mirror of
https://github.com/bevyengine/bevy
synced 2024-12-23 19:43:07 +00:00
dd49dc71d2
# Objective The `UiBoxShadowSamples` resource should be renamed to `BoxShadowSamples` so it matches the `BoxShadow` component. ## Migration Guide `UiBoxShadowSamples` has been renamed to `BoxShadowSamples`
267 lines
8.4 KiB
Rust
267 lines
8.4 KiB
Rust
//! This example shows how to create a node with a shadow
|
|
|
|
use argh::FromArgs;
|
|
use bevy::color::palettes::css::BLUE;
|
|
use bevy::color::palettes::css::DEEP_SKY_BLUE;
|
|
use bevy::color::palettes::css::GREEN;
|
|
use bevy::color::palettes::css::LIGHT_SKY_BLUE;
|
|
use bevy::color::palettes::css::RED;
|
|
use bevy::color::palettes::css::YELLOW;
|
|
use bevy::prelude::*;
|
|
use bevy::winit::WinitSettings;
|
|
|
|
#[derive(FromArgs, Resource)]
|
|
/// `box_shadow` example
|
|
struct Args {
|
|
/// number of samples
|
|
#[argh(option, default = "4")]
|
|
samples: u32,
|
|
}
|
|
|
|
fn main() {
|
|
App::new()
|
|
.add_plugins(DefaultPlugins)
|
|
// Only run the app when there is user input. This will significantly reduce CPU/GPU use.
|
|
.insert_resource(WinitSettings::desktop_app())
|
|
.add_systems(Startup, setup)
|
|
.run();
|
|
}
|
|
|
|
fn setup(mut commands: Commands) {
|
|
// `from_env` panics on the web
|
|
#[cfg(not(target_arch = "wasm32"))]
|
|
let args: Args = argh::from_env();
|
|
#[cfg(target_arch = "wasm32")]
|
|
let args = Args::from_args(&[], &[]).unwrap();
|
|
|
|
// ui camera
|
|
commands.spawn((Camera2d, BoxShadowSamples(args.samples)));
|
|
|
|
commands
|
|
.spawn((
|
|
Node {
|
|
width: Val::Percent(100.0),
|
|
height: Val::Percent(100.0),
|
|
padding: UiRect::all(Val::Px(30.)),
|
|
column_gap: Val::Px(30.),
|
|
flex_wrap: FlexWrap::Wrap,
|
|
..default()
|
|
},
|
|
BackgroundColor(DEEP_SKY_BLUE.into()),
|
|
))
|
|
.with_children(|commands| {
|
|
let example_nodes = [
|
|
(
|
|
Vec2::splat(50.),
|
|
Vec2::ZERO,
|
|
10.,
|
|
0.,
|
|
BorderRadius::bottom_right(Val::Px(10.)),
|
|
),
|
|
(Vec2::new(50., 25.), Vec2::ZERO, 10., 0., BorderRadius::ZERO),
|
|
(Vec2::splat(50.), Vec2::ZERO, 10., 0., BorderRadius::MAX),
|
|
(Vec2::new(100., 25.), Vec2::ZERO, 10., 0., BorderRadius::MAX),
|
|
(
|
|
Vec2::splat(50.),
|
|
Vec2::ZERO,
|
|
10.,
|
|
0.,
|
|
BorderRadius::bottom_right(Val::Px(10.)),
|
|
),
|
|
(Vec2::new(50., 25.), Vec2::ZERO, 0., 10., BorderRadius::ZERO),
|
|
(
|
|
Vec2::splat(50.),
|
|
Vec2::ZERO,
|
|
0.,
|
|
10.,
|
|
BorderRadius::bottom_right(Val::Px(10.)),
|
|
),
|
|
(Vec2::new(100., 25.), Vec2::ZERO, 0., 10., BorderRadius::MAX),
|
|
(
|
|
Vec2::splat(50.),
|
|
Vec2::splat(25.),
|
|
0.,
|
|
0.,
|
|
BorderRadius::ZERO,
|
|
),
|
|
(
|
|
Vec2::new(50., 25.),
|
|
Vec2::splat(25.),
|
|
0.,
|
|
0.,
|
|
BorderRadius::ZERO,
|
|
),
|
|
(
|
|
Vec2::splat(50.),
|
|
Vec2::splat(10.),
|
|
0.,
|
|
0.,
|
|
BorderRadius::bottom_right(Val::Px(10.)),
|
|
),
|
|
(
|
|
Vec2::splat(50.),
|
|
Vec2::splat(25.),
|
|
0.,
|
|
10.,
|
|
BorderRadius::ZERO,
|
|
),
|
|
(
|
|
Vec2::new(50., 25.),
|
|
Vec2::splat(25.),
|
|
0.,
|
|
10.,
|
|
BorderRadius::ZERO,
|
|
),
|
|
(
|
|
Vec2::splat(50.),
|
|
Vec2::splat(10.),
|
|
0.,
|
|
10.,
|
|
BorderRadius::bottom_right(Val::Px(10.)),
|
|
),
|
|
(
|
|
Vec2::splat(50.),
|
|
Vec2::splat(10.),
|
|
0.,
|
|
3.,
|
|
BorderRadius::ZERO,
|
|
),
|
|
(
|
|
Vec2::new(50., 25.),
|
|
Vec2::splat(10.),
|
|
0.,
|
|
3.,
|
|
BorderRadius::ZERO,
|
|
),
|
|
(
|
|
Vec2::splat(50.),
|
|
Vec2::splat(10.),
|
|
0.,
|
|
3.,
|
|
BorderRadius::bottom_right(Val::Px(10.)),
|
|
),
|
|
(
|
|
Vec2::splat(50.),
|
|
Vec2::splat(10.),
|
|
0.,
|
|
3.,
|
|
BorderRadius::all(Val::Px(20.)),
|
|
),
|
|
(
|
|
Vec2::new(50., 25.),
|
|
Vec2::splat(10.),
|
|
0.,
|
|
3.,
|
|
BorderRadius::all(Val::Px(20.)),
|
|
),
|
|
(
|
|
Vec2::new(25., 50.),
|
|
Vec2::splat(10.),
|
|
0.,
|
|
3.,
|
|
BorderRadius::MAX,
|
|
),
|
|
(
|
|
Vec2::splat(50.),
|
|
Vec2::splat(10.),
|
|
0.,
|
|
10.,
|
|
BorderRadius::all(Val::Px(20.)),
|
|
),
|
|
(
|
|
Vec2::new(50., 25.),
|
|
Vec2::splat(10.),
|
|
0.,
|
|
10.,
|
|
BorderRadius::all(Val::Px(20.)),
|
|
),
|
|
(
|
|
Vec2::new(25., 50.),
|
|
Vec2::splat(10.),
|
|
0.,
|
|
10.,
|
|
BorderRadius::MAX,
|
|
),
|
|
];
|
|
|
|
for (size, offset, spread, blur, border_radius) in example_nodes {
|
|
commands.spawn(box_shadow_node_bundle(
|
|
size,
|
|
offset,
|
|
spread,
|
|
blur,
|
|
border_radius,
|
|
));
|
|
}
|
|
|
|
// Demonstrate multiple shadows on one node
|
|
commands.spawn((
|
|
Node {
|
|
width: Val::Px(40.),
|
|
height: Val::Px(40.),
|
|
border: UiRect::all(Val::Px(4.)),
|
|
..default()
|
|
},
|
|
BorderColor(LIGHT_SKY_BLUE.into()),
|
|
BorderRadius::all(Val::Px(20.)),
|
|
BackgroundColor(DEEP_SKY_BLUE.into()),
|
|
BoxShadow(vec![
|
|
ShadowStyle {
|
|
color: RED.with_alpha(0.7).into(),
|
|
x_offset: Val::Px(-20.),
|
|
y_offset: Val::Px(-5.),
|
|
spread_radius: Val::Percent(10.),
|
|
blur_radius: Val::Px(3.),
|
|
},
|
|
ShadowStyle {
|
|
color: BLUE.with_alpha(0.7).into(),
|
|
x_offset: Val::Px(-5.),
|
|
y_offset: Val::Px(-20.),
|
|
spread_radius: Val::Percent(10.),
|
|
blur_radius: Val::Px(3.),
|
|
},
|
|
ShadowStyle {
|
|
color: YELLOW.with_alpha(0.7).into(),
|
|
x_offset: Val::Px(20.),
|
|
y_offset: Val::Px(5.),
|
|
spread_radius: Val::Percent(10.),
|
|
blur_radius: Val::Px(3.),
|
|
},
|
|
ShadowStyle {
|
|
color: GREEN.with_alpha(0.7).into(),
|
|
x_offset: Val::Px(5.),
|
|
y_offset: Val::Px(20.),
|
|
spread_radius: Val::Percent(10.),
|
|
blur_radius: Val::Px(3.),
|
|
},
|
|
]),
|
|
));
|
|
});
|
|
}
|
|
|
|
fn box_shadow_node_bundle(
|
|
size: Vec2,
|
|
offset: Vec2,
|
|
spread: f32,
|
|
blur: f32,
|
|
border_radius: BorderRadius,
|
|
) -> impl Bundle {
|
|
(
|
|
Node {
|
|
width: Val::Px(size.x),
|
|
height: Val::Px(size.y),
|
|
border: UiRect::all(Val::Px(4.)),
|
|
..default()
|
|
},
|
|
BorderColor(LIGHT_SKY_BLUE.into()),
|
|
border_radius,
|
|
BackgroundColor(DEEP_SKY_BLUE.into()),
|
|
BoxShadow::new(
|
|
Color::BLACK.with_alpha(0.8),
|
|
Val::Percent(offset.x),
|
|
Val::Percent(offset.y),
|
|
Val::Percent(spread),
|
|
Val::Px(blur),
|
|
),
|
|
)
|
|
}
|