bevy_entitiles 0.2.1

A tilemap library for bevy. With many algorithms built in.
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use bevy::{
    ecs::system::Query,
    gizmos::gizmos::Gizmos,
    math::{UVec2, Vec2},
    render::color::Color,
};

use crate::{
    math::aabb::AabbBox2d,
    render::{chunk::RenderChunkStorage, extract::ExtractedTilemap},
    tilemap::Tilemap,
};

#[cfg(feature = "algorithm")]
use crate::algorithm::pathfinding::Path;

pub fn draw_tilemap_aabb(mut gizmos: Gizmos, tilemaps: Query<&Tilemap>) {
    for tilemap in tilemaps.iter() {
        gizmos.rect_2d(
            tilemap.aabb.center(),
            0.,
            Vec2::new(tilemap.aabb.width(), tilemap.aabb.height()),
            Color::RED,
        )
    }
}

pub fn draw_chunk_aabb(mut gizmos: Gizmos, tilemaps: Query<&Tilemap>) {
    for tilemap in tilemaps.iter() {
        let tilemap = ExtractedTilemap {
            id: tilemap.id,
            tile_type: tilemap.tile_type,
            size: tilemap.size,
            tile_size: tilemap.tile_size,
            tile_render_size: tilemap.tile_render_size,
            render_chunk_size: tilemap.render_chunk_size,
            filter_mode: tilemap.filter_mode,
            texture: tilemap.texture.clone(),
            translation: tilemap.translation,
            flip: tilemap.flip,
            aabb: tilemap.aabb.clone(),
            z_order: tilemap.z_order,
        };
        let count = RenderChunkStorage::calculate_render_chunk_count(
            tilemap.size,
            tilemap.render_chunk_size,
        );

        for y in 0..count.y {
            for x in 0..count.x {
                let aabb = AabbBox2d::from_chunk(UVec2::new(x, y), &tilemap);
                gizmos.rect_2d(
                    aabb.center(),
                    0.,
                    Vec2::new(aabb.width(), aabb.height()),
                    Color::GREEN,
                );
            }
        }
    }
}

#[cfg(feature = "algorithm")]
pub fn draw_path(mut gizmos: Gizmos, path_query: Query<&Path>, tilemaps: Query<&Tilemap>) {
    for path in path_query.iter() {
        let tilemap = tilemaps.get(path.get_target_tilemap()).unwrap();

        for node in path.iter() {
            gizmos.circle_2d(tilemap.index_to_world(*node), 10., Color::YELLOW_GREEN);
        }
    }
}