Method reparent

scene/main/node.cpp:2042–2086

}

void Node::reparent(Node *p_parent, bool p_keep_global_transform) {
	ERR_THREAD_GUARD
	ERR_FAIL_NULL(p_parent);
	ERR_FAIL_NULL_MSG(data.parent, "Node needs a parent to be reparented.");
	ERR_FAIL_COND_MSG(p_parent == this, vformat("Can't reparent '%s' to itself.", p_parent->get_name()));

	if (p_parent == data.parent) {
		return;
	}

	bool preserve_owner = data.owner && (data.owner == p_parent || data.owner->is_ancestor_of(p_parent));
	Node *owner_temp = data.owner;
	LocalVector<Node *> common_parents;

	// If the new parent is related to the owner, find all children of the reparented node who have the same owner so that we can reassign them.
	if (preserve_owner) {
		LocalVector<Node *> to_visit;

		to_visit.push_back(this);
		common_parents.push_back(this);

		while (to_visit.size() > 0) {
			Node *check = to_visit[to_visit.size() - 1];
			to_visit.resize(to_visit.size() - 1);

			for (int i = 0; i < check->get_child_count(false); i++) {
				Node *child = check->get_child(i, false);
				to_visit.push_back(child);
				if (child->data.owner == owner_temp) {
					common_parents.push_back(child);
				}
			}
		}
	}

	data.parent->remove_child(this);
	p_parent->add_child(this);

	// Reassign the old owner to those found nodes.
	if (preserve_owner) {
		for (Node *E : common_parents) {
			E->set_owner(owner_temp);
		}
	}
}

Node *Node::get_parent() const {
	return data.parent;