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Author Topic: Spontaneous combustion in cavern?  (Read 1000 times)

mirrizin

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Spontaneous combustion in cavern?
« on: November 01, 2013, 01:01:22 pm »

So, this happened. First, I was trying to construct a floor around the edge of a bridge. Made a mistake, and dropped a block down the volcano beneath.

Very strangely, the magma sea was revealed but as far as I can tell, the dwarf involved fell back onto the bridge and walked away. I checked the casualties list and only found a bird missing, one that I'm pretty sure was already missing before the incident.

...I can just picture him hanging on the edge thinking "By Armok that's a long way down! And what a way to die!" before staggering back in a cloud of dust, mildly disappointed...

Except it revealed another magma tube opening up in cavern 2.

Then I found a secret tunnel to 2 and explored it, nothing but dirt, and another tunnel to 3, which was lush with vegetation...

I explored 3 for a bit, and sent the dwarves back up to find a wildfire spreading across the surface of 2.

Is this a bug where lava tubes automatically start forest fires underground? The stone dropped down the volcano couldn't possibly have affected magma levels in the tube, right?

Very strange. Thoughts?
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DarkArtemisFowl

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Re: Spontaneous combustion in cavern?
« Reply #1 on: November 01, 2013, 01:53:38 pm »

I believe it may have been some lava that leaked out of the tube you found through some form or another. Did you track the origin of the wildfire? If you did, it is possibly that a small amount of magma escaped and started the fire. Or, maybe a creature made of fire, such as the fire imp.
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Button

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Re: Spontaneous combustion in cavern?
« Reply #2 on: November 01, 2013, 02:24:37 pm »

A fire on a dirt-only level? There should be nothing to catch fire down there... you need at least cave moss to catch fire. Is it possible the fires you saw were set by a Fire Imp or Of Fire/Beware Its Fire forgotten beast?
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mirrizin

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Re: Spontaneous combustion in cavern?
« Reply #3 on: November 01, 2013, 04:36:49 pm »

A fire on a dirt-only level? There should be nothing to catch fire down there... you need at least cave moss to catch fire. Is it possible the fires you saw were set by a Fire Imp or Of Fire/Beware Its Fire forgotten beast?
That's possible. I now imagine what happened is the fire started before I got a good look at the entire level. Next time I play I'll take a closer look.
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gabandre

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Re: Spontaneous combustion in cavern?
« Reply #4 on: November 01, 2013, 04:47:55 pm »

the moss must be under the mud. dirt only caverns have moss, it just looks like dirt because its muddy. So it can catch fire
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mirrizin

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Re: Spontaneous combustion in cavern?
« Reply #5 on: November 01, 2013, 06:05:08 pm »

I think that it is.
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Aslandus

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Re: Spontaneous combustion in cavern?
« Reply #6 on: November 06, 2013, 11:23:51 pm »

Isn't there some kind of magma mist? If you dropped stone from a high z-level into the magma, it may have... splashed a bit... beware of !!dwarves!!

smjjames

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Re: Spontaneous combustion in cavern?
« Reply #7 on: November 07, 2013, 02:39:56 am »

Isn't there some kind of magma mist? If you dropped stone from a high z-level into the magma, it may have... splashed a bit... beware of !!dwarves!!

The mist wouldn't have teleported over to the second magma tube.

Are there any recent combat logs involving an imp? Might have been an imp attacking an animal or trying to take a potshot at your dwarves but missed.
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MrWillsauce

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Re: Spontaneous combustion in cavern?
« Reply #8 on: November 07, 2013, 09:57:18 am »

I think when the block fell down the volcano into the magma sea that it slightly pressurized the magma, thus causing the magma pipe to overflow ever-so slightly and catch the cavern flora on fire.
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