User talk:Hussell

Assorted Devices

In the machines you've built, how does the water drop below 7/7 when input cuts off? VengefulDonut 14:40, 9 November 2009 (UTC)

Either it doesn't, because the 7/7 water is deliberately trapped in order to keep the pressure plate from sending a signal, or a door opens to allow the 7/7 water to spread into two or more squares, lowering it enough to trigger a change. Closing doors annihilate any water in their squares. Hussell 14:48, 9 November 2009 (UTC)

Oh, I see. I was thrown off since you have the drainage doors on the same side as the input control doors. This seems like it could cause unnecessary complications. In your data latch, for example, you will need to do some extra work to get it running for the first time since the closed drainage doors will prevent any water from triggering the yellow and cyan pressure plates. It seems this initialization problem could be avoided by placing the yellow and cyan doors to the right of the plates. VengefulDonut 23:03, 9 November 2009 (UTC)

I'm aware that it's awkward to get the things running the first time. It's a disadvantage of using doors for everything. Unfortunately, it seems to be an unavoidable disadvantage. In the Data Latch, if the changes you suggest are made, then the output signals will both go to CLOSED while the clock signal is off if the data signal turns on and off. Even if the plate trigger threshold is lowered, turning the data signal on and off would eventually annihilate enough water to send both outputs to the CLOSED state. Hussell 00:52, 10 November 2009 (UTC)

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Bro, you should try some gear toggles. They are instant, I think, and toggle. Also, the pumps may actually only check for power every so ofton. Maybe this is the delay.--Zchris13 17:15, 13 November 2009 (UTC) Good luck.

The gear toggles do indeed toggle instantly. However, although logic can be done with power transmission, ultimately power only affects screw pumps and millstones, while pressure plates and levers affect a long list of things. So a screw pump pumping onto a pressure plate will almost certainly have to be involved if one intends to use gears. My testing has shown conclusively that a screw pump continues to pump for 50 steps after losing power. This is true for both manual and automatic pumps. One way to see this is that the screw pump animation (which cycles between two characters every 25 steps, apparently using a modulo of a global time counter) changes to its inactive state exactly 50 steps after power is removed, regardless of when the animation would normally change. In addition to this, my tests have shown that water continues to be pumped for exactly 50 steps after power is lost, and no longer. I encourage you to do your own testing if you aren't convinced. Although I'm totally convinced, it would probably be a good idea for someone else to confirm my observations before the wiki article is changed. --Hussell 18:38, 13 November 2009 (UTC)

Congrats on the repeater. And what you found out about stacked pumps can be used to make repeaters of very specific durations (eg: 120 divides into 1200). Based on the 100 tick pressure plate limitation, it seems that the ideal clock would output 100 ON / 100 OFF. VengefulDonut 15:56, 14 November 2009 (UTC)

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Why don't you put it on the fluid logic page? --Kami 17:37, 21 November 2009 (UTC)

Still in the testing stage. A couple of my key dwarfs were injured recently, and it seems it'll be a few game-years before they recuperate and I can proceed. Meanwhile, I'm taking care of some neglected fortress-improvement projects. Also, it's not absolutely clear to me that these door-based contraptions are superior to the bridge-and-floodgate system, since the change in delay isn't that great, and it's a lot easier to synchronize bridges and floodgates. If there were no delay in pressure plate deactivation, it would be no contest, but as it is, some state transitions take a couple hundred steps, while others happen almost instantly. This can lead to problems in larger circuits if one isn't extremely careful. I've already had to revise several of my designs, and there are still some problems I'm aware of, but haven't figured out how to solve. --Hussell 15:06, 22 November 2009 (UTC)

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I think it would be significantly easier for you if you used used template:diagram rather than template:RT for your designs. Here's an example using your latch:

█	█	█	█	█
≈	┼	┼	^	█
█	█	█	█	█
≈	┼	┼	^	█
█	█	█	█	█

VengefulDonut 13:12, 1 December 2009 (UTC)