use avian3d::prelude::*;
use bevy::prelude::*;
use bevy_egui::EguiPlugin;
use bevy_inspector_egui::quick::WorldInspectorPlugin;

fn main() {
    let mut app = App::new();
    app.add_plugins(DefaultPlugins);

    app.add_plugins((PhysicsPlugins::default(), PhysicsDebugPlugin::default()));

    app.add_plugins((
        EguiPlugin {
            enable_multipass_for_primary_context: true,
        },
        WorldInspectorPlugin::default(),
    ));

    app.add_systems(Startup, setup);

    app.run();
}

fn setup(
    mut commands: Commands,
    mut meshes: ResMut<Assets<Mesh>>,
    mut materials: ResMut<Assets<StandardMaterial>>,
) {
    // Static physics object with a collision shape
    commands.spawn((
        RigidBody::Static,
        Collider::cylinder(4.0, 0.1),
        Mesh3d(meshes.add(Cylinder::new(4.0, 0.1))),
        MeshMaterial3d(materials.add(Color::WHITE)),
    ));

    // Dynamic physics object with a collision shape and initial angular velocity
    commands.spawn((
        RigidBody::Dynamic,
        Collider::cuboid(1.0, 1.0, 1.0),
        AngularVelocity(Vec3::new(2.5, 3.5, 1.5)),
        Mesh3d(meshes.add(Cuboid::from_length(1.0))),
        MeshMaterial3d(materials.add(Color::srgb_u8(124, 144, 255))),
        Transform::from_xyz(0.0, 4.0, 0.0),
    ));

    // Light
    commands.spawn((
        PointLight {
            shadows_enabled: true,
            ..default()
        },
        Transform::from_xyz(4.0, 8.0, 4.0),
    ));

    // Camera
    commands.spawn((
        Camera3d::default(),
        Transform::from_xyz(-2.5, 4.5, 9.0).looking_at(Vec3::ZERO, Dir3::Y),
    ));
}