From 9850f019db346ff3d9c381d572a5f923661507e0 Mon Sep 17 00:00:00 2001
From: Justin Lin <justin.sdk@gmail.com>
Date: Sat, 23 Jan 2021 22:33:49 +0800
Subject: [PATCH] add seed param

---
 src/experimental/2_edge_wang_tiles.scad | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/src/experimental/2_edge_wang_tiles.scad b/src/experimental/2_edge_wang_tiles.scad
index d399bb4f..1327a9c3 100644
--- a/src/experimental/2_edge_wang_tiles.scad
+++ b/src/experimental/2_edge_wang_tiles.scad
@@ -1,9 +1,17 @@
-module 2_edge_wang_tiles(rows, columns, tile_width) {
-	edges = [
+module 2_edge_wang_tiles(rows, columns, tile_width, seed) {
+	edges = is_undef(seed) ? [
 		for(y = [0:rows])
 		[
 			for(x = [0:columns]) 
-			[round(rands(0, 1, 1)[0]), round(rands(0, 1, 1)[0])]
+			let(rs = rands(0, 1, 2))
+			[round(rs[0]), round(rs[1])]
+		]
+	] : [
+		for(y = [0:rows])
+		[
+			for(x = [0:columns]) 
+			let(rs = rands(0, 1, 2, 10 + y * columns + x))
+			[round(rs[0]), round(rs[1])]
 		]
 	];