bevy/examples/input/mouse_grab.rs
Pablo Reinhardt d96a9d15f6
Migrate from Query::single and friends to Single (#15872)
# Objective

- closes #15866

## Solution

- Simply migrate where possible.

## Testing

- Expect that CI will do most of the work. Examples is another way of
testing this, as most of the work is in that area.
---

## Notes
For now, this PR doesn't migrate `QueryState::single` and friends as for
now, this look like another issue. So for example, QueryBuilders that
used single or `World::query` that used single wasn't migrated. If there
is a easy way to migrate those, please let me know.

Most of the uses of `Query::single` were removed, the only other uses
that I found was related to tests of said methods, so will probably be
removed when we remove `Query::single`.
2024-10-13 20:32:06 +00:00

28 lines
811 B
Rust

//! Demonstrates how to grab and hide the mouse cursor.
use bevy::{prelude::*, window::CursorGrabMode};
fn main() {
App::new()
.add_plugins(DefaultPlugins)
.add_systems(Update, grab_mouse)
.run();
}
// This system grabs the mouse when the left mouse button is pressed
// and releases it when the escape key is pressed
fn grab_mouse(
mut window: Single<&mut Window>,
mouse: Res<ButtonInput<MouseButton>>,
key: Res<ButtonInput<KeyCode>>,
) {
if mouse.just_pressed(MouseButton::Left) {
window.cursor_options.visible = false;
window.cursor_options.grab_mode = CursorGrabMode::Locked;
}
if key.just_pressed(KeyCode::Escape) {
window.cursor_options.visible = true;
window.cursor_options.grab_mode = CursorGrabMode::None;
}
}