Codice HTML CSS JavaScript del gioco Pac-Man

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3 December 2024

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <title>Pac-Man Classic</title>
  <style>
    body {
      background: black;
      color: white;
      font-family: monospace;
      display: flex;
      flex-direction: column;
      align-items: center;
    }
    h1 { color: yellow; }
    #game {
      display: grid;
      grid-template-columns: repeat(20, 20px);
      gap: 1px;
      margin-bottom: 10px;
    }
    .cell {
      width: 20px;
      height: 20px;
      position: relative;
    }
    .wall {
      background: #2222aa;
    }
    .dot::after {
      content: '';
      display: block;
      width: 4px;
      height: 4px;
      background: white;
      margin: 8px auto;
      border-radius: 50%;
    }
    .pellet::after {
      content: '';
      display: block;
      width: 10px;
      height: 10px;
      background: orange;
      margin: 5px auto;
      border-radius: 50%;
    }
    .pacman {
      background: yellow;
      border-radius: 50%;
      clip-path: polygon(0% 0%, 100% 50%, 0% 100%);
      animation: chomp 0.2s infinite alternate;
    }
    @keyframes chomp {
      0% { clip-path: polygon(0% 0%, 100% 50%, 0% 100%); }
      100% { clip-path: circle(50%); }
    }

.ghost {
      background: red;
      border-radius: 50% 50% 40% 40%;
      position: relative;
    }

.ghost::before, .ghost::after {
      content: '';
      position: absolute;
      top: 4px;
      width: 6px;
      height: 6px;
      background: white;
      border-radius: 50%;
    }
    .ghost::before {
      left: 3px;
    }
    .ghost::after {
      right: 3px;
    }

.ghost.scared {
      background: lightblue !important;
    }

.ghost.scared::before,
    .ghost.scared::after {
      background: white;
    }

.ghost.eye-left, .ghost.eye-right {
      position: absolute;
      width: 3px;
      height: 3px;
      background: black;
      border-radius: 50%;
      top: 6px;
    }

.ghost.eye-left { left: 5px; }
    .ghost.eye-right { right: 5px; }

</style>
</head>
<body>
  <h1>Pac-Man</h1>
  <div>Score: <span id="score">0</span> | Lives: <span id="lives">3</span></div>
  <div id="game"></div>
  <script>
    const width = 20;
    const grid = document.getElementById('game');
    const scoreDisplay = document.getElementById('score');
    const livesDisplay = document.getElementById('lives');
    let score = 0;
    let lives = 3;
    let pacmanIndex = 229;
    let ghostIndex = 210;
    let scared = false;

const layout = new Array(400).fill(0).map((_, i) => {
      if (i < 20 || i % 20 === 0 || i % 20 === 19 || i >= 380) return 1;
      if ([42, 43, 44, 45, 46].includes(i)) return 3; // pellets
      return 0;
    });

const cells = [];

function createBoard() {
      layout.forEach((val, i) => {
        const cell = document.createElement('div');
        cell.classList.add('cell');
        if (val === 1) cell.classList.add('wall');
        if (val === 0) cell.classList.add('dot');
        if (val === 3) cell.classList.add('pellet');
        grid.appendChild(cell);
        cells.push(cell);
      });
    }

function drawPacman() {
      cells.forEach(cell => cell.classList.remove('pacman'));
      cells[pacmanIndex].classList.add('pacman');
    }

function drawGhost() {
      cells.forEach(cell => {
        cell.classList.remove('ghost', 'scared');
        const eyes = cell.querySelectorAll('.eye-left, .eye-right');
        eyes.forEach(e => e.remove());
      });

const ghostCell = cells[ghostIndex];
      ghostCell.classList.add('ghost');
      if (scared) ghostCell.classList.add('scared');

// Eyes
      if (!scared) {
        const eyeLeft = document.createElement('div');
        eyeLeft.classList.add('eye-left');
        const eyeRight = document.createElement('div');
        eyeRight.classList.add('eye-right');
        ghostCell.appendChild(eyeLeft);
        ghostCell.appendChild(eyeRight);
      }
    }

function movePacman(e) {
      cells[pacmanIndex].classList.remove('pacman');
      switch (e.key) {
        case 'ArrowUp':
          if (!cells[pacmanIndex - width].classList.contains('wall')) pacmanIndex -= width;
          break;
        case 'ArrowDown':
          if (!cells[pacmanIndex + width].classList.contains('wall')) pacmanIndex += width;
          break;
        case 'ArrowLeft':
          if (!cells[pacmanIndex - 1].classList.contains('wall')) pacmanIndex -= 1;
          break;
        case 'ArrowRight':
          if (!cells[pacmanIndex + 1].classList.contains('wall')) pacmanIndex += 1;
          break;
      }
      eatDot();
      eatPellet();
      checkGhost();
      drawPacman();
    }

function moveGhost() {
      const directions = [-1, +1, -width, +width];
      const dir = directions[Math.floor(Math.random() * 4)];
      const next = ghostIndex + dir;
      if (!cells[next].classList.contains('wall')) {
        ghostIndex = next;
        drawGhost();
        checkGhost();
      }
    }

function eatDot() {
      if (cells[pacmanIndex].classList.contains('dot')) {
        cells[pacmanIndex].classList.remove('dot');
        score += 10;
        scoreDisplay.textContent = score;
      }
    }

createBoard();
    drawPacman();
    drawGhost();
    document.addEventListener('keydown', movePacman);
    setInterval(moveGhost, 400);
  </script>
</body>
</html>

Codice HTML CSS JavaScript del gioco Pac-Man

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