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enhance(server): tweak identicon generation

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This commit is contained in:
syuilo 2022-07-09 13:22:35 +09:00
parent 6f4749eaa7
commit da51152662
1 changed files with 29 additions and 20 deletions
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49
packages/backend/src/misc/gen-identicon.ts
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@ -7,28 +7,31 @@ import { WriteStream } from 'node:fs';
import * as p from 'pureimage';
import gen from 'random-seed';
const size = 256; // px
const size = 128; // px
const n = 5; // resolution
const margin = (size / n);
const margin = (size / 4);
const colors = [
'#e57373',
'#F06292',
'#BA68C8',
'#9575CD',
'#7986CB',
'#64B5F6',
'#4FC3F7',
'#4DD0E1',
'#4DB6AC',
'#81C784',
'#8BC34A',
'#AFB42B',
'#F57F17',
'#FF5722',
'#795548',
'#455A64',
['#FF512F', '#DD2476'],
['#FF61D2', '#FE9090'],
['#72FFB6', '#10D164'],
['#FD8451', '#FFBD6F'],
['#305170', '#6DFC6B'],
['#00C0FF', '#4218B8'],
['#009245', '#FCEE21'],
['#0100EC', '#FB36F4'],
['#FDABDD', '#374A5A'],
['#38A2D7', '#561139'],
['#121C84', '#8278DA'],
['#5761B2', '#1FC5A8'],
['#FFDB01', '#0E197D'],
['#FF3E9D', '#0E1F40'],
['#766eff', '#00d4ff'],
['#9bff6e', '#00d4ff'],
['#ff6e94', '#00d4ff'],
['#ffa96e', '#00d4ff'],
['#ffa96e', '#ff009d'],
['#ffdd6e', '#ff009d'],
];
const bg = '#e9e9e9';
const actualSize = size - (margin * 2);
const cellSize = actualSize / n;
@ -42,11 +45,17 @@ export function genIdenticon(seed: string, stream: WriteStream): Promise<void> {
const canvas = p.make(size, size, undefined);
const ctx = canvas.getContext('2d');
const bgColors = colors[rand(colors.length)];
const bg = ctx.createLinearGradient(0, 0, size, size);
bg.addColorStop(0, bgColors[0]);
bg.addColorStop(1, bgColors[1]);
ctx.fillStyle = bg;
ctx.beginPath();
ctx.fillRect(0, 0, size, size);
ctx.fillStyle = colors[rand(colors.length)];
ctx.fillStyle = '#ffffff';
// side bitmap (filled by false)
const side: boolean[][] = new Array(sideN);