//! A simple 3D scene with light shining over a cube sitting on a plane.

use bevy::prelude::*;

fn main() {
    App::new()
        .add_plugins(DefaultPlugins)
        .add_systems(Startup, scene.spawn())
        .run();
}

/// set up a simple 3D scene
fn scene() -> impl SceneList {
    bsn_list! [
        (
            #CircularBase
            Mesh3d(asset_value(Circle::new(4.0)))
            MeshMaterial3d::<StandardMaterial>(asset_value(Color::WHITE))
            Transform::from_rotation(Quat::from_rotation_x(-std::f32::consts::FRAC_PI_2))
        ),
        (
            #Cube
            Mesh3d(asset_value(Cuboid::new(1.0, 1.0, 1.0)))
            MeshMaterial3d::<StandardMaterial>(asset_value(Color::srgb_u8(124, 144, 255)))
            Transform::from_xyz(0.0, 0.5, 0.0)
        ),
        (
            PointLight {
                shadow_maps_enabled: true,
            }
            Transform::from_xyz(4.0, 8.0, 4.0)
        ),
        (
            Camera3d
            template_value(Transform::from_xyz(-2.5, 4.5, 9.0).looking_at(Vec3::ZERO, Vec3::Y))
        )
    ]
}