 <!DOCTYPE html>
<html>
<head>
  <title>Snake Game with Extras</title>
  <meta charset="UTF-8" />
  <style>
    html, body {
      height: 100%;
      margin: 0;
    }
    body {
      background: black;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      color: white;
      font-family: monospace;
      user-select: none;
    }
    #score, #highscore {
      font-size: 18px;
      margin: 4px 0;
    }
    canvas {
      border: 1px solid white;
      background: #000;
    }
    #gameover, #pauseMenu {
      display: none;
      margin-top: 20px;
      text-align: center;
    }
    #restartBtn, #pauseBtn, #resumeBtn {
      cursor: pointer;
      padding: 8px 14px;
      margin-top: 10px;
      font-weight: bold;
      background: white;
      border: none;
      color: black;
      font-family: monospace;
    }
    #restartBtn:hover, #pauseBtn:hover, #resumeBtn:hover {
      background: lightgray;
    }
    #touchControls {
      margin-top: 15px;
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 8px;
      max-width: 240px;
    }
    .touchBtn {
      background: white;
      color: black;
      border: none;
      font-size: 20px;
      font-weight: bold;
      width: 50px;
      height: 50px;
      border-radius: 6px;
      user-select: none;
    }
    .touchBtn:active {
      background: #ddd;
    }
  </style>
</head>
<body>

<div id="score">Score: 0</div>
<div id="highscore">High Score: 0</div>
<button id="pauseBtn">Pause</button>
<canvas width="400" height="400" id="game"></canvas>

<div id="pauseMenu">
  <div>Paused</div>
  <button id="resumeBtn">Resume</button>
</div>

<div id="gameover">
  <div>Game Over</div>
  <button id="restartBtn">Restart</button>
</div>

<!-- Touch Controls for Mobile -->
<div id="touchControls">
  <button class="touchBtn" data-dir="w">W</button>
  <button class="touchBtn" data-dir="a">A</button>
  <button class="touchBtn" data-dir="s">S</button>
  <button class="touchBtn" data-dir="d">D</button>
</div>

<script>
  // Setup canvas and context
  var canvas = document.getElementById('game');
  var context = canvas.getContext('2d');

  // UI elements
  var scoreEl = document.getElementById('score');
  var highScoreEl = document.getElementById('highscore');
  var gameOverEl = document.getElementById('gameover');
  var restartBtn = document.getElementById('restartBtn');
  var pauseBtn = document.getElementById('pauseBtn');
  var pauseMenu = document.getElementById('pauseMenu');
  var resumeBtn = document.getElementById('resumeBtn');
  var touchControls = document.getElementById('touchControls');

  var grid = 16;
  var count = 0;
  var score = 0;
  var highScore = localStorage.getItem('snakeHighScore') || 0;
  var isGameOver = false;
  var isPaused = false;

  highScoreEl.textContent = 'High Score: ' + highScore;

  var snake = {
    x: 160,
    y: 160,
    dx: grid,
    dy: 0,
    cells: [],
    maxCells: 4
  };

  var apple = {
    x: 320,
    y: 320
  };

  // Sounds (simple beep sounds using AudioContext)
  var AudioContext = window.AudioContext || window.webkitAudioContext;
  var audioCtx = new AudioContext();

  function playSound(freq, duration = 100) {
    var oscillator = audioCtx.createOscillator();
    var gainNode = audioCtx.createGain();

    oscillator.connect(gainNode);
    gainNode.connect(audioCtx.destination);

    oscillator.type = 'square';
    oscillator.frequency.value = freq;
    oscillator.start();

    gainNode.gain.setValueAtTime(0.1, audioCtx.currentTime);
    gainNode.gain.exponentialRampToValueAtTime(0.0001, audioCtx.currentTime + duration / 1000);

    oscillator.stop(audioCtx.currentTime + duration / 1000);
  }

  // Play eat apple sound
  function playEatSound() {
    playSound(880, 120);
  }

  // Play game over sound
  function playGameOverSound() {
    playSound(220, 300);
  }

  function getRandomInt(min, max) {
    return Math.floor(Math.random() * (max - min)) + min;
  }

  function resetGame() {
    isGameOver = false;
    isPaused = false;
    gameOverEl.style.display = 'none';
    pauseMenu.style.display = 'none';
    pauseBtn.style.display = 'inline-block';

    score = 0;
    scoreEl.textContent = 'Score: 0';

    snake.x = 160;
    snake.y = 160;
    snake.cells = [];
    snake.maxCells = 4;
    snake.dx = grid;
    snake.dy = 0;

    apple.x = getRandomInt(0, 25) * grid;
    apple.y = getRandomInt(0, 25) * grid;

    requestAnimationFrame(loop);
  }

  function updateHighScore() {
    if (score > highScore) {
      highScore = score;
      localStorage.setItem('snakeHighScore', highScore);
      highScoreEl.textContent = 'High Score: ' + highScore;
    }
  }

  function loop() {
    if (isGameOver || isPaused) return;

    requestAnimationFrame(loop);

    if (++count < 4) return;
    count = 0;

    context.clearRect(0, 0, canvas.width, canvas.height);

    snake.x += snake.dx;
    snake.y += snake.dy;

    if (snake.x < 0) snake.x = canvas.width - grid;
    else if (snake.x >= canvas.width) snake.x = 0;

    if (snake.y < 0) snake.y = canvas.height - grid;
    else if (snake.y >= canvas.height) snake.y = 0;

    snake.cells.unshift({x: snake.x, y: snake.y});

    if (snake.cells.length > snake.maxCells) snake.cells.pop();

    // draw apple
    context.fillStyle = 'red';
    context.fillRect(apple.x, apple.y, grid - 1, grid - 1);

    // draw snake
    context.fillStyle = 'green';
    snake.cells.forEach(function(cell, index) {
      context.fillRect(cell.x, cell.y, grid - 1, grid - 1);

      if (cell.x === apple.x && cell.y === apple.y) {
        snake.maxCells++;
        score++;
        scoreEl.textContent = 'Score: ' + score;
        playEatSound();

        apple.x = getRandomInt(0, 25) * grid;
        apple.y = getRandomInt(0, 25) * grid;
      }

      // Check collision with self
      for (var i = index + 1; i < snake.cells.length; i++) {
        if (cell.x === snake.cells[i].x && cell.y === snake.cells[i].y) {
          isGameOver = true;
          playGameOverSound();
          gameOverEl.style.display = 'block';
          pauseBtn.style.display = 'none';
          updateHighScore();
          break;
        }
      }
    });
  }

  // WASD keyboard controls
  document.addEventListener('keydown', function(e) {
    if (isGameOver || isPaused) return;
    var key = e.key.toLowerCase();
    if (key === 'a' && snake.dx === 0) {
      snake.dx = -grid;
      snake.dy = 0;
    } else if (key === 'w' && snake.dy === 0) {
      snake.dy = -grid;
      snake.dx = 0;
    } else if (key === 'd' && snake.dx === 0) {
      snake.dx = grid;
      snake.dy = 0;
    } else if (key === 's' && snake.dy === 0) {
      snake.dy = grid;
      snake.dx = 0;
    }
  });

  // Touch controls
  touchControls.querySelectorAll('.touchBtn').forEach(btn => {
    btn.addEventListener('touchstart', e => {
      e.preventDefault(); // prevent scrolling
      if (isGameOver || isPaused) return;

      var dir = btn.getAttribute('data-dir');
      if (dir === 'a' && snake.dx === 0) {
        snake.dx = -grid;
        snake.dy = 0;
      } else if (dir === 'w' && snake.dy === 0) {
        snake.dy = -grid;
        snake.dx = 0;
      } else if (dir === 'd' && snake.dx === 0) {
        snake.dx = grid;
        snake.dy = 0;
      } else if (dir === 's' && snake.dy === 0) {
        snake.dy = grid;
        snake.dx = 0;
      }
    });
  });

  // Pause button toggle
  pauseBtn.addEventListener('click', () => {
    if (isGameOver) return;
    isPaused = true;
    pauseMenu.style.display = 'block';
    pauseBtn.style.display = 'none';
  });

  // Resume button
  resumeBtn.addEventListener('click', () => {
    if (isGameOver) return;
    isPaused = false;
    pauseMenu.style.display = 'none';
    pauseBtn.style.display = 'inline-block';
    requestAnimationFrame(loop);
  });

  // Restart button
  restartBtn.addEventListener('click', resetGame);

  // Start the game for the first time
  resetGame();
</script>
</body>
</html>

created 1 day ago by Che Jack

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