-
Notifications
You must be signed in to change notification settings - Fork 76
/
be_aas_cluster.c
1602 lines (1547 loc) · 52.1 KB
/
be_aas_cluster.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
===========================================================================
Return to Castle Wolfenstein single player GPL Source Code
Copyright (C) 1999-2010 id Software LLC, a ZeniMax Media company.
This file is part of the Return to Castle Wolfenstein single player GPL Source Code (RTCW SP Source Code).
RTCW SP Source Code is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
RTCW SP Source Code is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with RTCW SP Source Code. If not, see <http://www.gnu.org/licenses/>.
In addition, the RTCW SP Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the RTCW SP Source Code. If not, please request a copy in writing from id Software at the address below.
If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
===========================================================================
*/
/*****************************************************************************
* name: be_aas_cluster.c
*
* desc: area clustering
*
*
*****************************************************************************/
#include "../qcommon/q_shared.h"
#include "l_memory.h"
#include "l_script.h"
#include "l_precomp.h"
#include "l_struct.h"
#include "l_log.h"
#include "l_memory.h"
#include "l_libvar.h"
#include "aasfile.h"
#include "botlib.h"
#include "be_aas.h"
#include "be_aas_funcs.h"
#include "be_aas_def.h"
#include "be_aas_cluster.h"
extern botlib_import_t botimport;
#define AAS_MAX_PORTALS 65536
#define AAS_MAX_PORTALINDEXSIZE 65536
#define AAS_MAX_CLUSTERS 65536
//
#define MAX_PORTALAREAS 1024
// do not flood through area faces, only use reachabilities
int nofaceflood = qtrue;
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
void AAS_RemoveClusterAreas( void ) {
int i;
for ( i = 1; i < ( *aasworld ).numareas; i++ )
{
( *aasworld ).areasettings[i].cluster = 0;
} //end for
} //end of the function AAS_RemoveClusterAreas
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
void AAS_ClearCluster( int clusternum ) {
int i;
for ( i = 1; i < ( *aasworld ).numareas; i++ )
{
if ( ( *aasworld ).areasettings[i].cluster == clusternum ) {
( *aasworld ).areasettings[i].cluster = 0;
} //end if
} //end for
} //end of the function AAS_ClearCluster
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
void AAS_RemovePortalsClusterReference( int clusternum ) {
int portalnum;
for ( portalnum = 1; portalnum < ( *aasworld ).numportals; portalnum++ )
{
if ( ( *aasworld ).portals[portalnum].frontcluster == clusternum ) {
( *aasworld ).portals[portalnum].frontcluster = 0;
} //end if
if ( ( *aasworld ).portals[portalnum].backcluster == clusternum ) {
( *aasworld ).portals[portalnum].backcluster = 0;
} //end if
} //end for
} //end of the function AAS_RemovePortalsClusterReference
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
int AAS_UpdatePortal( int areanum, int clusternum ) {
int portalnum;
aas_portal_t *portal;
aas_cluster_t *cluster;
//find the portal of the area
for ( portalnum = 1; portalnum < ( *aasworld ).numportals; portalnum++ )
{
if ( ( *aasworld ).portals[portalnum].areanum == areanum ) {
break;
}
} //end for
//
if ( portalnum == ( *aasworld ).numportals ) {
AAS_Error( "no portal of area %d\n", areanum );
return qtrue;
} //end if
//
portal = &( *aasworld ).portals[portalnum];
//if the portal is already fully updated
if ( portal->frontcluster == clusternum ) {
return qtrue;
}
if ( portal->backcluster == clusternum ) {
return qtrue;
}
//if the portal has no front cluster yet
if ( !portal->frontcluster ) {
portal->frontcluster = clusternum;
} //end if
//if the portal has no back cluster yet
else if ( !portal->backcluster ) {
portal->backcluster = clusternum;
} //end else if
else
{
Log_Write( "portal using area %d is separating more than two clusters\r\n", areanum );
//remove the cluster portal flag contents
( *aasworld ).areasettings[areanum].contents &= ~AREACONTENTS_CLUSTERPORTAL;
return qfalse;
} //end else
if ( ( *aasworld ).portalindexsize >= AAS_MAX_PORTALINDEXSIZE ) {
AAS_Error( "AAS_MAX_PORTALINDEXSIZE\n" );
return qtrue;
} //end if
//set the area cluster number to the negative portal number
( *aasworld ).areasettings[areanum].cluster = -portalnum;
//add the portal to the cluster using the portal index
cluster = &( *aasworld ).clusters[clusternum];
( *aasworld ).portalindex[cluster->firstportal + cluster->numportals] = portalnum;
( *aasworld ).portalindexsize++;
cluster->numportals++;
return qtrue;
} //end of the function AAS_UpdatePortal
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
int AAS_FloodClusterAreas_r( int areanum, int clusternum ) {
aas_area_t *area;
aas_face_t *face;
int facenum, i;
//
if ( areanum <= 0 || areanum >= ( *aasworld ).numareas ) {
AAS_Error( "AAS_FloodClusterAreas_r: areanum out of range\n" );
return qfalse;
} //end if
//if the area is already part of a cluster
if ( ( *aasworld ).areasettings[areanum].cluster > 0 ) {
if ( ( *aasworld ).areasettings[areanum].cluster == clusternum ) {
return qtrue;
}
//
//there's a reachability going from one cluster to another only in one direction
//
AAS_Error( "cluster %d touched cluster %d at area %d\n",
clusternum, ( *aasworld ).areasettings[areanum].cluster, areanum );
return qfalse;
} //end if
//don't add the cluster portal areas to the clusters
if ( ( *aasworld ).areasettings[areanum].contents & AREACONTENTS_CLUSTERPORTAL ) {
return AAS_UpdatePortal( areanum, clusternum );
} //end if
//set the area cluster number
( *aasworld ).areasettings[areanum].cluster = clusternum;
( *aasworld ).areasettings[areanum].clusterareanum =
( *aasworld ).clusters[clusternum].numareas;
//the cluster has an extra area
( *aasworld ).clusters[clusternum].numareas++;
area = &( *aasworld ).areas[areanum];
//use area faces to flood into adjacent areas
if ( !nofaceflood ) {
for ( i = 0; i < area->numfaces; i++ )
{
facenum = abs( ( *aasworld ).faceindex[area->firstface + i] );
face = &( *aasworld ).faces[facenum];
if ( face->frontarea == areanum ) {
if ( face->backarea ) {
if ( !AAS_FloodClusterAreas_r( face->backarea, clusternum ) ) {
return qfalse;
}
}
} //end if
else
{
if ( face->frontarea ) {
if ( !AAS_FloodClusterAreas_r( face->frontarea, clusternum ) ) {
return qfalse;
}
}
} //end else
} //end for
}
//use the reachabilities to flood into other areas
for ( i = 0; i < ( *aasworld ).areasettings[areanum].numreachableareas; i++ )
{
if ( !( *aasworld ).reachability[
( *aasworld ).areasettings[areanum].firstreachablearea + i].areanum ) {
continue;
} //end if
if ( !AAS_FloodClusterAreas_r( ( *aasworld ).reachability[
( *aasworld ).areasettings[areanum].firstreachablearea + i].areanum, clusternum ) ) {
return qfalse;
}
} //end for
return qtrue;
} //end of the function AAS_FloodClusterAreas_r
//===========================================================================
// try to flood from all areas without cluster into areas with a cluster set
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
int AAS_FloodClusterAreasUsingReachabilities( int clusternum ) {
int i, j, areanum;
for ( i = 1; i < ( *aasworld ).numareas; i++ )
{
//if this area already has a cluster set
if ( ( *aasworld ).areasettings[i].cluster ) {
continue;
}
//if this area is a cluster portal
if ( ( *aasworld ).areasettings[i].contents & AREACONTENTS_CLUSTERPORTAL ) {
continue;
}
//loop over the reachable areas from this area
for ( j = 0; j < ( *aasworld ).areasettings[i].numreachableareas; j++ )
{
//the reachable area
areanum = ( *aasworld ).reachability[( *aasworld ).areasettings[i].firstreachablearea + j].areanum;
//if this area is a cluster portal
if ( ( *aasworld ).areasettings[areanum].contents & AREACONTENTS_CLUSTERPORTAL ) {
continue;
}
//if this area has a cluster set
if ( ( *aasworld ).areasettings[areanum].cluster ) {
if ( !AAS_FloodClusterAreas_r( i, clusternum ) ) {
return qfalse;
}
i = 0;
break;
} //end if
} //end for
} //end for
return qtrue;
} //end of the function AAS_FloodClusterAreasUsingReachabilities
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
void AAS_NumberClusterPortals( int clusternum ) {
int i, portalnum;
aas_cluster_t *cluster;
aas_portal_t *portal;
cluster = &( *aasworld ).clusters[clusternum];
for ( i = 0; i < cluster->numportals; i++ )
{
portalnum = ( *aasworld ).portalindex[cluster->firstportal + i];
portal = &( *aasworld ).portals[portalnum];
if ( portal->frontcluster == clusternum ) {
portal->clusterareanum[0] = cluster->numareas++;
} //end if
else
{
portal->clusterareanum[1] = cluster->numareas++;
} //end else
} //end for
} //end of the function AAS_NumberClusterPortals
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
void AAS_NumberClusterAreas( int clusternum ) {
int i, portalnum;
aas_cluster_t *cluster;
aas_portal_t *portal;
( *aasworld ).clusters[clusternum].numareas = 0;
( *aasworld ).clusters[clusternum].numreachabilityareas = 0;
//number all areas in this cluster WITH reachabilities
for ( i = 1; i < ( *aasworld ).numareas; i++ )
{
//
if ( ( *aasworld ).areasettings[i].cluster != clusternum ) {
continue;
}
//
if ( !AAS_AreaReachability( i ) ) {
continue;
}
//
( *aasworld ).areasettings[i].clusterareanum = ( *aasworld ).clusters[clusternum].numareas;
//the cluster has an extra area
( *aasworld ).clusters[clusternum].numareas++;
( *aasworld ).clusters[clusternum].numreachabilityareas++;
} //end for
//number all portals in this cluster WITH reachabilities
cluster = &( *aasworld ).clusters[clusternum];
for ( i = 0; i < cluster->numportals; i++ )
{
portalnum = ( *aasworld ).portalindex[cluster->firstportal + i];
portal = &( *aasworld ).portals[portalnum];
if ( !AAS_AreaReachability( portal->areanum ) ) {
continue;
}
if ( portal->frontcluster == clusternum ) {
portal->clusterareanum[0] = cluster->numareas++;
( *aasworld ).clusters[clusternum].numreachabilityareas++;
} //end if
else
{
portal->clusterareanum[1] = cluster->numareas++;
( *aasworld ).clusters[clusternum].numreachabilityareas++;
} //end else
} //end for
//number all areas in this cluster WITHOUT reachabilities
for ( i = 1; i < ( *aasworld ).numareas; i++ )
{
//
if ( ( *aasworld ).areasettings[i].cluster != clusternum ) {
continue;
}
//
if ( AAS_AreaReachability( i ) ) {
continue;
}
//
( *aasworld ).areasettings[i].clusterareanum = ( *aasworld ).clusters[clusternum].numareas;
//the cluster has an extra area
( *aasworld ).clusters[clusternum].numareas++;
} //end for
//number all portals in this cluster WITHOUT reachabilities
cluster = &( *aasworld ).clusters[clusternum];
for ( i = 0; i < cluster->numportals; i++ )
{
portalnum = ( *aasworld ).portalindex[cluster->firstportal + i];
portal = &( *aasworld ).portals[portalnum];
if ( AAS_AreaReachability( portal->areanum ) ) {
continue;
}
if ( portal->frontcluster == clusternum ) {
portal->clusterareanum[0] = cluster->numareas++;
} //end if
else
{
portal->clusterareanum[1] = cluster->numareas++;
} //end else
} //end for
} //end of the function AAS_NumberClusterAreas
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
int AAS_FindClusters( void ) {
int i;
aas_cluster_t *cluster;
AAS_RemoveClusterAreas();
//
for ( i = 1; i < ( *aasworld ).numareas; i++ )
{
//if the area is already part of a cluster
if ( ( *aasworld ).areasettings[i].cluster ) {
continue;
}
// if not flooding through faces only use areas that have reachabilities
if ( nofaceflood ) {
if ( !( *aasworld ).areasettings[i].numreachableareas ) {
continue;
}
} //end if
//if the area is a cluster portal
if ( ( *aasworld ).areasettings[i].contents & AREACONTENTS_CLUSTERPORTAL ) {
continue;
}
if ( ( *aasworld ).numclusters >= AAS_MAX_CLUSTERS ) {
AAS_Error( "AAS_MAX_CLUSTERS\n" );
return qfalse;
} //end if
cluster = &( *aasworld ).clusters[( *aasworld ).numclusters];
cluster->numareas = 0;
cluster->numreachabilityareas = 0;
cluster->firstportal = ( *aasworld ).portalindexsize;
cluster->numportals = 0;
//flood the areas in this cluster
if ( !AAS_FloodClusterAreas_r( i, ( *aasworld ).numclusters ) ) {
return qfalse;
}
if ( !AAS_FloodClusterAreasUsingReachabilities( ( *aasworld ).numclusters ) ) {
return qfalse;
}
//number the cluster areas
//AAS_NumberClusterPortals((*aasworld).numclusters);
AAS_NumberClusterAreas( ( *aasworld ).numclusters );
//Log_Write("cluster %d has %d areas\r\n", (*aasworld).numclusters, cluster->numareas);
( *aasworld ).numclusters++;
} //end for
return qtrue;
} //end of the function AAS_FindClusters
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
void AAS_CreatePortals( void ) {
int i;
aas_portal_t *portal;
for ( i = 1; i < ( *aasworld ).numareas; i++ )
{
//if the area is a cluster portal
if ( ( *aasworld ).areasettings[i].contents & AREACONTENTS_CLUSTERPORTAL ) {
if ( ( *aasworld ).numportals >= AAS_MAX_PORTALS ) {
AAS_Error( "AAS_MAX_PORTALS\n" );
return;
} //end if
portal = &( *aasworld ).portals[( *aasworld ).numportals];
portal->areanum = i;
portal->frontcluster = 0;
portal->backcluster = 0;
Log_Write( "portal %d: area %d\r\n", ( *aasworld ).numportals, portal->areanum );
( *aasworld ).numportals++;
} //end if
} //end for
} //end of the function AAS_CreatePortals
/*
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
int AAS_MapContainsTeleporters(void)
{
bsp_entity_t *entities, *ent;
char *classname;
entities = AAS_ParseBSPEntities();
for (ent = entities; ent; ent = ent->next)
{
classname = AAS_ValueForBSPEpairKey(ent, "classname");
if (classname && !strcmp(classname, "misc_teleporter"))
{
AAS_FreeBSPEntities(entities);
return qtrue;
} //end if
} //end for
return qfalse;
} //end of the function AAS_MapContainsTeleporters
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
int AAS_NonConvexFaces(aas_face_t *face1, aas_face_t *face2, int side1, int side2)
{
int i, j, edgenum;
aas_plane_t *plane1, *plane2;
aas_edge_t *edge;
plane1 = &(*aasworld).planes[face1->planenum ^ side1];
plane2 = &(*aasworld).planes[face2->planenum ^ side2];
//check if one of the points of face1 is at the back of the plane of face2
for (i = 0; i < face1->numedges; i++)
{
edgenum = abs((*aasworld).edgeindex[face1->firstedge + i]);
edge = &(*aasworld).edges[edgenum];
for (j = 0; j < 2; j++)
{
if (DotProduct(plane2->normal, (*aasworld).vertexes[edge->v[j]]) -
plane2->dist < -0.01) return qtrue;
} //end for
} //end for
for (i = 0; i < face2->numedges; i++)
{
edgenum = abs((*aasworld).edgeindex[face2->firstedge + i]);
edge = &(*aasworld).edges[edgenum];
for (j = 0; j < 2; j++)
{
if (DotProduct(plane1->normal, (*aasworld).vertexes[edge->v[j]]) -
plane1->dist < -0.01) return qtrue;
} //end for
} //end for
return qfalse;
} //end of the function AAS_NonConvexFaces
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
qboolean AAS_CanMergeAreas(int *areanums, int numareas)
{
int i, j, s, face1num, face2num, side1, side2, fn1, fn2;
aas_face_t *face1, *face2;
aas_area_t *area1, *area2;
for (i = 0; i < numareas; i++)
{
area1 = &(*aasworld).areas[areanums[i]];
for (fn1 = 0; fn1 < area1->numfaces; fn1++)
{
face1num = abs((*aasworld).faceindex[area1->firstface + fn1]);
face1 = &(*aasworld).faces[face1num];
side1 = face1->frontarea != areanums[i];
//check if the face isn't a shared one with one of the other areas
for (s = 0; s < numareas; s++)
{
if (s == i) continue;
if (face1->frontarea == s || face1->backarea == s) break;
} //end for
//if the face was a shared one
if (s != numareas) continue;
//
for (j = 0; j < numareas; j++)
{
if (j == i) continue;
area2 = &(*aasworld).areas[areanums[j]];
for (fn2 = 0; fn2 < area2->numfaces; fn2++)
{
face2num = abs((*aasworld).faceindex[area2->firstface + fn2]);
face2 = &(*aasworld).faces[face2num];
side2 = face2->frontarea != areanums[j];
//check if the face isn't a shared one with one of the other areas
for (s = 0; s < numareas; s++)
{
if (s == j) continue;
if (face2->frontarea == s || face2->backarea == s) break;
} //end for
//if the face was a shared one
if (s != numareas) continue;
//
if (AAS_NonConvexFaces(face1, face2, side1, side2)) return qfalse;
} //end for
} //end for
} //end for
} //end for
return qtrue;
} //end of the function AAS_CanMergeAreas
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
qboolean AAS_NonConvexEdges(aas_edge_t *edge1, aas_edge_t *edge2, int side1, int side2, int planenum)
{
int i;
vec3_t edgevec1, edgevec2, normal1, normal2;
float dist1, dist2;
aas_plane_t *plane;
plane = &(*aasworld).planes[planenum];
VectorSubtract((*aasworld).vertexes[edge1->v[1]], (*aasworld).vertexes[edge1->v[0]], edgevec1);
VectorSubtract((*aasworld).vertexes[edge2->v[1]], (*aasworld).vertexes[edge2->v[0]], edgevec2);
if (side1) VectorInverse(edgevec1);
if (side2) VectorInverse(edgevec2);
//
CrossProduct(edgevec1, plane->normal, normal1);
dist1 = DotProduct(normal1, (*aasworld).vertexes[edge1->v[0]]);
CrossProduct(edgevec2, plane->normal, normal2);
dist2 = DotProduct(normal2, (*aasworld).vertexes[edge2->v[0]]);
for (i = 0; i < 2; i++)
{
if (DotProduct((*aasworld).vertexes[edge1->v[i]], normal2) - dist2 < -0.01) return qfalse;
} //end for
for (i = 0; i < 2; i++)
{
if (DotProduct((*aasworld).vertexes[edge2->v[i]], normal1) - dist1 < -0.01) return qfalse;
} //end for
return qtrue;
} //end of the function AAS_NonConvexEdges
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
qboolean AAS_CanMergeFaces(int *facenums, int numfaces, int planenum)
{
int i, j, s, edgenum1, edgenum2, side1, side2, en1, en2, ens;
aas_face_t *face1, *face2, *otherface;
aas_edge_t *edge1, *edge2;
for (i = 0; i < numfaces; i++)
{
face1 = &(*aasworld).faces[facenums[i]];
for (en1 = 0; en1 < face1->numedges; en1++)
{
edgenum1 = (*aasworld).edgeindex[face1->firstedge + en1];
side1 = (edgenum1 < 0) ^ (face1->planenum != planenum);
edgenum1 = abs(edgenum1);
edge1 = &(*aasworld).edges[edgenum1];
//check if the edge is shared with another face
for (s = 0; s < numfaces; s++)
{
if (s == i) continue;
otherface = &(*aasworld).faces[facenums[s]];
for (ens = 0; ens < otherface->numedges; ens++)
{
if (edgenum1 == abs((*aasworld).edgeindex[otherface->firstedge + ens])) break;
} //end for
if (ens != otherface->numedges) break;
} //end for
//if the edge was shared
if (s != numfaces) continue;
//
for (j = 0; j < numfaces; j++)
{
if (j == i) continue;
face2 = &(*aasworld).faces[facenums[j]];
for (en2 = 0; en2 < face2->numedges; en2++)
{
edgenum2 = (*aasworld).edgeindex[face2->firstedge + en2];
side2 = (edgenum2 < 0) ^ (face2->planenum != planenum);
edgenum2 = abs(edgenum2);
edge2 = &(*aasworld).edges[edgenum2];
//check if the edge is shared with another face
for (s = 0; s < numfaces; s++)
{
if (s == i) continue;
otherface = &(*aasworld).faces[facenums[s]];
for (ens = 0; ens < otherface->numedges; ens++)
{
if (edgenum2 == abs((*aasworld).edgeindex[otherface->firstedge + ens])) break;
} //end for
if (ens != otherface->numedges) break;
} //end for
//if the edge was shared
if (s != numfaces) continue;
//
if (AAS_NonConvexEdges(edge1, edge2, side1, side2, planenum)) return qfalse;
} //end for
} //end for
} //end for
} //end for
return qtrue;
} //end of the function AAS_CanMergeFaces*/
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
void AAS_ConnectedAreas_r( int *areanums, int numareas, int *connectedareas, int curarea ) {
int i, j, otherareanum, facenum;
aas_area_t *area;
aas_face_t *face;
connectedareas[curarea] = qtrue;
area = &( *aasworld ).areas[areanums[curarea]];
for ( i = 0; i < area->numfaces; i++ )
{
facenum = abs( ( *aasworld ).faceindex[area->firstface + i] );
face = &( *aasworld ).faces[facenum];
//if the face is solid
if ( face->faceflags & FACE_SOLID ) {
continue;
}
//get the area at the other side of the face
if ( face->frontarea != areanums[curarea] ) {
otherareanum = face->frontarea;
} else { otherareanum = face->backarea;}
//check if the face is leading to one of the other areas
for ( j = 0; j < numareas; j++ )
{
if ( areanums[j] == otherareanum ) {
break;
}
} //end for
//if the face isn't leading to one of the other areas
if ( j == numareas ) {
continue;
}
//if the other area is already connected
if ( connectedareas[j] ) {
continue;
}
//recursively proceed with the other area
AAS_ConnectedAreas_r( areanums, numareas, connectedareas, j );
} //end for
} //end of the function AAS_ConnectedAreas_r
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
qboolean AAS_ConnectedAreas( int *areanums, int numareas ) {
int connectedareas[MAX_PORTALAREAS], i;
memset( connectedareas, 0, sizeof( connectedareas ) );
if ( numareas < 1 ) {
return qfalse;
}
if ( numareas == 1 ) {
return qtrue;
}
AAS_ConnectedAreas_r( areanums, numareas, connectedareas, 0 );
for ( i = 0; i < numareas; i++ )
{
if ( !connectedareas[i] ) {
return qfalse;
}
} //end for
return qtrue;
} //end of the function AAS_ConnectedAreas
//===========================================================================
// gets adjacent areas with less presence types recursively
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
int AAS_GetAdjacentAreasWithLessPresenceTypes_r( int *areanums, int numareas, int curareanum ) {
int i, j, presencetype, otherpresencetype, otherareanum, facenum;
aas_area_t *area;
aas_face_t *face;
areanums[numareas++] = curareanum;
area = &( *aasworld ).areas[curareanum];
presencetype = ( *aasworld ).areasettings[curareanum].presencetype;
for ( i = 0; i < area->numfaces; i++ )
{
facenum = abs( ( *aasworld ).faceindex[area->firstface + i] );
face = &( *aasworld ).faces[facenum];
//if the face is solid
if ( face->faceflags & FACE_SOLID ) {
continue;
}
//the area at the other side of the face
if ( face->frontarea != curareanum ) {
otherareanum = face->frontarea;
} else { otherareanum = face->backarea;}
//
otherpresencetype = ( *aasworld ).areasettings[otherareanum].presencetype;
//if the other area has less presence types
if ( ( presencetype & ~otherpresencetype ) &&
!( otherpresencetype & ~presencetype ) ) {
//check if the other area isn't already in the list
for ( j = 0; j < numareas; j++ )
{
if ( otherareanum == areanums[j] ) {
break;
}
} //end for
//if the other area isn't already in the list
if ( j == numareas ) {
if ( numareas >= MAX_PORTALAREAS ) {
AAS_Error( "MAX_PORTALAREAS\n" );
return numareas;
} //end if
numareas = AAS_GetAdjacentAreasWithLessPresenceTypes_r( areanums, numareas, otherareanum );
} //end if
} //end if
} //end for
return numareas;
} //end of the function AAS_GetAdjacentAreasWithLessPresenceTypes_r
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
int AAS_CheckAreaForPossiblePortals( int areanum ) {
int i, j, k, fen, ben, frontedgenum, backedgenum, facenum;
int areanums[MAX_PORTALAREAS], numareas, otherareanum;
int numareafrontfaces[MAX_PORTALAREAS], numareabackfaces[MAX_PORTALAREAS];
int frontfacenums[MAX_PORTALAREAS], backfacenums[MAX_PORTALAREAS];
int numfrontfaces, numbackfaces;
int frontareanums[MAX_PORTALAREAS], backareanums[MAX_PORTALAREAS];
int numfrontareas, numbackareas;
int frontplanenum, backplanenum, faceplanenum;
aas_area_t *area;
aas_face_t *frontface, *backface, *face;
//if it isn't already a portal
if ( ( *aasworld ).areasettings[areanum].contents & AREACONTENTS_CLUSTERPORTAL ) {
return 0;
}
//it must be a grounded area
if ( !( ( *aasworld ).areasettings[areanum].areaflags & AREA_GROUNDED ) ) {
return 0;
}
//
memset( numareafrontfaces, 0, sizeof( numareafrontfaces ) );
memset( numareabackfaces, 0, sizeof( numareabackfaces ) );
numfrontfaces = numbackfaces = 0;
numfrontareas = numbackareas = 0;
frontplanenum = backplanenum = -1;
//add any adjacent areas with less presence types
numareas = AAS_GetAdjacentAreasWithLessPresenceTypes_r( areanums, 0, areanum );
//
for ( i = 0; i < numareas; i++ )
{
area = &( *aasworld ).areas[areanums[i]];
for ( j = 0; j < area->numfaces; j++ )
{
facenum = abs( ( *aasworld ).faceindex[area->firstface + j] );
face = &( *aasworld ).faces[facenum];
//if the face is solid
if ( face->faceflags & FACE_SOLID ) {
continue;
}
//check if the face is shared with one of the other areas
for ( k = 0; k < numareas; k++ )
{
if ( k == i ) {
continue;
}
if ( face->frontarea == areanums[k] || face->backarea == areanums[k] ) {
break;
}
} //end for
//if the face is shared
if ( k != numareas ) {
continue;
}
//the number of the area at the other side of the face
if ( face->frontarea == areanums[i] ) {
otherareanum = face->backarea;
} else { otherareanum = face->frontarea;}
//if the other area already is a cluter portal
if ( ( *aasworld ).areasettings[otherareanum].contents & AREACONTENTS_CLUSTERPORTAL ) {
return 0;
}
//number of the plane of the area
faceplanenum = face->planenum & ~1;
//
if ( frontplanenum < 0 || faceplanenum == frontplanenum ) {
frontplanenum = faceplanenum;
frontfacenums[numfrontfaces++] = facenum;
for ( k = 0; k < numfrontareas; k++ )
{
if ( frontareanums[k] == otherareanum ) {
break;
}
} //end for
if ( k == numfrontareas ) {
frontareanums[numfrontareas++] = otherareanum;
}
numareafrontfaces[i]++;
} //end if
else if ( backplanenum < 0 || faceplanenum == backplanenum ) {
backplanenum = faceplanenum;
backfacenums[numbackfaces++] = facenum;
for ( k = 0; k < numbackareas; k++ )
{
if ( backareanums[k] == otherareanum ) {
break;
}
} //end for
if ( k == numbackareas ) {
backareanums[numbackareas++] = otherareanum;
}
numareabackfaces[i]++;
} //end else
else
{
return 0;
} //end else
} //end for
} //end for
//every area should have at least one front face and one back face
for ( i = 0; i < numareas; i++ )
{
if ( !numareafrontfaces[i] || !numareabackfaces[i] ) {
return 0;
}
} //end for
//the front areas should all be connected
if ( !AAS_ConnectedAreas( frontareanums, numfrontareas ) ) {
return 0;
}
//the back areas should all be connected
if ( !AAS_ConnectedAreas( backareanums, numbackareas ) ) {
return 0;
}
//none of the front faces should have a shared edge with a back face
for ( i = 0; i < numfrontfaces; i++ )
{
frontface = &( *aasworld ).faces[frontfacenums[i]];
for ( fen = 0; fen < frontface->numedges; fen++ )
{
frontedgenum = abs( ( *aasworld ).edgeindex[frontface->firstedge + fen] );
for ( j = 0; j < numbackfaces; j++ )
{
backface = &( *aasworld ).faces[backfacenums[j]];
for ( ben = 0; ben < backface->numedges; ben++ )
{
backedgenum = abs( ( *aasworld ).edgeindex[backface->firstedge + ben] );
if ( frontedgenum == backedgenum ) {
break;
}
} //end for
if ( ben != backface->numedges ) {
break;
}
} //end for
if ( j != numbackfaces ) {
break;
}
} //end for
if ( fen != frontface->numedges ) {
break;
}
} //end for
if ( i != numfrontfaces ) {
return 0;
}
//set the cluster portal contents
for ( i = 0; i < numareas; i++ )
{
( *aasworld ).areasettings[areanums[i]].contents |= AREACONTENTS_CLUSTERPORTAL;
//this area can be used as a route portal
( *aasworld ).areasettings[areanums[i]].contents |= AREACONTENTS_ROUTEPORTAL;
Log_Write( "possible portal: %d\r\n", areanums[i] );
} //end for
//
return numareas;
} //end of the function AAS_CheckAreaForPossiblePortals
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
void AAS_FindPossiblePortals( void ) {
int i, numpossibleportals;
numpossibleportals = 0;
for ( i = 1; i < ( *aasworld ).numareas; i++ )
{
numpossibleportals += AAS_CheckAreaForPossiblePortals( i );
} //end for
botimport.Print( PRT_MESSAGE, "\r%6d possible portals\n", numpossibleportals );
} //end of the function AAS_FindPossiblePortals
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -