2 // C Implementation: timer
7 // Author: Tobias Glaesser <tobi.web@gmx.de>, (C) 2004
9 // Copyright: See COPYING file that comes with this distribution
17 unsigned int st_pause_ticks, st_pause_count;
19 unsigned int st_get_ticks(void)
21 if(st_pause_count != 0)
22 return /*SDL_GetTicks()*/ - st_pause_ticks /*- SDL_GetTicks()*/ + st_pause_count;
24 return SDL_GetTicks() - st_pause_ticks;
27 void st_pause_ticks_init(void)
33 void st_pause_ticks_start(void)
35 st_pause_count = SDL_GetTicks();
38 void st_pause_ticks_stop(void)
40 if(st_pause_count == 0)
43 st_pause_ticks += SDL_GetTicks() - st_pause_count;
47 void timer_init(timer_type* ptimer, bool st_ticks)
51 ptimer->get_ticks = st_ticks ? st_get_ticks : SDL_GetTicks;
54 void timer_start(timer_type* ptimer, unsigned int period)
56 ptimer->time = ptimer->get_ticks();
57 ptimer->period = period;
60 void timer_stop(timer_type* ptimer)
62 if(ptimer->get_ticks == st_get_ticks)
63 timer_init(ptimer,true);
65 timer_init(ptimer,false);
68 int timer_check(timer_type* ptimer)
70 if((ptimer->time != 0) && (ptimer->time + ptimer->period > ptimer->get_ticks()))
79 int timer_started(timer_type* ptimer)
87 int timer_get_left(timer_type* ptimer)
89 return (ptimer->period - (ptimer->get_ticks() - ptimer->time));
92 int timer_get_gone(timer_type* ptimer)
94 return (ptimer->get_ticks() - ptimer->time);
97 void timer_fwrite(timer_type* ptimer, FILE* fi)
99 unsigned int diff_ticks;
101 if(ptimer->time != 0)
102 diff_ticks = ptimer->get_ticks() - ptimer->time;
106 fwrite(&ptimer->period,sizeof(unsigned int),1,fi);
107 fwrite(&diff_ticks,sizeof(unsigned int),1,fi);
108 if(ptimer->get_ticks == st_get_ticks)
112 fwrite(&tick_mode,sizeof(unsigned int),1,fi);
115 void timer_fread(timer_type* ptimer, FILE* fi)
117 unsigned int diff_ticks;
119 fread(&ptimer->period,sizeof(unsigned int),1,fi);
120 fread(&diff_ticks,sizeof(unsigned int),1,fi);
121 fread(&tick_mode,sizeof(unsigned int),1,fi);
124 ptimer->get_ticks = st_get_ticks;
126 ptimer->get_ticks = SDL_GetTicks;
129 ptimer->time = ptimer->get_ticks() - diff_ticks;