Ship Supply Warehouse (Arc support) (#22401)

Replaces a section of D2 starboard maints with a thirty-slot warehouse
for ship supplies, for Lemurian Sea arc. Additional minor touchups.

changes:
- rscadd: "Updates a chunk of D2 starboard maintenance to be ship supply
warehousing space for the Lemurian Sea arc."
- bugfix: "Fixes 'restricted' random canister spawners inadvertently
spawning rare/valuable gases."

code/game/objects/random/tech.dm

@@ -290,6 +290,7 @@
 		/obj/machinery/portable_atmospherics/canister/empty/sleeping_agent = 1,
 		/obj/machinery/portable_atmospherics/canister/empty/helium = 0.5,
 		/obj/machinery/portable_atmospherics/canister/empty/chlorine = 0.1,
+		/obj/machinery/portable_atmospherics/canister/empty/sulfur_dioxide = 0.1,
 		/obj/machinery/portable_atmospherics/canister/empty/nitrogen_dioxide = 0.1,
 		/obj/machinery/portable_atmospherics/canister/empty/heliumfuel = 0.05,
 		/obj/machinery/portable_atmospherics/canister/empty/phoron = 0.1,
@@ -308,6 +309,7 @@
 		/obj/machinery/portable_atmospherics/canister/nitrogen/prechilled = 0.75,
 		/obj/machinery/portable_atmospherics/canister/helium = 0.5,
 		/obj/machinery/portable_atmospherics/canister/chlorine = 0.1,
+		/obj/machinery/portable_atmospherics/canister/sulfur_dioxide = 0.1,
 		/obj/machinery/portable_atmospherics/canister/nitrogen_dioxide = 0.1,
 		/obj/machinery/portable_atmospherics/canister/heliumfuel = 0.05,
 		/obj/machinery/portable_atmospherics/canister/phoron_scarce = 0.1,
@@ -328,8 +330,6 @@
 		/obj/machinery/portable_atmospherics/canister/nitrogen/prechilled = 0.75,
 		/obj/machinery/portable_atmospherics/canister/helium = 0.5,
 		/obj/machinery/portable_atmospherics/canister/chlorine = 0.1,
+		/obj/machinery/portable_atmospherics/canister/sulfur_dioxide = 0.1,
 		/obj/machinery/portable_atmospherics/canister/nitrogen_dioxide = 0.1,
-		/obj/machinery/portable_atmospherics/canister/heliumfuel = 0.05,
-		/obj/machinery/portable_atmospherics/canister/phoron_scarce = 0.1,
-		/obj/machinery/portable_atmospherics/canister/phoron = 0.01,
 	)

html/changelogs/Bat-ArcWarehouse.yml

@@ -0,0 +1,5 @@
+author: Batrachophrenoboocosmomachia
+delete-after: True
+changes:
+  - rscadd: "Updates a chunk of D2 starboard maintenance to be ship supply warehousing space for the Lemurian Sea arc."
+  - bugfix: "Fixes 'restricted' random canister spawners inadvertently spawning rare/valuable gases."

maps/sccv_horizon/areas/horizon_areas_crew.dm

@@ -242,6 +242,13 @@
 	horizon_deck = 1
 	area_blurb = "A discrete compartment frequented by the ship's many synthetics and IPCs."
 
+// In case we make all the supply closets their own /areas in future.
+/area/horizon/crew/emergency_closet/deck_2/starboard
+	name = "Emergency Supply Closet"
+	icon_state = "maintenance"
+	horizon_deck = 2
+	area_blurb = "Contains emergency supplies, surprisingly enough."
+
 // Rad shielded because common afk area.
 /area/horizon/crew/washroom
 	name = "Horizon - Head (PARENT AREA - DON'T USE)"

maps/sccv_horizon/areas/horizon_areas_operations.dm

@@ -14,6 +14,13 @@
 	area_blurb = "Scuff marks scar the floor from the movement of many crates and stored goods."
 	horizon_deck = 1
 
+/area/horizon/operations/ship_supply_warehouse
+	name = "Ship Supply Warehouse"
+	icon_state = "dark160"
+	sound_environment = SOUND_AREA_LARGE_ENCLOSED
+	area_blurb = "Scuff marks scar the floor from the movement of many crates and stored goods."
+	horizon_deck = 2
+
 /area/horizon/operations/package_conveyors
 	name = "Package Conveyors"
 	icon_state = "dark128"