controlling game speed

Im making a snake game and i need some help figuring out how to control the snake speed, and make it the same speed on all machines. i want the snake to move a couple times every second, or something like that, but i need a function to measure time less than 1 second. i think i could then test the time twice, subtract them, and see if the diff is a certain amount and if it is move the snake. does this sound about right. thanks for the help
Jesse

yup.. sounds right.

have a look at time(), GetTime(), timeGetTime(), or functions similar to that. if you're using windows you could even set a time to go off every half second to update the snake position.. there are quite a few ways of doing this.

hope that helps!
U.

i tried time(), and it will only return whole seconds, it looks like gettime() does the same, only w/ hour min, sec, and i couldn't find any info on timegettime()
can some help me out some more?

timeGetTime() returns the number of milliseconds (as a DWORD)since Windows started. You need to include <mmsystem.h> and link to winmm.lib. Here's an example:

Code:

---

DWORD StartTime=0, EndTime=0;

//in your loop
EndTime=timeGetTime();
if(EndTime-StartTime>1000)
{
  //do stuff
  StartTime=EndTime; //reset start time variable
}

---

What header is timeGetTime() in? I'm pretty sure it's time.h, right?

It's in the windows multimedia headers. You'll also need to link to the multimedia library. Following code will do both..

#include <windows.h>

#pragma comment( lib, "winmm.lib" )

EDIT: Alternatively, if you don't want to use the pre-processor directive, you can link to the winmm.lib under project settings.