dungeon_crawler: prototype/src/timer.cc annotate

dungeon_crawler

start work on particle systems

author	John Tsiombikas <nuclear@member.fsf.org>
date	Wed, 29 Aug 2012 03:22:36 +0300
parents
children	45172d087ebe

rev	line source
nuclear@38	1 #include <chrono>
nuclear@38	2 #include "timer.h"
nuclear@38	3
nuclear@38	4 using namespace std::chrono;
nuclear@38	5
nuclear@38	6 static bool timer_initialized;
nuclear@38	7 static time_point<steady_clock> start_time;
nuclear@38	8
nuclear@38	9 unsigned long get_time_msec(void)
nuclear@38	10 {
nuclear@38	11 if(!timer_initialized) {
nuclear@38	12 start_time = steady_clock::now();
nuclear@38	13 timer_initialized = true;
nuclear@38	14 }
nuclear@38	15
nuclear@38	16 auto dur = steady_clock::now() - start_time;
nuclear@38	17 return duration_cast<milliseconds>(dur).count();
nuclear@38	18 }