Cortical Borer Fixes (#18760)

* borer fixes

* Update code/modules/mob/living/simple_mob/subtypes/animal/borer/borer_powers.dm

Co-authored-by: Cameron Lennox <killer65311@gmail.com>

* corrections

* foundation cleanups

* utility procs

* some fixes

* assorted fixes

* tweaks

* reorganizing

* not needed

* ghost cleanup

* organization

* motion tracker fix

* yet more cleanup

* logging

* cache rounding

---------

Co-authored-by: Cameron Lennox <killer65311@gmail.com>

code/game/objects/items/devices/scanners/health.dm

@@ -268,7 +268,7 @@
 		dat += "<br>"
 //	if (M.reagents && M.reagents.get_reagent_amount(REAGENT_ID_INAPROVALINE))
 //		user.show_message(span_notice("Bloodstream Analysis located [M.reagents:get_reagent_amount(REAGENT_ID_INAPROVALINE)] units of rejuvenation chemicals."))
-	if (M.has_brain_worms())
+	if (advscan >= 2 && M.has_brain_worms()) // Borers need to hide
 		dat += span_warning("Subject suffering from aberrant brain activity. Recommend further scanning.")
 		dat += "<br>"
 	else if (M.getBrainLoss() >= 60 || !M.has_brain())

code/game/objects/items/devices/scanners/motion_tracker.dm

@@ -19,11 +19,14 @@
 /obj/item/motiontracker/Initialize(mapload)
 	RegisterSignal(SSmotiontracker, COMSIG_MOVABLE_MOTIONTRACKER, PROC_REF(handle_motion_tracking))
 	. = ..()
+	if(ismob(loc))
+		var/mob/M = loc
+		M.motiontracker_subscribe()
 
 /obj/item/motiontracker/Destroy(force, ...)
 	if(ismob(loc))
 		var/mob/M = loc
-		M.motiontracker_subscribe()
+		M.motiontracker_unsubscribe()
 	UnregisterSignal(SSmotiontracker, COMSIG_MOVABLE_MOTIONTRACKER)
 	. = ..()