1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15

pub struct Tiered<T> {
    pub tier: u32,
    pub element: T,
}

pub struct Leveled<T: LevelFor> {
    pub level: u32,
    pub accumulated_xp: u32,
    pub element: T,
}

// Will usually use PartialFunction.
pub trait LevelFor {
    fn level_for_xp(&self, xp: u32) -> u32;
}