DDraceNetwork - developer

ws-client

<ChillerDragon> @APFFF I don't think I understand your question. But when running a ddnet client or server you can set the config stdout_output_level 1 to print all dbg_msg() calls to the console

still cant see the debug messages :/

What does Friction do? (from BulletTrail()) (edited)

try changing it and see what happens

04:29

friction in general+in ddnet code is almost always how quickly the movement of an entity slows down

1

morning

https://github.com/fokkonaut/F-Client/actions/runs/9729542578/job/26851564182

Support redirect (only if server implements too) · fokkonaut/F-Clie...

F-Client is a client mod for Teeworlds 0.7 developed by fokkonaut. - Support redirect (only if server implements too) · fokkonaut/F-Client@69a6038

05:12

Can someone help with the pipeline? :D

Wanna make a new client release and need the builds

fokkonaut

https://github.com/fokkonaut/F-Client/actions/runs/9729542578/job/26851564182

Im not an expert but I think you can either set dis line https://github.com/fokkonaut/F-Client/blob/69a6038430a43802d3090f89716f62517747c5d0/CMakeLists.txt#L99 to something from here https://cmake.org/cmake/help/latest/policy/CMP0148.html or just write if(POLICY CMP0148) cmake_policy(SET CMP0148 OLD) endif() maybe not justatest

https://memorycorruption.net/posts/rce-lua-factorio/

Bytecode Breakdown: Unraveling Factorio's Lua Security Flaws

Dynamic languages are safe from memory corruptions bugs, right?

I read that post earlier, the author is actually crazy to spend that much work on such a niche exploit.

07:55

I hope Lua has not damaged their psyche

tldr, use rust kek

what would that help

louis

try changing it and see what happens

I did change it but couldnt really notice anything. also building every time

APFFF

I did change it but couldnt really notice anything. also building every time

What did you change it to? If you set it to 1.0f then particle's velocity should never decrease, which should be noticeable. You should only need to rebuild one file and the executable instead of rebuilding everything though, if you only changed a value in effects.cpp.

1

10:43

The velocity is multiplied by the friction value roughly every 0.05 seconds

Robyt3

What did you change it to? If you set it to 1.0f then particle's velocity should never decrease, which should be noticeable. You should only need to rebuild one file and the executable instead of rebuilding everything though, if you only changed a value in effects.cpp.

How can you only rebuild specific file? Im really bad with cmake

10:43

I have tried 1.0f but didnt notice anything justatest

(edited)

APFFF

How can you only rebuild specific file? Im really bad with cmake

What command are you running to build? If you generated a Makefile, make should only rebuild the changed files

Robyt3

What command are you running to build? If you generated a Makefile, make should only rebuild the changed files

cmake --build . -j

APFFF

cmake --build . -j

I think -j8 (with the number of CPU cores to use) is preferred over -j, which spawns as many processes as it can. But this should only build the files you modified. Maybe you also changed another file though. (edited)

I was also wondering, why ./DDNet.exe and ./steam_api.dll get build in /build/Debug while everything else is in /build

I think that an MSVC issue (edited)

10:52

When I use VS I use the executables built in the pack_DDNet-18.3-win64_zip folder

chiller writing a json parser. commit messages are gold.

10:56

would recommend

Robyt3

When I use VS I use the executables built in the pack_DDNet-18.3-win64_zip folder

cant even find that folder

APFFF

cant even find that folder

Maybe you set DEV=ON in the cmake configuration. It will generate more files each time with DEV=OFF but at least you get a build folder that's immediately usable

Robyt3

The velocity is multiplied by the friction value roughly every 0.05 seconds

is friction applidd every 2 ticks?

Alternatively, use MSYS2 and GCC instead of MSVC

louis

is friction applidd every 2 ticks?

Friction for particles is applies every 0.05s locally

ah

11:06

@APFFF if youre on windows are you using visual studio?

louis

@APFFF if youre on windows are you using visual studio?

Yes

@APFFF ah i think since the bullet trails have no velocity friction does nothing here

louis

@APFFF ah i think since the bullet trails have no velocity friction does nothing here

Actually, I was trying to understand where the frequency of particles is determined

add p.m_Vel = random_direction() * (std::pow(random_float(), 3) * 600.0f); inside BulletTrail() and you'll see that if you change friction then the behavior changes

1

11:20

but ig since m_Vel isn't defined, it gets set to 0 somewhere so friction has no effect

but I guess BulletTrail() doesnt even set the frequency?

(actually probably m_Vel is already defined as 0)

yeah, the p.m_Friction = 0.7f; for BulletTrail is misleading, since it has no effect

1

I think the frequency is set in items.cpp at line 647 onwards @APFFF

1

I tried friction on different particles

err or maybe line 125, i didn't read it too much

11:25

although i think @Robyt3 knows more on how to accomplish whatever you're trying to accomplish @APFFF

ATM im just trying to understand things

im not really sure if those lines in items.cpp simply add the particles to some queue which gets handled elsewhere

I thought particles might be an easy entry

but line 125 is initially where the bullet trail particle gets added

How does the timing work in general, is there some kind of delta_time?

Some effects are on different timers (5, 50, 100 Hz), see CEffects::OnRender function

for the frequency, you need to have a look at effects.cpp, there you have the member variables m_Add5hz, m_Add50hz and m_Add100hz

OnRender() gets called for every component "active" on every tick?

those are updated every frame, each going true with a different frequency

1

11:28

(I recently reimplemented all the particles for twgpu)

@Patiga thx, now i got it

why the servers allow 4 player from the same ip but the client can only connect 1 dummy?

Bors Matyas

why the servers allow 4 player from the same ip but the client can only connect 1 dummy?

ddnet client is limited to a single dummy

11:47

it's in the code

make a dummy list

11:48

Dummy[] dummys = new Dummy[]; or smoething

you can join with 2 clients per IP

it would be easier to use with one client ngl

12:02

and im the customer and the customer is always right

Dummy controls would go nuts

program them ai control

12:07

they follow you, unfreeze you...

Bors Matyas

program them ai control

good idea

12:16

u should go implement it

sorry im the customer

the game is open source so you're the worker too unfortunately

1

Einem geschenkten Gaul, schaut man nicht ins Maul

BTW I am waiting for a review since two months in #5949 @heinrich5991 @deen

Does someone know where the bullet projectile texture is set? (As in rotation, position, size, etc.) (edited)

probably here: https://github.com/ddnet/ddnet/blob/2ed17ac8b379eb786bda995d573632463c38509a/src/game/client/components/items.cpp#L26

ddnet/src/game/client/components/items.cpp at 2ed17ac8b379eb786bda9...

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

13:38

haven't touched client code at all but that looks to be the location, at least one of them.

1

Robyt3

[ddnet/ddnet] Pull request opened: #8536 Add button and F1 hotkey in editor to open Wiki page for editor

Add a question mark-button next to the x-button to open the Wiki page https://wiki.ddnet.org/wiki/Mapping in the default web browser. The link is localized so translators can replace it with the respective translated Wiki pages. The hotkey F1 is also added to activate this button. !image

Checklist

[X] Tested the change ingame
[X] Provided screenshots if it is a visual change
[ ] Tested i...

archimede67

[ddnet/ddnet] Pull request closed: #8536 Add button and F1 hotkey in editor to open Wiki page for editor

14:30

github-merge-queue[bot]

[ddnet:master] 2 new commits

9f698d2 Add button and F1 hotkey in editor to open Wiki page for editor - Robyt3 726e5c9 Merge pull request #8536 from Robyt3/Editor-Help-Wiki-Button - archimede67

does someone know how to disable projectiles hitting other players in old vanilla teeworlds servers? i managed to disable player collisions and player hooking with tunes but can't figure out how to disable projectiles hitting other players

ware is poland server

14:42

cyb horse is gone

What are old vanilla teeworlds servers? and what are you working on?

Replying to @timakro does someone know how to disable projectiles hitting other players in ol…

15:39

I don’t know if there is even an option without touching the code. I doubt it.

cyberFighter

ware is poland server

fr

chillerdragon: Is it possible to create a custom teeworlds client in python?

teeworlds esports when

1

https://pic.zcat.ch

Tritt dem Ƥ.I.Ƈ. Community [gCTF/zCatch]-Discord-Server bei!

Sieh dir die Ƥ.I.Ƈ. Community [gCTF/zCatch]-Community auf Discord an – häng mit 280 anderen Mitgliedern ab und freu dich über kostenlose Sprach- und Textchats.

17:39

gctf esport

russian?

Bors Matyas

russian?

you missed a lot of russian fng/block tournaments

https://gwern.net/doc/iq/high/smpy/1984-clements.pdf

18:44

this read is rly interesting

18:45

its about the life of Terence Tao, probs the greatest math guy alive

When add dummyleft and dummy right

isn't Terence Tao featured on some of the Numberphile videos?

probs

19:53

he is alive

poopoo

When add dummyleft and dummy right

never.

meloƞ

never.

why not

#5443 #8275 (edited)

https://github.com/ddnet/ddnet/pull/5443 https://github.com/ddnet/ddnet/pull/8275

Additional binds for control over copy moves by DenysKomisar · Pull...

These simple changes give you complete control over what the dummy should or not copy when using "cl_dummy_copy_moves". This will be helpful for copy fly with dummy for example. Added on ...

new control by TheNofis · Pull Request #8275 · ddnet/ddnet

Motivation: This pull request introduces new features that enable regular players to perform the same actions on a dummy as they would with their primary character. The motivation behind this enhan...

Does anyone know why the particle generation is different in game than on replays? How do the replays work?

APFFF

Does anyone know why the particle generation is different in game than on replays? How do the replays work?

The particles are always random, the server/demo only specifies for example "explosion" and the center position and this creates the explosion sprite and random smoke particles

Robyt3

The particles are always random, the server/demo only specifies for example "explosion" and the center position and this creates the explosion sprite and random smoke particles

I changed BulletTrail() to spawn particles more frequently, though that change is not visible in replays

Does it work for other effects? I think bullet trails might be special because the demo player tries to reconstruct them somehow

Robyt3

Does it work for other effects? I think bullet trails might be special because the demo player tries to reconstruct them somehow

Sorry I was wrong. In the replay its shown "correctly", through when you render the video it doesnt

20:54

Same question tho

Looks like a bug. If you render a demo it breaks bullet trails during normal demo playback until you restart the client

Robyt3

Looks like a bug. If you render a demo it breaks bullet trails during normal demo playback until you restart the client

I think it looks differently during demo rendering because demos are always rendered at cl_video_recorder_fps (default 60 FPS)

Robyt3

[ddnet/ddnet] Issue opened: #8537 Bullet smoke trail effect stops working after rendering demo

1. Render a demo containing bullet smoke trail effects. 2. Play back the same demo after rendering finished. 3. The bullet smoke trail effect is now missing, though it seems like it reappears after a few seconds.

Robyt3

I think it looks differently during demo rendering because demos are always rendered at cl_video_recorder_fps (default 60 FPS)

Do you know what File/Method does that particular rendering?

APFFF

Do you know what File/Method does that particular rendering?

Demo rendering is in video.cpp/h if you mean that

Robyt3

Demo rendering is in video.cpp/h if you mean that

yes ty (edited)

And there is CItems::ReconstructSmokeTrail in items.cpp which seems to reconstruct a matching smoke trail for predicted projectiles I guess

1

Another thing, is it normal that the "local" client has worse perfomance (fps), or is it my code?

If you compiled in debug mode then it's expected to be slower than in release mode

1

def-

[ddnet-web:master] 2 new commits

f934110 Add 100 € anonymous donation - def- 26b9b2a Add 20 € donation by Derp - def-

One last thing: when are methods like CGameClient::OnNewSnapshot() being "triggered"? For example: Damage Indicator for rocket only "triggers" the method once, while Damage Indicator for gun "triggers" it 10 times (where can I influence that?)

CGameClient::OnNewSnapshot is called in client.cpp whenever a new snapshot has been received, you can't really influence that. What problem are you trying to solve?

Robyt3

CGameClient::OnNewSnapshot is called in client.cpp whenever a new snapshot has been received, you can't really influence that. What problem are you trying to solve?

Im trying to only spawn 1 particle on wall collision (damage indication) with gun projectiles instead of 10

The 10 damage indicators are created by the server

if(Item.m_Type == NETEVENTTYPE_DAMAGEIND) passes 10 times, else if(Item.m_Type == NETEVENTTYPE_EXPLOSION) only once

Robyt3

The 10 damage indicators are created by the server

In projectile.cpp there's a call to CreateDamageInd with argument 10

21:27

So you get 10 individual damage indicator particles on the client side

Ah man, I hoped it was client side

I think 0.7 changed this so the number of particles is inside the damage indicator effect

I guess there are only "ugly" workarounds then (edited)

You could remember the positions of all damage indicators in each snapshot to ignore the damage indicators with identical position

21:30

Since all 10 damage indicators should start at the same position

But i guess there is no way to distinguish between "shots" without timing/counting, right? (edited)

No, I don't think you can easily find out which projectile the effect belonged

Is the code asynchronous ?

I don't know what you mean with "asynchronous ". Gameplay is basically all single-threaded

Ah nice

21:37

Guess I used the wrong term, mb

21:41

@Robyt3 thanks for all the help, got exactly what I was trying to do. Just trying to getting to know the project atm, so I really appreciate your help (even though some questions might be a little stupid) (edited)

chillerdragon

What are old vanilla teeworlds servers? and what are you working on?

the "fly" gametype: https://github.com/unique-clan/fly or https://github.com/SushiTee/teeworlds/tree/Fly (edited)