Subsysteming Attempt 2...?

_maps/outpost/nanotrasen_ice.dmm

@@ -1032,9 +1032,6 @@
 /obj/machinery/atmospherics/pipe/simple/supply/hidden/layer4{
 	dir = 1
 	},
-/obj/machinery/atmospherics/pipe/simple/scrubbers/hidden/layer2{
-	dir = 1
-	},
 /obj/structure/chair/stool/bar{
 	dir = 8;
 	pixel_x = -6
@@ -2353,12 +2350,6 @@
 	pixel_y = 28;
 	pixel_x = 4
 	},
-/obj/machinery/atmospherics/pipe/simple/scrubbers/hidden/layer2{
-	dir = 8
-	},
-/obj/machinery/atmospherics/pipe/simple/supply/hidden/layer4{
-	dir = 8
-	},
 /obj/effect/turf_decal/siding/wood{
 	color = "#543C30";
 	dir = 9
@@ -2483,12 +2474,6 @@
 	pixel_x = 8;
 	pixel_y = 4
 	},
-/obj/machinery/atmospherics/pipe/simple/scrubbers/hidden/layer2{
-	dir = 10
-	},
-/obj/machinery/atmospherics/pipe/simple/supply/hidden/layer4{
-	dir = 10
-	},
 /obj/effect/decal/cleanable/dirt/dust,
 /obj/effect/decal/cleanable/dirt/dust,
 /turf/open/floor/wood/walnut,
@@ -3007,17 +2992,20 @@
 	dir = 8;
 	pixel_x = -6
 	},
-/obj/machinery/atmospherics/pipe/manifold/supply/hidden/layer4{
-	dir = 4
-	},
-/obj/machinery/atmospherics/pipe/simple/scrubbers/hidden/layer2{
-	dir = 10
+/obj/machinery/atmospherics/pipe/simple/supply/hidden/layer4{
+	dir = 1
 	},
 /turf/open/floor/wood/walnut,
 /area/outpost/crew/bar)
 "tx" = (
 /obj/structure/catwalk/over/plated_catwalk,
 /obj/effect/decal/cleanable/dirt/dust,
+/obj/machinery/atmospherics/components/unary/portables_connector/layer2{
+	dir = 8
+	},
+/obj/machinery/atmospherics/pipe/simple/supply/hidden/layer4{
+	dir = 8
+	},
 /turf/open/floor/plating{
 	light_color = "#1B1D2E";
 	light_range = 2
@@ -3945,6 +3933,26 @@
 	},
 /turf/open/floor/plating,
 /area/outpost/maintenance/starboard)
+"zi" = (
+/obj/effect/turf_decal/industrial/traffic{
+	dir = 4
+	},
+/obj/effect/turf_decal/industrial/traffic{
+	dir = 8
+	},
+/obj/machinery/door/poddoor/ert{
+	dir = 8;
+	id = "ice_exterior_port"
+	},
+/obj/effect/decal/cleanable/dirt,
+/obj/machinery/atmospherics/pipe/simple/supply/hidden/layer4{
+	dir = 4
+	},
+/obj/machinery/atmospherics/pipe/simple/scrubbers/hidden/layer2{
+	dir = 8
+	},
+/turf/open/floor/plasteel/patterned/brushed,
+/area/outpost/exterior)
 "zn" = (
 /obj/effect/turf_decal/siding/white,
 /obj/machinery/atmospherics/pipe/simple/supply/hidden/layer4{
@@ -4345,6 +4353,20 @@
 	light_range = 2
 	},
 /area/outpost/exterior)
+"BE" = (
+/obj/structure/catwalk/over/plated_catwalk,
+/obj/effect/decal/cleanable/dirt/dust,
+/obj/machinery/atmospherics/components/unary/portables_connector/layer2{
+	dir = 4
+	},
+/obj/machinery/atmospherics/pipe/simple/supply/hidden/layer4{
+	dir = 4
+	},
+/turf/open/floor/plating{
+	light_color = "#1B1D2E";
+	light_range = 2
+	},
+/area/outpost/exterior)
 "BL" = (
 /obj/structure/catwalk/over/plated_catwalk,
 /obj/machinery/atmospherics/pipe/simple/supply/hidden/layer4{
@@ -4372,8 +4394,8 @@
 /obj/structure/cable{
 	icon_state = "2-4"
 	},
-/obj/machinery/atmospherics/pipe/manifold/scrubbers/hidden/layer2{
-	dir = 1
+/obj/machinery/atmospherics/pipe/simple/scrubbers/hidden/layer2{
+	dir = 6
 	},
 /turf/open/floor/wood/walnut{
 	icon_state = "wood-broken6"
@@ -5018,9 +5040,6 @@
 /obj/structure/cable{
 	icon_state = "0-4"
 	},
-/obj/machinery/atmospherics/pipe/simple/scrubbers/hidden/layer2{
-	dir = 5
-	},
 /obj/item/trash/chips,
 /obj/effect/spawner/random/maintenance,
 /obj/item/trash/candy,
@@ -6560,6 +6579,17 @@
 	},
 /turf/open/floor/plasteel/patterned,
 /area/outpost/crew/bathroom)
+"Re" = (
+/obj/structure/catwalk/over/plated_catwalk,
+/obj/effect/decal/cleanable/dirt/dust,
+/obj/machinery/atmospherics/components/unary/portables_connector/layer4{
+	dir = 8
+	},
+/turf/open/floor/plating{
+	light_color = "#1B1D2E";
+	light_range = 2
+	},
+/area/outpost/exterior)
 "Rg" = (
 /obj/effect/turf_decal/industrial/outline/yellow,
 /obj/machinery/mineral/electrolyzer{
@@ -6634,12 +6664,6 @@
 	pixel_x = 8;
 	pixel_y = 4
 	},
-/obj/machinery/atmospherics/pipe/simple/scrubbers/hidden/layer2{
-	dir = 5
-	},
-/obj/machinery/atmospherics/pipe/simple/supply/hidden/layer4{
-	dir = 5
-	},
 /turf/open/floor/wood/walnut,
 /area/outpost/crew/bar)
 "RC" = (
@@ -6923,8 +6947,6 @@
 /turf/open/floor/plasteel/patterned/brushed,
 /area/outpost/crew/bathroom)
 "Tv" = (
-/obj/machinery/atmospherics/pipe/simple/scrubbers/hidden/layer2,
-/obj/machinery/atmospherics/pipe/simple/supply/hidden/layer4,
 /turf/open/floor/wood/walnut{
 	icon_state = "wood-broken7"
 	},
@@ -7494,6 +7516,27 @@
 /obj/structure/extinguisher_cabinet/directional/south,
 /turf/open/floor/plasteel/dark,
 /area/outpost/vacant_rooms/shop)
+"WY" = (
+/obj/effect/turf_decal/industrial/traffic{
+	dir = 4
+	},
+/obj/effect/turf_decal/industrial/traffic{
+	dir = 8
+	},
+/obj/machinery/door/poddoor/ert{
+	dir = 8;
+	id = "ice_exterior_starboard"
+	},
+/obj/effect/decal/cleanable/dirt,
+/obj/effect/decal/cleanable/dirt,
+/obj/machinery/atmospherics/pipe/simple/scrubbers/hidden/layer2{
+	dir = 8
+	},
+/obj/machinery/atmospherics/pipe/simple/supply/hidden/layer4{
+	dir = 8
+	},
+/turf/open/floor/plasteel/patterned/brushed,
+/area/outpost/exterior)
 "Xa" = (
 /obj/structure/catwalk/over/plated_catwalk,
 /obj/machinery/atmospherics/pipe/simple/scrubbers/hidden/layer2{
@@ -7751,6 +7794,17 @@
 	},
 /turf/open/floor/plasteel/tech/techmaint,
 /area/outpost/maintenance/starboard)
+"Ya" = (
+/obj/structure/catwalk/over/plated_catwalk,
+/obj/effect/decal/cleanable/dirt/dust,
+/obj/machinery/atmospherics/components/unary/portables_connector/layer4{
+	dir = 4
+	},
+/turf/open/floor/plating{
+	light_color = "#1B1D2E";
+	light_range = 2
+	},
+/area/outpost/exterior)
 "Yb" = (
 /obj/structure/table/reinforced,
 /obj/effect/turf_decal/borderfloor{
@@ -10765,7 +10819,7 @@ cC
 Nh
 de
 Cy
-tx
+Ya
 UF
 ct
 Nh
@@ -10849,7 +10903,7 @@ cC
 Nh
 KD
 JN
-tx
+BE
 wL
 uy
 Nh
@@ -10933,7 +10987,7 @@ cC
 Nh
 Nh
 dh
-Ub
+zi
 Ub
 Nh
 Nh
@@ -14295,7 +14349,7 @@ Ak
 Ak
 Nh
 ZM
-Dx
+WY
 Dx
 Nh
 Nh
@@ -14463,7 +14517,7 @@ cC
 Nh
 ll
 vy
-tx
+Re
 Gg
 qK
 Nh

_maps/shuttles/independent/independent_rigger.dmm

@@ -36,6 +36,9 @@
 "aw" = (
 /obj/machinery/power/terminal,
 /obj/structure/cable,
+/obj/machinery/atmospherics/pipe/simple/supply/hidden/layer2{
+	dir = 5
+	},
 /turf/open/floor/plating,
 /area/ship/maintenance/starboard)
 "ax" = (
@@ -215,6 +218,9 @@
 /obj/machinery/power/terminal,
 /obj/structure/cable,
 /obj/machinery/firealarm/directional/east,
+/obj/machinery/atmospherics/components/unary/vent_pump/on/layer2{
+	dir = 8
+	},
 /turf/open/floor/plating,
 /area/ship/maintenance/starboard)
 "db" = (
@@ -897,6 +903,9 @@
 	icon_state = "0-8"
 	},
 /obj/machinery/power/apc/auto_name/directional/north,
+/obj/machinery/atmospherics/components/unary/vent_scrubber/on/layer4{
+	dir = 8
+	},
 /turf/open/floor/plating,
 /area/ship/maintenance/starboard)
 "lf" = (
@@ -1875,6 +1884,9 @@
 /obj/machinery/atmospherics/components/binary/pump{
 	name = "engine fuel pump"
 	},
+/obj/machinery/atmospherics/pipe/simple/supply/hidden/layer2{
+	dir = 4
+	},
 /turf/open/floor/plating,
 /area/ship/maintenance/starboard)
 "xJ" = (
@@ -2173,6 +2185,9 @@
 	pixel_x = -5;
 	pixel_y = 22
 	},
+/obj/machinery/atmospherics/pipe/simple/scrubbers/hidden/layer4{
+	dir = 4
+	},
 /turf/open/floor/plasteel/tech,
 /area/ship/maintenance/starboard)
 "zV" = (
@@ -2663,6 +2678,10 @@
 /obj/structure/cable{
 	icon_state = "1-4"
 	},
+/obj/machinery/atmospherics/pipe/simple/supply/hidden/layer2,
+/obj/machinery/atmospherics/pipe/simple/scrubbers/hidden/layer4{
+	dir = 5
+	},
 /turf/open/floor/plating,
 /area/ship/maintenance/starboard)
 "Gf" = (

_maps/shuttles/inteq/inteq_vaquero.dmm

@@ -2278,10 +2278,10 @@
 /obj/structure/cable{
 	icon_state = "4-8"
 	},
-/obj/machinery/atmospherics/pipe/manifold/scrubbers/hidden/layer4{
-	dir = 1
-	},
 /obj/machinery/atmospherics/pipe/manifold/supply/hidden/layer2,
+/obj/machinery/atmospherics/pipe/simple/scrubbers/hidden/layer4{
+	dir = 8
+	},
 /turf/open/floor/plasteel/grimy,
 /area/ship/crew)
 "In" = (

_maps/shuttles/minutemen/minutemen_arke.dmm

@@ -1262,9 +1262,6 @@
 /turf/open/floor/engine/hull/reinforced/interior,
 /area/ship/cargo)
 "Ki" = (
-/obj/machinery/atmospherics/pipe/simple/supply/hidden/layer2{
-	dir = 9
-	},
 /obj/structure/rack,
 /obj/item/t_scanner/adv_mining_scanner{
 	pixel_y = 4;

_maps/shuttles/minutemen/minutemen_atlas.dmm

@@ -804,14 +804,18 @@
 /area/ship/crew/canteen)
 "jL" = (
 /obj/structure/catwalk/over/plated_catwalk/dark,
-/obj/machinery/atmospherics/pipe/manifold4w/scrubbers/hidden/layer4,
-/obj/machinery/atmospherics/pipe/manifold4w/supply/hidden/layer2,
 /obj/structure/cable{
 	icon_state = "1-8"
 	},
 /obj/structure/cable{
 	icon_state = "2-8"
 	},
+/obj/machinery/atmospherics/pipe/manifold/scrubbers/hidden/layer4{
+	dir = 4
+	},
+/obj/machinery/atmospherics/pipe/manifold/supply/hidden/layer2{
+	dir = 4
+	},
 /turf/open/floor/plating,
 /area/ship/hallway/central)
 "jQ" = (

_maps/shuttles/syndicate/syndicate_ngr_kaliandhi.dmm

@@ -1291,6 +1291,9 @@
 /obj/structure/cable{
 	icon_state = "4-8"
 	},
+/obj/machinery/atmospherics/pipe/simple/supply/hidden/layer2{
+	dir = 4
+	},
 /turf/open/floor/plasteel/tech/grid,
 /area/ship/security/armory)
 "jM" = (

code/__DEFINES/MC.dm

@@ -1,4 +1,5 @@
 #define MC_TICK_CHECK ((TICK_USAGE > Master.current_ticklimit || src.state != SS_RUNNING) ? pause() : 0)
+#define MC_PAUSE_IF_TRUE(value) (value ? pause() : 0)
 
 #define MC_TICK_REMAINING_MS ((Master.current_ticklimit - TICK_USAGE) * world.tick_lag)
 
@@ -117,3 +118,15 @@
 }\
 /datum/controller/subsystem/verb_manager/##X/fire() {..() /*just so it shows up on the profiler*/} \
 /datum/controller/subsystem/verb_manager/##X
+
+//If you use this, MAKE SURE that all shared data and calls in Fire() are on the main subsystem, otherwise, the background subsystem will do nothing.
+#define BACKGROUND_SUBSYSTEM_DEF(X) /datum/controller/subsystem/##X/background/New(){\
+	PreInit();\
+	ss_id="background_[#X]";\
+}\
+/datum/controller/subsystem/##X/background/fire() {\
+	if(SS##X.can_fire) { ..() }\
+}\
+/datum/controller/subsystem/##X/background/Recover(){}\
+/datum/controller/subsystem/##X/background/flags=SS_BACKGROUND|SS_NO_INIT;\
+/datum/controller/subsystem/##X/background