131 lines
4.1 KiB
Rust
131 lines
4.1 KiB
Rust
use bevy::prelude::*;
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extern crate rand;
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/// This example is for debugging text layout
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fn main() {
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App::build()
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.add_plugins(DefaultPlugins)
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.add_startup_system(infotext_system)
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.add_system(change_text_system)
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.run();
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}
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struct TextChanges;
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fn infotext_system(commands: &mut Commands, asset_server: Res<AssetServer>) {
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let font = asset_server.load("fonts/FiraSans-Bold.ttf");
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commands.spawn(UiCameraBundle::default()).spawn(TextBundle {
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style: Style {
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align_self: AlignSelf::FlexEnd,
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position_type: PositionType::Absolute,
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position: Rect {
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top: Val::Px(5.0),
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left: Val::Px(15.0),
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..Default::default()
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},
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..Default::default()
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},
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text: Text {
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value: "This is\ntext with\nline breaks\nin the top left".to_string(),
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font: font.clone(),
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style: TextStyle {
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font_size: 50.0,
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color: Color::WHITE,
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alignment: TextAlignment::default(),
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},
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},
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..Default::default()
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});
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commands.spawn(UiCameraBundle::default()).spawn(TextBundle {
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style: Style {
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align_self: AlignSelf::FlexEnd,
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position_type: PositionType::Absolute,
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position: Rect {
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top: Val::Px(5.0),
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right: Val::Px(15.0),
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..Default::default()
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},
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max_size: Size {
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width: Val::Px(400.),
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height: Val::Undefined,
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},
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..Default::default()
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},
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text: Text {
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value: "This is very long text with limited width in the top right and is also pink"
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.to_string(),
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font: font.clone(),
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style: TextStyle {
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font_size: 50.0,
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color: Color::rgb(0.8, 0.2, 0.7),
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alignment: TextAlignment {
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horizontal: HorizontalAlign::Center,
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vertical: VerticalAlign::Center,
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},
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},
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},
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..Default::default()
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});
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commands
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.spawn(UiCameraBundle::default())
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.spawn(TextBundle {
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style: Style {
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align_self: AlignSelf::FlexEnd,
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position_type: PositionType::Absolute,
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position: Rect {
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bottom: Val::Px(5.0),
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right: Val::Px(15.0),
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..Default::default()
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},
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..Default::default()
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},
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text: Text {
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value: "This text changes in the bottom right".to_string(),
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font: font.clone(),
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style: TextStyle {
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font_size: 50.0,
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color: Color::WHITE,
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alignment: TextAlignment::default(),
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},
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},
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..Default::default()
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})
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.with(TextChanges);
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commands.spawn(UiCameraBundle::default()).spawn(TextBundle {
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style: Style {
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align_self: AlignSelf::FlexEnd,
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position_type: PositionType::Absolute,
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position: Rect {
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bottom: Val::Px(5.0),
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left: Val::Px(15.0),
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..Default::default()
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},
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size: Size {
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width: Val::Px(200.0),
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..Default::default()
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},
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..Default::default()
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},
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text: Text {
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value: "This\ntext has\nline breaks and also a set width in the bottom left"
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.to_string(),
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font,
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style: TextStyle {
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font_size: 50.0,
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color: Color::WHITE,
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alignment: TextAlignment::default(),
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},
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},
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..Default::default()
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});
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}
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fn change_text_system(mut query: Query<(&mut Text, &TextChanges)>) {
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for (mut text, _text_changes) in query.iter_mut() {
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text.value = format!(
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"This text changes in the bottom right {}",
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rand::random::<u16>(),
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);
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}
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}
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