feat(engine): use slang for shadersHEADmaster

1 files changed, 40 insertions, 1 deletions

diff --git a/engine/src/model.rs b/engine/src/model.rs
index 4c88f8f..ebf623f 100644
--- a/engine/src/model.rs
+++ b/engine/src/model.rs
@@ -3,7 +3,7 @@ use std::collections::HashMap;
 
 use ecs::Component;
 
-use crate::asset::Handle as AssetHandle;
+use crate::asset::{Assets, Handle as AssetHandle};
 use crate::material::Material;
 use crate::material::asset::Map as MaterialAssetMap;
 use crate::mesh::Mesh;
@@ -40,6 +40,38 @@ impl Spec
     {
         SpecBuilder::default()
     }
+
+    pub fn find_first_material<'assets>(
+        &'assets self,
+        assets: &'assets Assets,
+    ) -> MaterialSearchResult<'assets>
+    {
+        let Some(material_name) = self.material_names.first() else {
+            return MaterialSearchResult::NoMaterials;
+        };
+
+        let material_asset = match &self.materials {
+            Materials::Maps(material_asset_map_assets) => material_asset_map_assets
+                .iter()
+                .find_map(|mat_asset_map_asset| {
+                    let mat_asset_map = assets.get(mat_asset_map_asset)?;
+
+                    mat_asset_map.assets.get(material_name)
+                }),
+            Materials::Direct(material_assets) => material_assets.get(material_name),
+        };
+
+        let Some(material_asset) = material_asset else {
+            return MaterialSearchResult::NotFound;
+        };
+
+        if assets.get(material_asset).is_none() {
+            tracing::trace!("Missing material asset");
+            return MaterialSearchResult::NotFound;
+        }
+
+        MaterialSearchResult::Found(material_asset)
+    }
 }
 
 #[derive(Debug, Default, Clone)]
@@ -152,3 +184,10 @@ impl Default for Materials
         Self::Maps(Vec::new())
     }
 }
+
+pub enum MaterialSearchResult<'a>
+{
+    Found(&'a AssetHandle<Material>),
+    NotFound,
+    NoMaterials,
+}