wip: engine enhancements and fixes

asset/src/lib.rs

@@ -1,3 +1,10 @@
 pub mod model_manager;
-
 pub use crate::model_manager::{ModelManager, ModelManagerRef};
+
+pub use crate::model_manager::ModelID;
+#[macro_export]
+macro_rules! include_shader {
+    ($path:expr) => {
+        include_str!(concat!(env!("CARGO_MANIFEST_DIR"), "/../assets/shaders/", $path))
+    };
+}

asset/src/model_manager.rs

@@ -1,14 +1,17 @@
+use std::any::Any;
 use std::cell::RefCell;
-use std::path::Path;
+use std::path::{Path, PathBuf};
 use std::rc::Rc;
 
 pub type ModelManagerRef = Rc<RefCell<Box<dyn ModelManager>>>;
-
+pub type ModelID = PathBuf;
 
 /// The asset manager trait of Raidillon.
-pub trait ModelManager {
+pub trait ModelManager: Any {
     /// Loads a gltf model to VRAM.
     fn load_gltf(&mut self, path: &Path);
     /// Unloads the loaded model from VRAM.
     fn unload_model(&mut self, path: &Path);
+
+    fn get_model(&self, id: &ModelID) -> Option<&dyn Any>;
 }