feat(bevy_gltf_blueprints): improved error handling for clone_entity (#82)

* feat(bevy_gltf_blueprints): improved error handling for clone_entity
 * you will now get component name for components that have not been registered & thus cannot be cloned
* added a small example (in examples/bevy_gltf_blueprints/basic), just press 'U' at runtime to try to spawn an entity with unregistered components
* closes #81

Cargo.lock

@@ -779,7 +779,7 @@ dependencies = [
 
 [[package]]
 name = "bevy_gltf_blueprints"
-version = "0.5.0"
+version = "0.5.1"
 dependencies = [
  "bevy",
  "bevy_gltf_components 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",

crates/bevy_gltf_blueprints/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "bevy_gltf_blueprints"
-version = "0.5.0"
+version = "0.5.1"
 authors = ["Mark 'kaosat-dev' Moissette"]
 description = "Adds the ability to define Blueprints/Prefabs for [Bevy](https://bevyengine.org/) inside gltf files and spawn them in Bevy."
 homepage = "https://github.com/kaosat-dev/Blender_bevy_components_workflow"

crates/bevy_gltf_blueprints/src/clone_entity.rs

@@ -18,29 +18,31 @@ impl CloneEntity {
     // - the source or destination entity do not exist
     fn clone_entity(self, world: &mut World) {
         let components = {
-            let registry = world.get_resource::<AppTypeRegistry>().unwrap().read();
+            let registry = world
+                .get_resource::<AppTypeRegistry>()
+                .expect("the world should have a type registry")
+                .read();
 
             world
                 .get_entity(self.source)
-                .unwrap()
+                .expect("source entity should exist")
                 .archetype()
                 .components()
                 .map(|component_id| {
-                    world
+                    let component_info = world
                         .components()
                         .get_info(component_id)
-                        .unwrap()
-                        .type_id()
-                        .unwrap()
-                })
-                .map(|type_id| {
-                    // println!("type_id {:?}", type_id);
-                    registry
-                        .get(type_id)
-                        .unwrap()
-                        .data::<ReflectComponent>()
-                        .unwrap()
-                        .clone()
+                        .expect("component info should be available");
+
+                    let type_id = component_info.type_id().unwrap();
+                    let type_id = registry.get(type_id).expect(
+                        format!(
+                            "cannot clone entity: component: {:?} is not registered",
+                            component_info.name()
+                        )
+                        .as_str(),
+                    );
+                    return type_id.data::<ReflectComponent>().unwrap().clone();
                 })
                 .collect::<Vec<_>>()
         };
@@ -51,7 +53,9 @@ impl CloneEntity {
                 .unwrap()
                 .clone_value();
 
-            let mut destination = world.get_entity_mut(self.destination).unwrap();
+            let mut destination = world
+                .get_entity_mut(self.destination)
+                .expect("destination entity should exist");
 
             component.apply_or_insert(&mut destination, &*source);
         }

crates/bevy_gltf_blueprints/src/spawn_from_blueprints.rs

@@ -49,12 +49,10 @@ pub(crate) fn spawn_from_blueprints(
     assets_gltf: Res<Assets<Gltf>>,
     asset_server: Res<AssetServer>,
     blueprints_config: Res<BluePrintsConfig>,
-
 ) {
     for (entity, name, blupeprint_name, transform, original_parent) in spawn_placeholders.iter() {
         debug!("need to spawn {:?}, id: {:?}", blupeprint_name.0, entity);
 
-
         let what = &blupeprint_name.0;
         let model_file_name = format!("{}.{}", &what, &blueprints_config.format);
         let model_path =
@@ -63,8 +61,6 @@ pub(crate) fn spawn_from_blueprints(
         debug!("attempting to spawn {:?}", model_path);
         let model_handle: Handle<Gltf> = asset_server.load(model_path);
 
-     
-
         let gltf = assets_gltf
             .get(&model_handle)
             .expect("this gltf should have been loaded");

examples/bevy_gltf_blueprints/basic/src/game/in_game.rs

@@ -40,6 +40,10 @@ pub fn setup_game(
     next_game_state.set(GameState::InGame)
 }
 
+#[derive(Component, Reflect, Default, Debug)]
+#[reflect(Component)]
+struct UnregisteredComponent;
+
 pub fn spawn_test(
     keycode: Res<Input<KeyCode>>,
     mut commands: Commands,
@@ -83,3 +87,48 @@ pub fn spawn_test(
         commands.entity(world).add_child(new_entity);
     }
 }
+
+pub fn spawn_test_failing(
+    keycode: Res<Input<KeyCode>>,
+    mut commands: Commands,
+
+    mut game_world: Query<(Entity, &Children), With<GameWorldTag>>,
+) {
+    if keycode.just_pressed(KeyCode::U) {
+        let world = game_world.single_mut();
+        let world = world.1[0];
+
+        let mut rng = rand::thread_rng();
+        let range = 5.5;
+        let x: f32 = rng.gen_range(-range..range);
+        let y: f32 = rng.gen_range(-range..range);
+
+        let mut rng = rand::thread_rng();
+        let range = 0.8;
+        let vel_x: f32 = rng.gen_range(-range..range);
+        let vel_y: f32 = rng.gen_range(2.0..2.5);
+        let vel_z: f32 = rng.gen_range(-range..range);
+
+        let name_index: u64 = rng.gen();
+
+        let new_entity = commands
+            .spawn((
+                BluePrintBundle {
+                    blueprint: BlueprintName("Health_Pickup".to_string()),
+                    transform: TransformBundle::from_transform(Transform::from_xyz(x, 2.0, y)),
+                    ..Default::default()
+                },
+                bevy::prelude::Name::from(format!("test{}", name_index)),
+                // BlueprintName("Health_Pickup".to_string()),
+                // SpawnHere,
+                // TransformBundle::from_transform(Transform::from_xyz(x, 2.0, y)),
+                Velocity {
+                    linvel: Vec3::new(vel_x, vel_y, vel_z),
+                    angvel: Vec3::new(0.0, 0.0, 0.0),
+                },
+                UnregisteredComponent,
+            ))
+            .id();
+        commands.entity(world).add_child(new_entity);
+    }
+}

examples/bevy_gltf_blueprints/basic/src/game/mod.rs

@@ -104,6 +104,7 @@ impl Plugin for GamePlugin {
                     player_move_demo, //.run_if(in_state(AppState::Running)),
                     // test_collision_events
                     spawn_test,
+                    spawn_test_failing,
                 )
                     .run_if(in_state(GameState::InGame)),
             )

examples/bevy_gltf_blueprints/basic_scene_components/src/core/camera/camera_replace_proxies.rs

@@ -6,14 +6,21 @@ use bevy::prelude::*;
 
 use super::CameraTrackingOffset;
 
-
 #[derive(Component, Reflect, Default, Debug)]
 #[reflect(Component)]
 pub struct SSAOSettings;
 
 pub fn camera_replace_proxies(
     mut commands: Commands,
-    mut added_cameras: Query<(Entity, &mut Camera, Option<&BloomSettings>, Option<&SSAOSettings>), (Added<Camera>, With<CameraTrackingOffset>)>,
+    mut added_cameras: Query<
+        (
+            Entity,
+            &mut Camera,
+            Option<&BloomSettings>,
+            Option<&SSAOSettings>,
+        ),
+        (Added<Camera>, With<CameraTrackingOffset>),
+    >,
 
     added_bloom_settings: Query<&BloomSettings, Added<BloomSettings>>,
     added_ssao_settings: Query<&SSAOSettings, Added<SSAOSettings>>, // Move to camera
@@ -24,15 +31,12 @@ pub fn camera_replace_proxies(
         commands
             .entity(entity)
             .insert(DebandDither::Enabled)
-            .insert(Tonemapping::BlenderFilmic)
-            ;
+            .insert(Tonemapping::BlenderFilmic);
 
         // we only inject the scene_level bloom settings if there are no settings already on the Camera
         if bloom_settings.is_none() {
             for bloom_settings in added_bloom_settings.iter() {
-                commands
-                    .entity(entity)
-                    .insert(BloomSettings {
+                commands.entity(entity).insert(BloomSettings {
                     intensity: bloom_settings.intensity,
                     composite_mode: BloomCompositeMode::Additive,
                     ..default()
@@ -44,7 +48,8 @@ pub fn camera_replace_proxies(
             for _ in added_ssao_settings.iter() {
                 commands.insert_resource(Msaa::Off); // when using SSAO, you cannot use Msaa
 
-                commands.entity(entity)
+                commands
+                    .entity(entity)
                     .insert(ScreenSpaceAmbientOcclusionBundle::default())
                     .insert(TemporalAntiAliasBundle::default());
             }

examples/bevy_gltf_blueprints/basic_scene_components/src/core/lighting/lighting_replace_proxies.rs

@@ -2,15 +2,18 @@ use bevy::prelude::*;
 
 use bevy::pbr::{CascadeShadowConfig, CascadeShadowConfigBuilder, DirectionalLightShadowMap};
 
+#[derive(Component, Reflect, Default, Debug)]
+#[reflect(Component)]
+pub struct AmbientLightSettings {
+    pub color: Color,
+    pub brightness: f32,
+}
 
 #[derive(Component, Reflect, Default, Debug)]
 #[reflect(Component)]
-pub struct AmbientLightSettings {pub color: Color, pub brightness: f32}
-
-#[derive(Component, Reflect, Default, Debug)]
-#[reflect(Component)]
-pub struct ShadowmapSettings {pub size: usize}
-
+pub struct ShadowmapSettings {
+    pub size: usize,
+}
 
 pub fn lighting_replace_proxies(
     mut added_dirights: Query<(Entity, &mut DirectionalLight), Added<DirectionalLight>>,
@@ -42,7 +45,6 @@ pub fn lighting_replace_proxies(
         light.shadows_enabled = true;
     }
 
-
     for setting in added_shadowmap_settings.iter() {
         commands.insert_resource(DirectionalLightShadowMap { size: setting.size });
     }
@@ -55,5 +57,4 @@ pub fn lighting_replace_proxies(
         // FIXME: does this belong here ?
         commands.insert_resource(ClearColor(ambient.color * ambient.brightness));
     }
-
 }

examples/bevy_gltf_blueprints/basic_scene_components/src/core/lighting/mod.rs

@@ -7,13 +7,10 @@ use bevy::prelude::*;
 pub struct LightingPlugin;
 impl Plugin for LightingPlugin {
     fn build(&self, app: &mut App) {
-        app
-        .register_type::<AmbientLightSettings>()
+        app.register_type::<AmbientLightSettings>()
             .register_type::<ShadowmapSettings>()
             // FIXME: adding these since they are missing
             .register_type::<NotShadowCaster>()
-
-        .add_systems(PreUpdate, lighting_replace_proxies)
-      ;
+            .add_systems(PreUpdate, lighting_replace_proxies);
     }
 }

examples/bevy_gltf_blueprints/nested_blueprints/src/test_components.rs

@@ -4,7 +4,6 @@ use bevy::prelude::*;
 #[reflect(Component)]
 struct Marker;
 
-
 #[derive(Component, Reflect, Default, Debug)]
 #[reflect(Component)]
 struct Enemy;
@@ -13,7 +12,6 @@ struct Enemy;
 #[reflect(Component)]
 struct NestingTest;
 
-
 #[derive(Component, Reflect, Default, Debug, Deref, DerefMut)]
 #[reflect(Component)]
 struct TuppleTestF32(f32);
@@ -77,7 +75,6 @@ impl Plugin for ComponentsTestPlugin {
             .register_type::<Marker>()
             .register_type::<Enemy>()
             .register_type::<NestingTest>()
-
             .register_type::<TuppleTestF32>()
             .register_type::<TuppleTestU64>()
             .register_type::<TuppleTestStr>()