symmetric_easing.hpp

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/*
  CLAW - a C++ Library Absolutely Wonderful

  CLAW is a free library without any particular aim but being useful to 
  anyone.

  Copyright (C) 2005-2011 Julien Jorge

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library 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
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  contact: julien.jorge@gamned.org
*/
#ifndef __CLAW_TWEEN_SYMMETRIC_EASING_HPP__
#define __CLAW_TWEEN_SYMMETRIC_EASING_HPP__

namespace claw
{
  namespace tween
  {
    template<double (*Function)(double)>
    class symmetric_easing
    {
    public:
      static double ease_in( double t );
      static double ease_out( double t );
      static double ease_in_out( double t );

    }; // class symmetric_easing

  } // namespace tween
} // namespace claw

#include "claw/tween/easing/impl/symmetric_easing.tpp"

#endif // __CLAW_TWEEN_SYMMETRIC_EASING_HPP__