1 /*
2 Copyright (C) 1999-2006 Id Software, Inc. and contributors.
3 For a list of contributors, see the accompanying CONTRIBUTORS file.
4
5 This file is part of GtkRadiant.
6
7 GtkRadiant is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 GtkRadiant is distributed in the hope that it will be useful,
13 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 GtkRadiant; 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 "inout.h"
26 #include "bspfile.h"
27 #include "scriplib.h"
28
29 void GetLeafNums (void);
30
31 //=============================================================================
32
33 int bsp_version = Q3_BSP_VERSION;
34
35 int nummodels;
36 dmodel_t dmodels[MAX_MAP_MODELS];
37
38 int numShaders;
39 dshader_t dshaders[MAX_MAP_SHADERS];
40
41 int entdatasize;
42 char dentdata[MAX_MAP_ENTSTRING];
43
44 int numleafs;
45 dleaf_t dleafs[MAX_MAP_LEAFS];
46
47 int numplanes;
48 dplane_t dplanes[MAX_MAP_PLANES];
49
50 int numnodes;
51 dnode_t dnodes[MAX_MAP_NODES];
52
53 int numleafsurfaces;
54 int dleafsurfaces[MAX_MAP_LEAFFACES];
55
56 int numleafbrushes;
57 int dleafbrushes[MAX_MAP_LEAFBRUSHES];
58
59 int numbrushes;
60 dbrush_t dbrushes[MAX_MAP_BRUSHES];
61
62 int numbrushsides;
63 dbrushside_t dbrushsides[MAX_MAP_BRUSHSIDES];
64
65 int numLightBytes;
66 byte *lightBytes;
67
68 int numGridPoints;
69 byte *gridData;
70
71 int numVisBytes;
72 byte visBytes[MAX_MAP_VISIBILITY];
73
74 int numDrawVerts = 0;
75 int numDrawVertsBuffer = 0;
76 drawVert_t *drawVerts = NULL;
77
78 int numDrawIndexes;
79 int drawIndexes[MAX_MAP_DRAW_INDEXES];
80
81 int numDrawSurfaces;
82 int numDrawSurfacesBuffer = 0;
83 dsurface_t *drawSurfaces = NULL;
84
85 int numFogs;
86 dfog_t dfogs[MAX_MAP_FOGS];
87
SetLightBytes(int n)88 void SetLightBytes(int n)
89 {
90 if(lightBytes != 0)
91 free(lightBytes);
92
93 numLightBytes = n;
94
95 if(n == 0)
96 return;
97
98 lightBytes = safe_malloc_info(numLightBytes, "SetLightBytes");
99
100 memset(lightBytes, 0, numLightBytes);
101 }
102
SetGridPoints(int n)103 void SetGridPoints(int n)
104 {
105 if(gridData != 0)
106 free(gridData);
107
108 numGridPoints = n;
109
110 if(n == 0)
111 return;
112
113 gridData = safe_malloc_info(numGridPoints * 8, "SetGridPoints");
114
115 memset(gridData, 0, numGridPoints * 8);
116 }
117
IncDrawVerts()118 void IncDrawVerts()
119 {
120 numDrawVerts++;
121
122 if(drawVerts == 0)
123 {
124 numDrawVertsBuffer = MAX_MAP_DRAW_VERTS / 37;
125
126 drawVerts = safe_malloc_info(sizeof(drawVert_t) * numDrawVertsBuffer, "IncDrawVerts");
127
128 }
129 else if(numDrawVerts > numDrawVertsBuffer)
130 {
131 numDrawVertsBuffer *= 3; // multiply by 1.5
132 numDrawVertsBuffer /= 2;
133
134 if(numDrawVertsBuffer > MAX_MAP_DRAW_VERTS)
135 numDrawVertsBuffer = MAX_MAP_DRAW_VERTS;
136
137 drawVerts = realloc(drawVerts, sizeof(drawVert_t) * numDrawVertsBuffer);
138
139 if(!drawVerts)
140 Error( "realloc() failed (IncDrawVerts)");
141 }
142
143 memset(drawVerts + (numDrawVerts - 1), 0, sizeof(drawVert_t));
144 }
145
SetDrawVerts(int n)146 void SetDrawVerts(int n)
147 {
148 if(drawVerts != 0)
149 free(drawVerts);
150
151 numDrawVerts = n;
152 numDrawVertsBuffer = numDrawVerts;
153
154 drawVerts = safe_malloc_info(sizeof(drawVert_t) * numDrawVertsBuffer, "IncDrawVerts");
155
156 memset(drawVerts, 0, n * sizeof(drawVert_t));
157 }
158
SetDrawSurfacesBuffer()159 void SetDrawSurfacesBuffer()
160 {
161 if(drawSurfaces != 0)
162 free(drawSurfaces);
163
164 numDrawSurfacesBuffer = MAX_MAP_DRAW_SURFS;
165
166 drawSurfaces = safe_malloc_info(sizeof(dsurface_t) * numDrawSurfacesBuffer, "IncDrawSurfaces");
167
168 memset(drawSurfaces, 0, MAX_MAP_DRAW_SURFS * sizeof(drawVert_t));
169 }
170
SetDrawSurfaces(int n)171 void SetDrawSurfaces(int n)
172 {
173 if(drawSurfaces != 0)
174 free(drawSurfaces);
175
176 numDrawSurfaces = n;
177 numDrawSurfacesBuffer = numDrawSurfaces;
178
179 drawSurfaces = safe_malloc_info(sizeof(dsurface_t) * numDrawSurfacesBuffer, "IncDrawSurfaces");
180
181 memset(drawSurfaces, 0, n * sizeof(drawVert_t));
182 }
183
BspFilesCleanup()184 void BspFilesCleanup()
185 {
186 if(drawVerts != 0)
187 free(drawVerts);
188 if(drawSurfaces != 0)
189 free(drawSurfaces);
190 if(lightBytes != 0)
191 free(lightBytes);
192 if(gridData != 0)
193 free(gridData);
194 }
195
196 //=============================================================================
197
198 /*
199 =============
200 SwapBlock
201
202 If all values are 32 bits, this can be used to swap everything
203 =============
204 */
SwapBlock(int * block,int sizeOfBlock)205 void SwapBlock( int *block, int sizeOfBlock ) {
206 int i;
207
208 sizeOfBlock >>= 2;
209 for ( i = 0 ; i < sizeOfBlock ; i++ ) {
210 block[i] = LittleLong( block[i] );
211 }
212 }
213
214 /*
215 =============
216 SwapBSPFile
217
218 Byte swaps all data in a bsp file.
219 =============
220 */
SwapBSPFile(void)221 void SwapBSPFile( void ) {
222 int i;
223
224 // models
225 SwapBlock( (int *)dmodels, nummodels * sizeof( dmodels[0] ) );
226
227 // shaders (don't swap the name)
228 for ( i = 0 ; i < numShaders ; i++ ) {
229 dshaders[i].contentFlags = LittleLong( dshaders[i].contentFlags );
230 dshaders[i].surfaceFlags = LittleLong( dshaders[i].surfaceFlags );
231 }
232
233 // planes
234 SwapBlock( (int *)dplanes, numplanes * sizeof( dplanes[0] ) );
235
236 // nodes
237 SwapBlock( (int *)dnodes, numnodes * sizeof( dnodes[0] ) );
238
239 // leafs
240 SwapBlock( (int *)dleafs, numleafs * sizeof( dleafs[0] ) );
241
242 // leaffaces
243 SwapBlock( (int *)dleafsurfaces, numleafsurfaces * sizeof( dleafsurfaces[0] ) );
244
245 // leafbrushes
246 SwapBlock( (int *)dleafbrushes, numleafbrushes * sizeof( dleafbrushes[0] ) );
247
248 // brushes
249 SwapBlock( (int *)dbrushes, numbrushes * sizeof( dbrushes[0] ) );
250
251 // brushsides
252 SwapBlock( (int *)dbrushsides, numbrushsides * sizeof( dbrushsides[0] ) );
253
254 // vis
255 ((int *)&visBytes)[0] = LittleLong( ((int *)&visBytes)[0] );
256 ((int *)&visBytes)[1] = LittleLong( ((int *)&visBytes)[1] );
257
258 // drawverts (don't swap colors )
259 for ( i = 0 ; i < numDrawVerts ; i++ ) {
260 drawVerts[i].lightmap[0] = LittleFloat( drawVerts[i].lightmap[0] );
261 drawVerts[i].lightmap[1] = LittleFloat( drawVerts[i].lightmap[1] );
262 drawVerts[i].st[0] = LittleFloat( drawVerts[i].st[0] );
263 drawVerts[i].st[1] = LittleFloat( drawVerts[i].st[1] );
264 drawVerts[i].xyz[0] = LittleFloat( drawVerts[i].xyz[0] );
265 drawVerts[i].xyz[1] = LittleFloat( drawVerts[i].xyz[1] );
266 drawVerts[i].xyz[2] = LittleFloat( drawVerts[i].xyz[2] );
267 drawVerts[i].normal[0] = LittleFloat( drawVerts[i].normal[0] );
268 drawVerts[i].normal[1] = LittleFloat( drawVerts[i].normal[1] );
269 drawVerts[i].normal[2] = LittleFloat( drawVerts[i].normal[2] );
270 }
271
272 // drawindexes
273 SwapBlock( (int *)drawIndexes, numDrawIndexes * sizeof( drawIndexes[0] ) );
274
275 // drawsurfs
276 SwapBlock( (int *)drawSurfaces, numDrawSurfaces * sizeof( drawSurfaces[0] ) );
277
278 // fogs
279 for ( i = 0 ; i < numFogs ; i++ ) {
280 dfogs[i].brushNum = LittleLong( dfogs[i].brushNum );
281 dfogs[i].visibleSide = LittleLong( dfogs[i].visibleSide );
282 }
283 }
284
285
286
287 /*
288 =============
289 GetLumpElements
290 =============
291 */
GetLumpElements(dheader_t * header,int lump,int size)292 int GetLumpElements( dheader_t *header, int lump, int size ) {
293 int length, ofs;
294
295 length = header->lumps[lump].filelen;
296 ofs = header->lumps[lump].fileofs;
297
298 if ( length % size ) {
299 Error ("LoadBSPFile: odd lump size");
300 }
301
302 return length / size;
303 }
304
305 /*
306 =============
307 CopyLump
308 =============
309 */
CopyLump(dheader_t * header,int lump,void * dest,int size)310 int CopyLump( dheader_t *header, int lump, void *dest, int size ) {
311 int length, ofs;
312
313 length = header->lumps[lump].filelen;
314 ofs = header->lumps[lump].fileofs;
315
316 if(length == 0)
317 return 0;
318
319 if ( length % size ) {
320 Error ("LoadBSPFile: odd lump size");
321 }
322
323 memcpy( dest, (byte *)header + ofs, length );
324
325 return length / size;
326 }
327
328 /*
329 =============
330 LoadBSPFile
331 =============
332 */
LoadBSPFile(const char * filename)333 void LoadBSPFile( const char *filename ) {
334 dheader_t *header;
335
336 // load the file header
337 LoadFile (filename, (void **)&header);
338
339 // swap the header
340 SwapBlock( (int *)header, sizeof(*header) );
341
342 if ( header->ident != BSP_IDENT ) {
343 Error( "%s is not a IBSP file", filename );
344 }
345 if ( header->version != bsp_version ) {
346 Error( "%s is version %i, not %i", filename, header->version, bsp_version );
347 }
348
349 numShaders = CopyLump( header, LUMP_SHADERS, dshaders, sizeof(dshader_t) );
350 nummodels = CopyLump( header, LUMP_MODELS, dmodels, sizeof(dmodel_t) );
351 numplanes = CopyLump( header, LUMP_PLANES, dplanes, sizeof(dplane_t) );
352 numleafs = CopyLump( header, LUMP_LEAFS, dleafs, sizeof(dleaf_t) );
353 numnodes = CopyLump( header, LUMP_NODES, dnodes, sizeof(dnode_t) );
354 numleafsurfaces = CopyLump( header, LUMP_LEAFSURFACES, dleafsurfaces, sizeof(dleafsurfaces[0]) );
355 numleafbrushes = CopyLump( header, LUMP_LEAFBRUSHES, dleafbrushes, sizeof(dleafbrushes[0]) );
356 numbrushes = CopyLump( header, LUMP_BRUSHES, dbrushes, sizeof(dbrush_t) );
357 numbrushsides = CopyLump( header, LUMP_BRUSHSIDES, dbrushsides, sizeof(dbrushside_t) );
358 numDrawVerts = GetLumpElements( header, LUMP_DRAWVERTS, sizeof(drawVert_t) );
359 SetDrawVerts(numDrawVerts);
360 CopyLump( header, LUMP_DRAWVERTS, drawVerts, sizeof(drawVert_t) );
361 numDrawSurfaces = GetLumpElements( header, LUMP_SURFACES, sizeof(dsurface_t) );
362 SetDrawSurfaces(numDrawSurfaces);
363 numDrawSurfaces = CopyLump( header, LUMP_SURFACES, drawSurfaces, sizeof(dsurface_t) );
364 numFogs = CopyLump( header, LUMP_FOGS, dfogs, sizeof(dfog_t) );
365 numDrawIndexes = CopyLump( header, LUMP_DRAWINDEXES, drawIndexes, sizeof(drawIndexes[0]) );
366
367 numVisBytes = CopyLump( header, LUMP_VISIBILITY, visBytes, 1 );
368 numLightBytes = GetLumpElements( header, LUMP_LIGHTMAPS, 1 );
369 SetLightBytes(numLightBytes);
370 CopyLump( header, LUMP_LIGHTMAPS, lightBytes, 1 );
371 entdatasize = CopyLump( header, LUMP_ENTITIES, dentdata, 1);
372
373 numGridPoints = GetLumpElements( header, LUMP_LIGHTGRID, 8 );
374 SetGridPoints(numGridPoints);
375 CopyLump( header, LUMP_LIGHTGRID, gridData, 8 );
376
377
378 free( header ); // everything has been copied out
379
380 // swap everything
381 SwapBSPFile();
382 }
383
384
385 //============================================================================
386
387 /*
388 =============
389 AddLump
390 =============
391 */
AddLump(FILE * bspfile,dheader_t * header,int lumpnum,const void * data,int len)392 void AddLump( FILE *bspfile, dheader_t *header, int lumpnum, const void *data, int len ) {
393 lump_t *lump;
394
395 lump = &header->lumps[lumpnum];
396
397 lump->fileofs = LittleLong( ftell(bspfile) );
398 lump->filelen = LittleLong( len );
399 SafeWrite( bspfile, data, (len+3)&~3 );
400 }
401
402 /*
403 =============
404 WriteBSPFile
405
406 Swaps the bsp file in place, so it should not be referenced again
407 =============
408 */
WriteBSPFile(const char * filename)409 void WriteBSPFile( const char *filename ) {
410 dheader_t outheader, *header;
411 FILE *bspfile;
412
413 header = &outheader;
414 memset( header, 0, sizeof(dheader_t) );
415
416 SwapBSPFile();
417
418 header->ident = LittleLong( BSP_IDENT );
419 header->version = LittleLong( bsp_version );
420
421 bspfile = SafeOpenWrite( filename );
422 SafeWrite( bspfile, header, sizeof(dheader_t) ); // overwritten later
423
424 AddLump( bspfile, header, LUMP_SHADERS, dshaders, numShaders*sizeof(dshader_t) );
425 AddLump( bspfile, header, LUMP_PLANES, dplanes, numplanes*sizeof(dplane_t) );
426 AddLump( bspfile, header, LUMP_LEAFS, dleafs, numleafs*sizeof(dleaf_t) );
427 AddLump( bspfile, header, LUMP_NODES, dnodes, numnodes*sizeof(dnode_t) );
428 AddLump( bspfile, header, LUMP_BRUSHES, dbrushes, numbrushes*sizeof(dbrush_t) );
429 AddLump( bspfile, header, LUMP_BRUSHSIDES, dbrushsides, numbrushsides*sizeof(dbrushside_t) );
430 AddLump( bspfile, header, LUMP_LEAFSURFACES, dleafsurfaces, numleafsurfaces*sizeof(dleafsurfaces[0]) );
431 AddLump( bspfile, header, LUMP_LEAFBRUSHES, dleafbrushes, numleafbrushes*sizeof(dleafbrushes[0]) );
432 AddLump( bspfile, header, LUMP_MODELS, dmodels, nummodels*sizeof(dmodel_t) );
433 AddLump( bspfile, header, LUMP_DRAWVERTS, drawVerts, numDrawVerts*sizeof(drawVert_t) );
434 AddLump( bspfile, header, LUMP_SURFACES, drawSurfaces, numDrawSurfaces*sizeof(dsurface_t) );
435 AddLump( bspfile, header, LUMP_VISIBILITY, visBytes, numVisBytes );
436 AddLump( bspfile, header, LUMP_LIGHTMAPS, lightBytes, numLightBytes );
437 AddLump( bspfile, header, LUMP_LIGHTGRID, gridData, 8 * numGridPoints );
438 AddLump( bspfile, header, LUMP_ENTITIES, dentdata, entdatasize );
439 AddLump( bspfile, header, LUMP_FOGS, dfogs, numFogs * sizeof(dfog_t) );
440 AddLump( bspfile, header, LUMP_DRAWINDEXES, drawIndexes, numDrawIndexes * sizeof(drawIndexes[0]) );
441
442 fseek (bspfile, 0, SEEK_SET);
443 SafeWrite (bspfile, header, sizeof(dheader_t));
444 fclose (bspfile);
445 }
446
447 //============================================================================
448
449 /*
450 =============
451 PrintBSPFileSizes
452
453 Dumps info about current file
454 =============
455 */
PrintBSPFileSizes(void)456 void PrintBSPFileSizes( void ) {
457 if ( !num_entities ) {
458 ParseEntities();
459 }
460
461 Sys_Printf ("%6i models %7i\n"
462 ,nummodels, (int)(nummodels*sizeof(dmodel_t)));
463 Sys_Printf ("%6i shaders %7i\n"
464 ,numShaders, (int)(numShaders*sizeof(dshader_t)));
465 Sys_Printf ("%6i brushes %7i\n"
466 ,numbrushes, (int)(numbrushes*sizeof(dbrush_t)));
467 Sys_Printf ("%6i brushsides %7i\n"
468 ,numbrushsides, (int)(numbrushsides*sizeof(dbrushside_t)));
469 Sys_Printf ("%6i fogs %7i\n"
470 ,numFogs, (int)(numFogs*sizeof(dfog_t)));
471 Sys_Printf ("%6i planes %7i\n"
472 ,numplanes, (int)(numplanes*sizeof(dplane_t)));
473 Sys_Printf ("%6i entdata %7i\n", num_entities, entdatasize);
474
475 Sys_Printf ("\n");
476
477 Sys_Printf ("%6i nodes %7i\n"
478 ,numnodes, (int)(numnodes*sizeof(dnode_t)));
479 Sys_Printf ("%6i leafs %7i\n"
480 ,numleafs, (int)(numleafs*sizeof(dleaf_t)));
481 Sys_Printf ("%6i leafsurfaces %7i\n"
482 ,numleafsurfaces, (int)(numleafsurfaces*sizeof(dleafsurfaces[0])));
483 Sys_Printf ("%6i leafbrushes %7i\n"
484 ,numleafbrushes, (int)(numleafbrushes*sizeof(dleafbrushes[0])));
485 Sys_Printf ("%6i drawverts %7i\n"
486 ,numDrawVerts, (int)(numDrawVerts*sizeof(drawVerts[0])));
487 Sys_Printf ("%6i drawindexes %7i\n"
488 ,numDrawIndexes, (int)(numDrawIndexes*sizeof(drawIndexes[0])));
489 Sys_Printf ("%6i drawsurfaces %7i\n"
490 ,numDrawSurfaces, (int)(numDrawSurfaces*sizeof(drawSurfaces[0])));
491
492 Sys_Printf ("%6i lightmaps %7i\n"
493 ,numLightBytes / (LIGHTMAP_WIDTH*LIGHTMAP_HEIGHT*3), numLightBytes );
494 Sys_Printf (" visibility %7i\n"
495 , numVisBytes );
496 }
497
498
499 //============================================
500
501 int num_entities;
502 entity_t entities[MAX_MAP_ENTITIES];
503
StripTrailing(char * e)504 void StripTrailing( char *e ) {
505 char *s;
506
507 s = e + strlen(e)-1;
508 while (s >= e && *s <= 32)
509 {
510 *s = 0;
511 s--;
512 }
513 }
514
515 /*
516 =================
517 ParseEpair
518 =================
519 */
ParseEpair(void)520 epair_t *ParseEpair( void ) {
521 epair_t *e;
522
523 e = safe_malloc( sizeof(epair_t) );
524 memset( e, 0, sizeof(epair_t) );
525
526 if ( strlen(token) >= MAX_KEY-1 ) {
527 Error ("ParseEpar: token too long");
528 }
529 e->key = copystring( token );
530 GetToken( qfalse );
531 if ( strlen(token) >= MAX_VALUE-1 ) {
532 Error ("ParseEpar: token too long");
533 }
534 e->value = copystring( token );
535
536 // strip trailing spaces that sometimes get accidentally
537 // added in the editor
538 StripTrailing( e->key );
539 StripTrailing( e->value );
540
541 return e;
542 }
543
544
545 /*
546 ================
547 ParseEntity
548 ================
549 */
ParseEntity(void)550 qboolean ParseEntity( void ) {
551 epair_t *e;
552 entity_t *mapent;
553
554 if ( !GetToken (qtrue) ) {
555 return qfalse;
556 }
557
558 if ( strcmp (token, "{") ) {
559 Error ("ParseEntity: { not found");
560 }
561 if ( num_entities == MAX_MAP_ENTITIES ) {
562 Error ("num_entities == MAX_MAP_ENTITIES");
563 }
564 mapent = &entities[num_entities];
565 num_entities++;
566
567 do {
568 if ( !GetToken (qtrue) ) {
569 Error ("ParseEntity: EOF without closing brace");
570 }
571 if ( !strcmp (token, "}") ) {
572 break;
573 }
574 e = ParseEpair ();
575 e->next = mapent->epairs;
576 mapent->epairs = e;
577 } while (1);
578
579 return qtrue;
580 }
581
582 /*
583 ================
584 ParseEntities
585
586 Parses the dentdata string into entities
587 ================
588 */
ParseEntities(void)589 void ParseEntities( void ) {
590 num_entities = 0;
591 ParseFromMemory( dentdata, entdatasize );
592
593 while ( ParseEntity () ) {
594 }
595 }
596
597
598 /*
599 ================
600 UnparseEntities
601
602 Generates the dentdata string from all the entities
603 This allows the utilities to add or remove key/value pairs
604 to the data created by the map editor.
605 ================
606 */
UnparseEntities(void)607 void UnparseEntities( void ) {
608 char *buf, *end;
609 epair_t *ep;
610 char line[2048];
611 int i;
612 char key[1024], value[1024];
613
614 buf = dentdata;
615 end = buf;
616 *end = 0;
617
618 for (i=0 ; i<num_entities ; i++) {
619 ep = entities[i].epairs;
620 if ( !ep ) {
621 continue; // ent got removed
622 }
623
624 strcat (end,"{\n");
625 end += 2;
626
627 for ( ep = entities[i].epairs ; ep ; ep=ep->next ) {
628 strcpy (key, ep->key);
629 StripTrailing (key);
630 strcpy (value, ep->value);
631 StripTrailing (value);
632
633 sprintf (line, "\"%s\" \"%s\"\n", key, value);
634 strcat (end, line);
635 end += strlen(line);
636 }
637 strcat (end,"}\n");
638 end += 2;
639
640 if (end > buf + MAX_MAP_ENTSTRING) {
641 Error ("Entity text too long");
642 }
643 }
644 entdatasize = end - buf + 1;
645 }
646
PrintEntity(const entity_t * ent)647 void PrintEntity( const entity_t *ent ) {
648 epair_t *ep;
649
650 Sys_Printf ("------- entity %p -------\n", ent);
651 for (ep=ent->epairs ; ep ; ep=ep->next) {
652 Sys_Printf( "%s = %s\n", ep->key, ep->value );
653 }
654
655 }
656
SetKeyValue(entity_t * ent,const char * key,const char * value)657 void SetKeyValue( entity_t *ent, const char *key, const char *value ) {
658 epair_t *ep;
659
660 for ( ep=ent->epairs ; ep ; ep=ep->next ) {
661 if ( !strcmp (ep->key, key) ) {
662 free (ep->value);
663 ep->value = copystring(value);
664 return;
665 }
666 }
667 ep = safe_malloc (sizeof(*ep));
668 ep->next = ent->epairs;
669 ent->epairs = ep;
670 ep->key = copystring(key);
671 ep->value = copystring(value);
672 }
673
ValueForKey(const entity_t * ent,const char * key)674 const char *ValueForKey( const entity_t *ent, const char *key ) {
675 epair_t *ep;
676
677 for (ep=ent->epairs ; ep ; ep=ep->next) {
678 if (!strcmp (ep->key, key) ) {
679 return ep->value;
680 }
681 }
682 return "";
683 }
684
FloatForKey(const entity_t * ent,const char * key)685 vec_t FloatForKey( const entity_t *ent, const char *key ) {
686 const char *k;
687
688 k = ValueForKey( ent, key );
689 return atof(k);
690 }
691
GetVectorForKey(const entity_t * ent,const char * key,vec3_t vec)692 void GetVectorForKey( const entity_t *ent, const char *key, vec3_t vec ) {
693 const char *k;
694 double v1, v2, v3;
695
696 k = ValueForKey (ent, key);
697
698 // scanf into doubles, then assign, so it is vec_t size independent
699 v1 = v2 = v3 = 0;
700 sscanf (k, "%lf %lf %lf", &v1, &v2, &v3);
701 vec[0] = v1;
702 vec[1] = v2;
703 vec[2] = v3;
704 }
705
706
707