Basic graphics structure

src/Engine/Graphics/Graphics.h

@@ -1,28 +1,22 @@
 #pragma once
 #include "MinimalEngine.h"
 #include "GraphicsResources.h"
+#include "Containers/Array.h"
 
 namespace Seele {
 	class Window;
 	class Graphics
 	{
 	public:
-		static Graphics& getInstance()
-		{
-			static Graphics instance;
-
-			return instance;
-		}
-		void init(GraphicsInitializer initializer);
-		void beginFrame();
-		void endFrame();
+		virtual void init(GraphicsInitializer initializer) = 0;
+		virtual void beginFrame() = 0;
+		virtual void endFrame() = 0;
+		virtual void* createWindow(const WindowCreateInfo& createInfo) = 0;
 	
 	//Singleton
 	private:
 		Graphics();
-		Graphics(Graphics const&) = delete;
-		void operator=(Graphics const&) = delete;
 		~Graphics();
-
+		friend class Window;
 	};
 }