use bevy::{color::palettes::css::*, prelude::*}; use bevy_tweening::{lens::*, *}; mod utils; fn main() { App::default() .add_plugins(DefaultPlugins.set(WindowPlugin { primary_window: Some(Window { title: "SpriteColorLens".to_string(), resolution: (1200., 600.).into(), present_mode: bevy::window::PresentMode::Fifo, // vsync ..default() }), ..default() })) .add_systems(Update, utils::close_on_esc) .add_plugins(TweeningPlugin) .add_systems(Startup, setup) .run(); } fn setup(mut commands: Commands) { commands.spawn(Camera2d::default()); let size = 80.; let spacing = 1.25; let screen_x = 450.; let screen_y = 120.; let mut x = -screen_x; let mut y = screen_y; 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, std::time::Duration::from_secs(1), SpriteColorLens { start: RED.into(), end: BLUE.into(), }, ) .with_repeat_count(RepeatCount::Infinite) .with_repeat_strategy(RepeatStrategy::MirroredRepeat); commands.spawn(( Sprite { color: Color::BLACK, custom_size: Some(Vec2::new(size, size)), ..default() }, Transform::from_translation(Vec3::new(x, y, 0.)), Animator::new(tween), )); y -= size * spacing; if y < -screen_y { x += size * spacing; y = screen_y; } } }