From bdb1dbcea8c4ab9270caeacf6bfb448c35824a90 Mon Sep 17 00:00:00 2001
From: Andinus <andinus@nand.sh>
Date: Thu, 4 Mar 2021 14:26:19 +0530
Subject: Mark visited gray squares with "*"

---
 lib/Octans/Puzzle.rakumod | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'lib/Octans/Puzzle.rakumod')

diff --git a/lib/Octans/Puzzle.rakumod b/lib/Octans/Puzzle.rakumod
index 731cc8e..e88a74a 100644
--- a/lib/Octans/Puzzle.rakumod
+++ b/lib/Octans/Puzzle.rakumod
@@ -17,4 +17,10 @@ class Puzzle is export {
 
     # Accessor for @!gray-squares.
     method gray-squares() { @!gray-squares; }
+
+    # Given $y, $x where $y is row index & $x is column index,
+    # is-gray-square returns if the cell is a gray square.
+    method is-gray-square(Int $y, Int $x) {
+        return so @!gray-squares.grep(($y, $x));
+    }
 }
-- 
cgit 1.4.1-2-gfad0