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_sheet.rs:
use bevy::prelude::*;
fn main() {
App::new()
.add_plugins(DefaultPlugins.set(ImagePlugin::default_nearest())) .add_systems(Startup, setup)
.add_systems(Update, animate_sprite)
.run();
}
#[derive(Component)]
struct AnimationIndices {
first: usize,
last: usize,
}
#[derive(Component, Deref, DerefMut)]
struct AnimationTimer(Timer);
fn animate_sprite(
time: Res<Time>,
mut query: Query<(&AnimationIndices, &mut AnimationTimer, &mut TextureAtlas)>,
) {
for (indices, mut timer, mut atlas) in &mut query {
timer.tick(time.delta());
if timer.just_finished() {
atlas.index = if atlas.index == indices.last {
indices.first
} else {
atlas.index + 1
};
}
}
}
fn setup(
mut commands: Commands,
asset_server: Res<AssetServer>,
mut texture_atlas_layouts: ResMut<Assets<TextureAtlasLayout>>,
) {
let texture = asset_server.load("textures/rpg/chars/gabe/gabe-idle-run.png");
let layout = TextureAtlasLayout::from_grid(UVec2::splat(24), 7, 1, None, None);
let texture_atlas_layout = texture_atlas_layouts.add(layout);
let animation_indices = AnimationIndices { first: 1, last: 6 };
commands.spawn(Camera2dBundle::default());
commands.spawn((
SpriteBundle {
transform: Transform::from_scale(Vec3::splat(6.0)),
texture,
..default()
},
TextureAtlas {
layout: texture_atlas_layout,
index: animation_indices.first,
},
animation_indices,
AnimationTimer(Timer::from_seconds(0.1, TimerMode::Repeating)),
));
}