7482a0d26d
Fixes #15834 ## Migration Guide The APIs of `Time`, `Timer` and `Stopwatch` have been cleaned up for consistency with each other and the standard library's `Duration` type. The following methods have been renamed: - `Stowatch::paused` -> `Stopwatch::is_paused` - `Time::elapsed_seconds` -> `Time::elasped_secs` (including `_f64` and `_wrapped` variants)
48 lines
1.2 KiB
Rust
48 lines
1.2 KiB
Rust
//! Displays a single [`Sprite`] tiled in a grid, with a scaling animation
|
|
|
|
use bevy::prelude::*;
|
|
|
|
fn main() {
|
|
App::new()
|
|
.add_plugins(DefaultPlugins)
|
|
.add_systems(Startup, setup)
|
|
.add_systems(Update, animate)
|
|
.run();
|
|
}
|
|
|
|
#[derive(Resource)]
|
|
struct AnimationState {
|
|
min: f32,
|
|
max: f32,
|
|
current: f32,
|
|
speed: f32,
|
|
}
|
|
|
|
fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
|
|
commands.spawn(Camera2d);
|
|
commands.insert_resource(AnimationState {
|
|
min: 128.0,
|
|
max: 512.0,
|
|
current: 128.0,
|
|
speed: 50.0,
|
|
});
|
|
commands.spawn((
|
|
Sprite::from_image(asset_server.load("branding/icon.png")),
|
|
ImageScaleMode::Tiled {
|
|
tile_x: true,
|
|
tile_y: true,
|
|
stretch_value: 0.5, // The image will tile every 128px
|
|
},
|
|
));
|
|
}
|
|
|
|
fn animate(mut sprites: Query<&mut Sprite>, mut state: ResMut<AnimationState>, time: Res<Time>) {
|
|
if state.current >= state.max || state.current <= state.min {
|
|
state.speed = -state.speed;
|
|
};
|
|
state.current += state.speed * time.delta_secs();
|
|
for mut sprite in &mut sprites {
|
|
sprite.custom_size = Some(Vec2::splat(state.current));
|
|
}
|
|
}
|