add debug function that applies JupitersRing shader to all scenes

src/main.rs

@@ -47,6 +47,7 @@ impl Plugin for OutFlyPlugin {
     fn build(&self, app: &mut App) {
         app.add_systems(Startup, setup);
         app.add_systems(Update, handle_input);
+        app.add_systems(Update, debug);
         app.insert_resource(var::Settings::default());
         app.insert_resource(var::GameVars::default());
         app.add_plugins((
@@ -95,3 +96,28 @@ fn handle_input(
         }
     }
 }
+
+fn debug(
+    settings: Res<var::Settings>,
+    keyboard_input: Res<ButtonInput<KeyCode>>,
+    mut commands: Commands,
+    mut materials_custom: ResMut<Assets<shading::JupitersRing>>,
+    materials: Query<(Entity, &Name, &Handle<StandardMaterial>)>,
+) {
+    if settings.dev_mode && keyboard_input.pressed(KeyCode::KeyP) {
+        for (entity, name, mat) in &materials {
+            dbg!(name);
+            dbg!(mat);
+            let mut entity = commands.entity(entity);
+            entity.remove::<Handle<StandardMaterial>>();
+            let ring_radius = 229_000_000.0;
+            let jupiter_radius = 71_492_000.0;
+            let material = materials_custom.add(shading::JupitersRing {
+                alpha_mode: AlphaMode::Blend,
+                ring_radius: ring_radius,
+                jupiter_radius: jupiter_radius,
+            });
+            entity.insert(material);
+        }
+    }
+}