Enum ParticleForce 

pub enum ParticleForce {
    Constant {
        force: Vec3,
    },
    Drag {
        coefficient: f32,
    },
    PointForce {
        position: Vec3,
        strength: f32,
        falloff: Falloff,
    },
    Turbulence {
        strength: f32,
        frequency: f32,
        octaves: u8,
    },
    Vortex {
        axis: Vec3,
        position: Vec3,
        strength: f32,
        falloff_radius: f32,
    },
    WindBlast {
        direction: Vec3,
        min_speed: f32,
        max_speed: f32,
        gust_freq: f32,
    },
    KillPlane {
        y: f32,
    },
    Bounce {
        normal: Vec3,
        d: f32,
        restitution: f32,
    },
    Noise {
        amplitude: Vec3,
    },
    OrbitForce {
        center: Vec3,
        radius: f32,
        strength: f32,
    },
}

A standalone particle force that can be added to a system.

Variants

Constant

Constant directional force (e.g. gravity, wind).

Fields

force: Vec3

Drag

Drag proportional to velocity.

Fields

coefficient: f32

PointForce

Attractor/repulsor at a point.

Fields

position: Vec3

strength: f32

falloff: Falloff

Turbulence

Turbulence using layered noise.

Fields

strength: f32

frequency: f32

octaves: u8

Vortex

Vortex spinning around an axis.

Fields

axis: Vec3

position: Vec3

strength: f32

falloff_radius: f32

WindBlast

Cylindrical wind blast.

Fields

direction: Vec3

min_speed: f32

max_speed: f32

gust_freq: f32

KillPlane

Kill particles below a certain Y.

Fields

y: f32

Bounce

Bounce particles off a plane.

Fields

normal: Vec3

d: f32

restitution: f32

Noise

Velocity noise — random jitter per frame.

Fields

amplitude: Vec3

OrbitForce

Orbit force — pull toward circular orbit.

Fields

center: Vec3

radius: f32

strength: f32

Implementations

impl ParticleForce

pub fn acceleration( &self, p: &MathParticle, time: f32, rng: &mut FastRng, ) -> Vec3

Compute the acceleration this force applies to a particle.

Trait Implementations

impl Clone for ParticleForce

fn clone(&self) -> ParticleForce

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ParticleForce

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.