http://wiki.game-develop.com/index.php?%A5%D7%A5%ED%A5%B0%A5%E9%A5%DF%A5%F3%A5%B0%2F%BD%E9%BF%B4%BC%D4%B8%FE%A4%B1%2F%A5%C1%A5%E5%A1%BC%A5%C8%A5%EA%A5%A2%A5%EB%2F%C3%CA%B3%AC%C5%AA%B3%D8%BD%AC%2FFF%C9%F7RPG%A4%F2%BA%EE%A4%EC

この通りにやればいい