/**
* Removes an {@code Actor} from the {@code World}. The {@code Actor} must be both bound to this
* {@code World} and not held by another {@code Actor}. However, if the {@code Actor} is expired,
* it may always be removed.
*
* @param actor the {@code Actor} to be removed
*/
public void removeActor(Actor actor) {
Guard.argumentIsNotNull(actor);
Guard.verifyState(actor.bound(this));
Guard.verifyState(!actor.held() || actor.expired());
unregisterActor(actor);
removeFromGrid(actor);
actor.setWorld(null);
}
public void tick() {
for (Class<? extends Actor> cls : actOrder)
for (Actor actor : getActors(cls)) {
if (!actor.expired() && !actor.getClass().equals(Player.class)) {
actor.act();
}
}
removeExpired();
}