wew

code/controllers/configuration/entries/persistence.dm

@@ -0,0 +1,17 @@
+/// Whether or not to use the persistence system for cleanable objects
+/datum/config_entry/flag/persistent_debris
+	config_entry_value = FALSE
+
+/// Whether or not to nuke all roundstart debris that isn't due to persistence if the above is true
+/datum/config_entry/flag/persistent_debris_only
+	config_entry_value = TRUE
+
+/// Max amount of objects to store, total
+/datum/config_entry/number/persistent_debris_global_max
+	config_entry_value = 10000
+	integer = TRUE
+
+/// Max amount of objects to store per type
+/datum/config_entry/number/persistent_debris_type_max
+	config_entry_value = 2000
+	integer = TRUE

code/controllers/subsystem/persistence/_persistence.dm

@@ -67,6 +67,7 @@ SUBSYSTEM_DEF(persistence)
 	LoadChiselMessages()
 	LoadPhotoPersistence()
 	LoadRandomizedRecipes()
+	LoadPaintings()
 
 /**
  * Saves persistent data relevant to the game in general: Trophies, antag reputation, etc
@@ -247,8 +248,6 @@ SUBSYSTEM_DEF(persistence)
 /datum/controller/subsystem/persistence/proc/SaveChiselMessage(obj/structure/chisel_message/M)
 	saved_messages += list(M.pack()) // dm eats one list
 
-
-
 /datum/controller/subsystem/persistence/proc/CollectAntagReputation()
 	var/ANTAG_REP_MAXIMUM = CONFIG_GET(number/antag_rep_maximum)
 

code/controllers/subsystem/persistence/cleanable_debris.dm

@@ -0,0 +1,3 @@
+/**
+ * Persistence for cleanable debris.
+ */

code/game/objects/effects/decals/cleanable.dm

@@ -1,6 +1,9 @@
 /obj/effect/decal/cleanable
 	gender = PLURAL
 	layer = ABOVE_NORMAL_TURF_LAYER
+	/// Is this kind of cleanable decal persistent
+	var/persistent = FALSE
+
 	var/list/random_icon_states = null
 	var/blood_state = "" //I'm sorry but cleanable/blood code is ass, and so is blood_DNA
 	var/bloodiness = 0 //0-100, amount of blood in this decal, used for making footprints and affecting the alpha of bloody footprints
@@ -9,6 +12,8 @@
 
 /obj/effect/decal/cleanable/Initialize(mapload, list/datum/disease/diseases)
 	. = ..()
+	if(mapload && persistent && CONFIG_GET(flag/persistent_debris_only))
+		return INITIALIZE_HINT_QDEL
 	LAZYINITLIST(blood_DNA) //Kinda needed
 	if (random_icon_states && (icon_state == initial(icon_state)) && length(random_icon_states) > 0)
 		icon_state = pick(random_icon_states)
@@ -29,6 +34,18 @@
 
 	addtimer(CALLBACK(src, /datum.proc/_AddElement, list(/datum/element/beauty, beauty)), 0)
 
+/**
+ * Returns a list of data
+ */
+/obj/effect/decal/cleanable/proc/PersistenceSave()
+	return null
+
+/**
+ * Laods from a data list.
+ */
+/obj/effect/decal/cleanable/proc/PersistenceLoad(list/data)
+	return
+
 /obj/effect/decal/cleanable/proc/replace_decal(obj/effect/decal/cleanable/C) // Returns true if we should give up in favor of the pre-existing decal
 	if(mergeable_decal)
 		qdel(C)