NewPipe

-Supply and scrubber pipes can be run in parallel without connecting to each other
-Supply pipes will only connect to supply pipes, vents and Universal Pipe Adapters(UPAs)
-Scrubber pipes will only connect to scrubber pipes, scrubbers and UPAs
-Supply and scrubber pipes are offset along the x and y axes to prevent sprite overlap
-UPAs will connect to regular, scrubber and supply pipes, as well as anything else that connects to a regular pipe. UPAs will be used to interface between the supply/scrubber loops and atmos

code/ATMOSPHERICS/_atmos_setup.dm

@@ -1,7 +1,7 @@
 //--------------------------------------------
 // Pipe colors
 //
-// Add them here and to the pipe_colors list 
+// Add them here and to the pipe_colors list
 //  to automatically add them to all relevant
 //  atmospherics devices.
 //--------------------------------------------
@@ -37,11 +37,12 @@ var/global/list/pipe_colors = list("grey" = PIPE_COLOR_GREY, "red" = PIPE_COLOR_
 	var/list/pipe_icons[]
 	var/list/manifold_icons[]
 	var/list/device_icons[]
-	var/list/underlays_down[]
-	var/list/underlays_exposed[]
-	var/list/underlays_intact[]
-	var/list/pipe_underlays_exposed[]
-	var/list/pipe_underlays_intact[]
+	var/list/underlays[]
+	//var/list/underlays_down[]
+	//var/list/underlays_exposed[]
+	//var/list/underlays_intact[]
+	//var/list/pipe_underlays_exposed[]
+	//var/list/pipe_underlays_intact[]
 	var/list/omni_icons[]
 
 /datum/pipe_icon_manager/New()
@@ -64,16 +65,18 @@ var/global/list/pipe_colors = list("grey" = PIPE_COLOR_GREY, "red" = PIPE_COLOR_
 			return device_icons[state]
 		if("omni")
 			return omni_icons[state]
-		if("underlay_intact")
-			return underlays_intact[dir + color]
-		if("underlay_exposed")
-			return underlays_exposed[dir + color]
-		if("underlay_down")
-			return underlays_down[dir + color]
-		if("pipe_underlay_exposed")
-			return pipe_underlays_exposed[dir + color]
-		if("pipe_underlay_intact")
-			return pipe_underlays_intact[dir + color]
+		if("underlay")
+			return underlays[state + dir + color]
+		//if("underlay_intact")
+		//	return underlays_intact[state + dir + color]
+	//	if("underlay_exposed")
+	//		return underlays_exposed[state + dir + color]
+	//	if("underlay_down")
+	//		return underlays_down[state + dir + color]
+	//	if("pipe_underlay_exposed")
+	//		return pipe_underlays_exposed[state + dir + color]
+	//	if("pipe_underlay_intact")
+	//		return pipe_underlays_intact[state + dir + color]
 
 /datum/pipe_icon_manager/proc/check_icons()
 	if(!pipe_icons)
@@ -84,13 +87,14 @@ var/global/list/pipe_colors = list("grey" = PIPE_COLOR_GREY, "red" = PIPE_COLOR_
 		gen_device_icons()
 	if(!omni_icons)
 		gen_omni_icons()
-	if(!underlays_intact || !underlays_down || !underlays_exposed || !pipe_underlays_exposed || !pipe_underlays_intact)
+	//if(!underlays_intact || !underlays_down || !underlays_exposed || !pipe_underlays_exposed || !pipe_underlays_intact)
+	if(!underlays)
 		gen_underlay_icons()
 
 /datum/pipe_icon_manager/proc/gen_pipe_icons()
 	if(!pipe_icons)
 		pipe_icons = new()
-	
+
 	var/icon/pipe = new('icons/atmos/pipes.dmi')
 
 	for(var/state in pipe.IconStates())
@@ -109,7 +113,7 @@ var/global/list/pipe_colors = list("grey" = PIPE_COLOR_GREY, "red" = PIPE_COLOR_
 /datum/pipe_icon_manager/proc/gen_manifold_icons()
 	if(!manifold_icons)
 		manifold_icons = new()
-	
+
 	var/icon/pipe = new('icons/atmos/manifold.dmi')
 
 	for(var/state in pipe.IconStates())
@@ -118,7 +122,7 @@ var/global/list/pipe_colors = list("grey" = PIPE_COLOR_GREY, "red" = PIPE_COLOR_
 			manifold_icons[state] = I
 			continue
 
-		if(state == "core" || state == "4way")
+		if(findtext(state, "core") || findtext(state, "4way"))
 			var/image/I = image('icons/atmos/manifold.dmi', icon_state = state)
 			manifold_icons[state] = I
 			for(var/pipe_color in pipe_colors)
@@ -129,7 +133,7 @@ var/global/list/pipe_colors = list("grey" = PIPE_COLOR_GREY, "red" = PIPE_COLOR_
 /datum/pipe_icon_manager/proc/gen_device_icons()
 	if(!device_icons)
 		device_icons = new()
-	
+
 	var/icon/device
 
 	device = new('icons/atmos/vent_pump.dmi')
@@ -147,14 +151,37 @@ var/global/list/pipe_colors = list("grey" = PIPE_COLOR_GREY, "red" = PIPE_COLOR_
 /datum/pipe_icon_manager/proc/gen_omni_icons()
 	if(!omni_icons)
 		omni_icons = new()
-		
+
 	var/icon/omni = new('icons/atmos/omni_devices.dmi')
-	
+
 	for(var/state in omni.IconStates())
 		if(!state || findtext(state, "map"))
 			continue
 		omni_icons[state] = image('icons/atmos/omni_devices.dmi', icon_state = state)
 
+
+/datum/pipe_icon_manager/proc/gen_underlay_icons()
+
+	if(!underlays)
+		underlays = new()
+
+	var/icon/pipe = new('icons/atmos/pipe_underlays.dmi')
+
+	for(var/state in pipe.IconStates())
+		if(state == "")
+			continue
+
+		var/cache_name = state
+
+		for(var/D in cardinal)
+			var/image/I = image('icons/atmos/pipe_underlays.dmi', icon_state = state, dir = D)
+			underlays[cache_name + "[D]"] = I
+			for(var/pipe_color in pipe_colors)
+				I = image('icons/atmos/pipe_underlays.dmi', icon_state = state, dir = D)
+				I.color = pipe_colors[pipe_color]
+				underlays[state + "[D]" + "[pipe_colors[pipe_color]]"] = I
+
+/*
 /datum/pipe_icon_manager/proc/gen_underlay_icons()
 	if(!underlays_intact)
 		underlays_intact = new()
@@ -168,11 +195,11 @@ var/global/list/pipe_colors = list("grey" = PIPE_COLOR_GREY, "red" = PIPE_COLOR_
 		pipe_underlays_intact = new()
 
 	var/icon/pipe = new('icons/atmos/pipe_underlays.dmi')
-	
+
 	for(var/state in pipe.IconStates())
 		if(state == "")
 			continue
-		
+
 		for(var/D in cardinal)
 			var/image/I = image('icons/atmos/pipe_underlays.dmi', icon_state = state, dir = D)
 			switch(state)
@@ -186,6 +213,26 @@ var/global/list/pipe_colors = list("grey" = PIPE_COLOR_GREY, "red" = PIPE_COLOR_
 					pipe_underlays_exposed["[D]"] = I
 				if("pipe_intact")
 					pipe_underlays_intact["[D]"] = I
+				if("intact-supply")
+					underlays_intact["[D]"] = I
+				if("exposed-supply")
+					underlays_exposed["[D]"] = I
+				if("down-supply")
+					underlays_down["[D]"] = I
+				if("pipe_exposed-supply")
+					pipe_underlays_exposed["[D]"] = I
+				if("pipe_intact-supply")
+					pipe_underlays_intact["[D]"] = I
+				if("intact-scrubbers")
+					underlays_intact["[D]"] = I
+				if("exposed-scrubbers")
+					underlays_exposed["[D]"] = I
+				if("down-scrubbers")
+					underlays_down["[D]"] = I
+				if("pipe_exposed-scrubbers")
+					pipe_underlays_exposed["[D]"] = I
+				if("pipe_intact-scrubbers")
+					pipe_underlays_intact["[D]"] = I
 			for(var/pipe_color in pipe_colors)
 				I = image('icons/atmos/pipe_underlays.dmi', icon_state = state, dir = D)
 				I.color = pipe_colors[pipe_color]
@@ -199,4 +246,26 @@ var/global/list/pipe_colors = list("grey" = PIPE_COLOR_GREY, "red" = PIPE_COLOR_
 					if("pipe_exposed")
 						pipe_underlays_exposed["[D]" + pipe_colors[pipe_color]] = I
 					if("pipe_intact")
-						pipe_underlays_intact["[D]" + pipe_colors[pipe_color]] = I
+						pipe_underlays_intact["[D]" + pipe_colors[pipe_color]] = I
+					if("intact-supply")
+						underlays_intact["[D]" + pipe_colors[pipe_color]] = I
+					if("exposed-supply")
+						underlays_exposed["[D]" + pipe_colors[pipe_color]] = I
+					if("down-supply")
+						underlays_down["[D]" + pipe_colors[pipe_color]] = I
+					if("pipe_exposed-supply")
+						pipe_underlays_exposed["[D]" + pipe_colors[pipe_color]] = I
+					if("pipe_intact-supply")
+						pipe_underlays_intact["[D]" + pipe_colors[pipe_color]] = I
+					if("intact-scrubbers")
+						underlays_intact["[D]" + pipe_colors[pipe_color]] = I
+					if("exposed-scrubbers")
+						underlays_exposed["[D]" + pipe_colors[pipe_color]] = I
+					if("down-scrubbers")
+						underlays_down["[D]" + pipe_colors[pipe_color]] = I
+					if("pipe_exposed-scrubbers")
+						pipe_underlays_exposed["[D]" + pipe_colors[pipe_color]] = I
+					if("pipe_intact-scrubbers")
+						pipe_underlays_intact["[D]" + pipe_colors[pipe_color]] = I
+
+*/

code/ATMOSPHERICS/atmospherics.dm

@@ -16,19 +16,25 @@ Pipelines + Other Objects -> Pipe network
 	power_channel = ENVIRON
 	var/nodealert = 0
 
+	layer = 2.4 //under wires with their 2.44
+
+	var/connect_types[] = list(1) //1=regular, 2=supply, 3=scrubber
+	var/connected_to = 1 //same as above, currently not used for anything
+	var/icon_connect_type = "" //"-supply" or "-scrubbers"
+
 	var/initialize_directions = 0
 	var/pipe_color
-	
+
 	var/global/datum/pipe_icon_manager/icon_manager
 
 /obj/machinery/atmospherics/New()
 	if(!icon_manager)
 		icon_manager = new()
-	
+
 	if(!pipe_color)
 		pipe_color = color
 	color = null
-	
+
 	if(!pipe_color_check(pipe_color))
 		pipe_color = null
 	..()
@@ -38,14 +44,17 @@ Pipelines + Other Objects -> Pipe network
 		return
 	..()
 
-/obj/machinery/atmospherics/proc/add_underlay(var/turf/T, var/obj/machinery/atmospherics/node, var/direction)
+/obj/machinery/atmospherics/proc/add_underlay(var/turf/T, var/obj/machinery/atmospherics/node, var/direction, var/icon_connect_type)
 	if(node)
 		if(T.intact && node.level == 1 && istype(node, /obj/machinery/atmospherics/pipe))
-			underlays += icon_manager.get_atmos_icon("underlay_down", direction, color_cache_name(node))
+			//underlays += icon_manager.get_atmos_icon("underlay_down", direction, color_cache_name(node))
+			underlays += icon_manager.get_atmos_icon("underlay", direction, color_cache_name(node), "down" + icon_connect_type)
 		else
-			underlays += icon_manager.get_atmos_icon("underlay_intact", direction, color_cache_name(node))
+			//underlays += icon_manager.get_atmos_icon("underlay_intact", direction, color_cache_name(node))
+			underlays += icon_manager.get_atmos_icon("underlay", direction, color_cache_name(node), "intact" + icon_connect_type)
 	else
-		underlays += icon_manager.get_atmos_icon("underlay_exposed", direction, pipe_color)
+		//underlays += icon_manager.get_atmos_icon("underlay_exposed", direction, pipe_color)
+		underlays += 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())
@@ -53,20 +62,45 @@ Pipelines + Other Objects -> Pipe network
 	else
 		return 0
 
+obj/machinery/atmospherics/proc/check_connect_types(obj/machinery/atmospherics/atmos1, obj/machinery/atmospherics/atmos2)
+	var/i
+	var/list1[] = atmos1.connect_types
+	var/list2[] = atmos2.connect_types
+	for(i=1,i<=list1.len,i++)
+		var/j
+		for(j=1,j<=list2.len,j++)
+			if(list1[i] == list2[j])
+				var/n = list1[i]
+				return n
+	return 0
+
+obj/machinery/atmospherics/proc/check_connect_types_construction(obj/machinery/atmospherics/atmos1, obj/item/pipe/pipe2)
+	var/i
+	var/list1[] = atmos1.connect_types
+	var/list2[] = pipe2.connect_types
+	for(i=1,i<=list1.len,i++)
+		var/j
+		for(j=1,j<=list2.len,j++)
+			if(list1[i] == list2[j])
+				var/n = list1[i]
+				return n
+	return 0
+
+
 /obj/machinery/atmospherics/proc/check_icon_cache(var/safety = 0)
 	if(!istype(icon_manager))
 		if(!safety) //to prevent infinite loops
 			icon_manager = new()
 			check_icon_cache(1)
 		return 0
-	
+
 	return 1
 
 /obj/machinery/atmospherics/proc/color_cache_name(var/obj/machinery/atmospherics/node)
 	//Don't use this for standard pipes
 	if(!istype(node))
 		return null
-	
+
 	return node.pipe_color
 
 /obj/machinery/atmospherics/process()

code/ATMOSPHERICS/components/binary_devices/binary_atmos_base.dm

@@ -67,13 +67,21 @@ obj/machinery/atmospherics/binary
 
 		for(var/obj/machinery/atmospherics/target in get_step(src,node1_connect))
 			if(target.initialize_directions & get_dir(target,src))
-				node1 = target
-				break
+				var/c = check_connect_types(target,src)
+				if (c)
+					target.connected_to = c
+					src.connected_to = c
+					node1 = target
+					break
 
 		for(var/obj/machinery/atmospherics/target in get_step(src,node2_connect))
 			if(target.initialize_directions & get_dir(target,src))
-				node2 = target
-				break
+				var/c = check_connect_types(target,src)
+				if (c)
+					target.connected_to = c
+					src.connected_to = c
+					node2 = target
+					break
 
 		update_icon()
 		update_underlays()

code/ATMOSPHERICS/components/omni_devices/omni_base.dm

@@ -28,7 +28,7 @@
 /obj/machinery/atmospherics/omni/New()
 	..()
 	icon_state = "base"
-	
+
 	ports = new()
 	for(var/d in cardinal)
 		var/datum/omni_port/new_port = new(src, d)
@@ -44,7 +44,7 @@
 		if(new_port.mode > 0)
 			initialize_directions |= d
 		ports += new_port
-	
+
 	build_icons()
 
 /obj/machinery/atmospherics/omni/update_icon()
@@ -173,7 +173,7 @@
 			if(ATM_O2 to ATM_N2O)
 				ic_on += "_filter"
 				ic_off += "_out"
-		
+
 		ic_on = icon_manager.get_atmos_icon("omni", , , ic_on)
 		ic_off = icon_manager.get_atmos_icon("omni", , , ic_off)
 
@@ -238,8 +238,12 @@
 			continue
 		for(var/obj/machinery/atmospherics/target in get_step(src, P.dir))
 			if(target.initialize_directions & get_dir(target,src))
-				P.node = target
-				break
+				var/c = check_connect_types(target,src)
+				if (c)
+					target.connected_to = c
+					src.connected_to = c
+					P.node = target
+					break
 
 	for(var/datum/omni_port/P in ports)
 		P.update = 1
@@ -285,7 +289,7 @@
 			P.node = null
 			P.update = 1
 			break
-	
+
 	update_ports()
 
 	return null

code/ATMOSPHERICS/components/portables_connector.dm

@@ -81,8 +81,12 @@
 
 	for(var/obj/machinery/atmospherics/target in get_step(src,node_connect))
 		if(target.initialize_directions & get_dir(target,src))
-			node = target
-			break
+			var/c = check_connect_types(target,src)
+			if (c)
+				target.connected_to = c
+				src.connected_to = c
+				node = target
+				break
 
 	update_icon()
 	update_underlays()
@@ -123,7 +127,7 @@
 	if(reference==node)
 		del(network)
 		node = null
-	
+
 	update_underlays()
 
 	return null

code/ATMOSPHERICS/components/trinary_devices/trinary_base.dm

@@ -2,7 +2,7 @@ obj/machinery/atmospherics/trinary
 	dir = SOUTH
 	initialize_directions = SOUTH|NORTH|WEST
 	use_power = 1
-	
+
 	var/on = 0
 
 	var/datum/gas_mixture/air1
@@ -82,18 +82,29 @@ obj/machinery/atmospherics/trinary
 
 		for(var/obj/machinery/atmospherics/target in get_step(src,node1_connect))
 			if(target.initialize_directions & get_dir(target,src))
-				node1 = target
-				break
+				var/c = check_connect_types(target,src)
+				if (c)
+					target.connected_to = c
+					src.connected_to = c
+					node1 = target
+					break
 
 		for(var/obj/machinery/atmospherics/target in get_step(src,node2_connect))
 			if(target.initialize_directions & get_dir(target,src))
-				node2 = target
-				break
-
+				var/c = check_connect_types(target,src)
+				if (c)
+					target.connected_to = c
+					src.connected_to = c
+					node2 = target
+					break
 		for(var/obj/machinery/atmospherics/target in get_step(src,node3_connect))
 			if(target.initialize_directions & get_dir(target,src))
-				node3 = target
-				break
+				var/c = check_connect_types(target,src)
+				if (c)
+					target.connected_to = c
+					src.connected_to = c
+					node3 = target
+					break
 
 		update_icon()
 		update_underlays()
@@ -163,7 +174,7 @@ obj/machinery/atmospherics/trinary
 		else if(reference==node3)
 			del(network3)
 			node3 = null
-		
+
 		update_underlays()
 
 		return null

code/ATMOSPHERICS/components/tvalve.dm

@@ -37,12 +37,12 @@
 		if(!istype(T))
 			return
 		add_underlay(T, node1, turn(dir, -180))
-		
+
 		if(istype(src, /obj/machinery/atmospherics/tvalve/mirrored))
 			add_underlay(T, node2, turn(dir, 90))
 		else
 			add_underlay(T, node2, turn(dir, -90))
-		
+
 		add_underlay(T, node3, dir)
 
 /obj/machinery/atmospherics/tvalve/hide(var/i)
@@ -202,17 +202,29 @@
 
 	for(var/obj/machinery/atmospherics/target in get_step(src,node1_dir))
 		if(target.initialize_directions & get_dir(target,src))
-			node1 = target
-			break
+			var/c = check_connect_types(target,src)
+			if (c)
+				target.connected_to = c
+				src.connected_to = c
+				node1 = target
+				break
 	for(var/obj/machinery/atmospherics/target in get_step(src,node2_dir))
 		if(target.initialize_directions & get_dir(target,src))
-			node2 = target
-			break
+			var/c = check_connect_types(target,src)
+			if (c)
+				target.connected_to = c
+				src.connected_to = c
+				node2 = target
+				break
 	for(var/obj/machinery/atmospherics/target in get_step(src,node3_dir))
 		if(target.initialize_directions & get_dir(target,src))
-			node3 = target
-			break
-	
+			var/c = check_connect_types(target,src)
+			if (c)
+				target.connected_to = c
+				src.connected_to = c
+				node3 = target
+				break
+
 	update_icon()
 	update_underlays()
 
@@ -407,7 +419,7 @@
 		if(target.initialize_directions & get_dir(target,src))
 			node3 = target
 			break
-	
+
 	update_icon()
 	update_underlays()
 

code/ATMOSPHERICS/components/unary/unary_base.dm

@@ -1,7 +1,7 @@
 /obj/machinery/atmospherics/unary
 	dir = SOUTH
 	initialize_directions = SOUTH
-	layer = TURF_LAYER+0.1
+	//layer = TURF_LAYER+0.1
 
 	var/datum/gas_mixture/air_contents
 
@@ -46,8 +46,12 @@
 
 		for(var/obj/machinery/atmospherics/target in get_step(src,node_connect))
 			if(target.initialize_directions & get_dir(target,src))
-				node = target
-				break
+				var/c = check_connect_types(target,src)
+				if (c)
+					target.connected_to = c
+					src.connected_to = c
+					node = target
+					break
 
 		update_icon()
 		update_underlays()

code/ATMOSPHERICS/components/unary/vent_pump.dm

@@ -18,7 +18,9 @@
 	use_power = 1
 	idle_power_usage = 150		//internal circuitry, friction losses and stuff
 	active_power_usage = 7500	//This also doubles as a measure of how powerful the pump is, in Watts. 7500 W ~ 10 HP
-	
+
+	connect_types = list(1,2) //connects to regular and supply pipes
+
 	var/area/initial_loc
 	level = 1
 	var/area_uid
@@ -64,7 +66,7 @@
 /obj/machinery/atmospherics/unary/vent_pump/New()
 	..()
 	air_contents.volume = ATMOS_DEFAULT_VOLUME_PUMP
-	
+
 	icon = null
 	initial_loc = get_area(loc)
 	if (initial_loc.master)
@@ -87,13 +89,13 @@
 	air_contents.volume = ATMOS_DEFAULT_VOLUME_PUMP + 800
 
 /obj/machinery/atmospherics/unary/vent_pump/update_icon(var/safety = 0)
-	if(!check_icon_cache())
+	if(!check_icon_cache())
 		return
 	if (!node)
 		on = 0
 
 	overlays.Cut()
-	
+
 	var/vent_icon = "vent"
 
 	var/turf/T = get_turf(src)
@@ -102,7 +104,7 @@
 
 	if(T.intact && node && node.level == 1 && istype(node, /obj/machinery/atmospherics/pipe))
 		vent_icon += "h"
-		
+
 	if(welded)
 		vent_icon += "weld"
 	else if(!powered())
@@ -121,7 +123,10 @@
 		if(T.intact && node && node.level == 1 && istype(node, /obj/machinery/atmospherics/pipe))
 			return
 		else
-			add_underlay(T, node, dir)
+			if(node)
+				add_underlay(T, node, dir, node.icon_connect_type)
+			else
+				add_underlay(T,, dir)
 
 /obj/machinery/atmospherics/unary/vent_pump/hide()
 	update_icon()
@@ -138,7 +143,7 @@
 
 /obj/machinery/atmospherics/unary/vent_pump/process()
 	..()
-	
+
 	if (!node)
 		on = 0
 	if(!can_pump())
@@ -150,27 +155,27 @@
 	var/datum/gas_mixture/environment = loc.return_air()
 
 	var/power_draw = -1
-	
+
 	//Figure out the target pressure difference
 	var/pressure_delta = get_pressure_delta(environment)
 	//src.visible_message("DEBUG >>> [src]: pressure_delta = [pressure_delta]")
 
 	if((environment.temperature || air_contents.temperature) && pressure_delta > 0.5)
-		if(pump_direction) //internal -> external	
+		if(pump_direction) //internal -> external
 			var/output_volume = environment.volume * environment.group_multiplier
 			var/air_temperature = environment.temperature? environment.temperature : air_contents.temperature
 			var/transfer_moles = pressure_delta*output_volume/(air_temperature * R_IDEAL_GAS_EQUATION)
 			//src.visible_message("DEBUG >>> [src]: output_volume = [output_volume]L; air_temperature = [air_temperature]K; transfer_moles = [transfer_moles] mol")
-			
+
 			power_draw = pump_gas(src, air_contents, environment, transfer_moles, active_power_usage)
 		else //external -> internal
 			var/output_volume = air_contents.volume + (network? network.volume : 0)
 			var/air_temperature = air_contents.temperature? air_contents.temperature : environment.temperature
 			var/transfer_moles = pressure_delta*output_volume/(air_temperature * R_IDEAL_GAS_EQUATION)
-			
+
 			//limit flow rate from turfs
 			transfer_moles = min(transfer_moles, environment.total_moles*MAX_SIPHON_FLOWRATE/environment.volume)	//group_multiplier gets divided out here
-			
+
 			power_draw = pump_gas(src, environment, air_contents, transfer_moles, active_power_usage)
 
 	if (power_draw < 0)
@@ -182,13 +187,13 @@
 		last_power_draw = handle_power_draw(power_draw)
 		if(network)
 			network.update = 1
-	
+
 	return 1
 
 /obj/machinery/atmospherics/unary/vent_pump/proc/get_pressure_delta(datum/gas_mixture/environment)
 	var/pressure_delta = DEFAULT_PRESSURE_DELTA
 	var/environment_pressure = environment.return_pressure()
-	
+
 	if(pump_direction) //internal -> external
 		if(pressure_checks & PRESSURE_CHECK_EXTERNAL)
 			pressure_delta = min(pressure_delta, external_pressure_bound - environment_pressure) //increasing the pressure here
@@ -199,7 +204,7 @@
 			pressure_delta = min(pressure_delta, environment_pressure - external_pressure_bound) //decreasing the pressure here
 		if(pressure_checks & PRESSURE_CHECK_INTERNAL)
 			pressure_delta = min(pressure_delta, internal_pressure_bound - air_contents.return_pressure()) //increasing the pressure here
-	
+
 	return pressure_delta
 
 //Radio remote control
@@ -282,7 +287,7 @@
 
 	if(signal.data["checks_toggle"] != null)
 		pressure_checks = (pressure_checks?0:3)
-
+
 	if(signal.data["direction"] != null)
 		pump_direction = text2num(signal.data["direction"])
 
@@ -325,7 +330,7 @@
 	if(signal.data["init"] != null)
 		name = signal.data["init"]
 		return
-
+
 	if(signal.data["status"] != null)
 		spawn(2)
 			broadcast_status()

code/ATMOSPHERICS/components/unary/vent_scrubber.dm

@@ -9,6 +9,8 @@
 	active_power_usage = 7500	//This also doubles as a measure of how powerful the pump is, in Watts. 7500 W ~ 10 HP
 	var/last_power_draw = 0
 
+	connect_types = list(1,3) //connects to regular and scrubber pipes
+
 	level = 1
 
 	var/area/initial_loc
@@ -29,7 +31,7 @@
 /obj/machinery/atmospherics/unary/vent_scrubber/New()
 	..()
 	air_contents.volume = ATMOS_DEFAULT_VOLUME_FILTER
-	
+
 	icon = null
 	initial_loc = get_area(loc)
 	if (initial_loc.master)
@@ -70,7 +72,10 @@
 		if(T.intact && node && node.level == 1 && istype(node, /obj/machinery/atmospherics/pipe))
 			return
 		else
-			add_underlay(T, node, dir)
+			if(node)
+				add_underlay(T, node, dir, node.icon_connect_type)
+			else
+				add_underlay(T,, dir)
 
 /obj/machinery/atmospherics/unary/vent_scrubber/proc/set_frequency(new_frequency)
 	radio_controller.remove_object(src, frequency)
@@ -130,7 +135,7 @@
 	if(scrubbing)
 		//limit flow rate from turfs
 		var/transfer_moles = min(environment.total_moles, environment.total_moles*MAX_SCRUBBER_FLOWRATE/environment.volume)	//group_multiplier gets divided out here
-		
+
 		power_draw = scrub_gas(src, scrubbing_gas, environment, air_contents, transfer_moles, active_power_usage)
 	else //Just siphon all air
 		//limit flow rate from turfs
@@ -145,14 +150,15 @@
 		last_flow_rate = 0
 	else
 		last_power_draw = handle_power_draw(power_draw)
-	
+
 	if(network)
 		network.update = 1
-	
+
 	return 1
 
 /obj/machinery/atmospherics/unary/vent_scrubber/hide(var/i) //to make the little pipe section invisible, the icon changes.
 	update_icon()
+	update_underlays()
 
 /obj/machinery/atmospherics/unary/vent_scrubber/receive_signal(datum/signal/signal)
 	if(stat & (NOPOWER|BROKEN))
@@ -186,7 +192,7 @@
 		scrubbing = !scrubbing
 
 	var/list/toggle = list()
-	
+
 	if(!isnull(signal.data["co2_scrub"]) && text2num(signal.data["co2_scrub"]) != ("carbon_dioxide" in scrubbing_gas))
 		toggle += "carbon_dioxide"
 	else if(signal.data["toggle_co2_scrub"])

code/ATMOSPHERICS/components/valve.dm

@@ -163,15 +163,23 @@
 
 	for(var/obj/machinery/atmospherics/target in get_step(src,node1_dir))
 		if(target.initialize_directions & get_dir(target,src))
-			node1 = target
-			break
+			var/c = check_connect_types(target,src)
+			if (c)
+				target.connected_to = c
+				src.connected_to = c
+				node1 = target
+				break
 	for(var/obj/machinery/atmospherics/target in get_step(src,node2_dir))
 		if(target.initialize_directions & get_dir(target,src))
-			node2 = target
-			break
+			var/c = check_connect_types(target,src)
+			if (c)
+				target.connected_to = c
+				src.connected_to = c
+				node2 = target
+				break
 
 	build_network()
-	
+
 	update_icon()
 	update_underlays()
 
@@ -230,7 +238,7 @@
 	name = "digital valve"
 	desc = "A digitally controlled valve."
 	icon = 'icons/atmos/digital_valve.dmi'
-	
+
 	var/frequency = 0
 	var/id = null
 	var/datum/radio_frequency/radio_connection

code/ATMOSPHERICS/pipes.dm

@@ -6,7 +6,7 @@
 	var/volume = 0
 	force = 20
 
-	layer = 2.4 //under wires with their 2.44
+	//layer = 2.4 //under wires with their 2.44
 	use_power = 0
 
 	var/alert_pressure = 80*ONE_ATMOSPHERE
@@ -105,6 +105,7 @@
 	pipe_color = new_color
 	update_icon()
 
+/*
 /obj/machinery/atmospherics/pipe/add_underlay(var/obj/machinery/atmospherics/node, var/direction)
 	if(istype(src, /obj/machinery/atmospherics/pipe/tank))	//todo: move tanks to unary devices
 		return ..()
@@ -117,6 +118,7 @@
 		underlays += icon_manager.get_atmos_icon("pipe_underlay_exposed", direction, pipe_color)
 	else
 		return null
+*/
 
 /obj/machinery/atmospherics/pipe/color_cache_name(var/obj/machinery/atmospherics/node)
 	if(istype(src, /obj/machinery/atmospherics/pipe/tank))
@@ -134,7 +136,7 @@
 
 /obj/machinery/atmospherics/pipe/simple
 	icon = 'icons/atmos/pipes.dmi'
-	icon_state = ""
+	icon_state = ""
 	name = "pipe"
 	desc = "A one meter section of regular pipe"
 
@@ -253,9 +255,9 @@
 				del(meter)
 		del(src)
 	else if(node1 && node2)
-		overlays += icon_manager.get_atmos_icon("pipe", , pipe_color, "intact")
+		overlays += icon_manager.get_atmos_icon("pipe", , pipe_color, "intact" + icon_connect_type)
 	else
-		overlays += icon_manager.get_atmos_icon("pipe", , pipe_color, "exposed[node1?1:0][node2?1:0]")
+		overlays += icon_manager.get_atmos_icon("pipe", , pipe_color, "exposed[node1?1:0][node2?1:0]" + icon_connect_type)
 
 /obj/machinery/atmospherics/pipe/simple/update_underlays()
 	return
@@ -274,12 +276,20 @@
 
 	for(var/obj/machinery/atmospherics/target in get_step(src,node1_dir))
 		if(target.initialize_directions & get_dir(target,src))
-			node1 = target
-			break
+			var/c = check_connect_types(target,src)
+			if (c)
+				target.connected_to = c
+				src.connected_to = c
+				node1 = target
+				break
 	for(var/obj/machinery/atmospherics/target in get_step(src,node2_dir))
 		if(target.initialize_directions & get_dir(target,src))
-			node2 = target
-			break
+			var/c = check_connect_types(target,src)
+			if (c)
+				target.connected_to = c
+				src.connected_to = c
+				node2 = target
+				break
 
 	if(!node1 && !node2)
 		del(src)
@@ -305,16 +315,26 @@
 
 	return null
 
-/obj/machinery/atmospherics/pipe/simple/visible
-	icon_state = "intact"
+/obj/machinery/atmospherics/pipe/simple/visible
+	icon_state = "intact"
 	level = 2
 
 /obj/machinery/atmospherics/pipe/simple/visible/scrubbers
 	name = "Scrubbers pipe"
+	desc = "A one meter section of scrubbers pipe"
+	icon = 'icons/obj/pipes_scrubbers.dmi'
+	connect_types = list(3)
+	layer = 2.38
+	icon_connect_type = "-scrubbers"
 	color = PIPE_COLOR_RED
 
 /obj/machinery/atmospherics/pipe/simple/visible/supply
 	name = "Air supply pipe"
+	desc = "A one meter section of supply pipe"
+	icon = 'icons/obj/pipes_supply.dmi'
+	connect_types = list(2)
+	layer = 2.39
+	icon_connect_type = "-supply"
 	color = PIPE_COLOR_BLUE
 
 /obj/machinery/atmospherics/pipe/simple/visible/yellow
@@ -329,19 +349,131 @@
 /obj/machinery/atmospherics/pipe/simple/visible/purple
 	color = PIPE_COLOR_PURPLE
 
-/obj/machinery/atmospherics/pipe/simple/hidden
-	icon_state = "intact"
+/obj/machinery/atmospherics/pipe/simple/hidden
+	icon_state = "intact"
 	level = 1
 	alpha = 128		//set for the benefit of mapping - this is reset to opaque when the pipe is spawned in game
 
 /obj/machinery/atmospherics/pipe/simple/hidden/scrubbers
 	name = "Scrubbers pipe"
+	desc = "A one meter section of scrubbers pipe"
+	icon = 'icons/obj/pipes_scrubbers.dmi'
+	connect_types = list(3)
+	layer = 2.38
+	icon_connect_type = "-scrubbers"
 	color = PIPE_COLOR_RED
 
 /obj/machinery/atmospherics/pipe/simple/hidden/supply
 	name = "Air supply pipe"
+	desc = "A one meter section of supply pipe"
+	icon = 'icons/obj/pipes_supply.dmi'
+	connect_types = list(2)
+	layer = 2.39
+	icon_connect_type = "-supply"
 	color = PIPE_COLOR_BLUE
 
+
+/obj/machinery/atmospherics/pipe/simple/visible/universal
+	name="Universal pipe adapter"
+	desc = "An adapter for regular, supply and scrubbers pipes"
+	connect_types = list(1,2,3)
+	icon_state = "map_universal"
+
+/obj/machinery/atmospherics/pipe/simple/visible/universal/update_icon(var/safety = 0)
+	if(!check_icon_cache())
+		return
+
+	alpha = 255
+
+	overlays.Cut()
+	overlays += icon_manager.get_atmos_icon("pipe", , pipe_color, "universal")
+	underlays.Cut()
+
+	if (node1)
+		universal_underlays(node1)
+		if(node2)
+			universal_underlays(node2)
+		else
+			var/node1_dir = get_dir(node1,src)
+			universal_underlays(,node1_dir)
+	else if (node2)
+		universal_underlays(node2)
+	else
+		universal_underlays(,dir)
+		universal_underlays(dir, -180)
+
+/obj/machinery/atmospherics/pipe/simple/visible/universal/update_underlays()
+	..()
+	update_icon()
+
+
+
+/obj/machinery/atmospherics/pipe/simple/hidden/universal
+	name="Universal pipe adapter"
+	desc = "An adapter for regular, supply and scrubbers pipes"
+	connect_types = list(1,2,3)
+	icon_state = "map_universal"
+
+/obj/machinery/atmospherics/pipe/simple/hidden/universal/update_icon(var/safety = 0)
+	if(!check_icon_cache())
+		return
+
+	alpha = 255
+
+	overlays.Cut()
+	overlays += icon_manager.get_atmos_icon("pipe", , pipe_color, "universal")
+	underlays.Cut()
+
+	if (node1)
+		universal_underlays(node1)
+		if(node2)
+			universal_underlays(node2)
+		else
+			var/node2_dir = turn(get_dir(src,node1),-180)
+			universal_underlays(,node2_dir)
+	else if (node2)
+		universal_underlays(node2)
+		var/node1_dir = turn(get_dir(src,node2),-180)
+		universal_underlays(,node1_dir)
+	else
+		universal_underlays(,dir)
+		universal_underlays(,turn(dir, -180))
+
+/obj/machinery/atmospherics/pipe/simple/hidden/universal/update_underlays()
+	..()
+	update_icon()
+
+/obj/machinery/atmospherics/proc/universal_underlays(var/obj/machinery/atmospherics/node, var/direction)
+	var/turf/T = loc
+	if(node)
+		var/node_dir = get_dir(src,node)
+		if(node.icon_connect_type == "-supply")
+			add_underlay_adapter(T, , node_dir, "")
+			add_underlay_adapter(T, node, node_dir, "-supply")
+			add_underlay_adapter(T, , node_dir, "-scrubbers")
+		else if (node.icon_connect_type == "-scrubbers")
+			add_underlay_adapter(T, , node_dir, "")
+			add_underlay_adapter(T, , node_dir, "-supply")
+			add_underlay_adapter(T, node, node_dir, "-scrubbers")
+		else
+			add_underlay_adapter(T, node, node_dir, "")
+			add_underlay_adapter(T, , node_dir, "-supply")
+			add_underlay_adapter(T, , node_dir, "-scrubbers")
+	else
+		add_underlay_adapter(T, , direction, "-supply")
+		add_underlay_adapter(T, , direction, "-scrubbers")
+		add_underlay_adapter(T, , direction, "")
+
+/obj/machinery/atmospherics/proc/add_underlay_adapter(var/turf/T, var/obj/machinery/atmospherics/node, var/direction, var/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))
+			underlays += icon_manager.get_atmos_icon("underlay", direction, color_cache_name(node), "down" + icon_connect_type)
+		else
+			underlays += icon_manager.get_atmos_icon("underlay", direction, color_cache_name(node), "intact" + icon_connect_type)
+	else
+		underlays += icon_manager.get_atmos_icon("underlay", direction, color_cache_name(node), "retracted" + icon_connect_type)
+
+
 /obj/machinery/atmospherics/pipe/simple/hidden/yellow
 	color = PIPE_COLOR_YELLOW
 
@@ -368,8 +500,8 @@
 
 
 /obj/machinery/atmospherics/pipe/manifold
-	icon = 'icons/atmos/manifold.dmi'
-	icon_state = ""
+	icon = 'icons/atmos/manifold.dmi'
+	icon_state = ""
 	name = "pipe manifold"
 	desc = "A manifold composed of regular pipes"
 
@@ -470,19 +602,25 @@
 		del(src)
 	else
 		overlays.Cut()
-		overlays += icon_manager.get_atmos_icon("manifold", , pipe_color, "core")
-		overlays += icon_manager.get_atmos_icon("manifold", , , "clamps")
+		overlays += icon_manager.get_atmos_icon("manifold", , pipe_color, "core" + icon_connect_type)
+		overlays += icon_manager.get_atmos_icon("manifold", , , "clamps" + icon_connect_type)
 		underlays.Cut()
 
+		var/turf/T = get_turf(src)
 		var/list/directions = list(NORTH, SOUTH, EAST, WEST)
+		var/node1_direction = get_dir(src, node1)
+		var/node2_direction = get_dir(src, node2)
+		var/node3_direction = get_dir(src, node3)
+
 		directions -= dir
 
-		directions -= add_underlay(node1)
-		directions -= add_underlay(node2)
-		directions -= add_underlay(node3)
+		directions -= add_underlay(T,node1,node1_direction,icon_connect_type)
+		directions -= add_underlay(T,node2,node2_direction,icon_connect_type)
+		directions -= add_underlay(T,node3,node3_direction,icon_connect_type)
 
 		for(var/D in directions)
-			add_underlay(,D)
+			add_underlay(T,,D,icon_connect_type)
+
 
 /obj/machinery/atmospherics/pipe/manifold/update_underlays()
 	..()
@@ -495,9 +633,13 @@
 		if(direction&connect_directions)
 			for(var/obj/machinery/atmospherics/target in get_step(src,direction))
 				if(target.initialize_directions & get_dir(target,src))
-					node1 = target
-					connect_directions &= ~direction
-					break
+					var/c = check_connect_types(target,src)
+					if (c)
+						target.connected_to = c
+						src.connected_to = c
+						node1 = target
+						connect_directions &= ~direction
+						break
 			if (node1)
 				break
 
@@ -506,9 +648,13 @@
 		if(direction&connect_directions)
 			for(var/obj/machinery/atmospherics/target in get_step(src,direction))
 				if(target.initialize_directions & get_dir(target,src))
-					node2 = target
-					connect_directions &= ~direction
-					break
+					var/c = check_connect_types(target,src)
+					if (c)
+						target.connected_to = c
+						src.connected_to = c
+						node2 = target
+						connect_directions &= ~direction
+						break
 			if (node2)
 				break
 
@@ -517,9 +663,13 @@
 		if(direction&connect_directions)
 			for(var/obj/machinery/atmospherics/target in get_step(src,direction))
 				if(target.initialize_directions & get_dir(target,src))
-					node3 = target
-					connect_directions &= ~direction
-					break
+					var/c = check_connect_types(target,src)
+					if (c)
+						target.connected_to = c
+						src.connected_to = c
+						node3 = target
+						connect_directions &= ~direction
+						break
 			if (node3)
 				break
 
@@ -529,15 +679,25 @@
 	update_icon()
 
 /obj/machinery/atmospherics/pipe/manifold/visible
-	icon_state = "map"
+	icon_state = "map"
 	level = 2
 
 /obj/machinery/atmospherics/pipe/manifold/visible/scrubbers
-	name = "Scrubbers pipe"
+	name="Scrubbers pipe manifold"
+	desc = "A manifold composed of scrubbers pipes"
+	icon_state = "map-scrubbers"
+	connect_types = list(3)
+	layer = 2.38
+	icon_connect_type = "-scrubbers"
 	color = PIPE_COLOR_RED
 
 /obj/machinery/atmospherics/pipe/manifold/visible/supply
-	name = "Air supply pipe"
+	name="Air supply pipe manifold"
+	desc = "A manifold composed of supply pipes"
+	icon_state = "map-supply"
+	connect_types = list(2)
+	layer = 2.39
+	icon_connect_type = "-supply"
 	color = PIPE_COLOR_BLUE
 
 /obj/machinery/atmospherics/pipe/manifold/visible/yellow
@@ -553,16 +713,26 @@
 	color = PIPE_COLOR_PURPLE
 
 /obj/machinery/atmospherics/pipe/manifold/hidden
-	icon_state = "map"
+	icon_state = "map"
 	level = 1
 	alpha = 128		//set for the benefit of mapping - this is reset to opaque when the pipe is spawned in game
 
 /obj/machinery/atmospherics/pipe/manifold/hidden/scrubbers
-	name = "Scrubbers pipe"
+	name="Scrubbers pipe manifold"
+	desc = "A manifold composed of scrubbers pipes"
+	icon_state = "map-scrubbers"
+	connect_types = list(3)
+	layer = 2.38
+	icon_connect_type = "-scrubbers"
 	color = PIPE_COLOR_RED
 
 /obj/machinery/atmospherics/pipe/manifold/hidden/supply
-	name = "Air supply pipe"
+	name="Air supply pipe manifold"
+	desc = "A manifold composed of supply pipes"
+	icon_state = "map-supply"
+	connect_types = list(2)
+	layer = 2.39
+	icon_connect_type = "-supply"
 	color = PIPE_COLOR_BLUE
 
 /obj/machinery/atmospherics/pipe/manifold/hidden/yellow
@@ -578,8 +748,8 @@
 	color = PIPE_COLOR_PURPLE
 
 /obj/machinery/atmospherics/pipe/manifold4w
-	icon = 'icons/atmos/manifold.dmi'
-	icon_state = ""
+	icon = 'icons/atmos/manifold.dmi'
+	icon_state = ""
 	name = "4-way pipe manifold"
 	desc = "A manifold composed of regular pipes"
 
@@ -675,12 +845,14 @@
 		del(src)
 	else
 		overlays.Cut()
-		overlays += icon_manager.get_atmos_icon("manifold", , pipe_color, "4way")
-		overlays += icon_manager.get_atmos_icon("manifold", , , "clamps_4way")
+		overlays += icon_manager.get_atmos_icon("manifold", , pipe_color, "4way" + icon_connect_type)
+		overlays += icon_manager.get_atmos_icon("manifold", , , "clamps_4way" + icon_connect_type)
 		underlays.Cut()
 
+		/*
 		var/list/directions = list(NORTH, SOUTH, EAST, WEST)
 
+
 		directions -= add_underlay(node1)
 		directions -= add_underlay(node2)
 		directions -= add_underlay(node3)
@@ -688,6 +860,25 @@
 
 		for(var/D in directions)
 			add_underlay(,D)
+		*/
+
+		var/turf/T = get_turf(src)
+		var/list/directions = list(NORTH, SOUTH, EAST, WEST)
+		var/node1_direction = get_dir(src, node1)
+		var/node2_direction = get_dir(src, node2)
+		var/node3_direction = get_dir(src, node3)
+		var/node4_direction = get_dir(src, node4)
+
+		directions -= dir
+
+		directions -= add_underlay(T,node1,node1_direction,icon_connect_type)
+		directions -= add_underlay(T,node2,node2_direction,icon_connect_type)
+		directions -= add_underlay(T,node3,node3_direction,icon_connect_type)
+		directions -= add_underlay(T,node4,node4_direction,icon_connect_type)
+
+		for(var/D in directions)
+			add_underlay(T,,D,icon_connect_type)
+
 
 /obj/machinery/atmospherics/pipe/manifold4w/update_underlays()
 	..()
@@ -702,39 +893,65 @@
 
 	for(var/obj/machinery/atmospherics/target in get_step(src,1))
 		if(target.initialize_directions & 2)
-			node1 = target
-			break
+			var/c = check_connect_types(target,src)
+			if (c)
+				target.connected_to = c
+				src.connected_to = c
+				node1 = target
+				break
 
 	for(var/obj/machinery/atmospherics/target in get_step(src,2))
 		if(target.initialize_directions & 1)
-			node2 = target
-			break
+			var/c = check_connect_types(target,src)
+			if (c)
+				target.connected_to = c
+				src.connected_to = c
+				node2 = target
+				break
 
 	for(var/obj/machinery/atmospherics/target in get_step(src,4))
 		if(target.initialize_directions & 8)
-			node3 = target
-			break
+			var/c = check_connect_types(target,src)
+			if (c)
+				target.connected_to = c
+				src.connected_to = c
+				node3 = target
+				break
 
 	for(var/obj/machinery/atmospherics/target in get_step(src,8))
 		if(target.initialize_directions & 4)
-			node4 = target
-			break
+			var/c = check_connect_types(target,src)
+			if (c)
+				target.connected_to = c
+				src.connected_to = c
+				node4 = target
+				break
 
 	var/turf/T = get_turf(src)
 	if(istype(T))
 		hide(T.intact)
 	update_icon()
 
-/obj/machinery/atmospherics/pipe/manifold4w/visible
-	icon_state = "map_4way"
+/obj/machinery/atmospherics/pipe/manifold4w/visible
+	icon_state = "map_4way"
 	level = 2
 
 /obj/machinery/atmospherics/pipe/manifold4w/visible/scrubbers
-	name = "Scrubbers pipe"
+	name="4-way scrubbers pipe manifold"
+	desc = "A manifold composed of scrubbers pipes"
+	icon_state = "map_4way-scrubbers"
+	connect_types = list(3)
+	layer = 2.38
+	icon_connect_type = "-scrubbers"
 	color = PIPE_COLOR_RED
 
 /obj/machinery/atmospherics/pipe/manifold4w/visible/supply
-	name = "Air supply pipe"
+	name="4-way air supply pipe manifold"
+	desc = "A manifold composed of supply pipes"
+	icon_state = "map_4way-supply"
+	connect_types = list(2)
+	layer = 2.39
+	icon_connect_type = "-supply"
 	color = PIPE_COLOR_BLUE
 
 /obj/machinery/atmospherics/pipe/manifold4w/visible/yellow
@@ -749,17 +966,27 @@
 /obj/machinery/atmospherics/pipe/manifold4w/visible/purple
 	color = PIPE_COLOR_PURPLE
 
-/obj/machinery/atmospherics/pipe/manifold4w/hidden
-	icon_state = "map_4way"
+/obj/machinery/atmospherics/pipe/manifold4w/hidden
+	icon_state = "map_4way"
 	level = 1
 	alpha = 128		//set for the benefit of mapping - this is reset to opaque when the pipe is spawned in game
 
 /obj/machinery/atmospherics/pipe/manifold4w/hidden/scrubbers
-	name = "Scrubbers pipe"
+	name="4-way scrubbers pipe manifold"
+	desc = "A manifold composed of scrubbers pipes"
+	icon_state = "map_4way-scrubbers"
+	connect_types = list(3)
+	layer = 2.38
+	icon_connect_type = "-scrubbers"
 	color = PIPE_COLOR_RED
 
 /obj/machinery/atmospherics/pipe/manifold4w/hidden/supply
-	name = "Air supply pipe"
+	name="4-way air supply pipe manifold"
+	desc = "A manifold composed of supply pipes"
+	icon_state = "map_4way-supply"
+	connect_types = list(2)
+	layer = 2.39
+	icon_connect_type = "-supply"
 	color = PIPE_COLOR_BLUE
 
 /obj/machinery/atmospherics/pipe/manifold4w/hidden/yellow
@@ -839,8 +1066,12 @@
 /obj/machinery/atmospherics/pipe/cap/initialize()
 	for(var/obj/machinery/atmospherics/target in get_step(src, dir))
 		if(target.initialize_directions & get_dir(target,src))
-			node = target
-			break
+			var/c = check_connect_types(target,src)
+			if (c)
+				target.connected_to = c
+				src.connected_to = c
+				node = target
+				break
 
 	var/turf/T = src.loc			// hide if turf is not intact
 	hide(T.intact)
@@ -907,8 +1138,12 @@
 
 	for(var/obj/machinery/atmospherics/target in get_step(src,connect_direction))
 		if(target.initialize_directions & get_dir(target,src))
-			node1 = target
-			break
+			var/c = check_connect_types(target,src)
+			if (c)
+				target.connected_to = c
+				src.connected_to = c
+				node1 = target
+				break
 
 	update_underlays()
 
@@ -1088,8 +1323,12 @@
 
 	for(var/obj/machinery/atmospherics/target in get_step(src,connect_direction))
 		if(target.initialize_directions & get_dir(target,src))
-			node1 = target
-			break
+			var/c = check_connect_types(target,src)
+			if (c)
+				target.connected_to = c
+				src.connected_to = c
+				node1 = target
+				break
 
 	update_icon()