cli: skip to level

src/game.rs

@@ -21,6 +21,8 @@ pub enum AudioMsg {
 	Switch,
 }
 
+pub struct FirstLevel(pub LevelId);
+
 #[derive(Clone, Copy, Eq, Hash, PartialEq)]
 pub struct LevelId(pub u32);
 
@@ -99,12 +101,13 @@ pub struct CollisionCount(usize);
 // Systems
 
 fn setup(
+	first_level: Res<FirstLevel>,
 	mut current_level: ResMut<CurrentLevel>,
 	mut level_startup_event: EventWriter<LevelStartupEvent>,
 	mut camera_query: Query<&mut Transform, With<Camera>>,
 ) {
 	if current_level.0.is_none() {
-		current_level.0 = Some(LevelId(0));
+		current_level.0 = Some(first_level.0);
 	}
 
 	crate::levels::setup_level(&mut level_startup_event, &mut camera_query);

src/main.rs

@@ -26,10 +26,20 @@ fn main() {
 	#[cfg(not(target_arch = "wasm32"))]
 	std::thread::spawn(move || audio::setup(audio_event_receiver));
 
+	#[cfg(not(target_arch = "wasm32"))]
+	let first_level = game::LevelId(
+		std::env::args()
+			.nth(1)
+			.map_or(0, |s| s.parse().unwrap_or(0)),
+	);
+	#[cfg(target_arch = "wasm32")]
+	let first_level = game::LevelId(0);
+
 	App::new()
 		.insert_resource(Msaa { samples: 4 })
 		.insert_resource(audio_event_sender)
 		.add_state(AppState::Menu)
+		.insert_resource(game::FirstLevel(first_level))
 		.insert_resource(ClearColor(Color::BLACK))
 		.add_plugins(DefaultPlugins)
 		.add_plugin(RapierPhysicsPlugin::<NoUserData>::pixels_per_meter(64.0))