Catwalk floors for interior use (#21437)

* That's a start

* We had sounds all this time

* New icons, fix tile interaction with plating.

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

@@ -1,6 +1,7 @@
 GLOBAL_LIST_INIT(rod_recipes, list (
 	new /datum/stack_recipe("grille", /obj/structure/grille, 2, time = 1 SECONDS, one_per_turf = TRUE, on_floor_or_lattice = TRUE),
 	new /datum/stack_recipe("table frame", /obj/structure/table_frame, 2, time = 1 SECONDS, one_per_turf = TRUE, on_floor = TRUE),
+	new /datum/stack_recipe("catwalk tile", /obj/item/stack/tile/catwalk, 2, 4, 20),
 	null,
 	new /datum/stack_recipe("railing", /obj/structure/railing, 3, time = 1 SECONDS, one_per_turf = TRUE, on_floor = TRUE),
 	new /datum/stack_recipe("railing corner", /obj/structure/railing/corner, 3, time = 1 SECONDS, one_per_turf = TRUE, on_floor = TRUE),

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

@@ -271,3 +271,20 @@
 
 /obj/item/stack/tile/disco_light/thirty
 	amount = 30
+
+/obj/item/stack/tile/catwalk
+	name = "catwalk tiles"
+	gender = PLURAL
+	singular_name = "catwalk tile"
+	desc = "A catwalk tile. Not rated for space usage."
+	icon_state = "tile_catwalk"
+	force = 6
+	materials = list(MAT_METAL=500)
+	throwforce = 10
+	throw_speed = 3
+	throw_range = 7
+	flags = CONDUCT
+	turf_type = /turf/simulated/floor/catwalk
+	mineralType = "metal"
+	armor = list(MELEE = 0, BULLET = 0, LASER = 0, ENERGY = 0, BOMB = 0, RAD = 0, FIRE = 100, ACID = 70)
+	resistance_flags = FIRE_PROOF