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DDraceNetwork
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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 2021-09-23 00:00:00Z and 2021-09-24 00:00:00Z
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GitHub BOT 2021-09-23 04:30:25Z
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ddnet-maps
[ddnet-maps:master] 1 new commit
3cb9b99 A Rakete - ddnet-maps
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deen 2021-09-23 09:41:02Z
I wanted to report a SteamDB bug but to get to their Discord I need a paid Steam account...
09:42
If someone wants to join https://discord.com/invite/steamdb and report that the Players Trend on graph is broken since they switched to hourly player statistics (compared to the old 10 min interval)
09:48
Example is the top chart in https://steamdb.info/app/412220/graphs/
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Ryozuki 2021-09-23 11:47:55Z
https://www.phoronix.com/scan.php?page=news_item&px=Android-Linux-Upstream-First
Google Finally Shifting To "Upstream First" Linux Kernel Approach F...
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deen
I wanted to report a SteamDB bug but to get to their Discord I need a paid Steam account...
murpi 2021-09-23 12:03:54Z
They use github: https://github.com/SteamDatabase
12:05
maybe you can get in touch with people there
12:11
or this email: defectiveturret@steamdb.info ^^
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deen 2021-09-23 12:35:30Z
Fair enough, opened a bug
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[quakenet] randombit BOT 2021-09-23 13:05:11Z
yay!
13:05
heyho
13:05
can someone enlighten me how could i make a moving platform? (hookable - collision on that is a moving ground)
13:05
or not hookable
13:06
so, a moving collision-on platform. which moves. and u can stand on it. and moves u with it.
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gerdoe 2021-09-23 13:06:30Z
by coding or by mapping?
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[quakenet] randombit BOT 2021-09-23 13:06:51Z
is it possible? i remember a map where there were moving freeze
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gerdoe 2021-09-23 13:07:06Z
yeah its gores mod
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[quakenet] randombit BOT 2021-09-23 13:07:18Z
well, i want to make a map in which there are moving platforms.
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gerdoe 2021-09-23 13:07:33Z
ask qshar then :p
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[quakenet] randombit BOT 2021-09-23 13:08:00Z
so, no possibility on standard DDNet map?
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gerdoe 2021-09-23 13:08:05Z
yep
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[quakenet] randombit BOT 2021-09-23 13:08:11Z
so no
13:08
:D
13:08
too bad. it would be so awesome
13:09
wanted to make a moving boat which moves accross the ocean :D
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gerdoe 2021-09-23 13:10:37Z
if you will not do any gameplay related things with this platform you can animate it kekw
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[quakenet] randombit BOT 2021-09-23 13:13:24Z
oyea, i know.
13:13
but the tees then wouldnt be able to sit in it :D
13:13
they will drown :(
13:14
into the dephts of the ocean :D
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murpi 2021-09-23 13:18:23Z
why not?
13:18
teeworlds supports parallax scrolling
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[quakenet] randombit BOT 2021-09-23 13:19:57Z
but... i dont understand what you mean. i am literally talking about a moving platform in water, from which u can jum out or in. and water outside.
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louis 2021-09-23 13:25:06Z
u could animate the water moving around a still boat
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murpi 2021-09-23 13:25:21Z
you can create the illusion of driving a boat by making the boat static and adding a animated background and if you want to involve gameplay then you'd need to force the player to move into one direction using speeders
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gerdoe 2021-09-23 13:34:25Z
Q: what the point of CCharacterCore m_ReckoningCore in CCharacter if it just keeps updated
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[quakenet] randombit BOT 2021-09-23 13:36:49Z
yea. but then there is no ocean. i was talking about an actual moving platform, while what u say is a fake one. it could be nice for an "Intro" though.
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n000b 2021-09-23 17:02:39Z
Moving real platforms are only possible on kog servers
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Avolicious 2021-09-23 17:15:07Z
Anyone used https://github.com/dtolnay/cxx so far?
GitHub - dtolnay/cxx: Safe interop between Rust and C++
Safe interop between Rust and C++. Contribute to dtolnay/cxx development by creating an account on GitHub.
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Ryozuki 2021-09-23 17:20:36Z
@Avolicious i know ppl in rust community like it a lot
17:20
and dtolnay is the rust magician
17:20
anything he does is bound to be good
17:21
see this? 4 of these are from him xd
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Avolicious 2021-09-23 17:25:30Z
Ah I see 🙂
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Patiga 2021-09-23 20:30:26Z
@Deleted User do you happen to know a profiler with which I can figure out where my occasional 1 sec game freezes come from?
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Deleted User 2021-09-23 20:46:46Z
watch gpu/cpu/ram/motherboard temperatures, cpu/gpu frequences and internet ping jitter and make sure your PSU is good enough
20:47
1 sec delay is pretty long, could possibly be HDD or smth, maybe disable all demo features unplug usb stuff
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Learath2 2021-09-23 21:26:24Z
in the realm of profiling you can try perf on linux, it can collect data to a ring buffer which you can send a signal to save right after the freeze happens
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Deleted User 2021-09-23 21:31:02Z
can perf regonize lags outside of the program? e.g. if the instance is suspended for whatever reason?
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deen 2021-09-23 21:33:37Z
I'd start it with strace, would tell if it's some syscall blocking, like reading from disk or usb access
21:33
@Patiga
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heinrich5991 2021-09-23 21:34:31Z
strace has quite some performance overhead
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deen 2021-09-23 21:35:00Z
But a 1 second delay should be recognizable
21:36
Heh, the strace man page even lists under BUGS: A traced process runs slowly (but check out the --seccomp-bpf option).
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Deleted User 2021-09-23 21:36:45Z
mhh good to know i tested it, from perf looks similar to the sanitizers, so ok
21:37
getpid() = 108924 only suspicious for me
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heinrich5991 2021-09-23 21:44:51Z
why is that suspicious?
21:45
too high? I think most distros enable high PIDs
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Deleted User 2021-09-23 21:45:17Z
ah its the value?
21:45
thought its the number of calls
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heinrich5991 2021-09-23 21:46:52Z
no, it's the returned PID
21:47
hm, in strace at least
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Deleted User 2021-09-23 21:48:29Z
i used -n now, i hope thats the real count
21:50
or maybe -T is useful guess i need to search the internet xd
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heinrich5991 2021-09-23 21:50:20Z
-n is to print the number instead of the name of the syscall?
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Deleted User 2021-09-23 21:50:42Z
the help isnt really exact
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heinrich5991 2021-09-23 21:50:54Z
that's the typical feature of -n
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Deleted User 2021-09-23 21:50:54Z
print syscall number
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heinrich5991 2021-09-23 21:51:00Z
also exists for iptables etc.
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Deleted User 2021-09-23 21:51:36Z
mhh, well thats not intuitive to me, but yeah
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heinrich5991 2021-09-23 21:52:42Z
-c soudns like what you want
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Deleted User 2021-09-23 21:53:15Z
but with -T?
21:53
without time spent it sounds rather useless
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heinrich5991 2021-09-23 21:53:44Z
-T is for individual calls, I think
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Deleted User 2021-09-23 21:53:48Z
oh yeah that looks nice xd
21:53
% time seconds usecs/call calls errors syscall ------ ----------- ----------- --------- --------- ------------------- 66,49 1,519152 2 681823 681564 recvmmsg 16,04 0,366424 2 152108 129395 recvmsg 11,44 0,261435 2 121517 poll 3,89 0,088898 2 36188 5014 futex 0,38 0,008668 5 1481 9 read 0,29 0,006645 1 5836 getpid 0,27 0,006073 2 2839 19 newfstatat
21:55
@Patiga maybe try that
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heinrich5991 2021-09-23 21:56:53Z
this only gives a summary of the whole process, no?
21:57
I think Patiga is looking for something like "the last 3 seconds"
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Deleted User 2021-09-23 21:57:42Z
i dunno how often it happens but usecs/call must shoot up eventually
22:04
but anyway, i've read stuff, that makes no sense to me anyway e.g. the computer case causing laggs xD
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Deleted User 2021-09-23 22:28:09Z
@heinrich5991 do you think a pure rust safe(except some needed code, but mostly userspace) OS + rust user space programs could disable virtual memory translation and the system-user space CPU rings?
22:28
like a proof that memory is used safely (edited)
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heinrich5991 2021-09-23 22:32:15Z
what do you intend to do? I think there are some research OS that do what you mean with webassembly
22:32
but they run into hardware vulnerability problems
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Deleted User 2021-09-23 22:32:53Z
mhh ok, i was just thinking about potentials of higher level languages, that have good performance like rust
22:33
and maybe in a long run also redesigning CPUs again
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Learath2 2021-09-23 22:35:53Z
what is the point of getting rid of the rings? less context switching?
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Deleted User 2021-09-23 22:36:05Z
yes, all in for performance
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Learath2 2021-09-23 22:36:48Z
smells risky 😛
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Deleted User 2021-09-23 22:37:22Z
yeah true, i just always liked to find a way to remove such stuff without destroying the whole world xD
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Learath2 2021-09-23 22:38:25Z
maybe with a subset of rust that could allow formally proving safety?
22:39
idk if such a subset exists/can exist, but if you could formally prove that the user can't do the things the user isn't supposed to do you could get rid of the rings
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Deleted User 2021-09-23 22:39:17Z
yeah
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heinrich5991 2021-09-23 23:09:13Z
the rings add defense-in-depth at least, I wouldn't like to drop them tbh
23:09
I havne't had enough proven software yet, I think
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