RETURNTOPOOL AND VARIOUS (#16540)

* RETURNTOPOOL AND VARIOUS

* fixes

* forgot a fix

* more fix

* too tired to git

* Sood AKA that guy that always tries to fix GC even though he forgets how it works every time and he always does it late at night in a hurry

* cluster knows best

code/WorkInProgress/buildmode.dm

@@ -21,6 +21,7 @@
 			if(M.client.buildmode_objs && M.client.buildmode_objs.len)
 				for(var/BM in M.client.buildmode_objs)
 					returnToPool(BM)
+				M.client.buildmode_objs.Cut()
 		else
 			log_admin("[key_name(usr)] has entered build mode.")
 			M.client.buildmode = 1

code/_onclick/hud/hud.dm

@@ -172,6 +172,7 @@ var/global/obj/abstract/screen/clicker/catcher = new()
 			adding -= IN
 			mymob.client.screen -= IN
 
+		hand_hud_objects -= IN
 		returnToPool(IN)
 
 	if(mymob.client)

code/game/atoms_movable.dm

@@ -73,6 +73,7 @@
 
 	if(materials)
 		returnToPool(materials)
+		materials = null
 
 	if(on_moved)
 		on_moved.holder = null

code/game/dna/dna_modifier.dm

@@ -414,6 +414,7 @@
 	connected = null
 	for(var/datum/block_label/label in labels)
 		returnToPool(label)
+	labels.Cut()
 	buffers.Cut()
 	if(disk)
 		qdel(disk)

code/game/gamemodes/changeling/changeling_powers.dm

@@ -52,6 +52,7 @@
 		return
 	if(!path)
 		returnToPool(verb_holder)
+		verb_holder = null
 		return
 
 	verb_holder.verbs -= path
@@ -197,6 +198,7 @@
 			verb_holder.verbs -= P.verbpath
 
 	returnToPool(verb_holder)
+	verb_holder = null
 
 
 //Helper proc. Does all the checks and stuff for us to avoid copypasta

code/game/machinery/kitchen/smartfridge.dm

@@ -85,6 +85,7 @@
 /obj/machinery/smartfridge/Destroy()
 	for(var/key in piles)
 		returnToPool(piles[key])
+	piles.Cut()
 	..()
 
 /obj/machinery/smartfridge/proc/accept_check(var/obj/item/O as obj, var/mob/user as mob)

code/game/objects/items/stacks/cable.dm

@@ -183,6 +183,7 @@ var/global/list/datum/stack_recipe/cable_recipes = list ( \
 		if(prob(50)) //Fail
 			getFromPool(/obj/item/stack/cable_coil, C.loc, 1)
 			returnToPool(C)
+			return // let's not return the reference to a pooled cable
 
 	return C //What was our last known position?
 

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

@@ -86,7 +86,7 @@
 
 /obj/item/weapon/rcl/proc/is_empty(mob/user)
 	update_icon()
-	if(!loaded.amount)
+	if(loaded && !loaded.amount)
 		to_chat(user, "<span class='notice'>The last of the cables unreel from \the [src].</span>")
 		returnToPool(loaded)
 		loaded = null

code/game/objects/structures/watercloset.dm

@@ -276,6 +276,7 @@
 	overlays.len = 0 //Once it's been on for a while, in addition to handling the water overlay.
 	if(mymist)
 		returnToPool(mymist)
+		mymist = null
 
 	if(on)
 		var/image/water = image('icons/obj/watercloset.dmi', src, "water", BELOW_OBJ_LAYER, dir)
@@ -297,6 +298,7 @@
 		spawn(250)
 			if(src && !on)
 				returnToPool(mymist)
+				mymist = null
 				ismist = 0
 
 /obj/machinery/shower/Crossed(atom/movable/O)

code/game/turfs/simulated/floor.dm

@@ -365,9 +365,9 @@ turf/simulated/floor/update_icon()
 	if(floor_tile)
 		//qdel(floor_tile)
 		returnToPool(floor_tile)
+		floor_tile = null
 	icon_plating = "plating"
 	set_light(0)
-	floor_tile = null
 	intact = 0
 	broken = 0
 	burnt = 0
@@ -388,7 +388,7 @@ turf/simulated/floor/update_icon()
 	set_light(0)
 	if(floor_tile)
 		returnToPool(floor_tile)
-	floor_tile = null
+		floor_tile = null
 	if(T)
 		if(istype(T,/obj/item/stack/tile/plasteel))
 			floor_tile = T
@@ -418,7 +418,7 @@ turf/simulated/floor/update_icon()
 	plane = TURF_PLANE
 	if(floor_tile)
 		returnToPool(floor_tile)
-	floor_tile = null
+		floor_tile = null
 	if(T)
 		if(istype(T,/obj/item/stack/tile/light))
 			floor_tile = T
@@ -440,7 +440,7 @@ turf/simulated/floor/update_icon()
 	plane = TURF_PLANE
 	if(floor_tile)
 		returnToPool(floor_tile)
-	floor_tile = null
+		floor_tile = null
 	if(T)
 		if(istype(T,/obj/item/stack/tile/grass))
 			floor_tile = T
@@ -461,7 +461,7 @@ turf/simulated/floor/update_icon()
 	plane = TURF_PLANE
 	if(floor_tile)
 		returnToPool(floor_tile)
-	floor_tile = null
+		floor_tile = null
 	if(T)
 		if(istype(T,/obj/item/stack/tile/wood))
 			floor_tile = T
@@ -482,7 +482,7 @@ turf/simulated/floor/update_icon()
 	plane = TURF_PLANE
 	if(floor_tile)
 		returnToPool(floor_tile)
-	floor_tile = null
+		floor_tile = null
 	if(T)
 		if(istype(T,/obj/item/stack/tile/carpet))
 			floor_tile = T
@@ -573,10 +573,10 @@ turf/simulated/floor/update_icon()
 			if(!broken && !burnt)
 				var/obj/item/stack/tile/T = C
 				if(T.use(1))
-					if(floor_tile)
+					if(floor_tile && floor_tile.type != T.type)
 						returnToPool(floor_tile)
-					floor_tile = null
+						floor_tile = null
-					floor_tile = getFromPool(T.type, null)
+						floor_tile = getFromPool(T.type, null)
 					material = floor_tile.material
 					intact = 1
 					plane = TURF_PLANE

code/modules/clothing/gloves/color.dm

@@ -42,8 +42,7 @@
 			spark(user, 5)
 		if(L.damage <= 0)
 			returnToPool(L)
-			//del(L)
+		else
-		if(L)
 			playsound(get_turf(src), 'sound/effects/eleczap.ogg', 75, 1)
 			L.tang = adjustAngle(get_angle(U,T))
 			L.icon = midicon

code/modules/medical/cloning.dm

@@ -88,6 +88,7 @@
 /obj/item/weapon/disk/data/Destroy()
 	for(var/datum/block_label/label in labels)
 		returnToPool(label)
+	labels.Cut()
 	..()
 
 /obj/item/weapon/disk/data/proc/Initialize()

code/modules/mob/mob_grab.dm

@@ -278,7 +278,7 @@
 		assailant = null
 	if(hud)
 		returnToPool(hud)
-	hud = null
+		hud = null
 	..()
 
 /mob/proc/grab_check(mob/victim)