particles: show them only in augmented reality

src/visual.rs

@@ -128,6 +128,7 @@ pub fn setup(
 
 pub fn spawn_effects(
     mut commands: Commands,
+    settings: Res<var::Settings>,
     mut er_effect: EventReader<SpawnEffectEvent>,
     mut materials: ResMut<Assets<StandardMaterial>>,
     mut meshes: ResMut<Assets<Mesh>>,
@@ -173,6 +174,7 @@ pub fn spawn_effects(
                 let texture = asset_server.load("textures/exhaust.png");
                 commands.spawn((
                     IsEffect,
+                    hud::ToggleableHudElement,
                     RigidBody::Kinematic,
                     bevy::pbr::NotShadowCaster,
                     pos,
@@ -205,6 +207,11 @@ pub fn spawn_effects(
                             alpha_mode: AlphaMode::Blend,
                             ..Default::default()
                         }),
+                        visibility: if settings.hud_active {
+                            Visibility::Inherited
+                        } else {
+                            Visibility::Hidden
+                        },
                         ..default()
                     },
                 ));