docs/bevy/examples/input/keyboard_input.rs 1.3 K · 43 lines · raw · history

1 //! Demonstrates handling a key press/release.
2
3 use bevy::{input::keyboard::Key, prelude::*};
4
5 fn main() {
6 App::new()
7 .add_plugins(DefaultPlugins)
8 .add_systems(Update, keyboard_input_system)
9 .run();
10 }
11
12 /// This system responds to certain key presses
13 fn keyboard_input_system(
14 keyboard_input: Res<ButtonInput<KeyCode>>,
15 key_input: Res<ButtonInput<Key>>,
16 ) {
17 // KeyCode is used when you want the key location across different keyboard layouts
18 // See https://w3c.github.io/uievents-code/#code-value-tables for the locations
19 if keyboard_input.pressed(KeyCode::KeyA) {
20 info!("'A' currently pressed");
21 }
22
23 if keyboard_input.just_pressed(KeyCode::KeyA) {
24 info!("'A' just pressed");
25 }
26 if keyboard_input.just_released(KeyCode::KeyA) {
27 info!("'A' just released");
28 }
29
30 // Key is used when you want a specific key, no matter where it is located.
31 // This is useful for symbols that have a specific connotation, e.g. '?' for
32 // a help menu or '+'/'-' for zoom
33 let key = Key::Character("?".into());
34 if key_input.pressed(key.clone()) {
35 info!("'?' currently pressed");
36 }
37 if key_input.just_pressed(key.clone()) {
38 info!("'?' just pressed");
39 }
40 if key_input.just_released(key) {
41 info!("'?' just released");
42 }
43 }