88 lines
2.4 KiB
JavaScript
88 lines
2.4 KiB
JavaScript
function getHashFromString(string) {
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let hash = 1;
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for (let i = 0; i < string.length; i++) {
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const codepoint = string.charCodeAt(i);
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hash *= codepoint;
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}
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return Math.abs(hash);
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}
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function digitsFromNumber(number) {
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const numberString = number.toString();
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let digits = [];
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for (let i = 0, len = numberString.length; i < len; i += 1) {
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digits.push(numberString.charAt(i));
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}
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return digits;
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}
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// function avatarFromString(string) {
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// const hash = getHashFromString(string);
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// const digits = digitsFromNumber(hash);
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// // eslint-disable-next-line
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// const sum = digits.reduce(function (total, number) {
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// return total + number;
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// });
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// const sumDigits = digitsFromNumber(sum);
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// const first = sumDigits[0];
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// const second = sumDigits[1];
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// let filename = '/avatars/';
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// // eslint-disable-next-line
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// if (first == 1 || first == 2) {
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// filename += '1' + second.toString();
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// // eslint-disable-next-line
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// } else if (first == 3 || first == 4) {
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// filename += '2' + second.toString();
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// // eslint-disable-next-line
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// } else if (first == 5 || first == 6) {
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// filename += '3' + second.toString();
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// // eslint-disable-next-line
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// } else if (first == 7 || first == 8) {
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// filename += '4' + second.toString();
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// } else {
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// filename += '5';
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// }
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// return filename + '.svg';
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// }
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function colorForString(str) {
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let hash = 0;
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for (let i = 0; i < str.length; i++) {
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// eslint-disable-next-line
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hash = str.charCodeAt(i) + ((hash << 5) - hash);
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}
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let colour = '#';
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for (let i = 0; i < 3; i++) {
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// eslint-disable-next-line
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let value = (hash >> (i * 8)) & 0xff;
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colour += ('00' + value.toString(16)).substr(-2);
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}
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return colour;
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}
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function messageBubbleColorForString(str) {
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let hash = 0;
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for (let i = 0; i < str.length; i++) {
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// eslint-disable-next-line
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hash = str.charCodeAt(i) + ((hash << 5) - hash);
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}
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let color = '#';
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for (let i = 0; i < 3; i++) {
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// eslint-disable-next-line
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let value = (hash >> (i * 8)) & 0xff;
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color += ('00' + value.toString(16)).substr(-2);
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}
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// Convert to RGBA
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let result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(color);
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let rgb = result ? {
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r: parseInt(result[1], 16),
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g: parseInt(result[2], 16),
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b: parseInt(result[3], 16),
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} : null;
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return 'rgba(' + rgb.r + ',' + rgb.g + ',' + rgb.b + ', 0.3)';
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} |