use bevy::{color::palettes, prelude::*};
use bevy_easings::Ease;
fn main() -> Result<(), Box<dyn std::error::Error>> {
App::default()
.add_plugins(DefaultPlugins)
.add_plugins(bevy_easings::EasingsPlugin::default())
.add_systems(Startup, setup)
.run();
Ok(())
}
fn setup(mut commands: Commands) {
commands.spawn(Camera2d);
let size = 80.;
let spacing = 1.6;
let screen_x = 570.;
let screen_y = 150.;
let mut x = -screen_x;
let mut y = screen_y;
for ease_function in &[
bevy_easings::EaseFunction::QuadraticIn,
bevy_easings::EaseFunction::QuadraticOut,
bevy_easings::EaseFunction::QuadraticInOut,
bevy_easings::EaseFunction::CubicIn,
bevy_easings::EaseFunction::CubicOut,
bevy_easings::EaseFunction::CubicInOut,
bevy_easings::EaseFunction::QuarticIn,
bevy_easings::EaseFunction::QuarticOut,
bevy_easings::EaseFunction::QuarticInOut,
bevy_easings::EaseFunction::QuinticIn,
bevy_easings::EaseFunction::QuinticOut,
bevy_easings::EaseFunction::QuinticInOut,
bevy_easings::EaseFunction::SineIn,
bevy_easings::EaseFunction::SineOut,
bevy_easings::EaseFunction::SineInOut,
bevy_easings::EaseFunction::CircularIn,
bevy_easings::EaseFunction::CircularOut,
bevy_easings::EaseFunction::CircularInOut,
bevy_easings::EaseFunction::ExponentialIn,
bevy_easings::EaseFunction::ExponentialOut,
bevy_easings::EaseFunction::ExponentialInOut,
bevy_easings::EaseFunction::ElasticIn,
bevy_easings::EaseFunction::ElasticOut,
bevy_easings::EaseFunction::ElasticInOut,
bevy_easings::EaseFunction::BackIn,
bevy_easings::EaseFunction::BackOut,
bevy_easings::EaseFunction::BackInOut,
bevy_easings::EaseFunction::BounceIn,
bevy_easings::EaseFunction::BounceOut,
bevy_easings::EaseFunction::BounceInOut,
] {
commands
.spawn(Transform::from_translation(Vec3::new(x, y, 0.)))
.with_children(|parent| {
parent.spawn((
Sprite::from_color(palettes::basic::RED, Vec2::new(size, size)),
Transform::default().ease_to(
Transform::from_rotation(Quat::from_axis_angle(
Vec3::Z,
std::f32::consts::PI / 2.,
)),
*ease_function,
bevy_easings::EasingType::PingPong {
duration: std::time::Duration::from_secs(1),
pause: Some(std::time::Duration::from_millis(500)),
},
),
));
});
y -= size * spacing;
if y < -screen_y {
x += size * spacing;
y = screen_y;
}
}
}