building spawning update

game/shared/src/prefab_defination.rs

@@ -1,12 +1,13 @@
 use bevy::{
-	ecs::system::{EntityCommand, EntityCommands},
+	ecs::{relationship::RelatedSpawnerCommands, system::EntityCommands},
 	gltf::{Gltf, GltfMesh},
 	math::{Quat, Vec3},
 	prelude::*,
 };
 use serde::{Deserialize, Serialize};
 #[derive(Serialize, Deserialize, Debug)]
-pub struct PrefabDefination {
+pub struct PrefabDefination
+{
 	pub path: String,
 	pub pos: Vec3,
 	pub rot: Vec3,
@@ -14,38 +15,54 @@ pub struct PrefabDefination {
 	pub animations: Option<Vec<AnimationComponent>>,
 }
 
-impl PrefabDefination {
-	pub fn spawn_recursive(&self, gltf: &Gltf, commands: &mut ChildBuilder, meshes: &Assets<GltfMesh>) {
+impl PrefabDefination
+{
+	pub fn spawn_recursive(
+		&self,
+		gltf: &Gltf,
+		commands: &mut RelatedSpawnerCommands<ChildOf>,
+		meshes: &Assets<GltfMesh>,
+	)
+	{
 		let mesh_handle = &gltf.named_meshes[&self.path.clone().into_boxed_str()];
 		if let Some(gltf_mesh) = meshes.get(mesh_handle.id()) {
-			let (m, mat) = gltf_mesh.unpack();
-			let mut entity = commands.spawn((
-				Mesh3d(m),
-				MeshMaterial3d(mat),
-				Transform::from_translation(self.pos).with_rotation(Quat::from_euler(
-					bevy::math::EulerRot::XYZ,
-					self.rot.x,
-					self.rot.y,
-					self.rot.z,
-				)),
-			));
-			if let Some(children) = &self.children {
-				entity.with_children(|b| {
-					for child in children {
-						child.spawn_recursive(gltf, b, meshes);
-					}
-				});
+			if let Some(primitive) = gltf_mesh.primitives.first() {
+				let mesh = primitive.mesh.clone();
+				let mat = primitive
+					.material
+					.clone()
+					.expect(format!("Mesh '{}' does not have a meterial", primitive.name.as_str()).as_str());
+				let mut entity = commands.spawn((
+					Mesh3d(mesh),
+					MeshMaterial3d(mat),
+					Transform::from_translation(self.pos).with_rotation(Quat::from_euler(
+						bevy::math::EulerRot::XYZ,
+						self.rot.x,
+						self.rot.y,
+						self.rot.z,
+					)),
+				));
+				if let Some(children) = &self.children {
+					entity.with_children(|b| {
+						for child in children {
+							child.spawn_recursive(gltf, b, meshes);
+						}
+					});
+				}
 			}
 		}
 	}
 }
 
-pub trait UnpackGltfMesh {
+pub trait UnpackGltfMesh
+{
 	fn unpack(&self) -> (Handle<Mesh>, Handle<StandardMaterial>);
 }
 
-impl UnpackGltfMesh for GltfMesh {
-	fn unpack(&self) -> (Handle<Mesh>, Handle<StandardMaterial>) {
+impl UnpackGltfMesh for GltfMesh
+{
+	fn unpack(&self) -> (Handle<Mesh>, Handle<StandardMaterial>)
+	{
 		let p = &self.primitives[0];
 		let mut mat: Handle<StandardMaterial> = default();
 		if let Some(mesh_material) = &p.material {
@@ -56,19 +73,23 @@ impl UnpackGltfMesh for GltfMesh {
 }
 
 #[derive(Serialize, Deserialize, Debug)]
-pub enum AnimationComponent {
+pub enum AnimationComponent
+{
 	Rotation(RotationAnimation),
 	Slider,
 }
 
 #[derive(Serialize, Deserialize, Debug, Component, Clone, Copy)]
-pub struct RotationAnimation {
+pub struct RotationAnimation
+{
 	pub axis: Vec3,
 	pub speed: f32,
 }
 
-impl AnimationComponent {
-	pub fn apply(&self, commands: &mut EntityCommands) {
+impl AnimationComponent
+{
+	pub fn apply(&self, commands: &mut EntityCommands)
+	{
 		match self {
 			AnimationComponent::Rotation(comp) => {
 				commands.insert(comp.clone());