Tick-based time ?

Hey,

I'm writing a tick-based game ( a game that develops in realtime ). However, the program won't be running 24/7, but I still want it to develop as if that number of hours had gone by when it is launched again. Is there a useful function that can access the computer's internal clock, or something of the sort ? Thanks.

This should get you started:

Code:

---

#include <ctime>

using namespace std;

int main (int argc, char** argv)
{
  time_t rawtime;
  struct tm * timeinfo;

  time ( &rawtime );
  timeinfo = localtime ( &rawtime );

  // Manipulate timeinfo
  return 0;
}

---

You should store rawtime each time the game is run, and retrieve it once the user starts the game again. Once you read in this value, feed it into a tm struct (like shown above) and manipulate its members. tm struct reference: http://www.cplusplus.com/ref/ctime/tm.html

Thanks for the structure, I found it in time.h, but couldn't make any sense of it.

A few questions :

1. time_t is typedefed as a long *, therefore time_t rawtime; creates a long * with name rawtime, correct ?

2. What's the pointer to a structure for, and how is it used ?

3. What's the function time(___) do, and what would time(&rawtime) do ?

4. What's the localtime function ?


Sorry about this, but I can't make any sense of it from time.h, and the explanations I found on some websites just don't help :(