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code/modules/atmospherics/machinery/components/binary_devices/binary_devices.dm

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+/obj/machinery/atmospherics/components/binary
+	icon = 'icons/obj/atmospherics/components/binary_devices.dmi'
+	dir = SOUTH
+	initialize_directions = SOUTH|NORTH
+	use_power = IDLE_POWER_USE
+	device_type = BINARY
+	layer = GAS_PUMP_LAYER
+
+/obj/machinery/atmospherics/components/binary/SetInitDirections()
+	switch(dir)
+		if(NORTH)
+			initialize_directions = NORTH|SOUTH
+		if(SOUTH)
+			initialize_directions = NORTH|SOUTH
+		if(EAST)
+			initialize_directions = EAST|WEST
+		if(WEST)
+			initialize_directions = EAST|WEST
+/*
+Iconnery
+*/
+/obj/machinery/atmospherics/components/binary/hide(intact)
+	update_icon()
+
+	..(intact)
+/*
+Housekeeping and pipe network stuff
+*/
+
+/obj/machinery/atmospherics/components/binary/getNodeConnects()
+	return list(turn(dir, 180), dir)