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Older
use bevy_tweening::{lens::*, *};
fn main() -> Result<(), Box<dyn std::error::Error>> {
App::default()
.insert_resource(WindowDescriptor {
title: "TransformPositionLens".to_string(),
width: 1400.,
height: 600.,
present_mode: bevy::window::PresentMode::Fifo, // vsync
..Default::default()
})
.add_plugins(DefaultPlugins)
.add_startup_system(setup)
.run();
Ok(())
}
fn setup(mut commands: Commands) {
commands.spawn_bundle(OrthographicCameraBundle::new_2d());
let size = 25.;
let spacing = 1.5;
let screen_x = 570.;
let screen_y = 150.;
let mut x = -screen_x;
for ease_function in &[
EaseFunction::QuadraticIn,
EaseFunction::QuadraticOut,
EaseFunction::QuadraticInOut,
EaseFunction::CubicIn,
EaseFunction::CubicOut,
EaseFunction::CubicInOut,
EaseFunction::QuarticIn,
EaseFunction::QuarticOut,
EaseFunction::QuarticInOut,
EaseFunction::QuinticIn,
EaseFunction::QuinticOut,
EaseFunction::QuinticInOut,
EaseFunction::SineIn,
EaseFunction::SineOut,
EaseFunction::SineInOut,
EaseFunction::CircularIn,
EaseFunction::CircularOut,
EaseFunction::CircularInOut,
EaseFunction::ExponentialIn,
EaseFunction::ExponentialOut,
EaseFunction::ExponentialInOut,
EaseFunction::ElasticIn,
EaseFunction::ElasticOut,
EaseFunction::ElasticInOut,
EaseFunction::BackIn,
EaseFunction::BackOut,
EaseFunction::BackInOut,
EaseFunction::BounceIn,
EaseFunction::BounceOut,
EaseFunction::BounceInOut,
let tween = Tween::new(
*ease_function,
TweeningType::PingPong,
std::time::Duration::from_secs(1),
TransformPositionLens {
start: Vec3::new(x, screen_y, 0.),
end: Vec3::new(x, -screen_y, 0.),
},
);
commands
.spawn_bundle(SpriteBundle {
sprite: Sprite {
color: Color::RED,
custom_size: Some(Vec2::new(size, size)),
..Default::default()
},
..Default::default()
})