_t *pr, void *data)
{
const char *st;
st = P_GSTRING (pr, 0);
R_FLOAT (pr) = (float) strlen (st);
}
static char
KK_qwchar (char c)
{
c &= 0x7f;
if (c >= ' ')
return tolower ((byte) c);
if (c >= 0x12 && c <= 0x1b)
return c - 0x12 + '0';
switch (c) {
case 0x05:
case 0x0e:
case 0x0f:
case 0x1c:
return '.';
case 0x10:
return '[';
case 0x11:
return ']';
default:
return 'X';
}
}
static edict_t *
KK_Match_Str2 (const char *substr)
{
int i, j, count;
dstring_t *lstr = dstring_new ();
dstring_t *lname = dstring_new ();
client_t *cl;
edict_t *retedict = 0;
dstring_copystr (lstr, substr);
for (j = 0; lstr->str[j]; j++)
lstr->str[j] = KK_qwchar (lstr->str[j]);
for (i = count = 0, cl = svs.clients; i < MAX_CLIENTS; i++, cl++) {
if (!cl->state)
continue;
dstring_copystr (lname, cl->name);
for (j = 0; lname->str[j]; j++)
lname->str[j] = KK_qwchar (lname->str[j]);
if (strstr (lname->str, lstr->str)) {
retedict = cl->edict;
count++;
}
}
if (count > 1)
retedict = 0;
dstring_delete (lstr);
dstring_delete (lname);
return retedict;
}
/*
PF_getclient
entity(string st) getclient
*/
static void
PF_getclient (progs_t *pr, void *data)
{
edict_t *ent;
const char *st;
int i, uid;
client_t *cl;
st = P_GSTRING (pr, 0);
ent = (edict_t *) KK_Match_Str2 (st);
// no substring match?
if (!ent) {
uid = atoi (st); // lets assume its an user id
if (uid != 0) // was it even a number?
{
// then, lets see if a client with that userid is here
for (i = 0, cl = svs.clients; i < MAX_CLIENTS && !ent; i++, cl++) {
if (cl->userid == uid) // yeah, found it
ent = cl->edict;
}
}
}
// Failed retrieving an user by name and by userid, so return world
if (!ent)
ent = sv.edicts;
RETURN_EDICT (pr, ent);
}
/*
==============
PF_mutedtime
float(entity client) mutedtime
==============
*/
static void
PF_mutedtime (progs_t *pr, void *data)
{
edict_t *client_ent;
int e_num;
float retval = 0;
client_ent = P_EDICT (pr, 0);
e_num = NUM_FOR_EDICT (pr, client_ent);
if (e_num <= MAX_CLIENTS && e_num > 0) {
if (realtime >= svs.clients[e_num - 1].lockedtill)
retval = (float) 0;
else
retval = (float) svs.clients[e_num - 1].lockedtill - realtime;
}
R_FLOAT (pr) = retval;
}
/*
==============
PF_validatefile
float(string st) validatefile
==============
*/
static void
PF_validatefile (progs_t *pr, void *data)
{
float retval;
QFile *f;
const char *st;
st = P_GSTRING (pr, 0);
f = QFS_FOpenFile (st);
if (!f) {
retval = 0.0;
} else {
retval = 1.0;
Qclose (f);
}
R_FLOAT (pr) = retval;
}
/*
PF_putsaytime
void(entity client) putsaytime
*/
extern int fp_messages, fp_persecond, fp_secondsdead;
static void
PF_putsaytime (progs_t *pr, void *data)
{
edict_t *client_ent;
int e_num, tmp;
client_ent = P_EDICT (pr, 0);
e_num = NUM_FOR_EDICT (pr, client_ent);
if (e_num <= MAX_CLIENTS && e_num >= 1) {
tmp = svs.clients[e_num - 1].whensaidhead - fp_messages + 1;
if (tmp < 0)
tmp = 10 + tmp;
if (svs.clients[e_num - 1].whensaid[tmp]
&& (realtime - svs.clients[e_num - 1].whensaid[tmp] <
fp_persecond)) {
svs.clients[e_num - 1].lockedtill = realtime + fp_secondsdead;
return;
}
svs.clients[e_num - 1].whensaidhead++;
if (svs.clients[e_num - 1].whensaidhead > 9)
svs.clients[e_num - 1].whensaidhead = 0;
svs.clients[e_num - 1].whensaid[svs.clients[e_num - 1].whensaidhead] =
realtime;
}
}
/*
PF_makestr
string(string st) makestr
*/
static void
PF_makestr (progs_t *pr, void *data)
{
pr_string_t res = PR_NewMutableString (pr);
dstring_t *dst = PR_GetMutableString (pr, res);
const char *src = P_GSTRING (pr, 0);
dstring_copystr (dst, src);
R_STRING (pr) = res;
}
/*
PF_delstr
void(string st) delstr
*/
static void
PF_delstr (progs_t *pr, void *data)
{
PR_FreeString (pr, P_STRING (pr, 0));
}
/*
PF_getwave
float(float inputnum, float modes, float minnum, float maxnum,
float balance, float offset, float shape) getwave
*/
static float
GetCircleWave (float inputnum)
{
inputnum = inputnum - (int) inputnum;
if (inputnum >= 0.75) // -1 to 0
{
if (inputnum == 0.75)
return -1;
inputnum = inputnum - 0.75;
inputnum = inputnum * 4;
return (1 - sqrt (1 - (inputnum * inputnum))) - 1;
} else if (inputnum >= 0.5) // 0 to -1
{
if (inputnum == 0.5)
return 0;
inputnum = inputnum - 0.5;
inputnum = 0.25 - inputnum;
inputnum = inputnum * 4;
return (1 - sqrt (1 - (inputnum * inputnum))) - 1;
} else if (inputnum >= 0.25) // 1 to 0
{
if (inputnum == 0.25)
return 1;
inputnum = inputnum - 0.25;
inputnum = inputnum * 4;
return sqrt (1 - (inputnum * inputnum));
} else // 0 to 1
{
if (inputnum == 0)
return 0;
inputnum = 0.25 - inputnum;
inputnum = inputnum * 4;
return sqrt (1 - (inputnum * inputnum));
}
return 0;
}
static float
GetLinearWave (float inputnum)
{
inputnum = inputnum - (int) inputnum;
if (inputnum <= 0.25)
return inputnum / 0.25;
else if (inputnum <= 0.5)
return 1 - ((inputnum - 0.25) / 0.25);
else if (inputnum <= 0.75)
return -(inputnum - 0.5) / 0.25;
else
return -1 + (inputnum - 0.75) / 0.25;
return 0;
}
// GetWave possible mode flags
#define GWAVE_STANDARD 0
#define GWAVE_USEMINMAX 1
#define GWAVE_USEBALANCE 2 // TODO: Unimplemented yet
#define GWAVE_USEOFFSET 4
#define GWAVE_USESHAPE 8
static void
PF_getwave (progs_t *pr, void *data)
{
float retval, inputnum, minnum, maxnum, balance, offset, shape;
float temp;
unsigned int modes;
inputnum = P_FLOAT (pr, 0);
modes = (unsigned int) P_FLOAT (pr, 1);
balance = P_FLOAT (pr, 4);
(void) balance; //FIXME
if (modes & GWAVE_USEOFFSET)
offset = P_FLOAT (pr, 5);
else
offset = 0;
// Use special shape?
if (modes & GWAVE_USESHAPE) {
shape = P_FLOAT (pr, 6);
if (shape >= -1 && shape <= 1 && shape != 0) {
if (shape < 0) // sine/linear mix
{
if (shape == -1) // full linear
retval = GetLinearWave (inputnum + offset);
else {
// Get standard sinus
retval = sin (2 * M_PI * (inputnum + offset));
temp = GetLinearWave (inputnum + offset);
retval =
(retval * (1 - fabs (shape))) + (temp * fabs (shape));
}
} else // sine/circular mix
{
if (shape == 1) // full circular
retval = GetCircleWave (inputnum + offset);
else {
// Get standard sinus
retval = sin (2 * M_PI * (inputnum + offset));
temp = GetCircleWave (inputnum + offset);
retval = retval * (1 - shape) + temp * shape;
}
}
} else // 0 or invalid shape
{
// Get standard sinus
retval = sin (2 * M_PI * (inputnum + offset));
}
} else // dont use shape then..
{
// Get standard sinus
retval = sin (2 * M_PI * (inputnum + offset));
}
// Use maximum/minimum values?
if (modes & GWAVE_USEMINMAX) {
minnum = P_FLOAT (pr, 2);
maxnum = P_FLOAT (pr, 3);
retval = minnum + ((retval + 1) / 2) * (maxnum - minnum);
}
// Return it!
R_FLOAT (pr) = retval;
}
/*
PF_clientsound
void(entity client) clientsound
*/
static void
PF_clientsound (progs_t *pr, void *data)
{
const char *sample;
int channel;
edict_t *entity;
int volume;
float attenuation;
int sound_num;
int i;
pr_int_t ent;
vec3_t origin;
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);
ent = NUM_FOR_EDICT (pr, entity);
// If not a client go away
if (ent > MAX_CLIENTS || ent < 1)
return;
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 > 15)
Sys_Error ("SV_StartSound: channel = %i", channel);
// find precache number for sound
for (sound_num = 1; sound_num < MAX_SOUNDS
&& sv.sound_precache[sound_num]; sound_num++)
if (!strcmp (sample, sv.sound_precache[sound_num]))
break;
if (sound_num == MAX_SOUNDS || !sv.sound_precache[sound_num]) {
Sys_Printf ("SV_StartSound: %s not precacheed\n", sample);
return;
}
channel &= 7;
channel = (ent << 3) | channel;
if (volume != DEFAULT_SOUND_PACKET_VOLUME)
channel |= SND_VOLUME;
if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
channel |= SND_ATTENUATION;
// use the entity origin
VectorCopy (SVvector (entity, origin), origin);
MSG_WriteByte (&svs.clients[ent - 1].netchan.message, svc_sound);
MSG_WriteShort (&svs.clients[ent - 1].netchan.message, channel);
if (channel & SND_VOLUME)
MSG_WriteByte (&svs.clients[ent - 1].netchan.message, volume);
if (channel & SND_ATTENUATION)
MSG_WriteByte (&svs.clients[ent - 1].netchan.message, attenuation * 64);
MSG_WriteByte (&svs.clients[ent - 1].netchan.message, sound_num);
for (i = 0; i < 3; i++)
MSG_WriteCoord (&svs.clients[ent - 1].netchan.message, origin[i]);
}
/*
PF_touchworld
void() touchworld
*/
static void
PF_touchworld (progs_t *pr, void *data)
{
edict_t *self;
pr_int_t oself;
oself = *sv_globals.self;
self = PROG_TO_EDICT (pr, *sv_globals.self);
SV_LinkEdict (self, true);
*sv_globals.self = oself;
}
/*
CPQW_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
*/
#define TL_ANY_SOLID 0
#define TL_BSP_ONLY 1
#define TL_TRIGGERS 3 // scan for triggers
#define TL_EVERYTHING 4 // scan for anything
static void
PF_traceline (progs_t *pr, void *data)
{
float *v1, *v2;
edict_t *ent;
int nomonsters;
trace_t trace;
static int tl_to_move[] = {
MOVE_NORMAL,
MOVE_NORMAL,
MOVE_NORMAL,
MOVE_TRIGGERS,
MOVE_EVERYTHING,
};
v1 = P_VECTOR (pr, 0);
v2 = P_VECTOR (pr, 1);
nomonsters = P_FLOAT (pr, 2);
ent = P_EDICT (pr, 3);
if (nomonsters < TL_ANY_SOLID || nomonsters > TL_EVERYTHING)
nomonsters = TL_ANY_SOLID;
nomonsters = tl_to_move[nomonsters];
if (sv_antilag == 2)
nomonsters |= MOVE_LAGGED;
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);
}
#define CPQW (PR_RANGE_CPQW << PR_RANGE_SHIFT) |
#define bi(x,n,np,params...) {"CPCW:"#x, PF_##x, n, np, {params}}
#define p(type) PR_PARAM(type)
#define P(a, s) { .size = (s), .alignment = BITOP_LOG2 (a), }
static builtin_t builtins[] = {
bi(traceline, CPQW 16, 3, p(vector), p(vector), p(float)),
bi(getuid, CPQW 83, 1, p(entity)),
bi(strcat, CPQW 84, 2, p(string), p(string)),
bi(padstr, CPQW 85, 2, p(string), p(float)),
bi(colstr, CPQW 86, 2, p(string), p(float)),
bi(strcasecmp, CPQW 87, 2, p(string), p(string)),
bi(strlen, CPQW 88, 1, p(string)),
bi(getclient, CPQW 89, 1, p(string)),
bi(mutedtime, CPQW 90, 1, p(entity)),
bi(validatefile, CPQW 91, 1, p(string)),
bi(putsaytime, CPQW 92, 1, p(entity)),
bi(makestr, CPQW 93, 1, p(string)),
bi(delstr, CPQW 94, 1, p(string)),
bi(getwave, CPQW 95, 7, p(float), p(float), p(float), p(float),
p(float), p(float), p(float)),
bi(clientsound, CPQW 96, 1, p(entity)),
bi(touchworld, CPQW 97, 0),
{0}
};
static struct {
const char *name;
pr_func_t *field;
} cpqw_func_list[] = {
{"ClientCommand", &cpqw_funcs.ClientCommand},
{"UserInfoChanged", &sv_funcs.UserInfoChanged},
};
static int
cpqw_user_cmd (void)
{
int argc, i;
progs_t *pr = &sv_pr_state;
if (cpqw_funcs.ClientCommand) {
argc = Cmd_Argc ();
if (argc > 7)
argc = 7;
*sv_globals.time = sv.time;
*sv_globals.self = EDICT_TO_PROG (&sv_pr_state, sv_player);
PR_PushFrame (pr);
PR_RESET_PARAMS (pr);
P_FLOAT (pr, 0) = argc;
for (i = 1; i < argc + 1; i++)
P_STRING (pr, i) = PR_SetTempString (pr, Cmd_Argv (i - 1));
for (; i < 8; i++)
P_STRING (pr, i) = 0;
pr->pr_argc = 8;
PR_ExecuteProgram (pr, cpqw_funcs.ClientCommand);
PR_PopFrame (pr);
return (int) R_FLOAT (pr);
}
return 0;
}
static int
cpqw_load (progs_t *pr)
{
size_t i;
for (i = 0;
i < sizeof (cpqw_func_list) / sizeof (cpqw_func_list[0]); i++) {
dfunction_t *f = PR_FindFunction (pr, cpqw_func_list[i].name);
*cpqw_func_list[i].field = 0;
if (f)
*cpqw_func_list[i].field = (pr_func_t) (f - pr->pr_functions);
}
ucmd_unknown = cpqw_user_cmd;
return 1;
}
void
SV_PR_CPQW_Init (progs_t *pr)
{
PR_RegisterBuiltins (pr, builtins, 0);
PR_AddLoadFunc (pr, cpqw_load);
}
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