/
p_mobj.c
1233 lines (1032 loc) · 34 KB
/
p_mobj.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
/**\file
*\section License
* License: GPL
* Online License Link: http://www.gnu.org/licenses/gpl.html
*
*\author Copyright © 2003-2012 Jaakko Keränen <jaakko.keranen@iki.fi>
*\author Copyright © 2005-2012 Daniel Swanson <danij@dengine.net>
*\author Copyright © 2003-2005 Samuel Villarreal <svkaiser@gmail.com>
*\author Copyright © 1999 by Chi Hoang, Lee Killough, Jim Flynn, Rand Phares, Ty Halderman (PrBoom 2.2.6)
*\author Copyright © 1999-2000 by Jess Haas, Nicolas Kalkhof, Colin Phipps, Florian Schulze (PrBoom 2.2.6)
*\author Copyright © 1993-1996 by id Software, Inc.
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
/**
* p_mobj.c: Moving object handling. Spawn functions.
*/
#ifdef MSVC
# pragma optimize("g", off)
#endif
// HEADER FILES ------------------------------------------------------------
#include <math.h>
#include <stdio.h>
#include <string.h>
#include "jdoom64.h"
#include "dmu_lib.h"
#include "hu_stuff.h"
#include "g_common.h"
#include "p_map.h"
#include "p_terraintype.h"
#include "p_player.h"
#include "p_tick.h"
#include "p_actor.h"
#include "p_start.h"
// MACROS ------------------------------------------------------------------
#define VANISHTICS (2*TICSPERSEC)
#define SPAWNFADETICS (1*TICSPERSEC)
#define MAX_BOB_OFFSET (8)
// TYPES -------------------------------------------------------------------
// EXTERNAL FUNCTION PROTOTYPES --------------------------------------------
// PUBLIC FUNCTION PROTOTYPES ----------------------------------------------
// PRIVATE FUNCTION PROTOTYPES ---------------------------------------------
// EXTERNAL DATA DECLARATIONS ----------------------------------------------
// PUBLIC DATA DEFINITIONS -------------------------------------------------
// PRIVATE DATA DEFINITIONS ------------------------------------------------
// CODE --------------------------------------------------------------------
const terraintype_t* P_MobjGetFloorTerrainType(mobj_t* mo)
{
Sector* sec = P_GetPtrp(mo->bspLeaf, DMU_SECTOR);
return P_PlaneMaterialTerrainType(sec, PLN_FLOOR);
}
/**
* @return @c true, if the mobj is still present.
*/
boolean P_MobjChangeState(mobj_t* mobj, statenum_t state)
{
state_t* st;
do
{
if(state == S_NULL)
{
mobj->state = (state_t *) S_NULL;
P_MobjRemove(mobj, false);
return false;
}
P_MobjSetState(mobj, state);
st = &STATES[state];
mobj->turnTime = false; // $visangle-facetarget
if(Mobj_ActionFunctionAllowed(mobj))
{
if(st->action) st->action(mobj);
}
state = st->nextState;
} while(!mobj->tics);
return true;
}
void P_ExplodeMissile(mobj_t *mo)
{
mo->mom[MX] = mo->mom[MY] = mo->mom[MZ] = 0;
P_MobjChangeState(mo, P_GetState(mo->type, SN_DEATH));
mo->tics -= P_Random() & 3;
if(mo->tics < 1)
mo->tics = 1;
if(mo->flags & MF_MISSILE)
{
mo->flags &= ~MF_MISSILE;
mo->flags |= MF_VIEWALIGN;
// Remove the brightshadow flag.
if(mo->flags & MF_BRIGHTSHADOW)
mo->flags &= ~MF_BRIGHTSHADOW;
if(mo->flags & MF_BRIGHTEXPLODE)
mo->flags |= MF_BRIGHTSHADOW;
}
if(mo->info->deathSound)
S_StartSound(mo->info->deathSound, mo);
}
void P_FloorBounceMissile(mobj_t *mo)
{
mo->mom[MZ] = -mo->mom[MZ];
P_MobjChangeState(mo, P_GetState(mo->type, SN_DEATH));
}
/**
* @return The ground friction factor for the mobj.
*/
float P_MobjGetFriction(mobj_t *mo)
{
if((mo->flags2 & MF2_FLY) && !(mo->pos[VZ] <= mo->floorZ) && !mo->onMobj)
{
return FRICTION_FLY;
}
return XS_Friction(P_GetPtrp(mo->bspLeaf, DMU_SECTOR));
}
static float getFriction(mobj_t* mo)
{
if((mo->flags2 & MF2_FLY) && !(mo->pos[VZ] <= mo->floorZ) &&
!mo->onMobj)
{ // Airborne friction.
return FRICTION_FLY;
}
#if __JHERETIC__
if(P_ToXSector(P_GetPtrp(mo->bspLeaf, DMU_SECTOR))->special == 15)
{ // Friction_Low
return FRICTION_LOW;
}
#endif
return P_MobjGetFriction(mo);
}
void P_MobjMoveXY(mobj_t* mo)
{
float pos[3], mom[3];
player_t* player;
boolean largeNegative;
// $democam: cameramen have their own movement code
if(P_CameraXYMovement(mo))
return;
if(INRANGE_OF(mo->mom[MX], 0, NOMOM_THRESHOLD) &&
INRANGE_OF(mo->mom[MY], 0, NOMOM_THRESHOLD))
{
if(mo->flags & MF_SKULLFLY)
{ // The skull slammed into something.
mo->flags &= ~MF_SKULLFLY;
mo->mom[MX] = mo->mom[MY] = mo->mom[MZ] = 0;
P_MobjChangeState(mo, P_GetState(mo->type, SN_SPAWN));
}
return;
}
mom[MX] = MINMAX_OF(-MAXMOM, mo->mom[MX], MAXMOM);
mom[MY] = MINMAX_OF(-MAXMOM, mo->mom[MY], MAXMOM);
mo->mom[MX] = mom[MX];
mo->mom[MY] = mom[MY];
player = mo->player;
do
{
/**
* DOOM.exe bug fix:
* Large negative displacements were never considered. This explains the
* tendency for Mancubus fireballs to pass through walls.
*/
largeNegative = false;
if(!cfg.moveBlock && (mom[MX] < -MAXMOMSTEP || mom[MY] < -MAXMOMSTEP))
{
// Make an exception for "north-only wallrunning".
if(!(cfg.wallRunNorthOnly && mo->wallRun))
largeNegative = true;
}
if(largeNegative || mom[MX] > MAXMOMSTEP || mom[MY] > MAXMOMSTEP)
{
pos[VX] = mo->pos[VX] + mom[VX] / 2;
pos[VY] = mo->pos[VY] + mom[VY] / 2;
mom[VX] /= 2;
mom[VY] /= 2;
}
else
{
pos[VX] = mo->pos[VX] + mom[MX];
pos[VY] = mo->pos[VY] + mom[MY];
mom[MX] = mom[MY] = 0;
}
// If mobj was wallrunning - stop.
if(mo->wallRun)
mo->wallRun = false;
// $dropoff_fix.
if(!P_TryMove(mo, pos[VX], pos[VY], true, false))
{ // Blocked move.
if(mo->flags2 & MF2_SLIDE)
{ // Try to slide along it.
P_SlideMove(mo);
}
else if(mo->flags & MF_MISSILE)
{
Sector* backSec;
//// kludge: Prevent missiles exploding against the sky.
if(ceilingLine &&
(backSec = P_GetPtrp(ceilingLine, DMU_BACK_SECTOR)))
{
material_t* mat = P_GetPtrp(backSec, DMU_CEILING_MATERIAL);
if((P_GetIntp(mat, DMU_FLAGS) & MATF_SKYMASK) &&
mo->pos[VZ] > P_GetFloatp(backSec, DMU_CEILING_HEIGHT))
{
P_MobjRemove(mo, false);
return;
}
}
if(floorLine &&
(backSec = P_GetPtrp(floorLine, DMU_BACK_SECTOR)))
{
material_t* mat = P_GetPtrp(backSec, DMU_FLOOR_MATERIAL);
if((P_GetIntp(mat, DMU_FLAGS) & MATF_SKYMASK) &&
mo->pos[VZ] < P_GetFloatp(backSec, DMU_FLOOR_HEIGHT))
{
P_MobjRemove(mo, false);
return;
}
}
//// kludge end.
P_ExplodeMissile(mo);
}
else
{
mo->mom[MX] = mo->mom[MY] = 0;
}
}
} while(!INRANGE_OF(mom[MX], 0, NOMOM_THRESHOLD) ||
!INRANGE_OF(mom[MY], 0, NOMOM_THRESHOLD));
// Slow down.
Mobj_XYMoveStopping(mo);
}
/*
static int PIT_Splash(Sector *sector, void *data)
{
mobj_t *mo = data;
float floorheight;
floorheight = P_GetFloatp(sector, DMU_FLOOR_HEIGHT);
// Is the mobj touching the floor of this sector?
if(mo->pos[VZ] < floorheight &&
mo->pos[VZ] + mo->height / 2 > floorheight)
{
//// \todo Play a sound, spawn a generator, etc.
}
// Continue checking.
return false;
}
*/
void P_HitFloor(mobj_t* mo)
{
//P_MobjSectorsIterator(mo, PIT_Splash, mo);
}
void P_MobjMoveZ(mobj_t* mo)
{
float gravity, dist, delta;
gravity = XS_Gravity(P_GetPtrp(mo->bspLeaf, DMU_SECTOR));
// $democam: cameramen get special z movement.
if(P_CameraZMovement(mo))
return;
// $voodoodolls: Check for smooth step up unless a voodoo doll.
if(mo->player && mo->player->plr->mo == mo &&
mo->pos[VZ] < mo->floorZ)
{
mo->player->viewHeight -= mo->floorZ - mo->pos[VZ];
mo->player->viewHeightDelta =
(cfg.plrViewHeight - mo->player->viewHeight) / 8;
}
// Adjust height.
mo->pos[VZ] += mo->mom[MZ];
if((mo->flags2 & MF2_FLY) &&
mo->onMobj && mo->pos[VZ] > mo->onMobj->pos[VZ] + mo->onMobj->height)
mo->onMobj = NULL; // We were on a mobj, we are NOT now.
if(!((mo->flags ^ MF_FLOAT) & (MF_FLOAT | MF_SKULLFLY | MF_INFLOAT)) &&
mo->target && !P_MobjIsCamera(mo->target))
{
// Float down towards target if too close.
dist = P_ApproxDistance(mo->pos[VX] - mo->target->pos[VX],
mo->pos[VY] - mo->target->pos[VY]);
//delta = (mo->target->pos[VZ] + (mo->height / 2)) - mo->pos[VZ];
delta = (mo->target->pos[VZ] + mo->target->height / 2) -
(mo->pos[VZ] + mo->height / 2);
// Don't go INTO the target.
if(!(dist < mo->radius + mo->target->radius &&
fabs(delta) < mo->height + mo->target->height))
{
if(delta < 0 && dist < -(delta * 3))
{
mo->pos[VZ] -= FLOATSPEED;
P_MobjSetSRVOZ(mo, -FLOATSPEED);
}
else if(delta > 0 && dist < (delta * 3))
{
mo->pos[VZ] += FLOATSPEED;
P_MobjSetSRVOZ(mo, FLOATSPEED);
}
}
}
// Do some fly-bobbing.
if(mo->player && (mo->flags2 & MF2_FLY) && mo->pos[VZ] > mo->floorZ &&
!mo->onMobj && (mapTime & 2))
{
mo->pos[VZ] += FIX2FLT(finesine[(FINEANGLES / 20 * mapTime >> 2) & FINEMASK]);
}
// Clip movement. Another thing?
// jd64 >
// DJS - FIXME!
if(mo->pos[VZ] <= mo->floorZ && (mo->flags & MF_MISSILE))
{
// Hit the floor
mo->pos[VZ] = mo->floorZ;
P_ExplodeMissile(mo);
return;
}
// < d64tc
// Clip movement. Another thing?
if(mo->onMobj && mo->pos[VZ] <= mo->onMobj->pos[VZ] + mo->onMobj->height)
{
if(mo->mom[MZ] < 0)
{
if(mo->player && mo->mom[MZ] < -gravity * 8 &&
!(mo->flags2 & MF2_FLY))
{
// Squat down.
// Decrease viewheight for a moment after hitting the ground
// (hard), and utter appropriate sound.
mo->player->viewHeightDelta = mo->mom[MZ] / 8;
if(mo->player->health > 0)
S_StartSound(SFX_OOF, mo);
}
mo->mom[MZ] = 0;
}
if(mo->mom[MZ] == 0)
mo->pos[VZ] = mo->onMobj->pos[VZ] + mo->onMobj->height;
if((mo->flags & MF_MISSILE) && !(mo->flags & MF_NOCLIP))
{
P_ExplodeMissile(mo);
return;
}
}
// jd64 >
// MotherDemon's Fire attacks can climb up/down stairs
// DJS - FIXME!
#if 0
if((mo->flags & MF_MISSILE) && (mo->type == MT_FIREEND))
{
mo->pos[VZ] = mo->floorZ;
if(mo->type == MT_FIREEND)
{
return;
}
else
{
P_ExplodeMissile(mo);
return;
}
}
#endif
// < d64tc
// The floor.
if(mo->pos[VZ] <= mo->floorZ)
{ // Hit the floor.
boolean movingDown;
// Note (id):
// somebody left this after the setting momz to 0,
// kinda useless there.
//
// cph - This was the a bug in the linuxdoom-1.10 source which
// caused it not to sync Doom 2 v1.9 demos. Someone
// added the above comment and moved up the following code. So
// demos would desync in close lost soul fights.
// Note that this only applies to original Doom 1 or Doom2 demos - not
// Final Doom and Ultimate Doom. So we test demo_compatibility *and*
// gameMission. (Note we assume that Doom1 is always Ult Doom, which
// seems to hold for most published demos.)
//
// fraggle - cph got the logic here slightly wrong. There are three
// versions of Doom 1.9:
//
// * The version used in registered doom 1.9 + doom2 - no bounce
// * The version used in ultimate doom - has bounce
// * The version used in final doom - has bounce
//
// So we need to check that this is either retail or commercial
// (but not doom2)
int correctLostSoulBounce = true;
if(correctLostSoulBounce && (mo->flags & MF_SKULLFLY))
{
// The skull slammed into something.
mo->mom[MZ] = -mo->mom[MZ];
}
if(movingDown = (mo->mom[MZ] < 0))
{
if(mo->player && mo->player->plr->mo == mo &&
mo->mom[MZ] < -gravity * 8 && !(mo->flags2 & MF2_FLY))
{
// Squat down.
// Decrease viewheight for a moment after hitting the ground
// (hard), and utter appropriate sound.
mo->player->viewHeightDelta = mo->mom[MZ] / 8;
mo->player->jumpTics = 10;
/**
* DOOM bug:
* Dead players would grunt when hitting the ground (e.g.,
* after an archvile attack).
*/
if(mo->player->health > 0)
S_StartSound(SFX_OOF, mo);
}
}
mo->pos[VZ] = mo->floorZ;
if(movingDown)
P_HitFloor(mo);
/**
* See lost soul bouncing comment above. We need this here for bug
* compatibility with original Doom2 v1.9 - if a soul is charging
* and hit by a raising floor this would incorrectly reverse it's
* Y momentum.
*/
if(!correctLostSoulBounce && (mo->flags & MF_SKULLFLY))
mo->mom[MZ] = -mo->mom[MZ];
if(!((mo->flags ^ MF_MISSILE) & (MF_MISSILE | MF_NOCLIP)))
{
if(mo->flags2 & MF2_FLOORBOUNCE)
{
P_FloorBounceMissile(mo);
return;
}
else
{
P_ExplodeMissile(mo);
return;
}
}
if(movingDown && mo->mom[MZ] < 0)
mo->mom[MZ] = 0;
}
else if(mo->flags2 & MF2_LOGRAV)
{
if(mo->mom[MZ] == 0)
mo->mom[MZ] = -(gravity / 8) * 2;
else
mo->mom[MZ] -= (gravity / 8);
}
else if(!(mo->flags & MF_NOGRAVITY))
{
if(mo->mom[MZ] == 0)
mo->mom[MZ] = -gravity * 2;
else
mo->mom[MZ] -= gravity;
}
if(mo->pos[VZ] + mo->height > mo->ceilingZ)
{ // Hit the ceiling.
if(mo->mom[MZ] > 0)
mo->mom[MZ] = 0;
mo->pos[VZ] = mo->ceilingZ - mo->height;
if(mo->flags & MF_SKULLFLY)
{ // The skull slammed into something.
mo->mom[MZ] = -mo->mom[MZ];
}
if(!((mo->flags ^ MF_MISSILE) & (MF_MISSILE | MF_NOCLIP)))
{
// Don't explode against sky.
if(P_GetIntp(P_GetPtrp(mo->bspLeaf, DMU_CEILING_MATERIAL),
DMU_FLAGS) & MATF_SKYMASK)
{
P_MobjRemove(mo, false);
}
else
{
P_ExplodeMissile(mo);
}
}
}
}
void P_NightmareRespawn(mobj_t* mobj)
{
mobj_t* mo;
// Something is occupying it's position?
if(!P_CheckPosition2f(mobj, mobj->spawnSpot.pos[VX],
mobj->spawnSpot.pos[VY]))
return; // No respwan.
if((mo = P_SpawnMobj3fv(mobj->type, mobj->spawnSpot.pos,
mobj->spawnSpot.angle, mobj->spawnSpot.flags)))
{
mo->reactionTime = 18;
// Spawn a teleport fog at old spot.
if((mo = P_SpawnMobj3f(MT_TFOG, mobj->pos[VX], mobj->pos[VY], 0,
mobj->angle, MSF_Z_FLOOR)))
S_StartSound(SFX_TELEPT, mo);
// Spawn a teleport fog at the new spot.
if((mo = P_SpawnMobj3fv(MT_TFOG, mobj->spawnSpot.pos,
mobj->spawnSpot.angle,
mobj->spawnSpot.flags)))
S_StartSound(SFX_TELEPT, mo);
}
// Remove the old monster.
P_MobjRemove(mobj, true);
}
void P_MobjThinker(mobj_t *mobj)
{
if(mobj->ddFlags & DDMF_REMOTE)
return; // Remote mobjs are handled separately.
// Spectres get selector = 1.
if(mobj->type == MT_SHADOWS)
mobj->selector = (mobj->selector & ~DDMOBJ_SELECTOR_MASK) | 1;
// The first three bits of the selector special byte contain a
// relative health level.
P_UpdateHealthBits(mobj);
#if __JHERETIC__
// Lightsources must stay where they're hooked.
if(mobj->type == MT_LIGHTSOURCE)
{
if(mobj->moveDir > 0)
mobj->pos[VZ] =
P_GetFloatp(mobj->bspLeaf, DMU_FLOOR_HEIGHT);
else
mobj->pos[VZ] =
P_GetFixedp(mobj->bspLeaf, DMU_CEILING_HEIGHT);
mobj->pos[VZ] += FIX2FLT(mobj->moveDir);
return;
}
#endif
// Handle X and Y momentums.
if(!FEQUAL(mobj->mom[MX], 0) || !FEQUAL(mobj->mom[MY], 0) || (mobj->flags & MF_SKULLFLY))
{
P_MobjMoveXY(mobj);
//// \fixme decent NOP/NULL/Nil function pointer please.
if(mobj->thinker.function == NOPFUNC)
return; // Mobj was removed.
}
if(mobj->flags2 & MF2_FLOATBOB)
{ // Floating item bobbing motion.
// Keep it on the floor.
mobj->pos[VZ] = mobj->floorZ;
mobj->floorClip = 0;
if(mobj->floorClip < -MAX_BOB_OFFSET)
{
// We don't want it going through the floor.
mobj->floorClip = -MAX_BOB_OFFSET;
}
}
else if(!FEQUAL(mobj->pos[VZ], mobj->floorZ) || !FEQUAL(mobj->mom[MZ], 0))
{
P_MobjMoveZ(mobj);
if(mobj->thinker.function != P_MobjThinker) // Must've been removed.
return; // Mobj was removed.
}
// Non-sentient objects at rest.
else if(!(mobj->mom[MX] == 0 && mobj->mom[MY] == 0) && !sentient(mobj) &&
!(mobj->player) && !((mobj->flags & MF_CORPSE) &&
cfg.slidingCorpses))
{
// Objects fall off ledges if they are hanging off slightly push
// off of ledge if hanging more than halfway off
if(mobj->pos[VZ] > mobj->dropOffZ && // Only objects contacting dropoff.
!(mobj->flags & MF_NOGRAVITY) && cfg.fallOff)
{
P_ApplyTorque(mobj);
}
else
{
mobj->intFlags &= ~MIF_FALLING;
mobj->gear = 0; // Reset torque.
}
}
if(cfg.slidingCorpses)
{
if(((mobj->flags & MF_CORPSE)? mobj->pos[VZ] > mobj->dropOffZ :
mobj->pos[VZ] - mobj->dropOffZ > 24) && // Only objects contacting drop off
!(mobj->flags & MF_NOGRAVITY)) // Only objects which fall.
{
P_ApplyTorque(mobj); // Apply torque.
}
else
{
mobj->intFlags &= ~MIF_FALLING;
mobj->gear = 0; // Reset torque.
}
}
// $vanish: dead monsters disappear after some time.
if(cfg.corpseTime && (mobj->flags & MF_CORPSE) && mobj->corpseTics != -1)
{
if(++mobj->corpseTics < cfg.corpseTime * TICSPERSEC)
{
mobj->translucency = 0; // Opaque.
}
else if(mobj->corpseTics < cfg.corpseTime * TICSPERSEC + VANISHTICS)
{
// Translucent during vanishing.
mobj->translucency =
((mobj->corpseTics -
cfg.corpseTime * TICSPERSEC) * 255) / VANISHTICS;
}
else
{
// Too long; get rid of the corpse.
mobj->corpseTics = -1;
return;
}
}
// jd64 >
// Fade monsters upon spawning.
if(mobj->intFlags & MIF_FADE)
{
if(++mobj->spawnFadeTics < SPAWNFADETICS)
{
mobj->translucency = MINMAX_OF(0, 255 -
255 * mobj->spawnFadeTics / SPAWNFADETICS, 255);
}
else
{
mobj->intFlags &= ~MIF_FADE;
mobj->translucency = 0;
}
}
// < d64tc
// Cycle through states, calling action functions at transitions.
if(mobj->tics != -1)
{
mobj->tics--;
P_MobjAngleSRVOTicker(mobj); // "angle-servo"; smooth actor turning.
// You can cycle through multiple STATES in a tic.
if(!mobj->tics)
{
P_MobjClearSRVO(mobj);
if(!P_MobjChangeState(mobj, mobj->state->nextState))
return; // Freed itself.
}
}
else if(!IS_CLIENT)
{
// Check for nightmare respawn.
if(!(mobj->flags & MF_COUNTKILL))
return;
if(!respawnMonsters)
return;
mobj->moveCount++;
if(mobj->moveCount < 12 * 35)
return;
if(mapTime & 31)
return;
if(P_Random() > 4)
return;
P_NightmareRespawn(mobj);
}
}
/**
* Spawns a mobj of "type" at the specified position.
*/
mobj_t* P_SpawnMobj3f(mobjtype_t type, float x, float y, float z,
angle_t angle, int spawnFlags)
{
mobj_t* mo;
mobjinfo_t* info;
float space;
int ddflags = 0;
if(type < MT_FIRST || type >= Get(DD_NUMMOBJTYPES))
{
#ifdef _DEBUG
Con_Error("P_SpawnMobj: Illegal mo type %i.\n", type);
#endif
return NULL;
}
info = &MOBJINFO[type];
// Clients only spawn local objects.
if(!(info->flags & MF_LOCAL) && IS_CLIENT)
return NULL;
// Not for deathmatch?
if(deathmatch && (info->flags & MF_NOTDMATCH))
return NULL;
// Check for specific disabled objects.
if(IS_NETGAME)
{
// Cooperative weapons?
if(cfg.noCoopWeapons && !deathmatch && type >= MT_CLIP &&
type <= MT_SUPERSHOTGUN)
return NULL;
/**
* @todo cfg.noCoopAnything: Exactly which objects is this supposed to
* prevent spawning? (at least not MT_PLAYER*...). -jk
*/
#if 0
// Don't spawn any special objects in coop?
if(cfg.noCoopAnything && !deathmatch)
return NULL;
#endif
// BFG disabled in netgames?
if(cfg.noNetBFG && type == MT_MISC25)
return NULL;
}
// Don't spawn any monsters if -noMonstersParm.
if(noMonstersParm && ((info->flags & MF_COUNTKILL) || type == MT_SKULL))
return NULL;
if(info->flags & MF_SOLID)
ddflags |= DDMF_SOLID;
if(info->flags2 & MF2_DONTDRAW)
ddflags |= DDMF_DONTDRAW;
mo = P_MobjCreate(P_MobjThinker, x, y, z, angle, info->radius,
info->height, ddflags);
mo->type = type;
mo->info = info;
mo->flags = info->flags;
mo->flags2 = info->flags2;
mo->flags3 = info->flags3;
mo->damage = info->damage;
mo->health =
info->spawnHealth * (IS_NETGAME ? cfg.netMobHealthModifier : 1);
mo->moveDir = DI_NODIR;
mo->reactionTime = info->reactionTime;
mo->lastLook = P_Random() % MAXPLAYERS;
// Must link before setting state (ID assigned for the mo).
P_MobjSetState(mo, P_GetState(mo->type, SN_SPAWN));
// Set BSP leaf and/or block links.
P_MobjSetPosition(mo);
mo->floorZ = P_GetFloatp(mo->bspLeaf, DMU_FLOOR_HEIGHT);
mo->dropOffZ = mo->floorZ;
mo->ceilingZ = P_GetFloatp(mo->bspLeaf, DMU_CEILING_HEIGHT);
if((spawnFlags & MSF_Z_CEIL) || (info->flags & MF_SPAWNCEILING))
{
mo->pos[VZ] = mo->ceilingZ - mo->info->height - z;
}
else if((spawnFlags & MSF_Z_RANDOM) || (info->flags2 & MF2_SPAWNFLOAT))
{
space = mo->ceilingZ - mo->info->height - mo->floorZ;
if(space > 48)
{
space -= 40;
mo->pos[VZ] = ((space * P_Random()) / 256) + mo->floorZ + 40;
}
else
{
mo->pos[VZ] = mo->floorZ;
}
}
else if(spawnFlags & MSF_Z_FLOOR)
{
mo->pos[VZ] = mo->floorZ + z;
}
/*if(spawnFlags & MTF_FLOAT)
{
mo->pos[VZ] += 96;
mo->flags |= (MF_FLOAT | MF_NOGRAVITY);
}*/
if(spawnFlags & MSF_DEAF)
mo->flags |= MF_AMBUSH;
mo->floorClip = 0;
if((mo->flags2 & MF2_FLOORCLIP) &&
mo->pos[VZ] == P_GetFloatp(mo->bspLeaf, DMU_FLOOR_HEIGHT))
{
const terraintype_t* tt = P_MobjGetFloorTerrainType(mo);
if(tt->flags & TTF_FLOORCLIP)
{
mo->floorClip = 10;
}
}
/*if(spawnFlags & MTF_WALKOFF)
mo->flags |= (MF_FLOAT | MF_DROPOFF);
if(spawnFlags & MTF_TRANSLUCENT)
mo->flags |= MF_SHADOW;*/
// Copy spawn attributes to the new mobj.
mo->spawnSpot.pos[VX] = x;
mo->spawnSpot.pos[VY] = y;
mo->spawnSpot.pos[VZ] = z;
mo->spawnSpot.angle = angle;
mo->spawnSpot.flags = spawnFlags;
return mo;
}
mobj_t* P_SpawnMobj3fv(mobjtype_t type, const float pos[3], angle_t angle,
int spawnFlags)
{
return P_SpawnMobj3f(type, pos[VX], pos[VY], pos[VZ], angle, spawnFlags);
}
mobj_t* P_SpawnCustomPuff(mobjtype_t type, float x, float y, float z,
angle_t angle)
{
mobj_t* mo;
// Clients do not spawn puffs.
if(IS_CLIENT)
return NULL;
z += FIX2FLT((P_Random() - P_Random()) << 10);
if((mo = P_SpawnMobj3f(type, x, y, z, angle, 0)))
{
mo->mom[MZ] = FIX2FLT(FRACUNIT);
mo->tics -= P_Random() & 3;
// Make it last at least one tic.
if(mo->tics < 1)
mo->tics = 1;
}
return mo;
}
void P_SpawnPuff(float x, float y, float z, angle_t angle)
{
mobj_t* th =
P_SpawnCustomPuff(MT_PUFF, x, y, z, angle);
// Don't make punches spark on the wall.
if(th && attackRange == MELEERANGE)
P_MobjChangeState(th, S_PUFF3);
}
void P_SpawnBlood(float x, float y, float z, int damage, angle_t angle)
{
mobj_t* mo;
z += FIX2FLT((P_Random() - P_Random()) << 10);
if((mo = P_SpawnMobj3f(MT_BLOOD, x, y, z, angle, 0)))
{
mo->mom[MZ] = 2;
mo->tics -= P_Random() & 3;
if(mo->tics < 1)
mo->tics = 1;
if(damage <= 12 && damage >= 9)
P_MobjChangeState(mo, S_BLOOD2);
else if(damage < 9)
P_MobjChangeState(mo, S_BLOOD3);
}
}
/**
* Moves the missile forward a bit and possibly explodes it right there.
*
* @param th The missile to be checked.
*
* @return @c true, if the missile is at a valid location else
* @c false
*/
boolean P_CheckMissileSpawn(mobj_t *th)
{
th->tics -= P_Random() & 3;
if(th->tics < 1)
th->tics = 1;
// Move forward slightly so an angle can be computed if it explodes
// immediately.
th->pos[VX] += th->mom[MX] / 2;