Basically the intro works...

There's def some bugs with clicking through the intro title...

examples/shadow.rs

@@ -8,10 +8,7 @@ fn main() {
         .run();
 }
 
-fn init(
-	server: Res<AssetServer>,
-	mut commands: Commands,
-) {
+fn init(server: Res<AssetServer>, mut commands: Commands) {
     commands.spawn(SceneBundle {
         scene: server.load("models/shadow-example.gltf#Scene0"),
         ..default()
@@ -25,7 +22,8 @@ fn add_shadows(
     lights.iter_mut().for_each(|(e, mut l)| {
         l.shadows_enabled = true;
 
-		let config: bevy::pbr::CascadeShadowConfig = bevy::pbr::CascadeShadowConfigBuilder { ..default() }.into();
+        let config: bevy::pbr::CascadeShadowConfig =
+            bevy::pbr::CascadeShadowConfigBuilder { ..default() }.into();
         commands.entity(e).insert(config);
     });
 }

src/audio.rs

@@ -27,7 +27,9 @@ impl Plugin for AudioPlugin {
                 audio_trigger.run_if(on_event::<AudioEvent>()),
                 control_volume.run_if(resource_changed::<AudioVolume>),
                 toggle_volume.run_if(just_pressed(KeyCode::KeyM)),
-                set_intensity.run_if(in_state(GameState::Play).and_then(resource_exists::<tweak::GameTweaks>.and_then(resource_changed::<game::Board>))),
+                set_intensity.run_if(in_state(GameState::Play).and_then(
+                    resource_exists::<tweak::GameTweaks>.and_then(resource_changed::<game::Board>),
+                )),
             ),
         );
     }
@@ -171,10 +173,14 @@ fn set_intensity(
         (intensity_ratio * intensity_range) + intensity_min
     };
 
-    query.iter()
+    query
+        .iter()
         .filter(|(_, event)| **event == AudioEvent::MainMusic)
         .for_each(|(source, _)| {
             info!("Setting music intensity to {:?}", value);
-            source.event_instance.set_parameter_by_name("Intensity", value, true).expect("Set intensity parameter");
+            source
+                .event_instance
+                .set_parameter_by_name("Intensity", value, true)
+                .expect("Set intensity parameter");
         });
 }

src/display3d.rs

@@ -1,5 +1,5 @@
 use bevy::core_pipeline::{
-    contrast_adaptive_sharpening::ContrastAdaptiveSharpeningSettings, fxaa::Fxaa
+    contrast_adaptive_sharpening::ContrastAdaptiveSharpeningSettings, fxaa::Fxaa,
 };
 
 use crate::prelude::*;
@@ -12,6 +12,7 @@ impl Plugin for Display3dPlugin {
             TemporalAntiAliasPlugin,
             MaterialPlugin::<DissolveMaterial>::default(),
         ))
+        .init_state::<DissolvingAnimation>()
         .insert_resource(Msaa::Off)
         .insert_resource(AmbientLight {
             color: Color::WHITE,
@@ -38,7 +39,7 @@ impl Plugin for Display3dPlugin {
                 bloom_tweak
                     .run_if(resource_exists::<tweak::GameTweaks>)
                     .run_if(on_event::<AssetEvent<Tweaks>>()),
-                )
+            ),
         )
         .add_systems(
             Update,
@@ -83,9 +84,9 @@ impl Plugin for Display3dPlugin {
                 skip_animation
                     .run_if(in_state(GameState::Play))
                     .run_if(pressed(KeyCode::Enter).or_else(pressed(MouseButton::Left))),
-                un_skip_animation
-                    .run_if(in_state(GameState::Play))
-                    .run_if(just_released(KeyCode::Enter).or_else(just_released(MouseButton::Left))),
+                un_skip_animation.run_if(in_state(GameState::Play)).run_if(
+                    just_released(KeyCode::Enter).or_else(just_released(MouseButton::Left)),
+                ),
                 monitor_animations
                     .run_if(in_state(GameState::Play))
                     .run_if(any_component_changed::<AnimationPlayer>()),
@@ -105,18 +106,22 @@ impl Plugin for Display3dPlugin {
                 .run_if(in_state(GameState::Play))
                 .run_if(in_state(DisplayState::Display3d)),
         )
+        .add_systems(
+            Update,
+            (
+                animate_title_light_in.run_if(in_state(DissolvingAnimation::In)),
+                animate_title_light_out.run_if(in_state(DissolvingAnimation::Out)),
+            )
+        )
         .add_systems(
             OnEnter(GameState::Intro),
             (
                 // Toggle hidden/visible 3d entities
                 manage_state_entities::<DisplayState>(),
                 // fixup_shadows,
-                color_grading_tweak
-                    .run_if(resource_exists::<tweak::GameTweaks>),
-                fog_tweak
-                    .run_if(resource_exists::<tweak::GameTweaks>),
-                bloom_tweak
-                    .run_if(resource_exists::<tweak::GameTweaks>),
+                color_grading_tweak.run_if(resource_exists::<tweak::GameTweaks>),
+                fog_tweak.run_if(resource_exists::<tweak::GameTweaks>),
+                bloom_tweak.run_if(resource_exists::<tweak::GameTweaks>),
                 update_pieces.run_if(resource_exists::<tweak::GameTweaks>),
             ),
         )
@@ -129,20 +134,17 @@ impl Plugin for Display3dPlugin {
                     .run_if(in_state(DisplayState::Display3d)),
             ),
         )
-        .add_systems(OnEnter(GameState::Title), (
-            fixup_shadows,
-            intro_title_dissolve,
-        ))
+        .add_systems(
+            OnEnter(GameState::Title),
+            (fixup_shadows, intro_title_dissolve),
+        )
         .add_systems(OnExit(GameState::Title), outro_title_dissolve)
         .add_systems(
             Update,
-            continue_title.run_if(
-                in_state(GameState::Title)
-                    .and_then(not(any_with_component::<Dissolving>))
-                    .and_then(
-                        just_pressed(KeyCode::Enter).or_else(just_pressed(MouseButton::Left)),
-                    ),
-            ),
+            continue_title
+                .run_if(in_state(GameState::Title))
+                .run_if(not(any_with_component::<Dissolving>))
+                .run_if(just_pressed(KeyCode::Enter).or_else(just_pressed(MouseButton::Left))),
         );
     }
 }
@@ -165,6 +167,14 @@ pub(crate) enum Dissolving {
     Out(f32),
 }
 
+#[derive(Debug, States, Hash, Default, PartialEq, Eq, Clone, Component)]
+enum DissolvingAnimation {
+    #[default]
+    None,
+    In,
+    Out
+}
+
 #[derive(Debug, Resource, Clone)]
 struct AssetsMap {
     hitbox_shape: Handle<Mesh>,
@@ -356,9 +366,7 @@ fn hydrate_camera(
                 },
                 FogSettings {
                     color: Color::rgba(0.25, 0.25, 0.25, 1.0),
-                    falloff: FogFalloff::Exponential {
-                        density: 0.0,
-                    },
+                    falloff: FogFalloff::Exponential { density: 0.0 },
                     ..default()
                 },
             ));
@@ -465,7 +473,7 @@ fn set_board_model(
 }
 
 fn set_title_model(
-    mut titles: Query<(&mut Handle<Scene>, &mut Transform), (Added<TitleText>, With<Display3d>)>,
+    mut titles: Query<(&mut Handle<Scene>, &mut Transform, &mut Visibility), (Added<TitleText>, With<Display3d>)>,
     gltfs: Res<Assets<Gltf>>,
     tweaks: Res<Assets<Tweaks>>,
     tweaks_file: Res<tweak::GameTweaks>,
@@ -473,7 +481,7 @@ fn set_title_model(
     let tweak = tweaks
         .get(tweaks_file.handle.clone())
         .expect("Load tweakfile");
-    titles.iter_mut().for_each(|(mut handle, mut transform)| {
+    titles.iter_mut().for_each(|(mut handle, mut transform, mut visibility)| {
         info!("Setting title model");
         let assets_handle = tweak
             .get_handle::<Gltf>("display3d_models_assets_file")
@@ -489,9 +497,12 @@ fn set_title_model(
             )
             .expect("Game title model")
             .clone();
+
         transform.translation -= Vec3::Y * 0.5;
         transform.rotate_local_z(std::f32::consts::PI);
         transform.rotate_local_y(std::f32::consts::PI / 2.0);
+
+        *visibility = Visibility::Hidden;
     });
 }
 
@@ -957,9 +968,7 @@ fn skip_animation(
     })
 }
 
-fn un_skip_animation(
-    mut players: Query<&mut AnimationPlayer, With<Animating>>,
-) {
+fn un_skip_animation(mut players: Query<&mut AnimationPlayer, With<Animating>>) {
     players.iter_mut().for_each(|mut p| {
         debug!("Un-Skipping animation");
         p.set_speed(1.0);
@@ -1179,7 +1188,10 @@ struct Animating;
 
 fn monitor_animations(
     active: Query<(Entity, &AnimationPlayer), (Changed<AnimationPlayer>, With<Animating>)>,
-    mut inactive: Query<(Entity, &mut AnimationPlayer), (Changed<AnimationPlayer>, Without<Animating>)>,
+    mut inactive: Query<
+        (Entity, &mut AnimationPlayer),
+        (Changed<AnimationPlayer>, Without<Animating>),
+    >,
     mut commands: Commands,
 ) {
     // Remove Animating component from players that are done
@@ -1192,7 +1204,11 @@ fn monitor_animations(
     // Set inactive entities to active
     inactive.iter_mut().for_each(|(entity, mut player)| {
         if !player.is_finished() && *player.animation_clip() != Handle::<AnimationClip>::default() {
-            info!("Entity {:?} is playing {:?}, adding animating marker", entity, player.animation_clip());
+            info!(
+                "Entity {:?} is playing {:?}, adding animating marker",
+                entity,
+                player.animation_clip()
+            );
             commands.entity(entity).insert(Animating);
             player.set_speed(1.0);
         }
@@ -1202,22 +1218,26 @@ fn monitor_animations(
 fn intro_title_dissolve(
     mut query: Query<(Entity, &Dissolvable), With<TitleText>>,
     mut commands: Commands,
+    mut next: ResMut<NextState<DissolvingAnimation>>,
 ) {
     query.iter_mut().for_each(|(entity, dissolving)| {
         commands
             .entity(entity)
             .insert(Dissolving::In(dissolving.duration));
+        next.set(DissolvingAnimation::In);
     });
 }
 
 fn outro_title_dissolve(
     mut query: Query<(Entity, &Dissolvable), With<TitleText>>,
     mut commands: Commands,
+    mut next: ResMut<NextState<DissolvingAnimation>>,
 ) {
     query.iter_mut().for_each(|(entity, dissolving)| {
         commands
             .entity(entity)
             .insert(Dissolving::Out(dissolving.duration));
+        next.set(DissolvingAnimation::Out);
     });
 }
 
@@ -1239,6 +1259,7 @@ fn dissolve_animation(
     keys: Res<ButtonInput<KeyCode>>,
     mouse: Res<ButtonInput<MouseButton>>,
     time: Res<Time>,
+    mut next: ResMut<NextState<DissolvingAnimation>>,
 ) {
     query
         .iter_mut()
@@ -1294,6 +1315,7 @@ fn dissolve_animation(
                     entity, percentage
                 );
                 commands.entity(entity).remove::<Dissolving>();
+                next.set(DissolvingAnimation::None);
             }
         });
 }
@@ -1330,7 +1352,10 @@ fn color_grading_tweak(
 
     query.iter_mut().for_each(|mut cg| {
         *cg = ColorGrading {
-            exposure, gamma, pre_saturation, post_saturation
+            exposure,
+            gamma,
+            pre_saturation,
+            post_saturation,
         }
     })
 }
@@ -1340,7 +1365,6 @@ fn fog_tweak(
     tweaks: Res<Assets<Tweaks>>,
     tweaks_file: Res<tweak::GameTweaks>,
 ) {
-
     query.iter_mut().for_each(|mut fog| {
         let tweak = tweaks
             .get(tweaks_file.handle.clone())
@@ -1365,3 +1389,71 @@ fn bloom_tweak(
         bloom.intensity = tweak.get::<f32>("color_bloom_intensity").unwrap();
     })
 }
+
+fn animate_title_light_in(
+    mut query: Query<(Entity, &mut Visibility), With<TitleText>>,
+    children: Query<&Children>,
+    mut lights: Query<&mut SpotLight>,
+    mut t: Local<Timer>,
+    mut started: Local<bool>,
+    time: Res<Time>,
+) {
+    // Over 6 seconds, fade in to 600 intensity
+    if !(*started) {
+        *t = Timer::from_seconds(6.0, TimerMode::Once);
+        *started = true
+    } else {
+        t.tick(time.delta());
+    }
+
+    info!("Spotlight in");
+
+    let intensity = t.fraction() * 409800.0;
+
+    query.iter_mut().for_each(|(e, mut v)| {
+        if *v == Visibility::Hidden {
+            *v = Visibility::Inherited;
+        }
+
+        children.iter_descendants(e).for_each(|c| {
+            if let Ok(mut spot_light) = lights.get_mut(c) {
+                info!("SPOTLIGHT UPDATE {:?}", spot_light);
+                spot_light.intensity = intensity;
+            }
+        })
+    });
+}
+
+fn animate_title_light_out(
+    mut query: Query<(Entity, &mut Visibility), With<TitleText>>,
+    children: Query<&Children>,
+    mut lights: Query<&mut SpotLight>,
+    mut t: Local<Timer>,
+    mut started: Local<bool>,
+    time: Res<Time>,
+) {
+    // Over 6 seconds, fade in to 600 intensity
+    if !(*started) {
+        *t = Timer::from_seconds(3.0, TimerMode::Once);
+        *started = true
+    } else {
+        t.tick(time.delta());
+    }
+
+    info!("Spotlight out");
+
+    let intensity = (1.0 - t.fraction()) * 409800.0;
+
+    query.iter_mut().for_each(|(e, mut v)| {
+        if *v == Visibility::Hidden {
+            *v = Visibility::Inherited;
+        }
+
+        children.iter_descendants(e).for_each(|c| {
+            if let Ok(mut spot_light) = lights.get_mut(c) {
+                info!("SPOTLIGHT UPDATE {:?}", spot_light);
+                spot_light.intensity = intensity;
+            }
+        })
+    });
+}

src/intro.rs

@@ -236,6 +236,7 @@ fn scroll_text(
     keys: Res<ButtonInput<KeyCode>>,
     mouse: Res<ButtonInput<MouseButton>>,
     parents: Query<&Parent>,
+    mut prompt: ResMut<NextState<ui::Prompt>>,
     mut commands: Commands,
 ) {
     let tweak = tweaks.get(tweaks_file.handle.clone()).expect("Load tweaks");
@@ -282,6 +283,9 @@ fn scroll_text(
             // If the entire paragraph is played out, remove the component
             if text.sections.iter().all(|s| s.style.color == text_color) {
                 commands.entity(entity).remove::<ui::TextScroll>();
+
+                // Let the user know they can skip this
+                prompt.set(ui::Prompt::ClickToContinue);
             }
         });
 }

src/ui.rs

@@ -4,7 +4,10 @@ pub(crate) struct UiPlugin;
 
 impl Plugin for UiPlugin {
     fn build(&self, app: &mut App) {
-        app.add_systems(Startup, load_assets).add_systems(
+        app.add_systems(Startup, load_assets)
+            .init_state::<Prompt>()
+            .add_systems(Startup, init_prompts)
+            .add_systems(
                 Update,
                 (
                     manage_cursor.run_if(
@@ -17,7 +20,10 @@ impl Plugin for UiPlugin {
                             .and_then(resource_exists::<tweak::GameTweaks>),
                     ),
                 ),
-        );
+            )
+            .add_systems(OnEnter(GameState::Intro), show_click_prompt)
+            .add_systems(OnExit(GameState::Title), hide_click_prompt)
+            ;
     }
 }
 
@@ -35,6 +41,13 @@ pub(crate) struct TextScroll {
 #[derive(Debug, Component)]
 pub(crate) struct TextScrollAnimation;
 
+#[derive(Debug, States, Hash, Default, PartialEq, Eq, Clone, Component)]
+pub(crate) enum Prompt {
+    #[default]
+    None,
+    ClickToContinue,
+}
+
 fn load_assets(server: ResMut<AssetServer>, mut commands: Commands) {
     commands.insert_resource(UiFont {
         handle: server.load("fonts/Silkscreen/Silkscreen-Regular.ttf"),
@@ -145,3 +158,45 @@ fn scale_ui(
         }
     });
 }
+
+fn init_prompts(mut commands: Commands) {
+    // ClickToContinue
+    commands
+        .spawn((
+            Prompt::ClickToContinue,
+            NodeBundle {
+                style: Style {
+                    position_type: PositionType::Absolute,
+                    width: Val::Percent(100.0),
+                    height: Val::Auto,
+                    bottom: Val::Px(0.0),
+                    align_items: AlignItems::Center,
+                    justify_items: JustifyItems::Center,
+                    justify_content: JustifyContent::Center,
+                    ..default()
+                },
+                visibility: Visibility::Hidden,
+                ..default()
+            },
+        ))
+        .with_children(|parent| {
+            parent.spawn(TextBundle {
+                style: Style { ..default() },
+                text: Text::from_section("Click to continue", TextStyle { ..default() }),
+                visibility: Visibility::Inherited,
+                ..default()
+            });
+        });
+}
+
+fn show_click_prompt(
+    mut query: Query<(&mut Visibility, &Prompt)>,
+) {
+    query.iter_mut().for_each(|(mut vis, _)| *vis = Visibility::Inherited);
+}
+
+fn hide_click_prompt(
+    mut query: Query<(&mut Visibility, &Prompt)>,
+) {
+    query.iter_mut().for_each(|(mut vis, _)| *vis = Visibility::Hidden);
+}