project-braingames-simply/dist/games/calcGame.js

brain-games project

'use strict';

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

var _ = require('..');

var gameDescription = 'What is the result of the expression?';

var expressionType = ['add', 'substract', 'multiply'];
var expressionTypeLength = expressionType.length - 1;

var add = function add(a, b) {
  return a + b;
};
var substract = function substract(a, b) {
  return a - b;
};
var multiply = function multiply(a, b) {
  return a * b;
};

var getExpression = function getExpression(typeNumber, a, b) {
  var expResult = '';
  switch (typeNumber) {
    case 0:
      expResult = a + ' + ' + b;
      break;
    case 1:
      expResult = a + ' - ' + b;
      break;
    case 2:
      expResult = a + ' * ' + b;
      break;
    default:
      break;
  }
  return expResult;
};

var getExpressionResult = function getExpressionResult(expression) {
  var expList = expression.split(' ');
  var a = Number(expList[0]);
  var b = Number(expList[2]);
  var exp = expList[1];
  var result = void 0;
  switch (exp) {
    case '+':
      result = add(a, b);
      break;
    case '-':
      result = substract(a, b);
      break;
    case '*':
      result = multiply(a, b);
      break;
    default:
      break;
  }
  return result;
};

var gameQuestion = function gameQuestion(getRandom) {
  var a = getRandom();
  var b = getRandom();
  var expType = getRandom(0, expressionTypeLength);
  return getExpression(expType, a, b);
};

var gameAnswer = function gameAnswer(questionData) {
  return getExpressionResult(questionData);
};

var getGameData = function getGameData() {
  return (0, _.makeGameData)(gameQuestion, gameAnswer);
};

var calcGame = function calcGame() {
  return (0, _.runGame)(getGameData, gameDescription);
};

exports.default = calcGame;
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