Struct BounceBox 

pub struct BounceBox {
    pub bounds: Rect,
}

Reflects predicted next positions against a rectangle. Place last when other operators change velocity; arbitrary multiple wall crossings are supported.

Fields

bounds: Rect

Rectangle the particles bounce inside.

Implementations

impl BounceBox

pub fn new(bounds: Rect) -> Self

Creates a reflecting rectangle.

Trait Implementations

impl Clone for BounceBox

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for BounceBox

impl Debug for BounceBox

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

Formats the value using the given formatter.

impl ParticleModifier for BounceBox

fn apply( &self, particle: &mut Particle, step: f32, _: Time, _: &mut Random, ) -> Result<(), ValidationError>

Updates one live particle; index and canonical age remain engine-owned.

fn resets_color(&self) -> bool

Requests birth-color restoration before the ordered modifier chain. Multiplicative lifetime energy curves use this to avoid frame-count accumulation.

fn work(&self) -> u64

Conservative per-particle operator work charged before replay.

fn apply_event( &self, particle: &mut Particle, step_seconds: f32, time: Time, random: &mut Random, ) -> Result<bool, ValidationError>

Optional predicted-step collision response, preserving the original callback API.