Port of IVAN 0.50 to WebAssembly

May 4, 8:29 pm
#1
Joined: Sep 8, 2010
Occupation: Petty Functionary
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You can play vanilla IVAN in your browser

I guess this is what I was really intending to do before I got side-tracked with the CVS-to-git thing.

The source repository is here: https://github.com/Attnam/ivan-050-wasm

Have fun!
Batman? wrote
its been so long since i had gotten that far i didnt think it through. arrrr!!!!!!
May 5, 12:44 am
#2
Joined: Apr 2, 2014
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Location: Aslona
Posts: 746
That's so great!
May 5, 1:19 am
#3
Joined: Dec 3, 2007
Occupation: Chaos Weaver
Location: Standing between all life and death
Posts: 2,875
Awesome
Uchuudonge wrote
creating stable chaos
making patterns where there should be none
sewing order into the chaos
you spit in the face of random numbers, of chaos
May 7, 11:34 pm
#4
Joined: Dec 2, 2007
Location: New Attnam
Interests: bananas
Posts: 2,276
Sweet! The 'g'o command doesn't seem to work for me in Firefox
May 8, 11:33 pm
#5
Joined: Sep 8, 2010
Occupation: Petty Functionary
Location: Drinking pea soup in the world map
Interests: Mangoes
Posts: 1,209
capristo wrote
Sweet! The 'g'o command doesn't seem to work for me in Firefox

Hmm, works for me on Firefox, though I'm on Windows. You're on MacOS right? Could be an emscripten bug.

There are still a few little unported things, such as the fullscreen option.

You can also upload files to the browser's IDBFS database file system, although IVAN-wasm won't load savefiles from the original build of vanilla IVAN. I think this is because it was compiled so long ago with an older generation compiler, some of the data types might be assumed to be of a different size (in bytes). When these old data types are read into IVAN-wasm, there must be some sort of numerical under/overflow. I think it would take some serious CS expertise to patch it up.

There's also all the old bugs... 0.o All the same, it's progress towards porting Attnam/ivan to the web.

I think one of the potential possibilities would be to run this on node.js, and then the server could verify a playthrough and maintain a global scoreboard of "legit" hi-scores.
Batman? wrote
its been so long since i had gotten that far i didnt think it through. arrrr!!!!!!
May 9, 1:02 pm
#6
Joined: Dec 2, 2007
Location: New Attnam
Interests: bananas
Posts: 2,276
I was actually testing that on Windows, but the same thing happens in Firefox for macos.

Actually it works with my arrow keys, but not the numpad (tried with num lock both on and off)
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