Animation example + adding animaiton to GLTF inspector

Cargo.toml

@@ -15,5 +15,9 @@ path = "bin/camera-image-ui.rs"
 name = "ui-wtf"
 path = "bin/ui-wtf.rs"
 
+[[bin]]
+name = "animation-wtf"
+path = "bin/animation-wtf.rs"
+
 [dependencies]
 bevy = "0.10"

bin/animation-wtf.rs

@@ -0,0 +1,75 @@
+use std::f32::consts::PI;
+
+use bevy::{pbr::CascadeShadowConfigBuilder, prelude::*};
+
+#[derive(Resource)]
+struct AnimationClips(Vec<Handle<AnimationClip>>);
+
+fn main() {
+    App::new()
+        .add_plugins(DefaultPlugins.set(WindowPlugin {
+            primary_window: Some(Window {
+                title: "Animation WTF".into(),
+                resolution: (640., 480.).into(),
+                ..default()
+            }),
+            ..default()
+        }))
+        .add_startup_system(init)
+        .add_system(spawn_animation)
+        .run();
+}
+
+fn init(mut commands: Commands, server: Res<AssetServer>) {
+    // Load gltf/animation assets
+    commands.insert_resource(AnimationClips(vec![
+        server.load("models/monkey-nod.glb#Animation0")
+    ]));
+
+    commands
+        .spawn(SpatialBundle { ..default() })
+        .with_children(|parent| {
+            // spawn camera
+            parent.spawn(Camera3dBundle {
+                transform: Transform::from_xyz(10.0, 10.0, 15.0).looking_at(Vec3::ZERO, Vec3::Y),
+                ..default()
+            });
+
+            parent.spawn(DirectionalLightBundle {
+                transform: Transform::from_rotation(Quat::from_euler(
+                    EulerRot::ZYX,
+                    0.0,
+                    1.0,
+                    -PI / 4.0,
+                )),
+                directional_light: DirectionalLight {
+                    shadows_enabled: true,
+                    ..default()
+                },
+                cascade_shadow_config: CascadeShadowConfigBuilder {
+                    first_cascade_far_bound: 20.0,
+                    maximum_distance: 40.0,
+                    ..default()
+                }
+                .into(),
+                ..default()
+            });
+            parent.spawn(SceneBundle {
+                scene: server.load("models/monkey-nod.glb#Scene0"),
+                ..default()
+            });
+        });
+}
+
+fn spawn_animation(
+    animations: Res<AnimationClips>,
+    mut player: Query<&mut AnimationPlayer>,
+    mut done: Local<bool>,
+) {
+    if !*done {
+        if let Ok(mut player) = player.get_single_mut() {
+            player.play(animations.0[0].clone_weak()).repeat();
+            *done = true;
+        }
+    }
+}

bin/gltf-inspect.rs

@@ -32,6 +32,7 @@ fn main() {
         .add_startup_system(spawn_base_ui)
         .add_system(spawn_models)
         .add_system(spawn_ui)
+        .add_system(spawn_animation)
         .add_system(rotate_model)
         .add_system(zoom_model)
         .add_system(scroll)
@@ -70,7 +71,9 @@ struct Container;
 #[derive(Component)]
 struct Active;
 
-// Event
+///
+/// Event for managing which entities are tagged "Active"
+#[derive(Debug)]
 struct ManageActive(Option<Entity>);
 
 ///
@@ -81,7 +84,7 @@ fn load_models(mut commands: Commands, ass: Res<AssetServer>) {
         .iter()
         .map(|weak| weak.clone().typed::<Gltf>())
         .collect();
-    info!("Scene Handles: {:#?}", _handles);
+    // info!("Scene Handles: {:#?}", _handles);
     commands.insert_resource(Models { _handles });
 }
 
@@ -318,9 +321,33 @@ fn spawn_ui(
     }
 }
 
+fn spawn_animation(
+    mut animation_evr: EventReader<AssetEvent<AnimationClip>>,
+    mut player: Query<&mut AnimationPlayer>,
+    mut playing: Local<Vec<Handle<AnimationClip>>>,
+    clips: Res<Assets<AnimationClip>>,
+) {
+    for event in animation_evr.iter() {
+        match event {
+            AssetEvent::Created { handle } => {
+                if !playing.contains(handle) {
+                    if let Ok(mut player) = player.get_single_mut() {
+                        player.start(handle.clone()).repeat();
+                        (*playing).push(handle.clone());
+                    } else {
+                        info!("Could not load animation player");
+                    }
+                }
+            }
+            AssetEvent::Removed { .. } => (),
+            AssetEvent::Modified { .. } => (),
+        }
+    }
+}
+
 ///
 /// Rotate a model as part of inspection
-/// TODO: Only modify selected entities
+/// TODO: move light with model (want to see shadows)
 fn rotate_model(
     buttons: Res<Input<MouseButton>>,
     mut mouse_evr: EventReader<MouseMotion>,
@@ -410,11 +437,12 @@ fn select(
             scene_cam.is_active = true;
 
             // Set relevant entities active
-            let message = parents.iter()
-                                 .find(|&parent| parent_search.iter_descendants(parent)
+            let message = parents.iter().find(|&parent| {
+                parent_search
+                    .iter_descendants(parent)
                     .find(|&entity| Some(entity) == *selected)
                     .is_some()
-                                 );
+            });
             events.send(ManageActive(message));
         }
     }
@@ -455,6 +483,7 @@ fn manage_active(
     current: Query<Entity, With<Active>>,
 ) {
     for event in events.iter() {
+        info!("Setting active: {:?}", event);
         match event {
             ManageActive(None) => {
                 for entity in current.iter() {
@@ -466,8 +495,7 @@ fn manage_active(
             ManageActive(Some(entity)) => {
                 for child in query.iter_descendants(*entity) {
                     if let Some(mut entity_commands) = commands.get_entity(child) {
-                        info!("Setting active: {:?}", child);
-                        entity_commands.log_components();
+                        // entity_commands.log_components();
                         entity_commands.insert(Active);
                     }
                 }