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quakeforge/libs/gamecode/builtins/pr_cmds.c

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/*
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
static __attribute__ ((used)) const char rcsid[] =
"$Id$";
#ifdef HAVE_ERRNO_H
# include <errno.h>
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include <stdlib.h>
#include "QF/cvar.h"
#include "QF/dstring.h"
#include "QF/mathlib.h"
#include "QF/progs.h"
#include "QF/sys.h"
#include "QF/zone.h"
#include "compat.h"
#include "QF/csqc.h"
#define U __attribute__ ((used))
static U void (*const gib_progs_init)(progs_t *) = GIB_Progs_Init;
static U void (*const inputline_progs_init)(progs_t *) = InputLine_Progs_Init;
#undef U
const char *pr_gametype = "";
/* BUILT-IN FUNCTIONS */
char *
PF_VarString (progs_t *pr, int first)
{
char *out;
int len, i;
for (len = 0, i = first; i < pr->pr_argc; i++)
len += strlen (P_GSTRING (pr, i));
out = Hunk_TempAlloc (len + 1);
out[0] = 0;
for (i = first; i < pr->pr_argc; i++)
strcat (out, P_GSTRING (pr, i));
return out;
}
/*
vector (vector v) normalize
*/
static void
PF_normalize (progs_t *pr)
{
float new;
float *value1;
vec3_t newvalue;
value1 = P_VECTOR (pr, 0);
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, R_VECTOR (pr));
}
/*
float (vector v) vlen
*/
static void
PF_vlen (progs_t *pr)
{
float new;
float *value1;
value1 = P_VECTOR (pr, 0);
new = value1[0] * value1[0] + value1[1] * value1[1] + value1[2] *
value1[2];
new = sqrt (new);
R_FLOAT (pr) = new;
}
/*
float (vector v) vectoyaw
*/
static void
PF_vectoyaw (progs_t *pr)
{
float yaw;
float *value1;
value1 = P_VECTOR (pr, 0);
if (value1[1] == 0 && value1[0] == 0)
yaw = 0;
else {
yaw = (int) (atan2 (value1[1], value1[0]) * 180 / M_PI);
if (yaw < 0)
yaw += 360;
}
R_FLOAT (pr) = yaw;
}
/*
vector (vector v) vectoangles
*/
static void
PF_vectoangles (progs_t *pr)
{
float forward, pitch, yaw;
float *value1;
value1 = P_VECTOR (pr, 0);
if (value1[1] == 0 && value1[0] == 0) {
yaw = 0;
if (value1[2] > 0)
pitch = 90;
else
pitch = 270;
} else {
yaw = (int) (atan2 (value1[1], value1[0]) * 180 / M_PI);
if (yaw < 0)
yaw += 360;
forward = sqrt (value1[0] * value1[0] + value1[1] * value1[1]);
pitch = (int) (atan2 (value1[2], forward) * 180 / M_PI);
if (pitch < 0)
pitch += 360;
}
R_VECTOR (pr)[0] = pitch;
R_VECTOR (pr)[1] = yaw;
R_VECTOR (pr)[2] = 0;
}
/*
float () random
Returns a number from 0<= num < 1
*/
static void
PF_random (progs_t *pr)
{
float num;
num = (rand () & 0x7fff) / ((float) 0x7fff);
R_FLOAT (pr) = num;
}
/*
void () break
*/
static void
PF_break (progs_t *pr)
{
Sys_Printf ("break statement\n");
PR_DumpState (pr);
}
/*
float (string s) cvar
*/
static void
PF_cvar (progs_t *pr)
{
const char *str;
str = P_GSTRING (pr, 0);
R_FLOAT (pr) = Cvar_VariableValue (str);
}
/*
void (string var, string val) cvar_set
*/
static void
PF_cvar_set (progs_t *pr)
{
const char *var_name, *val;
cvar_t *var;
var_name = P_GSTRING (pr, 0);
val = P_GSTRING (pr, 1);
var = Cvar_FindVar (var_name);
if (!var)
var = Cvar_FindAlias (var_name);
if (!var) {
Sys_Printf ("PF_cvar_set: variable %s not found\n", var_name);
return;
}
Cvar_Set (var, val);
}
/*
float (float f) fabs
*/
static void
PF_fabs (progs_t *pr)
{
float v;
v = P_FLOAT (pr, 0);
R_FLOAT (pr) = fabs (v);
}
/*
entity (entity start, .(...) fld, ... match) find
*/
static void
PF_Find (progs_t *pr)
{
const char *s = 0, *t; // ev_string
int i; // ev_vector
int e, f;
etype_t type;
ddef_t *field_def;
edict_t *ed;
e = P_EDICTNUM (pr, 0);
f = P_INT (pr, 1);
field_def = PR_FieldAtOfs (pr, f);
if (!field_def)
PR_RunError (pr, "PF_Find: bad search field: %d", f);
type = field_def->type & ~DEF_SAVEGLOBAL;
if (type == ev_string) {
s = P_GSTRING (pr, 2);
if (!s)
PR_RunError (pr, "PF_Find: bad search string");
}
for (e++; e < *pr->num_edicts; e++) {
ed = EDICT_NUM (pr, e);
if (ed->free)
continue;
switch (type) {
case ev_string:
t = E_GSTRING (pr, ed, f);
if (!t)
continue;
if (strcmp (t, s))
continue;
RETURN_EDICT (pr, ed);
return;
case ev_float:
if (P_FLOAT (pr, 2) != E_FLOAT (ed, f))
continue;
RETURN_EDICT (pr, ed);
return;
case ev_vector:
for (i = 0; i <= 2; i++)
if (P_FLOAT (pr, 2 + i) != E_FLOAT (ed, f + i))
continue;
RETURN_EDICT (pr, ed);
return;
case ev_integer:
case ev_entity:
if (P_INT (pr, 2) != E_INT (ed, f))
continue;
RETURN_EDICT (pr, ed);
return;
default:
PR_Error (pr, "PF_Find: unsupported search field");
}
}
RETURN_EDICT (pr, *pr->edicts);
}
/*
void () coredump
*/
static void
PF_coredump (progs_t *pr)
{
ED_PrintEdicts (pr, "");
}
/*
void () traceon
*/
static void
PF_traceon (progs_t *pr)
{
pr->pr_trace = true;
pr->pr_trace_depth = pr->pr_depth;
}
/*
void () traceoff
*/
static void
PF_traceoff (progs_t *pr)
{
pr->pr_trace = false;
}
/*
void (entity e) eprint
*/
static void
PF_eprint (progs_t *pr)
{
ED_PrintNum (pr, P_EDICTNUM (pr, 0));
}
/*
void (string s) dprint
*/
static void
PF_dprint (progs_t *pr)
{
Sys_Printf ("%s", PF_VarString (pr, 0));
}
/*
float (float v) rint
*/
static void
PF_rint (progs_t *pr)
{
float f;
f = P_FLOAT (pr, 0);
if (f > 0)
R_FLOAT (pr) = (int) (f + 0.5);
else
R_FLOAT (pr) = (int) (f - 0.5);
}
/*
float (float v) floor
*/
static void
PF_floor (progs_t *pr)
{
R_FLOAT (pr) = floor (P_FLOAT (pr, 0));
}
/*
float (float v) ceil
*/
static void
PF_ceil (progs_t *pr)
{
R_FLOAT (pr) = ceil (P_FLOAT (pr, 0));
}
/*
entity (entity e) nextent
*/
static void
PF_nextent (progs_t *pr)
{
int i;
edict_t *ent;
i = P_EDICTNUM (pr, 0);
while (1) {
i++;
if (i == *pr->num_edicts) {
RETURN_EDICT (pr, *pr->edicts);
return;
}
ent = EDICT_NUM (pr, i);
if (!ent->free) {
RETURN_EDICT (pr, ent);
return;
}
}
}
// we assume that ints are smaller than floats
#ifdef FLT_MAX_10_EXP
# define STRING_BUF (FLT_MAX_10_EXP + 8)
#else
# define STRING_BUF 128
#endif
/*
integer (float f) ftoi
*/
static void
PF_ftoi (progs_t *pr)
{
R_INT (pr) = P_FLOAT (pr, 0);
}
/*
string (float f) ftos
*/
static void
PF_ftos (progs_t *pr)
{
char string[STRING_BUF];
int i;
// trimming 0s idea thanks to Maddes
i = snprintf (string, sizeof (string), "%1.6f", P_FLOAT (pr, 0)) - 1;
for (; i > 0; i--) {
if (string[i] == '0')
string[i] = '\0';
else if (string[i] == '.') {
string[i] = '\0';
break;
} else
break;
}
RETURN_STRING (pr, string);
}
/*
float (integer i) itof
*/
static void
PF_itof (progs_t *pr)
{
R_FLOAT (pr) = P_INT (pr, 0);
}
/*
string (integer i) itos
*/
static void
PF_itos (progs_t *pr)
{
char string[STRING_BUF];
snprintf (string, sizeof (string), "%d", P_INT (pr, 0));
RETURN_STRING (pr, string);
}
/*
float (string s) stof
*/
static void
PF_stof (progs_t *pr)
{
R_FLOAT (pr) = atof (P_GSTRING (pr, 0));
}
/*
integer (string s) stoi
*/
static void
PF_stoi (progs_t *pr)
{
R_INT (pr) = atoi (P_GSTRING (pr, 0));
}
/*
vector (string s) stov
*/
static void
PF_stov (progs_t *pr)
{
float v[3] = {0, 0, 0};
sscanf (P_GSTRING (pr, 0), "'%f %f %f'", v, v + 1, v + 2);
RETURN_VECTOR (pr, v);
}
/*
string (vector v) vtos
*/
static void
PF_vtos (progs_t *pr)
{
char string[STRING_BUF * 3 + 5];
snprintf (string, sizeof (string), "'%5.1f %5.1f %5.1f'",
P_VECTOR (pr, 0)[0],
P_VECTOR (pr, 0)[1],
P_VECTOR (pr, 0)[2]);
RETURN_STRING (pr, string);
}
/*
float (string s) strlen
*/
static void
PF_strlen (progs_t *pr)
{
const char *s;
s = P_GSTRING (pr, 0);
R_FLOAT (pr) = strlen(s);
}
/*
float (string char, string s) charcount
*/
static void
PF_charcount (progs_t *pr)
{
char goal;
const char *s;
int count;
goal = (P_GSTRING (pr, 0))[0];
if (goal == '\0') {
R_FLOAT (pr) = 0;
return;
}
count = 0;
s = P_GSTRING (pr, 1);
while (*s) {
if (*s == goal)
count++;
s++;
}
R_FLOAT (pr) = count;
}
#if (INT_MAX == 2147483647) && (INT_MIN == -2147483648)
# define INT_WIDTH 11
#else /* I hope... */
# define INT_WIDTH 20
#endif
#define MAX_ARG 7
/*
string (...) sprintf
*/
static void
PF_sprintf (progs_t *pr)
{
const char *fmt = P_GSTRING (pr, 0);
int count = pr->pr_argc - 1;
pr_type_t **args = pr->pr_params + 1;
dstring_t *dstr;
int str;
str = PR_NewMutableString (pr);
dstr = PR_GetMutableString (pr, str);
PR_Sprintf (pr, dstr, "PF_sprintf", fmt, count, args);
RETURN_STRING (pr, dstr->str);
dstring_delete (dstr);
}
/*
string () gametype
*/
static void
PR_gametype (progs_t *pr)
{
RETURN_STRING (pr, pr_gametype);
}
static void
PF_PR_SetField (progs_t *pr)
{
edict_t *ent = P_EDICT (pr, 0);
ddef_t *field = PR_FindField (pr, P_GSTRING (pr, 1));
const char *value = P_GSTRING (pr, 2);
R_INT (pr) = 0;
if (field)
R_INT (pr) = ED_ParseEpair (pr, ent->v, field, value);
}
static void
PF_PR_FindFunction (progs_t *pr)
{
dfunction_t *func = PR_FindFunction (pr, P_GSTRING (pr, 0));
R_FUNCTION (pr) = 0;
if (func)
R_FUNCTION (pr) = func - pr->pr_functions;
}
#define QF (PR_RANGE_QF << PR_RANGE_SHIFT) |
static builtin_t builtins[] = {
{"break", PF_break, 6},
{"random", PF_random, 7},
{"normalize", PF_normalize, 9},
{"vlen", PF_vlen, 12},
{"vectoyaw", PF_vectoyaw, 13},
{"find", PF_Find, 18},
{"dprint", PF_dprint, 25},
{"ftos", PF_ftos, 26},
{"vtos", PF_vtos, 27},
{"coredump", PF_coredump, 28},
{"traceon", PF_traceon, 29},
{"traceoff", PF_traceoff, 30},
{"eprint", PF_eprint, 31},
{"rint", PF_rint, 36},
{"floor", PF_floor, 37},
{"ceil", PF_ceil, 38},
{"fabs", PF_fabs, 43},
{"cvar", PF_cvar, 45},
{"nextent", PF_nextent, 47},
{"vectoangles", PF_vectoangles, 51},
{"cvar_set", PF_cvar_set, 72},
{"stof", PF_stof, 81},
{"strlen", PF_strlen, QF 100},
{"charcount", PF_charcount, QF 101},
{"sprintf", PF_sprintf, QF 109},
{"ftoi", PF_ftoi, QF 110},
{"itof", PF_itof, QF 111},
{"itos", PF_itos, QF 112},
{"stoi", PF_stoi, QF 113},
{"stov", PF_stov, QF 114},
{"gametype", PR_gametype, QF 115},
{"PR_SetField", PF_PR_SetField, -1},
{"PR_FindFunction", PF_PR_FindFunction, -1},
{0}
};
void
PR_Cmds_Init (progs_t *pr)
{
PR_RegisterBuiltins (pr, builtins);
}
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