df1.github.io/basketball.html at master · df1/df1.github.io · GitHub

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<!DOCTYPE html>
<html lang="zh-TW">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no, viewport-fit=cover">
  <title>DIY 籃球機計分系統</title>
  <style>
    * { box-sizing: border-box; touch-action: manipulation; }
    body {
      margin: 0; padding: 0; background: #0a0a0f; color: #fff;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
      text-align: center; display: flex; flex-direction: column; align-items: center; justify-content: center;
      min-height: 100vh; overflow: hidden;
    }

    #app-container {
      position: relative; width: 100vw; height: 100vh;
      background: #12121c; display: flex; flex-direction: column; overflow: hidden;
    }

    /* --- 直向模式 HUD --- */
    #header {
      padding: 10px; background: #1a1a2b; display: flex; justify-content: space-around; align-items: center;
      border-bottom: 2px solid #2a2a40; z-index: 10; flex-shrink: 0;
    }
    .hud-title { font-size: 0.75rem; color: #8a8aa0; text-transform: uppercase; }
    .hud-value { font-size: 1.6rem; font-weight: 800; color: #00ffcc; text-shadow: 0 0 10px rgba(0,255,204,0.5); }
    .hud-score { color: #ff0055; text-shadow: 0 0 10px rgba(255,0,85,0.5); }

    .btn-quit {
      background: #3a2233; color: #ff5588; border: 1px solid #ff0055;
      padding: 6px 12px; border-radius: 6px; font-size: 0.85rem; font-weight: bold; cursor: pointer;
    }

    /* --- 攝影機畫面區 --- */
    #viewfinder {
      position: relative; flex: 1; width: 100%; height: 100%; background: #000; overflow: hidden;
      display: flex; align-items: center; justify-content: center; z-index: 1;
    }
    video, canvas { position: absolute; width: 100%; height: 100%; object-fit: cover; }
    .mirror { transform: scaleX(-1); }

    /* --- 偵測框 ROI --- */
    #roi-box {
      position: absolute; border: 3px dashed #00ffcc; box-shadow: 0 0 15px rgba(0,255,204,0.4);
      background: rgba(0, 255, 204, 0.15); cursor: move;
      z-index: 30; display: flex; align-items: center; justify-content: center;
      touch-action: none;
    }
    #roi-box::after {
      content: "對準籃框入口"; font-size: 11px; color: #fff; background: rgba(0,0,0,0.6);
      padding: 2px 5px; border-radius: 4px; pointer-events: none;
    }
    .resize-handle {
      position: absolute; width: 26px; height: 26px; background: #00ffcc;
      bottom: -13px; right: -13px; border-radius: 50%; cursor: se-resize;
      border: 3px solid #000; z-index: 31;
    }

    /* --- 橫向模式 --- */
    @media (orientation: landscape) {
      #app-container { flex-direction: row; }
      #header {
        flex-direction: column; width: 160px; height: 100%;
        border-bottom: none; border-right: 2px solid #2a2a40; justify-content: space-evenly;
        padding: 15px 5px;
      }
      .hud-value { font-size: 1.8rem; }
    }

    /* --- 浮層選單 UI (關鍵修正：移除 backdrop-filter 防止背景 video 渲染被凍結) --- */
    .overlay-screen {
      position: absolute; top: 0; left: 0; width: 100%; height: 100%;
      background: rgba(18, 18, 28, 0.96); /* 使用高不透明度替代 blur */
      z-index: 20; display: flex; flex-direction: column; padding: 20px;
      overflow-y: auto; justify-content: center; align-items: center;
    }
    .hidden { display: none !important; }

    h2 { font-size: 1.5rem; margin-top: 0; margin-bottom: 12px; color: #ff0055; letter-spacing: 1px; }

    .form-grid {
      display: grid; grid-template-columns: 1fr; gap: 10px; width: 100%; max-width: 360px; text-align: left;
    }
    @media (orientation: landscape) {
      .form-grid { grid-template-columns: 1fr 1fr; max-width: 560px; }
    }

    .form-group { width: 100%; }
    label { display: block; font-size: 0.8rem; color: #aaa; margin-bottom: 4px; }
    input, select {
      width: 100%; padding: 8px 12px; background: #222235; border: 1px solid #3a3a55;
      border-radius: 8px; color: #fff; font-size: 0.95rem; outline: none;
    }
    input:focus { border-color: #00ffcc; }

    .btn {
      width: 100%; max-width: 360px; padding: 12px; margin-top: 10px; background: linear-gradient(135deg, #ff0055, #ff5500);
      border: none; border-radius: 10px; color: #fff; font-size: 1rem; font-weight: bold;
      cursor: pointer; box-shadow: 0 4px 15px rgba(255,0,85,0.4);
    }
    .btn:active { transform: scale(0.98); }
    .btn-secondary { background: #2a2a40; box-shadow: none; border: 1px solid #4a4a65; }
    .btn-accent { background: linear-gradient(135deg, #00b894, #00cec9); box-shadow: 0 4px 15px rgba(0,206,201,0.3); }

    #countdown-display {
      font-size: 6rem; font-weight: 900; color: #00ffcc; text-shadow: 0 0 30px #00ffcc;
      animation: pulse 0.8s infinite alternate;
    }
    @keyframes pulse { from { transform: scale(0.9); } to { transform: scale(1.1); } }

    #align-hint {
      position: absolute; top: 15px; left: 50%; transform: translateX(-50%);
      background: rgba(0,0,0,0.75); border: 1px solid #00ffcc; padding: 8px 16px;
      border-radius: 20px; color: #00ffcc; font-size: 0.85rem; z-index: 15; pointer-events: none;
    }

    .leaderboard-table { width: 100%; max-width: 360px; border-collapse: collapse; margin: 15px 0; }
    .leaderboard-table th, .leaderboard-table td { padding: 8px; border-bottom: 1px solid #3a3a55; text-align: left; }
    .leaderboard-table th { color: #8a8aa0; font-size: 0.8rem; }
    .rank-1 { color: #ffd700; font-weight: bold; }
  </style>
</head>
<body>

  <div id="app-container">
    <!-- 1. 遊戲實時 HUD -->
    <div id="header">
      <div>
        <div class="hud-title">PLAYER</div>
        <div class="hud-value" id="hud-player">Ryan</div>
      </div>
      <div>
        <div class="hud-title">TIME</div>
        <div class="hud-value" id="hud-time">60</div>
      </div>
      <div>
        <div class="hud-title">SCORE</div>
        <div class="hud-value hud-score" id="hud-score">0</div>
      </div>
      <button class="btn-quit" id="btn-early-finish">提前結束 🏁</button>
    </div>

    <!-- 2. 攝影機檢視與偵測區域 -->
    <div id="viewfinder">
      <video id="webcam" autoplay playsinline class="mirror"></video>
      <canvas id="canvas" style="display:none;"></canvas>

      <div id="align-hint" class="hidden">🎯 請拖曳與縮放綠框對準籃框入口</div>

      <div id="roi-box" style="top: 35%; left: 35%; width: 130px; height: 80px;">
        <div class="resize-handle" id="resize-handle"></div>
      </div>
    </div>

    <!-- 3. 選單：遊戲設定畫面 -->
    <div id="screen-setup" class="overlay-screen">
      <h2>🏀 籃球機設定</h2>

      <div class="form-grid">
        <div class="form-group">
          <label>相機控制</label>
          <button class="btn btn-secondary" id="btn-toggle-cam" style="margin-top:0;">🔄 切換鏡頭</button>
        </div>

        <div class="form-group">
          <label>偵測校準</label>
          <button class="btn btn-accent" id="btn-align-roi" style="margin-top:0;">🎯 調整籃框偵測位置</button>
        </div>

        <div class="form-group">
          <label for="select-time">比賽時間</label>
          <select id="select-time">
            <option value="30">30 秒</option>
            <option value="60" selected>60 秒</option>
            <option value="90">90 秒</option>
          </select>
        </div>

        <div class="form-group">
          <label for="select-players">玩家人數</label>
          <select id="select-players">
            <option value="1">1 位</option>
            <option value="2" selected>2 位</option>
            <option value="3">3 位</option>
            <option value="4">4 位</option>
          </select>
        </div>
      </div>

      <div id="player-names-container" class="form-grid" style="margin-top: 10px;"></div>

      <button class="btn" id="btn-start-game">開始遊戲 🏀</button>
    </div>

    <!-- 4. 校準模式確認按鈕工具列 -->
    <div id="align-controls" class="hidden" style="position: absolute; bottom: 0; left: 0; width: 100%; height: 100px; background: linear-gradient(to top, rgba(0,0,0,0.8), transparent); z-index: 25; display: flex; justify-content: center; align-items: center; padding-bottom: 20px; pointer-events: none;">
      <button class="btn btn-accent" id="btn-confirm-align" style="max-width: 280px; margin-top: 0; pointer-events: auto;">完成調整，返回選單 👍</button>
    </div>

    <!-- 5. 選單：準備 & 3-2-1 倒數畫面 -->
    <div id="screen-countdown" class="overlay-screen hidden">
      <div style="font-size: 1.4rem; color: #aaa;">準備好投籃！</div>
      <div id="next-player-name" style="font-size: 2rem; font-weight: bold; margin: 10px 0; color: #fff;"></div>
      <div id="countdown-display">3</div>
    </div>

    <!-- 6. 選單：單人結束 / 換人過場畫面 -->
    <div id="screen-turn-result" class="overlay-screen hidden">
      <h2 style="color: #00ffcc;">時間到！</h2>
      <div id="turn-summary-text" style="font-size: 1.2rem; margin-bottom: 20px;"></div>
      <button class="btn" id="btn-next-turn">換下一位玩家 ➡️</button>
    </div>

    <!-- 7. 選單：總排行榜 -->
    <div id="screen-leaderboard" class="overlay-screen hidden">
      <h2>🏆 最終排行榜</h2>
      <table class="leaderboard-table">
        <thead>
          <tr><th>名次</th><th>玩家</th><th>得分</th></tr>
        </thead>
        <tbody id="leaderboard-body"></tbody>
      </table>
      <button class="btn" id="btn-restart">再玩一次 🔄</button>
    </div>
  </div>

  <script>
    const DEFAULT_NAMES = ["Ryan", "Asher", "Jen", "Ellis"];

    let facingMode = "user";
    let currentStream = null;
    let gameTimeLimit = 60;
    let players = [];
    let currentPlayerIndex = 0;
    let scores = {};

    let isPlaying = false;
    let currentScore = 0;
    let timeLeft = 0;
    let gameTimer = null;

    let isCooldown = false;
    let prevFrameData = null;

    const video = document.getElementById('webcam');
    const canvas = document.getElementById('canvas');
    const ctx = canvas.getContext('2d');
    const roiBox = document.getElementById('roi-box');
    const selectPlayers = document.getElementById('select-players');
    const playerNamesContainer = document.getElementById('player-names-container');

    // --- 1. 相機初始化與切換 ---
    async function initCamera() {
      if (currentStream) {
        currentStream.getTracks().forEach(track => track.stop());
      }
      try {
        currentStream = await navigator.mediaDevices.getUserMedia({
          video: { facingMode: facingMode, width: { ideal: 640 }, height: { ideal: 480 } },
          audio: false
        });
        video.srcObject = currentStream;
        await video.play();

        if (facingMode === "user") {
          video.classList.add('mirror');
        } else {
          video.classList.remove('mirror');
        }
      } catch (err) {
        alert("無法讀取鏡頭，請確認存取權限！");
      }
    }

    document.getElementById('btn-toggle-cam').addEventListener('click', () => {
      facingMode = (facingMode === "user") ? "environment" : "user";
      initCamera();
    });

    // --- 2. 獨立調整籃框區域 ---
    document.getElementById('btn-align-roi').addEventListener('click', () => {
      document.getElementById('screen-setup').classList.add('hidden');
      document.getElementById('align-hint').classList.remove('hidden');
      const controls = document.getElementById('align-controls');
      controls.classList.remove('hidden');
      controls.style.display = 'flex';
    });

    document.getElementById('btn-confirm-align').addEventListener('click', () => {
      document.getElementById('align-hint').classList.add('hidden');
      const controls = document.getElementById('align-controls');
      controls.classList.add('hidden');
      controls.style.display = 'none';
      document.getElementById('screen-setup').classList.remove('hidden');
    });

    // --- 3. 玩家動態介面 ---
    function renderPlayerInputs() {
      const count = parseInt(selectPlayers.value);
      playerNamesContainer.innerHTML = '';
      for (let i = 0; i < count; i++) {
        const div = document.createElement('div');
        div.className = 'form-group';
        div.innerHTML = `
          <label>玩家 ${i + 1} 名字</label>
          <input type="text" id="input-player-${i}" value="${DEFAULT_NAMES[i] || 'Player ' + (i+1)}">
        `;
        playerNamesContainer.appendChild(div);
      }
    }
    selectPlayers.addEventListener('change', renderPlayerInputs);
    renderPlayerInputs();

    // --- 4. 手動拖曳與縮放 ROI 綠框 ---
    let isDragging = false, isResizing = false;
    let startX, startY, startW, startH, startLeft, startTop;

    roiBox.addEventListener('mousedown', handlePointerDown);
    roiBox.addEventListener('touchstart', handlePointerDown, { passive: false });

    function handlePointerDown(e) {
      if (e.type === 'touchstart') e.preventDefault();

      const p = e.touches ? e.touches[0] : e;

      if (e.target.id === 'resize-handle') {
        isResizing = true;
        isDragging = false;
        startW = roiBox.offsetWidth;
        startH = roiBox.offsetHeight;
      } else {
        isDragging = true;
        isResizing = false;
        startLeft = roiBox.offsetLeft;
        startTop = roiBox.offsetTop;
      }

      startX = p.clientX;
      startY = p.clientY;

      if (e.type === 'touchstart') {
        window.addEventListener('touchmove', handlePointerMove, { passive: false });
        window.addEventListener('touchend', handlePointerUp);
      } else {
        window.addEventListener('mousemove', handlePointerMove);
        window.addEventListener('mouseup', handlePointerUp);
      }
    }

    function handlePointerMove(e) {
      if (!isDragging && !isResizing) return;
      if (e.type === 'touchmove') e.preventDefault();

      const p = e.touches ? e.touches[0] : e;
      const dx = p.clientX - startX;
      const dy = p.clientY - startY;

      if (isResizing) {
        roiBox.style.width = Math.max(60, startW + dx) + 'px';
        roiBox.style.height = Math.max(40, startH + dy) + 'px';
      } else if (isDragging) {
        roiBox.style.left = (startLeft + dx) + 'px';
        roiBox.style.top = (startTop + dy) + 'px';
      }
    }

    function handlePointerUp(e) {
      isDragging = false;
      isResizing = false;

      window.removeEventListener('touchmove', handlePointerMove);
      window.removeEventListener('mousemove', handlePointerMove);
      window.removeEventListener('touchend', handlePointerUp);
      window.removeEventListener('mouseup', handlePointerUp);
    }

    // --- 5. Web Audio 音效 ---
    function playSound(type) {
      try {
        const audioCtx = new (window.AudioContext || window.webkitAudioContext)();
        const osc = audioCtx.createOscillator();
        const gain = audioCtx.createGain();
        osc.connect(gain);
        gain.connect(audioCtx.destination);

        if (type === 'goal') {
          osc.type = 'sine';
          osc.frequency.setValueAtTime(587.33, audioCtx.currentTime);
          osc.frequency.exponentialRampToValueAtTime(880, audioCtx.currentTime + 0.15);
          gain.gain.setValueAtTime(0.3, audioCtx.currentTime);
          gain.gain.exponentialRampToValueAtTime(0.01, audioCtx.currentTime + 0.15);
          osc.start(); osc.stop(audioCtx.currentTime + 0.15);
        } else if (type === 'beep') {
          osc.type = 'triangle';
          osc.frequency.setValueAtTime(440, audioCtx.currentTime);
          gain.gain.setValueAtTime(0.2, audioCtx.currentTime);
          gain.gain.exponentialRampToValueAtTime(0.01, audioCtx.currentTime + 0.1);
          osc.start(); osc.stop(audioCtx.currentTime + 0.1);
        } else if (type === 'end') {
          osc.type = 'square';
          osc.frequency.setValueAtTime(220, audioCtx.currentTime);
          gain.gain.setValueAtTime(0.3, audioCtx.currentTime);
          gain.gain.exponentialRampToValueAtTime(0.01, audioCtx.currentTime + 0.5);
          osc.start(); osc.stop(audioCtx.currentTime + 0.5);
        }
      } catch (e) {}
    }

    // --- 6. 遊戲流程控制 ---
    document.getElementById('btn-start-game').addEventListener('click', () => {
      const count = parseInt(selectPlayers.value);
      players = [];
      for (let i = 0; i < count; i++) {
        const name = document.getElementById(`input-player-${i}`).value.trim();
        players.push(name || `Player ${i+1}`);
      }
      gameTimeLimit = parseInt(document.getElementById('select-time').value);
      currentPlayerIndex = 0;
      scores = {};

      document.getElementById('screen-setup').classList.add('hidden');
      startTurnCountdown();
    });

    function startTurnCountdown() {
      const name = players[currentPlayerIndex];
      document.getElementById('screen-turn-result').classList.add('hidden');
      document.getElementById('screen-countdown').classList.remove('hidden');
      document.getElementById('next-player-name').innerText = `輪到 ${name}！`;

      let count = 3;
      const countEl = document.getElementById('countdown-display');
      countEl.innerText = count;
      playSound('beep');

      const timer = setInterval(() => {
        count--;
        if (count > 0) {
          countEl.innerText = count;
          playSound('beep');
        } else {
          clearInterval(timer);
          document.getElementById('screen-countdown').classList.add('hidden');
          startPlaying();
        }
      }, 1000);
    }

    function startPlaying() {
      // 關鍵修復：重新喚醒影片播放（防止行動裝置選單遮罩凍結影片）
      if (video.paused) {
        video.play().catch(e => console.log(e));
      }

      // 重置當前玩家狀態
      prevFrameData = null;
      isCooldown = false;
      roiBox.style.borderColor = '#00ffcc';

      isPlaying = true;
      currentScore = 0;
      timeLeft = gameTimeLimit;

      document.getElementById('hud-player').innerText = players[currentPlayerIndex];
      document.getElementById('hud-time').innerText = timeLeft;
      document.getElementById('hud-score').innerText = currentScore;

      if (gameTimer) clearInterval(gameTimer);
      gameTimer = setInterval(() => {
        timeLeft--;
        document.getElementById('hud-time').innerText = timeLeft;
        if (timeLeft <= 0) {
          endTurn();
        }
      }, 1000);
    }

    document.getElementById('btn-early-finish').addEventListener('click', () => {
      if (isPlaying && confirm("確定要提前結束目前玩家的投籃嗎？")) {
        endTurn();
      }
    });

    function endTurn() {
      isPlaying = false;
      clearInterval(gameTimer);
      playSound('end');

      const name = players[currentPlayerIndex];
      scores[name] = currentScore;

      if (currentPlayerIndex < players.length - 1) {
        document.getElementById('turn-summary-text').innerText = `${name} 獲得 ${currentScore} 分！`;
        document.getElementById('btn-next-turn').innerText = `換下一位：${players[currentPlayerIndex + 1]} 準備`;
        document.getElementById('screen-turn-result').classList.remove('hidden');
      } else {
        showLeaderboard();
      }
    }

    document.getElementById('btn-next-turn').addEventListener('click', () => {
      currentPlayerIndex++;
      startTurnCountdown();
    });

    function showLeaderboard() {
      document.getElementById('screen-turn-result').classList.add('hidden');
      document.getElementById('screen-leaderboard').classList.remove('hidden');

      const sorted = Object.keys(scores)
        .map(name => ({ name, score: scores[name] }))
        .sort((a, b) => b.score - a.score);

      const tbody = document.getElementById('leaderboard-body');
      tbody.innerHTML = '';
      sorted.forEach((item, index) => {
        const tr = document.createElement('tr');
        if (index === 0) tr.className = 'rank-1';
        tr.innerHTML = `
          <td>${index === 0 ? '👑 1' : index + 1}</td>
          <td>${item.name}</td>
          <td>${item.score}</td>
        `;
        tbody.appendChild(tr);
      });
    }

    document.getElementById('btn-restart').addEventListener('click', () => {
      document.getElementById('screen-leaderboard').classList.add('hidden');
      document.getElementById('screen-setup').classList.remove('hidden');
    });

    // --- 7. 影像動態偵測 (ROI) ---
    function processFrame() {
      try {
        // 只有在遊戲進行中才執行動態比對與畫面處置
        if (isPlaying && video.readyState === video.HAVE_ENOUGH_DATA) {
          canvas.width = video.videoWidth;
          canvas.height = video.videoHeight;

          const viewRect = video.getBoundingClientRect();
          if (viewRect.width > 0 && viewRect.height > 0) {
            const scaleX = video.videoWidth / viewRect.width;
            const scaleY = video.videoHeight / viewRect.height;

            const roiRect = roiBox.getBoundingClientRect();
            let rx = Math.max(0, (roiRect.left - viewRect.left) * scaleX);
            let ry = Math.max(0, (roiRect.top - viewRect.top) * scaleY);
            let rw = Math.min(canvas.width - rx, roiRect.width * scaleX);
            let rh = Math.min(canvas.height - ry, roiRect.height * scaleY);

            if (rw > 5 && rh > 5) {
              ctx.drawImage(video, 0, 0, canvas.width, canvas.height);
              const currentFrame = ctx.getImageData(rx, ry, rw, rh);

              if (prevFrameData && prevFrameData.data.length === currentFrame.data.length && !isCooldown) {
                let diff = 0;
                const len = currentFrame.data.length;

                for (let i = 0; i < len; i += 4) {
                  const rD = Math.abs(currentFrame.data[i] - prevFrameData.data[i]);
                  const gD = Math.abs(currentFrame.data[i+1] - prevFrameData.data[i+1]);
                  const bD = Math.abs(currentFrame.data[i+2] - prevFrameData.data[i+2]);
                  if (rD + gD + bD > 90) diff++;
                }

                if (diff > (rw * rh * 0.08)) {
                  currentScore += 2;
                  document.getElementById('hud-score').innerText = currentScore;
                  playSound('goal');

                  isCooldown = true;
                  roiBox.style.borderColor = '#ff0055';
                  setTimeout(() => {
                    isCooldown = false;
                    roiBox.style.borderColor = '#00ffcc';
                  }, 900);
                }
              }
              prevFrameData = currentFrame;
            }
          }
        }
      } catch (err) {
        console.error("Frame processing error:", err);
      }
      requestAnimationFrame(processFrame);
    }

    initCamera().then(() => {
      requestAnimationFrame(processFrame);
    });
  </script>
</body>
</html>