Blink moving lights' meshes on and off.

src/glamor.rs

@@ -3,10 +3,11 @@ use bevy::{
     prelude::*,
     render::{options::WgpuOptions, render_resource::WgpuFeatures},
 };
+use rand::{thread_rng, Rng};
 
-use crate::geometry::CyberSphere;
+use crate::{geometry::CyberSphere, lights::AnimateCyberLightWireframe};
 
-fn wireframe(
+fn wireframe_planet(
     mut commands: Commands,
     mut wireframe_config: ResMut<WireframeConfig>,
     query: Query<Entity, With<CyberSphere>>,
@@ -16,6 +17,26 @@ fn wireframe(
     commands.entity(ent).insert(Wireframe);
 }
 
+fn wireframify_lights(
+    mut commands: Commands,
+    no_wires: Query<Entity, (With<AnimateCyberLightWireframe>, Without<Wireframe>)>,
+    wires: Query<Entity, (With<AnimateCyberLightWireframe>, With<Wireframe>)>,
+) {
+    let chance = 0.005;
+
+    let rng = &mut thread_rng();
+    for e in no_wires.iter() {
+        if rng.gen::<f32>() < chance {
+            commands.entity(e).insert(Wireframe);
+        }
+    }
+    for e in wires.iter() {
+        if rng.gen::<f32>() < chance {
+            commands.entity(e).remove::<Wireframe>();
+        }
+    }
+}
+
 // public plugin
 pub struct CyberGlamorPlugin;
 impl Plugin for CyberGlamorPlugin {
@@ -24,7 +45,8 @@ impl Plugin for CyberGlamorPlugin {
             features: WgpuFeatures::POLYGON_MODE_LINE,
             ..Default::default()
         })
-        .add_startup_system_to_stage(StartupStage::PostStartup, wireframe)
+        .add_startup_system_to_stage(StartupStage::PostStartup, wireframe_planet)
+        .add_system(wireframify_lights)
         .add_plugin(WireframePlugin);
     }
 }

src/lights.rs

@@ -13,6 +13,9 @@ struct AnimatedCyberLight {
     rate: f32,
 }
 
+#[derive(Component)]
+pub(crate) struct AnimateCyberLightWireframe;
+
 fn spawn_lights(
     mut commands: Commands,
     mut meshes: ResMut<Assets<Mesh>>,
@@ -45,8 +48,8 @@ fn spawn_lights(
     // spawn 200 orbiting bisexual lights
     for _ in 0..255 {
         let hue = rng.gen_range(260.0..320.0);
-        let saturation = rng.gen_range(0.8..0.95);
-        let lightness = rng.gen_range(0.4..0.7);
+        let saturation = rng.gen_range(0.85..0.99);
+        let lightness = rng.gen_range(0.3..0.7);
         let color = Color::hsl(hue, saturation, lightness);
 
         let axis = crate::random_sphere_vec(rng);
@@ -85,19 +88,20 @@ fn spawn_lights(
                         ..Default::default()
                     })
                     .with_children(|builder| {
-                        builder.spawn_bundle(PbrBundle {
-                            mesh: meshes.add(Mesh::from(shape::Icosphere {
-                                radius,
-                                subdivisions: 2,
-                            })),
-
-                            material: materials.add(StandardMaterial {
-                                base_color: color,
-                                emissive: color,
+                        builder
+                            .spawn_bundle(PbrBundle {
+                                mesh: meshes.add(Mesh::from(shape::Icosphere {
+                                    radius,
+                                    subdivisions: 1,
+                                })),
+                                material: materials.add(StandardMaterial {
+                                    base_color: color,
+                                    emissive: color,
+                                    ..Default::default()
+                                }),
                                 ..Default::default()
-                            }),
-                            ..Default::default()
-                        });
+                            })
+                            .insert(AnimateCyberLightWireframe);
                     }); // mesh child
             }); // light child
     }