use bevy::app::AppExit;

const TRACK_LENGTH: f32 = 1000.;

#[derive(Debug, Clone, Eq, PartialEq, Hash)]
enum RaceState {
    Running,
    Finished,
}

            .insert_resource(RoundTimer(Timer::from_seconds(1., true)))

            .add_state(RaceState::Running)
            .insert_resource(RoundTimer(Timer::from_seconds(0.1, true)))

            .add_system(racers_movement_system);

            .add_system_set(
                SystemSet::on_update(RaceState::Running).with_system(racers_movement_system),
            )
            .add_system_set(SystemSet::on_enter(RaceState::Finished).with_system(race_end_system));

    mut state: ResMut<State<RaceState>>,

            if p.0 >= TRACK_LENGTH {
                state.replace(RaceState::Finished).unwrap();
            }

    }
}
fn race_end_system(mut app_exit_events: EventWriter<AppExit>, query: Query<(&Racer, &Position)>) {
    println!("The race is over");
    for (r, p) in query.iter() {
        println!("Racer {} at {:?}", r.0, p.0);

    app_exit_events.send(AppExit);