private void nodeToWorldTransform(CGAffineTransform ret) {
ret.setTransform(nodeToParentTransform());
for (CCNode p = parent_; p != null; p = p.parent_) {
CGAffineTransformUtil.preConcate(ret, p.nodeToParentTransform());
}
}
/**
* Returns the inverse local affine transform matrix
*
* @since v0.7.1
*/
public CGAffineTransform parentToNodeTransform() {
if (isInverseDirty_) {
CGAffineTransformUtil.inverse(nodeToParentTransform(), inverse_);
isInverseDirty_ = false;
}
return inverse_;
}
/** This is analog method, result is written to ret. No garbage. */
private void worldToNodeTransform(CGAffineTransform ret) {
nodeToWorldTransform(ret);
CGAffineTransformUtil.inverse(ret);
}