//  $Id: dummy_scroller.hpp 3059 2007-09-02 03:48:52Z grumbel $
//
//  Pingus - A free Lemmings clone
//  Copyright (C) 2000 Ingo Ruhnke <grumbel@gmx.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 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; if not, write to the Free Software
//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

#ifndef HEADER_PINGUS_INPUT_DUMMY_SCROLLER_HXX
#define HEADER_PINGUS_INPUT_DUMMY_SCROLLER_HXX

#include "../scroller.hpp"

namespace Input {
namespace Scrollers {

/**
   @brief dummy class to be used if an Scroller is required but none defined

   XML definition: none
*/
class DummyScroller : public Scroller {
private:
  const float delta;

public:

  DummyScroller () : delta(0) { }

  const float& get_x_delta () const { return delta; }
  const float& get_y_delta () const { return delta; }

  void  get_delta (float& x_delta, float& y_delta) const { x_delta = delta; y_delta = delta; }

  void  update (float) { }

private:
  DummyScroller (const DummyScroller&);
  DummyScroller& operator= (const DummyScroller&);
};

} // namespace Scrollers
} // namespace Input

#endif

/* EOF */