Replace float/UInt64 durations by a more precise Time class (#388)

Improve Clock class with atomic RestartIfOver method and allows to choose required precision

include/Nazara/Core/Systems/LifetimeSystem.hpp

@@ -9,6 +9,7 @@
 
 #include <Nazara/Prerequisites.hpp>
 #include <Nazara/Core/Config.hpp>
+#include <Nazara/Core/Time.hpp>
 #include <Nazara/Utils/TypeList.hpp>
 #include <entt/entt.hpp>
 
@@ -26,7 +27,7 @@ namespace Nz
 			LifetimeSystem(LifetimeSystem&&) = delete;
 			~LifetimeSystem() = default;
 
-			void Update(float elapsedTime);
+			void Update(Time elapsedTime);
 
 			LifetimeSystem& operator=(const LifetimeSystem&) = delete;
 			LifetimeSystem& operator=(LifetimeSystem&&) = delete;

include/Nazara/Core/Systems/SystemGraph.hpp

@@ -31,7 +31,7 @@ namespace Nz
 			template<typename T> T& GetSystem() const;
 
 			void Update();
-			void Update(float elapsedTime);
+			void Update(Time elapsedTime);
 
 			SystemGraph& operator=(const SystemGraph&) = delete;
 			SystemGraph& operator=(SystemGraph&&) = delete;
@@ -41,7 +41,7 @@ namespace Nz
 			{
 				virtual ~NodeBase();
 
-				virtual void Update(float elapsedTime) = 0;
+				virtual void Update(Time elapsedTime) = 0;
 
 				Int64 executionOrder;
 			};
@@ -51,7 +51,7 @@ namespace Nz
 			{
 				template<typename... Args> Node(Args&&... args);
 
-				void Update(float elapsedTime) override;
+				void Update(Time elapsedTime) override;
 
 				T system;
 			};
@@ -60,7 +60,7 @@ namespace Nz
 			std::vector<NodeBase*> m_orderedNodes;
 			std::vector<std::unique_ptr<NodeBase>> m_nodes;
 			entt::registry& m_registry;
-			Nz::Clock m_clock;
+			Nz::HighPrecisionClock m_clock;
 			bool m_systemOrderUpdated;
 	};
 }

include/Nazara/Core/Systems/SystemGraph.inl

@@ -32,7 +32,7 @@ namespace Nz
 	}
 
 	template<typename T>
-	void SystemGraph::Node<T>::Update(float elapsedTime)
+	void SystemGraph::Node<T>::Update(Time elapsedTime)
 	{
 		system.Update(elapsedTime);
 	}