//! Broadphase spatial acceleration structures for rustsim.
//!
//! Provides efficient neighbour queries for dense populations of agents.
//! Currently implemented:
//!
//! - [`UniformGrid2`] — hash-grid over 2-D space.
//! - [`UniformGrid3`] — hash-grid over 3-D space.
//!
//! Both structures use a single scalar cell size. Choose a cell size close
//! to the expected query radius for best pruning.
pub use UniformGrid2;
pub use UniformGrid3;
/// Convenience re-exports.