artificial gestation
The word “matrix” literally means “womb” in its older sense.
I write code and play games and stuff. My old username from reddit and HN was already taken and I couldn’t think of anything else I wanted to be called so I just picked some random characters like this:
>>> import random
>>> ''.join([random.choice("abcdefghijklmnopqrstuvwxyz0123456789") for x in range(5)])
'e0qdk'
My avatar is a quick doodle made in KolourPaint. I might replace it later. Maybe.
日本語が少し分かるけど、下手です。
Alt: e0qdk@reddthat.com
artificial gestation
The word “matrix” literally means “womb” in its older sense.
It’s not a GUI library, but Jupyter was pretty much made for the kind of mathematical/scientific exploratory programming you’re interested in doing. It’s not the right tool for making finished products, but is intended for creating lab notebooks that contain executable code snippets, formatted text, and visual output together. Given your background experience and the libraries you like, it seems like it’d be right up your alley.
It might be easier to just fire up Wireshark and look for relevant traffic when you trigger the action.
I don’t know if there are any existing implementations that work well enough yet for it to actually be relaxing, but it might be possible to set up a hands-free IF experience by hooking up speech-to-text and text-to-speech tools to the game.
Can Z3 account for lost bits? Did it come up with just one solution?
It gave me just one solution the way I asked for it. With additional constraints added to exclude the original solution, it also gives me a second solution – but the solution it produces is peculiar to my implementation and does not match your implementation. If you implemented exactly how the bits are supposed to end up in the result, you could probably find any other solutions that exist correctly, but I just did it in a quick and dirty way.
This is (with a little clean up) what my code looked like:
#!/usr/bin/env python3
import z3
rand1 = 0.38203435111790895
rand2 = 0.5012949781958014
rand3 = 0.5278898433316499
rand4 = 0.5114834443666041
def xoshiro128ss(a,b,c,d):
t = 0xFFFFFFFF & (b << 9)
r = 0xFFFFFFFF & (b * 5)
r = 0xFFFFFFFF & ((r << 7 | r >> 25) * 9)
c = 0xFFFFFFFF & (c ^ a)
d = 0xFFFFFFFF & (d ^ b)
b = 0xFFFFFFFF & (b ^ c)
a = 0xFFFFFFFF & (a ^ d)
c = 0xFFFFFFFF & (c ^ t)
d = 0xFFFFFFFF & (d << 11 | d >> 21)
return r, (a, b, c, d)
a,b,c,d = z3.BitVecs("a b c d", 64)
nodiv_rand1, state = xoshiro128ss(a,b,c,d)
nodiv_rand2, state = xoshiro128ss(*state)
nodiv_rand3, state = xoshiro128ss(*state)
nodiv_rand4, state = xoshiro128ss(*state)
z3.solve(a >= 0, b >= 0, c >= 0, d >= 0,
nodiv_rand1 == int(rand1*4294967296),
nodiv_rand2 == int(rand2*4294967296),
nodiv_rand3 == int(rand3*4294967296),
nodiv_rand4 == int(rand4*4294967296)
)
I never heard about Z3
If you’re not familiar with SMT solvers, they are a useful tool to have in your toolbox. Here are some links that may be of interest:
Edit: Trying to fix formatting differences between kbin and lemmy
Edit 2: Spoiler tags and code blocks don’t seem to play well together. I’ve got it mostly working on Lemmy (where I’m guessing most people will see the comment), but I don’t think I can fix it on kbin.
If I understand the problem correctly, this is the solution:
a = 2299200278
b = 2929959606
c = 2585800174
d = 3584110397
I solved it with Z3. Took less than a second of computer time, and about an hour of my time – mostly spent trying to remember how the heck to use Z3 and then a little time debugging my initial program.
What I’d do is set up a simple website that uses a little JavaScript to rewrite the date and time into the page and periodically refresh an image under/next to it. Size the image to fit the remaining free space of however you set up the iPad, and then you can stick anything you want there (pictures/reminder text/whatever) with your favorite image editor. Upload a new image to the server when you want to change the note. The idea with an image is that it’s just really easy to do and keeps the amount of effort to redo layout to a minimum – just drag stuff around in your image editor and you’ll know it’ll all fit as expected as long as you don’t change the resolution (instead of needing to muck around with CSS and maybe breaking something if you can’t see the device to check that it displays correctly).
There’s a couple issues to watch out for – e.g. what happens if the internet connection/server goes down, screen burn-in, keeping the browser from being closed/switched to another page, keeping it powered, etc. that might or might not matter depending on your particular circumstances. If you need to fix all that for your circumstances, it might be more trouble than just buying something purpose built… but getting a first pass DIY version working is trivial if you’re comfortable hosting a website.
Edit: If some sample code that you can use as a starting point would be helpful, let me know.
Yeah; I also tried subbing in case that kicks off federation and searched a few titles to see if they ended up in random incorrectly as well (stuff like that happens sometimes with kbin). The magazine has seen a few microblogs mentioning the channel, and it clearly picked up the avatar/icon, description, etc. somehow, but doesn’t seem to be getting any videos as threads/posts and I couldn’t find any floating around disconnected either. I think kbin most likely doesn’t understand what PeerTube is publishing through AP, but there could always be federation weirdness or something.
Doesn’t seem to work right on kbin, unfortunately, although it does show up as a magazine: https://kbin.social/m/thelinuxexperiment_channel@tilvids.com
[coreutils-announce] coreutils-8.31 released [stable]
stat now prints file creation time when supported by the file system,
on GNU Linux systems with glibc >= 2.28 and kernel >= 4.11.
https://lists.gnu.org/archive/html/coreutils-announce/2019-03/msg00000.html
(found thanks to this blog post titled “File Creation Time in Linux”)
Any ways to get around the download failing
I did this incredibly stupid procedure with Firefox yesterday as a workaround for a failing Google Takeout download:
[1] You can actually replace the new .part file with anything that has the same size in bytes as the old file – I replaced it with a file full of zeros and manually merged the end onto the original .part file with a tiny custom python script since I had already moved the incomplete file to other media before realizing I could try this. (In my case, the incomplete file would still have been useful even with the last ~1MB cut off.)
There are probably better options in most cases – like Thunderbird for mailbox as other people suggested, or rclone for getting stuff from Drive – but if you need to get Takeout to work and the download keeps failing this may be another option to try.
Haven’t used that particular library, but have written libraries that do similar sorts of things and have played with a few other similar libraries in C++ and Haskell. I’ve taken a quick glance at the documentation here, but since I don’t know this library specifically apologizes in advance if I make a mistake.
For OneOrMore(Word(alphanums)) + OneOrMore(Char(printables))
it looks it matches as many alphanum Words as it can (whitespace sequences being an acceptable separator between tokens by default) and when it hits (
it cannot continue with that so tries to match the next expression in the sequence. (i.e. OneOrMore(Char(printables))
)
The documentation says:
Char - a convenience form of Word that will match just a single character from a string of matching characters
Presumably, that means it will not group the characters together, which is why you get individual character matches after that point for all the remaining non-whitespace characters. (Your result also seems to imply there was a semicolon at the end of your input?)
For OneOrMore(Word(alphanums)) + OneOrMore(Char(string.punctuation))
it looks like it cannot match further than (
since 1
is not a punctuation character; so, you got the tokens for the parts of the string that matched. (If you chained the parser expression with something like + Word(alphanum)
I’d expect you’d get another token [i.e. "1"
] added onto the end of your result.) You may eventually want StringEnd/LineEnd or something like that – I’d expect they’d fail the parser expression if there’s unconsumed input (for error detection), but again, haven’t used this specific library, so it may work different than I expect.
There appears to be a Combine
class you can use to join string results together; that might be useful for future reference.
i was trying to parse a string with pyparsing so all the words were separated from the punctuation signs
Have not tested it (since I don’t have a copy of the library installed anywhere and can’t set up an environment for it easily right now) but perhaps something like OneOrMore(Word(alphanums)|Char(string.punctuation))
would be more like what you are looking for?
I don’t have a complete solution, but I do have some ideas:
Pokemon (1st gen and 2nd gen – plus some of the spin-off stuff from that era to a lesser extent) captivated me in a way no other games have before or since. Honestly, I hope nothing ever grabs me that hard again; it’s kind of scary how obsessed I was in retrospect.
A number of N64 games also made a big impact on me. Majora’s Mask was probably my second favorite game (after Pokemon) for many years. (OoT made an impression too, but I played MM first.) I loved the music in Diddy Kong Racing. I got 120 stars in Mario 64, and when I tried it again as an adult, I really appreciated how short and to the point levels could be (not that I played that way as a kid) – also the camera in that game sucked. Castlevania: Legacy of Darkness kind of disturbed me a bit as a kid, but it’s probably the first game I encountered a sort of “New Game Plus” in, which was neat. (People have since told me that’s the “black sheep” of the series and that it’s really weird that that’s the only one I’ve played significantly.)
Duke Nukem 3D was the first game I modded, I think (very simple graphical stuff). Definitely wasn’t age appropriate but I played the heck of it anyway. Didn’t really get much into other shooters other than playing through the main game of Perfect Dark on N64 and playing split-screen Golden Eye with friends.
I also played a lot of Sim\ games – particularly SimCity 2000, SimEarth, and SimTower. Also had a bunch of others like SimFarm and even some of the more obscure ones like SimSafari. Streets of SimCity and SimCopter being able to load SC2K maps was really neat though. Played a fair amount of other city builders and simulation games like Caesar III and Roller Coaster Tycoon too. My parents probably hoped I’d become some sort of business manager. :p
I had a lot of creative tools back then as well which I treated as not-that-different from video games. Various Kid Pix programs (one of which had a bunch of odd video clips integrated – including a short documentary about jackalopes of all things), Kid’s Studio, Digital Chisel, some version of HyperCard, etc. Game Maker – which I found around the year 2000 back when it was still on www.cs.uu.nl – ultimately led me to being a professional programmer.
“To hell with wearing your heart on your sleeve – bare it all!”
“Opinions are like assholes – and here’s mine!”
“…and now, for a real hot take!”
Wow, that’s a heck of a lot cheaper than I expected. I mean, it’s still more than I’m willing to pay for it on my own, but it’s not the “haha no way could I ever buy one” level of impossible I was expecting. My boss probably wouldn’t bat an eye if I asked for one to stick in a workstation… Hmm.
OK, that’s fun and all, but how much does that crazy SSD cost? :p
If you want minimal effort to get a good Linux setup for Steam, just buy a SteamDeck. Get the dock if you want to use it like a regular computer or console with a wireless gamepad. I did that – hooked it up to my monitor, headphones, plugged in a mouse, keyboard, and my old XBox360 USB wireless dongle and it all just worked. I’ve got a few ideas for fun projects I want to try with it as a handheld and have written some software on it using desktop mode (little Python utility scripts for shuffling data around) but mostly I just use it like a gaming console; it works well for that.
GLFW_USE_WAYLAND
and GLFW_USE_OSMESA
turned off to get it to try to build against X11.GLFW_BUILD_DOCS
, GLFW_BUILD_EXAMPLES
, GLFW_BUILD_TESTS
CMAKE_INSTALL_PREFIX
if you don’t want to use the /usr/local default install path.make
and make install
pkg-config --cflags --libs --static glfw3
to get this info as part of your own build process (in a Makefile, for example) or else require glfw3 as part of a cmake-based build, but you can read what’s generated in there if that program is not available to you for some reason. In case it’s helpful for comparison, what I get with a custom build of the static library version of glfw3 installed into /usr/local on a slightly old version of Ubuntu is output like -I/usr/local/include -L/usr/local/lib -lglfw -lrt -lm -ldl -lX11 -lpthread -lxcb -lXau -lXdmcp
but you may need something different for your particular configuration.Basically, something like this, probably, to do the compilation and get the flags to pass to g++:
wget 'https://github.com/glfw/glfw/releases/download/3.3.8/glfw-3.3.8.zip'
unzip glfw-3.3.8.zip
mkdir build
cd build
cmake -D GLFW_BUILD_DOCS=OFF -D GLFW_BUILD_EXAMPLES=OFF -D GLFW_BUILD_TESTS=OFF -D GLFW_USE_OSMESA=OFF -D GLFW_USE_WAYLAND=OFF -D GLFW_VULKAN_STATIC=OFF ../glfw-3.3.8
make
make install
pkg-config --cflags --libs --static glfw3
If you want to just compile a single cpp file after building and install, you can do something like
g++ main.cpp `pkg-config --cflags --libs --static glfw3` -lGL
Have you tried Resonance? It’s a mystery adventure game set in modern times where you play as four different characters whose stories interconnect. It’s been a while since I played it (a decade or so?) but I remember that it had an interesting game mechanic that let you use memories like items in various interactions, as well as a number of puzzles that I rather liked the design of.