/**
* Swaps two actors. Returns false if the swap did not occur because the actors are not children
* of this group.
*/
public boolean swapActor(Actor first, Actor second) {
int firstIndex = children.indexOf(first, true);
int secondIndex = children.indexOf(second, true);
if (firstIndex == -1 || secondIndex == -1) return false;
children.swap(firstIndex, secondIndex);
return true;
}
/**
* Adds an actor as a child of this group, immediately before another child actor. The actor is
* first removed from its parent group, if any.
*/
public void addActorBefore(Actor actorBefore, Actor actor) {
actor.remove();
int index = children.indexOf(actorBefore, true);
children.insert(index, actor);
actor.setParent(this);
actor.setStage(getStage());
childrenChanged();
}
/**
* Adds an actor as a child of this group, immediately after another child actor. The actor is
* first removed from its parent group, if any.
*/
public void addActorAfter(Actor actorAfter, Actor actor) {
actor.remove();
int index = children.indexOf(actorAfter, true);
if (index == children.size) children.add(actor);
else children.insert(index + 1, actor);
actor.setParent(this);
actor.setStage(getStage());
childrenChanged();
}