Mario Zechner

libGDX, Beginning Android Games, RoboVM, Spine. Member of the council of Warios.

Public Key

npub1h6qmf9h2qfvfgf663q6xl7lh6gt63zr0zzqcteqp8pmy0mls3x6qsw5nvc

NIP-05 Address

badlogic_at_mastodon.gamedev.place@mostr.pub

Profile Code

nprofile1qqstaqd5jm4qyky5yadgsdr0l0may9ag3ph3pqv9usqnsaj8alcgndqpz4mhxue69uhhyetvv9ujumt0wd68ytnsw43qz9rhwden5te0wfjkccte9ejxzmt4wvhxjmchzzeql

Publishing to

relay.mostr.pub

relay.damus.io

Author Public Key

npub1h6qmf9h2qfvfgf663q6xl7lh6gt63zr0zzqcteqp8pmy0mls3x6qsw5nvc

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Last Notes

2024-09-15 21:33:02

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Also works on Windows, Linux, and macOS. Could make it work on Web via Emscripten and in DOS as well, alas...
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/113/143/706/777/508/728/original/e6c97634d6713c49.png

2024-09-15 21:31:32

Well, well, well, guess I got myself a little gaming hardware thing going.
Coming soon to a Git repository near you.
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/113/143/681/019/061/434/original/128bd39aef6cdf55.png
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/113/143/702/307/229/549/original/f1ad34086ed477a4.png

2024-09-13 20:45:59

60fps bear
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/113/132/198/483/796/780/original/8f93924f9c006a20.mp4

2024-09-07 22:00:13

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@npub10lf…ku5t Beautiful.
Is that matt usable for soldering too? I'd love one like that but all I can find is garbage.

2024-09-04 10:25:41

After a good night's sleep, a tried to solder a different IC.
WTF, I can solder now. Took 15 minutes to solder them all.
So satisfying!
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/113/078/798/183/248/270/original/f0ed6fd4c9d75c14.jpg
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/113/078/798/340/186/237/original/74d4bdaca08629fb.jpg
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/113/078/798/521/848/258/original/b96b71b8dc23c476.jpg

2024-08-29 13:55:12

So, I finally got it to work via wires instead of plugging it in as a shield. It is indeed an 8-bit parallel interface and not an SPI interface like the stupid "datasheet" (it's actually just a guide with no data) by AZDelivery says.
Terrible display.
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/113/045/647/681/020/735/original/8862021febd8b9ed.jpg

2024-08-28 14:59:38

The AdaFruit GFX library is very easy to get started with when interfacing with an IL9341 display, with a simple API. Cool!
Not so cool: the implementation is immensely suboptimal. All drawing functions assume pixel data is stored in flash memory, so SPI fetches everywhere. Uff.

2024-08-19 19:53:39

I just watched a guy debugging a bad C64 using an $18 cheapo oscilloscope and it's super mesmerizing. I know enough stuff that I could follow!
https://youtu.be/iG0-0R9qYWU?si=rBrgs_Rqmue8Ve_4

2024-08-08 00:06:58

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@npub1mah…qa8u cheers! I figured out it's a fast blow one from the label on it.

2024-08-07 08:59:58

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@npub1a33…axpd The cheapest magnifying glass light I could find.
https://www.amazon.de/gp/aw/d/B0BLGD8D3G?psc=1&ref=ppx_pop_mob_b_asin_title

2024-08-06 19:30:46

Clean desk policy engaged (yes, it needs a whipe, but you get the idea)
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/112/916/735/291/133/241/original/de14914b8a6d212e.jpg

2024-08-05 19:37:40

Finally got time to play Kitsune Tails by @npub1znz…8l64
Wooh!
https://store.steampowered.com/app/1325260/Kitsune_Tails/

2024-08-04 18:37:40

Little one rushed into the office today, spread all components over the desk, sorted them, scribbled, and finished by saying "sorry, gotta work".
Guess I'll trust his circuit design. He's clearly the expert in the house.
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/112/905/201/830/490/447/original/711afd883d71b3c4.jpg

2024-07-26 19:50:00

Fritzing is extremely slow on an M1 Max MBP. What gives? Any good alternatives? (It's overall a bit janky)

2024-07-25 18:30:08

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Baby's first soldering iron! ＼⁠(⁠°⁠o⁠°⁠)⁠／
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/112/848/547/740/239/590/original/3e7d63b7e8625dd5.jpg
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/112/848/547/920/790/397/original/c1912805cb0e0e9c.jpg

2024-07-25 18:27:05

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Oh, another Uno. Now I have 3 of them. Can't have enough Unos.
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/112/848/537/095/369/491/original/5322bf54d3d9187c.jpg

2024-07-24 09:24:53

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@npub1znz…8l64 my self designed "Simon Says" game, aka night 2 of learning electronics (basically faking it with software...)
https://mastodon.gamedev.place/@badlogic/112838502169348435

2024-07-24 08:52:26

I would like to inform you that I have simplified the circuit. Turns out the pins have internal pull up resistors. So I killed the pull down resistors on the breadboard. I feel like Woz.
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/112/840/611/186/819/830/original/1814c477e2d76150.jpg

2024-07-23 18:58:57

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@npub1znz…8l64 ENIIIII WHAT IS YOU DOIN?!

2024-07-22 22:32:05

literally sat in front of this for 20 minutes trying to figure out which ones are the 220 ohm resistors. This is going great!
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/112/832/512/789/342/737/original/17475f779062cabf.mp4

2024-07-22 11:26:34

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@npub1dng…9l6c it's an UNO, so 8-bit AVR chip.

2024-07-22 11:10:36

To new beginnings and skills.
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/112/829/833/886/773/975/original/5478d11ed6ab95a3.jpg

2024-07-20 00:06:58

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Fun fact: On ARM64, trivial functions may not have enough space for a long jump to a newly allocated memory area with new machine code.
Praise be x86_64 for its generous prologues and epilogues! 🫠
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/112/815/898/729/263/190/original/2eb0ea570c6d05c3.png
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/112/815/898/733/308/683/original/738ae9c0084ad2b6.png

2024-07-20 00:06:27

Played around with mach APIs a little to see how hard it is to inject code into a running process. Pretty similar to what you need to do on Windows.
Maybe this PoS code is helpful to others.
https://github.com/badlogic/macinject
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/112/815/886/760/725/644/original/e6bbd39b00742379.mp4

2024-06-08 21:17:52

My hometown today. (parents still live there, I don't, they are OK)
The governing party wants to make Austria the world leader in combustion engines.
No punchline.
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/112/583/078/649/709/714/original/d5bde7ca292d5c1e.png
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/112/583/078/242/639/155/original/5ead95334ac91437.jpg
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/112/583/078/215/744/675/original/4118a93043a0b3bc.jpg

2024-05-25 19:26:18

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And if you think perplexity.ai is any better, think again. They are all doing the same shit:
- Search top web results for query
- Stuff results plus query into a prompt
- Ask LLM to answer query based only on contents of search results.
Tada (Note: the answer looks superficially better until you get to the coconut section :)
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/112/503/367/139/923/617/original/ee35806d5b746822.jpg

2024-02-19 07:00:10

Been working on a new data project. Ingesting, cleaning and relating parliament stenographic protocols for every session since 2022.
Based on that, I can do some funny shit. E
g. measure which people have been absent how often. And correlate it to their party.
What a surprise, that the extreme right wing "for the small man" party FPÖ is the winner in the category "most absences". By a lot.
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/111/956/853/105/942/838/original/ec64e434528455e2.jpg
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/111/956/853/303/537/238/original/a13daf96d10d7c9d.jpg

2024-01-03 08:51:33

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@npub129t…mdn4 as in: auto should just make it so I do not have to repeat the type that's implicit in the right hand side of an assignment. As it is, I still have to care about the RHS type to get things right.

2024-01-03 08:50:19

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@npub129t…mdn4 oh, I'm not saying auto should by default "infer" a reference. For me the most intuitive way auto should work: type of LHS == type of RHS
But I'm a simple boi and likely overlook some terrible C++ magic that needs to be adhered to.

2024-01-03 08:37:47

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@npub129t…mdn4 I'd really love to understand the rational behind auto and &. It's such a stupid foot gun. Like, when would you ever want to turn a & into a local copy?

2024-01-03 08:35:11

this->skeleton is a Skeleton&. auto will infer Skeleton. A copy is created. The copy is a shallow copy, which gets destructed at the end of the block. Which smokes the internals of the original Skeleton. Which makes things go boom.
auto is now banned in my C++ code bases.
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/111/691/095/235/354/703/original/13afd223c7dce25c.png

2023-12-29 03:06:47

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@npub1fge…66xk I have. Seems to be packaging of Prosody + Conversations. Not sure what it adds on top of these.

2023-12-28 21:18:37

Anyone here have experience with Matrix? Want to move the family off of WhatsApp and host my own Synapse instance. Pros? Cons? Caveats?

2023-12-20 05:37:11

How Diabloe II's perspective mode worked. Beautiful.
https://simonschreibt.de/gat/dont-starve-diablo-parallax-7/

2023-12-19 12:02:57

Feels like I'm installing a root kit. I probably am, given who Unity merged with. God fucking damn it.
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/111/606/980/542/902/474/original/6ae5124b2dbb241a.png

2023-12-19 05:42:26

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@npub1fge…66xk what does broken mean exactly? Guess: you are using Firefox with enhanced protection on.

2023-12-18 17:55:47

Remember my little Reddit/Hackernews/RSS/Mastodon reader called Ledit?
I rewrote it. Only does Reddit and Hackernews now, but so much better.
Try it here:
ledit.marioslab.io

2023-12-05 16:13:54

Help needed. Can you all open this link, play around a little, then reply with your device/operating system/browser info an how kany "fps" you got?
https://marioslab.io/uploads/webgl-demos/example/physics2.html
You'd really help me out!
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/111/528/695/134/169/302/original/7e86a6f2c941a616.png

2023-12-05 13:24:08

Work on stuff entirely unrealted to UE.
Suddenly.
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/111/528/026/523/196/690/original/ef4ac6e292df9f90.png

2023-11-17 11:50:52

Using GPT-4 again to bounce some algorithmic ideas off of it. For shits and giggles I asked it to draw me a visual representation and check if it can find any holes it suggested in the algorithm.
It's hilarious (no, I don't expect it to design the algo or figure out errors in it)
Looks great tho.
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/111/425/738/809/717/796/original/cd81630385a669a2.png
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/111/425/739/054/485/428/original/1798efa0dcee5a5f.png

2023-11-15 09:12:29

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@npub1h7r…pjda I have, and that's the only paragraph saying anything close to that. It also ends with the sentence in the first screenshot.
The rest of the article is full with such "so that happened" pearls.
When 99% of the article perpetuates this, a single paragraph with questionable ending doesn't save it from being bollocks imo.
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/111/413/788/870/659/245/original/1b23d8721b3667e3.png
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/111/413/789/658/688/220/original/d98ac8d3f2a34baa.png
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/111/413/789/810/329/991/original/16af590aa83ea328.png

2023-11-15 06:17:29

I've been reading this New Yorker peace last night, and it's kind of upsetting. It's another retelling of the popular tale, that LLMs like GPT-4 will replace people like me, meat bag developers.
https://www.newyorker.com/magazine/2023/11/20/a-coder-considers-the-waning-days-of-the-craft
Let me illustrate why this is bollocks.
I'm currently working on a client for BlueSky. As part of that, I'm trying to work around API limitations to get scroll position memoization going. I.e. close app, open app, continue were you left off instead of a reload.
🧵

2023-11-07 00:06:34

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@npub1fge…66xk @npub1ske…k9u5 he's explicitely calling out HTML as the fast moving sucess story, while saying that HTTP is stuck. And HTML/CSS /JS is governed by a small cabal of (almost) trillion dollar corps.
Which is basically Moxie's argument.
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/111/366/346/234/514/235/original/e81e83bc423b9951.jpg

2023-11-06 18:45:09

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@npub1fge…66xk @npub1ske…k9u5 thanks for those links.
Gultsch citing HTML/CSS/JS as a "federated success story" is extremely weird though. That's not a protocol and controlled by 3 big companies, as he himself says in his article.

2023-11-04 07:05:35

didn't have "please accept broken by design of this implementation because of the ideology behind federation" on my bingo card.

2023-11-03 23:52:49

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@npub1fge…66xk for users, it doesn't matter if it's a protocol or implementation issue. It's simply broken. In which case it doesn't matter if its federated or not. Broken is broken.

2023-11-03 23:09:55

@npub1vfh…e0hv super sorry to bother you, and please ignore if you don't have cycles for this.
It appears that the mastodon.gamedev.place instance has a content retention policy set. See:
https://github.com/mastodon/mastodon/pull/19232
This means that conversations on mastodon.gamedev.place that have replies from accounts from other instance will eventually get broken.
Example, convo on mastodon.gamedev.place, now broken:
https://ledit.lol/#m/comments/mastodon.gamedev.place/111246663566919985
Full thread still retained on mastodon.social:
https://ledit.lol/#m/comments/mastodon.social/111248889698264819
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/111/349/136/970/715/657/original/88ccc7a1b3942ee2.png
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/111/349/136/985/243/824/original/a767fd1b0a88ebff.png

2023-11-03 22:55:42

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I truely want Mastodon to be the winner in all of this. But it seems the protocol is so broken beyond repair, that the chances of that are basically nil just due to technicalities.
What a shame.

2023-11-03 22:53:48

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BlueSky: broken
Mastodon: broken
I fucking hate this stupid timeline. The only platform that still (somewhat) works on a technical level is a nazi shit show now. Good job, Space Karen.

2023-11-03 22:51:33

Well, Mastodon is even more fucked than I thought when I built my own client.
Turns out an instance may eventually evict posts from accounts from other instances.
Say you are on instance A, and a friend is on instance B. You two have a convo. After some time, all of B's replies are gone from your instance. If you view your thread, you are missing all their replies. If you are lucky, instance B still has all replies. Or not. Poof.
What a terrible, terrible platform.
https://mastodon.gamedev.place/@rovarma/111348337555786854

2023-11-02 02:31:48

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Jesus, they actually convert from PNG to JPEG in the client!
Used the official BlueSky web app to post a 3.6mb PNG. The client-side actually downscaled and converted it to JPEG before uploading it to the BlueSky servers.
Why?
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/111/338/606/170/064/720/original/9701d14be229a34f.png
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/111/338/606/148/511/316/original/8e599e6599c18f46.png

2023-11-02 02:08:18

I'm currently working on a post editor for my little BlueSky tools. Allows image uploads as well now.
First surprise: images can't be bigger than 960kb. They currently only support PNG and JPEG.
PNGs always get converted to JPEG and pushed to their CDN. All BlueSky clients fetch from the CDN.
So you always get JPEGs on BlueSky, even if you uploaded and store PNGs in the repo.
Image in Repo (PNG)
https://bsky.social/xrpc/com.atproto.sync.getBlob?did=did:plc:tor3vfreawh4m76ytz4krgtr&cid=bafkreieliryvglsih5wjibjzjw2qjcavoaa6sqve2rydogpnroypv6q37q
Image on CDN (JPEG)
https://cdn.bsky.app/img/feed_fullsize/plain/did:plc:tor3vfreawh4m76ytz4krgtr/bafkreieliryvglsih5wjibjzjw2qjcavoaa6sqve2rydogpnroypv6q37q@jpeg
I can't even.
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/111/338/513/255/769/839/original/7bdc0382a9fcf085.png

2023-10-22 11:35:03

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@npub1hzg…zc23 ja
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/111/278/457/008/030/437/original/daca3df7f457dbf6.jpeg

2023-10-16 21:23:45

The past two nights I wrote a "thread reader app" for BlueSky.
https://skyview.social
Oh boy. The protocol is absolutely insane. RPC galore, responses are only partially typed. The docs are pretty much useless.
But the "funniest" part is this: there's no privacy. And I don't mean missing DMs.
All your posts are available through API endpoints. Without any authentication. By design.
The "invite-only" thing may have you think otherwise.
Here are my last 100 posts.
https://bsky.social/xrpc/com.atproto.repo.listRecords?repo=badlogic.bsky.social&collection=app.bsky.feed.post
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/111/246/791/778/477/909/original/9070f60b3991b347.png

2023-09-18 00:55:37

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caveat emptor: this thing is 3 hours old, there are likely bugs. Please report them to me with a link to the thread that you tried to unroll.

2023-09-18 00:51:01

Introducing Masto Reader. Like Thread Reader App, but for Mastodon.
How does it work? Mention @npub1nfu…5dtf(@mastodon.social) anywhere in a thread and say "unroll" and the little bot will do the rest.
Here's an example (that takes a bit to load for reasons)
https://mastoreader.io/?url=https%3A%2F%2Fmastodon.gamedev.place%2F%40badlogic%2F111071396799790275
You can share those links with others.
Links to the crappy source code can be found in the bot's profile.
Everything runs in your browser. The server doesn't log anything either.
Enjoy and spread the word.
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/111/083/387/479/447/672/original/327140c70174529e.png
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/111/083/405/597/603/069/original/e4d9e4ab81a3d7dc.png

2023-09-15 21:56:54

Today was ... interesting. If you followed me for the past months over on the shitbird site, you might have seen a bunch of angry German words, lots of graphs, and the occassional news paper, radio, or TV snippet with yours truely. Let me explain.
In Austria, inflation is way above the EU average. There's no end in sight. This is especially true for basic needs like energy and food.
Our government stated in May that they'd build a food price database together with the big grocery chains. But..

2023-08-12 17:08:52

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@npub1s7y…u8ak Lemmy is on my todo. Should be easy. Don't know the other ones.

2023-08-12 13:18:10

And now my little Reddit client, which evolved to a Reddit + HN client, has evolved to a Reddit + HN + RSS feeds client. This isn't even its final form...
https://marioslab.io/projects/ledit/#rss/https://derstandard.at/rss
https://cdn.masto.host/mastodongamedevplace/media_attachments/files/110/876/837/806/991/871/original/9c07e5897824f4b3.png