bsn/
bsn.rs

1//! This example demonstrates how to use BSN to compose scenes.
2use bevy::{prelude::*, text::FontSourceTemplate};
3
4fn main() {
5    App::new()
6        .add_plugins(DefaultPlugins)
7        .add_systems(Startup, scene.spawn())
8        .run();
9}
10
11fn scene() -> impl SceneList {
12    bsn_list![Camera2d, ui()]
13}
14
15fn ui() -> impl Scene {
16    bsn! {
17        Node {
18            width: percent(100),
19            height: percent(100),
20            align_items: AlignItems::Center,
21            justify_content: JustifyContent::Center,
22            column_gap: px(5),
23        }
24        Children [
25            (
26                button("Ok")
27                on(|_event: On<Pointer<Press>>| println!("Ok pressed!"))
28            ),
29            (
30                button("Cancel")
31                on(|_event: On<Pointer<Press>>| println!("Cancel pressed!"))
32                BackgroundColor(Color::srgb(0.4, 0.15, 0.15))
33            ),
34        ]
35    }
36}
37
38fn button(label: &str) -> impl Scene {
39    bsn! {
40        Button
41        Node {
42            width: px(150),
43            height: px(65),
44            border: px(5),
45            border_radius: BorderRadius::MAX,
46            justify_content: JustifyContent::Center,
47            align_items: AlignItems::Center,
48        }
49        BorderColor::from(Color::BLACK)
50        BackgroundColor(Color::srgb(0.15, 0.15, 0.15))
51        Children [(
52            Text(label)
53            TextFont {
54                font: FontSourceTemplate::Handle("fonts/FiraSans-Bold.ttf"),
55                font_size: px(33.0),
56            }
57            TextColor(Color::srgb(0.9, 0.9, 0.9))
58            TextShadow
59        )]
60    }
61}
bsn/bsn.rs

bsn/
bsn.rs
