Support Warning
WebGPU is currently only supported on Chrome starting with version 113, and only on desktop. If they don't work on your configuration, you can check the WebGL2 examples here.sprite_slice.rs:
//! Showcases sprite 9 slice scaling and tiling features, enabling usage of
//! sprites in multiple resolutions while keeping it in proportion
use bevy::prelude::*;
fn main() {
App::new()
.add_plugins(DefaultPlugins)
.add_systems(Startup, setup)
.run();
}
fn spawn_sprites(
commands: &mut Commands,
texture_handle: Handle<Image>,
mut position: Vec3,
slice_border: f32,
style: TextFont,
gap: f32,
) {
let cases = [
// Reference sprite
(
"Original",
style.clone(),
Vec2::splat(100.0),
SpriteImageMode::Auto,
),
// Scaled regular sprite
(
"Stretched",
style.clone(),
Vec2::new(100.0, 200.0),
SpriteImageMode::Auto,
),
// Stretched Scaled sliced sprite
(
"With Slicing",
style.clone(),
Vec2::new(100.0, 200.0),
SpriteImageMode::Sliced(TextureSlicer {
border: BorderRect::square(slice_border),
center_scale_mode: SliceScaleMode::Stretch,
..default()
}),
),
// Scaled sliced sprite
(
"With Tiling",
style.clone(),
Vec2::new(100.0, 200.0),
SpriteImageMode::Sliced(TextureSlicer {
border: BorderRect::square(slice_border),
center_scale_mode: SliceScaleMode::Tile { stretch_value: 0.5 },
sides_scale_mode: SliceScaleMode::Tile { stretch_value: 0.2 },
..default()
}),
),
// Scaled sliced sprite horizontally
(
"With Tiling",
style.clone(),
Vec2::new(300.0, 200.0),
SpriteImageMode::Sliced(TextureSlicer {
border: BorderRect::square(slice_border),
center_scale_mode: SliceScaleMode::Tile { stretch_value: 0.2 },
sides_scale_mode: SliceScaleMode::Tile { stretch_value: 0.3 },
..default()
}),
),
// Scaled sliced sprite horizontally with max scale
(
"With Corners Constrained",
style,
Vec2::new(300.0, 200.0),
SpriteImageMode::Sliced(TextureSlicer {
border: BorderRect::square(slice_border),
center_scale_mode: SliceScaleMode::Tile { stretch_value: 0.1 },
sides_scale_mode: SliceScaleMode::Tile { stretch_value: 0.2 },
max_corner_scale: 0.2,
}),
),
];
for (label, text_style, size, scale_mode) in cases {
position.x += 0.5 * size.x;
let mut cmd = commands.spawn((
Sprite {
image: texture_handle.clone(),
custom_size: Some(size),
image_mode: scale_mode,
..default()
},
Transform::from_translation(position),
));
cmd.with_children(|builder| {
builder.spawn((
Text2d::new(label),
text_style,
TextLayout::new_with_justify(JustifyText::Center),
Transform::from_xyz(0., -0.5 * size.y - 10., 0.0),
bevy::sprite::Anchor::TopCenter,
));
});
position.x += 0.5 * size.x + gap;
}
}
fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
commands.spawn(Camera2d);
let font = asset_server.load("fonts/FiraSans-Bold.ttf");
let style = TextFont {
font: font.clone(),
..default()
};
// Load textures
let handle_1 = asset_server.load("textures/slice_square.png");
let handle_2 = asset_server.load("textures/slice_square_2.png");
spawn_sprites(
&mut commands,
handle_1,
Vec3::new(-600.0, 200.0, 0.0),
200.0,
style.clone(),
40.,
);
spawn_sprites(
&mut commands,
handle_2,
Vec3::new(-600.0, -200.0, 0.0),
80.0,
style,
40.,
);
}