limit total concurrent enemies to 10

CHANGELOG.md

@@ -15,6 +15,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 
 - Spawn enemies at random distance and direction from player
+- Limit total concurrent enemies to 10
 - Decrease static orbit scale (planets are now closer)
 - Clamp orbit distance (prevents Moon orbiting inside of Earth sprite)
 - Indicators spawn on update allowing new entities to be pointed to

src/ships/enemy.rs

@@ -86,11 +86,12 @@ pub(crate) fn spawn_enemies(
     sprites: Res<SpriteAssets>,
     mut spawn_timer: ResMut<SpawnTimer>,
     player_position: Query<&Transform, With<Player>>,
+    enemies: Query<&Enemy>,
 ) {
     // tick the timer
     spawn_timer.0.tick(time.delta());
 
-    if spawn_timer.0.finished() {
+    if spawn_timer.0.finished() && enemies.iter().count() < 10 {
         let Ok(from) = player_position.get_single() else {
             return;
         };