bevy-compose 0.1.0

Reactive UI framework for Bevy
Documentation
use bevy::prelude::*;
use bevy_compose::{compose, flex, handler_system, lazy, Compose, Composer};

#[derive(Resource)]
struct Count(i32);

fn ui(count: Res<Count>) -> impl Compose {
    (
        format!("High five count: {}", count.0),
        flex("Up high!").on_click(|mut count: ResMut<Count>| count.0 += 1),
        flex("Down low!").on_click(|mut count: ResMut<Count>| count.0 -= 1),
    )
}

fn main() {
    let mut app = App::new();

    app.world.insert_resource(Count(0));
    app.world.spawn(Composer::new(ui));
    app.world
        .spawn((Camera2dBundle::default(), IsDefaultUiCamera));

    app.add_plugins(DefaultPlugins)
        .add_systems(Update, (compose, handler_system))
        .run();
}