pixelfoo-apps/src/vec2d.rs
2018-12-02 14:21:59 +01:00

62 lines
1.1 KiB
Rust

use std::ops::Add;
#[derive(Clone, Copy, Debug)]
pub struct Vec2d {
pub x: i32,
pub y: i32,
}
impl Vec2d {
pub fn new(x: i32, y: i32) -> Vec2d {
Vec2d { x, y }
}
pub fn directions() -> Vec<Vec2d> {
vec![v2d(1, 0), v2d(0, 1), v2d(-1, 0), v2d(0, -1)]
}
}
pub fn v2d(x: i32, y: i32) -> Vec2d {
Vec2d::new(x, y)
}
impl Add for Vec2d {
type Output = Vec2d;
fn add(self, other: Vec2d) -> Vec2d {
let x = self.x + other.x;
let y = self.y + other.y;
Vec2d { x, y }
}
}
impl<'a> Add<&'a Vec2d> for Vec2d {
type Output = Vec2d;
fn add(self, other: &'a Vec2d) -> Vec2d {
let x = self.x + other.x;
let y = self.y + other.y;
Vec2d { x, y }
}
}
impl<'a> Add<Vec2d> for &'a Vec2d {
type Output = Vec2d;
fn add(self, other: Vec2d) -> Vec2d {
let x = self.x + other.x;
let y = self.y + other.y;
Vec2d { x, y }
}
}
impl<'a> Add<&'a Vec2d> for &'a Vec2d {
type Output = Vec2d;
fn add(self, other: &'a Vec2d) -> Vec2d {
let x = self.x + other.x;
let y = self.y + other.y;
Vec2d { x, y }
}
}