The Bridge

Lazers 2.0

00:07

0

Q: What's the name of this retro Simpsons videogame?

I remember playing this videogame when I was a teen. Does anyone know its name?

game-identification

Lazers 2.0

00:27

0

Q: 1.15 - How to test for "air" in Hotbar - /execute Command

How do I test for Air in Slot 9? with the /execute command? I've came up with this so far but it doesn't work /execute if entity @a[nbt={Inventory:[{Slot:8b,id:"minecraft:air"}]}] run give @a minecraft:stick What did I do wrong?

minecraft

Ave

02:07

@fredley wow.

Lazers 2.0

0

Q: Minecraft, How to create/modify rollercoaster mod

my son wants to create / modify rollercoaster mod. I'm a programmer but just found out you can create your own Minecraft mod with java. Where do I start?

minecraft minecraft-mods

0

Q: How to install the same game in a Switch console with a parent account and a second Switch console with a child account?

I have: A Nintendo Switch with both an adult account and a child account A Nintendo Switch Lite with only a child account (the same child account also present in the first console) I actually have two related questions (both are about installing the same game in two different consoles): I'v...

nintendo-switch nintendo-account

Lazers 2.0

04:16

0

Q: Where does the game get the Unstable Rate value in osu!catch?

If you completed a beatmap, you will be presented with the results screen, and hovering on the Performance Graph will show you this: This got me thinking, osu!catch is not really a timing based game, so why does it show the unstable rate and hit error? Where does it get these values? Accordi...

osu

user15026

05:21

GodEmperorDune

@Ash @Yuuki kingdom of loathing crimbo is here

unrelated:

user15026

Cool. :)

Yuuki

@GodEmperorDune Has Jick left the company?

GodEmperorDune

@Yuuki no, the results were a calendar month of all mr A purchases money donated to RAINN and then ongoing 10% donated to random charities

the donations were done by someone other than jick but i don't know if they have been independently verified

Lazers 2.0

05:39

0

Q: Ships defending hypergates instead of using them in Galactic Civilization III

I have two hypergates linked. With a ship selected I right-click a hypergate. The ship is defending the hypergate instead of using it. How do I tell the ships to use the hypergates instead of sitting there like a dunce defending them?

galactic-civilizations-3

Lazers 2.0

07:43

0

Q: How can I determine the version of an Angband savefile?

I have a few really old save files. I don't know what version of of Angband created them. How can I determine that, so I can find the correct version to keep playing them?

angband

Lazers 2.0

09:05

0

Q: Keyboard stopped detecting multiple keypresses

I have been playing CSGO on my Lenovo Ideapad 300-15isk for more than two years. Few days back when I was playing CSGO multiple keypresses stopped working. It still detects two keys pressed at once. But, it is not detecting more than two keys. Now I can't move diagonally while shooting or I can't...

counter-strike-global-offensive hardware keyboard

Memor-X

13:36

is there a point where the Licensed Lego Games become more reliable? have retried the first level of Lego Batman several times and every time that remote car where Robin gets the Technology suit is always the problem where it will barely move. sometimes it'll run fine for a bit but then either i have to stop it because of enemies or it just stops on it's own

i get the feeling it's some sort of glitch with how the game was built but from how i understood the Licensed Lego Games don't actually change all that much between them so don't know if any glitches get resolved in later games

Ronan

13:54

@fredley I'm pretty sure that what the worst solution to a problem I've ever written

I might have to go back and redo it

Lazers 2.0

14:56

-1

Q: If i turn off my pc while downloading fortnite, will it restart?

Plss i need answer, my wifi loses signal, ohmmwnsnsmsnms

fortnite-battle-royale epic-games-launcher

Lazers 2.0

15:58

1

Q: How do you use the water cannon in Marvel Spider Man ultimate power?

One daily quest I get in Marvel Spider Man ultimate power from android to win a jewel, it's to use the water cannon. But I've passed many stages and I've never seen it. Where's that? Is it an item you have to buy? Is it a secret item? How do you use the water cannon?

android spider-man

Lazers 2.0

16:19

1

Q: What is the most efficient way to make Concrete from Concrete Powder?

I have an entire chest full of Concrete Powder that I want to turn into normal Concrete. What is the most efficient way to turn the Powder into Concrete?

minecraft minecraft-bedrock-edition

fredley

@Ronan I got as far as building an interactive version. I think following the left wall should work, so going to try and get that working now.

Ronan

Yeah I gave up on path finding and cheated

fredley

scum

Ronan

By cheating I mean breaking kayfabe

fredley

Ok, following the left wall found the oxygen, now to find the min path

badp

16:40

yeah I started taking random paths and that very reproducibly got me stuck in the same place every time

it's funny how 15a lets you take whatever algorithm and 15b rewards you if you took the correct* algorithm

curious what your 14a strategy was btw

Ronan

Basically save states

badp

I tried backtracking with 14a and quickly found myself unable to scale up to the later examples, let alone the actual puzzle

Ronan

Rather than pathing back to junctions to try the other branches just load a state when I was next to an unknown tile and move into it

badp

oh. For 15a I just did the 15b thing.

Ronan

Oh sorry 14

badp

16:45

14 is chemistry, yes

Ronan

14a was working backwards

badp

sure

and when you're just dealing with "1 FUEL" there aren't many ways to do it

Ronan

Keep a list of things I needed, take something off the list and add its ingredients (and negative outputs if I make a surplus) then keep going until it's just ore

I think it only took like 20 or so reactions

badp

I'm curious about that one, how do you make sure you're not going to be left with ore and negative outputs

fredley

@badp Still on 15a, just doing fucking djikstra

14 had some nasty corners

How did you do part 2?

badp

16:49

I cut myself on 14a enough that I looked for hints on Reddit, but didn't found much enlightenment other than "do binary search for 14b"

fredley

Yeah I did binary search with the target (1tr) as the starting top end. Probably could have saved a few iterations by choosing that better

badp

uh, I did it between 1 fuel and, uh 2 (a trillion / ore required for 1 fuel)

the 2 was empirically proven to be necessary :P

Ronan

I did between (tril / part1) and 100 times that

badp

for 14a I ended up putting the rules into graphviz

and that told me how to do the thing

GnomeSlice

holy shit that storm took out a fence section in my velociraptor enclosure

badp

16:51

GnomeSlice

that was intense

Ronan

@badp Negative outputs just means I made more of a thing than I needed, that's not a problem

badp

turns out, if you read the graph left to right top to bottom, and run the associated reaction, you're done

fredley

@badp I did bfs but I still ended up reacting things too early

had to put an explicit check

badp

I tried to go depth first and my fan out was like 25 over hundreds of choices

I tried to only consider items at the same "tech level" on that tree and that would just have let me consider 3 to the 50th power opportunities

gfycat.com/offbeatconfusedhornbill

Ronan

16:55

What do you mean by fan out? There's only ever 1 way to make an output

badp

yes but given 1 SHPSF, 2 SWCWH, 40 WFDXN, 67 WBMZG, 53 WBSL, 2 CQJDJ, 41 BWQN, 12 GMQVW, 48 PDRJ, 42 RSMC how do you choose which one to produce next

I found that I'd get suboptimal answers if I picked things in the wrong order

Ronan

So you start needing 1 fuel

Which means you need {"WLCFR":38,"GJKX":15,"LGMKD":44,"CBVXG":2,"GDKL":2,"FQGVL":77,"MKRCZ":10,"WJQD":29,"BWXGC":33,"PQCQH":19,"BKXD":24}

badp

because (from the first example in the problem explanation) I would expand 1 FUEL into 7 A, 1 E into 10 ORE, 1E

Ronan

Ah, you expand 7 A into 10 ORE and -3 A

Then next time you make A you get another -3 A

badp

okay but then what if I end up with 300 ORE -14 A

do I just ignore it

Ronan

17:01

You won't get -14 A

badp

no matter the order in which I do things?

Ronan

Because you don't make more A if you need less than 0

badp

hold no my numbers are wrong

1 FUEL => 7 A, 1 E => 10 ORE, -3 A, 1 E => 10 ORE, 4 A, 1 D => 20 ORE, -6 A, 1 D => 30 ORE, 1 A, 1 C => 40 ORE, -9 A, 1 C => 40 ORE, -2 A, 1 B => 41 ORE, -2 A ???

if, at each step, I choose to expand the first non-negative non-ore term (the one in bold)

fredley

Fuck, wrong answer.

now wat

badp

check if you're off by one

Ronan

17:08

> {"FUEL":1}
{"A":7,"E":1}
{"E":1,"A":-3,"ORE":10}
{"A":4,"D":1,"ORE":10}
{"D":1,"A":-6,"ORE":20}
{"A":1,"C":1,"ORE":20}
{"C":1,"A":-9,"ORE":30}
{"A":-2,"B":1,"ORE":30}
{"A":-2,"ORE":31}

badp

so anyway if you run the recipes in that order I described you immediately reach your answer without having to guess

though I suppose you won't know how much surplus of every material you'll have unless you also track that

Ronan

But producing surplus is fine

badp

sure

I'm just saying your algorithm produces more data

fredley

@badp It's probably that, I hope

Ronan

@badp What do you mean by more data?

badp

17:11

@fredley also surely there must be an easier way to get the length of the shorter route, mustn't there

fredley

It wasn't that

badp

@Ronan my algo won't tell you you also have 2 leftover A's

you don't need the actual route, just its length

fredley

@badp Given I'm using a djikstra library, maybe not?

badp

@fredley well that's great news if 15b lets you use dijkstra!

fredley

As in, I could traverse the entire maze left hand, then right hand, culling revisited nodes

Ronan

17:11

@badp But you need to know that in case enough of the surplus adds up that you can skip making an output

fredley

But chucking it into djikstra is easier

badp

@fredley well that's great news if 15b lets you use dijkstra!

I mean you can probably still do it with dijkstra

fredley

 # ############### # ############### ###
#.#...............#.#...............#...#
#.#.#######.#####.#.#.#.###.#########.#.#
#.#.#.......#...#.#.#.#.#...#.........#.#
#.#.#.#######.###.#.#.#.#.###.#########.#
#.#.#.#.....#.....#...#.#.#...........#.#
#.#.#.#.#####.#######.#.###.###########.#
#...#.#.#.....#.....#.#.....#.....#.....#
#.###.#.#.#####.###.#######.#.###.#.###.#
#...#.#.#.#.....#...#.....#.#.#.#.#.#...#
 ##.#.#.#.###.###.###.###.###.#.#.#.####
#...#.#...#...#.#.....#.#.#...#.#.#.#...#

pls

badp

what's the starting point in that graph

fredley

S

Ronan

17:13

My input, answer 380

fredley

Oxygen pos: Coord { x: -20, y: 12 } in steps 1596
Min cost: Some((Coord { x: -20, y: 11 }, 274))

wat

dj pls

badp

1596 is WAY off the mark

fredley

Thats the steps to traverse the whole maze, ignore

Ronan

That's the right position though

badp

wow your maze starts with a huge corridor

also I guess you're torturing yourself with Haskell

Ronan

17:16

Hmm?

badp

the word "Some"

274 is also wrong btw

Ronan

That's Rust, but it means the same thing

badp

ah

Ronan

@fredley Is your algorithm moving diagonally?

badp

then he'd get a much lower answer

fredley

17:17

hang on, gonna render my path

Ronan

274 < 380

fredley

@Ronan No, couldn't be

@Ronan orly

Ronan

That was for @badp's sake

fredley

Oh it is, it's skipping around corners

badp

womp

fredley

17:18

#X#.XXXXXXXXXXX.#.X.#...#.....#.X.#.#...#
#X#####.#######X#X#.###.#.###.###X#.#.#.#
#X#.....#.XXX.#.X.#.#S#.#.#.#.#.X.#...#.#
#X#######X###X#####.#X#.#.#.#.#X#######.#
#X#.XXXXX...#.X.#...#X#.....#.#.XXXXXXX.#
#X#X###########X#.###X#######.#########X#
#.X.#...#.XXX.#X#...#.XXXXX.#.#.X.#.XXX.#
 ######.#X###X#X###.#######X#.#X#X#X####
#.XXX...#.X.#.X.#.....#.XXX.#.#X#X#.X.#.#

rekt

badp

also 274 is too high, rather than too low

fredley

cos my algo steps round the corner all at once

badp

so something else must be wrong

Ronan

@badp Nah my answer was 380

badp

I've got 270 for fredley's

Ronan

17:19

They're different mazes

So you can't copy someone else's answer

I thought he was running on mine?

badp

well the one he posteed

fredley

Ok I'm getting 380 on rons now

Lazers 2.0

0

Q: Is still possible to play Just Dance 2015 with Android app?

I've purchased a used copy of Just Dance 2015 for my niece to see if the game is suitable for her, in order to eventually get a newer version for Christmas. As far as I know, it's possible to play Just Dance using an Android app called Just Dance Controller but it appears that now it only supp...

just-dance-2015

0

Q: Elite Dangerous: Value of Planet Surface Mapping

I recently started surface mapping planets to earn some credits. I found out that you can scan (and sell) surface maps even of planets that are not 'unexplored' but actually explored already... So this seemed a good idea and it pays out pretty well. While selling mappings I have seen a vast rang...

elite-dangerous elite-dangerous-horizons

fredley

Yeah 15b is simple djikstra. Compute whole map and take highest cost.

badp

or you could just have done a flooding algorithm for both problems...

gfycat.com/BitesizedDeadAmurstarfish

you just have different stopping conditions

tbf I was lucky that 15b didn't ask me anything about the actual shortest path

BUT SCRYING THE FUTURE IS AN IMPORTANT SKILL FOR SOFTWARE DEVELOPMENT

anyway I'm publishing my garbo code at gist.github.com/badp/94066e553794458704ef1b2ba4d6e30a#file-0-md

wherein I aggressively refuse to read puzzle input from STDIN

fredley

17:27

Done, second part was trivial

I'll catch up with @Ron during the week

Damn weekend commitments

Ronan

@badp You can join my leaderboard if you want 194428-5ca78c8d

fredley

Do you enjoy food puns and misheard lyrics?
https://twitter.com/BBCOne/status/1203252814174183424

Lazers 2.0

0

Q: What determines if a Mech is available as salvage?

In MechWarrior 5, what determines if a Mech is available for salvage at the end of the mission? I've tried blowing the legs off, but that doesn't seem to be the deciding factor.

mechwarrior-5

GnomeSlice

17:59

Today in history

Lazers 2.0

0

Q: If I buy a European version of a Xbox one game will us dlc work with it?

The game I'm asking about/for is mortal Kombat 11

xbox-one

MBraedley

18:42

@Unionhawk is 12-2 supposed to return to the initial conditions or do I have to track all previous states?

Ronan

@MBraedley Try running the step backwards in your head

Sepia Lazers

0

Q: Can you ask how to pass a stage? What tag should I use?

If you want to ask about a certain objective, or what do you have to do to pass a stage in a video game, is this allowed on Arqade? If so, which tag do you use for the question when it isn't one of the best known games and there isn't a tag?

discussion

GnomeSlice

3

MBraedley

@Ronan For one step, the positions don't change, but I don't see how that helps me.

Ronan

I meant in general, it was a roundabout way of giving you a hint that every state has a single previous state, so there's no way to get to any of your middle states without passing through the first one

GnomeSlice

18:53

Bioshock 1&2 Remastered with (some) DLC for $14

Today only

MBraedley

I've gone through over half a billion iterations. That seems a little high to me.

Ronan

@MBraedley Nope that's correct

Check the final instruction

MBraedley

So I should be looking for the cycle rate of each of the planets, then get the LCM for all 4?

Ronan

I don't think that would work, because each planet affects the others, so they won't loop regularly

But you're onto something

MBraedley

Or, I guess they're moons. I should update my code.

Ronan

19:08

I called my empty space variable "air" in today's problem

MBraedley

19:36

My cycle rate idea isn't working out...

Ronan

19:47

@MBraedley You've got the right idea with looking for an LCM

MBraedley

Yeah, I caved and looked at the solution megathread. Now I know what to do, just need to figure out the implementation.

Ronan

Checking for loops on each axis right?

MBraedley

yeah

Unionhawk

20:02

Yeah I looked at the thread too, it didn't occur to me that the motion is periodic, and more specifically that each axis velocity is periodic and independent of the others

MBraedley

20:16

Why does the C++ standard LCM function only take 2 arguments? I mean, I know how to use GCD to get a 3 variable LCM, but the function should be variable.

Ronan

You can chain them though, but it would be nice

GnomeSlice

20:28

A night at a Brooklyn bodega

murgatroid99

@MBraedley Isn't lcm(a, b, c) the same as lcm(a, lcm(b, c))?

MBraedley

@murgatroid99 Maybe?

Yes. lcm(a, b) = a * b / gcd(a, b)

murgatroid99

I mean, just definition-wise, the least common multiple of any three numbers also has to be a multiple of the least common multiple of any pair of those numbers

Elva

@Warframe people (@GnomeSlice @GodEmperorDune ) I donated some 41 tellerium and 2 million credits to help do dry dock things

GodEmperorDune

20:56

thanks

GnomeSlice

@InvaderSkoodge do you find that using attack is a lot less common in flash Duel than dashing strike?

GodEmperorDune

alright, drydock building now, should be done in 12 hours

GnomeSlice

Maybe I don't have a good strategy but getting in close to do an attack seems like asking to get attacked first

Lazers 2.0

21:49

0

Q: Appear online while gaming on steam

Is there any way to appear just online and not in-game to your friends (not offline, I know how to do that) while you're in a game?

steam

Lazers 2.0

22:51

1

Q: How much free space do I need?

I'm interested in Ring Fit Adventure, but given the layout of my room, I have a relatively narrow strip of space between the Dresser/TV and the end of my bed. Is this enough room to successfully perform all or most of the exercises or will I find myself cramped and struggling to follow along?

ring-fit-adventure

MBraedley

23:07

Hmm, I don't think running through every possible game state is the appropriate approach for 13-2.

Nope, even release had a stack overflow.

badp

@MBraedley hint, my 13-2 solution had 12 digits

wait no

wrong day

MBraedley

@badp No, that was 12-2

badp

for 13-2, the simplest thing you can imagine works

people on reddit are just showing off

MBraedley

Yeah, find the ball, find the paddle, and move the paddle towards the ball.

Actually, I don't need to find the ball and paddle, I just need to store the values when they get output.

badp

that's an idea I didn't have

I guess at some point I'll have to come up with some sort of companion class to my computor class that can handle input and output listeners while also being able to encapsulate a state of its own so I can avoid doing so with global variables

I'll still be unable to drive inputs and outputs with recursive functions but

MBraedley

23:17

@badp I created an IO connector for the amplifier problem.

badp

ah, for that problem I just hardwired input and outputs together

gist.github.com/badp/…

MBraedley

Difficult for me to do with my implementation. Using callbacks, and need to store the value temporarily.

badp

I mean I'm using callbacks for these later problems

but they're just functions, and not bound methods of some other object

MBraedley

I can use just functions (or lambdas), but most of the time it makes sense to bind them to a method.

badp

yeah idk how to do that in C++

probably the sensible thing is to just have an listener object and having a reference to the whole thing

MBraedley

23:22

std::bind(function_ptr, obj, ...)

Although lambdas, once you learn them, are a bit easier most of the time.

badp

or I could just have less int (*input_handler)(const computor); void (*output_handler)(const computor, long long int); and more handler hand; value = hand.in(computor); hand.out(computor, output);

Dragonrage

@GodEmperorDune then you can pay 6 million credits to buy a railjack

Or just use someone else’s

badp

I was really happy to learn that smalltalk's LCM could hand me a 15 digit number without me having to loop in weird bigint implementations

Lazers 2.0

0

Q: Minecraft Creative isn't working right

So I was on Minecraft, and had my gamemode set to survival. I made sure i never EVER switched it to adventure mode, and I never pressed F1, but it won't let me break or place anything! It also wouldn't let me sleep in a BED! I don't know what to do. If anyone knows anything please, tell me. Thank...

minecraft minecraft-education-edition

GodEmperorDune

23:48

@Dragonrage credits are easy to grind

Much easier than tellurium

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