56 lines
1.1 KiB
C++
56 lines
1.1 KiB
C++
#include "..\easy2d.h"
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ActionScaleBy::ActionScaleBy(float duration, float scaleX, float scaleY) :
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Animation(duration)
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{
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m_nVariationX = scaleX;
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m_nVariationY = scaleY;
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}
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ActionScaleBy::~ActionScaleBy()
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{
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}
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void ActionScaleBy::_init()
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{
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Animation::_init();
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m_nBeginScaleX = m_pParent->getScaleX();
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m_nBeginScaleY = m_pParent->getScaleY();
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}
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bool ActionScaleBy::_exec(LARGE_INTEGER nNow)
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{
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if (m_bStop) return true;
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if (!m_bRunning) return false;
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while (Animation::_exec(nNow))
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{
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// 计算移动位置
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float scale = float(m_nDuration) / m_nTotalDuration;
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// 移动 Sprite
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m_pParent->setScale(m_nBeginScaleX + m_nVariationX * scale, m_nBeginScaleX + m_nVariationX * scale);
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// 判断动作是否结束
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if (m_nDuration >= m_nTotalDuration)
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{
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return true;
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}
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}
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return false;
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}
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void ActionScaleBy::_reset()
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{
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Animation::_reset();
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}
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ActionScaleBy * ActionScaleBy::copy()
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{
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auto a = new ActionScaleBy(*this);
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a->_reset();
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return a;
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}
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ActionScaleBy * ActionScaleBy::reverse() const
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{
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return new ActionScaleBy(m_nTotalDuration / 1000.0f, -m_nVariationX, -m_nVariationY);
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} |