/** Searches for the first occurrence of value and removes it. If value is not found the function has no effect.
@since v0.99.4
*/
void ccCArrayRemoveValue(ccCArray *arr, void* value)
{
unsigned int index = ccCArrayGetIndexOfValue(arr, value);
if (index != CC_INVALID_INDEX)
{
ccCArrayRemoveValueAtIndex(arr, index);
}
}
void TMXLayer::removeChild(Node* node, bool cleanup)
{
Sprite *sprite = (Sprite*)node;
// allows removing nil objects
if (! sprite)
{
return;
}
CCASSERT(_children.contains(sprite), "Tile does not belong to TMXLayer");
ssize_t atlasIndex = sprite->getAtlasIndex();
ssize_t zz = (ssize_t)_atlasIndexArray->arr[atlasIndex];
_tiles[zz] = 0;
ccCArrayRemoveValueAtIndex(_atlasIndexArray, atlasIndex);
SpriteBatchNode::removeChild(sprite, cleanup);
}
void TMXLayer::removeTileAt(const Point& pos)
{
CCASSERT(pos.x < _layerSize.width && pos.y < _layerSize.height && pos.x >=0 && pos.y >=0, "TMXLayer: invalid position");
CCASSERT(_tiles && _atlasIndexArray, "TMXLayer: the tiles map has been released");
int gid = getTileGIDAt(pos);
if (gid)
{
int z = pos.x + pos.y * _layerSize.width;
ssize_t atlasIndex = atlasIndexForExistantZ(z);
// remove tile from GID map
_tiles[z] = 0;
// remove tile from atlas position array
ccCArrayRemoveValueAtIndex(_atlasIndexArray, atlasIndex);
// remove it from sprites and/or texture atlas
Sprite *sprite = (Sprite*)getChildByTag(z);
if (sprite)
{
SpriteBatchNode::removeChild(sprite, true);
}
else
{
_textureAtlas->removeQuadAtIndex(atlasIndex);
// update possible children
for(const auto &obj : _children) {
Sprite* child = static_cast<Sprite*>(obj);
ssize_t ai = child->getAtlasIndex();
if ( ai >= atlasIndex )
{
child->setAtlasIndex(ai-1);
}
}
}
}
}