58 lines
1.6 KiB
Rust
58 lines
1.6 KiB
Rust
use bevy::prelude::*;
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fn main() {
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App::build()
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.add_defaults()
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.setup_world(setup)
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.add_system(build_move_system())
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.add_system(bevy::diagnostics::build_fps_printer_system())
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.run();
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}
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fn build_move_system() -> Box<dyn Schedulable> {
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SystemBuilder::new("Move")
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.read_resource::<Time>()
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.with_query(<Write<Node>>::query())
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.build(move |_, world, time, query| {
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for (_i, mut node) in query.iter_mut(world).enumerate() {
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if node.color.r > 0.2 {
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node.position += Vec2::new(0.1 * time.delta_seconds, 0.0);
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// println!("{}", node.position.x());
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}
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}
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})
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}
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fn setup(world: &mut World, _resources: &mut Resources) {
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let mut builder = world.build().add_entity(Camera2dEntity {
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camera: Camera::new(CameraType::Orthographic {
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left: 0.0,
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right: 0.0,
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bottom: 0.0,
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top: 0.0,
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near: 0.0,
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far: 1.0,
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}),
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active_camera_2d: ActiveCamera2d,
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});
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let mut prev = Vec2::default();
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let count = 1000;
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for i in 0..count {
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// 2d camera
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let cur = Vec2::new(1.0, 1.0) * 1.0 + prev;
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builder = builder.add_entity(UiEntity {
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node: Node::new(
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math::vec2(75.0, 75.0) + cur,
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Anchors::new(0.5, 0.5, 0.5, 0.5),
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Margins::new(0.0, 100.0, 0.0, 100.0),
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Color::rgb(0.0 + i as f32 / count as f32, 0.1, 0.1),
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),
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});
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prev = cur;
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}
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builder.build();
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}
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