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
|
/*************************************************************************/
/* soft_body.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "soft_body.h"
#include "core/list.h"
#include "core/object.h"
#include "core/os/os.h"
#include "core/rid.h"
#include "scene/3d/collision_object.h"
#include "scene/3d/physics_body.h"
#include "scene/3d/skeleton.h"
#include "servers/physics_server.h"
SoftBodyVisualServerHandler::SoftBodyVisualServerHandler() {}
void SoftBodyVisualServerHandler::prepare(RID p_mesh, int p_surface) {
clear();
ERR_FAIL_COND(!p_mesh.is_valid());
mesh = p_mesh;
surface = p_surface;
#ifndef _MSC_VER
#warning Softbody is not working, needs to be redone considering that these functions no longer exist
#endif
#if 0
const uint32_t surface_format = VS::get_singleton()->mesh_surface_get_format(mesh, surface);
const int surface_vertex_len = VS::get_singleton()->mesh_surface_get_array_len(mesh, p_surface);
const int surface_index_len = VS::get_singleton()->mesh_surface_get_array_index_len(mesh, p_surface);
uint32_t surface_offsets[VS::ARRAY_MAX];
buffer = VS::get_singleton()->mesh_surface_get_array(mesh, surface);
stride = VS::get_singleton()->mesh_surface_make_offsets_from_format(surface_format, surface_vertex_len, surface_index_len, surface_offsets);
offset_vertices = surface_offsets[VS::ARRAY_VERTEX];
offset_normal = surface_offsets[VS::ARRAY_NORMAL];
#endif
}
void SoftBodyVisualServerHandler::clear() {
if (mesh.is_valid()) {
buffer.resize(0);
}
mesh = RID();
}
void SoftBodyVisualServerHandler::open() {
write_buffer = buffer.ptrw();
}
void SoftBodyVisualServerHandler::close() {
//write_buffer.release();
}
void SoftBodyVisualServerHandler::commit_changes() {
VS::get_singleton()->mesh_surface_update_region(mesh, surface, 0, buffer);
}
void SoftBodyVisualServerHandler::set_vertex(int p_vertex_id, const void *p_vector3) {
copymem(&write_buffer[p_vertex_id * stride + offset_vertices], p_vector3, sizeof(float) * 3);
}
void SoftBodyVisualServerHandler::set_normal(int p_vertex_id, const void *p_vector3) {
copymem(&write_buffer[p_vertex_id * stride + offset_normal], p_vector3, sizeof(float) * 3);
}
void SoftBodyVisualServerHandler::set_aabb(const AABB &p_aabb) {
VS::get_singleton()->mesh_set_custom_aabb(mesh, p_aabb);
}
SoftBody::PinnedPoint::PinnedPoint() :
point_index(-1),
spatial_attachment(NULL) {
}
SoftBody::PinnedPoint::PinnedPoint(const PinnedPoint &obj_tocopy) {
point_index = obj_tocopy.point_index;
spatial_attachment_path = obj_tocopy.spatial_attachment_path;
spatial_attachment = obj_tocopy.spatial_attachment;
offset = obj_tocopy.offset;
}
SoftBody::PinnedPoint SoftBody::PinnedPoint::operator=(const PinnedPoint &obj) {
point_index = obj.point_index;
spatial_attachment_path = obj.spatial_attachment_path;
spatial_attachment = obj.spatial_attachment;
offset = obj.offset;
return *this;
}
void SoftBody::_update_pickable() {
if (!is_inside_tree())
return;
bool pickable = ray_pickable && is_visible_in_tree();
PhysicsServer::get_singleton()->soft_body_set_ray_pickable(physics_rid, pickable);
}
bool SoftBody::_set(const StringName &p_name, const Variant &p_value) {
String name = p_name;
String which = name.get_slicec('/', 0);
if ("pinned_points" == which) {
return _set_property_pinned_points_indices(p_value);
} else if ("attachments" == which) {
int idx = name.get_slicec('/', 1).to_int();
String what = name.get_slicec('/', 2);
return _set_property_pinned_points_attachment(idx, what, p_value);
}
return false;
}
bool SoftBody::_get(const StringName &p_name, Variant &r_ret) const {
String name = p_name;
String which = name.get_slicec('/', 0);
if ("pinned_points" == which) {
Array arr_ret;
const int pinned_points_indices_size = pinned_points.size();
const PinnedPoint *r = pinned_points.ptr();
arr_ret.resize(pinned_points_indices_size);
for (int i = 0; i < pinned_points_indices_size; ++i) {
arr_ret[i] = r[i].point_index;
}
r_ret = arr_ret;
return true;
} else if ("attachments" == which) {
int idx = name.get_slicec('/', 1).to_int();
String what = name.get_slicec('/', 2);
return _get_property_pinned_points(idx, what, r_ret);
}
return false;
}
void SoftBody::_get_property_list(List<PropertyInfo> *p_list) const {
const int pinned_points_indices_size = pinned_points.size();
p_list->push_back(PropertyInfo(Variant::PACKED_INT_ARRAY, "pinned_points"));
for (int i = 0; i < pinned_points_indices_size; ++i) {
p_list->push_back(PropertyInfo(Variant::INT, "attachments/" + itos(i) + "/point_index"));
p_list->push_back(PropertyInfo(Variant::NODE_PATH, "attachments/" + itos(i) + "/spatial_attachment_path"));
p_list->push_back(PropertyInfo(Variant::VECTOR3, "attachments/" + itos(i) + "/offset"));
}
}
bool SoftBody::_set_property_pinned_points_indices(const Array &p_indices) {
const int p_indices_size = p_indices.size();
{ // Remove the pined points on physics server that will be removed by resize
const PinnedPoint *r = pinned_points.ptr();
if (p_indices_size < pinned_points.size()) {
for (int i = pinned_points.size() - 1; i >= p_indices_size; --i) {
pin_point(r[i].point_index, false);
}
}
}
pinned_points.resize(p_indices_size);
PinnedPoint *w = pinned_points.ptrw();
int point_index;
for (int i = 0; i < p_indices_size; ++i) {
point_index = p_indices.get(i);
if (w[i].point_index != point_index) {
if (-1 != w[i].point_index)
pin_point(w[i].point_index, false);
w[i].point_index = point_index;
pin_point(w[i].point_index, true);
}
}
return true;
}
bool SoftBody::_set_property_pinned_points_attachment(int p_item, const String &p_what, const Variant &p_value) {
if (pinned_points.size() <= p_item) {
return false;
}
if ("spatial_attachment_path" == p_what) {
PinnedPoint *w = pinned_points.ptrw();
pin_point(w[p_item].point_index, true, p_value);
_make_cache_dirty();
} else if ("offset" == p_what) {
PinnedPoint *w = pinned_points.ptrw();
w[p_item].offset = p_value;
} else {
return false;
}
return true;
}
bool SoftBody::_get_property_pinned_points(int p_item, const String &p_what, Variant &r_ret) const {
if (pinned_points.size() <= p_item) {
return false;
}
const PinnedPoint *r = pinned_points.ptr();
if ("point_index" == p_what) {
r_ret = r[p_item].point_index;
} else if ("spatial_attachment_path" == p_what) {
r_ret = r[p_item].spatial_attachment_path;
} else if ("offset" == p_what) {
r_ret = r[p_item].offset;
} else {
return false;
}
return true;
}
void SoftBody::_changed_callback(Object *p_changed, const char *p_prop) {
prepare_physics_server();
_reset_points_offsets();
#ifdef TOOLS_ENABLED
if (p_changed == this) {
update_configuration_warning();
}
#endif
}
void SoftBody::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_ENTER_WORLD: {
if (Engine::get_singleton()->is_editor_hint()) {
add_change_receptor(this);
}
RID space = get_world()->get_space();
PhysicsServer::get_singleton()->soft_body_set_space(physics_rid, space);
prepare_physics_server();
} break;
case NOTIFICATION_READY: {
if (!parent_collision_ignore.is_empty())
add_collision_exception_with(get_node(parent_collision_ignore));
} break;
case NOTIFICATION_TRANSFORM_CHANGED: {
if (Engine::get_singleton()->is_editor_hint()) {
_reset_points_offsets();
return;
}
PhysicsServer::get_singleton()->soft_body_set_transform(physics_rid, get_global_transform());
set_notify_transform(false);
// Required to be top level with Transform at center of world in order to modify VisualServer only to support custom Transform
set_as_toplevel(true);
set_transform(Transform());
set_notify_transform(true);
} break;
case NOTIFICATION_VISIBILITY_CHANGED: {
_update_pickable();
} break;
case NOTIFICATION_EXIT_WORLD: {
PhysicsServer::get_singleton()->soft_body_set_space(physics_rid, RID());
} break;
}
#ifdef TOOLS_ENABLED
if (p_what == NOTIFICATION_LOCAL_TRANSFORM_CHANGED) {
if (Engine::get_singleton()->is_editor_hint()) {
update_configuration_warning();
}
}
#endif
}
void SoftBody::_bind_methods() {
ClassDB::bind_method(D_METHOD("_draw_soft_mesh"), &SoftBody::_draw_soft_mesh);
ClassDB::bind_method(D_METHOD("set_collision_mask", "collision_mask"), &SoftBody::set_collision_mask);
ClassDB::bind_method(D_METHOD("get_collision_mask"), &SoftBody::get_collision_mask);
ClassDB::bind_method(D_METHOD("set_collision_layer", "collision_layer"), &SoftBody::set_collision_layer);
ClassDB::bind_method(D_METHOD("get_collision_layer"), &SoftBody::get_collision_layer);
ClassDB::bind_method(D_METHOD("set_collision_mask_bit", "bit", "value"), &SoftBody::set_collision_mask_bit);
ClassDB::bind_method(D_METHOD("get_collision_mask_bit", "bit"), &SoftBody::get_collision_mask_bit);
ClassDB::bind_method(D_METHOD("set_collision_layer_bit", "bit", "value"), &SoftBody::set_collision_layer_bit);
ClassDB::bind_method(D_METHOD("get_collision_layer_bit", "bit"), &SoftBody::get_collision_layer_bit);
ClassDB::bind_method(D_METHOD("set_parent_collision_ignore", "parent_collision_ignore"), &SoftBody::set_parent_collision_ignore);
ClassDB::bind_method(D_METHOD("get_parent_collision_ignore"), &SoftBody::get_parent_collision_ignore);
ClassDB::bind_method(D_METHOD("get_collision_exceptions"), &SoftBody::get_collision_exceptions);
ClassDB::bind_method(D_METHOD("add_collision_exception_with", "body"), &SoftBody::add_collision_exception_with);
ClassDB::bind_method(D_METHOD("remove_collision_exception_with", "body"), &SoftBody::remove_collision_exception_with);
ClassDB::bind_method(D_METHOD("set_simulation_precision", "simulation_precision"), &SoftBody::set_simulation_precision);
ClassDB::bind_method(D_METHOD("get_simulation_precision"), &SoftBody::get_simulation_precision);
ClassDB::bind_method(D_METHOD("set_total_mass", "mass"), &SoftBody::set_total_mass);
ClassDB::bind_method(D_METHOD("get_total_mass"), &SoftBody::get_total_mass);
ClassDB::bind_method(D_METHOD("set_linear_stiffness", "linear_stiffness"), &SoftBody::set_linear_stiffness);
ClassDB::bind_method(D_METHOD("get_linear_stiffness"), &SoftBody::get_linear_stiffness);
ClassDB::bind_method(D_METHOD("set_areaAngular_stiffness", "areaAngular_stiffness"), &SoftBody::set_areaAngular_stiffness);
ClassDB::bind_method(D_METHOD("get_areaAngular_stiffness"), &SoftBody::get_areaAngular_stiffness);
ClassDB::bind_method(D_METHOD("set_volume_stiffness", "volume_stiffness"), &SoftBody::set_volume_stiffness);
ClassDB::bind_method(D_METHOD("get_volume_stiffness"), &SoftBody::get_volume_stiffness);
ClassDB::bind_method(D_METHOD("set_pressure_coefficient", "pressure_coefficient"), &SoftBody::set_pressure_coefficient);
ClassDB::bind_method(D_METHOD("get_pressure_coefficient"), &SoftBody::get_pressure_coefficient);
ClassDB::bind_method(D_METHOD("set_pose_matching_coefficient", "pose_matching_coefficient"), &SoftBody::set_pose_matching_coefficient);
ClassDB::bind_method(D_METHOD("get_pose_matching_coefficient"), &SoftBody::get_pose_matching_coefficient);
ClassDB::bind_method(D_METHOD("set_damping_coefficient", "damping_coefficient"), &SoftBody::set_damping_coefficient);
ClassDB::bind_method(D_METHOD("get_damping_coefficient"), &SoftBody::get_damping_coefficient);
ClassDB::bind_method(D_METHOD("set_drag_coefficient", "drag_coefficient"), &SoftBody::set_drag_coefficient);
ClassDB::bind_method(D_METHOD("get_drag_coefficient"), &SoftBody::get_drag_coefficient);
ClassDB::bind_method(D_METHOD("set_ray_pickable", "ray_pickable"), &SoftBody::set_ray_pickable);
ClassDB::bind_method(D_METHOD("is_ray_pickable"), &SoftBody::is_ray_pickable);
ADD_GROUP("Collision", "collision_");
ADD_PROPERTY(PropertyInfo(Variant::INT, "collision_layer", PROPERTY_HINT_LAYERS_3D_PHYSICS), "set_collision_layer", "get_collision_layer");
ADD_PROPERTY(PropertyInfo(Variant::INT, "collision_mask", PROPERTY_HINT_LAYERS_3D_PHYSICS), "set_collision_mask", "get_collision_mask");
ADD_PROPERTY(PropertyInfo(Variant::NODE_PATH, "parent_collision_ignore", PROPERTY_HINT_PROPERTY_OF_VARIANT_TYPE, "Parent collision object"), "set_parent_collision_ignore", "get_parent_collision_ignore");
ADD_PROPERTY(PropertyInfo(Variant::INT, "simulation_precision", PROPERTY_HINT_RANGE, "1,100,1"), "set_simulation_precision", "get_simulation_precision");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "total_mass", PROPERTY_HINT_RANGE, "0.01,10000,1"), "set_total_mass", "get_total_mass");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "linear_stiffness", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_linear_stiffness", "get_linear_stiffness");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "areaAngular_stiffness", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_areaAngular_stiffness", "get_areaAngular_stiffness");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "volume_stiffness", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_volume_stiffness", "get_volume_stiffness");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "pressure_coefficient"), "set_pressure_coefficient", "get_pressure_coefficient");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "damping_coefficient", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_damping_coefficient", "get_damping_coefficient");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "drag_coefficient", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_drag_coefficient", "get_drag_coefficient");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "pose_matching_coefficient", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_pose_matching_coefficient", "get_pose_matching_coefficient");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "ray_pickable"), "set_ray_pickable", "is_ray_pickable");
}
String SoftBody::get_configuration_warning() const {
String warning = MeshInstance::get_configuration_warning();
if (get_mesh().is_null()) {
if (!warning.empty())
warning += "\n\n";
warning += TTR("This body will be ignored until you set a mesh.");
}
Transform t = get_transform();
if ((ABS(t.basis.get_axis(0).length() - 1.0) > 0.05 || ABS(t.basis.get_axis(1).length() - 1.0) > 0.05 || ABS(t.basis.get_axis(2).length() - 1.0) > 0.05)) {
if (!warning.empty())
warning += "\n\n";
warning += TTR("Size changes to SoftBody will be overridden by the physics engine when running.\nChange the size in children collision shapes instead.");
}
return warning;
}
void SoftBody::_update_physics_server() {
if (!simulation_started)
return;
_update_cache_pin_points_datas();
// Submit bone attachment
const int pinned_points_indices_size = pinned_points.size();
const PinnedPoint *r = pinned_points.ptr();
for (int i = 0; i < pinned_points_indices_size; ++i) {
if (r[i].spatial_attachment) {
PhysicsServer::get_singleton()->soft_body_move_point(physics_rid, r[i].point_index, r[i].spatial_attachment->get_global_transform().xform(r[i].offset));
}
}
}
void SoftBody::_draw_soft_mesh() {
if (get_mesh().is_null())
return;
if (!visual_server_handler.is_ready()) {
visual_server_handler.prepare(get_mesh()->get_rid(), 0);
/// Necessary in order to render the mesh correctly (Soft body nodes are in global space)
simulation_started = true;
call_deferred("set_as_toplevel", true);
call_deferred("set_transform", Transform());
}
_update_physics_server();
visual_server_handler.open();
PhysicsServer::get_singleton()->soft_body_update_visual_server(physics_rid, &visual_server_handler);
visual_server_handler.close();
visual_server_handler.commit_changes();
}
void SoftBody::prepare_physics_server() {
if (Engine::get_singleton()->is_editor_hint()) {
if (get_mesh().is_valid())
PhysicsServer::get_singleton()->soft_body_set_mesh(physics_rid, get_mesh());
else
PhysicsServer::get_singleton()->soft_body_set_mesh(physics_rid, NULL);
return;
}
if (get_mesh().is_valid()) {
become_mesh_owner();
PhysicsServer::get_singleton()->soft_body_set_mesh(physics_rid, get_mesh());
VS::get_singleton()->connect("frame_pre_draw", this, "_draw_soft_mesh");
} else {
PhysicsServer::get_singleton()->soft_body_set_mesh(physics_rid, NULL);
if (VS::get_singleton()->is_connected("frame_pre_draw", this, "_draw_soft_mesh")) {
VS::get_singleton()->disconnect("frame_pre_draw", this, "_draw_soft_mesh");
}
}
}
void SoftBody::become_mesh_owner() {
if (mesh.is_null())
return;
if (!mesh_owner) {
mesh_owner = true;
Vector<Ref<Material> > copy_materials;
copy_materials.append_array(materials);
ERR_FAIL_COND(!mesh->get_surface_count());
// Get current mesh array and create new mesh array with necessary flag for softbody
Array surface_arrays = mesh->surface_get_arrays(0);
Array surface_blend_arrays = mesh->surface_get_blend_shape_arrays(0);
Dictionary surface_lods = mesh->surface_get_lods(0);
uint32_t surface_format = mesh->surface_get_format(0);
surface_format &= ~(Mesh::ARRAY_COMPRESS_NORMAL);
surface_format |= Mesh::ARRAY_FLAG_USE_DYNAMIC_UPDATE;
Ref<ArrayMesh> soft_mesh;
soft_mesh.instance();
soft_mesh->add_surface_from_arrays(Mesh::PRIMITIVE_TRIANGLES, surface_arrays, surface_blend_arrays, surface_lods, surface_format);
soft_mesh->surface_set_material(0, mesh->surface_get_material(0));
set_mesh(soft_mesh);
for (int i = copy_materials.size() - 1; 0 <= i; --i) {
set_surface_material(i, copy_materials[i]);
}
}
}
void SoftBody::set_collision_mask(uint32_t p_mask) {
collision_mask = p_mask;
PhysicsServer::get_singleton()->soft_body_set_collision_mask(physics_rid, p_mask);
}
uint32_t SoftBody::get_collision_mask() const {
return collision_mask;
}
void SoftBody::set_collision_layer(uint32_t p_layer) {
collision_layer = p_layer;
PhysicsServer::get_singleton()->soft_body_set_collision_layer(physics_rid, p_layer);
}
uint32_t SoftBody::get_collision_layer() const {
return collision_layer;
}
void SoftBody::set_collision_mask_bit(int p_bit, bool p_value) {
uint32_t mask = get_collision_mask();
if (p_value)
mask |= 1 << p_bit;
else
mask &= ~(1 << p_bit);
set_collision_mask(mask);
}
bool SoftBody::get_collision_mask_bit(int p_bit) const {
return get_collision_mask() & (1 << p_bit);
}
void SoftBody::set_collision_layer_bit(int p_bit, bool p_value) {
uint32_t layer = get_collision_layer();
if (p_value)
layer |= 1 << p_bit;
else
layer &= ~(1 << p_bit);
set_collision_layer(layer);
}
bool SoftBody::get_collision_layer_bit(int p_bit) const {
return get_collision_layer() & (1 << p_bit);
}
void SoftBody::set_parent_collision_ignore(const NodePath &p_parent_collision_ignore) {
parent_collision_ignore = p_parent_collision_ignore;
}
const NodePath &SoftBody::get_parent_collision_ignore() const {
return parent_collision_ignore;
}
void SoftBody::set_pinned_points_indices(Vector<SoftBody::PinnedPoint> p_pinned_points_indices) {
pinned_points = p_pinned_points_indices;
for (int i = pinned_points.size() - 1; 0 <= i; --i) {
pin_point(p_pinned_points_indices[i].point_index, true);
}
}
Vector<SoftBody::PinnedPoint> SoftBody::get_pinned_points_indices() {
return pinned_points;
}
Array SoftBody::get_collision_exceptions() {
List<RID> exceptions;
PhysicsServer::get_singleton()->soft_body_get_collision_exceptions(physics_rid, &exceptions);
Array ret;
for (List<RID>::Element *E = exceptions.front(); E; E = E->next()) {
RID body = E->get();
ObjectID instance_id = PhysicsServer::get_singleton()->body_get_object_instance_id(body);
Object *obj = ObjectDB::get_instance(instance_id);
PhysicsBody *physics_body = Object::cast_to<PhysicsBody>(obj);
ret.append(physics_body);
}
return ret;
}
void SoftBody::add_collision_exception_with(Node *p_node) {
ERR_FAIL_NULL(p_node);
CollisionObject *collision_object = Object::cast_to<CollisionObject>(p_node);
ERR_FAIL_COND_MSG(!collision_object, "Collision exception only works between two CollisionObject.");
PhysicsServer::get_singleton()->soft_body_add_collision_exception(physics_rid, collision_object->get_rid());
}
void SoftBody::remove_collision_exception_with(Node *p_node) {
ERR_FAIL_NULL(p_node);
CollisionObject *collision_object = Object::cast_to<CollisionObject>(p_node);
ERR_FAIL_COND_MSG(!collision_object, "Collision exception only works between two CollisionObject.");
PhysicsServer::get_singleton()->soft_body_remove_collision_exception(physics_rid, collision_object->get_rid());
}
int SoftBody::get_simulation_precision() {
return PhysicsServer::get_singleton()->soft_body_get_simulation_precision(physics_rid);
}
void SoftBody::set_simulation_precision(int p_simulation_precision) {
PhysicsServer::get_singleton()->soft_body_set_simulation_precision(physics_rid, p_simulation_precision);
}
real_t SoftBody::get_total_mass() {
return PhysicsServer::get_singleton()->soft_body_get_total_mass(physics_rid);
}
void SoftBody::set_total_mass(real_t p_total_mass) {
PhysicsServer::get_singleton()->soft_body_set_total_mass(physics_rid, p_total_mass);
}
void SoftBody::set_linear_stiffness(real_t p_linear_stiffness) {
PhysicsServer::get_singleton()->soft_body_set_linear_stiffness(physics_rid, p_linear_stiffness);
}
real_t SoftBody::get_linear_stiffness() {
return PhysicsServer::get_singleton()->soft_body_get_linear_stiffness(physics_rid);
}
void SoftBody::set_areaAngular_stiffness(real_t p_areaAngular_stiffness) {
PhysicsServer::get_singleton()->soft_body_set_areaAngular_stiffness(physics_rid, p_areaAngular_stiffness);
}
real_t SoftBody::get_areaAngular_stiffness() {
return PhysicsServer::get_singleton()->soft_body_get_areaAngular_stiffness(physics_rid);
}
void SoftBody::set_volume_stiffness(real_t p_volume_stiffness) {
PhysicsServer::get_singleton()->soft_body_set_volume_stiffness(physics_rid, p_volume_stiffness);
}
real_t SoftBody::get_volume_stiffness() {
return PhysicsServer::get_singleton()->soft_body_get_volume_stiffness(physics_rid);
}
real_t SoftBody::get_pressure_coefficient() {
return PhysicsServer::get_singleton()->soft_body_get_pressure_coefficient(physics_rid);
}
void SoftBody::set_pose_matching_coefficient(real_t p_pose_matching_coefficient) {
PhysicsServer::get_singleton()->soft_body_set_pose_matching_coefficient(physics_rid, p_pose_matching_coefficient);
}
real_t SoftBody::get_pose_matching_coefficient() {
return PhysicsServer::get_singleton()->soft_body_get_pose_matching_coefficient(physics_rid);
}
void SoftBody::set_pressure_coefficient(real_t p_pressure_coefficient) {
PhysicsServer::get_singleton()->soft_body_set_pressure_coefficient(physics_rid, p_pressure_coefficient);
}
real_t SoftBody::get_damping_coefficient() {
return PhysicsServer::get_singleton()->soft_body_get_damping_coefficient(physics_rid);
}
void SoftBody::set_damping_coefficient(real_t p_damping_coefficient) {
PhysicsServer::get_singleton()->soft_body_set_damping_coefficient(physics_rid, p_damping_coefficient);
}
real_t SoftBody::get_drag_coefficient() {
return PhysicsServer::get_singleton()->soft_body_get_drag_coefficient(physics_rid);
}
void SoftBody::set_drag_coefficient(real_t p_drag_coefficient) {
PhysicsServer::get_singleton()->soft_body_set_drag_coefficient(physics_rid, p_drag_coefficient);
}
Vector3 SoftBody::get_point_transform(int p_point_index) {
return PhysicsServer::get_singleton()->soft_body_get_point_global_position(physics_rid, p_point_index);
}
void SoftBody::pin_point_toggle(int p_point_index) {
pin_point(p_point_index, !(-1 != _has_pinned_point(p_point_index)));
}
void SoftBody::pin_point(int p_point_index, bool pin, const NodePath &p_spatial_attachment_path) {
_pin_point_on_physics_server(p_point_index, pin);
if (pin) {
_add_pinned_point(p_point_index, p_spatial_attachment_path);
} else {
_remove_pinned_point(p_point_index);
}
}
bool SoftBody::is_point_pinned(int p_point_index) const {
return -1 != _has_pinned_point(p_point_index);
}
void SoftBody::set_ray_pickable(bool p_ray_pickable) {
ray_pickable = p_ray_pickable;
_update_pickable();
}
bool SoftBody::is_ray_pickable() const {
return ray_pickable;
}
SoftBody::SoftBody() :
physics_rid(PhysicsServer::get_singleton()->soft_body_create()),
mesh_owner(false),
collision_mask(1),
collision_layer(1),
simulation_started(false),
pinned_points_cache_dirty(true),
ray_pickable(true) {
PhysicsServer::get_singleton()->body_attach_object_instance_id(physics_rid, get_instance_id());
}
SoftBody::~SoftBody() {
PhysicsServer::get_singleton()->free(physics_rid);
}
void SoftBody::reset_softbody_pin() {
PhysicsServer::get_singleton()->soft_body_remove_all_pinned_points(physics_rid);
const PinnedPoint *pps = pinned_points.ptr();
for (int i = pinned_points.size() - 1; 0 < i; --i) {
PhysicsServer::get_singleton()->soft_body_pin_point(physics_rid, pps[i].point_index, true);
}
}
void SoftBody::_make_cache_dirty() {
pinned_points_cache_dirty = true;
}
void SoftBody::_update_cache_pin_points_datas() {
if (!pinned_points_cache_dirty)
return;
pinned_points_cache_dirty = false;
PinnedPoint *w = pinned_points.ptrw();
for (int i = pinned_points.size() - 1; 0 <= i; --i) {
if (!w[i].spatial_attachment_path.is_empty()) {
w[i].spatial_attachment = Object::cast_to<Spatial>(get_node(w[i].spatial_attachment_path));
}
if (!w[i].spatial_attachment) {
ERR_PRINT("Spatial node not defined in the pinned point, Softbody undefined behaviour!");
}
}
}
void SoftBody::_pin_point_on_physics_server(int p_point_index, bool pin) {
PhysicsServer::get_singleton()->soft_body_pin_point(physics_rid, p_point_index, pin);
}
void SoftBody::_add_pinned_point(int p_point_index, const NodePath &p_spatial_attachment_path) {
SoftBody::PinnedPoint *pinned_point;
if (-1 == _get_pinned_point(p_point_index, pinned_point)) {
// Create new
PinnedPoint pp;
pp.point_index = p_point_index;
pp.spatial_attachment_path = p_spatial_attachment_path;
if (!p_spatial_attachment_path.is_empty() && has_node(p_spatial_attachment_path)) {
pp.spatial_attachment = Object::cast_to<Spatial>(get_node(p_spatial_attachment_path));
pp.offset = (pp.spatial_attachment->get_global_transform().affine_inverse() * get_global_transform()).xform(PhysicsServer::get_singleton()->soft_body_get_point_global_position(physics_rid, pp.point_index));
}
pinned_points.push_back(pp);
} else {
pinned_point->point_index = p_point_index;
pinned_point->spatial_attachment_path = p_spatial_attachment_path;
if (!p_spatial_attachment_path.is_empty() && has_node(p_spatial_attachment_path)) {
pinned_point->spatial_attachment = Object::cast_to<Spatial>(get_node(p_spatial_attachment_path));
pinned_point->offset = (pinned_point->spatial_attachment->get_global_transform().affine_inverse() * get_global_transform()).xform(PhysicsServer::get_singleton()->soft_body_get_point_global_position(physics_rid, pinned_point->point_index));
}
}
}
void SoftBody::_reset_points_offsets() {
if (!Engine::get_singleton()->is_editor_hint())
return;
const PinnedPoint *r = pinned_points.ptr();
PinnedPoint *w = pinned_points.ptrw();
for (int i = pinned_points.size() - 1; 0 <= i; --i) {
if (!r[i].spatial_attachment)
w[i].spatial_attachment = Object::cast_to<Spatial>(get_node(r[i].spatial_attachment_path));
if (!r[i].spatial_attachment)
continue;
w[i].offset = (r[i].spatial_attachment->get_global_transform().affine_inverse() * get_global_transform()).xform(PhysicsServer::get_singleton()->soft_body_get_point_global_position(physics_rid, r[i].point_index));
}
}
void SoftBody::_remove_pinned_point(int p_point_index) {
const int id(_has_pinned_point(p_point_index));
if (-1 != id) {
pinned_points.remove(id);
}
}
int SoftBody::_get_pinned_point(int p_point_index, SoftBody::PinnedPoint *&r_point) const {
const int id = _has_pinned_point(p_point_index);
if (-1 == id) {
r_point = NULL;
return -1;
} else {
r_point = const_cast<SoftBody::PinnedPoint *>(&pinned_points.ptr()[id]);
return id;
}
}
int SoftBody::_has_pinned_point(int p_point_index) const {
const PinnedPoint *r = pinned_points.ptr();
for (int i = pinned_points.size() - 1; 0 <= i; --i) {
if (p_point_index == r[i].point_index) {
return i;
}
}
return -1;
}
|