iiinova — where your digital self keeps evolving

Vanessa Freudenberg @codefrau.bsky.social · 04/04/2025

Prompts: aistudio.google.com/prompts/1uwR... The example app given in the first prompt: github.com/multisynq/mu...

Vanessa Freudenberg @codefrau.bsky.social · 04/04/2025

I spent an afternoon vibe-coding a multiplayer game with @multisynq.bsky.social and @threejs.org using Gemini Pro 2.5 – 100% AI coded, although I had to explain how to correct the errors. Zero server code, client-side multiplayer. Live and source on @codepen.io: codepen.io/codefrau/ful...

codepen.io

Multi-player 3D Asteroids using Three.js & Croquet vibe coded by Gemini

...

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Vanessa Freudenberg @codefrau.bsky.social · 03/04/2025

The docs are so pretty, OMG. Congrats!

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Vanessa Freudenberg @codefrau.bsky.social · 16/03/2025

You wouldn’t believe how long it took me to find my very obvious typo 🤦🏻‍♀️ The symptom was that the output looked red and white 🔴⚪️ when it was supposed to be rainbowey 🌈

$#version 300 es in ivec2 xyIdIx; // position in upper 16 bits, id and index in lower 16 bits uniform vec2 screenScale; // half width/height of screen uniform float spotSize; // size of spot uniform uint colorIdx; // start of spots in display table out vec3 v_color; // color of spot vec3 hue(float h) { h = mod(h, 1.0); float r = abs(h * 6.0 - 3.0) - 1.0; float g = 2.0 - abs(h * 6.0 - 2.0); float b = 2.0 - abs(h * 6.0 - 4.0); return clamp(vec3(r, g, b), 0.0, 1.0); } void main() { ivec2 pos = xyIdIx >> ivec2(16, 16); // sign extend 16 bits to 32 uint idx = uint(xyIdIx.y & 65536); // 16 bit index if (idx < colorIdx) { float fraction = float(idx) / float(colorIdx); // map to [0, 1) v_color = hue(float(idx) / float(colorIdx)); // color by table index } else { v_color = vec3(1.0); // default: white } gl_Position = vec4(vec2(pos) / screenScale, 0.0, 1.0); gl_PointSize = spotSize * 512.0 / max(screenScale.x, screenScale.y); }$

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Vanessa Freudenberg @codefrau.bsky.social · 12/03/2025

“in terms of program debugging difficulty the problem was a lulu.” — Ivan Sutherland (1963!), “Sketchpad,” pg. 76

$In concept the edge detection problem is trivial. In terms of program time for lines and circles the problem is a small fraction of the total computational load of the system, but in terms of program debugging difficulty the problem was a lulu. For example, the computation of the intersection of a circle with any of the edges of the scope is easy, but computation of the intersection of a circle with all four edges may result in as many as eight intersections, same pairs of which maybe identical, the scope corners. Now which of these intersections are actually to be used as starts of circle arcs?$

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Vanessa Freudenberg @codefrau.bsky.social · 06/03/2025

I figured out how to keep my fixed-aspect canvas centered but as-large-as-possible in pure CSS 🥳 (I didn’t want to use object-fit because it distorts JS event positions) Try it here (resize the window or turn your phone) codefrau.github.io/Smalltalk78/...

#canvas {
width: auto;
height: 100%;
}
@media (max-aspect-ratio: 4/3) {
#canvas {
width: 100%;
height: auto;
}
}

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Vanessa Freudenberg @codefrau.bsky.social · 25/02/2025

𝗖𝗼𝗱𝗲𝗳𝗿𝗮𝘂 𝘾𝙤𝙙𝙚𝙛𝙧𝙖𝙪 𝘊𝘰𝘥𝘦𝘧𝘳𝘢𝘶 CODEFRAU ᴄᴏᴅᴇꜰʀᴀᴜ ᶜᵒᵈᵉᶠʳᵃᵘ ℭ𝔬𝔡𝔢𝔣𝔯𝔞𝔲 𝕮𝖔𝖉𝖊𝖋𝖗𝖆𝖚 𝙲𝙾𝙳𝙴𝙵𝚁𝙰𝚄 ᑕOᗪEᖴᖇᗩᑌ 𝓒𝓞𝓓𝓔𝓕𝓡𝓐𝓤 🅒🅞🅓🅔🅕🅡🅐🅤 🅲🅾🅳🅴🅵🆁🅰🆄 ⒸⓄⒹⒺⒻⓇⒶⓊ 🄲🄾🄳🄴🄵🅁🄰🅄

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Vanessa Freudenberg @codefrau.bsky.social · 18/02/2025

In a way I like this best because it’s straightforward to explain: * No damage? Nice, shield doesn’t break * This attack breaks the shield? Okay, return the number of this attack * Otherwise, this attack does damage, and we look at the next attack I’ll admit that “straightforward” is … subjective 😇

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Vanessa Freudenberg @codefrau.bsky.social · 18/02/2025

Played a bit more – recursion is fun! 👸🏻🛡️ 🐢🐢🐢 🐢🐢 🐢 💃🏻 codepen.io/codefrau/pen...

findShieldBreak = (dmgs, shld, pos=0) =>
dmgs.length == 0 ? -1
: shld <= dmgs[0] ? pos
: findShieldBreak(dmgs.slice(1), shld - dmgs[0], pos + 1)

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Vanessa Freudenberg @codefrau.bsky.social · 17/02/2025

findShieldBreak = (dmgs, shld) => dmgs.findIndex(dmg => (shld -= dmg) < 0) 👸🏻🛡️🔥🔥🔥🐉 codepen.io/codefrau/pen...

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Vanessa Freudenberg @codefrau.bsky.social · 10/02/2025

Especially using single digit numbers to avoid having to tokenize was brilliant. It let us focus on the actual problem instead of incidental complexity

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Vanessa Freudenberg @codefrau.bsky.social · 10/02/2025

It’s not very readable, admittedly, even though it’s very succinct. But whittling it down to almost a one-liner was a fun exercise. Thank you for the prompt!

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Vanessa Freudenberg @codefrau.bsky.social · 10/02/2025

Okay now that I’ve seen all the other submissions I wonder if an actual interviewer would object to my use of `eval()`. Then again, the `splice(-2)` is neat to get the operands in the right order for sub/div. They should appreciate that

220

Vanessa Freudenberg @codefrau.bsky.social · 04/02/2025

It’s been a while, yes, but I’m still reading your letter every week. One of the few highlights right now 💜

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Vanessa Freudenberg @codefrau.bsky.social · 04/02/2025

It’s how you combine subexpressions in RPN (see en.m.wikipedia.org/wiki/Reverse...) Try this: evaluatePostfix('123*+123++*')

en.m.wikipedia.org

Reverse Polish notation - Wikipedia

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Vanessa Freudenberg @codefrau.bsky.social · 04/02/2025

Clever! But evaluatePostfix('123++') should be 6 🤓

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Vanessa Freudenberg @codefrau.bsky.social · 04/02/2025

That was fun! function evaluatePostfix(s) { let a = [] for (let c of s) a.push(isNaN(+c) ? eval(a.splice(-2).join(c)) : c); return a.pop() } My CodePen does the infix conversion first and evals at the end: codepen.io/codefrau/pen...

Screenshot of the codepen and its output

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Vanessa Freudenberg @codefrau.bsky.social · 28/01/2025

This is one of the many awesome projects you can play with at squeak.js.org/etoys/ which has the 2005 version of Etoys running on my virtual machine. It’s in the Project Gallery (3rd row, 3rd item)

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Vanessa Freudenberg @codefrau.bsky.social · 28/11/2024

Trying a new profile picture www.instagram.com/p/CvqRxdlPGsg/

Selfie of me smiling into the camera with asymmetric, purple hair, matching purple lipstick and glasses, in a navy summer dress with small flower ornaments, a golden necklace with a V pendant sitting on a bench in front of an ivy-covered wall

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Vanessa Freudenberg @codefrau.bsky.social · 14/11/2024

Thank you for this Award, and congrats to my co-authors! It’s been an incredible 10 years. Check out SqueakJS at squeak.js.org

squeak.js.org

SqueakJS by Vanessa Freudenberg

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