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Dudley's (New, Improved) Dungeon

< Sep 8th, 2009 >xCheckPoint
                    
                    
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d "Once again, Dudley - you're sure we're still on the right path?"
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@ "Trust me, Dogley. Next room we'll find the stairs..."
The trouble with trapdoors...
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14 Comments

#1 SmashFan2005 Tue, 8 Sep 2009 01:15:09
That's why I always love pickaxes...

#2 Loof42 Tue, 8 Sep 2009 05:25:58
I bet there's a corridor hidden behind the blind spot.

#3 anther Tue, 8 Sep 2009 06:41:42
Ouch. If this were ADoM I would say to start kicking the walls... but this is Nethack, and without the right scroll, spell, or piece of equipment, there's no guarantee you'll ever find that door. I feel for you, Dudley... ouch.

#4 Factorial Tue, 8 Sep 2009 06:58:44
This brings a question to mind: if you're standing next to a hidden door, and there's nothing else notable adjacent to you (say, a trap), what is the exact probability of finding the door by [s]earching once? Does this probability ever change?

/me heads off to wikihack

#5 Factorial Tue, 8 Sep 2009 07:18:22
Got it... assuming 0 luck and no lenses or excalibur, the chance of finding an adjacent door is 14%. To ensure a good (>95%) probability of finding a door, one would need to search a location 20 times (although, to ensure this probability, Dudley would only need to search every third location, since all adjacent squares are checked simultaneously.

To ensure that the entire perimeter of that given area is checked, Duds would need to n20s at 19 squares (this checks some perimeter squares twice, of course). The probability of finding the hidden door, assuming there is only one (already an unlikely assumption), can be expressed as a binomial distribution.

At most, Dudders would find the door on the very last of the 19 squares (assuming he finds it in the 95% probability range). This means it would have taken at most 380 turns just to find a door out of the area. Although, I've made several assumptions about certain probabilities and conditions, so this may not be a likely estimate of the probability.

If I were even more bored and if it weren't 3:18 AM here, I might calculate the probability distribution for the number of turns without all those assumptions... but I need some sleep now.

Also, I hate trapdoors.

#6 Anonymous Tue, 8 Sep 2009 07:33:14
Also, doors are more likely to appear in vertical walls than in horizontal ones. Experienced NetHackers (or NetHackers who studied the level generation code) are better at guessing where the door will be.

#7 Sorceror Tue, 8 Sep 2009 08:21:24
Factorial: or, on the other hand, someone came along and sealed off the /only/ doorway out with industrial cement.
Last edited: Tue, 8 Sep 2009 08:21:46

#8 NobodySpecial Tue, 8 Sep 2009 10:59:10
At least Dudley hasn't mistaken his own footprints for heffalump tracks.

#9 Factorial Tue, 8 Sep 2009 18:34:34
Sorceror: Knowing Dudley's luck, that did happen :p

NobodySpecial: Wasn't that particular one a woozle (and wizzle once Piglet joined in)?
(Winnie-the-Pooh story for those who don't know. I used to read those all the time.)

#10 Quint Tue, 8 Sep 2009 19:34:36
Someone should teleport in the Spelunker (from Spelunky) to help him out.

#11 Anonymous Wed, 9 Sep 2009 04:11:22
Are you kidding? The spelunker dies even more easily than Dudley does!

#12 Dajaaj Wed, 9 Sep 2009 09:43:25
Ah, Dudley gets familiar with what I call "The Searching Game."

Seriously though, Rogue had the probability of doors being secret be related to dungeon depth. Nethack appears to have, shall we say, done away with that particular idea, much to my chagrin and the chagrin of characters of mine who have died by kicking the walls in sheer frustration.

#13 mijae Wed, 9 Sep 2009 11:01:54
Great use of the panels! And fun concept too - takes me back to my first games of nethack years ago. ("WHERE DO I GO?! I'M STUCK NOW!!")

#14 NobodySpecial Wed, 9 Sep 2009 13:07:12
Wasn't that particular one a woozle (and wizzle once Piglet joined in)?

Yes, that sounds right. I guess I just lost Pooh points. >_<

Last edited: Wed, 9 Sep 2009 13:07:37

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