75 lines
2.8 KiB
C
75 lines
2.8 KiB
C
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/*!
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@file
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@author Albert Semenov
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@date 01/2008
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*/
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/*
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This file is part of MyGUI.
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MyGUI is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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MyGUI is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with MyGUI. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __MYGUI_ACTION_CONTROLLER_H__
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#define __MYGUI_ACTION_CONTROLLER_H__
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#include "MyGUI_Prerequest.h"
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#include "MyGUI_Types.h"
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#include <math.h>
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namespace MyGUI
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{
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namespace action
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{
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/** Function used for hiding widget with one of controller event */
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void MYGUI_EXPORT actionWidgetHide(Widget* _widget);
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/** Function used for showing widget with one of controller event */
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void MYGUI_EXPORT actionWidgetShow(Widget* _widget);
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/** Function used for destroying widget with one of controller event */
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void MYGUI_EXPORT actionWidgetDestroy(Widget* _widget);
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/** Function for ControllerPosition per frame action : Move with constant speed */
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void MYGUI_EXPORT linearMoveFunction(const IntCoord& _startRect, const IntCoord& _destRect, IntCoord& _result, float _k);
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/** Function for ControllerPosition per frame action : Move with accelerated speed
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if N == 10 then this function is same as linearMoveFunction
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if N > 10 speed will be increasing
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if N < 10 speed will be decreasing
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*/
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template <int N>
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inline void acceleratedMoveFunction(const IntCoord& _startRect, const IntCoord& _destRect, IntCoord& _result, float _current_time)
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{
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float k = (float)pow (_current_time, N / 10.f /*3 by default as Accelerated and 0.4 by default as Slowed*/);
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linearMoveFunction(_startRect, _destRect, _result, k);
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}
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/** Function for ControllerPosition per frame action : Move with accelerated speed a bit farther than necessary and then return it back */
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template <int N>
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inline void jumpMoveFunction(const IntCoord& _startRect, const IntCoord& _destRect, IntCoord& _result, float _current_time)
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{
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float k = pow (_current_time, 2) * (-2 - N / 10.f) + _current_time * (3 + N / 10.f);
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linearMoveFunction(_startRect, _destRect, _result, k);
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}
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/** Function for ControllerPosition per frame action : Start with zero speed increasing half time and then decreasing to zero */
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void MYGUI_EXPORT inertionalMoveFunction(const IntCoord& _startRect, const IntCoord& _destRect, IntCoord& _result, float _current_time);
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} // namespace action
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} // namespace MyGUI
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#endif // __MYGUI_ACTION_CONTROLLER_H__
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