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 2022-04-17 00:00:00Z and 2022-04-18 00:00:00Z

that was quick xd

I just found the server setting "mapbug" with the example double explosion. https://ddnet.tw/settingscommands/ I think this exact bug caused the solomap "Lunar Base.map" to become unfinishable. Can you re-release it with the fix?

[ddnet/ddnet] Issue closed: #4982 Memory leak of font texture data

Jupstar ✪

that was quick xd

thats another repository, not wgpu, so I'll have to do it myself

so hard for such small gain

Sticker

i just realized, Alpha is intuitive for programmers

12:42

but gamers might find Opacity better to understand

12:43

thus i recommend changing Alpha to Opacity in settings

12:48

@Jupstar ✪ is it possible to render something on over everything else no matter where the render call is?

12:48

like some z level

12:50

ok i might have to rework tooltips a bit

12:50

do we have hashmaps in ddnet? xd

12:51

time to use std::unordered_map

opacity is better

@lynn change it

13:03

free pr for you

i already have the role

13:03

greenthing

menus_settings.cpp:2690

ur right tho i should

gotta keep it up

honestly if i ever get tired of mapping that's where my efforts will go again

13:04

dev learning

ye also more useful in life

13:04

than making tw maps

13:04

BASED

i have a college degree i just don't care

booo

13:04

degree means nothing

i would rather play teeworlds and stream sorry

no fun

Sadge

more fin

13:05

fun

you dont understand the joy of coding in rust

13:05

BASEDHALT

13:05

im making a tooltip cache rn

13:05

so i render it at the end

13:05

otherwise some tooltips appear behind

tip for vscode users, the clangd server is far superior to the microsoft provided one

Ryozuki

@Jupstar ✪ is it possible to render something on over everything else no matter where the render call is?

in ddnet it would be ez

14:36

we dont use the stencil buffer nor depth buffer, so we can abuse either one for that

14:37

but rn its not possible

14:38

could just delay the drawcall

ye

14:38

i think im overcomplicating things tho xd

14:38

Image attachment

14:38

monkaS

14:38

trying to use modern cpp reminds me of how much greater rust is

14:39

fuckyousnail

using modern cpp reminds me how bad old cpp is

well thats even worse ye

14:40

it sucks to not know if what im doing is some massive UB which u can know if u read section 1100 paragraph 60 of the standard

14:41

hisnail

gsaasstgqrawerthwrqarqahhrsafrhs

1

14:42

@Jupstar ✪ does this make sense? i have the map, i insert the tooltip using fancy modern syntax (m_Tooltips[ID] = NewTooltip;) and then i have to get the reference from the map to get the correct reference right?

Image attachment

14:42

to store it on the optional

Ryozuki

it sucks to not know if what im doing is some massive UB which u can know if u read section 1100 paragraph 60 of the standard

i tell ya, its not about UB, its about intuitivity

14:43

rust just makes some of c++ UB non UB, integer overflows etc

14:43

or shifting or whatever

cuz its defined

14:43

the behaviour

14:43

on debug it wraps on release it panics iirc

14:43

xd

14:44

but panicking is better than UB

thats why i tell ya its about intuitivity

but rust is much more than that

14:44

it provided safety

14:44

idk how to tell it

14:44

its a feeling

14:44

anyway

14:44

can u answer

14:44

my question

14:44

(img)

Ryozuki

@Jupstar ✪ does this make sense? i have the map, i insert the tooltip using fancy modern syntax (m_Tooltips[ID] = NewTooltip;) and then i have to get the reference from the map to get the correct reference right?

this isnt really new syntax

14:45

u can also just use insert and see the return value

14:45

it cannot insert twice

Image attachment

14:45

c++11

14:45

fancy by c++ standards

what map are u using?

14:45

hash map?

unordered_map

yeah ok

14:46

that whole thing is c++11

from what i see insert doesnt return a reference to the inserted thing (edited)

14:46

which is what i want

but syntax is same as map

Ryozuki

it sucks to not know if what im doing is some massive UB which u can know if u read section 1100 paragraph 60 of the standard

Be glad the prescribed behaviour is actually documented and at a predictable place. If you want a similar amount of detail about a rust function you'd need to refer to descriptive docs and any certain answer would definitely require a dive into the source

but your code is fine i think

learath writing the holy grail of c

Jupstar ✪

but your code is fine i think

thats pog

14:47

@Jupstar ✪ but see how you have to say "i think"

14:47

u can never be sure in cpp

14:47

on rust i would be affirmative

14:47

BASED

xd

14:48

so why dont u emulate the rust way and write like that

thats what i did

14:48

im writing c++ the way i do rust

well then its fine ofc ^^^

thats why i used optional xd

14:48

optional + reference instead of the hazardous null pointer

14:48

boooo

14:49

theorically c++ experts say its zero cost right?

14:49

xd

with Ofast + lto it should be competly outimized out

Ryozuki

@Jupstar ✪ but see how you have to say "i think"

And to rectify any "i think" Jupstar can look at the very detailed standard

with o2 probs not xd

isnt UB kinda like an oxymoron when there is a standard

14:50

the standard should cover everything

I mean that might be desirable, but that's not a part of the definition of a "standard"

i think this is mostly bcs its not always so ez if u allow raw pointers you can do any shit with it how should u define all behavior

14:53

if i mem_zero(this) and then wonder why my vptr is not working... xD

14:53

i guess u could say unsafe in rust is also UB

Jupstar ✪

i think this is mostly bcs its not always so ez if u allow raw pointers you can do any shit with it how should u define all behavior

there is a effort to do that by a rust dev iirc

Standards are there to prescribe behaviour, they say how certain things work and anything they dont say is not in the scope of the standard

"pointer provenance"

14:54

https://www.ralfj.de/blog/2020/12/14/provenance.html

Pointers Are Complicated II, or: We need better language specs

Some time ago, I wrote a blog post about how there’s more to a pointer than meets the eye. One key point I was trying to make is that just because two pointers point to the same address...

i mean more prefice stuff is always good

14:54

tho here again, its about intuitivity.. u will never read and remember the whole standard xD

14:54

or look up every line of code u do

https://github.com/rust-lang/rust/issues/95228

Tracking Issue for strict_provenance · Issue #95228 · rust-lang/rust

Feature gate: #![feature(strict_provenance)] read the docs get the stable polyfill subtasks This is a tracking issue for the strict_provenance feature. This is a standard library feature that gover...

Anyway, my point is I like having the standard as a definitive source. If I want to know whether an iterator becomes invalid after a certain action I know where exactly to look

well i look at cppreference and usually it shows the most relevant stuff

Ryozuki

optional + reference instead of the hazardous null pointer

Is this really any safer than allowing a null ptr? Won't you need a check for the optional either way?

the optional forces you to check

14:57

u cant forget

14:57

it wont compile otherwise

Ah, that's nice to have

ah well

14:58

maybe it doesnt force you to check

14:58

as isi

14:58

as is

14:58

Image attachment

14:58

its not as powerful as rust sadly

14:58

xd

14:59

If *this contains a value, returns a reference to the contained value.

>

Otherwise, throws a std::bad_optional_access exception.

14:59

meh

14:59

rust pattern matching is just god

I wonder if an optional reference wrapper gets size optimized properly like in rust

Learath2

I wonder if an optional reference wrapper gets size optimized properly like in rust

check the standard

c

fuckyousnail

c++ stnadard's biggest mistkae

15:00

introduce exceptions

ye

15:00

how rust handles errors is better

Storing an extra flag for presence would be wasteful

in c++23 there will be a std::result

15:00

ill abuse it

Ryozuki

check the standard

The standard allows it, it's up to the implementor whether they optimize it

ah it will be called std::expected

15:01

http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4015.pdf

15:01

2014 paper kekw

yeah they too slow

15:01

we need boost

15:01

flat vectors

15:01

flat strings

15:02

i need more stack vars without c style stuff

We can consider that expected<E,T> is a generalization of optional<T> providing in addition a monad interface and some specific functions associated to the unexpected type E. It requires no changes to core language, and breaks no existing code.

15:02

yet it needs decades to be coonsidered

15:02

i hecking love c++

15:02

and the grandpas

The only sadge thing about the legacy languages is their turtle pace

@Ryozuki just make ddnet in rust, and pls start with server

15:05

and make it modular

15:05

for mods

@Jupstar ✪ RiiR

15:09

rewrite it in rust

xd

lot of ppl hate ppl who say to do that

15:09

xd

15:09

ur daring today arent we

any game engine with 3d and works on android?

15:09

and no lua xd

godot

i want rust bindings

godot has rust bindings

i mean rust game engine

15:10

mh ok

ah

15:10

im following closely https://bevyengine.org/

Bevy - A data-driven game engine built in Rust

Bevy is a refreshingly simple data-driven game engine built in Rust. It is free and open-source forever!

15:10

they implement a novel ECS engine

15:10

and nearly got sued by UNITY

15:10

xd

15:10

android is planned for the future tho

i have some ideas for games

15:11

1 also non android

the best traditional 3d engine for rust is https://github.com/FyroxEngine/Fyrox

GitHub - FyroxEngine/Fyrox: 3D and 2D game engine written in Rust

3D and 2D game engine written in Rust. Contribute to FyroxEngine/Fyrox development by creating an account on GitHub.

15:11

it has an editor too

15:11

for scenes

15:11

https://www.youtube.com/watch?v=N8kmZ9aBtZs

rg3d 0.22 - feature highlights

i am never sure how i can judge demo content

15:12

but the light looks awful xdd

xd

15:12

he is doing a game

15:13

https://www.youtube.com/watch?v=O_ETjSkVBME

Station Iapetus - Dev Log #4

15:13

note this is from 20211

15:13

2021

15:13

it might have changed

15:13

i think its all done by a single dev

15:13

its like the rust jupstar

15:13

xd

xd

15:14

but maybe godot with rust bindings could be project to test for me

ye

15:14

https://github.com/godot-rust/godot-rust

GitHub - godot-rust/godot-rust: Rust bindings for GDNative

Rust bindings for GDNative. Contribute to godot-rust/godot-rust development by creating an account on GitHub.

rust can easily cross compile to windows?

15:15

from linux

you install the target

15:15

with rustup

15:15

and then cargo build --target x86_64-pc-windows-msvc

15:16

https://github.com/KodrAus/rust-cross-compile

GitHub - KodrAus/rust-cross-compile: An example of cross compiling ...

An example of cross compiling Rust apps to Linux on Windows, with only rustup - GitHub - KodrAus/rust-cross-compile: An example of cross compiling Rust apps to Linux on Windows, with only rustup

ok

15:16

ah rip they dont have godot 4 bindings

15:16

i want vulkan ofc xd

is godot 4 out?

no

ah

15:17

u surprised me

i just use nightly code xd

im waiting for godot 4 since years

yeah

Commercial game engines look so good I'm always a little shocked when I see indie attempts at 3d game engines

but the game i have in mind is pretty small anyway

Learath2

Commercial game engines look so good I'm always a little shocked when I see indie attempts at 3d game engines

well, usually indie devs are not artists

15:17

but ye

15:17

its already a feat to do a 3d engine solo

15:18

unreal engine 5 loooks rly good

15:18

if only it wasnt owned by epig games

15:18

why valve cant put effort

Ryozuki

its already a feat to do a 3d engine solo

It's definitely a great accomplishment

15:18

I always wanted to try one but just never really had the time for it

https://github.com/o3de/o3de amazons open source game engine sponsored by linux foundation xd

GitHub - o3de/o3de: Open 3D Engine (O3DE) is an Apache 2.0-licensed...

Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D engine that enables developers and content creators to build AAA games, cinema-quality 3D worlds, and high-fidelity simulations wit...

there is a succesfull 3d game made in rust tho

15:19

voxels tho

15:19

https://veloren.net/

The Veloren devblog website

15:19

check it out

15:19

its open source

15:19

if u know cube world

yeah xd

this might be its successor

but i want epic looking stuff xd

This has pretty cute lighting

have u ever played elite dangerous

15:21

not open source

15:21

but it looks gorgeous

15:21

if ur a space f an

15:21

greenthing

imagine having ur own 3d artists

15:23

harder to find than coders xd

Ryozuki

have u ever played elite dangerous

it's pretty fun in vr too

15:24

I did a lot of deep space arbitrage back in the day

Jupstar ✪

harder to find than coders xd

cuz they all got work

15:24

(maybe)

15:24

im grinding for a fleet carrier

15:24

its just 5.000.000.000 credits

15:24

i got 1.000.000.000

Learath2

I did a lot of deep space arbitrage back in the day

btw now u can walk on stations and fleet carriers

15:25

im waiting for the day u can walk in ur ship

15:25

they may look small when ur seated

15:25

but they are freaking big

Yo bois whats the lifetime of ur m2 ssds? My laptop is at its 3rd replacement in a few years now. Thats not normal is it?

guess i am generally lucky with storage, never had any die out yet

[quakenet] ChillerDragon

Yo bois whats the lifetime of ur m2 ssds? My laptop is at its 3rd replacement in a few years now. Thats not normal is it?

Definitely not normal, 3 years in I didnt replace a single one of mine

ye not normal

16:57

i havent replaced mine either

16:57

do u have some magnets nearby or smth

16:58

maybe it does smth idk xd

16:58

or u have bad luck with cosmic rays

16:58

https://www.nature.com/articles/news980730-7

Cosmic rays and computers

Nature - Cosmic rays and computers

Ryozuki

voxels tho

huh

16:58

oh wait nvm LOL

lmao

16:58

u know what a voxel is right

yeah

16:59

i have this name because it was a 1up from an old username that had pixel in it

Pommes IV

hello, i want to ask if we could add voice chat? I already implemented it on a testmod and client and i want todo a pullrequest, but first i want to hear your opionion of it, because i thnink some of you guys doesnt like it

lol send the link to your client / server I want to test it

Pommes IV

hello, i want to ask if we could add voice chat? I already implemented it on a testmod and client and i want todo a pullrequest, but first i want to hear your opionion of it, because i thnink some of you guys doesnt like it

and the github link pls

its hard to justify voip

17:25

lot of resources when u can use discord

[quakenet] ChillerDragon

sudo apt install build-essential cmake git google-mock libcurl4-openssl-dev libssl-dev libfreetype6-dev libglew-dev libnotify-dev libogg-dev libopus-dev libopusfile-dev libpnglite-dev libsdl2-dev libsqlite3-dev libwavpack-dev python libx264-dev libavfilter-dev libavdevice-dev libavformat-dev libavcodec-extra libavutil-dev libvulkan-dev glslang-tools spirv-tools

thx

[quakenet] ChillerDragon

sudo apt install build-essential cmake git google-mock libcurl4-openssl-dev libssl-dev libfreetype6-dev libglew-dev libnotify-dev libogg-dev libopus-dev libopusfile-dev libpnglite-dev libsdl2-dev libsqlite3-dev libwavpack-dev python libx264-dev libavfilter-dev libavdevice-dev libavformat-dev libavcodec-extra libavutil-dev libvulkan-dev glslang-tools spirv-tools

└─$ sudo apt install build-essential cmake git google-mock libcurl4-openssl-dev libssl-dev libfreetype6-dev libglew-dev libnotify-dev libogg-dev libopus-dev libopusfile-dev libpnglite-dev libsdl2-dev libsqlite3-dev libwavpack-dev python libx264-dev libavfilter-dev libavdevice-dev libavformat-dev libavcodec-extra libavutil-dev libvulkan-dev glslang-tools spirv-tools [sudo] password for kio: Reading package lists... Done Building dependency tree... Done Reading state information... Done Package python is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source However the following packages replace it: python2-minimal python2 python-is-python3 dh-python 2to3 E: Package 'python' has no installation candidate (edited)

Ryozuki

lot of resources when u can use discord

its 2022 and we worry about resources for voice chat. So far, I don't think our servers have a real resource problem (without having detailed insights). Our main problem is rather any dudes who ddos our servers. On the server side, I don't think much more resources would be needed, depending on how you want to implement it. only our snapshot architecture might suffer from the increased bandwidth requirements and would need to be reworked

Ryozuki

its hard to justify voip

I have the feeling that Shaddy has not yet implemented voice chat. I can't find any changes regarding proximity chat or voice chat on either ddnet or teeworlds. Maybe he never uploaded it to github, which would be a shame when you've done so much work. (also he was last active end of 2019... so we will never hear from him I think) (edited)

Image attachment

Learath2

This has pretty cute lighting

you can also zoom out insanely far in this game and it looks and feels amazing

19:16

completely zoomed in you are in first person

19:16

zoom out a little and you are in third person

19:16

and then you can zoom further to see the landscape, the mountains lakes

19:17

and the sky is gorgeous, sometimes you get something like northern lights (can't remember, might just be night time), and it looks even more beautiful then

kio

└─$ sudo apt install build-essential cmake git google-mock libcurl4-openssl-dev libssl-dev libfreetype6-dev libglew-dev libnotify-dev libogg-dev libopus-dev libopusfile-dev libpnglite-dev libsdl2-dev libsqlite3-dev libwavpack-dev python libx264-dev libavfilter-dev libavdevice-dev libavformat-dev libavcodec-extra libavutil-dev libvulkan-dev glslang-tools spirv-tools [sudo] password for kio: Reading package lists... Done Building dependency tree... Done Reading state information... Done Package python is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source However the following packages replace it: python2-minimal python2 python-is-python3 dh-python 2to3 E: Package 'python' has no installation candidate (edited)

help

ok solve: remove python from the command (is preinstalled :D)

guys i just found something bad. i always did use entities with default background, but recently, i took backgground from some map

20:02

and

20:02

when u use background from any map you have input delay

20:03

its not that big, but i play like 8+years with entities and i feel this delay immidiately

is ur pc bad

also delay exists when you have much pages of text in console

?

Ryozuki

is ur pc bad

its 3080ti and i7

Smetanolub

also delay exists when you have much pages of text in console

are u on latest ddnet?

20:04

what i7

20:04

i7 says nothing

yes, i did test it on latest version too

if ur cpu is bad ur gpu can be the best it sucks

Ryozuki

i7 says nothing

i7700k

Ryozuki

if ur cpu is bad ur gpu can be the best it sucks

wdym i7 is very good cp

i remember some fixes about text console

20:05

but idk

20:05

are u on vulkan?

nope, i dont use latest version cuz u deleted ping filter

20:05

1.17 rc

20:05

but i did test on latest ver too

ah then i wont help you

20:05

greenthing

20:06

im anti anti updaters

Ryozuki

im anti anti updaters

?

20:06

you dont read what i did say?

yeah

20:06

but i dont care xd

same bug on latest version

maybe someone else can help u

20:07

you chose to not update, thus u chose to opt out of any improvements

20:07

my opinion is, deal with it

20:08

also if both versions work bad its prob ur pc

mf dont read my text, but text me

20:08

lol

mf = motherfucker right

20:10

i get it

20:10

xd

even on my bad pc i dont get input lag

he might have installed a bot client

20:12

and got a virus

20:12

KEKL

Smetanolub

when u use background from any map you have input delay

check if v-sync is enabled, it may cause delay

20:59

also fsaa samples

[ddnet-scripts:master] 1 new commit

380e702 Warn about editing settingscommands manually - def-

21:07

[ddnet-scripts:master] 1 new commit

c1c00fc Warn about editing settingscommands manually - def-

21:07

[ddnet-web:master] 1 new commit

930e145 Update settings&commands - def-

21:10

[ddnet:master] 2 new commits

ccd748f Add UBSan and ASan to CI - ChillerDragon c5e59db Merge #4970 - bors[bot]

21:10

[ddnet/ddnet] Pull request closed: #4970 Add UBSan and ASan to CI

21:10

[ddnet/ddnet] Pull request opened: #4991 Initialize CCharacter::m_NumInputs of game server

Shouldn't affect anything, but better safe than sorry.

Checklist

[ ] Tested the change ingame
[ ] Provided screenshots if it is a visual change
[ ] Tested in combination with possibly related configuration options
[ ] Written a unit test if it works standalone, system.c especially
[x] Considered possible null pointers and out of bounds array indexing
[x] Changed no physics that affect existing maps
[ ] Tested the change with [ASan+UBSan or valgrind's memcheck](htt...

[ddnet/ddnet] Pull request opened: #4992 Add sanitizer runs to bors too, ignore pnglite shift ubsan issue

@ChillerDragon

Checklist

[ ] Tested the change ingame
[ ] Provided screenshots if it is a visual change
[ ] Tested in combination with possibly related configuration options
[ ] Written a unit test if it works standalone, system.c especially
[ ] Considered possible null pointers and out of bounds array indexing
[ ] Changed no physics that affect existing maps
[ ] Tested the change with [ASan+UBSan or valgrind's memcheck](https://github.com/ddnet/ddnet/#using-addr...

[ddnet/ddnet] Pull request closed: #4991 Initialize CCharacter::m_NumInputs of game server

21:37

[ddnet:master] 2 new commits

887e667 Initialize CCharacter::m_NumInputs of game server - Zwelf 96710aa Merge pull request #4991 from Zwelf/pr-initialize-num-input - def-

[ddnet/ddnet] Pull request opened: #4993 Unselect text after ctrl-u

Checklist

[ ] Tested the change ingame
[ ] Provided screenshots if it is a visual change
[ ] Tested in combination with possibly related configuration options
[ ] Written a unit test if it works standalone, system.c especially
[ ] Considered possible null pointers and out of bounds array indexing
[ ] Changed no physics that affect existing maps
[ ] Tested the change with [ASan+UBSan or valgrind's memcheck](https://github.com/ddnet/ddnet/#using-addresssanitizer--u...

22:26

[ddnet/ddnet] Issue opened: #4994 Vulkan renderer on Linux with Intel GPU: High CPU load, low FPS

Something seems to have changed recently, I'm now seeing only 25 fps but 500% CPU usage with Vulkan. Used to work better a while ago, also fine with OpenGL 3.3.

[ddnet/ddnet] Pull request opened: #4995 fix #4478

it fixes bad game layers for the blockworlds mod by checking what entities you use. If this PR is accepted, I might take a look for the other mods. note, i don't really know if it's important but i had to add a new tile in mapitems.h, hope this wont be a problem

Checklist

[x] Tested the change ingame
[ ] Provided screenshots if it is a visual change
[ ] Tested in combination with possibly related configuration options
[ ] Written a unit test if it works standalone, ...

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