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Polaris/code/ZAS/_docs.dm
2014-02-19 18:28:32 -07:00

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/*
Zone Air System:
This air system divides the station into impermeable areas called zones.
When something happens, i.e. a door opening or a wall being taken down,
zones equalize and eventually merge. Making an airtight area closes the connection again.
Control Flow:
Every air tick:
Marked turfs are updated with update_air_properties(), followed by post_update_air_properties().
Edges, including those generated by connections in the previous step, are processed. This is where gas is exchanged.
Fire is processed.
Marked zones have their air archived.
Important Functions:
air_master.mark_for_update(turf)
When stuff happens, call this. It works on everything. You basically don't need to worry about any other
functions besides CanPass().
*/
//#define ZASDBG
#define AIR_BLOCKED 1
#define ZONE_BLOCKED 2
#define BLOCKED 3