Struct ParticleLifetimeManager 

pub struct ParticleLifetimeManager {
    pub total_spawned: usize,
    pub total_expired: usize,
    pub min_observed_lifetime: f32,
    pub max_observed_lifetime: f32,
}

Lifetime manager that also records spawn events for analysis.

Fields

total_spawned: usize

Total particles ever spawned.

total_expired: usize

Total particles that have died naturally.

min_observed_lifetime: f32

Minimum observed lifetime seen.

max_observed_lifetime: f32

Maximum observed lifetime seen.

Implementations

impl ParticleLifetimeManager

pub fn new() -> Self

Create a new lifetime manager.

pub fn record_spawn(&mut self, lifetime: f32)

Record a spawn event with initial lifetime.

pub fn record_expiration(&mut self)

Record an expiration (natural death).

pub fn retire_expired(&mut self, buffer: &mut ParticleBuffer) -> usize

Scan a buffer and retire particles that have expired. Returns the number retired.

pub fn alive_fraction(&self, buffer: &ParticleBuffer) -> f32

Alive fraction: alive / total_spawned.

Trait Implementations

impl Default for ParticleLifetimeManager

fn default() -> Self

Returns the “default value” for a type.