Updates the proximity monitor component (#15836)

* prox component update

* mochi review

* bug fix, makes proximity sensors always active

* GC fixes and removes an unused proc

* Disposal fixes from TM

* fixes runtimes when objects created in nullspace runtimes, fixes portable flasher

* a fresh perspective

* lewcc review

* adds comment about direct loc setting over forceMove

code/modules/assembly/bomb.dm

@@ -12,10 +12,6 @@
 	var/obj/item/tank/bombtank = null //the second part of the bomb is a plasma tank
 	origin_tech = "materials=1;engineering=1"
 
-/obj/item/onetankbomb/ComponentInitialize()
-	. = ..()
-	AddComponent(/datum/component/proximity_monitor)
-
 /obj/item/onetankbomb/examine(mob/user)
 	. = ..()
 	. += bombtank.examine(user)
@@ -41,10 +37,10 @@
 	if(!I.use_tool(src, user, 0, volume = I.tool_volume))
 		return
 	to_chat(user, "<span class='notice'>You disassemble [src].</span>")
-	bombassembly.loc = user.loc
+	bombassembly.forceMove(user.loc)
 	bombassembly.master = null
 	bombassembly = null
-	bombtank.loc = user.loc
+	bombtank.forceMove(user.loc)
 	bombtank.master = null
 	bombtank = null
 	qdel(src)
@@ -119,11 +115,11 @@
 
 	R.bombassembly = S	//Tell the bomb about its assembly part
 	S.master = R		//Tell the assembly about its new owner
-	S.loc = R			//Move the assembly out of the fucking way
+	S.forceMove(R)			//Move the assembly out of the fucking way
 
 	R.bombtank = src	//Same for tank
 	master = R
-	loc = R
+	forceMove(R)
 	R.update_icon()
 	return
 

code/modules/assembly/holder.dm

@@ -50,8 +50,6 @@
 	A2.holder = src
 	a_left = A1
 	a_right = A2
-	if(has_prox_sensors())
-		AddComponent(/datum/component/proximity_monitor)
 	name = "[A1.name]-[A2.name] assembly"
 	update_icon()
 	return TRUE
@@ -183,10 +181,10 @@
 			return FALSE
 		if(a_left)
 			a_left.holder = null
-			a_left.loc = T
+			a_left.forceMove(T)
 		if(a_right)
 			a_right.holder = null
-			a_right.loc = T
+			a_right.forceMove(T)
 		qdel(src)
 
 

code/modules/assembly/proximity.dm

@@ -15,7 +15,7 @@
 
 /obj/item/assembly/prox_sensor/ComponentInitialize()
 	. = ..()
-	AddComponent(/datum/component/proximity_monitor)
+	AddComponent(/datum/component/proximity_monitor, _always_active = TRUE)
 
 /obj/item/assembly/prox_sensor/describe()
 	if(timing)