Ship gravity generator (#2705)

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## About The Pull Request

Adds support for ship-based gravity generators, ships no longer have
gravity by default and need to have an active generator. Currently
haven't had it added to maps, but the board is printable at an
autolathe.

Planets & the outpost now have a virtual z-wide gravity, allowing landed
ships to inherit planetary gravity.


https://github.com/shiptest-ss13/Shiptest/assets/24857008/a6ee357e-265b-4d1f-9602-7d11d81ca0ea


## Why It's Good For The Game

Dev wishlist, ships being effected by planetary gravity feels cool

## Changelog

:cl:
tweak: ships no longer have intrinsic gravity
add: new gravity generator machine for ships
tweak: planetary gravity is now stored level-wide, a ship landing at a
planet will be effected by the planet's gravity
/:cl:

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---------

Signed-off-by: Theos <[email protected]>
Co-authored-by: Latentish <[email protected]>

_maps/RandomRuins/JungleRuins/jungle_interceptor.dmm

@@ -4891,6 +4891,10 @@
 	},
 /turf/open/floor/plating,
 /area/ruin/jungle/interceptor/porthall)
+"Pi" = (
+/obj/item/circuitboard/machine/ship_gravity,
+/turf/open/floor/plating/rust,
+/area/overmap_encounter/planetoid/jungle/explored)
 "Pk" = (
 /obj/effect/turf_decal/corner/opaque/purple/three_quarters{
 	icon_state = "borderfloor_white";
@@ -7954,7 +7958,7 @@ aG
 SC
 Mw
 EJ
-wH
+Pi
 sV
 Mw
 Bb

_maps/shuttles/independent/independent_beluga.dmm

@@ -2093,6 +2093,8 @@
 /obj/structure/cable/yellow{
 	icon_state = "1-8"
 	},
+/obj/structure/cable/yellow,
+/obj/machinery/power/ship_gravity,
 /turf/open/floor/plating,
 /area/ship/engineering)
 "tR" = (

_maps/shuttles/independent/independent_box.dmm

@@ -2484,6 +2484,9 @@
 /obj/effect/turf_decal/trimline/opaque/yellow/filled/warning{
 	dir = 4
 	},
+/obj/structure/cable{
+	icon_state = "2-4"
+	},
 /turf/open/floor/plating,
 /area/ship/engineering)
 "KI" = (
@@ -2554,8 +2557,9 @@
 /obj/machinery/atmospherics/pipe/simple/orange/hidden{
 	dir = 9
 	},
-/obj/structure/salvageable/computer{
-	dir = 8
+/obj/machinery/power/ship_gravity,
+/obj/structure/cable{
+	icon_state = "0-8"
 	},
 /turf/open/floor/plating,
 /area/ship/engineering)

_maps/shuttles/independent/independent_boyardee.dmm

@@ -439,6 +439,10 @@
 	icon_state = "2-8"
 	},
 /obj/item/radio/intercom/directional/east,
+/obj/structure/table/reinforced,
+/obj/item/stock_parts/cell/high/plus,
+/obj/item/stock_parts/cell/high/plus,
+/obj/machinery/cell_charger,
 /turf/open/floor/plating,
 /area/ship/maintenance)
 "iB" = (
@@ -665,12 +669,14 @@
 /turf/open/floor/carpet/red_gold,
 /area/ship/crew/canteen)
 "mH" = (
-/obj/machinery/power/port_gen/pacman,
+/obj/effect/turf_decal/box,
 /obj/structure/cable/yellow{
-	icon_state = "0-2"
+	icon_state = "2-4"
 	},
-/obj/effect/turf_decal/box,
-/obj/item/stack/sheet/mineral/plasma/five,
+/obj/structure/reagent_dispensers/watertank/high,
+/obj/item/reagent_containers/glass/bucket,
+/obj/item/reagent_containers/glass/bucket,
+/obj/item/mop,
 /turf/open/floor/plating,
 /area/ship/maintenance)
 "nc" = (
@@ -1573,11 +1579,12 @@
 /turf/open/floor/plasteel/dark,
 /area/ship/crew/canteen)
 "CV" = (
-/obj/structure/reagent_dispensers/watertank/high,
-/obj/item/reagent_containers/glass/bucket,
-/obj/item/reagent_containers/glass/bucket,
-/obj/item/mop,
 /obj/effect/turf_decal/box,
+/obj/machinery/power/port_gen/pacman,
+/obj/item/stack/sheet/mineral/plasma/five,
+/obj/structure/cable/yellow{
+	icon_state = "0-8"
+	},
 /turf/open/floor/plating,
 /area/ship/maintenance)
 "Da" = (
@@ -2496,10 +2503,10 @@
 /turf/open/floor/plasteel,
 /area/ship/crew/canteen)
 "TN" = (
-/obj/structure/table/reinforced,
-/obj/machinery/cell_charger,
-/obj/item/stock_parts/cell/high/plus,
-/obj/item/stock_parts/cell/high/plus,
+/obj/structure/cable{
+	icon_state = "0-8"
+	},
+/obj/machinery/power/ship_gravity,
 /turf/open/floor/plating,
 /area/ship/maintenance)
 "Uf" = (
@@ -2627,6 +2634,9 @@
 	icon_state = "2-8"
 	},
 /obj/effect/turf_decal/box,
+/obj/structure/cable{
+	icon_state = "2-4"
+	},
 /turf/open/floor/plating,
 /area/ship/maintenance)
 "VR" = (

_maps/shuttles/independent/independent_bubble.dmm

@@ -480,13 +480,9 @@
 /turf/open/floor/plasteel,
 /area/ship/bridge)
 "uw" = (
-/obj/item/pipe_dispenser,
-/obj/structure/closet/crate,
-/obj/item/construction/plumbing,
-/obj/item/construction/rcd/arcd,
-/obj/item/stack/sheet/plasteel/fifty,
-/obj/item/construction/rcd/combat,
 /obj/effect/decal/cleanable/dirt/dust,
+/obj/structure/cable,
+/obj/machinery/power/ship_gravity,
 /turf/open/floor/plating/rust,
 /area/ship/maintenance/aft)
 "uE" = (
@@ -636,6 +632,9 @@
 	dir = 8
 	},
 /obj/effect/decal/cleanable/dirt/dust,
+/obj/structure/cable{
+	icon_state = "1-2"
+	},
 /turf/open/floor/plating/rust,
 /area/ship/maintenance/aft)
 "Ay" = (
@@ -988,6 +987,21 @@
 "Ob" = (
 /turf/closed/wall,
 /area/ship/maintenance/aft)
+"OR" = (
+/obj/machinery/power/terminal{
+	dir = 8
+	},
+/obj/structure/cable{
+	icon_state = "0-4"
+	},
+/obj/structure/closet/crate,
+/obj/item/stack/sheet/plasteel/fifty,
+/obj/item/pipe_dispenser,
+/obj/item/construction/rcd/arcd,
+/obj/item/construction/rcd/combat,
+/obj/item/construction/plumbing,
+/turf/open/floor/plating,
+/area/ship/maintenance/aft)
 "OY" = (
 /obj/structure/cable{
 	icon_state = "1-2"
@@ -1345,7 +1359,7 @@ bv
 MZ
 jI
 MW
-VA
+OR
 Ob
 Ob
 VB

_maps/shuttles/independent/independent_dwayne.dmm

@@ -254,6 +254,10 @@
 	dir = 4
 	},
 /obj/structure/catwalk/over/plated_catwalk/dark,
+/obj/machinery/power/ship_gravity,
+/obj/structure/cable/yellow{
+	icon_state = "0-2"
+	},
 /turf/open/floor/plating,
 /area/ship/engineering)
 "gm" = (

_maps/shuttles/independent/independent_kilo.dmm

@@ -618,7 +618,6 @@
 "cY" = (
 /obj/effect/decal/cleanable/greenglow,
 /obj/effect/decal/cleanable/dirt,
-/obj/structure/table,
 /obj/machinery/atmospherics/components/unary/vent_scrubber/on/layer4{
 	dir = 1
 	},
@@ -632,6 +631,10 @@
 	pixel_x = -23;
 	id = "kiloengine"
 	},
+/obj/structure/cable{
+	icon_state = "0-4"
+	},
+/obj/machinery/power/ship_gravity,
 /turf/open/floor/plating,
 /area/ship/engineering/engine)
 "cZ" = (
@@ -1841,6 +1844,9 @@
 /obj/machinery/atmospherics/components/unary/vent_pump/on/layer2{
 	dir = 1
 	},
+/obj/structure/cable{
+	icon_state = "1-8"
+	},
 /turf/open/floor/plating,
 /area/ship/engineering/engine)
 "Nq" = (

_maps/shuttles/independent/independent_lagoon.dmm

@@ -741,8 +741,11 @@
 /turf/open/floor/plasteel/dark,
 /area/ship/security)
 "eS" = (
-/obj/structure/reagent_dispensers/watertank,
 /obj/machinery/light/directional/west,
+/obj/machinery/power/ship_gravity,
+/obj/structure/cable{
+	icon_state = "0-4"
+	},
 /turf/open/floor/plating,
 /area/ship/engineering)
 "eT" = (
@@ -4074,6 +4077,7 @@
 /obj/structure/cable{
 	icon_state = "2-8"
 	},
+/obj/structure/reagent_dispensers/watertank,
 /turf/open/floor/plating,
 /area/ship/engineering)
 "Bg" = (
@@ -7449,6 +7453,9 @@
 /obj/structure/cable{
 	icon_state = "1-4"
 	},
+/obj/structure/cable{
+	icon_state = "4-8"
+	},
 /turf/open/floor/plating,
 /area/ship/engineering)
 "Yu" = (

_maps/shuttles/independent/independent_mudskipper.dmm

@@ -162,6 +162,7 @@
 	name = "Engine Shutters"
 	},
 /obj/machinery/cell_charger,
+/obj/item/storage/toolbox/mechanical,
 /turf/open/floor/plasteel/tech/grid,
 /area/ship/engineering/engine)
 "dN" = (
@@ -384,6 +385,9 @@
 /obj/structure/cable{
 	icon_state = "1-8"
 	},
+/obj/structure/cable{
+	icon_state = "1-2"
+	},
 /turf/open/floor/plating,
 /area/ship/engineering/engine)
 "ib" = (
@@ -876,10 +880,10 @@
 /obj/structure/railing{
 	dir = 8
 	},
-/obj/structure/table/reinforced{
-	color = "#c1b6a5"
+/obj/structure/cable{
+	icon_state = "0-1"
 	},
-/obj/item/storage/toolbox/mechanical,
+/obj/machinery/power/ship_gravity,
 /turf/open/floor/plasteel/tech,
 /area/ship/engineering/engine)
 "sT" = (
@@ -1638,9 +1642,6 @@
 /area/ship/hallway/aft)
 "KA" = (
 /obj/structure/window/reinforced/spawner,
-/obj/structure/table/reinforced{
-	color = "#c1b6a5"
-	},
 /obj/item/paper_bin,
 /obj/item/analyzer{
 	pixel_y = 3;
@@ -1653,6 +1654,9 @@
 /obj/structure/cable{
 	icon_state = "1-8"
 	},
+/obj/structure/table/reinforced{
+	color = "#c1b6a5"
+	},
 /turf/open/floor/plasteel/tech/grid,
 /area/ship/engineering/engine)
 "KT" = (

_maps/shuttles/independent/independent_rigger.dmm

@@ -760,10 +760,16 @@
 /turf/open/floor/plasteel/tech/techmaint,
 /area/ship/crew)
 "jx" = (
-/obj/machinery/power/apc/auto_name/directional/north,
 /obj/structure/cable{
-	icon_state = "0-4"
+	icon_state = "4-8"
+	},
+/obj/structure/closet/wall/orange/directional/north{
+	name = "fuel supply"
 	},
+/obj/item/stack/sheet/mineral/uranium/five,
+/obj/item/stack/sheet/mineral/plasma/fifty,
+/obj/effect/turf_decal/radiation,
+/obj/effect/turf_decal/industrial/outline/yellow,
 /turf/open/floor/plasteel/tech,
 /area/ship/engineering/engine)
 "jy" = (
@@ -2334,8 +2340,8 @@
 /obj/machinery/atmospherics/pipe/simple/supply/hidden/layer2{
 	dir = 4
 	},
-/obj/machinery/light/small/directional/north,
 /obj/structure/catwalk/over,
+/obj/machinery/light/small/directional/north,
 /turf/open/floor/plating,
 /area/ship/engineering/atmospherics)
 "BZ" = (
@@ -2462,13 +2468,17 @@
 /turf/open/floor/plasteel/tech/techmaint,
 /area/ship/engineering)
 "DE" = (
-/obj/effect/spawner/lootdrop/maintenance,
-/obj/structure/sign/warning/nosmoking{
-	pixel_y = 32
-	},
 /obj/effect/turf_decal/industrial/warning{
 	dir = 8
 	},
+/obj/structure/cable{
+	icon_state = "4-10"
+	},
+/obj/machinery/power/apc/auto_name/directional/north,
+/obj/structure/cable{
+	icon_state = "0-4"
+	},
+/obj/effect/spawner/lootdrop/maintenance,
 /turf/open/floor/plasteel/tech,
 /area/ship/engineering/engine)
 "DG" = (
@@ -4036,11 +4046,11 @@
 /obj/structure/cable/yellow{
 	icon_state = "1-4"
 	},
-/obj/structure/closet/crate,
-/obj/item/stack/sheet/mineral/uranium/five,
-/obj/item/stack/sheet/mineral/plasma/fifty,
-/obj/effect/turf_decal/industrial/outline/yellow,
-/obj/effect/turf_decal/radiation,
+/obj/machinery/power/ship_gravity,
+/obj/structure/cable{
+	icon_state = "0-5"
+	},
+/obj/effect/turf_decal/industrial/hatch/yellow,
 /turf/open/floor/plasteel/tech,
 /area/ship/engineering/engine)
 "Vo" = (
@@ -4184,6 +4194,9 @@
 /obj/structure/cable{
 	icon_state = "4-8"
 	},
+/obj/structure/sign/warning/nosmoking{
+	pixel_y = 32
+	},
 /turf/open/floor/plasteel/tech,
 /area/ship/engineering/engine)
 "WO" = (