unsigned int CCSpriteBatchNode::atlasIndexForChild(CCSprite *pobSprite, int nZ)
{
NSMutableArray<CCNode*> *pBrothers = pobSprite->getParent()->getChildren();
unsigned int uChildIndex = pBrothers->getIndexOfObject(pobSprite);
// ignore parent Z if parent is spriteSheet
bool bIgnoreParent = (CCSpriteBatchNode*)(pobSprite->getParent()) == this;
CCSprite *pPrevious = NULL;
if (uChildIndex > 0)
{
pPrevious = (CCSprite*)(pBrothers->getObjectAtIndex(uChildIndex - 1));
}
// first child of the sprite sheet
if (bIgnoreParent)
{
if (uChildIndex == 0)
{
return 0;
}
return highestAtlasIndexInChild(pPrevious) + 1;
}
// parent is a CCSprite, so, it must be taken into account
// first child of an CCSprite ?
if (uChildIndex == 0)
{
CCSprite *p = (CCSprite*)(pobSprite->getParent());
// less than parent and brothers
if (nZ < 0)
{
return p->getAtlasIndex();
}
else
{
return p->getAtlasIndex() + 1;
}
}
else
{
// previous & sprite belong to the same branch
if ((pPrevious->getZOrder() < 0 && nZ < 0) || (pPrevious->getZOrder() >= 0 && nZ >= 0))
{
return highestAtlasIndexInChild(pPrevious) + 1;
}
// else (previous < 0 and sprite >= 0 )
CCSprite *p = (CCSprite*)(pobSprite->getParent());
return p->getAtlasIndex() + 1;
}
// Should not happen. Error calculating Z on SpriteSheet
assert(0);
return 0;
}
void CCAnimate::update(cocos2d::ccTime time)
{
NSMutableArray<CCSpriteFrame*> *pFrames = m_pAnimation->getFrames();
unsigned int numberOfFrames = pFrames->count();
unsigned int idx = (unsigned int)(time * numberOfFrames);
if (idx >= numberOfFrames)
{
idx = numberOfFrames - 1;
}
CCSprite *pSprite = (CCSprite*)(m_pTarget);
if (! pSprite->isFrameDisplayed(pFrames->getObjectAtIndex(idx)))
{
pSprite->setDisplayFrame(pFrames->getObjectAtIndex(idx));
}
}
unsigned int CCSpriteBatchNode::lowestAtlasIndexInChild(CCSprite *pSprite)
{
NSMutableArray<CCNode*> *pChildren = pSprite->getChildren();
if (! pChildren || pChildren->count() == 0)
{
return pSprite->getAtlasIndex();
}
else
{
return lowestAtlasIndexInChild((CCSprite*)(pChildren->getObjectAtIndex(0)));
}
}