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use raw bitwise instead of buffers

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Vendicated 2024-08-02 13:56:23 +02:00
parent 2b1c0100bf
commit 7cdf3464a1
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1 changed files with 5 additions and 10 deletions
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15
src/plugins/ircColors/index.ts
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@ -21,14 +21,14 @@ import { Devs } from "@utils/constants";
import definePlugin, { OptionType } from "@utils/types"; import definePlugin, { OptionType } from "@utils/types";
// Compute a 64-bit FNV-1a hash of the passed data // Compute a 64-bit FNV-1a hash of the passed data
function hash(data: ArrayBuffer) { function hash(id: bigint) {
const fnvPrime = 1099511628211n; const fnvPrime = 1099511628211n;
const offsetBasis = 14695981039346656037n; const offsetBasis = 14695981039346656037n;
let result = offsetBasis; let result = offsetBasis;
for (const byte of new Uint8Array(data)) { for (let i = 7n; i >= 0n; i--) {
result ^= BigInt(byte); result ^= (id >> (8n * i)) & 0xffn;
result = (result * fnvPrime) % 2n**32n; result = (result * fnvPrime) % 2n ** 32n;
} }
return result; return result;
@ -36,12 +36,7 @@ function hash(data: ArrayBuffer) {
// Calculate a CSS color string based on the user ID // Calculate a CSS color string based on the user ID
function calculateNameColorForUser(id: bigint) { function calculateNameColorForUser(id: bigint) {
const idBuffer = new ArrayBuffer(8); const idHash = hash(id);
{
const idView = new DataView(idBuffer);
idView.setBigUint64(0, id);
}
const idHash = hash(idBuffer);
return `hsl(${idHash % 360n}, 100%, ${settings.store.lightness}%)`; return `hsl(${idHash % 360n}, 100%, ${settings.store.lightness}%)`;
} }