generated from tipragot/rust
Add utils for hexagonal grild #50
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@ -3,7 +3,7 @@
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use std::collections::HashSet;
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use std::collections::HashSet;
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use std::ops;
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use std::ops;
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/// Contains all ``HexPosition`` neighbors of a ``HexPosition``
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/// Contains all "HexPosition" neighbors of "HexPosition"
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pub struct GroupHexPosition(pub HashSet<HexPosition>);
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pub struct GroupHexPosition(pub HashSet<HexPosition>);
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impl GroupHexPosition {
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impl GroupHexPosition {
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@ -12,53 +12,8 @@ impl GroupHexPosition {
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GroupHexPosition(hexes)
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GroupHexPosition(hexes)
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}
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}
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/// Return an intersection of two ``GroupHexPosition``
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/// Removes the origin (`HexPosition { q: 0, r: 0 }`) of a
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///
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/// "GroupHexPosition"
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/// ## example
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/// ```
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/// use std::collections::HashSet;
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///
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/// use border_wars::hex::{GroupHexPosition, HexPosition};
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///
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/// let vec1 = GroupHexPosition::new(HashSet::from([
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/// HexPosition { q: 0, r: 0 },
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/// HexPosition { q: 1, r: -1 },
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/// ]));
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///
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/// let vec2 = GroupHexPosition::new(HashSet::from([
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/// HexPosition { q: 0, r: 0 },
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/// HexPosition { q: 1, r: 1 },
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/// ]));
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///
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/// let iter = vec1.iter_with(&vec2);
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/// assert!(iter.0.contains(&HexPosition { q: 0, r: 0 }));
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/// ```
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pub fn iter_with(&self, other: &GroupHexPosition) -> GroupHexPosition {
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let mut result = HashSet::new();
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for pos_1 in self.0.iter() {
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if other.0.contains(pos_1) {
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result.insert(*pos_1);
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}
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}
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GroupHexPosition::new(result)
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}
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/// Removes the origin (``HexPosition { q: 0, r: 0 }``) of a
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/// ``GroupHexPosition``
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///
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/// ## example
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/// ```
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/// use std::collections::HashSet;
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///
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/// use border_wars::hex::{GroupHexPosition, HexPosition};
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///
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/// let mut vec = GroupHexPosition::new(HashSet::from([
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/// HexPosition { q: 0, r: 0 },
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/// HexPosition { q: 1, r: -1 },
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/// ]));
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/// vec.remove_origin();
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/// assert_eq!(vec.0.len(), 1);
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/// ```
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pub fn remove_origin(&mut self) -> &mut Self {
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pub fn remove_origin(&mut self) -> &mut Self {
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self.0.remove(&HexPosition { q: 0, r: 0 });
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self.0.remove(&HexPosition { q: 0, r: 0 });
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self
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self
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@ -78,36 +33,13 @@ pub struct HexPosition {
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}
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}
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impl HexPosition {
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impl HexPosition {
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/// Returns the distance between two ``HexPosition``
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/// Returns the distance between two "HexPosition"
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///
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/// ## example
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/// ```
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/// use std::collections::HashSet;
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///
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/// use border_wars::hex::HexPosition;
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///
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/// let hex1 = HexPosition { q: 0, r: 0 };
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/// let hex2 = HexPosition { q: 1, r: 1 };
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/// let distance = hex1.distance_to(&hex2);
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/// assert_eq!(distance, 2.0);
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/// ```
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pub fn distance_to(&self, other: &HexPosition) -> f32 {
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pub fn distance_to(&self, other: &HexPosition) -> f32 {
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(((self.q - other.q).abs()
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+ (self.r - other.r).abs()
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1.
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+ (self.q + self.r - other.q - other.r).abs())
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/ 2) as f32
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}
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}
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/// Returns all positions in a given range
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/// Returns all positions in a given range
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///
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/// ## example
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/// ```
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/// use border_wars::hex::HexPosition;
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///
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/// let hex = HexPosition { q: 0, r: 0 };
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/// let positions = hex.range(1);
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/// assert_eq!(positions.0.len(), 7);
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/// ```
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pub fn range(&self, range: i32) -> GroupHexPosition {
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pub fn range(&self, range: i32) -> GroupHexPosition {
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let mut positions = HashSet::new();
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let mut positions = HashSet::new();
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for q in (-range)..=range {
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for q in (-range)..=range {
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