Merge branch 'master' of https://github.com/Citadel-Station-13/Citadel-Station-13 into ninjasarecum

# Conflicts: # code/modules/ninja/suit/suit.dm
2021-08-19 21:55:22 -04:00
parent 7e20f4f884 8e442b5472
commit 06181f51ae
708 changed files with 22153 additions and 13237 deletions
@@ -553,7 +553,7 @@ GLOBAL_LIST_EMPTY(teleportlocs)
 			A.power_equip = power_equip
 			A.power_environ = power_environ
 			INVOKE_ASYNC(A, .proc/power_change)
-	update_icon()
+	update_appearance()

 /area/proc/usage(chan)
 	switch(chan)
@@ -103,6 +103,9 @@
 	/// A luminescence-shifted value of the last color calculated for chatmessage overlays
 	var/chat_color_darkened

+	///Used for changing icon states for different base sprites.
+	var/base_icon_state
+
 	///Mobs that are currently do_after'ing this atom, to be cleared from on Destroy()
 	var/list/targeted_by

@@ -169,7 +172,7 @@
 * * [/turf/open/space/proc/Initialize]
 */
 /atom/proc/Initialize(mapload, ...)
-	// SHOULD_NOT_SLEEP(TRUE)
+	SHOULD_NOT_SLEEP(TRUE)
 	SHOULD_CALL_PARENT(TRUE)
 	if(flags_1 & INITIALIZED_1)
 		stack_trace("Warning: [src]([type]) initialized multiple times!")
@@ -378,12 +381,26 @@
 	return FALSE

 /atom/proc/assume_air(datum/gas_mixture/giver)
-	qdel(giver)
+	return null
+
+/atom/proc/assume_air_moles(datum/gas_mixture/giver, moles)
+	return null
+
+/atom/proc/assume_air_ratio(datum/gas_mixture/giver, ratio)
 	return null

 /atom/proc/remove_air(amount)
 	return null

+/atom/proc/remove_air_ratio(ratio)
+	return null
+
+/atom/proc/transfer_air(datum/gas_mixture/taker, amount)
+	return null
+
+/atom/proc/transfer_air_ratio(datum/gas_mixture/taker, ratio)
+	return null
+
 /atom/proc/return_air()
 	if(loc)
 		return loc.return_air()
@@ -517,37 +534,75 @@
 	if(!LAZYLEN(.)) // lol ..length
 		return list("<span class='notice'><i>You examine [src] closer, but find nothing of interest...</i></span>")

+/**
+ * Updates the appearence of the icon
+ *
+ * Mostly delegates to update_name, update_desc, and update_icon
+ *
+ * Arguments:
+ * - updates: A set of bitflags dictating what should be updated. Defaults to [ALL]
+ */
+/atom/proc/update_appearance(updates=ALL)
+	//SHOULD_NOT_SLEEP(TRUE)
+	//SHOULD_CALL_PARENT(TRUE)
+
+	. = NONE
+	updates &= ~SEND_SIGNAL(src, COMSIG_ATOM_UPDATE_APPEARANCE, updates)
+	if(updates & UPDATE_NAME)
+		. |= update_name(updates)
+	if(updates & UPDATE_DESC)
+		. |= update_desc(updates)
+	if(updates & UPDATE_ICON)
+		. |= update_icon(updates)
+
+/// Updates the name of the atom
+/atom/proc/update_name(updates=ALL)
+	//SHOULD_CALL_PARENT(TRUE)
+	return SEND_SIGNAL(src, COMSIG_ATOM_UPDATE_NAME, updates)
+
+/// Updates the description of the atom
+/atom/proc/update_desc(updates=ALL)
+	//SHOULD_CALL_PARENT(TRUE)
+	return SEND_SIGNAL(src, COMSIG_ATOM_UPDATE_DESC, updates)
+
 /// Updates the icon of the atom
-/atom/proc/update_icon()
-	// I expect we're going to need more return flags and options in this proc
-	var/signalOut = SEND_SIGNAL(src, COMSIG_ATOM_UPDATE_ICON)
-	. = FALSE
+/atom/proc/update_icon(updates=ALL)
+	SIGNAL_HANDLER
+	//SHOULD_CALL_PARENT(TRUE)

-	if(!(signalOut & COMSIG_ATOM_NO_UPDATE_ICON_STATE))
+	. = NONE
+	updates &= ~SEND_SIGNAL(src, COMSIG_ATOM_UPDATE_ICON, updates)
+	if(updates & UPDATE_ICON_STATE)
 		update_icon_state()
-		. = TRUE
+		. |= UPDATE_ICON_STATE

-	if(!(signalOut & COMSIG_ATOM_NO_UPDATE_OVERLAYS))
-		var/list/new_overlays = update_overlays()
+	if(updates & UPDATE_OVERLAYS)
+		if(LAZYLEN(managed_vis_overlays))
+			SSvis_overlays.remove_vis_overlay(src, managed_vis_overlays)
+
+		var/list/new_overlays = update_overlays(updates)
 		if(managed_overlays)
 			cut_overlay(managed_overlays)
 			managed_overlays = null
 		if(length(new_overlays))
 			managed_overlays = new_overlays
 			add_overlay(new_overlays)
-		. = TRUE
+		. |= UPDATE_OVERLAYS

-	SEND_SIGNAL(src, COMSIG_ATOM_UPDATED_ICON, signalOut, .)
+	. |= SEND_SIGNAL(src, COMSIG_ATOM_UPDATED_ICON, updates, .)

 /// Updates the icon state of the atom
 /atom/proc/update_icon_state()
+	//SHOULD_CALL_PARENT(TRUE)
+	return SEND_SIGNAL(src, COMSIG_ATOM_UPDATE_ICON_STATE)

 /// Updates the overlays of the atom
 /atom/proc/update_overlays()
-	SHOULD_CALL_PARENT(TRUE)
+	//SHOULD_CALL_PARENT(TRUE)
 	. = list()
 	SEND_SIGNAL(src, COMSIG_ATOM_UPDATE_OVERLAYS, .)

+
 /atom/proc/relaymove(mob/living/user)
 	if(!istype(user))
 		return				//why are you buckling nonliving mobs to atoms?
@@ -57,13 +57,20 @@

 	/// Should we use tooltips, if the thing does not have the code implemented `get_tooltip_data()`, it will default to examine(src)
 	var/tooltips = FALSE
-
+	/// How loudly we yell
+	var/yell_power = 50
+	/// last time we yelled
+	var/last_yell = 0

 /atom/movable/Initialize(mapload)
 	. = ..()
 	switch(blocks_emissive)
 		if(EMISSIVE_BLOCK_GENERIC)
-			update_emissive_block()
+			var/mutable_appearance/gen_emissive_blocker = mutable_appearance(icon, icon_state, plane = EMISSIVE_PLANE, alpha = src.alpha)
+			gen_emissive_blocker.color = GLOB.em_block_color
+			gen_emissive_blocker.dir = dir
+			gen_emissive_blocker.appearance_flags |= appearance_flags
+			add_overlay(list(gen_emissive_blocker))
 		if(EMISSIVE_BLOCK_UNIQUE)
 			render_target = ref(src)
 			em_block = new(src, render_target)
@@ -108,13 +115,23 @@
 /atom/movable/proc/update_emissive_block()
 	if(blocks_emissive != EMISSIVE_BLOCK_GENERIC)
 		return
-	if(length(managed_vis_overlays))
-		for(var/a in managed_vis_overlays)
-			var/obj/effect/overlay/vis/vs
-			if(vs.plane == EMISSIVE_BLOCKER_PLANE)
-				SSvis_overlays.remove_vis_overlay(src, list(vs))
-				break
-	SSvis_overlays.add_vis_overlay(src, icon, icon_state, EMISSIVE_BLOCKER_LAYER, EMISSIVE_BLOCKER_PLANE, dir)
+	else if (blocks_emissive == EMISSIVE_BLOCK_GENERIC)
+		var/mutable_appearance/gen_emissive_blocker = mutable_appearance(icon, icon_state, plane = EMISSIVE_PLANE, alpha = src.alpha)
+		gen_emissive_blocker.color = GLOB.em_block_color
+		gen_emissive_blocker.dir = dir
+		gen_emissive_blocker.appearance_flags |= appearance_flags
+		return gen_emissive_blocker
+	else if(blocks_emissive == EMISSIVE_BLOCK_UNIQUE)
+		if(!em_block)
+			render_target = ref(src)
+			em_block = new(src, render_target)
+		return em_block
+
+/atom/movable/update_overlays()
+	. = ..()
+	var/emissive_block = update_emissive_block()
+	if(emissive_block)
+		. += emissive_block

 /atom/movable/proc/can_zFall(turf/source, levels = 1, turf/target, direction)
 	if(!direction)
@@ -711,10 +711,15 @@ GLOBAL_VAR_INIT(dynamic_forced_storyteller, null)
 		update_playercounts()
 		if (storyteller.should_inject_antag())
 			SSblackbox.record_feedback("tally","dynamic",1,"Attempted midround injections")
-			var/list/drafted_rules = storyteller.midround_draft()
-			if (drafted_rules.len > 0)
-				SSblackbox.record_feedback("tally","dynamic",1,"Successful midround injections")
-				picking_midround_latejoin_rule(drafted_rules)
+			do_midround_injection()
+
+/datum/game_mode/dynamic/proc/do_midround_injection()
+	set waitfor = FALSE
+	var/list/drafted_rules = storyteller.midround_draft()
+	if (drafted_rules.len > 0)
+		SSblackbox.record_feedback("tally","dynamic",1,"Successful midround injections")
+		picking_midround_latejoin_rule(drafted_rules)
+

 /// Updates current_players.
 /datum/game_mode/dynamic/proc/update_playercounts()
@@ -105,14 +105,18 @@
 					if(tempgang != gang)
 						tempgang.message_gangtools("WARNING: [gang.name] Gang takeover imminent. Their dominator at [domloc.map_name] must be destroyed!",1,1)
 		else
-			Cinematic(CINEMATIC_MALF,world) //Here is the gang victory trigger on the dominator ending.
-			gang.winner = TRUE
-			SSticker.news_report = GANG_VICTORY
-			SSticker.force_ending = TRUE
+			endgame()

 	if(!.)
 		STOP_PROCESSING(SSmachines, src)

+/obj/machinery/dominator/proc/endgame()
+	set waitfor = FALSE
+	Cinematic(CINEMATIC_MALF,world) //Here is the gang victory trigger on the dominator ending.
+	gang.winner = TRUE
+	SSticker.news_report = GANG_VICTORY
+	SSticker.force_ending = TRUE
+
 /obj/machinery/dominator/play_attack_sound(damage_amount, damage_type = BRUTE, damage_flag = 0)
 	switch(damage_type)
 		if(BRUTE)
@@ -130,7 +130,7 @@
 /datum/objective_item/steal/plasma/check_special_completion(obj/item/tank/T)
 	var/target_amount = text2num(name)
 	var/found_amount = 0
-	found_amount += T.air_contents.get_moles(/datum/gas/plasma)
+	found_amount += T.air_contents.get_moles(GAS_PLASMA)
 	return found_amount>=target_amount


@@ -148,11 +148,15 @@ Class Procs:
 		START_PROCESSING(SSmachines, src)
 	else
 		START_PROCESSING(SSfastprocess, src)
-	power_change()
 	RegisterSignal(src, COMSIG_ENTER_AREA, .proc/power_change)

 	if (occupant_typecache)
 		occupant_typecache = typecacheof(occupant_typecache)
+	return INITIALIZE_HINT_LATELOAD
+
+/obj/machinery/LateInitialize()
+	. = ..()
+	power_change()

 /obj/machinery/Destroy()
 	GLOB.machines.Remove(src)
@@ -176,6 +180,17 @@ Class Procs:
 /obj/machinery/proc/process_atmos()//If you dont use process why are you here
 	return PROCESS_KILL

+///Called when we want to change the value of the stat variable. Holds bitflags.
+/obj/machinery/proc/set_machine_stat(new_value)
+	if(new_value == stat)
+		return
+	. = stat
+	stat = new_value
+	on_machine_stat_update(stat)
+
+/obj/machinery/proc/on_machine_stat_update(stat)
+	return
+
 /obj/machinery/emp_act(severity)
 	. = ..()
 	if(use_power && !stat && !(. & EMP_PROTECT_SELF))
@@ -383,8 +398,11 @@ Class Procs:
 	M.icon_state = "box_1"

 /obj/machinery/obj_break(damage_flag)
-	if(!(flags_1 & NODECONSTRUCT_1))
+	. = ..()
+	if(!(stat & BROKEN) && !(flags_1 & NODECONSTRUCT_1))
 		stat |= BROKEN
+		SEND_SIGNAL(src, COMSIG_MACHINERY_BROKEN, damage_flag)
+		update_appearance()
 		return TRUE

 /obj/machinery/contents_explosion(severity, target)
@@ -407,7 +407,7 @@

 /obj/machinery/camera/get_remote_view_fullscreens(mob/user)
 	if(view_range == short_range) //unfocused
-		user.overlay_fullscreen("remote_view", /obj/screen/fullscreen/impaired, 2)
+		user.overlay_fullscreen("remote_view", /atom/movable/screen/fullscreen/impaired, 2)

 /obj/machinery/camera/update_remote_sight(mob/living/user)
 	user.see_invisible = SEE_INVISIBLE_LIVING //can't see ghosts through cameras
@@ -173,10 +173,7 @@
 		clonemind.transfer_to(H)

 	else if(get_clone_mind == CLONEPOD_POLL_MIND)
-		var/list/candidates = pollCandidatesForMob("Do you want to play as [clonename]'s defective clone? (Don't ERP without permission from the original)", null, null, null, 100, H, POLL_IGNORE_CLONE)
-		if(LAZYLEN(candidates))
-			var/mob/C = pick(candidates)
-			H.key = C.key
+		poll_for_mind(H, clonename)

 	if(grab_ghost_when == CLONER_FRESH_CLONE)
 		H.grab_ghost()
@@ -206,6 +203,13 @@
 	attempting = FALSE
 	return TRUE

+/obj/machinery/clonepod/proc/poll_for_mind(mob/living/carbon/human/H, clonename)
+	set waitfor = FALSE
+	var/list/candidates = pollCandidatesForMob("Do you want to play as [clonename]'s defective clone? (Don't ERP without permission from the original)", null, null, null, 100, H, POLL_IGNORE_CLONE)
+	if(LAZYLEN(candidates))
+		var/mob/C = pick(candidates)
+		H.key = C.key
+
 //Grow clones to maturity then kick them out.  FREELOADERS
 /obj/machinery/clonepod/process()
 	var/mob/living/mob_occupant = occupant
@@ -384,7 +388,7 @@
 		to_chat(occupant, "<span class='notice'><b>There is a bright flash!</b><br><i>You feel like a new being.</i></span>")
 		mob_occupant.flash_act()

-	var/list/policies = CONFIG_GET(keyed_list/policyconfig)
+	var/list/policies = CONFIG_GET(keyed_list/policy)
 	var/policy = policies[POLICYCONFIG_ON_CLONE]
 	if(policy)
 		to_chat(occupant, policy)
@@ -57,8 +57,8 @@
 	var/overlay_state = icon_screen
 	if(stat & BROKEN)
 		overlay_state = "[icon_state]_broken"
-	SSvis_overlays.add_vis_overlay(src, icon, overlay_state, layer, plane, dir)
-	SSvis_overlays.add_vis_overlay(src, icon, overlay_state, EMISSIVE_LAYER, EMISSIVE_PLANE, dir, alpha=128)
+	. += mutable_appearance(icon, overlay_state)
+	. += emissive_appearance(icon, overlay_state)

 /obj/machinery/computer/power_change()
 	..()
@@ -60,7 +60,7 @@
 		var/total_moles = air_sample.total_moles()
 		if(total_moles)
 			for(var/gas_id in air_sample.get_gases())
-				var/gas_name = GLOB.meta_gas_names[gas_id]
+				var/gas_name = GLOB.gas_data.names[gas_id]
 				signal.data["gases"][gas_name] = air_sample.get_moles(gas_id) / total_moles * 100

 		radio_connection.post_signal(src, signal, filter = RADIO_ATMOSIA)
@@ -73,11 +73,11 @@

 /obj/machinery/air_sensor/Initialize()
 	. = ..()
-	SSair.atmos_machinery += src
+	SSair.atmos_air_machinery += src
 	set_frequency(frequency)

 /obj/machinery/air_sensor/Destroy()
-	SSair.atmos_machinery -= src
+	SSair.atmos_air_machinery -= src
 	SSradio.remove_object(src, frequency)
 	return ..()

@@ -16,10 +16,10 @@

 	// Stuff needed to render the map
 	var/map_name
-	var/obj/screen/map_view/cam_screen
+	var/atom/movable/screen/map_view/cam_screen
 	/// All the plane masters that need to be applied.
 	var/list/cam_plane_masters
-	var/obj/screen/background/cam_background
+	var/atom/movable/screen/background/cam_background

 	interaction_flags_machine = INTERACT_MACHINE_ALLOW_SILICON | INTERACT_MACHINE_SET_MACHINE //| INTERACT_MACHINE_REQUIRES_SIGHT

@@ -40,8 +40,8 @@
 	cam_screen.del_on_map_removal = FALSE
 	cam_screen.screen_loc = "[map_name]:1,1"
 	cam_plane_masters = list()
-	for(var/plane in subtypesof(/obj/screen/plane_master))
-		var/obj/screen/instance = new plane()
+	for(var/plane in subtypesof(/atom/movable/screen/plane_master))
+		var/atom/movable/screen/instance = new plane()
 		instance.assigned_map = map_name
 		instance.del_on_map_removal = FALSE
 		instance.screen_loc = "[map_name]:CENTER"
@@ -275,7 +275,7 @@
 	if(final)
 		playsound(origin, 'sound/machines/terminal_prompt_confirm.ogg', 25, 0)
 		remote_eye.setLoc(get_turf(final))
-		C.overlay_fullscreen("flash", /obj/screen/fullscreen/flash/static)
+		C.overlay_fullscreen("flash", /atom/movable/screen/fullscreen/flash/static)
 		C.clear_fullscreen("flash", 3) //Shorter flash than normal since it's an ~~advanced~~ console!
 	else
 		playsound(origin, 'sound/machines/terminal_prompt_deny.ogg', 25, 0)
@@ -123,7 +123,7 @@
 			var/list/this_pad = list()
 			this_pad["name"] = pad.display_name
 			this_pad["id"] = i
-			if(pad.machine_stat & NOPOWER)
+			if(pad.stat & NOPOWER)
 				this_pad["inactive"] = TRUE
 			pad_list += list(this_pad)
 		else
@@ -135,7 +135,7 @@
 		var/obj/machinery/mechpad/current_pad = mechpads[selected_id]
 		data["pad_name"] = current_pad.display_name
 		data["selected_pad"] = current_pad
-		if(QDELETED(current_pad) || (current_pad.machine_stat & NOPOWER))
+		if(QDELETED(current_pad) || (current_pad.stat & NOPOWER))
 			data["pad_active"] = FALSE
 			return data
 		data["pad_active"] = TRUE
@@ -34,6 +34,7 @@
 * Initiates launching sequence by checking if all components are functional, opening poddoors, firing mass drivers and then closing poddoors
 */
 /obj/machinery/computer/pod/proc/alarm()
+	set waitfor = FALSE
 	if(stat & (NOPOWER|BROKEN))
 		return

@@ -254,7 +254,7 @@
 	DA.update_name()
 	qdel(src)

-/obj/machinery/door/airlock/plasma/BlockSuperconductivity() //we don't stop the heat~
+/obj/machinery/door/airlock/plasma/BlockThermalConductivity() //we don't stop the heat~
 	return 0

 /obj/machinery/door/airlock/plasma/attackby(obj/item/C, mob/user, params)
@@ -9,6 +9,7 @@
 	layer = OPEN_DOOR_LAYER
 	power_channel = ENVIRON
 	max_integrity = 350
+	damage_deflection = 10
 	armor = list("melee" = 30, "bullet" = 30, "laser" = 20, "energy" = 20, "bomb" = 10, "bio" = 100, "rad" = 100, "fire" = 80, "acid" = 70)
 	CanAtmosPass = ATMOS_PASS_DENSITY
 	flags_1 = PREVENT_CLICK_UNDER_1|DEFAULT_RICOCHET_1
@@ -38,7 +39,7 @@
 	var/locked = FALSE //whether the door is bolted or not.
 	var/assemblytype //the type of door frame to drop during deconstruction
 	var/datum/effect_system/spark_spread/spark_system
-	var/damage_deflection = 10
+
 	var/real_explosion_block	//ignore this, just use explosion_block
 	var/red_alert_access = FALSE //if TRUE, this door will always open on red alert
 	var/poddoor = FALSE
@@ -223,11 +224,6 @@
 		return 1
 	return ..()

-/obj/machinery/door/run_obj_armor(damage_amount, damage_type, damage_flag = 0, attack_dir)
-	if(damage_flag == "melee" && damage_amount < damage_deflection)
-		return 0
-	. = ..()
-
 /obj/machinery/door/take_damage(damage_amount, damage_type = BRUTE, damage_flag = 0, sound_effect = 1, attack_dir)
 	. = ..()
 	if(. && obj_integrity > 0)
@@ -386,7 +382,7 @@
 	if(!glass && GLOB.cameranet)
 		GLOB.cameranet.updateVisibility(src, 0)

-/obj/machinery/door/BlockSuperconductivity() // All non-glass airlocks block heat, this is intended.
+/obj/machinery/door/BlockThermalConductivity() // All non-glass airlocks block heat, this is intended.
 	if(opacity || heat_proof)
 		return 1
 	return 0
@@ -79,23 +79,33 @@

 	if(is_station_level(z))
 		. += "fire_[GLOB.security_level]"
-		SSvis_overlays.add_vis_overlay(src, icon, "fire_[GLOB.security_level]", EMISSIVE_LAYER, EMISSIVE_PLANE, dir)
+		. += mutable_appearance(icon, "fire_[GLOB.security_level]")
+		. += emissive_appearance(icon, "fire_[GLOB.security_level]")
 	else
 		. += "fire_[SEC_LEVEL_GREEN]"
-		SSvis_overlays.add_vis_overlay(src, icon, "fire_[SEC_LEVEL_GREEN]", EMISSIVE_LAYER, EMISSIVE_PLANE, dir)
+		. += mutable_appearance(icon, "fire_[SEC_LEVEL_GREEN]")
+		. += emissive_appearance(icon, "fire_[SEC_LEVEL_GREEN]")

 	var/area/A = src.loc
 	A = A.loc

 	if(!detecting || !A.fire)
 		. += "fire_off"
-		SSvis_overlays.add_vis_overlay(src, icon, "fire_off", EMISSIVE_LAYER, EMISSIVE_PLANE, dir)
+		. += mutable_appearance(icon, "fire_off")
+		. += emissive_appearance(icon, "fire_off")
 	else if(obj_flags & EMAGGED)
 		. += "fire_emagged"
-		SSvis_overlays.add_vis_overlay(src, icon, "fire_emagged", EMISSIVE_LAYER, EMISSIVE_PLANE, dir)
+		. += mutable_appearance(icon, "fire_emagged")
+		. += emissive_appearance(icon, "fire_emagged")
 	else
 		. += "fire_on"
-		SSvis_overlays.add_vis_overlay(src, icon, "fire_on", EMISSIVE_LAYER, EMISSIVE_PLANE, dir)
+		. += mutable_appearance(icon, "fire_on")
+		. += emissive_appearance(icon, "fire_on")
+
+	if(!panel_open && detecting) //It just looks horrible with the panel open
+		. += "fire_detected"
+		. += mutable_appearance(icon, "fire_detected")
+		. += emissive_appearance(icon, "fire_detected") //Pain

 /obj/machinery/firealarm/emp_act(severity)
 	. = ..()
@@ -1,52 +1,70 @@
-// the light switch
-// can have multiple per area
-// can also operate on non-loc area through "otherarea" var
+/// The light switch. Can have multiple per area.
 /obj/machinery/light_switch
 	name = "light switch"
 	icon = 'icons/obj/power.dmi'
 	icon_state = "light1"
-	plane = ABOVE_WALL_PLANE
+	base_icon_state = "light"
 	desc = "Make dark."
-	var/on = TRUE
 	var/area/area = null
 	var/otherarea = null

+/obj/machinery/light_switch/directional/north
+	dir = SOUTH
+	pixel_y = 26
+
+/obj/machinery/light_switch/directional/south
+	dir = NORTH
+	pixel_y = -26
+
+/obj/machinery/light_switch/directional/east
+	dir = WEST
+	pixel_x = 26
+
+/obj/machinery/light_switch/directional/west
+	dir = EAST
+	pixel_x = -26
+
 /obj/machinery/light_switch/Initialize()
 	. = ..()
-	area = get_area(src)
-
+	if(istext(area))
+		area = text2path(area)
+	if(ispath(area))
+		area = GLOB.areas_by_type[area]
 	if(otherarea)
 		area = locate(text2path("/area/[otherarea]"))
+	if(!area)
+		area = get_area(src)

 	if(!name)
 		name = "light switch ([area.name])"

-	on = area.lightswitch
-	update_icon()
+/obj/machinery/light_switch/update_appearance(updates=ALL)
+	. = ..()
+	luminosity = (stat & NOPOWER) ? 0 : 1

 /obj/machinery/light_switch/update_icon_state()
 	if(stat & NOPOWER)
-		icon_state = "light-p"
-	else
-		if(on)
-			icon_state = "light1"
-		else
-			icon_state = "light0"
+		icon_state = "[base_icon_state]-p"
+		return ..()
+	icon_state = "[base_icon_state][area.lightswitch ? 1 : 0]"
+	return ..()
+
+/obj/machinery/light_switch/update_overlays()
+	. = ..()
+	if(!(stat & NOPOWER))
+		. += emissive_appearance(icon, "[base_icon_state]-glow", alpha = src.alpha)

 /obj/machinery/light_switch/examine(mob/user)
 	. = ..()
-	. += "It is [on? "on" : "off"]."
-
+	. += "It is [area.lightswitch ? "on" : "off"]."
 /obj/machinery/light_switch/interact(mob/user)
 	. = ..()
-	on = !on

-	area.lightswitch = on
-	area.update_icon()
+	area.lightswitch = !area.lightswitch
+	area.update_appearance()

 	for(var/obj/machinery/light_switch/L in area)
-		L.on = on
-		L.update_icon()
+		L.update_appearance()

 	area.power_change()

@@ -58,7 +76,7 @@
 		else
 			stat |= NOPOWER

-		update_icon()
+	update_appearance()

 /obj/machinery/light_switch/emp_act(severity)
 	. = ..()
@@ -30,7 +30,7 @@
 	integrity_failure = 0.5
 	armor = list("melee" = 50, "bullet" = 30, "laser" = 30, "energy" = 30, "bomb" = 30, "bio" = 0, "rad" = 0, "fire" = 90, "acid" = 90)
 	/// Base turret icon state
-	var/base_icon_state = "standard"
+	base_icon_state = "standard"
 	/// Scan range of the turret for locating targets
 	var/scan_range = 7
 	/// For turrets inside other objects
@@ -459,11 +459,11 @@

 		else if(iscarbon(A))
 			var/mob/living/carbon/C = A
-			//If not emagged, only target carbons that can use items
-			if(mode != TURRET_LETHAL && (C.stat || C.handcuffed || !(C.mobility_flags & MOBILITY_USE)))
+			//If not on lethal, only target carbons that aren't cuffed nor stamcrit or just plain crit.
+			if(mode != TURRET_LETHAL && (C.stat || C.handcuffed || IS_STAMCRIT(C)))
 				continue

-			//If emagged, target all but dead carbons
+			//If on lethal, target all but dead carbons
 			if(mode == TURRET_LETHAL && C.stat == DEAD)
 				continue

@@ -503,6 +503,7 @@
 			return 1

 /obj/machinery/porta_turret/proc/popUp()	//pops the turret up
+	set waitfor = FALSE
 	if(!anchored)
 		return
 	if(raising || raised)
@@ -521,6 +522,7 @@
 	layer = MOB_LAYER

 /obj/machinery/porta_turret/proc/popDown()	//pops the turret down
+	set waitfor = FALSE
 	if(raising || !raised)
 		return
 	if(stat & BROKEN)
@@ -2,6 +2,7 @@
 	name = "recharger"
 	icon = 'icons/obj/stationobjs.dmi'
 	icon_state = "recharger0"
+	base_icon_state = "recharger"
 	desc = "A charging dock for energy based weaponry."
 	use_power = IDLE_POWER_USE
 	idle_power_usage = 4
@@ -187,16 +188,29 @@
 			if(B.cell)
 				B.cell.charge = 0

+/obj/machinery/recharger/update_appearance(updates)
+	. = ..()
+	if((stat & (NOPOWER|BROKEN)) || panel_open || !anchored)
+		luminosity = 0
+		return
+	luminosity = 1

-/obj/machinery/recharger/update_icon_state()
+/obj/machinery/recharger/update_overlays()
+	. = ..()
 	if(stat & (NOPOWER|BROKEN) || !anchored)
-		icon_state = "rechargeroff"
-	else if(panel_open)
-		icon_state = "rechargeropen"
-	else if(charging)
-		if(using_power)
-			icon_state = "recharger1"
-		else
-			icon_state = "recharger2"
-	else
-		icon_state = "recharger0"
+		return
+	if(panel_open)
+		. += mutable_appearance(icon, "[base_icon_state]-open", alpha = src.alpha)
+		return
+
+	if(!charging)
+		. += mutable_appearance(icon, "[base_icon_state]-empty", alpha = src.alpha)
+		. += emissive_appearance(icon, "[base_icon_state]-empty", alpha = src.alpha)
+		return
+	if(using_power)
+		. += mutable_appearance(icon, "[base_icon_state]-charging", alpha = src.alpha)
+		. += emissive_appearance(icon, "[base_icon_state]-charging", alpha = src.alpha)
+		return
+
+	. += mutable_appearance(icon, "[base_icon_state]-full", alpha = src.alpha)
+	. += emissive_appearance(icon, "[base_icon_state]-full", alpha = src.alpha)
@@ -28,7 +28,7 @@

 	pipe_flags = PIPING_ONE_PER_TURF | PIPING_DEFAULT_LAYER_ONLY

-	var/gas_type = /datum/gas/plasma
+	var/gas_type = GAS_PLASMA
 	var/efficiency_multiplier = 1
 	var/gas_capacity = 0

@@ -66,7 +66,7 @@
 	if(panel_open)
 		. += "sheater-open"

-/obj/machinery/space_heater/process()
+/obj/machinery/space_heater/process_atmos()
 	if(!on || !is_operational())
 		if (on) // If it's broken, turn it off too
 			on = FALSE
@@ -220,7 +220,7 @@
 			usr.visible_message("<span class='notice'>[usr] switches [on ? "on" : "off"] \the [src].</span>", "<span class='notice'>You switch [on ? "on" : "off"] \the [src].</span>")
 			update_icon()
 			if (on)
-				START_PROCESSING(SSmachines, src)
+				SSair.atmos_air_machinery += src
 			. = TRUE
 		if("mode")
 			setMode = params["mode"]
@@ -288,6 +288,7 @@
 	qdel(src)

 /obj/item/bombcore/proc/defuse()
+	set waitfor = FALSE
 //Note: 	Because of how var/defused is used you shouldn't override this UNLESS you intend to set the var to 0 or
 //			otherwise remove the core/reset the wires before the end of defuse(). It will repeatedly be called otherwise.

@@ -70,7 +70,6 @@
 		cell.charge = INFINITY
 		max_integrity = INFINITY
 		obj_integrity = max_integrity
-		CHECK_TICK //Just to be on the safe side lag wise
 	else
 		if(cell.charge < cell.maxcharge)
 			for(var/obj/effect/clockwork/sigil/transmission/T in range(SIGIL_ACCESS_RANGE, src))
@@ -80,7 +79,6 @@
 					adjust_clockwork_power(-delta)
 		if(obj_integrity < max_integrity && istype(loc, /turf/open/floor/clockwork))
 			obj_integrity += min(max_integrity - obj_integrity, max_integrity / 200)
-		CHECK_TICK

 /obj/mecha/combat/neovgre/Initialize()
 	.=..()
@@ -422,12 +422,12 @@
 		return
 	var/datum/gas_mixture/GM = new
 	if(prob(10))
-		GM.adjust_moles(/datum/gas/plasma,100)
+		GM.adjust_moles(GAS_PLASMA,100)
 		GM.set_temperature(1500+T0C) //should be enough to start a fire
 		T.visible_message("[src] suddenly disgorges a cloud of heated plasma.")
 		qdel(src)
 	else
-		GM.adjust_moles(/datum/gas/plasma,5)
+		GM.adjust_moles(GAS_PLASMA,5)
 		GM.set_temperature(istype(T) ? T.air.return_temperature() : T20C)
 		T.visible_message("[src] suddenly disgorges a cloud of plasma.")
 	T.assume_air(GM)
@@ -12,7 +12,7 @@
 	var/load_audio = "sound/weapons/gun_magazine_insert_empty_1.ogg"
 	var/ammo_type

-/obj/item/mecha_ammo/proc/update_name()
+/obj/item/mecha_ammo/update_name()
 	if(!rounds)
 		name = "empty ammo box"
 		desc = "An exosuit ammuniton box that has since been emptied. Please recycle."
@@ -203,11 +203,7 @@
 	equipment.Cut()
 	cell = null
 	internal_tank = null
-	if(loc)
-		loc.assume_air(cabin_air)
-		air_update_turf()
-	else
-		qdel(cabin_air)
+	assume_air(cabin_air)
 	cabin_air = null
 	qdel(spark_system)
 	spark_system = null
@@ -257,8 +253,8 @@
 /obj/mecha/proc/add_cabin()
 	cabin_air = new(200)
 	cabin_air.set_temperature(T20C)
-	cabin_air.set_moles(/datum/gas/oxygen,O2STANDARD*cabin_air.return_volume()/(R_IDEAL_GAS_EQUATION*cabin_air.return_temperature()))
-	cabin_air.set_moles(/datum/gas/nitrogen,N2STANDARD*cabin_air.return_volume()/(R_IDEAL_GAS_EQUATION*cabin_air.return_temperature()))
+	cabin_air.set_moles(GAS_O2,O2STANDARD*cabin_air.return_volume()/(R_IDEAL_GAS_EQUATION*cabin_air.return_temperature()))
+	cabin_air.set_moles(GAS_N2,N2STANDARD*cabin_air.return_volume()/(R_IDEAL_GAS_EQUATION*cabin_air.return_temperature()))
 	return cabin_air

 /obj/mecha/proc/add_radio()
@@ -321,13 +317,7 @@

 		if(internal_damage & MECHA_INT_TANK_BREACH) //remove some air from internal tank
 			if(internal_tank)
-				var/datum/gas_mixture/int_tank_air = internal_tank.return_air()
-				var/datum/gas_mixture/leaked_gas = int_tank_air.remove_ratio(0.1)
-				if(loc)
-					loc.assume_air(leaked_gas)
-					air_update_turf()
-				else
-					qdel(leaked_gas)
+				assume_air_ratio(internal_tank.return_air(), 0.1)

 		if(internal_damage & MECHA_INT_SHORT_CIRCUIT)
 			if(get_charge())
@@ -350,8 +340,7 @@
 		if(pressure_delta > 0) //cabin pressure lower than release pressure
 			if(tank_air.return_temperature() > 0)
 				transfer_moles = pressure_delta*cabin_air.return_volume()/(cabin_air.return_temperature() * R_IDEAL_GAS_EQUATION)
-				var/datum/gas_mixture/removed = tank_air.remove(transfer_moles)
-				cabin_air.merge(removed)
+				tank_air.transfer_to(cabin_air,transfer_moles)
 		else if(pressure_delta < 0) //cabin pressure higher than release pressure
 			var/datum/gas_mixture/t_air = return_air()
 			pressure_delta = cabin_pressure - release_pressure
@@ -359,11 +348,7 @@
 				pressure_delta = min(cabin_pressure - t_air.return_pressure(), pressure_delta)
 			if(pressure_delta > 0) //if location pressure is lower than cabin pressure
 				transfer_moles = pressure_delta*cabin_air.return_volume()/(cabin_air.return_temperature() * R_IDEAL_GAS_EQUATION)
-				var/datum/gas_mixture/removed = cabin_air.remove(transfer_moles)
-				if(t_air)
-					t_air.merge(removed)
-				else //just delete the cabin gas, we're in space or some shit
-					qdel(removed)
+				cabin_air.transfer_to(t_air, transfer_moles)

 	if(occupant)
 		if(cell)
@@ -372,22 +357,22 @@
 				if(0.75 to INFINITY)
 					occupant.clear_alert("charge")
 				if(0.5 to 0.75)
-					occupant.throw_alert("charge", /obj/screen/alert/lowcell, 1)
+					occupant.throw_alert("charge", /atom/movable/screen/alert/lowcell, 1)
 				if(0.25 to 0.5)
-					occupant.throw_alert("charge", /obj/screen/alert/lowcell, 2)
+					occupant.throw_alert("charge", /atom/movable/screen/alert/lowcell, 2)
 				if(0.01 to 0.25)
-					occupant.throw_alert("charge", /obj/screen/alert/lowcell, 3)
+					occupant.throw_alert("charge", /atom/movable/screen/alert/lowcell, 3)
 				else
-					occupant.throw_alert("charge", /obj/screen/alert/emptycell)
+					occupant.throw_alert("charge", /atom/movable/screen/alert/emptycell)

 		var/integrity = obj_integrity/max_integrity*100
 		switch(integrity)
 			if(30 to 45)
-				occupant.throw_alert("mech damage", /obj/screen/alert/low_mech_integrity, 1)
+				occupant.throw_alert("mech damage", /atom/movable/screen/alert/low_mech_integrity, 1)
 			if(15 to 35)
-				occupant.throw_alert("mech damage", /obj/screen/alert/low_mech_integrity, 2)
+				occupant.throw_alert("mech damage", /atom/movable/screen/alert/low_mech_integrity, 2)
 			if(-INFINITY to 15)
-				occupant.throw_alert("mech damage", /obj/screen/alert/low_mech_integrity, 3)
+				occupant.throw_alert("mech damage", /atom/movable/screen/alert/low_mech_integrity, 3)
 			else
 				occupant.clear_alert("mech damage")
 		var/atom/checking = occupant.loc
@@ -809,6 +794,11 @@
 		return cabin_air.remove(amount)
 	return ..()

+/obj/mecha/remove_air_ratio(ratio)
+	if(use_internal_tank)
+		return cabin_air.remove_ratio(ratio)
+	return ..()
+
 /obj/mecha/return_air()
 	if(use_internal_tank)
 		return cabin_air
@@ -73,7 +73,7 @@
 	M.setDir(dir)
 	buckled_mobs |= M
 	M.update_mobility()
-	M.throw_alert("buckled", /obj/screen/alert/restrained/buckled)
+	M.throw_alert("buckled", /atom/movable/screen/alert/restrained/buckled)
 	post_buckle_mob(M)

 	SEND_SIGNAL(src, COMSIG_MOVABLE_BUCKLE, M, force)
@@ -9,6 +9,7 @@
 	resistance_flags = FIRE_PROOF | UNACIDABLE | ACID_PROOF
 	layer = ABOVE_NORMAL_TURF_LAYER
 	var/turf/target
+	var/acid_level = 0 // Removed from obj, so it goes here now


 /obj/effect/acid/Initialize(mapload, acid_pwr, acid_amt)
@@ -42,7 +43,7 @@

 	for(var/obj/O in target)
 		if(prob(20) && !(resistance_flags & UNACIDABLE))
-			if(O.acid_level < acid_level*0.3)
+			if(O.acid_level() < acid_level*0.3)
 				var/acid_used = min(acid_level*0.05, 20)
 				O.acid_act(10, acid_used)
 				acid_level = max(0, acid_level - acid_used*10)
@@ -296,7 +296,7 @@
 		var/mob/C = pick(candidates)
 		message_admins("[key_name_admin(C)] has taken control of ([key_name_admin(S)])")
 		C.transfer_ckey(S, FALSE)
-		var/list/policies = CONFIG_GET(keyed_list/policyconfig)
+		var/list/policies = CONFIG_GET(keyed_list/policy)
 		var/policy = policies[POLICYCONFIG_ON_PYROCLASTIC_SENTIENT]
 		if(policy)
 			to_chat(S,policy)
@@ -53,7 +53,7 @@
 	bloodiness = 0

 /obj/effect/decal/cleanable/blood/old/Initialize(mapload, list/datum/disease/diseases)
-	..()
+	. = ..()
 	icon_state += "-old"
 	add_blood_DNA(list("Non-human DNA" = "A+"))

@@ -19,10 +19,93 @@
 	icon = 'icons/obj/chempuff.dmi'
 	pass_flags = PASSTABLE | PASSGRILLE
 	layer = FLY_LAYER
+	var/stream = FALSE
+	var/speed = 1
+	var/range = 3
+	var/hits_left = 3
+	var/range_left = 3
+	var/firstmove = TRUE
+	var/list/hit

 /obj/effect/decal/chempuff/blob_act(obj/structure/blob/B)
 	return

+/obj/effect/decal/chempuff/Initialize(mapload, stream_mode, speed, range, hits_left, size)
+	. = ..()
+	create_reagents(size, NONE, NO_REAGENTS_VALUE)
+	stream = stream_mode
+	src.speed = speed
+	src.range = src.range_left = range
+	src.hits_left = hits_left
+	hit = list()
+
+/obj/effect/decal/chempuff/Destroy()
+	hit = null
+	return ..()
+
+/// proc called to handle us hitting something
+/obj/effect/decal/chempuff/proc/hit_thing(atom/A, bump_hit)
+	// if the thing is invisible it usually is abstract/underfloor. also, don't hit ourselves.
+	if(A == src || A.invisibility)
+		return
+	// don't hit anything on the first move unless overridden (see: we're colliding a wall blocking our move out of the first tile)
+	if(firstmove && !bump_hit)
+		return
+	// we're out of hits or we already hit it
+	if(!hits_left || hit[A])
+		return
+	var/living = isliving(A)
+	// if it's not dense and we're a stream instead of a mist, and we're not out of range
+	if(!A.density && stream && range_left && !bump_hit)
+		return
+	// non living mobs are effectively abstract
+	if(ismob(A) && !living)
+		return
+	hit[A] = TRUE
+	reagents.reaction(A, VAPOR)
+	// mobs absorb enough to decrement hits_left, as well as stuff blocking us.
+	if(ismob(A) || bump_hit)
+		hits_left--
+
+/obj/effect/decal/chempuff/Crossed(atom/movable/AM, oldloc)
+	. = ..()
+	// bump things moving into us as long as we're not on our first move/moving out of origin tile
+	hit_thing(AM)
+
+/obj/effect/decal/chempuff/Bump(atom/A)
+	. = ..()
+	// if we hit something blocking our movement, collide it regardless even if we're still on our origin tile
+	hit_thing(A, TRUE)
+
+/obj/effect/decal/chempuff/proc/run_puff(atom/target)
+	var/safety = 255
+	while(range_left)
+		if(!safety--)
+			CRASH("Spray ran out of safety.")
+		// move towards new turf
+		step_towards(src, target)
+		if(firstmove)
+			// mark first movement so future Cross()es result in collisions
+			firstmove = FALSE
+		// decrement range
+		range_left--
+		// if we got nullspaced, exit
+		if(!isturf(loc))
+			break
+		// hit everything in it
+		for(var/atom/T in loc)
+			hit_thing(T)
+			// if we got deleted or ran out of hits, stop
+			if(!hits_left || !isturf(loc))
+				break
+		if(!hits_left || !isturf(loc))
+			// yeah yeah sue me it's copypasted code but I don't want to declare a var.
+			break
+		// hit the turf
+		hit_thing(loc)
+		sleep(speed)
+	qdel(src)
+
 /obj/effect/decal/fakelattice
 	name = "lattice"
 	desc = "A lightweight support lattice."
@@ -40,8 +40,8 @@
 	if(hotspot && istype(T) && T.air)
 		qdel(hotspot)
 		var/datum/gas_mixture/G = T.air
-		var/plas_amt = min(30,G.get_moles(/datum/gas/plasma))  //Absorb some plasma
-		G.adjust_moles(/datum/gas/plasma,-plas_amt)
+		var/plas_amt = min(30,G.get_moles(GAS_PLASMA))  //Absorb some plasma
+		G.adjust_moles(GAS_PLASMA,-plas_amt)
 		absorbed_plasma += plas_amt
 		if(G.return_temperature() > T20C)
 			G.set_temperature(max(G.return_temperature()/2,T20C))
@@ -322,7 +322,7 @@
 			for(var/obj/effect/hotspot/H in O)
 				qdel(H)
 			for(var/I in G.get_gases())
-				if(I == /datum/gas/oxygen || I == /datum/gas/nitrogen)
+				if(I == GAS_O2 || I == GAS_N2)
 					continue
 				G.set_moles(I, 0)
 			O.air_update_turf()
@@ -341,7 +341,7 @@
 		return TRUE
 	. = ..()

-/obj/structure/foamedmetal/resin/BlockSuperconductivity()
+/obj/structure/foamedmetal/resin/BlockThermalConductivity()
 	return TRUE

 #undef ALUMINUM_FOAM
@@ -170,9 +170,9 @@
 			T.air_update_turf()
 			for(var/obj/effect/hotspot/H in T)
 				qdel(H)
-			if(G.get_moles(/datum/gas/plasma))
-				G.adjust_moles(/datum/gas/nitrogen, G.get_moles(/datum/gas/plasma))
-				G.set_moles(/datum/gas/plasma, 0)
+			if(G.get_moles(GAS_PLASMA))
+				G.adjust_moles(GAS_N2, G.get_moles(GAS_PLASMA))
+				G.set_moles(GAS_PLASMA, 0)
 		if (weldvents)
 			for(var/obj/machinery/atmospherics/components/unary/U in T)
 				if(!isnull(U.welded) && !U.welded) //must be an unwelded vent pump or vent scrubber.
@@ -73,6 +73,8 @@
 		myseed.adjust_yield(rand(-3,2))
 		myseed.adjust_production(rand(-3,3))
 		myseed.endurance = clamp(myseed.endurance + rand(-3,2), 0, 100) // adjust_endurance has a min value of 10, need to edit directly
+	// Scale health to endurance
+	max_integrity = obj_integrity = 10 + myseed.endurance / 2
 	delay_spread = delay_spread - myseed.production * 100 //So the delay goes DOWN with better stats instead of up. :I
 	var/datum/plant_gene/trait/glow/G = myseed.get_gene(/datum/plant_gene/trait/glow)
 	if(ispath(G)) // Seeds were ported to initialize so their genes are still typepaths here, luckily their initializer is smart enough to handle us doing this
@@ -193,8 +195,14 @@
 /obj/structure/glowshroom/proc/Decay(spread, amount)
 	if (spread) // Decay due to spread
 		myseed.endurance -= amount
+		max_integrity = min(max_integrity, 10 + myseed.endurance / 2)
+		if(obj_integrity > max_integrity)
+			obj_integrity = max_integrity
 	else // Timed decay
 		myseed.endurance -= 1
+		max_integrity = min(max_integrity, 10 + myseed.endurance / 2)
+		if(obj_integrity > max_integrity)
+			obj_integrity = max_integrity
 		if (myseed.endurance > 0)
 			addtimer(CALLBACK(src, .proc/Decay), delay_decay, FALSE) // Recall decay timer
 			return
@@ -1,6 +1,6 @@
 #define CELSIUS_TO_KELVIN(T_K)	((T_K) + T0C)

-#define OPTIMAL_TEMP_K_PLA_BURN_SCALE(PRESSURE_P,PRESSURE_O,TEMP_O)	(((PRESSURE_P) * GLOB.meta_gas_specific_heats[/datum/gas/plasma]) / (((PRESSURE_P) * GLOB.meta_gas_specific_heats[/datum/gas/plasma] + (PRESSURE_O) * GLOB.meta_gas_specific_heats[/datum/gas/oxygen]) / PLASMA_UPPER_TEMPERATURE - (PRESSURE_O) * GLOB.meta_gas_specific_heats[/datum/gas/oxygen] / CELSIUS_TO_KELVIN(TEMP_O)))
+#define OPTIMAL_TEMP_K_PLA_BURN_SCALE(PRESSURE_P,PRESSURE_O,TEMP_O)	(((PRESSURE_P) * GLOB.gas_data.specific_heats[GAS_PLASMA]) / (((PRESSURE_P) * GLOB.gas_data.specific_heats[GAS_PLASMA] + (PRESSURE_O) * GLOB.gas_data.specific_heats[GAS_O2]) / PLASMA_UPPER_TEMPERATURE - (PRESSURE_O) * GLOB.gas_data.specific_heats[GAS_O2] / CELSIUS_TO_KELVIN(TEMP_O)))
 #define OPTIMAL_TEMP_K_PLA_BURN_RATIO(PRESSURE_P,PRESSURE_O,TEMP_O)	(CELSIUS_TO_KELVIN(TEMP_O) * PLASMA_OXYGEN_FULLBURN * (PRESSURE_P) / (PRESSURE_O))

 /obj/effect/spawner/newbomb
@@ -19,10 +19,10 @@
 	var/obj/item/tank/internals/plasma/PT = new(V)
 	var/obj/item/tank/internals/oxygen/OT = new(V)

-	PT.air_contents.set_moles(/datum/gas/plasma, pressure_p*PT.volume/(R_IDEAL_GAS_EQUATION*CELSIUS_TO_KELVIN(temp_p)))
+	PT.air_contents.set_moles(GAS_PLASMA, pressure_p*PT.volume/(R_IDEAL_GAS_EQUATION*CELSIUS_TO_KELVIN(temp_p)))
 	PT.air_contents.set_temperature(CELSIUS_TO_KELVIN(temp_p))

-	OT.air_contents.set_moles(/datum/gas/oxygen, pressure_o*OT.volume/(R_IDEAL_GAS_EQUATION*CELSIUS_TO_KELVIN(temp_o)))
+	OT.air_contents.set_moles(GAS_O2, pressure_o*OT.volume/(R_IDEAL_GAS_EQUATION*CELSIUS_TO_KELVIN(temp_o)))
 	OT.air_contents.set_temperature(CELSIUS_TO_KELVIN(temp_o))

 	V.tank_one = PT
@@ -17,7 +17,7 @@
 		line = null
 	if(qdel_in)
 		QDEL_IN(PB, qdel_in)
-d
+
 /obj/effect/projectile/tracer
 	name = "beam"
 	icon = 'icons/obj/projectiles_tracer.dmi'
@@ -352,15 +352,6 @@ GLOBAL_VAR_INIT(embedpocalypse, FALSE) // if true, all items will be able to emb
 				C.update_damage_overlays()
 			return

-	if(acid_level > 20 && ismob(loc))// so we can still remove the clothes on us that have acid.
-		var/mob/living/carbon/C = user
-		if(istype(C))
-			if(!C.gloves || (!(C.gloves.resistance_flags & (UNACIDABLE|ACID_PROOF))))
-				to_chat(user, "<span class='warning'>The acid on [src] burns your hand!</span>")
-				var/obj/item/bodypart/affecting = C.get_bodypart("[(user.active_hand_index % 2 == 0) ? "r" : "l" ]_arm")
-				if(affecting && affecting.receive_damage( 0, 5 ))		// 5 burn damage
-					C.update_damage_overlays()
-
 	if(!(interaction_flags_item & INTERACT_ITEM_ATTACK_HAND_PICKUP))		//See if we're supposed to auto pickup.
 		return

@@ -461,6 +452,21 @@ GLOBAL_VAR_INIT(embedpocalypse, FALSE) // if true, all items will be able to emb
 	SHOULD_CALL_PARENT(TRUE)
 	SEND_SIGNAL(src, COMSIG_ITEM_PICKUP, user)
 	item_flags |= IN_INVENTORY
+	if(item_flags & (ITEM_CAN_BLOCK | ITEM_CAN_PARRY) && user.client && !(type in user.client.block_parry_hinted))
+		var/list/dat = list("<span class='boldnotice'>You have picked up an item that can be used to block and/or parry:</span>")
+		// cit change - parry/block feedback
+		var/datum/block_parry_data/data = return_block_parry_datum(block_parry_data)
+		if(item_flags & ITEM_CAN_BLOCK)
+			dat += "[src] can be used to block damage using directional block. Press your active block keybind to use it."
+			if(data.block_automatic_enabled)
+				dat += "[src] is also capable of automatically blocking damage, if you are facing the right direction (usually towards your attacker)!"
+		if(item_flags & ITEM_CAN_PARRY)
+			dat += "[src] can be used to parry damage using active parry. Pressed your active parry keybind to initiate a timed parry sequence."
+			if(data.parry_automatic_enabled)
+				dat += "[src] is also capable of automatically parrying an incoming attack, if your mouse is over your attacker at the time if you being hit in a direct, melee attack."
+		dat += "Examine [src] to get a full readout of its block/parry stats."
+		to_chat(user, dat.Join("<br>"))
+		user.client.block_parry_hinted |= type

 // called when "found" in pockets and storage items. Returns 1 if the search should end.
 /obj/item/proc/on_found(mob/finder)
@@ -504,12 +510,13 @@ GLOBAL_VAR_INIT(embedpocalypse, FALSE) // if true, all items will be able to emb
 */
 /obj/item/proc/equipped(mob/user, slot, initial = FALSE)
 	SHOULD_CALL_PARENT(TRUE)
-	SEND_SIGNAL(src, COMSIG_ITEM_EQUIPPED, user, slot)
+	var/signal_flags = SEND_SIGNAL(src, COMSIG_ITEM_EQUIPPED, user, slot)
 	current_equipped_slot = slot
-	for(var/X in actions)
-		var/datum/action/A = X
-		if(item_action_slot_check(slot, user, A)) //some items only give their actions buttons when in a specific slot.
-			A.Grant(user)
+	if(!(signal_flags & COMPONENT_NO_GRANT_ACTIONS))
+		for(var/X in actions)
+			var/datum/action/A = X
+			if(item_action_slot_check(slot, user, A)) //some items only give their actions buttons when in a specific slot.
+				A.Grant(user)
 	item_flags |= IN_INVENTORY
 	// if(!initial)
 	// 	if(equip_sound && (slot_flags & slot))
@@ -242,12 +242,18 @@
 		return BULLET_ACT_HIT

 /obj/effect/chrono_field/assume_air()
-	return 0
+	return null
+
+/obj/effect/chrono_field/assume_air_moles()
+	return null
+
+/obj/effect/chrono_field/assume_air_ratio()
+	return null

 /obj/effect/chrono_field/return_air() //we always have nominal air and temperature
 	var/datum/gas_mixture/GM = new
-	GM.set_moles(/datum/gas/oxygen, MOLES_O2STANDARD)
-	GM.set_moles(/datum/gas/nitrogen, MOLES_N2STANDARD)
+	GM.set_moles(GAS_O2, MOLES_O2STANDARD)
+	GM.set_moles(GAS_N2, MOLES_N2STANDARD)
 	GM.set_temperature(T20C)
 	return GM

@@ -387,6 +387,10 @@ CIGARETTE PACKETS ARE IN FANCY.DM
 	throwforce = 0
 	grind_results = list(/datum/reagent/carbon = 2)

+/obj/item/cigbutt/Initialize()
+	. = ..()
+	AddElement(/datum/element/trash)
+
 /obj/item/cigbutt/cigarbutt
 	name = "cigar butt"
 	desc = "A manky old cigar butt."
@@ -99,8 +99,8 @@
 	. = ..()
 	if(!. && ismob(loc) && loc == usr)
 		var/mob/M = loc
-		if(!M.incapacitated() && istype(over_object, /obj/screen/inventory/hand))
-			var/obj/screen/inventory/hand/H = over_object
+		if(!M.incapacitated() && istype(over_object, /atom/movable/screen/inventory/hand))
+			var/atom/movable/screen/inventory/hand/H = over_object
 			M.putItemFromInventoryInHandIfPossible(src, H.held_index)

 /obj/item/defibrillator/attackby(obj/item/W, mob/user, params)
@@ -283,7 +283,7 @@
 	var/combat = FALSE //If it penetrates armor and gives additional functionality
 	var/grab_ghost = FALSE
 	var/tlimit = DEFIB_TIME_LIMIT * 10
-	var/base_icon_state = "defibpaddles"
+	base_icon_state = "defibpaddles"
 	var/disarm_shock_time = 10
 	var/wielded = FALSE // track wielded status on item

@@ -620,7 +620,7 @@
 					if(req_defib)
 						if(defib.healdisk)
 							H.heal_overall_damage(25, 25)
-					var/list/policies = CONFIG_GET(keyed_list/policyconfig)
+					var/list/policies = CONFIG_GET(keyed_list/policy)
 					var/timelimit = CONFIG_GET(number/defib_cmd_time_limit) * 10 //the config is in seconds, not deciseconds
 					var/late = timelimit && (tplus > timelimit)
 					var/policy = late? policies[POLICYCONFIG_ON_DEFIB_LATE] : policies[POLICYCONFIG_ON_DEFIB_INTACT]
@@ -447,7 +447,7 @@ GLOBAL_LIST_EMPTY(PDAs)
 						for(var/id in environment.get_gases())
 							var/gas_level = environment.get_moles(id)/total_moles
 							if(gas_level > 0)
-								dat += "[GLOB.meta_gas_names[id]]: [round(gas_level*100, 0.01)]%<br>"
+								dat += "[GLOB.gas_data.names[id]]: [round(gas_level*100, 0.01)]%<br>"

 					dat += "Temperature: [round(environment.return_temperature()-T0C)]&deg;C<br>"
 				dat += "<br>"
@@ -184,7 +184,7 @@

 /obj/item/multitool/ai_detect/proc/show_hud(mob/user)
 	if(user && hud_type)
-		var/obj/screen/plane_master/camera_static/PM = user.hud_used.plane_masters["[CAMERA_STATIC_PLANE]"]
+		var/atom/movable/screen/plane_master/camera_static/PM = user.hud_used.plane_masters["[CAMERA_STATIC_PLANE]"]
 		PM.alpha = 150
 		var/datum/atom_hud/H = GLOB.huds[hud_type]
 		if(!H.hudusers[user])
@@ -194,7 +194,7 @@

 /obj/item/multitool/ai_detect/proc/remove_hud(mob/user)
 	if(user && hud_type)
-		var/obj/screen/plane_master/camera_static/PM = user.hud_used.plane_masters["[CAMERA_STATIC_PLANE]"]
+		var/atom/movable/screen/plane_master/camera_static/PM = user.hud_used.plane_masters["[CAMERA_STATIC_PLANE]"]
 		PM.alpha = 255
 		var/datum/atom_hud/H = GLOB.huds[hud_type]
 		H.remove_hud_from(user)
@@ -122,7 +122,7 @@
 /obj/item/paicard/proc/setPersonality(mob/living/silicon/pai/personality)
 	src.pai = personality
 	src.add_overlay("pai-null")
-	var/list/policies = CONFIG_GET(keyed_list/policyconfig)
+	var/list/policies = CONFIG_GET(keyed_list/policy)
 	var/policy = policies[POLICYCONFIG_PAI]
 	if(policy)
 		to_chat(personality, policy)
@@ -130,8 +130,8 @@
 	. = ..()
 	if(ismob(loc))
 		var/mob/M = loc
-		if(!M.incapacitated() && istype(over_object, /obj/screen/inventory/hand))
-			var/obj/screen/inventory/hand/H = over_object
+		if(!M.incapacitated() && istype(over_object, /atom/movable/screen/inventory/hand))
+			var/atom/movable/screen/inventory/hand/H = over_object
 			M.putItemFromInventoryInHandIfPossible(src, H.held_index)

 /obj/item/storage/portable_chem_mixer/ui_interact(mob/user, datum/tgui/ui)
@@ -426,18 +426,21 @@ GENETICS SCANNER
 			if(ishuman(C))
 				if(H.is_bleeding())
 					msg += "<span class='danger'>Subject is bleeding!</span>\n"
-			var/blood_percent =  round((C.scan_blood_volume() / (BLOOD_VOLUME_NORMAL * C.blood_ratio))*100)
+			var/blood_percent = round((C.scan_blood_volume() / (BLOOD_VOLUME_NORMAL * C.blood_ratio))*100)
+			var/integrated_blood_percent = round((C.integrating_blood / (BLOOD_VOLUME_NORMAL * C.blood_ratio))*100)
 			var/blood_type = C.dna.blood_type
 			if(!(blood_typepath in GLOB.blood_reagent_types))
 				var/datum/reagent/R = GLOB.chemical_reagents_list[blood_typepath]
 				if(R)
 					blood_type = R.name
-			if(C.scan_blood_volume() <= (BLOOD_VOLUME_SAFE*C.blood_ratio) && C.scan_blood_volume() > (BLOOD_VOLUME_OKAY*C.blood_ratio))
-				msg += "<span class='danger'>LOW blood level [blood_percent] %, [C.scan_blood_volume()] cl,</span> <span class='info'>type: [blood_type]</span>\n"
-			else if(C.scan_blood_volume() <= (BLOOD_VOLUME_OKAY*C.blood_ratio))
-				msg += "<span class='danger'>CRITICAL blood level [blood_percent] %, [C.scan_blood_volume()] cl,</span> <span class='info'>type: [blood_type]</span>\n"
+
+			if((C.scan_blood_volume() + C.integrating_blood) <= (BLOOD_VOLUME_SAFE * C.blood_ratio) && (C.scan_blood_volume() + C.integrating_blood) > (BLOOD_VOLUME_OKAY*C.blood_ratio))
+				msg += "<span class='danger'>LOW blood level [blood_percent] %, [C.scan_blood_volume()] cl[C.integrating_blood? ", with [integrated_blood_percent] % of it integrating, [C.integrating_blood] cl " : ""].</span> <span class='info'>type: [blood_type]</span>\n"
+			else if((C.scan_blood_volume() + C.integrating_blood) <= (BLOOD_VOLUME_OKAY * C.blood_ratio))
+				msg += "<span class='danger'>CRITICAL blood level [blood_percent] %, [C.scan_blood_volume()] cl[C.integrating_blood? ", with [integrated_blood_percent] % of it integrating, [C.integrating_blood] cl " : ""].</span> <span class='info'>type: [blood_type]</span>\n"
 			else
-				msg += "<span class='info'>Blood level [blood_percent] %, [C.scan_blood_volume()] cl, type: [blood_type]</span>\n"
+				msg += "<span class='info'>Blood level [blood_percent] %, [C.scan_blood_volume()] cl[C.integrating_blood? ", with [integrated_blood_percent] % of it integrating, [C.integrating_blood] cl " : ""]. type: [blood_type]</span>\n"
+

 		var/cyberimp_detect
 		for(var/obj/item/organ/cyberimp/CI in C.internal_organs)
@@ -708,7 +711,7 @@ GENETICS SCANNER
 			for(var/id in air_contents.get_gases())
 				if(air_contents.get_moles(id) >= 0.005)
 					var/gas_concentration = air_contents.get_moles(id)/total_moles
-					to_chat(user, "<span class='notice'>[GLOB.meta_gas_names[id]]: [round(gas_concentration*100, 0.01)] % ([round(air_contents.get_moles(id), 0.01)] mol)</span>")
+					to_chat(user, "<span class='notice'>[GLOB.gas_data.names[id]]: [round(gas_concentration*100, 0.01)] % ([round(air_contents.get_moles(id), 0.01)] mol)</span>")
 			to_chat(user, "<span class='notice'>Temperature: [round(temperature - T0C,0.01)] &deg;C ([round(temperature, 0.01)] K)</span>")

 		else
@@ -721,7 +724,7 @@ GENETICS SCANNER
 			var/instability = round(cached_scan_results["fusion"], 0.01)
 			var/tier = instability2text(instability)
 			to_chat(user, "<span class='boldnotice'>Large amounts of free neutrons detected in the air indicate that a fusion reaction took place.</span>")
-			to_chat(user, "<span class='notice'>Instability of the last fusion reaction: [instability]\n This indicates it was [tier].</span>")
+			to_chat(user, "<span class='notice'>Instability of the last fusion reaction: [instability]\n This indicates it was [tier]</span>")
 	return

 /obj/item/analyzer/proc/scan_turf(mob/user, turf/location)
@@ -739,36 +742,36 @@ GENETICS SCANNER
 		to_chat(user, "<span class='alert'>Pressure: [round(pressure, 0.01)] kPa</span>")
 	if(total_moles)

-		var/o2_concentration = environment.get_moles(/datum/gas/oxygen)/total_moles
-		var/n2_concentration = environment.get_moles(/datum/gas/nitrogen)/total_moles
-		var/co2_concentration = environment.get_moles(/datum/gas/carbon_dioxide)/total_moles
-		var/plasma_concentration = environment.get_moles(/datum/gas/plasma)/total_moles
+		var/o2_concentration = environment.get_moles(GAS_O2)/total_moles
+		var/n2_concentration = environment.get_moles(GAS_N2)/total_moles
+		var/co2_concentration = environment.get_moles(GAS_CO2)/total_moles
+		var/plasma_concentration = environment.get_moles(GAS_PLASMA)/total_moles

 		if(abs(n2_concentration - N2STANDARD) < 20)
-			to_chat(user, "<span class='info'>Nitrogen: [round(n2_concentration*100, 0.01)] % ([round(environment.get_moles(/datum/gas/nitrogen), 0.01)] mol)</span>")
+			to_chat(user, "<span class='info'>Nitrogen: [round(n2_concentration*100, 0.01)] % ([round(environment.get_moles(GAS_N2), 0.01)] mol)</span>")
 		else
-			to_chat(user, "<span class='alert'>Nitrogen: [round(n2_concentration*100, 0.01)] % ([round(environment.get_moles(/datum/gas/nitrogen), 0.01)] mol)</span>")
+			to_chat(user, "<span class='alert'>Nitrogen: [round(n2_concentration*100, 0.01)] % ([round(environment.get_moles(GAS_N2), 0.01)] mol)</span>")

 		if(abs(o2_concentration - O2STANDARD) < 2)
-			to_chat(user, "<span class='info'>Oxygen: [round(o2_concentration*100, 0.01)] % ([round(environment.get_moles(/datum/gas/oxygen), 0.01)] mol)</span>")
+			to_chat(user, "<span class='info'>Oxygen: [round(o2_concentration*100, 0.01)] % ([round(environment.get_moles(GAS_O2), 0.01)] mol)</span>")
 		else
-			to_chat(user, "<span class='alert'>Oxygen: [round(o2_concentration*100, 0.01)] % ([round(environment.get_moles(/datum/gas/oxygen), 0.01)] mol)</span>")
+			to_chat(user, "<span class='alert'>Oxygen: [round(o2_concentration*100, 0.01)] % ([round(environment.get_moles(GAS_O2), 0.01)] mol)</span>")

 		if(co2_concentration > 0.01)
-			to_chat(user, "<span class='alert'>CO2: [round(co2_concentration*100, 0.01)] % ([round(environment.get_moles(/datum/gas/carbon_dioxide), 0.01)] mol)</span>")
+			to_chat(user, "<span class='alert'>CO2: [round(co2_concentration*100, 0.01)] % ([round(environment.get_moles(GAS_CO2), 0.01)] mol)</span>")
 		else
-			to_chat(user, "<span class='info'>CO2: [round(co2_concentration*100, 0.01)] % ([round(environment.get_moles(/datum/gas/carbon_dioxide), 0.01)] mol)</span>")
+			to_chat(user, "<span class='info'>CO2: [round(co2_concentration*100, 0.01)] % ([round(environment.get_moles(GAS_CO2), 0.01)] mol)</span>")

 		if(plasma_concentration > 0.005)
-			to_chat(user, "<span class='alert'>Plasma: [round(plasma_concentration*100, 0.01)] % ([round(environment.get_moles(/datum/gas/plasma), 0.01)] mol)</span>")
+			to_chat(user, "<span class='alert'>Plasma: [round(plasma_concentration*100, 0.01)] % ([round(environment.get_moles(GAS_PLASMA), 0.01)] mol)</span>")
 		else
-			to_chat(user, "<span class='info'>Plasma: [round(plasma_concentration*100, 0.01)] % ([round(environment.get_moles(/datum/gas/plasma), 0.01)] mol)</span>")
+			to_chat(user, "<span class='info'>Plasma: [round(plasma_concentration*100, 0.01)] % ([round(environment.get_moles(GAS_PLASMA), 0.01)] mol)</span>")

 		for(var/id in environment.get_gases())
 			if(id in GLOB.hardcoded_gases)
 				continue
 			var/gas_concentration = environment.get_moles(id)/total_moles
-			to_chat(user, "<span class='alert'>[GLOB.meta_gas_names[id]]: [round(gas_concentration*100, 0.01)] % ([round(environment.get_moles(id), 0.01)] mol)</span>")
+			to_chat(user, "<span class='alert'>[GLOB.gas_data.names[id]]: [round(gas_concentration*100, 0.01)] % ([round(environment.get_moles(id), 0.01)] mol)</span>")
 		to_chat(user, "<span class='info'>Temperature: [round(environment.return_temperature()-T0C, 0.01)] &deg;C ([round(environment.return_temperature(), 0.01)] K)</span>")

 		if(cached_scan_results && cached_scan_results["fusion"]) //notify the user if a fusion reaction was detected
@@ -78,22 +78,29 @@ effective or pretty fucking useless.
 	var/ui_x = 320
 	var/ui_y = 335

+/obj/item/healthanalyzer/rad_laser/Initialize()
+	. = ..()
+	AddComponent(/datum/component/identification/syndicate, ID_COMPONENT_DEL_ON_IDENTIFY, ID_COMPONENT_EFFECT_NO_ACTIONS, ID_COMPONENT_IDENTIFY_WITH_DECONSTRUCTOR)
+
 /obj/item/healthanalyzer/rad_laser/attack(mob/living/M, mob/living/user)
 	if(!stealth || !irradiate)
-		..()
+		return ..()
+	var/knowledge = SEND_SIGNAL(src, COMSIG_IDENTIFICATION_KNOWLEDGE_CHECK, user) == ID_COMPONENT_KNOWLEDGE_FULL
 	if(!irradiate)
 		return
 	if(!used)
-		log_combat(user, M, "irradiated", src)
+		log_combat(user, M, "[knowledge? "" : "unknowingly "]irradiated", src)
 		var/cooldown = get_cooldown()
 		used = TRUE
 		icon_state = "health1"
 		addtimer(VARSET_CALLBACK(src, used, FALSE), cooldown)
 		addtimer(VARSET_CALLBACK(src, icon_state, "health"), cooldown)
-		to_chat(user, "<span class='warning'>Successfully irradiated [M].</span>")
+		if(knowledge)
+			to_chat(user, "<span class='warning'>Successfully irradiated [M].</span>")
 		addtimer(CALLBACK(src, .proc/radiation_aftereffect, M, intensity), (wavelength+(intensity*4))*5)
 	else
-		to_chat(user, "<span class='warning'>The radioactive microlaser is still recharging.</span>")
+		if(knowledge)
+			to_chat(user, "<span class='warning'>The radioactive microlaser is still recharging.</span>")

 /obj/item/healthanalyzer/rad_laser/proc/radiation_aftereffect(mob/living/M, passed_intensity)
 	if(QDELETED(M) || !ishuman(M) || HAS_TRAIT(M, TRAIT_RADIMMUNE))
@@ -109,7 +116,9 @@ effective or pretty fucking useless.
 	interact(user)

 /obj/item/healthanalyzer/rad_laser/interact(mob/user)
-	ui_interact(user)
+	var/knowledge = SEND_SIGNAL(src, COMSIG_IDENTIFICATION_KNOWLEDGE_CHECK, user) == ID_COMPONENT_KNOWLEDGE_FULL
+	if(knowledge)
+		ui_interact(user)

 /obj/item/healthanalyzer/rad_laser/ui_state(mob/user)
 	return GLOB.hands_state
@@ -172,20 +172,15 @@
 		if(!target_self)
 			target.set_volume(target.return_volume() + tank_two.volume)
 		target.set_volume(target.return_volume() + tank_one.air_contents.return_volume())
-	var/datum/gas_mixture/temp
-	temp = tank_one.air_contents.remove_ratio(1)
-	target.merge(temp)
+	tank_one.air_contents.transfer_ratio_to(target, 1)
 	if(!target_self)
-		temp = tank_two.air_contents.remove_ratio(1)
-		target.merge(temp)
+		tank_two.air_contents.transfer_ratio_to(target, 1)

 /obj/item/transfer_valve/proc/split_gases()
 	if (!valve_open || !tank_one || !tank_two)
 		return
 	var/ratio1 = tank_one.air_contents.return_volume()/tank_two.air_contents.return_volume()
-	var/datum/gas_mixture/temp
-	temp = tank_two.air_contents.remove_ratio(ratio1)
-	tank_one.air_contents.merge(temp)
+	tank_two.air_contents.transfer_ratio_to(tank_one.air_contents, ratio1)
 	tank_two.air_contents.set_volume(tank_two.air_contents.return_volume() - tank_one.air_contents.return_volume())

 /*
@@ -41,7 +41,7 @@

 /datum/block_parry_data/dual_esword // please run at the man going apeshit with his funny doublesword
 	can_block_directions = BLOCK_DIR_NORTH | BLOCK_DIR_NORTHEAST | BLOCK_DIR_NORTHWEST | BLOCK_DIR_WEST | BLOCK_DIR_EAST
-	block_damage_absorption = 2
+	block_damage_absorption = 5
 	block_damage_multiplier = 0.15
 	block_damage_multiplier_override = list(
 		ATTACK_TYPE_MELEE = 0.25
@@ -59,7 +59,7 @@
 	)

 	parry_time_windup = 0
-	parry_time_active = 8
+	parry_time_active = 12
 	parry_time_spindown = 0
 	// we want to signal to players the most dangerous phase, the time when automatic counterattack is a thing.
 	parry_time_windup_visual_override = 1
@@ -69,12 +69,10 @@
 	parry_time_perfect = 2		// first ds isn't perfect
 	parry_time_perfect_leeway = 1
 	parry_imperfect_falloff_percent = 10
-	parry_efficiency_to_counterattack = 100
 	parry_efficiency_considered_successful = 25		// VERY generous
 	parry_failed_stagger_duration = 3 SECONDS
-	parry_failed_clickcd_duration = CLICK_CD_MELEE

-/obj/item/dualsaber/active_block(mob/living/owner, atom/object, damage, attack_text, attack_type, armour_penetration, mob/attacker, def_zone, final_block_chance, list/block_return, override_direction)
+/obj/item/dualsaber/directional_block(mob/living/owner, atom/object, damage, attack_text, attack_type, armour_penetration, mob/attacker, def_zone, final_block_chance, list/block_return, override_direction)
 	if((attack_type & ATTACK_TYPE_PROJECTILE) && is_energy_reflectable_projectile(object))
 		block_return[BLOCK_RETURN_REDIRECT_METHOD] = REDIRECT_METHOD_RETURN_TO_SENDER
 		return BLOCK_SUCCESS | BLOCK_REDIRECTED | BLOCK_SHOULD_REDIRECT
@@ -83,7 +81,7 @@
 /obj/item/dualsaber/on_active_parry(mob/living/owner, atom/object, damage, attack_text, attack_type, armour_penetration, mob/attacker, def_zone, list/block_return, parry_efficiency, parry_time)
 	. = ..()
 	if(parry_efficiency >= 90)		// perfect parry
-		block_return[BLOCK_RETURN_REDIRECT_METHOD] = REDIRECT_METHOD_RETURN_TO_SENDER
+		block_return[BLOCK_RETURN_REDIRECT_METHOD] = REDIRECT_METHOD_DEFLECT
 		. |= BLOCK_SHOULD_REDIRECT

 /obj/item/dualsaber/Initialize()
@@ -369,14 +367,12 @@
 	parry_time_perfect = 1
 	parry_time_perfect_leeway = 1
 	parry_imperfect_falloff_percent = 7.5
-	parry_efficiency_to_counterattack = 100
 	parry_efficiency_considered_successful = 80
 	parry_efficiency_perfect = 120
 	parry_efficiency_perfect_override = list(
 		TEXT_ATTACK_TYPE_PROJECTILE = 30,
 	)
 	parry_failed_stagger_duration = 3 SECONDS
-	parry_failed_clickcd_duration = 2 SECONDS

 /obj/item/dualsaber/hypereutactic/chaplain/ComponentInitialize()
 	. = ..()
@@ -45,15 +45,15 @@
 	// no attacking while blocking
 	block_lock_attacking = TRUE

-	parry_time_windup = 1
-	parry_time_active = 5
+	parry_time_windup = 0
+	parry_time_active = 7
 	parry_time_spindown = 0
 	parry_time_spindown_visual_override = 1
-	parry_flags = PARRY_DEFAULT_HANDLE_FEEDBACK | PARRY_LOCK_ATTACKING		// no attacking while parrying
+	parry_flags = PARRY_DEFAULT_HANDLE_FEEDBACK		// no attacking while parrying
 	parry_time_perfect = 0
 	parry_time_perfect_leeway = 0.5
-	parry_efficiency_perfect = 100
-	parry_imperfect_falloff_percent = 1
+	parry_efficiency_perfect = 85
+	parry_imperfect_falloff_percent = 10
 	parry_imperfect_falloff_percent_override = list(
 		TEXT_ATTACK_TYPE_PROJECTILE = 45		// really crappy vs projectiles
 	)
@@ -61,9 +61,7 @@
 		TEXT_ATTACK_TYPE_PROJECTILE = 1		// extremely harsh window for projectiles
 	)
 	// not extremely punishing to fail, but no spamming the parry.
-	parry_cooldown = 2.5 SECONDS
 	parry_failed_stagger_duration = 1.5 SECONDS
-	parry_failed_clickcd_duration = 1 SECONDS

 /obj/item/electrostaff/Initialize(mapload)
 	. = ..()
@@ -210,13 +210,11 @@
 	//TODO: DEFERRED Consider checking to make sure tank pressure is high enough before doing this...
 	//Transfer 5% of current tank air contents to turf
 	var/datum/gas_mixture/air_transfer = ptank.air_contents.remove_ratio(release_amount)
-	air_transfer.set_moles(/datum/gas/plasma, air_transfer.get_moles(/datum/gas/plasma) * 5)
+	air_transfer.set_moles(GAS_PLASMA, air_transfer.get_moles(GAS_PLASMA) * 5)
 	target.assume_air(air_transfer)
 	//Burn it based on transfered gas
 	target.hotspot_expose((ptank.air_contents.return_temperature()*2) + 380,500)
 	//location.hotspot_expose(1000,500,1)
-	SSair.add_to_active(target, 0)
-

 /obj/item/flamethrower/Initialize(mapload)
 	. = ..()
@@ -14,7 +14,7 @@ GLOBAL_LIST_INIT(gift_item_blacklist, typecacheof(list(
 	/obj/mafia_game_board,
 	/obj/docking_port,
 	/obj/shapeshift_holder,
-	/obj/screen
+	/atom/movable/screen
 	)))

 GLOBAL_LIST_EMPTY(possible_gifts)
@@ -1,6 +1,8 @@
 /obj/item/restraints
 	breakouttime = 600
 	var/demoralize_criminals = TRUE // checked on carbon/carbon.dm to decide wheter to apply the handcuffed negative moodlet or not.
+	/// allow movement at all during breakout
+	var/allow_breakout_movement = FALSE

 /obj/item/restraints/suicide_act(mob/living/carbon/user)
 	user.visible_message("<span class='suicide'>[user] is strangling [user.p_them()]self with [src]! It looks like [user.p_theyre()] trying to commit suicide!</span>")
@@ -243,6 +245,7 @@
 	throwforce = 0
 	w_class = WEIGHT_CLASS_NORMAL
 	slowdown = 7
+	allow_breakout_movement = TRUE
 	breakouttime = 300	//Deciseconds = 30s = 0.5 minute

 /obj/item/restraints/legcuffs/proc/on_removed()
@@ -312,7 +315,7 @@
 	trap_damage = 0
 	item_flags = DROPDEL
 	flags_1 = NONE
-	breakouttime = 25
+	breakouttime = 50

 /obj/item/restraints/legcuffs/beartrap/energy/New()
 	..()
@@ -328,7 +331,7 @@
 	. = ..()

 /obj/item/restraints/legcuffs/beartrap/energy/cyborg
-	breakouttime = 20 // Cyborgs shouldn't have a strong restraint
+	breakouttime = 40 // Cyborgs shouldn't have a strong restraint

 /obj/item/restraints/legcuffs/bola
 	name = "bola"
@@ -379,7 +382,7 @@
 	icon_state = "ebola"
 	hitsound = 'sound/weapons/taserhit.ogg'
 	w_class = WEIGHT_CLASS_SMALL
-	breakouttime = 25
+	breakouttime = 50

 /obj/item/restraints/legcuffs/bola/energy/on_removed()
 	do_sparks(1, TRUE, src)
@@ -337,7 +337,7 @@
 	page_link = "Guide_to_chemistry"

 /obj/item/book/manual/wiki/chemistry/Initialize()
-	..()
+	. = ..()
 	new /obj/item/book/manual/wiki/cit/chemistry(loc)
 	new /obj/item/book/manual/wiki/cit/chem_recipies(loc)

@@ -121,11 +121,14 @@
 	parry_time_perfect = 2.5		// first ds isn't perfect
 	parry_time_perfect_leeway = 1.5
 	parry_imperfect_falloff_percent = 5
-	parry_efficiency_to_counterattack = 100
+	parry_efficiency_to_counterattack = INFINITY
 	parry_efficiency_considered_successful = 65		// VERY generous
 	parry_efficiency_perfect = 100
 	parry_failed_stagger_duration = 4 SECONDS
 	parry_cooldown = 0.5 SECONDS
+	parry_automatic_enabled = TRUE
+	autoparry_single_efficiency = 65
+	autoparry_cooldown_absolute = 3 SECONDS

 /obj/item/melee/transforming/energy/sword/Initialize(mapload)
 	. = ..()
@@ -149,8 +152,8 @@

 /obj/item/melee/transforming/energy/sword/on_active_parry(mob/living/owner, atom/object, damage, attack_text, attack_type, armour_penetration, mob/attacker, def_zone, list/block_return, parry_efficiency, parry_time)
 	. = ..()
-	if(parry_efficiency >= 80)		// perfect parry
-		block_return[BLOCK_RETURN_REDIRECT_METHOD] = REDIRECT_METHOD_RETURN_TO_SENDER
+	if(parry_efficiency >= 100)		// perfect parry
+		block_return[BLOCK_RETURN_REDIRECT_METHOD] = REDIRECT_METHOD_DEFLECT
 		. |= BLOCK_SHOULD_REDIRECT

 /obj/item/melee/transforming/energy/sword/cyborg
@@ -72,15 +72,17 @@
 	block_parry_data = /datum/block_parry_data/captain_saber

 /datum/block_parry_data/captain_saber
-	parry_time_windup = 0.5
-	parry_time_active = 4
-	parry_time_spindown = 1
+	parry_time_windup = 0
+	parry_time_active = 10
+	parry_time_spindown = 0
 	parry_time_perfect = 0.75
-	parry_time_perfect_leeway = 0.75
+	parry_time_perfect_leeway = 1.5
 	parry_imperfect_falloff_percent = 30
 	parry_efficiency_perfect = 100
 	parry_failed_stagger_duration = 3 SECONDS
-	parry_failed_clickcd_duration = 2 SECONDS
+	parry_failed_clickcd_duration = 0
+	parry_flags = PARRY_DEFAULT_HANDLE_FEEDBACK
+	parry_automatic_enabled = TRUE

 /obj/item/melee/sabre/Initialize()
 	. = ..()
@@ -176,30 +178,28 @@

 // Fast, efficient parry.
 /datum/block_parry_data/traitor_rapier
-	parry_time_windup = 0.5
-	parry_time_active = 5
+	parry_time_windup = 0
+	parry_time_active = 10
 	parry_time_spindown = 0
 	parry_time_active_visual_override = 3
 	parry_time_spindown_visual_override = 2
 	parry_flags = PARRY_DEFAULT_HANDLE_FEEDBACK | PARRY_LOCK_ATTACKING
-	parry_time_perfect = 0
-	parry_time_perfect_leeway = 3
+	parry_time_perfect = 2
+	parry_time_perfect_leeway = 2
 	parry_time_perfect_leeway_override = list(
 		TEXT_ATTACK_TYPE_PROJECTILE = 1
 	)
-	parry_imperfect_falloff_percent_override = list(
-		TEXT_ATTACK_TYPE_PROJECTILE = 50				// useless after 3rd decisecond
-	)
 	parry_imperfect_falloff_percent = 30
 	parry_efficiency_to_counterattack = 100
 	parry_efficiency_considered_successful = 1
-	parry_efficiency_perfect = 100
 	parry_data = list(
-		PARRY_DISARM_ATTACKER = TRUE,
-		PARRY_KNOCKDOWN_ATTACKER = 10
+		PARRY_KNOCKDOWN_ATTACKER = 10,
+		PARRY_DISARM_ATTACKER = TRUE
 	)
+	parry_efficiency_perfect = 100
+	parry_stamina_cost = 5
 	parry_failed_stagger_duration = 2 SECONDS
-	parry_failed_clickcd_duration = CLICK_CD_RANGE
+	parry_automatic_enabled = TRUE
 	parry_cooldown = 0

 /obj/item/melee/rapier/active_parry_reflex_counter(mob/living/owner, atom/object, damage, attack_text, attack_type, armour_penetration, mob/attacker, def_zone, list/return_list, parry_efficiency, list/effect_text)
@@ -259,6 +259,8 @@
 	var/stam_dmg = 30
 	var/cooldown_check = 0 // Used internally, you don't want to modify
 	var/cooldown = 13 // Default wait time until can stun again.
+	/// block mitigation needed to prevent knockdown/disarms
+	var/block_percent_to_counter = 50
 	var/stun_time_silicon = 60 // How long it stuns silicons for - 6 seconds.
 	var/affect_silicon = FALSE // Does it stun silicons.
 	var/on_sound // "On" sound, played when switching between able to stun or not.
@@ -356,7 +358,8 @@
 		if(cooldown_check < world.time)
 			if(!UseStaminaBufferStandard(user, STAM_COST_BATON_MOB_MULT, warn = TRUE))
 				return DISCARD_LAST_ACTION
-			if(target.mob_run_block(src, 0, "[user]'s [name]", ATTACK_TYPE_MELEE, 0, user, null, null) & BLOCK_SUCCESS)
+			var/list/block_return = list()
+			if(target.mob_run_block(src, 0, "[user]'s [name]", ATTACK_TYPE_MELEE, 0, user, null, block_return) & BLOCK_SUCCESS)
 				playsound(target, 'sound/weapons/genhit.ogg', 50, 1)
 				return
 			if(ishuman(target))
@@ -367,7 +370,8 @@
 			if(stun_animation)
 				user.do_attack_animation(target)
 			playsound(get_turf(src), on_stun_sound, 75, 1, -1)
-			target.DefaultCombatKnockdown(softstun_ds, TRUE, FALSE, hardstun_ds, stam_dmg)
+			var/countered = block_return[BLOCK_RETURN_MITIGATION_PERCENT] > block_percent_to_counter
+			target.DefaultCombatKnockdown(softstun_ds, TRUE, FALSE, countered? 0 : hardstun_ds, stam_dmg, !countered)
 			additional_effects_carbon(target, user)
 			log_combat(user, target, "stunned", src)
 			add_fingerprint(user)
@@ -453,6 +457,18 @@
 	playsound(src.loc, on_sound, 50, 1)
 	add_fingerprint(user)

+/obj/item/melee/classic_baton/telescopic/newspaper
+	name = "The Daily Whiplash"
+	desc = "A newspaper wrapped around a telescopic baton in such a way that it looks like you're beating people with a rolled up newspaper."
+	icon = 'icons/obj/bureaucracy.dmi'
+	icon_state = "newspaper"
+	lefthand_file = 'icons/mob/inhands/misc/books_lefthand.dmi'
+	righthand_file = 'icons/mob/inhands/misc/books_righthand.dmi'
+	on_sound = 'sound/weapons/batonextend.ogg'
+	on_icon_state = "newspaper2"
+	off_icon_state = "newspaper"
+	on_item_state = "newspaper"
+
 /obj/item/melee/classic_baton/telescopic/contractor_baton
 	name = "contractor baton"
 	desc = "A compact, specialised baton assigned to Syndicate contractors. Applies light electrical shocks to targets."
@@ -695,11 +711,14 @@
 			playsound(src, 'sound/weapons/batonextend.ogg', 50, 1)

 /obj/item/melee/roastingstick/proc/finish_roasting(user, atom/target)
+	if(!held_sausage || held_sausage.roasted)
+		return	// no
 	to_chat(user, "You finish roasting [held_sausage]")
 	playsound(src,'sound/items/welder2.ogg',50,1)
 	held_sausage.add_atom_colour(rgb(103,63,24), FIXED_COLOUR_PRIORITY)
 	held_sausage.name = "[target.name]-roasted [held_sausage.name]"
 	held_sausage.desc = "[held_sausage.desc] It has been cooked to perfection on \a [target]."
+	held_sausage.roasted = TRUE
 	update_icon()

 /obj/item/melee/cleric_mace
@@ -307,7 +307,7 @@

 	if(isanimal(occupant))
 		var/mob/living/simple_animal/animal = occupant
-		occupant_gas_supply[/datum/gas/oxygen] = 0.0064 //make sure it has some gas in so it isn't depressurized
+		occupant_gas_supply[GAS_O2] = 0.0064 //make sure it has some gas in so it isn't depressurized
 		occupant_gas_supply.set_temperature(animal.minbodytemp) //simple animals only care about temperature/pressure when their turf isnt a location

 	if(ishuman(occupant)) //humans require resistance to cold/heat and living in no air while inside, and lose this when outside
@@ -446,7 +446,7 @@
 			mood_message = null
 	cheer_up()

-/obj/item/toy/plush/proc/update_desc()
+/obj/item/toy/plush/update_desc()
 	desc = normal_desc
 	if(mood_message)
 		desc += mood_message
@@ -466,7 +466,7 @@ GLOBAL_LIST_INIT(valid_plushie_paths, valid_plushie_paths())
 	can_random_spawn = FALSE

 /obj/item/toy/plush/random/Initialize()
-	SHOULD_CALL_PARENT(FALSE)
+	..()
 	var/newtype
 	var/list/snowflake_list = CONFIG_GET(keyed_list/snowflake_plushies)

@@ -612,6 +612,12 @@ GLOBAL_LIST_INIT(valid_plushie_paths, valid_plushie_paths())
 	icon_state = "kobold"
 	item_state = "kobold"

+/obj/item/toy/plush/lizardplushie/kobold
+	name = "spacelizard plushie"
+	desc = "An adorable stuffed toy that resembles a lizard in a suit."
+	icon_state = "plushie_spacelizard"
+	item_state = "plushie_spacelizard"
+
 /obj/item/toy/plush/nukeplushie
 	name = "operative plushie"
 	desc = "A stuffed toy that resembles a syndicate nuclear operative. The tag claims operatives to be purely fictitious."
@@ -643,17 +649,17 @@ GLOBAL_LIST_INIT(valid_plushie_paths, valid_plushie_paths())
 /obj/item/toy/plush/beeplushie
 	name = "bee plushie"
 	desc = "A cute toy that resembles an even cuter bee."
-	icon_state = "plushie_h"
-	item_state = "plushie_h"
+	icon_state = "plushie_bee"
+	item_state = "plushie_bee"
 	attack_verb = list("stung")
 	gender = FEMALE
 	squeak_override = list('modular_citadel/sound/voice/scream_moth.ogg' = 1)

 /obj/item/toy/plush/mothplushie
-	name = "insect plushie"
+	name = "moth plushie"
 	desc = "An adorable stuffed toy that resembles some kind of insect."
-	icon_state = "bumble"
-	item_state = "bumble"
+	icon_state = "moff"
+	item_state = "moff"
 	squeak_override = list('modular_citadel/sound/voice/mothsqueak.ogg' = 1)
 	can_random_spawn = FALSE

@@ -665,6 +671,20 @@ GLOBAL_LIST_INIT(valid_plushie_paths, valid_plushie_paths())
 	attack_verb = list("lit", "flickered", "flashed")
 	squeak_override = list('sound/weapons/magout.ogg' = 1)

+/obj/item/toy/plush/drake
+	name = "drake plushie"
+	desc = "A large beast from lavaland turned into a marketable plushie!"
+	icon_state = "drake"
+	item_state = "drake"
+	attack_verb = list("bit", "devoured", "burned")
+
+/obj/item/toy/plush/deer
+	name = "deer plushie"
+	desc = "Oh deer, a plushie!"
+	icon_state = "deer"
+	item_state = "deer"
+	attack_verb = list("bleated", "rammed", "kicked")
+
 /obj/item/toy/plush/box
 	name = "cardboard plushie"
 	desc = "A toy box plushie, it holds cotten. Only a baddie would place a bomb through the postal system..."
@@ -694,7 +714,7 @@ GLOBAL_LIST_INIT(valid_plushie_paths, valid_plushie_paths())
 	attack_verb = list("scanned", "beeped", "stared")

 /obj/item/toy/plush/borgplushie
-	name = "robot plushie"
+	name = "K9 plushie"
 	desc = "An adorable stuffed toy of a robot."
 	icon_state = "securityk9"
 	item_state = "securityk9"
@@ -702,25 +722,28 @@ GLOBAL_LIST_INIT(valid_plushie_paths, valid_plushie_paths())
 	squeak_override = list('sound/machines/beep.ogg' = 1)

 /obj/item/toy/plush/borgplushie/medihound
+	name = "medihound plushie"
 	icon_state = "medihound"
 	item_state = "medihound"

 /obj/item/toy/plush/borgplushie/scrubpuppy
+	name = "scrubpuppy plushie"
 	icon_state = "scrubpuppy"
 	item_state = "scrubpuppy"

+/obj/item/toy/plush/borgplushie/pupdozer
+	name = "pupdozer plushie"
+	icon_state = "pupdozer"
+	item_state = "pupdozer"
+
 /obj/item/toy/plush/aiplush
 	name = "AI plushie"
 	desc = "A little stuffed toy AI core... it appears to be malfunctioning."
-	icon_state = "exo"
-	item_state = "exo"
+	icon_state = "malfai"
+	item_state = "malfai"
 	attack_verb = list("hacked", "detonated", "overloaded")
 	squeak_override = list('sound/machines/beep.ogg' = 9, 'sound/machines/buzz-two.ogg' = 1)

-/obj/item/toy/plush/mammal/fox
-	icon_state = "fox"
-	item_state = "fox"
-
 /obj/item/toy/plush/snakeplushie
 	name = "snake plushie"
 	desc = "An adorable stuffed toy that resembles a snake. Not to be mistaken for the real thing."
@@ -732,6 +755,72 @@ GLOBAL_LIST_INIT(valid_plushie_paths, valid_plushie_paths())
 /obj/item/toy/plush/mammal
 	name = "mammal plushie"
 	desc = "An adorable stuffed toy resembling some sort of crew member."
+	icon_state = "ych"
+	item_state = "ych"
+	can_random_spawn = FALSE
+
+/obj/item/toy/plush/mammal/fox
+	name = "fox plushie"
+	desc = "An adorable stuffed toy resembling a fox."
+	icon_state = "fox"
+	item_state = "fox"
+	attack_verb = list("yipped", "geckered", "yapped")
+
+/obj/item/toy/plush/mammal/dog
+	name = "dog plushie"
+	icon_state = "corgi"
+	item_state = "corgi"
+	desc = "An adorable stuffed toy that resembles a dog."
+	attack_verb = list("barked", "boofed", "borked")
+	squeak_override = list(
+	'modular_citadel/sound/voice/bark1.ogg' = 1,
+	'modular_citadel/sound/voice/bark2.ogg' = 1
+	)
+
+/obj/item/toy/plush/mammal/dog/fcorgi
+	name = "corgi plushie"
+	icon_state = "girlycorgi"
+	item_state = "girlycorgi"
+	desc = "An adorable stuffed toy that resembles a dog. This one dons a pink ribbon."
+
+/obj/item/toy/plush/mammal/dog/borgi
+	name = "borgi plushie"
+	icon_state = "borgi"
+	item_state = "borgi"
+	desc = "An adorable stuffed toy that resembles a robot dog."
+
+/obj/item/toy/plush/xeno
+	name = "xenohybrid plushie"
+	desc = "An adorable stuffed toy that resembles a xenomorphic crewmember."
+	icon_state = "xeno"
+	item_state = "xeno"
+	squeak_override = list('sound/voice/hiss2.ogg' = 1)
+	can_random_spawn = FALSE
+
+/obj/item/toy/plush/bird
+	name = "bird plushie"
+	desc = "An adorable stuffed plushie that resembles an avian."
+	icon_state = "bird"
+	item_state = "bird"
+	attack_verb = list("peeped", "beeped", "poofed")
+	squeak_override = list('modular_citadel/sound/voice/peep.ogg' = 1)
+	can_random_spawn = FALSE
+
+/obj/item/toy/plush/sergal
+	name = "sergal plushie"
+	desc = "An adorable stuffed plushie that resembles a sagaru."
+	icon_state = "sergal"
+	item_state = "sergal"
+	squeak_override = list('modular_citadel/sound/voice/merp.ogg' = 1)
+	can_random_spawn = FALSE
+
+/obj/item/toy/plush/catgirl
+	name = "feline plushie"
+	desc = "An adorable stuffed toy that resembles a feline."
+	icon_state = "cat"
+	item_state = "cat"
+	attack_verb = list("headbutt", "scritched", "bit")
+	squeak_override = list('modular_citadel/sound/voice/nya.ogg' = 1)
 	can_random_spawn = FALSE

 /obj/item/toy/plush/catgirl/fermis
@@ -742,40 +831,25 @@ GLOBAL_LIST_INIT(valid_plushie_paths, valid_plushie_paths())
 	attack_verb = list("cuddled", "petpatted", "wigglepurred")
 	squeak_override = list('modular_citadel/sound/voice/merowr.ogg' = 1)

-/obj/item/toy/plush/xeno
-	name = "xenohybrid plushie"
-	desc = "An adorable stuffed toy that resmembles a xenomorphic crewmember."
-	squeak_override = list('sound/voice/hiss2.ogg' = 1)
-	can_random_spawn = FALSE
+/obj/item/toy/plush/teddybear
+	name = "teddy"
+	desc = "It's a teddy bear!"
+	icon_state = "teddy"
+	item_state = "teddy"

-/obj/item/toy/plush/bird
-	name = "bird plushie"
-	desc = "An adorable stuffed plushie that resembles an avian."
-	attack_verb = list("peeped", "beeped", "poofed")
-	squeak_override = list('modular_citadel/sound/voice/peep.ogg' = 1)
-	can_random_spawn = FALSE
-
-/obj/item/toy/plush/sergal
-	name = "sergal plushie"
-	desc = "An adorable stuffed plushie that resembles a sagaru."
-	squeak_override = list('modular_citadel/sound/voice/merp.ogg' = 1)
-	can_random_spawn = FALSE
-
-/obj/item/toy/plush/mammal/dog
-	desc = "An adorable stuffed toy that resembles a canine."
-	attack_verb = list("barked", "boofed", "borked")
-	squeak_override = list(
-	'modular_citadel/sound/voice/bark1.ogg' = 1,
-	'modular_citadel/sound/voice/bark2.ogg' = 1
-	)
-
-/obj/item/toy/plush/catgirl
-	name = "feline plushie"
-	desc = "An adorable stuffed toy that resembles a feline."
-	attack_verb = list("headbutt", "scritched", "bit")
-	squeak_override = list('modular_citadel/sound/voice/nya.ogg' = 1)
-	can_random_spawn = FALSE
+/obj/item/toy/plush/crab
+	name = "crab plushie"
+	desc = "Fewer pinches than a real one, but it still clicks."
+	icon_state = "crab"
+	item_state = "crab"
+	attack_verb = list("clicked", "clacked", "pinched")

+/obj/item/toy/plush/gondola
+	name = "gondola plushie"
+	desc = "Just looking at it seems to calm you down. Please do not eat it though."
+	icon_state = "gondola"
+	item_state = "gondola"
+	attack_verb = list("calmed", "smiled", "peaced")

 /obj/item/toy/plush/hairball
 	name = "Hairball"
@@ -266,6 +266,7 @@
 	. += tank.icon_state

 /obj/item/pneumatic_cannon/proc/fill_with_type(type, amount)
+	set waitfor = FALSE
 	if(!ispath(type, /obj) && !ispath(type, /mob))
 		return FALSE
 	var/loaded = 0
@@ -79,27 +79,27 @@
 	var/weight = getweight(user, STAM_COST_ATTACK_MOB_MULT)
 	if(!user.UseStaminaBuffer(weight, warn = TRUE))
 		return FALSE
-	var/datum/gas_mixture/gasused = tank.air_contents.remove(gasperfist * fisto_setting)
 	var/turf/T = get_turf(src)
 	if(!T)
 		return FALSE
 	var/totalitemdamage = target.pre_attacked_by(src, user)
-	T.assume_air(gasused)
-	T.air_update_turf()
-	if(!gasused)
+	var/moles_used = gasperfist * fisto_setting
+	if(!moles_used)
 		to_chat(user, "<span class='warning'>\The [src]'s tank is empty!</span>")
 		target.apply_damage((totalitemdamage / 5), BRUTE)
 		playsound(loc, 'sound/weapons/punch1.ogg', 50, 1)
 		target.visible_message("<span class='danger'>[user]'s powerfist lets out a dull thunk as [user.p_they()] punch[user.p_es()] [target.name]!</span>", \
 		"<span class='userdanger'>[user]'s punches you!</span>")
 		return
-	if(gasused.total_moles() < gasperfist * fisto_setting)
+	if(tank.air_contents.total_moles() < moles_used)
 		to_chat(user, "<span class='warning'>\The [src]'s piston-ram lets out a weak hiss, it needs more gas!</span>")
 		playsound(loc, 'sound/weapons/punch4.ogg', 50, 1)
 		target.apply_damage((totalitemdamage / 2), BRUTE)
 		target.visible_message("<span class='danger'>[user]'s powerfist lets out a weak hiss as [user.p_they()] punch[user.p_es()] [target.name]!</span>", \
 			"<span class='userdanger'>[user]'s punch strikes with force!</span>")
 		return
+	T.assume_air_moles(tank.air_contents, gasperfist * fisto_setting)
+	T.air_update_turf()
 	target.apply_damage(totalitemdamage * fisto_setting, BRUTE, wound_bonus = -25*fisto_setting**2)
 	target.visible_message("<span class='danger'>[user]'s powerfist lets out a loud hiss as [user.p_they()] punch[user.p_es()] [target.name]!</span>", \
 		"<span class='userdanger'>You cry out in pain as [user]'s punch flings you backwards!</span>")
@@ -90,7 +90,7 @@ as performing this in action() will cause the upgrade to end up in the borg inst
 			to_chat(user, "<span class='notice'>There's no room for another VTEC unit!</span>")
 			return FALSE

-		//R.speed = -2 // Gotta go fast.
+		//R.vtec = -2 // Gotta go fast.
        //Citadel change - makes vtecs give an ability rather than reducing the borg's speed instantly
 		VC = new /obj/effect/proc_holder/silicon/cyborg/vtecControl
 		R.AddAbility(VC)
@@ -100,7 +100,7 @@ as performing this in action() will cause the upgrade to end up in the borg inst
 	. = ..()
 	if (.)
 		R.RemoveAbility(VC)
-		R.speed = initial(R.speed)
+		R.vtec = initial(R.vtec)
 		R.cansprint = 1

 /obj/item/borg/upgrade/disablercooler
@@ -681,7 +681,7 @@ as performing this in action() will cause the upgrade to end up in the borg inst
 	action_icon_state = "Chevron_State_0"

 	var/currentState = 0
-	var/maxReduction = 1
+	var/maxReduction = 0.5


 /obj/effect/proc_holder/silicon/cyborg/vtecControl/Trigger(mob/living/silicon/robot/user)
@@ -690,11 +690,11 @@ as performing this in action() will cause the upgrade to end up in the borg inst
 	if(istype(user))
 		switch(currentState)
 			if (0)
-				user.speed = initial(user.speed)
+				user.vtec = initial(user.vtec)
 			if (1)
-				user.speed = initial(user.speed) - maxReduction * 0.5
+				user.vtec = initial(user.vtec) - maxReduction * 0.5
 			if (2)
-				user.speed = initial(user.speed) - maxReduction * 1
+				user.vtec = initial(user.vtec) - maxReduction * 1

 	action.button_icon_state = "Chevron_State_[currentState]"
 	action.UpdateButtonIcon()
@@ -34,6 +34,10 @@
 	block_damage_absorption = 5
 	block_resting_stamina_penalty_multiplier = 2
 	block_projectile_mitigation = 75
+	block_damage_absorption_override = list(
+		TEXT_ATTACK_TYPE_TACKLE = INFINITY,
+		TEXT_ATTACK_TYPE_THROWN = 10
+	)

 /obj/item/shield/examine(mob/user)
 	. = ..()
@@ -120,8 +124,6 @@
 	return TRUE

 /obj/item/shield/proc/user_shieldbash(mob/living/user, atom/target, harmful)
-	if(!SEND_SIGNAL(user, COMSIG_COMBAT_MODE_CHECK, COMBAT_MODE_ACTIVE)) //Combat mode has to be enabled for shield bashing
-		return FALSE
 	if(!(shield_flags & SHIELD_CAN_BASH))
 		to_chat(user, "<span class='warning'>[src] can't be used to shield bash!</span>")
 		return FALSE
@@ -376,11 +378,10 @@

 /obj/item/shield/riot/flash/on_shield_block(mob/living/owner, atom/object, damage, attack_text, attack_type, armour_penetration, mob/attacker, def_zone, final_block_chance, list/block_return)
 	. = ..()
-	if (. && !embedded_flash.crit_fail)
+	if (. && damage && !embedded_flash.crit_fail)
 		embedded_flash.activate()
 		update_icon()

-
 /obj/item/shield/riot/flash/attackby(obj/item/W, mob/user)
 	if(istype(W, /obj/item/assembly/flash/handheld))
 		var/obj/item/assembly/flash/handheld/flash = W
@@ -547,7 +548,7 @@
 	force = 3
 	throwforce = 3
 	throw_speed = 3
-	var/base_icon_state = "eshield" // [base_icon_state]1 for expanded, [base_icon_state]0 for contracted
+	base_icon_state = "eshield" // [base_icon_state]1 for expanded, [base_icon_state]0 for contracted
 	var/on_force = 10
 	var/on_throwforce = 8
 	var/on_throw_speed = 2
@@ -564,7 +565,7 @@
 		return BLOCK_SUCCESS | BLOCK_REDIRECTED | BLOCK_SHOULD_REDIRECT
 	return ..()

-/obj/item/shield/energy/active_block(mob/living/owner, atom/object, damage, attack_text, attack_type, armour_penetration, mob/attacker, def_zone, final_block_chance, list/block_return, override_direction)
+/obj/item/shield/energy/directional_block(mob/living/owner, atom/object, damage, attack_text, attack_type, armour_penetration, mob/attacker, def_zone, final_block_chance, list/block_return, override_direction)
 	if((attack_type & ATTACK_TYPE_PROJECTILE) && is_energy_reflectable_projectile(object))
 		block_return[BLOCK_RETURN_REDIRECT_METHOD] = REDIRECT_METHOD_DEFLECT
 		return BLOCK_SUCCESS | BLOCK_REDIRECTED | BLOCK_SHOULD_REDIRECT
@@ -18,7 +18,7 @@
 	. = ..()
 	update_desc()

-/obj/item/stack/spacecash/proc/update_desc()
+/obj/item/stack/spacecash/update_desc()
 	var/total_worth = get_item_credit_value()
 	desc = "It's worth [total_worth] credit[( total_worth > 1 ) ? "s" : ""]"

@@ -13,6 +13,7 @@

 GLOBAL_LIST_INIT(human_recipes, list( \
 	new/datum/stack_recipe("bloated human costume", /obj/item/clothing/suit/hooded/bloated_human, 5), \
+	new/datum/stack_recipe("human skin hat", /obj/item/clothing/head/human_leather, 1), \
 	))

 /obj/item/stack/sheet/animalhide/human/get_main_recipes()
@@ -179,6 +179,7 @@ GLOBAL_LIST_INIT(metal_recipes, list ( \
 GLOBAL_LIST_INIT(plasteel_recipes, list ( \
 	new/datum/stack_recipe("AI core", /obj/structure/AIcore, 4, time = 50, one_per_turf = TRUE), \
 	new/datum/stack_recipe("bomb assembly", /obj/machinery/syndicatebomb/empty, 10, time = 50), \
+	new/datum/stack_recipe("plasteel keg", /obj/structure/custom_keg, 10, time = 50), \
 	new/datum/stack_recipe("micro powered fan assembly", /obj/machinery/fan_assembly, 5, time = 50, one_per_turf = TRUE, on_floor = TRUE), \
 	new /datum/stack_recipe_list("crates", list( \
 		new /datum/stack_recipe("gray crate", /obj/structure/closet/crate, 5, time = 50, one_per_turf = 1, on_floor = 1), \
@@ -48,7 +48,7 @@
 		amount -= max_amount
 		new type(loc, max_amount, FALSE)
 	if(!merge_type)
-		merge_type = type
+		merge_type = src.type

 	if(LAZYLEN(mats_per_unit))
 		set_mats_per_unit(mats_per_unit, 1)
@@ -16,14 +16,16 @@
 	armor = list("melee" = 0, "bullet" = 0, "laser" = 0, "energy" = 0, "bomb" = 50, "bio" = 0, "rad" = 0, "fire" = 80, "acid" = 80)
 	attack_speed = CLICK_CD_MELEE

-	var/stamina_loss_amount = 35
+	var/stamina_loss_amount = 40
 	var/turned_on = FALSE
 	var/knockdown = TRUE
+	/// block percent needed to prevent knockdown/disarm
+	var/block_percent_to_counter = 50
 	var/obj/item/stock_parts/cell/cell
 	var/hitcost = 750
 	var/throw_hit_chance = 35
 	var/preload_cell_type //if not empty the baton starts with this type of cell
-	var/cooldown_duration = 5 SECONDS //How long our baton rightclick goes on cooldown for after applying a knockdown
+	var/cooldown_duration = 3.5 SECONDS //How long our baton rightclick goes on cooldown for after applying a knockdown
 	var/status_duration = 5 SECONDS //how long our status effects last for otherwise
 	COOLDOWN_DECLARE(shove_cooldown)

@@ -8,7 +8,7 @@
 	w_class = WEIGHT_CLASS_BULKY
 	distribute_pressure = ONE_ATMOSPHERE * O2STANDARD
 	actions_types = list(/datum/action/item_action/set_internals, /datum/action/item_action/toggle_jetpack, /datum/action/item_action/jetpack_stabilization)
-	var/gas_type = /datum/gas/oxygen
+	var/gas_type = GAS_O2
 	var/on = FALSE
 	var/stabilizers = FALSE
 	var/full_speed = TRUE // If the jetpack will have a speedboost in space/nograv or not
@@ -77,13 +77,7 @@
 		turn_off(user)
 		return

-	var/datum/gas_mixture/removed = air_contents.remove(num)
-	if(removed.total_moles() < 0.005)
-		turn_off(user)
-		return
-
-	var/turf/T = get_turf(user)
-	T.assume_air(removed)
+	assume_air_moles(air_contents, num)

 	return TRUE

@@ -116,13 +110,7 @@
 		turn_off(user)
 		return

-	var/datum/gas_mixture/removed = air_contents.remove(num)
-	if(removed.total_moles() < 0.005)
-		turn_off(user)
-		return
-
-	var/turf/T = get_turf(user)
-	T.assume_air(removed)
+	assume_air_moles(air_contents, num)

 	return TRUE

@@ -171,7 +159,7 @@
 	icon_state = "jetpack-black"
 	item_state =  "jetpack-black"
 	distribute_pressure = 0
-	gas_type = /datum/gas/carbon_dioxide
+	gas_type = GAS_CO2

 /obj/item/tank/jetpack/carbondioxide/eva
 	name = "surplus jetpack (carbon dioxide)"
@@ -20,7 +20,7 @@


 /obj/item/tank/internals/oxygen/populate_gas()
-	air_contents.set_moles(/datum/gas/oxygen, (6*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C))
+	air_contents.set_moles(GAS_O2, (6*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C))
 	return


@@ -48,8 +48,8 @@
 	force = 10

 /obj/item/tank/internals/anesthetic/populate_gas()
-	air_contents.set_moles(/datum/gas/oxygen, (3*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C) * O2STANDARD)
-	air_contents.set_moles(/datum/gas/nitrous_oxide, (3*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C) * N2STANDARD)
+	air_contents.set_moles(GAS_O2, (3*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C) * O2STANDARD)
+	air_contents.set_moles(GAS_NITROUS, (3*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C) * N2STANDARD)
 	return

 /*
@@ -63,8 +63,8 @@
 	dog_fashion = /datum/dog_fashion/back

 /obj/item/tank/internals/air/populate_gas()
-	air_contents.set_moles(/datum/gas/oxygen, (6*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C) * O2STANDARD)
-	air_contents.set_moles(/datum/gas/nitrogen, (6*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C) * N2STANDARD)
+	air_contents.set_moles(GAS_O2, (6*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C) * O2STANDARD)
+	air_contents.set_moles(GAS_N2, (6*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C) * N2STANDARD)
 	return


@@ -81,7 +81,7 @@


 /obj/item/tank/internals/plasma/populate_gas()
-	air_contents.set_moles(/datum/gas/plasma, (3*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C))
+	air_contents.set_moles(GAS_PLASMA, (3*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C))
 	return

 /obj/item/tank/internals/plasma/attackby(obj/item/W, mob/user, params)
@@ -98,14 +98,14 @@
 		return ..()

 /obj/item/tank/internals/plasma/full/populate_gas()
-	air_contents.set_moles(/datum/gas/plasma, (10*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C))
+	air_contents.set_moles(GAS_PLASMA, (10*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C))

 //Makes empty oxygen tanks spawn without gas
 /obj/item/tank/internals/plasma/empty/populate_gas()
 	return

 /obj/item/tank/internals/plasma/full/populate_gas()
-	air_contents.set_moles(/datum/gas/plasma, (10*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C))
+	air_contents.set_moles(GAS_PLASMA, (10*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C))

 /*
 * Plasmaman Plasma Tank
@@ -120,11 +120,11 @@
 	distribute_pressure = TANK_DEFAULT_RELEASE_PRESSURE

 /obj/item/tank/internals/plasmaman/populate_gas()
-	air_contents.set_moles(/datum/gas/plasma, (3*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C))
+	air_contents.set_moles(GAS_PLASMA, (3*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C))
 	return

 /obj/item/tank/internals/plasmaman/full/populate_gas()
-	air_contents.set_moles(/datum/gas/plasma, (10*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C))
+	air_contents.set_moles(GAS_PLASMA, (10*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C))
 	return


@@ -137,7 +137,7 @@
 	w_class = WEIGHT_CLASS_SMALL //thanks i forgot this

 /obj/item/tank/internals/plasmaman/belt/full/populate_gas()
-	air_contents.set_moles(/datum/gas/plasma, (10*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C))
+	air_contents.set_moles(GAS_PLASMA, (10*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C))
 	return

 //makes empty plasma tanks spawn without gas.
@@ -160,7 +160,7 @@


 /obj/item/tank/internals/emergency_oxygen/populate_gas()
-	air_contents.set_moles(/datum/gas/oxygen, (3*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C))
+	air_contents.set_moles(GAS_O2, (3*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C))
 	return

 /obj/item/tank/internals/emergency_oxygen/empty/populate_gas()
@@ -196,5 +196,5 @@
 	volume = 10

 /obj/item/tank/internals/methyl_bromide/populate_gas()
-	air_contents.set_moles(/datum/gas/methyl_bromide, (6*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C))
+	air_contents.set_moles(GAS_METHYL_BROMIDE, (6*ONE_ATMOSPHERE)*volume/(R_IDEAL_GAS_EQUATION*T20C))
 	return
@@ -83,7 +83,6 @@
 		if(istype(location))
 			location.assume_air(air_contents)
 			air_contents.clear()
-			SSair.add_to_active(location)
 			visible_message("<span class='warning'[src] leaks gas!")

 /obj/item/tank/Destroy()
@@ -235,6 +234,9 @@
 /obj/item/tank/remove_air(amount)
 	return air_contents.remove(amount)

+/obj/item/tank/remove_air_ratio(ratio)
+	return air_contents.remove_ratio(ratio)
+
 /obj/item/tank/return_air()
 	return air_contents

@@ -247,6 +249,18 @@
 	check_status()
 	return 1

+/obj/item/tank/assume_air_moles(datum/gas_mixture/giver, moles)
+	giver.transfer_to(air_contents, moles)
+
+	check_status()
+	return 1
+
+/obj/item/tank/assume_air_ratio(datum/gas_mixture/giver, ratio)
+	giver.transfer_ratio_to(air_contents, ratio)
+
+	check_status()
+	return 1
+
 /obj/item/tank/proc/remove_air_volume(volume_to_return)
 	if(!air_contents)
 		return null
@@ -80,8 +80,8 @@

 /obj/item/watertank/MouseDrop(obj/over_object)
 	var/mob/M = loc
-	if(istype(M) && istype(over_object, /obj/screen/inventory/hand))
-		var/obj/screen/inventory/hand/H = over_object
+	if(istype(M) && istype(over_object, /atom/movable/screen/inventory/hand))
+		var/atom/movable/screen/inventory/hand/H = over_object
 		M.putItemFromInventoryInHandIfPossible(src, H.held_index)
 	return ..()

@@ -67,6 +67,12 @@
 	item_state = "crowbar"
 	toolspeed = 0.5

+/obj/item/crowbar/large/heavy
+	name = "heavy crowbar"
+	desc = "It's a big crowbar. It doesn't fit in your pockets, because it's big. It feels oddly heavy.."
+	force = 20
+	icon_state = "crowbar_powergame"
+
 /obj/item/crowbar/cyborg
 	name = "hydraulic crowbar"
 	desc = "A hydraulic prying tool, compact but powerful. Designed to replace crowbar in construction cyborgs."
@@ -23,13 +23,13 @@
 	armor = list("melee" = 0, "bullet" = 0, "laser" = 0, "energy" = 0, "bomb" = 0, "bio" = 0, "rad" = 0, "fire" = 50, "acid" = 30)
 	var/random_color = TRUE
 	var/static/list/wirecutter_colors = list(
-		"blue" = "#1861d5",
-		"red" = "#951710",
-		"pink" = "#d5188d",
-		"brown" = "#a05212",
-		"green" = "#0e7f1b",
-		"cyan" = "#18a2d5",
-		"yellow" = "#d58c18"
+		"blue" = rgb(24, 97, 213),
+		"red" = rgb(255, 0, 0),
+		"pink" = rgb(213, 24, 141),
+		"brown" = rgb(160, 82, 18),
+		"green" = rgb(14, 127, 27),
+		"cyan" = rgb(24, 162, 213),
+		"yellow" = rgb(255, 165, 0)
 	)


@@ -49,6 +49,23 @@
 	base_overlay.appearance_flags = RESET_COLOR
 	. += base_overlay

+/obj/item/wirecutters/worn_overlays(isinhands = FALSE, icon_file, used_state, style_flags = NONE)
+	. = ..()
+	if(isinhands && random_color)
+		var/mutable_appearance/M = mutable_appearance(icon_file, "cutters_cutty_thingy")
+		M.appearance_flags = RESET_COLOR
+		. += M
+
+/obj/item/wirecutters/get_belt_overlay()
+	if(random_color)
+		var/mutable_appearance/body = mutable_appearance('icons/obj/clothing/belt_overlays.dmi', "cutters")
+		var/mutable_appearance/head = mutable_appearance('icons/obj/clothing/belt_overlays.dmi', "cutters_cutty_thingy")
+		body.color = color
+		head.add_overlay(body)
+		return head
+	else
+		return mutable_appearance('icons/obj/clothing/belt_overlays.dmi', icon_state)
+
 /obj/item/wirecutters/attack(mob/living/carbon/C, mob/user)
 	if(istype(C) && C.handcuffed && istype(C.handcuffed, /obj/item/restraints/handcuffs/cable))
 		user.visible_message("<span class='notice'>[user] cuts [C]'s restraints with [src]!</span>")
@@ -889,8 +889,8 @@
 			M.put_in_hands(src)
 			to_chat(usr, "<span class='notice'>You pick up the deck.</span>")

-		else if(istype(over_object, /obj/screen/inventory/hand))
-			var/obj/screen/inventory/hand/H = over_object
+		else if(istype(over_object, /atom/movable/screen/inventory/hand))
+			var/atom/movable/screen/inventory/hand/H = over_object
 			if(M.putItemFromInventoryInHandIfPossible(src, H.held_index))
 				to_chat(usr, "<span class='notice'>You pick up the deck.</span>")

@@ -7,6 +7,10 @@
 	w_class = WEIGHT_CLASS_TINY
 	resistance_flags = FLAMMABLE

+/obj/item/trash/Initialize()
+	. = ..()
+	AddElement(/datum/element/trash)
+
 /obj/item/trash/raisins
 	name = "\improper 4no raisins"
 	icon_state= "4no_raisins"
@@ -80,6 +84,3 @@
 	name = "boritos bag"
 	icon_state = "boritos"
 	grind_results = list(/datum/reagent/aluminium = 1) //from the mylar bag
-
-/obj/item/trash/attack(mob/M, mob/living/user)
-	return
@@ -332,6 +332,12 @@ for further reading, please see: https://github.com/tgstation/tgstation/pull/301
 	bare_wound_bonus = 0
 	wound_bonus = 0

+/obj/item/melee/bokken/on_active_parry(mob/living/owner, atom/object, damage, attack_text, attack_type, armour_penetration, mob/attacker, def_zone, list/block_return, parry_efficiency, parry_time)
+	. = ..()
+	if(!istype(object, /obj/item/melee/bokken))
+		// no counterattack.
+		block_return[BLOCK_RETURN_FORCE_NO_PARRY_COUNTERATTACK] = TRUE
+
 /datum/block_parry_data/bokken // fucked up parry data, emphasizing quicker, shorter parries
 	parry_stamina_cost = 10 // be wise about when you parry, though, else you won't be able to fight enough to make it count
 	parry_time_windup = 0
@@ -358,7 +364,6 @@ for further reading, please see: https://github.com/tgstation/tgstation/pull/301
 	parry_time_perfect = 2.5 // however...
 	parry_time_perfect_leeway = 2 // the entire time, the parry is perfect
 	parry_failed_stagger_duration = 1 SECONDS
-	parry_failed_clickcd_duration = 1 SECONDS // more forgiving punishments for missed parries
 	// still, don't fucking miss your parries or you're down stamina and staggered to shit

 /datum/block_parry_data/bokken/quick_parry/proj
@@ -475,7 +480,6 @@ for further reading, please see: https://github.com/tgstation/tgstation/pull/301
 	parry_time_perfect = 1
 	parry_time_perfect_leeway = 1
 	parry_failed_stagger_duration = 1 SECONDS
-	parry_failed_clickcd_duration = 1 SECONDS

 /datum/block_parry_data/bokken/waki/quick_parry/proj
 	parry_efficiency_perfect_override = list()
@@ -22,6 +22,8 @@

 //returns the damage value of the attack after processing the obj's various armor protections
 /obj/proc/run_obj_armor(damage_amount, damage_type, damage_flag = 0, attack_dir, armour_penetration = 0)
+	if(damage_flag == MELEE && damage_amount < damage_deflection)
+		return 0
 	switch(damage_type)
 		if(BRUTE)
 		if(BURN)
@@ -204,32 +206,23 @@ GLOBAL_DATUM_INIT(acid_overlay, /mutable_appearance, mutable_appearance('icons/e
 //the obj's reaction when touched by acid
 /obj/acid_act(acidpwr, acid_volume)
 	if(!(resistance_flags & UNACIDABLE) && acid_volume)
-
-		if(!acid_level)
-			SSacid.processing[src] = src
-			update_icon()
-		var/acid_cap = acidpwr * 300 //so we cannot use huge amounts of weak acids to do as well as strong acids.
-		if(acid_level < acid_cap)
-			acid_level = min(acid_level + acidpwr * acid_volume, acid_cap)
+		AddComponent(/datum/component/acid, acidpwr, acid_volume)
 		return 1

-//the proc called by the acid subsystem to process the acid that's on the obj
-/obj/proc/acid_processing()
-	. = 1
-	if(!(resistance_flags & ACID_PROOF))
-		if(prob(33))
-			playsound(loc, 'sound/items/welder.ogg', 150, 1)
-		take_damage(min(1 + round(sqrt(acid_level)*0.3), 300), BURN, "acid", 0)
-
-	acid_level = max(acid_level - (5 + 3*round(sqrt(acid_level))), 0)
-	if(!acid_level)
-		return 0
-
 //called when the obj is destroyed by acid.
 /obj/proc/acid_melt()
-	SSacid.processing -= src
+	var/datum/component/acid/acid = GetComponent(/datum/component/acid)
+	if(acid)
+		acid.RemoveComponent()
 	deconstruct(FALSE)

+/obj/proc/acid_level()
+	var/datum/component/acid/acid = GetComponent(/datum/component/acid)
+	if(acid)
+		return acid.level
+	else
+		return 0
+
 //// FIRE

 /obj/fire_act(exposed_temperature, exposed_volume)
@@ -20,9 +20,10 @@
 	var/max_integrity = 500
 	var/integrity_failure = 0 //0 if we have no special broken behavior, otherwise is a percentage of at what point the obj breaks. 0.5 being 50%

-	var/resistance_flags = NONE // INDESTRUCTIBLE | LAVA_PROOF | FIRE_PROOF | ON_FIRE | UNACIDABLE | ACID_PROOF
+	///Damage under this value will be completely ignored
+	var/damage_deflection = 0

-	var/acid_level = 0 //how much acid is on that obj
+	var/resistance_flags = NONE // INDESTRUCTIBLE | LAVA_PROOF | FIRE_PROOF | ON_FIRE | UNACIDABLE | ACID_PROOF

 	var/persistence_replacement //have something WAY too amazing to live to the next round? Set a new path here. Overuse of this var will make me upset.
 	var/current_skin //the item reskin
@@ -96,12 +97,43 @@
 	else
 		return null

+/obj/assume_air_moles(datum/gas_mixture/giver, moles)
+	if(loc)
+		return loc.assume_air_moles(giver, moles)
+	else
+		return null
+
+/obj/assume_air_ratio(datum/gas_mixture/giver, ratio)
+	if(loc)
+		return loc.assume_air_ratio(giver, ratio)
+	else
+		return null
+
+/obj/transfer_air(datum/gas_mixture/taker, moles)
+	if(loc)
+		return loc.transfer_air(taker, moles)
+	else
+		return null
+
+/obj/transfer_air_ratio(datum/gas_mixture/taker, ratio)
+	if(loc)
+		return loc.transfer_air_ratio(taker, ratio)
+	else
+		return null
+
+
 /obj/remove_air(amount)
 	if(loc)
 		return loc.remove_air(amount)
 	else
 		return null

+/obj/remove_air_ratio(ratio)
+	if(loc)
+		return loc.remove_air_ratio(ratio)
+	else
+		return null
+
 /obj/return_air()
 	if(loc)
 		return loc.return_air()
@@ -116,8 +148,7 @@

 	if(breath_request>0)
 		var/datum/gas_mixture/environment = return_air()
-		var/breath_percentage = BREATH_VOLUME / environment.return_volume()
-		return remove_air(environment.total_moles() * breath_percentage)
+		return remove_air_ratio(BREATH_VOLUME / environment.return_volume())
 	else
 		return null

@@ -339,8 +370,6 @@

 /obj/update_overlays()
 	. = ..()
-	if(acid_level)
-		. += GLOB.acid_overlay
 	if(resistance_flags & ON_FIRE)
 		. += GLOB.fire_overlay

@@ -81,8 +81,8 @@
 	resintype = "wall"
 	canSmoothWith = list(/obj/structure/alien/resin/wall, /obj/structure/alien/resin/membrane)

-/obj/structure/alien/resin/wall/BlockSuperconductivity()
-	return 1
+/obj/structure/alien/resin/wall/BlockThermalConductivity()
+	return TRUE

 /obj/structure/alien/resin/membrane
 	name = "resin membrane"
@@ -348,7 +348,7 @@
 	parry_time_perfect = 1.5
 	parry_time_perfect_leeway = 1
 	parry_imperfect_falloff_percent = 7.5
-	parry_efficiency_to_counterattack = 100
+	parry_efficiency_to_counterattack = INFINITY
 	parry_efficiency_considered_successful = 50
 	parry_efficiency_perfect = 120
 	parry_efficiency_perfect_override = list(
@@ -86,7 +86,7 @@
 		. += "off"
 		. += "sparking"
 	//Overlay is similar enough for both that we can use the same mask for both
-	SSvis_overlays.add_vis_overlay(src, icon, "locked", EMISSIVE_LAYER, EMISSIVE_PLANE, dir, alpha)
+	. += emissive_appearance(icon, "locked", alpha = src.alpha)
 	. += locked ? "locked" : "unlocked"


@@ -356,7 +356,7 @@
 	return

 /obj/structure/closet/MouseDrop_T(atom/movable/O, mob/living/user)
-	if(!istype(O) || O.anchored || istype(O, /obj/screen))
+	if(!istype(O) || O.anchored || istype(O, /atom/movable/screen))
 		return
 	if(!istype(user) || user.incapacitated() || user.lying)
 		return
@@ -531,7 +531,7 @@

 /obj/structure/closet/get_remote_view_fullscreens(mob/user)
 	if(user.stat == DEAD || !(user.sight & (SEEOBJS|SEEMOBS)))
-		user.overlay_fullscreen("remote_view", /obj/screen/fullscreen/impaired, 1)
+		user.overlay_fullscreen("remote_view", /atom/movable/screen/fullscreen/impaired, 1)

 /obj/structure/closet/emp_act(severity)
 	. = ..()
@@ -269,7 +269,7 @@
 		. += get_airlock_overlay("glass_construction", overlays_file)
 	. += get_airlock_overlay("panel_c[state+1]", overlays_file)

-/obj/structure/door_assembly/proc/update_name()
+/obj/structure/door_assembly/update_name()
 	name = ""
 	switch(state)
 		if(AIRLOCK_ASSEMBLY_NEEDS_WIRES)
@@ -95,7 +95,7 @@
 	alpha = 150
 	resistance_flags = FIRE_PROOF

-/obj/structure/holosign/barrier/firelock/BlockSuperconductivity()
+/obj/structure/holosign/barrier/firelock/BlockThermalConductivity()
 	return TRUE

 /obj/structure/holosign/barrier/firelock/Initialize()
@@ -115,7 +115,7 @@
 	CanAtmosPass = ATMOS_PASS_NO
 	resistance_flags = FIRE_PROOF

-/obj/structure/holosign/barrier/combifan/BlockSuperconductivity()
+/obj/structure/holosign/barrier/combifan/BlockThermalConductivity()
 	return TRUE

 /obj/structure/holosign/barrier/combifan/Initialize()
@@ -48,14 +48,34 @@
 		return // no message spam
 	..()

+/obj/structure/mirror/attacked_by(obj/item/I, mob/living/user)
+	if(broken || !istype(user) || !I.force)
+		return ..()
+
+	. = ..()
+	if(broken) // breaking a mirror truly gets you bad luck!
+		to_chat(user, "<span class='warning'>A chill runs down your spine as [src] shatters...</span>")
+		user.AddComponent(/datum/component/omen, silent=TRUE) // we have our own message
+
+/obj/structure/mirror/bullet_act(obj/item/projectile/P)
+	if(broken || !isliving(P.firer) || !P.damage)
+		return ..()
+
+	. = ..()
+	if(broken) // breaking a mirror truly gets you bad luck!
+		var/mob/living/unlucky_dude = P.firer
+		to_chat(unlucky_dude, "<span class='warning'>A chill runs down your spine as [src] shatters...</span>")
+		unlucky_dude.AddComponent(/datum/component/omen, silent=TRUE) // we have our own message
+
 /obj/structure/mirror/obj_break(damage_flag, mapload)
-	if(!broken && !(flags_1 & NODECONSTRUCT_1))
-		icon_state = "mirror_broke"
-		if(!mapload)
-			playsound(src, "shatter", 70, 1)
-		if(desc == initial(desc))
-			desc = "Oh no, seven years of bad luck!"
-		broken = TRUE
+	if(broken || (flags_1 & NODECONSTRUCT_1))
+		return
+	icon_state = "mirror_broke"
+	if(!mapload)
+		playsound(src, "shatter", 70, TRUE)
+	if(desc == initial(desc))
+		desc = "Oh no, seven years of bad luck!"
+	broken = TRUE

 /obj/structure/mirror/deconstruct(disassembled = TRUE)
 	if(!(flags_1 & NODECONSTRUCT_1))
@@ -139,7 +139,7 @@ GLOBAL_LIST_EMPTY(bodycontainers) //Let them act as spawnpoints for revenants an

 /obj/structure/bodycontainer/get_remote_view_fullscreens(mob/user)
 	if(user.stat == DEAD || !(user.sight & (SEEOBJS|SEEMOBS)))
-		user.overlay_fullscreen("remote_view", /obj/screen/fullscreen/impaired, 2)
+		user.overlay_fullscreen("remote_view", /atom/movable/screen/fullscreen/impaired, 2)
 /*
 * Morgue
 */
@@ -243,6 +243,32 @@
 			new framestack(T, framestackamount)
 	qdel(src)

+
+/**
+ * Gets all connected tables
+ * Cardinals only
+ */
+/obj/structure/table/proc/connected_floodfill(max = 25)
+	. = list()
+	connected_floodfill_internal(., list())
+
+/obj/structure/table/proc/connected_floodfill_internal(list/out = list(), list/processed = list())
+	if(processed[src])
+		return
+	processed[src] = TRUE
+	out += src
+	var/obj/structure/table/other
+#define RUN_TABLE(dir) \
+	other = locate(/obj/structure/table) in get_step(src, dir); \
+	if(other) { \
+		other.connected_floodfill_internal(out, processed); \
+	}
+	RUN_TABLE(NORTH)
+	RUN_TABLE(SOUTH)
+	RUN_TABLE(EAST)
+	RUN_TABLE(WEST)
+#undef RUN_TABLE
+
 /obj/structure/table/greyscale
 	icon = 'icons/obj/smooth_structures/table_greyscale.dmi'
 	icon_state = "table"
@@ -121,6 +121,7 @@


 /obj/structure/transit_tube/station/proc/launch_pod()
+	set waitfor = FALSE
 	if(launch_cooldown >= world.time)
 		return
 	for(var/obj/structure/transit_tube_pod/pod in loc)
@@ -149,9 +150,7 @@
 		pod_moving = 0
 		if(!QDELETED(pod))
 			var/datum/gas_mixture/floor_mixture = loc.return_air()
-			floor_mixture.archive()
-			pod.air_contents.archive()
-			pod.air_contents.share(floor_mixture, 1) //mix the pod's gas mixture with the tile it's on
+			equalize_all_gases_in_list(list(pod.air_contents,floor_mixture))
 			air_update_turf()

 /obj/structure/transit_tube/station/init_tube_dirs()
@@ -10,8 +10,8 @@

 /obj/structure/transit_tube_pod/Initialize()
 	. = ..()
-	air_contents.set_moles(/datum/gas/oxygen, MOLES_O2STANDARD)
-	air_contents.set_moles(/datum/gas/nitrogen, MOLES_N2STANDARD)
+	air_contents.set_moles(GAS_O2, MOLES_O2STANDARD)
+	air_contents.set_moles(GAS_N2, MOLES_N2STANDARD)
 	air_contents.set_temperature(T20C)


@@ -153,9 +153,25 @@
 /obj/structure/transit_tube_pod/assume_air(datum/gas_mixture/giver)
 	return air_contents.merge(giver)

+/obj/structure/transit_tube_pod/assume_air_moles(datum/gas_mixture/giver, moles)
+	return giver.transfer_to(air_contents, moles)
+
+/obj/structure/transit_tube_pod/assume_air_ratio(datum/gas_mixture/giver, ratio)
+	return giver.transfer_ratio_to(air_contents, ratio)
+
 /obj/structure/transit_tube_pod/remove_air(amount)
 	return air_contents.remove(amount)

+/obj/structure/transit_tube_pod/remove_air_ratio(ratio)
+	return air_contents.remove_ratio(ratio)
+
+/obj/structure/transit_tube_pod/transfer_air(datum/gas_mixture/taker, moles)
+	return air_contents.transfer_to(taker, moles)
+
+/obj/structure/transit_tube_pod/transfer_air_ratio(datum/gas_mixture/taker, ratio)
+	return air_contents.transfer_ratio_to(taker, ratio)
+
+
 /obj/structure/transit_tube_pod/relaymove(mob/mob, direction)
 	if(istype(mob) && mob.client)
 		if(!moving)
@@ -354,10 +354,10 @@
 	. = SEND_SIGNAL(O, COMSIG_COMPONENT_CLEAN_ACT, CLEAN_WEAK)
 	. = O.clean_blood()
 	O.remove_atom_colour(WASHABLE_COLOUR_PRIORITY)
-	if(isitem(O))
-		var/obj/item/I = O
-		I.acid_level = 0
-		I.extinguish()
+	var/datum/component/acid/acid = O.GetComponent(/datum/component/acid)
+	if(acid)
+		acid.level = 0
+	O.extinguish()

 /obj/machinery/shower/proc/wash_turf()
 	if(isturf(loc))
@@ -601,7 +601,9 @@
 		busy = FALSE
 		SEND_SIGNAL(O, COMSIG_COMPONENT_CLEAN_ACT, CLEAN_WEAK)
 		O.clean_blood()
-		O.acid_level = 0
+		var/datum/component/acid/acid = O.GetComponent(/datum/component/acid)
+		if(acid)
+			acid.level = 0
 		create_reagents(5)
 		reagents.add_reagent(dispensedreagent, 5)
 		reagents.reaction(O, TOUCH)
@@ -674,7 +674,7 @@ GLOBAL_LIST_EMPTY(electrochromatic_window_lookup)
 /obj/structure/window/plasma/reinforced/unanchored
 	anchored = FALSE

-/obj/structure/window/plasma/reinforced/BlockSuperconductivity()
+/obj/structure/window/plasma/reinforced/BlockThermalConductivity()
 	return TRUE

 /obj/structure/window/reinforced/tinted
@@ -43,7 +43,8 @@ falloff_distance - Distance at which falloff begins. Sound is at peak volume (in

 */

-/proc/playsound(atom/source, soundin, vol as num, vary, extrarange as num, falloff_exponent = SOUND_FALLOFF_EXPONENT, frequency = null, channel = 0, pressure_affected = TRUE, ignore_walls = TRUE, falloff_distance = SOUND_DEFAULT_FALLOFF_DISTANCE, envwet = -10000, envdry = 0)
+/proc/playsound(atom/source, soundin, vol as num, vary, extrarange as num, falloff_exponent = SOUND_FALLOFF_EXPONENT, frequency = null, channel = 0, pressure_affected = TRUE, ignore_walls = TRUE,
+	falloff_distance = SOUND_DEFAULT_FALLOFF_DISTANCE, envwet = -10000, envdry = 0, distance_multiplier = SOUND_DEFAULT_DISTANCE_MULTIPLIER, distance_multiplier_min_range = SOUND_DEFAULT_MULTIPLIER_EFFECT_RANGE)
 	if(isarea(source))
 		CRASH("playsound(): source is an area")

@@ -83,11 +84,11 @@ falloff_distance - Distance at which falloff begins. Sound is at peak volume (in
 	for(var/P in listeners)
 		var/mob/M = P
 		if(get_dist(M, turf_source) <= maxdistance)
-			M.playsound_local(turf_source, soundin, vol, vary, frequency, falloff_exponent, channel, pressure_affected, S, maxdistance, falloff_distance, null, envwet, envdry)
+			M.playsound_local(turf_source, soundin, vol, vary, frequency, falloff_exponent, channel, pressure_affected, S, maxdistance, falloff_distance, get_dist(M, turf_source) <= distance_multiplier_min_range? 1 : distance_multiplier, envwet, envdry)
 	for(var/P in SSmobs.dead_players_by_zlevel[source_z])
 		var/mob/M = P
 		if(get_dist(M, turf_source) <= maxdistance)
-			M.playsound_local(turf_source, soundin, vol, vary, frequency, falloff_exponent, channel, pressure_affected, S, maxdistance, falloff_distance, null, envwet, envdry)
+			M.playsound_local(turf_source, soundin, vol, vary, frequency, falloff_exponent, channel, pressure_affected, S, maxdistance, falloff_distance, get_dist(M, turf_source) <= distance_multiplier_min_range? 1 : distance_multiplier, envwet, envdry)

 /*! playsound

@@ -108,7 +109,8 @@ distance_multiplier - Can be used to multiply the distance at which the sound is

 */

-/mob/proc/playsound_local(turf/turf_source, soundin, vol as num, vary, frequency, falloff_exponent = SOUND_FALLOFF_EXPONENT, channel = 0, pressure_affected = TRUE, sound/S, max_distance, falloff_distance = SOUND_DEFAULT_FALLOFF_DISTANCE, distance_multiplier = 1, envwet = -10000, envdry = 0)
+/mob/proc/playsound_local(turf/turf_source, soundin, vol as num, vary, frequency, falloff_exponent = SOUND_FALLOFF_EXPONENT, channel = 0, pressure_affected = TRUE, sound/S, max_distance,
+	falloff_distance = SOUND_DEFAULT_FALLOFF_DISTANCE, distance_multiplier = SOUND_DEFAULT_DISTANCE_MULTIPLIER, envwet = -10000, envdry = 0)
 	if(!client || !can_hear())
 		return

@@ -15,9 +15,7 @@ GLOBAL_LIST_INIT(blacklisted_automated_baseturfs, typecacheof(list(

 	if(turf_type)
 		var/turf/newT = ChangeTurf(turf_type, baseturf_type, flags)
-		SSair.remove_from_active(newT)
 		CALCULATE_ADJACENT_TURFS(newT)
-		SSair.add_to_active(newT,1)

 /turf/proc/copyTurf(turf/T)
 	if(T.type != type)
@@ -54,6 +52,14 @@ GLOBAL_LIST_INIT(blacklisted_automated_baseturfs, typecacheof(list(
 /turf/proc/TerraformTurf(path, new_baseturf, flags)
 	return ChangeTurf(path, new_baseturf, flags)

+/turf/proc/get_z_base_turf()
+	. = SSmapping.level_trait(z, ZTRAIT_BASETURF) || /turf/open/space
+	if (!ispath(.))
+		. = text2path(.)
+		if (!ispath(.))
+			warning("Z-level [z] has invalid baseturf '[SSmapping.level_trait(z, ZTRAIT_BASETURF)]'")
+			. = /turf/open/space
+
 // Creates a new turf
 // new_baseturfs can be either a single type or list of types, formated the same as baseturfs. see turf.dm
 /turf/proc/ChangeTurf(path, list/new_baseturfs, flags)
@@ -61,17 +67,12 @@ GLOBAL_LIST_INIT(blacklisted_automated_baseturfs, typecacheof(list(
 		if(null)
 			return
 		if(/turf/baseturf_bottom)
-			path = SSmapping.level_trait(z, ZTRAIT_BASETURF) || /turf/open/space
-			if (!ispath(path))
-				path = text2path(path)
-				if (!ispath(path))
-					warning("Z-level [z] has invalid baseturf '[SSmapping.level_trait(z, ZTRAIT_BASETURF)]'")
-					path = /turf/open/space
+			path = get_z_base_turf()
 		if(/turf/open/space/basic)
 			// basic doesn't initialize and this will cause issues
 			// no warning though because this can happen naturaly as a result of it being built on top of
 			path = /turf/open/space
-	if(!GLOB.use_preloader && path == type && !(flags & CHANGETURF_FORCEOP)) // Don't no-op if the map loader requires it to be reconstructed
+	if(!GLOB.use_preloader && path == type && !(flags & CHANGETURF_FORCEOP) && (baseturfs == new_baseturfs)) // Don't no-op if the map loader requires it to be reconstructed, or if this is a new set of baseturfs
 		return src
 	if(flags & CHANGETURF_SKIP)
 		return new path(src)
@@ -142,22 +143,25 @@ GLOBAL_LIST_INIT(blacklisted_automated_baseturfs, typecacheof(list(

 /turf/open/ChangeTurf(path, list/new_baseturfs, flags)
 	if ((flags & CHANGETURF_INHERIT_AIR) && ispath(path, /turf/open))
-		SSair.remove_from_active(src)
 		var/datum/gas_mixture/stashed_air = new()
 		stashed_air.copy_from(air)
 		. = ..()
 		if (!.) // changeturf failed or didn't do anything
 			QDEL_NULL(stashed_air)
-			update_air_ref()
 			return
 		var/turf/open/newTurf = .
 		newTurf.air.copy_from(stashed_air)
+		update_air_ref(planetary_atmos ? 1 : 2)
 		QDEL_NULL(stashed_air)
-		SSair.add_to_active(newTurf)
 	else
 		if(ispath(path,/turf/closed))
 			flags |= CHANGETURF_RECALC_ADJACENT
-		return ..()
+			update_air_ref(-1)
+			. = ..()
+		else
+			. = ..()
+			if(!istype(air,/datum/gas_mixture))
+				Initalize_Atmos(0)

 // Take off the top layer turf and replace it with the next baseturf down
 /turf/proc/ScrapeAway(amount=1, flags)
@@ -317,7 +321,6 @@ GLOBAL_LIST_INIT(blacklisted_automated_baseturfs, typecacheof(list(
 		total.merge(S.air)

 	air.copy_from(total.remove_ratio(1/turf_count))
-	SSair.add_to_active(src)

 /turf/proc/ReplaceWithLattice()
 	ScrapeAway(flags = CHANGETURF_INHERIT_AIR)
@@ -8,15 +8,17 @@
 	rad_insulation = RAD_MEDIUM_INSULATION
 	wave_explosion_block = 10
 	wave_explosion_multiply = 0.75
+	/// How much we block yelling
+	var/yelling_resistance = 10
+	/// how much of inbound yelling to dampen
+	var/yelling_dampen = 0.5

 /turf/closed/Initialize()
 	. = ..()
-	update_air_ref()

 /turf/closed/AfterChange()
 	. = ..()
 	SSair.high_pressure_delta -= src
-	update_air_ref()

 /turf/closed/get_smooth_underlay_icon(mutable_appearance/underlay_appearance, turf/asking_turf, adjacency_dir)
 	return FALSE
@@ -201,16 +203,19 @@
 	desc = "A wall made out of a strange metal. The squares on it pulse in a predictable pattern."
 	icon = 'icons/turf/walls/hierophant_wall.dmi'
 	icon_state = "wall"
-	
+
 /turf/closed/indestructible/rock/glacierrock
 	name = "unaturally hard ice wall"
 	desc = "Ice, hardened over thousands of years, you're not breaking through this."
 	icon = 'icons/turf/walls.dmi'
 	icon_state = "snow_rock"
-	
+
 /turf/closed/indestructible/rock/glacierrock/blue
 	name = "blue ice wall"
 	desc = "The incredible compressive forces that formed this sturdy ice wall gave it a blue color."
 	icon = 'icons/turf/walls.dmi'
 	icon_state = "ice"
 	canSmoothWith = list(/turf/closed/indestructible/rock/glacierrock/blue)
+
+/turf/closed/get_yelling_resistance(power)
+	return yelling_resistance + (power * yelling_dampen)
@@ -218,18 +218,15 @@
 			flash_color(L, flash_color = "#C80000", flash_time = 10)

 /turf/open/Initalize_Atmos(times_fired)
-	set_excited(FALSE)
+	if(!blocks_air)
+		if(!istype(air,/datum/gas_mixture/turf))
+			air = new(2500,src)
+		air.copy_from_turf(src)
+		update_air_ref(planetary_atmos ? 1 : 2)
+
 	update_visuals()

-	current_cycle = times_fired
 	ImmediateCalculateAdjacentTurfs()
-	for(var/i in atmos_adjacent_turfs)
-		var/turf/open/enemy_tile = i
-		var/datum/gas_mixture/enemy_air = enemy_tile.return_air()
-		if(!get_excited() && air.compare(enemy_air))
-			//testing("Active turf found. Return value of compare(): [is_active]")
-			set_excited(TRUE)
-			SSair.add_to_active_extools(src)

 /turf/open/proc/GetHeatCapacity()
 	. = air.heat_capacity()
@@ -323,8 +320,8 @@

 /turf/open/rad_act(pulse_strength)
 	. = ..()
-	if (air.get_moles(/datum/gas/carbon_dioxide) && air.get_moles(/datum/gas/oxygen))
-		pulse_strength = min(pulse_strength,air.get_moles(/datum/gas/carbon_dioxide)*1000,air.get_moles(/datum/gas/oxygen)*2000) //Ensures matter is conserved properly
-		air.set_moles(/datum/gas/carbon_dioxide, max(air.get_moles(/datum/gas/carbon_dioxide)-(pulse_strength/1000),0))
-		air.set_moles(/datum/gas/oxygen, max(air.get_moles(/datum/gas/oxygen)-(pulse_strength/2000),0))
-		air.adjust_moles(/datum/gas/pluoxium, pulse_strength/4000)
+	if (air.get_moles(GAS_CO2) && air.get_moles(GAS_O2))
+		pulse_strength = min(pulse_strength,air.get_moles(GAS_CO2)*1000,air.get_moles(GAS_O2)*2000) //Ensures matter is conserved properly
+		air.set_moles(GAS_CO2, max(air.get_moles(GAS_CO2)-(pulse_strength/1000),0))
+		air.set_moles(GAS_O2, max(air.get_moles(GAS_O2)-(pulse_strength/2000),0))
+		air.adjust_moles(GAS_PLUOXIUM, pulse_strength/4000)
@@ -0,0 +1,95 @@
+/turf/open/transparent
+	baseturfs = /turf/open/transparent/openspace
+	intact = FALSE //this means wires go on top
+
+/turf/open/transparent/Initialize() // handle plane and layer here so that they don't cover other obs/turfs in Dream Maker
+	. = ..()
+	plane = OPENSPACE_PLANE
+	layer = OPENSPACE_LAYER
+
+	return INITIALIZE_HINT_LATELOAD
+
+/turf/open/transparent/LateInitialize()
+	update_multiz(TRUE, TRUE)
+
+/turf/open/transparent/Destroy()
+	vis_contents.len = 0
+	return ..()
+
+/turf/open/transparent/update_multiz(prune_on_fail = FALSE, init = FALSE)
+	. = ..()
+	var/turf/T = below()
+	if(!T)
+		vis_contents.len = 0
+		if(!show_bottom_level() && prune_on_fail) //If we cant show whats below, and we prune on fail, change the turf to plating as a fallback
+			ChangeTurf(/turf/open/floor/plating, flags = CHANGETURF_INHERIT_AIR)
+		return FALSE
+	if(init)
+		vis_contents += T
+	return TRUE
+
+/turf/open/transparent/multiz_turf_del(turf/T, dir)
+	if(dir != DOWN)
+		return
+	update_multiz()
+
+/turf/open/transparent/multiz_turf_new(turf/T, dir)
+	if(dir != DOWN)
+		return
+	update_multiz()
+
+///Called when there is no real turf below this turf
+/turf/open/transparent/proc/show_bottom_level()
+	var/turf/path = get_z_base_turf()
+	var/mutable_appearance/underlay_appearance = mutable_appearance(initial(path.icon), initial(path.icon_state), layer = TURF_LAYER, plane = PLANE_SPACE)
+	underlays += underlay_appearance
+	return TRUE
+
+
+/turf/open/transparent/glass
+	name = "Glass floor"
+	desc = "Dont jump on it, or do, I'm not your mom."
+	icon = 'icons/turf/floors/glass.dmi'
+	icon_state = "floor_glass"
+	smooth = SMOOTH_MORE
+	var/floor_tile = /obj/item/stack/sheet/glass
+	canSmoothWith = list(/turf/open/transparent/glass, /turf/open/transparent/glass/reinforced)
+	footstep = FOOTSTEP_PLATING
+	barefootstep = FOOTSTEP_HARD_BAREFOOT
+	clawfootstep = FOOTSTEP_HARD_CLAW
+	heavyfootstep = FOOTSTEP_GENERIC_HEAVY
+
+/turf/open/transparent/glass/Initialize()
+	icon_state = "" //Prevent the normal icon from appearing behind the smooth overlays
+	..()
+	return INITIALIZE_HINT_LATELOAD
+
+/turf/open/floor/glass/LateInitialize()
+	. = ..()
+	// AddElement(/datum/element/turf_z_transparency, TRUE)
+
+/turf/open/transparent/glass/wrench_act(mob/living/user, obj/item/I)
+	to_chat(user, "<span class='notice'>You begin removing glass...</span>")
+	if(I.use_tool(src, user, 30, volume=80))
+		if(!istype(src, /turf/open/transparent/glass))
+			return TRUE
+		if(floor_tile)
+			new floor_tile(src, 2)
+		ScrapeAway(flags = CHANGETURF_INHERIT_AIR)
+	return TRUE
+
+/turf/open/transparent/glass/reinforced
+	name = "Reinforced glass floor"
+	desc = "Do jump on it, it can take it."
+	icon = 'icons/turf/floors/reinf_glass.dmi'
+	floor_tile = /obj/item/stack/sheet/rglass
+
+/turf/open/transparent/glass/reinforced/wrench_act(mob/living/user, obj/item/I)
+	to_chat(user, "<span class='notice'>You begin removing reinforced glass...</span>")
+	if(I.use_tool(src, user, 30, volume=80))
+		if(!istype(src, /turf/open/transparent/glass/reinforced))
+			return TRUE
+		if(floor_tile)
+			new floor_tile(src, 2)
+		ScrapeAway(flags = CHANGETURF_INHERIT_AIR)
+	return TRUE
@@ -27,7 +27,7 @@

 	var/icon_regular_floor = "floor" //used to remember what icon the tile should have by default
 	var/icon_plating = "plating"
-	thermal_conductivity = 0.004
+	thermal_conductivity = 0.04
 	heat_capacity = 10000
 	intact = 1
 	var/broken = 0
@@ -69,7 +69,7 @@
 	ChangeTurf(/turf/open/floor/plating/rust)

 /turf/open/floor/wood/cold
-	temperature = 255.37
+	initial_temperature = 255.37

 /turf/open/floor/wood/airless
 	initial_gas_mix = AIRLESS_ATMOS
@@ -177,7 +177,7 @@
 	icon = 'icons/turf/floors/ice_turf.dmi'
 	icon_state = "unsmooth"
 	initial_gas_mix = FROZEN_ATMOS
-	temperature = 180
+	initial_temperature = 180
 	planetary_atmos = TRUE
 	baseturfs = /turf/open/floor/plating/ice
 	slowdown = 1
@@ -201,10 +201,10 @@
 	canSmoothWith = list(/turf/open/floor/plating/ice/smooth, /turf/open/floor/plating/ice, /turf/open/floor/plating/ice/colder)

 /turf/open/floor/plating/ice/colder
-	temperature = 140
+	initial_temperature = 140

 /turf/open/floor/plating/ice/temperate
-	temperature = 255.37
+	initial_temperature = 255.37

 /turf/open/floor/plating/ice/break_tile()
 	return
@@ -221,7 +221,7 @@
 	icon = 'icons/turf/snow.dmi'
 	icon_state = "snowplating"
 	initial_gas_mix = FROZEN_ATMOS
-	temperature = 180
+	initial_temperature = 180
 	attachment_holes = FALSE
 	planetary_atmos = TRUE
 	footstep = FOOTSTEP_SAND
@@ -230,7 +230,7 @@
 	heavyfootstep = FOOTSTEP_GENERIC_HEAVY

 /turf/open/floor/plating/snowed/cavern
-	initial_gas_mix = "o2=0;n2=82;plasma=24;TEMP=120"
+	initial_gas_mix = "n2=82;plasma=24;TEMP=120"

 /turf/open/floor/plating/snowed/smoothed
 	smooth = SMOOTH_MORE | SMOOTH_BORDER
@@ -240,10 +240,10 @@
 	icon_state = "smooth"

 /turf/open/floor/plating/snowed/colder
-	temperature = 140
+	initial_temperature = 140

 /turf/open/floor/plating/snowed/temperatre
-	temperature = 255.37
+	initial_temperature = 255.37

 /turf/open/floor/plating/snowed/smoothed/icemoon
 	initial_gas_mix = ICEMOON_DEFAULT_ATMOS
@@ -3,7 +3,7 @@
 	name = "reinforced floor"
 	desc = "Extremely sturdy."
 	icon_state = "engine"
-	thermal_conductivity = 0.0025
+	thermal_conductivity = 0.025
 	heat_capacity = INFINITY
 	floor_tile = /obj/item/stack/rods
 	footstep = FOOTSTEP_PLATING
--- a/Show More
+++ b/Show More