[MIRROR] Adds the Hauntium material, which turns any item into a ghost (with AI) (#2918)

* Adds the Hauntium material, which turns any item into a ghost (with AI) (#55728)

* Adds the Hauntium material, which turns any item into a ghost (with AI)

Co-authored-by: Qustinnus <Floydje123@hotmail.com>

code/datums/elements/haunted.dm

@@ -0,0 +1,25 @@
+///Attaching this element to something will make it float, get a special ai controller, and gives it a spooky outline.
+/datum/element/haunted
+	element_flags = ELEMENT_DETACH
+
+/datum/element/haunted/Attach(datum/target)
+	. = ..()
+	if(!isitem(target))
+		return COMPONENT_INCOMPATIBLE
+	//Make em look spooky
+	var/obj/item/master = target
+	master.add_filter("haunt_glow", 2, list("type" = "outline", "color" = "#f8f8ff", "size" = 1))
+	master.ai_controller = new /datum/ai_controller/haunted(master)
+	master.AddElement(/datum/element/movetype_handler)
+	ADD_TRAIT(master, TRAIT_MOVE_FLYING, ELEMENT_TRAIT)
+
+/datum/element/haunted/Detach(datum/source, force)
+	. = ..()
+	var/atom/movable/master = source
+	master.remove_filter("haunt_glow")
+	QDEL_NULL(master.ai_controller)
+	REMOVE_TRAIT(master, TRAIT_MOVE_FLYING, ELEMENT_TRAIT)
+	master.RemoveElement(/datum/element/movetype_handler)
+	return ..()
+
+