bevy/examples/window/screenshot.rs
Joona Aalto de888a373d
Migrate lights to required components (#15554)
# Objective

Another step in the migration to required components: lights!

Note that this does not include `EnvironmentMapLight` or reflection
probes yet, because their API hasn't been fully chosen yet.

## Solution

As per the [selected
proposals](https://hackmd.io/@bevy/required_components/%2FLLnzwz9XTxiD7i2jiUXkJg):

- Deprecate `PointLightBundle` in favor of the `PointLight` component
- Deprecate `SpotLightBundle` in favor of the `PointLight` component
- Deprecate `DirectionalLightBundle` in favor of the `DirectionalLight`
component

## Testing

I ran some examples with lights.

---

## Migration Guide

`PointLightBundle`, `SpotLightBundle`, and `DirectionalLightBundle` have
been deprecated. Use the `PointLight`, `SpotLight`, and
`DirectionalLight` components instead. Adding them will now insert the
other components required by them automatically.
2024-10-01 03:20:43 +00:00

101 lines
2.6 KiB
Rust

//! An example showing how to save screenshots to disk
use bevy::{
prelude::*,
render::view::{
cursor::CursorIcon,
screenshot::{save_to_disk, Capturing, Screenshot},
},
window::SystemCursorIcon,
};
fn main() {
App::new()
.add_plugins(DefaultPlugins)
.add_systems(Startup, setup)
.add_systems(Update, (screenshot_on_spacebar, screenshot_saving))
.run();
}
fn screenshot_on_spacebar(
mut commands: Commands,
input: Res<ButtonInput<KeyCode>>,
mut counter: Local<u32>,
) {
if input.just_pressed(KeyCode::Space) {
let path = format!("./screenshot-{}.png", *counter);
*counter += 1;
commands
.spawn(Screenshot::primary_window())
.observe(save_to_disk(path));
}
}
fn screenshot_saving(
mut commands: Commands,
screenshot_saving: Query<Entity, With<Capturing>>,
windows: Query<Entity, With<Window>>,
) {
let Ok(window) = windows.get_single() else {
return;
};
match screenshot_saving.iter().count() {
0 => {
commands.entity(window).remove::<CursorIcon>();
}
x if x > 0 => {
commands
.entity(window)
.insert(CursorIcon::from(SystemCursorIcon::Progress));
}
_ => {}
}
}
/// set up a simple 3D scene
fn setup(
mut commands: Commands,
mut meshes: ResMut<Assets<Mesh>>,
mut materials: ResMut<Assets<StandardMaterial>>,
) {
// plane
commands.spawn(PbrBundle {
mesh: meshes.add(Plane3d::default().mesh().size(5.0, 5.0)),
material: materials.add(Color::srgb(0.3, 0.5, 0.3)),
..default()
});
// cube
commands.spawn(PbrBundle {
mesh: meshes.add(Cuboid::default()),
material: materials.add(Color::srgb(0.8, 0.7, 0.6)),
transform: Transform::from_xyz(0.0, 0.5, 0.0),
..default()
});
// light
commands.spawn((
PointLight {
shadows_enabled: true,
..default()
},
Transform::from_xyz(4.0, 8.0, 4.0),
));
// camera
commands.spawn(Camera3dBundle {
transform: Transform::from_xyz(-2.0, 2.5, 5.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});
commands.spawn(
TextBundle::from_section(
"Press <spacebar> to save a screenshot to disk",
TextStyle::default(),
)
.with_style(Style {
position_type: PositionType::Absolute,
top: Val::Px(12.0),
left: Val::Px(12.0),
..default()
}),
);
}