forked from arne/asdf-games
48 lines
963 B
JavaScript
48 lines
963 B
JavaScript
/**
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* Returns random integer between min and max
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* @param {number} min Minimum value
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* @param {number} max Maximum value
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* @returns {number} Random integer
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*/
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function rand(min, max) {
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return Math.floor(randf(min, max));
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}
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/**
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* Returns random float between min and max
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* @param {number} min Minimum value
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* @param {number} max Maximum value
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* @returns {number} Random value
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*/
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function randf(min, max) {
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if (max == null) {
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max = min || 1;
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min = 0;
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}
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return Math.random() * (max - min) + min;
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}
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/**
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* Returns random item from items array
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* @param {*[]} items Array of anything
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* @returns {any} Item from items array
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*/
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function randOneFrom(items) {
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return items[rand(items.length)];
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}
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/**
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* Returns true one out of max times
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* @param {number} [max=2] Maximum value
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* @returns {boolean} Outcome
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*/
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function randOneIn(max = 2) {
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return rand(0, max) === 0;
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}
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export default {
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rand,
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randf,
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randOneFrom,
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randOneIn
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}; |