ssize_t SpriteBatchNode::atlasIndexForChild(Sprite *sprite, int nZ)
{
auto& siblings = sprite->getParent()->getChildren();
auto childIndex = siblings.getIndex(sprite);
// ignore parent Z if parent is spriteSheet
bool ignoreParent = (SpriteBatchNode*)(sprite->getParent()) == this;
Sprite *prev = nullptr;
if (childIndex > 0 && childIndex != -1)
{
prev = static_cast<Sprite*>(siblings.at(childIndex - 1));
}
// first child of the sprite sheet
if (ignoreParent)
{
if (childIndex == 0)
{
return 0;
}
return highestAtlasIndexInChild(prev) + 1;
}
// parent is a Sprite, so, it must be taken into account
// first child of an Sprite ?
if (childIndex == 0)
{
Sprite *p = static_cast<Sprite*>(sprite->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 ((prev->getLocalZOrder() < 0 && nZ < 0) || (prev->getLocalZOrder() >= 0 && nZ >= 0))
{
return highestAtlasIndexInChild(prev) + 1;
}
// else (previous < 0 and sprite >= 0 )
Sprite *p = static_cast<Sprite*>(sprite->getParent());
return p->getAtlasIndex() + 1;
}
// Should not happen. Error calculating Z on SpriteSheet
CCASSERT(0, "should not run here");
return 0;
}
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;
}
ssize_t SpriteBatchNode::highestAtlasIndexInChild(Sprite *sprite)
{
auto& children = sprite->getChildren();
if (children.size() == 0)
{
return sprite->getAtlasIndex();
}
else
{
return highestAtlasIndexInChild( static_cast<Sprite*>(children.back()));
}
}
unsigned int CCSpriteBatchNode::highestAtlasIndexInChild(CCSprite *pSprite)
{
NSMutableArray<CCNode*> *pChildren = pSprite->getChildren();
if (! pChildren || pChildren->count() == 0)
{
return pSprite->getAtlasIndex();
}
else
{
return highestAtlasIndexInChild((CCSprite*)(pChildren->getLastObject()));
}
}
