cyber_rider/src/ui.rs

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use bevy::prelude::*;
use crate::{geometry::PLANET_RADIUS, action::PlayerState};
#[derive(Component)]
struct UpText;
fn setup_ui(mut commands: Commands, asset_server: Res<AssetServer>) {
commands.spawn_bundle(UiCameraBundle::default());
commands
.spawn_bundle(TextBundle {
style: Style {
align_self: AlignSelf::FlexEnd,
..Default::default()
},
// Use `Text` directly
text: Text {
// Construct a `Vec` of `TextSection`s
sections: vec![TextSection {
value: "".to_string(),
style: TextStyle {
font: asset_server.load("fonts/FiraMono-Medium.ttf"),
font_size: 40.0,
color: Color::GOLD,
},
}],
..Default::default()
},
..Default::default()
})
.insert(UpText);
}
fn update_ui(
pstate_query: Query<(&PlayerState, &Transform)>,
mut text_query: Query<&mut Text, With<UpText>>,
) {
let mut text = text_query.single_mut();
let pstate = pstate_query.single();
text.sections[0].value = format!(
"spd: {:.2}\nalt: {:.2}",
pstate.0.velocity.length(),
pstate.1.translation.length() - PLANET_RADIUS
);
}
pub struct CyberUIPlugin;
impl Plugin for CyberUIPlugin {
fn build(&self, app: &mut App) {
app.add_startup_system(setup_ui).add_system(update_ui);
}
}