Game folder

code/game/objects/items/implants/implant_stealth.dm

@@ -9,11 +9,10 @@
 	name = "inconspicious box"
 	desc = "It's so normal that you didn't notice it before."
 	icon_state = "agentbox"
-	use_mob_movespeed = TRUE
+	move_speed_multiplier = 0.5
 
 /obj/structure/closet/cardboard/agent/proc/go_invisible()
 	animate(src, , alpha = 0, time = 5)
-	START_PROCESSING(SSobj, src)
 
 /obj/structure/closet/cardboard/agent/Initialize()
 	. = ..()
@@ -25,14 +24,18 @@
 	qdel(src)
 
 /obj/structure/closet/cardboard/agent/process()
-	animate(src, , alpha = alpha - 50, time = 3)
+	alpha = max(0, alpha - 50)
 
-/obj/structure/closet/cardboard/agent/Move()
-	. = ..()
-	if(.)
-		alpha = min(alpha + 5, 255)
+/obj/structure/closet/cardboard/agent/proc/reveal()
+	alpha = 255
+	addtimer(CALLBACK(src, .proc/go_invisible), 10, TIMER_OVERRIDE|TIMER_UNIQUE)
 
 /obj/structure/closet/cardboard/agent/Bump(atom/movable/A)
 	. = ..()
 	if(isliving(A))
-		alpha = 255
+		reveal()
+
+/obj/structure/closet/cardboard/agent/Bumped(atom/movable/A)
+	. = ..()
+	if(isliving(A))
+		reveal()