atmospherics.dm

/*
Quick overview:

Pipes combine to form pipelines
Pipelines and other atmospheric objects combine to form pipe_networks
	Note: A single pipe_network represents a completely open space

Pipes -> Pipelines
Pipelines + Other Objects -> Pipe network

*/

obj/machinery/atmospherics
	anchored = 1

	var/initialize_directions = 0

	process()
		build_network()
		..()

	proc
		network_expand(datum/pipe_network/new_network, obj/machinery/atmospherics/pipe/reference)
			// Check to see if should be added to network. Add self if so and adjust variables appropriately.
			// Note don't forget to have neighbors look as well!

			return null

		build_network()
			// Called to build a network from this node

			return null

		return_network(obj/machinery/atmospherics/reference)
			// Returns pipe_network associated with connection to reference
			// Notes: should create network if necessary
			// Should never return null

			return null

		reassign_network(datum/pipe_network/old_network, datum/pipe_network/new_network)
			// Used when two pipe_networks are combining

		return_network_air(datum/network/reference)
			// Return a list of gas_mixture(s) in the object
			//		associated with reference pipe_network for use in rebuilding the networks gases list
			// Is permitted to return null

		disconnect(obj/machinery/atmospherics/reference)

		update_icon()
			return null