littelbit-brain-games/dist/games/progression.js

hexlet brain-games

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _hexletPairs = require('hexlet-pairs');

var _gameFlow = require('../gameFlow');

var _gameFlow2 = _interopRequireDefault(_gameFlow);

var _utils = require('../utils');

var _utils2 = _interopRequireDefault(_utils);

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

var lengthProgression = 10;

var makeProgression = function makeProgression(start, increment) {
  var progression = [];
  for (var i = 0; i < lengthProgression; i += 1) {
    progression.push(start + i * increment);
  }
  return progression;
};

var rule = 'What number is missing in this progression?';
var getGameData = function getGameData() {
  var start = (0, _utils2.default)(1, 10);
  var increment = (0, _utils2.default)(1, 10);
  var progression = makeProgression(start, increment);
  var indexRandom = (0, _utils2.default)(1, 8);
  var rightAnswer = progression[indexRandom];
  progression[indexRandom] = '..';
  var question = progression.join(' ');
  return (0, _hexletPairs.cons)(question, rightAnswer.toString());
};

exports.default = function () {
  return (0, _gameFlow2.default)(rule, getGameData);
};