var/global/list -> GLOB. conversion (#17928)

* These two are easy

* !!!runlevel_flags

the fact it was global.runlevel_flags.len has me a bit...iffy on this.

* !!!json_cache

Same as above. used global.

* player_list & observer_mob_list

* mechas_list

* this wasn't even used

* surgery_steps

* event_triggers

* landmarks_list

* dead_mob_list

* living_mob_list

* ai_list

* cable_list

* cleanbot_reserved_turfs

* listening_objects

* silicon_mob_list

* human_mob_list

* Update global_lists.dm

* joblist

* mob_list

* Update global_lists.dm

* holomap_markers

* mapping_units

* mapping_beacons

* hair_styles_list

* facial_hair_styles_list

* Update global_lists.dm

* facial_hair_styles_male_list

* facial_hair_styles_female_list

* body_marking_styles_list

* body_marking_nopersist_list

* ear_styles_list

* hair_styles_male_list

* tail_styles_list

* wing_styles_list

* escape_list & rune_list & endgame_exits

these were all really small

* endgame_safespawns

* stool_cache

* emotes_by_key

* random_maps & map_count

* item_tf_spawnpoints

* narsie_list

* active_radio_jammers

* unused

* paikeys

* pai_software_by_key & default_pai_software

* plant_seed_sprites

* magazine_icondata_keys  & magazine_icondata_states

* unused

* ashtray_cache

* light_type_cache

* HOLIDAY!!!

this one was annoying

* faction stuff (red?!)

* Update preferences_factions.dm

* vs edit removal

* backbaglist, pdachoicelist, exclude_jobs

* item_digestion_blacklist, edible_tech, blacklisted_artifact_effect, selectable_footstep, hexNums, syndicate_access

* string_slot_flags and hexdigits->hexNums

* possible_changeling_IDs

* vr_mob_tf_options

* vr_mob_spawner_options

* pipe_colors

* vr_mob_spawner_options

* common_tools

* newscaster_standard_feeds

* Update periodic_news.dm

* changeling_fabricated_clothing

* semirandom_mob_spawner_decisions

* id_card_states

* Update syndicate_ids.dm

* overlay_cache & gear_distributed_to

* more

* radio_channels_by_freq

* Update global_lists.dm

* proper

* default_medbay_channels & default_internal_channels

default_internal_channels is weird as it has a mapbased proc() but that proc is never called...

* valid_ringtones

* move this

* possible_plants

* more

* separate these

moves xeno2chemlist from a hook to a new global list.

* tube_dir_list

* valid_bloodreagents & monitor_states

* Junk

* valid_bloodtypes

* breach_burn_descriptors & burn

* more!!

appliance_available_recipes seems uber cursed, re-look at later

* Appliance code is cursed

* wide_chassis & flying_chassis

* allows_eye_color

* all_tooltip_styles

* direction_table

* gun_choices

* severity_to_string

* old event_viruses

* description_icons

* MOVE_KEY_MAPPINGS

* more more

* pai & robot modules

* Update global_lists.dm

* GEOSAMPLES

Also swaps a .len to LAZYLEN()

* shieldgens

* reagent recipies

* global ammo types

* rad collector

* old file and unused global

* nif_look_messages

* FESH

* nifsoft

* chamelion

* the death of sortAtom

* globulins

* lazylen that

* Update global_lists.dm

* LAZY

* Theese too

* quick fix

---------

Co-authored-by: Kashargul <144968721+Kashargul@users.noreply.github.com>

code/game/objects/effects/decals/Cleanable/humans.dm

@@ -1,7 +1,5 @@
 #define DRYING_TIME 5 * 60*10                        //for 1 unit of depth in puddle (amount var)
 
-var/global/list/image/splatter_cache=list()
-
 /obj/effect/decal/cleanable/blood
 	name = "blood"
 	var/dryname = "dried blood"

code/game/objects/effects/decals/Cleanable/tracks.dm

@@ -3,9 +3,6 @@
 // 5 seconds
 #define TRACKS_CRUSTIFY_TIME   50
 
-// color-dir-dry
-var/global/list/image/fluidtrack_cache=list()
-
 /datum/fluidtrack
 	var/direction=0
 	var/basecolor="#A10808"

code/game/objects/effects/landmarks.dm

@@ -60,10 +60,10 @@
 			GLOB.xeno_spawn += loc
 			delete_me = TRUE
 		if("endgame_exit")
-			endgame_safespawns += loc
+			GLOB.endgame_safespawns += loc
 			delete_me = TRUE
 		if("bluespacerift")
-			endgame_exits += loc
+			GLOB.endgame_exits += loc
 			delete_me = TRUE
 		//VOREStation Add Start
 		if("vinestart")
@@ -74,11 +74,11 @@
 	if(delete_me)
 		return INITIALIZE_HINT_QDEL
 	else
-		landmarks_list += src
+		GLOB.landmarks_list += src
 
 /obj/effect/landmark/Destroy(var/force = FALSE)
 	if(force)
-		landmarks_list -= src
+		GLOB.landmarks_list -= src
 		return ..()
 	return QDEL_HINT_LETMELIVE
 

code/game/objects/effects/landmarks_events.dm

@@ -26,9 +26,9 @@ Admin verb is called by code\modules\admin\verbs\event_triggers.dm
 		return
 	name = new_name
 	creator_ckey = M.ckey
-	if(!event_triggers[creator_ckey])
-		event_triggers[creator_ckey] = list()
-	event_triggers[creator_ckey] |= list(src)
+	if(!GLOB.event_triggers[creator_ckey])
+		GLOB.event_triggers[creator_ckey] = list()
+	GLOB.event_triggers[creator_ckey] |= list(src)
 	isTeamwork = (tgui_alert(M, "Notify rest of team?", "Teamwork", list("No", "Yes")) == "Yes" ? TRUE : FALSE)
 	if(!isTeamwork)
 		isLoud = (tgui_alert(M, "Should it make a bwoink when triggered for YOU?", "bwoink", list("No", "Yes")) == "Yes" ? TRUE : FALSE)
@@ -41,8 +41,8 @@ Admin verb is called by code\modules\admin\verbs\event_triggers.dm
 	log_admin("[M.ckey] has created a [isNarrate ? "Narrtion" : "Notification"] landmark trigger at [coordinates]")
 
 /obj/effect/landmark/event_trigger/Destroy()
-	if(event_triggers[creator_ckey])
-		event_triggers[creator_ckey] -= src
+	if(GLOB.event_triggers[creator_ckey])
+		GLOB.event_triggers[creator_ckey] -= src
 	. = ..()
 
 /obj/effect/landmark/event_trigger/Crossed(var/atom/movable/AM)

code/game/objects/effects/manifest.dm

@@ -11,7 +11,7 @@
 
 /obj/effect/manifest/proc/manifest()
 	var/dat = span_bold("Crew Manifest") + ":<BR>"
-	for(var/mob/living/carbon/human/M in mob_list)
+	for(var/mob/living/carbon/human/M in GLOB.mob_list)
 		dat += text("    <B>[]</B> -  []<BR>", M.name, M.get_assignment())
 	var/obj/item/paper/P = new /obj/item/paper( src.loc )
 	P.info = dat

code/game/objects/effects/map_effects/map_effects.dm

@@ -58,8 +58,8 @@
 	if(!proximity_to)
 		return FALSE
 
-	for(var/thing in player_list)
-		var/mob/M = thing // Avoiding typechecks for more speed, player_list will only contain mobs anyways.
+	for(var/thing in GLOB.player_list)
+		var/mob/M = thing // Avoiding typechecks for more speed, GLOB.player_list will only contain mobs anyways.
 		if(ignore_ghosts && isobserver(M))
 			continue
 		if(ignore_afk && M.client && M.client.is_afk(5 MINUTES))

code/game/objects/effects/map_effects/screen_shaker.dm

@@ -11,7 +11,7 @@
 	var/shake_strength = 1 // How much it shakes.
 
 /obj/effect/map_effect/interval/screen_shaker/trigger()
-	for(var/mob/M as anything in player_list)
+	for(var/mob/M as anything in GLOB.player_list)
 		if(M.z == src.z && get_dist(src, M) <= shake_radius)
 			shake_camera(M, shake_duration, shake_strength)
 	..()

code/game/objects/effects/semirandom_mobs_vr.dm

@@ -1,5 +1,3 @@
-var/global/list/semirandom_mob_spawner_decisions = list()
-
 /obj/random/mob/semirandom_mob_spawner
 	name = "Semi-Random Spawner"
 	desc = "Spawns groups of mobs that are all of the same theme type/theme."
@@ -308,11 +306,11 @@ var/global/list/semirandom_mob_spawner_decisions = list()
 		)
 
 /obj/random/mob/semirandom_mob_spawner/item_to_spawn()
-	var/list/choice = semirandom_mob_spawner_decisions[type]
+	var/list/choice = GLOB.semirandom_mob_spawner_decisions[type]
 
 	if(!choice)
 		choice = pickweight(possible_mob_types)
-		semirandom_mob_spawner_decisions[type] = choice
+		GLOB.semirandom_mob_spawner_decisions[type] = choice
 
 	return pickweight(choice)
 

code/game/objects/effects/temporary_visuials/temproary_visual.dm

@@ -11,7 +11,7 @@
 /obj/effect/temp_visual/Initialize(mapload)
 	. = ..()
 	if(randomdir)
-		set_dir(pick(global.GLOB.cardinal))
+		set_dir(pick(GLOB.cardinal))
 
 	spawn(duration)
 		qdel(src)

code/game/objects/explosion.dm

@@ -31,7 +31,7 @@
 		far_dist += heavy_impact_range * 5
 		far_dist += devastation_range * 20
 		var/frequency = get_rand_frequency()
-		for(var/mob/M in player_list)
+		for(var/mob/M in GLOB.player_list)
 			if(M.z == epicenter.z)
 				var/turf/M_turf = get_turf(M)
 				var/dist = get_dist(M_turf, epicenter)
@@ -45,7 +45,7 @@
 
 		var/close = range(world.view+round(devastation_range,1), epicenter)
 		// to all distanced mobs play a different sound
-		for(var/mob/M in player_list)
+		for(var/mob/M in GLOB.player_list)
 			if(M.z == epicenter.z)
 				if(!(M in close))
 					// check if the mob can hear

code/game/objects/items.dm

@@ -140,7 +140,7 @@
 
 /obj/item/Destroy()
 	if(item_tf_spawn_allowed)
-		item_tf_spawnpoints -= src
+		GLOB.item_tf_spawnpoints -= src
 	if(ismob(loc))
 		var/mob/m = loc
 		m.drop_from_inventory(src)
@@ -1122,12 +1122,12 @@ Note: This proc can be overwritten to allow for different types of auto-alignmen
 /obj/item/proc/item_tf_spawnpoint_set()
 	if(!item_tf_spawn_allowed)
 		item_tf_spawn_allowed = TRUE
-		item_tf_spawnpoints += src
+		GLOB.item_tf_spawnpoints += src
 
 /obj/item/proc/item_tf_spawnpoint_used()
 	if(item_tf_spawn_allowed)
 		item_tf_spawn_allowed = FALSE
-		item_tf_spawnpoints -= src
+		GLOB.item_tf_spawnpoints -= src
 
 // Ported from TG, used when dropping items on tables/closets.
 /obj/item/proc/do_drop_animation(atom/moving_from)

code/game/objects/items/devices/ai_detector.dm

@@ -37,7 +37,7 @@
 	var/mob/living/carrier = isliving(loc) ? loc : null
 
 	// First, let's check if any AIs are actively tracking them.
-	for(var/mob/living/silicon/ai/AI in silicon_mob_list)
+	for(var/mob/living/silicon/ai/AI in GLOB.silicon_mob_list)
 		if(carrier && AI.cameraFollow == carrier)
 			if(!carrier.tracking_status()) // Successful tracking returns a 0, so we need to invert it.
 				return PROXIMITY_TRACKING

code/game/objects/items/devices/communicator/UI_tgui.dm

@@ -384,7 +384,7 @@
 				log_pda("(COMM: [src]) sent \"[text]\" to [exonet.get_atom_from_address(their_address)]", ui.user)
 				var/obj/item/communicator/comm = exonet.get_atom_from_address(their_address)
 				to_chat(ui.user, span_notice("[icon2html(src, ui.user.client)] Sent message to [istype(comm, /obj/item/communicator) ? comm.owner : comm.name], <b>\"[text]\"</b> (<a href='byond://?src=\ref[src];action=Reply;target=\ref[exonet.get_atom_from_address(comm.exonet.address)]'>Reply</a>)"))
-				for(var/mob/M in player_list)
+				for(var/mob/M in GLOB.player_list)
 					if(M.stat == DEAD && M.client?.prefs?.read_preference(/datum/preference/toggle/ghost_ears))
 						if(isnewplayer(M) || M.forbid_seeing_deadchat)
 							continue

code/game/objects/items/devices/communicator/communicator.dm

@@ -2,8 +2,6 @@
 //
 // Allows ghosts to roleplay with crewmembers without having to commit to joining the round, and also allows communications between two communicators.
 
-var/global/list/obj/item/communicator/all_communicators = list() //Don't change this to GLOBAL_LIST_EMPTY_TYPED(all_communicators, /obj/item/communicator) for now. Sortatoms goes berserk.
-
 // List of core tabs the communicator can switch to
 #define HOMETAB 1
 #define PHONTAB 2
@@ -98,7 +96,7 @@ var/global/list/obj/item/communicator/all_communicators = list() //Don't change
 /obj/item/communicator/Initialize(mapload)
 	. = ..()
 	all_communicators += src
-	all_communicators = sortAtom(all_communicators)
+	all_communicators = sort_names(all_communicators)
 	node = get_exonet_node()
 	START_PROCESSING(SSobj, src)
 	camera = new(src)
@@ -191,7 +189,7 @@ var/global/list/obj/item/communicator/all_communicators = list() //Don't change
 		if(!comm || !comm.exonet || !comm.exonet.address || comm.exonet.address == src.exonet.address) //Don't add addressless devices, and don't add ourselves.
 			continue
 		src.known_devices |= comm
-	for(var/mob/observer/dead/O in dead_mob_list)
+	for(var/mob/observer/dead/O in GLOB.dead_mob_list)
 		if(!O.client || O.client.prefs.communicator_visibility == 0)
 			continue
 		src.known_devices |= O
@@ -316,7 +314,7 @@ var/global/list/obj/item/communicator/all_communicators = list() //Don't change
 	//Clean up references that might point at us
 	all_communicators -= src
 	STOP_PROCESSING(SSobj, src)
-	listening_objects.Remove(src)
+	GLOB.listening_objects.Remove(src)
 	QDEL_NULL(camera)
 	QDEL_NULL(exonet)
 

code/game/objects/items/devices/communicator/messaging.dm

@@ -128,7 +128,7 @@
 	if (usr != src)
 		return //something is terribly wrong
 
-	for(var/mob/living/L in mob_list) //Simple check so you don't have dead people calling.
+	for(var/mob/living/L in GLOB.mob_list) //Simple check so you don't have dead people calling.
 		if(src.client.prefs.real_name == L.real_name)
 			to_chat(src, span_danger("Your identity is already present in the game world.  Please load in a different character first."))
 			return
@@ -160,7 +160,7 @@
 			to_chat(src, span_notice("You have sent '[text_message]' to [chosen_communicator]."))
 			exonet_messages.Add(span_bold("To [chosen_communicator]:") + "<br>[text_message]")
 			log_pda("(DCOMM: [src]) sent \"[text_message]\" to [chosen_communicator]", src)
-			for(var/mob/M in player_list)
+			for(var/mob/M in GLOB.player_list)
 				if(M.stat == DEAD && M.client?.prefs?.read_preference(/datum/preference/toggle/ghost_ears))
 					if(isnewplayer(M) || M.forbid_seeing_deadchat)
 						continue

code/game/objects/items/devices/communicator/phone.dm

@@ -5,7 +5,7 @@
 	if(!comm || !istype(comm)) return
 
 	communicating |= comm
-	listening_objects |= src
+	GLOB.listening_objects |= src
 	update_icon()
 
 // Proc: del_communicating()
@@ -73,7 +73,7 @@
 	new_voice.mind = candidate.mind			//Transfer the mind, if any.
 	new_voice.ckey = candidate.ckey			//Finally, bring the client over.
 	voice_mobs.Add(new_voice)
-	listening_objects |= src
+	GLOB.listening_objects |= src
 
 	var/obj/screen/blackness = new() 	//Makes a black screen, so the candidate can't see what's going on before actually 'connecting' to the communicator.
 	blackness.screen_loc = ui_entire_screen
@@ -139,7 +139,7 @@
 			comm.end_video()
 
 	if(voice_mobs.len == 0 && communicating.len == 0)
-		listening_objects.Remove(src)
+		GLOB.listening_objects.Remove(src)
 
 // Proc: request()
 // Parameters: 1 (candidate - the ghost or communicator wanting to call the device)
@@ -294,7 +294,7 @@
 		to_chat(src, span_danger("You have used the antagHUD and cannot respawn or use communicators!"))
 		return
 
-	for(var/mob/living/L in mob_list) //Simple check so you don't have dead people calling.
+	for(var/mob/living/L in GLOB.mob_list) //Simple check so you don't have dead people calling.
 		if(src.client.prefs.real_name == L.real_name)
 			to_chat(src, span_danger("Your identity is already present in the game world.  Please load in a different character first."))
 			return

code/game/objects/items/devices/defib.dm

@@ -488,10 +488,10 @@
 	add_attack_logs(user,H,"Shocked using [name]")
 
 /obj/item/shockpaddles/proc/make_alive(mob/living/carbon/human/M) //This revives the mob
-	dead_mob_list.Remove(M)
-	if((M in living_mob_list) || (M in dead_mob_list))
+	GLOB.dead_mob_list.Remove(M)
+	if((M in GLOB.living_mob_list) || (M in GLOB.dead_mob_list))
 		WARNING("Mob [M] was defibbed but already in the living or dead list still!")
-	living_mob_list += M
+	GLOB.living_mob_list += M
 
 	M.timeofdeath = 0
 	M.set_stat(UNCONSCIOUS) //Life() can bring them back to consciousness if it needs to.

code/game/objects/items/devices/paicard.dm

@@ -1,22 +1,3 @@
-var/global/list/radio_channels_by_freq = list(
-	num2text(PUB_FREQ) = CHANNEL_COMMON,
-	num2text(AI_FREQ)  = CHANNEL_AI_PRIVATE,
-	num2text(ENT_FREQ) = CHANNEL_ENTERTAINMENT,
-	num2text(ERT_FREQ) = CHANNEL_RESPONSE_TEAM,
-	num2text(COMM_FREQ)= CHANNEL_COMMAND,
-	num2text(ENG_FREQ) = CHANNEL_ENGINEERING,
-	num2text(MED_FREQ) = CHANNEL_MEDICAL,
-	num2text(MED_I_FREQ)=CHANNEL_MEDICAL_1,
-	num2text(SEC_FREQ) = CHANNEL_SECURITY,
-	num2text(SEC_I_FREQ)=CHANNEL_SECURITY_1,
-	num2text(SCI_FREQ) = CHANNEL_SCIENCE,
-	num2text(SUP_FREQ) = CHANNEL_SUPPLY,
-	num2text(SRV_FREQ) = CHANNEL_SERVICE,
-	num2text(EXP_FREQ) = CHANNEL_EXPLORATION
-	)
-
-GLOBAL_LIST_BOILERPLATE(all_pai_cards, /obj/item/paicard)
-
 /obj/item/paicard
 	name = "personal AI device"
 	icon = 'icons/obj/pda.dmi'
@@ -73,7 +54,7 @@ GLOBAL_LIST_BOILERPLATE(all_pai_cards, /obj/item/paicard)
 		to_chat(user,span_warning("You cannot join a pAI card when you are banned from playing as a pAI."))
 		return
 
-	for(var/ourkey in paikeys)
+	for(var/ourkey in GLOB.paikeys)
 		if(ourkey == user.ckey)
 			to_chat(user, span_warning("You can't just rejoin any old pAI card!!! Your card still exists."))
 			return
@@ -96,14 +77,14 @@ GLOBAL_LIST_BOILERPLATE(all_pai_cards, /obj/item/paicard)
 			var/obj/item/paicard/typeb/card = new(location)
 			var/mob/living/silicon/pai/new_pai = new(card)
 			new_pai.key = user.key
-			paikeys |= new_pai.ckey
+			GLOB.paikeys |= new_pai.ckey
 			card.setPersonality(new_pai)
 			new_pai.SetName(actual_pai_name)
 		else
 			var/obj/item/paicard/card = new(location)
 			var/mob/living/silicon/pai/new_pai = new(card)
 			new_pai.key = user.key
-			paikeys |= new_pai.ckey
+			GLOB.paikeys |= new_pai.ckey
 			card.setPersonality(new_pai)
 			new_pai.SetName(actual_pai_name)
 
@@ -112,7 +93,7 @@ GLOBAL_LIST_BOILERPLATE(all_pai_cards, /obj/item/paicard)
 			var/obj/item/paicard/typeb/card = new(location)
 			var/mob/living/silicon/pai/new_pai = new(card)
 			new_pai.key = user.key
-			paikeys |= new_pai.ckey
+			GLOB.paikeys |= new_pai.ckey
 			card.setPersonality(new_pai)
 			if(!new_pai.savefile_load(new_pai))
 				var/pai_name = tgui_input_text(new_pai, "Choose your character's name", "Character Name")
@@ -123,7 +104,7 @@ GLOBAL_LIST_BOILERPLATE(all_pai_cards, /obj/item/paicard)
 			var/obj/item/paicard/card = new(location)
 			var/mob/living/silicon/pai/new_pai = new(card)
 			new_pai.key = user.key
-			paikeys |= new_pai.ckey
+			GLOB.paikeys |= new_pai.ckey
 			card.setPersonality(new_pai)
 			if(!new_pai.savefile_load(new_pai))
 				var/pai_name = tgui_input_text(new_pai, "Choose your character's name", "Character Name")
@@ -517,7 +498,7 @@ GLOBAL_LIST_BOILERPLATE(all_pai_cards, /obj/item/paicard)
 	channels = list()
 
 	for(var/internal_chan in internal_channels)
-		var/ch_name = radio_channels_by_freq[internal_chan]
+		var/ch_name = GLOB.radio_channels_by_freq[internal_chan]
 		if(has_channel_access(card.pai, internal_chan))
 			channels += ch_name
 			channels[ch_name] = 1

code/game/objects/items/devices/paicard_vr.dm

@@ -1,4 +1,4 @@
-var/global/list/paikeys = list()
+GLOBAL_LIST_EMPTY(paikeys)
 
 /obj/item/paicard
 	var/panel_open = FALSE

code/game/objects/items/devices/pipe_painter.dm

@@ -11,7 +11,7 @@
 /obj/item/pipe_painter/Initialize(mapload)
 	. = ..()
 	modes = new()
-	for(var/C in pipe_colors)
+	for(var/C in GLOB.pipe_colors)
 		modes += "[C]"
 	mode = pick(modes)
 
@@ -23,7 +23,7 @@
 		return
 	var/obj/machinery/atmospherics/pipe/P = A
 
-	P.change_color(pipe_colors[mode])
+	P.change_color(GLOB.pipe_colors[mode])
 
 /obj/item/pipe_painter/attack_self(mob/user as mob)
 	var/new_mode = tgui_input_list(user, "Which colour do you want to use?", "Pipe painter", modes)

code/game/objects/items/devices/radio/intercom.dm

@@ -87,7 +87,7 @@
 
 /obj/item/radio/intercom/department/medbay/Initialize(mapload)
 	. = ..()
-	internal_channels = default_medbay_channels.Copy()
+	internal_channels = GLOB.default_medbay_channels.Copy()
 
 /obj/item/radio/intercom/department/security/Initialize(mapload)
 	. = ..()

code/game/objects/items/devices/radio/jammer.dm

@@ -1,4 +1,4 @@
-var/global/list/active_radio_jammers = list()
+GLOBAL_LIST_EMPTY(active_radio_jammers)
 
 /proc/is_jammed(var/obj/radio)
 	var/turf/Tr = get_turf(radio)
@@ -9,7 +9,7 @@ var/global/list/active_radio_jammers = list()
 	if(our_area.no_comms)
 		return TRUE
 
-	for(var/obj/item/radio_jammer/J as anything in active_radio_jammers)
+	for(var/obj/item/radio_jammer/J as anything in GLOB.active_radio_jammers)
 		var/turf/Tj = get_turf(J)
 
 		if(J.on && Tj.z == Tr.z) //If we're on the same Z, it's worth checking.
@@ -52,7 +52,7 @@ var/global/list/active_radio_jammers = list()
 	if(user)
 		to_chat(user,span_warning("\The [src] deactivates."))
 	STOP_PROCESSING(SSobj, src)
-	active_radio_jammers -= src
+	GLOB.active_radio_jammers -= src
 	on = FALSE
 	update_icon()
 
@@ -60,7 +60,7 @@ var/global/list/active_radio_jammers = list()
 	if(user)
 		to_chat(user,span_notice("\The [src] is now active."))
 	START_PROCESSING(SSobj, src)
-	active_radio_jammers += src
+	GLOB.active_radio_jammers += src
 	on = TRUE
 	update_icon()
 

code/game/objects/items/devices/radio/radio.dm

@@ -1,27 +1,4 @@
 #define CANBROADCAST_INNERBOX 0.7071067811865476	//This is sqrt(2)/2
-// Access check is of the type requires one. These have been carefully selected to avoid allowing the janitor to see channels he shouldn't
-var/global/list/default_internal_channels = list(
-	num2text(PUB_FREQ) = list(),
-	num2text(AI_FREQ)  = list(access_synth),
-	num2text(ENT_FREQ) = list(),
-	num2text(ERT_FREQ) = list(access_cent_specops),
-	num2text(COMM_FREQ)= list(access_heads),
-	num2text(ENG_FREQ) = list(access_engine_equip, access_atmospherics),
-	num2text(MED_FREQ) = list(access_medical_equip),
-	num2text(MED_I_FREQ)=list(access_medical_equip),
-	num2text(SEC_FREQ) = list(access_security),
-	num2text(SEC_I_FREQ)=list(access_security),
-	num2text(SCI_FREQ) = list(access_tox, access_robotics, access_xenobiology),
-	num2text(SUP_FREQ) = list(access_cargo, access_mining_station),
-	num2text(SRV_FREQ) = list(access_janitor, access_library, access_hydroponics, access_bar, access_kitchen),
-	num2text(EXP_FREQ) = list(access_explorer)
-)
-
-var/global/list/default_medbay_channels = list(
-	num2text(PUB_FREQ) = list(),
-	num2text(MED_FREQ) = list(),
-	num2text(MED_I_FREQ) = list()
-)
 
 /obj/item/radio
 	icon = 'icons/obj/radio_vr.dmi'
@@ -83,8 +60,8 @@ var/global/list/default_medbay_channels = list(
 		secure_radio_connections[ch_name] = radio_controller.add_object(src, radiochannels[ch_name],  RADIO_CHAT)
 
 	wires = new(src)
-	internal_channels = default_internal_channels.Copy()
-	listening_objects += src
+	internal_channels = GLOB.default_internal_channels.Copy()
+	GLOB.listening_objects += src
 
 	if(bluespace_radio && (bs_tx_preload_id || bs_rx_preload_id))
 		return INITIALIZE_HINT_LATELOAD
@@ -128,7 +105,7 @@ var/global/list/default_medbay_channels = list(
 /obj/item/radio/Destroy()
 	qdel(wires)
 	wires = null
-	listening_objects -= src
+	GLOB.listening_objects -= src
 	if(radio_controller)
 		radio_controller.remove_object(src, frequency)
 		for (var/ch_name in channels)
@@ -766,7 +743,7 @@ GLOBAL_DATUM(autospeaker, /mob/living/silicon/ai/announcer)
 
 /obj/item/radio/phone/medbay/Initialize(mapload)
 	. = ..()
-	internal_channels = default_medbay_channels.Copy()
+	internal_channels = GLOB.default_medbay_channels.Copy()
 
 /obj/item/radio/proc/can_broadcast_to()
 	var/list/output = list()

code/game/objects/items/devices/radio/radio_vr.dm

@@ -12,7 +12,7 @@
 
 /obj/item/radio/emergency/Initialize(mapload)
 	. = ..()
-	internal_channels = default_medbay_channels.Copy()
+	internal_channels = GLOB.default_medbay_channels.Copy()
 
 
 

code/game/objects/items/devices/scanners/sleevemate.dm

@@ -192,7 +192,7 @@ var/global/mob/living/carbon/human/dummy/mannequin/sleevemate_mob
 		return
 
 	var/target_ref = href_list["target"]
-	var/mob/living/target = locate(target_ref) in mob_list
+	var/mob/living/target = locate(target_ref) in GLOB.mob_list
 	if(!target)
 		to_chat(usr,span_warning("Unable to operate on that target."))
 		return

code/game/objects/items/devices/t_scanner.dm

@@ -1,4 +1,4 @@
-#define OVERLAY_CACHE_LEN 50
+#define overlay_cache_LEN 50
 
 /obj/item/t_scanner
 	name = "\improper T-ray scanner"
@@ -18,8 +18,6 @@
 	var/client/user_client //since making sure overlays are properly added and removed is pretty important, so we track the current user explicitly
 	var/flicker = 0
 
-	var/global/list/overlay_cache = list() //cache recent overlays
-
 	pickup_sound = 'sound/items/pickup/device.ogg'
 	drop_sound = 'sound/items/drop/device.ogg'
 
@@ -82,8 +80,8 @@
 /obj/item/t_scanner/proc/get_overlay(obj/scanned)
 	//Use a cache so we don't create a whole bunch of new images just because someone's walking back and forth in a room.
 	//Also means that images are reused if multiple people are using t-rays to look at the same objects.
-	if(scanned in overlay_cache)
-		. = overlay_cache[scanned]
+	if(scanned in GLOB.overlay_cache)
+		. = GLOB.overlay_cache[scanned]
 	else
 		var/image/I = image(loc = scanned, icon = scanned.icon, icon_state = scanned.icon_state, layer = HUD_LAYER)
 
@@ -98,9 +96,9 @@
 		. = I
 
 	// Add it to cache, cutting old entries if the list is too long
-	overlay_cache[scanned] = .
-	if(overlay_cache.len > OVERLAY_CACHE_LEN)
-		overlay_cache.Cut(1, overlay_cache.len-OVERLAY_CACHE_LEN-1)
+	GLOB.overlay_cache[scanned] = .
+	if(GLOB.overlay_cache.len > overlay_cache_LEN)
+		GLOB.overlay_cache.Cut(1, GLOB.overlay_cache.len-overlay_cache_LEN-1)
 
 /obj/item/t_scanner/proc/get_scanned_objects(var/scan_dist)
 	. = list()
@@ -152,4 +150,4 @@
 	scan_range = 7
 
 
-#undef OVERLAY_CACHE_LEN
+#undef overlay_cache_LEN

code/game/objects/items/devices/taperecorder.dm

@@ -26,13 +26,13 @@
 	if(ispath(mytape))
 		mytape = new mytape(src)
 		update_icon()
-	listening_objects += src
+	GLOB.listening_objects += src
 
 /obj/item/taperecorder/empty
 	mytape = null
 
 /obj/item/taperecorder/Destroy()
-	listening_objects -= src
+	GLOB.listening_objects -= src
 	if(mytape)
 		qdel(mytape)
 		mytape = null

code/game/objects/items/devices/translator.dm

@@ -24,13 +24,13 @@
 				return
 			else
 				listening = 1
-				listening_objects |= src
+				GLOB.listening_objects |= src
 				if(mult_icons)
 					icon_state = "[initial(icon_state)]1"
 				to_chat(user, span_notice("You enable \the [src], translating into [langset.name]."))
 	else	//Turning OFF
 		listening = 0
-		listening_objects -= src
+		GLOB.listening_objects -= src
 		langset = null
 		icon_state = "[initial(icon_state)]"
 		to_chat(user, span_notice("You disable \the [src]."))

code/game/objects/items/devices/tvcamera.dm

@@ -16,10 +16,10 @@
 
 /obj/item/tvcamera/Initialize(mapload)
 	. = ..()
-	listening_objects += src
+	GLOB.listening_objects += src
 
 /obj/item/tvcamera/Destroy()
-	listening_objects -= src
+	GLOB.listening_objects -= src
 	qdel(camera)
 	qdel(radio)
 	camera = null

code/game/objects/items/robot/robot_parts.dm

@@ -175,7 +175,7 @@
 				if(!M.brainmob.key)
 					var/ghost_can_reenter = 0
 					if(M.brainmob.mind)
-						for(var/mob/observer/dead/G in player_list)
+						for(var/mob/observer/dead/G in GLOB.player_list)
 							if(G.can_reenter_corpse && G.mind == M.brainmob.mind)
 								ghost_can_reenter = 1 //May come in use again at another point.
 								to_chat(user, span_notice("\The [W] is completely unresponsive; though it may be able to auto-resuscitate.")) //Jamming a ghosted brain into a borg is likely detrimental, and may result in some problems.

code/game/objects/items/robot/robot_upgrades.dm

@@ -86,14 +86,14 @@
 		return 0
 
 	if(!R.key)
-		for(var/mob/observer/dead/ghost in player_list)
+		for(var/mob/observer/dead/ghost in GLOB.player_list)
 			if(ghost.mind && ghost.mind.current == R)
 				R.key = ghost.key
 
 	R.set_stat(CONSCIOUS)
 	R.add_robot_verbs()
-	dead_mob_list -= R
-	living_mob_list |= R
+	GLOB.dead_mob_list -= R
+	GLOB.living_mob_list |= R
 	R.notify_ai(ROBOT_NOTIFICATION_NEW_UNIT)
 	return 1
 

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

@@ -48,9 +48,6 @@
 
 	slowdown = round(amount / 10, 0.1)
 
-var/global/list/datum/stack_recipe/sandbag_recipes = list( \
-	new/datum/stack_recipe("barricade", /obj/structure/barricade/sandbag, 3, time = 5 SECONDS, one_per_turf = 1, on_floor = 1, pass_stack_color = TRUE))
-
 /obj/item/stack/sandbags/produce_recipe(datum/stack_recipe/recipe, var/quantity, mob/user)
 	var/required = quantity*recipe.req_amount
 	var/produced = min(quantity*recipe.res_amount, recipe.max_res_amount)

code/game/objects/items/toys/toys_vr.dm

@@ -542,7 +542,7 @@
 /obj/item/toy/AI/attack_self(mob/user as mob)
 	var/list/players = list()
 
-	for(var/mob/living/carbon/human/player in player_list)
+	for(var/mob/living/carbon/human/player in GLOB.player_list)
 		if(!player.mind || player_is_antag(player.mind, only_offstation_roles = 1) || player.client.inactivity > MinutesToTicks(10))
 			continue
 		players += player.real_name

code/game/objects/items/weapons/AI_modules.dm

@@ -60,7 +60,7 @@ AI MODULES
 			src.transmitInstructions(comp.current, user)
 			to_chat(comp.current,  "These are your laws now:")
 			comp.current.show_laws()
-			for(var/mob/living/silicon/robot/R in mob_list)
+			for(var/mob/living/silicon/robot/R in GLOB.mob_list)
 				if(R.lawupdate && (R.connected_ai == comp.current))
 					to_chat(R, "These are your laws now:")
 					R.show_laws()

code/game/objects/items/weapons/RPD_vr.dm

@@ -90,7 +90,7 @@
 		"preview_rows" = recipe.get_preview(p_dir),
 		"categories" = list(),
 		"selected_color" = paint_color,
-		"paint_colors" = pipe_colors,
+		"paint_colors" = GLOB.pipe_colors,
 		"mode" = mode
 	)
 
@@ -189,7 +189,7 @@
 		if(!istype(A, /obj/machinery/atmospherics/pipe/simple/heat_exchanging) && istype(A, /obj/machinery/atmospherics/pipe))
 			var/obj/machinery/atmospherics/pipe/P = A
 			playsound(src, 'sound/machines/click.ogg', 50, 1)
-			P.change_color(pipe_colors[paint_color])
+			P.change_color(GLOB.pipe_colors[paint_color])
 			user.visible_message(span_notice("[user] paints \the [P] [paint_color]."), span_notice("You paint \the [P] [paint_color]."))
 			return
 
@@ -219,7 +219,7 @@
 						P.update()
 						P.add_fingerprint(user)
 						if(R.paintable)
-							P.color = pipe_colors[paint_color]
+							P.color = GLOB.pipe_colors[paint_color]
 						P.setPipingLayer(queued_piping_layer)
 						if(queued_p_flipped)
 							P.do_a_flip()

code/game/objects/items/weapons/id cards/syndicate_ids.dm

@@ -11,7 +11,7 @@
 /obj/item/card/id/syndicate/Initialize(mapload)
 	. = ..()
 	agentcard_module = new(src)
-	access = syndicate_access.Copy()
+	access = GLOB.syndicate_access.Copy()
 
 /obj/item/card/id/syndicate/station_access/Initialize(mapload)
 	. = ..() // Same as the normal Syndicate id, only already has all station access
@@ -64,10 +64,9 @@
 	registered_user.unregister(OBSERVER_EVENT_DESTROY, src)
 	registered_user = null
 
-/var/global/list/id_card_states
 /proc/id_card_states()
-	if(!id_card_states)
-		id_card_states = list()
+	if(!GLOB.id_card_states)
+		GLOB.id_card_states = list()
 		for(var/path in typesof(/obj/item/card/id))
 			var/obj/item/card/id/ID = new path()
 			var/datum/card_state/CS = new()
@@ -75,10 +74,10 @@
 			CS.item_state = initial(ID.item_state)
 			CS.sprite_stack = ID.initial_sprite_stack
 			CS.name = initial(ID.name)
-			id_card_states += CS
-		id_card_states = dd_sortedObjectList(id_card_states)
+			GLOB.id_card_states += CS
+		GLOB.id_card_states = dd_sortedObjectList(GLOB.id_card_states)
 
-	return id_card_states
+	return GLOB.id_card_states
 
 /datum/card_state
 	var/name

code/game/objects/items/weapons/implants/implant.dm

@@ -38,7 +38,7 @@
 	else
 		forceMove(source)
 
-	listening_objects |= src
+	GLOB.listening_objects |= src
 
 // Takes place after handle_implant, if that returns TRUE
 /obj/item/implant/proc/post_implant(var/mob/source)
@@ -75,7 +75,7 @@
 	if(part)
 		part.implants.Remove(src)
 		part = null
-	listening_objects.Remove(src)
+	GLOB.listening_objects.Remove(src)
 	imp_in = null
 	return ..()
 

code/game/objects/items/weapons/material/ashtray.dm

@@ -1,4 +1,4 @@
-var/global/list/ashtray_cache = list()
+GLOBAL_LIST_EMPTY(ashtray_cache)
 
 /obj/item/material/ashtray
 	name = "ashtray"
@@ -24,21 +24,21 @@ var/global/list/ashtray_cache = list()
 	color = null
 	cut_overlays()
 	var/cache_key = "base-[material.name]"
-	if(!ashtray_cache[cache_key])
+	if(!GLOB.ashtray_cache[cache_key])
 		var/image/I = image('icons/obj/objects.dmi',"ashtray")
 		I.color = material.icon_colour
-		ashtray_cache[cache_key] = I
-	add_overlay(ashtray_cache[cache_key])
+		GLOB.ashtray_cache[cache_key] = I
+	add_overlay(GLOB.ashtray_cache[cache_key])
 
 	if (contents.len == max_butts)
-		if(!ashtray_cache["full"])
-			ashtray_cache["full"] = image('icons/obj/objects.dmi',"ashtray_full")
-		add_overlay(ashtray_cache["full"])
+		if(!GLOB.ashtray_cache["full"])
+			GLOB.ashtray_cache["full"] = image('icons/obj/objects.dmi',"ashtray_full")
+		add_overlay(GLOB.ashtray_cache["full"])
 		desc = "It's stuffed full."
 	else if (contents.len > max_butts/2)
-		if(!ashtray_cache["half"])
-			ashtray_cache["half"] = image('icons/obj/objects.dmi',"ashtray_half")
-		add_overlay(ashtray_cache["half"])
+		if(!GLOB.ashtray_cache["half"])
+			GLOB.ashtray_cache["half"] = image('icons/obj/objects.dmi',"ashtray_half")
+		add_overlay(GLOB.ashtray_cache["half"])
 		desc = "It's half-filled."
 	else
 		desc = "An ashtray made of [material.display_name]."

code/game/objects/items/weapons/melee/misc.dm

@@ -95,4 +95,4 @@
 	new_voice.name = "cursed sword"			//Cursed swords shouldn't be known characters.
 	new_voice.real_name = "cursed sword"
 	voice_mobs.Add(new_voice)
-	listening_objects |= src
+	GLOB.listening_objects |= src

code/game/objects/items/weapons/paint.dm

@@ -1,8 +1,6 @@
 //NEVER USE THIS IT SUX	-PETETHEGOAT
 //THE GOAT WAS RIGHT - RKF
 
-var/global/list/cached_icons = list()
-
 /obj/item/reagent_containers/glass/paint
 	desc = "It's a paint bucket."
 	name = "paint bucket"

code/game/objects/items_vr.dm

@@ -22,7 +22,7 @@
 		new_voice.name = "[name]" 					//No name given? Give them the name of the object they're inhabiting.
 	new_voice.real_name = "[new_voice.real_name]" 	//We still know their real name though!
 	possessed_voice.Add(new_voice)
-	listening_objects |= src
+	GLOB.listening_objects |= src
 	remove_verb(new_voice, /mob/living/voice/verb/change_name) //No changing your name! Bad!
 	remove_verb(new_voice, /mob/living/voice/verb/hang_up) //Also you can't hang up. You are the item!
 	src.item_tf_spawnpoint_used()

code/game/objects/mail.dm

@@ -104,7 +104,7 @@
 /obj/item/mail/proc/setRecipient(mob/user)
 	var/list/recipients = list()
 	var/mob/living/recipient_mob
-	for(var/mob/living/player in player_list)
+	for(var/mob/living/player in GLOB.player_list)
 		if(!player_is_antag(player.mind) && player.mind.show_in_directory)
 			recipients += player
 
@@ -278,7 +278,7 @@
 		if(!chosen)
 			return
 
-	for(var/mob/living/player in player_list)
+	for(var/mob/living/player in GLOB.player_list)
 		recipients += player
 
 	var/mob/living/chosen_player = tgui_input_list(usr, "Choose recipient", "Recipients", recipients, recipients)
@@ -315,7 +315,7 @@
 /obj/structure/closet/crate/mail/full/Initialize(mapload)
 	. = ..()
 	var/list/mail_recipients = list()
-	for(var/mob/living/carbon/human/alive in player_list)
+	for(var/mob/living/carbon/human/alive in GLOB.player_list)
 		if(alive.stat != DEAD && alive.client && alive.client.inactivity <= 10 MINUTES)
 			mail_recipients += alive
 	for(var/iterator in 1 to storage_capacity)

code/game/objects/mob_spawner_vr.dm

@@ -96,7 +96,7 @@
 	var/turf/T = get_turf(src)
 	if(!T)
 		return 0
-	for(var/mob/living/L in player_list)
+	for(var/mob/living/L in GLOB.player_list)
 		var/turf/L_T
 		if(L.stat == DEAD)
 			continue

code/game/objects/random/_random.dm

@@ -42,38 +42,36 @@
 	var/build_path = item_to_spawn()
 	return new build_path(drop_location())
 
-var/list/random_junk_
-var/list/random_useful_
 /proc/get_random_useful_type()
-	if(!random_useful_)
-		random_useful_ = subtypesof(/obj/item/pen/crayon)
-		random_useful_ += /obj/item/pen
-		random_useful_ += /obj/item/pen/blue
-		random_useful_ += /obj/item/pen/red
-		random_useful_ += /obj/item/pen/multi
-		random_useful_ += /obj/item/storage/box/matches
-		random_useful_ += /obj/item/stack/material/cardboard
-	return pick(random_useful_)
+	if(!LAZYLEN(GLOB.random_useful_))
+		GLOB.random_useful_ = subtypesof(/obj/item/pen/crayon)
+		GLOB.random_useful_ += /obj/item/pen
+		GLOB.random_useful_ += /obj/item/pen/blue
+		GLOB.random_useful_ += /obj/item/pen/red
+		GLOB.random_useful_ += /obj/item/pen/multi
+		GLOB.random_useful_ += /obj/item/storage/box/matches
+		GLOB.random_useful_ += /obj/item/stack/material/cardboard
+	return pick(GLOB.random_useful_)
 
 /proc/get_random_junk_type()
 	if(prob(20)) // Misc. clutter
 		return /obj/effect/decal/cleanable/generic
 	if(prob(70)) // Misc. junk
-		if(!random_junk_)
-			random_junk_ = subtypesof(/obj/item/trash)
-			random_junk_ += /obj/effect/decal/cleanable/bug_remains
-			random_junk_ += /obj/effect/decal/remains/mouse
-			random_junk_ += /obj/effect/decal/remains/robot
-			random_junk_ += /obj/item/paper/crumpled
-			random_junk_ += /obj/item/inflatable/torn
-			random_junk_ += /obj/effect/decal/cleanable/molten_item
-			random_junk_ += /obj/item/material/shard
+		if(!LAZYLEN(GLOB.random_junk_))
+			GLOB.random_junk_ = subtypesof(/obj/item/trash)
+			GLOB.random_junk_ += /obj/effect/decal/cleanable/bug_remains
+			GLOB.random_junk_ += /obj/effect/decal/remains/mouse
+			GLOB.random_junk_ += /obj/effect/decal/remains/robot
+			GLOB.random_junk_ += /obj/item/paper/crumpled
+			GLOB.random_junk_ += /obj/item/inflatable/torn
+			GLOB.random_junk_ += /obj/effect/decal/cleanable/molten_item
+			GLOB.random_junk_ += /obj/item/material/shard
 
-			random_junk_ -= /obj/item/trash/plate
-			random_junk_ -= /obj/item/trash/snack_bowl
-			random_junk_ -= /obj/item/trash/syndi_cakes
-			random_junk_ -= /obj/item/trash/tray
-		return pick(random_junk_)
+			GLOB.random_junk_ -= /obj/item/trash/plate
+			GLOB.random_junk_ -= /obj/item/trash/snack_bowl
+			GLOB.random_junk_ -= /obj/item/trash/syndi_cakes
+			GLOB.random_junk_ -= /obj/item/trash/tray
+		return pick(GLOB.random_junk_)
 	// Misc. actually useful stuff
 	return get_random_useful_type()
 

code/game/objects/structures/holoplant.dm

@@ -9,13 +9,6 @@
 	active_power_usage = 5
 	var/interference = FALSE
 	var/icon/plant = null
-	var/global/list/possible_plants = list(
-		"plant-1",
-		"plant-10",
-		"plant-09",
-		"plant-15",
-		"plant-13"
-	)
 
 /obj/machinery/holoplant/Initialize(mapload)
 	. = ..()
@@ -82,7 +75,7 @@
 
 /obj/machinery/holoplant/proc/prepare_icon(var/state)
 	if(!state)
-		state = pick(possible_plants)
+		state = pick(GLOB.possible_plants)
 	var/plant_icon = icon(icon, state)
 	return getHologramIcon(plant_icon, 0)
 

code/game/objects/structures/signs.dm

@@ -1493,8 +1493,8 @@
 /obj/structure/sign/calendar/examine(mob/user)
 	. = ..()
 	. += "The calendar shows that the date is [stationdate2text()]."
-	if (Holiday.len)
-		. += "Today is " + span_bold(span_green("[english_list(Holiday)]")) + "."
+	if (GLOB.Holiday.len)
+		. += "Today is " + span_bold(span_green("[english_list(GLOB.Holiday)]")) + "."
 
 /obj/structure/sign/explosive
 	name = "\improper HIGH EXPLOSIVES sign"

code/game/objects/structures/stool_bed_chair_nest/bed.dm

@@ -46,20 +46,20 @@
 	cut_overlays()
 	// Base icon.
 	var/cache_key = "[base_icon]-[material.name]"
-	if(isnull(stool_cache[cache_key]))
+	if(isnull(GLOB.stool_cache[cache_key]))
 		var/image/I = image(icon, base_icon)
 		if(applies_material_colour) //VOREStation Add - Goes with added var
 			I.color = material.icon_colour
-		stool_cache[cache_key] = I
-	add_overlay(stool_cache[cache_key])
+		GLOB.stool_cache[cache_key] = I
+	add_overlay(GLOB.stool_cache[cache_key])
 	// Padding overlay.
 	if(padding_material)
 		var/padding_cache_key = "[base_icon]-padding-[padding_material.name]"
-		if(isnull(stool_cache[padding_cache_key]))
+		if(isnull(GLOB.stool_cache[padding_cache_key]))
 			var/image/I =  image(icon, "[base_icon]_padding")
 			I.color = padding_material.icon_colour
-			stool_cache[padding_cache_key] = I
-		add_overlay(stool_cache[padding_cache_key])
+			GLOB.stool_cache[padding_cache_key] = I
+		add_overlay(GLOB.stool_cache[padding_cache_key])
 	// Strings.
 	desc = initial(desc)
 	if(padding_material)

code/game/objects/structures/stool_bed_chair_nest/chairs.dm

@@ -43,14 +43,14 @@
 	..()
 	if(has_buckled_mobs())
 		var/cache_key = "[base_icon]-armrest-[padding_material ? padding_material.name : "no_material"]"
-		if(isnull(stool_cache[cache_key]))
+		if(isnull(GLOB.stool_cache[cache_key]))
 			var/image/I = image(icon, "[base_icon]_armrest")
 			I.plane = MOB_PLANE
 			I.layer = ABOVE_MOB_LAYER
 			if(padding_material)
 				I.color = padding_material.icon_colour
-			stool_cache[cache_key] = I
-		add_overlay(stool_cache[cache_key])
+			GLOB.stool_cache[cache_key] = I
+		add_overlay(GLOB.stool_cache[cache_key])
 
 /obj/structure/bed/chair/proc/update_layer()
 	if(src.dir == NORTH)
@@ -329,14 +329,14 @@
 /obj/structure/bed/chair/sofa/corner/update_icon()
 	..()
 	var/cache_key = "[base_icon]-armrest-[padding_material ? padding_material.name : "no_material"]-permanent"
-	if(isnull(stool_cache[cache_key]))
+	if(isnull(GLOB.stool_cache[cache_key]))
 		var/image/I = image(icon, "[base_icon]_armrest")
 		I.plane = MOB_PLANE
 		I.layer = ABOVE_MOB_LAYER
 		if(padding_material)
 			I.color = padding_material.icon_colour
-		stool_cache[cache_key] = I
-	add_overlay(stool_cache[cache_key])
+		GLOB.stool_cache[cache_key] = I
+	add_overlay(GLOB.stool_cache[cache_key])
 
 // Wooden nonsofa - no corners
 /obj/structure/bed/chair/sofa/pew

code/game/objects/structures/stool_bed_chair_nest/chairs_vr.dm

@@ -54,66 +54,66 @@
 
 	// Base icon (base material color)
 	var/cache_key = "[base_icon]-[material.name]"
-	if(isnull(stool_cache[cache_key]))
+	if(isnull(GLOB.stool_cache[cache_key]))
 		var/image/I = image(icon, base_icon)
 		if(applies_material_colour)
 			I.color = material.icon_colour
-		stool_cache[cache_key] = I
-	add_overlay(stool_cache[cache_key])
+		GLOB.stool_cache[cache_key] = I
+	add_overlay(GLOB.stool_cache[cache_key])
 
 	// Padding ('_padding') (padding material color)
 	if(padding_material)
 		var/padding_cache_key = "[base_icon]-padding-[padding_material.name]"
-		if(isnull(stool_cache[padding_cache_key]))
+		if(isnull(GLOB.stool_cache[padding_cache_key]))
 			var/image/I =  image(icon, "[base_icon]_padding")
 			I.color = padding_material.icon_colour
-			stool_cache[padding_cache_key] = I
-		add_overlay(stool_cache[padding_cache_key])
+			GLOB.stool_cache[padding_cache_key] = I
+		add_overlay(GLOB.stool_cache[padding_cache_key])
 
 	// Over ('_over') (base material color)
 	cache_key = "[base_icon]-[material.name]-over"
-	if(isnull(stool_cache[cache_key]))
+	if(isnull(GLOB.stool_cache[cache_key]))
 		var/image/I = image(icon, "[base_icon]_over")
 		I.plane = MOB_PLANE
 		I.layer = ABOVE_MOB_LAYER
 		if(applies_material_colour)
 			I.color = material.icon_colour
-		stool_cache[cache_key] = I
-	add_overlay(stool_cache[cache_key])
+		GLOB.stool_cache[cache_key] = I
+	add_overlay(GLOB.stool_cache[cache_key])
 
 	// Padding Over ('_padding_over') (padding material color)
 	if(padding_material)
 		var/padding_cache_key = "[base_icon]-padding-[padding_material.name]-over"
-		if(isnull(stool_cache[padding_cache_key]))
+		if(isnull(GLOB.stool_cache[padding_cache_key]))
 			var/image/I =  image(icon, "[base_icon]_padding_over")
 			I.color = padding_material.icon_colour
 			I.plane = MOB_PLANE
 			I.layer = ABOVE_MOB_LAYER
-			stool_cache[padding_cache_key] = I
-		add_overlay(stool_cache[padding_cache_key])
+			GLOB.stool_cache[padding_cache_key] = I
+		add_overlay(GLOB.stool_cache[padding_cache_key])
 
 	if(has_buckled_mobs())
 		if(padding_material)
 			cache_key = "[base_icon]-armrest-[padding_material.name]"
 		// Armrest ('_armrest') (base material color)
-		if(isnull(stool_cache[cache_key]))
+		if(isnull(GLOB.stool_cache[cache_key]))
 			var/image/I = image(icon, "[base_icon]_armrest")
 			I.plane = MOB_PLANE
 			I.layer = ABOVE_MOB_LAYER
 			if(applies_material_colour)
 				I.color = material.icon_colour
-			stool_cache[cache_key] = I
-		add_overlay(stool_cache[cache_key])
+			GLOB.stool_cache[cache_key] = I
+		add_overlay(GLOB.stool_cache[cache_key])
 		if(padding_material)
 			cache_key = "[base_icon]-padding-armrest-[padding_material.name]"
 			// Padding Armrest ('_padding_armrest') (padding material color)
-			if(isnull(stool_cache[cache_key]))
+			if(isnull(GLOB.stool_cache[cache_key]))
 				var/image/I = image(icon, "[base_icon]_padding_armrest")
 				I.plane = MOB_PLANE
 				I.layer = ABOVE_MOB_LAYER
 				I.color = padding_material.icon_colour
-				stool_cache[cache_key] = I
-			add_overlay(stool_cache[cache_key])
+				GLOB.stool_cache[cache_key] = I
+			add_overlay(GLOB.stool_cache[cache_key])
 
 /obj/structure/bed/chair/bay/chair
 	name = "mounted chair"

code/game/objects/structures/stool_bed_chair_nest/stools.dm

@@ -1,5 +1,4 @@
 //Todo: add leather and cloth for arbitrary coloured stools.
-var/global/list/stool_cache = list() //haha stool
 
 /obj/item/stool
 	name = "stool"
@@ -40,19 +39,19 @@ var/global/list/stool_cache = list() //haha stool
 	cut_overlays()
 	// Base icon.
 	var/cache_key = "[base_icon]-[material.name]"
-	if(isnull(stool_cache[cache_key]))
+	if(isnull(GLOB.stool_cache[cache_key]))
 		var/image/I = image(icon, base_icon)
 		I.color = material.icon_colour
-		stool_cache[cache_key] = I
-	add_overlay(stool_cache[cache_key])
+		GLOB.stool_cache[cache_key] = I
+	add_overlay(GLOB.stool_cache[cache_key])
 	// Padding overlay.
 	if(padding_material)
 		var/padding_cache_key = "[base_icon]-padding-[padding_material.name]"
-		if(isnull(stool_cache[padding_cache_key]))
+		if(isnull(GLOB.stool_cache[padding_cache_key]))
 			var/image/I =  image(icon, "[base_icon]_padding") //VOREStation Edit
 			I.color = padding_material.icon_colour
-			stool_cache[padding_cache_key] = I
-		add_overlay(stool_cache[padding_cache_key])
+			GLOB.stool_cache[padding_cache_key] = I
+		add_overlay(GLOB.stool_cache[padding_cache_key])
 	// Strings.
 	if(padding_material)
 		name = "[padding_material.display_name] [initial(name)]" //this is not perfect but it will do for now.

code/game/objects/structures/transit_tubes.dm

@@ -13,13 +13,6 @@
 	var/exit_delay = 2
 	var/enter_delay = 1
 
-	// GLOB.alldirs in global.dm is the same list of directions, but since
-	//  the specific order matters to get a usable icon_state, it is
-	//  copied here so that, in the unlikely case that GLOB.alldirs is changed,
-	//  this continues to work.
-	var/global/list/tube_dir_list = list(NORTH, SOUTH, EAST, WEST, NORTHEAST, NORTHWEST, SOUTHEAST, SOUTHWEST)
-
-
 // A place where tube pods stop, and people can get in or out.
 // Mappers: use "Generate Instances from Directions" for this
 //  one.
@@ -439,7 +432,7 @@
 	var/list/connected = list()
 	var/list/connected_auto = list()
 
-	for(var/direction in tube_dir_list)
+	for(var/direction in GLOB.tube_dir_list)
 		var/location = get_step(loc, direction)
 		for(var/obj/structure/transit_tube/tube in location)
 			if(tube.directions() == null && tube.icon_state == "auto")
@@ -454,7 +447,7 @@
 
 	tube_dirs = select_automatic_dirs(connected)
 
-	if(length(tube_dirs) == 2 && tube_dir_list.Find(tube_dirs[1]) > tube_dir_list.Find(tube_dirs[2]))
+	if(length(tube_dirs) == 2 && GLOB.tube_dir_list.Find(tube_dirs[1]) > GLOB.tube_dir_list.Find(tube_dirs[2]))
 		tube_dirs.Swap(1, 2)
 
 	generate_automatic_corners(tube_dirs)
@@ -527,10 +520,9 @@
 //  but it is probably safer to assume the existence of, and
 //  rely on, a sufficiently smart compiler/optimizer.
 /obj/structure/transit_tube/proc/parse_dirs(text)
-	var/global/list/direction_table = list()
 
-	if(text in direction_table)
-		return direction_table[text]
+	if(text in GLOB.direction_table)
+		return GLOB.direction_table[text]
 
 	var/list/split_text = splittext(text, "-")
 
@@ -538,7 +530,7 @@
 	//  a purely decorative tube, and doesn't actually
 	//  connect to anything.
 	if(split_text[1] == "D")
-		direction_table[text] = list()
+		GLOB.direction_table[text] = list()
 		return null
 
 	var/list/directions = list()
@@ -549,7 +541,7 @@
 		if(direction > 0)
 			directions += direction
 
-	direction_table[text] = directions
+	GLOB.direction_table[text] = directions
 	return directions
 
 

code/game/objects/structures/trash_pile_vr.dm

@@ -17,17 +17,6 @@
 
 	//These are types that can only spawn once, and then will be removed from this list.
 	//Alpha and beta lists are in their respective procs.
-	var/global/list/unique_gamma = list(
-		/obj/item/perfect_tele,
-		/obj/item/bluespace_harpoon,
-		/obj/item/clothing/glasses/thermal/syndi,
-		/obj/item/gun/energy/netgun,
-		/obj/item/gun/projectile/dartgun,
-		/obj/item/clothing/gloves/black/bloodletter,
-		/obj/item/gun/energy/mouseray/metamorphosis
-		)
-
-	var/global/list/allocated_gamma = list()
 
 /obj/structure/trash_pile/Initialize(mapload)
 	. = ..()
@@ -53,12 +42,12 @@
 
 /obj/structure/trash_pile/attackby(obj/item/W as obj, mob/user as mob)
 	var/w_type = W.type
-	if(w_type in allocated_gamma)
+	if(w_type in GLOB.allocated_gamma)
 		to_chat(user,span_notice("You feel \the [W] slip from your hand, and disappear into the trash pile."))
 		user.unEquip(W)
 		W.forceMove(src)
-		allocated_gamma -= w_type
-		unique_gamma += w_type
+		GLOB.allocated_gamma -= w_type
+		GLOB.unique_gamma += w_type
 		qdel(W)
 
 	else
@@ -332,18 +321,18 @@
 	return I
 
 /obj/structure/trash_pile/proc/produce_gamma_item()
-	var/path = pick_n_take(unique_gamma)
+	var/path = pick_n_take(GLOB.unique_gamma)
 	if(!path) //Tapped out, reallocate?
-		for(var/P in allocated_gamma)
-			var/obj/item/I = allocated_gamma[P]
+		for(var/P in GLOB.allocated_gamma)
+			var/obj/item/I = GLOB.allocated_gamma[P]
 			if(QDELETED(I) || istype(I.loc,/obj/machinery/computer/cryopod))
-				allocated_gamma -= P
+				GLOB.allocated_gamma -= P
 				path = P
 				break
 
 	if(path)
 		var/obj/item/I = new path()
-		allocated_gamma[path] = I
+		GLOB.allocated_gamma[path] = I
 		return I
 	else
 		return produce_beta_item()