include/cFrameLimiter.hpp

/*
*   SPACE Engine. A 2D game Engine.
*   Copyright (C) 2010  Christoph Ehlen.
*
*   This program is free software: you can redistribute it and/or modify
*   it under the terms of the GNU General Public License as published by
*   the Free Software Foundation, either version 3 of the License, or
*   (at your option) any later version.
*
*   This program is distributed in the hope that it will be useful,
*   but WITHOUT ANY WARRANTY; without even the implied warranty of
*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
*   GNU General Public License for more details.
*
*   You should have received a copy of the GNU General Public License
*   along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef CFRAMELIMITER_HPP_INCLUDED
#define CFRAMELIMITER_HPP_INCLUDED

#undef AFX_EXT_CLASS
#undef AFX_EXT_API
#undef AFX_EXT_DATA
#define AFX_EXT_CLASS       AFX_CLASS_IMPORT
#define AFX_EXT_API         AFX_API_IMPORT
#define AFX_EXT_DATA        AFX_DATA_IMPORT

#include <SDL.h>

#undef AFX_EXT_CLASS
#undef AFX_EXT_API
#undef AFX_EXT_DATA
#define AFX_EXT_CLASS       AFX_CLASS_EXPORT
#define AFX_EXT_API         AFX_API_EXPORT
#define AFX_EXT_DATA        AFX_DATA_EXPORT


#include "start_code.hpp"
#include "SINGLETON.hpp"

#define g_pcFrameLimiter cFrameLimiter::Get() 
namespace SPACE
{
    namespace Core
    {
        class DLL_EXPORT cFrameLimiter : public TSingleton<cFrameLimiter>
        {
            public:
                cFrameLimiter();
                ~cFrameLimiter();

                /* Updates the Time. */
                //void Update();

                /* Get the time in Secons the since last Frame.
                * \return The Time elapsed since the last frame
                */
                //float GetElapsed();

                bool LimitFrameRate(bool _Limit, unsigned int _Fps = 0);

                void Limit();
            private:
                // Save the time
                Uint32 m_CurTime;     
                Uint32 m_LastTime;    
                // Handle Framerate
                bool m_bLimitFrame;         
                float m_TimePerFrame;       
                unsigned int m_FrameNumber; 
                Uint32 m_TargetTime;        
        };
    }
}

#endif // CTIMER_HPP_INCLUDED

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