[READY]Component Forensics and Item Blood OverlayS!

code/game/objects/items/clown_items.dm

@@ -86,7 +86,7 @@
 			var/obj/effect/decal/cleanable/C = locate() in target
 			qdel(C)
 			target.remove_atom_colour(WASHABLE_COLOUR_PRIORITY)
-			target.clean_blood()
+			target.SendSignal(COMSIG_COMPONENT_CLEAN_ACT, CLEAN_STRENGTH_BLOOD)
 			target.wash_cream()
 	return
 

code/game/objects/items/devices/radio/intercom.dm

@@ -139,8 +139,8 @@
 		else
 			icon_state = initial(icon_state)
 
-/obj/item/device/radio/intercom/add_blood(list/blood_dna)
-	return 0
+/obj/item/device/radio/intercom/add_blood_DNA(list/blood_dna)
+	return FALSE
 
 //Created through the autolathe or through deconstructing intercoms. Can be applied to wall to make a new intercom on it!
 /obj/item/wallframe/intercom

code/game/objects/items/melee/energy.dm

@@ -20,8 +20,8 @@
 	user.visible_message("<span class='suicide'>[user] is [pick("slitting [user.p_their()] stomach open with", "falling on")] [src]! It looks like [user.p_theyre()] trying to commit seppuku!</span>")
 	return (BRUTELOSS|FIRELOSS)
 
-/obj/item/melee/transforming/energy/add_blood(list/blood_dna)
-	return 0
+/obj/item/melee/transforming/energy/add_blood_DNA(list/blood_dna)
+	return FALSE
 
 /obj/item/melee/transforming/energy/is_sharp()
 	return active * sharpness

code/game/objects/items/melee/misc.dm

@@ -284,8 +284,8 @@
 	T.ChangeTurf(T.baseturf)
 	T.CalculateAdjacentTurfs()
 
-/obj/item/melee/supermatter_sword/add_blood(list/blood_dna)
-	return 0
+/obj/item/melee/supermatter_sword/add_blood_DNA(list/blood_dna)
+	return FALSE
 
 /obj/item/melee/curator_whip
 	name = "curator's whip"

code/game/objects/items/mop.dm

@@ -23,7 +23,6 @@
 
 /obj/item/mop/proc/clean(turf/A)
 	if(reagents.has_reagent("water", 1) || reagents.has_reagent("holywater", 1) || reagents.has_reagent("vodka", 1) || reagents.has_reagent("cleaner", 1))
-		A.clean_blood()
 		A.SendSignal(COMSIG_COMPONENT_CLEAN_ACT, CLEAN_MEDIUM)
 		for(var/obj/effect/O in A)
 			if(is_cleanable(O))

code/game/objects/items/stacks/stack.dm

@@ -336,10 +336,10 @@
 	else
 		. = ..()
 
-/obj/item/stack/proc/copy_evidences(obj/item/stack/from as obj)
-	blood_DNA = from.blood_DNA
-	fingerprints  = from.fingerprints
-	fingerprintshidden  = from.fingerprintshidden
+/obj/item/stack/proc/copy_evidences(obj/item/stack/from)
+	add_blood_DNA(from.return_blood_DNA())
+	add_fingerprint_list(from.return_fingerprints())
+	add_hiddenprint_list(from.return_hiddenprints())
 	fingerprintslast  = from.fingerprintslast
 	//TODO bloody overlay
 

code/game/objects/items/storage/book.dm

@@ -213,5 +213,5 @@ GLOBAL_LIST_INIT(bibleitemstates, list("bible", "koran", "scrapbook", "bible",
 	else
 		return ..(M,user,heal_mode = FALSE)
 
-/obj/item/storage/book/bible/syndicate/add_blood(list/blood_dna)
+/obj/item/storage/book/bible/syndicate/add_blood_DNA(list/blood_dna)
 	return FALSE

code/game/objects/items/twohanded.dm

@@ -293,7 +293,7 @@
 		icon_state = "dualsaber[item_color][wielded]"
 	else
 		icon_state = "dualsaber0"
-	clean_blood()//blood overlays get weird otherwise, because the sprite changes.
+	SendSignal(COMSIG_COMPONENT_CLEAN_ACT, CLEAN_STRENGTH_BLOOD)
 
 /obj/item/twohanded/dualsaber/attack(mob/target, mob/living/carbon/human/user)
 	if(user.has_dna())