69 lines
1.4 KiB
C++
69 lines
1.4 KiB
C++
#ifndef _CTIMING_HPP_
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#define _CTIMING_HPP_
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/*** SDL Header Files ***/
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#include <SDL.h>
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/*** DLL Header File ***/
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#include <dllExport.h>
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#define MAXIMUM_FRAME_RATE 120
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#define MINIMUM_FRAME_RATE 15
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#define UPDATE_INTERVAL (1.0 / MAXIMUM_FRAME_RATE)
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#define MAX_CYCLES_PER_FRAME (MAXIMUM_FRAME_RATE / MINIMUM_FRAME_RATE)
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namespace TimingEngine {
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/* Singleton */
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class EXPORT_FROM_MYDLL cTiming
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{
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private:
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cTiming( const unsigned long int ftp = 30 );
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~cTiming();
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public:
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cTiming& operator = ( const cTiming& copy );
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/// Functions
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static cTiming& Inst();
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static void Delete();
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const bool Initialize() const;
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/* Sets up timing */
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void Setup();
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void CleanUp();
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/* Sleeps if need */
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void Time();
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/// Sets
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void setFTP( const unsigned long int ftp = 30 );
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/// Gets
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const unsigned long int getFTP() const;
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/* Gets return true if Timer was initialized */
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const bool IsInit() const;
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const float getFrameTime() const;
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private:
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const unsigned long int TimeLeft();
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void AddTimeandRate();
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const float FrameTime();
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private:
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/// Variables
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unsigned long int m_nextTime;/// = 0
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unsigned long int m_rate;/// = (1000 / m_ftp)
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unsigned long int m_ftp;/// = 30
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static cTiming* sp_inst;/// = nullptr
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unsigned long int m_start;/// = 0
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float m_lastTime;/// = 0.0
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float m_frameTime;/// = 0.0
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};/// END CLASS DEFINITION cTiming
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}/// END NAMESPACE DEFINITION TimingEngine
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#endif/// END IFNDEF _CTIMING_HPP_
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