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21 lines
533 B
JavaScript
21 lines
533 B
JavaScript
import _ from 'lodash';
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/*
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Because the same op needs to be performed on the client and the server (critical hits, item drops, etc),
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we need things to be "random", but technically predictable so that they don't go out-of-sync
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*/
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module.exports = function(user, seed) {
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var x;
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if (!seed || seed === Math.PI) {
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seed = _.reduce(user.stats, (function(m, v) {
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if (_.isNumber(v)) {
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return m + v;
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} else {
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return m;
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}
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}), 0);
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}
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x = Math.sin(seed++) * 10000;
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return x - Math.floor(x);
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};
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