From b3684c7ec6c61992f8208bd0b304a535161f03b9 Mon Sep 17 00:00:00 2001
From: Heroman3003 <31296024+Heroman3003@users.noreply.github.com>
Date: Thu, 23 Feb 2023 13:31:54 +1000
Subject: [PATCH] Merge pull request #14530 from Seris02/dirtnotspace

prevents persistent dirt (and other filth) from spawning in spess and walls
---
 code/modules/persistence/effects/filth_vr.dm | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/code/modules/persistence/effects/filth_vr.dm b/code/modules/persistence/effects/filth_vr.dm
index deea9cb877..34733d4bc8 100644
--- a/code/modules/persistence/effects/filth_vr.dm
+++ b/code/modules/persistence/effects/filth_vr.dm
@@ -4,6 +4,8 @@
 
 /datum/persistent/filth/CreateEntryInstance(var/turf/creating, var/list/token)
 	var/_path = token["path"]
+	if (isspace(creating) || iswall(creating) ||isopenspace(creating))
+		return
 	if (saves_dirt)
 		new _path(creating, token["age"]+1, token["dirt"])
 	else