(NDK) Added Listener component and system

Former-commit-id: 0553c4ad9a7e33608e9ab91bd4ca8812272a6293

SDK/include/NDK/Systems/ListenerSystem.hpp

@@ -0,0 +1,28 @@
+// 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_LISTENERSYSTEM_HPP
+#define NDK_SYSTEMS_LISTENERSYSTEM_HPP
+
+#include <NDK/System.hpp>
+
+namespace Ndk
+{
+	class NDK_API ListenerSystem : public System<ListenerSystem>
+	{
+		public:
+			ListenerSystem();
+			~ListenerSystem() = default;
+
+			void Update(float elapsedTime);
+
+			static SystemIndex systemIndex;
+	};
+}
+
+#include <NDK/Systems/ListenerSystem.inl>
+
+#endif // NDK_SYSTEMS_LISTENERSYSTEM_HPP

SDK/include/NDK/Systems/ListenerSystem.inl

@@ -0,0 +1,3 @@
+// 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