feat(engine): add support for custom camera implementations

1 files changed, 15 insertions, 8 deletions

diff --git a/engine/src/lib.rs b/engine/src/lib.rs
index c4711f2..806d7ec 100644
--- a/engine/src/lib.rs
+++ b/engine/src/lib.rs
@@ -33,23 +33,29 @@ pub use glfw::window::Key;
 pub use glfw::WindowSize;
 
 #[derive(Debug)]
-pub struct Engine
+pub struct Engine<CameraT>
 {
     /// Objects have to be dropped before window. Otherwise, UB.
     objects: BTreeMap<ObjectId, Object>,
     light_source: Option<LightSource>,
     window: Window,
-    renderer: Renderer,
+    renderer: Renderer<CameraT>,
     delta_time: Duration,
 }
 
-impl Engine
+impl<CameraT> Engine<CameraT>
+where
+    CameraT: Camera,
 {
     /// Creates and initializes a new engine.
     ///
     /// # Errors
     /// Will return `Err` if window creation or window configuration fails.
-    pub fn new(window_size: &WindowSize, window_title: &str) -> Result<Self, Error>
+    pub fn new(
+        window_size: &WindowSize,
+        window_title: &str,
+        camera: CameraT,
+    ) -> Result<Self, Error>
     {
         let window_builder = WindowBuilder::new();
 
@@ -66,10 +72,11 @@ impl Engine
             .map_err(Error::ConfigureWindowFailed)?;
 
         window.set_framebuffer_size_callback(move |new_window_size| {
-            Renderer::set_viewport(&Vec2::ZERO, &new_window_size);
+            Renderer::<CameraT>::set_viewport(&Vec2::ZERO, &new_window_size);
         });
 
-        let renderer = Renderer::new(&window).map_err(Error::InitializeRendererFailed)?;
+        let renderer =
+            Renderer::new(&window, camera).map_err(Error::InitializeRendererFailed)?;
 
         Ok(Self {
             window,
@@ -156,12 +163,12 @@ impl Engine
     }
 
     #[must_use]
-    pub fn camera(&self) -> &Camera
+    pub fn camera(&self) -> &CameraT
     {
         self.renderer.camera()
     }
 
-    pub fn camera_mut(&mut self) -> &mut Camera
+    pub fn camera_mut(&mut self) -> &mut CameraT
     {
         self.renderer.camera_mut()
     }