ddgClock Include File

/*
    Copyright (C) 1997, 1998, 1999, 2000 by Alex Pfaffe
        (Digital Dawn Graphics Inc)
  
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
  
    This library 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
    Library General Public License for more details.
  
    You should have received a copy of the GNU Library General Public
    License along with this library; if not, write to the Free
    Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _ddgClock_Class_
#define _ddgClock_Class_

#include "util/ddgstr.h"

#define ddgFPSBUFSIZE   16

class WEXP ddgClock
{
    float  _time;                       
    float  _elapsed;
    float  _sysfactor;
    float  _simfactor;
    float  _simstart;
        unsigned long _prev;
    unsigned int _frame;
        unsigned int _totalFrame;
        unsigned int _totalTime;
        unsigned int _minTime;
        unsigned int _maxTime;
        float _fpsbuf[ddgFPSBUFSIZE];
        int _fpsidx;
        float _fpstotal;
public:
    ddgClock( float init = 0.0);
    float update(void);
    void set(int t) { _time = t / _sysfactor; }
    float getSysTime(void) { return _time * _sysfactor; }
    float getElapsed(void) { return _elapsed * _sysfactor; }
    float getFrameRate(void);
        float getAvgFrameRate(void);

    // Return the simulated time where one system second is _simfactor seconds.
    // The return values is the fractional number of days elapsed.
    // If h is given, h returns the number of hours and returned days are rounded.
    // If m is given, m returns the number of minutes and h is rounded.
    // If s is given, s returns the number of seconds and m is rounded.
    float getSimTime(float *h = 0, float *m = 0, float *s = 0, float *r = 0);
        void start( float t) { _simstart = t; }
        void simfactor( float f ) { _simfactor = f; }
        float getDayLight(void);

        void perf( unsigned int tf ) { _totalFrame = tf-1; }
        bool perfDump( ddgStr *filename = NULL, char *s = NULL );
        static void timeStamp( ddgStr *timestamp );
};
#endif
ddgclock.h
