fps.H

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#ifndef FPS_H_IS_INCLUDED
#define FPS_H_IS_INCLUDED

#include "std/stop_watch.H"
#include "disp/gel.H"
#include "geom/text2d.H"

/*****************************************************************
 * FPS:
 *
 *      Displays frames per second in lower left of window.
 *****************************************************************/
MAKE_PTR_SUBC(FPS, FRAMEobs);
class FPS : public FRAMEobs {
  public:

   //******** MANAGERS ********
   FPS();

   //******** FRAMEobs VIRTUAL METHODS ********
   int tick(void);

  protected:
   TEXT2Dptr    _text;          // text that is displayed
   unsigned int _last_display;  // VIEW::stamp() when last updated
   stop_watch   _clock;         // clock measuring time since update
};

#endif // FPS_H_IS_INCLUDED

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