From c8afa3f6991a57bb17e89e317b2eec320350148c Mon Sep 17 00:00:00 2001
From: Noel Berry <thenberry@gmail.com>
Date: Sun, 9 Jan 2022 14:32:50 -0800
Subject: [PATCH] Vec2::normal accounts for zero-length

---
 include/blah/numerics/spatial.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/blah/numerics/spatial.h b/include/blah/numerics/spatial.h
index a5bfd8b..c62073b 100644
--- a/include/blah/numerics/spatial.h
+++ b/include/blah/numerics/spatial.h
@@ -456,6 +456,8 @@ namespace Blah
 	template<class T>
 	Vec2<T> Vec2<T>::normal() const {
 		auto len = std::sqrt(x * x + y * y);
+		if (len <= 0)
+			return Vec2<T>(0, 0);
 		return Vec2(x / len, y / len);
 	}