resource: impl Reflect for a bunch of types, add some utility methods to handles

lyra-resource/src/gltf/material.rs

@@ -31,7 +31,7 @@ impl From<gltf::material::PbrMetallicRoughness<'_>> for PbrRoughness {
     }
 }
 
-#[derive(Clone, Debug, Default)]
+#[derive(Clone, Debug, Default, Reflect)]
 pub struct PbrGlossiness {
     /// The rgba diffuse color of the material
     pub diffuse_color: glam::Vec4,
@@ -95,7 +95,7 @@ impl From<gltf::material::AlphaMode> for AlphaMode {
     }
 }
 
-#[derive(Clone)]
+#[derive(Clone, Reflect)]
 pub struct Specular {
     /// The strength of the specular reflection, default of 1.0
     pub factor: f32,
@@ -131,7 +131,7 @@ impl Specular {
     }
 }
 
-#[derive(Clone, Default)]
+#[derive(Clone, Default, Reflect)]
 pub struct Material {
     pub shader_uuid: Option<u64>,
     pub name: Option<String>,

lyra-resource/src/gltf/mesh.rs

@@ -48,7 +48,7 @@ impl From<Vec<u32>> for MeshIndices {
 }
 
 #[repr(C)]
-#[derive(Clone, Debug, PartialEq)]
+#[derive(Clone, Debug, PartialEq, Reflect)]
 pub enum VertexAttributeData {
     Vec2(Vec<glam::Vec2>),
     Vec3(Vec<glam::Vec3>),
@@ -87,7 +87,7 @@ pub enum MeshVertexAttribute {
     Other(String),
 }
 
-#[derive(Clone, Default, lyra_ecs::Component)]
+#[derive(Clone, Default, lyra_ecs::Component, Reflect)]
 pub struct Mesh {
     pub attributes: HashMap<MeshVertexAttribute, VertexAttributeData>,
     pub indices: Option<MeshIndices>,

lyra-resource/src/gltf/mod.rs

@@ -2,6 +2,7 @@ pub mod loader;
 pub use loader::*;
 
 pub mod material;
+use lyra_reflect::Reflect;
 use lyra_scene::SceneGraph;
 use crate::ResourceData;
 pub use material::*;
@@ -14,8 +15,10 @@ pub use scene::*;
 
 use crate::ResHandle;
 
+use crate::lyra_engine;
+
 /// A loaded Gltf file
-#[derive(Clone, Default)]
+#[derive(Clone, Default, Reflect)]
 pub struct Gltf {
     pub scenes: Vec<ResHandle<SceneGraph>>,
     pub materials: Vec<ResHandle<Material>>,
@@ -48,6 +51,4 @@ impl ResourceData for Gltf {
     fn as_any_mut(&mut self) -> &mut dyn std::any::Any {
         self
     }
-
-    
 }

lyra-resource/src/resource.rs

@@ -1,6 +1,7 @@
 use std::{any::{Any, TypeId}, marker::PhantomData, ops::{Deref, DerefMut}, sync::{Arc, Condvar, Mutex, RwLock, RwLockReadGuard, RwLockWriteGuard}};
 
 use lyra_ecs::Component;
+use lyra_reflect::Reflect;
 use crate::{loader::LoaderError, lyra_engine, DependencyState};
 use uuid::Uuid;
 
@@ -90,16 +91,16 @@ pub struct UntypedResource {
     pub(crate) version: usize,
     pub(crate) state: ResourceState,
     uuid: Uuid,
-    path: Option<String>,
+    pub(crate) path: Option<String>,
     pub(crate) is_watched: bool,
     /// can be used to wait for the resource to load.
     pub(crate) condvar: Arc<(Mutex<bool>, Condvar)>,
 }
 
-#[derive(Clone, Component)]
+#[derive(Clone, Component, Reflect)]
 pub struct UntypedResHandle{
+    #[reflect(skip)]
     pub(crate) res: Arc<RwLock<UntypedResource>>,
-    #[allow(dead_code)]
     tyid: TypeId,
 }
 
@@ -131,6 +132,15 @@ impl UntypedResHandle {
         matches!(d.state, ResourceState::Ready(_))
     }
 
+    pub fn get_error(&self) -> Option<Arc<LoaderError>> {
+        let d = self.read();
+
+        match &d.state {
+            ResourceState::Error(e) => Some(e.clone()),
+            _ => None,
+        }
+    }
+
     /// Returns the uuid of the resource.
     pub fn uuid(&self) -> Uuid {
         let d = self.read();
@@ -199,11 +209,28 @@ impl UntypedResHandle {
         DependencyState::from_res_recurse(self)
     }
 
-    pub fn as_typed<T: ResourceData>(&self) -> ResHandle<T> {
-        ResHandle {
-            handle: self.clone(),
-            _marker: PhantomData::<T>,
-        }
+    /// Retrieve a typed handle to the resource.
+    /// 
+    /// Returns `None` if the types do not match
+    pub fn as_typed<T: ResourceData>(&self) -> Option<ResHandle<T>> {
+        self.clone().into_typed()
+    }
+
+    /// Convert `self` into a typed handle.
+    /// 
+    /// Returns `None` if the types do not match
+    pub fn into_typed<T: ResourceData>(self) -> Option<ResHandle<T>> {
+        if self.tyid == TypeId::of::<T>() {
+            Some(ResHandle {
+                handle: self,
+                _marker: PhantomData::<T>,
+            })
+        } else { None }
+    }
+
+    /// Retrieve the type id of the resource in the handle.
+    pub fn resource_type_id(&self) -> TypeId {
+        self.tyid
     }
 }
 
@@ -213,7 +240,7 @@ impl UntypedResHandle {
 /// This struct has an inner [`RwLock`] to the resource data, so most methods may be blocking.
 /// However, the only times it will be blocking is if another thread is reloading the resource
 /// and has a write lock on the data. This means that most of the time, it is not blocking.
-#[derive(Component)]
+#[derive(Component, Reflect)]
 pub struct ResHandle<T: ResourceData> {
     pub(crate) handle: UntypedResHandle,
     _marker: PhantomData<T>,
@@ -331,6 +358,10 @@ impl<T: ResourceData> ResourceStorage for ResHandle<T> {
         let mut d = self.handle.write();
         d.state = new;
     }
+    
+    fn clone_untyped(&self) -> UntypedResHandle {
+        self.handle.clone()
+    }
 }
 
 #[cfg(test)]

lyra-resource/src/texture.rs

@@ -75,7 +75,7 @@ impl From<DynamicImage> for Image {
     }
 }
 
-#[derive(Clone)]
+#[derive(Clone, Reflect)]
 pub struct Texture {
     pub image: ResHandle<Image>,
     pub sampler: Option<TextureSampler>,