layers.rs

use bevy::{prelude::*, render::texture::ImageSettings};
use bevy_ecs_tilemap::prelude::*;
mod helpers;

fn startup(mut commands: Commands, asset_server: Res<AssetServer>) {
    commands.spawn_bundle(Camera2dBundle::default());

    let texture_handle: Handle<Image> = asset_server.load("tiles.png");

    let tilemap_size = TilemapSize { x: 32, y: 32 };

    // Layer 1
    let mut tile_storage = TileStorage::empty(tilemap_size);
    let tilemap_entity = commands.spawn().id();

    bevy_ecs_tilemap::helpers::fill_tilemap(
        TileTexture(0),
        tilemap_size,
        TilemapId(tilemap_entity),
        &mut commands,
        &mut tile_storage,
    );

    let tile_size = TilemapTileSize { x: 16.0, y: 16.0 };

    commands
        .entity(tilemap_entity)
        .insert_bundle(TilemapBundle {
            grid_size: TilemapGridSize { x: 16.0, y: 16.0 },
            size: tilemap_size,
            storage: tile_storage,
            texture: TilemapTexture(texture_handle.clone()),
            tile_size,
            transform: bevy_ecs_tilemap::helpers::get_centered_transform_2d(
                &tilemap_size,
                &tile_size,
                0.0,
            ),
            ..Default::default()
        });

    // Layer 2
    let mut tile_storage = TileStorage::empty(tilemap_size);
    let tilemap_entity = commands.spawn().id();

    bevy_ecs_tilemap::helpers::fill_tilemap(
        TileTexture(2),
        tilemap_size,
        TilemapId(tilemap_entity),
        &mut commands,
        &mut tile_storage,
    );

    commands
        .entity(tilemap_entity)
        .insert_bundle(TilemapBundle {
            grid_size: TilemapGridSize { x: 16.0, y: 16.0 },
            size: tilemap_size,
            storage: tile_storage,
            texture: TilemapTexture(texture_handle),
            tile_size: TilemapTileSize { x: 16.0, y: 16.0 },
            transform: bevy_ecs_tilemap::helpers::get_centered_transform_2d(
                &tilemap_size,
                &tile_size,
                1.0,
            ) * Transform::from_xyz(32.0, 32.0, 0.0),
            ..Default::default()
        });
}

fn main() {
    App::new()
        .insert_resource(WindowDescriptor {
            width: 1270.0,
            height: 720.0,
            title: String::from("Layers Example"),
            ..Default::default()
        })
        .insert_resource(ImageSettings::default_nearest())
        .add_plugins(DefaultPlugins)
        .add_plugin(TilemapPlugin)
        .add_startup_system(startup)
        .add_system(helpers::camera::movement)
        .run();
}