FlyCharts/loadingbar.html at main · NitricAcidDev/FlyCharts · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Fly Charts</title>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/socket.io/4.7.5/socket.io.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.9.4/leaflet.min.js"></script>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.9.4/leaflet.min.css" />
    <style>
        body, html {
            margin: 0;
            padding: 0;
            height: 100%;
            overflow: hidden;
            font-family: Arial, sans-serif;
        }
        #map {
            width: 100%;
            height: 100%;
            position: relative;
            z-index: 1;
        }
        #loading-screen {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: #0e0e0e;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: white;
            z-index: 1000;
            transition: opacity 0.5s;
        }
        #loading-screen.hidden {
            opacity: 0;
            pointer-events: none;
        }
        #logo-container {
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }
        #logo-img {
            width: 230px;
            height: auto;
            filter: invert(100%) sepia(100%) saturate(500%) hue-rotate(180deg);
            margin-right: 20px;
        }
        #logo-text {
            font-size: 96px;
            font-weight: bold;
        }
        #progress-bar-container {
            width: 80vw;
            height: 30px;
            background: #001b35;
            border-radius: 15px;
            overflow: hidden;
        }
        #progress-bar {
            width: 0;
            height: 100%;
            background: #ae00ff;
            transition: width 0.3s ease-in-out;
        }
        #status-message {
            margin-top: 20px;
            font-size: 24px;
            text-align: center;
        }
        #aircraft-marker {
            width: 20px;
            height: 20px;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="red"><path d="M12 2L2 9h4v6h4v4l2 2 2-2v-4h4V9h4z"/></svg>') no-repeat center;
            background-size: contain;
            transform: translate(-50%, -50%);
        }
    </style>
</head>
<body>
    <div id="loading-screen">
        <div id="logo-container">
            <img id="logo-img" src="image/airplaneoutline.svg" alt="Fly Charts Logo">
            <span id="logo-text">Fly Charts</span>
        </div>
        <div id="progress-bar-container">
            <div id="progress-bar"></div>
        </div>
        <div id="status-message">Initializing...</div>
    </div>
    <div id="map"></div>
    <script>
        // Initialize Socket.IO
        const socket = io('http://localhost:5500');

        // Initialize Leaflet map with performance optimizations
        const map = L.map('map', {
            zoomControl: true,
            attributionControl: false,
            preferCanvas: true,
            renderer: L.canvas(),
            zoomAnimationThreshold: 4,
            fadeAnimation: false,
            maxBoundsViscosity: 1.0
        });

        // Debounce function for zoom events
        function debounce(func, wait) {
            let timeout;
            return function executedFunction(...args) {
                const later = () => {
                    clearTimeout(timeout);
                    func(...args);
                };
                clearTimeout(timeout);
                timeout = setTimeout(later, wait);
            };
        }

        // Tile layer with optimized settings
        L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
            maxZoom: 19,
            tileSize: 256,
            zoomOffset: 0,
            updateWhenIdle: true,
            keepBuffer: 4,
            edgeBufferTiles: 2
        }).addTo(map);

        // Aircraft marker
        let aircraftMarker = null;

        // Loading state
        let loadingProgress = 0;
        let totalSteps = 3;
        let statusMessages = {
            0: 'Initializing...',
            1: 'Loading map tiles...',
            2: 'Connecting to SimConnect...',
            3: 'Fetching aircraft data...'
        };

        // Update loading progress
        function updateLoadingProgress(step) {
            loadingProgress = Math.min(step, totalSteps);
            const percentage = (loadingProgress / totalSteps) * 100;
            document.getElementById('progress-bar').style.width = `${percentage}%`;
            document.getElementById('status-message').textContent = statusMessages[loadingProgress] || 'Loading...';
            if (loadingProgress >= totalSteps) {
                setTimeout(() => {
                    document.getElementById('loading-screen').classList.add('hidden');
                }, 500);
            }
        }

        // Initial loading step
        updateLoadingProgress(0);

        // Map tile loading events
        map.on('load', () => {
            updateLoadingProgress(1);
        });

        // Optimize zoom performance
        const debouncedZoom = debounce(() => {
            map._onZoomEnd();
        }, 100);

        map.on('zoomstart', () => {
            map._onZoomStart();
            clearTimeout(map._zoomEndTimeout);
        });

        map.on('zoomend', () => {
            map._zoomEndTimeout = setTimeout(debouncedZoom, 100);
        });

        // Socket.IO event handlers
        socket.on('connect', () => {
            console.log('Connected to WebSocket');
            socket.emit('request_status');
            socket.emit('request_position');
            updateLoadingProgress(2);
        });

        socket.on('simconnect_status', (status) => {
            console.log('SimConnect status:', status);
            if (status.connected && status.last_position) {
                const pos = status.last_position;
                map.setView([pos.latitude, pos.longitude], 10);
                if (!aircraftMarker) {
                    aircraftMarker = L.marker([pos.latitude, pos.longitude], {
                        icon: L.divIcon({
                            className: 'aircraft-marker',
                            html: '<div id="aircraft-marker"></div>',
                            iconSize: [20, 20]
                        })
                    }).addTo(map);
                }
                updateLoadingProgress(3);
            }
        });

        socket.on('aircraft_position_update', (position) => {
            if (position && position.latitude && position.longitude) {
                if (!map.getBounds().isValid()) {
                    map.setView([position.latitude, position.longitude], 10);
                }
                if (aircraftMarker) {
                    aircraftMarker.setLatLng([position.latitude, position.longitude]);
                    aircraftMarker.setRotationAngle(position.heading || 0);
                }
                updateLoadingProgress(3);
            }
        });

        socket.on('disconnect', () => {
            console.log('Disconnected from WebSocket');
            updateLoadingProgress(0);
            document.getElementById('loading-screen').classList.remove('hidden');
        });

        // Initial map setup
        map.setView([0, 0], 2);
    </script>
</body>
</html>