[READY] Meat material & material datum turf support (#49402)

* temp

* meatwalls

* more

* adds sheetifier

* fix

* two

* mat texture + 4dplanner admin (#21)

* mat texture + 4dplanner admin

* keep together trait

* counter instead of trait

* finalizations

* woops

* fixes

* oopsie

* only set starting keep_together if necessary (#24)

* keep together as trait again

* remove false comment

* doc for TRAIT_KEEP_TOGETHER

* remove needless scoping

Co-authored-by: 4dplanner <3combined@gmail.com>

code/game/objects/structures/girders.dm

@@ -163,7 +163,7 @@
 						qdel(src)
 					return
 
-		if(S.sheettype && S.sheettype != "runed")
+		if(S.sheettype != "runed")
 			var/M = S.sheettype
 			if(state == GIRDER_DISPLACED)
 				if(S.get_amount() < 2)
@@ -189,7 +189,16 @@
 					S.use(2)
 					to_chat(user, "<span class='notice'>You add the plating.</span>")
 					var/turf/T = get_turf(src)
-					T.PlaceOnTop(text2path("/turf/closed/wall/mineral/[M]"))
+					if(S.walltype)
+						T.PlaceOnTop(S.walltype)
+					else
+						var/turf/newturf = T.PlaceOnTop(/turf/closed/wall/material)
+						var/list/material_list = list()
+						if(S.material_type)
+							material_list[SSmaterials.GetMaterialRef(S.material_type)] = MINERAL_MATERIAL_AMOUNT * 2
+						if(material_list)
+							newturf.set_custom_materials(material_list)
+
 					transfer_fingerprints_to(T)
 					qdel(src)
 				return