@Override
public MagicSet evaluate(GameState state, Identified thisObject) {
MagicSet allAttackers = Attacking.get(state);
if (this.what == null) return allAttackers;
Set<Integer> beingAttackedIDs = new HashSet<Integer>();
MagicSet evaluateWhat = this.what.evaluate(state, thisObject);
for (GameObject o : evaluateWhat.getAll(GameObject.class))
if (o.getTypes().contains(Type.PLANESWALKER)) beingAttackedIDs.add(o.ID);
for (Player p : evaluateWhat.getAll(Player.class)) beingAttackedIDs.add(p.ID);
Set<GameObject> attackingThisPlayer = allAttackers.getAll(GameObject.class);
Iterator<GameObject> objectIterator = attackingThisPlayer.iterator();
while (objectIterator.hasNext()) {
GameObject attacker = objectIterator.next();
if (!beingAttackedIDs.contains(attacker.getAttackingID())) objectIterator.remove();
}
return new MagicSet(attackingThisPlayer);
}
public static MagicSet get(GameState state) {
MagicSet ret = new MagicSet();
for (GameObject o : state.battlefield()) if (-1 != o.getAttackingID()) ret.add(o);
return ret;
}