7482a0d26d
Fixes #15834 ## Migration Guide The APIs of `Time`, `Timer` and `Stopwatch` have been cleaned up for consistency with each other and the standard library's `Duration` type. The following methods have been renamed: - `Stowatch::paused` -> `Stopwatch::is_paused` - `Time::elapsed_seconds` -> `Time::elasped_secs` (including `_f64` and `_wrapped` variants)
52 lines
1.4 KiB
Rust
52 lines
1.4 KiB
Rust
//! This example illustrates how to load and play an audio file, and control how it's played.
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use bevy::{math::ops, prelude::*};
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fn main() {
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App::new()
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.add_plugins(DefaultPlugins)
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.add_systems(Startup, setup)
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.add_systems(Update, (update_speed, pause, volume))
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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((
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AudioPlayer::<AudioSource>(asset_server.load("sounds/Windless Slopes.ogg")),
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MyMusic,
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));
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}
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#[derive(Component)]
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struct MyMusic;
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fn update_speed(music_controller: Query<&AudioSink, With<MyMusic>>, time: Res<Time>) {
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if let Ok(sink) = music_controller.get_single() {
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sink.set_speed((ops::sin(time.elapsed_secs() / 5.0) + 1.0).max(0.1));
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}
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}
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fn pause(
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keyboard_input: Res<ButtonInput<KeyCode>>,
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music_controller: Query<&AudioSink, With<MyMusic>>,
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) {
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if keyboard_input.just_pressed(KeyCode::Space) {
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if let Ok(sink) = music_controller.get_single() {
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sink.toggle();
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}
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}
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}
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fn volume(
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keyboard_input: Res<ButtonInput<KeyCode>>,
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music_controller: Query<&AudioSink, With<MyMusic>>,
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) {
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if let Ok(sink) = music_controller.get_single() {
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if keyboard_input.just_pressed(KeyCode::Equal) {
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sink.set_volume(sink.volume() + 0.1);
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} else if keyboard_input.just_pressed(KeyCode::Minus) {
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sink.set_volume(sink.volume() - 0.1);
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}
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}
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}
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