[isugamedev-devel] getting time from the OS (ticks)

[Ben S. <bs...@vr...>]

ok, here's how to get the current time (in ms) from the system clock:

any win32 box:
//-----------------------------------------------
#include <sys/types.h>
#include <sys/timeb.h>

struct _timeb tv;
_ftime( &tv );
double curTime = static_cast<double>( tv.time )
    + ( static_cast<double>( tv.millitm ) / 1000.0 );
cout << "Current time is: "<<curTime<<endl;


any unix flavor:
//-----------------------------------------------
#include <sys/time.h>

struct timeval tv;
gettimeofday( &tv, 0 );
double curTime = static_cast<double>( tv.tv_sec )
    + ( static_cast<double>( tv.tv_usec ) / 1000000.0 );
cout << "Current time is: "<<curTime<<endl;



//----------------------------------------------
i hope that gives you a good starting place. i basically ripped that code
off of kevin meinert's StopWatch class which you can find at:
http://cvs.sf.net/cgi-bin/viewcvs.cgi/isugamedev/tank/StopWatch.h?rev=1.7&content-type=text/vnd.viewcvs-markup

lemme know if you have any questions.

-----
Ben Scott
President ISU Game Developers Club
Treasurer ISU Ballroom Dance Company
bs...@ia...