(NDK) Added Listener component and system

Former-commit-id: 0553c4ad9a7e33608e9ab91bd4ca8812272a6293

SDK/include/NDK/Components/ListenerComponent.hpp

@@ -0,0 +1,32 @@
+// 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_COMPONENTS_LISTENERCOMPONENT_HPP
+#define NDK_COMPONENTS_LISTENERCOMPONENT_HPP
+
+#include <NDK/Component.hpp>
+
+namespace Ndk
+{
+	class NDK_API ListenerComponent : public Component<ListenerComponent>
+	{
+		public:
+			ListenerComponent();
+			~ListenerComponent() = default;
+
+			bool IsActive() const;
+			bool SetActive(bool active = true);
+
+			static ComponentIndex componentIndex;
+
+		private:
+			bool m_isActive;
+	};
+}
+
+#include <NDK/Components/ListenerComponent.inl>
+
+#endif // NDK_COMPONENTS_LISTENERCOMPONENT_HPP

SDK/include/NDK/Components/ListenerComponent.inl

@@ -0,0 +1,21 @@
+// 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
+
+namespace Ndk
+{
+	inline ListenerComponent::ListenerComponent() :
+	m_isActive(true)
+	{
+	}
+
+	inline bool ListenerComponent::IsActive() const
+	{
+		return m_isActive;
+	}
+
+	inline bool ListenerComponent::SetActive(bool active)
+	{
+		m_isActive = active;
+	}
+}