use bevy::{
diagnostic::{FrameTimeDiagnosticsPlugin, LogDiagnosticsPlugin},
prelude::*,
text::{BreakLineOn, Text2dBounds},
window::{PresentMode, WindowPlugin},
};
fn main() {
let mut app = App::new();
app.add_plugins((
DefaultPlugins.set(WindowPlugin {
primary_window: Some(Window {
present_mode: PresentMode::AutoNoVsync,
..default()
}),
..default()
}),
FrameTimeDiagnosticsPlugin,
LogDiagnosticsPlugin::default(),
))
.add_systems(Startup, setup);
if std::env::args().any(|arg| arg == "recompute-text") {
app.add_systems(Update, force_text_recomputation);
}
app.run();
}
fn setup(mut commands: Commands) {
warn!(include_str!("warning_string.txt"));
commands.spawn(Camera2dBundle::default());
let mut text = Text {
sections: vec![TextSection {
value: "0123456789".repeat(10_000),
style: TextStyle {
font_size: 4.,
color: Color::WHITE,
..default()
},
}],
alignment: TextAlignment::Left,
linebreak_behavior: BreakLineOn::AnyCharacter,
};
commands
.spawn(NodeBundle {
style: Style {
flex_basis: Val::Percent(100.),
align_items: AlignItems::Center,
justify_content: JustifyContent::Center,
..default()
},
..default()
})
.with_children(|commands| {
commands.spawn(TextBundle {
text: text.clone(),
style: Style {
width: Val::Px(1000.),
..Default::default()
},
..Default::default()
});
});
text.sections[0].style.color = Color::RED;
commands.spawn(Text2dBundle {
text,
text_anchor: bevy::sprite::Anchor::Center,
text_2d_bounds: Text2dBounds {
size: Vec2::new(1000., f32::INFINITY),
},
..Default::default()
});
}
fn force_text_recomputation(mut text_query: Query<&mut Text>) {
for mut text in &mut text_query {
text.set_changed();
}
}