Adds Contaminant Detector HUD (#15970)

code/game/objects/effects/decals/Cleanable/humans.dm

@@ -193,6 +193,7 @@ var/global/list/image/splatter_cache=list()
 
 	icon = blood
 	cut_overlays()
+	add_overlay(janhud)
 	add_overlay(giblets)
 
 /obj/effect/decal/cleanable/blood/gibs/up

code/game/objects/effects/decals/Cleanable/tracks.dm

@@ -130,6 +130,7 @@ var/global/list/image/fluidtrack_cache=list()
 
 /obj/effect/decal/cleanable/blood/tracks/update_icon()
 	cut_overlays()
+	add_overlay(janhud)
 	color = "#FFFFFF"
 	var/truedir=0
 

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

@@ -12,6 +12,7 @@ generic_filth = TRUE means when the decal is saved, it will be switched out for
 	var/generic_filth = FALSE
 	var/age = 0
 	var/list/random_icon_states = list()
+	var/list/janhud = list()
 
 /obj/effect/decal/cleanable/Initialize(var/mapload, var/_age)
 	if(!isnull(_age))
@@ -20,10 +21,13 @@ generic_filth = TRUE means when the decal is saved, it will be switched out for
 		src.icon_state = pick(src.random_icon_states)
 	if(!mapload || !config.persistence_ignore_mapload)
 		SSpersistence.track_value(src, /datum/persistent/filth)
+	janhud += gen_hud_image(ingame_hud, src, "janhud[rand(1,9)]", plane = PLANE_JANHUD)
+	add_overlay(janhud)
 	. = ..()
 
 /obj/effect/decal/cleanable/Destroy()
 	SSpersistence.forget_value(src, /datum/persistent/filth)
+	cut_overlays()
 	. = ..()
 
 /obj/effect/decal/cleanable/clean_blood(var/ignore = 0)

code/game/objects/items/robot/robot_items.dm

@@ -59,6 +59,12 @@
 	icon_state = "material"
 	icon = 'icons/inventory/eyes/item.dmi'
 
+/obj/item/borg/sight/janitor
+	name = "\proper contaminant detector vision"
+	sight_mode = BORGJAN
+	icon_state = "janhud"
+	icon = 'icons/inventory/eyes/item.dmi'
+
 /obj/item/borg/sight/anomalous
 	name = "\proper anomaly vision"
 	sight_mode = BORGANOMALOUS

code/game/objects/items/weapons/storage/belt.dm

@@ -485,7 +485,8 @@
 		/obj/item/taperoll,
 		/obj/item/weapon/reagent_containers/spray,
 		/obj/item/weapon/soap,
-		/obj/item/device/lightreplacer //VOREStation edit
+		/obj/item/device/lightreplacer,
+		/obj/item/clothing/glasses/hud/janitor
 		)
 
 /obj/item/weapon/storage/belt/archaeology

code/game/objects/random/mapping.dm

@@ -915,6 +915,7 @@
 				/obj/item/clothing/head/soft/purple,
 				/obj/item/weapon/storage/belt/janitor,
 				/obj/item/clothing/shoes/galoshes,
+				/obj/item/clothing/glasses/hud/janitor,
 				/obj/item/weapon/storage/bag/trash,
 				/obj/item/device/lightreplacer,
 				/obj/item/weapon/reagent_containers/spray/cleaner,
@@ -1193,6 +1194,7 @@
 				/obj/item/clothing/head/soft/purple,
 				/obj/item/weapon/storage/belt/janitor,
 				/obj/item/clothing/shoes/galoshes,
+				/obj/item/clothing/glasses/hud/janitor,
 				/obj/item/weapon/storage/bag/trash,
 				/obj/item/device/lightreplacer,
 				/obj/item/weapon/reagent_containers/spray/cleaner,

code/game/objects/structures/crates_lockers/closets/job_closets.dm

@@ -80,7 +80,8 @@
 		/obj/item/device/lightreplacer,
 		/obj/item/weapon/storage/bag/trash,
 		/obj/item/weapon/storage/belt/janitor,
-		/obj/item/clothing/shoes/galoshes
+		/obj/item/clothing/shoes/galoshes,
+		/obj/item/clothing/glasses/hud/janitor
 		)
 
 /*