Module particles 

Particle emitter builders.

Particles are small images spawned continuously from an emitter. Each particle has properties like velocity, lifetime, and color. The GPU handles rendering, so thousands of particles run smoothly.

use std::f64::consts::PI;
use core_animation::prelude::*;

let emitter = CAEmitterLayerBuilder::new()
    .position(320.0, 320.0)
    .shape(EmitterShape::Point)
    .particle(|p| p
        .birth_rate(100.0)
        .lifetime(5.0)
        .velocity(80.0)
        .emission_range(PI * 2.0)  // all directions
        .color(Color::CYAN)
        .image(ParticleImage::soft_glow(64))
    )
    .build();

For simple point bursts, use PointBurstBuilder instead.

Structs

CAEmitterCellBuilder

Builder for a particle type.

CAEmitterLayerBuilder

Builder for a particle emitter layer.

PointBurstBuilder

Simpler builder for particles bursting outward from a point.

Enums

EmitterMode

Mode determining where on the shape particles spawn.

EmitterShape

Shape of the emitter - where particles spawn.

ParticleImage

Pre-built particle images.

RenderMode

Render mode determining how particles are composited.