fixes infinite morphium duplication exploit (#9046)

* fixes very old exploit that we literally just discovered

* this is what i get for speedrunning a bugfix

* reworks material ejection code

* literally it worked fine this is just so github likes it

* Update code/game/machinery/autolathe.dm

Co-authored-by: Atermonera <atermonera@gmail.com>

* Update code/game/machinery/autolathe.dm

Co-authored-by: Atermonera <atermonera@gmail.com>

* code prettiness

---------

Co-authored-by: Atermonera <atermonera@gmail.com>

code/game/objects/items/stacks/tiles/fifty_spawner_tiles.dm

@@ -1,22 +1,22 @@
 //see /code/modules/materials/fifty_stacks.dm for how this stuff works
 
-/obj/fiftyspawner/grass
+/obj/fiftyspawner/grasstiles
 	name = "stack of grass"
 	type_to_spawn = /obj/item/stack/tile/grass
 
-/obj/fiftyspawner/grass/sif
+/obj/fiftyspawner/grasstiles/sif
 	name = "stack of sifgrass"
 	type_to_spawn = /obj/item/stack/tile/grass/sif
 
-/obj/fiftyspawner/grass/sif/forest
+/obj/fiftyspawner/grasstiles/sif/forest
 	name = "stack of sifgrass"
 	type_to_spawn = /obj/item/stack/tile/grass/sif/forest
 
-/obj/fiftyspawner/wood
+/obj/fiftyspawner/woodtiles
 	name = "stack of wood"
 	type_to_spawn = /obj/item/stack/tile/wood
 
-/obj/fiftyspawner/wood/sif
+/obj/fiftyspawner/woodtiles/sif
 	name = "stack of alien wood"
 	type_to_spawn = /obj/item/stack/tile/wood/sif
 

code/game/objects/items/stacks/tiles/tile_types.dm

@@ -20,25 +20,14 @@
 	drop_sound = 'sound/items/drop/axe.ogg'
 	pickup_sound = 'sound/items/pickup/axe.ogg'
 
-//crafting / welding vars
-	var/datum/material/material //*sigh* i guess this is how we're doing this.
-	var/craftable = FALSE //set to TRUE for tiles you can craft stuff from directly, like grass
+//welding vars
 	var/can_weld = FALSE //set to TRUE for tiles you can reforge into their components via welding, like metal
 	var/welds_into = /obj/item/stack/material/steel //what you get from the welding. defaults to steel.
-	var/default_type = DEFAULT_WALL_MATERIAL
-
 
 
 /obj/item/stack/tile/Initialize()
 	. = ..()
 	randpixel_xy()
-	if(craftable)
-		material = get_material_by_name("[default_type]")
-		if(!material)
-			return INITIALIZE_HINT_QDEL
-		if(material) //sanity check
-			recipes = material.get_recipes()
-			stacktype = material.stack_type
 
 /obj/item/stack/tile/attackby(obj/item/W as obj, mob/user as mob)
 	if (istype(W, /obj/item/weldingtool))
@@ -73,7 +62,6 @@
 	singular_name = "grass floor tile"
 	desc = "A patch of grass like they often use on golf courses."
 	icon_state = "tile_grass"
-	default_type = "grass"
 	force = 1.0
 	throwforce = 1.0
 	throw_speed = 5
@@ -83,7 +71,6 @@
 	no_variants = FALSE
 	drop_sound = 'sound/items/drop/herb.ogg'
 	pickup_sound = 'sound/items/pickup/herb.ogg'
-	craftable = TRUE
 
 /obj/item/stack/tile/grass/sif
 	name = "sivian grass tile"