You'll see that this is exactly the same condition, only in the no-director condition they just have to remember to apply this somewhat arbitrary rule, whereas in the director condition, they have to remember to take into account the director's perspective in order to guide their ongoing behavior.
全く同じ設定ですね ただ ディレクタなしの場合は 何だか恣意的な ルールを与えられて ディレクタがいる設定では 彼の視点について考えることを忘れずに 次の動きを決めなければいけません