Struct GridParticleCollision 

pub struct GridParticleCollision {
    pub cell_size: f32,
    pub particle_radius: f32,
    pub restitution: f32,
}

GPU-style particle collision using a grid-based broad phase.

Assigns each particle to a grid cell, then checks only neighbours.

Fields

cell_size: f32

Cell size.

particle_radius: f32

Radius for collision detection.

restitution: f32

Restitution coefficient.

Implementations

impl GridParticleCollision

pub fn new(cell_size: f32, particle_radius: f32, restitution: f32) -> Self

Create a new grid collision handler.

pub fn resolve(&self, buffer: &mut ParticleBuffer)

Resolve collisions between all alive particles (O(n) with grid).

Uses a simple hash-grid approach: build cell lists, then check same-cell and adjacent-cell pairs only.