From a8e903ccb799367e7e33bca11e705ba87dfd5d91 Mon Sep 17 00:00:00 2001
From: Justin Lin <justin.sdk@gmail.com>
Date: Fri, 4 Mar 2022 21:01:23 +0800
Subject: [PATCH] refactor

---
 src/experimental/_impl/_tiles_wfc_impl.scad | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/experimental/_impl/_tiles_wfc_impl.scad b/src/experimental/_impl/_tiles_wfc_impl.scad
index ac0abc2f..c9cb1a2b 100644
--- a/src/experimental/_impl/_tiles_wfc_impl.scad
+++ b/src/experimental/_impl/_tiles_wfc_impl.scad
@@ -1,4 +1,3 @@
-use <util/flat.scad>;
 use <util/has.scad>;
 use <util/rand.scad>;
 use <util/some.scad>;
@@ -13,7 +12,7 @@ use <util/set/hashset_has.scad>;
 
 function weights_of_tiles(sample) = 
     let(
-	    symbols = flat(sample),
+	    symbols = [for(row = sample) each row],
 		leng = len(symbols)
 	)
     _weights_of_tiles(hashmap(number_of_buckets = leng), symbols, leng);