chaos/scripts/utils.js

'use strict';

/**
 * Get a random whole number
 *
 * @param {number} min Minimal value for the number
 * @param {number} max Maximal value for the number (excluded)
 * @return {number} Random number
 */
export const randomNumber = (min, max) =>
	Math.floor(Math.random() * (max - min)) + min;

/**
 * Generate a random color
 *
 * @return {Array} RGB components
 */
export const randomColor = () => {
	const color = [];

	for (let i = 0; i < 3; i++) {
		color.push(Math.round((Math.random().toFixed(2)) * 255));
	}

	return color;
};

/**
 * Convert a decimal number to its hexadecimal representation
 *
 * @param {number} input Number to be converted
 * @return {string} Number representation
 */
const hex = input => {
    let hex = parseInt(input, 10).toString(16);
    return hex.length === 1 ? '0' + hex : hex;
};

/**
 * Convert a RGB color to its hexadecimal representation
 *
 * @param {Array} color RGB color
 * @return {string} Hex representation
 */
export const rgbToHex =
    color => '#' + hex(color[0]) + hex(color[1]) + hex(color[2]);