From: ShadowNinja <noreply@gmail.com>
Date: Sun, 7 Jul 2013 06:02:45 +0000 (-0400)
Subject: Handle 0 vectors in vector.normalize()
X-Git-Tag: 0.4.8~341
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=07715b1b6adbdaeaa3f72591297ad59b443a0d9c;p=oweals%2Fminetest.git

Handle 0 vectors in vector.normalize()
---

diff --git a/builtin/vector.lua b/builtin/vector.lua
index f534471c2..839f139ca 100644
--- a/builtin/vector.lua
+++ b/builtin/vector.lua
@@ -31,7 +31,12 @@ function vector.length(v)
 end
 
 function vector.normalize(v)
-	return vector.divide(v, vector.length(v))
+	local len = vector.length(v)
+	if len == 0 then
+		return vector.new()
+	else
+		return vector.divide(v, len)
+	end
 end
 
 function vector.round(v)