return new RestrictedToNation[] {resToNation};
}
private void processAddNation(Nation nation) {
ResourceNode<FieldResourceProductionMapping> productionNode
= new ManyInManyOutResourceNode(this);
nationToResourceNode.put(nation.getID(), productionNode);
// Add an appropriate edge for each field owned by the given nation
NationReader nationReader = game.getNationReader();
Iterator<Long> nationFieldIterator = nationReader.getAllFields(nation.getID());