Thanks, I’ve pushed them to the git. Except for Via Nostalgica, because I’d like to first try to understand where this save of time is coming from.

On my end I optimized The escape and next I want to work on Stone cold.

Hum your upload failed somehow, the file is only 4 bytes. I think you tried uploading a folder and it did not work. Can you try either ziping the files together before uploading or uploading them one by one?

On my hand I have optimized Artic Ruins by hand modification and it’s now 47:78. (It was 52 in the record used by the TAS. My record with gamepad is 48:34)

I look forward to integrating you records and see how much seconds were saved total.

Anywhere I can download them, really ^^ You can use https://framadrop.org/ for instance.

Levels before 23rd airbourne are pretty good already except from Togble road. Starting from 23rd airbourne to the bridge, any level you can do better than the time on the video is good for me (appart from «living in the fridge»). For the path in the clouds, I expect going down is indeed faster, so if you could record what you did it would be great. Is it completely full speed ? And I think ultimately the TAS will also go down on «Ice in the hole», as climbing at the beginning is quite slow.

What you enter after --record-demo is the name of the file created, in my example it was «togble.record». So you should have a togble.record file in the folder the console opens. (I guess it should be your personal folder by default).

You can use the same command but with --play-demo to play a demo file. That allows you to check that the recording works. (You can also use this on files from the TAS if you want to play them: https://github.com/MCMic/supertux/tree/release/0.4/data/TAS/levels/world1 ) You always have to provide both the record file and the level file.

You need to use the windows console, in my time it was called cmd.exe, not sure if that is still the case. Then you need to find which command launch supertux, I’m expecting something like «supertux», «supertux.exe» or «supertux2.exe». Then you need to know where supertux stores its levels. It seems to be C:\Program Files\SuperTux.

So it should look like : supertux2.exe --record-demo togble.record "C:\Program Files\SuperTux\levels\world1\04 - Tobgle Road.stl"

I made a lot of guesses here so it might not work, please tell me what part fails and with what problem if any.

Yeah it’s my console you see at the beginning of the video, not the one of supertux. There is one in supertux if you launch the developper mode, but’s not that usefull. You can get a big tux or display the hitboxes, stuff like that.

@Dugglez No, not the whole level is down one block, you can see he hit a coin block and it works, and ennemies are still walking on the floor. For me it’s the hit box of the small tux which is used but the big one which is displayed after the glitch.

Yeah, and it means glitches in supertux are not impossible, there maybe someway to like get out of bounds to skip part of levels or something.

It’s weird, I got a notification saying namesnipes posted in this thread 6 hours ago but the post is not there…

@namesnipes : would you be able to record what you did on togble road for the TAS?

For Via nostalgica current TAS record is 35:54 and you got 35:53 but you said in the comment you don’t know why. Maybe the TAS loses a few frames on the first jump, not sure…

[EDIT] Oh and I think I will steal your strat on Via nostalgica for the two bouncing snowballs, going above seems safer than going bellow like I do.

Hello, namesnipes found a glitch and posted about it in the guides: http://www.speedrun.com/st/guide/afj1z

@namesnipes : Can you still crouch once you are in this weird state? What happens if you crouch bellow a pipe or an enemy or if get hit while crouched/crouching?

Not sure in which level this glitch could save time anyway because it implies to first take an egg. But it’s still the first glitch I see in supertux :-)

Yes, I finally was able to reproduce the same technique I discovered while doing the TAS :-) But it’s really hard to land on the second green cube. The jump above the last ennemy is easy once you get there, the hard part is before. I often try to do this as I know it’s possible and if you miss the second green cube you can always jump again you don’t die. This was the first time it worked. (As explained in the comment I was not trying to beat this level record I was going for a full run but I messed up the other levels)

Oh, Welcome to antartica is optimised as well, forgot to mention it. Never managed to do with the gamepad these final jumps allowing to finish it under 28 seconds ^^

Hello!

Since some time I’ve been working on a Tool Assisted Speedrun for supertux. I chose to use supertux ability to record and run «demos» for this. I did a modified version of the game which accepts an option «--play-tas», which takes as parameter a folder containing a record file for each level. A record file is a file containing the input for a specific level. You can create one by using «supertux2 --record-demo lvl26.record /usr/share/games/supertux2/levels/world1/26\ -\ The\ Castle\ of\ Nolok.stl» for instance for the castle. (This is under GNU/Linux but you can do that on any system once you figure out where levels are stored). You can use the same command with --play-demo to play a demo file.

So I did a record for each level, and a modified version of the game which plays all this in a full game run. It also output «split()» each time it enters a level and I use this for autosplitting.

Here is a video of the first working version, and it beats the game in 17:49.6 already!

• Grumbels sense of snow
• Living in a fridge
• Castle of Nolok
• No more mister ice guy (this one can probably be optimised but it’s hard as during a game run tux is big entering the level)

Note that at the beginning of living in a fridge kicking the icecubes may be losing a few frames, but it’s more fun and it’s the kind of frame perfect jump I like to put in a TAS.

So, you can find the TAS here: https://github.com/MCMic/supertux The record for individual levels are in data/TAS/levels/world1/. You can play them individually with a standard supertux2 0.4.0 by using --play-demo command. If you build the modified game you can use the --play-tas option on the whole folder.

So, now we need to create a perfect record file for each level. The idea is to start by recording a near-prefect run using the --record-demo option, and then if needed edit the record file by hand to make it perfect (you need a binary editor for this, and it take time. Format it blocks of 6 bytes representing the 4 directions and 2 action buttons). Note that some levels can be done fullspeed by gamepad and does not need any binary edition. We might want to focus on those first.

So, if you feel like helping, you can spot in the video a level which is badly optimised and record a better run for it. You can then send me the record file. (If you feel like binary editing it to make it perfect, do not hesitate, it’s fun too but it takes time)

Note: Sorry for the video having no sound, since last update my screenrecorder is behaving weirdly if I record sound as well.

Wow, so glad to see some new times by an unknown face namesnipes! Will you do a single-segment run as well?

Also, could you explain how you saved time on http://www.speedrun.com/st/The_journey_begins#Any_v0.4.0 ? You say the jump at the end does but I don’t see how. I wonder if did not hit some platform corner without seeing it at some point.

Thanks for the video :-)

For instance, I’d very much like to know how you beat the yeti this fast, and be able to check that it was as a small tux.

I prefer videos as they allow you to see how the run was acheived (i.e. which techniques were used)

I won’t let you dictate on which website I create an account or not, that’s my choice. I just checked and the webm from my yesterday run plays fine on my mobile. Just use a better browser if yours can’t even play a video. Firefox is available on most mobile OS. Or use your computer, pretty sure you don’t play supertux on your mobile phone anyway.

You needed to add a category for them, I added a Any% 0.4.0 one. You can add other ones if you want, like getting all secrets, or all coins, or all ennemies.

The rules should state that the level must be started with a small tux. (coins don’t matter much in this case as dying will be slow anyway)

Oh, yes, you can add level leaderboard. Use the english names of the levels, and I’d say we should use in-game time as it’s the easiest.

I don’t know what ILs are. I don’t have a youtube account so I won’t upload there. This last video is webm so phones should play it fine as well as modern web browsers.