Static gridly::prelude::ORTHOGONAL_ADJACENCIES

pub static ORTHOGONAL_ADJACENCIES: [Vector; 4]

This array contains unit vectors associated with the 4 orthogonally adjacent directions. It is intended to allow for easy iteration over orthogonally adjacent locations. The order of the vectors is unspecified and should not be relied upon.

Example

use gridly::prelude::*;
use gridly::shorthand::*;
let root = L(1, 2);
let adjacent: Vec<Location> = ORTHOGONAL_ADJACENCIES.iter().map(|v| root + v).collect();

assert!(adjacent.contains(&L(0, 2)));
assert!(adjacent.contains(&L(2, 2)));
assert!(adjacent.contains(&L(1, 3)));
assert!(adjacent.contains(&L(1, 1)));
assert_eq!(adjacent.len(), 4);