#include <escher/timer.h>
  
  Timer::Timer(uint32_t period) :
    m_period(period),
    m_numberOfTicksBeforeFire(period)
  {
  }
  
  bool Timer::tick() {
    m_numberOfTicksBeforeFire--;
    if (m_numberOfTicksBeforeFire == 0) {
      bool needRedraw = fire();
      reset();
      return needRedraw;
    }
    return false;
  }
  
  void Timer::reset() {
    m_numberOfTicksBeforeFire = m_period;
  }