Merge pull request #13871 from silicons/debris

Merry Christmas - GIVING JANITORS A JOB

code/game/area/Space_Station_13_areas.dm

@@ -41,6 +41,7 @@ NOTE: there are two lists of areas in the end of this file: centcom and station
 	power_environ = FALSE
 	valid_territory = FALSE
 	outdoors = TRUE
+	persistent_debris_allowed = FALSE
 	ambientsounds = SPACE
 	blob_allowed = FALSE //Eating up space doesn't count for victory as a blob.
 	considered_hull_exterior = TRUE

code/game/area/areas.dm

@@ -24,6 +24,10 @@
 	var/clockwork_warp_allowed = TRUE
 	/// Message to display when the clockwork warp fails
 	var/clockwork_warp_fail = "The structure there is too dense for warping to pierce. (This is normal in high-security areas.)"
+	/// Persistent debris alowed
+	var/persistent_debris_allowed = TRUE
+	/// Dirty flooring allowed
+	var/dirt_buildup_allowed = TRUE
 
 	/// If mining tunnel generation is allowed in this area
 	var/tunnel_allowed = FALSE