mirror of
https://github.com/Relintai/pandemonium_engine_minimal.git
synced 2024-11-17 22:17:19 +01:00
341 lines
8.2 KiB
C++
341 lines
8.2 KiB
C++
#ifndef CPU_PARTICLES_2D_H
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#define CPU_PARTICLES_2D_H
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/* cpu_particles_2d.h */
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#include "scene/main/node_2d.h"
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class RID;
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class Texture;
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//#define PANDEMONIUM_CPU_PARTICLES_2D_LEGACY_COMPATIBILITY
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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 Flags {
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FLAG_ALIGN_Y_TO_VELOCITY,
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FLAG_ROTATE_Y, // Unused, but exposed for consistency with 3D.
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FLAG_DISABLE_Z, // Unused, but exposed for consistency with 3D.
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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;
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struct ParticleBase {
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void blank() {
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for (int n = 0; n < 4; n++) {
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custom[n] = 0.0f;
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}
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}
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Transform2D transform;
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Color color;
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float custom[4];
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};
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// Warning - beware of adding non-trivial types
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// to this structure as it is zeroed to initialize in set_amount().
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struct Particle : public ParticleBase {
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void copy_to(ParticleBase &r_o) {
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r_o.transform = transform;
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r_o.color = color;
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memcpy(r_o.custom, custom, sizeof(custom));
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}
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float rotation;
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Vector2 velocity;
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bool active;
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float angle_rand;
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float scale_rand;
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float hue_rot_rand;
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float anim_offset_rand;
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Color start_color_rand;
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float time;
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float lifetime;
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Color base_color;
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uint32_t seed;
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};
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float time;
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float inactive_time;
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float frame_remainder;
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int cycle;
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bool redraw;
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RID mesh;
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RID multimesh;
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PoolVector<Particle> particles;
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LocalVector<ParticleBase> particles_prev;
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PoolVector<float> particle_data;
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PoolVector<float> particle_data_prev;
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PoolVector<int> particle_order;
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struct SortLifetime {
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const Particle *particles;
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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;
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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;
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float lifetime;
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float pre_process_time;
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float explosiveness_ratio;
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float randomness_ratio;
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float lifetime_randomness;
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float speed_scale;
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bool local_coords;
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int fixed_fps;
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bool fractional_delta;
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Transform2D inv_emission_transform;
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DrawOrder draw_order;
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Ref<Texture> texture;
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Ref<Texture> normalmap;
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////////
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Vector2 direction;
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float spread;
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float parameters[PARAM_MAX];
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float randomness[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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Ref<Gradient> color_initial_ramp;
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bool flags[FLAG_MAX];
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EmissionShape emission_shape;
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float emission_sphere_radius;
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Vector2 emission_rect_extents;
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PoolVector<Vector2> emission_points;
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PoolVector<Vector2> emission_normals;
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PoolVector<Color> emission_colors;
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int emission_point_count;
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Vector2 gravity;
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void _update_internal(bool p_on_physics_tick);
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void _particles_process(float p_delta);
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void _particle_process(Particle &r_p, const Transform2D &p_emission_xform, float p_local_delta, float &r_tv);
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void _update_particle_data_buffer();
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Mutex update_mutex;
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// Whether this particle system is interpolated.
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bool _interpolated;
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struct InterpolationData {
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// Whether this particle is non-interpolated, but following an interpolated parent.
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bool interpolated_follow;
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// If doing interpolated follow, we need to keep these updated per tick.
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Transform2D global_xform_curr;
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Transform2D global_xform_prev;
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} _interpolation_data;
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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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void _refresh_interpolation_state();
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template <bool TRANSFORM_PARTICLE>
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void _fill_particle_data(const ParticleBase &p_source, float *r_dest, bool p_active) const {
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if (p_active) {
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#ifdef PANDEMONIUM_CPU_PARTICLES_2D_LEGACY_COMPATIBILITY
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Transform2D t = p_source.transform;
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if (TRANSFORM_PARTICLE) {
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t = inv_emission_transform * t;
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}
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#else
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const Transform2D &t = p_source.transform;
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#endif
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r_dest[0] = t.columns[0][0];
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r_dest[1] = t.columns[1][0];
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r_dest[2] = 0;
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r_dest[3] = t.columns[2][0];
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r_dest[4] = t.columns[0][1];
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r_dest[5] = t.columns[1][1];
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r_dest[6] = 0;
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r_dest[7] = t.columns[2][1];
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Color c = p_source.color;
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uint8_t *data8 = (uint8_t *)&r_dest[8];
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data8[0] = CLAMP(c.r * 255.0, 0, 255);
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data8[1] = CLAMP(c.g * 255.0, 0, 255);
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data8[2] = CLAMP(c.b * 255.0, 0, 255);
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data8[3] = CLAMP(c.a * 255.0, 0, 255);
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r_dest[9] = p_source.custom[0];
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r_dest[10] = p_source.custom[1];
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r_dest[11] = p_source.custom[2];
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r_dest[12] = p_source.custom[3];
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} else {
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memset(r_dest, 0, sizeof(float) * 13);
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}
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}
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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;
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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(float p_lifetime);
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void set_one_shot(bool p_one_shot);
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void set_pre_process_time(float p_time);
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void set_explosiveness_ratio(float p_ratio);
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void set_randomness_ratio(float p_ratio);
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void set_lifetime_randomness(float p_random);
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void set_use_local_coordinates(bool p_enable);
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void set_speed_scale(float p_scale);
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bool is_emitting() const;
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int get_amount() const;
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float get_lifetime() const;
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bool get_one_shot() const;
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float get_pre_process_time() const;
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float get_explosiveness_ratio() const;
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float get_randomness_ratio() const;
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float get_lifetime_randomness() const;
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bool get_use_local_coordinates() const;
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float 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<Texture> &p_texture);
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Ref<Texture> get_texture() const;
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void set_normalmap(const Ref<Texture> &p_normalmap);
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Ref<Texture> get_normalmap() 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(float p_spread);
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float get_spread() const;
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void set_param(Parameter p_param, float p_value);
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float get_param(Parameter p_param) const;
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void set_param_randomness(Parameter p_param, float p_value);
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float get_param_randomness(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_color_initial_ramp(const Ref<Gradient> &p_ramp);
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Ref<Gradient> get_color_initial_ramp() const;
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void set_particle_flag(Flags p_flag, bool p_enable);
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bool get_particle_flag(Flags p_flag) const;
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void set_emission_shape(EmissionShape p_shape);
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void set_emission_sphere_radius(float p_radius);
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void set_emission_rect_extents(Vector2 p_extents);
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void set_emission_points(const PoolVector<Vector2> &p_points);
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void set_emission_normals(const PoolVector<Vector2> &p_normals);
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void set_emission_colors(const PoolVector<Color> &p_colors);
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EmissionShape get_emission_shape() const;
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float get_emission_sphere_radius() const;
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Vector2 get_emission_rect_extents() const;
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PoolVector<Vector2> get_emission_points() const;
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PoolVector<Vector2> get_emission_normals() const;
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PoolVector<Color> get_emission_colors() const;
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void set_gravity(const Vector2 &p_gravity);
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Vector2 get_gravity() const;
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virtual String get_configuration_warning() const;
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void restart();
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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::Flags)
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VARIANT_ENUM_CAST(CPUParticles2D::EmissionShape)
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#endif // CPU_PARTICLES_2D_H
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