From fa58acb73e55103defc5153f128cdcf0bbf53420 Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Tue, 12 Sep 2023 10:58:51 +0200
Subject: add unfortunate assert

---
 src/tile.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/tile.cpp b/src/tile.cpp
index 2d658ff1..53ae88b3 100644
--- a/src/tile.cpp
+++ b/src/tile.cpp
@@ -3,6 +3,9 @@
 
 namespace floormat {
 
+// no avoiding it with rotations
+static_assert(iTILE_SIZE2.x() == iTILE_SIZE2.y());
+
 bool operator==(const tile_proto& a, const tile_proto& b) noexcept {
     return a.ground()     == b.ground() &&
            a.wall_north() == b.wall_north() &&
-- 
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