Struct SpatialGrid 

pub struct SpatialGrid {
    grid: HashMap<Vec2<i32>, Vec<Entity>, GridHasher>,
    large_grid: HashMap<Vec2<i32>, Vec<Entity>, GridHasher>,
    lg2_cell_size: usize,
    lg2_large_cell_size: usize,
    radius_cutoff: u32,
    largest_large_radius: u32,
}

Fields

grid: HashMap<Vec2<i32>, Vec<Entity>, GridHasher>

large_grid: HashMap<Vec2<i32>, Vec<Entity>, GridHasher>

lg2_cell_size: usize

lg2_large_cell_size: usize

radius_cutoff: u32

largest_large_radius: u32

Implementations

impl SpatialGrid

pub fn new( lg2_cell_size: usize, lg2_large_cell_size: usize, radius_cutoff: u32, ) -> Self

pub fn insert(&mut self, pos: Vec2<i32>, radius: u32, entity: Entity)

Add an entity at the provided 2d pos into the spatial grid

pub fn in_aabr<'a>( &'a self, aabr: Aabr<i32>, ) -> impl Iterator<Item = Entity> + 'a

Get an iterator over the entities overlapping the provided axis aligned bounding region. NOTE: for best optimization of the iterator use for_each rather than a for loop.

pub fn in_circle_aabr( &self, center: Vec2<f32>, radius: f32, ) -> impl Iterator<Item = Entity> + '_

Get an iterator over the entities overlapping the axis aligned bounding region that contains the provided circle NOTE: for best optimization of the iterator use for_each rather than a for loop

pub fn clear(&mut self)

Trait Implementations

impl Debug for SpatialGrid

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

Formats the value using the given formatter.