Added speedometer for fun
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Jon
235
speedometer.html
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235
speedometer.html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Speedometer</title>
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<style>
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* { box-sizing: border-box; margin: 0; padding: 0; }
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body {
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background: #000;
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min-height: 100vh;
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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font-family: monospace;
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color: #fff;
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user-select: none;
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}
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#speed-val {
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font-size: clamp(80px, 22vw, 160px);
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font-weight: 700;
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color: #fff;
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line-height: 1;
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text-align: center;
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}
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#speed-unit {
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font-size: clamp(14px, 3vw, 22px);
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color: #aaa;
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letter-spacing: 3px;
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margin-top: 8px;
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text-align: center;
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}
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#gps-info {
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margin-top: 28px;
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text-align: center;
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display: flex;
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flex-direction: column;
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gap: 8px;
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}
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.data-row {
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display: flex;
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gap: 24px;
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justify-content: center;
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flex-wrap: wrap;
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}
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.di {
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font-size: clamp(11px, 2vw, 15px);
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color: #ccc;
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display: flex;
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gap: 6px;
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align-items: center;
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}
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.dl { color: #555; font-size: clamp(9px, 1.5vw, 12px); letter-spacing: 0.5px; }
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.dv { color: #fff; font-weight: 500; }
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#gps-dot {
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width: 8px;
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height: 8px;
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border-radius: 50%;
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background: #555;
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flex-shrink: 0;
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}
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#gps-dot.active { background: #1D9E75; animation: gpsblink 2s infinite; }
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@keyframes gpsblink { 0%,100%{opacity:1} 50%{opacity:0.4} }
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#clock {
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position: fixed;
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top: 14px;
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left: 16px;
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font-size: 16px;
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color: #fff;
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background: rgba(255,255,255,0.07);
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border-radius: 8px;
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padding: 4px 10px;
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letter-spacing: 1px;
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}
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#unit-btn {
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position: fixed;
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top: 14px;
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right: 16px;
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background: rgba(255,255,255,0.1);
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border: 0.5px solid rgba(255,255,255,0.2);
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color: #fff;
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border-radius: 26px;
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padding: 7px 16px;
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font-size: 14px;
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font-family: monospace;
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cursor: pointer;
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letter-spacing: 0.4px;
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}
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#unit-btn:hover { background: rgba(255,255,255,0.2); }
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#fs-btn {
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position: fixed;
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top: 14px;
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left: 50%;
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transform: translateX(-50%);
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background: rgba(255,255,255,0.1);
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border: 0.5px solid rgba(255,255,255,0.2);
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color: #fff;
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border-radius: 26px;
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padding: 7px 16px;
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font-size: 14px;
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font-family: monospace;
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cursor: pointer;
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letter-spacing: 0.4px;
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}
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#fs-btn:hover { background: rgba(255,255,255,0.2); }
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#status {
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position: fixed;
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bottom: 16px;
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left: 50%;
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transform: translateX(-50%);
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font-size: 11px;
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color: rgba(255,255,255,0.35);
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white-space: nowrap;
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}
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</style>
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</head>
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<body>
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<div id="clock">--:--:--</div>
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<button id="fs-btn" onclick="toggleFullscreen()">⛶</button>
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<button id="unit-btn" onclick="toggleUnit()">MPH / KPH</button>
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<div id="speed-val">--</div>
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<div id="speed-unit">MPH</div>
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<div id="gps-info">
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<div class="data-row">
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<div id="gps-dot"></div>
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<div class="di"><span class="dl">LAT</span><span class="dv" id="lat-val">--</span></div>
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<div class="di"><span class="dl">LNG</span><span class="dv" id="lng-val">--</span></div>
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</div>
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<div class="data-row">
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<div class="di"><span class="dl">ALT</span><span class="dv" id="alt-val">--</span></div>
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<div class="di"><span class="dl">ACC</span><span class="dv" id="acc-val">--</span></div>
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<div class="di"><span class="dl">HDG</span><span class="dv" id="hdg-val">--</span></div>
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<div class="di"><span class="dl">DIST</span><span class="dv" id="dist-val">0.00km</span></div>
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</div>
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</div>
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<div id="status">Acquiring GPS...</div>
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<script>
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let useMph = true, watchId = null;
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let lastPos = null, totalDist = 0;
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function pad(v) { return String(Math.floor(v)).padStart(2, '0'); }
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function cvt(ms) { return useMph ? ms * 2.23694 : ms * 3.6; }
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function haversine(a, b) {
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const R = 6371000, r = Math.PI / 180;
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const dLat = (b.lat - a.lat) * r, dLng = (b.lng - a.lng) * r;
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const x = Math.sin(dLat/2)**2 + Math.cos(a.lat*r)*Math.cos(b.lat*r)*Math.sin(dLng/2)**2;
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return R * 2 * Math.atan2(Math.sqrt(x), Math.sqrt(1-x));
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}
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function bearingLabel(deg) {
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if (deg === null || isNaN(deg)) return '--';
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return ['N','NE','E','SE','S','SW','W','NW'][Math.round(deg/45)%8] + ' ' + Math.round(deg) + '\xb0';
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}
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function updateClock() {
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const n = new Date();
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document.getElementById('clock').textContent =
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pad(n.getHours()) + ':' + pad(n.getMinutes()) + ':' + pad(n.getSeconds());
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}
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function toggleUnit() {
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useMph = !useMph;
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document.getElementById('speed-unit').textContent = useMph ? 'MPH' : 'KPH';
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}
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function startGPS() {
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if (!navigator.geolocation) {
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document.getElementById('status').textContent = 'GPS unavailable';
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return;
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}
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watchId = navigator.geolocation.watchPosition(pos => {
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const c = pos.coords;
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const speed = c.speed !== null ? c.speed : 0;
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const conv = cvt(speed);
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document.getElementById('speed-val').textContent = Math.round(conv);
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document.getElementById('lat-val').textContent = c.latitude.toFixed(5);
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document.getElementById('lng-val').textContent = c.longitude.toFixed(5);
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document.getElementById('alt-val').textContent = c.altitude !== null ? Math.round(c.altitude) + 'm' : '--';
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document.getElementById('acc-val').textContent = Math.round(c.accuracy) + 'm';
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document.getElementById('hdg-val').textContent = bearingLabel(c.heading);
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const cur = { lat: c.latitude, lng: c.longitude };
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if (lastPos) { const d = haversine(lastPos, cur); if (d < 200) totalDist += d; }
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lastPos = cur;
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document.getElementById('dist-val').textContent = (totalDist / 1000).toFixed(2) + 'km';
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document.getElementById('gps-dot').className = 'active';
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document.getElementById('status').textContent = '';
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}, err => {
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document.getElementById('status').textContent = 'GPS: ' + err.message;
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document.getElementById('gps-dot').className = '';
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}, { enableHighAccuracy: true, maximumAge: 1000, timeout: 15000 });
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}
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function toggleFullscreen() {
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const btn = document.getElementById('fs-btn');
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if (!document.fullscreenElement) {
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document.documentElement.requestFullscreen().catch(() => {});
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btn.textContent = '✕';
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} else {
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document.exitFullscreen().catch(() => {});
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btn.textContent = '⛶';
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}
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document.addEventListener('fullscreenchange', () => {
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if (!document.fullscreenElement) btn.textContent = '⛶';
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}, { once: true });
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}
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setInterval(updateClock, 1000);
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updateClock();
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startGPS();
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</script>
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</body>
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</html>
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