40 lines
732 B
C++
40 lines
732 B
C++
#include "..\e2daction.h"
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e2d::ActionOpacityBy::ActionOpacityBy(double duration, double opacity) :
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ActionGradual(duration)
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{
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_nVariation = opacity;
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}
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void e2d::ActionOpacityBy::_init()
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{
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ActionGradual::_init();
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if (_pTarget)
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{
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_nBeginVal = _pTarget->getOpacity();
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}
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}
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void e2d::ActionOpacityBy::_update()
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{
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ActionGradual::_update();
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if (_pTarget == nullptr)
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{
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this->stop();
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return;
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}
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// ÉèÖýڵã͸Ã÷¶È
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_pTarget->setOpacity(_nBeginVal + _nVariation * _fRateOfProgress);
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}
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e2d::ActionOpacityBy * e2d::ActionOpacityBy::clone() const
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{
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return new ActionOpacityBy(_fDuration, _nVariation);
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}
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e2d::ActionOpacityBy * e2d::ActionOpacityBy::reverse() const
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{
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return new ActionOpacityBy(_fDuration, -_nVariation);
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} |