bevy_match3 0.5.0

A logic library for quickly adding a match-3 system to any bevy project
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44

use bevy::{math::UVec2, platform::collections::HashSet};

pub(crate) enum MatchDirection {
    Horizontal,
    Vertical,
}

/// Represents the different types of matches made
#[derive(Clone, Debug)]
pub enum Match {
    /// A straight match of 3 or more gems
    Straight(HashSet<UVec2>),
}

/// A collection of matches
#[derive(Default, Clone, Debug)]
pub struct Matches {
    pub(crate) matches: Vec<Match>,
}

impl Matches {
    pub(crate) fn add(&mut self, mat: Match) {
        self.matches.push(mat)
    }

    pub(crate) fn append(&mut self, other: &mut Matches) {
        self.matches.append(&mut other.matches);
    }

    /// Returns the coordinates of all matches in this collection without any repeated values
    pub fn without_duplicates(&self) -> HashSet<UVec2> {
        self.matches
            .iter()
            .flat_map(|mat| match mat {
                Match::Straight(mat) => mat,
            })
            .cloned()
            .collect()
    }

    pub(crate) fn is_empty(&self) -> bool {
        self.matches.is_empty()
    }
}