[READY] Gives Stacking Machines and their consoles machine boards (#37607)

* patch-2

* does everything on the TODO list

FUCK YEAH
*breaks up the engineering node design ID's for readability
*linking the device via multitool is possible
*The machinery construction "recipes" are less shit and make a bit more sense

* coil

* did somebody say RUNTIMES?

*fixed runtimes when there is no link on the stacking machine console
*added feedback for unlinked consoles
*it's -> its
*proper typecheck

* achieved with [src]

code/modules/mining/machine_stacking.dm

@@ -7,20 +7,23 @@
 	desc = "Controls a stacking machine... in theory."
 	density = FALSE
 	anchored = TRUE
-	var/obj/machinery/mineral/stacking_machine/machine = null
+	circuit = /obj/item/circuitboard/machine/stacking_unit_console
+	var/obj/machinery/mineral/stacking_machine/machine
 	var/machinedir = SOUTHEAST
-	speed_process = TRUE
 
 /obj/machinery/mineral/stacking_unit_console/Initialize()
 	. = ..()
 	machine = locate(/obj/machinery/mineral/stacking_machine, get_step(src, machinedir))
 	if (machine)
 		machine.CONSOLE = src
-	else
-		qdel(src)
 
 /obj/machinery/mineral/stacking_unit_console/ui_interact(mob/user)
 	. = ..()
+
+	if(!machine)
+		to_chat(user, "<span class='notice'>[src] is not linked to a machine!</span>")
+		return
+
 	var/obj/item/stack/sheet/s
 	var/dat
 
@@ -35,6 +38,13 @@
 
 	user << browse(dat, "window=console_stacking_machine")
 
+/obj/machinery/mineral/stacking_unit_console/multitool_act(mob/living/user, obj/item/I)
+	if(istype(I, /obj/item/multitool))
+		var/obj/item/multitool/M = I
+		M.buffer = src
+		to_chat(user, "<span class='notice'>You store linkage information in [I]'s buffer.</span>")
+		return TRUE
+
 /obj/machinery/mineral/stacking_unit_console/Topic(href, href_list)
 	if(..())
 		return
@@ -62,6 +72,7 @@
 	desc = "A machine that automatically stacks acquired materials. Controlled by a nearby console."
 	density = TRUE
 	anchored = TRUE
+	circuit = /obj/item/circuitboard/machine/stacking_machine
 	var/obj/machinery/mineral/stacking_unit_console/CONSOLE
 	var/stk_types = list()
 	var/stk_amt   = list()
@@ -78,6 +89,18 @@
 	if(istype(AM, /obj/item/stack/sheet) && AM.loc == get_step(src, input_dir))
 		process_sheet(AM)
 
+/obj/machinery/mineral/stacking_machine/multitool_act(mob/living/user, obj/item/I)
+	if(istype(I, /obj/item/multitool))
+		var/obj/item/multitool/M = I
+		if(!istype(M.buffer, /obj/machinery/mineral/stacking_unit_console))
+			to_chat(user, "<span class='warning'>The [I] has no linkage data in its buffer.</span>")
+			return FALSE
+		else
+			CONSOLE = M.buffer
+			CONSOLE.machine = src
+			to_chat(user, "<span class='notice'>You link [src] to the console in [I]'s buffer.</span>")
+			return TRUE
+
 /obj/machinery/mineral/stacking_machine/proc/process_sheet(obj/item/stack/sheet/inp)
 	if(!(inp.type in stack_list)) //It's the first of this sheet added
 		var/obj/item/stack/sheet/s = new inp.type(src, 0)