Ndk: Add RenderSystem (experimental)

Former-commit-id: 23b11c6e9a21a4f26df6bde3d161578101cb2b29

SDK/include/NDK/Systems/RenderSystem.hpp

@@ -0,0 +1,39 @@
+// Copyright (C) 2015 Jérôme Leclercq
+// This file is part of the "Nazara Development Kit"
+// For conditions of distribution and use, see copyright notice in Prerequesites.hpp
+
+#pragma once
+
+#ifndef NDK_SYSTEMS_RENDERSYSTEM_HPP
+#define NDK_SYSTEMS_RENDERSYSTEM_HPP
+
+#include <NDK/EntityList.hpp>
+#include <NDK/System.hpp>
+#include <unordered_map>
+#include <vector>
+
+namespace Ndk
+{
+	class GraphicsComponent;
+
+	class NDK_API RenderSystem : public System<RenderSystem>
+	{
+		public:
+			RenderSystem();
+			~RenderSystem() = default;
+
+			void Update(float elapsedTime);
+
+			static SystemIndex systemIndex;
+
+		private:
+			void OnEntityValidation(Entity* entity, bool justAdded) override;
+
+			EntityList m_cameras;
+			EntityList m_drawables;
+	};
+}
+
+#include <NDK/Systems/RenderSystem.inl>
+
+#endif // NDK_SYSTEMS_RENDERSYSTEM_HPP