Fixes #10314

Replaces every check for a hardcoded material stack type with a check
for material of the stack.

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

@@ -71,8 +71,8 @@
 		Emag()
 		return
 
-	if(istype(W, /obj/item/stack/material/glass))
-		var/obj/item/stack/material/glass/G = W
+	if(istype(W, /obj/item/stack/material) && W.get_material_name() == "glass")
+		var/obj/item/stack/G = W
 		if(uses >= max_uses)
 			user << "<span class='warning'>[src.name] is full."
 			return

code/game/objects/items/robot/robot_parts.dm

@@ -125,7 +125,7 @@
 
 /obj/item/robot_parts/robot_suit/attackby(obj/item/W as obj, mob/user as mob)
 	..()
-	if(istype(W, /obj/item/stack/material/steel) && !l_arm && !r_arm && !l_leg && !r_leg && !chest && !head)
+	if(istype(W, /obj/item/stack/material) && W.get_material_name() == DEFAULT_WALL_MATERIAL && !l_arm && !r_arm && !l_leg && !r_leg && !chest && !head)
 		var/obj/item/stack/material/steel/M = W
 		if (M.use(1))
 			var/obj/item/weapon/secbot_assembly/ed209_assembly/B = new /obj/item/weapon/secbot_assembly/ed209_assembly

code/game/objects/items/stacks/sheets/light.dm

@@ -22,8 +22,8 @@
 			user.drop_from_inventory(src)
 			qdel(src)
 
-	if(istype(O,/obj/item/stack/material/steel))
-		var/obj/item/stack/material/steel/M = O
+	if(istype(O,/obj/item/stack/material) && O.get_material_name() == DEFAULT_WALL_MATERIAL)
+		var/obj/item/stack/M = O
 		if (M.use(1))
 			use(1)
 			new/obj/item/stack/tile/light(get_turf(user))

code/game/objects/items/weapons/storage/bags.dm

@@ -119,10 +119,10 @@
 		//verbs += /obj/item/weapon/storage/bag/sheetsnatcher/quick_empty
 
 	can_be_inserted(obj/item/W as obj, stop_messages = 0)
-		if(!istype(W,/obj/item/stack/material) || istype(W,/obj/item/stack/material/sandstone) || istype(W,/obj/item/stack/material/wood))
+		if(!istype(W,/obj/item/stack/material))
 			if(!stop_messages)
 				usr << "The snatcher does not accept [W]."
-			return 0 //I don't care, but the existing code rejects them for not being "sheets" *shrug* -Sayu
+			return 0
 		var/current = 0
 		for(var/obj/item/stack/material/S in contents)
 			current += S.amount

code/game/objects/structures/door_assembly.dm

@@ -236,20 +236,20 @@
 			electronics = null
 
 	else if(istype(W, /obj/item/stack/material) && !glass)
-		var/obj/item/stack/material/S = W
+		var/obj/item/stack/S = W
+		var/material_name = S.get_material_name()
 		if (S)
 			if (S.get_amount() >= 1)
-				if(istype(S, /obj/item/stack/material/glass/reinforced))
+				if(material_name == "reinforced glass")
 					playsound(src.loc, 'sound/items/Crowbar.ogg', 100, 1)
 					user.visible_message("[user] adds [S.name] to the airlock assembly.", "You start to install [S.name] into the airlock assembly.")
 					if(do_after(user, 40) && !glass)
 						if (S.use(1))
 							user << "<span class='notice'>You installed reinforced glass windows into the airlock assembly.</span>"
 							glass = 1
-				else if(istype(S, /obj/item/stack/material) && S.default_type)
-					var/M = S.default_type
+				else if(material_name)
 					// Ugly hack, will suffice for now. Need to fix it upstream as well, may rewrite mineral walls. ~Z
-					if(M in list("mhydrogen","osmium","tritium","platinum","iron"))
+					if(!(material_name in list("gold", "silver", "diamond", "uranium", "phoron", "sandstone")))
 						user << "You cannot make an airlock out of that material."
 						return
 					if(S.get_amount() >= 2)
@@ -257,8 +257,8 @@
 						user.visible_message("[user] adds [S.name] to the airlock assembly.", "You start to install [S.name] into the airlock assembly.")
 						if(do_after(user, 40) && !glass)
 							if (S.use(2))
-								user << "<span class='notice'>You installed [M] plating into the airlock assembly.</span>"
-								glass = "[M]"
+								user << "<span class='notice'>You installed [material_display_name(material_name)] plating into the airlock assembly.</span>"
+								glass = material_name
 
 	else if(istype(W, /obj/item/weapon/screwdriver) && state == 2 )
 		playsound(src.loc, 'sound/items/Screwdriver.ogg', 100, 1)

code/game/objects/structures/girders.dm

@@ -108,11 +108,11 @@
 
 	else if(istype(W, /obj/item/stack/material))
 
-		var/obj/item/stack/material/S = W
+		var/obj/item/stack/S = W
 		if(S.get_amount() < 2)
 			return ..()
 
-		var/material/M = name_to_material[S.default_type]
+		var/material/M = S.get_material()
 		if(!istype(M))
 			return ..()
 
@@ -183,7 +183,7 @@
 		user << "There is not enough material here to reinforce the girder."
 		return
 
-	var/material/M = name_to_material[S.default_type]
+	var/material/M = S.get_material()
 	if(!istype(M) || M.integrity < 50)
 		user << "You cannot reinforce \the [src] with that; it is too soft."
 		return