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[AncientEnemy]

Code: [Select]

~~~ River/brook
WwW Walls, wall to be channeled out after construction
WBW Raising Bridge (1 tile, direction doesn't matter) linked to plate
WPD Pressure plate set to 7-7, Door for access
WFW Floodgate linked to plate
WWW

just build it, link the bridge and floodgate to the plate, and connect it to the river.

operates on a handy fact that I realized while replying to another post; raising bridges used as a 'door' have the opposite ON/OFF setting of doors/floodgates/hatches. you don't even need an extraneous lever during setup, since the thing starts in the 'ready' position.

-water flows in, plate goes on
-bridge shuts, floodgate opens
-water flows onto floodgate, plate goes off
-floodgate shuts (smashing the water on it), bridge opens
-repeat

I don't know why I'm obsessed with repeaters, the fort I have going right now is just an elaborate testing ground for little mechanical widgets.

optionally, you could leave a passageway beyond the floodgate, and this setup would let in a slow but steady stream of water, removing any pressure in the process. it also has the odd (and potentially very useful) effect of keeping the passageway/cistern beyond the floodgate at a maximum of 3-4 water (probably because it reaches an equilibrium where the cistern is at 3-4, so it lets in a maximum of 3-4 water each cycle, then smashes a tile of 3-4)

[Untelligent]

Awesome! :D

[Lord Dullard]

It would be pretty cool to just link up tons of spear traps all around you fort to this. And anything that came close to you would be instantly skewered.

...including your dwarves, which could be bad.

[AncientEnemy]

It would be pretty cool to just link up tons of spear traps all around you fort to this. And anything that came close to you would be instantly skewered.

...including your dwarves, which could be bad.

actually, i've also come up with a design for an automated pet destroyer (well, the original idea was someone else's in the 'dwarven design cesspool' thread awhile back, it just combines well with automation) that would work (i assume) just as well against enemies. simply make a direct path covered in spear traps, all marked as restricted traffic, and then a longer path around it. pets (and probably invaders) will take the direct path because they don't bother with the traffic zones, while dwarves go around.

it'll still shred diplomats tho.

Code: [Select]

WWWWWWWWWWWWWWWW walls
WWWWW      WWWWW
WWWW  WWWW  WWWW
      RRRR       Repeating spikes, set to restricted traffic
      RRRR 
WWWW  WWWW  WWWW
WWWWW      WWWWW
WWWWWWWWWWWWWWWW


[Atlas]

dwarves themselves don't always bother with the traffic zones...

[Martin]

it'll still shred diplomats tho.

Children too. And dwarves when the hallway clogs and the restricted cost is lower than the 'lie down and get walked over' cost.

[Chromie]

Bah, let the fools get slaughtered!

[Aldaris]

It's not all the hard, just  make sure the restricted cost is 100 or something, and make sure the alternative route is only 4-5 tiles or so longer. Great ide, by the way. You could put a lever operated floddgate in front of this one in order to on/off the whole setup for, say... maintainance.
(Read: Recovering the iron and bones.)

[AncientEnemy]

the thing with the auto-stabber is that the extra pathing cost to go around is either exactly the same, or a mere 4 more(depending on if diagonals cost more to travel than orthagonal)

Code: [Select]

1234567
versus

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1     7
 2   6
  345

so even with massive dorf traffic they aught not prefer the spiked path

i had one of these going for several months that was only 1 tile wide with no dividing wall like so:

Code: [Select]

WWWWWWW
WW   WW
  RRR 
WWWWWWW
as the only route between my meeting area and -everything else- and not a single dwarf got stabbed.

the difference in traffic cost is just too high, 25x4 restricted tiles or like 5-9 regular tiles. and i though children pathed according to traffic like other dorfs anyway

[kotekzot]

it's just natural selection if they decide to walk to their spikey death. great design.

[betamax]

...it also has the odd (and potentially very useful) effect of keeping the passageway/cistern beyond the floodgate at a maximum of 3-4 water (probably because it reaches an equilibrium where the cistern is at 3-4, so it lets in a maximum of 3-4 water each cycle, then smashes a tile of 3-4)

Congratulations, you've just created the automated dwarven swimming pool!

[KirigStonebeard]

Wouldn't this repeater design be extraordinarily slow thanks to the delay of the bridge?

And the constant 3-4 level thing is bizarre, I can't think of any reason whatsoever it should do that... with the plate set to 7-7 there should ALWAYS be a full tile of water to flow into the cistern when the gates open, and when they close they should have about the same level as the rest of the cistern to destroy, keeping the level constant until the next full tile's released... odd...

[Martin]

Well, any really useful repeater needs to be somewhat slow - otherwise the thing it's triggering won't happen before the switch flips. Try hooking a spike trap to a lever and set the lever to repeat - the trap rarely, if ever, fires because the switch is toggling before the trap can fire. The bridge (should) pretty much force the repeater to be just slow enough to be reliable.

[betamax]

Well, any really useful repeater needs to be somewhat slow - otherwise the thing it's triggering won't happen before the switch flips. Try hooking a spike trap to a lever and set the lever to repeat - the trap rarely, if ever, fires because the switch is toggling before the trap can fire. The bridge (should) pretty much force the repeater to be just slow enough to be reliable.

Oh, so that's what a repeater is for! I thought it was just a novel water delivery system.

[Mechanoid]

This is great.
I was just about to give up on my fort because of problems making a repeater; attempting to smash water to remove it from the map due to a lack of chasm, and needing one in order for my mechanical water systems (noble flooding pipes) to function.

Damn, it's so simple!
Someone, quick, PUT IT ON THE WIKI!

... NOW!