public ActorNode(Actor actor, BSPNode node) {
this.actor = actor;
this.node = node;
// insert into linked list
ActorNode first = IBSPColChecker.getNodeForActor(actor);
this.next = first;
IBSPColChecker.setNodeForActor(actor, this);
if (next != null) {
next.prev = this;
}
mark = true;
}
/**
* Notify this actor node that it has been removed from the BSPNode. It must remove itself from
* the linked list of actor nodes for the actor.
*/
public void removed() {
if (prev == null) {
IBSPColChecker.setNodeForActor(actor, next);
} else {
prev.next = next;
}
if (next != null) {
next.prev = prev;
}
}