[Rust] Character class

pub struct Character {
    // Creature become a member of Character
   creature: Creature,

   // Other field omitted.
}

impl Character {
    pub fn new() -> Character {
       let c = Creature::new();
       Character{ creature: c }
    }
}

impl Priority for Character {
    fn get_priority(&self) -> i32 {
        self.creature.get_priority()
    }

    fn set_priority(&mut self, value: i32) {
        self.creature.set_priority(value);
    }
}