Cable Coils can partial transfer, stripped depereciated code, changed cable coil message

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

@@ -13,6 +13,7 @@
 	var/list/recipes = list() // /datum/stack_recipe
 	var/singular_name
 	var/amount = 1
+	var/to_transfer = 0
 	var/max_amount //also see stack recipes initialisation, param "max_res_amount" must be equal to this max_amount
 	var/merge_type = null // This path and its children should merge with this stack, defaults to src.type
 
@@ -231,6 +232,9 @@
 /obj/item/stack/proc/get_max_amount()
 	return max_amount
 
+/obj/item/stack/proc/get_amount_transferred()
+	return to_transfer
+
 /obj/item/stack/proc/split(mob/user, amt)
 	var/obj/item/stack/F = new type(loc, amt)
 	F.copy_evidences(src)
@@ -257,7 +261,6 @@
 		if(S.amount >= max_amount)
 			return 1
 
-		var/to_transfer
 		if(user.is_in_inactive_hand(src))
 			var/desired = input("How much would you like to transfer from this stack?", "How much?", 1) as null|num
 			if(!desired)

code/modules/power/cable.dm

@@ -589,30 +589,15 @@ var/global/list/datum/stack_recipe/cable_coil_recipes = list(
 	if(istype(W, /obj/item/stack/cable_coil))
 		var/obj/item/stack/cable_coil/C = W
 		if(C.amount >= MAXCOIL)
-			to_chat(user, "The coil is too long, you cannot add any more cable to it.")
+			to_chat(user, "The coil is as long as it will get.")
 			return
-
 		if( (C.amount + src.amount <= MAXCOIL) )
 			to_chat(user, "You join the cable coils together.")
-			C.give(src.amount) // give it cable
-			src.use(src.amount) // make sure this one cleans up right
 			return
-
 		else
-			var/amt = MAXCOIL - C.amount
-			to_chat(user, "You transfer [amt] length\s of cable from one coil to the other.")
-			C.give(amt)
-			src.use(amt)
+			to_chat(user, "You transfer [get_amount_transferred()] length\s of cable from one coil to the other.")
 			return
 
-//add cables to the stack
-/obj/item/stack/cable_coil/proc/give(var/extra)
-	if(amount + extra > MAXCOIL)
-		amount = MAXCOIL
-	else
-		amount += extra
-	update_icon()
-
 ///////////////////////////////////////////////
 // Cable laying procedures
 //////////////////////////////////////////////