Revert "Revert "Adds glass floors" (#16524)"

This reverts commit 517f5e8304.

code/__DEFINES/footstep.dm

@@ -7,12 +7,14 @@
 #define FOOTSTEP_WATER "water"
 #define FOOTSTEP_LAVA "lava"
 #define FOOTSTEP_MEAT "meat"
+#define FOOTSTEP_GLASS "glass"
 //barefoot sounds
 #define FOOTSTEP_WOOD_BAREFOOT "woodbarefoot"
 #define FOOTSTEP_WOOD_CLAW "woodclaw"
 #define FOOTSTEP_HARD_BAREFOOT "hardbarefoot"
 #define FOOTSTEP_HARD_CLAW "hardclaw"
 #define FOOTSTEP_CARPET_BAREFOOT "carpetbarefoot"
+#define FOOTSTEP_GLASS_BAREFOOT "glassbarefoot"
 //misc footstep sounds
 #define FOOTSTEP_GENERIC_HEAVY "heavy"
 
@@ -83,7 +85,11 @@ GLOBAL_LIST_INIT(footstep, list(
 		'sound/effects/footstep/lava2.ogg',
 		'sound/effects/footstep/lava3.ogg'), 100, 0),
 	FOOTSTEP_MEAT = list(list(
-		'sound/effects/meatslap.ogg'), 100, 0)
+		'sound/effects/meatslap.ogg'), 100, 0),
+	FOOTSTEP_GLASS = list(list(
+		'sound/effects/footstep/glass1.ogg',
+		'sound/effects/footstep/glass2.ogg',
+		'sound/effects/footstep/glass3.ogg'), 100, 1),
 ))
 //bare footsteps lists
 GLOBAL_LIST_INIT(barefootstep, list(
@@ -127,6 +133,10 @@ GLOBAL_LIST_INIT(barefootstep, list(
 		'sound/effects/footstep/lava3.ogg'), 100, 0),
 	FOOTSTEP_MEAT = list(list(
 		'sound/effects/meatslap.ogg'), 100, 0),
+	FOOTSTEP_GLASS_BAREFOOT = list(list(
+		'sound/effects/footstep/glassbarefoot1.ogg',
+		'sound/effects/footstep/glassbarefoot2.ogg',
+		'sound/effects/footstep/glassbarefoot3.ogg'), 100, 1),
 ))
 
 //claw footsteps lists
@@ -171,6 +181,10 @@ GLOBAL_LIST_INIT(clawfootstep, list(
 		'sound/effects/footstep/lava3.ogg'), 100, 0),
 	FOOTSTEP_MEAT = list(list(
 		'sound/effects/meatslap.ogg'), 100, 0),
+	FOOTSTEP_GLASS = list(list(
+		'sound/effects/footstep/glassbarefoot1.ogg',
+		'sound/effects/footstep/glassbarefoot2.ogg',
+		'sound/effects/footstep/glassbarefoot3.ogg'), 100, 1),
 ))
 
 //heavy footsteps list

code/__DEFINES/layers.dm

@@ -26,11 +26,13 @@
 #define DISPOSAL_PIPE_LAYER 2.3
 #define GAS_PIPE_HIDDEN_LAYER 2.35
 #define WIRE_LAYER 2.4
+#define TRANSPARENT_TURF_LAYER 2.41
 #define WIRE_TERMINAL_LAYER 2.45
 #define GAS_SCRUBBER_LAYER 2.46
 #define GAS_PIPE_VISIBLE_LAYER 2.47
 #define GAS_FILTER_LAYER 2.48
 #define GAS_PUMP_LAYER 2.49
+#define HOLOPAD_LAYER 2.491
 #define CONVEYOR_LAYER 2.495
 #define LOW_OBJ_LAYER 2.5
 #define LOW_SIGIL_LAYER 2.52

code/game/machinery/Beacon.dm

@@ -4,7 +4,7 @@
 	name = "Bluespace Gigabeacon"
 	desc = "A device that draws power from bluespace and creates a permanent tracking beacon."
 	level = 1		// underfloor
-	layer = 2.5
+	layer = WIRE_LAYER+0.001
 	anchored = 1
 	use_power = IDLE_POWER_USE
 	idle_power_usage = 0
@@ -26,7 +26,8 @@
 	Beacon.syndicate = syndicate
 	Beacon.area_bypass = area_bypass
 	Beacon.cc_beacon = cc_beacon
-	hide(T.intact)
+	if(!T.transparent_floor)
+		hide(T.intact)
 
 /obj/machinery/bluespace_beacon/proc/destroy_beacon()
 	QDEL_NULL(Beacon)

code/game/machinery/hologram.dm

@@ -43,7 +43,7 @@ GLOBAL_LIST_EMPTY(holopads)
 	use_power = IDLE_POWER_USE
 	idle_power_usage = 5
 	active_power_usage = 100
-	layer = TURF_LAYER+0.1 //Preventing mice and drones from sneaking under them.
+	layer = HOLOPAD_LAYER //Preventing mice and drones from sneaking under them.
 	plane = FLOOR_PLANE
 	max_integrity = 300
 	armor = list(melee = 50, bullet = 20, laser = 20, energy = 20, bomb = 0, bio = 0, rad = 0, fire = 50, acid = 0)

code/game/machinery/magnet.dm

@@ -11,7 +11,7 @@
 	name = "Electromagnetic Generator"
 	desc = "A device that uses station power to create points of magnetic energy."
 	level = 1		// underfloor
-	layer = 2.5
+	layer = WIRE_LAYER+0.001
 	anchored = 1
 	use_power = IDLE_POWER_USE
 	idle_power_usage = 50
@@ -32,7 +32,8 @@
 /obj/machinery/magnetic_module/New()
 	..()
 	var/turf/T = loc
-	hide(T.intact)
+	if(!T.transparent_floor)
+		hide(T.intact)
 	center = T
 
 	spawn(10)	// must wait for map loading to finish

code/game/machinery/navbeacon.dm

@@ -8,7 +8,7 @@
 	name = "navigation beacon"
 	desc = "A radio beacon used for bot navigation."
 	level = 1		// underfloor
-	layer = 2.5
+	layer = WIRE_LAYER+0.001
 	anchored = 1
 	max_integrity = 500
 	armor = list(melee = 70, bullet = 70, laser = 70, energy = 70, bomb = 0, bio = 0, rad = 0, fire = 80, acid = 80)
@@ -26,7 +26,8 @@
 	set_codes()
 
 	var/turf/T = loc
-	hide(T.intact)
+	if(!T.transparent_floor)
+		hide(T.intact)
 	if(!codes || !codes.len)
 		log_runtime(EXCEPTION("Empty codes datum at ([x],[y],[z])"), src, list("codes_txt: '[codes_txt]'"))
 	if("patrol" in codes)

code/game/machinery/pipe/construction.dm

@@ -337,12 +337,18 @@
 	fixdir()
 
 	var/pipe_dir = get_pipe_dir()
+	var/turf/T = get_turf(loc)
 
 	for(var/obj/machinery/atmospherics/M in src.loc)
 		if((M.initialize_directions & pipe_dir) && M.check_connect_types_construction(M,src))	// matches at least one direction on either type of pipe
 			to_chat(user, "<span class='warning'>There is already a pipe of the same type at this location.</span>")
 			return 1
 
+	if(pipe_type in list(PIPE_SUPPLY_STRAIGHT, PIPE_SUPPLY_BENT, PIPE_SCRUBBERS_STRAIGHT, PIPE_SCRUBBERS_BENT, PIPE_HE_STRAIGHT, PIPE_HE_BENT, PIPE_SUPPLY_MANIFOLD, PIPE_SCRUBBERS_MANIFOLD, PIPE_SUPPLY_MANIFOLD4W, PIPE_SCRUBBERS_MANIFOLD4W, PIPE_UVENT, PIPE_SUPPLY_CAP, PIPE_SCRUBBERS_CAP, PIPE_PASV_VENT, PIPE_DP_VENT, PIPE_PASSIVE_GATE))
+		if(T.transparent_floor) //stops jank with transparent floors and pipes
+			to_chat(user, "<span class='warning'>You can only fix simple pipes and devices over glass floors!</span>")
+			return 1
+
 	switch(pipe_type) //What kind of heartless person thought of doing this?
 		if(PIPE_SIMPLE_STRAIGHT, PIPE_SIMPLE_BENT)
 			var/obj/machinery/atmospherics/pipe/simple/P = new( src.loc )

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

@@ -27,8 +27,8 @@
 		return
 
 	var/turf/T = get_turf(P)
-	if(P.level < 2 && T.level == 1 && T.intact)
-		to_chat(user, "<span class='warning'>You must remove the plating first.</span>")
+	if(P.level < 2 && T.level == 1 && T.intact && !T.transparent_floor)
+		to_chat(user, "<span class='warning'>You must remove the flooring first.</span>")
 		return
 
 	P.change_color(GLOB.pipe_colors[paint_setting])

code/game/objects/obj_defense.dm

@@ -90,7 +90,7 @@
 /obj/blob_act(obj/structure/blob/B)
 	if(isturf(loc))
 		var/turf/T = loc
-		if(T.intact && level == 1) //the blob doesn't destroy thing below the floor
+		if(T.intact && level == 1 || T.transparent_floor) //the blob doesn't destroy thing below the floor
 			return
 	take_damage(400, BRUTE, "melee", 0, get_dir(src, B))
 
@@ -199,7 +199,7 @@ GLOBAL_DATUM_INIT(acid_overlay, /mutable_appearance, mutable_appearance('icons/e
 /obj/fire_act(datum/gas_mixture/air, exposed_temperature, exposed_volume, global_overlay = TRUE)
 	if(isturf(loc))
 		var/turf/T = loc
-		if(T.intact && level == 1) //fire can't damage things hidden below the floor.
+		if(T.intact && level == 1 || T.transparent_floor) //fire can't damage things hidden below the floor.
 			return
 	..()
 	if(exposed_temperature && !(resistance_flags & FIRE_PROOF))

code/game/objects/structures/safe.dm

@@ -368,7 +368,8 @@ GLOBAL_LIST_EMPTY(safes)
 /obj/structure/safe/floor/Initialize()
 	. = ..()
 	var/turf/T = loc
-	hide(T.intact)
+	if(!T.transparent_floor)
+		hide(T.intact)
 
 /obj/structure/safe/floor/hide(intact)
 	invisibility = intact ? INVISIBILITY_MAXIMUM : 0

code/game/turfs/simulated/floor.dm

@@ -27,6 +27,7 @@ GLOBAL_LIST_INIT(icons_to_ignore_at_floor_init, list("damaged1","damaged2","dama
 	var/list/broken_states = list("damaged1", "damaged2", "damaged3", "damaged4", "damaged5")
 	var/list/burnt_states = list("floorscorched1", "floorscorched2")
 	var/list/prying_tool_list = list(TOOL_CROWBAR) //What tool/s can we use to pry up the tile?
+	var/keep_dir = TRUE //When false, resets dir to default on changeturf()
 
 	var/footstep = FOOTSTEP_FLOOR
 	var/barefootstep = FOOTSTEP_HARD_BAREFOOT
@@ -124,11 +125,18 @@ GLOBAL_LIST_INIT(icons_to_ignore_at_floor_init, list("damaged1","damaged2","dama
 
 	var/turf/simulated/floor/W = ..()
 
+	var/obj/machinery/atmospherics/R
+
 	if(keep_icon)
 		W.icon_regular_floor = old_icon
 		W.icon_plating = old_plating
+	if(W.keep_dir)
 		W.dir = old_dir
-
+	if(W.transparent_floor)
+		for(R in W)
+			R.update_icon()
+	for(R in W)
+		R.update_underlays()
 	W.update_icon()
 	return W
 

code/game/turfs/simulated/floor/plating.dm

@@ -70,6 +70,36 @@
 			to_chat(user, "<span class='warning'>This section is too damaged to support a tile! Use a welder to fix the damage.</span>")
 		return TRUE
 
+	else if(is_glass_sheet(C))
+		if(broken || burnt)
+			to_chat(user, "<span class='warning'>Repair the plating first!</span>")
+			return TRUE
+		var/obj/item/stack/sheet/R = C
+		if(R.get_amount() < 2)
+			to_chat(user, "<span class='warning'>You need two sheets of [C] to build a [C] floor!</span>")
+			return TRUE
+		else
+			to_chat(user, "<span class='notice'>You begin swapping the plating for [C]...</span>")
+			if(do_after(user, 3 SECONDS * C.toolspeed, target = src))
+				if(R.get_amount() >= 2 && !istype(src, /turf/simulated/floor/transparent/glass))
+					if(istype(C, /obj/item/stack/sheet/plasmaglass)) //So, what type of glass floor do we want today?
+						ChangeTurf(/turf/simulated/floor/transparent/glass/plasma)
+					else if(istype(C, /obj/item/stack/sheet/plasmarglass))
+						ChangeTurf(/turf/simulated/floor/transparent/glass/reinforced/plasma)
+					else if(istype(C, /obj/item/stack/sheet/glass))
+						ChangeTurf(/turf/simulated/floor/transparent/glass)
+					else if(istype(C, /obj/item/stack/sheet/rglass))
+						ChangeTurf(/turf/simulated/floor/transparent/glass/reinforced)
+					else if(istype(C, /obj/item/stack/sheet/titaniumglass))
+						ChangeTurf(/turf/simulated/floor/transparent/glass/titanium)
+					else if(istype(C, /obj/item/stack/sheet/plastitaniumglass))
+						ChangeTurf(/turf/simulated/floor/transparent/glass/titanium/plastic)
+					playsound(src, C.usesound, 80, TRUE)
+					R.use(2)
+					to_chat(user, "<span class='notice'>You swap the plating for [C].</span>")
+					new /obj/item/stack/sheet/metal(src, 2)
+				return TRUE
+
 /turf/simulated/floor/plating/screwdriver_act(mob/user, obj/item/I)
 	. = TRUE
 	if(!I.tool_use_check(user, 0))

code/game/turfs/simulated/floor/transparent.dm

@@ -0,0 +1,99 @@
+/turf/simulated/floor/transparent/glass
+	name = "glass floor"
+	desc = "Don't jump on it... Or do, I'm not your mom."
+	icon = 'icons/turf/floors/glass.dmi'
+	icon_state = "unsmooth"
+	baseturf = /turf/space
+	smooth = SMOOTH_TRUE
+	canSmoothWith = list(/turf/simulated/floor/transparent/glass, /turf/simulated/floor/transparent/glass/reinforced, /turf/simulated/floor/transparent/glass/plasma, /turf/simulated/floor/transparent/glass/reinforced/plasma)
+	footstep = FOOTSTEP_GLASS
+	barefootstep = FOOTSTEP_GLASS_BAREFOOT
+	clawfootstep = FOOTSTEP_GLASS_BAREFOOT
+	heavyfootstep = FOOTSTEP_GLASS_BAREFOOT
+	light_power = 0.25
+	light_range = 2
+	layer = TRANSPARENT_TURF_LAYER
+	keep_dir = FALSE
+	intact = FALSE
+	transparent_floor = TRUE
+
+/turf/simulated/floor/transparent/glass/Initialize(mapload)
+	. = ..()
+	var/image/I = image('icons/turf/space.dmi', src, SPACE_ICON_STATE)
+	I.plane = PLANE_SPACE
+	underlays += I
+	dir = SOUTH //dirs that are not 2/south cause smoothing jank
+	icon_state = "" //Prevents default icon appearing behind the glass
+
+/turf/simulated/floor/transparent/glass/attackby(obj/item/C, mob/user, params)
+	if(!C || !user)
+		return
+	if(istype(C, /obj/item/crowbar))
+		var/obj/item/stack/R = user.get_inactive_hand()
+		if(istype(R, /obj/item/stack/sheet/metal))
+			if(R.get_amount() < 2) //not enough metal in the stack
+				to_chat(user, "<span class='danger'>You also need to hold two sheets of metal to dismantle \the [src]!</span>")
+				return
+			else
+				to_chat(user, "<span class='notice'>You begin replacing \the [src]...</span>")
+				playsound(src, C.usesound, 80, TRUE)
+				if(do_after(user, 3 SECONDS * C.toolspeed, target = src))
+					if(R.get_amount() >= 2 && !istype(src, /turf/simulated/floor/plating))
+						if(!transparent_floor)
+							return
+						if(istype(src, /turf/simulated/floor/transparent/glass/reinforced)) //What material is returned? Depends on the turf
+							new /obj/item/stack/sheet/rglass(src, 2)
+						else if(istype(src, /turf/simulated/floor/transparent/glass))
+							new /obj/item/stack/sheet/glass(src, 2)
+						else if(istype(src, /turf/simulated/floor/transparent/glass/plasma))
+							new /obj/item/stack/sheet/plasmaglass(src, 2)
+						else if(istype(src, /turf/simulated/floor/transparent/glass/reinforced/plasma))
+							new /obj/item/stack/sheet/plasmarglass(src, 2)
+						else if(istype(src, /turf/simulated/floor/transparent/glass/titanium))
+							new /obj/item/stack/sheet/titaniumglass(src, 2)
+						else if(istype(src, /turf/simulated/floor/transparent/glass/titanium/plastic))
+							new /obj/item/stack/sheet/plastitaniumglass(src, 2)
+						R.use(2)
+						ChangeTurf(/turf/simulated/floor/plating)
+
+		else //not holding metal at all
+			to_chat(user, "<span class='danger'>You also need to hold two sheets of metal to dismantle \the [src]!</span>")
+			return
+
+
+/turf/simulated/floor/transparent/glass/reinforced
+	name = "reinforced glass floor"
+	desc = "Jump on it, it can cope. Promise..."
+	icon = 'icons/turf/floors/reinf_glass.dmi'
+	thermal_conductivity = 0.035
+	heat_capacity = 50000
+
+/turf/simulated/floor/transparent/glass/reinforced/acid_act(acidpwr, acid_volume)
+	acidpwr = min(acidpwr, 50)
+	. = ..()
+
+/turf/simulated/floor/transparent/glass/plasma
+	name = "plasma glass floor"
+	desc = "Wait, was space always that color?"
+	icon = 'icons/turf/floors/plasmaglass.dmi'
+	thermal_conductivity = 0.030
+	heat_capacity = 75000
+
+/turf/simulated/floor/transparent/glass/reinforced/plasma
+	name = "reinforced plasma glass floor"
+	desc = "For when you REALLY don't want your floor choice to suffocate everyone."
+	icon = 'icons/turf/floors/reinf_plasmaglass.dmi'
+	thermal_conductivity = 0.025
+	heat_capacity = 325000
+
+/turf/simulated/floor/transparent/glass/titanium
+	name = "titanium glass floor"
+	canSmoothWith = list(/turf/simulated/floor/transparent/glass/titanium, /turf/simulated/floor/transparent/glass/titanium/plastic)
+	desc = "Stylish AND strong!"
+	icon = 'icons/turf/floors/titaniumglass.dmi'
+	thermal_conductivity = 0.025
+	heat_capacity = 325000
+
+/turf/simulated/floor/transparent/glass/titanium/plastic
+	name = "plastitanium glass floor"
+	icon = 'icons/turf/floors/plastitaniumglass.dmi'

code/game/turfs/turf.dm

@@ -6,6 +6,7 @@
 	var/intact = TRUE
 	var/turf/baseturf = /turf/space
 	var/slowdown = 0 //negative for faster, positive for slower
+	var/transparent_floor = FALSE //used to check if pipes should be visible under the turf or not
 
 	///Properties for open tiles (/floor)
 	/// All the gas vars, on the turf, are meant to be utilized for initializing a gas datum and setting its first gas values; the turf vars are never further modified at runtime; it is never directly used for calculations by the atmospherics system.

code/modules/atmospherics/machinery/atmospherics.dm

@@ -71,10 +71,13 @@ Pipelines + Other Objects -> Pipe network
 // Icons/overlays/underlays
 /obj/machinery/atmospherics/update_icon()
 	var/turf/T = get_turf(loc)
-	if(!T || level == 2 || !T.intact)
-		plane = GAME_PLANE
-	else
+	if(T.transparent_floor)
 		plane = FLOOR_PLANE
+	else
+		if(!T || level == 2 || !T.intact)
+			plane = GAME_PLANE
+		else
+			plane = FLOOR_PLANE
 
 /obj/machinery/atmospherics/proc/update_pipe_image()
 	pipe_image = image(src, loc, layer = ABOVE_HUD_LAYER, dir = dir) //the 20 puts it above Byond's darkness (not its opacity view)
@@ -95,15 +98,18 @@ Pipelines + Other Objects -> Pipe network
 
 /obj/machinery/atmospherics/proc/add_underlay(turf/T, obj/machinery/atmospherics/node, direction, icon_connect_type)
 	if(node)
-		if(T.intact && node.level == 1 && istype(node, /obj/machinery/atmospherics/pipe))
+		if(T.intact && node.level == 1 && istype(node, /obj/machinery/atmospherics/pipe) && !T.transparent_floor)
 			//underlays += SSair.icon_manager.get_atmos_icon("underlay_down", direction, color_cache_name(node))
 			underlays += SSair.icon_manager.get_atmos_icon("underlay", direction, color_cache_name(node), "down" + icon_connect_type)
 		else
 			//underlays += SSair.icon_manager.get_atmos_icon("underlay_intact", direction, color_cache_name(node))
 			underlays += SSair.icon_manager.get_atmos_icon("underlay", direction, color_cache_name(node), "intact" + icon_connect_type)
 	else
-		//underlays += SSair.icon_manager.get_atmos_icon("underlay_exposed", direction, pipe_color)
-		underlays += SSair.icon_manager.get_atmos_icon("underlay", direction, color_cache_name(node), "exposed" + icon_connect_type)
+		if(T.transparent_floor) //we want to keep pipes under transparent floors connected normally
+			underlays += SSair.icon_manager.get_atmos_icon("underlay", direction, color_cache_name(node), "intact" + icon_connect_type)
+		else
+			//underlays += SSair.icon_manager.get_atmos_icon("underlay_exposed", direction, pipe_color)
+			underlays += SSair.icon_manager.get_atmos_icon("underlay", direction, color_cache_name(node), "exposed" + icon_connect_type)
 
 /obj/machinery/atmospherics/proc/update_underlays()
 	if(check_icon_cache())
@@ -166,11 +172,14 @@ Pipelines + Other Objects -> Pipe network
 
 //(De)construction
 /obj/machinery/atmospherics/attackby(obj/item/W, mob/user)
+	var/turf/T = get_turf(src)
 	if(can_unwrench && istype(W, /obj/item/wrench))
-		var/turf/T = get_turf(src)
+		if(T.transparent_floor && istype(src, /obj/machinery/atmospherics/pipe) && layer != GAS_PIPE_VISIBLE_LAYER) //pipes on GAS_PIPE_VISIBLE_LAYER are above the transparent floor and should be interactable
+			to_chat(user, "<span class='danger'>You can't interact with something that's under the floor!</span>")
+			return
 		if(level == 1 && isturf(T) && T.intact)
 			to_chat(user, "<span class='danger'>You must remove the plating first.</span>")
-			return 1
+			return
 		var/datum/gas_mixture/int_air = return_air()
 		var/datum/gas_mixture/env_air = loc.return_air()
 		add_fingerprint(user)
@@ -184,14 +193,14 @@ Pipelines + Other Objects -> Pipe network
 		playsound(src.loc, W.usesound, 50, 1)
 		to_chat(user, "<span class='notice'>You begin to unfasten \the [src]...</span>")
 		if(internal_pressure > 2*ONE_ATMOSPHERE)
-			to_chat(user, "<span class='warning'>As you begin unwrenching \the [src] a gush of air blows in your face... maybe you should reconsider?</span>")
+			to_chat(user, "<span class='warning'>As you begin unwrenching \the [src] a gust of air blows in your face... maybe you should reconsider?</span>")
 			unsafe_wrenching = TRUE //Oh dear oh dear
 
 		if(do_after(user, 40 * W.toolspeed, target = src) && !QDELETED(src))
 			user.visible_message( \
 				"[user] unfastens \the [src].", \
 				"<span class='notice'>You have unfastened \the [src].</span>", \
-				"<span class='italics'>You hear ratchet.</span>")
+				"<span class='italics'>You hear ratcheting.</span>")
 			investigate_log("was <span class='warning'>REMOVED</span> by [key_name(usr)]", "atmos")
 
 			for(var/obj/item/clothing/shoes/magboots/usermagboots in user.get_equipped_items())
@@ -206,6 +215,9 @@ Pipelines + Other Objects -> Pipe network
 					unsafe_pressure_release(user,internal_pressure)
 			deconstruct(TRUE)
 	else
+		if(T.transparent_floor)
+			to_chat(user, "<span class='danger'>You can't interact with something that's under the floor!</span>")
+			return
 		return ..()
 
 //Called when an atmospherics object is unwrenched while having a large pressure difference
@@ -240,7 +252,12 @@ Pipelines + Other Objects -> Pipe network
 	dir = D
 	initialize_directions = P
 	var/turf/T = loc
-	level = T.intact ? 2 : 1
+	if(!T.transparent_floor)
+		level = T.intact ? 2 : 1
+	else
+		level = 2
+		plane = GAME_PLANE
+		layer = GAS_PIPE_VISIBLE_LAYER
 	add_fingerprint(usr)
 	if(!SSair.initialized) //If there's no atmos subsystem, we can't really initialize pipenets
 		SSair.machinery_to_construct.Add(src)
@@ -337,12 +354,15 @@ Pipelines + Other Objects -> Pipe network
 
 /obj/machinery/atmospherics/proc/add_underlay_adapter(turf/T, obj/machinery/atmospherics/node, direction, icon_connect_type) //modified from add_underlay, does not make exposed underlays
 	if(node)
-		if(T.intact && node.level == 1 && istype(node, /obj/machinery/atmospherics/pipe))
+		if(T.intact && node.level == 1 && istype(node, /obj/machinery/atmospherics/pipe) && !T.transparent_floor)
 			underlays += SSair.icon_manager.get_atmos_icon("underlay", direction, color_cache_name(node), "down" + icon_connect_type)
 		else
 			underlays += SSair.icon_manager.get_atmos_icon("underlay", direction, color_cache_name(node), "intact" + icon_connect_type)
 	else
-		underlays += SSair.icon_manager.get_atmos_icon("underlay", direction, color_cache_name(node), "retracted" + icon_connect_type)
+		if(T.transparent_floor) //we want to keep pipes under transparent floors connected normally
+			underlays += SSair.icon_manager.get_atmos_icon("underlay", direction, color_cache_name(node), "intact" + icon_connect_type)
+		else
+			underlays += SSair.icon_manager.get_atmos_icon("underlay", direction, color_cache_name(node), "retracted" + icon_connect_type)
 
 /obj/machinery/atmospherics/singularity_pull(S, current_size)
 	if(current_size >= STAGE_FIVE)

code/modules/atmospherics/machinery/datum_icon_manager.dm

@@ -159,9 +159,9 @@
 		var/cache_name = state
 
 		for(var/D in GLOB.cardinal)
-			var/image/I = image(icon('icons/atmos/pipe_underlays.dmi', icon_state = state, dir = D))
+			var/image/I = image(icon('icons/atmos/pipe_underlays.dmi', icon_state = state, dir = D), layer = GAS_PIPE_HIDDEN_LAYER)
 			underlays[cache_name + "[D]"] = I
 			for(var/pipe_color in GLOB.pipe_colors)
-				I = image(icon('icons/atmos/pipe_underlays.dmi', icon_state = state, dir = D))
+				I = image(icon('icons/atmos/pipe_underlays.dmi', icon_state = state, dir = D), layer = GAS_PIPE_HIDDEN_LAYER)
 				I.color = GLOB.pipe_colors[pipe_color]
 				underlays[state + "[D]" + "[GLOB.pipe_colors[pipe_color]]"] = I

code/modules/atmospherics/machinery/pipes/cap.dm

@@ -79,7 +79,8 @@
 				break
 
 	var/turf/T = get_turf(src)			// hide if turf is not intact
-	if(!istype(T)) return
+	if(!istype(T) || T.transparent_floor)
+		return
 	hide(T.intact)
 	update_icon()
 

code/modules/atmospherics/machinery/pipes/manifold.dm

@@ -57,6 +57,8 @@
 					node3 = target
 				break
 	var/turf/T = src.loc			// hide if turf is not intact
+	if(T.transparent_floor)
+		return
 	hide(T.intact)
 	update_icon()
 

code/modules/atmospherics/machinery/pipes/manifold4w.dm

@@ -165,7 +165,8 @@
 				break
 
 	var/turf/T = src.loc			// hide if turf is not intact
-	hide(T.intact)
+	if(!T.transparent_floor)
+		hide(T.intact)
 	update_icon()
 
 /obj/machinery/atmospherics/pipe/manifold4w/visible

code/modules/atmospherics/machinery/pipes/simple/pipe_simple.dm

@@ -68,7 +68,8 @@
 							break
 
 		var/turf/T = loc			// hide if turf is not intact
-		hide(T.intact)
+		if(!T.transparent_floor)
+			hide(T.intact)
 		update_icon()
 
 /obj/machinery/atmospherics/pipe/simple/check_pressure(pressure)

code/modules/power/cable.dm

@@ -35,6 +35,7 @@ By design, d1 is the smallest direction and d2 is the highest
 	icon_state = "0-1"
 	var/d1 = 0
 	var/d2 = 1
+	plane = FLOOR_PLANE
 	layer = WIRE_LAYER //Just below unary stuff, which is at 2.45 and above pipes, which are at 2.4
 	color = COLOR_RED
 
@@ -68,9 +69,11 @@ By design, d1 is the smallest direction and d2 is the highest
 	d2 = text2num(copytext( icon_state, dash+1 ))
 
 	var/turf/T = get_turf(src)			// hide if turf is not intact
+	LAZYADD(GLOB.cable_list, src) //add it to the global cable list
+	if(T.transparent_floor)
+		return
 	if(level == 1)
 		hide(T.intact)
-	LAZYADD(GLOB.cable_list, src) //add it to the global cable list
 
 /obj/structure/cable/Destroy()					// called when a cable is deleted
 	if(powernet)
@@ -162,7 +165,8 @@ By design, d1 is the smallest direction and d2 is the highest
 //
 /obj/structure/cable/attackby(obj/item/W, mob/user)
 	var/turf/T = get_turf(src)
-	if(T.intact)
+	if(T.transparent_floor || T.intact)
+		to_chat(user, "<span class='danger'>You can't interact with something that's under the floor!</span>")
 		return
 
 	else if(istype(W, /obj/item/stack/cable_coil))
@@ -204,7 +208,8 @@ By design, d1 is the smallest direction and d2 is the highest
 /obj/structure/cable/wirecutter_act(mob/user, obj/item/I)
 	. = TRUE
 	var/turf/T = get_turf(src)
-	if(T.intact)
+	if(T.transparent_floor || T.intact)
+		to_chat(user, "<span class='danger'>You can't interact with something that's under the floor!</span>")
 		return
 	if(!I.use_tool(src, user, 0, volume = I.tool_volume))
 		return
@@ -703,7 +708,7 @@ GLOBAL_LIST_INIT(cable_coil_recipes, list (new/datum/stack_recipe("cable restrai
 
 	var/turf/T = get_turf(C)
 
-	if(!isturf(T) || T.intact)		// sanity checks, also stop use interacting with T-scanner revealed cable
+	if(!isturf(T) || T.intact || T.transparent_floor)		// sanity checks, also stop use interacting with T-scanner revealed cable
 		return
 
 	if(get_dist(C, user) > 1)		// make sure it's close enough
@@ -719,7 +724,7 @@ GLOBAL_LIST_INIT(cable_coil_recipes, list (new/datum/stack_recipe("cable restrai
 
 	// one end of the clicked cable is pointing towards us
 	if(C.d1 == dirn || C.d2 == dirn)
-		if(U.intact)						// can't place a cable if the floor is complete
+		if(U.intact || U.transparent_floor)						// can't place a cable if the floor is complete
 			to_chat(user, "<span class='warning'>You can't lay cable there unless the floor tiles are removed!</span>")
 			return
 		else

code/modules/power/terminal.dm

@@ -15,6 +15,8 @@
 /obj/machinery/power/terminal/Initialize(mapload)
 	. = ..()
 	var/turf/T = get_turf(src)
+	if(T.transparent_floor)
+		return
 	if(level == 1)
 		hide(T.intact)
 

code/modules/recycling/disposal.dm

@@ -691,6 +691,7 @@
 	armor = list("melee" = 25, "bullet" = 10, "laser" = 10, "energy" = 100, "bomb" = 0, "bio" = 100, "rad" = 100, "fire" = 90, "acid" = 30)
 	damage_deflection = 10
 	flags_2 = RAD_PROTECT_CONTENTS_2 | RAD_NO_CONTAMINATE_2
+	plane = FLOOR_PLANE
 	layer = DISPOSAL_PIPE_LAYER				// slightly lower than wires and other pipes
 	var/base_icon_state	// initial icon state on map
 
@@ -757,6 +758,9 @@
 // update the icon_state to reflect hidden status
 /obj/structure/disposalpipe/proc/update()
 	var/turf/T = get_turf(src)
+	if(T.transparent_floor)
+		update_icon()
+		return
 	hide(T.intact && !istype(T, /turf/space))	// space never hides pipes
 	update_icon()
 
@@ -889,15 +893,20 @@
 
 /obj/structure/disposalpipe/attackby(obj/item/I, mob/user, params)
 	var/turf/T = get_turf(src)
-	if(T.intact)
-		return		// prevent interaction with T-scanner revealed pipes
+	if(T.intact || T.transparent_floor)
+		to_chat(user, "<span class='danger'>You can't interact with something that's under the floor!</span>")
+		return 		// prevent interaction with T-scanner revealed pipes and pipes under glass
 
 	add_fingerprint(user)
 
 /obj/structure/disposalpipe/welder_act(mob/user, obj/item/I)
 	. = TRUE
+	var/turf/T = get_turf(src)
 	if(!I.tool_use_check(user, 0))
 		return
+	if(T.transparent_floor)
+		to_chat(user, "<span class='danger'>You can't interact with something that's under the floor!</span>")
+		return
 	WELDER_ATTEMPT_SLICING_MESSAGE
 	if(!I.use_tool(src, user, 30, volume = I.tool_volume))
 		return
@@ -1201,7 +1210,7 @@
 		return
 
 	var/turf/T = src.loc
-	if(T.intact)
+	if(T.intact || T.transparent_floor)
 		return		// prevent interaction with T-scanner revealed pipes
 	src.add_fingerprint(user)
 

paradise.dme

@@ -1151,6 +1151,7 @@
 #include "code\game\turfs\simulated\floor\misc_floor.dm"
 #include "code\game\turfs\simulated\floor\plasteel_floor.dm"
 #include "code\game\turfs\simulated\floor\plating.dm"
+#include "code\game\turfs\simulated\floor\transparent.dm"
 #include "code\game\turfs\space\space.dm"
 #include "code\game\turfs\space\transit.dm"
 #include "code\game\verbs\ooc.dm"