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use bevy::prelude::*;
use bevy_ecss::prelude::{Class, EcssPlugin, StyleSheet};
fn main() {
App::new()
.add_plugins(DefaultPlugins.set(WindowPlugin {
primary_window: Some(Window {
canvas: Some("#bevy".to_string()),
..default()
}),
..default()
}))
.add_plugins(EcssPlugin::default())
.add_systems(Startup, setup)
.run();
}
fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
commands.spawn(Camera2dBundle::default());
commands
.spawn(NodeBundle {
..Default::default()
})
.insert(Name::new("root"))
.insert(StyleSheet::new(asset_server.load("sheets/stress.css")))
.with_children(|builder| {
for _ in 0..10 {
builder
.spawn(NodeBundle {
style: Style {
..Default::default()
},
..Default::default()
})
.insert(Class::new("red"))
.with_children(|builder| {
for _ in 0..10 {
builder
.spawn(NodeBundle {
..Default::default()
})
.insert(Class::new("green"))
.with_children(|builder| {
for _ in 0..10 {
builder
.spawn(NodeBundle {
style: Style {
..Default::default()
},
..Default::default()
})
.insert(Class::new("blue"))
.with_children(|builder| {
for _ in 0..10 {
builder
.spawn(NodeBundle {
..Default::default()
})
.insert(Class::new("purple"));
}
});
}
});
}
});
}
});
}