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[rbdr/forum] / app / utils / glyph_hash.js
1 const internals = {
2 kSplitterRegex: /.{1,8}/g,
3 kGlyphs: [
4 "☽",
5 "☆",
6 "♢",
7 "♡",
8 "╱",
9 "╲",
10 "╳",
11 "〰",
12 "▷",
13 "⏊",
14 "〒",
15 "▢",
16 "◯",
17 "⏃",
18 "⏀",
19 "⏆"
20 ]
21 };
22
23 // Return a glyph with color based on a 4 byte fragment of a UUIDv4
24 const getGlyphHashFragment = function (uuidFragment) {
25
26 const glyphIndex = parseInt(uuidFragment.substring(0,2), 16) % 16;
27 return {
28 glyph: internals.kGlyphs[glyphIndex],
29 color: `#${uuidFragment.substring(2,8)}`
30 }
31 };
32
33 // Return an array of glyphs based on a UUIDv4
34 export const getGlyphHash = function (uuid) {
35
36 const hashFragments = uuid.match(internals.kSplitterRegex);
37 return hashFragments.map(getGlyphHashFragment);
38 };