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Author Topic: The Parting of the Sea (ocean-aquifer bug)  (Read 563 times)

LASD

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The Parting of the Sea (ocean-aquifer bug)
« on: January 27, 2008, 06:23:00 am »

The version is plain 33g, The world was created in 33c

The Parting

I accidently managed to part the sea by draining it to an aquifer.

This picture is the bottom of the sea. I dug until I found a damp wall of an aquifer. Then I dug so that there was only one wall of seawall. I first dug the aquifer's wall then immediately the seawall. The water's collided and flowed to the corridor.

The ramp wasn't there when the sea parted. I unsuccessfully tried to drain the whole sea after I understood what happened.

The stones on the bottom of the sea are covering the caskets of my dwarves. I thought it would be nice to bury them there.
   
This is 1 Z-level down. Only the circled area was there when the bug occurred. The whole floor was completely dry until I dug the irrelevant ramp. The water seems to be flowing down the stairs since the stairs became muddy, but somehow there's no leaking.
   
This is 1 Z-level down from the previous picture. The room was all 7 before I dug to the ocean and has stayed that way all the time.
   
Under this floor is 1x1 stairway covered completely in water. I think the water came from the aquifer above it.

I don't know which aquifer the ocean is draining to. I assumed it was the one under the muddy stairs.

The save is here. I have reclaimed the fort after the bug and dug some ramps and tunnels under the ocean, but it hasn't changed anything. The ocean is still like it is in the video.

[ January 27, 2008: Message edited by: LASD ]

[ January 27, 2008: Message edited by: LASD ]

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penguinofhonor

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Re: The Parting of the Sea (ocean-aquifer bug)
« Reply #1 on: January 27, 2008, 02:54:00 pm »

My god, that's amazing! Does it stay the same or is it slowly draining? I think you should drain the ocean.
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Draco18s

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Re: The Parting of the Sea (ocean-aquifer bug)
« Reply #2 on: January 27, 2008, 03:09:00 pm »

You can't drain the ocean, I tried.  Water simply flows in from the edge of the map faster than you can pump it, channel it, or otherwise destroy it.

BTW, pic #3 broken.

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LASD

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Re: The Parting of the Sea (ocean-aquifer bug)
« Reply #3 on: January 27, 2008, 03:12:00 pm »

quote:
Originally posted by penguinofhonor:
<STRONG>My god, that's amazing! Does it stay the same or is it slowly draining? I think you should drain the ocean.</STRONG>

The ocean seemed to find some kind of balance immediately. The water in the middle  suddenly had disappeared and the sides became slopes of water.

I tried to get the bottom layer of water to drain, but gave up after numerous failures.

It would be cool if someone managed drain the ocean completely in this save.

P.S. I also tried to make the sea settle down, but the irrelevant ramp turned out to be relevant when I plugged the corridors to the aquifer and to the stairs with cave-ins. I have no experience of pumps, so I haven't tried them. But by pumping I think I could get a floodgate to a strategic spot and stop the ocean from draining.

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THLawrence

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Re: The Parting of the Sea (ocean-aquifer bug)
« Reply #4 on: January 27, 2008, 03:30:00 pm »

quote:
Originally posted by Draco18s:
<STRONG>You can't drain the ocean, I tried.  Water simply flows in from the edge of the map faster than you can pump it, channel it, or otherwise destroy it.

BTW, pic #3 broken.</STRONG>


Draining it this way causes it to drain faster then it refills. I think it has to do with the pressure system. If the water is at least 2 tiles deep and above the aquifier it will be pushed into the aquifier and drain away.
I've done it on a larger scale.
Ocean Drain

The ocean doesn't refill it fast enough since it is drained into the aquifier. I've played a little while past this and the water continues to slowly drain away. Really low frame rate though.

I've also tried it on a much larger scale involving 38 z-levels of water but that froze my computer.

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Draco18s

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Re: The Parting of the Sea (ocean-aquifer bug)
« Reply #5 on: January 27, 2008, 05:46:00 pm »

Odd.
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