Voogle.html

<!DOCTYPE html>
<html lang="ja">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Voogle</title>
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/normalize/8.0.1/normalize.css">
  <style>
    /* 全体の基本設定 */
    body {
      font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
      margin: 0;
      padding: 0;
      background: #f7f7f7;
      color: #333;
      line-height: 1.6;
    }
    header {
      background: #003d66;
      color: #fff;
      padding: 20px;
      text-align: center;
    }
    header h1 {
      margin: 0;
      font-size: 2.5em;
    }
    nav {
      margin-top: 10px;
    }
    nav a {
      color: #fff;
      margin: 0 15px;
      text-decoration: none;
      font-size: 1em;
    }
    /* レイアウトコンテナ */
    .container {
      display: flex;
      max-width: 1200px;
      margin: 20px auto;
      padding: 0 20px;
    }
    /* サイドバー */
    .sidebar {
      flex: 0 0 250px;
      background: #fff;
      padding: 20px;
      margin-right: 20px;
      border-radius: 8px;
      box-shadow: 0 2px 4px rgba(0,0,0,0.1);
      height: fit-content;
    }
    .sidebar h2 {
      font-size: 1.3em;
      margin-top: 0;
      border-bottom: 1px solid #eee;
      padding-bottom: 5px;
    }
    .sidebar section {
      margin-bottom: 20px;
    }
    .sidebar label {
      display: block;
      margin-bottom: 5px;
    }
    .sidebar input[type="date"],
    .sidebar select {
      width: 100%;
      padding: 8px;
      margin-bottom: 10px;
      border: 1px solid #ccc;
      border-radius: 4px;
    }
    .sidebar .checkbox-group label {
      display: inline-block;
      margin-right: 10px;
      font-size: 0.9em;
    }
    .sidebar ul {
      list-style: none;
      padding-left: 0;
    }
    .sidebar li {
      padding: 5px 0;
      cursor: pointer;
      color: #005fa3;
    }
    .sidebar li:hover {
      text-decoration: underline;
    }
    /* メインコンテンツ */
    .main-content {
      flex: 1;
      background: #fff;
      padding: 20px;
      border-radius: 8px;
      box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    }
    /* 検索フォーム */
    .search-section {
      position: relative;
      margin-bottom: 20px;
    }
    .search-form {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .search-form input[type="text"] {
      flex: 1;
      padding: 12px;
      font-size: 1.1em;
      border: 1px solid #ccc;
      border-radius: 4px;
      outline: none;
    }
    .search-form button {
      padding: 12px 20px;
      font-size: 1.1em;
      border: none;
      border-radius: 4px;
      cursor: pointer;
    }
    #searchButton {
      background: #005fa3;
      color: #fff;
    }
    #searchButton:hover {
      background: #00407a;
    }
    /* オートサジェスト */
    .suggestions {
      list-style: none;
      margin: 0;
      padding: 0;
      position: absolute;
      width: calc(100% - 20px);
      background: #fff;
      border: 1px solid #ccc;
      border-top: none;
      z-index: 10;
      max-height: 200px;
      overflow-y: auto;
    }
    .suggestions li {
      padding: 8px 10px;
      cursor: pointer;
    }
    .suggestions li:hover {
      background: #f0f8ff;
    }
    /* ローディングスピナー */
    .spinner {
      display: none;
      margin: 20px auto;
      width: 50px;
      height: 50px;
      border: 6px solid rgba(0,0,0,0.1);
      border-top-color: #005fa3;
      border-radius: 50%;
      animation: spin 0.8s linear infinite;
    }
    @keyframes spin {
      to { transform: rotate(360deg); }
    }
    /* 検索結果カード */
    .results {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 20px;
    }
    .result-item {
      background: #fafafa;
      border: 1px solid #eee;
      padding: 15px;
      border-radius: 8px;
      transition: box-shadow 0.2s;
    }
    .result-item:hover {
      box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    }
    .result-title {
      font-size: 1.2em;
      color: #005fa3;
      margin: 0 0 5px 0;
    }
    .result-title a {
      text-decoration: none;
      color: inherit;
    }
    .result-url {
      font-size: 0.85em;
      color: #888;
      margin-bottom: 8px;
      word-break: break-all;
    }
    .result-snippet {
      font-size: 0.95em;
      margin-bottom: 10px;
    }
    .result-meta {
      font-size: 0.8em;
      color: #666;
    }
    /* ページネーション */
    .pagination {
      text-align: center;
      margin: 30px 0;
    }
    .pagination a {
      margin: 0 5px;
      text-decoration: none;
      color: #005fa3;
      padding: 8px 12px;
      border: 1px solid #ccc;
      border-radius: 4px;
      cursor: pointer;
    }
    .pagination a.active {
      background: #005fa3;
      color: #fff;
      border-color: #005fa3;
    }
    .pagination a:hover {
      background: #f0f8ff;
    }
    /* 「さらに読み込む」ボタン */
    .load-more {
      display: block;
      width: 200px;
      margin: 20px auto;
      padding: 12px;
      text-align: center;
      background: #005fa3;
      color: #fff;
      border: none;
      border-radius: 4px;
      cursor: pointer;
    }
    .load-more:hover {
      background: #00407a;
    }
    /* フッター */
    footer {
      text-align: center;
      padding: 15px;
      font-size: 0.8em;
      color: #aaa;
      background: #f7f7f7;
      margin-top: 20px;
    }
    /* レスポンシブ対応 */
    @media (max-width: 800px) {
      .container {
        flex-direction: column;
      }
      .sidebar {
        margin-right: 0;
        margin-bottom: 20px;
      }
    }
  </style>
</head>
<body>
  <header>
    <h1>Voogle検索エンジン</h1>
    <nav>
      <a href="#">ホーム</a>
      <a href="#">使い方</a>
      <a href="#">お問い合わせ</a>
    </nav>
  </header>

  <div class="container">
    <!-- サイドバー:フィルター・ソート・検索履歴 -->
    <aside class="sidebar">
      <section>
        <h2>フィルター</h2>
        <form id="filterForm">
          <label for="startDate">開始日:</label>
          <input type="date" id="startDate">
          <label for="endDate">終了日:</label>
          <input type="date" id="endDate">
          <label>コンテンツタイプ:</label>
          <div class="checkbox-group">
            <!-- Wikipedia検索結果用として追加 -->
            <label><input type="checkbox" name="contentType" value="wikipedia" checked> Wikipedia</label>
            <!-- 他の項目は将来的な拡張用 -->
            <label><input type="checkbox" name="contentType" value="news" checked> ニュース</label>
            <label><input type="checkbox" name="contentType" value="blog" checked> ブログ</label>
            <label><input type="checkbox" name="contentType" value="forum" checked> フォーラム</label>
          </div>
          <label for="sortOrder">ソート順:</label>
          <select id="sortOrder">
            <option value="relevance">関連順</option>
            <option value="date">新着順</option>
          </select>
          <button type="submit" style="margin-top:10px; padding:8px 12px; background:#005fa3; color:#fff; border:none; border-radius:4px; cursor:pointer;">適用</button>
        </form>
      </section>
      <section>
        <h2>検索履歴</h2>
        <ul id="searchHistory">
          <!-- 最近の検索キーワードを表示 -->
        </ul>
      </section>
    </aside>

    <!-- メインコンテンツ:検索フォーム&結果 -->
    <main class="main-content">
      <div class="search-section">
        <form id="searchForm" class="search-form">
          <input type="text" id="searchInput" placeholder="検索キーワードを入力" autocomplete="off">
          <button type="submit" id="searchButton">検索</button>
        </form>
        <!-- オートサジェスト -->
        <ul id="suggestions" class="suggestions"></ul>
      </div>
      <!-- ローディングスピナー -->
      <div id="spinner" class="spinner"></div>
      <!-- 検索結果カード -->
      <div id="results" class="results">
        <!-- 結果はJavaScriptで動的レンダリング -->
      </div>
      <!-- ページネーション -->
      <div id="pagination" class="pagination"></div>
      <!-- Load More ボタン(ページネーションの代替) -->
      <button id="loadMore" class="load-more">さらに読み込む</button>
    </main>
  </div>

  <footer>
    &copy; 2025 Voogle. All rights reserved.
  </footer>

  <script>
    // --- オートサジェスト用のサンプル候補 ---
    const suggestionsData = [
      "JavaScript", "HTML", "CSS", "クローラー", "検索エンジン", "Web開発", "React", "Node.js", "Python", "データスクレイピング"
    ];

    const searchInput = document.getElementById('searchInput');
    const suggestionsList = document.getElementById('suggestions');

    searchInput.addEventListener('input', function() {
      const query = this.value.toLowerCase();
      suggestionsList.innerHTML = '';
      if(query.length === 0) return;
      const filtered = suggestionsData.filter(item => item.toLowerCase().includes(query));
      filtered.forEach(item => {
        const li = document.createElement('li');
        li.textContent = item;
        li.addEventListener('click', () => {
          searchInput.value = item;
          suggestionsList.innerHTML = '';
        });
        suggestionsList.appendChild(li);
      });
    });

    // --- 検索履歴管理 ---
    const searchHistoryEl = document.getElementById('searchHistory');
    function updateSearchHistory(query) {
      let history = JSON.parse(localStorage.getItem('searchHistory')) || [];
      if (!history.includes(query)) {
        history.unshift(query);
        if(history.length > 5) history.pop();
        localStorage.setItem('searchHistory', JSON.stringify(history));
        renderSearchHistory();
      }
    }
    function renderSearchHistory() {
      let history = JSON.parse(localStorage.getItem('searchHistory')) || [];
      searchHistoryEl.innerHTML = '';
      history.forEach(item => {
        const li = document.createElement('li');
        li.textContent = item;
        li.addEventListener('click', () => {
          searchInput.value = item;
          performSearch(item);
        });
        searchHistoryEl.appendChild(li);
      });
    }
    renderSearchHistory();

    // --- Wikipedia検索結果のレンダリング ---
    function renderResults(page, results) {
      const resultsContainer = document.getElementById('results');
      // 結果カードはすべて再レンダリング(Load Moreの場合は追記可能に変更も検討)
      resultsContainer.innerHTML = '';
      const startIndex = (page - 1) * resultsPerPage;
      const endIndex = startIndex + resultsPerPage;
      const pageResults = results.slice(startIndex, endIndex);
      if(pageResults.length === 0) {
        resultsContainer.innerHTML = '<p>該当する検索結果がありません。</p>';
        return;
      }
      pageResults.forEach(result => {
        const div = document.createElement('div');
        div.className = 'result-item';
        div.innerHTML = `
          <h2 class="result-title"><a href="${result.url}" target="_blank">${result.title}</a></h2>
          <div class="result-url">${result.url}</div>
          <p class="result-snippet">${result.snippet}</p>
          <div class="result-meta">投稿日: ${result.date} | タイプ: ${result.contentType}</div>
        `;
        resultsContainer.appendChild(div);
      });
    }

    // --- ページネーションのレンダリング ---
    function renderPagination(page, totalResults) {
      const paginationContainer = document.getElementById('pagination');
      paginationContainer.innerHTML = '';
      const totalPages = Math.ceil(totalResults / resultsPerPage);
      // 前へ
      const prev = document.createElement('a');
      prev.textContent = '«';
      prev.addEventListener('click', () => {
        if(page > 1) {
          currentPage--;
          renderResults(currentPage, filteredResults);
          renderPagination(currentPage, filteredResults.length);
        }
      });
      paginationContainer.appendChild(prev);
      // ページ番号
      for(let i = 1; i <= totalPages; i++) {
        const pageLink = document.createElement('a');
        pageLink.textContent = i;
        if(i === page) pageLink.classList.add('active');
        pageLink.addEventListener('click', () => {
          currentPage = i;
          renderResults(currentPage, filteredResults);
          renderPagination(currentPage, filteredResults.length);
        });
        paginationContainer.appendChild(pageLink);
      }
      // 次へ
      const next = document.createElement('a');
      next.textContent = '»';
      next.addEventListener('click', () => {
        if(page < totalPages) {
          currentPage++;
          renderResults(currentPage, filteredResults);
          renderPagination(currentPage, filteredResults.length);
        }
      });
      paginationContainer.appendChild(next);
    }

    // --- 定数・変数 ---
    let filteredResults = []; // Wikipedia APIから取得した結果を格納
    let currentPage = 1;
    const resultsPerPage = 10;
    const spinner = document.getElementById('spinner');

    // --- Wikipedia APIを利用した検索実行 ---
    const searchForm = document.getElementById('searchForm');
    searchForm.addEventListener('submit', function(e) {
      e.preventDefault();
      const query = searchInput.value.trim();
      performSearch(query);
    });
    function performSearch(query) {
      updateSearchHistory(query);
      spinner.style.display = 'block';
      // Wikipedia APIエンドポイント(origin=* を指定してクロスオリジン対応)
      const url = "https://ja.wikipedia.org/w/api.php?action=query&list=search&format=json&origin=*&srsearch=" + encodeURIComponent(query) + "&srlimit=20";
      fetch(url)
        .then(response => response.json())
        .then(data => {
          spinner.style.display = 'none';
          if (data.query && data.query.search && data.query.search.length > 0) {
            // APIから取得した各項目のtimestampを日付文字列に変換
            filteredResults = data.query.search.map(item => {
              return {
                title: item.title,
                snippet: item.snippet,
                url: "https://ja.wikipedia.org/?curid=" + item.pageid,
                date: new Date(item.timestamp).toISOString().split('T')[0],
                contentType: "wikipedia"
              };
            });
            currentPage = 1;
            renderResults(currentPage, filteredResults);
            renderPagination(currentPage, filteredResults.length);
          } else {
            document.getElementById('results').innerHTML = '<p>該当する検索結果がありません。</p>';
          }
        })
        .catch(error => {
          spinner.style.display = 'none';
          console.error('Error:', error);
          document.getElementById('results').innerHTML = '<p>検索結果の取得に失敗しました。</p>';
        });
    }

    // --- サイドバーのフィルター処理 ---
    const filterForm = document.getElementById('filterForm');
    filterForm.addEventListener('submit', function(e) {
      e.preventDefault();
      applySidebarFilters();
      currentPage = 1;
      renderResults(currentPage, filteredResults);
      renderPagination(currentPage, filteredResults.length);
    });
    function applySidebarFilters() {
      // フィルター設定の取得
      const startDate = document.getElementById('startDate').value;
      const endDate = document.getElementById('endDate').value;
      const sortOrder = document.getElementById('sortOrder').value;
      const checkboxes = document.querySelectorAll('input[name="contentType"]:checked');
      const types = Array.from(checkboxes).map(cb => cb.value);
      // 現在のfilteredResultsに対してさらにフィルタリング
      filteredResults = filteredResults.filter(result => {
        let valid = true;
        if(startDate && result.date < startDate) valid = false;
        if(endDate && result.date > endDate) valid = false;
        if(types.length && !types.includes(result.contentType)) valid = false;
        return valid;
      });
      // ソート処理:日付の降順(新着順)の場合
      if(sortOrder === "date") {
        filteredResults.sort((a,b) => new Date(b.date) - new Date(a.date));
      }
    }

    // --- Load More ボタン ---
    const loadMoreBtn = document.getElementById('loadMore');
    loadMoreBtn.addEventListener('click', () => {
      const totalPages = Math.ceil(filteredResults.length / resultsPerPage);
      if(currentPage < totalPages) {
        currentPage++;
        // 既存の結果に追記する方式
        const resultsContainer = document.getElementById('results');
        const startIndex = (currentPage - 1) * resultsPerPage;
        const endIndex = startIndex + resultsPerPage;
        const pageResults = filteredResults.slice(startIndex, endIndex);
        pageResults.forEach(result => {
          const div = document.createElement('div');
          div.className = 'result-item';
          div.innerHTML = `
            <h2 class="result-title"><a href="${result.url}" target="_blank">${result.title}</a></h2>
            <div class="result-url">${result.url}</div>
            <p class="result-snippet">${result.snippet}</p>
            <div class="result-meta">投稿日: ${result.date} | タイプ: ${result.contentType}</div>
          `;
          resultsContainer.appendChild(div);
        });
        renderPagination(currentPage, filteredResults.length);
      }
    });
  </script>
</body>
</html>

minisns.html

<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="UTF-8">
<title>スフィア</title>
<style>
/* ======= 基本リセット ======= */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: Arial, sans-serif; background: #f7f9fc; color: #333; line-height: 1.5; }
header { background: #4a90e2; color: #fff; padding: 15px; text-align: center; }
header h1 { font-size: 28px; }
main { width: 90%; max-width: 800px; margin: 20px auto; }
/* ======= ユーザーアイコン ======= */
.user-icon { width: 40px; height: 40px; border-radius: 50%; margin-right: 10px; vertical-align: middle; }
/* ======= 認証セクション ======= */
.auth-section { background: #fff; padding: 15px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(0,0,0,0.1); }
.auth-section h2 { margin-bottom: 10px; }
.auth-section input { width: 100%; padding: 8px; margin-bottom: 10px; border: 1px solid #ccc; border-radius: 4px; }
.auth-section button { background: #4a90e2; color: #fff; border: none; padding: 8px 12px; border-radius: 4px; cursor: pointer; }
.auth-section button:hover { background: #357ab8; }
.toggle-auth { margin-top: 10px; font-size: 14px; color: #4a90e2; cursor: pointer; text-decoration: underline; }
/* ======= 投稿フォーム ======= */
.post-form { background: #fff; padding: 15px; margin-bottom: 20px; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.1); }
.post-form textarea { width: 100%; padding: 10px; border: 1px solid #ccc; border-radius: 4px; resize: vertical; font-size: 14px; }
.post-form button { background: #4a90e2; color: #fff; border: none; padding: 8px 12px; border-radius: 4px; cursor: pointer; margin-top: 10px; }
.post-form button:hover { background: #357ab8; }
/* ======= 検索セクション ======= */
.search-section { background: #fff; padding: 10px; margin-bottom: 20px; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.1); }
.search-section input { width: 100%; padding: 8px; border: 1px solid #ccc; border-radius: 4px; font-size: 14px; }
/* ======= タイムライン ======= */
.timeline { display: flex; flex-direction: column; gap: 15px; }
.post-item { background: #fff; padding: 15px; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.1); position: relative; }
.post-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.post-username { font-weight: bold; }
.post-meta { font-size: 12px; color: #777; }
.post-content { font-size: 16px; margin-bottom: 10px; }
.post-actions { margin-top: 10px; }
.post-actions button { background: transparent; border: none; color: #4a90e2; cursor: pointer; margin-right: 10px; font-size: 14px; }
.post-actions button:hover { text-decoration: underline; }
.replies { margin-top: 15px; border-top: 1px solid #eee; padding-top: 10px; }
.reply-item { background: #f2f2f2; padding: 10px; border-radius: 6px; margin-bottom: 10px; }
.reply-header { font-size: 13px; font-weight: bold; margin-bottom: 5px; }
.reply-meta { font-size: 11px; color: #555; text-align: right; }
.edit-area { margin-top: 10px; }
.edit-area textarea { width: 100%; padding: 8px; border: 1px solid #ccc; border-radius: 4px; }
.edit-area button { background: #4a90e2; color: #fff; border: none; padding: 6px 10px; border-radius: 4px; cursor: pointer; margin-top: 5px; }
.edit-area button:hover { background: #357ab8; }
/* ======= ユーティリティ(ログ/RSS)セクション ======= */
.utility-section { margin-top: 20px; text-align: center; }
.logs-section { background: #fff; padding: 15px; margin-top: 10px; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.1); font-size: 12px; color: #555; max-height: 200px; overflow-y: auto; }
.log-entry { border-bottom: 1px solid #eee; padding: 5px 0; }
footer { text-align: center; padding: 15px; font-size: 14px; color: #777; margin-top: 20px; }
</style>
</head>
<body>
<header>
<h1>スフィア</h1>
</header>
<main>
<!-- 認証セクション(ログイン/登録 or ユーザー情報表示) -->
<section id="authSection" class="auth-section"></section>
<!-- 投稿フォーム(ログイン中のみ表示) -->
<section id="postFormSection" class="post-form" style="display: none;">
<textarea id="postContent" placeholder="いまどうしてる?"></textarea>
<button id="postButton">投稿する</button>
</section>
<!-- 検索セクション -->
<section class="search-section">
<input type="text" id="searchInput" placeholder="投稿を検索">
</section>
<!-- タイムライン -->
<section id="timeline" class="timeline"></section>
<!-- ユーティリティ:ログ表示/RSSダウンロード -->
<section class="utility-section">
<button id="toggleLogsButton">ログを表示</button>
<button id="downloadRSSButton">RSSフィードをダウンロード</button>
</section>
<!-- ログ表示セクション(初期は非表示) -->
<section id="logsSection" class="logs-section" style="display: none;"></section>
</main>
<footer>
<p>&copy; 2023 スフィア</p>
</footer>
<script>
(function(){
'use strict';

// === 定数&キー定義 ===
const POSTS_KEY = 'posts';
const USERS_KEY = 'users';
const CURRENT_USER_KEY = 'currentUser';
const LOGS_KEY = 'logs';

// === データ管理変数 ===
let posts = [];
let users = [];
let currentUser = null;
let logs = [];

// === ストレージ関連関数 ===
const saveToStorage = (key, data) => localStorage.setItem(key, JSON.stringify(data));
const loadFromStorage = (key) => {
const stored = localStorage.getItem(key);
return stored ? JSON.parse(stored) : null;
};

const loadData = () => {
posts = loadFromStorage(POSTS_KEY) || [];
users = loadFromStorage(USERS_KEY) || [];
currentUser = loadFromStorage(CURRENT_USER_KEY) || null;
logs = loadFromStorage(LOGS_KEY) || [];
};

const saveData = () => {
saveToStorage(POSTS_KEY, posts);
saveToStorage(USERS_KEY, users);
saveToStorage(CURRENT_USER_KEY, currentUser);
saveToStorage(LOGS_KEY, logs);
};

// === ログ処理 ===
const addLog = (message) => {
const entry = { timestamp: new Date(), message };
logs.push(entry);
saveToStorage(LOGS_KEY, logs);
};

const renderLogs = () => {
const logsSection = document.getElementById('logsSection');
logsSection.innerHTML = '';
logs.forEach(log => {
const div = document.createElement('div');
div.className = 'log-entry';
div.textContent = `[${formatDate(log.timestamp)}] ${log.message}`;
logsSection.appendChild(div);
});
};

// === 日付フォーマット ===
const formatDate = (date) => {
const d = new Date(date);
const y = d.getFullYear();
const m = String(d.getMonth() + 1).padStart(2, '0');
const day = String(d.getDate()).padStart(2, '0');
const h = String(d.getHours()).padStart(2, '0');
const min = String(d.getMinutes()).padStart(2, '0');
return `${y}-${m}-${day} ${h}:${min}`;
};

// === RSS生成 ===
const generateRSS = () => {
const now = new Date();
let rss = `<?xml version="1.0" encoding="UTF-8"?>\n`;
rss += `<rss version="2.0">\n<channel>\n`;
rss += `<title>Advanced Mini SNS RSS Feed</title>\n`;
rss += `<link>${location.origin + location.pathname}</link>\n`;
rss += `<description>RSS Feed of posts from Advanced Mini SNS</description>\n`;
rss += `<lastBuildDate>${now.toUTCString()}</lastBuildDate>\n`;
rss += `<language>ja</language>\n`;
posts.forEach(post => {
const postUrl = `${location.origin + location.pathname}?post=${post.id}`;
const title = `Post by ${post.username}: ${post.content.substring(0,20)}...`;
rss += `<item>\n`;
rss += `<title>${title}</title>\n`;
rss += `<link>${postUrl}</link>\n`;
rss += `<description><![CDATA[${post.content}]]></description>\n`;
rss += `<pubDate>${new Date(post.timestamp).toUTCString()}</pubDate>\n`;
rss += `<guid>${post.id}</guid>\n`;
rss += `</item>\n`;
});
rss += `</channel>\n</rss>`;
return rss;
};

const downloadRSS = () => {
const rssContent = generateRSS();
const blob = new Blob([rssContent], { type: 'application/rss+xml' });
const url = URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
a.download = 'feed.xml';
a.click();
URL.revokeObjectURL(url);
addLog('RSSフィードをダウンロード');
};

// === 認証処理 ===
const renderAuthSection = () => {
const authSection = document.getElementById('authSection');
authSection.innerHTML = '';
if (currentUser) {
// ログイン済み:アイコンとウェルカムメッセージ、ログアウトボタン
const container = document.createElement('div');
if (currentUser.icon) {
const img = document.createElement('img');
img.src = currentUser.icon;
img.className = 'user-icon';
container.appendChild(img);
}
const welcomeDiv = document.createElement('span');
welcomeDiv.textContent = `ようこそ、${currentUser.username} さん!`;
container.appendChild(welcomeDiv);
const logoutBtn = document.createElement('button');
logoutBtn.textContent = 'ログアウト';
logoutBtn.onclick = () => {
addLog(`ユーザー ${currentUser.username} ログアウト`);
currentUser = null;
saveData();
renderAuthSection();
togglePostForm();
renderTimeline();
};
authSection.appendChild(container);
authSection.appendChild(logoutBtn);
} else {
// 未ログイン:ログインフォームを表示
renderLoginForm(authSection);
}
};

const renderLoginForm = (container) => {
container.innerHTML = '<h2>ログイン</h2>';
const usernameInput = document.createElement('input');
usernameInput.type = 'text';
usernameInput.placeholder = 'ユーザー名';
const passwordInput = document.createElement('input');
passwordInput.type = 'password';
passwordInput.placeholder = 'パスワード';
const loginBtn = document.createElement('button');
loginBtn.textContent = 'ログイン';
loginBtn.onclick = () => {
const username = usernameInput.value.trim();
const password = passwordInput.value;
if (!username || !password) { alert('ユーザー名とパスワードを入力してください。'); return; }
const user = users.find(u => u.username === username && u.password === password);
if (user) {
currentUser = user;
saveData();
addLog(`ユーザー ${username} ログイン成功`);
renderAuthSection();
togglePostForm();
renderTimeline();
} else {
alert('ユーザー名またはパスワードが正しくありません。');
}
};
container.appendChild(usernameInput);
container.appendChild(passwordInput);
container.appendChild(loginBtn);
const toggleLink = document.createElement('div');
toggleLink.className = 'toggle-auth';
toggleLink.textContent = '新規登録はこちら';
toggleLink.onclick = () => renderRegisterForm(container);
container.appendChild(toggleLink);
};

const renderRegisterForm = (container) => {
container.innerHTML = '<h2>新規登録</h2>';
const usernameInput = document.createElement('input');
usernameInput.type = 'text';
usernameInput.placeholder = 'ユーザー名';
const passwordInput = document.createElement('input');
passwordInput.type = 'password';
passwordInput.placeholder = 'パスワード';
const confirmInput = document.createElement('input');
confirmInput.type = 'password';
confirmInput.placeholder = 'パスワード確認';
// アイコンアップロード用フィールド
const iconInput = document.createElement('input');
iconInput.type = 'file';
iconInput.accept = 'image/*';
iconInput.style.marginBottom = '10px';
const registerBtn = document.createElement('button');
registerBtn.textContent = '登録';
registerBtn.onclick = () => {
const username = usernameInput.value.trim();
const password = passwordInput.value;
const confirmPassword = confirmInput.value;
if (!username || !password || !confirmPassword) { alert('全ての項目を入力してください。'); return; }
if (password !== confirmPassword) { alert('パスワードが一致しません。'); return; }
if (users.some(u => u.username === username)) { alert('そのユーザー名は既に使用されています。'); return; }
// アイコンが選択されている場合、FileReader で Data URL に変換
if (iconInput.files && iconInput.files[0]) {
const reader = new FileReader();
reader.onload = function(e) {
const iconData = e.target.result;
const newUser = { username, password, icon: iconData };
users.push(newUser);
saveData();
addLog(`ユーザー ${username} 登録完了(アイコン設定済み)`);
alert('登録が完了しました。ログインしてください。');
renderLoginForm(container);
};
reader.readAsDataURL(iconInput.files[0]);
} else {
const newUser = { username, password, icon: '' };
users.push(newUser);
saveData();
addLog(`ユーザー ${username} 登録完了(アイコン未設定)`);
alert('登録が完了しました。ログインしてください。');
renderLoginForm(container);
}
};
container.appendChild(usernameInput);
container.appendChild(passwordInput);
container.appendChild(confirmInput);
container.appendChild(iconInput);
container.appendChild(registerBtn);
const toggleLink = document.createElement('div');
toggleLink.className = 'toggle-auth';
toggleLink.textContent = 'ログインはこちら';
toggleLink.onclick = () => renderLoginForm(container);
container.appendChild(toggleLink);
};

const togglePostForm = () => {
const postFormSection = document.getElementById('postFormSection');
postFormSection.style.display = currentUser ? 'block' : 'none';
};

// === タイムライン&投稿表示 ===
const renderTimeline = () => {
const timeline = document.getElementById('timeline');
timeline.innerHTML = '';
let filteredPosts = posts.slice();
const searchValue = document.getElementById('searchInput').value.trim().toLowerCase();
if (searchValue) {
filteredPosts = filteredPosts.filter(post =>
post.content.toLowerCase().includes(searchValue) ||
post.username.toLowerCase().includes(searchValue)
);
}
// 新しい投稿順にソート
filteredPosts.sort((a, b) => new Date(b.timestamp) - new Date(a.timestamp));
filteredPosts.forEach(post => {
timeline.appendChild(renderPost(post));
});
};

const renderPost = (post) => {
const postDiv = document.createElement('div');
postDiv.className = 'post-item';
postDiv.setAttribute('data-id', post.id);

// ヘッダー(投稿者名&日時)
const headerDiv = document.createElement('div');
headerDiv.className = 'post-header';
const usernameSpan = document.createElement('span');
usernameSpan.className = 'post-username';
usernameSpan.textContent = post.username;
const metaSpan = document.createElement('span');
metaSpan.className = 'post-meta';
metaSpan.textContent = formatDate(post.timestamp);
headerDiv.appendChild(usernameSpan);
headerDiv.appendChild(metaSpan);
postDiv.appendChild(headerDiv);

// 投稿内容(編集モードか通常表示か)
const contentDiv = document.createElement('div');
contentDiv.className = 'post-content';
if (post.editing) {
const editArea = document.createElement('div');
editArea.className = 'edit-area';
const editTextarea = document.createElement('textarea');
editTextarea.value = post.content;
editArea.appendChild(editTextarea);
const saveBtn = document.createElement('button');
saveBtn.textContent = '保存';
saveBtn.onclick = () => {
const newContent = editTextarea.value.trim();
if (!newContent) { alert('投稿内容が空です。'); return; }
post.content = newContent;
post.editing = false;
saveData();
addLog(`投稿 ${post.id} 編集完了`);
renderTimeline();
};
const cancelBtn = document.createElement('button');
cancelBtn.textContent = 'キャンセル';
cancelBtn.style.marginLeft = '5px';
cancelBtn.onclick = () => { post.editing = false; renderTimeline(); };
editArea.appendChild(saveBtn);
editArea.appendChild(cancelBtn);
contentDiv.appendChild(editArea);
} else {
contentDiv.textContent = post.content;
}
postDiv.appendChild(contentDiv);

// アクションボタン(いいね、編集、削除、返信)
const actionsDiv = document.createElement('div');
actionsDiv.className = 'post-actions';
const likeBtn = document.createElement('button');
likeBtn.textContent = `いいね (${post.likes || 0})`;
likeBtn.onclick = () => {
post.likes = (post.likes || 0) + 1;
saveData();
addLog(`投稿 ${post.id} にいいね`);
renderTimeline();
};
actionsDiv.appendChild(likeBtn);

if (currentUser && currentUser.username === post.username) {
const editBtn = document.createElement('button');
editBtn.textContent = '編集';
editBtn.onclick = () => { post.editing = true; renderTimeline(); };
const deleteBtn = document.createElement('button');
deleteBtn.textContent = '削除';
deleteBtn.onclick = () => {
if (confirm('本当に削除しますか?')) {
posts = posts.filter(p => p.id !== post.id);
saveData();
addLog(`投稿 ${post.id} 削除`);
renderTimeline();
}
};
actionsDiv.appendChild(editBtn);
actionsDiv.appendChild(deleteBtn);
}

if (currentUser) {
const replyBtn = document.createElement('button');
replyBtn.textContent = '返信';
replyBtn.onclick = () => toggleReplyForm(post.id);
actionsDiv.appendChild(replyBtn);
}
postDiv.appendChild(actionsDiv);

// 返信一覧表示
const repliesDiv = document.createElement('div');
repliesDiv.className = 'replies';
if (post.replies && post.replies.length > 0) {
post.replies.forEach(reply => {
repliesDiv.appendChild(renderReply(reply));
});
}
postDiv.appendChild(repliesDiv);

// 返信フォーム(初期は非表示)
const replyFormDiv = document.createElement('div');
replyFormDiv.className = 'reply-form';
replyFormDiv.style.display = 'none';
const replyTextarea = document.createElement('textarea');
replyTextarea.placeholder = '返信内容を入力';
const submitReplyBtn = document.createElement('button');
submitReplyBtn.textContent = '返信する';
submitReplyBtn.onclick = () => {
const replyContent = replyTextarea.value.trim();
if (!replyContent) { alert('返信内容が空です。'); return; }
addReply(post.id, replyContent);
replyTextarea.value = '';
toggleReplyForm(post.id, true);
};
replyFormDiv.appendChild(replyTextarea);
replyFormDiv.appendChild(submitReplyBtn);
postDiv.appendChild(replyFormDiv);

return postDiv;
};

const renderReply = (reply) => {
const replyDiv = document.createElement('div');
replyDiv.className = 'reply-item';
const replyHeader = document.createElement('div');
replyHeader.className = 'reply-header';
replyHeader.textContent = reply.username;
const replyContent = document.createElement('div');
replyContent.textContent = reply.content;
const replyMeta = document.createElement('div');
replyMeta.className = 'reply-meta';
replyMeta.textContent = formatDate(reply.timestamp);
replyDiv.appendChild(replyHeader);
replyDiv.appendChild(replyContent);
replyDiv.appendChild(replyMeta);
return replyDiv;
};

const toggleReplyForm = (postId, forceHide = false) => {
const postDiv = document.querySelector(`.post-item[data-id="${postId}"]`);
if (!postDiv) return;
const replyForm = postDiv.querySelector('.reply-form');
replyForm.style.display = (forceHide || replyForm.style.display === 'block') ? 'none' : 'block';
};

const addReply = (postId, replyContent) => {
const post = posts.find(p => p.id === postId);
if (!post) return;
if (!post.replies) { post.replies = []; }
post.replies.push({
id: Date.now(),
username: currentUser.username,
content: replyContent,
timestamp: new Date()
});
saveData();
addLog(`投稿 ${post.id} に返信追加`);
renderTimeline();
};

// === 投稿作成処理 ===
const initPostButton = () => {
document.getElementById('postButton').addEventListener('click', () => {
const postContentElem = document.getElementById('postContent');
const content = postContentElem.value.trim();
if (!content) { alert('投稿内容が空です。'); return; }
const newPost = {
id: Date.now(),
username: currentUser.username,
content: content,
timestamp: new Date(),
likes: 0,
replies: []
};
posts.push(newPost);
saveData();
addLog(`投稿 ${newPost.id} 追加`);
renderTimeline();
postContentElem.value = '';
});
};

// === ユーティリティ処理:ログ/RSS ===
const initUtilityButtons = () => {
document.getElementById('toggleLogsButton').addEventListener('click', () => {
const logsSection = document.getElementById('logsSection');
if (logsSection.style.display === 'none' || logsSection.style.display === '') {
renderLogs();
logsSection.style.display = 'block';
document.getElementById('toggleLogsButton').textContent = 'ログを非表示';
} else {
logsSection.style.display = 'none';
document.getElementById('toggleLogsButton').textContent = 'ログを表示';
}
});
document.getElementById('downloadRSSButton').addEventListener('click', downloadRSS);
};

// === 初期化処理 ===
const init = () => {
loadData();
renderAuthSection();
togglePostForm();
renderTimeline();
initPostButton();
initUtilityButtons();
document.getElementById('searchInput').addEventListener('input', renderTimeline);
};

document.addEventListener('DOMContentLoaded', init);
})();
</script>
</body>
</html>


リアルタイムRSSトレンド.html

<!DOCTYPE html>
<html lang="ja">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>リアルタイムRSSトレンド</title>
    <style>
        body { font-family: Arial, sans-serif; background-color: #f4f4f4; margin: 0; padding: 0; }
        h1 { text-align: center; padding: 20px; background: #333; color: white; }
        #rss-feed { max-width: 800px; margin: 20px auto; padding: 20px; background: white; box-shadow: 0 0 10px rgba(0, 0, 0, 0.1); }
        .article { border-bottom: 1px solid #ccc; padding: 15px; display: flex; flex-direction: column; }
        .article:last-child { border-bottom: none; }
        .article a { text-decoration: none; color: #333; font-weight: bold; font-size: 16px; }
        .article a:hover { color: #007bff; }
        .article p { margin: 5px 0; color: #666; font-size: 14px; }
        .loader { text-align: center; font-size: 18px; color: #666; }
        .refresh-btn { display: block; width: 200px; margin: 20px auto; padding: 10px; background: #007bff; color: white; text-align: center; cursor: pointer; border-radius: 5px; }
        .refresh-btn:hover { background: #0056b3; }
        .error { text-align: center; color: red; font-weight: bold; }
    </style>
</head>
<body>
    <h1>リアルタイムRSSトレンド</h1>
    <div id="rss-feed" class="loader">読み込み中...</div>
    <div class="refresh-btn" onclick="loadRSS()">最新の情報を取得</div>
    <div id="error-message" class="error"></div>
    
    <script>
        async function fetchRSS(url) {
            try {
                const response = await fetch(`https://api.rss2json.com/v1/api.json?rss_url=${encodeURIComponent(url)}`);
                if (!response.ok) throw new Error("RSS取得に失敗しました");
                const data = await response.json();
                return data.items || [];
            } catch (error) {
                console.error("RSSの取得に失敗しました", error);
                return [];
            }
        }

        async function loadRSS() {
            const feedElement = document.getElementById("rss-feed");
            const errorElement = document.getElementById("error-message");
            feedElement.innerHTML = "読み込み中...";
            errorElement.innerHTML = "";
            
            const rssUrls = [
                "https://news.google.com/rss?hl=ja&gl=JP&ceid=JP:ja",
                "https://rss.itmedia.co.jp/rss/2.0/news_bursts.xml",
                "https://www3.nhk.or.jp/rss/news/cat0.xml"
            ];
            
            let allArticles = [];
            for (const url of rssUrls) {
                const articles = await fetchRSS(url);
                allArticles = allArticles.concat(articles);
            }
            
            if (allArticles.length === 0) {
                feedElement.innerHTML = "";
                errorElement.innerHTML = "記事が取得できませんでした。";
                return;
            }
            
            allArticles.sort((a, b) => new Date(b.pubDate) - new Date(a.pubDate));
            feedElement.innerHTML = "";
            
            allArticles.forEach(article => {
                const articleElement = document.createElement("div");
                articleElement.classList.add("article");
                articleElement.innerHTML = `
                    <a href="${article.link}" target="_blank">${article.title}</a>
                    <p>公開日時: ${new Date(article.pubDate).toLocaleString()}</p>
                `;
                feedElement.appendChild(articleElement);
            });
        }
        
        document.addEventListener("DOMContentLoaded", loadRSS);
        setInterval(loadRSS, 300000); // 5分ごとに自動更新
    </script>
</body>
</html>

VRRPG.html

<!DOCTYPE html>
<html lang="ja">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>VRRPG - 拡張版 AR/VR RPG</title>
  <!-- A-Frame ライブラリ -->
  <script src="https://aframe.io/releases/1.4.0/aframe.min.js"></script>
  <!-- Particle system コンポーネント(パーティクル演出用) -->
  <script src="https://cdn.jsdelivr.net/gh/IdeaSpaceVR/aframe-particle-system-component@master/dist/aframe-particle-system-component.min.js"></script>
  <style>
    body { margin: 0; overflow: hidden; }
    /* 各種オーバーレイ */
    #mainMenuOverlay, #upgradeOverlay, #pauseOverlay, #gameOverOverlay {
      position: absolute;
      top: 0; left: 0;
      width: 100%; height: 100%;
      background: rgba(0,0,0,0.8);
      color: #FFF;
      display: flex;
      justify-content: center;
      align-items: center;
      font-size: 48px;
      z-index: 999;
      display: none;
      text-align: center;
      flex-direction: column;
    }
    #mainMenuOverlay button, #upgradeOverlay button, #gameOverOverlay button {
      font-size: 36px;
      padding: 20px 40px;
      margin-top: 20px;
    }
  </style>
</head>
<body>
  <!-- メインメニュー -->
  <div id="mainMenuOverlay" style="display: flex;">
    <div>
      <div>VRRPG - 拡張版 AR/VR RPG</div>
      <button id="startButton">Start Game</button>
    </div>
  </div>
  <!-- アップグレードストア -->
  <div id="upgradeOverlay">
    <div>
      <div>Upgrade Store</div>
      <div>Press 1: Increase Sword Damage (+10) (Cost: 50 Score)</div>
      <div>Press 2: Increase Max Health (+20) (Cost: 50 Score)</div>
      <button id="closeUpgrade">Close</button>
    </div>
  </div>
  <!-- ポーズオーバーレイ -->
  <div id="pauseOverlay">Paused</div>
  <!-- ゲームオーバーオーバーレイ -->
  <div id="gameOverOverlay">
    <div>
      <div>Game Over!</div>
      <div id="finalScore">Final Score: 0</div>
      <button id="restartButton">Restart</button>
    </div>
  </div>

  <!-- AR/VRシーン:XRモードを AR に設定(Oculusパススルー利用) -->
  <a-scene xr="mode: ar; referenceSpaceType: local-floor">
    <!-- 背景音楽 -->
    <a-entity id="bg-music" sound="src: url(bg-music.mp3); autoplay: true; loop: true; volume: 0.3"></a-entity>
    <!-- 環境 -->
    <a-sky color="#88ccee"></a-sky>
    <a-plane position="0 0 0" rotation="-90 0 0" width="30" height="30" color="#77aa55"></a-plane>
    <a-light type="directional" intensity="0.8" position="0 10 5"></a-light>

    <!-- プレイヤー(カメラ、HUD、ポーズ対応) -->
    <a-entity id="player" weapon-switcher position="0 1.6 5">
      <a-camera wasd-controls look-controls>
        <!-- 右手:カメラ内右下に固定表示(装備品) -->
        <a-entity id="rightHand" position="0.5 -0.3 -1"></a-entity>
      </a-camera>
      <!-- HUD -->
      <a-entity id="hud" position="0 -0.5 -1.5">
        <a-text id="scoreText" value="Score: 0" position="-1 0.7 0" color="#FFF" width="4"></a-text>
        <a-text id="healthText" value="Health: 100" position="-1 0.4 0" color="#FFF" width="4"></a-text>
        <a-text id="waveText" value="Wave: 1" position="-1 0.1 0" color="#FFF" width="4"></a-text>
        <a-text id="levelText" value="Lv: 1 Exp: 0" position="-1 -0.2 0" color="#FFF" width="4"></a-text>
        <a-text id="weaponText" value="Weapon: None" position="-1 -0.5 0" color="#FFF" width="4"></a-text>
      </a-entity>
    </a-entity>

    <!-- 落ちている剣(Sword) -->
    <a-entity id="sword" position="0.3 1 -2" sword-swing pickup>
      <!-- ブレード -->
      <a-entity geometry="primitive: box; height: 1; width: 0.1; depth: 0.05" 
                material="color: silver; metalness: 0.8; roughness: 0.2" 
                position="0 0.5 0"></a-entity>
      <!-- ガード -->
      <a-entity geometry="primitive: box; height: 0.2; width: 0.3; depth: 0.05" 
                material="color: gold" 
                position="0 0.05 0"></a-entity>
      <!-- ハンドル -->
      <a-entity geometry="primitive: cylinder; radius: 0.05; height: 0.4" 
                material="color: brown" 
                position="0 -0.3 0" rotation="90 0 0"></a-entity>
      <!-- 回転アニメーション(拾われるまで) -->
      <a-animation attribute="rotation" dur="3000" fill="forwards" to="0 360 0" repeat="indefinite"></a-animation>
    </a-entity>

    <!-- 魔法の杖(Magic Wand) ※ 未使用 -->
    <a-entity id="magicWand" geometry="primitive: cylinder; height: 0.8; radius: 0.05" 
              material="color: purple; emissive: #aa00ff" 
              position="0.3 1 -0.5" rotation="0 0 0" wand-fire visible="false"></a-entity>

    <!-- 敵スポーン用エリア -->
    <a-entity id="enemy-spawn"></a-entity>

    <!-- サウンド設定 -->
    <a-entity id="sword-sound" sound="src: url(sword-swing.mp3); on: none"></a-entity>
    <a-entity id="pickup-sound" sound="src: url(pickup.mp3); on: none"></a-entity>
    <a-entity id="wand-sound" sound="src: url(wand-fire.mp3); on: none"></a-entity>

    <!-- インストラクション表示(初回のみ) -->
    <a-entity id="instructions" position="0 2 -3">
      <a-text value="Controls: Oculus Touch / Gamepad / WASD+Mouse&#10;クリックで剣を拾い、剣をクリックで振る&#10;Pキーでポーズ / Uキーでアップグレード" 
              align="center" color="#FFF" width="6"></a-text>
    </a-entity>

    <!-- ウェーブ管理 -->
    <a-entity wave-manager></a-entity>
  </a-scene>

  <script>
    /************ ゲームデータ管理 ************/
    var gameData = {
      score: 0,
      playerHealth: 100,
      wave: 1,
      playerLevel: 1,
      experience: 0,
      currentWeapon: "None",
      swordDamage: 50,
      maxHealth: 100,
      hasSword: false,
      paused: false,
      gameState: "menu" // "menu", "playing", "paused", "gameover"
    };

    /************ HUD 更新関数 ************/
    function updateHUD() {
      document.querySelector('#scoreText').setAttribute('value', 'Score: ' + gameData.score);
      document.querySelector('#healthText').setAttribute('value', 'Health: ' + gameData.playerHealth);
      document.querySelector('#waveText').setAttribute('value', 'Wave: ' + gameData.wave);
      document.querySelector('#levelText').setAttribute('value', 'Lv: ' + gameData.playerLevel + ' Exp: ' + gameData.experience);
      document.querySelector('#weaponText').setAttribute('value', 'Weapon: ' + gameData.currentWeapon);
    }

    /************ ゲームオーバーチェック ************/
    function checkGameOver() {
      if (gameData.playerHealth <= 0) {
        gameData.gameState = "gameover";
        document.getElementById('gameOverOverlay').style.display = "flex";
        document.getElementById('finalScore').innerText = "Final Score: " + gameData.score;
      }
    }

    /************ 経験値加算&レベルアップ ************/
    function addExperience(exp) {
      gameData.experience += exp;
      if (gameData.experience >= 100) {
        gameData.experience -= 100;
        gameData.playerLevel++;
        gameData.playerHealth = Math.min(gameData.maxHealth, gameData.playerHealth + 20);
        openUpgradeStore();
      }
      updateHUD();
    }

    /************ 敵撃破時の演出 ************/
    function killEnemy(enemy) {
      if (!enemy) return;
      let healthBar = enemy.querySelector('.health-bar');
      if (healthBar) { healthBar.parentNode.removeChild(healthBar); }
      let explosion = document.createElement('a-entity');
      explosion.setAttribute('particle-system', 'preset: dust; particleCount: 100; color: #FFAA00, #FF0000;');
      explosion.setAttribute('position', enemy.getAttribute('position'));
      enemy.parentNode.appendChild(explosion);
      setTimeout(function(){ if(explosion.parentNode) explosion.parentNode.removeChild(explosion); }, 1000);
      enemy.setAttribute('animation', 'property: scale; to: 0 0 0; dur: 500; easing: easeInOutQuad');
      setTimeout(function(){ if(enemy.parentNode) enemy.parentNode.removeChild(enemy); }, 500);
    }

    /************ カメラシェイク ************/
    function cameraShake() {
      let camera = document.querySelector('a-camera');
      if (!camera) return;
      let origPos = camera.getAttribute('position');
      let shakePos = {
        x: origPos.x + (Math.random()-0.5)*0.1,
        y: origPos.y + (Math.random()-0.5)*0.1,
        z: origPos.z
      };
      camera.setAttribute('position', shakePos);
      setTimeout(function(){ camera.setAttribute('position', origPos); }, 100);
    }

    /************ アップグレードストア ************/
    function openUpgradeStore() {
      document.getElementById('upgradeOverlay').style.display = "flex";
      gameData.paused = true;
    }
    function closeUpgradeStore() {
      document.getElementById('upgradeOverlay').style.display = "none";
      gameData.paused = false;
    }
    document.getElementById('closeUpgrade').addEventListener('click', closeUpgradeStore);

    /************ メインメニュー&リスタート ************/
    document.getElementById('startButton').addEventListener('click', function(){
      document.getElementById('mainMenuOverlay').style.display = "none";
      gameData.gameState = "playing";
    });
    document.getElementById('restartButton').addEventListener('click', function(){
      window.location.reload();
    });

    /************ キー操作 ************/
    document.addEventListener('keydown', function(e) {
      if(e.key.toLowerCase() === 'p') {
        gameData.paused = !gameData.paused;
        document.getElementById('pauseOverlay').style.display = gameData.paused ? "flex" : "none";
      }
      if(e.key === 'u' && gameData.gameState === "playing" && !gameData.paused) {
        openUpgradeStore();
      }
      if(document.getElementById('upgradeOverlay').style.display === "flex") {
        if(e.key === '1') {
          if(gameData.score >= 50) {
            gameData.swordDamage += 10;
            gameData.score -= 50;
            updateHUD();
          }
        }
        if(e.key === '2') {
          if(gameData.score >= 50) {
            gameData.maxHealth += 20;
            gameData.score -= 50;
            updateHUD();
          }
        }
      }
    });

    /************ pickup コンポーネント ************/
    AFRAME.registerComponent('pickup', {
      init: function() {
        let el = this.el;
        el.addEventListener('click', function () {
          if(gameData.paused || gameData.gameState !== "playing") return;
          let player = document.querySelector('#player');
          let playerPos = new THREE.Vector3();
          player.object3D.getWorldPosition(playerPos);
          let itemPos = new THREE.Vector3();
          el.object3D.getWorldPosition(itemPos);
          if(playerPos.distanceTo(itemPos) < 2) {
            if(!gameData.hasSword) {
              let pickupSound = document.querySelector('#pickup-sound');
              if(pickupSound && pickupSound.components.sound) {
                pickupSound.components.sound.playSound();
              }
              let rightHand = document.querySelector('#rightHand');
              if(rightHand) {
                rightHand.appendChild(el);
                el.setAttribute('position', '0 0 0');
              } else {
                player.appendChild(el);
                el.setAttribute('position', '0.3 0 -0.5');
              }
              gameData.currentWeapon = "Sword";
              gameData.hasSword = true;
              updateHUD();
              console.log("Sword picked up!");
              el.removeAttribute('animation');
            } else {
              console.log("Already holding a sword.");
            }
          }
        });
      }
    });

    /************ enemy-ai コンポーネント ************/
    AFRAME.registerComponent('enemy-ai', {
      schema: {
        speed: {type: 'number', default: 0.02},
        damage: {type: 'number', default: 5}
      },
      init: function() { this.attackCooldown = 0; },
      tick: function(time, timeDelta) {
        if(gameData.paused) return;
        let player = document.querySelector('#player');
        if(!player) return;
        let enemy = this.el;
        let enemyPos = enemy.object3D.position;
        let playerPos = player.object3D.position;
        let direction = new THREE.Vector3().subVectors(playerPos, enemyPos);
        let distance = direction.length();
        if(distance > 0.1) {
          direction.normalize();
          enemy.object3D.position.add(direction.multiplyScalar(this.data.speed * (timeDelta/16)));
        }
        if(distance < 1 && this.attackCooldown <= 0) {
          gameData.playerHealth -= this.data.damage;
          updateHUD();
          cameraShake();
          checkGameOver();
          this.attackCooldown = 1000;
        } else {
          this.attackCooldown -= timeDelta;
        }
      }
    });

    /************ enemy-health コンポーネント ************/
    AFRAME.registerComponent('enemy-health', {
      schema: {
        hp: {type: 'number', default: 100},
        maxHp: {type: 'number', default: 100}
      },
      init: function(){
        let bar = document.createElement('a-plane');
        bar.setAttribute('class', 'health-bar');
        bar.setAttribute('width', '1');
        bar.setAttribute('height', '0.1');
        bar.setAttribute('color', 'green');
        bar.setAttribute('position', '0 0.8 0');
        this.el.appendChild(bar);
      },
      updateHealthBar: function(){
        let healthBar = this.el.querySelector('.health-bar');
        if(healthBar) {
          let hp = this.data.hp, max = this.data.maxHp;
          let scaleX = Math.max(0, hp/max);
          healthBar.setAttribute('scale', `${scaleX} 1 1`);
          let color = (scaleX > 0.5) ? "green" : (scaleX > 0.2 ? "yellow" : "red");
          healthBar.setAttribute('color', color);
        }
      }
    });

    /************ sword-swing コンポーネント ************/
    AFRAME.registerComponent('sword-swing', {
      init: function(){
        let sword = this.el;
        let self = this;
        sword.addEventListener('triggerdown', function(){ self.swing(); });
        sword.addEventListener('click', function(){ self.swing(); });
      },
      swing: function(){
        if(gameData.paused) return;
        this.el.emit('swing');
        let soundEl = document.querySelector('#sword-sound');
        if(soundEl && soundEl.components.sound){
          soundEl.components.sound.playSound();
        }
        let swordPos = new THREE.Vector3();
        this.el.object3D.getWorldPosition(swordPos);
        let enemies = document.querySelectorAll('.enemy');
        enemies.forEach(function(enemy){
          let enemyPos = new THREE.Vector3();
          enemy.object3D.getWorldPosition(enemyPos);
          if(swordPos.distanceTo(enemyPos) < 1){
            let eh = enemy.getAttribute('enemy-health');
            eh.hp -= gameData.swordDamage;
            enemy.setAttribute('enemy-health', 'hp', eh.hp);
            enemy.components['enemy-health'].updateHealthBar();
            if(eh.hp <= 0){
              killEnemy(enemy);
              gameData.score += 10;
              addExperience(20);
            } else {
              enemy.setAttribute('material', 'color', '#ff4444');
              setTimeout(function(){ enemy.setAttribute('material', 'color', '#66ff66'); }, 200);
            }
            updateHUD();
          }
        });
      }
    });

    /************ wand-fire コンポーネント ************/
    AFRAME.registerComponent('wand-fire', {
      init: function(){
        let wand = this.el;
        let self = this;
        wand.addEventListener('triggerdown', function(){ self.fire(); });
        wand.addEventListener('click', function(){ self.fire(); });
      },
      fire: function(){
        if(gameData.paused) return;
        let wandSound = document.querySelector('#wand-sound');
        if(wandSound && wandSound.components.sound){
          wandSound.components.sound.playSound();
        }
        let projectile = document.createElement('a-sphere');
        projectile.setAttribute('radius', '0.1');
        projectile.setAttribute('color', 'orange');
        let startPos = new THREE.Vector3();
        this.el.object3D.getWorldPosition(startPos);
        projectile.setAttribute('position', startPos);
        projectile.setAttribute('projectile', '');
        this.el.sceneEl.appendChild(projectile);
      }
    });

    /************ projectile コンポーネント ************/
    AFRAME.registerComponent('projectile', {
      schema: { speed: {type: 'number', default: 0.1}, damage: {type: 'number', default: 30} },
      init: function(){
        this.direction = new THREE.Vector3();
        this.el.object3D.getWorldDirection(this.direction);
      },
      tick: function(time, timeDelta){
        if(gameData.paused) return;
        let distance = this.data.speed * (timeDelta/16);
        this.el.object3D.position.add(this.direction.clone().multiplyScalar(distance));
        let projectilePos = new THREE.Vector3();
        this.el.object3D.getWorldPosition(projectilePos);
        let enemies = document.querySelectorAll('.enemy');
        for(let i=0; i<enemies.length; i++){
          let enemy = enemies[i];
          let enemyPos = new THREE.Vector3();
          enemy.object3D.getWorldPosition(enemyPos);
          if(projectilePos.distanceTo(enemyPos) < 0.5){
            let eh = enemy.getAttribute('enemy-health');
            eh.hp -= this.data.damage;
            enemy.setAttribute('enemy-health', 'hp', eh.hp);
            enemy.components['enemy-health'].updateHealthBar();
            if(eh.hp <= 0){
              killEnemy(enemy);
              gameData.score += 10;
              addExperience(20);
            } else {
              enemy.setAttribute('material', 'color', '#ff4444');
              setTimeout(function(){ enemy.setAttribute('material', 'color', '#66ff66'); }, 200);
            }
            updateHUD();
            this.el.parentNode.removeChild(this.el);
            return;
          }
        }
        if(projectilePos.length() > 50){
          this.el.parentNode.removeChild(this.el);
        }
      }
    });

    /************ weapon-switcher コンポーネント ************/
    AFRAME.registerComponent('weapon-switcher', {
      init: function(){
        window.addEventListener('keydown', function(event){
          if(event.key === '1'){
            if(gameData.hasSword){
              gameData.currentWeapon = "Sword";
              document.querySelector('#rightHand').setAttribute('visible', 'true');
              document.querySelector('#magicWand').setAttribute('visible', 'false');
            }
            updateHUD();
          } else if(event.key === '2'){
            gameData.currentWeapon = "Magic";
            document.querySelector('#sword').setAttribute('visible', 'false');
            document.querySelector('#magicWand').setAttribute('visible', 'true');
            updateHUD();
          }
        });
      }
    });

    /************ wave-manager コンポーネント ************/
    // 敵が全滅したら次のウェーブを生成。ウェーブ番号が5の倍数の場合はボス出現。
    AFRAME.registerComponent('wave-manager', {
      tick: function(){
        if(gameData.paused) return;
        let spawnZone = document.querySelector('#enemy-spawn');
        if(spawnZone.children.length === 0){
          gameData.wave += 1;
          updateHUD();
          this.spawnWave();
        }
      },
      spawnWave: function(){
        let spawnZone = document.querySelector('#enemy-spawn');
        if(gameData.wave % 5 === 0){
          // ボスウェーブ
          let boss = document.createElement('a-entity');
          boss.classList.add('enemy');
          boss.setAttribute('position', '0 1 -6');
          boss.setAttribute('geometry', 'primitive: sphere; radius: 1');
          boss.setAttribute('material', 'color: #aa0000; opacity: 0.9; transparent: true');
          boss.setAttribute('animation__rotate', 'property: rotation; to: 0 360 0; dur: 6000; loop: true');
          boss.setAttribute('enemy-ai', 'speed: 0.015; damage: 10');
          boss.setAttribute('enemy-health', 'hp: 300; maxHp: 300');
          spawnZone.appendChild(boss);
        } else {
          let enemyCount = 3 + gameData.wave - 1;
          for(let i=0; i<enemyCount; i++){
            let enemy = document.createElement('a-entity');
            enemy.classList.add('enemy');
            let angle = Math.random() * Math.PI * 2;
            let radius = 5 + Math.random() * 5;
            let x = Math.cos(angle) * radius;
            let z = Math.sin(angle) * radius;
            enemy.setAttribute('position', `${x} 1 ${z}`);
            enemy.setAttribute('geometry', 'primitive: sphere; radius: 0.5');
            enemy.setAttribute('material', 'color: #66ff66; opacity: 0.8; transparent: true');
            enemy.setAttribute('animation__wobble', 'property: scale; to: 1.1 0.9 1.1; dur: 1000; dir: alternate; loop: true');
            enemy.setAttribute('enemy-ai', 'speed: 0.02; damage: 5');
            enemy.setAttribute('enemy-health', 'hp: 100; maxHp: 100');
            spawnZone.appendChild(enemy);
          }
        }
      }
    });

    /************ 初回 HUD 更新 & インストラクション削除 ************/
    document.addEventListener('DOMContentLoaded', function(){
      updateHUD();
      setTimeout(function(){
        let instructions = document.getElementById('instructions');
        if(instructions){ instructions.parentNode.removeChild(instructions); }
      }, 5000);
    });
  </script>
</body>
</html>

Go言語 ジェネリクス

package main

import "fmt"

// func showIntThreeTimes(num int) {
//     fmt.Println(num)
//     fmt.Println(num)
//     fmt.Println(num)
// }

// func showFloat64ThreeTimes(num float64) {
//     fmt.Println(num)
//     fmt.Println(num)
//     fmt.Println(num)
// }

func showThreeTimes[T any](num T) {
    fmt.Println(num)
    fmt.Println(num)
    fmt.Println(num)
}

func main() {
    // showIntThreeTimes(3)
    // showFloat64ThreeTimes(5.2)
    showThreeTimes(3)
    showThreeTimes(5.2)
}

UE5でマップを平たくする方法

UE5でマップを平たくする方法はいくつかありますが、用途に応じて以下の方法を試してください。


ランドスケープを平らにする

ランドスケープを使用している場合、以下の手順で平坦化できます。

  1. [モード] → [ランドスケープ] を開く。
  2. [スカルプト] モード に切り替える。
  3. ツールから [Flatten(平坦化)] を選択
  4. ブラシサイズを調整 して、なだらかに整える。
  5. 必要に応じて「ターゲット値(Target Value)」を設定し、均一な高さにする。

既存のオブジェクトを平らにする

Static Mesh などのオブジェクトを平らにしたい場合は:

  • スケールを調整(Z軸のスケールを小さくする)。
  • モデルをエディタで編集(Static Mesh Editorで頂点編集する)。
  • ボックスコリジョンを利用(コリジョンを追加して物理的に平らに見せる)。

ワールドの高さを統一する

「ワールドの高さを揃えたい」場合は、オブジェクトのZ座標を統一する:

  1. オブジェクトをすべて選択
  2. [詳細] パネルで Z 座標を統一(例:Z = 0 にする)。
  3. 「スナップ機能」をオンにして調整(Ctrl + Endでグリッドに揃える)。

ランドスケープをリセットする

マップを完全にリセットして平らにしたい場合は:

  1. ランドスケープを削除(選択してDelete)。
  2. 新規ランドスケープを作成(最初から平らな状態で生成)。
  3. 必要に応じて「マテリアル」「コリジョン」を設定。