From d9a50737ae38bc8cf3f7ea35119d2f4d3339f37c Mon Sep 17 00:00:00 2001
From: deltanedas <39013340+deltanedas@users.noreply.github.com>
Date: Sun, 24 Nov 2024 08:49:31 +0000
Subject: [PATCH] fix exped caves generation (#32890)

Co-authored-by: deltanedas <@deltanedas:kde.org>
---
 .../Procedural/DungeonJob/DungeonJob.PostGenWallMount.cs    | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Content.Server/Procedural/DungeonJob/DungeonJob.PostGenWallMount.cs b/Content.Server/Procedural/DungeonJob/DungeonJob.PostGenWallMount.cs
index afc7608d64..d5c8587ea9 100644
--- a/Content.Server/Procedural/DungeonJob/DungeonJob.PostGenWallMount.cs
+++ b/Content.Server/Procedural/DungeonJob/DungeonJob.PostGenWallMount.cs
@@ -20,7 +20,11 @@ public sealed partial class DungeonJob
         }
 
         var tileDef = _prototype.Index(tileProto);
-        data.SpawnGroups.TryGetValue(DungeonDataKey.WallMounts, out var spawnProto);
+        if (!data.SpawnGroups.TryGetValue(DungeonDataKey.WallMounts, out var spawnProto))
+        {
+            // caves can have no walls
+            return;
+        }
 
         var checkedTiles = new HashSet<Vector2i>();
         var allExterior = new HashSet<Vector2i>(dungeon.CorridorExteriorTiles);