chore(Blenvy:Bevy): more cleanups

* updated logic to account for bevy 0.14 changes (animation graph, transitions component etc)
 * added back & updated per blueprint animation example to the testing project
 * updated matching blend file with new style components
 * spawnHere => spawnBlueprint
 * added back tagging of Blueprint contents with "InBlueprint" / noInBlueprint
 * overall cleanup pass (wip)

crates/bevy_gltf_blueprints/src/assets.rs

@@ -7,22 +7,20 @@ use crate::{BluePrintsConfig, BlueprintAnimations};
 /// helper component, is used to store the list of sub blueprints to enable automatic loading of dependend blueprints
 #[derive(Component, Reflect, Default, Debug)]
 #[reflect(Component)]
-pub struct MyAsset{
+pub struct BlueprintAsset {
     pub name: String,
-    pub path: String
+    pub path: String,
 }
 
 /// helper component, is used to store the list of sub blueprints to enable automatic loading of dependend blueprints
 #[derive(Component, Reflect, Default, Debug)]
 #[reflect(Component)]
-pub struct LocalAssets(pub Vec<MyAsset>);
+pub struct LocalAssets(pub Vec<BlueprintAsset>);
 
 /// helper component, is used to store the list of sub blueprints to enable automatic loading of dependend blueprints
 #[derive(Component, Reflect, Default, Debug)]
 #[reflect(Component)]
-pub struct BlueprintAssets(pub Vec<MyAsset>);
-
-
+pub struct BlueprintAssets(pub Vec<BlueprintAsset>);
 
 ////////////////////////
 ///
@@ -44,7 +42,6 @@ pub(crate) struct AssetLoadTracker {
     pub handle: Handle<LoadedUntypedAsset>,
 }
 
-
 /// helper component, for tracking loaded assets
 #[derive(Component, Debug)]
 pub(crate) struct AssetsToLoad {

crates/bevy_gltf_blueprints/src/lib.rs

@@ -90,7 +90,7 @@ impl Default for BlueprintsPlugin {
     fn default() -> Self {
         Self {
             aabbs: false,
-            material_library: false
+            material_library: false,
         }
     }
 }
@@ -119,8 +119,8 @@ impl Plugin for BlueprintsPlugin {
             .register_type::<HashMap<u32, Vec<String>>>()
             .register_type::<HashMap<String, HashMap<u32, Vec<String>>>>()
             .add_event::<AnimationMarkerReached>()
-            .register_type::<MyAsset>()
-            .register_type::<Vec<MyAsset>>()
+            .register_type::<BlueprintAsset>()
+            .register_type::<Vec<BlueprintAsset>>()
             .register_type::<Vec<String>>()
             .register_type::<LocalAssets>()
             .register_type::<BlueprintAssets>()

crates/bevy_gltf_blueprints/src/materials.rs

@@ -41,8 +41,6 @@ pub(crate) fn materials_inject(
     asset_server: Res<AssetServer>,
     mut commands: Commands,
 ) {
-
-
     for (entity, material_info) in material_infos.iter() {
         println!("Entity with material info {:?} {:?}", entity, material_info);
         let material_full_path = format!("{}#{}", material_info.path, material_info.name);
@@ -77,7 +75,6 @@ pub(crate) fn materials_inject(
                     ..Default::default()
                 })
                 .insert(BlueprintMaterialAssetsNotLoaded);
-           
         }
     }
 }
@@ -160,7 +157,10 @@ pub(crate) fn materials_inject2(
             let mat_gltf = assets_gltf
                 .get(model_handle.id())
                 .expect("material should have been preloaded");
-            if mat_gltf.named_materials.contains_key(&material_info.name as &str) {
+            if mat_gltf
+                .named_materials
+                .contains_key(&material_info.name as &str)
+            {
                 let material = mat_gltf
                     .named_materials
                     .get(&material_info.name as &str)

crates/bevy_gltf_blueprints/src/spawn_from_blueprints.rs

@@ -2,7 +2,10 @@ use std::path::{Path, PathBuf};
 
 use bevy::{gltf::Gltf, prelude::*, utils::hashbrown::HashMap};
 
-use crate::{BlueprintAssets, AssetsToLoad, AssetLoadTracker, BluePrintsConfig, BlueprintAnimations, BlueprintAssetsLoaded, BlueprintAssetsNotLoaded};
+use crate::{
+    AssetLoadTracker, AssetsToLoad, BluePrintsConfig, BlueprintAnimations, BlueprintAssets,
+    BlueprintAssetsLoaded, BlueprintAssetsNotLoaded,
+};
 
 /// this is a flag component for our levels/game world
 #[derive(Component)]
@@ -27,7 +30,6 @@ pub struct SpawnHere;
 /// flag component for dynamically spawned scenes
 pub struct Spawned;
 
-
 #[derive(Component, Debug)]
 /// flag component added when a Blueprint instance ist Ready : ie :
 /// - its assets have loaded
@@ -58,15 +60,11 @@ pub struct AddToGameWorld;
 /// helper component, just to transfer child data
 pub(crate) struct OriginalChildren(pub Vec<Entity>);
 
-
-
 pub(crate) fn test_thingy(
     spawn_placeholders: Query<
-    (
-        Entity,
-        &BlueprintPath,
-    ),
-    (Added<BlueprintPath>, Without<Spawned>, Without<SpawnHere>)>,
+        (Entity, &BlueprintPath),
+        (Added<BlueprintPath>, Without<Spawned>, Without<SpawnHere>),
+    >,
 
     // before 0.14 we have to use a seperate query, after migrating we can query at the root level
     entities_with_assets: Query<
@@ -81,17 +79,12 @@ pub(crate) fn test_thingy(
         (Added<BlueprintAssets>), //  Added<BlueprintAssets>
     >,
 
-
-    bla_bla : Query<
-     (Entity,
-    &BlueprintName,
-    &BlueprintPath,
-    Option<&Parent>,),(Added<BlueprintPath>)
+    bla_bla: Query<
+        (Entity, &BlueprintName, &BlueprintPath, Option<&Parent>),
+        (Added<BlueprintPath>),
     >,
-mut commands: Commands,
-asset_server: Res<AssetServer>,
-
-
+    mut commands: Commands,
+    asset_server: Res<AssetServer>,
 ) {
     for (entity, blueprint_path) in spawn_placeholders.iter() {
         //println!("added blueprint_path {:?}", blueprint_path);
@@ -105,7 +98,10 @@ asset_server: Res<AssetServer>,
     }
 
     for (entity, blueprint_name, blueprint_path, parent) in bla_bla.iter() {
-        println!("added blueprint to spawn {:?} {:?}", blueprint_name, blueprint_path);
+        println!(
+            "added blueprint to spawn {:?} {:?}",
+            blueprint_name, blueprint_path
+        );
         let untyped_handle = asset_server.load_untyped(&blueprint_path.0);
         let asset_id = untyped_handle.id();
         let loaded = asset_server.is_loaded_with_dependencies(asset_id);
@@ -135,7 +131,7 @@ asset_server: Res<AssetServer>,
         }
     }
 
-    for (child_entity, child_entity_name, all_assets) in entities_with_assets.iter(){
+    for (child_entity, child_entity_name, all_assets) in entities_with_assets.iter() {
         println!("added assets {:?} to {:?}", all_assets, child_entity_name);
         if all_assets.is_some() {
             let mut asset_infos: Vec<AssetLoadTracker> = vec![];
@@ -184,21 +180,23 @@ pub(crate) fn check_for_loaded2(
     asset_server: Res<AssetServer>,
     mut commands: Commands,
 ) {
-    for (entity,entity_name, mut assets_to_load) in blueprint_assets_to_load.iter_mut() {
+    for (entity, entity_name, mut assets_to_load) in blueprint_assets_to_load.iter_mut() {
         let mut all_loaded = true;
         let mut loaded_amount = 0;
         let total = assets_to_load.asset_infos.len();
         for tracker in assets_to_load.asset_infos.iter_mut() {
             let asset_id = tracker.id;
             let loaded = asset_server.is_loaded_with_dependencies(asset_id);
-            println!("loading {}: // load state: {:?}", tracker.name, asset_server.load_state(asset_id));
+            println!(
+                "loading {}: // load state: {:?}",
+                tracker.name,
+                asset_server.load_state(asset_id)
+            );
 
             // FIXME: hack for now
-            let mut failed = false;// asset_server.load_state(asset_id) == bevy::asset::LoadState::Failed(_error);
+            let mut failed = false; // asset_server.load_state(asset_id) == bevy::asset::LoadState::Failed(_error);
             match asset_server.load_state(asset_id) {
-                bevy::asset::LoadState::Failed(_) => {
-                    failed = true
-                },
+                bevy::asset::LoadState::Failed(_) => failed = true,
                 _ => {}
             }
             tracker.loaded = loaded || failed;
@@ -209,7 +207,7 @@ pub(crate) fn check_for_loaded2(
             }
         }
         let progress: f32 = loaded_amount as f32 / total as f32;
-        println!("progress: {}",progress);
+        println!("progress: {}", progress);
         assets_to_load.progress = progress;
 
         if all_loaded {
@@ -219,14 +217,11 @@ pub(crate) fn check_for_loaded2(
                 .entity(entity)
                 .insert(BlueprintAssetsLoaded)
                 .remove::<BlueprintAssetsNotLoaded>()
-                .remove::<AssetsToLoad>()
-                ;
+                .remove::<AssetsToLoad>();
         }
     }
 }
 
-
-
 pub(crate) fn spawn_from_blueprints2(
     spawn_placeholders: Query<
         (
@@ -254,15 +249,8 @@ pub(crate) fn spawn_from_blueprints2(
 
     children: Query<&Children>,
 ) {
-    for (
-        entity,
-        blupeprint_name,
-        blueprint_path,
-        transform,
-        original_parent,
-        add_to_world,
-        name,
-    ) in spawn_placeholders.iter()
+    for (entity, blupeprint_name, blueprint_path, transform, original_parent, add_to_world, name) in
+        spawn_placeholders.iter()
     {
         info!(
             "attempting to spawn blueprint {:?} for entity {:?}, id: {:?}, parent:{:?}",
@@ -272,12 +260,9 @@ pub(crate) fn spawn_from_blueprints2(
         // info!("attempting to spawn {:?}", model_path);
         let model_handle: Handle<Gltf> = asset_server.load(blueprint_path.0.clone()); // FIXME: kinda weird now
 
-        let gltf = assets_gltf.get(&model_handle).unwrap_or_else(|| {
-            panic!(
-                "gltf file {:?} should have been loaded",
-                &blueprint_path.0
-            )
-        });
+        let gltf = assets_gltf
+            .get(&model_handle)
+            .unwrap_or_else(|| panic!("gltf file {:?} should have been loaded", &blueprint_path.0));
 
         // WARNING we work under the assumtion that there is ONLY ONE named scene, and that the first one is the right one
         let main_scene_name = gltf
@@ -301,7 +286,7 @@ pub(crate) fn spawn_from_blueprints2(
             }
         }
 
-        let mut named_animations:HashMap<String, Handle<AnimationClip>> = HashMap::new() ;
+        let mut named_animations: HashMap<String, Handle<AnimationClip>> = HashMap::new();
         for (key, value) in gltf.named_animations.iter() {
             named_animations.insert(key.to_string(), value.clone());
         }
@@ -317,7 +302,7 @@ pub(crate) fn spawn_from_blueprints2(
             OriginalChildren(original_children),
             BlueprintAnimations {
                 // these are animations specific to the inside of the blueprint
-                named_animations: named_animations//gltf.named_animations.clone(),
+                named_animations: named_animations, //gltf.named_animations.clone(),
             },
         ));
 
@@ -329,8 +314,3 @@ pub(crate) fn spawn_from_blueprints2(
         }
     }
 }
-
-
-
-
-

crates/bevy_gltf_components/src/process_gltfs.rs

@@ -16,36 +16,42 @@ use bevy::{
 use crate::{ronstring_to_reflect_component, GltfProcessed};
 
 // , mut entity_components: HashMap<Entity, Vec<(Box<dyn Reflect>, TypeRegistration)>>
-fn find_entity_components(entity: Entity, name: &Name, parent: &Parent, reflect_components: Vec<(Box<dyn Reflect>, TypeRegistration)>, entity_components: &HashMap<Entity, Vec<(Box<dyn Reflect>, TypeRegistration)>>) -> (Entity, Vec<(Box<dyn Reflect>, TypeRegistration)>){
-     // we assign the components specified /xxx_components objects to their parent node
-     let mut target_entity = entity;
-     // if the node contains "components" or ends with "_pa" (ie add to parent), the components will not be added to the entity itself but to its parent
-     // this is mostly used for Blender collections
-     if name.as_str().contains("components") || name.as_str().ends_with("_pa") {
-         debug!("adding components to parent");
-         target_entity = parent.get();
-     }
-     debug!("adding to {:?}", target_entity);
+fn find_entity_components(
+    entity: Entity,
+    name: &Name,
+    parent: &Parent,
+    reflect_components: Vec<(Box<dyn Reflect>, TypeRegistration)>,
+    entity_components: &HashMap<Entity, Vec<(Box<dyn Reflect>, TypeRegistration)>>,
+) -> (Entity, Vec<(Box<dyn Reflect>, TypeRegistration)>) {
+    // we assign the components specified /xxx_components objects to their parent node
+    let mut target_entity = entity;
+    // if the node contains "components" or ends with "_pa" (ie add to parent), the components will not be added to the entity itself but to its parent
+    // this is mostly used for Blender collections
+    if name.as_str().contains("components") || name.as_str().ends_with("_pa") {
+        debug!("adding components to parent");
+        target_entity = parent.get();
+    }
+    debug!("adding to {:?}", target_entity);
 
-     // if there where already components set to be added to this entity (for example when entity_data was refering to a parent), update the vec of entity_components accordingly
-     // this allows for example blender collection to provide basic ecs data & the instances to override/ define their own values
-     if entity_components.contains_key(&target_entity) {
-         let mut updated_components: Vec<(Box<dyn Reflect>, TypeRegistration)> = Vec::new();
-         let current_components = &entity_components[&target_entity];
-         // first inject the current components
-         for (component, type_registration) in current_components {
-             updated_components.push((component.clone_value(), type_registration.clone()));
-         }
-         // then inject the new components: this also enables overwrite components set in the collection
-         for (component, type_registration) in reflect_components {
-             updated_components.push((component.clone_value(), type_registration));
-         }
-         return (target_entity, updated_components)
-         //entity_components.insert(target_entity, updated_components);
-     } else {
-        return  (target_entity, reflect_components);
-         // entity_components.insert(target_entity, reflect_components);
-     }
+    // if there where already components set to be added to this entity (for example when entity_data was refering to a parent), update the vec of entity_components accordingly
+    // this allows for example blender collection to provide basic ecs data & the instances to override/ define their own values
+    if entity_components.contains_key(&target_entity) {
+        let mut updated_components: Vec<(Box<dyn Reflect>, TypeRegistration)> = Vec::new();
+        let current_components = &entity_components[&target_entity];
+        // first inject the current components
+        for (component, type_registration) in current_components {
+            updated_components.push((component.clone_value(), type_registration.clone()));
+        }
+        // then inject the new components: this also enables overwrite components set in the collection
+        for (component, type_registration) in reflect_components {
+            updated_components.push((component.clone_value(), type_registration));
+        }
+        return (target_entity, updated_components);
+        //entity_components.insert(target_entity, updated_components);
+    } else {
+        return (target_entity, reflect_components);
+        // entity_components.insert(target_entity, reflect_components);
+    }
 }
 
 /// main function: injects components into each entity in gltf files that have `gltf_extras`, using reflection
@@ -72,11 +78,11 @@ pub fn add_components_from_gltf_extras(world: &mut World) {
         let type_registry = type_registry.read();
         let reflect_components = ronstring_to_reflect_component(&extra.value, &type_registry);
 
-        let (target_entity, updated_components) = find_entity_components(entity, name, parent, reflect_components, &entity_components);
+        let (target_entity, updated_components) =
+            find_entity_components(entity, name, parent, reflect_components, &entity_components);
         entity_components.insert(target_entity, updated_components);
     }
 
-
     for (entity, name, extra, parent) in scene_extras.iter(world) {
         debug!(
             "Name: {}, entity {:?}, parent: {:?}, scene_extras {:?}",
@@ -87,7 +93,8 @@ pub fn add_components_from_gltf_extras(world: &mut World) {
         let type_registry = type_registry.read();
         let reflect_components = ronstring_to_reflect_component(&extra.value, &type_registry);
 
-        let (target_entity, updated_components) = find_entity_components(entity, name, parent, reflect_components, &entity_components);
+        let (target_entity, updated_components) =
+            find_entity_components(entity, name, parent, reflect_components, &entity_components);
         entity_components.insert(target_entity, updated_components);
     }
 
@@ -101,7 +108,8 @@ pub fn add_components_from_gltf_extras(world: &mut World) {
         let type_registry = type_registry.read();
         let reflect_components = ronstring_to_reflect_component(&extra.value, &type_registry);
 
-        let (target_entity, updated_components) = find_entity_components(entity, name, parent, reflect_components, &entity_components);
+        let (target_entity, updated_components) =
+            find_entity_components(entity, name, parent, reflect_components, &entity_components);
         entity_components.insert(target_entity, updated_components);
     }
 
@@ -115,11 +123,11 @@ pub fn add_components_from_gltf_extras(world: &mut World) {
         let type_registry = type_registry.read();
         let reflect_components = ronstring_to_reflect_component(&extra.value, &type_registry);
 
-        let (target_entity, updated_components) = find_entity_components(entity, name, parent, reflect_components, &entity_components);
+        let (target_entity, updated_components) =
+            find_entity_components(entity, name, parent, reflect_components, &entity_components);
         entity_components.insert(target_entity, updated_components);
     }
 
-
     for (entity, components) in entity_components {
         let type_registry: &AppTypeRegistry = world.resource();
         let type_registry = type_registry.clone();

crates/bevy_gltf_components/src/ronstring_to_reflect_component.rs

@@ -16,9 +16,7 @@ pub fn ronstring_to_reflect_component(
     // println!("ron_string {:?}", ron_string);
     for (name, value) in lookup.into_iter() {
         let parsed_value: String = match value.clone() {
-            Value::String(str) => {
-                str
-            }
+            Value::String(str) => str,
             _ => ron::to_string(&value).unwrap().to_string(),
         };
 
@@ -95,9 +93,7 @@ fn bevy_components_string_to_components(
     let lookup: HashMap<String, Value> = ron::from_str(&parsed_value).unwrap();
     for (key, value) in lookup.into_iter() {
         let parsed_value: String = match value.clone() {
-            Value::String(str) => {
-                str
-            }
+            Value::String(str) => str,
             _ => ron::to_string(&value).unwrap().to_string(),
         };
 

crates/blenvy/README.md

@@ -52,7 +52,7 @@ fn spawn_blueprint(
     if keycode.just_pressed(KeyCode::S) {
         let new_entity = commands.spawn((
             BlueprintInfo(name: "Health_Pickup".to_string(), path:""), // mandatory !!
-            SpawnHere, // mandatory !!
+            SpawnBlueprint, // mandatory !!
             TransformBundle::from_transform(Transform::from_xyz(x, 2.0, y)), // VERY important !!
             // any other component you want to insert
         ));
@@ -115,7 +115,7 @@ You can spawn entities from blueprints like this:
 ```rust no_run
 commands.spawn((
     BlueprintInfo("Health_Pickup".to_string()), // mandatory !!
-    SpawnHere, // mandatory !!
+    SpawnBlueprint, // mandatory !!
     
     TransformBundle::from_transform(Transform::from_xyz(x, 2.0, y)), // optional
     // any other component you want to insert
@@ -135,7 +135,7 @@ you can just add any additional components you need when spawning :
 ```rust no_run
 commands.spawn((
     BlueprintInfo("Health_Pickup".to_string()),
-    SpawnHere,
+    SpawnBlueprint,
     TransformBundle::from_transform(Transform::from_xyz(x, 2.0, y)),
     // from Rapier/bevy_xpbd: this means the entity will also have a velocity component when inserted into the world
     Velocity {
@@ -153,7 +153,7 @@ for example
 ```rust no_run
 commands.spawn((
     BlueprintInfo("Health_Pickup".to_string()),
-    SpawnHere,
+    SpawnBlueprint,
     TransformBundle::from_transform(Transform::from_xyz(x, 2.0, y)),
     HealthPowerUp(20)// if this is component is also present inside the "Health_Pickup" blueprint, that one will be replaced with this component during spawning
 ))
@@ -164,7 +164,7 @@ commands.spawn((
 
 There is also a ```BluePrintBundle``` for convenience , which just has 
  * a ```BlueprintInfo``` component
- * a ```SpawnHere``` component
+ * a ```SpawnBlueprint``` component
 
 ## Additional information
 

crates/blenvy/old/old.rs

@@ -49,7 +49,7 @@ pub(crate) fn prepare_blueprints(
             Option<&Name>,
             Option<&BlueprintsList>,
         ),
-        (Added<BlueprintName>, Added<SpawnHere>, Without<Spawned>),
+        (Added<BlueprintName>, Added<SpawnBlueprint>, Without<Spawned>),
     >,
 
     mut commands: Commands,

crates/blenvy/old/spawn_from_blueprints copy.rs

@@ -22,7 +22,7 @@ pub struct BlueprintPath(pub String);
 /// flag component needed to signify the intent to spawn a Blueprint
 #[derive(Component, Reflect, Default, Debug)]
 #[reflect(Component)]
-pub struct SpawnHere;
+pub struct SpawnBlueprint;
 
 #[derive(Component)]
 /// flag component for dynamically spawned scenes
@@ -93,7 +93,7 @@ pub(crate) fn blueprints_prepare_spawn(
         Entity,
         &BlueprintPath,
     ),
-    (Added<BlueprintPath>, Without<Spawned>, Without<SpawnHere>)>,
+    (Added<BlueprintPath>, Without<Spawned>, Without<SpawnBlueprint>)>,
 
     // before 0.14 we have to use a seperate query, after migrating we can query at the root level
     entities_with_assets: Query<

crates/blenvy/old/spawn_post_process.rs

@@ -5,8 +5,8 @@ use bevy::prelude::*;
 use bevy::scene::SceneInstance;
 // use bevy::utils::hashbrown::HashSet;
 
-use crate::{BlueprintAnimationPlayerLink, BlueprintAnimations, BlueprintInfo, BlueprintReadyForPostProcess, BlueprintInstanceReady, BlueprintSpawning, SpawnTrackRoot, SubBlueprintsSpawnTracker};
-use crate::{SpawnHere, Spawned};
+use crate::{BlueprintAnimationPlayerLink, BlueprintAnimations, BlueprintInfo, BlueprintReadyForPostProcess, BlueprintInstanceReady, BlueprintSpawning, SubBlueprintSpawnRoot, SubBlueprintsSpawnTracker};
+use crate::{SpawnBlueprint, Spawned};
 use crate::{
     BlueprintEvent, CopyComponents, InBlueprint, NoInBlueprint, OriginalChildren
 };
@@ -32,9 +32,9 @@ pub(crate) fn spawned_blueprint_post_process( // rename to '
             &BlueprintInfo,
 
             // sub blueprint instances tracker
-            Option<&SpawnTrackRoot>
+            Option<&SubBlueprintSpawnRoot>
         ),
-        (With<SpawnHere>, With<SceneInstance>, Added<BlueprintReadyForPostProcess>),
+        (With<SpawnBlueprint>, With<SceneInstance>, Added<BlueprintReadyForPostProcess>),
     >,
     added_animation_players: Query<(Entity, &Parent), Added<AnimationPlayer>>,
     all_children: Query<&Children>,
@@ -103,7 +103,7 @@ pub(crate) fn spawned_blueprint_post_process( // rename to '
             }
         }
 
-        commands.entity(original).remove::<SpawnHere>();
+        commands.entity(original).remove::<SpawnBlueprint>();
         commands.entity(original).remove::<Spawned>();
         // commands.entity(original).remove::<Handle<Scene>>(); // FIXME: if we delete the handle to the scene, things get despawned ! not what we want
         //commands.entity(original).remove::<BlueprintAssetsLoadState>(); // also clear the sub assets tracker to free up handles, perhaps just freeing up the handles and leave the rest would be better ?

crates/blenvy/src/blueprints/aabb.rs

@@ -22,13 +22,18 @@ pub fn compute_scene_aabbs(
                 .aabb_cache
                 .get(&name.to_string())
                 .expect("we should have the aabb available");
-            commands.entity(root_entity).insert(*aabb).insert(BlueprintReadyForFinalizing);
+            commands
+                .entity(root_entity)
+                .insert(*aabb)
+                .insert(BlueprintReadyForFinalizing);
         } else {
             let aabb = compute_descendant_aabb(root_entity, &children, &existing_aabbs);
             blenvy_config.aabb_cache.insert(name.to_string(), aabb);
             info!("generating aabb for {:?}", name);
-            commands.entity(root_entity).insert(aabb).insert(BlueprintReadyForFinalizing);
-
+            commands
+                .entity(root_entity)
+                .insert(aabb)
+                .insert(BlueprintReadyForFinalizing);
         }
     }
     for entity in other_entities.iter() {

crates/blenvy/src/blueprints/animation.rs

@@ -6,6 +6,8 @@ use bevy::utils::HashMap;
 /// storage for animations for a given entity's BLUEPRINT (ie for example a characters animations), essentially a clone of gltf's `named_animations`
 pub struct BlueprintAnimations {
     pub named_animations: HashMap<String, Handle<AnimationClip>>,
+    pub named_indices: HashMap<String, AnimationNodeIndex>,
+    pub graph: Handle<AnimationGraph>,
 }
 
 #[derive(Component, Debug)]
@@ -20,6 +22,7 @@ pub struct BlueprintAnimationPlayerLink(pub Entity);
 /// storage for scene level animations for a given entity (hierarchy), essentially a clone of gltf's `named_animations`
 pub struct SceneAnimations {
     pub named_animations: HashMap<String, Handle<AnimationClip>>,
+    pub named_indices: HashMap<String, AnimationNodeIndex>,
 }
 
 #[derive(Component, Debug)]

crates/blenvy/src/blueprints/assets.rs

@@ -1,16 +1,12 @@
-use std::path::{Path, PathBuf};
-
-use bevy::{asset::LoadedUntypedAsset, gltf::Gltf, prelude::*, utils::HashMap};
+use bevy::{asset::LoadedUntypedAsset, prelude::*};
 use serde::Deserialize;
 
-use crate::{BlenvyConfig, BlueprintAnimations};
-
 /// helper component, is used to store the list of sub blueprints to enable automatic loading of dependend blueprints
 #[derive(Component, Reflect, Default, Debug, Deserialize)]
 #[reflect(Component)]
-pub struct MyAsset{
+pub struct BlueprintAsset {
     pub name: String,
-    pub path: String
+    pub path: String,
 }
 
 /// helper component, is used to store the list of sub blueprints to enable automatic loading of dependend blueprints
@@ -18,7 +14,7 @@ pub struct MyAsset{
 #[reflect(Component)]
 pub struct BlueprintAssets {
     /// only this field should get filled in from the Blender side
-    pub assets: Vec<MyAsset>,
+    pub assets: Vec<BlueprintAsset>,
     /// set to default when deserializing
     #[serde(default)]
     #[reflect(default)]
@@ -31,9 +27,7 @@ pub struct BlueprintAssets {
     #[serde(skip)]
     pub asset_infos: Vec<AssetLoadTracker>,
 }
-//(pub Vec<MyAsset>);
-
-
+//(pub Vec<BlueprintAsset>);
 
 ////////////////////////
 ///
@@ -46,7 +40,7 @@ pub(crate) struct BlueprintAssetsNotLoaded;
 
 /// helper component, for tracking loaded assets's loading state, id , handle etc
 #[derive(Debug, Reflect)]
-pub(crate) struct AssetLoadTracker {
+pub struct AssetLoadTracker {
     #[allow(dead_code)]
     pub name: String,
     pub path: String,

crates/blenvy/src/blueprints/hot_reload.rs

@@ -0,0 +1,53 @@
+use crate::{BlueprintAssetsLoadState, BlueprintAssetsLoaded, BlueprintInfo, SpawnBlueprint};
+use bevy::asset::AssetEvent;
+use bevy::prelude::*;
+use bevy::scene::SceneInstance;
+
+pub(crate) fn react_to_asset_changes(
+    mut gltf_events: EventReader<AssetEvent<Gltf>>,
+    // mut untyped_events: EventReader<AssetEvent<LoadedUntypedAsset>>,
+    mut blueprint_assets: Query<(
+        Entity,
+        Option<&Name>,
+        &BlueprintInfo,
+        &mut BlueprintAssetsLoadState,
+        Option<&Children>,
+    )>,
+    asset_server: Res<AssetServer>,
+    mut commands: Commands,
+) {
+    for event in gltf_events.read() {
+        // LoadedUntypedAsset
+        match event {
+            AssetEvent::Modified { id } => {
+                // React to the image being modified
+                // println!("Modified gltf {:?}", asset_server.get_path(*id));
+                for (entity, entity_name, _blueprint_info, mut assets_to_load, children) in
+                    blueprint_assets.iter_mut()
+                {
+                    for tracker in assets_to_load.asset_infos.iter_mut() {
+                        if asset_server.get_path(*id).is_some() {
+                            if tracker.path == asset_server.get_path(*id).unwrap().to_string() {
+                                println!("HOLY MOLY IT DETECTS !!, now respawn {:?}", entity_name);
+                                if children.is_some() {
+                                    for child in children.unwrap().iter() {
+                                        commands.entity(*child).despawn_recursive();
+                                    }
+                                }
+                                commands
+                                    .entity(entity)
+                                    .remove::<BlueprintAssetsLoaded>()
+                                    .remove::<SceneInstance>()
+                                    .remove::<BlueprintAssetsLoadState>()
+                                    .insert(SpawnBlueprint);
+
+                                break;
+                            }
+                        }
+                    }
+                }
+            }
+            _ => {}
+        }
+    }
+}

crates/blenvy/src/blueprints/materials.rs

@@ -1,6 +1,6 @@
 use bevy::prelude::*;
 
-use crate::{BlenvyConfig, BlueprintReadyForPostProcess};
+use crate::BlenvyConfig;
 
 #[derive(Component, Reflect, Default, Debug)]
 #[reflect(Component)]
@@ -13,18 +13,16 @@ pub struct MaterialInfo {
 #[derive(Component, Default, Debug)]
 pub struct MaterialProcessed;
 
-
 /// system that injects / replaces materials from material library
 pub(crate) fn inject_materials(
     mut blenvy_config: ResMut<BlenvyConfig>,
     material_infos: Query<
         (Entity, &MaterialInfo, &Children),
-        Without<MaterialProcessed>
-        // (With<BlueprintReadyForPostProcess>)
-        /*(
-            Added<BlueprintMaterialAssetsLoaded>,
-            With<BlueprintMaterialAssetsLoaded>,
-        ),*/
+        Without<MaterialProcessed>, // (With<BlueprintReadyForPostProcess>)
+                                    /*(
+                                        Added<BlueprintMaterialAssetsLoaded>,
+                                        With<BlueprintMaterialAssetsLoaded>,
+                                    ),*/
     >,
     with_materials_and_meshes: Query<
         (),
@@ -55,10 +53,14 @@ pub(crate) fn inject_materials(
             material_found = Some(material);
         } else {
             let model_handle: Handle<Gltf> = asset_server.load(material_info.path.clone()); // FIXME: kinda weird now
-            let mat_gltf = assets_gltf
-                .get(model_handle.id())
-                .expect(&format!("materials file {} should have been preloaded", material_info.path));
-            if mat_gltf.named_materials.contains_key(&material_info.name as &str) {
+            let mat_gltf = assets_gltf.get(model_handle.id()).expect(&format!(
+                "materials file {} should have been preloaded",
+                material_info.path
+            ));
+            if mat_gltf
+                .named_materials
+                .contains_key(&material_info.name as &str)
+            {
                 let material = mat_gltf
                     .named_materials
                     .get(&material_info.name as &str)

crates/blenvy/src/blueprints/mod.rs

@@ -16,10 +16,10 @@ pub use materials::*;
 pub mod copy_components;
 pub use copy_components::*;
 
-use core::fmt;
-use std::path::PathBuf;
+pub(crate) mod hot_reload;
+pub(crate) use hot_reload::*;
 
-use bevy::{prelude::*, render::primitives::Aabb, utils::HashMap};
+use bevy::{prelude::*, utils::HashMap};
 
 use crate::{BlenvyConfig, GltfComponentsSet};
 
@@ -33,24 +33,26 @@ pub enum GltfBlueprintsSet {
 #[derive(Bundle)]
 pub struct BluePrintBundle {
     pub blueprint: BlueprintInfo,
-    pub spawn_here: SpawnHere,
+    pub spawn_here: SpawnBlueprint,
 }
 impl Default for BluePrintBundle {
     fn default() -> Self {
         BluePrintBundle {
-            blueprint: BlueprintInfo{ name: "default".into(), path:"".into()},
-            spawn_here: SpawnHere,
+            blueprint: BlueprintInfo {
+                name: "default".into(),
+                path: "".into(),
+            },
+            spawn_here: SpawnBlueprint,
         }
     }
 }
 
-
 #[derive(Debug, Clone)]
 /// Plugin for gltf blueprints
 pub struct BlueprintsPlugin {
     /// Automatically generate aabbs for the blueprints root objects
     pub aabbs: bool,
-    ///
+    /// use library of materials
     pub material_library: bool,
 }
 
@@ -58,7 +60,7 @@ impl Default for BlueprintsPlugin {
     fn default() -> Self {
         Self {
             aabbs: false,
-            material_library: false
+            material_library: false,
         }
     }
 }
@@ -71,7 +73,6 @@ fn hot_reload(watching_for_changes: Res<WatchingForChanges>) -> bool {
     watching_for_changes.0
 }
 
-
 trait BlenvyApp {
     fn register_watching_for_changes(&mut self) -> &mut Self;
 }
@@ -92,16 +93,13 @@ impl BlenvyApp for App {
 pub(crate) struct WatchingForChanges(pub(crate) bool);
 const ASSET_ERROR: &str = ""; // TODO
 
-
 impl Plugin for BlueprintsPlugin {
     fn build(&self, app: &mut App) {
-        app
-            .register_watching_for_changes()
-
-
+        app.register_watching_for_changes()
+            .add_event::<BlueprintEvent>()
             .register_type::<BlueprintInfo>()
             .register_type::<MaterialInfo>()
-            .register_type::<SpawnHere>()
+            .register_type::<SpawnBlueprint>()
             .register_type::<BlueprintAnimations>()
             .register_type::<SceneAnimations>()
             .register_type::<AnimationInfo>()
@@ -111,15 +109,12 @@ impl Plugin for BlueprintsPlugin {
             .register_type::<HashMap<u32, Vec<String>>>()
             .register_type::<HashMap<String, HashMap<u32, Vec<String>>>>()
             .add_event::<AnimationMarkerReached>()
-            .register_type::<MyAsset>()
-            .register_type::<Vec<MyAsset>>()
+            .register_type::<BlueprintAsset>()
+            .register_type::<Vec<BlueprintAsset>>()
             .register_type::<Vec<String>>()
             .register_type::<BlueprintAssets>()
-
-            .add_event::<BlueprintEvent>()
-
-
             .register_type::<HashMap<String, Vec<String>>>()
+            .register_type::<HideUntilReady>()
             .configure_sets(
                 Update,
                 (GltfBlueprintsSet::Spawn, GltfBlueprintsSet::AfterSpawn)
@@ -133,14 +128,11 @@ impl Plugin for BlueprintsPlugin {
                     blueprints_check_assets_loading,
                     blueprints_assets_ready,
                     blueprints_scenes_spawned,
-                    blueprints_transfer_components,
-
+                    blueprints_cleanup_spawned_scene,
                     // post process
                     inject_materials,
-                    compute_scene_aabbs,// .run_if(aabbs_enabled),
-                        
+                    compute_scene_aabbs, // .run_if(aabbs_enabled),
                     blueprints_finalize_instances,
-
                 )
                     .chain()
                     .in_set(GltfBlueprintsSet::Spawn),
@@ -153,7 +145,6 @@ impl Plugin for BlueprintsPlugin {
                 ),
             )*/
             // hot reload
-            .add_systems(Update, react_to_asset_changes.run_if(hot_reload))
-            ;
+            .add_systems(Update, react_to_asset_changes.run_if(hot_reload));
     }
 }

crates/blenvy/src/blueprints/spawn_from_blueprints.rs

@@ -1,9 +1,12 @@
-use std::path::{Path, PathBuf};
+use std::path::PathBuf;
 
-use bevy::{asset::LoadedUntypedAsset, ecs::entity, gltf::Gltf, prelude::*, render::view::visibility, scene::SceneInstance, transform::commands, utils::hashbrown::HashMap};
+use bevy::{gltf::Gltf, prelude::*, scene::SceneInstance, utils::hashbrown::HashMap};
 use serde_json::Value;
 
-use crate::{BlueprintAssets, BlueprintAssetsLoadState, AssetLoadTracker, BlenvyConfig, BlueprintAnimations, BlueprintAssetsLoaded, BlueprintAssetsNotLoaded};
+use crate::{
+    AssetLoadTracker, BlenvyConfig, BlueprintAnimationPlayerLink, BlueprintAnimations,
+    BlueprintAssets, BlueprintAssetsLoadState, BlueprintAssetsLoaded, BlueprintAssetsNotLoaded,
+};
 
 /// this is a flag component for our levels/game world
 #[derive(Component)]
@@ -22,12 +25,7 @@ pub struct BlueprintInfo {
 /// flag component needed to signify the intent to spawn a Blueprint
 #[derive(Component, Reflect, Default, Debug)]
 #[reflect(Component)]
-pub struct SpawnHere;
-
-#[derive(Component)]
-/// flag component for dynamically spawned scenes
-pub struct Spawned;
-
+pub struct SpawnBlueprint;
 
 #[derive(Component, Debug)]
 /// flag component added when a Blueprint instance ist Ready : ie :
@@ -59,8 +57,8 @@ pub struct AddToGameWorld;
 /// helper component, just to transfer child data
 pub(crate) struct OriginalChildren(pub Vec<Entity>);
 
-
-#[derive(Component)]
+#[derive(Component, Reflect, Default, Debug)]
+#[reflect(Component)]
 /// You can add this component to a blueprint instance, and the instance will be hidden until it is ready
 /// You usually want to use this for worlds/level spawning , or dynamic spawning at runtime, but not when you are adding blueprint instances to an existing entity
 /// as it would first become invisible before re-appearing again
@@ -68,67 +66,64 @@ pub struct HideUntilReady;
 
 #[derive(Event, Debug)]
 pub enum BlueprintEvent {
-
-    /// event fired when a blueprint has finished loading its assets & before it attempts spawning
+    /// event fired when a blueprint has finished loading all of its assets & before it attempts spawning
     AssetsLoaded {
         entity: Entity,
         blueprint_name: String,
         blueprint_path: String,
         // TODO: add assets list ?
     },
-    /// event fired when a blueprint is COMPLETELY done spawning ie
-    /// - all its assets have been loaded
-    /// - the spawning attempt has been sucessfull
-    Spawned {
-        entity: Entity,
-        blueprint_name: String,
-        blueprint_path: String,
-    },
 
     ///
     InstanceReady {
         entity: Entity,
         blueprint_name: String,
         blueprint_path: String,
-    }
-    
+    },
 }
 
-
 // TODO: move this somewhere else ?
 #[derive(Component, Reflect, Debug, Default)]
 #[reflect(Component)]
 /// component used to mark any entity as Dynamic: aka add this to make sure your entity is going to be saved
 pub struct DynamicBlueprintInstance;
 
-
 // TODO: move these somewhere else ?
 #[derive(Component, Reflect, Debug, Default)]
 #[reflect(Component)]
-/// component gets added when a blueprint starts spawning, removed when spawning is done
+/// component gets added when a blueprint starts spawning, removed when spawning is completely done
 pub struct BlueprintSpawning;
 
-
 use gltf::Gltf as RawGltf;
 
-pub(crate) fn blueprints_prepare_spawn(
-    blueprint_instances_to_spawn : Query<
-    (
-        Entity,
-        &BlueprintInfo,
-        Option<&Parent>,
-        Option<&BlueprintAssets>,
-    ),(Added<SpawnHere>)
-    >,
-mut commands: Commands,
-asset_server: Res<AssetServer>,
-) {
+/*
+Overview of the Blueprint Spawning process
+    - Blueprint Load Assets
+    - Blueprint Assets Ready: spawn Blueprint's scene
+    - Blueprint Scene Ready (SceneInstance component is present):
+        - get list of sub Blueprints if any, inject sub blueprints spawn tracker
+    - Blueprint copy components to original entity, remove useless nodes
+    - Blueprint post process
+        - generate aabb (need full hierarchy in its final form)
+        - inject materials from library if needed
+    - Blueprint Ready
+        - bubble information up to parent blueprint instance
+        - if all sub_blueprints are ready => Parent blueprint Instance is ready
+ => distinguish between blueprint instances inside blueprint instances vs blueprint instances inside blueprints ??
+*/
 
-    for (entity, blueprint_info, parent, all_assets) in blueprint_instances_to_spawn.iter() {
-        info!("BLUEPRINT: to spawn detected: {:?} path:{:?}", blueprint_info.name, blueprint_info.path);
+pub(crate) fn blueprints_prepare_spawn(
+    blueprint_instances_to_spawn: Query<(Entity, &BlueprintInfo), Added<SpawnBlueprint>>,
+    mut commands: Commands,
+    asset_server: Res<AssetServer>,
+) {
+    for (entity, blueprint_info) in blueprint_instances_to_spawn.iter() {
+        info!(
+            "BLUEPRINT: to spawn detected: {:?} path:{:?}",
+            blueprint_info.name, blueprint_info.path
+        );
         //println!("all assets {:?}", all_assets);
         //////////////
-
         // we add the asset of the blueprint itself
         // TODO: add detection of already loaded data
         let untyped_handle = asset_server.load_untyped(&blueprint_info.path);
@@ -150,27 +145,20 @@ asset_server: Res<AssetServer>,
         /* prefetch attempt */
         let gltf = RawGltf::open(format!("assets/{}", blueprint_info.path)).unwrap();
         for scene in gltf.scenes() {
-            let foo_extras = scene.extras().clone().unwrap();
+            let scene_extras = scene.extras().clone().unwrap();
+            let lookup: HashMap<String, Value> = serde_json::from_str(&scene_extras.get()).unwrap();
 
-            let lookup: HashMap<String, Value> = serde_json::from_str(&foo_extras.get()).unwrap();
-            /*for (key, value) in lookup.clone().into_iter() {
-                println!("{} / {}", key, value);
-            }*/
-
-            if lookup.contains_key("BlueprintAssets"){
+            if lookup.contains_key("BlueprintAssets") {
                 let assets_raw = &lookup["BlueprintAssets"];
                 //println!("ASSETS RAW {}", assets_raw);
-                let all_assets: BlueprintAssets = ron::from_str(&assets_raw.as_str().unwrap()).unwrap();
+                let all_assets: BlueprintAssets =
+                    ron::from_str(&assets_raw.as_str().unwrap()).unwrap();
                 // println!("all_assets {:?}", all_assets);
 
                 for asset in all_assets.assets.iter() {
                     let untyped_handle = asset_server.load_untyped(&asset.path);
-                    //println!("untyped handle {:?}", untyped_handle);
-                    //asset_server.load(asset.path);
                     let asset_id = untyped_handle.id();
-                    //println!("ID {:?}", asset_id);
                     let loaded = asset_server.is_loaded_with_dependencies(asset_id);
-                    //println!("Loaded ? {:?}", loaded);
                     if !loaded {
                         asset_infos.push(AssetLoadTracker {
                             name: asset.name.clone(),
@@ -185,50 +173,46 @@ asset_server: Res<AssetServer>,
         }
 
         // now insert load tracker
+        // if there are assets to load
         if !asset_infos.is_empty() {
-            commands
-                .entity(entity)
-                .insert(BlueprintAssetsLoadState {
+            commands.entity(entity).insert((
+                BlueprintAssetsLoadState {
                     all_loaded: false,
                     asset_infos,
                     ..Default::default()
-                })
-                .insert(BlueprintAssetsNotLoaded)                
-                ;
+                },
+                BlueprintAssetsNotLoaded,
+            ));
         } else {
             commands.entity(entity).insert(BlueprintAssetsLoaded);
         }
-
-
+        // add the blueprint spawning marker
         commands.entity(entity).insert(BlueprintSpawning);
     }
 }
 
+/// This system tracks & updates the loading state of all blueprints assets
 pub(crate) fn blueprints_check_assets_loading(
     mut blueprint_assets_to_load: Query<
-        (Entity, Option<&Name>, &BlueprintInfo, &mut BlueprintAssetsLoadState),
+        (Entity, &BlueprintInfo, &mut BlueprintAssetsLoadState),
         With<BlueprintAssetsNotLoaded>,
     >,
     asset_server: Res<AssetServer>,
     mut commands: Commands,
     mut blueprint_events: EventWriter<BlueprintEvent>,
-
 ) {
-    for (entity, entity_name, blueprint_info, mut assets_to_load) in blueprint_assets_to_load.iter_mut() {
+    for (entity, blueprint_info, mut assets_to_load) in blueprint_assets_to_load.iter_mut() {
         let mut all_loaded = true;
         let mut loaded_amount = 0;
         let total = assets_to_load.asset_infos.len();
         for tracker in assets_to_load.asset_infos.iter_mut() {
             let asset_id = tracker.id;
             let loaded = asset_server.is_loaded_with_dependencies(asset_id);
-            // println!("loading {}: // load state: {:?}", tracker.name, asset_server.load_state(asset_id));
 
             // FIXME: hack for now
-            let mut failed = false;// asset_server.load_state(asset_id) == bevy::asset::LoadState::Failed(_error);
+            let mut failed = false; // asset_server.load_state(asset_id) == bevy::asset::LoadState::Failed(_error);
             match asset_server.load_state(asset_id) {
-                bevy::asset::LoadState::Failed(_) => {
-                    failed = true
-                },
+                bevy::asset::LoadState::Failed(_) => failed = true,
                 _ => {}
             }
             tracker.loaded = loaded || failed;
@@ -240,49 +224,53 @@ pub(crate) fn blueprints_check_assets_loading(
         }
         let progress: f32 = loaded_amount as f32 / total as f32;
         assets_to_load.progress = progress;
+        // println!("LOADING: in progress for ALL assets of {:?} (instance of {}): {} ",entity_name, blueprint_info.path, progress * 100.0);
 
         if all_loaded {
             assets_to_load.all_loaded = true;
             // println!("LOADING: DONE for ALL assets of {:?} (instance of {}), preparing for spawn", entity_name, blueprint_info.path);
-            // blueprint_events.send(BlueprintEvent::AssetsLoaded {blueprint_name:"".into(), blueprint_path: blueprint_info.path.clone() });
+            blueprint_events.send(BlueprintEvent::AssetsLoaded {
+                entity,
+                blueprint_name: blueprint_info.name.clone(),
+                blueprint_path: blueprint_info.path.clone(),
+            });
 
             commands
                 .entity(entity)
                 .insert(BlueprintAssetsLoaded)
                 .remove::<BlueprintAssetsNotLoaded>()
-                //.remove::<BlueprintAssetsLoadState>() //REMOVE it in release mode/ when hot reload is off, keep it for dev/hot reload
+                //.remove::<BlueprintAssetsLoadState>() //REMOVE this component in release mode/ when hot reload is off, keep it for dev/hot reload
                 ;
-        }else {
-            // println!("LOADING: in progress for ALL assets of {:?} (instance of {}): {} ",entity_name, blueprint_info.path, progress * 100.0);
         }
     }
 }
 
-
-pub(crate) fn blueprints_assets_ready(spawn_placeholders: Query<
-    (
-        Entity,
-        &BlueprintInfo,
-        Option<&Transform>,
-        Option<&Parent>,
-        Option<&AddToGameWorld>,
-        Option<&Name>,
-        Option<&HideUntilReady>
-    ),
-    (
-        With<BlueprintAssetsLoaded>,
-        Added<BlueprintAssetsLoaded>,
-        Without<BlueprintAssetsNotLoaded>,
-    ),
->,
-
-    mut commands: Commands,
+pub(crate) fn blueprints_assets_ready(
+    spawn_placeholders: Query<
+        (
+            Entity,
+            &BlueprintInfo,
+            Option<&Transform>,
+            Option<&Parent>,
+            Option<&AddToGameWorld>,
+            Option<&Name>,
+            Option<&HideUntilReady>,
+        ),
+        (
+            With<BlueprintAssetsLoaded>,
+            Added<BlueprintAssetsLoaded>,
+            Without<BlueprintAssetsNotLoaded>,
+        ),
+    >,
+    all_children: Query<&Children>,
     mut game_world: Query<Entity, With<GameWorldTag>>,
-
     assets_gltf: Res<Assets<Gltf>>,
     asset_server: Res<AssetServer>,
-    children: Query<&Children>,)
-{
+
+    mut graphs: ResMut<Assets<AnimationGraph>>,
+
+    mut commands: Commands,
+) {
     for (
         entity,
         blueprint_info,
@@ -329,16 +317,24 @@ pub(crate) fn blueprints_assets_ready(spawn_placeholders: Query<
         }
 
         let mut original_children: Vec<Entity> = vec![];
-        if let Ok(c) = children.get(entity) {
+        if let Ok(c) = all_children.get(entity) {
             for child in c.iter() {
                 original_children.push(*child);
             }
         }
 
-        let mut named_animations:HashMap<String, Handle<AnimationClip>> = HashMap::new() ;
-        for (key, value) in gltf.named_animations.iter() {
-            named_animations.insert(key.to_string(), value.clone());
+        // TODO: not a fan of this
+        // prepare data for animations
+        let mut graph = AnimationGraph::new();
+        let mut named_animations: HashMap<String, Handle<AnimationClip>> = HashMap::new();
+        let mut animation_indices: HashMap<String, AnimationNodeIndex> = HashMap::new();
+
+        for (key, clip) in gltf.named_animations.iter() {
+            named_animations.insert(key.to_string(), clip.clone());
+            let animation_index = graph.add_clip(clip.clone(), 1.0, graph.root);
+            animation_indices.insert(key.to_string(), animation_index);
         }
+        let graph = graphs.add(graph);
 
         commands.entity(entity).insert((
             SceneBundle {
@@ -348,99 +344,108 @@ pub(crate) fn blueprints_assets_ready(spawn_placeholders: Query<
             },
             OriginalChildren(original_children),
             BlueprintAnimations {
-                // these are animations specific to the inside of the blueprint
-                named_animations: named_animations//gltf.named_animations.clone(),
+                // these are animations specific to the blueprint
+                named_animations,
+                named_indices: animation_indices,
+                graph,
             },
         ));
 
-        if hide_until_ready.is_some() {
-            commands.entity(entity).insert(Visibility::Hidden); // visibility: 
-        }
+        if original_parent.is_none() {
+            // only allow hiding until ready when the entity does not have a parent (?)
+            if hide_until_ready.is_some() {
+                commands.entity(entity).insert(Visibility::Hidden); // visibility:
+            }
 
-        // only allow automatically adding a newly spawned blueprint instance to the "world", if the entity does not have a parent 
-         if add_to_world.is_some() && original_parent.is_some() {
-            let world = game_world
-                .get_single_mut()
-                .expect("there should be a game world present");
-            commands.entity(world).add_child(entity);
+            // only allow automatically adding a newly spawned blueprint instance to the "world", if the entity does not have a parent
+            if add_to_world.is_some() {
+                let world = game_world
+                    .get_single_mut()
+                    .expect("there should be a game world present");
+                commands.entity(world).add_child(entity);
+            }
         }
-
     }
 }
 
-
 #[derive(Component, Reflect, Debug, Default)]
 #[reflect(Component)]
-pub struct SubBlueprintsSpawnTracker{
-    pub sub_blueprint_instances: HashMap<Entity, bool>
+pub struct SubBlueprintsSpawnTracker {
+    pub sub_blueprint_instances: HashMap<Entity, bool>,
 }
 
 #[derive(Component, Reflect, Debug)]
 #[reflect(Component)]
-pub struct SpawnTrackRoot(pub Entity);
+pub struct SubBlueprintSpawnRoot(pub Entity);
 
 #[derive(Component, Reflect, Debug)]
 #[reflect(Component)]
 pub struct BlueprintSceneSpawned;
 
-
 #[derive(Component, Reflect, Debug)]
 #[reflect(Component)]
 pub struct BlueprintChildrenReady;
 
-#[derive(Component, Reflect, Debug)]
-#[reflect(Component)]
-pub struct BlueprintReadyForPostProcess;
-
 pub(crate) fn blueprints_scenes_spawned(
-    spawned_blueprint_scene_instances: Query<(Entity, Option<&Name>, Option<&Children>, Option<&SpawnTrackRoot>), (With<BlueprintSpawning>, Added<SceneInstance>)>,
-    with_blueprint_infos : Query<(Entity, Option<&Name>), With<BlueprintInfo>>,
+    spawned_blueprint_scene_instances: Query<
+        (
+            Entity,
+            Option<&Name>,
+            Option<&Children>,
+            Option<&SubBlueprintSpawnRoot>,
+        ),
+        (With<BlueprintSpawning>, Added<SceneInstance>),
+    >,
+    with_blueprint_infos: Query<(Entity, Option<&Name>), With<BlueprintInfo>>,
 
     all_children: Query<&Children>,
     all_parents: Query<&Parent>,
 
-    mut sub_blueprint_trackers: Query<(Entity, &mut SubBlueprintsSpawnTracker, &BlueprintInfo)>,
-
+    // mut sub_blueprint_trackers: Query<(Entity, &mut SubBlueprintsSpawnTracker, &BlueprintInfo)>,
     mut commands: Commands,
 
-    all_names: Query<&Name>
+    all_names: Query<&Name>,
 ) {
-    for (entity, name, children, track_root) in spawned_blueprint_scene_instances.iter(){
-        info!("Done spawning blueprint scene for entity named {:?} (track root: {:?})", name, track_root);
+    for (entity, name, children, track_root) in spawned_blueprint_scene_instances.iter() {
+        info!(
+            "Done spawning blueprint scene for entity named {:?} (track root: {:?})",
+            name, track_root
+        );
         let mut sub_blueprint_instances: Vec<Entity> = vec![];
         let mut sub_blueprint_instance_names: Vec<Name> = vec![];
-
         let mut tracker_data: HashMap<Entity, bool> = HashMap::new();
 
         if track_root.is_none() {
             for parent in all_parents.iter_ancestors(entity) {
                 if with_blueprint_infos.get(parent).is_ok() {
-    
-                    println!("found a parent with blueprint_info {:?} for {:?}", all_names.get(parent), all_names.get(entity));
-                    commands.entity(entity).insert(SpawnTrackRoot(parent));// Injecting to know which entity is the root
-
+                    println!(
+                        "found a parent with blueprint_info {:?} for {:?}",
+                        all_names.get(parent),
+                        all_names.get(entity)
+                    );
+                    commands
+                        .entity(entity)
+                        .insert(SubBlueprintSpawnRoot(parent)); // Injecting to know which entity is the root
                     break;
                 }
             }
         }
 
-
         if children.is_some() {
             for child in all_children.iter_descendants(entity) {
                 if with_blueprint_infos.get(child).is_ok() {
                     // println!("Parent blueprint instance of {:?} is {:?}",  all_names.get(child), all_names.get(entity));
-
-
-                   
-
                     for parent in all_parents.iter_ancestors(child) {
                         if with_blueprint_infos.get(parent).is_ok() {
-            
                             if parent == entity {
                                 //println!("yohoho");
-                                println!("Parent blueprint instance of {:?} is {:?}",  all_names.get(child), all_names.get(parent));
+                                println!(
+                                    "Parent blueprint instance of {:?} is {:?}",
+                                    all_names.get(child),
+                                    all_names.get(parent)
+                                );
 
-                                commands.entity(child).insert(SpawnTrackRoot(entity));// Injecting to know which entity is the root
+                                commands.entity(child).insert(SubBlueprintSpawnRoot(entity)); // Injecting to know which entity is the root
 
                                 tracker_data.insert(child, false);
 
@@ -448,7 +453,6 @@ pub(crate) fn blueprints_scenes_spawned(
                                 if let Ok(nname) = all_names.get(child) {
                                     sub_blueprint_instance_names.push(nname.clone());
                                 }
-
                                 /*if track_root.is_some() {
                                     let prev_root = track_root.unwrap().0;
                                     // if we already had a track root, and it is different from the current entity , change the previous track root's list of children
@@ -457,27 +461,21 @@ pub(crate) fn blueprints_scenes_spawned(
                                         tracker.1.sub_blueprint_instances.remove(&child);
                                     }
                                 }*/
-
                             }
                             break;
                         }
                     }
-
-
-            
                 }
             }
         }
 
-
-
         println!("sub blueprint instances {:?}", sub_blueprint_instance_names);
 
-        // TODO: how about when no sub blueprints are present
         if tracker_data.keys().len() > 0 {
-            commands.entity(entity)
-                .insert(SubBlueprintsSpawnTracker{sub_blueprint_instances: tracker_data.clone()});
-        }else {
+            commands.entity(entity).insert(SubBlueprintsSpawnTracker {
+                sub_blueprint_instances: tracker_data.clone(),
+            });
+        } else {
             commands.entity(entity).insert(BlueprintChildrenReady);
         }
     }
@@ -485,34 +483,43 @@ pub(crate) fn blueprints_scenes_spawned(
 
 // could be done differently, by notifying each parent of a spawning blueprint that this child is done spawning ?
 // perhaps using component hooks or observers (ie , if a ComponentSpawning + Parent)
-
-use crate:: CopyComponents;
+use crate::CopyComponents;
 use std::any::TypeId;
 
+#[derive(Component, Reflect, Debug)]
+#[reflect(Component)]
+pub struct BlueprintReadyForPostProcess;
 
 /// this system is in charge of doing component transfers & co
 /// - it removes one level of useless nesting
 /// - it copies the blueprint's root components to the entity it was spawned on (original entity)
 /// - it copies the children of the blueprint scene into the original entity
-/// - it add `AnimationLink` components so that animations can be controlled from the original entity
-pub(crate) fn blueprints_transfer_components(
-    foo: Query<(
-        Entity, 
-        &Children,
-        &OriginalChildren,
-        Option<&Name>, 
-        Option<&SpawnTrackRoot>), 
-        Added<BlueprintChildrenReady>
+/// - it adds an `AnimationLink` component containing the entity that has the AnimationPlayer so that animations can be controlled from the original entity
+pub(crate) fn blueprints_cleanup_spawned_scene(
+    foo: Query<
+        (
+            Entity,
+            &Children,
+            &OriginalChildren,
+            Option<&Name>,
+            Option<&SubBlueprintSpawnRoot>,
+            &BlueprintAnimations,
+            Option<&NoInBlueprint>,
+        ),
+        Added<BlueprintChildrenReady>,
     >,
-    mut sub_blueprint_trackers: Query<(Entity, &mut SubBlueprintsSpawnTracker, &BlueprintInfo)>,
+    added_animation_players: Query<(Entity, &Parent), Added<AnimationPlayer>>,
+
+    mut sub_blueprint_trackers: Query<&mut SubBlueprintsSpawnTracker, With<BlueprintInfo>>,
     all_children: Query<&Children>,
 
     mut commands: Commands,
 
-    all_names: Query<&Name>
+    all_names: Query<&Name>,
 ) {
-
-    for (original, children, original_children, name, track_root) in foo.iter() {
+    for (original, children, original_children, name, track_root, animations, no_inblueprint) in
+        foo.iter()
+    {
         info!("YOOO ready !! removing empty nodes {:?}", name);
 
         if children.len() == 0 {
@@ -521,8 +528,8 @@ pub(crate) fn blueprints_transfer_components(
         }
         // the root node is the first & normally only child inside a scene, it is the one that has all relevant components
         let mut blueprint_root_entity = Entity::PLACEHOLDER; //FIXME: and what about childless ones ?? => should not be possible normally
-                                                   // let diff = HashSet::from_iter(original_children.0).difference(HashSet::from_iter(children));
-                                                   // we find the first child that was not in the entity before (aka added during the scene spawning)
+                                                             // let diff = HashSet::from_iter(original_children.0).difference(HashSet::from_iter(children));
+                                                             // we find the first child that was not in the entity before (aka added during the scene spawning)
         for child in children.iter() {
             if !original_children.0.contains(child) {
                 blueprint_root_entity = *child;
@@ -530,6 +537,14 @@ pub(crate) fn blueprints_transfer_components(
             }
         }
 
+        // we flag all children of the blueprint instance with 'InBlueprint'
+        // can be usefull to filter out anything that came from blueprints vs normal children
+        if no_inblueprint.is_none() {
+            for child in all_children.iter_descendants(blueprint_root_entity) {
+                commands.entity(child).insert(InBlueprint); // we do this here in order to avoid doing it to normal children
+            }
+        }
+
         // copy components into from blueprint instance's blueprint_root_entity to original entity
         commands.add(CopyComponents {
             source: blueprint_root_entity,
@@ -546,13 +561,30 @@ pub(crate) fn blueprints_transfer_components(
             }
         }
 
-        commands.entity(original)
-            .insert(BlueprintReadyForPostProcess); // Tag the entity so any systems dealing with post processing can know it is now their "turn" 
-        // commands.entity(original).remove::<Handle<Scene>>(); // FIXME: if we delete the handle to the scene, things get despawned ! not what we want
-        //commands.entity(original).remove::<BlueprintAssetsLoadState>(); // also clear the sub assets tracker to free up handles, perhaps just freeing up the handles and leave the rest would be better ?
-        //commands.entity(original).remove::<BlueprintAssetsLoaded>();
-        commands.entity(blueprint_root_entity).despawn_recursive(); // Remove the root entity that comes from the spawned-in scene
+        if animations.named_animations.keys().len() > 0 {
+            for (added, parent) in added_animation_players.iter() {
+                if parent.get() == blueprint_root_entity {
+                    // FIXME: stopgap solution: since we cannot use an AnimationPlayer at the root entity level
+                    // and we cannot update animation clips so that the EntityPaths point to one level deeper,
+                    // BUT we still want to have some marker/control at the root entity level, we add this
+                    commands
+                        .entity(original)
+                        .insert((BlueprintAnimationPlayerLink(added),));
 
+                    // since v0.14 you need both AnimationTransitions and AnimationGraph components/handle on the same entity as the animationPlayer
+                    let transitions = AnimationTransitions::new();
+                    commands
+                        .entity(added)
+                        .insert((transitions, animations.graph.clone()));
+                }
+            }
+        }
+
+        commands
+            .entity(original)
+            .insert(BlueprintReadyForPostProcess); // Tag the entity so any systems dealing with post processing can know it is now their "turn"
+
+        commands.entity(blueprint_root_entity).despawn_recursive(); // Remove the root entity that comes from the spawned-in scene
 
         // now check if the current entity is a child blueprint instance of another entity
         // this should always be done last, as children should be finished before the parent can be processed correctly
@@ -560,8 +592,11 @@ pub(crate) fn blueprints_transfer_components(
         if let Some(track_root) = track_root {
             let root_name = all_names.get(track_root.0);
             println!("got some root {:?}", root_name);
-            if let Ok((s_entity, mut tracker, bp_info)) = sub_blueprint_trackers.get_mut(track_root.0) {
-                tracker.sub_blueprint_instances.entry(original).or_insert(true);
+            if let Ok(mut tracker) = sub_blueprint_trackers.get_mut(track_root.0) {
+                tracker
+                    .sub_blueprint_instances
+                    .entry(original)
+                    .or_insert(true);
                 tracker.sub_blueprint_instances.insert(original, true);
 
                 // TODO: ugh, my limited rust knowledge, this is bad code
@@ -581,97 +616,43 @@ pub(crate) fn blueprints_transfer_components(
     }
 }
 
-
-
 #[derive(Component, Reflect, Debug)]
 #[reflect(Component)]
 pub struct BlueprintReadyForFinalizing;
 
 pub(crate) fn blueprints_finalize_instances(
-    blueprint_instances: Query<(Entity, Option<&Name>, &BlueprintInfo, Option<&HideUntilReady>), (With<BlueprintSpawning>, With<BlueprintReadyForFinalizing>)>,
+    blueprint_instances: Query<
+        (
+            Entity,
+            Option<&Name>,
+            &BlueprintInfo,
+            Option<&HideUntilReady>,
+        ),
+        (With<BlueprintSpawning>, With<BlueprintReadyForFinalizing>),
+    >,
     mut blueprint_events: EventWriter<BlueprintEvent>,
     mut commands: Commands,
 ) {
     for (entity, name, blueprint_info, hide_until_ready) in blueprint_instances.iter() {
         info!("Finalizing blueprint instance {:?}", name);
-        commands.entity(entity)
-            .remove::<SpawnHere>()
+        commands
+            .entity(entity)
+            .remove::<SpawnBlueprint>()
             .remove::<BlueprintSpawning>()
             .remove::<BlueprintReadyForPostProcess>()
-            .insert(BlueprintInstanceReady)
-            ;
+            //.remove::<Handle<Scene>>(); // FIXME: if we delete the handle to the scene, things get despawned ! not what we want
+            //.remove::<BlueprintAssetsLoadState>(); // also clear the sub assets tracker to free up handles, perhaps just freeing up the handles and leave the rest would be better ?
+            //.remove::<BlueprintAssetsLoaded>();
+            .insert(BlueprintInstanceReady);
+
         if hide_until_ready.is_some() {
-            println!("REVEAAAL");
             commands.entity(entity).insert(Visibility::Visible);
         }
 
-
-        blueprint_events.send(BlueprintEvent::InstanceReady {entity: entity, blueprint_name: blueprint_info.name.clone(), blueprint_path: blueprint_info.path.clone()});
-    }
-}
-/*
-=> annoying issue with the "nested" useless root node created by blender
-            => distinguish between blueprint instances inside blueprint instances vs blueprint instances inside blueprints ??
-
-BlueprintSpawning
-    - Blueprint Load Assets
-    - Blueprint Assets Ready: spawn Blueprint's scene
-    - Blueprint Scene Ready (SceneInstance component is present):
-        - get list of sub Blueprints if any, inject sub blueprints spawn tracker
-    - Blueprint copy components to original entity, remove useless nodes
-    - Blueprint post process
-        - generate aabb (need full hierarchy in its final form)
-        - inject materials from library if needed
-    - Blueprint Ready 
-        - bubble information up to parent blueprint instance
-        - if all sub_blueprints are ready => Parent blueprint Instance is ready 
-*/
-
-
-// HOT RELOAD
-
-
-use bevy::asset::AssetEvent;
-
-pub(crate) fn react_to_asset_changes(
-    mut gltf_events: EventReader<AssetEvent<Gltf>>,
-    mut untyped_events: EventReader<AssetEvent<LoadedUntypedAsset>>,
-    mut blueprint_assets: Query<(Entity, Option<&Name>, &BlueprintInfo, &mut BlueprintAssetsLoadState, Option<&Children>)>,
-    asset_server: Res<AssetServer>,
-    mut commands: Commands,
-
-) {
-
-    for event in gltf_events.read() {
-        // LoadedUntypedAsset
-        match event {
-            AssetEvent::Modified { id } => {
-                // React to the image being modified
-                // println!("Modified gltf {:?}", asset_server.get_path(*id));
-                for (entity, entity_name, blueprint_info, mut assets_to_load, children) in blueprint_assets.iter_mut() {
-                    for tracker in assets_to_load.asset_infos.iter_mut() {
-                        if asset_server.get_path(*id).is_some() {
-                            if tracker.path == asset_server.get_path(*id).unwrap().to_string() {
-                                println!("HOLY MOLY IT DETECTS !!, now respawn {:?}", entity_name);
-                                if children.is_some() {
-                                    for child in children.unwrap().iter(){
-                                        commands.entity(*child).despawn_recursive();
-                                    }
-                                }
-                                commands.entity(entity)
-                                    .remove::<BlueprintAssetsLoaded>()
-                                    .remove::<SceneInstance>()
-                                    .remove::<BlueprintAssetsLoadState>()
-                                    .insert(SpawnHere);
-
-                                break;
-                            }
-                        }
-                    }
-                }
-
-            }
-            _ => {}
-        }
+        blueprint_events.send(BlueprintEvent::InstanceReady {
+            entity,
+            blueprint_name: blueprint_info.name.clone(),
+            blueprint_path: blueprint_info.path.clone(),
+        });
     }
 }

crates/blenvy/src/components/blender_settings/lighting.rs

@@ -11,10 +11,15 @@ pub(crate) fn plugin(app: &mut App) {
         .register_type::<BlenderLightShadows>()
         .register_type::<BlenderToneMapping>()
         .register_type::<BlenderColorGrading>()
-
         .add_systems(
             Update,
-            (process_lights, process_shadowmap, process_background_shader, process_tonemapping, process_colorgrading)
+            (
+                process_lights,
+                process_shadowmap,
+                process_background_shader,
+                process_tonemapping,
+                process_colorgrading,
+            )
                 .after(GltfComponentsSet::Injection),
         );
 }
@@ -45,26 +50,25 @@ pub struct BlenderShadowSettings {
     pub cascade_size: usize,
 }
 
-/// Not all possible Blender ToneMappings are available in Bevy & vice versa 
+/// Not all possible Blender `ToneMappings` are available in Bevy & vice versa
 #[derive(Component, Reflect, Default, Debug, PartialEq, Clone)]
 #[reflect(Component)]
 #[non_exhaustive]
-pub enum BlenderToneMapping  {
+pub enum BlenderToneMapping {
     #[default]
     None,
     AgX,
-    Filmic
+    Filmic,
 }
 
 #[derive(Component, Reflect, Default, Debug, PartialEq, Clone)]
 #[reflect(Component)]
 #[non_exhaustive]
-pub struct  BlenderColorGrading  {
+pub struct BlenderColorGrading {
     exposure: f32,
     gamma: f32,
 }
 
-
 fn process_lights(
     mut directional_lights: Query<
         (&mut DirectionalLight, Option<&BlenderLightShadows>),
@@ -113,19 +117,17 @@ fn process_background_shader(
             brightness: background_shader.strength * 400.0,
         });
         commands.insert_resource(ClearColor(background_shader.color));
-
     }
 }
 
 // FIXME: this logic should not depend on if toneMapping or Cameras where added first
 fn process_tonemapping(
-    tonemappings: Query<(Entity, &BlenderToneMapping) , Added<BlenderToneMapping>>,
+    tonemappings: Query<(Entity, &BlenderToneMapping), Added<BlenderToneMapping>>,
     cameras: Query<Entity, With<Camera>>,
     mut commands: Commands,
-){
-
-    for entity in cameras.iter(){
-        for (scene_id, tone_mapping) in tonemappings.iter(){
+) {
+    for entity in cameras.iter() {
+        for (scene_id, tone_mapping) in tonemappings.iter() {
             match tone_mapping {
                 BlenderToneMapping::None => {
                     //println!("TONEMAPPING NONE");
@@ -143,42 +145,37 @@ fn process_tonemapping(
             commands.entity(scene_id).remove::<BlenderToneMapping>();
         }
     }
-
 }
 
 // FIXME: this logic should not depend on if toneMapping or Cameras where added first
 fn process_colorgrading(
-    blender_colorgradings: Query<(Entity, &BlenderColorGrading) , Added<BlenderColorGrading>>,
+    blender_colorgradings: Query<(Entity, &BlenderColorGrading), Added<BlenderColorGrading>>,
     cameras: Query<Entity, With<Camera>>,
     mut commands: Commands,
-){
-
-    for entity in cameras.iter(){
-        for (scene_id, blender_colorgrading) in blender_colorgradings.iter(){
-            commands.entity(entity).insert(
-                ColorGrading{
-                    global: ColorGradingGlobal{
-                        exposure: blender_colorgrading.exposure,
-                        ..Default::default()
-                    },
-                    shadows: ColorGradingSection{
-                        gamma: blender_colorgrading.gamma,
-                        ..Default::default()
-                    },
-                    midtones: ColorGradingSection{
-                        gamma: blender_colorgrading.gamma,
-                        ..Default::default()
-                    },
-                    highlights: ColorGradingSection{
-                        gamma: blender_colorgrading.gamma,
-                        ..Default::default()
-                    },
-                        
+) {
+    for entity in cameras.iter() {
+        for (scene_id, blender_colorgrading) in blender_colorgradings.iter() {
+            commands.entity(entity).insert(ColorGrading {
+                global: ColorGradingGlobal {
+                    exposure: blender_colorgrading.exposure,
                     ..Default::default()
-                }
-            );
-            commands.entity(scene_id).remove::<ColorGrading>();
+                },
+                shadows: ColorGradingSection {
+                    gamma: blender_colorgrading.gamma,
+                    ..Default::default()
+                },
+                midtones: ColorGradingSection {
+                    gamma: blender_colorgrading.gamma,
+                    ..Default::default()
+                },
+                highlights: ColorGradingSection {
+                    gamma: blender_colorgrading.gamma,
+                    ..Default::default()
+                },
 
+                ..Default::default()
+            });
+            commands.entity(scene_id).remove::<ColorGrading>();
         }
     }
 }

crates/blenvy/src/components/mod.rs

@@ -10,7 +10,7 @@ pub use process_gltfs::*;
 pub mod blender_settings;
 
 use bevy::{
-    ecs::{component::Component, reflect::ReflectComponent, system::Resource},
+    ecs::{component::Component, reflect::ReflectComponent},
     prelude::{App, IntoSystemConfigs, Plugin, SystemSet, Update},
     reflect::Reflect,
 };

crates/blenvy/src/components/process_gltfs.rs

@@ -16,36 +16,40 @@ use bevy::{
 use crate::{ronstring_to_reflect_component, GltfProcessed};
 
 // , mut entity_components: HashMap<Entity, Vec<(Box<dyn Reflect>, TypeRegistration)>>
-fn find_entity_components(entity: Entity, name: &Name, parent: Option<&Parent>, reflect_components: Vec<(Box<dyn Reflect>, TypeRegistration)>, entity_components: &HashMap<Entity, Vec<(Box<dyn Reflect>, TypeRegistration)>>) -> (Entity, Vec<(Box<dyn Reflect>, TypeRegistration)>){
-     // we assign the components specified /xxx_components objects to their parent node
-     let mut target_entity = entity;
-     // if the node contains "components" or ends with "_pa" (ie add to parent), the components will not be added to the entity itself but to its parent
-     // this is mostly used for Blender collections
-     if parent.is_some() && (name.as_str().contains("components") || name.as_str().ends_with("_pa")) {
-         debug!("adding components to parent");
-         target_entity = parent.expect("the target entity had a parent ").get();
-     }
-     debug!("adding to {:?}", target_entity);
+fn find_entity_components(
+    entity: Entity,
+    name: &Name,
+    parent: Option<&Parent>,
+    reflect_components: Vec<(Box<dyn Reflect>, TypeRegistration)>,
+    entity_components: &HashMap<Entity, Vec<(Box<dyn Reflect>, TypeRegistration)>>,
+) -> (Entity, Vec<(Box<dyn Reflect>, TypeRegistration)>) {
+    // we assign the components specified /xxx_components objects to their parent node
+    let mut target_entity = entity;
+    // if the node contains "components" or ends with "_pa" (ie add to parent), the components will not be added to the entity itself but to its parent
+    // this is mostly used for Blender collections
+    if parent.is_some() && (name.as_str().contains("components") || name.as_str().ends_with("_pa"))
+    {
+        debug!("adding components to parent");
+        target_entity = parent.expect("the target entity had a parent ").get();
+    }
+    debug!("adding to {:?}", target_entity);
 
-     // if there where already components set to be added to this entity (for example when entity_data was refering to a parent), update the vec of entity_components accordingly
-     // this allows for example blender collection to provide basic ecs data & the instances to override/ define their own values
-     if entity_components.contains_key(&target_entity) {
-         let mut updated_components: Vec<(Box<dyn Reflect>, TypeRegistration)> = Vec::new();
-         let current_components = &entity_components[&target_entity];
-         // first inject the current components
-         for (component, type_registration) in current_components {
-             updated_components.push((component.clone_value(), type_registration.clone()));
-         }
-         // then inject the new components: this also enables overwrite components set in the collection
-         for (component, type_registration) in reflect_components {
-             updated_components.push((component.clone_value(), type_registration));
-         }
-         return (target_entity, updated_components)
-         //entity_components.insert(target_entity, updated_components);
-     } else {
-        return  (target_entity, reflect_components);
-         // entity_components.insert(target_entity, reflect_components);
-     }
+    // if there where already components set to be added to this entity (for example when entity_data was refering to a parent), update the vec of entity_components accordingly
+    // this allows for example blender collection to provide basic ecs data & the instances to override/ define their own values
+    if entity_components.contains_key(&target_entity) {
+        let mut updated_components: Vec<(Box<dyn Reflect>, TypeRegistration)> = Vec::new();
+        let current_components = &entity_components[&target_entity];
+        // first inject the current components
+        for (component, type_registration) in current_components {
+            updated_components.push((component.clone_value(), type_registration.clone()));
+        }
+        // then inject the new components: this also enables overwrite components set in the collection
+        for (component, type_registration) in reflect_components {
+            updated_components.push((component.clone_value(), type_registration));
+        }
+        return (target_entity, updated_components);
+    }
+    (target_entity, reflect_components)
 }
 
 /// main function: injects components into each entity in gltf files that have `gltf_extras`, using reflection
@@ -70,11 +74,11 @@ pub fn add_components_from_gltf_extras(world: &mut World) {
         let type_registry = type_registry.read();
         let reflect_components = ronstring_to_reflect_component(&extra.value, &type_registry);
 
-        let (target_entity, updated_components) = find_entity_components(entity, name, parent, reflect_components, &entity_components);
+        let (target_entity, updated_components) =
+            find_entity_components(entity, name, parent, reflect_components, &entity_components);
         entity_components.insert(target_entity, updated_components);
     }
 
-
     for (entity, name, extra, parent) in scene_extras.iter(world) {
         debug!(
             "Name: {}, entity {:?}, parent: {:?}, scene_extras {:?}",
@@ -85,7 +89,8 @@ pub fn add_components_from_gltf_extras(world: &mut World) {
         let type_registry = type_registry.read();
         let reflect_components = ronstring_to_reflect_component(&extra.value, &type_registry);
 
-        let (target_entity, updated_components) = find_entity_components(entity, name, parent, reflect_components, &entity_components);
+        let (target_entity, updated_components) =
+            find_entity_components(entity, name, parent, reflect_components, &entity_components);
         entity_components.insert(target_entity, updated_components);
     }
 
@@ -99,7 +104,8 @@ pub fn add_components_from_gltf_extras(world: &mut World) {
         let type_registry = type_registry.read();
         let reflect_components = ronstring_to_reflect_component(&extra.value, &type_registry);
 
-        let (target_entity, updated_components) = find_entity_components(entity, name, parent, reflect_components, &entity_components);
+        let (target_entity, updated_components) =
+            find_entity_components(entity, name, parent, reflect_components, &entity_components);
         entity_components.insert(target_entity, updated_components);
     }
 
@@ -113,11 +119,11 @@ pub fn add_components_from_gltf_extras(world: &mut World) {
         let type_registry = type_registry.read();
         let reflect_components = ronstring_to_reflect_component(&extra.value, &type_registry);
 
-        let (target_entity, updated_components) = find_entity_components(entity, name, parent, reflect_components, &entity_components);
+        let (target_entity, updated_components) =
+            find_entity_components(entity, name, parent, reflect_components, &entity_components);
         entity_components.insert(target_entity, updated_components);
     }
 
-
     for (entity, components) in entity_components {
         let type_registry: &AppTypeRegistry = world.resource();
         let type_registry = type_registry.clone();

crates/blenvy/src/components/ronstring_to_reflect_component.rs

@@ -1,5 +1,5 @@
 use bevy::log::{debug, warn};
-use bevy::reflect::serde::{ReflectDeserializer, ReflectSerializer};
+use bevy::reflect::serde::ReflectDeserializer;
 use bevy::reflect::{Reflect, TypeRegistration, TypeRegistry};
 use bevy::utils::HashMap;
 use ron::Value;
@@ -16,9 +16,7 @@ pub fn ronstring_to_reflect_component(
     // println!("ron_string {:?}", ron_string);
     for (name, value) in lookup.into_iter() {
         let parsed_value: String = match value.clone() {
-            Value::String(str) => {
-                str
-            }
+            Value::String(str) => str,
             _ => ron::to_string(&value).unwrap().to_string(),
         };
 
@@ -68,7 +66,6 @@ fn components_string_to_components(
         println!("serialized Component {}", serialized);
         */
 
-
         debug!("component data ron string {}", ron_string);
         let mut deserializer = ron::Deserializer::from_str(ron_string.as_str())
             .expect("deserialzer should have been generated from string");
@@ -99,9 +96,7 @@ fn bevy_components_string_to_components(
     let lookup: HashMap<String, Value> = ron::from_str(&parsed_value).unwrap();
     for (key, value) in lookup.into_iter() {
         let parsed_value: String = match value.clone() {
-            Value::String(str) => {
-                str
-            }
+            Value::String(str) => str,
             _ => ron::to_string(&value).unwrap().to_string(),
         };
 

crates/blenvy/src/lib.rs

@@ -1,5 +1,5 @@
-use std::path::PathBuf;
 use bevy::{prelude::*, render::primitives::Aabb, utils::HashMap};
+use std::path::PathBuf;
 
 pub mod components;
 pub use components::*;
@@ -24,7 +24,6 @@ pub struct BlenvyConfig {
     pub(crate) materials_cache: HashMap<String, Handle<StandardMaterial>>, // cache for materials
 }
 
-
 #[derive(Debug, Clone)]
 /// Plugin for gltf blueprints
 pub struct BlenvyPlugin {
@@ -53,7 +52,7 @@ impl Plugin for BlenvyPlugin {
         app.add_plugins((
             ComponentsFromGltfPlugin::default(),
             ExportRegistryPlugin::default(),
-            BlueprintsPlugin::default()
+            BlueprintsPlugin::default(),
         ))
         .insert_resource(BlenvyConfig {
             registry_save_path: self.registry_save_path.clone(),
@@ -64,8 +63,6 @@ impl Plugin for BlenvyPlugin {
             aabb_cache: HashMap::new(),
 
             materials_cache: HashMap::new(),
-        })
-        ;
-
+        });
     }
 }

crates/blenvy/src/registry/export_types.rs

@@ -1,7 +1,11 @@
-use std::{fs::File, path::Path};
-use bevy::{log::info, prelude::{AppTypeRegistry, ReflectComponent, ReflectResource, World}, reflect::{TypeInfo, TypeRegistration, VariantInfo}};
-use serde_json::{json, Map, Value};
 use crate::{AssetRoot, BlenvyConfig};
+use bevy::{
+    log::info,
+    prelude::{AppTypeRegistry, ReflectComponent, ReflectResource, World},
+    reflect::{TypeInfo, TypeRegistration, VariantInfo},
+};
+use serde_json::{json, Map, Value};
+use std::{fs::File, path::Path};
 
 pub fn export_types(world: &mut World) {
     let config = world
@@ -37,7 +41,7 @@ pub fn export_types(world: &mut World) {
     )
     .expect("valid json");
 
-    info!("Done exporting registry schema")
+    info!("Done exporting registry schema");
 }
 
 pub fn export_type(reg: &TypeRegistration) -> (String, Value) {

crates/blenvy/src/registry/mod.rs

@@ -4,7 +4,10 @@ pub mod export_types;
 pub use export_types::*;
 
 use bevy::{
-    app::Startup, asset::AssetPlugin, prelude::{App, Plugin, Resource}, scene::SceneFilter
+    app::Startup,
+    asset::AssetPlugin,
+    prelude::{App, Plugin, Resource},
+    scene::SceneFilter,
 };
 
 pub struct ExportRegistryPlugin {
@@ -25,8 +28,7 @@ impl Default for ExportRegistryPlugin {
 
 impl Plugin for ExportRegistryPlugin {
     fn build(&self, app: &mut App) {
-        app.register_asset_root()
-            .add_systems(Startup, export_types);
+        app.register_asset_root().add_systems(Startup, export_types);
     }
 }
 

testing/bevy_example/assets/registry.json

@@ -250,16 +250,16 @@
       "type": "array",
       "typeInfo": "List"
     },
-    "alloc::vec::Vec<blenvy::blueprints::assets::MyAsset>": {
+    "alloc::vec::Vec<blenvy::blueprints::assets::BlueprintAsset>": {
       "isComponent": false,
       "isResource": false,
       "items": {
         "type": {
-          "$ref": "#/$defs/blenvy::blueprints::assets::MyAsset"
+          "$ref": "#/$defs/blenvy::blueprints::assets::BlueprintAsset"
         }
       },
-      "long_name": "alloc::vec::Vec<blenvy::blueprints::assets::MyAsset>",
-      "short_name": "Vec<MyAsset>",
+      "long_name": "alloc::vec::Vec<blenvy::blueprints::assets::BlueprintAsset>",
+      "short_name": "Vec<BlueprintAsset>",
       "type": "array",
       "typeInfo": "List"
     },
@@ -12003,6 +12003,24 @@
         }
       }
     },
+    "bevy_utils::hashbrown::HashMap<alloc::string::String, petgraph::graph::NodeIndex, bevy_utils::hashbrown::hash_map::DefaultHashBuilder>": {
+      "isComponent": false,
+      "isResource": false,
+      "keyType": {
+        "type": {
+          "$ref": "#/$defs/alloc::string::String"
+        }
+      },
+      "long_name": "bevy_utils::hashbrown::HashMap<alloc::string::String, petgraph::graph::NodeIndex, bevy_utils::hashbrown::hash_map::DefaultHashBuilder>",
+      "short_name": "HashMap<String, NodeIndex, DefaultHashBuilder>",
+      "type": "object",
+      "typeInfo": "Map",
+      "valueType": {
+        "type": {
+          "$ref": "#/$defs/petgraph::graph::NodeIndex"
+        }
+      }
+    },
     "bevy_utils::hashbrown::HashMap<bevy_animation::AnimationTargetId, alloc::vec::Vec<bevy_animation::VariableCurve>, bevy_utils::NoOpHash>": {
       "isComponent": false,
       "isResource": false,
@@ -13286,14 +13304,26 @@
       "isResource": false,
       "long_name": "blenvy::blueprints::animation::BlueprintAnimations",
       "properties": {
+        "graph": {
+          "type": {
+            "$ref": "#/$defs/bevy_asset::handle::Handle<bevy_animation::graph::AnimationGraph>"
+          }
+        },
         "named_animations": {
           "type": {
             "$ref": "#/$defs/bevy_utils::hashbrown::HashMap<alloc::string::String, bevy_asset::handle::Handle<bevy_animation::AnimationClip>, bevy_utils::hashbrown::hash_map::DefaultHashBuilder>"
           }
+        },
+        "named_indices": {
+          "type": {
+            "$ref": "#/$defs/bevy_utils::hashbrown::HashMap<alloc::string::String, petgraph::graph::NodeIndex, bevy_utils::hashbrown::hash_map::DefaultHashBuilder>"
+          }
         }
       },
       "required": [
-        "named_animations"
+        "named_animations",
+        "named_indices",
+        "graph"
       ],
       "short_name": "BlueprintAnimations",
       "type": "object",
@@ -13309,15 +13339,46 @@
           "type": {
             "$ref": "#/$defs/bevy_utils::hashbrown::HashMap<alloc::string::String, bevy_asset::handle::Handle<bevy_animation::AnimationClip>, bevy_utils::hashbrown::hash_map::DefaultHashBuilder>"
           }
+        },
+        "named_indices": {
+          "type": {
+            "$ref": "#/$defs/bevy_utils::hashbrown::HashMap<alloc::string::String, petgraph::graph::NodeIndex, bevy_utils::hashbrown::hash_map::DefaultHashBuilder>"
+          }
         }
       },
       "required": [
-        "named_animations"
+        "named_animations",
+        "named_indices"
       ],
       "short_name": "SceneAnimations",
       "type": "object",
       "typeInfo": "Struct"
     },
+    "blenvy::blueprints::assets::BlueprintAsset": {
+      "additionalProperties": false,
+      "isComponent": true,
+      "isResource": false,
+      "long_name": "blenvy::blueprints::assets::BlueprintAsset",
+      "properties": {
+        "name": {
+          "type": {
+            "$ref": "#/$defs/alloc::string::String"
+          }
+        },
+        "path": {
+          "type": {
+            "$ref": "#/$defs/alloc::string::String"
+          }
+        }
+      },
+      "required": [
+        "name",
+        "path"
+      ],
+      "short_name": "BlueprintAsset",
+      "type": "object",
+      "typeInfo": "Struct"
+    },
     "blenvy::blueprints::assets::BlueprintAssets": {
       "additionalProperties": false,
       "isComponent": true,
@@ -13326,7 +13387,7 @@
       "properties": {
         "assets": {
           "type": {
-            "$ref": "#/$defs/alloc::vec::Vec<blenvy::blueprints::assets::MyAsset>"
+            "$ref": "#/$defs/alloc::vec::Vec<blenvy::blueprints::assets::BlueprintAsset>"
           }
         },
         "loaded": {
@@ -13349,31 +13410,6 @@
       "type": "object",
       "typeInfo": "Struct"
     },
-    "blenvy::blueprints::assets::MyAsset": {
-      "additionalProperties": false,
-      "isComponent": true,
-      "isResource": false,
-      "long_name": "blenvy::blueprints::assets::MyAsset",
-      "properties": {
-        "name": {
-          "type": {
-            "$ref": "#/$defs/alloc::string::String"
-          }
-        },
-        "path": {
-          "type": {
-            "$ref": "#/$defs/alloc::string::String"
-          }
-        }
-      },
-      "required": [
-        "name",
-        "path"
-      ],
-      "short_name": "MyAsset",
-      "type": "object",
-      "typeInfo": "Struct"
-    },
     "blenvy::blueprints::materials::MaterialInfo": {
       "additionalProperties": false,
       "isComponent": true,
@@ -13424,14 +13460,25 @@
       "type": "object",
       "typeInfo": "Struct"
     },
-    "blenvy::blueprints::spawn_from_blueprints::SpawnHere": {
+    "blenvy::blueprints::spawn_from_blueprints::HideUntilReady": {
       "additionalProperties": false,
       "isComponent": true,
       "isResource": false,
-      "long_name": "blenvy::blueprints::spawn_from_blueprints::SpawnHere",
+      "long_name": "blenvy::blueprints::spawn_from_blueprints::HideUntilReady",
       "properties": {},
       "required": [],
-      "short_name": "SpawnHere",
+      "short_name": "HideUntilReady",
+      "type": "object",
+      "typeInfo": "Struct"
+    },
+    "blenvy::blueprints::spawn_from_blueprints::SpawnBlueprint": {
+      "additionalProperties": false,
+      "isComponent": true,
+      "isResource": false,
+      "long_name": "blenvy::blueprints::spawn_from_blueprints::SpawnBlueprint",
+      "properties": {},
+      "required": [],
+      "short_name": "SpawnBlueprint",
       "type": "object",
       "typeInfo": "Struct"
     },

testing/bevy_example/src/core/mod.rs

@@ -21,22 +21,20 @@ impl Plugin for CorePlugin {
                     // and any other commponent you want to include/exclude
                 ])),
                 ..Default::default()
-            }
-            
-            /* ExportRegistryPlugin {
-                component_filter: SceneFilter::Denylist(HashSet::from([
-                    // this is using Bevy's build in SceneFilter, you can compose what components you want to allow/deny
-                    TypeId::of::<ComponentAToFilterOut>(),
-                    TypeId::of::<ComponentBToFilterOut>(),
-                    // and any other commponent you want to include/exclude
-                ])),
-                ..Default::default()
-            },
-            BlueprintsPlugin {
-                material_library: true,
-                aabbs: true,
-                ..Default::default()
-            }, */
+            }, /* ExportRegistryPlugin {
+                   component_filter: SceneFilter::Denylist(HashSet::from([
+                       // this is using Bevy's build in SceneFilter, you can compose what components you want to allow/deny
+                       TypeId::of::<ComponentAToFilterOut>(),
+                       TypeId::of::<ComponentBToFilterOut>(),
+                       // and any other commponent you want to include/exclude
+                   ])),
+                   ..Default::default()
+               },
+               BlueprintsPlugin {
+                   material_library: true,
+                   aabbs: true,
+                   ..Default::default()
+               }, */
         );
     }
 }

testing/bevy_example/src/game/animation.rs

@@ -5,7 +5,7 @@ use std::time::Duration;
     SceneAnimationPlayerLink, SceneAnimations,
 };*/
 
-use bevy::{gltf::Gltf, prelude::*};
+use bevy::{animation::RepeatAnimation, gltf::Gltf, prelude::*};
 
 use blenvy::{
     AnimationInfos, AnimationMarkerReached, BlueprintAnimationPlayerLink, BlueprintAnimations,
@@ -79,11 +79,13 @@ pub fn animations(
             }
         }
     }
-}
+}*/
 
 #[allow(clippy::type_complexity)]
 pub fn play_animations(
-    animated_marker1: Query<
+    animated_fox: Query<(&BlueprintAnimationPlayerLink, &BlueprintAnimations), With<MarkerFox>>,
+
+    /*animated_marker1: Query<
         (&SceneAnimationPlayerLink, &SceneAnimations),
         (With<AnimationInfos>, With<Marker1>),
     >,
@@ -99,32 +101,42 @@ pub fn play_animations(
             &BlueprintAnimations,
         ),
         (With<AnimationInfos>, With<Marker3>),
-    >,
-
-    animated_fox: Query<(&BlueprintAnimationPlayerLink, &BlueprintAnimations), With<MarkerFox>>,
-
-    mut animation_players: Query<&mut AnimationPlayer>,
+    >, */
+    mut animation_players: Query<(&mut AnimationPlayer, &mut AnimationTransitions)>,
     keycode: Res<ButtonInput<KeyCode>>,
 ) {
     if keycode.just_pressed(KeyCode::KeyP) {
+        println!("playing fox animation requested");
         for (link, animations) in animated_fox.iter() {
             println!("animations {:?}", animations.named_animations);
-            let mut animation_player = animation_players.get_mut(link.0).unwrap();
-            let anim_name = "Run";
-            animation_player
-                .play_with_transition(
-                    animations
-                        .named_animations
-                        .get(anim_name)
-                        .expect("animation name should be in the list")
-                        .clone(),
+            println!("LINK target {}", link.0);
+            let (mut animation_player, mut animation_transitions) =
+                animation_players.get_mut(link.0).unwrap();
+            let anim_name = "Survey";
+            let animation_index = animations
+                .named_indices
+                .get(anim_name)
+                .expect("animation name should be in the list")
+                .clone();
+
+            animation_transitions
+                .play(
+                    &mut animation_player,
+                    animation_index,
                     Duration::from_secs(5),
                 )
                 .repeat();
+
+            /*let Some((&playing_animation_index, _)) = animation_player.playing_animations().next() else {
+                continue;
+            };
+            let playing_animation = animation_player.animation_mut(playing_animation_index).unwrap();
+            println!("Playing animation {:?}", playing_animation);
+            playing_animation.set_repeat(RepeatAnimation::Forever);*/
         }
     }
 
-    if keycode.just_pressed(KeyCode::KeyM) {
+    /*if keycode.just_pressed(KeyCode::KeyM) {
         for (link, animations) in animated_marker1.iter() {
             println!("animations {:?}", animations.named_animations);
             let mut animation_player = animation_players.get_mut(link.0).unwrap();
@@ -229,9 +241,9 @@ pub fn play_animations(
                 )
                 .repeat();
         }
-    }
+    }*/
 }
-*/
+
 pub fn react_to_animation_markers(
     mut animation_marker_events: EventReader<AnimationMarkerReached>,
 ) {

testing/bevy_example/src/game/in_game.rs

@@ -1,6 +1,9 @@
-use bevy::prelude::*;
-use blenvy::{BluePrintBundle, BlueprintInfo, DynamicBlueprintInstance, GameWorldTag, HideUntilReady, SpawnHere};
 use crate::{GameState, InAppRunning};
+use bevy::prelude::*;
+use blenvy::{
+    AddToGameWorld, BluePrintBundle, BlueprintInfo, DynamicBlueprintInstance, GameWorldTag,
+    HideUntilReady, SpawnBlueprint,
+};
 
 //use bevy_rapier3d::prelude::Velocity;
 use rand::Rng;
@@ -22,10 +25,13 @@ pub fn setup_game(
     ));*/
 
     commands.spawn((
-        BlueprintInfo{name: "World".into(), path: "levels/World.glb".into()},
+        BlueprintInfo {
+            name: "World".into(),
+            path: "levels/World.glb".into(),
+        },
         HideUntilReady,
         bevy::prelude::Name::from("world"), //FIXME: not really needed ? could be infered from blueprint's name/ path
-        SpawnHere,
+        SpawnBlueprint,
         GameWorldTag,
         InAppRunning,
     ));
@@ -43,7 +49,7 @@ pub fn spawn_test(
 
     mut game_world: Query<(Entity, &Children), With<GameWorldTag>>,
 ) {
-    if keycode.just_pressed(KeyCode::KeyT) {
+    if keycode.just_pressed(KeyCode::KeyS) {
         let world = game_world.single_mut();
         let world = world.1[0];
 
@@ -63,13 +69,16 @@ pub fn spawn_test(
         let new_entity = commands
             .spawn((
                 BluePrintBundle {
-                    blueprint: BlueprintInfo{name: "Blueprint1".into() , path:"blueprints/Blueprint1.glb".into()}, // FIXME
+                    blueprint: BlueprintInfo {
+                        name: "Blueprint1".into(),
+                        path: "blueprints/Blueprint1.glb".into(),
+                    }, // FIXME
                     ..Default::default()
                 },
                 DynamicBlueprintInstance,
                 bevy::prelude::Name::from(format!("test{}", name_index)),
                 HideUntilReady,
-                // SpawnHere,
+                AddToGameWorld,
                 TransformBundle::from_transform(Transform::from_xyz(x, 2.0, y)),
                 /*Velocity {
                     linvel: Vec3::new(vel_x, vel_y, vel_z),
@@ -77,6 +86,6 @@ pub fn spawn_test(
                 },*/
             ))
             .id();
-        commands.entity(world).add_child(new_entity);
+        //commands.entity(world).add_child(new_entity);
     }
 }

testing/bevy_example/src/game/mod.rs

@@ -7,14 +7,15 @@ pub use animation::*;
 use std::{collections::HashMap, fs, time::Duration};
 
 use blenvy::{
-    BlueprintAssets, BlueprintAnimationPlayerLink, BlueprintEvent, BlueprintInfo, GltfBlueprintsSet, SceneAnimations
+    BlueprintAnimationPlayerLink, BlueprintAssets, BlueprintEvent, BlueprintInfo,
+    GltfBlueprintsSet, SceneAnimations,
 };
 
+use crate::{AppState, GameState};
 use bevy::{
     prelude::*, render::view::screenshot::ScreenshotManager, time::common_conditions::on_timer,
     window::PrimaryWindow,
 };
-use crate::{AppState, GameState};
 
 use json_writer::to_json_string;
 
@@ -130,15 +131,32 @@ fn exit_game(mut app_exit_events: ResMut<Events<bevy::app::AppExit>>) {
 fn check_for_gltf_events(
     mut blueprint_events: EventReader<BlueprintEvent>,
     all_names: Query<&Name>,
-)
-{
+) {
     for event in blueprint_events.read() {
-        match  event {
-            BlueprintEvent::InstanceReady{entity, blueprint_name, blueprint_path} => {
-                info!("BLUEPRINT EVENT: {:?} for {:?}", event, all_names.get(*entity));
-
+        match event {
+            BlueprintEvent::InstanceReady {
+                entity,
+                blueprint_name,
+                blueprint_path,
+            } => {
+                info!(
+                    "BLUEPRINT EVENT: {:?} for {:?}",
+                    event,
+                    all_names.get(*entity)
+                );
             }
-            _=> {
+            BlueprintEvent::AssetsLoaded {
+                entity,
+                blueprint_name,
+                blueprint_path,
+            } => {
+                info!(
+                    "BLUEPRINT EVENT: {:?} for {:?}",
+                    event,
+                    all_names.get(*entity)
+                );
+            }
+            _ => {
                 info!("BLUEPRINT EVENT: {:?}", event);
             }
         }
@@ -164,9 +182,9 @@ impl Plugin for GamePlugin {
             /* .add_systems(Update, (animations)
                 .run_if(in_state(AppState::AppRunning))
                 .after(GltfBlueprintsSet::AfterSpawn)
-            )
+            )*/
             .add_systems(Update, play_animations)
-            .add_systems(Update, react_to_animation_markers)*/
+            //.add_systems(Update, react_to_animation_markers)
 
              /*.add_systems(Update, generate_screenshot.run_if(on_timer(Duration::from_secs_f32(0.2)))) // TODO: run once
             .add_systems(

testing/bevy_example/src/hierarchy_debug.rs

@@ -1,4 +1,7 @@
-use bevy::{gltf::{GltfMaterialExtras, GltfMeshExtras, GltfSceneExtras}, prelude::*};
+use bevy::{
+    gltf::{GltfMaterialExtras, GltfMeshExtras, GltfSceneExtras},
+    prelude::*,
+};
 use blenvy::{BlueprintAssets, BlueprintInstanceReady};
 
 use crate::{BasicTest, EnumComplex, RedirectPropHitImpulse};
@@ -6,13 +9,19 @@ use crate::{BasicTest, EnumComplex, RedirectPropHitImpulse};
 #[derive(Component)]
 pub struct HiearchyDebugTag;
 
-pub fn setup_hierarchy_debug(mut commands: Commands, asset_server: Res<AssetServer>){
-     // a place to display the extras on screen
-     commands.spawn((
+pub fn setup_hierarchy_debug(mut commands: Commands, asset_server: Res<AssetServer>) {
+    // a place to display the extras on screen
+    commands.spawn((
         TextBundle::from_section(
             "",
             TextStyle {
-                color: LinearRgba { red: 1.0, green:1.0, blue: 1.0, alpha: 1.0}.into(),
+                color: LinearRgba {
+                    red: 1.0,
+                    green: 1.0,
+                    blue: 1.0,
+                    alpha: 1.0,
+                }
+                .into(),
                 font_size: 15.,
                 ..default()
             },
@@ -27,38 +36,45 @@ pub fn setup_hierarchy_debug(mut commands: Commands, asset_server: Res<AssetServ
     ));
 }
 
-
 pub fn get_descendants(
     all_children: &Query<&Children>,
-    all_names:&Query<&Name>, 
+    all_names: &Query<&Name>,
     root: &Entity,
     all_transforms: &Query<&Transform>,
     all_global_transforms: &Query<&GlobalTransform>,
     nesting: usize,
-    to_check: &Query<&BasicTest>//&Query<(&BlueprintInstanceReady, &BlueprintAssets)>,
-) 
-    -> String
-{
-
+    to_check: &Query<&BasicTest>, //&Query<(&BlueprintInstanceReady, &BlueprintAssets)>,
+) -> String {
     let mut hierarchy_display: Vec<String> = vec![];
     let root_name = all_names.get(*root);
     let name;
     if root_name.is_ok() {
         name = root_name.unwrap().to_string();
-    }else {
+    } else {
         name = "no_name".to_string()
     }
 
     let components_to_check = to_check.get(*root);
 
-    hierarchy_display.push( format!("{}{} ({:?}) ({:?})", " ".repeat(nesting), name, all_transforms.get(*root), all_global_transforms.get(*root)) ); //components_to_check  ({:?})
-
+    hierarchy_display.push(format!(
+        "{}{} ({:?}) ({:?})",
+        " ".repeat(nesting),
+        name,
+        all_transforms.get(*root),
+        all_global_transforms.get(*root)
+    )); //components_to_check  ({:?})
 
     if let Ok(children) = all_children.get(*root) {
-
         for child in children.iter() {
-
-            let child_descendants_display = get_descendants(&all_children, &all_names, &child, &all_transforms, &all_global_transforms, nesting + 4, &to_check);
+            let child_descendants_display = get_descendants(
+                &all_children,
+                &all_names,
+                &child,
+                &all_transforms,
+                &all_global_transforms,
+                nesting + 4,
+                &to_check,
+            );
             hierarchy_display.push(child_descendants_display);
         }
     }
@@ -68,19 +84,27 @@ pub fn get_descendants(
 pub fn draw_hierarchy_debug(
     root: Query<(Entity, Option<&Name>, &Children), (Without<Parent>)>,
     all_children: Query<&Children>,
-    all_names:Query<&Name>,
+    all_names: Query<&Name>,
     all_transforms: Query<&Transform>,
     all_global_transforms: Query<&GlobalTransform>,
 
-    to_check: Query<&BasicTest>,//Query<(&BlueprintInstanceReady, &BlueprintAssets)>,
+    to_check: Query<&BasicTest>, //Query<(&BlueprintInstanceReady, &BlueprintAssets)>,
     mut display: Query<&mut Text, With<HiearchyDebugTag>>,
-){
+) {
     let mut hierarchy_display: Vec<String> = vec![];
 
     for (root_entity, name, children) in root.iter() {
         // hierarchy_display.push( format!("Hierarchy root{:?}", name) );
 
-        hierarchy_display.push(get_descendants(&all_children, &all_names, &root_entity, &all_transforms, &all_global_transforms, 0, &to_check));
+        hierarchy_display.push(get_descendants(
+            &all_children,
+            &all_names,
+            &root_entity,
+            &all_transforms,
+            &all_global_transforms,
+            0,
+            &to_check,
+        ));
         // let mut children = all_children.get(root_entity);
         /*for child in children.iter() {
             // hierarchy_display
@@ -94,68 +118,65 @@ pub fn draw_hierarchy_debug(
     display.sections[0].value = hierarchy_display.join("\n");
 }
 
-
-
 ////////:just some testing for gltf extras
 fn check_for_gltf_extras(
-gltf_extras_per_entity: Query<(
-    Entity,
-    Option<&Name>,
-    Option<&GltfSceneExtras>,
-    Option<&GltfExtras>,
-    Option<&GltfMeshExtras>,
-    Option<&GltfMaterialExtras>,
-)>,
-mut display: Query<&mut Text, With<HiearchyDebugTag>>,
+    gltf_extras_per_entity: Query<(
+        Entity,
+        Option<&Name>,
+        Option<&GltfSceneExtras>,
+        Option<&GltfExtras>,
+        Option<&GltfMeshExtras>,
+        Option<&GltfMaterialExtras>,
+    )>,
+    mut display: Query<&mut Text, With<HiearchyDebugTag>>,
 ) {
-let mut gltf_extra_infos_lines: Vec<String> = vec![];
+    let mut gltf_extra_infos_lines: Vec<String> = vec![];
 
-for (id, name, scene_extras, extras, mesh_extras, material_extras) in
-    gltf_extras_per_entity.iter()
-{
-    if scene_extras.is_some()
+    for (id, name, scene_extras, extras, mesh_extras, material_extras) in
+        gltf_extras_per_entity.iter()
+    {
+        if scene_extras.is_some()
         //|| extras.is_some()
         || mesh_extras.is_some()
         || material_extras.is_some()
-    {
-        let formatted_extras = format!(
-            "Extras per entity {} ('Name: {}'):
+        {
+            let formatted_extras = format!(
+                "Extras per entity {} ('Name: {}'):
 - scene extras:     {:?}
 - mesh extras:      {:?}
 - material extras:  {:?}
             ",
-            id,
-            name.unwrap_or(&Name::default()),
-            scene_extras,
-            //extras,
-            mesh_extras,
-            material_extras
-        );
-        gltf_extra_infos_lines.push(formatted_extras);
+                id,
+                name.unwrap_or(&Name::default()),
+                scene_extras,
+                //extras,
+                mesh_extras,
+                material_extras
+            );
+            gltf_extra_infos_lines.push(formatted_extras);
+        }
+        let mut display = display.single_mut();
+        display.sections[0].value = gltf_extra_infos_lines.join("\n");
     }
-    let mut display = display.single_mut();
-    display.sections[0].value = gltf_extra_infos_lines.join("\n");
-}
 }
 
 fn check_for_component(
     foo: Query<(Entity, Option<&Name>, &RedirectPropHitImpulse)>,
     mut display: Query<&mut Text, With<HiearchyDebugTag>>,
-
-){
+) {
     let mut info_lines: Vec<String> = vec![];
-    for (entiity, name , enum_complex) in foo.iter(){
-        let data = format!(" We have a matching component: {:?} (on {:?})", enum_complex, name);
+    for (entiity, name, enum_complex) in foo.iter() {
+        let data = format!(
+            " We have a matching component: {:?} (on {:?})",
+            enum_complex, name
+        );
         info_lines.push(data);
         println!("yoho component");
-
     }
     let mut display = display.single_mut();
     display.sections[0].value = info_lines.join("\n");
-
 }
 
-
 pub struct HiearchyDebugPlugin;
 impl Plugin for HiearchyDebugPlugin {
     fn build(&self, app: &mut App) {
@@ -164,7 +185,6 @@ impl Plugin for HiearchyDebugPlugin {
             //.add_systems(Update, check_for_component)
             //.add_systems(Update, draw_hierarchy_debug)
             //.add_systems(Update, check_for_gltf_extras)
-            
            ;
     }
 }

testing/bevy_example/src/main.rs

@@ -20,7 +20,6 @@ fn main() {
     App::new()
         .add_plugins((
             DefaultPlugins.set(AssetPlugin::default()),
-
             HiearchyDebugPlugin,
             // our custom plugins
             // CommonPlugin,

testing/bevy_example/src/state.rs

@@ -52,8 +52,6 @@ pub struct InGameLoading;
 pub struct StatePlugin;
 impl Plugin for StatePlugin {
     fn build(&self, app: &mut App) {
-        app
-            .init_state::<AppState>()
-            .init_state::<GameState>();
+        app.init_state::<AppState>().init_state::<GameState>();
     }
 }

testing/bevy_example/src/test_components.rs

@@ -214,7 +214,7 @@ pub struct ComponentBToFilterOut;
 
 #[derive(Component, Reflect, Default, Debug)]
 #[reflect(Component)]
-pub struct ComponentWithFieldsOfIdenticalType{
+pub struct ComponentWithFieldsOfIdenticalType {
     pub first: f32,
     pub second: f32,
     pub third: Vec<f32>,
@@ -224,9 +224,8 @@ pub struct ComponentWithFieldsOfIdenticalType{
 #[reflect(Component)]
 pub struct ComponentWithFieldsOfIdenticalType2(f32, f32, f32);
 
-
 #[derive(Debug, Clone, Copy, PartialEq, Reflect, Component)]
-#[reflect(Component, )]
+#[reflect(Component)]
 pub enum RedirectPropHitImpulse {
     Local(Vec3),
 }
@@ -279,14 +278,11 @@ impl Plugin for ComponentsTestPlugin {
             .register_type::<HashmapTestStringColorFlat>()
             .register_type::<HashmapTestStringEnum>()
             .register_type::<HashmapTestStringStruct>()
-
             .register_type::<ComponentAToFilterOut>()
             .register_type::<ComponentBToFilterOut>()
             .register_type::<ComponentWithFieldsOfIdenticalType>()
             .register_type::<ComponentWithFieldsOfIdenticalType2>()
-
             .register_type::<RedirectPropHitImpulse>()
-
             .add_plugins(MaterialPlugin::<
                 ExtendedMaterial<StandardMaterial, MyExtension>,
             >::default());

tools/blenvy/README_auto_export.md

@@ -133,7 +133,7 @@ This issue has been resolved in v0.9.
 You can enable this option to automatically replace all the **collection instances** inside your main scene with blueprints
 - whenever you change your main scene (or your library scene , if that option is enabled), all your collection instances 
     * will be replaced with empties (this will not be visible to you)
-    * those empties will have additional custom properties / components : ```BlueprintInfo``` & ```SpawnHere```
+    * those empties will have additional custom properties / components : ```BlueprintInfo``` & ```SpawnBlueprint```
     * your main scene/ level will be exported to a much more trimmed down gltf file (see next point)
     * all the original collections (that you used to create the instances) will be exported as **seperate gltf files** into the "library" folder
 

tools/blenvy/TODO.md

@@ -215,18 +215,20 @@ Blender side:
 
 Bevy Side:
 - [x] deprecate BlueprintName & BlueprintPath & use BlueprintInfo instead
-- [ ] make blueprint instances invisible until spawning is done to avoid "spawn flash"?
-- [ ] restructure blueprint spawning 
+- [x] make blueprint instances invisible until spawning is done to avoid "spawn flash"?
+    - [x] make this controlable via an additional "HideUntilReady" component
+    - [x] register "HideUntilReady" so users can set this on their blueprints in Blender directly
+- [x] restructure blueprint spawning 
     - [x] "blueprint ready" only be triggered after all its sub blueprints are ready 
     - [x] "blueprintInstance ready"/finished
         BlueprintAssetsLoaded
         BlueprintSceneSpawned
         BlueprintChildrenReady
         BlueprintReadyForPostProcess
-    - [ ] fix issues with deeply nested blueprints
+    - [x] fix issues with deeply nested blueprints
         - perhaps reverse logic by using iter_ascendants
     - [x] fix materials handling
-    - [ ] fix animations handling
+    - [x] fix animations handling
 
 - [ ] simplify testing example:
     - [x] remove use of rapier physics (or even the whole common boilerplate ?)
@@ -235,7 +237,7 @@ Bevy Side:
     - [ ] other examples without interactions or physics 
 - [ ] add hot reloading
     - [x] basics
-    - [ ] make it enabled/disabled based on general flag
+    - [x] make it enabled/disabled based on general flag
     - [ ] cleanup internals
 - [ ] review & change general component insertion & spawning ordering & logic
     - GltfComponentsSet::Injection => GltfBlueprintsSet::Spawn => GltfBlueprintsSet::AfterSpawn

tools/blenvy/add_ons/auto_export/common/duplicate_object.py

@@ -98,7 +98,7 @@ def duplicate_object(object, parent, combine_mode, destination_collection, bluep
         empty_obj = make_empty(original_name, object.location, object.rotation_euler, object.scale, destination_collection)
         
         """we inject the collection/blueprint name & path, as a component called 'BlueprintInfo', but we only do this in the empty, not the original object"""
-        empty_obj['SpawnHere'] = '()'
+        empty_obj['SpawnBlueprint'] = '()'
         empty_obj['BlueprintInfo'] = f'(name: "{blueprint_name}", path: "{blueprint_path}")'
         
         # we copy custom properties over from our original object to our empty

tools/blenvy/tests/expected_component_values.py

@@ -89,7 +89,7 @@ expected_custom_property_values = {'bevy_animation::AnimationPlayer': '(animatio
  'bevy_gltf_blueprints::animation::SceneAnimations': '(named_animations: "")',
  'bevy_gltf_blueprints::materials::MaterialInfo': '(name: " ", source: " ")',
  'bevy_gltf_blueprints::spawn_from_blueprints::BlueprintsList': '({})',
- 'bevy_gltf_blueprints::spawn_from_blueprints::SpawnHere': '()',
+ 'bevy_gltf_blueprints::spawn_from_blueprints::SpawnBlueprint': '()',
  'bevy_gltf_components::GltfProcessed': '()',
  'bevy_gltf_components::blender_settings::lighting::BlenderBackgroundShader': '(color: Rgba(red:1.0, green:1.0, '
                                                                               'blue:0.0, alpha:1.0), strength: 0.0)',
@@ -347,7 +347,7 @@ expected_custom_property_values_randomized = {'bevy_animation::AnimationPlayer':
  'bevy_gltf_blueprints::animation::SceneAnimations': '(named_animations: "")',
  'bevy_gltf_blueprints::materials::MaterialInfo': '(name: "sbnpsago", source: "piuzfbqp")',
  'bevy_gltf_blueprints::spawn_from_blueprints::BlueprintsList': '({})',
- 'bevy_gltf_blueprints::spawn_from_blueprints::SpawnHere': '()',
+ 'bevy_gltf_blueprints::spawn_from_blueprints::SpawnBlueprint': '()',
  'bevy_gltf_components::GltfProcessed': '()',
  'bevy_gltf_components::blender_settings::lighting::BlenderBackgroundShader': '(color: Rgba(red:0.5714026093482971, '
                                                                               'green:0.42888906598091125, '