Merge 67756dd2cd into d08c235122

* removed old assets & co
 * fresh blend with Blenvy logic
 * generated assets (wip)
 * started updating code (wip)

crates/blenvy/src/lib.rs

@@ -10,6 +10,9 @@ pub use registry::*;
 pub mod blueprints;
 pub use blueprints::*;
 
+pub mod save_load;
+pub use save_load::*;
+
 #[derive(Clone, Resource)]
 pub struct BlenvyConfig {
     // registry
@@ -26,6 +29,8 @@ pub struct BlenvyConfig {
     // save & load
     pub(crate) save_component_filter: SceneFilter,
     pub(crate) save_resource_filter: SceneFilter,
+    //pub(crate) save_path: PathBuf,
+    // save_path: PathBuf::from("saves"),
 }
 
 #[derive(Debug, Clone)]
@@ -63,6 +68,7 @@ impl Plugin for BlenvyPlugin {
             #[cfg(not(target_arch = "wasm32"))]
             ExportRegistryPlugin::default(),
             BlueprintsPlugin::default(),
+            SaveLoadPlugin::default()
         ))
         .insert_resource(BlenvyConfig {
             export_registry: self.export_registry,

crates/blenvy/src/save_load/mod.rs

@@ -1,108 +1,59 @@
-pub mod saveable;
-use std::path::PathBuf;
-
-pub use saveable::*;
-
-pub mod saving;
-pub use saving::*;
-
-pub mod loading;
-pub use loading::*;
-
-use bevy::core_pipeline::core_3d::{Camera3dDepthTextureUsage, ScreenSpaceTransmissionQuality};
 use bevy::prelude::*;
-use bevy::prelude::{App, IntoSystemConfigs, Plugin};
-use blenvy::GltfBlueprintsSet;
 
-#[derive(SystemSet, Debug, Hash, PartialEq, Eq, Clone)]
+#[derive(Component, Reflect, Debug, Default)]
-pub enum SavingSet {
+#[reflect(Component)]
-    Save,
+/// component used to mark any entity as Dynamic: aka add this to make sure your entity is going to be saved
-}
+pub struct Dynamic;
 
-#[derive(SystemSet, Debug, Hash, PartialEq, Eq, Clone)]
+#[derive(Component, Reflect, Debug, Default)]
-pub enum LoadingSet {
+#[reflect(Component)]
-    Load,
+/// marker component for entities that do not have parents, or whose parents should be ignored when serializing
-}
+pub(crate) struct RootEntity;
 
-// Plugin configuration
+#[derive(Component, Debug)]
+/// internal helper component to store parents before resetting them
+pub(crate) struct OriginalParent(pub(crate) Entity);
 
-#[derive(Clone, Resource)]
-pub struct SaveLoadConfig {
-    pub(crate) save_path: PathBuf,
-    pub(crate) component_filter: SceneFilter,
-    pub(crate) resource_filter: SceneFilter,
-}
-
-// define the plugin
-
-pub struct SaveLoadPlugin {
-    pub component_filter: SceneFilter,
-    pub resource_filter: SceneFilter,
-    pub save_path: PathBuf,
-}
-
-impl Default for SaveLoadPlugin {
-    fn default() -> Self {
-        Self {
-            component_filter: SceneFilter::default(),
-            resource_filter: SceneFilter::default(),
-            save_path: PathBuf::from("scenes"),
-        }
-    }
-}
 
+/// Marker component to Flag the root entity of all static entities (immutables)
 #[derive(Component, Reflect, Debug, Default)]
 #[reflect(Component)]
 pub struct StaticEntitiesRoot;
 
+/// Marker component to Flag the root entity of all dynamic entities (mutables)
 #[derive(Component, Reflect, Debug, Default)]
 #[reflect(Component)]
 pub struct DynamicEntitiesRoot;
 
+
+#[derive(Resource, Clone, Debug, Default, Reflect)]
+#[reflect(Resource)]
+pub struct StaticEntitiesBlueprintInfo {
+    //pub blueprint_info: BlueprintInfo,
+    pub path: String,
+}
+
+
+pub mod saving;
+pub use saving::*;
+
+#[derive(Debug, Clone, Default)]
+/// Plugin for saving & loading
+pub struct SaveLoadPlugin {}
+
 impl Plugin for SaveLoadPlugin {
     fn build(&self, app: &mut App) {
         app.register_type::<Dynamic>()
             .register_type::<StaticEntitiesRoot>()
-            // TODO: remove these in bevy 0.13, as these are now registered by default
-            .register_type::<Camera3dDepthTextureUsage>()
-            .register_type::<ScreenSpaceTransmissionQuality>()
-            .register_type::<StaticEntitiesStorage>()
-            .add_event::<SaveRequest>()
-            .add_event::<LoadRequest>()
-            .add_event::<LoadingFinished>()
-            .add_event::<SavingFinished>()
-            .insert_resource(SaveLoadConfig {
-                save_path: self.save_path.clone(),
 
-                component_filter: self.component_filter.clone(),
+            .add_event::<SaveRequest>()
-                resource_filter: self.resource_filter.clone(),
+            .add_event::<SaveFinished>()
-            })
-            .configure_sets(
-                Update,
-                (LoadingSet::Load).chain().before(GltfBlueprintsSet::Spawn), //.before(GltfComponentsSet::Injection)
-            )
             .add_systems(
-                PreUpdate,
+                Update,
                 (prepare_save_game, apply_deferred, save_game, cleanup_save)
                     .chain()
                     .run_if(should_save),
             )
-            .add_systems(Update, mark_load_requested)
+        ;
-            .add_systems(
-                Update,
-                (unload_world, apply_deferred, load_game)
-                    .chain()
-                    .run_if(resource_exists::<LoadRequested>)
-                    .run_if(not(resource_exists::<LoadFirstStageDone>))
-                    .in_set(LoadingSet::Load),
-            )
-            .add_systems(
-                Update,
-                (load_static, apply_deferred, cleanup_loaded_scene)
-                    .chain()
-                    .run_if(resource_exists::<LoadFirstStageDone>)
-                    // .run_if(in_state(AppState::LoadingGame))
-                    .in_set(LoadingSet::Load),
-            );
     }
 }

crates/blenvy/src/save_load/old/mod_old.rs

@@ -0,0 +1,76 @@
+pub mod saveable;
+use std::path::PathBuf;
+
+pub use saveable::*;
+
+pub mod saving;
+pub use saving::*;
+
+pub mod loading;
+pub use loading::*;
+
+use bevy::core_pipeline::core_3d::{Camera3dDepthTextureUsage, ScreenSpaceTransmissionQuality};
+use bevy::prelude::*;
+use bevy::prelude::{App, IntoSystemConfigs, Plugin};
+use blenvy::GltfBlueprintsSet;
+
+#[derive(SystemSet, Debug, Hash, PartialEq, Eq, Clone)]
+pub enum SavingSet {
+    Save,
+}
+
+#[derive(SystemSet, Debug, Hash, PartialEq, Eq, Clone)]
+pub enum LoadingSet {
+    Load,
+}
+
+
+#[derive(Component, Reflect, Debug, Default)]
+#[reflect(Component)]
+pub struct StaticEntitiesRoot;
+
+#[derive(Component, Reflect, Debug, Default)]
+#[reflect(Component)]
+pub struct DynamicEntitiesRoot;
+
+impl Plugin for SaveLoadPlugin {
+    fn build(&self, app: &mut App) {
+        app.register_type::<Dynamic>()
+            .register_type::<StaticEntitiesRoot>()
+            // TODO: remove these in bevy 0.13, as these are now registered by default
+            .register_type::<Camera3dDepthTextureUsage>()
+            .register_type::<ScreenSpaceTransmissionQuality>()
+            .register_type::<StaticEntitiesStorage>()
+            .add_event::<SaveRequest>()
+            .add_event::<LoadRequest>()
+            .add_event::<LoadingFinished>()
+            .add_event::<SavingFinished>()
+            .configure_sets(
+                Update,
+                (LoadingSet::Load).chain().before(GltfBlueprintsSet::Spawn), //.before(GltfComponentsSet::Injection)
+            )
+            .add_systems(
+                PreUpdate,
+                (prepare_save_game, apply_deferred, save_game, cleanup_save)
+                    .chain()
+                    .run_if(should_save),
+            )
+            .add_systems(Update, mark_load_requested)
+            .add_systems(
+                Update,
+                (unload_world, apply_deferred, load_game)
+                    .chain()
+                    .run_if(resource_exists::<LoadRequested>)
+                    .run_if(not(resource_exists::<LoadFirstStageDone>))
+                    .in_set(LoadingSet::Load),
+            )
+            .add_systems(
+                Update,
+                (load_static, apply_deferred, cleanup_loaded_scene)
+                    .chain()
+                    .run_if(resource_exists::<LoadFirstStageDone>)
+                    // .run_if(in_state(AppState::LoadingGame))
+                    .in_set(LoadingSet::Load),
+            );
+    }
+}

crates/blenvy/src/save_load/old/saving.rs

@@ -0,0 +1,196 @@
+use bevy::prelude::*;
+use bevy::tasks::IoTaskPool;
+use blenvy::{BlueprintName, InBlueprint, Library, SpawnHere};
+
+use std::fs::File;
+use std::io::Write;
+use std::path::Path;
+
+use crate::{DynamicEntitiesRoot, SaveLoadConfig, StaticEntitiesRoot};
+
+#[derive(Event, Debug)]
+pub struct SaveRequest {
+    pub path: String,
+}
+
+#[derive(Event)]
+pub struct SavingFinished;
+
+pub fn should_save(save_requests: EventReader<SaveRequest>) -> bool {
+    !save_requests.is_empty()
+}
+
+#[derive(Resource, Clone, Debug, Default, Reflect)]
+#[reflect(Resource)]
+pub struct StaticEntitiesStorage {
+    pub name: String,
+    pub library_path: String,
+}
+
+#[derive(Component, Reflect, Debug, Default)]
+#[reflect(Component)]
+/// marker component for entities that do not have parents, or whose parents should be ignored when serializing
+pub(crate) struct RootEntity;
+
+#[derive(Component, Debug)]
+/// internal helper component to store parents before resetting them
+pub(crate) struct OriginalParent(pub(crate) Entity);
+
+// any child of dynamic/ saveable entities that is not saveable itself should be removed from the list of children
+pub(crate) fn prepare_save_game(
+    saveables: Query<Entity, (With<Dynamic>, With<BlueprintName>)>,
+    root_entities: Query<Entity, Or<(With<DynamicEntitiesRoot>, Without<Parent>)>>, //  With<DynamicEntitiesRoot>
+    dynamic_entities: Query<(Entity, &Parent, Option<&Children>), With<Dynamic>>,
+    static_entities: Query<(Entity, &BlueprintName, Option<&Library>), With<StaticEntitiesRoot>>,
+
+    mut commands: Commands,
+) {
+    for entity in saveables.iter() {
+        commands.entity(entity).insert(SpawnHere);
+    }
+
+    for (entity, parent, children) in dynamic_entities.iter() {
+        let parent = parent.get();
+        if root_entities.contains(parent) {
+            commands.entity(entity).insert(RootEntity);
+        }
+
+        if let Some(children) = children {
+            for sub_child in children.iter() {
+                if !dynamic_entities.contains(*sub_child) {
+                    commands.entity(*sub_child).insert(OriginalParent(entity));
+                    commands.entity(entity).remove_children(&[*sub_child]);
+                }
+            }
+        }
+    }
+    for (_, blueprint_name, library) in static_entities.iter() {
+        let library_path: String = library.map_or_else(|| "", |l| l.0.to_str().unwrap()).into();
+        commands.insert_resource(StaticEntitiesStorage {
+            name: blueprint_name.0.clone(),
+            library_path,
+        });
+    }
+}
+
+pub(crate) fn save_game(world: &mut World) {
+    info!("saving");
+
+    let mut save_path: String = "".into();
+    let mut events = world.resource_mut::<Events<SaveRequest>>();
+
+    for event in events.get_reader().read(&events) {
+        info!("SAVE EVENT !! {:?}", event);
+        save_path.clone_from(&event.path);
+    }
+    events.clear();
+
+    let saveable_entities: Vec<Entity> = world
+        .query_filtered::<Entity, (With<Dynamic>, Without<InBlueprint>, Without<RootEntity>)>()
+        .iter(world)
+        .collect();
+
+    let saveable_root_entities: Vec<Entity> = world
+        .query_filtered::<Entity, (With<Dynamic>, Without<InBlueprint>, With<RootEntity>)>()
+        .iter(world)
+        .collect();
+
+    info!("saveable entities {}", saveable_entities.len());
+    info!("saveable root entities {}", saveable_root_entities.len());
+
+    let save_load_config = world
+        .get_resource::<SaveLoadConfig>()
+        .expect("SaveLoadConfig should exist at this stage");
+
+    // we hardcode some of the always allowed types
+    let filter = save_load_config
+        .component_filter
+        .clone()
+        .allow::<Parent>()
+        .allow::<Children>()
+        .allow::<BlueprintName>()
+        .allow::<SpawnHere>()
+        .allow::<Dynamic>()
+        
+
+        ;
+
+    // for root entities, it is the same EXCEPT we make sure parents are not included
+    let filter_root = filter.clone().deny::<Parent>();
+
+    let filter_resources = save_load_config
+        .resource_filter
+        .clone()
+        .allow::<StaticEntitiesStorage>()
+        ;
+
+    // for default stuff
+    let scene_builder = DynamicSceneBuilder::from_world(world)
+        .with_filter(filter.clone())
+        .with_resource_filter(filter_resources.clone());
+
+    let mut dyn_scene = scene_builder
+        .extract_resources()
+        .extract_entities(saveable_entities.clone().into_iter())
+        .remove_empty_entities()
+        .build();
+
+    // for root entities
+    let scene_builder_root = DynamicSceneBuilder::from_world(world)
+        .with_filter(filter_root.clone())
+        .with_resource_filter(filter_resources.clone());
+
+    // FIXME : add back
+    let mut dyn_scene_root = scene_builder_root
+        .extract_resources()
+        .extract_entities(
+            saveable_root_entities.clone().into_iter(), // .chain(static_world_markers.into_iter()),
+        )
+        .remove_empty_entities()
+        .build();
+
+    dyn_scene.entities.append(&mut dyn_scene_root.entities);
+    // dyn_scene.resources.append(&mut dyn_scene_root.resources);
+
+    let serialized_scene = dyn_scene
+        .serialize(&world.resource::<AppTypeRegistry>().read())
+        .unwrap();
+
+    let save_path = Path::new("assets")
+        .join(&save_load_config.save_path)
+        .join(Path::new(save_path.as_str())); // Path::new(&save_load_config.save_path).join(Path::new(save_path.as_str()));
+    info!("saving game to {:?}", save_path);
+
+    // world.send_event(SavingFinished);
+
+    #[cfg(not(target_arch = "wasm32"))]
+    IoTaskPool::get()
+        .spawn(async move {
+            // Write the scene RON data to file
+            File::create(save_path)
+                .and_then(|mut file| file.write(serialized_scene.as_bytes()))
+                .expect("Error while writing save to file");
+        })
+        .detach();
+}
+
+pub(crate) fn cleanup_save(
+    needs_parent_reset: Query<(Entity, &OriginalParent)>,
+    mut saving_finished: EventWriter<SavingFinished>,
+    mut commands: Commands,
+) {
+    for (entity, original_parent) in needs_parent_reset.iter() {
+        commands.entity(original_parent.0).add_child(entity);
+    }
+    commands.remove_resource::<StaticEntitiesStorage>();
+    saving_finished.send(SavingFinished);
+}
+/*
+pub(crate) fn cleanup_save(mut world: &mut World) {
+
+    let mut query = world.query::<(Entity, &OriginalParent)>();
+    for (mut entity, original_parent) in query.iter_mut(&mut world) {
+        let e = world.entity_mut(original_parent.0);
+        // .add_child(entity);
+    }
+}*/

crates/blenvy/src/save_load/saveable.rs

@@ -1,7 +0,0 @@
-use bevy::prelude::*;
-
-#[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 Dynamic(pub bool);
-

crates/blenvy/src/save_load/saving.rs

@@ -1,55 +1,42 @@
-use bevy::prelude::*;
-use bevy::tasks::IoTaskPool;
-use blenvy::{BlueprintName, InBlueprint, Library, SpawnHere};
-
 use std::fs::File;
 use std::io::Write;
 use std::path::Path;
 
-use crate::{Dynamic, DynamicEntitiesRoot, SaveLoadConfig, StaticEntitiesRoot};
+use bevy::render::camera::{CameraMainTextureUsages, CameraRenderGraph};
+use bevy::{prelude::*, tasks::IoTaskPool};
+use bevy::prelude::World;
+
+use crate::{BlenvyConfig, BlueprintInfo, Dynamic, FromBlueprint, RootEntity, SpawnBlueprint};
+
+use super::{DynamicEntitiesRoot, OriginalParent, StaticEntitiesRoot};
 
 #[derive(Event, Debug)]
 pub struct SaveRequest {
     pub path: String,
 }
-
 #[derive(Event)]
-pub struct SavingFinished;
+pub struct SaveFinished; // TODO: merge the the events above
 
 pub fn should_save(save_requests: EventReader<SaveRequest>) -> bool {
     !save_requests.is_empty()
 }
 
-#[derive(Resource, Clone, Debug, Default, Reflect)]
-#[reflect(Resource)]
-pub struct StaticEntitiesStorage {
-    pub name: String,
-    pub library_path: String,
-}
-
-#[derive(Component, Reflect, Debug, Default)]
-#[reflect(Component)]
-/// marker component for entities that do not have parents, or whose parents should be ignored when serializing
-pub(crate) struct RootEntity;
-
-#[derive(Component, Debug)]
-/// internal helper component to store parents before resetting them
-pub(crate) struct OriginalParent(pub(crate) Entity);
 
 // any child of dynamic/ saveable entities that is not saveable itself should be removed from the list of children
 pub(crate) fn prepare_save_game(
-    saveables: Query<Entity, (With<Dynamic>, With<BlueprintName>)>,
+    saveables: Query<Entity, (With<Dynamic>, With<BlueprintInfo>)>,
     root_entities: Query<Entity, Or<(With<DynamicEntitiesRoot>, Without<Parent>)>>, //  With<DynamicEntitiesRoot>
     dynamic_entities: Query<(Entity, &Parent, Option<&Children>), With<Dynamic>>,
-    static_entities: Query<(Entity, &BlueprintName, Option<&Library>), With<StaticEntitiesRoot>>,
+    static_entities: Query<(Entity, &BlueprintInfo), With<StaticEntitiesRoot>>,
 
     mut commands: Commands,
 ) {
     for entity in saveables.iter() {
-        commands.entity(entity).insert(SpawnHere);
+        commands.entity(entity).insert(SpawnBlueprint);
     }
 
     for (entity, parent, children) in dynamic_entities.iter() {
+        println!("prepare save game");
         let parent = parent.get();
         if root_entities.contains(parent) {
             commands.entity(entity).insert(RootEntity);
@@ -64,14 +51,17 @@ pub(crate) fn prepare_save_game(
             }
         }
     }
-    for (_, blueprint_name, library) in static_entities.iter() {
+    /*for (_, blueprint_name) in static_entities.iter() {
         let library_path: String = library.map_or_else(|| "", |l| l.0.to_str().unwrap()).into();
         commands.insert_resource(StaticEntitiesStorage {
             name: blueprint_name.0.clone(),
             library_path,
         });
-    }
+    }*/
 }
+
+
+
 pub(crate) fn save_game(world: &mut World) {
     info!("saving");
 
@@ -85,39 +75,49 @@ pub(crate) fn save_game(world: &mut World) {
     events.clear();
 
     let saveable_entities: Vec<Entity> = world
-        .query_filtered::<Entity, (With<Dynamic>, Without<InBlueprint>, Without<RootEntity>)>()
+        // .query_filtered::<Entity, (With<Dynamic>, Without<FromBlueprint>, Without<RootEntity>)>()
+        .query_filtered::<Entity, (With<Dynamic>, Without<RootEntity>)>()
         .iter(world)
         .collect();
 
     let saveable_root_entities: Vec<Entity> = world
-        .query_filtered::<Entity, (With<Dynamic>, Without<InBlueprint>, With<RootEntity>)>()
+        .query_filtered::<Entity, (With<Dynamic>, With<RootEntity>)>()
+        //.query_filtered::<Entity, (With<Dynamic>, Without<FromBlueprint>, With<RootEntity>)>()
         .iter(world)
         .collect();
 
     info!("saveable entities {}", saveable_entities.len());
     info!("saveable root entities {}", saveable_root_entities.len());
 
-    let save_load_config = world
+    let config = world
-        .get_resource::<SaveLoadConfig>()
+        .get_resource::<BlenvyConfig>()
-        .expect("SaveLoadConfig should exist at this stage");
+        .expect("Blenvy configuration should exist at this stage");
 
     // we hardcode some of the always allowed types
-    let filter = save_load_config
+    let filter = config
-        .component_filter
+        .save_component_filter
         .clone()
         .allow::<Parent>()
         .allow::<Children>()
-        .allow::<BlueprintName>()
+        .allow::<BlueprintInfo>()
-        .allow::<SpawnHere>()
+        .allow::<SpawnBlueprint>()
-        .allow::<Dynamic>();
+        .allow::<Dynamic>()
+        
+        /*.deny::<CameraRenderGraph>()
+        .deny::<CameraMainTextureUsages>()
+        .deny::<Handle<Mesh>>()
+        .deny::<Handle<StandardMaterial>>() */
+        ;
 
     // for root entities, it is the same EXCEPT we make sure parents are not included
     let filter_root = filter.clone().deny::<Parent>();
 
-    let filter_resources = save_load_config
+    let filter_resources = config.clone()
-        .resource_filter
+        .save_resource_filter
-        .clone()
+        .deny::<Time<Real>>()
-        .allow::<StaticEntitiesStorage>();
+
+        .clone();
+        //.allow::<StaticEntitiesStorage>();
 
     // for default stuff
     let scene_builder = DynamicSceneBuilder::from_world(world)
@@ -143,15 +143,15 @@ pub(crate) fn save_game(world: &mut World) {
         .remove_empty_entities()
         .build();
 
-    dyn_scene.entities.append(&mut dyn_scene_root.entities);
+    // dyn_scene.entities.append(&mut dyn_scene_root.entities);
     // dyn_scene.resources.append(&mut dyn_scene_root.resources);
 
     let serialized_scene = dyn_scene
         .serialize(&world.resource::<AppTypeRegistry>().read())
-        .unwrap();
+        .expect("filtered scene should serialize correctly");
 
     let save_path = Path::new("assets")
-        .join(&save_load_config.save_path)
+        //.join(&config.save_path)
         .join(Path::new(save_path.as_str())); // Path::new(&save_load_config.save_path).join(Path::new(save_path.as_str()));
     info!("saving game to {:?}", save_path);
 
@@ -170,21 +170,12 @@ pub(crate) fn save_game(world: &mut World) {
 
 pub(crate) fn cleanup_save(
     needs_parent_reset: Query<(Entity, &OriginalParent)>,
-    mut saving_finished: EventWriter<SavingFinished>,
+    mut saving_finished: EventWriter<SaveFinished>,
     mut commands: Commands,
 ) {
     for (entity, original_parent) in needs_parent_reset.iter() {
         commands.entity(original_parent.0).add_child(entity);
     }
-    commands.remove_resource::<StaticEntitiesStorage>();
+    // commands.remove_resource::<StaticEntitiesStorage>();
-    saving_finished.send(SavingFinished);
+    saving_finished.send(SaveFinished);
 }
-/*
-pub(crate) fn cleanup_save(mut world: &mut World) {
-
-    let mut query = world.query::<(Entity, &OriginalParent)>();
-    for (mut entity, original_parent) in query.iter_mut(&mut world) {
-        let e = world.entity_mut(original_parent.0);
-        // .add_child(entity);
-    }
-}*/

docs/avian/readme.md

@@ -3,6 +3,20 @@
 This guide assumes that you have a basic Blenvy setup ready to tinker in.
 If you don't have that yet, please refer to the [quickstart](../quickstart/readme.md) guide.
 
+## Table of Contents
+
+- [Add Avian to Bevy](#add-avian-to-bevy)
+- [Prepare your Scenes](#prepare-your-scenes)
+- [Create a Rigid Body](#create-a-rigid-body)
+- [Add Primitive Colliders](#add-primitive-colliders)
+  - [Direct](#direct)
+  - [With Empty](#with-empty)
+  - [Wireframes](#wireframes)
+- [Add Dynamic Colliders](#add-dynamic-colliders)
+  - [Convex](#convex)
+  - [Concave](#concave)
+- [Other useful components](#other-useful-components)
+
 ## Add Avian to Bevy
 
 No big surprises here. Simply add `avian3d` as a dependency by running the following from your project root:
@@ -42,76 +56,41 @@ fn setup(mut commands: Commands) {
 
 Run this once with `cargo.run` to generate a `registry.json` that contains the Avian components.
 
-## Prepare the Blueprints
+## Prepare your Scenes
 
-Set up your `World` and `Library` scenes in Blender. Switch to the `Library` scene.
+Set up your `World` and `Library` scenes in Blender.
+
+Go into your `World` scene. If you are coming from the [quickstart guide](../quickstart/readme.md), you can remove the `Player` instance as we don't need it in this guide.
+If you have created this scene yourself in advance, make sure that it contains a camera, a light, and some kind of ground.
+
+Since the objects are quite big, you may need to move the camera a bit further away to see them all.
+We set its Y location to `-15` and the X rotation to `90` for this reason.
+Pressing `0` on your numpad will show you a preview of what the camera sees.
+
+For reference, this is how our world setup looks:
+
+<details>
+<summary>The world setup before adding any physics</summary>
+<img src="img/empty_world.png" width = 100%/>
+</details>
+
+Now switch to the `Library` scene.
 If you're coming from the [quickstart](../quickstart/readme.md) guide, you may now delete the `Player` collection by
-right-clicking it in the outliner and selecting `Delete Hierarchy` as we don't need it in this guide.
+right-clicking it in the outliner and selecting `Delete Hierarchy`.
 Remember, you can find the outliner all the way to the right.
 
-We will be showing different ways to add colliders, so we need to add a blueprint for each approach.
+## Create a Rigid Body
-Create three new collections in the outliner by doing `rightclick` -> `New Collection` and name them as follows:
 
-- Cube
+Create a new collection with `rightclick` -> `New Collection` and name it `Direct`. This name will make sense in the next section.
-- Board
-- Cylinder
 
-Your outliner should now look like this:
+Click on the `Direct` collection we just created to select it. Then, go to `Add` -> `Mesh` -> `Cube` in the upper left corner to add a cube to the collection. Leave it at the default transform.
-
-<details>
-<summary>Our empty collections</summary>
-<img src="img/empty_collections.png" width = 50%/>
-</details>
-
-If you accidentally created a collection as a child of another, simply drag-and-drop them around to reorder them until they look like the image above.
-
-### Cube
-
-Click on the `Cube` collection we just created to select it. Then, go to `Add` -> `Mesh` -> `Cube` in the upper left corner to add a cube to the collection. Leave it at the default transform.
-
-### Board
-
-Click on the `Board` collection. Again, go to `Add` -> `Mesh` -> `Cube`. This time, scale it until it looks like a flat board:
-
-<details>
-<summary>The cylinder in Blender</summary>
-<img src="img/cylinder.png" width = 50%/>
-</details>
-
-> [!TIP]
-> The above screenshot was made after disabling the visibility of the `Cube` collection by clicking the eye icon in the outliner.
->
-> <details>
-> <summary>Hiding objects</summary>
-> <img src="img/hiding.png" width = 50%/>
-> </details>
->
-> Hiding other collections becomes quickly essential when working with blueprints.
-
-The scaling we used was the following:
-
-- X: `2.5`
-- Y: `0.5`
-- Z: `1.5`
-
-### Cylinder
-
-Finally, click on the `Cylinder` collection. Go to `Add` -> `Mesh` -> `Cylinder`. Leave it at the default transform.
-
-You should now have three collections with different shapes in them:
-<details>
-<summary>Collections with objects in the outliner</summary>
-<img src="img/three_object_collection.png" width = 50%/>
-</details>
-
-## Add RigidBody Components
 
 Avian makes a distinction between a *rigid body* and its associated *colliders*.
 In general, the best practice is to have a parent object be a rigid body and then have at least one descendant object be a collider.
 
-Adding the `RigidBody` is the same for all approaches:
+Add the `RigidBody` as follows:
 
-- select the object in the viewport
+- select the object in the viewport, i.e. the cube.
 - go to the Blenvy menu's component manager. Remember, if are missing the side menu, you can open it with `N`.
 - type `rigidbody` in the search bar
 - select `avian3d::dynamics::rigid_body::RigidBody`
@@ -129,7 +108,7 @@ The result should look like this:
 </details>
 
 The default value for `RigidBody` is `Dynamic`, which is what we want for all three objects.
-It means that they will be affected by gravity and other forces. Repeat this step for the `Board` and `Cylinder` objects.
+It means that they will be affected by gravity and other forces.
 
 ## Add Primitive Colliders
 
@@ -137,9 +116,9 @@ Colliders come in two flavors: primitive and dynamic. Primitives are made up of
 
 There are three different ways to add primitive colliders to the objects, in order of increasing complexity.
 
-### Quick and Dirty
+### Direct
 
-Select the cube and search in the components for `colliderconstructor`. Select `avian3d::collision::collider::constructor::ColliderConstructor` and add it.
+Select the cube we just created and search in the components for `colliderconstructor`. Select `avian3d::collision::collider::constructor::ColliderConstructor` and add it.
 By default, the collider will be of the variant `Sphere`. Change it to `Cuboid`.
 Since the standard cube in Blender is of size 2 m, set the `x_length`, `y_length`, and `z_length` all to `2.0`:
 <details>
@@ -153,10 +132,83 @@ That's already it.
 > This method brings a major footgun: Blender uses Z-up coordinates, while Bevy uses Y-up coordinates.
 > The information you enter into the `ColliderConstructor` is in Bevy's coordinate system, so don't mix them up!
 
-### Using Empties
+To see it in action, we switch to the `World` scene and add and instance of our `Direct` collection with `Add` -> `Collection Instance`.
+
+<details>
+<summary>The world scene with the direct collider cube</summary>
+<img src="img/direct_in_world.png" width = 50%/>
+</details>
+
+Save the scene to let Blenvy export everything and run the game with `cargo run`.
+
+<details>
+<summary>The cube falls down</summary>
+<img src="img/falling_direct.gif" width = 50%/>
+</details>
+
+If everything went right, your cube should fall into the void due to gravity.
+Note that it phases right through the ground because we have not yet added a rigid body and collider to it yet.
+
+Click on the ground and add a `RigidBody` component as described before to it, but this time set it to `Static`.
+This means that the ground itself will not react to forces such as gravity, but will still affect other rigid bodies.
+
+Add a collider to the ground as before. Make sure that the dimensions of the collider match the dimensions of the ground.
+
+<details>
+<summary>Ground collider</summary>
+<img src="img/ground collider.png" width = 100%/>
+</details>
+
+> [!CAUTION]
+> As mentioned before, when using this method you should be aware that the component
+> is in Bevy's coordinate system, so set the `y_length` to the *height* of the ground.
+
+Run your game again with `cargo run` to see the cube landing on the ground.
+
+<details>
+<summary>The cube falls onto the ground</summary>
+<img src="img/falling_direct_on_static.gif" width = 50%/>
+</details>
+
+> [!TIP]
+> If your scene is doing something weird, try adding Avian's
+> [`PhysicsDebugPlugin`](https://docs.rs/avian3d/latest/avian3d/debug_render/struct.PhysicsDebugPlugin.html)
+> to your Bevy app to see the colliders at runtime.  
+> If the collider looks flipped, try switching the Y and Z lengths.
+
+### With Empty
+
+Go back to the `Library` scene. Add a collection named `With Empty`.
+
+> [!TIP]
+> If you accidentally created a collection as a child of another, simply drag-and-drop them around to reorder them
+
+With the new collection selected, go to `Add` -> `Mesh` -> `Cube`. Name the new object `Board`.
+This time, scale it until it looks like a flat board:
+
+<details>
+<summary>The board in Blender</summary>
+<img src="img/board.png" width = 50%/>
+</details>
+
+> [!TIP]
+> The above screenshot was made after disabling the visibility of the `Direct` collection by clicking the eye icon in the outliner.
+>
+> <details>
+> <summary>Hiding objects</summary>
+> <img src="img/hiding.png" width = 50%/>
+> </details>
+>
+> Hiding other collections becomes quickly essential when working with blueprints.
+
+The scaling we used was the following:
+
+- X: `2.5`
+- Y: `0.5`
+- Z: `1.5`
 
 You'll notice that the last variant does not actually show you a preview of the collider. Let's fix that.
-Click on the `Board` and then select `Add` -> `Empty` -> `Cube`.
+Click on the `With Empty` collection and then select `Add` -> `Empty` -> `Cube`.
 To make its properties a bit nice to work with, go to the `Data` tab of the `Properties` window in the lower right:
 
 <details>
@@ -171,7 +223,7 @@ You'll notice that it says "Size: 1m". This is a little bit misleading, as we've
 <img src="img/data.png" width = 50%/>
 </details>
 
-Add a collider to this empty like you did in the ["Quick and Dirty" section](#quick-and-dirty).
+Add a collider to this empty like you did in the ["Direct" section](#direct).
 Set its lengths to `1` this time.
 
 If you have only the `Empty` set to visible and selected it, your viewport should now look as follows:
@@ -235,7 +287,18 @@ You can just use these values as the scale for the `Empty`. After everything is
 
 Note that the orange collider outlines should align nicely with the board's mesh.
 
-### Using Wireframes
+Add an instance of the `With Empty` collection to the `World` scene just as before and run the game.
+You should now see both objects fall to the ground.
+
+<details>
+<summary>The cube and board falling to the ground</summary>
+<img src="img/falling_empty.gif" width = 50%/>
+</details>
+
+### Wireframes
+
+Add a new collection named `Wireframe`. With it selected,
+go to `Add` -> `Mesh` -> `Cylinder`. Leave it at the default transform.
 
 The last variant is a bit of a workaround for the fact that empties in Blender cannot have an arbitrary shape.
 For example, a cylinder is not supported. So, we are going to create a new cylinder preview by hand.
@@ -289,46 +352,13 @@ The rest of the steps are identical to the empty: Drag-and-drop the cylinder col
 > You can use the builtin [Add Mesh Extra Objects](https://docs.blender.org/manual/en/latest/addons/add_mesh/mesh_extra_objects.html)
 > extension to fill this gap.
 
-## Populate the world
+Add an instance of the `Wireframe` collection to the `World` scene and run the game to see all kinds of primitive colliders tumble around.
-
-Go into your `World` scene. If you are coming from the [quickstart guide](../quickstart/readme.md), you can remove the `Player` empty that is left over.
-If you have created this scene yourself in advance, make sure that it contains a camera, a light, and some kind of ground.
-For reference, this is how our world setup looks:
 
 <details>
-<summary>The world setup before adding any physics</summary>
+<summary>Cylinder collider falling down</summary>
-<img src="img/empty_world.png" width = 100%/>
+<img src="img/falling_wireframe.gif" width = 50%/>
 </details>
 
-Before we add any objects, we'll make the ground a rigid body as well. Add a `RigidBody` component as described before to it, but this time set it to `Static`. Add a collider to it in any of the ways described above. We used the `Quick and Dirty` method for this:
-
-<details>
-<summary>Ground collider</summary>
-<img src="img/ground collider.png" width = 100%/>
-</details>
-
-> [!CAUTION]
-> As mentioned before, when using this method you should be aware that the component
-> is in Bevy's coordinate system, so set the `y_length` to the height of the ground.
-
-Now add instances of the `Cube`, `Board`, and `Cylinder` to the world by selecting `Add` -> `Collection Instance`.
-
-Since the objects are quite big, you may need to move the camera a bit further away to see them all.
-We set its Y location to `-15` and the X rotation to `90` for this reason.
-Pressing `0` on your numpad will show you a preview of what the camera sees.
-
-Save the scene to let Blenvy export everything. Run your game with `cargo run` and you should see some objects falling onto the ground!
-
-<details>
-<summary>Objects falling onto the ground</summary>
-<img src="img/falling.gif" width = 100%/>
-</details>
-
-> [!TIP]
-> If your scene is doing something weird, try adding Avian's
-> [`PhysicsDebugPlugin`](https://docs.rs/avian3d/latest/avian3d/debug_render/struct.PhysicsDebugPlugin.html)
-> to your Bevy app to see the colliders at runtime.
-
 ## Add Dynamic Colliders
 
 Now let's go for some more complex shapes.
@@ -337,7 +367,7 @@ or just quickly want to test something. For this, we are going to use dynamic co
 
 ### Convex
 
-Go back to the `Library` scene, add a new collection, and name it `Torus`. Select `Add` -> `Mesh` -> `Torus`. Leave it at the default transform. Add a `RigidBody` to it. Your scene should now look like this:
+Go back to the `Library` scene, add a new collection, and name it `Convex`. Select `Add` -> `Mesh` -> `Torus`. Leave it at the default transform. Add a `RigidBody` to it. Your scene should now look like this:
 
 <details>
 <summary>A simple torus</summary>
@@ -355,7 +385,7 @@ You can access it by expanding your object in the outliner. Its icon is a green
 
 <details>
 <summary>The selected mesh</summary>
-<img src="img/selected_mesh.png" width = 50%/>
+<img src="img/select_mesh.png" width = 50%/>
 </details>
 
 With the *mesh* selected, add a `ColliderConstructor` to it. Set the variant to `ConvexHullFromMesh`.
@@ -366,11 +396,21 @@ If you did everything correctly, the component manager should say "Components fo
 <img src="img/torus_component.png" width = 50%/>
 </details>
 
-That's all for now
+Go to the `World` scene and add an instance of the `Convex` collection. Save the scene, then run the game to see the torus fall down.
+
+<details>
+<summary>The convex collider falling</summary>
+<img src="img/falling_convex.gif" width = 50%/>
+</details>
+
+> [!TIP]
+> Is your game crashing with `Tried to add a collider to entity Torus via ConvexHullFromMesh that requires a mesh, but no mesh handle was found`?
+> That means you added your `ColliderConstructor` to the object instead of the mesh.
+> Go back to the screenshots above and make sure you have the mesh selected when adding the component.
 
 ### Concave
 
-Add a new collection and name it `Monkey`. Select `Add` -> `Mesh` -> `Monkey`.
+Add a new collection and name it `Concave`. Select `Add` -> `Mesh` -> `Monkey`.
 Yes, Blender has a builtin method for creating Suzanne, its monkey mascot. Isn't it great?
 Anyways, add a rigid body to it. Afterwards, just as before, select the *mesh* of the monkey.
 Add a `ColliderConstructor` to it. This time, set the variant to `TrimeshFromMesh`.
@@ -381,22 +421,13 @@ Add a `ColliderConstructor` to it. This time, set the variant to `TrimeshFromMes
 > That means that any objects that are completely inside the mesh will not collide with it.
 > Only use a concave collider if you *really* need it.
 
-## Add the Dynamic Colliders to the World
+Just as before, go to the `World` scene and add an instance of the `Concave` collection. Save the scene, then run the game to see the torus fall down.
-
-Save the scene to let Blenvy export everything.
-Go back to the `World` scene. Add instances of the `Torus` and `Monkey` collections to the world and run the game with `cargo run`.
-They should now fall onto the ground and interact with the other objects:
 
 <details>
-<summary>The primitive and dynamic colliders falling down</summary>
+<summary>The concave collider falling</summary>
-<img src="img/falling_dyn.gif" width = 100%/>
+<img src="img/falling_concave.gif" width = 50%/>
 </details>
 
-> [!TIP]
-> Is your game crashing with `Tried to add a collider to entity Torus via <ConvexHullFromMesh or TrimeshFromMesh> that requires a mesh, but no mesh handle was found`?
-> That means you added your `ColliderConstructor` to the object instead of the mesh.
-> Go back to the screenshots above and make sure you have the mesh selected when adding the component.
-
 ## Other useful components
 
 The object holding the `ColliderConstructor` can hold some additional components that are useful for tweaking the physics behavior.

examples/save_load/assets/assets_core.assets.ron

@@ -1 +0,0 @@
-({})

examples/save_load/assets/assets_game.assets.ron

@@ -1,8 +0,0 @@
-({
-    "world":File (path: "models/World.glb"),
-    "world_dynamic":File (path: "models/World_dynamic.glb"),
-
-    "models": Folder (
-        path: "models/library",
-    ),
-})

examples/save_load/assets/blueprints/Mover.meta.ron

@@ -0,0 +1,5 @@
+(
+  assets:
+   [ 
+   ]
+)

examples/save_load/assets/blueprints/Pillar.meta.ron

@@ -0,0 +1,5 @@
+(
+  assets:
+   [ 
+   ]
+)

examples/save_load/assets/levels/World.meta.ron

@@ -0,0 +1,9 @@
+(
+  assets:
+   [ 
+    ("Pillar", File ( path: "blueprints/Pillar.glb" )),
+    ("Stone", File ( path: "materials/Stone.glb" )),
+    ("Mover", File ( path: "blueprints/Mover.glb" )),
+    ("Material.001", File ( path: "materials/Material.001.glb" )),
+   ]
+)

examples/save_load/src/main.rs

@@ -1,14 +1,11 @@
 use std::any::TypeId;
 
 use bevy::{prelude::*, utils::hashbrown::HashSet};
-use blenvy::{AddToGameWorld, BlenvyPlugin, BluePrintBundle, BlueprintInfo, DynamicBlueprintInstance, GameWorldTag, HideUntilReady, SpawnBlueprint};
+use blenvy::{AddToGameWorld, BlenvyPlugin, BluePrintBundle, BlueprintInfo, Dynamic, DynamicBlueprintInstance, GameWorldTag, HideUntilReady, SaveRequest, SpawnBlueprint};
 use rand::Rng;
 
-mod core;
+// mod game;
-use crate::core::*;
+// use game::*;
-
-mod game;
-use game::*;
 
 mod component_examples;
 use component_examples::*;
@@ -37,13 +34,12 @@ fn main() {
                 ..Default::default()
             },
             // our custom plugins
-            CorePlugin,           // reusable plugins
+            // GamePlugin,           // specific to our game
-            GamePlugin,           // specific to our game
             ComponentsExamplesPlugin, // Showcases different type of components /structs
         ))
 
         .add_systems(Startup, setup_game)
-        .add_systems(Update, (spawn_blueprint_instance, save_game, load_game))
+        .add_systems(Update, (spawn_blueprint_instance, move_movers, save_game, load_game))
 
         .run();
 }
@@ -60,6 +56,13 @@ fn setup_game(
         HideUntilReady, // only reveal the level once it is ready
         GameWorldTag,
     ));
+
+     // here we spawn our game world/level, which is also a blueprint !
+     commands.spawn((
+        BlueprintInfo::from_path("levels/World_dynamic.glb"), // all we need is a Blueprint info...
+        SpawnBlueprint, // and spawnblueprint to tell blenvy to spawn the blueprint now
+        HideUntilReady, // only reveal the level once it is ready
+    ));
 }
 
 // you can also spawn blueprint instances at runtime
@@ -90,15 +93,47 @@ fn spawn_blueprint_instance(
     }
 }
 
-fn save_game(
+fn move_movers(
-    keycode: Res<ButtonInput<KeyCode>>,
+    mut movers: Query<(&mut Transform), With<Dynamic>>
-
 ) {
-    if keycode.just_pressed(KeyCode::KeyS) {
+    for mut transform in movers.iter_mut(){
-
+        println!("moving dynamic entity");
+        transform.translation.x += 0.01;
     }
 }
 
+fn save_game(
+    keycode: Res<ButtonInput<KeyCode>>,
+    mut save_requests: EventWriter<SaveRequest>,
+) {
+    if keycode.just_pressed(KeyCode::KeyS) {
+        save_requests.send(SaveRequest {
+            path: "scenes/save.scn.ron".into(),
+        });
+    }
+}
+
+/* 
+pub fn request_save(
+    mut save_requests: EventWriter<SaveRequest>,
+    keycode: Res<ButtonInput<KeyCode>>,
+
+    current_state: Res<State<GameState>>,
+    mut next_game_state: ResMut<NextState<GameState>>,
+) {
+    if keycode.just_pressed(KeyCode::KeyS)
+        && (current_state.get() != &GameState::InLoading)
+        && (current_state.get() != &GameState::InSaving)
+    {
+        next_game_state.set(GameState::InSaving);
+        save_requests.send(SaveRequest {
+            path: "save.scn.ron".into(),
+        });
+    }
+}*/
+
+
+
 fn load_game(
     keycode: Res<ButtonInput<KeyCode>>,
 ) {

tools/blenvy/add_ons/auto_export/levels/is_object_dynamic.py

@@ -1,12 +1,14 @@
 import bpy
 
+from ...bevy_components.components.metadata import get_bevy_component_value_by_long_name
 
 # checks if an object is dynamic
 # TODO: for efficiency, it might make sense to write this flag semi automatically at the root level of the object so we can skip the inner loop
 # TODO: we need to recompute these on blueprint changes too
 # even better, keep a list of dynamic objects per scene , updated only when needed ?
 def is_object_dynamic(object):
-    is_dynamic =  object['Dynamic'] if 'Dynamic' in object else False
+    is_dynamic = get_bevy_component_value_by_long_name(object, 'blenvy::save_load::Dynamic') is not None
+    #is_dynamic =  object['Dynamic'] if 'Dynamic' in object else False
     # only look for data in the original collection if it is not alread marked as dynamic at instance level
     if not is_dynamic and object.type == 'EMPTY' and hasattr(object, 'instance_collection') and object.instance_collection is not None :
         #print("collection", object.instance_collection, "object", object.name)
@@ -14,15 +16,18 @@ def is_object_dynamic(object):
         collection_name = object.instance_collection.name
         original_collection = bpy.data.collections[collection_name]
 
+        is_dynamic = get_bevy_component_value_by_long_name(original_collection, 'blenvy::save_load::Dynamic') is not None
         # scan original collection, look for a 'Dynamic' flag
-        for object in original_collection.objects:
+        """for object in original_collection.objects:
             #print(" inner", object)
-            if object.type == 'EMPTY' and object.name.endswith("components"):
+            if object.type == 'EMPTY': #and object.name.endswith("components"):
                 for component_name in object.keys():
                     #print("   compo", component_name)
                     if component_name == 'Dynamic':
                         is_dynamic = True
-                        break
+                        break"""
+    print("IS OBJECT DYNAMIC", object, is_dynamic)
+
     return is_dynamic
 
 def is_object_static(object):

tools/blenvy/add_ons/auto_export/materials/export_materials.py

@@ -1,10 +1,8 @@
 import os
 import bpy
-from pathlib import Path
 
 from blenvy.core.helpers_collections import (traverse_tree)
 from blenvy.core.object_makers import make_cube
-from blenvy.materials.materials_helpers import add_material_info_to_objects, get_all_materials
 from ..common.generate_temporary_scene_and_export import generate_temporary_scene_and_export
 from ..common.export_gltf import (generate_gltf_export_settings)