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godot/scene/2d/cpu_particles_2d.cpp

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/**************************************************************************/
/* cpu_particles_2d.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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 "cpu_particles_2d.h"
#include "scene/2d/gpu_particles_2d.h"
#include "scene/resources/atlas_texture.h"
#include "scene/resources/curve_texture.h"
#include "scene/resources/gradient_texture.h"
#include "scene/resources/particle_process_material.h"
#include "scene/scene_string_names.h"
void CPUParticles2D::set_emitting(bool p_emitting) {
if (emitting == p_emitting) {
return;
}
emitting = p_emitting;
if (emitting) {
active = true;
set_process_internal(true);
}
}
void CPUParticles2D::set_amount(int p_amount) {
ERR_FAIL_COND_MSG(p_amount < 1, "Amount of particles must be greater than 0.");
particles.resize(p_amount);
{
Particle *w = particles.ptrw();
for (int i = 0; i < p_amount; i++) {
w[i].active = false;
}
}
particle_data.resize((8 + 4 + 4) * p_amount);
RS::get_singleton()->multimesh_allocate_data(multimesh, p_amount, RS::MULTIMESH_TRANSFORM_2D, true, true);
particle_order.resize(p_amount);
}
void CPUParticles2D::set_lifetime(double p_lifetime) {
ERR_FAIL_COND_MSG(p_lifetime <= 0, "Particles lifetime must be greater than 0.");
lifetime = p_lifetime;
}
void CPUParticles2D::set_one_shot(bool p_one_shot) {
one_shot = p_one_shot;
}
void CPUParticles2D::set_pre_process_time(double p_time) {
pre_process_time = p_time;
}
void CPUParticles2D::set_explosiveness_ratio(real_t p_ratio) {
explosiveness_ratio = p_ratio;
}
void CPUParticles2D::set_randomness_ratio(real_t p_ratio) {
randomness_ratio = p_ratio;
}
void CPUParticles2D::set_lifetime_randomness(double p_random) {
lifetime_randomness = p_random;
}
void CPUParticles2D::set_use_local_coordinates(bool p_enable) {
local_coords = p_enable;
set_notify_transform(!p_enable);
}
void CPUParticles2D::set_speed_scale(double p_scale) {
speed_scale = p_scale;
}
bool CPUParticles2D::is_emitting() const {
return emitting;
}
int CPUParticles2D::get_amount() const {
return particles.size();
}
double CPUParticles2D::get_lifetime() const {
return lifetime;
}
bool CPUParticles2D::get_one_shot() const {
return one_shot;
}
double CPUParticles2D::get_pre_process_time() const {
return pre_process_time;
}
real_t CPUParticles2D::get_explosiveness_ratio() const {
return explosiveness_ratio;
}
real_t CPUParticles2D::get_randomness_ratio() const {
return randomness_ratio;
}
double CPUParticles2D::get_lifetime_randomness() const {
return lifetime_randomness;
}
bool CPUParticles2D::get_use_local_coordinates() const {
return local_coords;
}
double CPUParticles2D::get_speed_scale() const {
return speed_scale;
}
void CPUParticles2D::set_draw_order(DrawOrder p_order) {
draw_order = p_order;
}
CPUParticles2D::DrawOrder CPUParticles2D::get_draw_order() const {
return draw_order;
}
void CPUParticles2D::_update_mesh_texture() {
Size2 tex_size;
if (texture.is_valid()) {
tex_size = texture->get_size();
} else {
tex_size = Size2(1, 1);
}
Vector<Vector2> vertices = {
-tex_size * 0.5,
-tex_size * 0.5 + Vector2(tex_size.x, 0),
-tex_size * 0.5 + tex_size,
-tex_size * 0.5 + Vector2(0, tex_size.y)
};
Vector<Vector2> uvs;
AtlasTexture *atlas_texure = Object::cast_to<AtlasTexture>(*texture);
if (atlas_texure && atlas_texure->get_atlas().is_valid()) {
Rect2 region_rect = atlas_texure->get_region();
Size2 atlas_size = atlas_texure->get_atlas()->get_size();
uvs.push_back(Vector2(region_rect.position.x / atlas_size.x, region_rect.position.y / atlas_size.y));
uvs.push_back(Vector2((region_rect.position.x + region_rect.size.x) / atlas_size.x, region_rect.position.y / atlas_size.y));
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));
uvs.push_back(Vector2(region_rect.position.x / atlas_size.x, (region_rect.position.y + region_rect.size.y) / atlas_size.y));
} else {
uvs.push_back(Vector2(0, 0));
uvs.push_back(Vector2(1, 0));
uvs.push_back(Vector2(1, 1));
uvs.push_back(Vector2(0, 1));
}
Vector<Color> colors = {
Color(1, 1, 1, 1),
Color(1, 1, 1, 1),
Color(1, 1, 1, 1),
Color(1, 1, 1, 1)
};
Vector<int> indices = { 0, 1, 2, 2, 3, 0 };
Array arr;
arr.resize(RS::ARRAY_MAX);
arr[RS::ARRAY_VERTEX] = vertices;
arr[RS::ARRAY_TEX_UV] = uvs;
arr[RS::ARRAY_COLOR] = colors;
arr[RS::ARRAY_INDEX] = indices;
RS::get_singleton()->mesh_clear(mesh);
RS::get_singleton()->mesh_add_surface_from_arrays(mesh, RS::PRIMITIVE_TRIANGLES, arr);
}
void CPUParticles2D::set_texture(const Ref<Texture2D> &p_texture) {
if (p_texture == texture) {
return;
}
if (texture.is_valid()) {
texture->disconnect_changed(callable_mp(this, &CPUParticles2D::_texture_changed));
}
texture = p_texture;
if (texture.is_valid()) {
texture->connect_changed(callable_mp(this, &CPUParticles2D::_texture_changed));
}
queue_redraw();
_update_mesh_texture();
}
void CPUParticles2D::_texture_changed() {
if (texture.is_valid()) {
queue_redraw();
_update_mesh_texture();
}
}
Ref<Texture2D> CPUParticles2D::get_texture() const {
return texture;
}
void CPUParticles2D::set_fixed_fps(int p_count) {
fixed_fps = p_count;
}
int CPUParticles2D::get_fixed_fps() const {
return fixed_fps;
}
void CPUParticles2D::set_fractional_delta(bool p_enable) {
fractional_delta = p_enable;
}
bool CPUParticles2D::get_fractional_delta() const {
return fractional_delta;
}
PackedStringArray CPUParticles2D::get_configuration_warnings() const {
PackedStringArray warnings = Node2D::get_configuration_warnings();
CanvasItemMaterial *mat = Object::cast_to<CanvasItemMaterial>(get_material().ptr());
if (get_material().is_null() || (mat && !mat->get_particles_animation())) {
if (get_param_max(PARAM_ANIM_SPEED) != 0.0 || get_param_max(PARAM_ANIM_OFFSET) != 0.0 ||
get_param_curve(PARAM_ANIM_SPEED).is_valid() || get_param_curve(PARAM_ANIM_OFFSET).is_valid()) {
warnings.push_back(RTR("CPUParticles2D animation requires the usage of a CanvasItemMaterial with \"Particles Animation\" enabled."));
}
}
return warnings;
}
void CPUParticles2D::restart() {
time = 0;
frame_remainder = 0;
cycle = 0;
emitting = false;
{
int pc = particles.size();
Particle *w = particles.ptrw();
for (int i = 0; i < pc; i++) {
w[i].active = false;
}
}
set_emitting(true);
}
void CPUParticles2D::set_direction(Vector2 p_direction) {
direction = p_direction;
}
Vector2 CPUParticles2D::get_direction() const {
return direction;
}
void CPUParticles2D::set_spread(real_t p_spread) {
spread = p_spread;
}
real_t CPUParticles2D::get_spread() const {
return spread;
}
void CPUParticles2D::set_param_min(Parameter p_param, real_t p_value) {
ERR_FAIL_INDEX(p_param, PARAM_MAX);
parameters_min[p_param] = p_value;
if (parameters_min[p_param] > parameters_max[p_param]) {
set_param_max(p_param, p_value);
}
}
real_t CPUParticles2D::get_param_min(Parameter p_param) const {
ERR_FAIL_INDEX_V(p_param, PARAM_MAX, 0);
return parameters_min[p_param];
}
void CPUParticles2D::set_param_max(Parameter p_param, real_t p_value) {
ERR_FAIL_INDEX(p_param, PARAM_MAX);
parameters_max[p_param] = p_value;
if (parameters_min[p_param] > parameters_max[p_param]) {
set_param_min(p_param, p_value);
}
update_configuration_warnings();
}
real_t CPUParticles2D::get_param_max(Parameter p_param) const {
ERR_FAIL_INDEX_V(p_param, PARAM_MAX, 0);
return parameters_max[p_param];
}
static void _adjust_curve_range(const Ref<Curve> &p_curve, real_t p_min, real_t p_max) {
Ref<Curve> curve = p_curve;
if (!curve.is_valid()) {
return;
}
curve->ensure_default_setup(p_min, p_max);
}
void CPUParticles2D::set_param_curve(Parameter p_param, const Ref<Curve> &p_curve) {
ERR_FAIL_INDEX(p_param, PARAM_MAX);
curve_parameters[p_param] = p_curve;
switch (p_param) {
case PARAM_INITIAL_LINEAR_VELOCITY: {
//do none for this one
} break;
case PARAM_ANGULAR_VELOCITY: {
_adjust_curve_range(p_curve, -360, 360);
} break;
case PARAM_ORBIT_VELOCITY: {
_adjust_curve_range(p_curve, -500, 500);
} break;
case PARAM_LINEAR_ACCEL: {
_adjust_curve_range(p_curve, -200, 200);
} break;
case PARAM_RADIAL_ACCEL: {
_adjust_curve_range(p_curve, -200, 200);
} break;
case PARAM_TANGENTIAL_ACCEL: {
_adjust_curve_range(p_curve, -200, 200);
} break;
case PARAM_DAMPING: {
_adjust_curve_range(p_curve, 0, 100);
} break;
case PARAM_ANGLE: {
_adjust_curve_range(p_curve, -360, 360);
} break;
case PARAM_SCALE: {
} break;
case PARAM_HUE_VARIATION: {
_adjust_curve_range(p_curve, -1, 1);
} break;
case PARAM_ANIM_SPEED: {
_adjust_curve_range(p_curve, 0, 200);
} break;
case PARAM_ANIM_OFFSET: {
} break;
default: {
}
}
update_configuration_warnings();
}
Ref<Curve> CPUParticles2D::get_param_curve(Parameter p_param) const {
ERR_FAIL_INDEX_V(p_param, PARAM_MAX, Ref<Curve>());
return curve_parameters[p_param];
}
void CPUParticles2D::set_color(const Color &p_color) {
color = p_color;
}
Color CPUParticles2D::get_color() const {
return color;
}
void CPUParticles2D::set_color_ramp(const Ref<Gradient> &p_ramp) {
color_ramp = p_ramp;
}
Ref<Gradient> CPUParticles2D::get_color_ramp() const {
return color_ramp;
}
void CPUParticles2D::set_color_initial_ramp(const Ref<Gradient> &p_ramp) {
color_initial_ramp = p_ramp;
}
Ref<Gradient> CPUParticles2D::get_color_initial_ramp() const {
return color_initial_ramp;
}
void CPUParticles2D::set_particle_flag(ParticleFlags p_particle_flag, bool p_enable) {
ERR_FAIL_INDEX(p_particle_flag, PARTICLE_FLAG_MAX);
particle_flags[p_particle_flag] = p_enable;
}
bool CPUParticles2D::get_particle_flag(ParticleFlags p_particle_flag) const {
ERR_FAIL_INDEX_V(p_particle_flag, PARTICLE_FLAG_MAX, false);
return particle_flags[p_particle_flag];
}
void CPUParticles2D::set_emission_shape(EmissionShape p_shape) {
ERR_FAIL_INDEX(p_shape, EMISSION_SHAPE_MAX);
emission_shape = p_shape;
notify_property_list_changed();
}
void CPUParticles2D::set_emission_sphere_radius(real_t p_radius) {
emission_sphere_radius = p_radius;
}
void CPUParticles2D::set_emission_rect_extents(Vector2 p_extents) {
emission_rect_extents = p_extents;
}
void CPUParticles2D::set_emission_points(const Vector<Vector2> &p_points) {
emission_points = p_points;
}
void CPUParticles2D::set_emission_normals(const Vector<Vector2> &p_normals) {
emission_normals = p_normals;
}
void CPUParticles2D::set_emission_colors(const Vector<Color> &p_colors) {
emission_colors = p_colors;
}
real_t CPUParticles2D::get_emission_sphere_radius() const {
return emission_sphere_radius;
}
Vector2 CPUParticles2D::get_emission_rect_extents() const {
return emission_rect_extents;
}
Vector<Vector2> CPUParticles2D::get_emission_points() const {
return emission_points;
}
Vector<Vector2> CPUParticles2D::get_emission_normals() const {
return emission_normals;
}
Vector<Color> CPUParticles2D::get_emission_colors() const {
return emission_colors;
}
CPUParticles2D::EmissionShape CPUParticles2D::get_emission_shape() const {
return emission_shape;
}
void CPUParticles2D::set_gravity(const Vector2 &p_gravity) {
gravity = p_gravity;
}
Vector2 CPUParticles2D::get_gravity() const {
return gravity;
}
void CPUParticles2D::set_scale_curve_x(Ref<Curve> p_scale_curve) {
scale_curve_x = p_scale_curve;
}
void CPUParticles2D::set_scale_curve_y(Ref<Curve> p_scale_curve) {
scale_curve_y = p_scale_curve;
}
void CPUParticles2D::set_split_scale(bool p_split_scale) {
split_scale = p_split_scale;
notify_property_list_changed();
}
Ref<Curve> CPUParticles2D::get_scale_curve_x() const {
return scale_curve_x;
}
Ref<Curve> CPUParticles2D::get_scale_curve_y() const {
return scale_curve_y;
}
bool CPUParticles2D::get_split_scale() {
return split_scale;
}
void CPUParticles2D::_validate_property(PropertyInfo &p_property) const {
if (p_property.name == "emission_sphere_radius" && (emission_shape != EMISSION_SHAPE_SPHERE && emission_shape != EMISSION_SHAPE_SPHERE_SURFACE)) {
p_property.usage = PROPERTY_USAGE_NONE;
}
if (p_property.name == "emission_rect_extents" && emission_shape != EMISSION_SHAPE_RECTANGLE) {
p_property.usage = PROPERTY_USAGE_NONE;
}
if ((p_property.name == "emission_point_texture" || p_property.name == "emission_color_texture") && (emission_shape < EMISSION_SHAPE_POINTS)) {
p_property.usage = PROPERTY_USAGE_NONE;
}
if (p_property.name == "emission_normals" && emission_shape != EMISSION_SHAPE_DIRECTED_POINTS) {
p_property.usage = PROPERTY_USAGE_NONE;
}
if (p_property.name == "emission_points" && emission_shape != EMISSION_SHAPE_POINTS && emission_shape != EMISSION_SHAPE_DIRECTED_POINTS) {
p_property.usage = PROPERTY_USAGE_NONE;
}
if (p_property.name == "emission_colors" && emission_shape != EMISSION_SHAPE_POINTS && emission_shape != EMISSION_SHAPE_DIRECTED_POINTS) {
p_property.usage = PROPERTY_USAGE_NONE;
}
if (p_property.name.begins_with("scale_curve_") && !split_scale) {
p_property.usage = PROPERTY_USAGE_NONE;
}
}
static uint32_t idhash(uint32_t x) {
x = ((x >> uint32_t(16)) ^ x) * uint32_t(0x45d9f3b);
x = ((x >> uint32_t(16)) ^ x) * uint32_t(0x45d9f3b);
x = (x >> uint32_t(16)) ^ x;
return x;
}
static real_t rand_from_seed(uint32_t &seed) {
int k;
int s = int(seed);
if (s == 0) {
s = 305420679;
}
k = s / 127773;
s = 16807 * (s - k * 127773) - 2836 * k;
if (s < 0) {
s += 2147483647;
}
seed = uint32_t(s);
return (seed % uint32_t(65536)) / 65535.0;
}
void CPUParticles2D::_update_internal() {
if (particles.size() == 0 || !is_visible_in_tree()) {
_set_do_redraw(false);
return;
}
double delta = get_process_delta_time();
if (!active && !emitting) {
set_process_internal(false);
_set_do_redraw(false);
//reset variables
time = 0;
frame_remainder = 0;
cycle = 0;
return;
}
_set_do_redraw(true);
if (time == 0 && pre_process_time > 0.0) {
double frame_time;
if (fixed_fps > 0) {
frame_time = 1.0 / fixed_fps;
} else {
frame_time = 1.0 / 30.0;
}
double todo = pre_process_time;
while (todo >= 0) {
_particles_process(frame_time);
todo -= frame_time;
}
}
if (fixed_fps > 0) {
double frame_time = 1.0 / fixed_fps;
double decr = frame_time;
double ldelta = delta;
if (ldelta > 0.1) { //avoid recursive stalls if fps goes below 10
ldelta = 0.1;
} else if (ldelta <= 0.0) { //unlikely but..
ldelta = 0.001;
}
double todo = frame_remainder + ldelta;
while (todo >= frame_time) {
_particles_process(frame_time);
todo -= decr;
}
frame_remainder = todo;
} else {
_particles_process(delta);
}
_update_particle_data_buffer();
}
void CPUParticles2D::_particles_process(double p_delta) {
p_delta *= speed_scale;
int pcount = particles.size();
Particle *w = particles.ptrw();
Particle *parray = w;
double prev_time = time;
time += p_delta;
if (time > lifetime) {
time = Math::fmod(time, lifetime);
cycle++;
if (one_shot && cycle > 0) {
set_emitting(false);
notify_property_list_changed();
}
}
Transform2D emission_xform;
Transform2D velocity_xform;
if (!local_coords) {
emission_xform = get_global_transform();
velocity_xform = emission_xform;
velocity_xform[2] = Vector2();
}
double system_phase = time / lifetime;
bool should_be_active = false;
for (int i = 0; i < pcount; i++) {
Particle &p = parray[i];
if (!emitting && !p.active) {
continue;
}
double local_delta = p_delta;
// The phase is a ratio between 0 (birth) and 1 (end of life) for each particle.
// While we use time in tests later on, for randomness we use the phase as done in the
// original shader code, and we later multiply by lifetime to get the time.
double restart_phase = double(i) / double(pcount);
if (randomness_ratio > 0.0) {
uint32_t seed = cycle;
if (restart_phase >= system_phase) {
seed -= uint32_t(1);
}
seed *= uint32_t(pcount);
seed += uint32_t(i);
double random = double(idhash(seed) % uint32_t(65536)) / 65536.0;
restart_phase += randomness_ratio * random * 1.0 / double(pcount);
}
restart_phase *= (1.0 - explosiveness_ratio);
double restart_time = restart_phase * lifetime;
bool restart = false;
if (time > prev_time) {
// restart_time >= prev_time is used so particles emit in the first frame they are processed
if (restart_time >= prev_time && restart_time < time) {
restart = true;
if (fractional_delta) {
local_delta = time - restart_time;
}
}
} else if (local_delta > 0.0) {
if (restart_time >= prev_time) {
restart = true;
if (fractional_delta) {
local_delta = lifetime - restart_time + time;
}
} else if (restart_time < time) {
restart = true;
if (fractional_delta) {
local_delta = time - restart_time;
}
}
}
if (p.time * (1.0 - explosiveness_ratio) > p.lifetime) {
restart = true;
}
float tv = 0.0;
if (restart) {
if (!emitting) {
p.active = false;
continue;
}
p.active = true;
/*real_t tex_linear_velocity = 0;
if (curve_parameters[PARAM_INITIAL_LINEAR_VELOCITY].is_valid()) {
tex_linear_velocity = curve_parameters[PARAM_INITIAL_LINEAR_VELOCITY]->sample(0);
}*/
real_t tex_angle = 1.0;
if (curve_parameters[PARAM_ANGLE].is_valid()) {
tex_angle = curve_parameters[PARAM_ANGLE]->sample(tv);
}
real_t tex_anim_offset = 1.0;
if (curve_parameters[PARAM_ANGLE].is_valid()) {
tex_anim_offset = curve_parameters[PARAM_ANGLE]->sample(tv);
}
p.seed = Math::rand();
p.angle_rand = Math::randf();
p.scale_rand = Math::randf();
p.hue_rot_rand = Math::randf();
p.anim_offset_rand = Math::randf();
if (color_initial_ramp.is_valid()) {
p.start_color_rand = color_initial_ramp->get_color_at_offset(Math::randf());
} else {
p.start_color_rand = Color(1, 1, 1, 1);
}
real_t angle1_rad = direction.angle() + Math::deg_to_rad((Math::randf() * 2.0 - 1.0) * spread);
Vector2 rot = Vector2(Math::cos(angle1_rad), Math::sin(angle1_rad));
p.velocity = rot * Math::lerp(parameters_min[PARAM_INITIAL_LINEAR_VELOCITY], parameters_max[PARAM_INITIAL_LINEAR_VELOCITY], (real_t)Math::randf());
real_t base_angle = tex_angle * Math::lerp(parameters_min[PARAM_ANGLE], parameters_max[PARAM_ANGLE], p.angle_rand);
p.rotation = Math::deg_to_rad(base_angle);
p.custom[0] = 0.0; // unused
p.custom[1] = 0.0; // phase [0..1]
p.custom[2] = tex_anim_offset * Math::lerp(parameters_min[PARAM_ANIM_OFFSET], parameters_max[PARAM_ANIM_OFFSET], p.anim_offset_rand);
p.custom[3] = (1.0 - Math::randf() * lifetime_randomness);
p.transform = Transform2D();
p.time = 0;
p.lifetime = lifetime * p.custom[3];
p.base_color = Color(1, 1, 1, 1);
switch (emission_shape) {
case EMISSION_SHAPE_POINT: {
//do none
} break;
case EMISSION_SHAPE_SPHERE: {
real_t t = Math_TAU * Math::randf();
real_t radius = emission_sphere_radius * Math::randf();
p.transform[2] = Vector2(Math::cos(t), Math::sin(t)) * radius;
} break;
case EMISSION_SHAPE_SPHERE_SURFACE: {
real_t s = Math::randf(), t = Math_TAU * Math::randf();
real_t radius = emission_sphere_radius * Math::sqrt(1.0 - s * s);
p.transform[2] = Vector2(Math::cos(t), Math::sin(t)) * radius;
} break;
case EMISSION_SHAPE_RECTANGLE: {
p.transform[2] = Vector2(Math::randf() * 2.0 - 1.0, Math::randf() * 2.0 - 1.0) * emission_rect_extents;
} break;
case EMISSION_SHAPE_POINTS:
case EMISSION_SHAPE_DIRECTED_POINTS: {
int pc = emission_points.size();
if (pc == 0) {
break;
}
int random_idx = Math::rand() % pc;
p.transform[2] = emission_points.get(random_idx);
if (emission_shape == EMISSION_SHAPE_DIRECTED_POINTS && emission_normals.size() == pc) {
Vector2 normal = emission_normals.get(random_idx);
Transform2D m2;
m2.columns[0] = normal;
m2.columns[1] = normal.orthogonal();
p.velocity = m2.basis_xform(p.velocity);
}
if (emission_colors.size() == pc) {
p.base_color = emission_colors.get(random_idx);
}
} break;
case EMISSION_SHAPE_MAX: { // Max value for validity check.
break;
}
}
if (!local_coords) {
p.velocity = velocity_xform.xform(p.velocity);
p.transform = emission_xform * p.transform;
}
} else if (!p.active) {
continue;
} else if (p.time > p.lifetime) {
p.active = false;
tv = 1.0;
} else {
uint32_t alt_seed = p.seed;
p.time += local_delta;
p.custom[1] = p.time / lifetime;
tv = p.time / p.lifetime;
real_t tex_linear_velocity = 1.0;
if (curve_parameters[PARAM_INITIAL_LINEAR_VELOCITY].is_valid()) {
tex_linear_velocity = curve_parameters[PARAM_INITIAL_LINEAR_VELOCITY]->sample(tv);
}
real_t tex_orbit_velocity = 1.0;
if (curve_parameters[PARAM_ORBIT_VELOCITY].is_valid()) {
tex_orbit_velocity = curve_parameters[PARAM_ORBIT_VELOCITY]->sample(tv);
}
real_t tex_angular_velocity = 1.0;
if (curve_parameters[PARAM_ANGULAR_VELOCITY].is_valid()) {
tex_angular_velocity = curve_parameters[PARAM_ANGULAR_VELOCITY]->sample(tv);
}
real_t tex_linear_accel = 1.0;
if (curve_parameters[PARAM_LINEAR_ACCEL].is_valid()) {
tex_linear_accel = curve_parameters[PARAM_LINEAR_ACCEL]->sample(tv);
}
real_t tex_tangential_accel = 1.0;
if (curve_parameters[PARAM_TANGENTIAL_ACCEL].is_valid()) {
tex_tangential_accel = curve_parameters[PARAM_TANGENTIAL_ACCEL]->sample(tv);
}
real_t tex_radial_accel = 1.0;
if (curve_parameters[PARAM_RADIAL_ACCEL].is_valid()) {
tex_radial_accel = curve_parameters[PARAM_RADIAL_ACCEL]->sample(tv);
}
real_t tex_damping = 1.0;
if (curve_parameters[PARAM_DAMPING].is_valid()) {
tex_damping = curve_parameters[PARAM_DAMPING]->sample(tv);
}
real_t tex_angle = 1.0;
if (curve_parameters[PARAM_ANGLE].is_valid()) {
tex_angle = curve_parameters[PARAM_ANGLE]->sample(tv);
}
real_t tex_anim_speed = 1.0;
if (curve_parameters[PARAM_ANIM_SPEED].is_valid()) {
tex_anim_speed = curve_parameters[PARAM_ANIM_SPEED]->sample(tv);
}
real_t tex_anim_offset = 1.0;
if (curve_parameters[PARAM_ANIM_OFFSET].is_valid()) {
tex_anim_offset = curve_parameters[PARAM_ANIM_OFFSET]->sample(tv);
}
Vector2 force = gravity;
Vector2 pos = p.transform[2];
//apply linear acceleration
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();
//apply radial acceleration
Vector2 org = emission_xform[2];
Vector2 diff = pos - org;
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();
//apply tangential acceleration;
Vector2 yx = Vector2(diff.y, diff.x);
force += yx.length() > 0.0 ? (yx * Vector2(-1.0, 1.0)).normalized() * (tex_tangential_accel * Math::lerp(parameters_min[PARAM_TANGENTIAL_ACCEL], parameters_max[PARAM_TANGENTIAL_ACCEL], rand_from_seed(alt_seed))) : Vector2();
//apply attractor forces
p.velocity += force * local_delta;
//orbit velocity
real_t orbit_amount = tex_orbit_velocity * Math::lerp(parameters_min[PARAM_ORBIT_VELOCITY], parameters_max[PARAM_ORBIT_VELOCITY], rand_from_seed(alt_seed));
if (orbit_amount != 0.0) {
real_t ang = orbit_amount * local_delta * Math_TAU;
// Not sure why the ParticleProcessMaterial code uses a clockwise rotation matrix,
// but we use -ang here to reproduce its behavior.
Transform2D rot = Transform2D(-ang, Vector2());
p.transform[2] -= diff;
p.transform[2] += rot.basis_xform(diff);
}
if (curve_parameters[PARAM_INITIAL_LINEAR_VELOCITY].is_valid()) {
p.velocity = p.velocity.normalized() * tex_linear_velocity;
}
if (parameters_max[PARAM_DAMPING] + tex_damping > 0.0) {
real_t v = p.velocity.length();
real_t damp = tex_damping * Math::lerp(parameters_min[PARAM_DAMPING], parameters_max[PARAM_DAMPING], rand_from_seed(alt_seed));
v -= damp * local_delta;
if (v < 0.0) {
p.velocity = Vector2();
} else {
p.velocity = p.velocity.normalized() * v;
}
}
real_t base_angle = (tex_angle)*Math::lerp(parameters_min[PARAM_ANGLE], parameters_max[PARAM_ANGLE], p.angle_rand);
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));
p.rotation = Math::deg_to_rad(base_angle); //angle
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));
}
//apply color
//apply hue rotation
Vector2 tex_scale = Vector2(1.0, 1.0);
if (split_scale) {
if (scale_curve_x.is_valid()) {
tex_scale.x = scale_curve_x->sample(tv);
} else {
tex_scale.x = 1.0;
}
if (scale_curve_y.is_valid()) {
tex_scale.y = scale_curve_y->sample(tv);
} else {
tex_scale.y = 1.0;
}
} else {
if (curve_parameters[PARAM_SCALE].is_valid()) {
real_t tmp_scale = curve_parameters[PARAM_SCALE]->sample(tv);
tex_scale.x = tmp_scale;
tex_scale.y = tmp_scale;
}
}
real_t tex_hue_variation = 0.0;
if (curve_parameters[PARAM_HUE_VARIATION].is_valid()) {
tex_hue_variation = curve_parameters[PARAM_HUE_VARIATION]->sample(tv);
}
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);
real_t hue_rot_c = Math::cos(hue_rot_angle);
real_t hue_rot_s = Math::sin(hue_rot_angle);
Basis hue_rot_mat;
{
Basis mat1(0.299, 0.587, 0.114, 0.299, 0.587, 0.114, 0.299, 0.587, 0.114);
Basis mat2(0.701, -0.587, -0.114, -0.299, 0.413, -0.114, -0.300, -0.588, 0.886);
Basis mat3(0.168, 0.330, -0.497, -0.328, 0.035, 0.292, 1.250, -1.050, -0.203);
for (int j = 0; j < 3; j++) {
hue_rot_mat[j] = mat1[j] + mat2[j] * hue_rot_c + mat3[j] * hue_rot_s;
}
}
if (color_ramp.is_valid()) {
p.color = color_ramp->get_color_at_offset(tv) * color;
} else {
p.color = color;
}
Vector3 color_rgb = hue_rot_mat.xform_inv(Vector3(p.color.r, p.color.g, p.color.b));
p.color.r = color_rgb.x;
p.color.g = color_rgb.y;
p.color.b = color_rgb.z;
p.color *= p.base_color * p.start_color_rand;
if (particle_flags[PARTICLE_FLAG_ALIGN_Y_TO_VELOCITY]) {
if (p.velocity.length() > 0.0) {
p.transform.columns[1] = p.velocity.normalized();
p.transform.columns[0] = p.transform.columns[1].orthogonal();
}
} else {
p.transform.columns[0] = Vector2(Math::cos(p.rotation), -Math::sin(p.rotation));
p.transform.columns[1] = Vector2(Math::sin(p.rotation), Math::cos(p.rotation));
}
//scale by scale
Vector2 base_scale = tex_scale * Math::lerp(parameters_min[PARAM_SCALE], parameters_max[PARAM_SCALE], p.scale_rand);
if (base_scale.x < 0.00001) {
base_scale.x = 0.00001;
}
if (base_scale.y < 0.00001) {
base_scale.y = 0.00001;
}
p.transform.columns[0] *= base_scale.x;
p.transform.columns[1] *= base_scale.y;
p.transform[2] += p.velocity * local_delta;
should_be_active = true;
}
if (!Math::is_equal_approx(time, 0.0) && active && !should_be_active) {
active = false;
emit_signal(SceneStringNames::get_singleton()->finished);
}
}
void CPUParticles2D::_update_particle_data_buffer() {
MutexLock lock(update_mutex);
int pc = particles.size();
int *ow;
int *order = nullptr;
float *w = particle_data.ptrw();
const Particle *r = particles.ptr();
float *ptr = w;
if (draw_order != DRAW_ORDER_INDEX) {
ow = particle_order.ptrw();
order = ow;
for (int i = 0; i < pc; i++) {
order[i] = i;
}
if (draw_order == DRAW_ORDER_LIFETIME) {
SortArray<int, SortLifetime> sorter;
sorter.compare.particles = r;
sorter.sort(order, pc);
}
}
for (int i = 0; i < pc; i++) {
int idx = order ? order[i] : i;
Transform2D t = r[idx].transform;
if (!local_coords) {
t = inv_emission_transform * t;
}
if (r[idx].active) {
ptr[0] = t.columns[0][0];
ptr[1] = t.columns[1][0];
ptr[2] = 0;
ptr[3] = t.columns[2][0];
ptr[4] = t.columns[0][1];
ptr[5] = t.columns[1][1];
ptr[6] = 0;
ptr[7] = t.columns[2][1];
} else {
memset(ptr, 0, sizeof(float) * 8);
}
Color c = r[idx].color;
ptr[8] = c.r;
ptr[9] = c.g;
ptr[10] = c.b;
ptr[11] = c.a;
ptr[12] = r[idx].custom[0];
ptr[13] = r[idx].custom[1];
ptr[14] = r[idx].custom[2];
ptr[15] = r[idx].custom[3];
ptr += 16;
}
}
void CPUParticles2D::_set_do_redraw(bool p_do_redraw) {
if (do_redraw == p_do_redraw) {
return;
}
do_redraw = p_do_redraw;
{
MutexLock lock(update_mutex);
if (do_redraw) {
RS::get_singleton()->connect("frame_pre_draw", callable_mp(this, &CPUParticles2D::_update_render_thread));
RS::get_singleton()->canvas_item_set_update_when_visible(get_canvas_item(), true);
RS::get_singleton()->multimesh_set_visible_instances(multimesh, -1);
} else {
if (RS::get_singleton()->is_connected("frame_pre_draw", callable_mp(this, &CPUParticles2D::_update_render_thread))) {
RS::get_singleton()->disconnect("frame_pre_draw", callable_mp(this, &CPUParticles2D::_update_render_thread));
}
RS::get_singleton()->canvas_item_set_update_when_visible(get_canvas_item(), false);
RS::get_singleton()->multimesh_set_visible_instances(multimesh, 0);
}
}
queue_redraw(); // redraw to update render list
}
void CPUParticles2D::_update_render_thread() {
MutexLock lock(update_mutex);
RS::get_singleton()->multimesh_set_buffer(multimesh, particle_data);
}
void CPUParticles2D::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_ENTER_TREE: {
set_process_internal(emitting);
} break;
case NOTIFICATION_EXIT_TREE: {
_set_do_redraw(false);
} break;
case NOTIFICATION_DRAW: {
// first update before rendering to avoid one frame delay after emitting starts
if (emitting && (time == 0)) {
_update_internal();
}
if (!do_redraw) {
return; // don't add to render list
}
RID texrid;
if (texture.is_valid()) {
texrid = texture->get_rid();
}
RS::get_singleton()->canvas_item_add_multimesh(get_canvas_item(), multimesh, texrid);
} break;
case NOTIFICATION_INTERNAL_PROCESS: {
_update_internal();
} break;
case NOTIFICATION_TRANSFORM_CHANGED: {
inv_emission_transform = get_global_transform().affine_inverse();
if (!local_coords) {
int pc = particles.size();
float *w = particle_data.ptrw();
const Particle *r = particles.ptr();
float *ptr = w;
for (int i = 0; i < pc; i++) {
Transform2D t = inv_emission_transform * r[i].transform;
if (r[i].active) {
ptr[0] = t.columns[0][0];
ptr[1] = t.columns[1][0];
ptr[2] = 0;
ptr[3] = t.columns[2][0];
ptr[4] = t.columns[0][1];
ptr[5] = t.columns[1][1];
ptr[6] = 0;
ptr[7] = t.columns[2][1];
} else {
memset(ptr, 0, sizeof(float) * 8);
}
ptr += 16;
}
}
} break;
}
}
void CPUParticles2D::convert_from_particles(Node *p_particles) {
GPUParticles2D *gpu_particles = Object::cast_to<GPUParticles2D>(p_particles);
ERR_FAIL_NULL_MSG(gpu_particles, "Only GPUParticles2D nodes can be converted to CPUParticles2D.");
set_emitting(gpu_particles->is_emitting());
set_amount(gpu_particles->get_amount());
set_lifetime(gpu_particles->get_lifetime());
set_one_shot(gpu_particles->get_one_shot());
set_pre_process_time(gpu_particles->get_pre_process_time());
set_explosiveness_ratio(gpu_particles->get_explosiveness_ratio());
set_randomness_ratio(gpu_particles->get_randomness_ratio());
set_use_local_coordinates(gpu_particles->get_use_local_coordinates());
set_fixed_fps(gpu_particles->get_fixed_fps());
set_fractional_delta(gpu_particles->get_fractional_delta());
set_speed_scale(gpu_particles->get_speed_scale());
set_draw_order(DrawOrder(gpu_particles->get_draw_order()));
set_texture(gpu_particles->get_texture());
Ref<Material> mat = gpu_particles->get_material();
if (mat.is_valid()) {
set_material(mat);
}
Ref<ParticleProcessMaterial> proc_mat = gpu_particles->get_process_material();
if (proc_mat.is_null()) {
return;
}
Vector3 dir = proc_mat->get_direction();
set_direction(Vector2(dir.x, dir.y));
set_spread(proc_mat->get_spread());
set_color(proc_mat->get_color());
Ref<GradientTexture1D> gt = proc_mat->get_color_ramp();
if (gt.is_valid()) {
set_color_ramp(gt->get_gradient());
}
Ref<GradientTexture1D> gti = proc_mat->get_color_initial_ramp();
if (gti.is_valid()) {
set_color_initial_ramp(gti->get_gradient());
}
set_particle_flag(PARTICLE_FLAG_ALIGN_Y_TO_VELOCITY, proc_mat->get_particle_flag(ParticleProcessMaterial::PARTICLE_FLAG_ALIGN_Y_TO_VELOCITY));
set_emission_shape(EmissionShape(proc_mat->get_emission_shape()));
set_emission_sphere_radius(proc_mat->get_emission_sphere_radius());
Vector2 rect_extents = Vector2(proc_mat->get_emission_box_extents().x, proc_mat->get_emission_box_extents().y);
set_emission_rect_extents(rect_extents);
Ref<CurveXYZTexture> scale3D = proc_mat->get_param_texture(ParticleProcessMaterial::PARAM_SCALE);
if (scale3D.is_valid()) {
split_scale = true;
scale_curve_x = scale3D->get_curve_x();
scale_curve_y = scale3D->get_curve_y();
}
set_gravity(Vector2(proc_mat->get_gravity().x, proc_mat->get_gravity().y));
set_lifetime_randomness(proc_mat->get_lifetime_randomness());
#define CONVERT_PARAM(m_param) \
set_param_min(m_param, proc_mat->get_param_min(ParticleProcessMaterial::m_param)); \
{ \
Ref<CurveTexture> ctex = proc_mat->get_param_texture(ParticleProcessMaterial::m_param); \
if (ctex.is_valid()) \
set_param_curve(m_param, ctex->get_curve()); \
} \
set_param_max(m_param, proc_mat->get_param_max(ParticleProcessMaterial::m_param));
CONVERT_PARAM(PARAM_INITIAL_LINEAR_VELOCITY);
CONVERT_PARAM(PARAM_ANGULAR_VELOCITY);
CONVERT_PARAM(PARAM_ORBIT_VELOCITY);
CONVERT_PARAM(PARAM_LINEAR_ACCEL);
CONVERT_PARAM(PARAM_RADIAL_ACCEL);
CONVERT_PARAM(PARAM_TANGENTIAL_ACCEL);
CONVERT_PARAM(PARAM_DAMPING);
CONVERT_PARAM(PARAM_ANGLE);
CONVERT_PARAM(PARAM_SCALE);
CONVERT_PARAM(PARAM_HUE_VARIATION);
CONVERT_PARAM(PARAM_ANIM_SPEED);
CONVERT_PARAM(PARAM_ANIM_OFFSET);
#undef CONVERT_PARAM
}
void CPUParticles2D::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_emitting", "emitting"), &CPUParticles2D::set_emitting);
ClassDB::bind_method(D_METHOD("set_amount", "amount"), &CPUParticles2D::set_amount);
ClassDB::bind_method(D_METHOD("set_lifetime", "secs"), &CPUParticles2D::set_lifetime);
ClassDB::bind_method(D_METHOD("set_one_shot", "enable"), &CPUParticles2D::set_one_shot);
ClassDB::bind_method(D_METHOD("set_pre_process_time", "secs"), &CPUParticles2D::set_pre_process_time);
ClassDB::bind_method(D_METHOD("set_explosiveness_ratio", "ratio"), &CPUParticles2D::set_explosiveness_ratio);
ClassDB::bind_method(D_METHOD("set_randomness_ratio", "ratio"), &CPUParticles2D::set_randomness_ratio);
ClassDB::bind_method(D_METHOD("set_lifetime_randomness", "random"), &CPUParticles2D::set_lifetime_randomness);
ClassDB::bind_method(D_METHOD("set_use_local_coordinates", "enable"), &CPUParticles2D::set_use_local_coordinates);
ClassDB::bind_method(D_METHOD("set_fixed_fps", "fps"), &CPUParticles2D::set_fixed_fps);
ClassDB::bind_method(D_METHOD("set_fractional_delta", "enable"), &CPUParticles2D::set_fractional_delta);
ClassDB::bind_method(D_METHOD("set_speed_scale", "scale"), &CPUParticles2D::set_speed_scale);
ClassDB::bind_method(D_METHOD("is_emitting"), &CPUParticles2D::is_emitting);
ClassDB::bind_method(D_METHOD("get_amount"), &CPUParticles2D::get_amount);
ClassDB::bind_method(D_METHOD("get_lifetime"), &CPUParticles2D::get_lifetime);
ClassDB::bind_method(D_METHOD("get_one_shot"), &CPUParticles2D::get_one_shot);
ClassDB::bind_method(D_METHOD("get_pre_process_time"), &CPUParticles2D::get_pre_process_time);
ClassDB::bind_method(D_METHOD("get_explosiveness_ratio"), &CPUParticles2D::get_explosiveness_ratio);
ClassDB::bind_method(D_METHOD("get_randomness_ratio"), &CPUParticles2D::get_randomness_ratio);
ClassDB::bind_method(D_METHOD("get_lifetime_randomness"), &CPUParticles2D::get_lifetime_randomness);
ClassDB::bind_method(D_METHOD("get_use_local_coordinates"), &CPUParticles2D::get_use_local_coordinates);
ClassDB::bind_method(D_METHOD("get_fixed_fps"), &CPUParticles2D::get_fixed_fps);
ClassDB::bind_method(D_METHOD("get_fractional_delta"), &CPUParticles2D::get_fractional_delta);
ClassDB::bind_method(D_METHOD("get_speed_scale"), &CPUParticles2D::get_speed_scale);
ClassDB::bind_method(D_METHOD("set_draw_order", "order"), &CPUParticles2D::set_draw_order);
ClassDB::bind_method(D_METHOD("get_draw_order"), &CPUParticles2D::get_draw_order);
ClassDB::bind_method(D_METHOD("set_texture", "texture"), &CPUParticles2D::set_texture);
ClassDB::bind_method(D_METHOD("get_texture"), &CPUParticles2D::get_texture);
ClassDB::bind_method(D_METHOD("restart"), &CPUParticles2D::restart);
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "emitting"), "set_emitting", "is_emitting");
ADD_PROPERTY(PropertyInfo(Variant::INT, "amount", PROPERTY_HINT_RANGE, "1,1000000,1,exp"), "set_amount", "get_amount");
ADD_GROUP("Time", "");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "lifetime", PROPERTY_HINT_RANGE, "0.01,600.0,0.01,or_greater,suffix:s"), "set_lifetime", "get_lifetime");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "one_shot"), "set_one_shot", "get_one_shot");
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");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "speed_scale", PROPERTY_HINT_RANGE, "0,64,0.01"), "set_speed_scale", "get_speed_scale");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "explosiveness", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_explosiveness_ratio", "get_explosiveness_ratio");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "randomness", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_randomness_ratio", "get_randomness_ratio");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "lifetime_randomness", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_lifetime_randomness", "get_lifetime_randomness");
ADD_PROPERTY(PropertyInfo(Variant::INT, "fixed_fps", PROPERTY_HINT_RANGE, "0,1000,1,suffix:FPS"), "set_fixed_fps", "get_fixed_fps");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "fract_delta"), "set_fractional_delta", "get_fractional_delta");
ADD_GROUP("Drawing", "");
// No visibility_rect property contrarily to Particles2D, it's updated automatically.
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "local_coords"), "set_use_local_coordinates", "get_use_local_coordinates");
ADD_PROPERTY(PropertyInfo(Variant::INT, "draw_order", PROPERTY_HINT_ENUM, "Index,Lifetime"), "set_draw_order", "get_draw_order");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "texture", PROPERTY_HINT_RESOURCE_TYPE, "Texture2D"), "set_texture", "get_texture");
BIND_ENUM_CONSTANT(DRAW_ORDER_INDEX);
BIND_ENUM_CONSTANT(DRAW_ORDER_LIFETIME);
////////////////////////////////
ClassDB::bind_method(D_METHOD("set_direction", "direction"), &CPUParticles2D::set_direction);
ClassDB::bind_method(D_METHOD("get_direction"), &CPUParticles2D::get_direction);
ClassDB::bind_method(D_METHOD("set_spread", "spread"), &CPUParticles2D::set_spread);
ClassDB::bind_method(D_METHOD("get_spread"), &CPUParticles2D::get_spread);
ClassDB::bind_method(D_METHOD("set_param_min", "param", "value"), &CPUParticles2D::set_param_min);
ClassDB::bind_method(D_METHOD("get_param_min", "param"), &CPUParticles2D::get_param_min);
ClassDB::bind_method(D_METHOD("set_param_max", "param", "value"), &CPUParticles2D::set_param_max);
ClassDB::bind_method(D_METHOD("get_param_max", "param"), &CPUParticles2D::get_param_max);
ClassDB::bind_method(D_METHOD("set_param_curve", "param", "curve"), &CPUParticles2D::set_param_curve);
ClassDB::bind_method(D_METHOD("get_param_curve", "param"), &CPUParticles2D::get_param_curve);
ClassDB::bind_method(D_METHOD("set_color", "color"), &CPUParticles2D::set_color);
ClassDB::bind_method(D_METHOD("get_color"), &CPUParticles2D::get_color);
ClassDB::bind_method(D_METHOD("set_color_ramp", "ramp"), &CPUParticles2D::set_color_ramp);
ClassDB::bind_method(D_METHOD("get_color_ramp"), &CPUParticles2D::get_color_ramp);
ClassDB::bind_method(D_METHOD("set_color_initial_ramp", "ramp"), &CPUParticles2D::set_color_initial_ramp);
ClassDB::bind_method(D_METHOD("get_color_initial_ramp"), &CPUParticles2D::get_color_initial_ramp);
ClassDB::bind_method(D_METHOD("set_particle_flag", "particle_flag", "enable"), &CPUParticles2D::set_particle_flag);
ClassDB::bind_method(D_METHOD("get_particle_flag", "particle_flag"), &CPUParticles2D::get_particle_flag);
ClassDB::bind_method(D_METHOD("set_emission_shape", "shape"), &CPUParticles2D::set_emission_shape);
ClassDB::bind_method(D_METHOD("get_emission_shape"), &CPUParticles2D::get_emission_shape);
ClassDB::bind_method(D_METHOD("set_emission_sphere_radius", "radius"), &CPUParticles2D::set_emission_sphere_radius);
ClassDB::bind_method(D_METHOD("get_emission_sphere_radius"), &CPUParticles2D::get_emission_sphere_radius);
ClassDB::bind_method(D_METHOD("set_emission_rect_extents", "extents"), &CPUParticles2D::set_emission_rect_extents);
ClassDB::bind_method(D_METHOD("get_emission_rect_extents"), &CPUParticles2D::get_emission_rect_extents);
ClassDB::bind_method(D_METHOD("set_emission_points", "array"), &CPUParticles2D::set_emission_points);
ClassDB::bind_method(D_METHOD("get_emission_points"), &CPUParticles2D::get_emission_points);
ClassDB::bind_method(D_METHOD("set_emission_normals", "array"), &CPUParticles2D::set_emission_normals);
ClassDB::bind_method(D_METHOD("get_emission_normals"), &CPUParticles2D::get_emission_normals);
ClassDB::bind_method(D_METHOD("set_emission_colors", "array"), &CPUParticles2D::set_emission_colors);
ClassDB::bind_method(D_METHOD("get_emission_colors"), &CPUParticles2D::get_emission_colors);
ClassDB::bind_method(D_METHOD("get_gravity"), &CPUParticles2D::get_gravity);
ClassDB::bind_method(D_METHOD("set_gravity", "accel_vec"), &CPUParticles2D::set_gravity);
ClassDB::bind_method(D_METHOD("get_split_scale"), &CPUParticles2D::get_split_scale);
ClassDB::bind_method(D_METHOD("set_split_scale", "split_scale"), &CPUParticles2D::set_split_scale);
ClassDB::bind_method(D_METHOD("get_scale_curve_x"), &CPUParticles2D::get_scale_curve_x);
ClassDB::bind_method(D_METHOD("set_scale_curve_x", "scale_curve"), &CPUParticles2D::set_scale_curve_x);
ClassDB::bind_method(D_METHOD("get_scale_curve_y"), &CPUParticles2D::get_scale_curve_y);
ClassDB::bind_method(D_METHOD("set_scale_curve_y", "scale_curve"), &CPUParticles2D::set_scale_curve_y);
ClassDB::bind_method(D_METHOD("convert_from_particles", "particles"), &CPUParticles2D::convert_from_particles);
ADD_SIGNAL(MethodInfo("finished"));
ADD_GROUP("Emission Shape", "emission_");
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");
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");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "emission_rect_extents", PROPERTY_HINT_NONE, "suffix:px"), "set_emission_rect_extents", "get_emission_rect_extents");
ADD_PROPERTY(PropertyInfo(Variant::PACKED_VECTOR2_ARRAY, "emission_points"), "set_emission_points", "get_emission_points");
ADD_PROPERTY(PropertyInfo(Variant::PACKED_VECTOR2_ARRAY, "emission_normals"), "set_emission_normals", "get_emission_normals");
ADD_PROPERTY(PropertyInfo(Variant::PACKED_COLOR_ARRAY, "emission_colors"), "set_emission_colors", "get_emission_colors");
ADD_GROUP("Particle Flags", "particle_flag_");
ADD_PROPERTYI(PropertyInfo(Variant::BOOL, "particle_flag_align_y"), "set_particle_flag", "get_particle_flag", PARTICLE_FLAG_ALIGN_Y_TO_VELOCITY);
ADD_GROUP("Direction", "");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "direction"), "set_direction", "get_direction");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "spread", PROPERTY_HINT_RANGE, "0,180,0.01"), "set_spread", "get_spread");
ADD_GROUP("Gravity", "");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "gravity", PROPERTY_HINT_NONE, U"suffix:px/s\u00B2"), "set_gravity", "get_gravity");
ADD_GROUP("Initial Velocity", "initial_");
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);
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);
ADD_GROUP("Angular Velocity", "angular_");
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);
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);
ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "angular_velocity_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_ANGULAR_VELOCITY);
ADD_GROUP("Orbit Velocity", "orbit_");
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);
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);
ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "orbit_velocity_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_ORBIT_VELOCITY);
ADD_GROUP("Linear Accel", "linear_");
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);
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);
ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "linear_accel_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_LINEAR_ACCEL);
ADD_GROUP("Radial Accel", "radial_");
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);
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);
ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "radial_accel_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_RADIAL_ACCEL);
ADD_GROUP("Tangential Accel", "tangential_");
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);
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);
ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "tangential_accel_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_TANGENTIAL_ACCEL);
ADD_GROUP("Damping", "");
ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "damping_min", PROPERTY_HINT_RANGE, "0,100,0.001,or_greater"), "set_param_min", "get_param_min", PARAM_DAMPING);
ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "damping_max", PROPERTY_HINT_RANGE, "0,100,0.001,or_greater"), "set_param_max", "get_param_max", PARAM_DAMPING);
ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "damping_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_DAMPING);
ADD_GROUP("Angle", "");
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);
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);
ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "angle_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_ANGLE);
ADD_GROUP("Scale", "");
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);
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);
ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "scale_amount_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_SCALE);
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "split_scale"), "set_split_scale", "get_split_scale");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "scale_curve_x", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_scale_curve_x", "get_scale_curve_x");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "scale_curve_y", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_scale_curve_y", "get_scale_curve_y");
ADD_GROUP("Color", "");
ADD_PROPERTY(PropertyInfo(Variant::COLOR, "color"), "set_color", "get_color");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "color_ramp", PROPERTY_HINT_RESOURCE_TYPE, "Gradient"), "set_color_ramp", "get_color_ramp");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "color_initial_ramp", PROPERTY_HINT_RESOURCE_TYPE, "Gradient"), "set_color_initial_ramp", "get_color_initial_ramp");
ADD_GROUP("Hue Variation", "hue_");
ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "hue_variation_min", PROPERTY_HINT_RANGE, "-1,1,0.01"), "set_param_min", "get_param_min", PARAM_HUE_VARIATION);
ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "hue_variation_max", PROPERTY_HINT_RANGE, "-1,1,0.01"), "set_param_max", "get_param_max", PARAM_HUE_VARIATION);
ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "hue_variation_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_HUE_VARIATION);
ADD_GROUP("Animation", "anim_");
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);
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);
ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "anim_speed_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_ANIM_SPEED);
ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "anim_offset_min", PROPERTY_HINT_RANGE, "0,1,0.0001"), "set_param_min", "get_param_min", PARAM_ANIM_OFFSET);
ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "anim_offset_max", PROPERTY_HINT_RANGE, "0,1,0.0001"), "set_param_max", "get_param_max", PARAM_ANIM_OFFSET);
ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "anim_offset_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_ANIM_OFFSET);
BIND_ENUM_CONSTANT(PARAM_INITIAL_LINEAR_VELOCITY);
BIND_ENUM_CONSTANT(PARAM_ANGULAR_VELOCITY);
BIND_ENUM_CONSTANT(PARAM_ORBIT_VELOCITY);
BIND_ENUM_CONSTANT(PARAM_LINEAR_ACCEL);
BIND_ENUM_CONSTANT(PARAM_RADIAL_ACCEL);
BIND_ENUM_CONSTANT(PARAM_TANGENTIAL_ACCEL);
BIND_ENUM_CONSTANT(PARAM_DAMPING);
BIND_ENUM_CONSTANT(PARAM_ANGLE);
BIND_ENUM_CONSTANT(PARAM_SCALE);
BIND_ENUM_CONSTANT(PARAM_HUE_VARIATION);
BIND_ENUM_CONSTANT(PARAM_ANIM_SPEED);
BIND_ENUM_CONSTANT(PARAM_ANIM_OFFSET);
BIND_ENUM_CONSTANT(PARAM_MAX);
BIND_ENUM_CONSTANT(PARTICLE_FLAG_ALIGN_Y_TO_VELOCITY);
BIND_ENUM_CONSTANT(PARTICLE_FLAG_ROTATE_Y); // Unused, but exposed for consistency with 3D.
BIND_ENUM_CONSTANT(PARTICLE_FLAG_DISABLE_Z); // Unused, but exposed for consistency with 3D.
BIND_ENUM_CONSTANT(PARTICLE_FLAG_MAX);
BIND_ENUM_CONSTANT(EMISSION_SHAPE_POINT);
BIND_ENUM_CONSTANT(EMISSION_SHAPE_SPHERE);
BIND_ENUM_CONSTANT(EMISSION_SHAPE_SPHERE_SURFACE);
BIND_ENUM_CONSTANT(EMISSION_SHAPE_RECTANGLE);
BIND_ENUM_CONSTANT(EMISSION_SHAPE_POINTS);
BIND_ENUM_CONSTANT(EMISSION_SHAPE_DIRECTED_POINTS);
BIND_ENUM_CONSTANT(EMISSION_SHAPE_MAX);
}
CPUParticles2D::CPUParticles2D() {
mesh = RenderingServer::get_singleton()->mesh_create();
multimesh = RenderingServer::get_singleton()->multimesh_create();
RenderingServer::get_singleton()->multimesh_set_mesh(multimesh, mesh);
set_emitting(true);
set_amount(8);
set_use_local_coordinates(false);
set_param_min(PARAM_INITIAL_LINEAR_VELOCITY, 0);
set_param_min(PARAM_ANGULAR_VELOCITY, 0);
set_param_min(PARAM_ORBIT_VELOCITY, 0);
set_param_min(PARAM_LINEAR_ACCEL, 0);
set_param_min(PARAM_RADIAL_ACCEL, 0);
set_param_min(PARAM_TANGENTIAL_ACCEL, 0);
set_param_min(PARAM_DAMPING, 0);
set_param_min(PARAM_ANGLE, 0);
set_param_min(PARAM_SCALE, 1);
set_param_min(PARAM_HUE_VARIATION, 0);
set_param_min(PARAM_ANIM_SPEED, 0);
set_param_min(PARAM_ANIM_OFFSET, 0);
set_param_max(PARAM_INITIAL_LINEAR_VELOCITY, 0);
set_param_max(PARAM_ANGULAR_VELOCITY, 0);
set_param_max(PARAM_ORBIT_VELOCITY, 0);
set_param_max(PARAM_LINEAR_ACCEL, 0);
set_param_max(PARAM_RADIAL_ACCEL, 0);
set_param_max(PARAM_TANGENTIAL_ACCEL, 0);
set_param_max(PARAM_DAMPING, 0);
set_param_max(PARAM_ANGLE, 0);
set_param_max(PARAM_SCALE, 1);
set_param_max(PARAM_HUE_VARIATION, 0);
set_param_max(PARAM_ANIM_SPEED, 0);
set_param_max(PARAM_ANIM_OFFSET, 0);
for (int i = 0; i < PARTICLE_FLAG_MAX; i++) {
particle_flags[i] = false;
}
set_color(Color(1, 1, 1, 1));
_update_mesh_texture();
}
CPUParticles2D::~CPUParticles2D() {
ERR_FAIL_NULL(RenderingServer::get_singleton());
RS::get_singleton()->free(multimesh);
RS::get_singleton()->free(mesh);
}
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