[MIRROR] Enables the RPED to construct/replace beakers, igniters and bluespace crystals (#5673)

* Enables the RPED to construct/replace beakers, igniters and bluespace crystals (#35779)

* - Makes it possible to load the rped with beakers, assemblies and other such parts

* - Fixes cell ratings being not really related to desirability

* - sorry uhhh emp cells need to be slightly better than regular cells

* Enables the RPED to construct/replace beakers, igniters and bluespace crystals

code/game/machinery/constructable_frame.dm

@@ -192,7 +192,7 @@
 				var/list/part_list = list()
 
 				//Assemble a list of current parts, then sort them by their rating!
-				for(var/obj/item/stock_parts/co in replacer)
+				for(var/obj/item/co in replacer)
 					part_list += co
 				//Sort the parts. This ensures that higher tier items are applied first.
 				part_list = sortTim(part_list, /proc/cmp_rped_sort)
@@ -200,13 +200,28 @@
 				for(var/path in req_components)
 					while(req_components[path] > 0 && (locate(path) in part_list))
 						var/obj/item/part = (locate(path) in part_list)
-						added_components[part] = path
-						replacer.remove_from_storage(part, src)
-						req_components[path]--
 						part_list -= part
+						if(istype(part,/obj/item/stack))
+							var/obj/item/stack/S = part
+							var/used_amt = min(round(S.get_amount()), req_components[path])
+							if(!used_amt || !S.use(used_amt))
+								continue
+							var/NS = new S.merge_type(src, used_amt)
+							added_components[NS] = path
+							req_components[path] -= used_amt
+						else
+							added_components[part] = path
+							replacer.remove_from_storage(part, src)
+							req_components[path]--
 
-				for(var/obj/item/stock_parts/part in added_components)
-					components += part
+				for(var/obj/item/part in added_components)
+					if(istype(part,/obj/item/stack))
+						var/obj/item/stack/S = part
+						var/obj/item/stack/NS = locate(S.merge_type) in components //find a stack to merge with
+						if(NS)
+							S.merge(NS)
+					if(!QDELETED(part)) //If we're a stack and we merged we might not exist anymore
+						components += part
 					to_chat(user, "<span class='notice'>[part.name] applied.</span>")
 				if(added_components.len)
 					replacer.play_rped_sound()
@@ -242,7 +257,6 @@
 	if(user.a_intent == INTENT_HARM)
 		return ..()
 
-
 /obj/structure/frame/machine/deconstruct(disassembled = TRUE)
 	if(!(flags_1 & NODECONSTRUCT_1))
 		if(state >= 2)