Merge 9c7dfb5c76 into a2f8a66f66

* Use main readme for docs.rs
* Fix some clippy lints
* Use global links in stuff that ends up on docs.rs

README.md

@@ -29,8 +29,8 @@ Want to jump right in? See the [quickstart guide](https://github.com/kaosat-dev/
 ## Features
 
 * Useful if you want to use Blender as your Editor
-* define Bevy components as custom properties in Blender with an UI tool to add & edit Bevy components, automatically export gltf blueprints & more in [Blender](./tools/blenvy/README.md)
-* blueprints & levels system : turn your Blender collections into [gltf Blueprints](./crates/blenvy/README.md) for reuse inside levels that are just Blender scenes
+* define Bevy components as custom properties in Blender with an UI tool to add & edit Bevy components, automatically export gltf blueprints & more in [Blender](https://github.com/kaosat-dev/Blenvy/tree/blenvy/tools/blenvy)
+* blueprints & levels system : turn your Blender collections into [gltf Blueprints](https://github.com/kaosat-dev/Blenvy/tree/blenvy/crates/blenvy) for reuse inside levels that are just Blender scenes
 * setup & tweak components in Blender Collections & override any of them in your collection instances if you want
 * setup & tweak components for objects, meshes and materials as well !
 * automatically load all assets for each blueprint (gltf files, manually added assets), with no setup required
@@ -39,15 +39,15 @@ Want to jump right in? See the [quickstart guide](https://github.com/kaosat-dev/
 * minimal dependencies: Bevy, Serde & RON only!
 * opensource
 
-> If you were previously using the individual bevy_gltf_xxx crates & Blender add-ons please see the [migration guide](./Migration_guide.md)
+> If you were previously using the individual bevy_gltf_xxx crates & Blender add-ons please see the [migration guide](https://github.com/kaosat-dev/Blenvy/blob/blenvy/Migration_guide.md)
 
 ## Crates
 
 One crate to rule them all !
 
-* [blenvy](./crates/blenvy/) This crate allows you to
+* [blenvy](https://github.com/kaosat-dev/Blenvy/tree/blenvy/crates/blenvy) This crate allows you to
   * define components direclty inside gltf files and instanciate/inject the components on the Bevy side.
-  * export your project's Bevy registry to json, in order to be able to generate custom component UIs on the Blender side in the Blender [blenvy](./tools/blenvy/README.md) add-on
+  * export your project's Bevy registry to json, in order to be able to generate custom component UIs on the Blender side in the Blender [blenvy](https://github.com/kaosat-dev/Blenvy/tree/blenvy/tools/blenvy) add-on
   * define Blueprints/Prefabs for Bevy inside gltf files and spawn them in Bevy. With the ability to override and add components when spawning, efficient "level" loading etc
   * the ability to save & load your game state in a relatively simple way, by leveraging the blueprint functionality to only save a minimal subset of dynamic data, seperating dynamic & static parts of levels etc.
 
@@ -55,26 +55,26 @@ One crate to rule them all !
     There is a [video tutorial/explanation](https://youtu.be/-lcScjQCA3c) if you want, or you can read the crate docs.
     There is a [video tutorial/explanation](https://youtu.be/CgyNtwgYwdM) for this one too, or you can read the crate docs
 
-    The examples for the crate are [here](./examples/blenvy/)
+    The examples for the crate are [here](https://github.com/kaosat-dev/Blenvy/tree/blenvy/examples)
 
 ## Tools
 
 ### Blender: blenvy
 
-* an all in one [Blender addon](./tools/blenvy/README.md) for the Blender side of the workflow:
+* an all in one [Blender addon](https://github.com/kaosat-dev/Blenvy/tree/blenvy/tools/blenvy) for the Blender side of the workflow:
   * allow easilly adding & editing Bevy components , using automatically generated UIs for each component
   * automatically exports your level/world from Blender to gltf whenever you save your Blend file
-  * automatically export your [Gltf blueprints](./crates/blenvy/README.md) & assets
+  * automatically export your [Gltf blueprints](https://github.com/kaosat-dev/Blenvy/tree/blenvy/crates/blenvy) & assets
 
 ## Examples
 
-you can find all examples, [here](./examples/blenvy)
+you can find all examples, [here](https://github.com/kaosat-dev/Blenvy/tree/blenvy/examples)
 
-* [components](./examples/blenvy/components/) use of ```components``` only, to spawn entities with components defined inside gltf files
-* [blueprints](./examples/blenvy/blueprints/) use of ```blueprints``` and ```levels``` to spawn a level and then populate it with entities coming from different gltf files, live (at runtime) spawning of entities etc
-* [animation](./examples/blenvy/animation/) how to use and trigger animations from gltf files
-* [save_load](./examples/blenvy/save_load/) how to save & load levels
-* [demo](./examples/demo/) a full demo showcasing all features , including physics, animation
+* [`components`](https://github.com/kaosat-dev/Blenvy/tree/blenvy/examples/components/) use of ```components``` only, to spawn entities with components defined inside gltf files
+* [`blueprints`](https://github.com/kaosat-dev/Blenvy/tree/blenvy/examples/blueprints/) use of ```blueprints``` and ```levels``` to spawn a level and then populate it with entities coming from different gltf files, live (at runtime) spawning of entities etc
+* [`animation`](https://github.com/kaosat-dev/Blenvy/tree/blenvy/examples/animation/) how to use and trigger animations from gltf files
+* [`save_load`](https://github.com/kaosat-dev/Blenvy/tree/blenvy/examples/save_load/) how to save & load levels
+* [`demo`](https://github.com/kaosat-dev/Blenvy/tree/blenvy/examples/demo/) a full demo showcasing all features , including physics, animation
 
 ## Workflow
 
@@ -84,12 +84,12 @@ The workflow goes as follows (once you got your Bevy code setup)
 
 ![component registration](https://github.com/kaosat-dev/Blenvy/blob/main/docs/component_registration.png)
 
-* setup & then use the Blenvy [Bevy crate](./crates/blenvy/README.md)
-* setup & then use the Blenvy [Blender add-on](./tools/blenvy/README.md)
+* setup & then use the Blenvy [Bevy crate](https://github.com/kaosat-dev/Blenvy/tree/blenvy/crates/blenvy)
+* setup & then use the Blenvy [Blender add-on](https://github.com/kaosat-dev/Blenvy/tree/blenvy/tools/blenvy)
 * iterate
 * have fun !
 
-* then add your components to objects in Blender **with a nice UI** see [here](./README-workflow-ui.md) for more details
+* then add your components to objects in Blender **with a nice UI** see [here](https://github.com/kaosat-dev/Blenvy/blob/blenvy/README-workflow-ui.md) for more details
 
 See the [quickstart](https://github.com/kaosat-dev/Blenvy/blob/main/docs/quickstart/README.md) for a full step-by-step guide.
 
@@ -119,5 +119,5 @@ Thanks to all the contributors helping out with this project ! Big kudos to you,
 
 This repo, all its code, contents & assets is Dual-licensed under either of
 
-* Apache License, Version 2.0, ([LICENSE-APACHE](./LICENSE_APACHE.md) or <https://www.apache.org/licenses/LICENSE-2.0>)
-* MIT license ([LICENSE-MIT](./LICENSE_MIT.md) or <https://opensource.org/licenses/MIT>)
+* Apache License, Version 2.0, ([LICENSE-APACHE](https://github.com/kaosat-dev/Blenvy/blob/blenvy/LICENSE_APACHE.md) or <https://www.apache.org/licenses/LICENSE-2.0>)
+* MIT license ([LICENSE-MIT](https://github.com/kaosat-dev/Blenvy/blob/blenvy/LICENSE_MIT.mdd) or <https://opensource.org/licenses/MIT>)

crates/bevy_gltf_component_refs/Cargo.toml

@@ -0,0 +1,23 @@
+[package]
+name = "bevy_gltf_component_refs"
+version = "0.1.0"
+authors = ["Mark 'kaosat-dev' Moissette"]
+description = "Allows you to add reference components inside gltf files to relate components to each other on the Bevy side."
+homepage = "https://github.com/kaosat-dev/Blender_bevy_components_workflow"
+repository = "https://github.com/kaosat-dev/Blender_bevy_components_workflow"
+keywords = ["gamedev", "bevy", "assets", "gltf", "components"]
+categories = ["game-development"]
+edition = "2021"
+license = "MIT OR Apache-2.0"
+
+[lints]
+workspace = true
+
+[dependencies]
+bevy = { version = "0.13", default-features = false, features = ["bevy_scene"] }
+bevy_gltf_components = { version = "0.5", path = "../bevy_gltf_components" }
+
+[dev-dependencies]
+bevy = { version = "0.13", default-features = false, features = [
+  "dynamic_linking",
+] }

crates/bevy_gltf_component_refs/LICENSE.md

@@ -0,0 +1,4 @@
+This crate is available under either:
+
+* The [MIT License](./LICENSE_MIT)
+* The [Apache License, Version 2.0](./LICENSE_APACHE)

crates/bevy_gltf_component_refs/LICENSE_APACHE.md

@@ -0,0 +1,201 @@
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+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
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crates/bevy_gltf_component_refs/LICENSE_MIT.md

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2023 Mark "kaosat-dev" Moissette
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

crates/bevy_gltf_component_refs/src/lib.rs

@@ -0,0 +1,177 @@
+use bevy::{
+    app::{App, Plugin},
+    ecs::{
+        component::Component,
+        entity::Entity,
+        query::With,
+        reflect::ReflectComponent,
+        schedule::{IntoSystemConfigs, IntoSystemSetConfigs, SystemSet},
+        system::{Commands, Query, Res, ResMut, Resource, SystemParam},
+    },
+    hierarchy::{HierarchyQueryExt, Parent},
+    log::warn,
+    prelude::Update,
+    reflect::{Reflect, TypePath},
+    scene::SceneInstance,
+    utils::HashMap,
+};
+use bevy_gltf_components::GltfComponentsSet;
+use std::marker::PhantomData;
+
+/// Plugin for keeping the GltfRefMap in sync.
+pub struct GltfRefMapPlugin;
+
+impl Plugin for GltfRefMapPlugin {
+    fn build(&self, app: &mut App) {
+        app.register_type::<GltfRefTarget>()
+            .init_resource::<GltfRefMap>()
+            .configure_sets(
+                Update,
+                (GltfRefsSet::CreateRefMap, GltfRefsSet::ResolveRefs)
+                    .chain()
+                    .after(GltfComponentsSet::Injection),
+            )
+            .add_systems(
+                Update,
+                GltfRefMap::create_ref_map.in_set(GltfRefsSet::CreateRefMap),
+            );
+    }
+}
+
+#[derive(SystemSet, Debug, Hash, PartialEq, Eq, Clone)]
+/// SystemSet to order your systems based on when references are resolved.
+pub enum GltfRefsSet {
+    /// Systems that create the [`GltfRefMap`] for that frame.
+    CreateRefMap,
+    /// Systems that resolve references using the [`GltfRefMap`]. For types that
+    /// need to have references manually resolved, prefer to put their systems
+    /// here.
+    ResolveRefs,
+}
+
+#[derive(Component, Reflect)]
+#[reflect(Component)]
+struct GltfRefTarget(String);
+
+/// A map of references for Gltf instances.
+#[derive(Resource, Default)]
+pub struct GltfRefMap(HashMap<Entity, HashMap<String, Entity>>);
+
+impl GltfRefMap {
+    /// Gets an entity given its `gltf_root` and `ref_name`. A reference is
+    /// only valid on the same frame that the Gltf is spawned in. In other
+    /// words, after that same frame, any references on `gltf_root` will return
+    /// None.
+    pub fn get_ref(&self, gltf_root: Entity, ref_name: &String) -> Option<Entity> {
+        self.0.get(&gltf_root)?.get(ref_name).copied()
+    }
+
+    fn create_ref_map(
+        ref_targets: Query<(Entity, &GltfRefTarget)>,
+        gltf_for_entity: GltfForEntity,
+        mut ref_map: ResMut<GltfRefMap>,
+        mut commands: Commands,
+    ) {
+        ref_map.0.clear();
+
+        for (entity, ref_target) in ref_targets.iter() {
+            commands.entity(entity).remove::<GltfRefTarget>();
+            let Some(gltf_root) = gltf_for_entity.find_gltf_root(entity) else {
+                warn!("Entity {entity:?} is not part of a Gltf but contains a GltfRefTarget (target={}).", ref_target.0);
+                continue;
+            };
+            ref_map
+                .0
+                .entry(gltf_root)
+                .or_default()
+                .insert(ref_target.0.clone(), entity);
+        }
+    }
+}
+
+#[derive(Component, Reflect)]
+#[reflect(Component)]
+struct GltfRef<T: Component> {
+    target: String,
+    #[reflect(ignore)]
+    _marker: PhantomData<T>,
+}
+
+impl<T: Component> GltfRef<T>
+where
+    Entity: Into<T>,
+{
+    fn system(
+        refs: Query<(Entity, &Self)>,
+        gltf_for_entity: GltfForEntity,
+        ref_map: Res<GltfRefMap>,
+        mut commands: Commands,
+    ) {
+        for (entity, gltf_ref) in refs.iter() {
+            commands.entity(entity).remove::<Self>();
+            let Some(gltf_root) = gltf_for_entity.find_gltf_root(entity) else {
+                warn!("GltfRef should only be on descendants of a Gltf.");
+                continue;
+            };
+
+            match ref_map.get_ref(gltf_root, &gltf_ref.target) {
+                Some(target) => {
+                    commands.entity(entity).insert(Into::<T>::into(target));
+                }
+                None => {
+                    warn!(
+                        "Entity {entity:?} attempted to reference '{}' in gltf {gltf_root:?}",
+                        &gltf_ref.target
+                    );
+                }
+            }
+        }
+    }
+}
+
+/// Plugin for automatically converting [`GltfRef`]s into their corresponding
+/// `T`.
+pub struct GltfRefPlugin<T: Component + TypePath>(PhantomData<T>);
+
+impl<T: Component + TypePath> Plugin for GltfRefPlugin<T>
+where
+    Entity: Into<T>,
+{
+    fn build(&self, app: &mut App) {
+        app.register_type::<GltfRef<T>>().add_systems(
+            Update,
+            GltfRef::<T>::system.in_set(GltfRefsSet::ResolveRefs),
+        );
+    }
+}
+
+// Manual implementation of Default for GltfRefPlugin to avoid `Default` trait
+// bounds on `T`.
+impl<T: Component + TypePath> Default for GltfRefPlugin<T>
+where
+    Entity: Into<T>,
+{
+    fn default() -> Self {
+        Self(Default::default())
+    }
+}
+
+/// SystemParam to find the Gltf that an entity belongs to.
+#[derive(SystemParam)]
+pub struct GltfForEntity<'w, 's> {
+    gltfs: Query<'w, 's, (), With<SceneInstance>>,
+    hierarchy: Query<'w, 's, &'static Parent>,
+}
+
+impl<'w, 's> GltfForEntity<'w, 's> {
+    /// Finds the Gltf root for `entity`. Returns None if `entity` does not
+    /// belong to a Gltf.
+    pub fn find_gltf_root(&self, entity: Entity) -> Option<Entity> {
+        for entity in std::iter::once(entity).chain(self.hierarchy.iter_ancestors(entity)) {
+            if self.gltfs.contains(entity) {
+                return Some(entity);
+            }
+        }
+        None
+    }
+}

crates/blenvy/src/lib.rs

@@ -1,3 +1,5 @@
+#![doc = include_str!("../../../README.md")]
+
 use bevy::{render::primitives::Aabb, utils::HashMap};
 use std::path::PathBuf;