cinny/src/util/colorMXID.js
2021-07-28 18:45:52 +05:30

23 lines
642 B
JavaScript

// https://github.com/cloudrac3r/cadencegq/blob/master/pug/mxid.pug
const colors = ['#368bd6', '#ac3ba8', '#03b381', '#e64f7a', '#ff812d', '#2dc2c5', '#5c56f5', '#74d12c'];
function hashCode(str) {
let hash = 0;
let i;
let chr;
if (str.length === 0) {
return hash;
}
for (i = 0; i < str.length; i += 1) {
chr = str.charCodeAt(i);
// eslint-disable-next-line no-bitwise
hash = ((hash << 5) - hash) + chr;
// eslint-disable-next-line no-bitwise
hash |= 0;
}
return Math.abs(hash);
}
export default function colorMXID(userId) {
const colorNumber = hashCode(userId) % 8;
return colors[colorNumber];
}