private void despawnNPCs() {
Iterator<NPC> itr = npcRegistry.iterator();
while (itr.hasNext()) {
NPC npc = itr.next();
npc.despawn();
for (Trait t : npc.getTraits()) t.onRemove();
itr.remove();
}
}
@Override
public boolean isInternalTrait(Trait trait) {
return INTERNAL_TRAITS.contains(trait.getName());
}