Playing Portal Demo File in Scratch

Project: scratch.mit.edu/projects/9045...

[@DUDA-__-]

Thank you KZbin for guiding me to a guy that apparently wrote a 2d demo parser in fricking scratch.

[@SandwichGamesHeavy]

True

[@tefhypr.2]

ye like what the fuck

[@idontfuckinknowdude]

we aren't in scratch comments you can say "fuck"

[@arubberroomwithrats]

*fucking

[@zelda_smile]

"We recreated the entire portal 1 engine in scratch"

[@FOXY_ANIMATIONS]

its probably can be true but will be very slow and considering all code from hl2 ,project itself will load really long time

[@looigi9447]

If I remember correctly someone made fully functional 3D recreation of chamber 13

[@pavlosrousiamanis]

And did it from scratch!

[@joedou7glas200]

i wonder if they can recreate the source by scratch

[@Dryashs]

some actually remade portal in scratch

[@Pwnz0rServer2009]

this being run in scratch and NOT turbowarp is the best part of this project

[@Chrome_Cat]

Fun fact, vanilla scratch can run about 3-6 million operations per second. I've never seen demo files before but if they're like 10,000 lines long you probably need less than a million ops to decode so it should take a fraction of a second on vanilla scratch.

[@Scratchfan321]

@@Chrome_Cat The chrome cat appears

[@thecatacombhimself]

in 2028 we will have functioning emulators in scratch

[@gamingx16071]

there alerdy are, but not for freaking Portal, but for NES or GameBoy

[@almessasorrow4950]

​@@gamingx16071in that case we'll have it by 2026..... even if I need to make it myself

[@idontfuckinknowdude]

The Gameboy has been made. gb.sb2 is its name.

[@thecatacombhimself]

@@idontfuckinknowdude Oh god no

[@zeektm1762]

Someone ran linux on scratch it is entirely possible

[@TheRealCakelover4578]

gotta love that "Activate Portal" watermark

[@SPARTonScratch]

As a Scratch KZbinr, I think that this is very very impressive!

[@hiirets2413]

LOL

[@LukeMaster12-ITA]

Time to watch the INTERLOPER demos on Scratch!

[@Ysychodelic]

YEAHHHHH

[@monkey_boss_1621]

most sane scratch user

[@Scratchfan321]

hey

[@sarahspeedrun6419]

Wait wtf I was promised free robux

[@MIOG_MIOG]

Not using uBlock Origin or KZbin ReVanced skill issue

[@Ysychodelic]

@@MIOG_MIOG what are you saying

[@xeonicSR]

4104 in scratch when?

[@fishypugbruh]

I have a feeling that the Interloper ARG will bring more attention to Source demo files.

[@meemee1357]

This is really cool. It's always great seeing a stupid idea come into reality. Also, thanks for the link to the demo format documentation on the scratch page. I've been writing a demo parser for tf2 without much to go off of for the packet messages, reverting to reverse engineering, so its nice to have some actual documentation for it.

[@littlebunny06]

This was shared to me in a Scratch community. Wonderful stuff ahaha

[@CrossfireCam-Aus]

This is just insane to see... Great job

[@the98goober]

wonderful spectacular delightful grand incredulous

[@1980woodpixie]

This is insane. Bravo.

[@jamesbryan287]

Funniest and most impressive dang thing I've seen yet, incredible work. Would thus work with tf2, halflife 2 demos?

[@a_dogg5277]

based ina fan

[@cudeyt8185]

THAT'S INSANE!

[@scottrastyles2592]

The music is so nice

[@shroomwastaken]

insanely based

[@Awesomium3]

people are going to do anything to make something funny alive. nice job, btw 100th comment

[@scrummbumpulus9011]

new interloper lore

[@mercer6323]

I literally said "fuck off" aloud in disbelief.

[@RoshiGaming]

based takodachi

[@quentebarchiveeoutrascoisa8036]

Finally a new softwere to try the interloper comando

[@cola98765]

Now do entire speedrun/TAS like this.

[@ezjestes_kidzie]

You are insane i like it

[@mikes128]

cool text editor!

[@ombrezz7030]

Damn that's impressive.

[@philiparnaudov9001]

I have no words

[@duongdong5850]

99% of Scratch users: Platformer, "Support the gays", games that made in 10 seconds but still get featured,... 1% of Scratch users:

[@Alternativebyte]

Holy moly thats sick lol

[@csaki01]

I just moused over the video and watching it in small, then I spotted the Ina background, hi.

[@minitajfun]

sooooo... 3d demo player when?

[@justNexi]

This is the dumbest thing I've seen in a while This is also the coolest thing I've seen in a while madlad

[@dogdillon2]

what the hell did i just stumble upon

[@kumys1974]

here we go!

[@MHPFan]

If you add raycasting here, you can visualize the movement of the camera.

[@Lolziee2]

not everything is raycasting in scratch anymore lol, that stuff is pretty outdated at this point. there are textured 3d engines in scratch now

[@subzerocatalyst]

quake demos in scratch next?

[@CobaltTS]

No clue what this is but its really cool

[@lewisbeith]

WOW. (nice bhopping)

[@AndevOG]

that's insane

[@christianhagen183]

the 3gas guys better do this in 3D next.

[@midi_feline]

"But can it run Portal?"

[@FurryKemo]

should've showed the Keys being Pressed in Scratch with the Mouse circle movement fr

[@SomeRandomPiggo]

This is brilliant lmao

[@Povilaz]

Very interesting!

[@ckosmic]

I love it

[@sonickidd127]

can we run interloper demos on it

[@mistercue]

can you run other source engine games' demo files using the same method?

[@Hlebuw3k]

I think you should activate your portal.

[@Scrap-qp1qr]

can you link the converters too?

[@tomitomislav8180]

That’s cool

[@danboy12342]

To those saying this is crazy, this is vanilla scratch, not even turbowarp. Scratch 3.0 allowed from some crazy shit because its basically just a shity JS Framework now

[@fake-lavash]

Lmao, awesome :0

[@user-wc7dh4vl3r]

Make multiple demo options (like 1 for a regular playthrough)

[@woodybob01]

bro is playing portal IN SCRATCH

[@LegitChemist]

i wonder if interloper demos work

[@emanwonkon2205]

So you mean this works with tf2 demos, doom demos, and any game demo aswell?!

[@Luted09]

Not doom demos as that uses a different engine, but is still possible as doom demo files are basically just recorded inputs played back

[@utfigyii5987]

@@Luted09 Doom engine, quake engine and the source engine share a lot of code. With a bit of tweaking it could play doom demos back as well (in theory)

[@randomcatdude]

@@utfigyii5987 bruh doom demos and source demos are completely different and would require separate implementations

[@baseddoggie]

@@utfigyii5987 Doom is basically a top down shooter with clever tricks to make it look 3D. Its essentially a 2D game. Quake and later games on the other hand uses a completely different method of processing the game map. There is no way in hell a Doom demo looks anything like a source one

[@Pwnz0rServer2009]

cool but we need the python script to use the scratch project

[@cvabds]

I bet you cant do it in temple OS, if you do that i will subscribed

[@evanlin96069]

That’s an interesting idea. Not sure how hard it is to read 32-bit float since HolyC only has f64.

[@fighter2499]

Cool!

[@puraasu]

What do you use to get the fancy coloured directories in powershell?

[@evanlin96069]

oh-my-posh

[@puraasu]

@@evanlin96069 Thank you

[@hhhpestock951]

Dude if only you had like a firstperson rendering engine for like the wireframes or something

[@ashuratheglitchhog]

Now do a tf2 demo file (or I suppose any other multiplayer source game that supports demos)

[@haniif190]

HOLY SH-

[@serenarslan81]

use the interloper demo now

[@dannadx3840]

Does it load the top-down preview automatically or just parses the player movement?

[@evanlin96069]

It just parse the player positions and angles. The top-down view is just an image.

[@AlexTheBird1]

petition to replace untitledparser with scratchparser

[@bamb6097]

lol what also in fact, I actually use Scratch, in fact, I have an account on it too

[@sandwich2473]

goodness me

[@lelordiii8702]

cool

[@HolySpaceMan]

what is this beautiful song?

[@evanlin96069]

Portal soundtrack “Subject Name Here”

[@PecositoYT]

How long until the entirety of Half-Life 2 gets imported into Scratch?

[@GyddySand1337]

interlope command in a scratch engine: in cs: scratch an more :)

[@malcolmkoharian]

what my unemployed friend does at 2am

[@SASTSimon]

Wow

[@capivaraMaster214]

portal minimap in scratch

[@Pawlo370]

lol nice

[@onceuponatimeonearth]

'Obligatory Minecraft next comment'

[@LgiidOakLeaves]

Funny

[@overseasinterp]

is this possible with tf2 demos?

[@johannesviljoen9656]

is it just me or does glados sound different?

[@evanlin96069]

Yes. The video is slow down by x0.9 because Scratch runs in 60 fps while the game tickrate is 66.6667 and I’m too lazy to properly convert it.

[@filval387]

@@evanlin96069 Wait, Portal runs at 66.6667 fps? Really? That seems like an odd thing to do...

[@evanlin96069]

@@filval387 tickrate, not fps. Here’s an explanation between two of them kzbin.info/www/bejne/oWSsd5WemrSDi5I

[@filval387]

@@evanlin96069 Ah, I see... Still seems like a weird number for the tickrate but it makes more sense...

[@AllisimaProductions]

@@filval387 It should feel less weird once you think of it as "one tick occurs every 15 milliseconds", instead of "66.666... ticks occur in a second"

[@saraysxroom]

use the turbowarp lol

[@girres43]

But can it play doom.... demo files?

[@windycitadels]

ok that's cool and all but HOW ON EARTH DO YOU HAVE ZSH IN WINDOWS???

[@windycitadels]

i see by the output that the shell you're running is pwsh. lit shell

[@Karl_Sniper322]

what song is this?

[@evanlin96069]

Portal soundtrack “Subject Name Here”

[@real_quandie]

i thought youre gonna literally play demo in scratch from first person

[@BotYoutubevertification]

Who is that lady in your wallpaper and why is the world so realistic but the lady isn't?

[@sanic5662]

The lady is Ninomae Ina'nis if you curious

[@BotYoutubevertification]

@@sanic5662 Who's that

[@sanic5662]

um. A KZbinr. The wallpaper in the video is one of her stream ending arts.

[@Dgubz11]

HOW

[@doggosuki]

i have no idea what a parser is so i cant fully appreciate the video, but cool edit: also nice ina pfp and background 🧐

[@r_olawg]

yeah sure, why the fuck not just put THE PORTAL DEMO IN SCRATCH

[@CGK3001]

I...

[@LandonEmma]

Ok so confused like what the sigma

[@xanderplayz3446]

Essentially: The Source Engine is a game engine that powered many games, like Portal, TF2, Half-Life 2, you get the idea. Essentially, you can record “demos”, which is like a macro that plays back the recorded inputs in the demo file.

[@idkagoodhandle]

ina

[@fusionprotogen5765]

how the fuck

[@thisnameisbad3609]

hi i'd just like to ask *What the fuck?*

[@coolmanthecool603]

KZbin has CUSTOMIZABLE captions, DO NOT make your own, unless they look decent

[@nataliexists]

nah they're fine

[@xanderplayz3446]

No, are you serious? Did you know you need to turn them on? Seriously?

[@Pwnz0rServer2009]

they're not youtube captions, also most need it to be enabled, which some don't