mirror of
https://github.com/bevyengine/bevy
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f18f28874a
# Objective - Better consistency with `add_systems`. - Deprecating `add_plugin` in favor of a more powerful `add_plugins`. - Allow passing `Plugin` to `add_plugins`. - Allow passing tuples to `add_plugins`. ## Solution - `App::add_plugins` now takes an `impl Plugins` parameter. - `App::add_plugin` is deprecated. - `Plugins` is a new sealed trait that is only implemented for `Plugin`, `PluginGroup` and tuples over `Plugins`. - All examples, benchmarks and tests are changed to use `add_plugins`, using tuples where appropriate. --- ## Changelog ### Changed - `App::add_plugins` now accepts all types that implement `Plugins`, which is implemented for: - Types that implement `Plugin`. - Types that implement `PluginGroup`. - Tuples (up to 16 elements) over types that implement `Plugins`. - Deprecated `App::add_plugin` in favor of `App::add_plugins`. ## Migration Guide - Replace `app.add_plugin(plugin)` calls with `app.add_plugins(plugin)`. --------- Co-authored-by: Carter Anderson <mcanders1@gmail.com>
167 lines
5 KiB
Rust
167 lines
5 KiB
Rust
//! Shows various text layout options.
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use bevy::{
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diagnostic::{DiagnosticsStore, FrameTimeDiagnosticsPlugin},
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prelude::*,
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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((
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DefaultPlugins.set(WindowPlugin {
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primary_window: Some(Window {
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present_mode: PresentMode::AutoNoVsync,
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..default()
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}),
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..default()
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}),
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FrameTimeDiagnosticsPlugin,
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))
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.add_systems(Startup, infotext_system)
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.add_systems(Update, change_text_system)
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.run();
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}
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#[derive(Component)]
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struct TextChanges;
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fn infotext_system(mut commands: Commands, asset_server: Res<AssetServer>) {
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let font = asset_server.load("fonts/FiraSans-Bold.ttf");
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commands.spawn(Camera2dBundle::default());
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commands.spawn(
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TextBundle::from_section(
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"This is\ntext with\nline breaks\nin the top left",
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TextStyle {
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font: font.clone(),
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font_size: 50.0,
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color: Color::WHITE,
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},
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)
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.with_style(Style {
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position_type: PositionType::Absolute,
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top: Val::Px(5.0),
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left: Val::Px(15.0),
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..default()
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}),
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);
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commands.spawn(TextBundle::from_section(
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"This text is very long, has a limited width, is centered, is positioned in the top right and is also colored pink.",
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TextStyle {
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font: font.clone(),
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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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},
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)
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.with_text_alignment(TextAlignment::Center)
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.with_style(Style {
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position_type: PositionType::Absolute,
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top: Val::Px(5.0),
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right: Val::Px(15.0),
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max_width: Val::Px(400.),
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..default()
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})
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);
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commands.spawn((
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TextBundle::from_sections([
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TextSection::new(
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"This text changes in the bottom right",
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TextStyle {
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font: font.clone(),
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font_size: 30.0,
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color: Color::WHITE,
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},
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),
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TextSection::new(
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"\nThis text changes in the bottom right - ",
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TextStyle {
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font: font.clone(),
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font_size: 30.0,
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color: Color::RED,
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},
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),
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TextSection::from_style(TextStyle {
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font: font.clone(),
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font_size: 30.0,
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color: Color::ORANGE_RED,
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}),
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TextSection::new(
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" fps, ",
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TextStyle {
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font: font.clone(),
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font_size: 30.0,
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color: Color::YELLOW,
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},
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),
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TextSection::from_style(TextStyle {
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font: font.clone(),
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font_size: 30.0,
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color: Color::GREEN,
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}),
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TextSection::new(
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" ms/frame",
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TextStyle {
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font: font.clone(),
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font_size: 30.0,
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color: Color::BLUE,
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},
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),
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])
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.with_style(Style {
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position_type: PositionType::Absolute,
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bottom: Val::Px(5.0),
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right: Val::Px(15.0),
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..default()
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}),
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TextChanges,
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));
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commands.spawn(
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TextBundle::from_section(
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"This\ntext has\nline breaks and also a set width in the bottom left",
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TextStyle {
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font,
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font_size: 50.0,
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color: Color::WHITE,
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},
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)
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.with_style(Style {
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align_self: AlignSelf::FlexEnd,
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position_type: PositionType::Absolute,
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bottom: Val::Px(5.0),
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left: Val::Px(15.0),
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width: Val::Px(200.0),
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..default()
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}),
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);
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}
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fn change_text_system(
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time: Res<Time>,
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diagnostics: Res<DiagnosticsStore>,
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mut query: Query<&mut Text, With<TextChanges>>,
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) {
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for mut text in &mut query {
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let mut fps = 0.0;
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if let Some(fps_diagnostic) = diagnostics.get(FrameTimeDiagnosticsPlugin::FPS) {
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if let Some(fps_smoothed) = fps_diagnostic.smoothed() {
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fps = fps_smoothed;
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}
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}
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let mut frame_time = time.delta_seconds_f64();
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if let Some(frame_time_diagnostic) = diagnostics.get(FrameTimeDiagnosticsPlugin::FRAME_TIME)
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{
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if let Some(frame_time_smoothed) = frame_time_diagnostic.smoothed() {
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frame_time = frame_time_smoothed;
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}
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}
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text.sections[0].value = format!(
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"This text changes in the bottom right - {fps:.1} fps, {frame_time:.3} ms/frame",
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);
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text.sections[2].value = format!("{fps:.1}");
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text.sections[4].value = format!("{frame_time:.3}");
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}
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}
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