From 1c3f8ac36a75c577671f60867409efa3a6514e6e Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Mon, 18 Dec 2017 21:33:11 +0100
Subject: [PATCH] fixed eupattern in EuclidA4

---
 pattern2.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pattern2.cpp b/pattern2.cpp
index 5730b08b..ae72b224 100644
--- a/pattern2.cpp
+++ b/pattern2.cpp
@@ -7,7 +7,7 @@ int eupattern(cell *c) {
     if(torus) return (decodeId(c->master)*2) % 3;
     eucoord x, y;
     decodeMaster(c->master, x, y);
-    return ((x&1) - (y&1)) % 3;
+    return ((x&1) + 2*(y&1)) % 3;
     }
   if(torus) return (decodeId(c->master)*2) % 3;
   eucoord x, y;