bevy_dolly 0.0.5

#![allow(clippy::type_complexity)]
use bevy::prelude::*;
use bevy_dolly::prelude::*;

#[derive(Component)]
struct MainCamera;

// Uses one of the default drivers that come with bevy_dolly called LookAt

fn main() {
    App::new()
        .add_plugins((DefaultPlugins, DollyPosCtrl))
        .add_systems(Startup, setup)
        .add_systems(Update, (Dolly::<MainCamera>::update_active, update_camera))
        .run();
}
#[allow(dead_code)]
struct Player;

/// set up a simple 3D scene
fn setup(
    mut commands: Commands,
    mut meshes: ResMut<Assets<Mesh>>,
    mut materials: ResMut<Assets<StandardMaterial>>,
) {
    // plane
    commands.spawn((
        Mesh3d(meshes.add(Plane3d::default().mesh().size(20., 20.))),
        MeshMaterial3d(materials.add(Color::srgb(0.3, 0.5, 0.3))),
    ));

    commands.spawn((
        MainCamera,
        Rig::builder()
            .with(Position::new(Vec3::Y * 3.0))
            .with(LookAt::new(
                /*start_pos.transform_2_dolly().position*/
                Vec3::new(0., -2., 2.),
            ))
            .build(),
        Camera3d::default(),
        Transform::from_xyz(-2.0, 2., 5.0).looking_at(Vec3::ZERO, Vec3::Y),
    ));

    // light
    commands.spawn((PointLight::default(), Transform::from_xyz(4.0, 8.0, 4.0)));

    info!("Use W, A, S, D for movement");
    info!("Use Space and Shift for going up and down");
    info!("Use , (Comma) and . (Period) to rotate Left or Right");
}

fn update_camera(
    mut query: ParamSet<(
        Query<&mut Transform, With<DollyPosCtrlMove>>,
        Query<&mut Rig>,
    )>,
) {
    let mut p0 = query.p0();
    let player = p0.single_mut();
    query.p1().single_mut().driver_mut::<LookAt>().target = player.translation;
}