uladzislau97-brain-games/dist/games/brain-calc.js

Set of console mini-games.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _gameEngine = _interopRequireDefault(require("./game-engine"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

const INCLUDED_MIN_RANDOM_NUMBER = 1;
const EXCLUDED_MAX_RANDOM_NUMBER = 101;
const INCLUDED_MIN_RANDOM_INDEX = 0;
const EXCLUDED_MAX_RANDOM_INDEX = 3;
const RADIX = 10;
const GAME_DESCRIPTION = 'What is the result of the expression?';
const arithmeticSigns = ['+', '-', '*'];
const arithmeticOperations = {
  '+': {
    perform: (firstNumber, secondNumber) => firstNumber + secondNumber
  },
  '-': {
    perform: (firstNumber, secondNumber) => firstNumber - secondNumber
  },
  '*': {
    perform: (firstNumber, secondNumber) => firstNumber * secondNumber
  }
};

const generateRandomNumber = (min, max) => Math.floor(Math.random() * (max - min) + min);

const generateRandomArithmeticSign = () => {
  const randomIndex = generateRandomNumber(INCLUDED_MIN_RANDOM_INDEX, EXCLUDED_MAX_RANDOM_INDEX);
  return arithmeticSigns[randomIndex];
};

const generateQuestion = () => {
  const firstNumber = generateRandomNumber(INCLUDED_MIN_RANDOM_NUMBER, EXCLUDED_MAX_RANDOM_NUMBER);
  const secondNumber = generateRandomNumber(INCLUDED_MIN_RANDOM_NUMBER, EXCLUDED_MAX_RANDOM_NUMBER);
  const sign = generateRandomArithmeticSign();
  return `${firstNumber} ${sign} ${secondNumber}`;
};

const getCorrectAnswer = question => {
  const [firstNumber, sign, secondNumber] = question.split(' ');
  return arithmeticOperations[sign].perform(parseInt(firstNumber, RADIX), parseInt(secondNumber, RADIX)).toString();
};

var _default = () => {
  (0, _gameEngine.default)(GAME_DESCRIPTION, generateQuestion, getCorrectAnswer);
};

exports.default = _default;
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