From 3219400a737ebf54188ca6958412c4d508709896 Mon Sep 17 00:00:00 2001
From: Matej Focko <mfocko@redhat.com>
Date: Fri, 9 Dec 2022 12:15:40 +0100
Subject: [PATCH] vector2d: implement subtraction of vectors

Signed-off-by: Matej Focko <mfocko@redhat.com>
---
 src/vector2d.rs | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/vector2d.rs b/src/vector2d.rs
index d89bb15..742f794 100644
--- a/src/vector2d.rs
+++ b/src/vector2d.rs
@@ -1,7 +1,7 @@
 use std::cmp::Eq;
 use std::fmt::Debug;
 use std::hash::Hash;
-use std::ops::{Add, Mul};
+use std::ops::{Add, Mul, Sub};
 
 #[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, PartialOrd, Ord)]
 pub struct Vector2D<T> {
@@ -81,6 +81,17 @@ impl<T: Add + Add<Output = U>, U> Add for Vector2D<T> {
     }
 }
 
+impl<T: Sub + Sub<Output = U>, U> Sub for Vector2D<T> {
+    type Output = Vector2D<U>;
+
+    fn sub(self, rhs: Self) -> Self::Output {
+        Vector2D {
+            x: self.x - rhs.x,
+            y: self.y - rhs.y,
+        }
+    }
+}
+
 impl<T: Mul + Mul<Output = U>, U> Mul for Vector2D<T> {
     type Output = Vector2D<U>;