Implementing ECS SystemBase and updating slang

src/Engine/Scene/Scene.h

@@ -1,26 +1,26 @@
 #pragma once
+#include <entt/entt.hpp>
 #include "MinimalEngine.h"
-#include "Actor/Actor.h"
 #include "Graphics/GraphicsResources.h"
-#include "Components/PrimitiveComponent.h"
 #include "Graphics/MeshBatch.h"
 
 namespace Seele
 {
 DECLARE_REF(Material)
+DECLARE_REF(Entity)
 
 struct DirectionalLight
 {
-    Vector4 color;
-    Vector4 direction;
-    Vector4 intensity;
+    Math::Vector4 color;
+    Math::Vector4 direction;
+    Math::Vector4 intensity;
 };
 
 struct PointLight
 {
-    Vector4 positionWS;
+    Math::Vector4 positionWS;
     //Vector4 positionVS;
-    Vector4 colorRange;
+    Math::Vector4 colorRange;
 };
 
 #define MAX_DIRECTIONAL_LIGHTS 4
@@ -41,17 +41,31 @@ public:
     void start();
     void beginUpdate(double deltaTime);
     void commitUpdate();
-    void addActor(PActor actor);
-    void addPrimitiveComponent(PPrimitiveComponent comp);
-
-    const std::vector<PPrimitiveComponent>& getPrimitives() const { return primitives; }
-    const std::vector<StaticMeshBatch>& getStaticMeshes() const { return staticMeshes; }
-    LightEnv& getLightBuffer() { return lightEnv; }
+    entt::entity createEntity()
+    {
+        return registry.create();
+    }
+    template<typename Component, typename... Args>
+    Component& attachComponent(entt::entity entity, Args... args)
+    {
+        return registry.emplace<Component>(entity, args...);
+    }
+    template<typename Component>
+    Component& accessComponent(entt::entity entity)
+    {
+        return registry.get<Component>(entity);
+    }
+    template<typename Component>
+    const Component& accessComponent(entt::entity entity) const
+    {
+        return registry.get<Component>(entity);
+    }
+    Array<StaticMeshBatch> getStaticMeshes();
+    LightEnv getLightBuffer() const;
+    
+    entt::registry registry;
 private:
-    std::vector<StaticMeshBatch> staticMeshes;
-    std::vector<PActor> rootActors;
-    std::vector<PPrimitiveComponent> primitives;
-    LightEnv lightEnv;
     Gfx::PGraphics graphics;
 };
+DEFINE_REF(Scene)
 } // namespace Seele