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 2023-02-03 00:00:00Z and 2023-02-04 00:00:00Z

newlesstee

how to create the

c++
void CGameContext::CreatePlayerSpawn(vec2 Pos, int64_t Mask)

without sound ? (edited)

If sendsound isn't called in that function then it is client side

1

chillerdragon

Yea sadly not ._. Getting the tuning right can be a bit annoying. Fokko managed pretty well in F-DDrace (@Jupstar ✪)

❤️

06:54

For some reason I see a rise in new devs coding own little mods. So cool :)

newlesstee

how to create the

c++
void CGameContext::CreatePlayerSpawn(vec2 Pos, int64_t Mask)

without sound ? (edited)

cant, client creates sound when it receives this thing

1

Why maximal speed in ddnet 75 block in second?

ay

That's 270km/h . Faster than most racing games

fokkonaut

For some reason I see a rise in new devs coding own little mods. So cool :)

What, but they aren‘t played that much are they?

I'm not sure, but its cool anyways

07:59

Its growth in the community

I played teeware, it‘s really fun.

Yea, its cool

Please give me a link to download teewars 1.0

https://downloads.teeworlds.com/teewars/

12:03

https://downloads.teeworlds.com/old_releases/

[ddnet/ddnet] Issue reopened: #2640 Enabling DNSBL banning should not ban IPs that are playing already, only new ones

is it safe to cast a int x[32] to unsigned char * ?

yes

14:27

everything is safe to cast to unsigned char *

hmm i see

14:27

and will the sizeof(x) work

14:27

for that unsigned char*?

14:27

func(const unsigned char*pBuf, size_t BufLen)

14:28

func((unsigned char *)x, sizeof(x))

14:28

?

14:28

xd

14:28

my c++ is now rusty

14:28

hehe pun intended

If x is the original data type. It works

14:30

The cast happens in place and not for the original variable

x is a int[32]

14:31

a array with a known size

14:31

array decay sux

14:31

std::array best

14:31

its like c++ loves to lose info

Then it will give u the size of the full array

14:32

Same for std array

meh my problem is that the print looks like overruns

14:32

but in another place it doesnt happen xd

In bytes

14:32

Std::size for element count

std::size fixed it

14:33

sizeof is evil

size of is still important tho

14:35

Working with binary data etc

yeye

14:35

im just rly rusty

i even use it in rust

14:35

xd

xd

14:35

its so hard to use modern c++ in ddnet code

14:35

cuz old code

14:36

bjorne is wrong

14:36

https://www.thecodedmessage.com/posts/stroustrup-response/

My Reaction to Dr. Stroustrup's Recent Memory Safety Comments

The NSA recently published a Cybersecurity Information Sheet about the importance of memory safety, where they recommended moving from memory-unsafe programming languages (like C and C++) to memory-safe ones (like Rust). Dr. Bjarne Stroustrup, the original creator of C++, has made some waves with his response. To be honest, I was disappointed. A...

14:36

good read

modern c++ core features, or modern c++ standard library?

both i guess xd

14:36

probs library

bcs i really think the core features are cool, like variadic templates would be awesome in rust

cuz idk the features

its compile time safe too

Jupstar ✪

bcs i really think the core features are cool, like variadic templates would be awesome in rust

variadic is the infinite params right

(type safe)

i think thats haard

Ryozuki

variadic is the infinite params right

yes but at compile time

there is a rfc somewhere with comments

not like var args

u can probs emulate it with a macro tho

yeah macros are basically infinite power

https://www.memorysafety.org/blog/remy-rakic-compile-times/

Improving Rust compile times to enable adoption of memory safety

Rémy Rakic is helping us enable the adoption of memory safe software through work to improve Rust compile times. We asked him to provide his perspective on the work in this blog post. Thank you for your partnership and contributions, Rémy! Josh Aas, Head of ISRG's Prossimo project Introduction Over the past few months I've been working as par...

but also lot of work, esp procedual ones

Ryozuki

x is a int[32]

int[32] parameter or int[32] something else?

14:38

int[32] parameter is actually int*

its from a struct

14:38

i get from a pRawMsg

then sizeof should work

template <size_t a> void my_func((& myarray)[a]){}

14:39

then u have the array as param

@heinrich5991 well im using that size and multiplying it by 2 + 1 to print its hex value

14:39

with std::size it worked

14:39

xd

14:39

im working on smth that will probs not be accepted

14:39

but its fun

14:39

been long i didnt do ddnet

yeah std::array is maybe more intuitive generally spoken

Jupstar ✪

template <size_t a> void my_func((& myarray)[a]){}

is there a type missing?

.size()

for the array

yeah

14:41

comes before (&

14:41

int (& array)[a]

Ryozuki

been long i didnt do ddnet

what were u workin on again?

14:42

fix skin master register xddd

im tryna make a secure channel

Jupstar ✪

fix skin master register xddd

i doont like that rust code

14:42

im not touching it

xDDDD

14:43

bcs of the includes?

its a cumulative thing

why doesn't rust-analyzer manages them btw?

includes, style, old versions, warp

14:43

it makes me itchy

feels wrong to me

rustfmt manages it

14:43

i think vscode keeps the style used

14:44

Image attachment

14:44

i hecking love c++

i'd have thought rustfmt is part of rust-analyzer? at least for the vscode extension?

Jupstar ✪

i'd have thought rustfmt is part of rust-analyzer? at least for the vscode extension?

no

smth formats my code

Jupstar ✪

smth formats my code

^

rust-analyzer is like running cargo c

14:45

if u right click format in vscode

14:45

it calls rustfmt

i told vscode to use rust-analyze but i guess its doing it internally

xd

yes

14:46

1. it needs auto remove of unused imports 2. there is no include all missing includes

rust-analyzer is a LSP not a foormatter

any ideas?

cargo fix

i find the vscode extension too bad it only runs on save

14:46

didnt find an option to always work

14:47

clangd is better default

hmm i save 5 times per second so

yes but it runs on save and is relatively slow

clangd is incredibly fast

14:47

i will give u that

14:47

but i think its a much simpler work xd

i'd prefer it makes smaller analyze steps

btw if u made rust-analyzer use cargo clippy

14:48

its a bit slower

14:48

cuz more checks

14:48

@Jupstar ✪ wanna have fun in ur code?=

14:48

#![warn(
     clippy::all,
     clippy::restriction,
     clippy::pedantic,
     clippy::nursery,
     clippy::cargo,
 )]

14:48

add this

14:49

on ur lib

14:49

at top

i just use https://twitter.com/m_ou_se/status/1527209443309633536

Mara Bos (@m_ou_se)

New (cursed) Rust proc macro! This one expands to whatever use statements you need to make the rest of the code compile.

Likes

1251

Retweets

180

oh u found her

14:49

the wizard xd

yeah its really funny

How it works? Simple: It reads the compiler errors that happen in the future, parses the suggestions for missing imports, then travels back in time to include those in its expansion before the errors even happened. ⏪ ✨

>

(Without any unsafe code at all!)

14:50

epic

14:51

2023-02-03 15:51:14 I crypto: received client '0' public key '2500bbdb2033f8352aa56fd024746148a54b620a30a578cc6fdfedf355194900'
2023-02-03 15:51:14 I crypto: established a secure channel with client=0

14:51

good shit

14:51

30 mins to find i was using pMsg instead of Msg somewhere

14:55

https://github.com/ddnet/ddnet/compare/master...edg-l:ddnet:encrypted_messages

i'd really love to know which of my rust deps use a c compiler

Jupstar ✪

i'd really love to know which of my rust deps use a c compiler

they will have a build.rs

yeah, heinrich said, replace gcc with a dummy

14:55

probs the easiest xD

@Jupstar ✪ btw do u knoow how to forward declare a define?

14:56

or if its possible

a define as like c macro?

i want to "re export" a define from a include from a library, but not expose the include

14:57

yeah im talking about c++

i mean like #define

ye

14:57

since i didnt know i just defined it too the value i know from the lib

i mean u can always #undef any define

and use static_assert oon the cpp file xd

14:58

but it kind of didnt work

14:58

when i tried

14:58

the value is not updated

14:58

i think cuz cpp files are last or smth

14:59

#define CRYPTO_SESSION_BYTES crypto_kx_SESSIONKEYBYTES i want to do this define in a header, but not include the whole library

14:59

xd

Ryozuki

#define CRYPTO_SESSION_BYTES crypto_kx_SESSIONKEYBYTES i want to do this define in a header, but not include the whole library

then just do it

15:11

defines are not source code

dooing that will include the library header

15:12

into my header

15:12

which i avoid xd

why

so that all library functionality is contained within that cpp file

you can just copy that line into your header file

i did copy the value

15:12

and then added a static_assert on the cpp file

15:12

to maake sure its the saame

15:12

but feels haacky

15:12

check the link i sent xd

which commit

https://github.com/ddnet/ddnet/compare/master...edg-l:ddnet:encrypted_messages#diff-3d269a8b9112e38f6e076b6921916a034692e9dc59506fbb9f218881cdf132c2R11

15:13

the define

15:13

https://github.com/ddnet/ddnet/compare/master...edg-l:ddnet:encrypted_messages#diff-c80b2c76d31cef98f83a3c363c0c7566286bdab072aa00588ac63e0878255617R13

15:13

the assert

ah i see

15:16

i mean if the value never changes i guess this is good enough

15:17

except including the header any other hack might be more messy

now i need to find a nice way to wrap a msg into another that encrypts it

15:18

or smth like that

15:21

time to check python xd

"do you want to install the configuration file from the package maintainers" grub config sweating hard xDD

15:22

but i pressed yes. lets see what breaks

xd

15:25

what u dooin

just did a apt upgrade

15:25

but i dont remember wtf i changed in the grub config

ok i need too do it decoupled

15:29

and u can even do in place encryption and decryption

15:29

this might be possible

15:29

hacker time

Jupstar ✪

but i dont remember wtf i changed in the grub config

Isn't there a way to diff configs in whatever distro you use?

Learath2

Isn't there a way to diff configs in whatever distro you use?

yes but i was too lazy, now its too late xD

zzz

16:57

too much effort

Jupstar ✪

"do you want to install the configuration file from the package maintainers" grub config sweating hard xDD

u can diff normally before that

my head is spinning from looking at packers and unpackers

16:58

and the sixup code mixed there

fix it by removing sixup

16:59

improvement feature

i need to mutate the data of packets marked for encryption by adding a nonce, and then the encryption, which changes the size by adding a MAC at the start

16:59

and then too decrypt the same

17:00

i wonder if this would ever work xd

Image attachment

17:01

im 2 lazy too finish this

17:01

back to playing ff

@Ryozuki cors still doesnt work

no u

17:19

how do u do the calls

Image attachment

this time its ur fault

17:21

curl woorks

17:21

u should learn coors

17:22

`
< access-control-allow-origin: *
< access-control-allow-headers: Authorization
< access-control-expose-headers: Link
< cache-control: max-age=31536000, public

17:22

curl returns this

17:22

@MilkeeyCat

17:22

are u using fetch()

17:22

oor another library

fetch

add mode: 'cors', // no-cors, *cors, same-origin

17:22

to ur fetch

17:22

https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API/Using_Fetch#supplying_request_options

17:23

my keyboard is rly on its end

17:23

it repeats so many keys

17:23

@Learath2 @Jupstar ✪ any good mechanical keyboard u know?

17:23

i dont mind up to 200€

it responds with 200 but gives this

Image attachment

send me the url of the request

17:25

soo i can test

https://ddstats.org/ddnet-693575f.json?sql=SELECT+*%2C+SUM%28Points%29+FROM%0D%0A%28SELECT+race.Timestamp%2C+maps.Points+FROM+race+INNER+JOIN+maps+ON+maps.Map+%3D+race.Map+WHERE+race.Name+%3D+%22Lumpy+%E2%97%90%CF%89%E2%97%91%22+GROUP+BY+race.Map%29%0D%0AGROUP+BY+strftime%28%22%25Y%22%2C+Timestamp%29

it works with curl

Ryozuki

@Learath2 @Jupstar ✪ any good mechanical keyboard u know?

depends for gaming: Corsair K70 with cherry mx speed best keyboard i used so far for general purose my logitec was better tho: it was more silent and less often missclicks the mx speed switches are insanely responsive, even at light touching

i game and program

17:27

xd

17:27

ill check the corsair

17:28

@Jupstar ✪ holy

17:28

thats one expensive keyboard

Ryozuki

thats one expensive keyboard

160€

uh

i bought mine (without RGB) for 130€ i think

Image attachment

https://www.amazon.de/Corsair-Profile-Rapidfire-Mechanische-Tastatur/dp/B07HX65JHB/ref=sr_1_2?keywords=corsair+k70+speed&qid=1675445423&sprefix=%2Caps%2C68&sr=8-2

Corsair K70 MK.2 Low Profile Rapidfire Mechanische Gaming Tastatur ...

Corsair K70 RGB MK. 2 Low Profile Rapidfire Mechanische Gaming Tastatur (Cherry MX Speed: Schnell und Hochpräzise, Dynamischer RGB LED Hintergrundbeleuchtung, QWERTZ DE Layout) schwarz. HID Keyboard Report Rate: 1000Hz.

17:30

buy from germany xd

nonono

17:31

i dont want a german keyboard

xdd

@Jupstar ✪ https://www.amazon.es/Corsair-K95-RGB-Platinum-Retroiluminaci%C3%B3n/dp/B06XD7W3YZ/

Corsair K95 RGB Platinum Teclado Mecánico para Juegos (Cherry MX Sp...

El teclado Corsair K95RGB platinum presenta interruptores mecánicos Cherry Mx Speed incorporados en una estructura de aluminio ligero. El almacenamiento de 8 MB con reproducción de iluminación y macros de hardware permite un acceso de perfil independiente del software externo. Utilice el sistema ...

17:32

what about this

17:32

mx speed

yeah maybe its the newer generation i dunno

oohh

17:32

it supports usb and bluetooth

17:32

perfect cuz my mac doesnt have usbs

xDD

17:35

https://www.amazon.de/gp/product/B01E5LSCS6/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1 this was the one i bought, for 116€ according to my buying history

Corsair K70 Rapidfire Red LED Mechanische Gaming Tastatur (Cherry M...

Corsair K70 Rapidfire Red LED Mechanische Gaming Tastatur (Cherry MX Speed: Schnell und Hochpräzise, Rote LED Hintergrundbeleuchtung, QWERTZY DE Layout) schwarz

Ryozuki

@Jupstar ✪ https://www.amazon.es/Corsair-K95-RGB-Platinum-Retroiluminaci%C3%B3n/dp/B06XD7W3YZ/

but i guess this would be even better since its newer?

17:35

it looks pretty good to me, not cheap

17:35

logitech is good but always feels like the cheapest crap

ye

17:36

xd

if you have * in access-control-allow-origin it means it will respond any origin

17:37

right?

should

@MilkeeyCat ah maybe its cuz ur localhost

17:39

sometimes its weird and localhost is not accepted

fair enough

https://bugs.chromium.org/p/chromium/issues/detail?id=67743

17:39

Chrome does not support localhost for CORS requests (a bug opened in 2010, marked WontFix in 2014).

17:39

@MilkeeyCat did u try with firefox

17:40

https://chrome.google.com/webstore/detail/allow-cors-access-control/lhobafahddgcelffkeicbaginigeejlf

Allow CORS: Access-Control-Allow-Origin

Easily add (Access-Control-Allow-Origin: *) rule to the response header.

17:40

or use this

17:40

when developing

17:40

when u deploy it to a domain it should work^tm

but it should work with any other origins

17:41

riight?

when u use fetch i think the browser ultimately sets the oorigin

17:41

but idk

just open any website

17:42

open dev tools and paste this

fetch("https://ddstats.org/ddnet-693575f.json?sql=SELECT+*%2C+SUM%28Points%29+FROM%0D%0A%28SELECT+race.Timestamp%2C+maps.Points+FROM+race+INNER+JOIN+maps+ON+maps.Map+%3D+race.Map+WHERE+race.Name+%3D+%22Lumpy+%E2%97%90%CF%89%E2%97%91%22+GROUP+BY+race.Map%29%0D%0AGROUP+BY+strftime%28%22%25Y%22%2C+Timestamp%29")

for firefox there is also an extension to force allow it

cors unblocker

Ryozuki

@Learath2 @Jupstar ✪ any good mechanical keyboard u know?

I’ve been very happy with my leopold fc660m

17:59

If it wasn’t insanely expensive I know a keyboard you’d love. UHK 60 v2

18:00

Completely open source, including the hardware, you can even modify the firmware as you wish

It didnt work in browser because server didnt send Access-Control-Allow-Origin header :0 im stoopid

Learath2

Completely open source, including the hardware, you can even modify the firmware as you wish

omg

18:07

maybe my next

MilkeeyCat

It didnt work in browser because server didnt send Access-Control-Allow-Origin header :0 im stoopid

But if so, it wont work on website even if i host it thonk

thonk

the fuck

@Ryozuki: hey uhm could you unban me on the official ddnet discord, meek banned me cause he had a arguement with me in the dms

not even I managed to get banned yet and people want me to shut up (edited)

thats your own problem (@default)

not even I managed to get banned yetz

20:19

i got banned for nothing

xd

20:19

am I talking to the IRC guys using this channel?

im not admin in discord

you are a dev tho (@Ryozuki)

im not admin in discord

doesn't change anything. he got no permission on the discord. all he can do is say a good word about you.

oh bruh (@default)

doesn't change anything. he got no permission on the discord. all he can do is say a good word about you.

How would I make it so that a player(specifc) cannot be hooked by another?

20:30

I don't know how to do it in Character core(it can be made in character entity?)

check for it in the place where hooking another character happens, I guess

22:56

probably somewhere in gamecore.cpp

Exported 314 message(s)