50 lines
970 B
C++
50 lines
970 B
C++
#include "..\eactions.h"
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e2d::EActionOpacityBy::EActionOpacityBy(float duration, float opacity) :
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EAnimation(duration)
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{
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m_nVariation = opacity;
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}
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e2d::EActionOpacityBy::~EActionOpacityBy()
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{
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}
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void e2d::EActionOpacityBy::_init()
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{
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EAnimation::_init();
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m_nBeginVal = m_pTarget->getOpacity();
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}
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void e2d::EActionOpacityBy::_exec()
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{
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while (EAnimation::_isDelayEnough())
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{
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// 计算移动位置
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float scale = static_cast<float>(m_nDuration) / m_nTotalDuration;
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// 移动 Sprite
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m_pTarget->setOpacity(m_nBeginVal + m_nVariation * scale);
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// 判断动作是否结束
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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::EActionOpacityBy::_reset()
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{
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EAnimation::_reset();
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}
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e2d::EActionOpacityBy * e2d::EActionOpacityBy::copy() const
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{
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return new EActionOpacityBy(m_nAnimationInterval / 1000.0f, m_nVariation);
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}
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e2d::EActionOpacityBy * e2d::EActionOpacityBy::reverse() const
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{
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return new EActionOpacityBy(m_nTotalDuration / 1000.0f, -m_nVariation);
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} |