Module particles 

Fixed-size particle pool. Covers the “explosion burst” case 99% of arcade games want:

• Spawn N coloured particles at a point, each with a random velocity spread.
• Each frame: integrate position + velocity, apply gravity, decrement TTL.
• Render as RectFlats into an ordering table, with colour and size tapering as TTL approaches zero.

Const-generic pool size – each consumer picks what fits its scene budget:

static mut PARTICLES: ParticlePool<48> = ParticlePool::new();

Values beyond what you pass in on spawn are 0-initialised; ttl == 0 marks a slot as empty. No allocation, ever.

Structs

Particle

One live particle.

ParticlePool

Fixed-capacity pool of N particles.