Timer.h

/*
 * Copyright 2010-2014 OpenXcom Developers.
 *
 * This file is part of OpenXcom.
 *
 * OpenXcom 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.
 *
 * OpenXcom 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 OpenXcom.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef OPENXCOM_TIMER_H
#define OPENXCOM_TIMER_H

#include <SDL.h>
#include "State.h"
#include "Surface.h"

namespace OpenXcom
{

typedef void (State::* StateHandler)();
typedef void (Surface::* SurfaceHandler)();

class Timer
{
public:
    static int maxFrameSkip;
    static Uint32 gameSlowSpeed;
    
private:
    Uint32 _start;
    Uint32 _frameSkipStart;
    int _interval;
    bool _running;
    bool _frameSkipping;
    StateHandler _state;
    SurfaceHandler _surface;
public:
    Timer(Uint32 interval, bool frameSkipping = false);
    ~Timer();
    void start();
    void stop();
    Uint32 getTime() const;
    bool isRunning() const;
    void think(State* state, Surface* surface);
    void setInterval(Uint32 interval);
    void onTimer(StateHandler handler);
    void onTimer(SurfaceHandler handler);
    void setFrameSkipping(bool skip);
};

}

#endif