50 lines
953 B
C++
50 lines
953 B
C++
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#include "..\eactions.h"
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e2d::ActionOpacityBy::ActionOpacityBy(float duration, float opacity) :
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Animation(duration)
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{
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m_nVariation = opacity;
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}
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e2d::ActionOpacityBy::~ActionOpacityBy()
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{
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}
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void e2d::ActionOpacityBy::_init()
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{
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Animation::_init();
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m_nBeginVal = m_pTarget->getOpacity();
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}
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void e2d::ActionOpacityBy::_exec()
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{
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while (Animation::_isDelayEnough())
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{
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// <20><><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD>λ<EFBFBD><CEBB>
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float scale = static_cast<float>(m_nDuration) / m_nTotalDuration;
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// <20>ƶ<EFBFBD> Sprite
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m_pTarget->setOpacity(m_nBeginVal + m_nVariation * scale);
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// <20>ж϶<D0B6><CFB6><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD>
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if (_isEnd())
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{
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this->stop();
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break;
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}
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}
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}
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void e2d::ActionOpacityBy::_reset()
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{
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Animation::_reset();
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}
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e2d::ActionOpacityBy * e2d::ActionOpacityBy::copy() const
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{
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return new ActionOpacityBy(m_nAnimationInterval / 1000.0f, m_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(m_nTotalDuration / 1000.0f, -m_nVariation);
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}
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