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Posted: 2/24/2015 7:27 PM
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YaLTeR
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Joined: 12/2/2011
Posts: 129
Location: Moscow, Russia
In the Source games' speedrun community the runs done with host_timescale are called TSA-s (timescale-assisted) rather than TASes, especially now that advanced TAS tools are available for GoldSource and very basic scripting tools are available for Source which show how much the difference is between human-slowmotion and fully scripted runs.
Pushing Half-Life to its limits.
Posted: 6/15/2015 4:19 PM
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skypickle
Joined: 6/14/2015
Posts: 19
please enlighten me as to how LUA scripting is being used in half-life 2 and other source games? or are you using a different scripting language to assist your gameplay? PS: I am even more of a beginner than the OP.
Posted: 6/15/2015 7:14 PM
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z1mb0bw4y
She/Her
Joined: 11/26/2012
Posts: 70
skypickle wrote:
please enlighten me as to how LUA scripting is being used in half-life 2 and other source games? or are you using a different scripting language to assist your gameplay? PS: I am even more of a beginner than the OP.
It's not LUA scripting. Scripts or scripting in the Source community it what we call programming or automating inputs, basically.
Posted: 6/19/2015 8:02 AM
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packsciences
Joined: 6/14/2014
Posts: 47
We use Source Pause Tool made by Yalter & config files
Posted: 1/24/2016 7:29 PM
Post subject: TAS of Portal
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hegyak
Editor
Joined: 3/31/2010
Posts: 1466
Location: Not playing Puyo Tetris
Link to video I did NOT run this. It's also VERY fast and WTF.
When TAS does Quake 1, SDA will declare war. The Prince doth arrive he doth please.
Posted: 1/24/2016 8:37 PM
(Edited: 1/24/2016 8:40 PM)
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Dimon12321
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Editor, Reviewer, Experienced player (597)
Joined: 4/5/2014
Posts: 1227
Location: Romania
Yeah, it's WTF! Sometimes I don't know what is going on! YalTeR told me that they had lots of desyncs during the progress. He thinks it's a problem with physics. Anyway, I didn't expect this result!
TASing is like making a film: only the best takes are shown in the final movie.
Posted: 1/24/2016 8:38 PM
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YaLTeR
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Joined: 12/2/2011
Posts: 129
Location: Moscow, Russia
Yup, the physics are sometimes (often) inconsistent and it's something in the vphysics DLL which I don't want to dig into.
Pushing Half-Life to its limits.
Posted: 1/24/2016 9:12 PM
(Edited: 1/25/2016 6:04 AM)
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YaLTeR
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Joined: 12/2/2011
Posts: 129
Location: Moscow, Russia
Explanation video: Link to video To clarify, the TAS and this video were NOT made by me.
Pushing Half-Life to its limits.
Posted: 1/24/2016 9:22 PM
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Bisqwit
Editor, Active player (297)
Joined: 3/8/2004
Posts: 7469
Location: Arzareth
Well that wasn't complicated at all.
Posted: 1/24/2016 10:52 PM
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DemonStrate
Joined: 4/18/2006
Posts: 179
Location: East Petersburg, PA
Any chance that Jukspa's run could make it onto the site? :-D
"I think we can put our differences behind us... for science, you monster."
Posted: 11/30/2016 4:21 AM
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c-square
Active player (378)
Joined: 9/25/2011
Posts: 652
Speedy TAS of 2015
DemonStrate wrote:
Any chance that Jukspa's run could make it onto the site? :-D
Seconded!! Can we make Portal an authorized TAS engine, allowed to run only one game: Portal?
Posted: 12/4/2016 10:00 AM
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YaLTeR
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Joined: 12/2/2011
Posts: 129
Location: Moscow, Russia
There's a number of problems with the current state of TAS tools for Portal, and frequent desyncs is a major one.
Pushing Half-Life to its limits.
Posted: 12/6/2016 7:27 PM
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packsciences
Joined: 6/14/2014
Posts: 47
YaLTeR wrote:
There's a number of problems with the current state of TAS tools for Portal, and frequent desyncs is a major one.
FeelsBadMan
Posted: 9/29/2018 1:56 PM
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keylie
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Editor, Emulator Coder, Expert player (2844)
Joined: 3/17/2013
Posts: 392
SNES TAS of 2023 PC TASer of 2020 PC TAS of 2020 TASer of 2019 PC TASer of 2019 First edition TAS of 2019 PC TAS of 2019 TASer of 2018 PC TASer of 2018 First edition TAS of 2015 First edition TAS of 2014 Computer TAS of 2013
I'd like to try to port the current Portal TASes to libTAS to see if it would work, but I'm unsure what would be the best way to do it. Would it be better to: - Parse SPT .cfg files and convert/export to libTAS input files - Parse HL2DEMOS .dem files and convert/export to libTAS input files - Patch SPT, play the demos inside Portal with SPT plugin loaded so that it prints inputs into a file.
Posted: 9/29/2018 5:09 PM
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YaLTeR
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Joined: 12/2/2011
Posts: 129
Location: Moscow, Russia
Hmm, let me think. Before you try converting any TASes, I must say that they will probably desync even if ran with a theoretical Linux SPT on the Linux Portal. First of all it's a different version (the game is usually ran at the 5135 version which came out before Valve made Linux ports), and secondly I tried running some Half-Life TASes on Linux, on the same Half-Life engine version as on Windows (the Half-Life TAS tool, BunnymodXT, is cross-platform), and they desynced, even if I replaced all the autostrafing in scripts with final button inputs. This is most likely due to different floating point assembly instructions leading to very slight precision loss which quickly adds up in the 3D world of Half-Life and the precise nature of TASes. Now, demos won't be a good approach because they are lossy and don't really capture input properly (they capture player positions and angles and whatnot). I would go with converting the scripts, however first you'll need to extract the final inputs since the scripts contain commands like "strafe optimally into this direction". This must be done by modifying SPT, I guess I can help here. Then it might work or it might not, who knows: SPT doesn't use the console commands like +jump or +forward for input, it sits a level lower than this, directly in the input code, so it might turn out there are some issues that arise when trying to go a level higher. I'd suggest you try porting a Half-Life TAS first since the tools are much more mature. I can port some small TASes I made to Linux Half-Life (as I said above simply launching the Windows version leads to small desyncs) and then export it into final button inputs (this functionality is already implemented). I will also be able to help diagnose potential desyncs, and it will be easier than in Source, too, since Source is much more complicated and doesn't have debug symbols avaliable. EDIT: oh yeah, another point against porting the Portal TASes: since the Source physics have some very strange inconsistencies, certain scripts were needed to be run multiple times until the outcome was good, and also some segments were recorded manually as if in a segmented speedrun, to ease up proper prop positioning where there was no time constraint.
Pushing Half-Life to its limits.
Posted: 8/9/2019 4:06 PM
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keylie
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Editor, Emulator Coder, Expert player (2844)
Joined: 3/17/2013
Posts: 392
SNES TAS of 2023 PC TASer of 2020 PC TAS of 2020 TASer of 2019 PC TASer of 2019 First edition TAS of 2019 PC TAS of 2019 TASer of 2018 PC TASer of 2018 First edition TAS of 2015 First edition TAS of 2014 Computer TAS of 2013
Small update about Half-Life: I could launch it successfully on libTAS from commit 30d20e4. Required settings are: - Runtime > Force locale > Native, and also uncommenting "en_US.UTF-8 UTF-8" in /etc/locale.gen and running locale-gen as su to avoid a popup message at startup - Uncheck Runtime > Prevent writing to disk as it crashes on level loading - Runtime > Wait timeout > Infinite waits - Runtime > Virtual Steam client
Posted: 8/10/2019 12:03 AM
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InfamousKnight
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Joined: 9/12/2014
Posts: 541
Location: Waterford, MI
Nice! Theres some interesting mods for this game I wanted to tas!
Posted: 8/22/2019 5:29 AM
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YaLTeR
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Joined: 12/2/2011
Posts: 129
Location: Moscow, Russia
keylie wrote:
- Uncheck Runtime > Prevent writing to disk as it crashes on level loading
Yeah, afaik HL1 writes and reads files on every map change. The files should contain, among other things, the state of all previously visited maps. I'm not sure if that state is saved anywhere in memory so it might be desirable to save those files in savestates.
Pushing Half-Life to its limits.
Posted: 10/17/2021 9:27 PM
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nocash4u
She/Her
Joined: 2/18/2012
Posts: 37
Location: Brazil
Would love to check this out.
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