Editing User:Corona688

A few little designs I've been playing with in-game.

== Airlock Depot Entrance ==
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This setup is intended to solve two probems:  Preventing monkeys from stealing my stonecarver's precious masterpiece mugs, and stopping giant cave swallows from breaking up the party.  The trade depot is 1 level underground, roofed with natural stone, led to by ramps to the right with a 2 by 5 bridge in the way, rising to the east.  The long distance between bridge and depot keeps traders from going squish.

Everything marked in red is operated by the same lever.  Pulling the lever seals off the depot from outside by raising the bridge, allows inside access by opening the inner doors, and presents a tempting line of traps for goblins and monkeys while still letting in liasons and migrants.  The grey, manually-operated doors let you still lock the depot entrance should the red ones jam.

== R/S Flip Flop ==

A flip-flop is a traditional digital logic device with a memory of one bit, two inputs, and two outputs that are always opposites.  Operating one input sets always sets the flip-flop to one state, operating the other input always flips it to the other, and operating both at the same time should be avoided.

I wanted a kind of switch that could be operated by soldiers, i.e. pressure plate input only.  A soldier waits on a pressure plate, flipping the flip-flop and opening the bridge, and most importantly, <em>leaving the bridge open</em> once opened!  Closing with soldiers on it would be very bad.  When I want to close it, I station a soldier on a different pressure plate.

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All pressure plates are water 3-7.  All hatches have emtpy space beneath them into an aquifer or other convenient drain.  Pressure plates and doors linked to each other have matching backgrounds.  The two uncolored, inner doors are the manual inputs which you can operate any way you please.  They are normally closed, and should be opened only to change states.

It tends to oscillate for a little bit when first given water unless you keep a dwarf on one(and ONLY one!) of the input plates.  After that it is pretty stable.  Switching states is reliable but not especially fast.  It consumes little water since 3 out of 4 doors will be closed at nearly all times.

== Hex Plates ==

Trying to build a slightly organized fort instead of a mismanaged sprawl, I've been organizing areas into hexagon plates.  Each plate can contain a small related workflow, i.e. plant processing -> weaving -> dyeing.  Or it can hold cheap housing for 10 or good housing for 5.  Or you can hollow out an entire hex for a dining room, stockpile, or depot area.

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Digging everything as ramps makes it easier to install, say, marksdwarves above your trade depot someday.