2026-07-08 01:24:33 +08:00
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const http = require('http');
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const fs = require('fs');
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const path = require('path');
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2026-07-12 19:38:16 +08:00
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const PORT = process.env.PORT || 24710;
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2026-07-12 20:55:44 +08:00
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const HOST = process.env.HOST || '0.0.0.0';
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2026-07-08 01:24:33 +08:00
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const ROOT = __dirname;
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const MIME = {
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'.html': 'text/html; charset=utf-8',
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'.js': 'application/javascript',
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'.wasm': 'application/wasm',
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'.data': 'application/octet-stream',
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'.css': 'text/css',
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'.png': 'image/png',
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'.ico': 'image/x-icon',
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'.svg': 'image/svg+xml',
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'.json': 'application/json',
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'.jpg': 'image/jpeg',
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};
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function extType(p) {
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return MIME[path.extname(p).toLowerCase()] || 'application/octet-stream';
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}
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// 首页：基于原始 index.html，注入启动封面（不修改任何 Unity 加载逻辑）
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function serveIndex(res) {
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try {
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let html = fs.readFileSync(path.join(ROOT, 'index.html'), 'utf-8');
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// 注入到 </head> 之前的 CSS
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const css = `
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<style>
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#landing-overlay {
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position: fixed; inset: 0; z-index: 9999;
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display: flex; flex-direction: column;
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align-items: center; justify-content: center;
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background: radial-gradient(ellipse at center, #2a2526 0%, #1a1516 70%, #0d0a0b 100%);
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transition: opacity 0.5s ease;
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}
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#landing-overlay.hidden { opacity: 0; pointer-events: none; }
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#landing-overlay .logo-area { margin-bottom: 60px; text-align: center; }
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#landing-overlay .logo-area .icon {
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width: 120px; height: 120px; margin: 0 auto 30px;
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background: url('TemplateData/unity-logo-light.png') no-repeat center;
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background-size: contain;
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filter: drop-shadow(0 0 30px rgba(255,255,255,0.15));
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}
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#landing-overlay h1 {
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font-size: clamp(24px, 4vw, 42px);
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font-weight: 700; letter-spacing: 0.08em; color: #fff;
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text-shadow: 0 2px 20px rgba(255,255,255,0.2);
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}
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#landing-overlay .subtitle {
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margin-top: 12px;
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font-size: clamp(14px, 1.8vw, 18px);
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color: rgba(255,255,255,0.45); letter-spacing: 0.15em;
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}
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#landing-btn {
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display: inline-flex; align-items: center; gap: 12px;
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padding: 16px 56px;
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font-size: clamp(16px, 2vw, 20px);
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font-weight: 600; letter-spacing: 0.1em; color: #fff;
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background: linear-gradient(135deg, #4a90d9 0%, #357abd 100%);
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border: none; border-radius: 50px; cursor: pointer;
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transition: transform 0.2s ease, box-shadow 0.2s ease;
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box-shadow: 0 8px 32px rgba(74, 144, 217, 0.35);
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}
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#landing-btn:hover {
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transform: translateY(-2px) scale(1.03);
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box-shadow: 0 12px 40px rgba(74, 144, 217, 0.5);
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}
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#landing-btn:active { transform: translateY(0) scale(0.98); }
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#landing-btn .arrow {
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display: inline-block; font-size: 1.2em;
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transition: transform 0.2s ease;
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}
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#landing-btn:hover .arrow { transform: translateX(4px); }
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#landing-overlay .hint {
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margin-top: 40px; font-size: 13px;
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color: rgba(255,255,255,0.25); letter-spacing: 0.05em;
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}
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</style>`;
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// 注入到 <body> 最前面的 overlay
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const overlay = `
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<div id="landing-overlay">
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<div class="logo-area">
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<div class="icon"></div>
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<h1>运动伤害现场急救虚拟仿真实验</h1>
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<p class="subtitle">VIRTUAL SIMULATION EXPERIMENT</p>
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</div>
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<button id="landing-btn" onclick="enterExperiment()">
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进入全屏实验
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<span class="arrow">→</span>
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</button>
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<p class="hint">点击按钮进入全屏沉浸式实验环境</p>
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</div>`;
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// 注入到 </body> 之前的 JS（不修改原始 Unity 加载逻辑）
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const js = `
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<script>
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(function() {
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var overlay = document.getElementById('landing-overlay');
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window.enterExperiment = function() {
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var el = document.documentElement;
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var requestFS = el.requestFullscreen || el.webkitRequestFullscreen
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|| el.msRequestFullscreen || el.mozRequestFullScreen;
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function go() {
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overlay.classList.add('hidden');
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}
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if (requestFS) {
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requestFS.call(el).then(go).catch(function(err) {
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console.warn('全屏请求失败:', err);
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go();
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});
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} else {
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go();
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}
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};
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})();
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</script>`;
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html = html.replace('</head>', css + '\n</head>');
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html = html.replace('<body>', '<body>\n' + overlay);
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html = html.replace('</body>', js + '\n</body>');
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res.writeHead(200, { 'Content-Type': 'text/html; charset=utf-8' });
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res.end(html);
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} catch (err) {
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res.writeHead(500);
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res.end('Internal Server Error');
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console.error(err);
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}
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}
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// 静态文件
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function serveStatic(req, res) {
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let fp = path.join(ROOT, req.url.split('?')[0]);
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if (!fp.startsWith(ROOT)) { res.writeHead(403); res.end('Forbidden'); return; }
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fs.readFile(fp, (err, data) => {
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if (err) { res.writeHead(404); res.end('Not Found'); return; }
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res.writeHead(200, { 'Content-Type': extType(fp) });
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res.end(data);
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});
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}
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http.createServer((req, res) => {
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if (req.url === '/' || req.url === '/index.html') return serveIndex(res);
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serveStatic(req, res);
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2026-07-12 20:55:44 +08:00
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}).listen(PORT, HOST, () => {
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2026-07-08 01:24:33 +08:00
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console.log('');
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console.log(' ╔══════════════════════════════════════════════════╗');
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console.log(' ║ 运动伤害现场急救虚拟仿真实验 - WebGL Server ║');
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console.log(' ║ ║');
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2026-07-12 20:55:44 +08:00
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console.log(' ║ Server running at: http://' + HOST + ':' + PORT + ' ║');
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2026-07-08 01:24:33 +08:00
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console.log(' ║ Press Ctrl+C to stop ║');
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console.log(' ╚══════════════════════════════════════════════════╝');
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console.log('');
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});
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