From a336ae94203f1e462b70517fa6d54216fe6c2534 Mon Sep 17 00:00:00 2001
From: Weird Constructor <weirdconstructor@gmail.com>
Date: Sun, 24 Jul 2022 19:11:02 +0200
Subject: [PATCH] Fix find_unconnected_ports

---
 src/matrix.rs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/matrix.rs b/src/matrix.rs
index 6dd169e..21653b7 100644
--- a/src/matrix.rs
+++ b/src/matrix.rs
@@ -401,8 +401,10 @@ impl Cell {
         };
 
         for dir in options {
-            if let Some(pos) = self.is_port_dir_connected(m, *dir) {
-                unused_ports.push((*dir, pos));
+            if self.is_port_dir_connected(m, *dir).is_none() {
+                if let Some(pos) = dir.offs_pos((self.x as usize, self.y as usize)) {
+                    unused_ports.push((*dir, pos));
+                }
             }
         }