Bay 12 Games Forum

I've just gotten the newest DF (last version I had was 31.18), and I'd still like to try a glacial worldgen. However, the wiki doesn't have current versions of worldgens. Does anyone either have a current version of glacial worldgen or know exactly what I need to change/add to it?
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Does anyone happen to know whether fluid mechanics are deterministic, deterministic with hidden variables, or hidden? That is, which of the following are true:

1) If you know the fluid and wall placement, you can fully determine how fluid will move.
2) If you open the same save twice, fluid will move the same way both times.
3) If you open the same save twice, fluid will move differently.
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Is there a list somewhere of which new features correspond to which updates? E.g. 31.18 went with an update to ghosts, etc.?
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So I'm getting some weird results when I'm mixing lava, water and ice in general. I've tried 3 different situations and gotten results I can't yet figure out.

Situation 1:
See http://www.bay12forums.com/smf/index.php?topic=87141.0

When the water spreads (as explained there), it turns into ice, so just before getting the obsidian, we have 1/7 lava on top of 7/7 water.

Situation 2:

When a ghost opened a hatch from my ring of fire over some built ramps, the lava spread. I got the same result as in situation 1, as far as I could tell (I didn't notice it in time to observe it over time).

Situation 3:

I decided to test what would happen if I opened a hatch and closed it very quickly. The final result was that there would be 5/7 lava on top of 7/7 water near some ice. I stepped through, and stuff happened as follows:

1) The ice melted (within 4 or so ticks)

2) Steam appeared where the lava was.

3) The lava disappeared, and the water below it turned to obsidian. Note: There had been stone on top of the ice beforehand; the stone got trapped in the new obsidian, and it still appeared there afterwards.

4) The 4 corners of the area melted (that is, they melted in an x pattern)

5) Above the 2 uncovered corners of the x, 2 water appeared each.

6) The water spread, and then turned to ice.

Anyone have any idea how this is supposed to work?
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So I have memorial slabs for some of the dwarven merchants who visited. However, their corpses are still on the map, so when I create coffins and allow them for general burial (for the merchant guards), they seem to be taken by the merchants (who are already memorialized) first. Is this a bug or is it supposed to happen?

Also, I'm getting that for the guards that do get a coffin, the coffin is acting like a tomb (that is, it's allowing me to reassign it, even though the guard is already dead, but not yet buried there).

ETA: And my dwarves have brought the corpse of one of the guards back to the tomb, and the ghost is still out there, even though he's been entombed. Any ideas?
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My mechanic recently got made a duchess consort; afterwards, she had a baby. Now, she seems to be on permanent break (6 months without working, although she did attend 2 parties, drink, and eat).

Any idea why and/or how to make her work again? I've drafted her and undrafted her, but that didn't do anything.
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Recently, I've been trying to work with a volcano in a flat glacier; just now I've perfected an obsidian farm that works without any pumps as long as you have both; all that's necessary is walls, bridges, levers, and of course, some miners.

For those who are asking "why no pumps?": I just happen not to like them. I find it annoying to have to get pipes so often, since they have to be made from non-replenishable resources.

Top level:
OOOOO
O_BBD
d_BBO
O_BBD
OOOOO

The right side should be connected to some lava, which can be obtained from the volcano.

Bottom level:
OOOII
OoIII
OoIII
OoIII
OOOII
Legend:
O = wall
D = mechanical door
d = dwarf-open door
_ = blank space; place to dig a channel
o = place to be filled with obsidian. May or may not be filled with ice at any time.
I = ice
B = Bridge (aligned vertically and raisable); should have a floor beneath them.

To operate:

Leave the right bridge down, keep the right doors and left bridge up. Open the right doors, and fill the area above the right bridge with lava (3/7 is best). Close those doors. Then let the left bridge down. The lava will spread out approximately evenly. This will melt the ice in the center of the bottom, letting water spread to the leftmost squares (as they will be empty after operation). Lava will then spread further, mixing with the ice and leaving obsidian at the bottom of the left. Close the middle bridge and right bridges to clear the lava, wait for the melted water to ice up again, and channel out the newly formed obsidian. Rinse, repeat.

This can be remade on a grand scale, which is my next project.
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I created a world using the glacial worldgen (modded so that seeds weren't used, as the kind of place I was looking for wasn't in the seeded world); when I made the fort, I found that no animals ever invaded. Is that because all the animals are dead, none of the animals are found in my area, or is it something else?

Elves and humans also happened to die out in the entire world, in case that's relevant.
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