Snake in a QR Code • Hacker News Board

Re: Snake in a QR Code

#21

Post by geofft » Fri, Sep 04, 2020, 2:47 PM UTC

codetrotter wrote: post #15

antihero wrote: post #11

Earlier quoted context omitted.

Could you plausibly make it a URL where the code in the URL is assembled and run using webassembly?

The point is to not rely on a server to host anything though. That the QR contains the data itself, not just a URL pointing to the data. Otherwise it is no different from any other QR code that has a URL in it.

The suggestion, I think, is to put the code in the URL itself, not use the URL as a pointer.

You could probably use a data: URL to avoid needing a server at all, but if not, the server would just provide a launcher and not host the application code.

Re: Snake in a QR Code

#22

Post by codetrotter » Fri, Sep 04, 2020, 2:48 PM UTC

geofft wrote: post #21

codetrotter wrote: post #15

Earlier quoted context omitted.

The point is to not rely on a server to host anything though. That the QR contains the data itself, not just a URL pointing to the data. Otherwise it is no different from any other QR code that has a URL in it.

The suggestion, I think, is to put the code in the URL itself, not use the URL as a pointer. You could probably use a data: URL to avoid needing a server at all, but if not, the server would just provide a launcher and not host the application code.

If the binary data is too big to fit in QR, then URL encoding is only going to require more bytes, and it will not fit either.

Re: Snake in a QR Code

#23

Post by athorax » Fri, Sep 04, 2020, 2:51 PM UTC

inlined wrote: post #14

Am I the only one unwilling to run a non-sandboxed process I found on a tech demo?

especially with the included disclaimer

  ...slightly larger than the executable shown in the video because I decided to add a little more functionality

Re: Snake in a QR Code

#24

Post by kevincox » Fri, Sep 04, 2020, 3:17 PM UTC

I wish more QR-scanners supported data URLs. I think it would be very cool to distribute tiny web-apps via QR code.

Re: Snake in a QR Code

#25

Post by butz » Fri, Sep 04, 2020, 3:23 PM UTC

rob74 wrote: post #8

Cool, so all the 1k demos/intros from Assembly ( https://archive.assembly.org/2019/1k-intro ) could also be distributed via QR code... the 4k intros unfortunately not. Maybe it's time for a new category ;)

Or bigger QR codes.

Re: Snake in a QR Code

#26

Post by fiatjaf » Fri, Sep 04, 2020, 3:24 PM UTC

I'm still waiting for someone to make an app that encodes and decodes large data into multiple QR codes that are displayed in a moving sequence.

That would be the best way to transfer files in physical locations.

Re: Snake in a QR Code

#27

Post by agumonkey » Fri, Sep 04, 2020, 3:24 PM UTC

a new vector emerges

Re: Snake in a QR Code

#28

Post by gitgud » Fri, Sep 04, 2020, 3:26 PM UTC

I wonder if snake could fit in a data uri, like this:

https://bytex64.net/code/datasnake/

Re: Snake in a QR Code

#29

Post by z3t4 » Fri, Sep 04, 2020, 3:28 PM UTC

fyfy18 wrote: post #3

bovermyer wrote: post #2

Might be interesting to print this on business cards and distribute at conventions or something like that.

"Please run this binary from my business card". I guess it's easier than leaving USB drives in the parking lot...

You could run it in a VM.

Re: Snake in a QR Code

#30

Post by toyg » Fri, Sep 04, 2020, 3:29 PM UTC

kevincox wrote: post #24

I wish more QR-scanners supported data URLs. I think it would be very cool to distribute tiny web-apps via QR code.

Yeah, let’s make it even easier for people to run random executables that cannot be vetted, preferably on devices tightly coupled to their identities. What could go wrong?