2002-10-23 04:57:08 +00:00
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/*
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pr_parse.c
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map and savegame parsing
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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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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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2003-01-15 15:31:36 +00:00
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static __attribute__ ((unused)) const char rcsid[] =
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"$Id$";
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2002-10-23 04:57:08 +00:00
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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 <stdarg.h>
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#include <stdio.h>
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#include "QF/cbuf.h"
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#include "QF/crc.h"
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#include "QF/cvar.h"
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#include "QF/dstring.h"
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#include "QF/hash.h"
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#include "QF/progs.h"
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#include "QF/qdefs.h"
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2003-07-17 18:27:00 +00:00
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#include "QF/qfplist.h"
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2002-10-23 04:57:08 +00:00
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#include "QF/qendian.h"
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#include "QF/quakefs.h"
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2004-11-12 02:39:00 +00:00
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#include "QF/script.h"
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2002-10-23 04:57:08 +00:00
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#include "QF/sys.h"
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#include "QF/zone.h"
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#include "QF/va.h"
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#include "compat.h"
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/*
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PR_UglyValueString
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Returns a string describing *data in a type specific manner
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Easier to parse than PR_ValueString
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*/
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2003-01-06 18:28:13 +00:00
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static char *
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2002-10-23 04:57:08 +00:00
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PR_UglyValueString (progs_t *pr, etype_t type, pr_type_t *val)
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{
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2005-01-02 14:23:20 +00:00
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static char line[256];
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2002-10-23 04:57:08 +00:00
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ddef_t *def;
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dfunction_t *f;
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type &= ~DEF_SAVEGLOBAL;
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switch (type) {
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case ev_string:
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snprintf (line, sizeof (line), "%s",
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PR_GetString (pr, val->string_var));
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break;
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case ev_entity:
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2005-01-02 14:23:20 +00:00
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snprintf (line, sizeof (line), "%ld",
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2002-10-23 04:57:08 +00:00
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NUM_FOR_BAD_EDICT (pr, PROG_TO_EDICT (pr, val->entity_var)));
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break;
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case ev_func:
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f = pr->pr_functions + val->func_var;
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snprintf (line, sizeof (line), "%s", PR_GetString (pr, f->s_name));
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break;
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case ev_field:
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2004-11-05 11:49:00 +00:00
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def = PR_FieldAtOfs (pr, val->integer_var);
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2002-10-23 04:57:08 +00:00
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snprintf (line, sizeof (line), "%s",
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PR_GetString (pr, def->s_name));
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break;
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case ev_void:
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strcpy (line, "void");
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break;
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case ev_float:
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snprintf (line, sizeof (line), "%f", val->float_var);
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break;
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case ev_vector:
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snprintf (line, sizeof (line), "%f %f %f", val->vector_var[0],
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val->vector_var[1], val->vector_var[2]);
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break;
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default:
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snprintf (line, sizeof (line), "bad type %i", type);
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break;
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}
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return line;
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}
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/*
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ED_Write
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For savegames
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*/
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void
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ED_Write (progs_t *pr, QFile *f, edict_t *ed)
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{
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2003-04-17 00:01:48 +00:00
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unsigned int i;
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int j;
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2003-11-21 21:34:53 +00:00
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int type;
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const char *name;
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ddef_t *d;
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pr_type_t *v;
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2002-10-23 04:57:08 +00:00
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Qprintf (f, "{\n");
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if (ed->free) {
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Qprintf (f, "}\n");
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return;
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}
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for (i = 1; i < pr->progs->numfielddefs; i++) {
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d = &pr->pr_fielddefs[i];
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name = PR_GetString (pr, d->s_name);
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if (name[strlen (name) - 2] == '_')
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continue; // skip _x, _y, _z vars
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v = &ed->v[d->ofs];
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// if the value is still all 0, skip the field
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type = d->type & ~DEF_SAVEGLOBAL;
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for (j = 0; j < pr_type_size[type]; j++)
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if (v[j].integer_var)
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break;
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if (j == pr_type_size[type])
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continue;
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Qprintf (f, "\"%s\" ", name);
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Qprintf (f, "\"%s\"\n", PR_UglyValueString (pr, d->type, v));
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}
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Qprintf (f, "}\n");
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}
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/*
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ARCHIVING GLOBALS
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FIXME: need to tag constants, doesn't really work
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*/
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void
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ED_WriteGlobals (progs_t *pr, QFile *f)
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{
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2003-11-21 21:34:53 +00:00
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ddef_t *def;
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2003-04-17 00:01:48 +00:00
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unsigned int i;
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2003-11-21 21:34:53 +00:00
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const char *name;
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int type;
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2002-10-23 04:57:08 +00:00
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Qprintf (f, "{\n");
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for (i = 0; i < pr->progs->numglobaldefs; i++) {
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def = &pr->pr_globaldefs[i];
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type = def->type;
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if (!(def->type & DEF_SAVEGLOBAL))
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continue;
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type &= ~DEF_SAVEGLOBAL;
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if (type != ev_string && type != ev_float && type != ev_entity)
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continue;
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name = PR_GetString (pr, def->s_name);
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Qprintf (f, "\"%s\" ", name);
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Qprintf (f, "\"%s\"\n",
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PR_UglyValueString (pr, type, &pr->pr_globals[def->ofs]));
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}
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Qprintf (f, "}\n");
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}
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2004-01-07 05:22:57 +00:00
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static int
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2002-10-23 04:57:08 +00:00
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ED_NewString (progs_t *pr, const char *string)
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{
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char *new, *new_p;
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int i, l;
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l = strlen (string) + 1;
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2004-11-02 04:59:00 +00:00
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new = alloca (l);
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2002-10-23 04:57:08 +00:00
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new_p = new;
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for (i = 0; i < l; i++) {
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if (string[i] == '\\' && i < l - 1) {
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i++;
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if (string[i] == 'n')
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*new_p++ = '\n';
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else
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*new_p++ = '\\';
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} else
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*new_p++ = string[i];
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}
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2004-01-07 05:22:57 +00:00
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return PR_SetString (pr, new);
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2002-10-23 04:57:08 +00:00
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}
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/*
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ED_ParseEval
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Can parse either fields or globals
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returns false if error
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*/
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2004-11-12 02:39:00 +00:00
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qboolean
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2002-10-23 04:57:08 +00:00
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ED_ParseEpair (progs_t *pr, pr_type_t *base, ddef_t *key, const char *s)
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{
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int i;
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2003-05-08 23:24:02 +00:00
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char *string;
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2002-10-23 04:57:08 +00:00
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ddef_t *def;
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char *v, *w;
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pr_type_t *d;
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dfunction_t *func;
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d = &base[key->ofs];
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switch (key->type & ~DEF_SAVEGLOBAL) {
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case ev_string:
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2004-01-07 05:22:57 +00:00
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d->string_var = ED_NewString (pr, s);
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2002-10-23 04:57:08 +00:00
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break;
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case ev_float:
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d->float_var = atof (s);
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break;
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case ev_vector:
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2003-05-08 23:24:02 +00:00
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string = strdup (s);
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2002-10-23 04:57:08 +00:00
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v = string;
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w = string;
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for (i = 0; i < 3; i++) {
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while (*v && *v != ' ')
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v++;
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*v = 0;
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d->vector_var[i] = atof (w);
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w = v = v + 1;
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}
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2003-05-08 23:24:02 +00:00
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free (string);
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2002-10-23 04:57:08 +00:00
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break;
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case ev_entity:
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d->entity_var = EDICT_TO_PROG (pr, EDICT_NUM (pr, atoi (s)));
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break;
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case ev_field:
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2004-11-05 11:49:00 +00:00
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def = PR_FindField (pr, s);
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2002-10-23 04:57:08 +00:00
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if (!def) {
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Sys_Printf ("Can't find field %s\n", s);
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return false;
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}
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d->integer_var = G_INT (pr, def->ofs);
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break;
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case ev_func:
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2004-11-05 11:49:00 +00:00
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func = PR_FindFunction (pr, s);
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2002-10-23 04:57:08 +00:00
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if (!func) {
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Sys_Printf ("Can't find function %s\n", s);
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return false;
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}
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d->func_var = func - pr->pr_functions;
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break;
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default:
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break;
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}
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return true;
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}
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/*
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ED_ParseEdict
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Parses an edict out of the given string, returning the new position
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2003-03-25 17:40:02 +00:00
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ent should be a properly initialized empty edict.
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2002-10-23 04:57:08 +00:00
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Used for initial level load and for savegames.
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*/
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2004-11-12 02:39:00 +00:00
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void
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ED_ParseEdict (progs_t *pr, script_t *script, edict_t *ent)
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2002-10-23 04:57:08 +00:00
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{
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ddef_t *key;
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qboolean anglehack;
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qboolean init = false;
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2003-05-08 23:24:02 +00:00
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dstring_t *keyname = dstring_new ();
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2002-10-23 04:57:08 +00:00
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const char *token;
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int n;
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// clear it
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if (ent != *(pr)->edicts) // hack
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memset (&ent->v, 0, pr->progs->entityfields * 4);
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2004-11-12 02:39:00 +00:00
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// go through all the dictionary pairs
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while (1) {
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if (!Script_GetToken (script, 1))
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PR_Error (pr, "ED_ParseEntity: EOF without closing brace");
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2002-10-23 04:57:08 +00:00
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// parse key
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2004-11-12 02:39:00 +00:00
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if (script->token->str[0] == '}')
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2002-10-23 04:57:08 +00:00
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break;
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2004-11-12 02:39:00 +00:00
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token = script->token->str;
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2002-10-23 04:57:08 +00:00
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// anglehack is to allow QuakeEd to write single scalar angles
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2004-11-12 02:39:00 +00:00
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// and allow them to be turned into vectors.
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2002-10-23 04:57:08 +00:00
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if (!strcmp (token, "angle")) {
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token = "angles";
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anglehack = true;
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} else
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anglehack = false;
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if (!strcmp (token, "light"))
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token = "light_lev"; // hack for single light def
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2003-05-08 23:24:02 +00:00
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dstring_copystr (keyname, token);
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2002-10-23 04:57:08 +00:00
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// another hack to fix heynames with trailing spaces
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2003-05-08 23:24:02 +00:00
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n = strlen (keyname->str);
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while (n && keyname->str[n - 1] == ' ') {
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keyname->str[n - 1] = 0;
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2002-10-23 04:57:08 +00:00
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n--;
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}
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// parse value
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2004-11-12 02:39:00 +00:00
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//FIXME shouldn't cross line
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if (!Script_GetToken (script, 1))
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2002-10-23 04:57:08 +00:00
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PR_Error (pr, "ED_ParseEntity: EOF without closing brace");
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2004-11-12 02:39:00 +00:00
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token = script->token->str;
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2002-10-23 04:57:08 +00:00
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2004-11-12 02:39:00 +00:00
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if (token[0] == '}')
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2002-10-23 04:57:08 +00:00
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PR_Error (pr, "ED_ParseEntity: closing brace without data");
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init = true;
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// keynames with a leading underscore are used for utility comments,
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// and are immediately discarded by quake
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2003-05-08 23:24:02 +00:00
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if (keyname->str[0] == '_')
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2002-10-23 04:57:08 +00:00
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continue;
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|
|
2004-11-05 11:49:00 +00:00
|
|
|
key = PR_FindField (pr, keyname->str);
|
2002-10-23 04:57:08 +00:00
|
|
|
if (!key) {
|
2003-05-08 23:24:02 +00:00
|
|
|
if (!pr->parse_field
|
2004-11-12 02:39:00 +00:00
|
|
|
|| !pr->parse_field (pr, keyname->str, token)) {
|
2003-05-08 23:24:02 +00:00
|
|
|
Sys_Printf ("'%s' is not a field\n", keyname->str);
|
2002-10-23 04:57:08 +00:00
|
|
|
continue;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
if (anglehack) {
|
2004-11-05 11:49:00 +00:00
|
|
|
ret = ED_ParseEpair (pr, ent->v, key, va ("0 %s 0", token));
|
2002-10-23 04:57:08 +00:00
|
|
|
} else {
|
2004-11-05 11:49:00 +00:00
|
|
|
ret = ED_ParseEpair (pr, ent->v, key, token);
|
2002-10-23 04:57:08 +00:00
|
|
|
}
|
|
|
|
if (!ret)
|
|
|
|
PR_Error (pr, "ED_ParseEdict: parse error");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!init)
|
|
|
|
ent->free = true;
|
|
|
|
|
2003-05-08 23:24:02 +00:00
|
|
|
dstring_delete (keyname);
|
2002-10-23 04:57:08 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void
|
2004-11-05 11:49:00 +00:00
|
|
|
ED_ParseGlobals (progs_t *pr, script_t *script)
|
2002-10-23 04:57:08 +00:00
|
|
|
{
|
2004-11-12 02:39:00 +00:00
|
|
|
dstring_t *keyname = dstring_new ();
|
|
|
|
ddef_t *key;
|
|
|
|
const char *token;
|
2002-10-23 04:57:08 +00:00
|
|
|
|
|
|
|
while (1) {
|
|
|
|
// parse key
|
2004-11-12 02:39:00 +00:00
|
|
|
if (!Script_GetToken (script, 1))
|
2002-10-23 04:57:08 +00:00
|
|
|
PR_Error (pr, "ED_ParseEntity: EOF without closing brace");
|
2004-11-12 02:39:00 +00:00
|
|
|
token = script->token->str;
|
|
|
|
if (token[0] == '}')
|
|
|
|
break;
|
2002-10-23 04:57:08 +00:00
|
|
|
|
2004-11-12 02:39:00 +00:00
|
|
|
dstring_copystr (keyname, script->token->str);
|
2002-10-23 04:57:08 +00:00
|
|
|
|
|
|
|
// parse value
|
2004-11-12 02:39:00 +00:00
|
|
|
//FIXME shouldn't cross line
|
|
|
|
if (!Script_GetToken (script, 1))
|
2002-10-23 04:57:08 +00:00
|
|
|
PR_Error (pr, "ED_ParseEntity: EOF without closing brace");
|
2004-11-12 02:39:00 +00:00
|
|
|
token = script->token->str;
|
2002-10-23 04:57:08 +00:00
|
|
|
|
2004-11-12 02:39:00 +00:00
|
|
|
if (token[0] == '}')
|
2002-10-23 04:57:08 +00:00
|
|
|
PR_Error (pr, "ED_ParseEntity: closing brace without data");
|
|
|
|
|
2003-05-08 23:24:02 +00:00
|
|
|
key = PR_FindGlobal (pr, keyname->str);
|
2002-10-23 04:57:08 +00:00
|
|
|
if (!key) {
|
2003-05-08 23:24:02 +00:00
|
|
|
Sys_Printf ("'%s' is not a global\n", keyname->str);
|
2002-10-23 04:57:08 +00:00
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2004-11-12 02:39:00 +00:00
|
|
|
if (!ED_ParseEpair (pr, pr->pr_globals, key, token))
|
2002-10-23 04:57:08 +00:00
|
|
|
PR_Error (pr, "ED_ParseGlobals: parse error");
|
|
|
|
}
|
2003-05-08 23:24:02 +00:00
|
|
|
dstring_delete (keyname);
|
2002-10-23 04:57:08 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2003-07-17 18:27:00 +00:00
|
|
|
ED_ParseOld
|
2002-10-23 04:57:08 +00:00
|
|
|
|
|
|
|
The entities are directly placed in the array, rather than allocated with
|
|
|
|
ED_Alloc, because otherwise an error loading the map would have entity
|
|
|
|
number references out of order.
|
|
|
|
|
|
|
|
Creates a server's entity / program execution context by
|
|
|
|
parsing textual entity definitions out of an ent file.
|
|
|
|
|
|
|
|
Used for both fresh maps and savegame loads. A fresh map would also need
|
|
|
|
to call ED_CallSpawnFunctions () to let the objects initialize themselves.
|
|
|
|
*/
|
2003-07-17 18:27:00 +00:00
|
|
|
static void
|
2004-11-12 02:39:00 +00:00
|
|
|
ED_ParseOld (progs_t *pr, script_t *script)
|
2002-10-23 04:57:08 +00:00
|
|
|
{
|
|
|
|
edict_t *ent = NULL;
|
|
|
|
int inhibit = 0;
|
|
|
|
dfunction_t *func;
|
|
|
|
pr_type_t *classname;
|
|
|
|
ddef_t *def;
|
|
|
|
|
2004-11-12 02:39:00 +00:00
|
|
|
while (Script_GetToken (script, 1)) { // parse ents
|
2003-03-25 17:40:02 +00:00
|
|
|
// parse the opening brace
|
2004-11-12 02:39:00 +00:00
|
|
|
if (script->token->str[0] != '{')
|
|
|
|
PR_Error (pr, "ED_LoadFromFile: found %s when expecting {",
|
|
|
|
script->token->str);
|
2002-10-23 04:57:08 +00:00
|
|
|
|
|
|
|
if (!ent)
|
|
|
|
ent = EDICT_NUM (pr, 0);
|
|
|
|
else
|
|
|
|
ent = ED_Alloc (pr);
|
2004-11-12 02:39:00 +00:00
|
|
|
ED_ParseEdict (pr, script, ent);
|
2002-10-23 04:57:08 +00:00
|
|
|
|
|
|
|
// remove things from different skill levels or deathmatch
|
|
|
|
if (pr->prune_edict && pr->prune_edict (pr, ent)) {
|
|
|
|
ED_Free (pr, ent);
|
|
|
|
inhibit++;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
// immediately call spawn function
|
2004-11-05 11:49:00 +00:00
|
|
|
def = PR_FindField (pr, "classname");
|
2002-10-23 04:57:08 +00:00
|
|
|
if (!def) {
|
|
|
|
Sys_Printf ("No classname for:\n");
|
|
|
|
ED_Print (pr, ent);
|
|
|
|
ED_Free (pr, ent);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
classname = &ent->v[def->ofs];
|
|
|
|
|
|
|
|
// look for the spawn function
|
2004-11-05 11:49:00 +00:00
|
|
|
func = PR_FindFunction (pr, PR_GetString (pr, classname->string_var));
|
2002-10-23 04:57:08 +00:00
|
|
|
if (!func) {
|
|
|
|
Sys_Printf ("No spawn function for:\n");
|
|
|
|
ED_Print (pr, ent);
|
|
|
|
ED_Free (pr, ent);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
*pr->globals.self = EDICT_TO_PROG (pr, ent);
|
|
|
|
PR_ExecuteProgram (pr, func - pr->pr_functions);
|
|
|
|
if (pr->flush)
|
|
|
|
pr->flush ();
|
|
|
|
}
|
|
|
|
|
|
|
|
Sys_DPrintf ("%i entities inhibited\n", inhibit);
|
|
|
|
}
|
2003-07-17 18:27:00 +00:00
|
|
|
|
|
|
|
void
|
|
|
|
ED_LoadFromFile (progs_t *pr, const char *data)
|
|
|
|
{
|
2004-11-12 02:39:00 +00:00
|
|
|
script_t *script;
|
|
|
|
|
|
|
|
if (pr->edict_parse) {
|
|
|
|
PR_PushFrame (pr);
|
|
|
|
P_INT (pr, 0) = PR_SetTempString (pr, data);
|
|
|
|
PR_ExecuteProgram (pr, pr->edict_parse);
|
|
|
|
PR_PopFrame (pr);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
script = Script_New ();
|
|
|
|
Script_Start (script, "ent data", data);
|
|
|
|
|
|
|
|
if (Script_GetToken (script, 1)) {
|
|
|
|
if (*script->token->str == '(') {
|
|
|
|
// new style (plist) entity data
|
|
|
|
plitem_t *plist = PL_GetPropertyList (data);
|
|
|
|
plist = plist;
|
|
|
|
} else {
|
|
|
|
// oldstyle entity data
|
|
|
|
Script_UngetToken (script);
|
|
|
|
ED_ParseOld (pr, script);
|
|
|
|
}
|
2003-07-17 18:27:00 +00:00
|
|
|
}
|
2004-11-12 02:39:00 +00:00
|
|
|
Script_Delete (script);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
ED_EntityParseFunction (progs_t *pr)
|
|
|
|
{
|
|
|
|
pr->edict_parse = P_FUNCTION (pr, 0);
|
2003-07-17 18:27:00 +00:00
|
|
|
}
|