// ======================================================
// A general-purpose countdown timer
// To use this class, specialize it
// and override tick()
//
// ======================================================

#ifndef timer_H
#define timer_H

#include <ctime>

class Timer {
  public:
    Timer();

    void timeoutRequest(int seconds);

    // template method
    void tick();

  protected:
    bool isExpired();

  private:
    virtual void doExpired() = 0;

    int timeToGo;
};

#endif