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/*
* UltraStar Deluxe - Karaoke Game
*
* UltraStar Deluxe is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "time.hpp"
#include <SDL/SDL.h>
#define SDL_CORRECTION_RATIO 1000
namespace usdx
{
Time::Time(void)
{
}
float Time::get_time()
{
return SDL_GetTicks() / SDL_CORRECTION_RATIO;
}
/*
* RelativeTimer
*/
/*
* creates a new timer.
* if triggermode is false (default), the timer
* will immediately begin with counting.
* if triggermode is true, it will wait until get/settime() or pause() is called
* for the first time.
*/
RelativeTimer::RelativeTimer(bool trigger_mode)
{
this->trigger_mode = trigger_mode;
reset();
this->paused = false;
}
void RelativeTimer::pause(void)
{
relative_time_offset = get_time();
paused = true;
}
void RelativeTimer::resume(void)
{
absolute_time = SDL_GetTicks();
paused = false;
}
/*
* Returns the counter of the timer.
* If in TriggerMode it will return 0 and start the counter on the first call.
*/
float RelativeTimer::get_time(void)
{
// initialize absolute time on first call in triggered mode
if (trigger_mode && (absolute_time == 0))
{
absolute_time = SDL_GetTicks();
return relative_time_offset;
}
if (paused)
return relative_time_offset;
return relative_time_offset + (SDL_GetTicks() - absolute_time) / SDL_CORRECTION_RATIO;
}
/*
* Returns the counter of the timer and resets the counter to 0 afterwards.
* Note: In TriggerMode the counter will not be stopped as with Reset().
*/
float RelativeTimer::get_and_reset_time(void)
{
float result = get_time();
set_time(0);
return result;
}
/*
* Sets the timer to the given time. This will trigger in TriggerMode if
* Trigger is set to true. Otherwise the counter's state will not change.
*/
void RelativeTimer::set_time(float time, bool trigger)
{
relative_time_offset = time;
if (!trigger_mode || trigger)
absolute_time = SDL_GetTicks();
}
/*
* Resets the counter of the timer to 0.
* If in TriggerMode the timer will not start counting until it is triggered again.
*/
void RelativeTimer::reset(void)
{
relative_time_offset = 0;
if (trigger_mode)
absolute_time = 0;
else
absolute_time = SDL_GetTicks();
}
}
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