From 31b75bd2bd0460cf028b984ec20ba9ae67798c06 Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Sun, 5 Aug 2018 14:08:52 +0200
Subject: [PATCH] fixed a crash bug when enabling an irregular tiling multiple
 times

---
 irregular.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/irregular.cpp b/irregular.cpp
index e5a893ff..4c60b775 100644
--- a/irregular.cpp
+++ b/irregular.cpp
@@ -872,6 +872,8 @@ bool load_map(const string &fname) {
   }
 
 void cancel_map_creation() {
+  base = NULL;
+  runlevel = 0;
   popScreen();
   gridmaking = false;
   stop_game();