-//
-// C Implementation: timer
-//
-// Description:
-//
-//
-// Author: Tobias Glaesser <tobi.web@gmx.de>, (C) 2004
-//
-// Copyright: See COPYING file that comes with this distribution
-//
-//
+#include <config.h>
-#include "SDL.h"
-#include "defines.h"
+#include <math.h>
#include "timer.h"
-unsigned int st_pause_ticks, st_pause_count;
+float global_time = 0;
-unsigned int st_get_ticks(void)
+Timer2::Timer2()
+ : period(0), cycle_start(0), cyclic(false)
{
- if(st_pause_count != 0)
- return SDL_GetTicks() - st_pause_ticks - SDL_GetTicks() + st_pause_count;
- else
- return SDL_GetTicks() - st_pause_ticks;
}
-void st_pause_ticks_init(void)
+Timer2::~Timer2()
{
- st_pause_ticks = 0;
- st_pause_count = 0;
}
-void st_pause_ticks_start(void)
+void
+Timer2::start(float period, bool cyclic)
{
- st_pause_count = SDL_GetTicks();
+ this->period = period;
+ this->cyclic = cyclic;
+ cycle_start = global_time;
}
-void st_pause_ticks_stop(void)
+bool
+Timer2::check()
{
- st_pause_ticks += SDL_GetTicks() - st_pause_count;
- st_pause_count = 0;
-}
-
-void timer_init(timer_type* ptimer, int st_ticks)
-{
- ptimer->period = 0;
- ptimer->time = 0;
-
- if(st_ticks == YES)
- ptimer->get_ticks = st_get_ticks;
- else
- ptimer->get_ticks = SDL_GetTicks;
-
-}
-
-void timer_start(timer_type* ptimer, unsigned int period)
-{
- ptimer->time = ptimer->get_ticks();
- ptimer->period = period;
-}
-
-void timer_stop(timer_type* ptimer)
-{
- if(ptimer->get_ticks == st_get_ticks)
- timer_init(ptimer,YES);
- else
- timer_init(ptimer,NO);
-}
-
-int timer_check(timer_type* ptimer)
-{
- if((ptimer->time != 0) && (ptimer->time + ptimer->period > ptimer->get_ticks()))
- return YES;
- else
- {
- ptimer->time = 0;
- return NO;
+ if(period == 0)
+ return false;
+
+ if(global_time - cycle_start >= period) {
+ if(cyclic) {
+ cycle_start = global_time - fmodf(global_time - cycle_start, period);
+ } else {
+ period = 0;
}
-}
-
-int timer_started(timer_type* ptimer)
-{
- if(ptimer->time != 0)
- return YES;
- else
- return NO;
-}
-
-int timer_get_left(timer_type* ptimer)
-{
- return (ptimer->period - (ptimer->get_ticks() - ptimer->time));
-}
-
-int timer_get_gone(timer_type* ptimer)
-{
- return (ptimer->get_ticks() - ptimer->time);
-}
-
-int timer_fwrite(timer_type* ptimer, FILE* fi)
-{
- unsigned int diff_ticks;
- int tick_mode;
- if(ptimer->time != 0)
- diff_ticks = ptimer->get_ticks() - ptimer->time;
- else
- diff_ticks = 0;
-
- fwrite(&ptimer->period,sizeof(unsigned int),1,fi);
- fwrite(&diff_ticks,sizeof(unsigned int),1,fi);
- if(ptimer->get_ticks == st_get_ticks)
- tick_mode = YES;
- else
- tick_mode = NO;
- fwrite(&tick_mode,sizeof(unsigned int),1,fi);
-}
-
-int timer_fread(timer_type* ptimer, FILE* fi)
-{
- unsigned int diff_ticks;
- int tick_mode;
- fread(&ptimer->period,sizeof(unsigned int),1,fi);
- fread(&diff_ticks,sizeof(unsigned int),1,fi);
- fread(&tick_mode,sizeof(unsigned int),1,fi);
- if(tick_mode == YES)
- ptimer->get_ticks = st_get_ticks;
- else
- ptimer->get_ticks = SDL_GetTicks;
- if(diff_ticks != 0)
- ptimer->time = ptimer->get_ticks() - diff_ticks;
- else
- ptimer->time = 0;
+ return true;
+ }
+ return false;
}