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 2021-11-23 00:00:00Z and 2021-11-24 00:00:00Z

i think i had the intel drivers corrupted the game is not crashing for now

05:15

thanks anywasy for helping

[ddnet-web:master] 1 new commit

4e2a198 Remove halloween logos - def-

bluekitty

How in the fuck can the gravity with every tick, let alone the jump value be accurately visualized? I cannot get it on a geometric standpoint where regardless of how much gravity I add, I always need to change my jumping values to be accurate with tile measuring, for example need to change my jumping strenght from a point where my jumping value (blocks / sec) is accurate

13:02

Is there a good mathematic solution for this?

13:03

[ Let's say basic values gravity is 0.5 | always brings down velocity.y jump value and jump strength | jump strength is needed to make nessesary accuracy (blocks / sec) | jump value is the amount of blocks you want to jump REGARDLESS of gravity. ] (edited)

you have acceleration (the change in velocity), velocity and your position (all of the are vectors, in 2d, x and y), on every tick you add the acceleration to your velocity and your velocity to your position, you render your object at your position

13:19

i dont get much what ur problem is

13:24

you should look into some physics intro or smth

13:24

look up "rigid body dynamics"

Well in theory, the calculation for the jump should be like this: velocity.y = jump_value* block_value (horizontal velocity = amount of blocks you want to travel * the amount of blocks you have accurately) But whenever gravity is involved which is a constant calculation: velocity.y += gravity_strength (horizontal velocity = itself + the amount of strength decreased or increased every tick) This makes it so, that whenever you change your gravity strenght which manipulates the force of gravity, Our jump value which we want to jump (blocks) is not going to be accurate anymore (edited)

maybe this is good https://www.toptal.com/game/video-game-physics-part-i-an-introduction-to-rigid-body-dynamics

13:26

eh should u really multiply the gravity on the y?

13:26

i think u should simply add

13:26

its a long time since i done any of this tho xd

13:27

to make it accurately visualize you should multiply by the delta time in your calculations

that's what the wiki is told

what the wiki tells*

it adds 0.5 to itself, basically

13:28

oh, my mistake there, i switched it with stopping motion

Ryozuki

to make it accurately visualize you should multiply by the delta time in your calculations

But then the gravity won't be accurate with block measurements, unless I could (somehow) multiply the delta value with block measures

13:31

but it would be insanely fast -> insanely strong with that calculation, so I have to resolve on different calculations (edited)

Ryozuki

maybe this is good https://www.toptal.com/game/video-game-physics-part-i-an-introduction-to-rigid-body-dynamics

It's realistic body manipulation you sent, technically with 3d involved. What I look for is a proper 2d Kinematic Body guide

their examples look 2d. even if it's 3d, just ignore one dimension and you have the same

ain't what I look for tho

guys, you should add a thing. when playing in team vote for who takes strong. so you can give strong to player and not wait to do solo part before start after him

[ddnet/ddnet] Pull request opened: #4383 Add cl_run_on_join to set command to execute when joining a server

Normal timeout codes don't work anymore, new ones don't support adding commands at the end with ; There was a discussion on Discord, multiple players asked me for this feature already. It's only run on servers that support timeout codes. !screenshot-20211123@163835 ![screenshot-20211123@163831](https://user-images.githubusercontent.com/2335377/143055545-3fdaac3f-9dcf-47c8-b186-05340eb7b...

Smetanolub

guys, you should add a thing. when playing in team vote for who takes strong. so you can give strong to player and not wait to do solo part before start after him

Just use /swap

[ddnet/ddnet] Pull request opened: #4384 Enable sv_swap, more reasonable default for timeout

Since https://github.com/ddnet/ddnet/issues/3806 is fixed, thanks to murpi for reminding

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...

[ddnet-web:master] 1 new commit

9e4d0f4 Update translation status - def-

[ddnet:master] 3 new commits

0780cca Update hungarian (by Cellegen) - def- 0f91f45 Update Chinese translations (by cheeser0613) - def- 70c37c4 Merge #4364 #4367 - bors[bot]

16:30

[ddnet/ddnet] Pull request closed: #4367 Update hungarian (by Cellegen)

16:30

[ddnet/ddnet] Pull request closed: #4364 Update Chinese translations (by cheeser0613)

[ddnet/ddnet] Pull request opened: #4385 full translate catalan

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...

[ddnet:master] 2 new commits

7b2cfc6 full translate - edg-l 37fbf09 Merge #4385 - bors[bot]

17:22

[ddnet/ddnet] Pull request closed: #4385 full translate catalan

[ddnet/ddnet] Issue opened: #4386 Crash in CSaveTeam::Load(int, bool)

``` ================================================================= ==2383146==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x619000baeeb8 at pc 0x000000600813 bp 0x7ffdeb6424d0 sp 0x7ffdeb6424c8 READ of size 4 at 0x619000baeeb8 thread T0 #0 0x600812 in CSaveTeam::Load(int, bool) /home/teeworlds/src/master/src/game/server/save.cpp:533:95 #1 0x62d1a7 in CGameTeams::ProcessSaveTeam() /home/teeworlds/src/master/src/game/server/teams.cpp:949:42 #2 0x5da171 in CGame...

[ddnet/ddnet] Pull request opened: #4387 Don't access switchers out of bounds (fixes #4386)

It's possible that a map was saved with a different amount of switchers than it has at the moment. Happened on Jao Shooter. I'll check with mapper if they changed the number of switchers.

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 boun...

It's quite concerning how long it takes to compile rustc

20:04

Firefox and chromium take like negligible amounts of time compared to rustc

i never tried to do that

20:05

monkaS

20:06

imho even on gentoo its not worth

20:06

i would use rustup

Llvm itself was much quicker too. Idk maybe I'm doing sth wrong

what if u want to install another toolchain/target

20:06

Image attachment

I might move to rustup too yeah. Never expected it to take quite so long

greenthing

Maybe only bootstrapping is slow and rustc can build rustc faster?

https://rustc-dev-guide.rust-lang.org/building/how-to-build-and-run.html

How to Build and Run the Compiler - Guide to Rustc Development

A guide to developing rustc

I think bootstrapping compiles the compiler three times

why 3?=

20:08

i never bootstrapped anything

I'm on stage 1 and even that is taking so long

Learath2

I'm on stage 1 and even that is taking so long

what cpu u got? curious

1 from the old compiler, 2 from the new compiler compiled by the old compiler and 3 compiled from the new compiler compiled by the new compiler from the old compiler

20:09

ideally the artifacts 2 and 3 are equal

Ryozuki

what cpu u got? curious

4770k so I only have 4 cores. Which probably isn't helping but other things compile in reasonable amounts of time, idk why rustc is being so weird

did u enable lto?

I really want to get a new cpu. The new ryzens are so cool with their many cores

lto is like hell

20:11

xd

20:11

i have a new ryzen AMD Ryzen 5 5600X (12) @ 3.700GHz

20:11

greenthing

Ryozuki

did u enable lto?

Nah, I only enable that for a couple things

20:11

Systemwide lto usually breaks a lot of things

:o

20:12

maybe not now?

It used to the last time I tried 6 years ago :P

yeah 6 years i guessed that

20:12

monkaS

20:12

brb food

Ooooh no I forgooot

20:13

I wanted to use clang as my system compiler this time around to test it

clang compiles faster for me

20:25

tested with ddnet

20:25

compiles ddnet faster*

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