74 lines
2.2 KiB
Rust
74 lines
2.2 KiB
Rust
//! Simple text rendering benchmark.
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//!
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//! Creates a `Text` with a single `TextSection` containing `100_000` glyphs,
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//! and renders it with the UI in a white color and with Text2d in a red color.
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use bevy::{
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diagnostic::{FrameTimeDiagnosticsPlugin, LogDiagnosticsPlugin},
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prelude::*,
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text::{BreakLineOn, Text2dBounds},
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window::{PresentMode, WindowPlugin},
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};
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fn main() {
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App::new()
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.add_plugins(DefaultPlugins.set(WindowPlugin {
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primary_window: Some(Window {
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present_mode: PresentMode::Immediate,
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..default()
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}),
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..default()
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}))
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.add_plugin(FrameTimeDiagnosticsPlugin::default())
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.add_plugin(LogDiagnosticsPlugin::default())
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.add_systems(Startup, setup)
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.run();
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}
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fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
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commands.spawn(Camera2dBundle::default());
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let mut text = Text {
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sections: vec![TextSection {
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value: "0123456789".repeat(10_000),
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style: TextStyle {
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font: asset_server.load("fonts/FiraSans-Bold.ttf"),
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font_size: 4.,
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color: Color::WHITE,
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},
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}],
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alignment: TextAlignment::Left,
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linebreak_behaviour: BreakLineOn::AnyCharacter,
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};
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commands
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.spawn(NodeBundle {
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style: Style {
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flex_basis: Val::Percent(100.),
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align_items: AlignItems::Center,
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justify_content: JustifyContent::Center,
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..default()
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},
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..default()
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})
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.with_children(|commands| {
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commands.spawn(TextBundle {
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text: text.clone(),
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style: Style {
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size: Size::width(Val::Px(1000.)),
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..Default::default()
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},
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..Default::default()
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});
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});
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text.sections[0].style.color = Color::RED;
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commands.spawn(Text2dBundle {
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text,
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text_anchor: bevy::sprite::Anchor::Center,
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text_2d_bounds: Text2dBounds {
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size: Vec2::new(1000., f32::INFINITY),
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},
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..Default::default()
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});
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}
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