Tag: webdev
Thing 20: DriftKart Prototype
A prototype for a drifting mechanic in a racing video game. You need to plug in a game controller to be able to play. Using a GameCube Controller with an Adapter, the relevant buttons are A to drive and R to drift and the left stick to steer. Different controllers might have different button mappings. May only work on Chromium-based browsers.
Thing 17: Fake Constellation Generator
I made a random fake constellation generator. You can specify any string as a seed, a number of stars, a threshold for connections, and a method for connections. Out you get a constellation. I think (toilet, 35, 2.5, min) looks pretty cool. I also like (gggg, 75, 3, multiply), (bl, 64, 9, add), and (ohio, 51, 4, max). Play around; see what you can make.
Thing 16: Probability Converter
I made a converter between different ways of thinking about probabilities. It allows conversion between probabilities, odds, and log odds measured in bits, logits, and decibels. The ui is pretty terrible, sorry.
Thing 14: Spectrogram Player v2
Yesterday, I tried to make a spectrogram-player that plays a spectrogram. See thing 13 It was pretty bad. Today I tried a second approach I learned of after making the thing yesterday. This time I use white noise and bandpass filters. I think it's much better than yesterday's. Feel free to compare using the same images in both.
Thing 13: Spectrogram Player
I tried to make a spectrogram-player that plays a spectrogram. It's pretty bad. Below are two hand-drawn spectrograms you can download and upload to try it on. You can also upload any image, but if the image doesn't look like this, then your ears may bleed even more.
The way it does this is it makes a pure sine wave for each row in the image and alters the volume according to the brightness throughout. I learned after making this there are better ways of doing this such as using a noise source with band pass filters. Oh well. Also, no idea how well this would work on an actual spectrogram. Will just have to wait until I make a spectrogram-maker I guess.
Thing 12: Blood Type Calculator: Better Rh Inference
Continuation of thing 9.
Better rh factor inference. It can now infer e.g. that if a child is rh positive, and one parent is rh negative, the other parent must be rh positive.
| # | Name | Parent1's Name | Parent2's Name | ABO | Rh | Actions |
|---|---|---|---|---|---|---|
| No rows yet. | ||||||
Thing 9: Blood Type Calculator
I made a blood type calculator that deduces what some family members' blood types must be given the blood types of other people in the family. It's not perfect at inferring all possible information yet, but it can infer some interesting things.
Put in some family members whose blood types you know, and see if it can correctly deduce someone's blood type! The more family members you add (including grandparents and cousins, etc.), the more likely it will be to narrow it down more.
For example, try adding in Alice with blood type A and Bob with blood type B and give them a kid. See how the kid could still be any blood type. Now give Alice and Bob each two parents with blood types AB. Now the kid can only be blood type AB.
Future improvements I want to make: (1) infer that if one parent is rh negative and the child is rh positive, the other parent must be rh positive, (2) output probabilities based on bayesian reasoning, instead of just which ones are possible.
Disclaimer: the UI was partially written by an LLM, but the main focus of this post was on the logic of the calculation, which was entirely written by me.
| # | Name | Parent1's Name | Parent2's Name | ABO | Rh | Actions |
|---|---|---|---|---|---|---|
| No rows yet. | ||||||
Thing 5: Make Your Own Smiley
It's a simple make-your-own-smiley toy.
Blush:
Sweat:
Thing 3: Pico Player
I made a reusable modular React component for playing PICO-8 games (@athingperday/react-pico-player). Here's an example of it being used to play yesterday's puzzle:
Thing 1: athingper.day Website
Hi! I'm athingperday and I will post one thing every day. Could be something big. Could be something small. But every day will be something. Today's thing is that I made a website (athingper.day) to hold all my things.