MyGUI_ActionController.h

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/*
 * This source file is part of MyGUI. For the latest info, see http://mygui.info/
 * Distributed under the MIT License
 * (See accompanying file COPYING.MIT or copy at http://opensource.org/licenses/MIT)
 */

#ifndef __MYGUI_ACTION_CONTROLLER_H__
#define __MYGUI_ACTION_CONTROLLER_H__

#include "MyGUI_Prerequest.h"
#include "MyGUI_Types.h"
#include <math.h>

namespace MyGUI
{
    class ControllerItem;

    namespace action
    {

        void MYGUI_EXPORT actionWidgetHide(Widget* _widget, ControllerItem* _controller);

        void MYGUI_EXPORT actionWidgetShow(Widget* _widget, ControllerItem* _controller);

        void MYGUI_EXPORT actionWidgetDestroy(Widget* _widget, ControllerItem* _controller);

        void MYGUI_EXPORT linearMoveFunction(const IntCoord& _startRect, const IntCoord& _destRect, IntCoord& _result, float _k);

        template <int N>
        inline void acceleratedMoveFunction(const IntCoord& _startRect, const IntCoord& _destRect, IntCoord& _result, float _current_time)
        {
            float k = (float)pow (_current_time, N / 10.f /*3 by default as Accelerated and 0.4 by default as Slowed*/);
            linearMoveFunction(_startRect, _destRect, _result, k);
        }

        template <int N>
        inline void jumpMoveFunction(const IntCoord& _startRect, const IntCoord& _destRect, IntCoord& _result, float _current_time)
        {
            float k = pow (_current_time, 2) * (-2 - N / 10.f) + _current_time * (3 + N / 10.f);
            linearMoveFunction(_startRect, _destRect, _result, k);
        }

        void MYGUI_EXPORT inertionalMoveFunction(const IntCoord& _startRect, const IntCoord& _destRect, IntCoord& _result, float _current_time);

    } // namespace action

} // namespace MyGUI

#endif // __MYGUI_ACTION_CONTROLLER_H__