1/**************************************************************************/
2/* cpu_particles_2d.cpp */
3/**************************************************************************/
4/* This file is part of: */
5/* GODOT ENGINE */
6/* https://godotengine.org */
7/**************************************************************************/
8/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
9/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
10/* */
11/* Permission is hereby granted, free of charge, to any person obtaining */
12/* a copy of this software and associated documentation files (the */
13/* "Software"), to deal in the Software without restriction, including */
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16/* permit persons to whom the Software is furnished to do so, subject to */
17/* the following conditions: */
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19/* The above copyright notice and this permission notice shall be */
20/* included in all copies or substantial portions of the Software. */
21/* */
22/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
23/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
24/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
25/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
26/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
27/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
28/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
29/**************************************************************************/
30
31#include "cpu_particles_2d.h"
32
33#include "scene/2d/gpu_particles_2d.h"
34#include "scene/resources/atlas_texture.h"
35#include "scene/resources/curve_texture.h"
36#include "scene/resources/gradient_texture.h"
37#include "scene/resources/particle_process_material.h"
38#include "scene/scene_string_names.h"
39
40void CPUParticles2D::set_emitting(bool p_emitting) {
41 if (emitting == p_emitting) {
42 return;
43 }
44
45 emitting = p_emitting;
46 if (emitting) {
47 active = true;
48 set_process_internal(true);
49 }
50}
51
52void CPUParticles2D::set_amount(int p_amount) {
53 ERR_FAIL_COND_MSG(p_amount < 1, "Amount of particles must be greater than 0.");
54
55 particles.resize(p_amount);
56 {
57 Particle *w = particles.ptrw();
58
59 for (int i = 0; i < p_amount; i++) {
60 w[i].active = false;
61 }
62 }
63
64 particle_data.resize((8 + 4 + 4) * p_amount);
65 RS::get_singleton()->multimesh_allocate_data(multimesh, p_amount, RS::MULTIMESH_TRANSFORM_2D, true, true);
66
67 particle_order.resize(p_amount);
68}
69
70void CPUParticles2D::set_lifetime(double p_lifetime) {
71 ERR_FAIL_COND_MSG(p_lifetime <= 0, "Particles lifetime must be greater than 0.");
72 lifetime = p_lifetime;
73}
74
75void CPUParticles2D::set_one_shot(bool p_one_shot) {
76 one_shot = p_one_shot;
77}
78
79void CPUParticles2D::set_pre_process_time(double p_time) {
80 pre_process_time = p_time;
81}
82
83void CPUParticles2D::set_explosiveness_ratio(real_t p_ratio) {
84 explosiveness_ratio = p_ratio;
85}
86
87void CPUParticles2D::set_randomness_ratio(real_t p_ratio) {
88 randomness_ratio = p_ratio;
89}
90
91void CPUParticles2D::set_lifetime_randomness(double p_random) {
92 lifetime_randomness = p_random;
93}
94
95void CPUParticles2D::set_use_local_coordinates(bool p_enable) {
96 local_coords = p_enable;
97 set_notify_transform(!p_enable);
98}
99
100void CPUParticles2D::set_speed_scale(double p_scale) {
101 speed_scale = p_scale;
102}
103
104bool CPUParticles2D::is_emitting() const {
105 return emitting;
106}
107
108int CPUParticles2D::get_amount() const {
109 return particles.size();
110}
111
112double CPUParticles2D::get_lifetime() const {
113 return lifetime;
114}
115
116bool CPUParticles2D::get_one_shot() const {
117 return one_shot;
118}
119
120double CPUParticles2D::get_pre_process_time() const {
121 return pre_process_time;
122}
123
124real_t CPUParticles2D::get_explosiveness_ratio() const {
125 return explosiveness_ratio;
126}
127
128real_t CPUParticles2D::get_randomness_ratio() const {
129 return randomness_ratio;
130}
131
132double CPUParticles2D::get_lifetime_randomness() const {
133 return lifetime_randomness;
134}
135
136bool CPUParticles2D::get_use_local_coordinates() const {
137 return local_coords;
138}
139
140double CPUParticles2D::get_speed_scale() const {
141 return speed_scale;
142}
143
144void CPUParticles2D::set_draw_order(DrawOrder p_order) {
145 draw_order = p_order;
146}
147
148CPUParticles2D::DrawOrder CPUParticles2D::get_draw_order() const {
149 return draw_order;
150}
151
152void CPUParticles2D::_update_mesh_texture() {
153 Size2 tex_size;
154 if (texture.is_valid()) {
155 tex_size = texture->get_size();
156 } else {
157 tex_size = Size2(1, 1);
158 }
159
160 Vector<Vector2> vertices = {
161 -tex_size * 0.5,
162 -tex_size * 0.5 + Vector2(tex_size.x, 0),
163 -tex_size * 0.5 + tex_size,
164 -tex_size * 0.5 + Vector2(0, tex_size.y)
165 };
166
167 Vector<Vector2> uvs;
168 AtlasTexture *atlas_texure = Object::cast_to<AtlasTexture>(*texture);
169 if (atlas_texure && atlas_texure->get_atlas().is_valid()) {
170 Rect2 region_rect = atlas_texure->get_region();
171 Size2 atlas_size = atlas_texure->get_atlas()->get_size();
172 uvs.push_back(Vector2(region_rect.position.x / atlas_size.x, region_rect.position.y / atlas_size.y));
173 uvs.push_back(Vector2((region_rect.position.x + region_rect.size.x) / atlas_size.x, region_rect.position.y / atlas_size.y));
174 uvs.push_back(Vector2((region_rect.position.x + region_rect.size.x) / atlas_size.x, (region_rect.position.y + region_rect.size.y) / atlas_size.y));
175 uvs.push_back(Vector2(region_rect.position.x / atlas_size.x, (region_rect.position.y + region_rect.size.y) / atlas_size.y));
176 } else {
177 uvs.push_back(Vector2(0, 0));
178 uvs.push_back(Vector2(1, 0));
179 uvs.push_back(Vector2(1, 1));
180 uvs.push_back(Vector2(0, 1));
181 }
182
183 Vector<Color> colors = {
184 Color(1, 1, 1, 1),
185 Color(1, 1, 1, 1),
186 Color(1, 1, 1, 1),
187 Color(1, 1, 1, 1)
188 };
189
190 Vector<int> indices = { 0, 1, 2, 2, 3, 0 };
191
192 Array arr;
193 arr.resize(RS::ARRAY_MAX);
194 arr[RS::ARRAY_VERTEX] = vertices;
195 arr[RS::ARRAY_TEX_UV] = uvs;
196 arr[RS::ARRAY_COLOR] = colors;
197 arr[RS::ARRAY_INDEX] = indices;
198
199 RS::get_singleton()->mesh_clear(mesh);
200 RS::get_singleton()->mesh_add_surface_from_arrays(mesh, RS::PRIMITIVE_TRIANGLES, arr);
201}
202
203void CPUParticles2D::set_texture(const Ref<Texture2D> &p_texture) {
204 if (p_texture == texture) {
205 return;
206 }
207
208 if (texture.is_valid()) {
209 texture->disconnect_changed(callable_mp(this, &CPUParticles2D::_texture_changed));
210 }
211
212 texture = p_texture;
213
214 if (texture.is_valid()) {
215 texture->connect_changed(callable_mp(this, &CPUParticles2D::_texture_changed));
216 }
217
218 queue_redraw();
219 _update_mesh_texture();
220}
221
222void CPUParticles2D::_texture_changed() {
223 if (texture.is_valid()) {
224 queue_redraw();
225 _update_mesh_texture();
226 }
227}
228
229Ref<Texture2D> CPUParticles2D::get_texture() const {
230 return texture;
231}
232
233void CPUParticles2D::set_fixed_fps(int p_count) {
234 fixed_fps = p_count;
235}
236
237int CPUParticles2D::get_fixed_fps() const {
238 return fixed_fps;
239}
240
241void CPUParticles2D::set_fractional_delta(bool p_enable) {
242 fractional_delta = p_enable;
243}
244
245bool CPUParticles2D::get_fractional_delta() const {
246 return fractional_delta;
247}
248
249PackedStringArray CPUParticles2D::get_configuration_warnings() const {
250 PackedStringArray warnings = Node2D::get_configuration_warnings();
251
252 CanvasItemMaterial *mat = Object::cast_to<CanvasItemMaterial>(get_material().ptr());
253
254 if (get_material().is_null() || (mat && !mat->get_particles_animation())) {
255 if (get_param_max(PARAM_ANIM_SPEED) != 0.0 || get_param_max(PARAM_ANIM_OFFSET) != 0.0 ||
256 get_param_curve(PARAM_ANIM_SPEED).is_valid() || get_param_curve(PARAM_ANIM_OFFSET).is_valid()) {
257 warnings.push_back(RTR("CPUParticles2D animation requires the usage of a CanvasItemMaterial with \"Particles Animation\" enabled."));
258 }
259 }
260
261 return warnings;
262}
263
264void CPUParticles2D::restart() {
265 time = 0;
266 frame_remainder = 0;
267 cycle = 0;
268 emitting = false;
269
270 {
271 int pc = particles.size();
272 Particle *w = particles.ptrw();
273
274 for (int i = 0; i < pc; i++) {
275 w[i].active = false;
276 }
277 }
278
279 set_emitting(true);
280}
281
282void CPUParticles2D::set_direction(Vector2 p_direction) {
283 direction = p_direction;
284}
285
286Vector2 CPUParticles2D::get_direction() const {
287 return direction;
288}
289
290void CPUParticles2D::set_spread(real_t p_spread) {
291 spread = p_spread;
292}
293
294real_t CPUParticles2D::get_spread() const {
295 return spread;
296}
297
298void CPUParticles2D::set_param_min(Parameter p_param, real_t p_value) {
299 ERR_FAIL_INDEX(p_param, PARAM_MAX);
300
301 parameters_min[p_param] = p_value;
302 if (parameters_min[p_param] > parameters_max[p_param]) {
303 set_param_max(p_param, p_value);
304 }
305}
306
307real_t CPUParticles2D::get_param_min(Parameter p_param) const {
308 ERR_FAIL_INDEX_V(p_param, PARAM_MAX, 0);
309
310 return parameters_min[p_param];
311}
312
313void CPUParticles2D::set_param_max(Parameter p_param, real_t p_value) {
314 ERR_FAIL_INDEX(p_param, PARAM_MAX);
315
316 parameters_max[p_param] = p_value;
317 if (parameters_min[p_param] > parameters_max[p_param]) {
318 set_param_min(p_param, p_value);
319 }
320
321 update_configuration_warnings();
322}
323
324real_t CPUParticles2D::get_param_max(Parameter p_param) const {
325 ERR_FAIL_INDEX_V(p_param, PARAM_MAX, 0);
326
327 return parameters_max[p_param];
328}
329
330static void _adjust_curve_range(const Ref<Curve> &p_curve, real_t p_min, real_t p_max) {
331 Ref<Curve> curve = p_curve;
332 if (!curve.is_valid()) {
333 return;
334 }
335
336 curve->ensure_default_setup(p_min, p_max);
337}
338
339void CPUParticles2D::set_param_curve(Parameter p_param, const Ref<Curve> &p_curve) {
340 ERR_FAIL_INDEX(p_param, PARAM_MAX);
341
342 curve_parameters[p_param] = p_curve;
343
344 switch (p_param) {
345 case PARAM_INITIAL_LINEAR_VELOCITY: {
346 //do none for this one
347 } break;
348 case PARAM_ANGULAR_VELOCITY: {
349 _adjust_curve_range(p_curve, -360, 360);
350 } break;
351 case PARAM_ORBIT_VELOCITY: {
352 _adjust_curve_range(p_curve, -500, 500);
353 } break;
354 case PARAM_LINEAR_ACCEL: {
355 _adjust_curve_range(p_curve, -200, 200);
356 } break;
357 case PARAM_RADIAL_ACCEL: {
358 _adjust_curve_range(p_curve, -200, 200);
359 } break;
360 case PARAM_TANGENTIAL_ACCEL: {
361 _adjust_curve_range(p_curve, -200, 200);
362 } break;
363 case PARAM_DAMPING: {
364 _adjust_curve_range(p_curve, 0, 100);
365 } break;
366 case PARAM_ANGLE: {
367 _adjust_curve_range(p_curve, -360, 360);
368 } break;
369 case PARAM_SCALE: {
370 } break;
371 case PARAM_HUE_VARIATION: {
372 _adjust_curve_range(p_curve, -1, 1);
373 } break;
374 case PARAM_ANIM_SPEED: {
375 _adjust_curve_range(p_curve, 0, 200);
376 } break;
377 case PARAM_ANIM_OFFSET: {
378 } break;
379 default: {
380 }
381 }
382
383 update_configuration_warnings();
384}
385
386Ref<Curve> CPUParticles2D::get_param_curve(Parameter p_param) const {
387 ERR_FAIL_INDEX_V(p_param, PARAM_MAX, Ref<Curve>());
388
389 return curve_parameters[p_param];
390}
391
392void CPUParticles2D::set_color(const Color &p_color) {
393 color = p_color;
394}
395
396Color CPUParticles2D::get_color() const {
397 return color;
398}
399
400void CPUParticles2D::set_color_ramp(const Ref<Gradient> &p_ramp) {
401 color_ramp = p_ramp;
402}
403
404Ref<Gradient> CPUParticles2D::get_color_ramp() const {
405 return color_ramp;
406}
407
408void CPUParticles2D::set_color_initial_ramp(const Ref<Gradient> &p_ramp) {
409 color_initial_ramp = p_ramp;
410}
411
412Ref<Gradient> CPUParticles2D::get_color_initial_ramp() const {
413 return color_initial_ramp;
414}
415
416void CPUParticles2D::set_particle_flag(ParticleFlags p_particle_flag, bool p_enable) {
417 ERR_FAIL_INDEX(p_particle_flag, PARTICLE_FLAG_MAX);
418 particle_flags[p_particle_flag] = p_enable;
419}
420
421bool CPUParticles2D::get_particle_flag(ParticleFlags p_particle_flag) const {
422 ERR_FAIL_INDEX_V(p_particle_flag, PARTICLE_FLAG_MAX, false);
423 return particle_flags[p_particle_flag];
424}
425
426void CPUParticles2D::set_emission_shape(EmissionShape p_shape) {
427 ERR_FAIL_INDEX(p_shape, EMISSION_SHAPE_MAX);
428 emission_shape = p_shape;
429 notify_property_list_changed();
430}
431
432void CPUParticles2D::set_emission_sphere_radius(real_t p_radius) {
433 emission_sphere_radius = p_radius;
434}
435
436void CPUParticles2D::set_emission_rect_extents(Vector2 p_extents) {
437 emission_rect_extents = p_extents;
438}
439
440void CPUParticles2D::set_emission_points(const Vector<Vector2> &p_points) {
441 emission_points = p_points;
442}
443
444void CPUParticles2D::set_emission_normals(const Vector<Vector2> &p_normals) {
445 emission_normals = p_normals;
446}
447
448void CPUParticles2D::set_emission_colors(const Vector<Color> &p_colors) {
449 emission_colors = p_colors;
450}
451
452real_t CPUParticles2D::get_emission_sphere_radius() const {
453 return emission_sphere_radius;
454}
455
456Vector2 CPUParticles2D::get_emission_rect_extents() const {
457 return emission_rect_extents;
458}
459
460Vector<Vector2> CPUParticles2D::get_emission_points() const {
461 return emission_points;
462}
463
464Vector<Vector2> CPUParticles2D::get_emission_normals() const {
465 return emission_normals;
466}
467
468Vector<Color> CPUParticles2D::get_emission_colors() const {
469 return emission_colors;
470}
471
472CPUParticles2D::EmissionShape CPUParticles2D::get_emission_shape() const {
473 return emission_shape;
474}
475
476void CPUParticles2D::set_gravity(const Vector2 &p_gravity) {
477 gravity = p_gravity;
478}
479
480Vector2 CPUParticles2D::get_gravity() const {
481 return gravity;
482}
483
484void CPUParticles2D::set_scale_curve_x(Ref<Curve> p_scale_curve) {
485 scale_curve_x = p_scale_curve;
486}
487
488void CPUParticles2D::set_scale_curve_y(Ref<Curve> p_scale_curve) {
489 scale_curve_y = p_scale_curve;
490}
491
492void CPUParticles2D::set_split_scale(bool p_split_scale) {
493 split_scale = p_split_scale;
494 notify_property_list_changed();
495}
496
497Ref<Curve> CPUParticles2D::get_scale_curve_x() const {
498 return scale_curve_x;
499}
500
501Ref<Curve> CPUParticles2D::get_scale_curve_y() const {
502 return scale_curve_y;
503}
504
505bool CPUParticles2D::get_split_scale() {
506 return split_scale;
507}
508
509void CPUParticles2D::_validate_property(PropertyInfo &p_property) const {
510 if (p_property.name == "emission_sphere_radius" && (emission_shape != EMISSION_SHAPE_SPHERE && emission_shape != EMISSION_SHAPE_SPHERE_SURFACE)) {
511 p_property.usage = PROPERTY_USAGE_NONE;
512 }
513
514 if (p_property.name == "emission_rect_extents" && emission_shape != EMISSION_SHAPE_RECTANGLE) {
515 p_property.usage = PROPERTY_USAGE_NONE;
516 }
517
518 if ((p_property.name == "emission_point_texture" || p_property.name == "emission_color_texture") && (emission_shape < EMISSION_SHAPE_POINTS)) {
519 p_property.usage = PROPERTY_USAGE_NONE;
520 }
521
522 if (p_property.name == "emission_normals" && emission_shape != EMISSION_SHAPE_DIRECTED_POINTS) {
523 p_property.usage = PROPERTY_USAGE_NONE;
524 }
525
526 if (p_property.name == "emission_points" && emission_shape != EMISSION_SHAPE_POINTS && emission_shape != EMISSION_SHAPE_DIRECTED_POINTS) {
527 p_property.usage = PROPERTY_USAGE_NONE;
528 }
529
530 if (p_property.name == "emission_colors" && emission_shape != EMISSION_SHAPE_POINTS && emission_shape != EMISSION_SHAPE_DIRECTED_POINTS) {
531 p_property.usage = PROPERTY_USAGE_NONE;
532 }
533 if (p_property.name.begins_with("scale_curve_") && !split_scale) {
534 p_property.usage = PROPERTY_USAGE_NONE;
535 }
536}
537
538static uint32_t idhash(uint32_t x) {
539 x = ((x >> uint32_t(16)) ^ x) * uint32_t(0x45d9f3b);
540 x = ((x >> uint32_t(16)) ^ x) * uint32_t(0x45d9f3b);
541 x = (x >> uint32_t(16)) ^ x;
542 return x;
543}
544
545static real_t rand_from_seed(uint32_t &seed) {
546 int k;
547 int s = int(seed);
548 if (s == 0) {
549 s = 305420679;
550 }
551 k = s / 127773;
552 s = 16807 * (s - k * 127773) - 2836 * k;
553 if (s < 0) {
554 s += 2147483647;
555 }
556 seed = uint32_t(s);
557 return (seed % uint32_t(65536)) / 65535.0;
558}
559
560void CPUParticles2D::_update_internal() {
561 if (particles.size() == 0 || !is_visible_in_tree()) {
562 _set_do_redraw(false);
563 return;
564 }
565
566 double delta = get_process_delta_time();
567 if (!active && !emitting) {
568 set_process_internal(false);
569 _set_do_redraw(false);
570
571 //reset variables
572 time = 0;
573 frame_remainder = 0;
574 cycle = 0;
575 return;
576 }
577 _set_do_redraw(true);
578
579 if (time == 0 && pre_process_time > 0.0) {
580 double frame_time;
581 if (fixed_fps > 0) {
582 frame_time = 1.0 / fixed_fps;
583 } else {
584 frame_time = 1.0 / 30.0;
585 }
586
587 double todo = pre_process_time;
588
589 while (todo >= 0) {
590 _particles_process(frame_time);
591 todo -= frame_time;
592 }
593 }
594
595 if (fixed_fps > 0) {
596 double frame_time = 1.0 / fixed_fps;
597 double decr = frame_time;
598
599 double ldelta = delta;
600 if (ldelta > 0.1) { //avoid recursive stalls if fps goes below 10
601 ldelta = 0.1;
602 } else if (ldelta <= 0.0) { //unlikely but..
603 ldelta = 0.001;
604 }
605 double todo = frame_remainder + ldelta;
606
607 while (todo >= frame_time) {
608 _particles_process(frame_time);
609 todo -= decr;
610 }
611
612 frame_remainder = todo;
613
614 } else {
615 _particles_process(delta);
616 }
617
618 _update_particle_data_buffer();
619}
620
621void CPUParticles2D::_particles_process(double p_delta) {
622 p_delta *= speed_scale;
623
624 int pcount = particles.size();
625 Particle *w = particles.ptrw();
626
627 Particle *parray = w;
628
629 double prev_time = time;
630 time += p_delta;
631 if (time > lifetime) {
632 time = Math::fmod(time, lifetime);
633 cycle++;
634 if (one_shot && cycle > 0) {
635 set_emitting(false);
636 notify_property_list_changed();
637 }
638 }
639
640 Transform2D emission_xform;
641 Transform2D velocity_xform;
642 if (!local_coords) {
643 emission_xform = get_global_transform();
644 velocity_xform = emission_xform;
645 velocity_xform[2] = Vector2();
646 }
647
648 double system_phase = time / lifetime;
649
650 bool should_be_active = false;
651 for (int i = 0; i < pcount; i++) {
652 Particle &p = parray[i];
653
654 if (!emitting && !p.active) {
655 continue;
656 }
657
658 double local_delta = p_delta;
659
660 // The phase is a ratio between 0 (birth) and 1 (end of life) for each particle.
661 // While we use time in tests later on, for randomness we use the phase as done in the
662 // original shader code, and we later multiply by lifetime to get the time.
663 double restart_phase = double(i) / double(pcount);
664
665 if (randomness_ratio > 0.0) {
666 uint32_t seed = cycle;
667 if (restart_phase >= system_phase) {
668 seed -= uint32_t(1);
669 }
670 seed *= uint32_t(pcount);
671 seed += uint32_t(i);
672 double random = double(idhash(seed) % uint32_t(65536)) / 65536.0;
673 restart_phase += randomness_ratio * random * 1.0 / double(pcount);
674 }
675
676 restart_phase *= (1.0 - explosiveness_ratio);
677 double restart_time = restart_phase * lifetime;
678 bool restart = false;
679
680 if (time > prev_time) {
681 // restart_time >= prev_time is used so particles emit in the first frame they are processed
682
683 if (restart_time >= prev_time && restart_time < time) {
684 restart = true;
685 if (fractional_delta) {
686 local_delta = time - restart_time;
687 }
688 }
689
690 } else if (local_delta > 0.0) {
691 if (restart_time >= prev_time) {
692 restart = true;
693 if (fractional_delta) {
694 local_delta = lifetime - restart_time + time;
695 }
696
697 } else if (restart_time < time) {
698 restart = true;
699 if (fractional_delta) {
700 local_delta = time - restart_time;
701 }
702 }
703 }
704
705 if (p.time * (1.0 - explosiveness_ratio) > p.lifetime) {
706 restart = true;
707 }
708
709 float tv = 0.0;
710
711 if (restart) {
712 if (!emitting) {
713 p.active = false;
714 continue;
715 }
716 p.active = true;
717
718 /*real_t tex_linear_velocity = 0;
719 if (curve_parameters[PARAM_INITIAL_LINEAR_VELOCITY].is_valid()) {
720 tex_linear_velocity = curve_parameters[PARAM_INITIAL_LINEAR_VELOCITY]->sample(0);
721 }*/
722
723 real_t tex_angle = 1.0;
724 if (curve_parameters[PARAM_ANGLE].is_valid()) {
725 tex_angle = curve_parameters[PARAM_ANGLE]->sample(tv);
726 }
727
728 real_t tex_anim_offset = 1.0;
729 if (curve_parameters[PARAM_ANGLE].is_valid()) {
730 tex_anim_offset = curve_parameters[PARAM_ANGLE]->sample(tv);
731 }
732
733 p.seed = Math::rand();
734
735 p.angle_rand = Math::randf();
736 p.scale_rand = Math::randf();
737 p.hue_rot_rand = Math::randf();
738 p.anim_offset_rand = Math::randf();
739
740 if (color_initial_ramp.is_valid()) {
741 p.start_color_rand = color_initial_ramp->get_color_at_offset(Math::randf());
742 } else {
743 p.start_color_rand = Color(1, 1, 1, 1);
744 }
745
746 real_t angle1_rad = direction.angle() + Math::deg_to_rad((Math::randf() * 2.0 - 1.0) * spread);
747 Vector2 rot = Vector2(Math::cos(angle1_rad), Math::sin(angle1_rad));
748 p.velocity = rot * Math::lerp(parameters_min[PARAM_INITIAL_LINEAR_VELOCITY], parameters_max[PARAM_INITIAL_LINEAR_VELOCITY], (real_t)Math::randf());
749
750 real_t base_angle = tex_angle * Math::lerp(parameters_min[PARAM_ANGLE], parameters_max[PARAM_ANGLE], p.angle_rand);
751 p.rotation = Math::deg_to_rad(base_angle);
752
753 p.custom[0] = 0.0; // unused
754 p.custom[1] = 0.0; // phase [0..1]
755 p.custom[2] = tex_anim_offset * Math::lerp(parameters_min[PARAM_ANIM_OFFSET], parameters_max[PARAM_ANIM_OFFSET], p.anim_offset_rand);
756 p.custom[3] = 0.0;
757 p.transform = Transform2D();
758 p.time = 0;
759 p.lifetime = lifetime * (1.0 - Math::randf() * lifetime_randomness);
760 p.base_color = Color(1, 1, 1, 1);
761
762 switch (emission_shape) {
763 case EMISSION_SHAPE_POINT: {
764 //do none
765 } break;
766 case EMISSION_SHAPE_SPHERE: {
767 real_t t = Math_TAU * Math::randf();
768 real_t radius = emission_sphere_radius * Math::randf();
769 p.transform[2] = Vector2(Math::cos(t), Math::sin(t)) * radius;
770 } break;
771 case EMISSION_SHAPE_SPHERE_SURFACE: {
772 real_t s = Math::randf(), t = Math_TAU * Math::randf();
773 real_t radius = emission_sphere_radius * Math::sqrt(1.0 - s * s);
774 p.transform[2] = Vector2(Math::cos(t), Math::sin(t)) * radius;
775 } break;
776 case EMISSION_SHAPE_RECTANGLE: {
777 p.transform[2] = Vector2(Math::randf() * 2.0 - 1.0, Math::randf() * 2.0 - 1.0) * emission_rect_extents;
778 } break;
779 case EMISSION_SHAPE_POINTS:
780 case EMISSION_SHAPE_DIRECTED_POINTS: {
781 int pc = emission_points.size();
782 if (pc == 0) {
783 break;
784 }
785
786 int random_idx = Math::rand() % pc;
787
788 p.transform[2] = emission_points.get(random_idx);
789
790 if (emission_shape == EMISSION_SHAPE_DIRECTED_POINTS && emission_normals.size() == pc) {
791 Vector2 normal = emission_normals.get(random_idx);
792 Transform2D m2;
793 m2.columns[0] = normal;
794 m2.columns[1] = normal.orthogonal();
795 p.velocity = m2.basis_xform(p.velocity);
796 }
797
798 if (emission_colors.size() == pc) {
799 p.base_color = emission_colors.get(random_idx);
800 }
801 } break;
802 case EMISSION_SHAPE_MAX: { // Max value for validity check.
803 break;
804 }
805 }
806
807 if (!local_coords) {
808 p.velocity = velocity_xform.xform(p.velocity);
809 p.transform = emission_xform * p.transform;
810 }
811
812 } else if (!p.active) {
813 continue;
814 } else if (p.time > p.lifetime) {
815 p.active = false;
816 tv = 1.0;
817 } else {
818 uint32_t alt_seed = p.seed;
819
820 p.time += local_delta;
821 p.custom[1] = p.time / lifetime;
822 tv = p.time / p.lifetime;
823
824 real_t tex_linear_velocity = 1.0;
825 if (curve_parameters[PARAM_INITIAL_LINEAR_VELOCITY].is_valid()) {
826 tex_linear_velocity = curve_parameters[PARAM_INITIAL_LINEAR_VELOCITY]->sample(tv);
827 }
828
829 real_t tex_orbit_velocity = 1.0;
830 if (curve_parameters[PARAM_ORBIT_VELOCITY].is_valid()) {
831 tex_orbit_velocity = curve_parameters[PARAM_ORBIT_VELOCITY]->sample(tv);
832 }
833
834 real_t tex_angular_velocity = 1.0;
835 if (curve_parameters[PARAM_ANGULAR_VELOCITY].is_valid()) {
836 tex_angular_velocity = curve_parameters[PARAM_ANGULAR_VELOCITY]->sample(tv);
837 }
838
839 real_t tex_linear_accel = 1.0;
840 if (curve_parameters[PARAM_LINEAR_ACCEL].is_valid()) {
841 tex_linear_accel = curve_parameters[PARAM_LINEAR_ACCEL]->sample(tv);
842 }
843
844 real_t tex_tangential_accel = 1.0;
845 if (curve_parameters[PARAM_TANGENTIAL_ACCEL].is_valid()) {
846 tex_tangential_accel = curve_parameters[PARAM_TANGENTIAL_ACCEL]->sample(tv);
847 }
848
849 real_t tex_radial_accel = 1.0;
850 if (curve_parameters[PARAM_RADIAL_ACCEL].is_valid()) {
851 tex_radial_accel = curve_parameters[PARAM_RADIAL_ACCEL]->sample(tv);
852 }
853
854 real_t tex_damping = 1.0;
855 if (curve_parameters[PARAM_DAMPING].is_valid()) {
856 tex_damping = curve_parameters[PARAM_DAMPING]->sample(tv);
857 }
858
859 real_t tex_angle = 1.0;
860 if (curve_parameters[PARAM_ANGLE].is_valid()) {
861 tex_angle = curve_parameters[PARAM_ANGLE]->sample(tv);
862 }
863 real_t tex_anim_speed = 1.0;
864 if (curve_parameters[PARAM_ANIM_SPEED].is_valid()) {
865 tex_anim_speed = curve_parameters[PARAM_ANIM_SPEED]->sample(tv);
866 }
867
868 real_t tex_anim_offset = 1.0;
869 if (curve_parameters[PARAM_ANIM_OFFSET].is_valid()) {
870 tex_anim_offset = curve_parameters[PARAM_ANIM_OFFSET]->sample(tv);
871 }
872
873 Vector2 force = gravity;
874 Vector2 pos = p.transform[2];
875
876 //apply linear acceleration
877 force += p.velocity.length() > 0.0 ? p.velocity.normalized() * tex_linear_accel * Math::lerp(parameters_min[PARAM_LINEAR_ACCEL], parameters_max[PARAM_LINEAR_ACCEL], rand_from_seed(alt_seed)) : Vector2();
878 //apply radial acceleration
879 Vector2 org = emission_xform[2];
880 Vector2 diff = pos - org;
881 force += diff.length() > 0.0 ? diff.normalized() * (tex_radial_accel)*Math::lerp(parameters_min[PARAM_RADIAL_ACCEL], parameters_max[PARAM_RADIAL_ACCEL], rand_from_seed(alt_seed)) : Vector2();
882 //apply tangential acceleration;
883 Vector2 yx = Vector2(diff.y, diff.x);
884 force += yx.length() > 0.0 ? yx.normalized() * (tex_tangential_accel * Math::lerp(parameters_min[PARAM_TANGENTIAL_ACCEL], parameters_max[PARAM_TANGENTIAL_ACCEL], rand_from_seed(alt_seed))) : Vector2();
885 //apply attractor forces
886 p.velocity += force * local_delta;
887 //orbit velocity
888 real_t orbit_amount = tex_orbit_velocity * Math::lerp(parameters_min[PARAM_ORBIT_VELOCITY], parameters_max[PARAM_ORBIT_VELOCITY], rand_from_seed(alt_seed));
889 if (orbit_amount != 0.0) {
890 real_t ang = orbit_amount * local_delta * Math_TAU;
891 // Not sure why the ParticleProcessMaterial code uses a clockwise rotation matrix,
892 // but we use -ang here to reproduce its behavior.
893 Transform2D rot = Transform2D(-ang, Vector2());
894 p.transform[2] -= diff;
895 p.transform[2] += rot.basis_xform(diff);
896 }
897 if (curve_parameters[PARAM_INITIAL_LINEAR_VELOCITY].is_valid()) {
898 p.velocity = p.velocity.normalized() * tex_linear_velocity;
899 }
900
901 if (parameters_max[PARAM_DAMPING] + tex_damping > 0.0) {
902 real_t v = p.velocity.length();
903 real_t damp = tex_damping * Math::lerp(parameters_min[PARAM_DAMPING], parameters_max[PARAM_DAMPING], rand_from_seed(alt_seed));
904 v -= damp * local_delta;
905 if (v < 0.0) {
906 p.velocity = Vector2();
907 } else {
908 p.velocity = p.velocity.normalized() * v;
909 }
910 }
911 real_t base_angle = (tex_angle)*Math::lerp(parameters_min[PARAM_ANGLE], parameters_max[PARAM_ANGLE], p.angle_rand);
912 base_angle += p.custom[1] * lifetime * tex_angular_velocity * Math::lerp(parameters_min[PARAM_ANGULAR_VELOCITY], parameters_max[PARAM_ANGULAR_VELOCITY], rand_from_seed(alt_seed));
913 p.rotation = Math::deg_to_rad(base_angle); //angle
914 p.custom[2] = tex_anim_offset * Math::lerp(parameters_min[PARAM_ANIM_OFFSET], parameters_max[PARAM_ANIM_OFFSET], p.anim_offset_rand) + tv * tex_anim_speed * Math::lerp(parameters_min[PARAM_ANIM_SPEED], parameters_max[PARAM_ANIM_SPEED], rand_from_seed(alt_seed));
915 }
916 //apply color
917 //apply hue rotation
918
919 Vector2 tex_scale = Vector2(1.0, 1.0);
920 if (split_scale) {
921 if (scale_curve_x.is_valid()) {
922 tex_scale.x = scale_curve_x->sample(tv);
923 } else {
924 tex_scale.x = 1.0;
925 }
926 if (scale_curve_y.is_valid()) {
927 tex_scale.y = scale_curve_y->sample(tv);
928 } else {
929 tex_scale.y = 1.0;
930 }
931 } else {
932 if (curve_parameters[PARAM_SCALE].is_valid()) {
933 real_t tmp_scale = curve_parameters[PARAM_SCALE]->sample(tv);
934 tex_scale.x = tmp_scale;
935 tex_scale.y = tmp_scale;
936 }
937 }
938
939 real_t tex_hue_variation = 0.0;
940 if (curve_parameters[PARAM_HUE_VARIATION].is_valid()) {
941 tex_hue_variation = curve_parameters[PARAM_HUE_VARIATION]->sample(tv);
942 }
943
944 real_t hue_rot_angle = (tex_hue_variation)*Math_TAU * Math::lerp(parameters_min[PARAM_HUE_VARIATION], parameters_max[PARAM_HUE_VARIATION], p.hue_rot_rand);
945 real_t hue_rot_c = Math::cos(hue_rot_angle);
946 real_t hue_rot_s = Math::sin(hue_rot_angle);
947
948 Basis hue_rot_mat;
949 {
950 Basis mat1(0.299, 0.587, 0.114, 0.299, 0.587, 0.114, 0.299, 0.587, 0.114);
951 Basis mat2(0.701, -0.587, -0.114, -0.299, 0.413, -0.114, -0.300, -0.588, 0.886);
952 Basis mat3(0.168, 0.330, -0.497, -0.328, 0.035, 0.292, 1.250, -1.050, -0.203);
953
954 for (int j = 0; j < 3; j++) {
955 hue_rot_mat[j] = mat1[j] + mat2[j] * hue_rot_c + mat3[j] * hue_rot_s;
956 }
957 }
958
959 if (color_ramp.is_valid()) {
960 p.color = color_ramp->get_color_at_offset(tv) * color;
961 } else {
962 p.color = color;
963 }
964
965 Vector3 color_rgb = hue_rot_mat.xform_inv(Vector3(p.color.r, p.color.g, p.color.b));
966 p.color.r = color_rgb.x;
967 p.color.g = color_rgb.y;
968 p.color.b = color_rgb.z;
969
970 p.color *= p.base_color * p.start_color_rand;
971
972 if (particle_flags[PARTICLE_FLAG_ALIGN_Y_TO_VELOCITY]) {
973 if (p.velocity.length() > 0.0) {
974 p.transform.columns[1] = p.velocity.normalized();
975 p.transform.columns[0] = p.transform.columns[1].orthogonal();
976 }
977
978 } else {
979 p.transform.columns[0] = Vector2(Math::cos(p.rotation), -Math::sin(p.rotation));
980 p.transform.columns[1] = Vector2(Math::sin(p.rotation), Math::cos(p.rotation));
981 }
982
983 //scale by scale
984 Vector2 base_scale = tex_scale * Math::lerp(parameters_min[PARAM_SCALE], parameters_max[PARAM_SCALE], p.scale_rand);
985 if (base_scale.x < 0.00001) {
986 base_scale.x = 0.00001;
987 }
988 if (base_scale.y < 0.00001) {
989 base_scale.y = 0.00001;
990 }
991 p.transform.columns[0] *= base_scale.x;
992 p.transform.columns[1] *= base_scale.y;
993
994 p.transform[2] += p.velocity * local_delta;
995
996 should_be_active = true;
997 }
998 if (!Math::is_equal_approx(time, 0.0) && active && !should_be_active) {
999 active = false;
1000 emit_signal(SceneStringNames::get_singleton()->finished);
1001 }
1002}
1003
1004void CPUParticles2D::_update_particle_data_buffer() {
1005 MutexLock lock(update_mutex);
1006
1007 int pc = particles.size();
1008
1009 int *ow;
1010 int *order = nullptr;
1011
1012 float *w = particle_data.ptrw();
1013 const Particle *r = particles.ptr();
1014 float *ptr = w;
1015
1016 if (draw_order != DRAW_ORDER_INDEX) {
1017 ow = particle_order.ptrw();
1018 order = ow;
1019
1020 for (int i = 0; i < pc; i++) {
1021 order[i] = i;
1022 }
1023 if (draw_order == DRAW_ORDER_LIFETIME) {
1024 SortArray<int, SortLifetime> sorter;
1025 sorter.compare.particles = r;
1026 sorter.sort(order, pc);
1027 }
1028 }
1029
1030 for (int i = 0; i < pc; i++) {
1031 int idx = order ? order[i] : i;
1032
1033 Transform2D t = r[idx].transform;
1034
1035 if (!local_coords) {
1036 t = inv_emission_transform * t;
1037 }
1038
1039 if (r[idx].active) {
1040 ptr[0] = t.columns[0][0];
1041 ptr[1] = t.columns[1][0];
1042 ptr[2] = 0;
1043 ptr[3] = t.columns[2][0];
1044 ptr[4] = t.columns[0][1];
1045 ptr[5] = t.columns[1][1];
1046 ptr[6] = 0;
1047 ptr[7] = t.columns[2][1];
1048
1049 } else {
1050 memset(ptr, 0, sizeof(float) * 8);
1051 }
1052
1053 Color c = r[idx].color;
1054
1055 ptr[8] = c.r;
1056 ptr[9] = c.g;
1057 ptr[10] = c.b;
1058 ptr[11] = c.a;
1059
1060 ptr[12] = r[idx].custom[0];
1061 ptr[13] = r[idx].custom[1];
1062 ptr[14] = r[idx].custom[2];
1063 ptr[15] = r[idx].custom[3];
1064
1065 ptr += 16;
1066 }
1067}
1068
1069void CPUParticles2D::_set_do_redraw(bool p_do_redraw) {
1070 if (do_redraw == p_do_redraw) {
1071 return;
1072 }
1073 do_redraw = p_do_redraw;
1074
1075 {
1076 MutexLock lock(update_mutex);
1077
1078 if (do_redraw) {
1079 RS::get_singleton()->connect("frame_pre_draw", callable_mp(this, &CPUParticles2D::_update_render_thread));
1080 RS::get_singleton()->canvas_item_set_update_when_visible(get_canvas_item(), true);
1081
1082 RS::get_singleton()->multimesh_set_visible_instances(multimesh, -1);
1083 } else {
1084 if (RS::get_singleton()->is_connected("frame_pre_draw", callable_mp(this, &CPUParticles2D::_update_render_thread))) {
1085 RS::get_singleton()->disconnect("frame_pre_draw", callable_mp(this, &CPUParticles2D::_update_render_thread));
1086 }
1087 RS::get_singleton()->canvas_item_set_update_when_visible(get_canvas_item(), false);
1088
1089 RS::get_singleton()->multimesh_set_visible_instances(multimesh, 0);
1090 }
1091 }
1092
1093 queue_redraw(); // redraw to update render list
1094}
1095
1096void CPUParticles2D::_update_render_thread() {
1097 MutexLock lock(update_mutex);
1098
1099 RS::get_singleton()->multimesh_set_buffer(multimesh, particle_data);
1100}
1101
1102void CPUParticles2D::_notification(int p_what) {
1103 switch (p_what) {
1104 case NOTIFICATION_ENTER_TREE: {
1105 set_process_internal(emitting);
1106 } break;
1107
1108 case NOTIFICATION_EXIT_TREE: {
1109 _set_do_redraw(false);
1110 } break;
1111
1112 case NOTIFICATION_DRAW: {
1113 // first update before rendering to avoid one frame delay after emitting starts
1114 if (emitting && (time == 0)) {
1115 _update_internal();
1116 }
1117
1118 if (!do_redraw) {
1119 return; // don't add to render list
1120 }
1121
1122 RID texrid;
1123 if (texture.is_valid()) {
1124 texrid = texture->get_rid();
1125 }
1126
1127 RS::get_singleton()->canvas_item_add_multimesh(get_canvas_item(), multimesh, texrid);
1128 } break;
1129
1130 case NOTIFICATION_INTERNAL_PROCESS: {
1131 _update_internal();
1132 } break;
1133
1134 case NOTIFICATION_TRANSFORM_CHANGED: {
1135 inv_emission_transform = get_global_transform().affine_inverse();
1136
1137 if (!local_coords) {
1138 int pc = particles.size();
1139
1140 float *w = particle_data.ptrw();
1141 const Particle *r = particles.ptr();
1142 float *ptr = w;
1143
1144 for (int i = 0; i < pc; i++) {
1145 Transform2D t = inv_emission_transform * r[i].transform;
1146
1147 if (r[i].active) {
1148 ptr[0] = t.columns[0][0];
1149 ptr[1] = t.columns[1][0];
1150 ptr[2] = 0;
1151 ptr[3] = t.columns[2][0];
1152 ptr[4] = t.columns[0][1];
1153 ptr[5] = t.columns[1][1];
1154 ptr[6] = 0;
1155 ptr[7] = t.columns[2][1];
1156
1157 } else {
1158 memset(ptr, 0, sizeof(float) * 8);
1159 }
1160
1161 ptr += 16;
1162 }
1163 }
1164 } break;
1165 }
1166}
1167
1168void CPUParticles2D::convert_from_particles(Node *p_particles) {
1169 GPUParticles2D *gpu_particles = Object::cast_to<GPUParticles2D>(p_particles);
1170 ERR_FAIL_NULL_MSG(gpu_particles, "Only GPUParticles2D nodes can be converted to CPUParticles2D.");
1171
1172 set_emitting(gpu_particles->is_emitting());
1173 set_amount(gpu_particles->get_amount());
1174 set_lifetime(gpu_particles->get_lifetime());
1175 set_one_shot(gpu_particles->get_one_shot());
1176 set_pre_process_time(gpu_particles->get_pre_process_time());
1177 set_explosiveness_ratio(gpu_particles->get_explosiveness_ratio());
1178 set_randomness_ratio(gpu_particles->get_randomness_ratio());
1179 set_use_local_coordinates(gpu_particles->get_use_local_coordinates());
1180 set_fixed_fps(gpu_particles->get_fixed_fps());
1181 set_fractional_delta(gpu_particles->get_fractional_delta());
1182 set_speed_scale(gpu_particles->get_speed_scale());
1183 set_draw_order(DrawOrder(gpu_particles->get_draw_order()));
1184 set_texture(gpu_particles->get_texture());
1185
1186 Ref<Material> mat = gpu_particles->get_material();
1187 if (mat.is_valid()) {
1188 set_material(mat);
1189 }
1190
1191 Ref<ParticleProcessMaterial> proc_mat = gpu_particles->get_process_material();
1192 if (proc_mat.is_null()) {
1193 return;
1194 }
1195
1196 Vector3 dir = proc_mat->get_direction();
1197 set_direction(Vector2(dir.x, dir.y));
1198 set_spread(proc_mat->get_spread());
1199
1200 set_color(proc_mat->get_color());
1201
1202 Ref<GradientTexture1D> gt = proc_mat->get_color_ramp();
1203 if (gt.is_valid()) {
1204 set_color_ramp(gt->get_gradient());
1205 }
1206
1207 Ref<GradientTexture1D> gti = proc_mat->get_color_initial_ramp();
1208 if (gti.is_valid()) {
1209 set_color_initial_ramp(gti->get_gradient());
1210 }
1211
1212 set_particle_flag(PARTICLE_FLAG_ALIGN_Y_TO_VELOCITY, proc_mat->get_particle_flag(ParticleProcessMaterial::PARTICLE_FLAG_ALIGN_Y_TO_VELOCITY));
1213
1214 set_emission_shape(EmissionShape(proc_mat->get_emission_shape()));
1215 set_emission_sphere_radius(proc_mat->get_emission_sphere_radius());
1216 Vector2 rect_extents = Vector2(proc_mat->get_emission_box_extents().x, proc_mat->get_emission_box_extents().y);
1217 set_emission_rect_extents(rect_extents);
1218
1219 Ref<CurveXYZTexture> scale3D = proc_mat->get_param_texture(ParticleProcessMaterial::PARAM_SCALE);
1220 if (scale3D.is_valid()) {
1221 split_scale = true;
1222 scale_curve_x = scale3D->get_curve_x();
1223 scale_curve_y = scale3D->get_curve_y();
1224 }
1225 set_gravity(Vector2(proc_mat->get_gravity().x, proc_mat->get_gravity().y));
1226 set_lifetime_randomness(proc_mat->get_lifetime_randomness());
1227
1228#define CONVERT_PARAM(m_param) \
1229 set_param_min(m_param, proc_mat->get_param_min(ParticleProcessMaterial::m_param)); \
1230 { \
1231 Ref<CurveTexture> ctex = proc_mat->get_param_texture(ParticleProcessMaterial::m_param); \
1232 if (ctex.is_valid()) \
1233 set_param_curve(m_param, ctex->get_curve()); \
1234 } \
1235 set_param_max(m_param, proc_mat->get_param_max(ParticleProcessMaterial::m_param));
1236
1237 CONVERT_PARAM(PARAM_INITIAL_LINEAR_VELOCITY);
1238 CONVERT_PARAM(PARAM_ANGULAR_VELOCITY);
1239 CONVERT_PARAM(PARAM_ORBIT_VELOCITY);
1240 CONVERT_PARAM(PARAM_LINEAR_ACCEL);
1241 CONVERT_PARAM(PARAM_RADIAL_ACCEL);
1242 CONVERT_PARAM(PARAM_TANGENTIAL_ACCEL);
1243 CONVERT_PARAM(PARAM_DAMPING);
1244 CONVERT_PARAM(PARAM_ANGLE);
1245 CONVERT_PARAM(PARAM_SCALE);
1246 CONVERT_PARAM(PARAM_HUE_VARIATION);
1247 CONVERT_PARAM(PARAM_ANIM_SPEED);
1248 CONVERT_PARAM(PARAM_ANIM_OFFSET);
1249
1250#undef CONVERT_PARAM
1251}
1252
1253void CPUParticles2D::_bind_methods() {
1254 ClassDB::bind_method(D_METHOD("set_emitting", "emitting"), &CPUParticles2D::set_emitting);
1255 ClassDB::bind_method(D_METHOD("set_amount", "amount"), &CPUParticles2D::set_amount);
1256 ClassDB::bind_method(D_METHOD("set_lifetime", "secs"), &CPUParticles2D::set_lifetime);
1257 ClassDB::bind_method(D_METHOD("set_one_shot", "enable"), &CPUParticles2D::set_one_shot);
1258 ClassDB::bind_method(D_METHOD("set_pre_process_time", "secs"), &CPUParticles2D::set_pre_process_time);
1259 ClassDB::bind_method(D_METHOD("set_explosiveness_ratio", "ratio"), &CPUParticles2D::set_explosiveness_ratio);
1260 ClassDB::bind_method(D_METHOD("set_randomness_ratio", "ratio"), &CPUParticles2D::set_randomness_ratio);
1261 ClassDB::bind_method(D_METHOD("set_lifetime_randomness", "random"), &CPUParticles2D::set_lifetime_randomness);
1262 ClassDB::bind_method(D_METHOD("set_use_local_coordinates", "enable"), &CPUParticles2D::set_use_local_coordinates);
1263 ClassDB::bind_method(D_METHOD("set_fixed_fps", "fps"), &CPUParticles2D::set_fixed_fps);
1264 ClassDB::bind_method(D_METHOD("set_fractional_delta", "enable"), &CPUParticles2D::set_fractional_delta);
1265 ClassDB::bind_method(D_METHOD("set_speed_scale", "scale"), &CPUParticles2D::set_speed_scale);
1266
1267 ClassDB::bind_method(D_METHOD("is_emitting"), &CPUParticles2D::is_emitting);
1268 ClassDB::bind_method(D_METHOD("get_amount"), &CPUParticles2D::get_amount);
1269 ClassDB::bind_method(D_METHOD("get_lifetime"), &CPUParticles2D::get_lifetime);
1270 ClassDB::bind_method(D_METHOD("get_one_shot"), &CPUParticles2D::get_one_shot);
1271 ClassDB::bind_method(D_METHOD("get_pre_process_time"), &CPUParticles2D::get_pre_process_time);
1272 ClassDB::bind_method(D_METHOD("get_explosiveness_ratio"), &CPUParticles2D::get_explosiveness_ratio);
1273 ClassDB::bind_method(D_METHOD("get_randomness_ratio"), &CPUParticles2D::get_randomness_ratio);
1274 ClassDB::bind_method(D_METHOD("get_lifetime_randomness"), &CPUParticles2D::get_lifetime_randomness);
1275 ClassDB::bind_method(D_METHOD("get_use_local_coordinates"), &CPUParticles2D::get_use_local_coordinates);
1276 ClassDB::bind_method(D_METHOD("get_fixed_fps"), &CPUParticles2D::get_fixed_fps);
1277 ClassDB::bind_method(D_METHOD("get_fractional_delta"), &CPUParticles2D::get_fractional_delta);
1278 ClassDB::bind_method(D_METHOD("get_speed_scale"), &CPUParticles2D::get_speed_scale);
1279
1280 ClassDB::bind_method(D_METHOD("set_draw_order", "order"), &CPUParticles2D::set_draw_order);
1281
1282 ClassDB::bind_method(D_METHOD("get_draw_order"), &CPUParticles2D::get_draw_order);
1283
1284 ClassDB::bind_method(D_METHOD("set_texture", "texture"), &CPUParticles2D::set_texture);
1285 ClassDB::bind_method(D_METHOD("get_texture"), &CPUParticles2D::get_texture);
1286
1287 ClassDB::bind_method(D_METHOD("restart"), &CPUParticles2D::restart);
1288
1289 ADD_PROPERTY(PropertyInfo(Variant::BOOL, "emitting"), "set_emitting", "is_emitting");
1290 ADD_PROPERTY(PropertyInfo(Variant::INT, "amount", PROPERTY_HINT_RANGE, "1,1000000,1,exp"), "set_amount", "get_amount");
1291 ADD_GROUP("Time", "");
1292 ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "lifetime", PROPERTY_HINT_RANGE, "0.01,600.0,0.01,or_greater,suffix:s"), "set_lifetime", "get_lifetime");
1293 ADD_PROPERTY(PropertyInfo(Variant::BOOL, "one_shot"), "set_one_shot", "get_one_shot");
1294 ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "preprocess", PROPERTY_HINT_RANGE, "0.00,600.0,0.01,suffix:s"), "set_pre_process_time", "get_pre_process_time");
1295 ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "speed_scale", PROPERTY_HINT_RANGE, "0,64,0.01"), "set_speed_scale", "get_speed_scale");
1296 ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "explosiveness", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_explosiveness_ratio", "get_explosiveness_ratio");
1297 ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "randomness", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_randomness_ratio", "get_randomness_ratio");
1298 ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "lifetime_randomness", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_lifetime_randomness", "get_lifetime_randomness");
1299 ADD_PROPERTY(PropertyInfo(Variant::INT, "fixed_fps", PROPERTY_HINT_RANGE, "0,1000,1,suffix:FPS"), "set_fixed_fps", "get_fixed_fps");
1300 ADD_PROPERTY(PropertyInfo(Variant::BOOL, "fract_delta"), "set_fractional_delta", "get_fractional_delta");
1301 ADD_GROUP("Drawing", "");
1302 // No visibility_rect property contrarily to Particles2D, it's updated automatically.
1303 ADD_PROPERTY(PropertyInfo(Variant::BOOL, "local_coords"), "set_use_local_coordinates", "get_use_local_coordinates");
1304 ADD_PROPERTY(PropertyInfo(Variant::INT, "draw_order", PROPERTY_HINT_ENUM, "Index,Lifetime"), "set_draw_order", "get_draw_order");
1305 ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "texture", PROPERTY_HINT_RESOURCE_TYPE, "Texture2D"), "set_texture", "get_texture");
1306
1307 BIND_ENUM_CONSTANT(DRAW_ORDER_INDEX);
1308 BIND_ENUM_CONSTANT(DRAW_ORDER_LIFETIME);
1309
1310 ////////////////////////////////
1311
1312 ClassDB::bind_method(D_METHOD("set_direction", "direction"), &CPUParticles2D::set_direction);
1313 ClassDB::bind_method(D_METHOD("get_direction"), &CPUParticles2D::get_direction);
1314
1315 ClassDB::bind_method(D_METHOD("set_spread", "spread"), &CPUParticles2D::set_spread);
1316 ClassDB::bind_method(D_METHOD("get_spread"), &CPUParticles2D::get_spread);
1317
1318 ClassDB::bind_method(D_METHOD("set_param_min", "param", "value"), &CPUParticles2D::set_param_min);
1319 ClassDB::bind_method(D_METHOD("get_param_min", "param"), &CPUParticles2D::get_param_min);
1320
1321 ClassDB::bind_method(D_METHOD("set_param_max", "param", "value"), &CPUParticles2D::set_param_max);
1322 ClassDB::bind_method(D_METHOD("get_param_max", "param"), &CPUParticles2D::get_param_max);
1323
1324 ClassDB::bind_method(D_METHOD("set_param_curve", "param", "curve"), &CPUParticles2D::set_param_curve);
1325 ClassDB::bind_method(D_METHOD("get_param_curve", "param"), &CPUParticles2D::get_param_curve);
1326
1327 ClassDB::bind_method(D_METHOD("set_color", "color"), &CPUParticles2D::set_color);
1328 ClassDB::bind_method(D_METHOD("get_color"), &CPUParticles2D::get_color);
1329
1330 ClassDB::bind_method(D_METHOD("set_color_ramp", "ramp"), &CPUParticles2D::set_color_ramp);
1331 ClassDB::bind_method(D_METHOD("get_color_ramp"), &CPUParticles2D::get_color_ramp);
1332
1333 ClassDB::bind_method(D_METHOD("set_color_initial_ramp", "ramp"), &CPUParticles2D::set_color_initial_ramp);
1334 ClassDB::bind_method(D_METHOD("get_color_initial_ramp"), &CPUParticles2D::get_color_initial_ramp);
1335
1336 ClassDB::bind_method(D_METHOD("set_particle_flag", "particle_flag", "enable"), &CPUParticles2D::set_particle_flag);
1337 ClassDB::bind_method(D_METHOD("get_particle_flag", "particle_flag"), &CPUParticles2D::get_particle_flag);
1338
1339 ClassDB::bind_method(D_METHOD("set_emission_shape", "shape"), &CPUParticles2D::set_emission_shape);
1340 ClassDB::bind_method(D_METHOD("get_emission_shape"), &CPUParticles2D::get_emission_shape);
1341
1342 ClassDB::bind_method(D_METHOD("set_emission_sphere_radius", "radius"), &CPUParticles2D::set_emission_sphere_radius);
1343 ClassDB::bind_method(D_METHOD("get_emission_sphere_radius"), &CPUParticles2D::get_emission_sphere_radius);
1344
1345 ClassDB::bind_method(D_METHOD("set_emission_rect_extents", "extents"), &CPUParticles2D::set_emission_rect_extents);
1346 ClassDB::bind_method(D_METHOD("get_emission_rect_extents"), &CPUParticles2D::get_emission_rect_extents);
1347
1348 ClassDB::bind_method(D_METHOD("set_emission_points", "array"), &CPUParticles2D::set_emission_points);
1349 ClassDB::bind_method(D_METHOD("get_emission_points"), &CPUParticles2D::get_emission_points);
1350
1351 ClassDB::bind_method(D_METHOD("set_emission_normals", "array"), &CPUParticles2D::set_emission_normals);
1352 ClassDB::bind_method(D_METHOD("get_emission_normals"), &CPUParticles2D::get_emission_normals);
1353
1354 ClassDB::bind_method(D_METHOD("set_emission_colors", "array"), &CPUParticles2D::set_emission_colors);
1355 ClassDB::bind_method(D_METHOD("get_emission_colors"), &CPUParticles2D::get_emission_colors);
1356
1357 ClassDB::bind_method(D_METHOD("get_gravity"), &CPUParticles2D::get_gravity);
1358 ClassDB::bind_method(D_METHOD("set_gravity", "accel_vec"), &CPUParticles2D::set_gravity);
1359
1360 ClassDB::bind_method(D_METHOD("get_split_scale"), &CPUParticles2D::get_split_scale);
1361 ClassDB::bind_method(D_METHOD("set_split_scale", "split_scale"), &CPUParticles2D::set_split_scale);
1362
1363 ClassDB::bind_method(D_METHOD("get_scale_curve_x"), &CPUParticles2D::get_scale_curve_x);
1364 ClassDB::bind_method(D_METHOD("set_scale_curve_x", "scale_curve"), &CPUParticles2D::set_scale_curve_x);
1365
1366 ClassDB::bind_method(D_METHOD("get_scale_curve_y"), &CPUParticles2D::get_scale_curve_y);
1367 ClassDB::bind_method(D_METHOD("set_scale_curve_y", "scale_curve"), &CPUParticles2D::set_scale_curve_y);
1368
1369 ClassDB::bind_method(D_METHOD("convert_from_particles", "particles"), &CPUParticles2D::convert_from_particles);
1370
1371 ADD_SIGNAL(MethodInfo("finished"));
1372
1373 ADD_GROUP("Emission Shape", "emission_");
1374 ADD_PROPERTY(PropertyInfo(Variant::INT, "emission_shape", PROPERTY_HINT_ENUM, "Point,Sphere,Sphere Surface,Rectangle,Points,Directed Points", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_UPDATE_ALL_IF_MODIFIED), "set_emission_shape", "get_emission_shape");
1375 ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "emission_sphere_radius", PROPERTY_HINT_RANGE, "0.01,128,0.01,suffix:px"), "set_emission_sphere_radius", "get_emission_sphere_radius");
1376 ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "emission_rect_extents", PROPERTY_HINT_NONE, "suffix:px"), "set_emission_rect_extents", "get_emission_rect_extents");
1377 ADD_PROPERTY(PropertyInfo(Variant::PACKED_VECTOR2_ARRAY, "emission_points"), "set_emission_points", "get_emission_points");
1378 ADD_PROPERTY(PropertyInfo(Variant::PACKED_VECTOR2_ARRAY, "emission_normals"), "set_emission_normals", "get_emission_normals");
1379 ADD_PROPERTY(PropertyInfo(Variant::PACKED_COLOR_ARRAY, "emission_colors"), "set_emission_colors", "get_emission_colors");
1380 ADD_GROUP("Particle Flags", "particle_flag_");
1381 ADD_PROPERTYI(PropertyInfo(Variant::BOOL, "particle_flag_align_y"), "set_particle_flag", "get_particle_flag", PARTICLE_FLAG_ALIGN_Y_TO_VELOCITY);
1382 ADD_GROUP("Direction", "");
1383 ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "direction"), "set_direction", "get_direction");
1384 ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "spread", PROPERTY_HINT_RANGE, "0,180,0.01"), "set_spread", "get_spread");
1385 ADD_GROUP("Gravity", "");
1386 ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "gravity", PROPERTY_HINT_NONE, U"suffix:px/s\u00B2"), "set_gravity", "get_gravity");
1387 ADD_GROUP("Initial Velocity", "initial_");
1388 ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "initial_velocity_min", PROPERTY_HINT_RANGE, "0,1000,0.01,or_greater,suffix:px/s"), "set_param_min", "get_param_min", PARAM_INITIAL_LINEAR_VELOCITY);
1389 ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "initial_velocity_max", PROPERTY_HINT_RANGE, "0,1000,0.01,or_greater,suffix:px/s"), "set_param_max", "get_param_max", PARAM_INITIAL_LINEAR_VELOCITY);
1390 ADD_GROUP("Angular Velocity", "angular_");
1391 ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "angular_velocity_min", PROPERTY_HINT_RANGE, "-720,720,0.01,or_less,or_greater"), "set_param_min", "get_param_min", PARAM_ANGULAR_VELOCITY);
1392 ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "angular_velocity_max", PROPERTY_HINT_RANGE, "-720,720,0.01,or_less,or_greater"), "set_param_max", "get_param_max", PARAM_ANGULAR_VELOCITY);
1393 ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "angular_velocity_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_ANGULAR_VELOCITY);
1394 ADD_GROUP("Orbit Velocity", "orbit_");
1395 ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "orbit_velocity_min", PROPERTY_HINT_RANGE, "-1000,1000,0.01,or_less,or_greater"), "set_param_min", "get_param_min", PARAM_ORBIT_VELOCITY);
1396 ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "orbit_velocity_max", PROPERTY_HINT_RANGE, "-1000,1000,0.01,or_less,or_greater"), "set_param_max", "get_param_max", PARAM_ORBIT_VELOCITY);
1397 ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "orbit_velocity_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_ORBIT_VELOCITY);
1398 ADD_GROUP("Linear Accel", "linear_");
1399 ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "linear_accel_min", PROPERTY_HINT_RANGE, "-100,100,0.01,or_less,or_greater"), "set_param_min", "get_param_min", PARAM_LINEAR_ACCEL);
1400 ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "linear_accel_max", PROPERTY_HINT_RANGE, "-100,100,0.01,or_less,or_greater"), "set_param_max", "get_param_max", PARAM_LINEAR_ACCEL);
1401 ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "linear_accel_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_LINEAR_ACCEL);
1402 ADD_GROUP("Radial Accel", "radial_");
1403 ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "radial_accel_min", PROPERTY_HINT_RANGE, "-100,100,0.01,or_less,or_greater"), "set_param_min", "get_param_min", PARAM_RADIAL_ACCEL);
1404 ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "radial_accel_max", PROPERTY_HINT_RANGE, "-100,100,0.01,or_less,or_greater"), "set_param_max", "get_param_max", PARAM_RADIAL_ACCEL);
1405 ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "radial_accel_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_RADIAL_ACCEL);
1406 ADD_GROUP("Tangential Accel", "tangential_");
1407 ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "tangential_accel_min", PROPERTY_HINT_RANGE, "-100,100,0.01,or_less,or_greater"), "set_param_min", "get_param_min", PARAM_TANGENTIAL_ACCEL);
1408 ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "tangential_accel_max", PROPERTY_HINT_RANGE, "-100,100,0.01,or_less,or_greater"), "set_param_max", "get_param_max", PARAM_TANGENTIAL_ACCEL);
1409 ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "tangential_accel_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_TANGENTIAL_ACCEL);
1410 ADD_GROUP("Damping", "");
1411 ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "damping_min", PROPERTY_HINT_RANGE, "0,100,0.001,or_greater"), "set_param_min", "get_param_min", PARAM_DAMPING);
1412 ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "damping_max", PROPERTY_HINT_RANGE, "0,100,0.001,or_greater"), "set_param_max", "get_param_max", PARAM_DAMPING);
1413 ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "damping_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_DAMPING);
1414 ADD_GROUP("Angle", "");
1415 ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "angle_min", PROPERTY_HINT_RANGE, "-720,720,0.1,or_less,or_greater,degrees"), "set_param_min", "get_param_min", PARAM_ANGLE);
1416 ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "angle_max", PROPERTY_HINT_RANGE, "-720,720,0.1,or_less,or_greater,degrees"), "set_param_max", "get_param_max", PARAM_ANGLE);
1417 ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "angle_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_ANGLE);
1418 ADD_GROUP("Scale", "");
1419 ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "scale_amount_min", PROPERTY_HINT_RANGE, "0,1000,0.01,or_greater"), "set_param_min", "get_param_min", PARAM_SCALE);
1420 ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "scale_amount_max", PROPERTY_HINT_RANGE, "0,1000,0.01,or_greater"), "set_param_max", "get_param_max", PARAM_SCALE);
1421 ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "scale_amount_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_SCALE);
1422 ADD_PROPERTY(PropertyInfo(Variant::BOOL, "split_scale"), "set_split_scale", "get_split_scale");
1423 ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "scale_curve_x", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_scale_curve_x", "get_scale_curve_x");
1424 ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "scale_curve_y", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_scale_curve_y", "get_scale_curve_y");
1425
1426 ADD_GROUP("Color", "");
1427 ADD_PROPERTY(PropertyInfo(Variant::COLOR, "color"), "set_color", "get_color");
1428 ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "color_ramp", PROPERTY_HINT_RESOURCE_TYPE, "Gradient"), "set_color_ramp", "get_color_ramp");
1429 ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "color_initial_ramp", PROPERTY_HINT_RESOURCE_TYPE, "Gradient"), "set_color_initial_ramp", "get_color_initial_ramp");
1430
1431 ADD_GROUP("Hue Variation", "hue_");
1432 ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "hue_variation_min", PROPERTY_HINT_RANGE, "-1,1,0.01"), "set_param_min", "get_param_min", PARAM_HUE_VARIATION);
1433 ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "hue_variation_max", PROPERTY_HINT_RANGE, "-1,1,0.01"), "set_param_max", "get_param_max", PARAM_HUE_VARIATION);
1434 ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "hue_variation_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_HUE_VARIATION);
1435 ADD_GROUP("Animation", "anim_");
1436 ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "anim_speed_min", PROPERTY_HINT_RANGE, "0,128,0.01,or_greater,or_less"), "set_param_min", "get_param_min", PARAM_ANIM_SPEED);
1437 ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "anim_speed_max", PROPERTY_HINT_RANGE, "0,128,0.01,or_greater,or_less"), "set_param_max", "get_param_max", PARAM_ANIM_SPEED);
1438 ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "anim_speed_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_ANIM_SPEED);
1439 ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "anim_offset_min", PROPERTY_HINT_RANGE, "0,1,0.0001"), "set_param_min", "get_param_min", PARAM_ANIM_OFFSET);
1440 ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "anim_offset_max", PROPERTY_HINT_RANGE, "0,1,0.0001"), "set_param_max", "get_param_max", PARAM_ANIM_OFFSET);
1441 ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "anim_offset_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_ANIM_OFFSET);
1442
1443 BIND_ENUM_CONSTANT(PARAM_INITIAL_LINEAR_VELOCITY);
1444 BIND_ENUM_CONSTANT(PARAM_ANGULAR_VELOCITY);
1445 BIND_ENUM_CONSTANT(PARAM_ORBIT_VELOCITY);
1446 BIND_ENUM_CONSTANT(PARAM_LINEAR_ACCEL);
1447 BIND_ENUM_CONSTANT(PARAM_RADIAL_ACCEL);
1448 BIND_ENUM_CONSTANT(PARAM_TANGENTIAL_ACCEL);
1449 BIND_ENUM_CONSTANT(PARAM_DAMPING);
1450 BIND_ENUM_CONSTANT(PARAM_ANGLE);
1451 BIND_ENUM_CONSTANT(PARAM_SCALE);
1452 BIND_ENUM_CONSTANT(PARAM_HUE_VARIATION);
1453 BIND_ENUM_CONSTANT(PARAM_ANIM_SPEED);
1454 BIND_ENUM_CONSTANT(PARAM_ANIM_OFFSET);
1455 BIND_ENUM_CONSTANT(PARAM_MAX);
1456
1457 BIND_ENUM_CONSTANT(PARTICLE_FLAG_ALIGN_Y_TO_VELOCITY);
1458 BIND_ENUM_CONSTANT(PARTICLE_FLAG_ROTATE_Y); // Unused, but exposed for consistency with 3D.
1459 BIND_ENUM_CONSTANT(PARTICLE_FLAG_DISABLE_Z); // Unused, but exposed for consistency with 3D.
1460 BIND_ENUM_CONSTANT(PARTICLE_FLAG_MAX);
1461
1462 BIND_ENUM_CONSTANT(EMISSION_SHAPE_POINT);
1463 BIND_ENUM_CONSTANT(EMISSION_SHAPE_SPHERE);
1464 BIND_ENUM_CONSTANT(EMISSION_SHAPE_SPHERE_SURFACE);
1465 BIND_ENUM_CONSTANT(EMISSION_SHAPE_RECTANGLE);
1466 BIND_ENUM_CONSTANT(EMISSION_SHAPE_POINTS);
1467 BIND_ENUM_CONSTANT(EMISSION_SHAPE_DIRECTED_POINTS);
1468 BIND_ENUM_CONSTANT(EMISSION_SHAPE_MAX);
1469}
1470
1471CPUParticles2D::CPUParticles2D() {
1472 mesh = RenderingServer::get_singleton()->mesh_create();
1473 multimesh = RenderingServer::get_singleton()->multimesh_create();
1474 RenderingServer::get_singleton()->multimesh_set_mesh(multimesh, mesh);
1475
1476 set_emitting(true);
1477 set_amount(8);
1478 set_use_local_coordinates(false);
1479
1480 set_param_min(PARAM_INITIAL_LINEAR_VELOCITY, 0);
1481 set_param_min(PARAM_ANGULAR_VELOCITY, 0);
1482 set_param_min(PARAM_ORBIT_VELOCITY, 0);
1483 set_param_min(PARAM_LINEAR_ACCEL, 0);
1484 set_param_min(PARAM_RADIAL_ACCEL, 0);
1485 set_param_min(PARAM_TANGENTIAL_ACCEL, 0);
1486 set_param_min(PARAM_DAMPING, 0);
1487 set_param_min(PARAM_ANGLE, 0);
1488 set_param_min(PARAM_SCALE, 1);
1489 set_param_min(PARAM_HUE_VARIATION, 0);
1490 set_param_min(PARAM_ANIM_SPEED, 0);
1491 set_param_min(PARAM_ANIM_OFFSET, 0);
1492
1493 set_param_max(PARAM_INITIAL_LINEAR_VELOCITY, 0);
1494 set_param_max(PARAM_ANGULAR_VELOCITY, 0);
1495 set_param_max(PARAM_ORBIT_VELOCITY, 0);
1496 set_param_max(PARAM_LINEAR_ACCEL, 0);
1497 set_param_max(PARAM_RADIAL_ACCEL, 0);
1498 set_param_max(PARAM_TANGENTIAL_ACCEL, 0);
1499 set_param_max(PARAM_DAMPING, 0);
1500 set_param_max(PARAM_ANGLE, 0);
1501 set_param_max(PARAM_SCALE, 1);
1502 set_param_max(PARAM_HUE_VARIATION, 0);
1503 set_param_max(PARAM_ANIM_SPEED, 0);
1504 set_param_max(PARAM_ANIM_OFFSET, 0);
1505
1506 for (int i = 0; i < PARTICLE_FLAG_MAX; i++) {
1507 particle_flags[i] = false;
1508 }
1509
1510 set_color(Color(1, 1, 1, 1));
1511
1512 _update_mesh_texture();
1513}
1514
1515CPUParticles2D::~CPUParticles2D() {
1516 ERR_FAIL_NULL(RenderingServer::get_singleton());
1517 RS::get_singleton()->free(multimesh);
1518 RS::get_singleton()->free(mesh);
1519}
1520