Destroy tweaks.

Ports Destroy() proc tweaks from Paradise and /tg/, sourced from https://github.com/ParadiseSS13/Paradise/pull/2091.
Adds returns in Destroy()s, to prepare for future return values.

code/_onclick/hud/screen_objects.dm

@@ -16,7 +16,7 @@
 
 /obj/screen/Destroy()
 	master = null
-	..()
+	return ..()
 
 /obj/screen/text
 	icon = null

code/datums/wires/wires.dm

@@ -46,6 +46,10 @@ var/list/wireColours = list("red", "blue", "green", "darkred", "orange", "brown"
 			var/list/wires = same_wires[holder_type]
 			src.wires = wires // Reference the wires list.
 
+/datum/wires/Destroy()
+	holder = null
+	return ..()
+
 /datum/wires/proc/GenerateWires()
 	var/list/colours_to_pick = wireColours.Copy() // Get a copy, not a reference.
 	var/list/indexes_to_pick = list()

code/game/machinery/alarm.dm

@@ -101,10 +101,9 @@
 
 /obj/machinery/alarm/Destroy()
 	unregister_radio(src, frequency)
-	if(wires)
-		qdel(wires)
-		wires = null
-	..()
+	qdel(wires)
+	wires = null
+	return ..()
 
 /obj/machinery/alarm/New(var/loc, var/dir, var/building = 0)
 	..()

code/game/machinery/autolathe.dm

@@ -37,6 +37,11 @@
 	component_parts += new /obj/item/weapon/stock_parts/manipulator(src)
 	component_parts += new /obj/item/weapon/stock_parts/console_screen(src)
 	RefreshParts()
+	
+/obj/machinery/autolathe/Destroy()
+	qdel(wires)
+	wires = null
+	return ..()
 
 /obj/machinery/autolathe/proc/update_recipe_list()
 	if(!machine_recipes)

code/game/machinery/bots/mulebot.dm

@@ -77,10 +77,13 @@
 		name = "Mulebot ([suffix])"
 
 /obj/machinery/bot/mulebot/Destroy()
+	unload(0)
+	qdel(wires)
+	wires = null
 	if(radio_controller)
 		radio_controller.remove_object(src,beacon_freq)
 		radio_controller.remove_object(src,control_freq)
-	..()
+	return ..()
 
 // attack by item
 // emag : lock/unlock,

code/game/machinery/camera/camera.dm

@@ -59,7 +59,8 @@
 		qdel(assembly)
 		assembly = null
 	qdel(wires)
-	..()
+	wires = null
+	return ..()
 
 /obj/machinery/camera/emp_act(severity)
 	if(!isEmpProof())
@@ -303,7 +304,7 @@
 	var/turf/pos = get_turf(src)
 	if(!pos)
 		return list()
-	
+
 	if(isXRay())
 		see = range(view_range, pos)
 	else

code/game/machinery/doors/airlock.dm

@@ -1041,10 +1041,9 @@ About the new airlock wires panel:
 				break
 
 /obj/machinery/door/airlock/Destroy()
-	if(wires)
-		qdel(wires)
-		wires = null
-	..()
+	qdel(wires)
+	wires = null
+	return ..()
 
 // Most doors will never be deconstructed over the course of a round,
 // so as an optimization defer the creation of electronics until

code/game/machinery/kitchen/smartfridge.dm

@@ -35,7 +35,8 @@
 
 /obj/machinery/smartfridge/Destroy()
 	qdel(wires)
-	..()
+	wires = null
+	return ..()
 
 /obj/machinery/smartfridge/proc/accept_check(var/obj/item/O as obj)
 	if(istype(O,/obj/item/weapon/reagent_containers/food/snacks/grown/) || istype(O,/obj/item/seeds/))

code/game/machinery/status_display.dm

@@ -49,7 +49,7 @@
 /obj/machinery/status_display/Destroy()
 	if(radio_controller)
 		radio_controller.remove_object(src,frequency)
-	..()
+	return ..()
 
 // register for radio system
 /obj/machinery/status_display/initialize()

code/game/machinery/suit_storage_unit.dm

@@ -617,7 +617,7 @@
 /obj/machinery/suit_cycler/Destroy()
 	qdel(wires)
 	wires = null
-	..()
+	return ..()
 
 /obj/machinery/suit_cycler/engineering
 	name = "Engineering suit cycler"

code/game/machinery/vending.dm

@@ -148,7 +148,7 @@
 	wires = null
 	qdel(coin)
 	coin = null
-	..()
+	return ..()
 
 /obj/machinery/vending/ex_act(severity)
 	switch(severity)

code/game/objects/items/devices/radio/headset.dm

@@ -33,7 +33,7 @@
 	qdel(keyslot2)
 	keyslot1 = null
 	keyslot2 = null
-	..()
+	return ..()
 
 /obj/item/device/radio/headset/list_channels(var/mob/user)
 	return list_secure_channels()

code/game/objects/items/devices/radio/radio.dm

@@ -32,7 +32,6 @@ var/global/list/default_medbay_channels = list(
 	var/frequency = PUB_FREQ //common chat
 	var/traitor_frequency = 0 //tune to frequency to unlock traitor supplies
 	var/canhear_range = 3 // the range which mobs can hear this radio from
-	var/obj/item/device/radio/patch_link = null
 	var/datum/wires/radio/wires = null
 	var/b_stat = 0
 	var/broadcasting = 0
@@ -71,7 +70,7 @@ var/global/list/default_medbay_channels = list(
 		radio_controller.remove_object(src, frequency)
 		for (var/ch_name in channels)
 			radio_controller.remove_object(src, radiochannels[ch_name])
-	..()
+	return ..()
 
 
 /obj/item/device/radio/initialize()

code/game/objects/items/weapons/explosives.dm

@@ -18,6 +18,11 @@
 	wires = new(src)
 	image_overlay = image('icons/obj/assemblies.dmi', "plastic-explosive2")
 	..()
+	
+/obj/item/weapon/plastique/Destroy()
+	qdel(wires)
+	wires = null
+	return ..()
 
 /obj/item/weapon/plastique/attackby(var/obj/item/I, var/mob/user)
 	if(istype(I, /obj/item/weapon/screwdriver))

code/game/objects/items/weapons/grenades/smokebomb.dm

@@ -8,27 +8,32 @@
 	slot_flags = SLOT_BELT
 	var/datum/effect/effect/system/smoke_spread/bad/smoke
 
-	New()
-		..()
-		src.smoke = PoolOrNew(/datum/effect/effect/system/smoke_spread/bad)
-		src.smoke.attach(src)
+/obj/item/weapon/grenade/smokebomb/New()
+	..()
+	src.smoke = PoolOrNew(/datum/effect/effect/system/smoke_spread/bad)
+	src.smoke.attach(src)
 
-	prime()
-		playsound(src.loc, 'sound/effects/smoke.ogg', 50, 1, -3)
-		src.smoke.set_up(10, 0, usr.loc)
-		spawn(0)
-			src.smoke.start()
-			sleep(10)
-			src.smoke.start()
-			sleep(10)
-			src.smoke.start()
-			sleep(10)
-			src.smoke.start()
+/obj/item/weapon/grenade/smokebomb/Destroy()
+	qdel(smoke)
+	smoke = null
+	return ..()
 
-		for(var/obj/effect/blob/B in view(8,src))
-			var/damage = round(30/(get_dist(B,src)+1))
-			B.health -= damage
-			B.update_icon()
-		sleep(80)
-		qdel(src)
-		return
+/obj/item/weapon/grenade/smokebomb/prime()
+	playsound(src.loc, 'sound/effects/smoke.ogg', 50, 1, -3)
+	src.smoke.set_up(10, 0, usr.loc)
+	spawn(0)
+		src.smoke.start()
+		sleep(10)
+		src.smoke.start()
+		sleep(10)
+		src.smoke.start()
+		sleep(10)
+		src.smoke.start()
+
+	for(var/obj/effect/blob/B in view(8,src))
+		var/damage = round(30/(get_dist(B,src)+1))
+		B.health -= damage
+		B.update_icon()
+	sleep(80)
+	qdel(src)
+	return

code/modules/clothing/spacesuits/rig/rig.dm

@@ -160,7 +160,11 @@
 			M.drop_from_inventory(piece)
 		qdel(piece)
 	processing_objects -= src
-	..()
+	qdel(wires)
+	wires = null
+	qdel(spark_system)
+	spark_system = null
+	return ..()
 
 /obj/item/weapon/rig/proc/suit_is_deployed()
 	if(!istype(wearer) || src.loc != wearer || wearer.back != src)

code/modules/mob/living/silicon/robot/robot.dm

@@ -214,7 +214,9 @@
 		mmi = null
 	if(connected_ai)
 		connected_ai.connected_robots -= src
-	..()
+	qdel(wires)
+	wires = null
+	return ..()
 
 /mob/living/silicon/robot/proc/set_module_sprites(var/list/new_sprites)
 	module_sprites = new_sprites.Copy()

code/modules/power/apc.dm

@@ -170,21 +170,19 @@
 	area.power_equip = 0
 	area.power_environ = 0
 	area.power_change()
-	if(wires)
-		qdel(wires)
-		wires = null
+	qdel(wires)
+	wires = null
+	qdel(terminal)
+	terminal = null
 	if(cell)
-		cell.loc = loc
+		cell.forceMove(loc)
 		cell = null
-	if(terminal)
-		qdel(terminal)
-		terminal = null
 
 	// Malf AI, removes the APC from AI's hacked APCs list.
 	if((hacker) && (hacker.hacked_apcs) && (src in hacker.hacked_apcs))
 		hacker.hacked_apcs -= src
 
-	..()
+	return ..()
 
 /obj/machinery/power/apc/proc/make_terminal()
 	// create a terminal object at the same position as original turf loc
@@ -468,7 +466,7 @@
 			return
 
 		user.drop_item()
-		W.loc = src
+		W.forceMove(src)
 		cell = W
 		user.visible_message(\
 			"<span class='warning'>[user.name] has inserted the power cell to [src.name]!</span>",\

code/modules/power/port_gen.dm

@@ -127,7 +127,7 @@
 
 /obj/machinery/power/port_gen/pacman/Destroy()
 	DropFuel()
-	..()
+	return ..()
 
 /obj/machinery/power/port_gen/pacman/RefreshParts()
 	var/temp_rating = 0
@@ -245,11 +245,11 @@
 	sheets = 0
 	sheet_left = 0
 	..()
-	
+
 /obj/machinery/power/port_gen/pacman/emag_act(var/remaining_charges, var/mob/user)
 	if (active && prob(25))
 		explode() //if they're foolish enough to emag while it's running
-	
+
 	if (!emagged)
 		emagged = 1
 		return 1

code/modules/power/singularity/particle_accelerator/particle_control.dm

@@ -30,7 +30,9 @@
 /obj/machinery/particle_accelerator/control_box/Destroy()
 	if(active)
 		toggle_power()
-	..()
+	qdel(wires)
+	wires = null
+	return ..()
 
 /obj/machinery/particle_accelerator/control_box/attack_hand(mob/user as mob)
 	if(construction_state >= 3)

code/modules/power/smes_construction.dm

@@ -76,11 +76,11 @@
 	should_be_mapped = 1
 
 /obj/machinery/power/smes/buildable/Destroy()
-	..()
 	qdel(wires)
+	wires = null
 	for(var/datum/nano_module/rcon/R in world)
 		R.FindDevices()
-
+	return ..()
 
 // Proc: process()
 // Parameters: None