From 66fc40845b86ba1219139ba5f2d346a49fb0447e Mon Sep 17 00:00:00 2001
From: Richard Davey <rdavey@gmail.com>
Date: Tue, 17 Oct 2017 04:18:29 +0100
Subject: [PATCH] Defaults y to x if not given

---
 v3/src/math/Vector2.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/v3/src/math/Vector2.js b/v3/src/math/Vector2.js
index 42ea57175..2976b563c 100644
--- a/v3/src/math/Vector2.js
+++ b/v3/src/math/Vector2.js
@@ -16,6 +16,8 @@ var Vector2 = new Class({
         }
         else
         {
+            if (y === undefined) { y = x; }
+
             this.x = x || 0;
             this.y = y || 0;
         }