Cleanbot/dirt fix.

Now if a cleanbot cleans a tile, it will also set it's dirt value to 0
so a person walking back over the tile won't instantly create more dirt.

Conflicts:
	code/game/machinery/bots/cleanbot.dm

code/game/machinery/bots/cleanbot.dm

@@ -54,8 +54,8 @@
 	src.botcard = new /obj/item/weapon/card/id(src)
 	var/datum/job/janitor/J = new/datum/job/janitor
 	src.botcard.access = J.get_access()
-	
-	src.locked = 0 // Start unlocked so roboticist can set them to patrol.	
+
+	src.locked = 0 // Start unlocked so roboticist can set them to patrol.
 
 	if(radio_controller)
 		radio_controller.add_object(src, beacon_freq, filter = RADIO_NAVBEACONS)
@@ -311,16 +311,22 @@ text("<A href='?src=\ref[src];operation=oddbutton'>[src.oddbutton ? "Yes" : "No"
 		target_types += /obj/effect/decal/cleanable/dirt
 
 /obj/machinery/bot/cleanbot/proc/clean(var/obj/effect/decal/cleanable/target)
-	src.anchored = 1
-	src.icon_state = "cleanbot-c"
+	anchored = 1
+	icon_state = "cleanbot-c"
 	visible_message("\red [src] begins to clean up the [target]")
-	src.cleaning = 1
-	spawn(50)
-		src.cleaning = 0
+	cleaning = 1
+	var/cleantime = 50
+	if(istype(target,/obj/effect/decal/cleanable/dirt))		// Clean Dirt much faster
+		cleantime = 10
+	spawn(cleantime)
+		if(istype(loc,/turf/simulated))
+			var/turf/simulated/f = loc
+			f.dirt = 0
+		cleaning = 0
 		del(target)
-		src.icon_state = "cleanbot[src.on]"
-		src.anchored = 0
-		src.target = null
+		icon_state = "cleanbot[on]"
+		anchored = 0
+		target = null
 
 /obj/machinery/bot/cleanbot/explode()
 	src.on = 0
@@ -358,4 +364,4 @@ text("<A href='?src=\ref[src];operation=oddbutton'>[src.oddbutton ? "Yes" : "No"
 			return
 		if (!in_range(src, usr) && src.loc != usr)
 			return
-		src.created_name = t
+		src.created_name = t