fish-cannard/border-wars
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Add utils for hexagonal grild #50

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tipragot merged 23 commits from hex-utils into main 2024-02-14 17:49:08 +00:00
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crates/border-wars/src/hex.rs
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@ -4,7 +4,8 @@ use std::collections::HashSet;
use std::ops; use std::ops;
/// Hexagonal position (in a hexagonal grid). /// Hexagonal position (in a hexagonal grid).
/// We are using the axial coordinate system explained in this [documentation](https://www.redblobgames.com/grids/hexagons/#coordinates). /// We are using the axial coordinate system explained in this
/// [documentation](https://www.redblobgames.com/grids/hexagons/#coordinates).
#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)] #[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
pub struct HexPosition { pub struct HexPosition {
/// Q coordinate /// Q coordinate
@ -19,7 +20,8 @@ impl HexPosition {
/// ///
/// # How does it work ? /// # How does it work ?
/// ///
/// Hexagonal grid using the [cube](https://www.redblobgames.com/grids/hexagons/#coordinates) coordinate system, /// Hexagonal grid using the
/// [cube coordinate system](https://www.redblobgames.com/grids/hexagons/#coordinates),
/// is like a cube in 2D space. /// is like a cube in 2D space.
/// The Manhattan distance between two positions is equal to: the half of /// The Manhattan distance between two positions is equal to: the half of
/// the sum of abs(dx) + abs(dy) + abs(dz) /// the sum of abs(dx) + abs(dy) + abs(dz)