Tic_tac_toe/index.html at main · ManiDeep1822/Tic_tac_toe · GitHub

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<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Tic-Tac-Toe Game</title>
    <!-- Load Tailwind CSS -->
    <script src="https://cdn.tailwindcss.com"></script>
    <script>
        tailwind.config = {
            theme: {
                extend: {
                    fontFamily: {
                        sans: ['Inter', 'sans-serif'],
                    },
                    colors: {
                        'primary-dark': '#0f172a', /* Slate 900 */
                        'secondary-teal': '#2dd4bf', /* Teal 400 */
                        'accent-red': '#f87171', /* Red 400 */
                        'accent-blue': '#60a5fa', /* Blue 400 */
                        'win-yellow': '#facc15', /* Amber 400 */
                    }
                }
            }
        }
    </script>
    <style>
        body {
            background-color: #1e293b;
            /* Slate 800 */
            color: #f8fafc;
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            padding: 20px;
            font-family: 'Inter', sans-serif;
        }

        /* Styling for the game grid */
        #game-board {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            grid-template-rows: repeat(3, 1fr);
            gap: 8px;
            width: 100%;
            max-width: 400px;
            /* Max size for a comfortable square board */
            aspect-ratio: 1 / 1;
            /* Ensures the board is always square */
        }

        .cell {
            background-color: #334155;
            /* Slate 700 */
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 3.5rem;
            /* Large font size for X/O */
            font-weight: bold;
            cursor: pointer;
            border-radius: 12px;
            transition: background-color 0.2s, transform 0.1s;
            user-select: none;
        }

        .cell:hover:not(.occupied) {
            background-color: #475569;
            /* Slate 600 on hover */
        }

        /* Specific colors for players */
        .player-x {
            color: #f87171;
            /* Accent Red */
        }

        .player-o {
            color: #60a5fa;
            /* Accent Blue */
        }

        /* Styling for the winning cells */
        .winning-cell {
            background-color: #facc15 !important;
            /* Win Yellow */
            transform: scale(1.05);
        }

        /* Button styling */
        #newGameBtn {
            padding: 0.75rem 1.5rem;
            border-radius: 9999px;
            font-weight: bold;
            text-transform: uppercase;
            transition: all 0.2s ease-in-out;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            background-color: #2dd4bf;
            /* Teal */
            color: #0f172a;
            /* Dark text */
        }

        #newGameBtn:hover {
            background-color: #14b8a6;
            /* Darker Teal */
            transform: translateY(-1px);
        }
    </style>
</head>

<body>

    <div
        class="w-full max-w-md p-6 sm:p-8 rounded-2xl shadow-2xl bg-gray-900 border-2 border-secondary-teal text-center">
        <h1 class="text-3xl font-extrabold mb-6 text-secondary-teal">Tic-Tac-Toe</h1>

        <!-- Game Status Display -->
        <div class="mb-6 h-8 flex justify-center items-center">
            <p id="status" class="text-xl font-semibold text-white">Player X's Turn</p>
        </div>

        <!-- Game Board -->
        <div id="game-board" class="mb-8 mx-auto">
            <div class="cell" data-index="0"></div>
            <div class="cell" data-index="1"></div>
            <div class="cell" data-index="2"></div>
            <div class="cell" data-index="3"></div>
            <div class="cell" data-index="4"></div>
            <div class="cell" data-index="5"></div>
            <div class="cell" data-index="6"></div>
            <div class="cell" data-index="7"></div>
            <div class="cell" data-index="8"></div>
        </div>

        <!-- New Game Button -->
        <button id="newGameBtn" class="w-full sm:w-auto">New Game</button>
    </div>

    <!-- Game Logic -->
    <script>
        // --- Game State Variables ---
        // Represents the 9 squares of the board: 0-8. Null means empty.
        let boardState = Array(9).fill(null);
        let currentPlayer = 'X';
        let isGameActive = true;

        // Winning combinations (indices of the board array)
        const winningConditions = [
            [0, 1, 2], [3, 4, 5], [6, 7, 8], // Rows
            [0, 3, 6], [1, 4, 7], [2, 5, 8], // Columns
            [0, 4, 8], [2, 4, 6]             // Diagonals
        ];

        // --- DOM Elements ---
        const statusDisplay = document.getElementById('status');
        const gameBoard = document.getElementById('game-board');
        const cells = document.querySelectorAll('.cell');
        const newGameBtn = document.getElementById('newGameBtn');

        // --- Core Functions ---

        /**
         * Updates the status message displayed to the user.
         * @param {string} message - The message to display.
         * @param {string} colorClass - Tailwind color class for the text.
         */
        const updateStatus = (message, colorClass = 'text-white') => {
            statusDisplay.textContent = message;
            statusDisplay.className = `text-xl font-semibold ${colorClass}`; // Reset and apply new class
        };

        /**
         * Handles a user click on a cell.
         * @param {object} event - The click event object.
         */
        const handleCellClick = (event) => {
            const clickedCell = event.target;
            const clickedCellIndex = parseInt(clickedCell.getAttribute('data-index'));

            // Ignore click if the cell is already occupied or if the game is over
            if (boardState[clickedCellIndex] !== null || !isGameActive) {
                return;
            }

            // 1. Update the game state (model)
            boardState[clickedCellIndex] = currentPlayer;

            // 2. Update the UI (view)
            clickedCell.textContent = currentPlayer;
            clickedCell.classList.add('occupied', `player-${currentPlayer.toLowerCase()}`);

            // 3. Check for Game End
            const result = checkWin();
            if (result.isWin) {
                handleWin(result.winningCombination);
                return;
            }

            // 4. Check for Draw
            if (!boardState.includes(null)) {
                handleDraw();
                return;
            }

            // 5. Continue Game: switch player
            switchPlayer();
        };

        /**
         * Switches the current player from X to O or vice-versa.
         */
        const switchPlayer = () => {
            currentPlayer = currentPlayer === 'X' ? 'O' : 'X';
            const colorClass = currentPlayer === 'X' ? 'text-accent-red' : 'text-accent-blue';
            updateStatus(`Player ${currentPlayer}'s Turn`, colorClass);
        };

        /**
         * Checks if the current board state results in a win.
         * @returns {{isWin: boolean, winningCombination: Array<number>|null}}
         */
        const checkWin = () => {
            for (let i = 0; i < winningConditions.length; i++) {
                const [a, b, c] = winningConditions[i];
                if (boardState[a] && boardState[a] === boardState[b] && boardState[a] === boardState[c]) {
                    // We have a winner!
                    return { isWin: true, winningCombination: [a, b, c] };
                }
            }
            return { isWin: false, winningCombination: null };
        };

        /**
         * Executes when a player wins.
         * @param {Array<number>} winningCombination - The indices of the winning cells.
         */
        const handleWin = (winningCombination) => {
            isGameActive = false;
            const colorClass = currentPlayer === 'X' ? 'text-accent-red' : 'text-accent-blue';
            updateStatus(`Player ${currentPlayer} Wins!`, colorClass);

            // Highlight the winning cells
            winningCombination.forEach(index => {
                cells[index].classList.add('winning-cell');
            });
        };

        /**
         * Executes when the game results in a draw.
         */
        const handleDraw = () => {
            isGameActive = false;
            updateStatus("It's a Draw!", 'text-win-yellow');
        };

        /**
         * Resets the entire game board and state.
         */
        const resetGame = () => {
            boardState = Array(9).fill(null);
            currentPlayer = 'X';
            isGameActive = true;

            // Reset UI
            cells.forEach(cell => {
                cell.textContent = '';
                cell.classList.remove('occupied', 'player-x', 'player-o', 'winning-cell');
            });

            // Reset Status
            updateStatus("Player X's Turn", 'text-accent-red');
        };

        // --- Event Listeners and Initialization ---

        // Add event listeners to all 9 cells
        cells.forEach(cell => {
            cell.addEventListener('click', handleCellClick);
        });

        // Add listener for the new game button
        newGameBtn.addEventListener('click', resetGame);

        // Initial setup
        updateStatus("Player X's Turn", 'text-accent-red');

    </script>

</body>

</html>