3rd pass OOP

now we've got lists for parents, nodes, and air mixtures
(they're all broken)
moves tank.dm, cryo.dm, Freezer.dm to components/unary_devices/

code/ATMOSPHERICS/components/binary_devices/binary_atmos_base.dm

@@ -3,20 +3,7 @@
 	dir = SOUTH
 	initialize_directions = SOUTH|NORTH
 	use_power = 1
-	nodes = 2
-
-	var/datum/gas_mixture/air1
-	var/datum/gas_mixture/air2
-
-	var/obj/machinery/atmospherics/node1
-	var/obj/machinery/atmospherics/node2
-
-	var/datum/pipeline/parent1
-	var/datum/pipeline/parent2
-
-/obj/machinery/atmospherics/components/binary/New()
-	var/airs[] = ..()
-	set_airs(airs)
+	node_amount = 2
 
 /obj/machinery/atmospherics/components/binary/SetInitDirections()
 	switch(dir)
@@ -40,35 +27,8 @@ Iconnery
 Helpers
 */
 
-/obj/machinery/atmospherics/components/trinary/get_airs()
-	return list(air1, air2)
-
-/obj/machinery/atmospherics/components/trinary/get_nodes()
-	return list(node1, node2)
-
-/obj/machinery/atmospherics/components/trinary/get_parents()
-	return list(parent1, parent2)
-
-/obj/machinery/atmospherics/components/trinary/set_airs(var/list/L)
-	var/datum/gas_mixture/a1 = L[1]
-	var/datum/gas_mixture/a2 = L[2]
-
-	air1 = a1
-	air2 = a2
-
-/obj/machinery/atmospherics/components/trinary/set_nodes(var/list/L)
-	var/obj/machinery/atmospherics/n1 = L[1]
-	var/obj/machinery/atmospherics/n2 = L[2]
-
-	node1 = n1
-	node2 = n2
-
-/obj/machinery/atmospherics/components/trinary/set_parents(var/list/L)
-	var/datum/pipeline/p1 = L[1]
-	var/datum/pipeline/p2 = L[2]
-
-	parent1 = p1
-	parent2 = p2
+/obj/machinery/atmospherics/components/trinary/update_airs(var/a1, var/a2)
+	..(list(1 = a1, 2 = a2))
 
 /*
 Housekeeping and pipe network stuff
@@ -79,44 +39,13 @@ Housekeeping and pipe network stuff
 	var/node2_connect = dir
 	var/node1_connect = turn(dir, 180)
 
-	//var/node_connects[] = list(node1_connect, node2_connect)
-	for(var/obj/machinery/atmospherics/target in get_step(src,node1_connect))
+	var/node_connects[] = list(1 = node1_connect, 2 = node2_connect)
+	/* for(var/obj/machinery/atmospherics/target in get_step(src,node1_connect))
 		if(target.initialize_directions & get_dir(target,src))
-			nodes[node1] = target
+			nodes[1] = target
 			break
 	for(var/obj/machinery/atmospherics/target in get_step(src,node2_connect))
 		if(target.initialize_directions & get_dir(target,src))
-			nodes[node2] = target
-			break
-	..(/*node_connects*/)
-
-/obj/machinery/atmospherics/components/binary/construction()
-	var/parents[] = ..()
-	set_parents(parents)
-
-/obj/machinery/atmospherics/components/binary/build_network()
-	var/parents[] = ..()
-	set_parents(parents)
-
-/obj/machinery/atmospherics/components/binary/disconnect(obj/machinery/atmospherics/reference)
-	var/parents[] = ..(reference)
-	set_parents(parents)
-
-/obj/machinery/atmospherics/components/binary/nullifyPipenet(datum/pipeline/P)
-	var/parents[] = ..(P)
-	set_parents(parents)
-
-/obj/machinery/atmospherics/components/binary/setPipenet(datum/pipeline/P, obj/machinery/atmospherics/A)
-	var/parents[] = ..(P, A)
-	set_parents(parents)
-
-/obj/machinery/atmospherics/components/binary/replacePipenet(datum/pipeline/Old, datum/pipeline/New)
-	var/parents[] = ..(Old, New)
-	set_parents(parents)
-
-/obj/machinery/atmospherics/components/binary/unsafe_pressure_release(var/mob/user, var/pressures)
-	var/airs[] = ..(user, pressures)
-	set_airs(airs)
-
-//This sure looks like a lot of copypaste... It's already WAY better though, so it works for now
-//TODO: make it even more OOP - duncathan
+			nodes[2] = target
+			break */
+	..(node_connects)

code/ATMOSPHERICS/components/binary_devices/circulator.dm

@@ -18,6 +18,8 @@
 
 /obj/machinery/atmospherics/binary/circulator/proc/return_transfer_air()
 
+	var/datum/gas_mixture/air1 = airs[1]
+	var/datum/gas_mixture/air2 = airs[2]
 
 	var/output_starting_pressure = air1.return_pressure()
 	var/input_starting_pressure = air2.return_pressure()
@@ -40,9 +42,9 @@
 		//Actually transfer the gas
 		var/datum/gas_mixture/removed = air2.remove(transfer_moles)
 
-		parent1.update = 1
+		update_airs(air1, air2)
 
-		parent2.update = 1
+		update_parents()
 
 		return removed
 

code/ATMOSPHERICS/components/binary_devices/dp_vent_pump.dm

@@ -42,9 +42,9 @@ Acts like a normal vent, but has an input AND output.
 
 /obj/machinery/atmospherics/binary/dp_vent_pump/high_volume/New()
 	..()
-
-	air1.volume = 1000
-	air2.volume = 1000
+	var/datum/gas_mixture/air1 = airs[1] ; air1.volume = 1000
+	var/datum/gas_mixture/air2 = airs[2] ; air2.volume = 1000
+	update_airs(air1, air2)
 
 /obj/machinery/atmospherics/binary/dp_vent_pump/update_icon_nopipes()
 	overlays.Cut()
@@ -65,6 +65,8 @@ Acts like a normal vent, but has an input AND output.
 
 	if(!on)
 		return 0
+	var/datum/gas_mixture/air1 = airs[1]
+	var/datum/gas_mixture/air2 = airs[2]
 
 	var/datum/gas_mixture/environment = loc.return_air()
 	var/environment_pressure = environment.return_pressure()
@@ -86,7 +88,7 @@ Acts like a normal vent, but has an input AND output.
 				loc.assume_air(removed)
 				air_update_turf()
 
-				parent1.update = 1
+				update_parents(list(1 = parents[1])) //this looks disgusting, but it works
 
 	else //external -> output
 		var/pressure_delta = 10000
@@ -105,7 +107,9 @@ Acts like a normal vent, but has an input AND output.
 				air2.merge(removed)
 				air_update_turf()
 
-				parent2.update = 1
+				update_parents(list(2 = parents[2]))
+
+	update_airs(air1, air2)
 
 	return 1
 

code/ATMOSPHERICS/components/binary_devices/passive_gate.dm

@@ -40,6 +40,9 @@ Passive gate is similar to the regular pump except:
 	if(!on)
 		return 0
 
+	var/datum/gas_mixture/air1 = airs[1]
+	var/datum/gas_mixture/air2 = airs[2]
+
 	var/output_starting_pressure = air2.return_pressure()
 	var/input_starting_pressure = air1.return_pressure()
 
@@ -59,9 +62,8 @@ Passive gate is similar to the regular pump except:
 		var/datum/gas_mixture/removed = air1.remove(transfer_moles)
 		air2.merge(removed)
 
-		parent1.update = 1
-
-		parent2.update = 1
+		update_airs(air1, air2)
+		update_parents()
 
 
 //Radio remote control

code/ATMOSPHERICS/components/binary_devices/pump.dm

@@ -48,6 +48,9 @@ Thus, the two variables affect pump operation are set in New():
 	if(!on)
 		return 0
 
+	var/datum/gas_mixture/air1 = airs[1]
+	var/datum/gas_mixture/air2 = airs[2]
+
 	var/output_starting_pressure = air2.return_pressure()
 
 	if( (target_pressure - output_starting_pressure) < 0.01)
@@ -63,10 +66,8 @@ Thus, the two variables affect pump operation are set in New():
 		var/datum/gas_mixture/removed = air1.remove(transfer_moles)
 		air2.merge(removed)
 
-		parent1.update = 1
-
-
-		parent2.update = 1
+		update_airs(air1, air2)
+		update_parents()
 
 	return 1
 

code/ATMOSPHERICS/components/binary_devices/valve.dm

@@ -27,9 +27,9 @@ It's like a regular ol' straight pipe, but you can turn it on and off.
 /obj/machinery/atmospherics/binary/valve/proc/open()
 	open = 1
 	update_icon_nopipes()
-	parent1.update = 0
-	parent2.update = 0
-	parent1.reconcile_air()
+	update_parents()
+	var/datum/pipeline/parent1 = parents[1] ; parent1.reconcile_air()
+	parents[1] = parent1
 	investigate_log("was opened by [usr ? key_name(usr) : "a remote signal"]", "atmos")
 
 /obj/machinery/atmospherics/binary/valve/proc/close()

code/ATMOSPHERICS/components/binary_devices/volume_pump.dm

@@ -48,6 +48,9 @@ Thus, the two variables affect pump operation are set in New():
 	if(!on)
 		return 0
 
+	var/datum/gas_mixture/air1 = airs[1]
+	var/datum/gas_mixture/air2 = airs[2]
+
 // Pump mechanism just won't do anything if the pressure is too high/too low
 
 	var/input_starting_pressure = air1.return_pressure()
@@ -62,9 +65,8 @@ Thus, the two variables affect pump operation are set in New():
 
 	air2.merge(removed)
 
-	parent1.update = 1
-
-	parent2.update = 1
+	update_airs(air1, air2)
+	update_parents()
 
 	return 1
 
@@ -124,6 +126,7 @@ Thus, the two variables affect pump operation are set in New():
 		on = !on
 
 	if("set_transfer_rate" in signal.data)
+		var/datum/gas_mixture/air1 = airs[1]
 		transfer_rate = Clamp(
 			text2num(signal.data["set_transfer_rate"]),
 			0,

code/ATMOSPHERICS/components/components_base.dm

@@ -5,17 +5,19 @@ On top of that, now people can add component-speciic procs/vars if they want!
 /obj/machinery/atmospherics/components/
 	var/welded = 0 //Used on pumps and scrubbers
 	var/showpipe = 0
-	var/nodes = 0
+	var/list/nodes
+	var/list/parents
+	var/list/airs
+	var/node_amount
 
-/obj/machinery/atmospherics/components/New(var/new_airs[] = get_airs()) //doesn't work properly
+/obj/machinery/atmospherics/components/New() //doesn't work properly
 	..()
-	for(var/A in new_airs)
+	for(var/A = 1; A <= node_amount; A++)
 		var/datum/gas_mixture/air = A
 
 		air = new
 		air.volume = 200
-		new_airs[A] = air
-	return new_airs
+		airs[A] = air
 /*
 Iconnery
 */
@@ -35,7 +37,7 @@ Iconnery
 /obj/machinery/atmospherics/components/proc/update_icon_nopipes()
 	return
 
-/obj/machinery/atmospherics/components/update_icon(var/update_nodes[] = nodes) //works
+/obj/machinery/atmospherics/components/update_icon() //works
 	update_icon_nopipes()
 
 	underlays.Cut()
@@ -44,7 +46,7 @@ Iconnery
 
 	var/connected = 0
 
-	for(var/N in update_nodes) //adds intact pieces
+	for(var/N in nodes) //adds intact pieces
 		var/obj/machinery/atmospherics/node = N
 		if(node)
 			connected = icon_addintact(node, connected)
@@ -54,124 +56,113 @@ Iconnery
 /*
 Pipenet stuff; housekeeping
 */
-/obj/machinery/atmospherics/components/Destroy(var/dest_nodes[] = get_nodes(), var/dest_parents[] = get_parents()) //works somewhat
-	for(var/N in dest_nodes)
+/obj/machinery/atmospherics/components/Destroy() //works somewhat
+	for(var/N in nodes)
 		var/obj/machinery/atmospherics/node = N
-		var/datum/pipeline/parent = dest_parents[N]
+		var/datum/pipeline/parent = parents[N]
 
 		if(node)
 			node.disconnect(src)
 			node = null
 			nullifyPipenet(parent)
-			dest_nodes[N] = node
-			dest_parents[N] = parent
+			nodes[N] = node
+			parents[N] = parent
 	..()
-	return list(nodes = dest_nodes, parents = dest_parents)
 
-/obj/machinery/atmospherics/components/atmosinit(var/node_connects[], var/init_nodes[] = get_nodes()) //doesn't work for another reason
-	/*for(var/N in nodes)
-		var/obj/machinery/atmospherics/node = N
-		var/dir/node_connect = node_connects[N]
-
-		for(var/obj/machinery/atmospherics/target in get_step(src,node_connect))
+/obj/machinery/atmospherics/components/atmosinit(var/list/node_connects) //doesn't work for another reason
+	for(var/N = 1; N <= node_amount; N++)
+		for(var/obj/machinery/atmospherics/target in get_step(src,node_connects[N]))
 			if(target.initialize_directions & get_dir(target,src))
-				node = target
-				break*/
+				nodes[N] = target
 	if(level == 2)
 		showpipe = 1
 	update_icon()
 	return
 
-/obj/machinery/atmospherics/components/construction(var/constr_parents[] = get_parents()) //doesn't work
+/obj/machinery/atmospherics/components/construction() //doesn't work
 	..()
-	for(var/P in constr_parents)
+	for(var/P in parents)
 		var/datum/pipeline/parent = P
 		parent.update = 1
-		constr_parents[P] = parent
-	return constr_parents
+		parents[P] = parent
 
-/obj/machinery/atmospherics/components/build_network(var/build_parents[] = get_parents()) //doesn't work
-	for(var/P in build_parents)
+/obj/machinery/atmospherics/components/build_network() //doesn't work
+	for(var/P in parents)
 		var/datum/pipeline/parent = P
 
 		if(parent)
 			return
 		parent = new /datum/pipeline()
 		parent.build_pipeline(src)
-		build_parents[P] = parent
-	return build_parents
+		parents[P] = parent
 
-/obj/machinery/atmospherics/components/disconnect(obj/machinery/atmospherics/reference, var/disc_nodes[] = get_nodes(), var/disc_parents[] = get_parents()) //works
-	for(var/N in disc_nodes)
+/obj/machinery/atmospherics/components/disconnect(obj/machinery/atmospherics/reference) //works
+	for(var/N in nodes)
 		var/obj/machinery/atmospherics/node = N
-		var/datum/pipeline/parent = disc_parents[N]
+		var/datum/pipeline/parent = parents[N]
 
 		if(reference == node)
 			if(istype(node, /obj/machinery/atmospherics/pipe))
 				qdel(parent)
 			parent = null
-			disc_parents[N] = parent
+			parents[N] = parent
 	update_icon()
-	return disc_parents
 
-/obj/machinery/atmospherics/components/nullifyPipenet(datum/pipeline/pipeline, var/null_parents[] = get_parents(), var/null_airs[] = get_airs()) //untestable
+/obj/machinery/atmospherics/components/nullifyPipenet(datum/pipeline/pipeline) //untestable
 	..()
-	for(var/P in null_parents)
+	for(var/P in parents)
 		var/datum/pipeline/parent = P
-		var/datum/gas_mixture/air = null_airs[P]
+		var/datum/gas_mixture/air = airs[P]
 
 		if(pipeline == parent)
 			parent.other_airs -= air
 			parent = null
-			null_parents[P] = parent
-	return null_parents
+			parents[P] = parent
 
-/obj/machinery/atmospherics/components/returnPipenetAir(datum/pipeline/pipeline, var/return_parents[] = get_parents(), var/return_airs[] = get_airs()) //untestable; should work
-	for(var/P in return_parents)
+/obj/machinery/atmospherics/components/returnPipenetAir(datum/pipeline/pipeline) //untestable; should work
+	for(var/P in parents)
 		var/datum/pipeline/parent = P
-		var/datum/gas_mixture/air = return_airs[P]
+		var/datum/gas_mixture/air = airs[P]
 
 		if(pipeline == parent)
 			return air
 
-/obj/machinery/atmospherics/components/pipeline_expansion(datum/pipeline/pipeline, var/expand_parents[] = get_parents(), var/expand_nodes[] = get_nodes()) //TODO: dong
+/obj/machinery/atmospherics/components/pipeline_expansion(datum/pipeline/pipeline)
 	if(!pipeline)
-		return expand_nodes //works
-	for(var/N in expand_nodes)
+		return nodes //works
+	for(var/N in nodes)
 		var/obj/machinery/atmospherics/node = N
-		var/datum/pipeline/parent = expand_parents[N]
+		var/datum/pipeline/parent = parents[N]
 
 		if(parent == pipeline)
 			return list(node) //untestable; should work
 
-/obj/machinery/atmospherics/components/setPipenet(datum/pipeline/pipeline, obj/machinery/atmospherics/A, var/set_parents[] = get_parents(), var/set_nodes[] = get_nodes())
-	for(var/N in set_nodes)
+/obj/machinery/atmospherics/components/setPipenet(datum/pipeline/pipeline, obj/machinery/atmospherics/A)
+	for(var/N in nodes)
 		var/obj/machinery/atmospherics/node = N
-		var/datum/pipeline/parent = set_parents[N]
+		var/datum/pipeline/parent = parents[N]
 
 		if(A == node)
 			parent = pipeline
-			set_parents[N] = parent
-	return set_parents
+			parents[N] = parent
 
-/obj/machinery/atmospherics/components/returnPipenet(obj/machinery/atmospherics/A, var/return_parents[] = get_parents(), var/return_nodes = get_nodes())
-	for(var/N in return_nodes)
+/obj/machinery/atmospherics/components/returnPipenet(obj/machinery/atmospherics/A)
+	for(var/N in nodes)
 		var/obj/machinery/atmospherics/node = N
-		var/datum/pipeline/parent = return_parents[N]
+		var/datum/pipeline/parent = parents[N]
 
 		if(A == node)
 			return parent //probably works
 
-/obj/machinery/atmospherics/components/replacePipenet(datum/pipeline/Old, datum/pipeline/New, var/replace_parents[] = get_parents())
-	for(var/P in replace_parents)
+/obj/machinery/atmospherics/components/replacePipenet(datum/pipeline/Old, datum/pipeline/New)
+	for(var/P in parents)
 		var/datum/pipeline/parent = P
 
 		if(Old == parent)
 			parent = New
-			replace_parents[P] = parent
-	return replace_parents
+		parents[P] = parent
 
-/obj/machinery/atmospherics/components/unsafe_pressure_release(var/mob/user, var/pressures, var/unsafe_airs[] = get_airs()) //untestable; I'll fix this last
+/obj/machinery/atmospherics/components/unsafe_pressure_release(var/mob/user, var/pressures) //untestable; I'll fix this last
 	..()
 
 	var/turf/T = get_turf(src)
@@ -180,23 +171,22 @@ Pipenet stuff; housekeeping
 		var/datum/gas_mixture/environment = T.return_air()
 		var/lost = null
 		var/times_lost = 0
-		for(var/A in unsafe_airs)
+		for(var/A in airs)
 			var/datum/gas_mixture/air = A
 			lost += pressures*environment.volume/(air.temperature * R_IDEAL_GAS_EQUATION)
 			times_lost++
 		var/shared_loss = lost/times_lost
 
 		var/datum/gas_mixture/to_release
-		for(var/A in unsafe_airs)
+		for(var/A in airs)
 			var/datum/gas_mixture/air = A
 			if(!to_release)
 				to_release = air.remove(shared_loss)
 				continue
 			to_release.merge(air.remove(shared_loss))
-			unsafe_airs[A] = air
+			airs[A] = air
 		T.assume_air(to_release)
 		air_update_turf(1)
-	return unsafe_airs
 
 /*
 I think this is NanoUI?
@@ -218,9 +208,14 @@ Helpers
 /obj/machinery/atmospherics/components/proc/get_parents()
 	return
 
-/obj/machinery/atmospherics/components/proc/set_airs()
-	return
-/obj/machinery/atmospherics/components/proc/set_nodes()
-	return
-/obj/machinery/atmospherics/components/proc/set_parents()
-	return
+/obj/machinery/atmospherics/components/proc/update_airs(var/list/L)
+	for(var/N in L)
+		var/datum/gas_mixture/air = L[N]
+		airs[N] = air
+
+/obj/machinery/atmospherics/components/proc/update_parents(var/list/L = parents)
+	for(var/N in L)
+		if(!N)
+			continue
+		var/datum/pipeline/parent = N ; parent.update = 1
+		parents[N] = parent

code/ATMOSPHERICS/components/trinary_devices/filter.dm

@@ -67,7 +67,7 @@ Filter types:
 
 /obj/machinery/atmospherics/trinary/filter/update_icon_nopipes()
 
-	if(!(stat & NOPOWER) && on && node1 && node2 && node3)
+	if(!(stat & NOPOWER) && on && nodes[1] && nodes[2] && nodes[3])
 		icon_state = "filter_on[flipped?"_f":""]"
 		return
 
@@ -86,6 +86,10 @@ Filter types:
 	if(!on)
 		return 0
 
+	var/datum/gas_mixture/air1 = airs[1]
+	var/datum/gas_mixture/air2 = airs[2]
+	var/datum/gas_mixture/air3 = airs[3]
+
 	var/output_starting_pressure = air3.return_pressure()
 
 	if(output_starting_pressure >= target_pressure)
@@ -147,11 +151,8 @@ Filter types:
 		air2.merge(filtered_out)
 		air3.merge(removed)
 
-	parent2.update = 1
-
-	parent3.update = 1
-
-	parent1.update = 1
+	update_airs(air1, air2, air3)
+	update_parents()
 
 	return 1
 

code/ATMOSPHERICS/components/trinary_devices/mixer.dm

@@ -36,8 +36,13 @@
 	overlays.Cut()
 	..()
 
+<<<<<<< HEAD
 /obj/machinery/atmospherics/trinary/mixer/update_icon_nopipes()
 	if(!(stat & NOPOWER) && on && node1 && node2 && node3)
+=======
+/obj/machinery/atmospherics/components/trinary/mixer/update_icon_nopipes()
+	if(!(stat & NOPOWER) && on && nodes[1] && nodes[2] && nodes[3])
+>>>>>>> 3ee8754... 3rd pass OOP
 		icon_state = "mixer_on[flipped?"_f":""]"
 		return
 
@@ -53,13 +58,18 @@
 
 /obj/machinery/atmospherics/trinary/mixer/New()
 	..()
-	air3.volume = 300
+	var/datum/gas_mixture/air3 = airs[3] ; air3.volume = 300
+	airs[3] = air3
 
 /obj/machinery/atmospherics/trinary/mixer/process_atmos()
 	..()
 	if(!on)
 		return 0
 
+	var/datum/gas_mixture/air1 = airs[1]
+	var/datum/gas_mixture/air2 = airs[2]
+	var/datum/gas_mixture/air3 = airs[3]
+
 	var/output_starting_pressure = air3.return_pressure()
 
 	if(output_starting_pressure >= target_pressure)
@@ -104,12 +114,13 @@
 		air3.merge(removed2)
 
 	if(transfer_moles1)
-		parent1.update = 1
+		update_parents(list(1 = parents[1]))
 
 	if(transfer_moles2)
-		parent2.update = 1
+		update_parents(list(2 = parents[2]))
 
-	parent3.update = 1
+	update_airs(air1, air2, air3)
+	update_parents(list(3 = parents[3]))
 
 	return 1
 

code/ATMOSPHERICS/components/trinary_devices/trinary_base.dm

@@ -3,26 +3,10 @@
 	dir = SOUTH
 	initialize_directions = SOUTH|NORTH|WEST
 	use_power = 1
-	nodes = 3
-
-	var/obj/machinery/atmospherics/node1
-	var/obj/machinery/atmospherics/node2
-	var/obj/machinery/atmospherics/node3
-
-	var/datum/pipeline/parent1
-	var/datum/pipeline/parent2
-	var/datum/pipeline/parent3
-
-	var/datum/gas_mixture/air1
-	var/datum/gas_mixture/air2
-	var/datum/gas_mixture/air3
+	node_amount = 3
 
 	var/flipped = 0
 
-/obj/machinery/atmospherics/components/trinary/New()
-	var/airs[] = ..()
-	set_airs(airs)
-
 /obj/machinery/atmospherics/components/trinary/SetInitDirections()
 	switch(dir)
 		if(NORTH)
@@ -35,27 +19,12 @@
 			initialize_directions = WEST|NORTH|EAST
 
 /*
-Helpers //these all look kinda copypaste-y, but I'm not entirely certain how to get around that -duncathan
+Helpers
 */
 
-/obj/machinery/atmospherics/components/trinary/get_airs()
-	return list(air1, air2, air3)
-
-/obj/machinery/atmospherics/components/trinary/get_nodes()
-	return list(node1, node2, node3)
-
-/obj/machinery/atmospherics/components/trinary/get_parents()
-	return list(parent1, parent2, parent3)
-
-/obj/machinery/atmospherics/components/trinary/set_airs(var/list/L)
-	var/datum/gas_mixture/a1 = L[1]
-	var/datum/gas_mixture/a2 = L[2]
-	var/datum/gas_mixture/a3 = L[3]
-
-	air1 = a1
-	air2 = a2
-	air3 = a3
-
+/obj/machinery/atmospherics/components/trinary/update_airs(var/a1, var/a2, var/a3)
+	..(list(1 = a1, 2 = a2, 3 = a3))
+/*
 /obj/machinery/atmospherics/components/trinary/set_nodes(var/list/L)
 	var/obj/machinery/atmospherics/n1 = L[1]
 	var/obj/machinery/atmospherics/n2 = L[2]
@@ -64,25 +33,13 @@ Helpers //these all look kinda copypaste-y, but I'm not entirely certain how to
 	node1 = n1
 	node2 = n2
 	node3 = n3
+*/
 
-/obj/machinery/atmospherics/components/trinary/set_parents(var/list/L)
-	var/datum/pipeline/p1 = L[1]
-	var/datum/pipeline/p2 = L[2]
-	var/datum/pipeline/p3 = L[3]
-
-	parent1 = p1
-	parent2 = p2
-	parent3 = p3
 
 /*
 Housekeeping and pipe network stuff
 //WOW this got cut down thank you based OOP - duncathan
 */
-/obj/machinery/atmospherics/components/trinary/Destroy()
-	var/returns[] = ..()
-
-	set_nodes(returns[1])
-	set_parents(returns[2])
 
 /obj/machinery/atmospherics/components/trinary/atmosinit()
 
@@ -105,49 +62,18 @@ Housekeeping and pipe network stuff
 		node1_connect = turn(node1_connect, 180)
 		node3_connect = turn(node3_connect, 180)
 
-	//var/node_connects[] = list(nodes[node1]_connect, nodes[node2]_connect, nodes[node3]_connect)
+	var/node_connects[] = list(1 = node1_connect, 2 = node2_connect, 3 = node3_connect)
 
-	for(var/obj/machinery/atmospherics/target in get_step(src,node1_connect))
+	/* for(var/obj/machinery/atmospherics/target in get_step(src,node1_connect))
 		if(target.initialize_directions & get_dir(target,src))
-			nodes[node1] = target
+			nodes[1] = target
 			break
 	for(var/obj/machinery/atmospherics/target in get_step(src,node2_connect))
 		if(target.initialize_directions & get_dir(target,src))
-			nodes[node2] = target
+			nodes[2] = target
 			break
 	for(var/obj/machinery/atmospherics/target in get_step(src,node3_connect))
 		if(target.initialize_directions & get_dir(target,src))
-			nodes[node3] = target
-			break
-	..(/*node_connects*/)
-
-/obj/machinery/atmospherics/components/trinary/construction()
-	var/parents[] = ..()
-	set_parents(parents)
-
-/obj/machinery/atmospherics/components/trinary/build_network()
-	var/parents[] = ..()
-	set_parents(parents)
-
-/obj/machinery/atmospherics/components/trinary/disconnect(obj/machinery/atmospherics/reference)
-	var/parents[] = ..(reference)
-	set_parents(parents)
-
-/obj/machinery/atmospherics/components/trinary/nullifyPipenet(datum/pipeline/P)
-	var/parents[] = ..(P)
-	set_parents(parents)
-
-/obj/machinery/atmospherics/components/trinary/setPipenet(datum/pipeline/P, obj/machinery/atmospherics/A)
-	var/parents[] = ..(P, A)
-	set_parents(parents)
-
-/obj/machinery/atmospherics/components/trinary/replacePipenet(datum/pipeline/Old, datum/pipeline/New)
-	var/parents[] = ..(Old, New)
-	set_parents(parents)
-
-/obj/machinery/atmospherics/components/trinary/unsafe_pressure_release(var/mob/user, var/pressures)
-	var/airs[] = ..(user, pressures)
-	set_airs(airs)
-
-//This sure looks like a lot of copypaste... It's already way better though, so it works for now
-//TODO: make it even more OOP - duncathan
+			nodes[3] = target
+			break */
+	..(node_connects)

code/ATMOSPHERICS/components/unary_devices/Freezer.dm

@@ -69,6 +69,7 @@
 /obj/machinery/atmospherics/unary/cold_sink/freezer/interact(mob/user)
 	if(stat & (NOPOWER|BROKEN))
 		return
+	var/datum/gas_mixture/air_contents = airs[1]
 	user.set_machine(src)
 	var/temp_text = ""
 	if(air_contents.temperature > (T0C - 20))
@@ -193,6 +194,8 @@
 	return interact(user)
 
 /obj/machinery/atmospherics/unary/heat_reservoir/heater/interact(mob/user)
+	var/datum/gas_mixture/air_contents = airs[1]
+
 	if(stat & (NOPOWER|BROKEN))
 		return
 	user.set_machine(src)

code/ATMOSPHERICS/components/unary_devices/cold_sink.dm

@@ -16,7 +16,7 @@
 	if(showpipe)
 		overlays += getpipeimage('icons/obj/atmospherics/unary_devices.dmi', "scrub_cap", initialize_directions) //scrub_cap works for now
 
-	if(!node || !on || stat & (NOPOWER|BROKEN))
+	if(!nodes[1] || !on || stat & (NOPOWER|BROKEN))
 		icon_state = "cold_off"
 		return
 
@@ -27,6 +27,8 @@
 	..()
 	if(!on)
 		return 0
+	var/datum/gas_mixture/air_contents = airs[1]
+
 	var/air_heat_capacity = air_contents.heat_capacity()
 	var/combined_heat_capacity = current_heat_capacity + air_heat_capacity
 	var/old_temperature = air_contents.temperature
@@ -36,7 +38,7 @@
 		air_contents.temperature = combined_energy/combined_heat_capacity
 
 	//todo: have current temperature affected. require power to bring down current temperature again
-
+	update_airs(air_contents)
 	if(abs(old_temperature-air_contents.temperature) > 1)
-		parent.update = 1
+		update_parents()
 	return 1

code/ATMOSPHERICS/components/unary_devices/cryo.dm

@@ -47,11 +47,13 @@
 	..()
 /obj/machinery/atmospherics/unary/cryo_cell/process_atmos()
 	..()
+	var/datum/gas_mixture/air_contents = airs[1]
+
 	if(air_contents)
 		temperature_archived = air_contents.temperature
 		heat_gas_contents()
 	if(abs(temperature_archived-air_contents.temperature) > 1)
-		parent.update = 1
+		update_parents()
 
 /obj/machinery/atmospherics/unary/cryo_cell/process()
 	..()
@@ -60,14 +62,14 @@
 			on = 0
 			open_machine()
 			playsound(src.loc, 'sound/machines/ding.ogg', 50, 1)
-	if(!node || !is_operational())
+	if(!nodes[1] || !is_operational())
 		return
 
 	if(!on)
 		updateDialog()
 		return
 
-	if(air_contents)
+	if(airs[1])
 		if (occupant)
 			process_occupant()
 		expel_gas()
@@ -144,6 +146,8 @@
 
 /obj/machinery/atmospherics/unary/cryo_cell/get_ui_data()
 	// this is the data which will be sent to the ui
+	var/datum/gas_mixture/air_contents = airs[1]
+
 	var/data = list()
 	data["isOperating"] = on
 	data["hasOccupant"] = occupant ? 1 : 0
@@ -286,6 +290,7 @@
 	update_icon()
 
 /obj/machinery/atmospherics/unary/cryo_cell/proc/process_occupant()
+	var/datum/gas_mixture/air_contents = airs[1]
 	if(air_contents.total_moles() < 10)
 		return
 	if(occupant)
@@ -293,7 +298,7 @@
 			occupant.bodytemperature = T0C
 			return
 		occupant.bodytemperature += 2*(air_contents.temperature - occupant.bodytemperature) * current_heat_capacity / (current_heat_capacity + air_contents.heat_capacity())
-		occupant.bodytemperature = max(occupant.bodytemperature, air_contents.temperature) // this is so ugly i'm sorry for doing it i'll fix it later i promise
+		occupant.bodytemperature = max(occupant.bodytemperature, air_contents.temperature) // this is so ugly i'm sorry for doing it i'll fix it later i promise //TODO: fix someone else's broken promise - duncathan
 		if(occupant.bodytemperature < T0C)
 //			occupant.sleeping = max(5/efficiency, (1 / occupant.bodytemperature)*2000/efficiency)
 //			occupant.Paralyse(max(5/efficiency, (1 / occupant.bodytemperature)*3000/efficiency))
@@ -317,6 +322,8 @@
 
 
 /obj/machinery/atmospherics/unary/cryo_cell/proc/heat_gas_contents()
+	var/datum/gas_mixture/air_contents = airs[1]
+
 	if(air_contents.total_moles() < 1)
 		return
 	var/air_heat_capacity = air_contents.heat_capacity()
@@ -324,9 +331,12 @@
 	if(combined_heat_capacity > 0)
 		var/combined_energy = T20C * current_heat_capacity + air_heat_capacity * air_contents.temperature
 		air_contents.temperature = combined_energy/combined_heat_capacity
+	update_airs(air_contents)
 
 
 /obj/machinery/atmospherics/unary/cryo_cell/proc/expel_gas()
+	var/datum/gas_mixture/air_contents = airs[1]
+
 	if(air_contents.total_moles() < 1)
 		return
 	var/datum/gas_mixture/expel_gas = new
@@ -335,3 +345,4 @@
 	expel_gas.temperature = T20C	//Lets expel hot gas and see if that helps people not die as they are removed
 	loc.assume_air(expel_gas)
 	air_update_turf()
+	update_airs(air_contents)

code/ATMOSPHERICS/components/unary_devices/generator_input.dm

@@ -9,7 +9,7 @@
 	var/update_cycle
 
 /obj/machinery/atmospherics/unary/generator_input/update_icon()
-	if(node)
+	if(nodes[1])
 		icon_state = "intact"
 	else
 		icon_state = "exposed"
@@ -17,4 +17,4 @@
 	return
 
 /obj/machinery/atmospherics/unary/generator_input/proc/return_exchange_air()
-	return air_contents
+	return airs[1]

code/ATMOSPHERICS/components/unary_devices/heat_exchanger.dm

@@ -11,8 +11,9 @@
 	var/update_cycle
 
 /obj/machinery/atmospherics/unary/heat_exchanger/update_icon()
-	if(node)
+	if(nodes[1])
 		icon_state = "he_intact"
+		var/obj/machinery/atmospherics/node = nodes[1]
 		color = node.color
 	else
 		icon_state = "he_exposed"
@@ -42,24 +43,30 @@
 	update_cycle = SSair.times_fired
 	partner.update_cycle = SSair.times_fired
 
+	var/datum/gas_mixture/air_contents = airs[1]
+	var/datum/gas_mixture/partner_air_contents = partner.airs[1]
+
 	var/air_heat_capacity = air_contents.heat_capacity()
-	var/other_air_heat_capacity = partner.air_contents.heat_capacity()
+	var/other_air_heat_capacity = partner_air_contents.heat_capacity()
 	var/combined_heat_capacity = other_air_heat_capacity + air_heat_capacity
 
 	var/old_temperature = air_contents.temperature
-	var/other_old_temperature = partner.air_contents.temperature
+	var/other_old_temperature = partner_air_contents.temperature
 
 	if(combined_heat_capacity > 0)
-		var/combined_energy = partner.air_contents.temperature*other_air_heat_capacity + air_heat_capacity*air_contents.temperature
+		var/combined_energy = partner_air_contents.temperature*other_air_heat_capacity + air_heat_capacity*air_contents.temperature
 
 		var/new_temperature = combined_energy/combined_heat_capacity
 		air_contents.temperature = new_temperature
-		partner.air_contents.temperature = new_temperature
+		partner_air_contents.temperature = new_temperature
 
 	if(abs(old_temperature-air_contents.temperature) > 1)
-		parent.update = 1
+		update_parents()
 
-	if(abs(other_old_temperature-partner.air_contents.temperature) > 1)
-		partner.parent.update = 1
+	if(abs(other_old_temperature-partner_air_contents.temperature) > 1)
+		partner.update_parents()
+
+	update_airs(air_contents)
+	partner.update_airs(partner_air_contents)
 
 	return 1

code/ATMOSPHERICS/components/unary_devices/heat_source.dm

@@ -17,7 +17,7 @@
 	if(showpipe)
 		overlays += getpipeimage('icons/obj/atmospherics/unary_devices.dmi', "scrub_cap", initialize_directions) //scrub_cap works for now
 
-	if(!node || !on || stat & (NOPOWER|BROKEN))
+	if(!nodes[1] || !on || stat & (NOPOWER|BROKEN))
 		icon_state = "cold_off"
 		return
 
@@ -28,6 +28,9 @@
 	..()
 	if(!on)
 		return 0
+
+	var/datum/gas_mixture/air_contents = airs[1]
+
 	var/air_heat_capacity = air_contents.heat_capacity()
 	var/combined_heat_capacity = current_heat_capacity + air_heat_capacity
 	var/old_temperature = air_contents.temperature
@@ -39,5 +42,6 @@
 	//todo: have current temperature affected. require power to bring up current temperature again
 
 	if(abs(old_temperature-air_contents.temperature) > 1)
-		parent.update = 1
+		update_parents()
+	update_airs(air_contents)
 	return 1

code/ATMOSPHERICS/components/unary_devices/outlet_injector.dm

@@ -25,7 +25,7 @@
 	on = 1
 
 /obj/machinery/atmospherics/unary/outlet_injector/update_icon_nopipes()
-	if(!node || !on || stat & (NOPOWER|BROKEN))
+	if(!nodes[1] || !on || stat & (NOPOWER|BROKEN))
 		icon_state = "inje_off"
 		return
 
@@ -45,6 +45,8 @@
 	if(!on || stat & NOPOWER)
 		return 0
 
+	var/datum/gas_mixture/air_contents = airs[1]
+
 	if(air_contents.temperature > 0)
 		var/transfer_moles = (air_contents.return_pressure())*volume_rate/(air_contents.temperature * R_IDEAL_GAS_EQUATION)
 
@@ -53,7 +55,8 @@
 		loc.assume_air(removed)
 		air_update_turf()
 
-		parent.update = 1
+		update_airs(air_contents)
+		update_parents()
 
 	return 1
 
@@ -61,6 +64,8 @@
 	if(on || injecting)
 		return 0
 
+	var/datum/gas_mixture/air_contents = airs[1]
+
 	injecting = 1
 
 	if(air_contents.temperature > 0)
@@ -70,7 +75,8 @@
 
 		loc.assume_air(removed)
 
-		parent.update = 1
+		update_airs(air_contents)
+		update_parents()
 
 	flick("inje_inject", src)
 
@@ -126,6 +132,7 @@
 
 	if("set_volume_rate" in signal.data)
 		var/number = text2num(signal.data["set_volume_rate"])
+		var/datum/gas_mixture/air_contents = airs[1]
 		volume_rate = Clamp(number, 0, air_contents.volume)
 
 	if("status" in signal.data)

code/ATMOSPHERICS/components/unary_devices/oxygen_generator.dm

@@ -18,7 +18,7 @@
 	if(showpipe)
 		overlays += getpipeimage('icons/obj/atmospherics/unary_devices.dmi', "scrub_cap", initialize_directions) //it works for now
 
-	if(!node || !on || stat & BROKEN)
+	if(!nodes[1] || !on || stat & BROKEN)
 		icon_state = "o2gen_off"
 		return
 
@@ -27,14 +27,16 @@
 
 /obj/machinery/atmospherics/unary/oxygen_generator/New()
 	..()
-
-	air_contents.volume = 50
+	var/datum/gas_mixture/air_contents = airs[1] ; air_contents.volume = 50
+	airs[1] = air_contents
 
 /obj/machinery/atmospherics/unary/oxygen_generator/process_atmos()
 	..()
 	if(!on)
 		return 0
 
+	var/datum/gas_mixture/air_contents = airs[1]
+
 	var/total_moles = air_contents.total_moles()
 
 	if(total_moles < oxygen_content)
@@ -45,6 +47,7 @@
 		air_contents.temperature = (current_heat_capacity*air_contents.temperature + 20*added_oxygen*T0C)/(current_heat_capacity+20*added_oxygen)
 		air_contents.oxygen += added_oxygen
 
-		parent.update = 1
+		update_airs(air_contents)
+		update_parents()
 
 	return 1

code/ATMOSPHERICS/components/unary_devices/portables_connector.dm

@@ -1,4 +1,4 @@
-/obj/machinery/atmospherics/unary/portables_connector
+/obj/machinery/atmospherics/components/unary/portables_connector
 	name = "connector port"
 	desc = "For connecting portables devices related to atmospherics control."
 	icon = 'icons/obj/atmospherics/unary_devices.dmi'
@@ -8,40 +8,27 @@
 	use_power = 0
 	level = 0
 
-/obj/machinery/atmospherics/unary/portables_connector/visible
+/obj/machinery/atmospherics/components/unary/portables_connector/visible
 	level = 2
 
-/obj/machinery/atmospherics/unary/portables_connector/update_icon()
-	icon_state = "connector"
-	underlays.Cut()
-	if(showpipe)
-		var/state
-		var/col
-		if(node)
-			state = "pipe_intact"
-			col = node.pipe_color
-		else
-			state = "pipe_exposed"
-		underlays += getpipeimage('icons/obj/atmospherics/binary_devices.dmi', state, initialize_directions, col)
-
-/obj/machinery/atmospherics/unary/portables_connector/process_atmos()
+/obj/machinery/atmospherics/components/unary/portables_connector/process_atmos()
 	if(!connected_device)
 		return
-	parent.update = 1
+	update_parents()
 
-/obj/machinery/atmospherics/unary/portables_connector/Destroy()
+/obj/machinery/atmospherics/components/unary/portables_connector/Destroy()
 	if(connected_device)
 		connected_device.disconnect()
 	..()
 
-/obj/machinery/atmospherics/unary/portables_connector/attackby(obj/item/weapon/W, mob/user, params)
+/obj/machinery/atmospherics/components/unary/portables_connector/attackby(obj/item/weapon/W, mob/user, params)
 	if(istype(W, /obj/item/weapon/wrench))
 		if(connected_device)
 			user << "<span class='warning'>You cannot unwrench this [src], dettach [connected_device] first!</span>"
 			return 1
 	return ..()
 
-/obj/machinery/atmospherics/unary/portables_connector/portableConnectorReturnAir()
+/obj/machinery/atmospherics/components/unary/portables_connector/portableConnectorReturnAir()
 	return connected_device.portableConnectorReturnAir()
 
 /obj/proc/portableConnectorReturnAir()

code/ATMOSPHERICS/components/unary_devices/tank.dm

@@ -1,4 +1,4 @@
-/obj/machinery/atmospherics/unary/tank
+/obj/machinery/atmospherics/components/unary/tank
 	icon = 'icons/obj/atmospherics/pipes/pressure_tank.dmi'
 	icon_state = "generic"
 	name = "pressure tank"
@@ -6,76 +6,76 @@
 	var/volume = 10000 //in liters, 1 meters by 1 meters by 2 meters
 	density = 1
 
-/obj/machinery/atmospherics/unary/tank/update_icon()
-	underlays.Cut()
-	if(showpipe)
-		var/state
-		var/col
-		if(node)
-			state = "pipe_intact"
-			col = node.pipe_color
-		else
-			state = "pipe_exposed"
-		underlays += getpipeimage('icons/obj/atmospherics/pipes/pressure_tank.dmi', state, initialize_directions, col)
-
-/obj/machinery/atmospherics/unary/tank/carbon_dioxide
+/obj/machinery/atmospherics/components/unary/tank/carbon_dioxide
 	name = "pressure tank (Carbon Dioxide)"
 
-/obj/machinery/atmospherics/unary/tank/carbon_dioxide/New()
+/obj/machinery/atmospherics/components/unary/tank/carbon_dioxide/New()
 	..()
+	var/datum/gas_mixture/air_contents = airs[1]
 	air_contents.volume = volume
 	air_contents.temperature = T20C
 	air_contents.carbon_dioxide = (25*ONE_ATMOSPHERE)*(air_contents.volume)/(R_IDEAL_GAS_EQUATION*air_contents.temperature)
+	update_airs(air_contents)
 
-/obj/machinery/atmospherics/unary/tank/toxins
+/obj/machinery/atmospherics/components/unary/tank/toxins
 	icon_state = "orange"
 	name = "pressure tank (Plasma)"
 
-/obj/machinery/atmospherics/unary/tank/toxins/New()
+/obj/machinery/atmospherics/components/unary/tank/toxins/New()
 	..()
+	var/datum/gas_mixture/air_contents = airs[1]
 	air_contents.volume = volume
 	air_contents.temperature = T20C
 	air_contents.toxins = (25*ONE_ATMOSPHERE)*(air_contents.volume)/(R_IDEAL_GAS_EQUATION*air_contents.temperature)
+	update_airs(air_contents)
 
-/obj/machinery/atmospherics/unary/tank/oxygen_agent_b
+/obj/machinery/atmospherics/components/unary/tank/oxygen_agent_b
 	icon_state = "orange_2"
 	name = "pressure tank (Oxygen + Plasma)"
 
-/obj/machinery/atmospherics/unary/tank/oxygen_agent_b/New()
+/obj/machinery/atmospherics/components/unary/tank/oxygen_agent_b/New()
 	..()
+	var/datum/gas_mixture/air_contents = airs[1]
 	air_contents.volume = volume
 	air_contents.temperature = T0C
 	var/datum/gas/oxygen_agent_b/trace_gas = new
 	trace_gas.moles = (25*ONE_ATMOSPHERE)*(air_contents.volume)/(R_IDEAL_GAS_EQUATION*air_contents.temperature)
 	air_contents.trace_gases += trace_gas
+	update_airs(air_contents)
 
-/obj/machinery/atmospherics/unary/tank/oxygen
+/obj/machinery/atmospherics/components/unary/tank/oxygen
 	icon_state = "blue"
 	name = "pressure tank (Oxygen)"
 
-/obj/machinery/atmospherics/unary/tank/oxygen/New()
+/obj/machinery/atmospherics/components/unary/tank/oxygen/New()
 	..()
+	var/datum/gas_mixture/air_contents = airs[1]
 	air_contents.volume = volume
 	air_contents.temperature = T20C
 	air_contents.oxygen = (25*ONE_ATMOSPHERE)*(air_contents.volume)/(R_IDEAL_GAS_EQUATION*air_contents.temperature)
+	update_airs(air_contents)
 
-/obj/machinery/atmospherics/unary/tank/nitrogen
+/obj/machinery/atmospherics/components/unary/tank/nitrogen
 	icon_state = "red"
 	name = "pressure tank (Nitrogen)"
 
-/obj/machinery/atmospherics/unary/tank/nitrogen/New()
+/obj/machinery/atmospherics/components/unary/tank/nitrogen/New()
 	..()
+	var/datum/gas_mixture/air_contents = airs[1]
 	air_contents.volume = volume
 	air_contents.temperature = T20C
 	air_contents.nitrogen = (25*ONE_ATMOSPHERE)*(air_contents.volume)/(R_IDEAL_GAS_EQUATION*air_contents.temperature)
+	update_airs(air_contents)
 
-/obj/machinery/atmospherics/unary/tank/air
+/obj/machinery/atmospherics/components/unary/tank/air
 	icon_state = "grey"
 	name = "pressure tank (Air)"
 
-/obj/machinery/atmospherics/unary/tank/air/New()
+/obj/machinery/atmospherics/components/unary/tank/air/New()
 	..()
+	var/datum/gas_mixture/air_contents = airs[1]
 	air_contents.volume = volume
 	air_contents.temperature = T20C
 	air_contents.oxygen = (25*ONE_ATMOSPHERE*O2STANDARD)*(air_contents.volume)/(R_IDEAL_GAS_EQUATION*air_contents.temperature)
-	air_contents.nitrogen = (25*ONE_ATMOSPHERE*N2STANDARD)*(air_contents.volume)/(R_IDEAL_GAS_EQUATION*air_contents.temperature)
+	air_contents.nitrogen = (25*ONE_ATMOSPHERE*N2STANDARD)*(air_contents.volume)/(R_IDEAL_GAS_EQUATION*air_contents.temperature)
+	update_airs(air_contents)

code/ATMOSPHERICS/components/unary_devices/unary_base.dm

@@ -3,14 +3,7 @@
 	dir = SOUTH
 	initialize_directions = SOUTH
 	layer = TURF_LAYER+0.1
-	nodes = 1
-
-	var/datum/gas_mixture/air_contents
-	var/obj/machinery/atmospherics/node
-
-/obj/machinery/atmospherics/components/unary/New()
-	var/airs[] = ..()
-	set_airs(airs)
+	node_amount = 1
 
 /obj/machinery/atmospherics/components/unary/SetInitDirections()
 	initialize_directions = dir
@@ -27,82 +20,36 @@ Iconnery
 Helpers
 */
 
-/obj/machinery/atmospherics/components/unary/get_airs()
-	return list(air_contents)
-
-/obj/machinery/atmospherics/components/unary/get_nodes()
-	return list(node)
-
-/obj/machinery/atmospherics/components/unary/get_parents()
-	return list(parent)
-
-/obj/machinery/atmospherics/components/unary/set_airs(var/list/L)
-	var/datum/gas_mixture/a1 = L[1]
-	air_contents = a1
-
-/obj/machinery/atmospherics/components/unary/set_nodes(var/list/L)
-	var/obj/machinery/atmospherics/n1 = L[1]
-	node = n1
-
-/obj/machinery/atmospherics/components/unary/set_parents(var/list/L)
-	var/datum/pipeline/p1 = L[1]
-	parent = p1
+/obj/machinery/atmospherics/components/unary/update_airs(var/a1)
+	..(list(1 = a1))
 
 /*
 Housekeeping and pipe network stuff below
 */
 
 /obj/machinery/atmospherics/components/unary/atmosinit()
-	//var/node_connects = list(dir)
-	for(var/obj/machinery/atmospherics/target in get_step(src,dir))
+	var/node_connects = list(1 = dir)
+	/*for(var/obj/machinery/atmospherics/target in get_step(src,dir))
 		if(target.initialize_directions & get_dir(target,src))
-			node = target
-			break
-	..(/*node_connects*/)
+			nodes[1] = target
+			break*/
+	..(node_connects)
 
 /obj/machinery/atmospherics/components/unary/default_change_direction_wrench(mob/user, obj/item/weapon/wrench/W)
 	if(..())
-		initialize_directions = dir
-		if(node)
-			node.disconnect(src)
-		node = null
-		nullifyPipenet(parent)
-		atmosinit()
-		initialize()
-		if(node)
-			node.atmosinit()
-			node.initialize()
-			node.addMember(src)
-		build_network()
-		. = 1
-
-/obj/machinery/atmospherics/components/unary/construction()
-	var/parents[] = ..()
-	set_parents(parents)
-
-/obj/machinery/atmospherics/components/unary/build_network()
-	var/parents[] = ..()
-	set_parents(parents)
-
-/obj/machinery/atmospherics/components/unary/disconnect(obj/machinery/atmospherics/reference)
-	var/parents[] = ..(reference)
-	set_parents(parents)
-
-/obj/machinery/atmospherics/components/unary/nullifyPipenet(datum/pipeline/P)
-	var/parents[] = ..(P)
-	set_parents(parents)
-
-/obj/machinery/atmospherics/components/unary/setPipenet(datum/pipeline/P, obj/machinery/atmospherics/A)
-	var/parents[] = ..(P, A)
-	set_parents(parents)
-
-/obj/machinery/atmospherics/components/unary/replacePipenet(datum/pipeline/Old, datum/pipeline/New)
-	var/parents[] = ..(Old, New)
-	set_parents(parents)
-
-/obj/machinery/atmospherics/components/unary/unsafe_pressure_release(var/mob/user, var/pressures)
-	var/airs[] = ..(user, pressures)
-	set_airs(airs)
-
-//This sure looks like a lot of copypaste... It's already way better though, so it works for now
-//TODO: make it even more OOP - duncathan
+		return 0
+	initialize_directions = dir
+	var/obj/machinery/atmospherics/node = nodes[1]
+	if(node)
+		node.disconnect(src)
+	node = null
+	nullifyPipenet(parent)
+	atmosinit()
+	initialize()
+	if(node)
+		node.atmosinit()
+		node.initialize()
+		node.addMember(src)
+	build_network()
+	. = 1
+	nodes[1] = node

code/ATMOSPHERICS/components/unary_devices/vent_pump.dm

@@ -65,7 +65,9 @@
 
 /obj/machinery/atmospherics/unary/vent_pump/high_volume/New()
 	..()
+	var/datum/gas_mixture/air_contents = airs[1]
 	air_contents.volume = 1000
+	update_airs(air_contents)
 
 /obj/machinery/atmospherics/unary/vent_pump/update_icon_nopipes()
 	overlays.Cut()
@@ -76,7 +78,7 @@
 		icon_state = "vent_welded"
 		return
 
-	if(!node || !on || stat & (NOPOWER|BROKEN))
+	if(!nodes[1] || !on || stat & (NOPOWER|BROKEN))
 		icon_state = "vent_off"
 		return
 
@@ -89,7 +91,7 @@
 	..()
 	if(stat & (NOPOWER|BROKEN))
 		return
-	if (!node)
+	if (!nodes[1])
 		on = 0
 	//broadcast_status() // from now air alarm/control computer should request update purposely --rastaf0
 	if(!on)
@@ -98,6 +100,7 @@
 	if(welded)
 		return 0
 
+	var/datum/gas_mixture/air_contents = airs[1]
 	var/datum/gas_mixture/environment = loc.return_air()
 	var/environment_pressure = environment.return_pressure()
 
@@ -118,8 +121,6 @@
 				loc.assume_air(removed)
 				air_update_turf()
 
-				parent.update = 1
-
 	else //external -> internal
 		var/pressure_delta = 10000
 		if(pressure_checks&1)
@@ -137,8 +138,8 @@
 
 				air_contents.merge(removed)
 				air_update_turf()
-
-				parent.update = 1
+	update_airs(air_contents)
+	update_parents()
 
 	return 1
 

code/ATMOSPHERICS/components/unary_devices/vent_scrubber.dm

@@ -56,7 +56,7 @@
 		icon_state = "scrub_welded"
 		return
 
-	if(!node || !on || stat & (NOPOWER|BROKEN))
+	if(!nodes[1] || !on || stat & (NOPOWER|BROKEN))
 		icon_state = "scrub_off"
 		return
 
@@ -114,13 +114,13 @@
 	..()
 	if(stat & (NOPOWER|BROKEN))
 		return
-	if (!node)
+	if (!nodes[1])
 		on = 0
 	//broadcast_status()
 	if(!on || welded)
 		return 0
 
-
+	var/datum/gas_mixture/air_contents = airs[1]
 	var/datum/gas_mixture/environment = loc.return_air()
 
 	if(scrubbing)
@@ -158,8 +158,6 @@
 			loc.assume_air(removed)
 			air_update_turf()
 
-			parent.update = 1
-
 	else //Just siphoning all air
 		if (air_contents.return_pressure()>=50*ONE_ATMOSPHERE)
 			return
@@ -171,7 +169,8 @@
 		air_contents.merge(removed)
 		air_update_turf()
 
-		parent.update = 1
+	update_airs(air_contents)
+	update_parents()
 
 	return 1
 

code/ATMOSPHERICS/datum_pipeline.dm

@@ -207,8 +207,8 @@ var/pipenetwarnings = 10
 		GL += P.other_airs
 		for(var/obj/machinery/atmospherics/binary/valve/V in P.other_atmosmch)
 			if(V.open)
-				PL |= V.parent1
-				PL |= V.parent2
+				PL |= V.parents[1]
+				PL |= V.parents[2]
 		for(var/obj/machinery/atmospherics/unary/portables_connector/C in P.other_atmosmch)
 			if(C.connected_device)
 				GL += C.portableConnectorReturnAir()

code/modules/mob/living/living.dm

@@ -824,11 +824,12 @@ Sorry Giacom. Please don't be mad :(
 
 	else if(istype(loc, /obj/machinery/atmospherics/unary/cryo_cell))
 		var/obj/machinery/atmospherics/unary/cryo_cell/C = loc
+		var/datum/gas_mixture/C_air_contents = C.airs[1]
 
-		if(C.air_contents.total_moles() < 10)
+		if(C_air_contents.total_moles() < 10)
 			loc_temp = environment.temperature
 		else
-			loc_temp = C.air_contents.temperature
+			loc_temp = C_air_contents.temperature
 
 	else
 		loc_temp = environment.temperature

code/modules/power/generator.dm

@@ -106,10 +106,14 @@
 		// update icon overlays only if displayed level has changed
 
 		if(hot_air)
-			circ2.air1.merge(hot_air)
+			var/datum/gas_mixture/circ2_air1 = circ2.airs[1]
+			circ2_air1.merge(hot_air)
+			circ2.update_airs(circ2_air1)
 
 		if(cold_air)
-			circ1.air1.merge(cold_air)
+			var/datum/gas_mixture/circ1_air1 = circ1.airs[1]
+			circ1_air1.merge(cold_air)
+			circ1.update_airs(circ1_air1)
 
 	var/genlev = max(0, min( round(11*lastgen / 100000), 11))
 	var/circ = "[circ1 && circ1.last_pressure_delta > 0 ? "1" : "0"][circ2 && circ2.last_pressure_delta > 0 ? "1" : "0"]"
@@ -131,6 +135,10 @@
 	if(!powernet)
 		t += "<span class='bad'>Unable to connect to the power network!</span>"
 	else if(circ1 && circ2)
+		var/datum/gas_mixture/circ1_air1 = circ1.airs[1]
+		var/datum/gas_mixture/circ1_air2 = circ1.airs[2]
+		var/datum/gas_mixture/circ2_air1 = circ2.airs[1]
+		var/datum/gas_mixture/circ2_air2 = circ2.airs[2]
 
 		t += "<div class='statusDisplay'>"
 
@@ -139,12 +147,12 @@
 		t += "<BR>"
 
 		t += "<B><font color='blue'>Cold loop</font></B><BR>"
-		t += "Temperature Inlet: [round(circ1.air2.temperature, 0.1)] K / Outlet: [round(circ1.air1.temperature, 0.1)] K<BR>"
-		t += "Pressure Inlet: [round(circ1.air2.return_pressure(), 0.1)] kPa /  Outlet: [round(circ1.air1.return_pressure(), 0.1)] kPa<BR>"
+		t += "Temperature Inlet: [round(circ1_air2.temperature, 0.1)] K / Outlet: [round(circ1_air1.temperature, 0.1)] K<BR>"
+		t += "Pressure Inlet: [round(circ1_air2.return_pressure(), 0.1)] kPa /  Outlet: [round(circ1_air1.return_pressure(), 0.1)] kPa<BR>"
 
 		t += "<B><font color='red'>Hot loop</font></B><BR>"
-		t += "Temperature Inlet: [round(circ2.air2.temperature, 0.1)] K / Outlet: [round(circ2.air1.temperature, 0.1)] K<BR>"
-		t += "Pressure Inlet: [round(circ2.air2.return_pressure(), 0.1)] kPa / Outlet: [round(circ2.air1.return_pressure(), 0.1)] kPa<BR>"
+		t += "Temperature Inlet: [round(circ2_air2.temperature, 0.1)] K / Outlet: [round(circ2_air1.temperature, 0.1)] K<BR>"
+		t += "Pressure Inlet: [round(circ2_air2.return_pressure(), 0.1)] kPa / Outlet: [round(circ2_air1.return_pressure(), 0.1)] kPa<BR>"
 
 		t += "</div>"
 	else

tgstation.dme

@@ -105,12 +105,15 @@
 #include "code\ATMOSPHERICS\components\trinary_devices\mixer.dm"
 #include "code\ATMOSPHERICS\components\trinary_devices\trinary_base.dm"
 #include "code\ATMOSPHERICS\components\unary_devices\cold_sink.dm"
+#include "code\ATMOSPHERICS\components\unary_devices\cryo.dm"
+#include "code\ATMOSPHERICS\components\unary_devices\Freezer.dm"
 #include "code\ATMOSPHERICS\components\unary_devices\generator_input.dm"
 #include "code\ATMOSPHERICS\components\unary_devices\heat_exchanger.dm"
 #include "code\ATMOSPHERICS\components\unary_devices\heat_source.dm"
 #include "code\ATMOSPHERICS\components\unary_devices\outlet_injector.dm"
 #include "code\ATMOSPHERICS\components\unary_devices\oxygen_generator.dm"
 #include "code\ATMOSPHERICS\components\unary_devices\portables_connector.dm"
+#include "code\ATMOSPHERICS\components\unary_devices\tank.dm"
 #include "code\ATMOSPHERICS\components\unary_devices\unary_base.dm"
 #include "code\ATMOSPHERICS\components\unary_devices\vent_pump.dm"
 #include "code\ATMOSPHERICS\components\unary_devices\vent_scrubber.dm"
@@ -119,7 +122,6 @@
 #include "code\ATMOSPHERICS\pipes\manifold4w.dm"
 #include "code\ATMOSPHERICS\pipes\pipes.dm"
 #include "code\ATMOSPHERICS\pipes\simple.dm"
-#include "code\ATMOSPHERICS\pipes\tank.dm"
 #include "code\controllers\configuration.dm"
 #include "code\controllers\failsafe.dm"
 #include "code\controllers\master_controller.dm"
@@ -384,13 +386,11 @@
 #include "code\game\machinery\cell_charger.dm"
 #include "code\game\machinery\cloning.dm"
 #include "code\game\machinery\constructable_frame.dm"
-#include "code\game\machinery\cryo.dm"
 #include "code\game\machinery\deployable.dm"
 #include "code\game\machinery\door_control.dm"
 #include "code\game\machinery\doppler_array.dm"
 #include "code\game\machinery\droneDispenser.dm"
 #include "code\game\machinery\flasher.dm"
-#include "code\game\machinery\Freezer.dm"
 #include "code\game\machinery\hologram.dm"
 #include "code\game\machinery\igniter.dm"
 #include "code\game\machinery\iv_drip.dm"