bevy_tts/examples/hello_world.rs

98 lines
3.5 KiB
Rust

use bevy::prelude::*;
use bevy_tts::*;
fn main() {
App::new()
.add_plugins((DefaultPlugins, bevy_tts::TtsPlugin))
.add_systems(Startup, setup)
.add_systems(Update, (event_poll, greet))
.add_observer(|trigger: Trigger<TtsEvent>| {
println!("{:?}", trigger.event());
})
.run();
}
// Speaks a bunch of messages and changes TTS properties.
fn setup(mut commands: Commands, mut tts: ResMut<Tts>) {
let mut other_tts = Tts::default();
let Features { voice, .. } = other_tts.supported_features();
if voice {
let voices = other_tts.voices().unwrap();
let v = voices.last().unwrap();
other_tts.set_voice(&v.clone()).unwrap();
}
commands.spawn(other_tts);
tts.speak("Hello, world.", false).unwrap();
let Features { rate, .. } = tts.supported_features();
if rate {
let original_rate = tts.get_rate().unwrap();
tts.speak(format!("Current rate: {}", original_rate), false)
.unwrap();
let max_rate = tts.max_rate();
tts.set_rate(max_rate).unwrap();
tts.speak("This is very fast.", false).unwrap();
let min_rate = tts.min_rate();
tts.set_rate(min_rate).unwrap();
tts.speak("This is very slow.", false).unwrap();
let normal_rate = tts.normal_rate();
tts.set_rate(normal_rate).unwrap();
tts.speak("This is the normal rate.", false).unwrap();
tts.set_rate(original_rate).unwrap();
}
let Features { pitch, .. } = tts.supported_features();
if pitch {
let original_pitch = tts.get_pitch().unwrap();
let max_pitch = tts.max_pitch();
tts.set_pitch(max_pitch).unwrap();
tts.speak("This is high-pitch.", false).unwrap();
let min_pitch = tts.min_pitch();
tts.set_pitch(min_pitch).unwrap();
tts.speak("This is low pitch.", false).unwrap();
let normal_pitch = tts.normal_pitch();
tts.set_pitch(normal_pitch).unwrap();
tts.speak("This is normal pitch.", false).unwrap();
tts.set_pitch(original_pitch).unwrap();
}
let Features { volume, .. } = tts.supported_features();
if volume {
let original_volume = tts.get_volume().unwrap();
let max_volume = tts.max_volume();
tts.set_volume(max_volume).unwrap();
tts.speak("This is loud!", false).unwrap();
let min_volume = tts.min_volume();
tts.set_volume(min_volume).unwrap();
tts.speak("This is quiet.", false).unwrap();
let normal_volume = tts.normal_volume();
tts.set_volume(normal_volume).unwrap();
tts.speak("This is normal volume.", false).unwrap();
tts.set_volume(original_volume).unwrap();
}
tts.speak("Press G for a greeting.", false).unwrap();
tts.speak(
"Press S to speak with a second voice, if you're lucky.",
false,
)
.unwrap();
}
// Reports events from TTS subsystem.
fn event_poll(mut events: EventReader<TtsEvent>) {
for event in events.read() {
println!("{:?}", event);
}
}
// Shows how to output speech in response to a keypress.
fn greet(input: Res<ButtonInput<KeyCode>>, mut tts: ResMut<Tts>, mut speaker: Query<&mut Tts>) {
if input.just_pressed(KeyCode::KeyG) {
tts.speak("Hey there!", true).unwrap();
}
if input.just_pressed(KeyCode::KeyS) {
if let Ok(mut speaker) = speaker.get_single_mut() {
speaker
.speak("Hey there from the TTS component!", true)
.unwrap();
}
}
}