eassy-tictactoe/lib/multiPlayer.js

Tic Tac Toe game api

'use strict';

const patterns = require('../constants/patterns');
const { diffArray, compareArray } = require('../utils/arrayUtils');
const { Isnumeric, noDuplicateMoves } = require('../utils/validateArray');

function play(playOneMoves, playTwoMoves) {
  let pattern = [];
  let winner = "";
  const IsnumberCheck = Isnumeric(playOneMoves.concat(playTwoMoves));
  const duplicateCheck = noDuplicateMoves(playOneMoves, playTwoMoves);
  if(IsnumberCheck && duplicateCheck) {
    for (pattern of patterns) {
      if(diffArray(pattern, playOneMoves).length === 3) {
        winner = "player one wins";
        break;
      }
      if(diffArray(pattern, playTwoMoves).length === 3) {
        winner = "player two wins";
        break;
      }
    }
    if(!winner) {
      if(playOneMoves.concat(playTwoMoves).length === 9) {
        winner = "draw";
      }
      else if(!winner && (playOneMoves.length === (playTwoMoves.length + 1))) {
        winner = "player two's turn";
      } else {
        winner = "player one's turn"
      }
    }
  } else {
    throw Error("Invalid entry");
  }
    return winner;
}

exports.multiplayer = function (playerOne, playerTwo) {
   return play(playerOne, playerTwo);
 }