From: Joshua Simmons <josh@nega.tv>
Date: Sun, 11 Sep 2022 14:01:51 +0000 (+0200)
Subject: Add `normalized` function to vectors
X-Git-Url: https://git.nega.tv//gitweb.cgi?a=commitdiff_plain;h=bf2959a2be237d441a6bfadb3157cb8f917f415b;p=josh%2Fnarcissus

Add `normalized` function to vectors
---

diff --git a/narcissus-maths/src/lib.rs b/narcissus-maths/src/lib.rs
index c2fc7b3..3193cd3 100644
--- a/narcissus-maths/src/lib.rs
+++ b/narcissus-maths/src/lib.rs
@@ -230,6 +230,13 @@ macro_rules! impl_vector {
             pub fn length_sq(self) -> $t {
                 Self::dot(self, self)
             }
+
+            /// Returns a vector with the same direction as `self` but with unit (1.0) length.
+            #[must_use]
+            #[inline]
+            pub fn normalized(self) -> $name {
+                self / self.length()
+            }
         }
 
         impl std::ops::Neg for $name {