script.js

const statusDisplay = document.querySelector('.game--status');
let gameActive = true;
let currentPlayer = "X";
let gameState = ["", "", "", "", "", "", "", "", ""]
const winningMessage = () => `💥${currentPlayer} IS THE WINNER💥`
const drawMessage = () => `🥱Game ended in a draw!🥱`;
const currentPlayerTurn = () => `It's ${currentPlayer}'s turn`;
statusDisplay.innerHTML = currentPlayerTurn();

// to update game state and UI
function handleCellPlayed(clickedCell, clickedCellIndex) {
    gameState[clickedCellIndex] = currentPlayer;
    clickedCell.innerHTML = currentPlayer;
    colorChange(clickedCell);
}

// to change color for each player
function colorChange(clickedCell) {
    if (currentPlayer == 'X') {
        clickedCell.style.color = "DarkRed";
    } else {
        clickedCell.style.color = "OliveDrab";
    }
}

function handlePlayerChange() {
    if (currentPlayer === "X") {
        currentPlayer = "O";
    } else {
        currentPlayer = "X";
    }
    statusDisplay.innerHTML = currentPlayerTurn();
}

//to check for the winning Condition
const winningConditions = [
    [0, 1, 2],
    [3, 4, 5],
    [6, 7, 8],
    [0, 3, 6],
    [1, 4, 7],
    [2, 5, 8],
    [0, 4, 8],
    [2, 4, 6]
];

function handleResultValidation() {
    let roundWon = false;
    for (let i = 0; i <= 7; i++) {
        const winCondition = winningConditions[i];
        let a = gameState[winCondition[0]];
        let b = gameState[winCondition[1]];
        let c = gameState[winCondition[2]];
        if (a === '' || b === '' || c === '') {
            continue;
        }
        if (a === b && b === c) {
            roundWon = true;
            break
        }
    }
    if (roundWon) {
        statusDisplay.innerHTML = winningMessage();
        gameActive = false;
        return;
    }

    // to checks for a draw
    let roundDraw = !gameState.includes("");
    console.log(roundDraw);
    if (roundDraw) {
        statusDisplay.innerHTML = drawMessage();
        gameActive = false;
        return;
    }
    handlePlayerChange();
}
//for checking clicked cells
function handleCellClick(clickedCellEvent) {

    const clickedCell = clickedCellEvent.target;

    const clickedCellIndex = parseInt(
        clickedCell.getAttribute('data-cell-index'));

    if (gameState[clickedCellIndex] !== "" || !gameActive) {
        return;
    }
    handleCellPlayed(clickedCell, clickedCellIndex);
    handleResultValidation();
}

function handleRestartGame() {

    gameActive = true;
    currentPlayer = "X";
    gameState = ["", "", "", "", "", "", "", "", ""];
    statusDisplay.innerHTML = currentPlayerTurn();
    document.querySelectorAll('.cell')
        .forEach(cell => cell.innerHTML = "");
}

document.querySelectorAll('.cell').forEach(cell => cell.addEventListener('click', handleCellClick));
document.querySelector('.game--restart').addEventListener('click', handleRestartGame);