From 85499313606a157537eb1dc7fa03501196c4c7e7 Mon Sep 17 00:00:00 2001
From: Arthur van der Staaij <32672293+avdstaaij@users.noreply.github.com>
Date: Sat, 26 Jun 2021 21:43:50 +0200
Subject: [PATCH] Fixed main menu crash (#4270)

Fixed a critical bug where the game would crash when any option was
picked in the main menu.

The bug was introduced by 823e6ffc2a4d14c04a661e2e0f8c2253c0d0844a.
---
 core/src/com/unciv/models/stats/Stats.kt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/src/com/unciv/models/stats/Stats.kt b/core/src/com/unciv/models/stats/Stats.kt
index c419837eef..e0a48d9d94 100644
--- a/core/src/com/unciv/models/stats/Stats.kt
+++ b/core/src/com/unciv/models/stats/Stats.kt
@@ -119,7 +119,7 @@ open class Stats() {
         private val statRegex = Regex(statRegexPattern)
         private val entireStringRegexPattern = Regex("$statRegexPattern(, $statRegexPattern)*")
         fun isStats(string:String): Boolean {
-            if (string[0] != '+' && string[0] != '-') return false // very quick negative check before the heavy Regex
+            if (string.isEmpty() || string[0] !in "+-") return false // very quick negative check before the heavy Regex
             return entireStringRegexPattern.matches(string)
         }
         fun parse(string:String):Stats{