Vue TicTacToe vol.2

var board = [
    ['', '', ''],
    ['', '', ''],
    ['', '', '']
]
var emptyBoard = [
    ['', '', ''],
    ['', '', ''],
    ['', '', '']
]
var isX = true
var gameOver = false

//play() ce biti mejn funkcija:
function play(i, j) {
    if (board[i][j] != '') {
        console.log('Ovo polje je vec zauzeto.')
    }
    else {

        if (isX) {
            board[i][j] = 'x'
        }
        else {
            board[i][j] = 'o'
        }

        gameOver = checkWinner(board)
        isX = switchTurn(isX)
        if(checkDraw(board)) {
            if(gameOver) {
                displayWinner(!isX)//ovde ide samo !isX jer
                //sam gore imao switchTurn(isX)
            }
            else {
            console.log('Neresno. Mozete otpoceti novu igru.')
        }
            resetGame()
        }
        else if(gameOver) {
            displayWinner(!isX)
            resetGame()
        }
        console.log(board)
    }
}

function displayWinner(isX) {
    isX ? console.log('Pobednik je takmicar X.') : console.log('Pobednik je takmicar O.')
}
function switchTurn(isX) {
    reversedX = !isX
    return reversedX
}
function checkWinner(board) {
    const results = [
        checkRow(board, 0),
        checkRow(board, 1),
        checkRow(board, 2),
        checkColumn(board, 0),
        checkColumn(board, 1),
        checkColumn(board, 2),
        checkMainDiagonal(board),
        checkOtherDiagonal(board)
    ]
    return results.some(result => result == true)
}
function checkRow(board, i) {
    gameOver = true
    return board[i][0] != '' && board[i][0] == board[i][1] && board[i][1] == board[i][2]
}
function checkColumn(board, i) {
    return board[0][i] != '' && board[0][i] == board[1][i] && board[1][i] == board[2][i]
}
function checkMainDiagonal(board) {
    gameOver = true
    return board[0][0] != '' && board[0][0] == board[1][1] && board[1][1] == board[2][2]
}
function checkOtherDiagonal(board) {
    gameOver = true
    return board[0][2] != '' && board[0][2] == board[1][1] && board[1][1] == board[2][0]
}
//ova nije cista
function resetGame() {
  this.board = emptyBoard
  this.gameOver = false
  this.isX = true
}

function checkDraw(board) {
      var freeCells = numOfFreeCells(board)
      return freeCells == 0
    }

function numOfFreeCells(board) {
    var numOfFreeCells = 0
    board.forEach((row, i) => {
        row.forEach((cell, j) => {
          if (cell == '') {
            numOfFreeCells++
        }
        })
      })
      return numOfFreeCells
}
// function transposeMatrix(matrix) {
//   var result = new Array(matrix[0].length)
//   for(var i = 0; i < result.length; i++) {
//       result[i] = new Array(matrix[0].length)
//       for(var j = 0; j < result[i].length; j++) {
//           result[i][j] = matrix[j][i]
//       }
//   }
//   return result
// }