lithium/lithium-utils/src/lib.rs

use std::ops::{Add, Sub};

pub struct Vector2 {
    pub x: f32,
    pub y: f32,
}

impl Default for Vector2 {
    fn default() -> Self {
        Self { x: 0_f32, y: 0_f32 }
    }
}

impl Vector2 {
    pub fn new(x: f32, y: f32) -> Self {
        Self { x, y }
    }
}

pub struct Vector3 {
    pub x: f32,
    pub y: f32,
    pub z: f32,
}

impl Default for Vector3 {
    fn default() -> Self {
        Self {
            x: 0_f32,
            y: 0_f32,
            z: 0_f32,
        }
    }
}

impl Add for Vector3 {
    type Output = Self;
    fn add(self, rhs: Self) -> Self::Output {
        Self::Output {
            x: self.x + rhs.x,
            y: self.y + rhs.y,
            z: self.z + rhs.z,
        }
    }
}

impl Sub for Vector3 {
    type Output = Vector3;
    fn sub(self, rhs: Self) -> Self::Output {
        Self::Output {
            x: self.x - rhs.x,
            y: self.y - rhs.y,
            z: self.z - rhs.z,
        }
    }
}

impl Vector3 {
    pub fn new(x: f32, y: f32, z: f32) -> Self {
        Self { x, y, z }
    }
}