bevy_ui_pointer_capture_detector

A plugin that detects if the mouse pointer is above a Bevy Ui Node.

usage

in Cargo.toml, add

[dependencies]

bevy = "0.7.0"

bevy_ui_pointer_capture_detector = "0.1"

src/main.rs

use bevy::prelude::*;
use bevy_ui_pointer_capture_detector::*;

fn setup(
    mut commands: Commands
) {
    commands
        .spawn_bundle(UiCameraBundle::default())
        .commands()
        .spawn_bundle(NodeBundle {
            style: Style {
                margin: Rect { 
                    left: Val::Px(100.0), 
                    bottom: Val::Px(100.0), 
                    right: Val::Auto, 
                    top: Val::Auto 
                },
                size: Size { 
                    width: Val::Px(100.0), 
                    height: Val::Px(100.0) 
                },
                ..Default::default()
            },
            color: UiColor(Color::RED),
            ..Default::default()
        });
}

fn is_pointer_captured(
    is_captured: Res<IsPointerCaptured>,
    mut clear_color: ResMut<ClearColor>,
) {
    clear_color.0 = if is_captured.0 {
            Color::DARK_GRAY
        } else {
            Color::WHITE
        };
}

fn main() {
    App::new()
    .add_plugins(DefaultPlugins)
    .add_plugin(BevyUiPointerCaptureDetectorPlugin)
    .add_startup_system(setup)
    .add_system(is_pointer_captured)
    .run();
}