SDK: Add LifetimeComponent and LifetimeSystem

SDK/include/NDK/Components/LifetimeComponent.hpp

@@ -0,0 +1,40 @@
+// Copyright (C) 2017 Jérôme Leclercq
+// This file is part of the "Nazara Development Kit"
+// For conditions of distribution and use, see copyright notice in Prerequisites.hpp
+
+#pragma once
+
+#ifndef NDK_COMPONENTS_LIFETIMECOMPONENT_HPP
+#define NDK_COMPONENTS_LIFETIMECOMPONENT_HPP
+
+#include <NDK/Component.hpp>
+
+namespace Ndk
+{
+	class LifetimeComponent;
+
+	using LifetimeComponentHandle = Nz::ObjectHandle<LifetimeComponent>;
+
+	class NDK_API LifetimeComponent : public Component<LifetimeComponent>
+	{
+		friend class LifetimeSystem;
+
+		public:
+			inline LifetimeComponent(float lifetime);
+			LifetimeComponent(const LifetimeComponent&) = default;
+			~LifetimeComponent() = default;
+
+			inline float GetRemainingTime() const;
+
+			static ComponentIndex componentIndex;
+
+		private:
+			inline bool UpdateLifetime(float elapsedTime);
+
+			float m_lifetime;
+	};
+}
+
+#include <NDK/Components/LifetimeComponent.inl>
+
+#endif // NDK_COMPONENTS_LIFETIMECOMPONENT_HPP

SDK/include/NDK/Components/LifetimeComponent.inl

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+// Copyright (C) 2017 Jérôme Leclercq
+// This file is part of the "Nazara Development Kit"
+// For conditions of distribution and use, see copyright notice in Prerequisites.hpp
+
+#include <NDK/Components/LifetimeComponent.hpp>
+
+namespace Ndk
+{
+	inline LifetimeComponent::LifetimeComponent(float lifetime) :
+	m_lifetime(lifetime)
+	{
+	}
+
+	inline float Ndk::LifetimeComponent::GetRemainingTime() const
+	{
+		return m_lifetime;
+	}
+
+	inline bool LifetimeComponent::UpdateLifetime(float elapsedTime)
+	{
+		m_lifetime -= elapsedTime;
+		return m_lifetime < 0.f;
+	}
+}