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707e849 @tbradshaw The Quake 2 tools as originally released under the GPL license.
tbradshaw authored Jan 31, 2012
1 /*
2 ===========================================================================
3 Copyright (C) 1997-2006 Id Software, Inc.
4
5 This file is part of Quake 2 Tools source code.
6
7 Quake 2 Tools source code is free software; you can redistribute it
8 and/or modify it under the terms of the GNU General Public License as
9 published by the Free Software Foundation; either version 2 of the License,
10 or (at your option) any later version.
11
12 Quake 2 Tools source code is distributed in the hope that it will be
13 useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with Quake 2 Tools source code; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 ===========================================================================
21 */
22
23 #include "cmdlib.h"
24 #include "mathlib.h"
25 #include "bspfile.h"
26 #include "scriplib.h"
27
28 void GetLeafNums (void);
29
30 //=============================================================================
31
32 int nummodels;
33 dmodel_t dmodels[MAX_MAP_MODELS];
34
35 int visdatasize;
36 byte dvisdata[MAX_MAP_VISIBILITY];
37 dvis_t *dvis = (dvis_t *)dvisdata;
38
39 int lightdatasize;
40 byte dlightdata[MAX_MAP_LIGHTING];
41
42 int entdatasize;
43 char dentdata[MAX_MAP_ENTSTRING];
44
45 int numleafs;
46 dleaf_t dleafs[MAX_MAP_LEAFS];
47
48 int numplanes;
49 dplane_t dplanes[MAX_MAP_PLANES];
50
51 int numvertexes;
52 dvertex_t dvertexes[MAX_MAP_VERTS];
53
54 int numnodes;
55 dnode_t dnodes[MAX_MAP_NODES];
56
57 int numtexinfo;
58 texinfo_t texinfo[MAX_MAP_TEXINFO];
59
60 int numfaces;
61 dface_t dfaces[MAX_MAP_FACES];
62
63 int numedges;
64 dedge_t dedges[MAX_MAP_EDGES];
65
66 int numleaffaces;
67 unsigned short dleaffaces[MAX_MAP_LEAFFACES];
68
69 int numleafbrushes;
70 unsigned short dleafbrushes[MAX_MAP_LEAFBRUSHES];
71
72 int numsurfedges;
73 int dsurfedges[MAX_MAP_SURFEDGES];
74
75 int numbrushes;
76 dbrush_t dbrushes[MAX_MAP_BRUSHES];
77
78 int numbrushsides;
79 dbrushside_t dbrushsides[MAX_MAP_BRUSHSIDES];
80
81 int numareas;
82 darea_t dareas[MAX_MAP_AREAS];
83
84 int numareaportals;
85 dareaportal_t dareaportals[MAX_MAP_AREAPORTALS];
86
87 byte dpop[256];
88
89 /*
90 ===============
91 CompressVis
92
93 ===============
94 */
95 int CompressVis (byte *vis, byte *dest)
96 {
97 int j;
98 int rep;
99 int visrow;
100 byte *dest_p;
101
102 dest_p = dest;
103 // visrow = (r_numvisleafs + 7)>>3;
104 visrow = (dvis->numclusters + 7)>>3;
105
106 for (j=0 ; j<visrow ; j++)
107 {
108 *dest_p++ = vis[j];
109 if (vis[j])
110 continue;
111
112 rep = 1;
113 for ( j++; j<visrow ; j++)
114 if (vis[j] || rep == 255)
115 break;
116 else
117 rep++;
118 *dest_p++ = rep;
119 j--;
120 }
121
122 return dest_p - dest;
123 }
124
125
126 /*
127 ===================
128 DecompressVis
129 ===================
130 */
131 void DecompressVis (byte *in, byte *decompressed)
132 {
133 int c;
134 byte *out;
135 int row;
136
137 // row = (r_numvisleafs+7)>>3;
138 row = (dvis->numclusters+7)>>3;
139 out = decompressed;
140
141 do
142 {
143 if (*in)
144 {
145 *out++ = *in++;
146 continue;
147 }
148
149 c = in[1];
150 if (!c)
151 Error ("DecompressVis: 0 repeat");
152 in += 2;
153 while (c)
154 {
155 *out++ = 0;
156 c--;
157 }
158 } while (out - decompressed < row);
159 }
160
161 //=============================================================================
162
163 /*
164 =============
165 SwapBSPFile
166
167 Byte swaps all data in a bsp file.
168 =============
169 */
170 void SwapBSPFile (qboolean todisk)
171 {
172 int i, j;
173 dmodel_t *d;
174
175
176 // models
177 for (i=0 ; i<nummodels ; i++)
178 {
179 d = &dmodels[i];
180
181 d->firstface = LittleLong (d->firstface);
182 d->numfaces = LittleLong (d->numfaces);
183 d->headnode = LittleLong (d->headnode);
184
185 for (j=0 ; j<3 ; j++)
186 {
187 d->mins[j] = LittleFloat(d->mins[j]);
188 d->maxs[j] = LittleFloat(d->maxs[j]);
189 d->origin[j] = LittleFloat(d->origin[j]);
190 }
191 }
192
193 //
194 // vertexes
195 //
196 for (i=0 ; i<numvertexes ; i++)
197 {
198 for (j=0 ; j<3 ; j++)
199 dvertexes[i].point[j] = LittleFloat (dvertexes[i].point[j]);
200 }
201
202 //
203 // planes
204 //
205 for (i=0 ; i<numplanes ; i++)
206 {
207 for (j=0 ; j<3 ; j++)
208 dplanes[i].normal[j] = LittleFloat (dplanes[i].normal[j]);
209 dplanes[i].dist = LittleFloat (dplanes[i].dist);
210 dplanes[i].type = LittleLong (dplanes[i].type);
211 }
212
213 //
214 // texinfos
215 //
216 for (i=0 ; i<numtexinfo ; i++)
217 {
218 for (j=0 ; j<8 ; j++)
219 texinfo[i].vecs[0][j] = LittleFloat (texinfo[i].vecs[0][j]);
220 texinfo[i].flags = LittleLong (texinfo[i].flags);
221 texinfo[i].value = LittleLong (texinfo[i].value);
222 texinfo[i].nexttexinfo = LittleLong (texinfo[i].nexttexinfo);
223 }
224
225 //
226 // faces
227 //
228 for (i=0 ; i<numfaces ; i++)
229 {
230 dfaces[i].texinfo = LittleShort (dfaces[i].texinfo);
231 dfaces[i].planenum = LittleShort (dfaces[i].planenum);
232 dfaces[i].side = LittleShort (dfaces[i].side);
233 dfaces[i].lightofs = LittleLong (dfaces[i].lightofs);
234 dfaces[i].firstedge = LittleLong (dfaces[i].firstedge);
235 dfaces[i].numedges = LittleShort (dfaces[i].numedges);
236 }
237
238 //
239 // nodes
240 //
241 for (i=0 ; i<numnodes ; i++)
242 {
243 dnodes[i].planenum = LittleLong (dnodes[i].planenum);
244 for (j=0 ; j<3 ; j++)
245 {
246 dnodes[i].mins[j] = LittleShort (dnodes[i].mins[j]);
247 dnodes[i].maxs[j] = LittleShort (dnodes[i].maxs[j]);
248 }
249 dnodes[i].children[0] = LittleLong (dnodes[i].children[0]);
250 dnodes[i].children[1] = LittleLong (dnodes[i].children[1]);
251 dnodes[i].firstface = LittleShort (dnodes[i].firstface);
252 dnodes[i].numfaces = LittleShort (dnodes[i].numfaces);
253 }
254
255 //
256 // leafs
257 //
258 for (i=0 ; i<numleafs ; i++)
259 {
260 dleafs[i].contents = LittleLong (dleafs[i].contents);
261 dleafs[i].cluster = LittleShort (dleafs[i].cluster);
262 dleafs[i].area = LittleShort (dleafs[i].area);
263 for (j=0 ; j<3 ; j++)
264 {
265 dleafs[i].mins[j] = LittleShort (dleafs[i].mins[j]);
266 dleafs[i].maxs[j] = LittleShort (dleafs[i].maxs[j]);
267 }
268
269 dleafs[i].firstleafface = LittleShort (dleafs[i].firstleafface);
270 dleafs[i].numleaffaces = LittleShort (dleafs[i].numleaffaces);
271 dleafs[i].firstleafbrush = LittleShort (dleafs[i].firstleafbrush);
272 dleafs[i].numleafbrushes = LittleShort (dleafs[i].numleafbrushes);
273 }
274
275 //
276 // leaffaces
277 //
278 for (i=0 ; i<numleaffaces ; i++)
279 dleaffaces[i] = LittleShort (dleaffaces[i]);
280
281 //
282 // leafbrushes
283 //
284 for (i=0 ; i<numleafbrushes ; i++)
285 dleafbrushes[i] = LittleShort (dleafbrushes[i]);
286
287 //
288 // surfedges
289 //
290 for (i=0 ; i<numsurfedges ; i++)
291 dsurfedges[i] = LittleLong (dsurfedges[i]);
292
293 //
294 // edges
295 //
296 for (i=0 ; i<numedges ; i++)
297 {
298 dedges[i].v[0] = LittleShort (dedges[i].v[0]);
299 dedges[i].v[1] = LittleShort (dedges[i].v[1]);
300 }
301
302 //
303 // brushes
304 //
305 for (i=0 ; i<numbrushes ; i++)
306 {
307 dbrushes[i].firstside = LittleLong (dbrushes[i].firstside);
308 dbrushes[i].numsides = LittleLong (dbrushes[i].numsides);
309 dbrushes[i].contents = LittleLong (dbrushes[i].contents);
310 }
311
312 //
313 // areas
314 //
315 for (i=0 ; i<numareas ; i++)
316 {
317 dareas[i].numareaportals = LittleLong (dareas[i].numareaportals);
318 dareas[i].firstareaportal = LittleLong (dareas[i].firstareaportal);
319 }
320
321 //
322 // areasportals
323 //
324 for (i=0 ; i<numareaportals ; i++)
325 {
326 dareaportals[i].portalnum = LittleLong (dareaportals[i].portalnum);
327 dareaportals[i].otherarea = LittleLong (dareaportals[i].otherarea);
328 }
329
330 //
331 // brushsides
332 //
333 for (i=0 ; i<numbrushsides ; i++)
334 {
335 dbrushsides[i].planenum = LittleShort (dbrushsides[i].planenum);
336 dbrushsides[i].texinfo = LittleShort (dbrushsides[i].texinfo);
337 }
338
339 //
340 // visibility
341 //
342 if (todisk)
343 j = dvis->numclusters;
344 else
345 j = LittleLong(dvis->numclusters);
346 dvis->numclusters = LittleLong (dvis->numclusters);
347 for (i=0 ; i<j ; i++)
348 {
349 dvis->bitofs[i][0] = LittleLong (dvis->bitofs[i][0]);
350 dvis->bitofs[i][1] = LittleLong (dvis->bitofs[i][1]);
351 }
352 }
353
354
355 dheader_t *header;
356
357 int CopyLump (int lump, void *dest, int size)
358 {
359 int length, ofs;
360
361 length = header->lumps[lump].filelen;
362 ofs = header->lumps[lump].fileofs;
363
364 if (length % size)
365 Error ("LoadBSPFile: odd lump size");
366
367 memcpy (dest, (byte *)header + ofs, length);
368
369 return length / size;
370 }
371
372 /*
373 =============
374 LoadBSPFile
375 =============
376 */
377 void LoadBSPFile (char *filename)
378 {
379 int i;
380
381 //
382 // load the file header
383 //
384 LoadFile (filename, (void **)&header);
385
386 // swap the header
387 for (i=0 ; i< sizeof(dheader_t)/4 ; i++)
388 ((int *)header)[i] = LittleLong ( ((int *)header)[i]);
389
390 if (header->ident != IDBSPHEADER)
391 Error ("%s is not a IBSP file", filename);
392 if (header->version != BSPVERSION)
393 Error ("%s is version %i, not %i", filename, header->version, BSPVERSION);
394
395 nummodels = CopyLump (LUMP_MODELS, dmodels, sizeof(dmodel_t));
396 numvertexes = CopyLump (LUMP_VERTEXES, dvertexes, sizeof(dvertex_t));
397 numplanes = CopyLump (LUMP_PLANES, dplanes, sizeof(dplane_t));
398 numleafs = CopyLump (LUMP_LEAFS, dleafs, sizeof(dleaf_t));
399 numnodes = CopyLump (LUMP_NODES, dnodes, sizeof(dnode_t));
400 numtexinfo = CopyLump (LUMP_TEXINFO, texinfo, sizeof(texinfo_t));
401 numfaces = CopyLump (LUMP_FACES, dfaces, sizeof(dface_t));
402 numleaffaces = CopyLump (LUMP_LEAFFACES, dleaffaces, sizeof(dleaffaces[0]));
403 numleafbrushes = CopyLump (LUMP_LEAFBRUSHES, dleafbrushes, sizeof(dleafbrushes[0]));
404 numsurfedges = CopyLump (LUMP_SURFEDGES, dsurfedges, sizeof(dsurfedges[0]));
405 numedges = CopyLump (LUMP_EDGES, dedges, sizeof(dedge_t));
406 numbrushes = CopyLump (LUMP_BRUSHES, dbrushes, sizeof(dbrush_t));
407 numbrushsides = CopyLump (LUMP_BRUSHSIDES, dbrushsides, sizeof(dbrushside_t));
408 numareas = CopyLump (LUMP_AREAS, dareas, sizeof(darea_t));
409 numareaportals = CopyLump (LUMP_AREAPORTALS, dareaportals, sizeof(dareaportal_t));
410
411 visdatasize = CopyLump (LUMP_VISIBILITY, dvisdata, 1);
412 lightdatasize = CopyLump (LUMP_LIGHTING, dlightdata, 1);
413 entdatasize = CopyLump (LUMP_ENTITIES, dentdata, 1);
414
415 CopyLump (LUMP_POP, dpop, 1);
416
417 free (header); // everything has been copied out
418
419 //
420 // swap everything
421 //
422 SwapBSPFile (false);
423 }
424
425
426 /*
427 =============
428 LoadBSPFileTexinfo
429
430 Only loads the texinfo lump, so qdata can scan for textures
431 =============
432 */
433 void LoadBSPFileTexinfo (char *filename)
434 {
435 int i;
436 FILE *f;
437 int length, ofs;
438
439 header = malloc(sizeof(dheader_t));
440
441 f = fopen (filename, "rb");
442 fread (header, sizeof(dheader_t), 1, f);
443
444 // swap the header
445 for (i=0 ; i< sizeof(dheader_t)/4 ; i++)
446 ((int *)header)[i] = LittleLong ( ((int *)header)[i]);
447
448 if (header->ident != IDBSPHEADER)
449 Error ("%s is not a IBSP file", filename);
450 if (header->version != BSPVERSION)
451 Error ("%s is version %i, not %i", filename, header->version, BSPVERSION);
452
453
454 length = header->lumps[LUMP_TEXINFO].filelen;
455 ofs = header->lumps[LUMP_TEXINFO].fileofs;
456
457 fseek (f, ofs, SEEK_SET);
458 fread (texinfo, length, 1, f);
459 fclose (f);
460
461 numtexinfo = length / sizeof(texinfo_t);
462
463 free (header); // everything has been copied out
464
465 SwapBSPFile (false);
466 }
467
468
469 //============================================================================
470
471 FILE *wadfile;
472 dheader_t outheader;
473
474 void AddLump (int lumpnum, void *data, int len)
475 {
476 lump_t *lump;
477
478 lump = &header->lumps[lumpnum];
479
480 lump->fileofs = LittleLong( ftell(wadfile) );
481 lump->filelen = LittleLong(len);
482 SafeWrite (wadfile, data, (len+3)&~3);
483 }
484
485 /*
486 =============
487 WriteBSPFile
488
489 Swaps the bsp file in place, so it should not be referenced again
490 =============
491 */
492 void WriteBSPFile (char *filename)
493 {
494 header = &outheader;
495 memset (header, 0, sizeof(dheader_t));
496
497 SwapBSPFile (true);
498
499 header->ident = LittleLong (IDBSPHEADER);
500 header->version = LittleLong (BSPVERSION);
501
502 wadfile = SafeOpenWrite (filename);
503 SafeWrite (wadfile, header, sizeof(dheader_t)); // overwritten later
504
505 AddLump (LUMP_PLANES, dplanes, numplanes*sizeof(dplane_t));
506 AddLump (LUMP_LEAFS, dleafs, numleafs*sizeof(dleaf_t));
507 AddLump (LUMP_VERTEXES, dvertexes, numvertexes*sizeof(dvertex_t));
508 AddLump (LUMP_NODES, dnodes, numnodes*sizeof(dnode_t));
509 AddLump (LUMP_TEXINFO, texinfo, numtexinfo*sizeof(texinfo_t));
510 AddLump (LUMP_FACES, dfaces, numfaces*sizeof(dface_t));
511 AddLump (LUMP_BRUSHES, dbrushes, numbrushes*sizeof(dbrush_t));
512 AddLump (LUMP_BRUSHSIDES, dbrushsides, numbrushsides*sizeof(dbrushside_t));
513 AddLump (LUMP_LEAFFACES, dleaffaces, numleaffaces*sizeof(dleaffaces[0]));
514 AddLump (LUMP_LEAFBRUSHES, dleafbrushes, numleafbrushes*sizeof(dleafbrushes[0]));
515 AddLump (LUMP_SURFEDGES, dsurfedges, numsurfedges*sizeof(dsurfedges[0]));
516 AddLump (LUMP_EDGES, dedges, numedges*sizeof(dedge_t));
517 AddLump (LUMP_MODELS, dmodels, nummodels*sizeof(dmodel_t));
518 AddLump (LUMP_AREAS, dareas, numareas*sizeof(darea_t));
519 AddLump (LUMP_AREAPORTALS, dareaportals, numareaportals*sizeof(dareaportal_t));
520
521 AddLump (LUMP_LIGHTING, dlightdata, lightdatasize);
522 AddLump (LUMP_VISIBILITY, dvisdata, visdatasize);
523 AddLump (LUMP_ENTITIES, dentdata, entdatasize);
524 AddLump (LUMP_POP, dpop, sizeof(dpop));
525
526 fseek (wadfile, 0, SEEK_SET);
527 SafeWrite (wadfile, header, sizeof(dheader_t));
528 fclose (wadfile);
529 }
530
531 //============================================================================
532
533 /*
534 =============
535 PrintBSPFileSizes
536
537 Dumps info about current file
538 =============
539 */
540 void PrintBSPFileSizes (void)
541 {
542 if (!num_entities)
543 ParseEntities ();
544
545 printf ("%5i models %7i\n"
546 ,nummodels, (int)(nummodels*sizeof(dmodel_t)));
547 printf ("%5i brushes %7i\n"
548 ,numbrushes, (int)(numbrushes*sizeof(dbrush_t)));
549 printf ("%5i brushsides %7i\n"
550 ,numbrushsides, (int)(numbrushsides*sizeof(dbrushside_t)));
551 printf ("%5i planes %7i\n"
552 ,numplanes, (int)(numplanes*sizeof(dplane_t)));
553 printf ("%5i texinfo %7i\n"
554 ,numtexinfo, (int)(numtexinfo*sizeof(texinfo_t)));
555 printf ("%5i entdata %7i\n", num_entities, entdatasize);
556
557 printf ("\n");
558
559 printf ("%5i vertexes %7i\n"
560 ,numvertexes, (int)(numvertexes*sizeof(dvertex_t)));
561 printf ("%5i nodes %7i\n"
562 ,numnodes, (int)(numnodes*sizeof(dnode_t)));
563 printf ("%5i faces %7i\n"
564 ,numfaces, (int)(numfaces*sizeof(dface_t)));
565 printf ("%5i leafs %7i\n"
566 ,numleafs, (int)(numleafs*sizeof(dleaf_t)));
567 printf ("%5i leaffaces %7i\n"
568 ,numleaffaces, (int)(numleaffaces*sizeof(dleaffaces[0])));
569 printf ("%5i leafbrushes %7i\n"
570 ,numleafbrushes, (int)(numleafbrushes*sizeof(dleafbrushes[0])));
571 printf ("%5i surfedges %7i\n"
572 ,numsurfedges, (int)(numsurfedges*sizeof(dsurfedges[0])));
573 printf ("%5i edges %7i\n"
574 ,numedges, (int)(numedges*sizeof(dedge_t)));
575 printf (" lightdata %7i\n", lightdatasize);
576 printf (" visdata %7i\n", visdatasize);
577 }
578
579
580 //============================================
581
582 int num_entities;
583 entity_t entities[MAX_MAP_ENTITIES];
584
585 void StripTrailing (char *e)
586 {
587 char *s;
588
589 s = e + strlen(e)-1;
590 while (s >= e && *s <= 32)
591 {
592 *s = 0;
593 s--;
594 }
595 }
596
597 /*
598 =================
599 ParseEpair
600 =================
601 */
602 epair_t *ParseEpair (void)
603 {
604 epair_t *e;
605
606 e = malloc (sizeof(epair_t));
607 memset (e, 0, sizeof(epair_t));
608
609 if (strlen(token) >= MAX_KEY-1)
610 Error ("ParseEpar: token too long");
611 e->key = copystring(token);
612 GetToken (false);
613 if (strlen(token) >= MAX_VALUE-1)
614 Error ("ParseEpar: token too long");
615 e->value = copystring(token);
616
617 // strip trailing spaces
618 StripTrailing (e->key);
619 StripTrailing (e->value);
620
621 return e;
622 }
623
624
625 /*
626 ================
627 ParseEntity
628 ================
629 */
630 qboolean ParseEntity (void)
631 {
632 epair_t *e;
633 entity_t *mapent;
634
635 if (!GetToken (true))
636 return false;
637
638 if (strcmp (token, "{") )
639 Error ("ParseEntity: { not found");
640
641 if (num_entities == MAX_MAP_ENTITIES)
642 Error ("num_entities == MAX_MAP_ENTITIES");
643
644 mapent = &entities[num_entities];
645 num_entities++;
646
647 do
648 {
649 if (!GetToken (true))
650 Error ("ParseEntity: EOF without closing brace");
651 if (!strcmp (token, "}") )
652 break;
653 e = ParseEpair ();
654 e->next = mapent->epairs;
655 mapent->epairs = e;
656 } while (1);
657
658 return true;
659 }
660
661 /*
662 ================
663 ParseEntities
664
665 Parses the dentdata string into entities
666 ================
667 */
668 void ParseEntities (void)
669 {
670 num_entities = 0;
671 ParseFromMemory (dentdata, entdatasize);
672
673 while (ParseEntity ())
674 {
675 }
676 }
677
678
679 /*
680 ================
681 UnparseEntities
682
683 Generates the dentdata string from all the entities
684 ================
685 */
686 void UnparseEntities (void)
687 {
688 char *buf, *end;
689 epair_t *ep;
690 char line[2048];
691 int i;
692 char key[1024], value[1024];
693
694 buf = dentdata;
695 end = buf;
696 *end = 0;
697
698 for (i=0 ; i<num_entities ; i++)
699 {
700 ep = entities[i].epairs;
701 if (!ep)
702 continue; // ent got removed
703
704 strcat (end,"{\n");
705 end += 2;
706
707 for (ep = entities[i].epairs ; ep ; ep=ep->next)
708 {
709 strcpy (key, ep->key);
710 StripTrailing (key);
711 strcpy (value, ep->value);
712 StripTrailing (value);
713
714 sprintf (line, "\"%s\" \"%s\"\n", key, value);
715 strcat (end, line);
716 end += strlen(line);
717 }
718 strcat (end,"}\n");
719 end += 2;
720
721 if (end > buf + MAX_MAP_ENTSTRING)
722 Error ("Entity text too long");
723 }
724 entdatasize = end - buf + 1;
725 }
726
727 void PrintEntity (entity_t *ent)
728 {
729 epair_t *ep;
730
731 printf ("------- entity %p -------\n", ent);
732 for (ep=ent->epairs ; ep ; ep=ep->next)
733 {
734 printf ("%s = %s\n", ep->key, ep->value);
735 }
736
737 }
738
739 void SetKeyValue (entity_t *ent, char *key, char *value)
740 {
741 epair_t *ep;
742
743 for (ep=ent->epairs ; ep ; ep=ep->next)
744 if (!strcmp (ep->key, key) )
745 {
746 free (ep->value);
747 ep->value = copystring(value);
748 return;
749 }
750 ep = malloc (sizeof(*ep));
751 ep->next = ent->epairs;
752 ent->epairs = ep;
753 ep->key = copystring(key);
754 ep->value = copystring(value);
755 }
756
757 char *ValueForKey (entity_t *ent, char *key)
758 {
759 epair_t *ep;
760
761 for (ep=ent->epairs ; ep ; ep=ep->next)
762 if (!strcmp (ep->key, key) )
763 return ep->value;
764 return "";
765 }
766
767 vec_t FloatForKey (entity_t *ent, char *key)
768 {
769 char *k;
770
771 k = ValueForKey (ent, key);
772 return atof(k);
773 }
774
775 void GetVectorForKey (entity_t *ent, char *key, vec3_t vec)
776 {
777 char *k;
778 double v1, v2, v3;
779
780 k = ValueForKey (ent, key);
781 // scanf into doubles, then assign, so it is vec_t size independent
782 v1 = v2 = v3 = 0;
783 sscanf (k, "%lf %lf %lf", &v1, &v2, &v3);
784 vec[0] = v1;
785 vec[1] = v2;
786 vec[2] = v3;
787 }
788
789
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