o-nandemo (何でも) — "anything"
onandemo.js
oneko.js, but anything chases your cursor.
it's already chasing you. who's next:
drop-in
<script src="https://unpkg.com/onandemo/dist/onandemo.js"></script>
swap with data-preset="soldier" or
"slime" — the files ship inside the package.
npm
bun add onandemoimport { onandemo } from "onandemo";
const destroy = onandemo(); // the cat
onandemo({ sheet: "/dino.png", frameMap }); // anything- 01 try — summon the bundled three — they're loose on this desktop already.
- 02 make — no art skills? the recipe prompts your image model. have pixels? the playground slices anything.
- 03 mint — the playground turns your creature into a link. send it; whoever opens it gets chased. nothing uploads — the whole companion lives in the url.
- 04 immortalize — pr your companion into the package. it ships on npm, works as data-preset everywhere, and notice.md credits you.
a sheet is a grid of cells; a frame map names them. this is the actual cat — all 32 cells, mapped. hover around.
cell: hover a cell
| sheet + frameMap | — | your art and its map |
| preset | "neko" | bundled companion by name |
| speed | 10 | px per tick |
| restRadius | 48 | rest distance |
| scale | 1 | display multiplier |
| zIndex | 2147483647 | stacking |
| persist | true | remembers its spot |
- ■ bails out under prefers-reduced-motion — no element, no listeners.
- ■ never intercepts input; hidden from assistive tech.
- ■ the loop dies when the element leaves the DOM.
- ■ remembers where it was (persist: false opts out).
- ■ ten frames per second, always. the shuffle is the charm.
inherited from oneko, engine behavior rather than options. not configurable on purpose.