feat(engine): add renderer extension

1 files changed, 43 insertions, 0 deletions

diff --git a/engine/src/renderer.rs b/engine/src/renderer.rs
index bdbbe0c..6ef1535 100644
--- a/engine/src/renderer.rs
+++ b/engine/src/renderer.rs
@@ -64,6 +64,49 @@ declare_entity!(
 );
 
 builder! {
+#[builder(name=ExtensionBuilder, derives=(Debug, Clone, Default))]
+#[derive(Debug, Clone)]
+#[non_exhaustive]
+pub struct Extension {}
+}
+
+impl Extension
+{
+    pub fn builder() -> ExtensionBuilder
+    {
+        ExtensionBuilder::default()
+    }
+}
+
+impl ecs::extension::Extension for Extension
+{
+    fn collect(self, mut collector: ecs::extension::Collector<'_>)
+    {
+        collector.add_declared_entity(&PRE_RENDER_PHASE);
+        collector.add_declared_entity(&RENDER_PHASE);
+        collector.add_declared_entity(&POST_RENDER_PHASE);
+
+        let _ = collector.add_sole(RenderPasses::default());
+
+        collector.add_system(*PRE_RENDER_PHASE, main_render_pass::add_main_render_passes);
+
+        collector.add_system(*RENDER_PHASE, enqueue_commands_from_render_passes);
+
+        collector.add_observer(handle_window_changed);
+
+        opengl::Extension::default().collect(collector);
+    }
+}
+
+impl Default for Extension
+{
+    fn default() -> Self
+    {
+        Self::builder().build()
+    }
+}
+
+builder! {
 /// Window graphics properties.
 #[builder(name=GraphicsPropertiesBuilder, derives=(Debug, Clone))]
 #[derive(Debug, Clone, Component)]