mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-18 18:51:53 +00:00
33e055209e
be more to come.
881 lines
17 KiB
C
881 lines
17 KiB
C
/*
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pr_cmds.c
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(description)
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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static const char rcsid[] =
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"$Id$";
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#ifdef HAVE_ERRNO_H
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# include <errno.h>
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#endif
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#include <stdlib.h>
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#include "QF/clip_hull.h"
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#include "QF/cmd.h"
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#include "QF/cvar.h"
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#include "QF/mathlib.h"
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#include "QF/msg.h"
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#include "QF/progs.h"
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#include "QF/sys.h"
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#include "QF/va.h"
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#include "QF/zone.h"
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#include "compat.h"
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const char *pr_gametype = "";
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/* BUILT-IN FUNCTIONS */
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// FIXME: Hunk_TempAlloc, Sys_Printf, Cvar_*, PR_SetString, PR_RunError, ED_PrintEdicts, PF_traceon, PF_traceoff, ED_PrintNum, PR_FindBuiltin isn't threadsafe/reentrant
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const char *
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PF_VarString (progs_t *pr, int first)
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{
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char *out;
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int len, i;
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for (len = 0, i = first; i < pr->pr_argc; i++)
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len += strlen (G_STRING (pr, (OFS_PARM0 + i * 3)));
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out = Hunk_TempAlloc (len + 1);
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out[0] = 0;
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for (i = first; i < pr->pr_argc; i++)
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strcat (out, G_STRING (pr, (OFS_PARM0 + i * 3)));
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return out;
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}
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/*
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PF_normalize
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vector normalize(vector)
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*/
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void
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PF_normalize (progs_t *pr)
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{
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float new;
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float *value1;
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vec3_t newvalue;
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value1 = G_VECTOR (pr, OFS_PARM0);
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new = value1[0] * value1[0] + value1[1] * value1[1] + value1[2] *
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value1[2];
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new = sqrt (new);
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if (new == 0)
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newvalue[0] = newvalue[1] = newvalue[2] = 0;
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else {
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new = 1 / new;
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newvalue[0] = value1[0] * new;
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newvalue[1] = value1[1] * new;
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newvalue[2] = value1[2] * new;
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}
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VectorCopy (newvalue, G_VECTOR (pr, OFS_RETURN));
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}
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/*
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PF_vlen
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scalar vlen(vector)
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*/
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void
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PF_vlen (progs_t *pr)
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{
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float new;
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float *value1;
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value1 = G_VECTOR (pr, OFS_PARM0);
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new = value1[0] * value1[0] + value1[1] * value1[1] + value1[2] *
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value1[2];
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new = sqrt (new);
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G_FLOAT (pr, OFS_RETURN) = new;
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}
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/*
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PF_vectoyaw
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float vectoyaw(vector)
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*/
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void
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PF_vectoyaw (progs_t *pr)
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{
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float yaw;
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float *value1;
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value1 = G_VECTOR (pr, OFS_PARM0);
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if (value1[1] == 0 && value1[0] == 0)
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yaw = 0;
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else {
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yaw = (int) (atan2 (value1[1], value1[0]) * 180 / M_PI);
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if (yaw < 0)
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yaw += 360;
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}
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G_FLOAT (pr, OFS_RETURN) = yaw;
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}
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/*
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PF_vectoangles
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vector vectoangles(vector)
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*/
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void
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PF_vectoangles (progs_t *pr)
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{
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float forward, pitch, yaw;
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float *value1;
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value1 = G_VECTOR (pr, OFS_PARM0);
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if (value1[1] == 0 && value1[0] == 0) {
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yaw = 0;
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if (value1[2] > 0)
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pitch = 90;
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else
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pitch = 270;
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} else {
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yaw = (int) (atan2 (value1[1], value1[0]) * 180 / M_PI);
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if (yaw < 0)
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yaw += 360;
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forward = sqrt (value1[0] * value1[0] + value1[1] * value1[1]);
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pitch = (int) (atan2 (value1[2], forward) * 180 / M_PI);
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if (pitch < 0)
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pitch += 360;
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}
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G_FLOAT (pr, OFS_RETURN + 0) = pitch;
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G_FLOAT (pr, OFS_RETURN + 1) = yaw;
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G_FLOAT (pr, OFS_RETURN + 2) = 0;
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}
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/*
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PF_Random
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Returns a number from 0<= num < 1
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random()
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*/
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void
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PF_random (progs_t *pr)
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{
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float num;
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num = (rand () & 0x7fff) / ((float) 0x7fff);
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G_FLOAT (pr, OFS_RETURN) = num;
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}
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/*
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PF_break
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break()
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*/
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void
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PF_break (progs_t *pr)
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{
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Sys_Printf ("break statement\n");
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*(int *) -4 = 0; // dump to debugger
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// PR_RunError (pr, "break statement");
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}
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#if 0
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/*
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PF_localcmd
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Sends text to the host's execution buffer
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localcmd (string)
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*/
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void
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PF_localcmd (progs_t *pr)
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{
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const char *str;
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str = G_STRING (pr, OFS_PARM0);
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Cbuf_AddText (str);
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}
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#endif
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/*
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PF_cvar
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float cvar (string)
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*/
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void
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PF_cvar (progs_t *pr)
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{
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const char *str;
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str = G_STRING (pr, OFS_PARM0);
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G_FLOAT (pr, OFS_RETURN) = Cvar_VariableValue (str);
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}
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/*
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PF_cvar_set
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float cvar (string)
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*/
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void
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PF_cvar_set (progs_t *pr)
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{
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const char *var_name, *val;
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cvar_t *var;
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var_name = G_STRING (pr, OFS_PARM0);
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val = G_STRING (pr, OFS_PARM1);
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var = Cvar_FindVar (var_name);
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if (!var)
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var = Cvar_FindAlias (var_name);
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if (!var) {
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Sys_Printf ("PF_cvar_set: variable %s not found\n", var_name);
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return;
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}
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Cvar_Set (var, val);
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}
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void
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PF_fabs (progs_t *pr)
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{
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float v;
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v = G_FLOAT (pr, OFS_PARM0);
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G_FLOAT (pr, OFS_RETURN) = fabs (v);
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}
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// entity (entity start, .string field, string match) find = #5;
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void
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PF_Find (progs_t *pr)
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{
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const char *s = 0, *t; // ev_string
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int i; // ev_vector
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int e, f;
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etype_t type;
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ddef_t *field_def;
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edict_t *ed;
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e = G_EDICTNUM (pr, OFS_PARM0);
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f = G_INT (pr, OFS_PARM1);
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field_def = ED_FieldAtOfs (pr, f);
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if (!field_def)
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PR_RunError (pr, "PF_Find: bad search field");
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type = field_def->type & ~DEF_SAVEGLOBAL;
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if (type == ev_string) {
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s = G_STRING (pr, OFS_PARM2);
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if (!s)
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PR_RunError (pr, "PF_Find: bad search string");
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}
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for (e++; e < *pr->num_edicts; e++) {
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ed = EDICT_NUM (pr, e);
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if (ed->free)
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continue;
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switch (type) {
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case ev_string:
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t = E_STRING (pr, ed, f);
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if (!t)
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continue;
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if (strcmp (t, s))
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continue;
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RETURN_EDICT (pr, ed);
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return;
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case ev_float:
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if (G_FLOAT (pr, OFS_PARM2) != E_FLOAT (ed, f))
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continue;
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RETURN_EDICT (pr, ed);
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return;
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case ev_vector:
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for (i = 0; i <= 2; i++)
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if (G_FLOAT (pr, OFS_PARM2 + i) != E_FLOAT (ed, f + i))
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continue;
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RETURN_EDICT (pr, ed);
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return;
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case ev_integer:
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case ev_entity:
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if (G_INT (pr, OFS_PARM2) != E_INT (ed, f))
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continue;
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RETURN_EDICT (pr, ed);
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return;
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default:
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PR_Error (pr, "PF_Find: unsupported search field");
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}
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}
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RETURN_EDICT (pr, *pr->edicts);
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}
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void
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PF_coredump (progs_t *pr)
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{
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ED_PrintEdicts (pr, "");
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}
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void
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PF_traceon (progs_t *pr)
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{
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pr->pr_trace = true;
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}
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void
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PF_traceoff (progs_t *pr)
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{
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pr->pr_trace = false;
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}
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void
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PF_eprint (progs_t *pr)
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{
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ED_PrintNum (pr, G_EDICTNUM (pr, OFS_PARM0));
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}
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void
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PF_dprint (progs_t *pr)
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{
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Sys_Printf ("%s", PF_VarString (pr, 0));
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}
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void
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PF_rint (progs_t *pr)
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{
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float f;
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f = G_FLOAT (pr, OFS_PARM0);
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if (f > 0)
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G_FLOAT (pr, OFS_RETURN) = (int) (f + 0.5);
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else
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G_FLOAT (pr, OFS_RETURN) = (int) (f - 0.5);
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}
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void
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PF_floor (progs_t *pr)
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{
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G_FLOAT (pr, OFS_RETURN) = floor (G_FLOAT (pr, OFS_PARM0));
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}
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void
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PF_ceil (progs_t *pr)
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{
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G_FLOAT (pr, OFS_RETURN) = ceil (G_FLOAT (pr, OFS_PARM0));
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}
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/*
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PF_nextent
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entity nextent(entity)
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*/
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void
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PF_nextent (progs_t *pr)
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{
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int i;
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edict_t *ent;
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i = G_EDICTNUM (pr, OFS_PARM0);
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while (1) {
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i++;
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if (i == *pr->num_edicts) {
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RETURN_EDICT (pr, *pr->edicts);
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return;
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}
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ent = EDICT_NUM (pr, i);
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if (!ent->free) {
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RETURN_EDICT (pr, ent);
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return;
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}
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}
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}
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// we assume that ints are smaller than floats
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#ifdef FLT_MAX_10_EXP
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# define STRING_BUF (FLT_MAX_10_EXP + 8)
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#else
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# define STRING_BUF 128
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#endif
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/*
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PF_ftoi
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integer (float f) ftoi
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*/
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void
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PF_ftoi (progs_t *pr)
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{
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G_INT (pr, OFS_RETURN) = G_FLOAT (pr, OFS_PARM0);
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}
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/*
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PF_ftos
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string (float f) ftos
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*/
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void
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PF_ftos (progs_t *pr)
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{
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char string[STRING_BUF];
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int i;
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// trimming 0s idea thanks to Maddes
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i = snprintf (string, sizeof (string), "%1.6f", G_FLOAT (pr, OFS_PARM0)) - 1;
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for (; i > 0; i--) {
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if (string[i] == '0')
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string[i] = '\0';
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else if (string[i] == '.') {
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string[i] = '\0';
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break;
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} else
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break;
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}
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RETURN_STRING (pr, string);
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}
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/*
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PF_itof
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float (integer i) itof
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*/
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void
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PF_itof (progs_t *pr)
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{
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G_FLOAT (pr, OFS_RETURN) = G_INT (pr, OFS_PARM0);
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}
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/*
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PF_itos
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string (integer i) itos
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*/
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void
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PF_itos (progs_t *pr)
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{
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char string[STRING_BUF];
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snprintf (string, sizeof (string), "%d", G_INT (pr, OFS_PARM0));
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RETURN_STRING (pr, string);
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}
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/*
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PF_stof
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float (string s) stof
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*/
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void
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PF_stof (progs_t *pr)
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{
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G_FLOAT (pr, OFS_RETURN) = atof (G_STRING (pr, OFS_PARM0));
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}
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/*
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PF_stoi
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integer (string s) stoi
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*/
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void
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PF_stoi (progs_t *pr)
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{
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G_INT (pr, OFS_RETURN) = atoi (G_STRING (pr, OFS_PARM0));
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}
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/*
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PF_stov
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vector (string s) stov
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*/
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void
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PF_stov (progs_t *pr)
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{
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float v[3] = {0, 0, 0};
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sscanf (G_STRING (pr, OFS_PARM0), "'%f %f %f'", v, v + 1, v + 2);
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RETURN_VECTOR (pr, v);
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}
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/*
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PF_vtos
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string (vector v) vtos
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*/
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void
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PF_vtos (progs_t *pr)
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{
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char string[STRING_BUF * 3 + 5];
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snprintf (string, sizeof (string), "'%5.1f %5.1f %5.1f'",
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G_VECTOR (pr, OFS_PARM0)[0],
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G_VECTOR (pr, OFS_PARM0)[1],
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G_VECTOR (pr, OFS_PARM0)[2]);
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RETURN_STRING (pr, string);
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}
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/*
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PF_strlen
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float(string s) strlen
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*/
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void
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PF_strlen (progs_t *pr)
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{
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const char *s;
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s = G_STRING (pr, OFS_PARM0);
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G_FLOAT (pr, OFS_RETURN) = strlen(s);
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}
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/*
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PF_charcount
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float(string char, string s) charcount
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*/
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void
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PF_charcount (progs_t *pr)
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{
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char goal;
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const char *s;
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int count;
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goal = (G_STRING (pr, OFS_PARM0))[0];
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if (goal == '\0') {
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G_FLOAT (pr, OFS_RETURN) = 0;
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return;
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}
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count = 0;
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s = G_STRING (pr, OFS_PARM1);
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while (*s) {
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if (*s == goal)
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count++;
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s++;
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}
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G_FLOAT (pr, OFS_RETURN) = count;
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}
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#if (INT_MAX == 2147483647) && (INT_MIN == -2147483648)
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# define INT_WIDTH 11
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#else /* I hope... */
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# define INT_WIDTH 20
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#endif
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#define MAX_ARG 23
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void
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PF_sprintf (progs_t *pr)
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{
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char *format;
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char *c; // current
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char *out = 0;
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char new_format[INT_WIDTH * 2 + 9]; // "%0-+ #." and conversion
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int fmt_alternate, fmt_leadzero, fmt_leftjust, fmt_minwidth,
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fmt_precision, fmt_signed, fmt_space, fmt_type, looping,
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new_format_i, ret;
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int curarg = 3, out_max = 32, out_size = 0;
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format = G_STRING (pr, OFS_PARM0);
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c = format;
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out = malloc (out_max);
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if (!out)
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goto mallocerror;
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while (*c) {
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if (*c == '%' && c[1] != '%' && c[1] != 's') {
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c++;
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if (curarg > MAX_ARG)
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goto maxargs;
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// flags
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looping = 1;
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fmt_leadzero = 0;
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fmt_leftjust = 0;
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fmt_signed = 0;
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fmt_space = 0;
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fmt_alternate = 0;
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while (looping) {
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switch (*c) {
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case '0': fmt_leadzero = 1; break;
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case '-': fmt_leftjust = 1; break;
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case '+': fmt_signed = 1; break;
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case ' ': fmt_space = 1; break;
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case '#': fmt_alternate = 1; break;
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case '\0': goto endofstring;
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default: looping = 0; continue;
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}
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c++;
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}
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// minimum field width
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fmt_minwidth = 0;
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if (*c >= '1' && *c <= '9')
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while (*c >= '0' && *c <= '9') {
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fmt_minwidth *= 10;
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fmt_minwidth += *c - '0';
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c++;
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}
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else if (*c == '*') {
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fmt_minwidth = G_INT (pr, OFS_PARM0 + curarg);
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curarg += 3;
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}
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// precision
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fmt_precision = -1;
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if (*c == '.') {
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c++;
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if (*c >= '0' && *c <= '9') {
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fmt_precision = 0;
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while (*c >= '0' && *c <= '9') {
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fmt_precision *= 10;
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fmt_precision += *c - '0';
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c++;
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}
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} else if (*c == '*') {
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fmt_precision = G_INT (pr, OFS_PARM0 + curarg);
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curarg += 3;
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}
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}
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if (!*c)
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goto endofstring;
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// length? Nope, not in QC
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fmt_type = *c++;
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// some preperation
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if (fmt_precision < 0)
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switch (fmt_type) {
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case 'i': fmt_precision = 0; break;
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case 'f': fmt_precision = 6; break;
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case 'v': fmt_precision = 1; break;
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}
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// built the format string
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new_format_i = 0;
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new_format[new_format_i++] = '%';
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if (fmt_leadzero) new_format[new_format_i++] = '0';
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if (fmt_leftjust) new_format[new_format_i++] = '-';
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if (fmt_signed) new_format[new_format_i++] = '+';
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if (fmt_space) new_format[new_format_i++] = ' ';
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if (fmt_alternate) new_format[new_format_i++] = '#';
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if (fmt_minwidth)
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if ((new_format_i += snprintf (new_format + new_format_i,
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sizeof (new_format) -
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new_format_i,
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"%d", fmt_minwidth))
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>= sizeof (new_format))
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PR_Error (pr, "PF_sprintf: new_format overflowed?!");
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if (fmt_type != 'i') {
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new_format[new_format_i++] = '.';
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if ((new_format_i += snprintf (new_format + new_format_i,
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sizeof (new_format)
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- new_format_i,
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"%d", fmt_precision))
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>= sizeof (new_format))
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PR_Error (pr, "PF_sprintf: new_format overflowed?!");
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}
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switch (fmt_type) {
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case 'i': new_format[new_format_i++] = 'd'; break;
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case 'f':
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case 'v': new_format[new_format_i++] = 'f'; break;
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default: PR_Error (pr, "PF_sprintf: unknown type '%c'!", *c);
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}
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new_format[new_format_i++] = '\0';
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switch (fmt_type) {
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case 'i':
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while ((ret = snprintf (&out[out_size], out_max - out_size,
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new_format,
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G_INT (pr, OFS_PARM0 + curarg)))
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>= out_max - out_size) {
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char *o;
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out_max *= 2;
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o = realloc (out, out_max);
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if (!o)
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goto mallocerror;
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out = o;
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}
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out_size += ret;
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curarg += 3;
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break;
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case 'f':
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while ((ret = snprintf (&out[out_size], out_max - out_size,
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new_format,
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G_FLOAT (pr, OFS_PARM0 + curarg)))
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>= out_max - out_size) {
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char *o;
|
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out_max *= 2;
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o = realloc (out, out_max);
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if (!o)
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goto mallocerror;
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out = o;
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}
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out_size += ret;
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curarg += 3;
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break;
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case 'v': {
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int i;
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for (i = 0; i <= 2; i++) {
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if (curarg > MAX_ARG)
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goto maxargs;
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while ((ret = snprintf (&out[out_size],
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out_max - out_size, new_format,
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G_FLOAT (pr, OFS_PARM0 +
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curarg)))
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>= out_max - out_size) {
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char *o;
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out_max *= 2;
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o = realloc (out, out_max);
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if (!o)
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goto mallocerror;
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out = o;
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}
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out_size += ret;
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curarg++;
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i++;
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}
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break;
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}
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}
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} else if (*c == '%' && *(c + 1) == 's') {
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char *s;
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if (curarg > MAX_ARG)
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goto maxargs;
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s = G_STRING (pr, OFS_PARM0 + curarg);
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while ((ret = snprintf (&out[out_size], out_max - out_size, "%s",
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s))
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>= out_max - out_size) {
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char *o;
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out_max *= 2;
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o = realloc (out, out_max);
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if (!o)
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goto mallocerror;
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out = o;
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}
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out_size += ret;
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curarg += 3;
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c += 2;
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} else {
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if (*c == '%')
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c++;
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if (out_size == out_max) {
|
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char *o;
|
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out_max *= 2;
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o = realloc (out, out_max);
|
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if (!o)
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|
goto mallocerror;
|
|
out = o;
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}
|
|
out[out_size] = *c;
|
|
out_size++;
|
|
c++;
|
|
}
|
|
}
|
|
if (out_size == out_max) {
|
|
char *o;
|
|
out_max *= 2;
|
|
o = realloc (out, out_max);
|
|
if (!o)
|
|
goto mallocerror;
|
|
out = o;
|
|
}
|
|
out[out_size] = '\0';
|
|
RETURN_STRING (pr, out);
|
|
free (out);
|
|
return;
|
|
|
|
mallocerror:
|
|
// if (errno == ENOMEM)
|
|
// hopefully we can free up some mem so it can be used during shutdown
|
|
// free (out);
|
|
PR_Error (pr, "PF_sprintf: memory allocation error!\n");
|
|
|
|
endofstring:
|
|
PR_Error (pr, "PF_sprintf: unexpected end of string!\n");
|
|
|
|
maxargs:
|
|
PR_Error (pr, "PF_sprintf: argument limit exceeded\n");
|
|
}
|
|
|
|
void
|
|
PR_gametype (progs_t *pr)
|
|
{
|
|
RETURN_STRING (pr, pr_gametype);
|
|
}
|
|
|
|
void
|
|
PR_Cmds_Init (progs_t *pr)
|
|
{
|
|
PR_AddBuiltin (pr, "break", PF_break, 6); // void () break
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|
PR_AddBuiltin (pr, "random", PF_random, 7); // float () random
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|
PR_AddBuiltin (pr, "normalize", PF_normalize, 9); // vector (vector v) normalize
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|
PR_AddBuiltin (pr, "vlen", PF_vlen, 12); // float (vector v) vlen
|
|
PR_AddBuiltin (pr, "vectoyaw", PF_vectoyaw, 13); // float (vector v) vectoyaw
|
|
PR_AddBuiltin (pr, "find", PF_Find, 18); // entity (entity start, .(...) fld, ... match) find
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|
PR_AddBuiltin (pr, "dprint", PF_dprint, 25); // void (string s) dprint
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|
PR_AddBuiltin (pr, "coredump", PF_coredump, 28); // void () coredump
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|
PR_AddBuiltin (pr, "traceon", PF_traceon, 29); // void () traceon
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|
PR_AddBuiltin (pr, "traceoff", PF_traceoff, 30); // void () traceoff
|
|
PR_AddBuiltin (pr, "eprint", PF_eprint, 31); // void (entity e) eprint
|
|
PR_AddBuiltin (pr, "rint", PF_rint, 36); // float (float v) rint
|
|
PR_AddBuiltin (pr, "floor", PF_floor, 37); // float (float v) floor
|
|
PR_AddBuiltin (pr, "ceil", PF_ceil, 38); // float (float v) ceil
|
|
PR_AddBuiltin (pr, "fabs", PF_fabs, 43); // float (float f) fabs
|
|
PR_AddBuiltin (pr, "cvar", PF_cvar, 45); // float (string s) cvar
|
|
#if 0
|
|
PR_AddBuiltin (pr, "localcmd", PF_localcmd, 46); // void (string s) localcmd
|
|
#endif
|
|
PR_AddBuiltin (pr, "nextent", PF_nextent, 47); // entity (entity e) nextent
|
|
PR_AddBuiltin (pr, "vectoangles", PF_vectoangles, 51); // vector (vector v) vectoangles
|
|
PR_AddBuiltin (pr, "cvar_set", PF_cvar_set, 72); // void (string var, string val) cvar_set
|
|
|
|
PR_AddBuiltin (pr, "strlen", PF_strlen, 100); // float (string s) strlen
|
|
PR_AddBuiltin (pr, "charcount", PF_charcount, 101); // float (string goal, string s) charcount
|
|
PR_AddBuiltin (pr, "sprintf", PF_sprintf, 109); // string (...) sprintf
|
|
|
|
PR_AddBuiltin (pr, "ftos", PF_ftos, 26); // string (float f) ftos
|
|
PR_AddBuiltin (pr, "ftoi", PF_ftoi, 110); // integer (float f) ftoi
|
|
PR_AddBuiltin (pr, "itof", PF_itof, 111); // float (integer i) itof
|
|
PR_AddBuiltin (pr, "itos", PF_itos, 112); // string (integer i) itos
|
|
PR_AddBuiltin (pr, "stof", PF_stof, 81); // float (string s) stof
|
|
PR_AddBuiltin (pr, "stoi", PF_stoi, 113); // integer (string s) stoi
|
|
PR_AddBuiltin (pr, "stov", PF_stov, 114); // vector (string s) stov
|
|
PR_AddBuiltin (pr, "vtos", PF_vtos, 27); // string (vector v) vtos
|
|
PR_AddBuiltin (pr, "gametype", PR_gametype, 115); // string () gametype
|
|
};
|