src/supertux/timer.cpp

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//  SuperTux
//  Copyright (C) 2006 Matthias Braun <matze@braunis.de>
//
//  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 3 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.  If not, see <http://www.gnu.org/licenses/>.

#include <math.h>

#include "supertux/timer.hpp"

Timer::Timer() :
  period(0), 
cycle_start(0), 
  cyclic(false)
{
}

Timer::~Timer()
{
}

void
Timer::start(float period, bool cyclic)
{
  this->period = period;
  this->cyclic = cyclic;
  cycle_start = game_time;
}

bool
Timer::check()
{
  if(period == 0)
    return false;

  if(game_time - cycle_start >= period) {
    if(cyclic) {
      cycle_start = game_time - fmodf(game_time - cycle_start, period);
    } else {
      period = 0;
    }
    return true;
  }

  return false;
}

/* EOF */

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