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include/engine/core/clock.h

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+/* -----------------------------------------------------------------------------
+	GSFramework
+	Copyright 2001-2013 Emmanuel Julien. All Rights Reserved.
+----------------------------------------------------------------------------- */
+
+
+#ifndef	__NCLOCK__
+#define	__NCLOCK__
+
+
+		#include "memory/nshared_ptr.h"
+		#include "container/smart_median_average.h"
+
+
+namespace GS {
+	namespace Core {
+
+/*!
+	@short	Clock
+	@author	Emmanuel Julien (ejulien@nworks.fr)
+*/
+class	Clock : public SharedObject
+{
+		bool			pause;
+		int				fixed_delta;		///< Fixed dt (ms).
+
+		int				_gtick, gtick;		///< System's global tick counter.
+		int				clock_scale;		///< System clock scale factor (x1000).
+
+		int				dt_clock;			///< Delta frame.
+		int				dt_error;
+
+		SmartMedianAverage <int> dt_clock_filter;
+
+public:
+
+		void			Reset();
+		void			Update();
+
+		void			Pause(bool = true);
+
+		/// Sync to current hardware clock (skipping unaccounted dt_clock).
+		void			EatDeltaClock();
+
+		float			Getf() const;
+		float			GetDeltaf() const;
+
+		void			SetScalef(float = 1.f);
+		float			GetScalef() const;
+
+		/// Set fixed delta clock in seconds.
+		void			SetFixedDeltaFramef(float = -1.0);
+
+		int				GetDelta() const { return dt_clock; }
+
+		void			SetScale(int k = 1000) { clock_scale = k; }
+		int				GetScale() const { return clock_scale; }
+
+		int				Get() const { return gtick; }
+
+		Clock();
+};
+
+typedef	SharedPtr <Clock> sClock;
+
+	} // Core
+} // GS
+
+
+#endif	// __NCLOCK__