mirror of
https://github.com/bevyengine/bevy
synced 2024-11-10 15:14:50 +00:00
b6a647cc01
Adds a `default()` shorthand for `Default::default()` ... because life is too short to constantly type `Default::default()`.
```rust
use bevy::prelude::*;
#[derive(Default)]
struct Foo {
bar: usize,
baz: usize,
}
// Normally you would do this:
let foo = Foo {
bar: 10,
..Default::default()
};
// But now you can do this:
let foo = Foo {
bar: 10,
..default()
};
```
The examples have been adapted to use `..default()`. I've left internal crates as-is for now because they don't pull in the bevy prelude, and the ergonomics of each case should be considered individually.
48 lines
1.5 KiB
Rust
48 lines
1.5 KiB
Rust
use bevy::prelude::*;
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fn main() {
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App::new()
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.add_plugins(DefaultPlugins)
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.add_startup_system(setup)
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.add_system(animate_sprite)
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.run();
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}
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#[derive(Component)]
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struct AnimationTimer(Timer);
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fn animate_sprite(
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time: Res<Time>,
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texture_atlases: Res<Assets<TextureAtlas>>,
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mut query: Query<(
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&mut AnimationTimer,
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&mut TextureAtlasSprite,
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&Handle<TextureAtlas>,
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)>,
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) {
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for (mut timer, mut sprite, texture_atlas_handle) in query.iter_mut() {
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timer.0.tick(time.delta());
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if timer.0.just_finished() {
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let texture_atlas = texture_atlases.get(texture_atlas_handle).unwrap();
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sprite.index = (sprite.index + 1) % texture_atlas.textures.len();
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}
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}
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}
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fn setup(
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mut commands: Commands,
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asset_server: Res<AssetServer>,
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mut texture_atlases: ResMut<Assets<TextureAtlas>>,
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) {
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let texture_handle = asset_server.load("textures/rpg/chars/gabe/gabe-idle-run.png");
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let texture_atlas = TextureAtlas::from_grid(texture_handle, Vec2::new(24.0, 24.0), 7, 1);
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let texture_atlas_handle = texture_atlases.add(texture_atlas);
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commands.spawn_bundle(OrthographicCameraBundle::new_2d());
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commands
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.spawn_bundle(SpriteSheetBundle {
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texture_atlas: texture_atlas_handle,
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transform: Transform::from_scale(Vec3::splat(6.0)),
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..default()
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})
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.insert(AnimationTimer(Timer::from_seconds(0.1, true)));
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}
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