bevy_mod_picking 0.11.0

use bevy::prelude::*;

use bevy_mod_picking::{DefaultPickingPlugins, PickableBundle, PickingCameraBundle, PickingEvent};

fn main() {
    App::new()
        .add_plugins(DefaultPlugins)
        .add_plugins(DefaultPickingPlugins) // <- Adds picking, interaction, and highlighting
        .add_startup_system(setup)
        .add_system_to_stage(CoreStage::PostUpdate, print_events)
        .run();
}

pub fn print_events(mut events: EventReader<PickingEvent>) {
    for event in events.iter() {
        match event {
            PickingEvent::Selection(e) => info!("A selection event happened: {:?}", e),
            PickingEvent::Hover(e) => info!("Egads! A hover event!? {:?}", e),
            PickingEvent::Clicked(e) => info!("Gee Willikers, it's a click! {:?}", e),
        }
    }
}

fn setup(
    mut commands: Commands,
    mut meshes: ResMut<Assets<Mesh>>,
    mut materials: ResMut<Assets<StandardMaterial>>,
) {
    commands.spawn((
        PbrBundle {
            mesh: meshes.add(Mesh::from(shape::Plane { size: 5.0 })),
            material: materials.add(Color::rgb(0.3, 0.5, 0.3).into()),
            ..Default::default()
        },
        PickableBundle::default(), // <- Makes the mesh pickable.
    ));
    commands.spawn((
        PbrBundle {
            mesh: meshes.add(Mesh::from(shape::Cube { size: 1.0 })),
            material: materials.add(Color::rgb(0.8, 0.7, 0.6).into()),
            transform: Transform::from_xyz(0.0, 0.5, 0.0),
            ..Default::default()
        },
        PickableBundle::default(), // <- Makes the mesh pickable.
    ));
    commands.spawn(PointLightBundle {
        point_light: PointLight {
            intensity: 1500.0,
            shadows_enabled: true,
            ..Default::default()
        },
        transform: Transform::from_xyz(4.0, 8.0, 4.0),
        ..Default::default()
    });
    commands.spawn((
        Camera3dBundle {
            transform: Transform::from_xyz(-2.0, 2.5, 5.0).looking_at(Vec3::ZERO, Vec3::Y),
            ..Default::default()
        },
        PickingCameraBundle::default(), // <- Sets the camera to use for picking.
    ));
}