#ifdef __cplusplus
extern "C" {
#endif
#ifndef _TIMER_H
#define _TIMER_H
/* This file defines a simple timer struct, and methods to initialize it,
and keep track of time elapsed.
It was copied from https://github.com/raysan5/raylib/wiki/Frequently-Asked-Questions#how-do-i-make-a-timer */

typedef struct Timer {
    double start_time;   // Start time (seconds)
    double lifetime;    // Lifetime (seconds)
} Timer;

Timer timer_init(double lifetime_secs)
{
    Timer timer;
    timer.start_time = GetTime();
    timer.lifetime = lifetime_secs;
    
    return timer;
}

bool timer_done(Timer timer)
{
    return GetTime() - timer.start_time >= timer.lifetime;
}

double timer_get_elapsed(Timer timer)
{
    return GetTime() - timer.start_time;
}

#endif
#ifdef __cplusplus
}
#endif