295 lines
8.6 KiB
C++
295 lines
8.6 KiB
C++
/*************************************************************************/
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/* cpu_particles_2d.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifndef CPU_PARTICLES_2D_H
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#define CPU_PARTICLES_2D_H
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#include "scene/2d/node_2d.h"
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class CPUParticles2D : public Node2D {
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private:
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GDCLASS(CPUParticles2D, Node2D);
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public:
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enum DrawOrder {
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DRAW_ORDER_INDEX,
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DRAW_ORDER_LIFETIME,
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};
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enum Parameter {
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PARAM_INITIAL_LINEAR_VELOCITY,
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PARAM_ANGULAR_VELOCITY,
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PARAM_ORBIT_VELOCITY,
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PARAM_LINEAR_ACCEL,
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PARAM_RADIAL_ACCEL,
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PARAM_TANGENTIAL_ACCEL,
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PARAM_DAMPING,
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PARAM_ANGLE,
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PARAM_SCALE,
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PARAM_HUE_VARIATION,
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PARAM_ANIM_SPEED,
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PARAM_ANIM_OFFSET,
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PARAM_MAX
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};
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enum ParticleFlags {
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PARTICLE_FLAG_ALIGN_Y_TO_VELOCITY,
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PARTICLE_FLAG_ROTATE_Y, // Unused, but exposed for consistency with 3D.
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PARTICLE_FLAG_DISABLE_Z, // Unused, but exposed for consistency with 3D.
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PARTICLE_FLAG_MAX
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};
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enum EmissionShape {
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EMISSION_SHAPE_POINT,
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EMISSION_SHAPE_SPHERE,
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EMISSION_SHAPE_RECTANGLE,
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EMISSION_SHAPE_POINTS,
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EMISSION_SHAPE_DIRECTED_POINTS,
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EMISSION_SHAPE_MAX
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};
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private:
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bool emitting = false;
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struct Particle {
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Transform2D transform;
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Color color;
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real_t custom[4] = {};
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real_t rotation = 0.0;
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Vector2 velocity;
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bool active = false;
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real_t angle_rand = 0.0;
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real_t scale_rand = 0.0;
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real_t hue_rot_rand = 0.0;
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real_t anim_offset_rand = 0.0;
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double time = 0.0;
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double lifetime = 0.0;
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Color base_color;
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uint32_t seed = 0;
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};
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double time = 0.0;
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double inactive_time = 0.0;
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double frame_remainder = 0.0;
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int cycle = 0;
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bool redraw = false;
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RID mesh;
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RID multimesh;
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Vector<Particle> particles;
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Vector<float> particle_data;
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Vector<int> particle_order;
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struct SortLifetime {
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const Particle *particles = nullptr;
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bool operator()(int p_a, int p_b) const {
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return particles[p_a].time > particles[p_b].time;
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}
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};
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struct SortAxis {
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const Particle *particles = nullptr;
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Vector2 axis;
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bool operator()(int p_a, int p_b) const {
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return axis.dot(particles[p_a].transform[2]) < axis.dot(particles[p_b].transform[2]);
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}
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};
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//
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bool one_shot = false;
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double lifetime = 1.0;
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double pre_process_time = 0.0;
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real_t explosiveness_ratio = 0.0;
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real_t randomness_ratio = 0.0;
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double lifetime_randomness = 0.0;
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double speed_scale = 1.0;
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bool local_coords;
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int fixed_fps = 0;
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bool fractional_delta = true;
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Transform2D inv_emission_transform;
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DrawOrder draw_order = DRAW_ORDER_INDEX;
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Ref<Texture2D> texture;
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////////
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Vector2 direction = Vector2(1, 0);
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real_t spread = 45.0;
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real_t parameters_min[PARAM_MAX];
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real_t parameters_max[PARAM_MAX];
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Ref<Curve> curve_parameters[PARAM_MAX];
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Color color;
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Ref<Gradient> color_ramp;
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bool particle_flags[PARTICLE_FLAG_MAX];
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EmissionShape emission_shape = EMISSION_SHAPE_POINT;
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real_t emission_sphere_radius = 1.0;
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Vector2 emission_rect_extents = Vector2(1, 1);
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Vector<Vector2> emission_points;
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Vector<Vector2> emission_normals;
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Vector<Color> emission_colors;
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int emission_point_count = 0;
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Ref<Curve> scale_curve_x;
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Ref<Curve> scale_curve_y;
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bool split_scale = false;
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Vector2 gravity = Vector2(0, 980);
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void _update_internal();
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void _particles_process(double p_delta);
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void _update_particle_data_buffer();
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Mutex update_mutex;
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void _update_render_thread();
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void _update_mesh_texture();
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void _set_redraw(bool p_redraw);
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void _texture_changed();
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protected:
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static void _bind_methods();
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void _notification(int p_what);
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virtual void _validate_property(PropertyInfo &property) const override;
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public:
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void set_emitting(bool p_emitting);
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void set_amount(int p_amount);
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void set_lifetime(double p_lifetime);
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void set_one_shot(bool p_one_shot);
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void set_pre_process_time(double p_time);
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void set_explosiveness_ratio(real_t p_ratio);
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void set_randomness_ratio(real_t p_ratio);
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void set_lifetime_randomness(double p_random);
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void set_use_local_coordinates(bool p_enable);
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void set_speed_scale(double p_scale);
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bool is_emitting() const;
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int get_amount() const;
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double get_lifetime() const;
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bool get_one_shot() const;
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double get_pre_process_time() const;
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real_t get_explosiveness_ratio() const;
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real_t get_randomness_ratio() const;
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double get_lifetime_randomness() const;
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bool get_use_local_coordinates() const;
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double get_speed_scale() const;
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void set_fixed_fps(int p_count);
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int get_fixed_fps() const;
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void set_fractional_delta(bool p_enable);
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bool get_fractional_delta() const;
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void set_draw_order(DrawOrder p_order);
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DrawOrder get_draw_order() const;
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void set_texture(const Ref<Texture2D> &p_texture);
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Ref<Texture2D> get_texture() const;
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///////////////////
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void set_direction(Vector2 p_direction);
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Vector2 get_direction() const;
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void set_spread(real_t p_spread);
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real_t get_spread() const;
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void set_param_min(Parameter p_param, real_t p_value);
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real_t get_param_min(Parameter p_param) const;
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void set_param_max(Parameter p_param, real_t p_value);
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real_t get_param_max(Parameter p_param) const;
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void set_param_curve(Parameter p_param, const Ref<Curve> &p_curve);
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Ref<Curve> get_param_curve(Parameter p_param) const;
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void set_color(const Color &p_color);
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Color get_color() const;
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void set_color_ramp(const Ref<Gradient> &p_ramp);
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Ref<Gradient> get_color_ramp() const;
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void set_particle_flag(ParticleFlags p_particle_flag, bool p_enable);
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bool get_particle_flag(ParticleFlags p_particle_flag) const;
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void set_emission_shape(EmissionShape p_shape);
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void set_emission_sphere_radius(real_t p_radius);
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void set_emission_rect_extents(Vector2 p_extents);
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void set_emission_points(const Vector<Vector2> &p_points);
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void set_emission_normals(const Vector<Vector2> &p_normals);
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void set_emission_colors(const Vector<Color> &p_colors);
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void set_scale_curve_x(Ref<Curve> p_scale_curve);
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void set_scale_curve_y(Ref<Curve> p_scale_curve);
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void set_split_scale(bool p_split_scale);
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EmissionShape get_emission_shape() const;
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real_t get_emission_sphere_radius() const;
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Vector2 get_emission_rect_extents() const;
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Vector<Vector2> get_emission_points() const;
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Vector<Vector2> get_emission_normals() const;
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Vector<Color> get_emission_colors() const;
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Ref<Curve> get_scale_curve_x() const;
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Ref<Curve> get_scale_curve_y() const;
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bool get_split_scale();
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void set_gravity(const Vector2 &p_gravity);
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Vector2 get_gravity() const;
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TypedArray<String> get_configuration_warnings() const override;
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void restart();
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void convert_from_particles(Node *p_particles);
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CPUParticles2D();
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~CPUParticles2D();
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};
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VARIANT_ENUM_CAST(CPUParticles2D::DrawOrder)
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VARIANT_ENUM_CAST(CPUParticles2D::Parameter)
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VARIANT_ENUM_CAST(CPUParticles2D::ParticleFlags)
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VARIANT_ENUM_CAST(CPUParticles2D::EmissionShape)
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#endif // CPU_PARTICLES_2D_H
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