DDraceNetwork - developer

DDraceNetwork

Development / developer

Development discussion. Logged to https://ddnet.tw/irclogs/ Connected with DDNet's IRC channel, Matrix room and GitHub repositories — IRC: #ddnet on Quakenet | Matrix: #ddnet-developer:matrix.org GitHub: https://github.com/ddnet

Between 2023-04-20 00:00:00Z and 2023-04-21 00:00:00Z

What does str_utf8_stats count? https://github.com/ddnet/ddnet/blob/391c127cb3adacfdc0084b060009f7ec5de524e9/src/test/str.cpp#L591-L625

ddnet/str.cpp at 391c127cb3adacfdc0084b060009f7ec5de524e9 · ddnet/d...

DDraceNetwork, a free cooperative platformer game. Contribute to ddnet/ddnet development by creating an account on GitHub.

09:23

i can not reall use it to count the letters can i?

09:25

I need a thing that counts this любовь as 6. Does ddnet code base offer something for that? Basically counting how many times my cursor would jump. To calculate the width in a fixed width font scenario

09:26

it seems to do so the first time in the test but the 2nd time it counts 3? does it keep state? when i str cmp those two it seems to be the same

@Learath2

Image attachment

09:27

chiller i think u want to count unicode graphemes

09:27

in rust thats not hard

ttps://zillyhuhn.com/cs/.1681982876.png

09:28

bra did i fail the link? xd

09:28

Embedded image

09:28

how are these two strings different? why does the count vary? does it keep state?

Ryozuki

@Learath2

Can't super react on phone, so take this hypervomit

hypervomit

ChillerDragon

how are these two strings different? why does the count vary? does it keep state?

Did you even bother to read the documentation we have on str_utf8_stats or even just the parameter names?

no i no read doc

09:38

everytime i wonder if there is doc there is none :D

Almost every system.h function is documented atleast to some degree if they are not completely obvious

ah the max size caps it

09:39

ok then it seems to be the function i need weirdly it doesnt work as epxected for me ill furtehr investigate

Just set max_size to the size of the buffer, max_count to INT_MAX

is there a well known algorithm to reduce padding or just put the biggest elements first?

11:50

i wonder what rust does

11:50

(rust is free to reorder fields for maximum efficiency)

since all alignment is power-of-two (in rust, c++) and object sizes are always a multiple of alignment (rust, c++), putting the elements with largest alignment first minimizes padding

11:54

rust does this

11:54

afaik

Ryozuki

is there a well known algorithm to reduce padding or just put the biggest elements first?

Is your goal using less memory?

i mean less padding is always better right

If u access the variable from 2 threads maybe not

12:05

Or 2 fields

12:05

From 2 threads

no threads here

Ryozuki

i mean less padding is always better right

Hm, maybe worse in performance due to your access pattern, e.g. if you always check a field right after another, they might end up in the same cache line

also SoA is better than AoS

12:10

but I don't know any language that supports it natively

12:10

(https://en.wikipedia.org/wiki/AoS_and_SoA)

In computing, an array of structures (AoS), structure of arrays (SoA) or array of structures of arrays (AoSoA) are contrasting ways to arrange a sequence of records in memory, with regard to interleaving, and are of interest in SIMD and SIMT programming.

heinrich5991

but I don't know any language that supports it natively

There is that one research language people point out. I don’t remember the name

yeah i forgor

But iirc it can do both with just a flag on the struct

SoA has no padding

12:11

I wanna know the name

Uff, I think I remember it being mentioned in the data oriented design cppcon talk by that guy who hates cpp

12:12

Though not sure, ymmv

12:12

I take no responsibility if you watch it and it’s not there

More input about this topic

12:13

Its getting interesting

https://www.youtube.com/watch?v=IK76q13Aqt0 bruh this guy alone did this

Unrecord - Official Early Gameplay Trailer

12:13

amazing dev

Runs on your rtx4090 super Cluster xdD But nice if that's actual gameplay footage

Nice, someone knows some secrets to cinematic game dev

12:17

The game almost looked like swat, but better graphics and insane camera movement

Cellegen

Nice, someone knows some secrets to cinematic game dev

That's gameplay

ReiTW

https://www.youtube.com/watch?v=IK76q13Aqt0 bruh this guy alone did this

So is this game completely recorded as video?

Well it's VR so

Hard to see on mobile

There's a beta coming soon

ReiTW

That's gameplay

Yeah, not like any interactive gameplays, unreal 5 rocks

But it's not rendered is it?

Learath2

Uff, I think I remember it being mentioned in the data oriented design cppcon talk by that guy who hates cpp

based

Jupstar ✪

But it's not rendered is it?

it is

12:27

must be

12:27

but the dev most likely used IRL textures

12:27

the lightning looked unreal

12:28

camera movement looks real because that's a VR game it moves together with your own head (edited)

default

it is

Well from what I see on mobile this is way too realistic

12:29

I guess it's a video

this isnt a mobile game is it

Wtf r u talkn about xd

why do you think that shit runs on mobile

I watched the video

12:29

On mobile

12:30

And see a game with prerecorded video

lmao

the game isn't built with videos tho

12:30

that's how I understood you

We'll see

12:31

Or do u have any proof

hard to believe its 1 guy

12:32

making animations is extremly time consuming

12:32

and the graphics look way too real

12:32

also the video feels laggy somehow but maybe jut me xd

12:32

but well the game is jut 1 guy with a gun

Yeah it's him and some friends recording a video and then put a game on top of it

xd

12:33

@Jupstar ✪ i think so to, but i hope to be wrong

12:34

there is a limit to what 1 guy can do

tbh the fog effect on the gun when he shoots gives it away, that it was made in an engine

also this project isnt rly old, cuz i saw it on twitter some time ago

Cellegen

tbh the fog effect on the gun when he shoots gives it away, that it was made in an engine

U can create filters

12:34

Or put some effects on top of the videi

but that would be cheesy towards IGN

12:34

must be gameplay element

Cellegen

tbh the fog effect on the gun when he shoots gives it away, that it was made in an engine

try to render a shadow that behaves like a normal one on a 2d image

Image attachment

12:35

of course it's not a video

yeah, but if the fog wouldn't be there, I would've easily said it's real xd

When will the beta come?

there are no dates as far as I looked

12:36

I could see this being used by military

12:36

their simulators are dogshit

I'll later look on desktop

unreal simulations, I cannot wait to have Among us simulation on UE5

12:37

lol

this is not a simulation of physics tho

12:37

just a environment one

12:37

what half life did simulating physics first was a real break through

and with the half life vr game too

Ryozuki

what half life did simulating physics first was a real break through

you think?

12:39

they used an engine they had to buy a license for Edit: Havoc (edited)

12:40

Alyx and CS2 run their own inhouse one (edited)

12:40

I think

12:41

gets explained in this video probs: https://www.youtube.com/watch?v=VqekPzzCZGk

CS2 - The Superior People Stacking Simulator

str_utf8_stats("「中国社区服」", 10, 10, &Size, &Count);
EXPECT_EQ(Size, 9);
EXPECT_EQ(Count, 3);

hmm this test is passing ._. how does it count it as 3 letters?

The max size does not cover the entire string

12:47

So it only counts until 10 bytes

>>> len("「中国社区服」".encode("utf-8"))
21

i see so i need to make sure the size is big enough

just use str_length

Jupstar ✪

So is this game completely recorded as video?

no clue, but if the game is rly like that then VR will become amazing, if u have the budget

12:55

after nanite & lumen makes things like that accessible

the game is not vr sadly

12:56

https://twitter.com/unrecordgame/status/1649028019741155332/photo/1 if you want more info

Unrecord (@unrecordgame)

Post-reveal: Response to questions and concerns from players. https://t.co/n6hF9aiGiW

Likes

286

str_length("服服服服") // => 12

12:57

so that wont work

hoo thought it was vr (edited)

or you mean strlenth as max bytes?

Shadowsun

https://twitter.com/unrecordgame/status/1649028019741155332/photo/1 if you want more info

so it's gameplay footage

the animation of the hands is far too precise to be vr I think

ReiTW

so it's gameplay footage

normally yes

ChillerDragon

str_length("服服服服") // => 12

Actually I think utf8_stats would also fail on this

ChillerDragon: pass str_length("...") + 1 for max size

Shadowsun

normally yes

Why doesnt he then simply drop a video where he uses a fly cam

13:02

Or wireframes

13:03

Would be the easiest proof

Zero-termination is checked in str_utf8_stats, so you could also pass INT_MAX for max size I guess

ChillerDragon: as max_bytes

Chiller: What are you looking to do btw? Count glyphs? Graphemes?

13:04

Characters?

"characters"

I don't think we even have code to count graphemes in ddnet now that I think about it

Jupstar ✪

Why doesnt he then simply drop a video where he uses a fly cam

Unreal engine is insane, after the camera movement etc... does alot too

Jupstar ✪

Why doesnt he then simply drop a video where he uses a fly cam

personally I agree with you, for me the images are 100% 3d but is this the real gameplay of the game

Learath2

I don't think we even have code to count graphemes in ddnet now that I think about it

Why would you ever need to count graphemes for a game though? This would be impossible unless you know which language it is, right?

we kinda need it for left-right movement of the cursor, no?

13:11

if you have "é" as "e, combining acute accent", then we don't want to place the cursor between those "characters"

https://www.reddit.com/r/rust/comments/12so3j9/is_rust_serde_unique/

r/rust - Is rust serde unique?

48 votes and 26 comments so far on Reddit

Those are glyphs though, aren't they?

no, graphemes are language-independent AFAIK

13:12

glyphs might be something related to rendering, I don't think unicode has a concept of glyphs

i think i have a different problem anyways

13:13

seems like my assumption about fixed width was wrong

13:13

Embedded image

13:13

at least vscode does not match the line lengths

ReiTW

Unreal engine is insane, after the camera movement etc... does alot too

Yeah. We'll i hope it's real BCS then the big game studios were beaten by some hobby artists xdd

Jupstar ✪

Yeah. We'll i hope it's real BCS then the big game studios were beaten by some hobby artists xdd

i think there arent many games unsing unreal engine 5

@Learath2 align server names

Not even matrix tech demo looks realistic enough

maybe my beloved kingdom hearts 4 will use it though

Robyt3

Why would you ever need to count graphemes for a game though? This would be impossible unless you know which language it is, right?

I think there is a huge table of rules to count them. I can see them being maybe useful for spacing issues

Ryozuki

i think there arent many games unsing unreal engine 5

Yeah. But still insane then

Jupstar ✪

Yeah. We'll i hope it's real BCS then the big game studios were beaten by some hobby artists xdd

big game studios are only good to do crunching & release a game after 2weeks

Xd

so normal to see a game like that when people take their time to do things properly

13:15

and not rush cuz they only like money

a table?

13:15

seems like my terminal also ignores fixed width when it comes to those

13:15

Embedded image

heinrich5991

we kinda need it for left-right movement of the cursor, no?

Hm, I think there is a single codepoint version of the more common combinations

so i should replace letters?

For CJK languages there are separate half-width and full-width characters. If you want correct monospaced text you need the half-width characters

Learath2

Hm, I think there is a single codepoint version of the more common combinations

there is, but we're not guaranteed to get it

13:22

ChillerDragon: fixed-width terminal font length of graphemes is a deep rabbithole

13:23

I read a lot of blog posts about that ^^

heinrich5991

there is, but we're not guaranteed to get it

I think if we don't get it I bet we fail. I'm fairly certain we don't have the grapheme rules table

yikes okay where can i buy half width?

Those are separate unicode codepoints, so you'll have to manually translate the full-width to the half-width codepoints

was that done already?

13:41

or do i have to get a table into my code and do some unicode str replace?

https://news.ycombinator.com/item?id=35639673

unionpivo

Tech CEO Applauds an Employee Selling Their Dog to Accommodate Return-to-Office

13:59

@Learath2 we live in a society

Thanks Tech CEO very cool

i tries rust xd ryo

14:12

also that fails me

14:13

Embedded image

Half-width kanji is not usable on modern computers

14:16

https://en.wikipedia.org/wiki/Half-width_kana

Half-width kana

Half-width kana (半角カナ, Hankaku kana) are katakana characters displayed compressed at half their normal width (a 1:2 aspect ratio), instead of the usual square (1:1) aspect ratio. For example, the usual (full-width) form of the katakana ka is カ while the half-width form is ｶ. Half-width hiragana is not included in Unicode, although it's usable on...

xd ffs

14:18

wait but is full width exactly twice as large? then i can use that to calc

rust is not failing here

14:23

https://crates.io/crates/unicode-width

14:24

this is used by all cli tools written in rust

14:24

it tells the width of a utf8 str

14:24

https://unicode-rs.github.io/unicode-width/unicode_width/index.html

unicode_width - Rust

API documentation for the Rust unicode_width crate.

yea i also just saw that

14:53

made me realize they are actualy two columns wide so i can properly offset even wide characters in a terminal

ReiTW

Unreal engine is insane, after the camera movement etc... does alot too

so at desktop i'd say it defs doesnt look as perfect as i thought on mobile i'd still say there is a high chance, even if its 100% in unreal engine 5, that this isn't real time (or i underestimate 4090, or multiple 4090). there are photorealistic videos in UE5 that look insanely good (also with this weird camera movements), eg: https://youtu.be/2paNFnw1wRs but it has a much smaller viewport and the creator said in the comment it was prerendered ^^ So would defs be insane and a game changer

(edited)

Jupstar ✪

so at desktop i'd say it defs doesnt look as perfect as i thought on mobile i'd still say there is a high chance, even if its 100% in unreal engine 5, that this isn't real time (or i underestimate 4090, or multiple 4090). there are photorealistic videos in UE5 that look insanely good (also with this weird camera movements), eg: https://youtu.be/2paNFnw1wRs but it has a much smaller viewport and the creator said in the comment it was prerendered ^^ So would defs be insane and a game changer

(edited)

well on twitter he said it was actual gameplay

16:31

IGN is not the creator

ReiTW

well on twitter he said it was actual gameplay

on twitter he posted the worst answer

16:32

he only said it was recorded from an executable

16:33

he is either hard troll, or noby is not a troll at all

well with keyboard etc..

16:33

ig he meant not from UE directly

its still weird xD

16:33

he could simply toggle wireframes

16:33

takes 5 seconds

16:34

he could go live and play that scene xD

16:34

would create even more hype xD

16:37

i just hope i can soon play minecraft 8k on my 4090 rigs using 10kWh electricity and feel like i am in the matrix

i remember wanting to code smth else but i completely forgot what i wanted to code

meh im having a hard time defining a rust function in the ddnet code all the existing rust code seems so hollow no idea where to slap something like this so i can call it from the c++ code

#[no_mangle]
pub extern "C" fn hello_from_rust() {
    println!("Hello from Rust!");
}

i was hoping this would just work xd

18:24

Embedded image

ah wait RustVersionPrint seems to be a good hello world

18:40

Embedded image

18:40

poggies

https://blog.rust-lang.org/2023/04/20/Rust-1.69.0.html

Announcing Rust 1.69.0 | Rust Blog

Empowering everyone to build reliable and efficient software.

18:53

funny number on 4.20!

xDe

2

Ryozuki

i mean less padding is always better right

false

ChillerDragon

hmm this test is passing ._. how does it count it as 3 letters?

afaik, there's no standard definition of what a letter is

19:01

nvm, you both got answer later in the text

Celebrate

1

Given you do both, which one do you prefer @Voxel ? https://www.reddit.com/r/ProgrammerHumor/comments/12rpylc/design_vs_programming/

Chairn

Given you do both, which one do you prefer @Voxel ? https://www.reddit.com/r/ProgrammerHumor/comments/12rpylc/design_vs_programming/

ddnet doesnt need anything redesigned rn, does it?

https://www.deepmind.com/blog/announcing-google-deepmind

Announcing Google DeepMind

DeepMind and the Brain team from Google Research will join forces to accelerate progress towards a world in which AI helps solve the biggest challenges facing humanity.

19:54

google joining the game

Ryozuki

https://www.deepmind.com/blog/announcing-google-deepmind

i bet it fucking sucks and people are going to exploit it to death

why are u so anti ai

louis

why are u so anti ai

he keeps the balance

20:02

we need someone who hates ai as well xd

troll

louis

why are u so anti ai

because its stupid and every company shouldnt need to get one to "be relevant"

lets be real

20:06

its not stupid

20:06

and its not every company

20:06

its google

20:06

xd

20:06

i need to buy ddnet.ai

20:07

Image attachment

20:07

nvm

Ryozuki

and its not every company

discord

louis

why are u so anti ai

Artist

discord does not need ai yet it addad it anyways (edited)

discord could have a decent use for ai

discord can use ai pretty much anything

to make setting up roles etc

a chatbot is a perfect ai use case

moderation

louis

discord could have a decent use for ai

Antispam ai please. I beg of you

anti racism ai

20:08

kekw

20:08

anti konsti

yall need to incorporate antispam ai into ddnet server

20:08

i always get muted since i have a degenerate typing style

Ai moderation would instantly ban all the edgier people on this discord

i want to incorporate a ai-powered translator to ddnet client

20:09

so i can tell chinese players how much better taiwan is

20:09

troll

watafuk

ok those are actually useful

20:10

chatbots arent

Ryozuki

https://www.deepmind.com/blog/announcing-google-deepmind

i let chatgpt give me a tldr xD

Learath2

Ai moderation would instantly ban all the edgier people on this discord

Current ai is very lib too

"hur hur look at what the funny gpt said!!!"

how do chinese download ddnet?

i just can only picture voxel as a old grandma complaining all day

is it being delivered in usb-s there?

Gewinum

is it being delivered in usb-s there?

yes usb-s

ah the usb-s

my usb-s

remember chatterbox or whatever that chatbot was called

Voxel

"hur hur look at what the funny gpt said!!!"

it can be pretty funny

20:11

specially giving it lot of contextual info about this sv

20:11

i seen it in another server

Ryozuki

i just can only picture voxel as a old grandma complaining all day

get the fuck off my lawn

20:12

i mean what

stable diffusion goes brr

1

1

imagine having a lawn

20:13

thats pretty american

Ryozuki

thats pretty american

if the lawn had a crab and a penquin on it you'd be on the ground kissing the grass

Voxel

if the lawn had a crab and a penquin on it you'd be on the ground kissing the grass

he would... ergh i will not say that

wtf

wat

anyeahs yeah i will forever hate ai chatbots

Voxel

anyeahs yeah i will forever hate ai chatbots

what if we're all ai chatbots designed to make you feel like you're not alone

Ravie

what if we're all ai chatbots designed to make you feel like you're not alone

id end it

nice susan

20:40

kek surname

I think that is the Cum guy from here

20:51

Don't get catfished

eh guys do you know why fix_style.py hardcoded to use only linux clang-format?

20:54

im struggling with my windows setup and 15.0.2 clang-format

Why would you delete ms. cummings msg?

5

gerdoe

eh guys do you know why fix_style.py hardcoded to use only linux clang-format?

wdym

It doesn't support .exe files I guess

21:27

@gerdoe Just push without caring about clang-format. We can fix it.

21:27

Not worth putting in effort for that, it's something trivial

If you have visual studio you can use that to call clang-format with Ctrl+K+D

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