249 lines
13 KiB
Dart
249 lines
13 KiB
Dart
import 'dart:async';
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import 'dart:math';
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import 'dart:ui' as ui;
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:google_maps_flutter/google_maps_flutter.dart';
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import 'package:geolocator/geolocator.dart';
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import '../constants/app_colors.dart';
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class GoogleMapScreen extends StatefulWidget {
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const GoogleMapScreen({super.key});
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@override
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State<GoogleMapScreen> createState() => _GoogleMapScreenState();
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}
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class _GoogleMapScreenState extends State<GoogleMapScreen> {
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GoogleMapController? _mapController;
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StreamSubscription<Position>? _positionStreamSubscription;
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Timer? _simulationTimer;
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final List<LatLng> _routePoints = [];
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final Set<Polyline> _polylines = {};
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final Set<Marker> _markers = {};
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LatLng? _plannedStart;
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LatLng? _plannedEnd;
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bool _isPlanningMode = false;
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double _currentSpeed = 0.0;
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double _totalDistance = 0.0;
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LatLng _currentPosition = const LatLng(38.7223, -9.1393);
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bool _isLoading = true;
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bool _isSimulating = false;
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BitmapDescriptor? _startIcon;
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BitmapDescriptor? _arrowIcon;
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BitmapDescriptor? _finishIcon;
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@override
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void initState() {
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super.initState();
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_setupIconsAndTracking();
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}
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Future<void> _setupIconsAndTracking() async {
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_startIcon = await _createPremiumMarker(Colors.greenAccent, Icons.play_arrow_rounded, 85);
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_finishIcon = await _createPremiumMarker(AppColors.coral, Icons.flag_rounded, 85);
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_arrowIcon = await _createArrowMarker(Colors.black, Colors.white, 95);
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await _initTracking();
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}
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Future<BitmapDescriptor> _createPremiumMarker(Color color, IconData icon, double size) async {
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final ui.PictureRecorder recorder = ui.PictureRecorder();
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final Canvas canvas = Canvas(recorder);
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final Paint shadowPaint = Paint()..color = Colors.black.withOpacity(0.4)..maskFilter = const MaskFilter.blur(BlurStyle.normal, 6);
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canvas.drawCircle(Offset(size / 2, size / 2 + 3), size / 2, shadowPaint);
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canvas.drawCircle(Offset(size / 2, size / 2), size / 2, Paint()..color = Colors.white);
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canvas.drawCircle(Offset(size / 2, size / 2), size / 2 - 5, Paint()..color = color);
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TextPainter textPainter = TextPainter(textDirection: TextDirection.ltr);
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textPainter.text = TextSpan(text: String.fromCharCode(icon.codePoint), style: TextStyle(fontSize: size * 0.6, fontFamily: icon.fontFamily, color: Colors.white, fontWeight: FontWeight.bold));
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textPainter.layout();
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textPainter.paint(canvas, Offset((size - textPainter.width) / 2, (size - textPainter.height) / 2));
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final ui.Image image = await recorder.endRecording().toImage(size.toInt(), size.toInt() + 6);
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final ByteData? byteData = await image.toByteData(format: ui.ImageByteFormat.png);
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return BitmapDescriptor.fromBytes(byteData!.buffer.asUint8List());
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}
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Future<BitmapDescriptor> _createArrowMarker(Color color, Color borderColor, double size) async {
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final ui.PictureRecorder recorder = ui.PictureRecorder();
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final Canvas canvas = Canvas(recorder);
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final Path path = Path();
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path.moveTo(size / 2, 0);
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path.lineTo(size * 0.9, size);
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path.lineTo(size / 2, size * 0.7);
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path.lineTo(size * 0.1, size);
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path.close();
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canvas.drawPath(path.shift(const Offset(0, 4)), Paint()..color = Colors.black38..maskFilter = const MaskFilter.blur(BlurStyle.normal, 4));
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canvas.drawPath(path, Paint()..color = color);
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canvas.drawPath(path, Paint()..color = borderColor..style = ui.PaintingStyle.stroke..strokeWidth = 7);
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final ui.Image image = await recorder.endRecording().toImage(size.toInt(), size.toInt() + 6);
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final ByteData? byteData = await image.toByteData(format: ui.ImageByteFormat.png);
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return BitmapDescriptor.fromBytes(byteData!.buffer.asUint8List());
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}
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@override
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void dispose() {
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_positionStreamSubscription?.cancel();
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_simulationTimer?.cancel();
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super.dispose();
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}
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Future<void> _initTracking() async {
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bool serviceEnabled = await Geolocator.isLocationServiceEnabled();
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if (!serviceEnabled) return;
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LocationPermission permission = await Geolocator.checkPermission();
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if (permission == LocationPermission.denied) {
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permission = await Geolocator.requestPermission();
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if (permission == LocationPermission.denied) return;
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}
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Position position = await Geolocator.getCurrentPosition();
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_currentPosition = LatLng(position.latitude, position.longitude);
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setState(() => _isLoading = false);
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_startLocationStream();
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}
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void _startLocationStream() {
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_positionStreamSubscription = Geolocator.getPositionStream(locationSettings: const LocationSettings(accuracy: LocationAccuracy.high, distanceFilter: 5)).listen((Position position) {
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if (!_isSimulating) _updatePosition(LatLng(position.latitude, position.longitude), position.speed);
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});
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}
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void _updatePosition(LatLng newPoint, double speed) {
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setState(() {
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if (_routePoints.isNotEmpty) {
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_totalDistance += Geolocator.distanceBetween(_currentPosition.latitude, _currentPosition.longitude, newPoint.latitude, newPoint.longitude);
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}
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_currentSpeed = speed;
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_routePoints.add(newPoint);
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_currentPosition = newPoint;
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// Update only the dynamic follower arrow
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_markers.removeWhere((m) => m.markerId.value == 'follower');
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_markers.add(Marker(
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markerId: const MarkerId('follower'),
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position: _currentPosition,
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rotation: _calculateRotation(_routePoints),
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flat: true,
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anchor: const Offset(0.5, 0.5),
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icon: _arrowIcon ?? BitmapDescriptor.defaultMarker,
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zIndex: 12,
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));
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if (_routePoints.length > 1) {
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_polylines.removeWhere((p) => p.polylineId.value == 'route' || p.polylineId.value == 'route_glow');
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_polylines.add(Polyline(
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polylineId: const PolylineId('route_glow'),
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points: List.from(_routePoints),
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color: Colors.lightBlueAccent.withOpacity(0.3),
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width: 14,
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zIndex: 9,
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));
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_polylines.add(Polyline(
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polylineId: const PolylineId('route'),
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points: List.from(_routePoints),
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color: Colors.white,
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width: 6,
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patterns: [PatternItem.dot, PatternItem.gap(15)],
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jointType: JointType.round,
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zIndex: 10,
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));
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}
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});
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_mapController?.animateCamera(CameraUpdate.newLatLng(newPoint));
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}
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double _calculateRotation(List<LatLng> points) {
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if (points.length < 2) return 0;
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LatLng p1 = points[points.length - 2];
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LatLng p2 = points.last;
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return Geolocator.bearingBetween(p1.latitude, p1.longitude, p2.latitude, p2.longitude);
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}
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void _onMapTap(LatLng point) {
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if (!_isPlanningMode) return;
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setState(() {
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if (_plannedStart == null) {
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_plannedStart = point;
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_markers.add(Marker(markerId: const MarkerId('planned_start'), position: point, icon: _startIcon ?? BitmapDescriptor.defaultMarker, zIndex: 5));
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} else if (_plannedEnd == null) {
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_plannedEnd = point;
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_markers.add(Marker(markerId: const MarkerId('planned_end'), position: point, icon: _finishIcon ?? BitmapDescriptor.defaultMarker, zIndex: 5));
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_polylines.add(Polyline(polylineId: const PolylineId('planned_route'), points: [_plannedStart!, _plannedEnd!], color: Colors.white.withOpacity(0.1), width: 2, zIndex: 1));
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} else {
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_plannedStart = point;
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_plannedEnd = null;
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_markers.removeWhere((m) => m.markerId.value.startsWith('planned'));
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_polylines.removeWhere((p) => p.polylineId.value == 'planned_route');
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_markers.add(Marker(markerId: const MarkerId('planned_start'), position: point, icon: _startIcon ?? BitmapDescriptor.defaultMarker, zIndex: 5));
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}
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});
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}
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void _toggleSimulation() {
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if (_isSimulating) {
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_simulationTimer?.cancel();
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setState(() => _isSimulating = false);
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} else {
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setState(() {
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_isSimulating = true;
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_isPlanningMode = false;
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_routePoints.clear();
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_polylines.removeWhere((p) => p.polylineId.value == 'route' || p.polylineId.value == 'route_glow');
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_totalDistance = 0.0;
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// Start from planned start OR current real location
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_currentPosition = _plannedStart ?? _currentPosition;
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// Initialize routePoints with the start so the arrow appears immediately at the start point
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_routePoints.add(_currentPosition);
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// Update only the follower arrow. Planned markers are already in the set.
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_markers.removeWhere((m) => m.markerId.value == 'follower');
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_markers.add(Marker(
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markerId: const MarkerId('follower'),
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position: _currentPosition,
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flat: true,
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anchor: const Offset(0.5, 0.5),
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icon: _arrowIcon ?? BitmapDescriptor.defaultMarker,
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zIndex: 12,
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));
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});
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_simulationTimer = Timer.periodic(const Duration(seconds: 1), (timer) {
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double latStep = 0.00025;
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double lngStep = 0.00025;
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if (_plannedEnd != null) {
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double dist = Geolocator.distanceBetween(_currentPosition.latitude, _currentPosition.longitude, _plannedEnd!.latitude, _plannedEnd!.longitude);
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if (dist < 12) {
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_updatePosition(_plannedEnd!, 0.0);
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_toggleSimulation();
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return;
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}
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latStep = (_plannedEnd!.latitude - _currentPosition.latitude) / (max(dist / 8, 1));
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lngStep = (_plannedEnd!.longitude - _currentPosition.longitude) / (max(dist / 8, 1));
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}
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LatLng nextPoint = LatLng(_currentPosition.latitude + latStep, _currentPosition.longitude + lngStep);
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_updatePosition(nextPoint, 3.5 + Random().nextDouble());
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});
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}
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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backgroundColor: AppColors.background,
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appBar: AppBar(title: Text(_isPlanningMode ? 'PLANEJAR ROTA' : 'CORRIDA VIVA', style: const TextStyle(fontWeight: FontWeight.w900, color: Colors.white, letterSpacing: 2)), centerTitle: true, backgroundColor: Colors.transparent, elevation: 0, leading: IconButton(icon: const Icon(Icons.arrow_back_ios_new, color: Colors.white), onPressed: () => Navigator.pop(context)), actions: [IconButton(icon: Icon(_isPlanningMode ? Icons.check_circle_rounded : Icons.add_location_alt_rounded, color: AppColors.coral, size: 30), onPressed: () => setState(() => _isPlanningMode = !_isPlanningMode))]),
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extendBodyBehindAppBar: true,
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body: Stack(children: [Center(child: Container(width: MediaQuery.of(context).size.width * 0.94, height: MediaQuery.of(context).size.height * 0.7, decoration: BoxDecoration(color: AppColors.backgroundGrey, borderRadius: BorderRadius.circular(55), border: Border.all(color: Colors.white.withOpacity(0.1), width: 3), boxShadow: [BoxShadow(color: Colors.black.withOpacity(0.7), blurRadius: 50, offset: const Offset(0, 30))]), child: ClipRRect(borderRadius: BorderRadius.circular(52), child: _isLoading ? const Center(child: CircularProgressIndicator(color: AppColors.coral)) : GoogleMap(initialCameraPosition: CameraPosition(target: _currentPosition, zoom: 17.5), onMapCreated: (controller) => _mapController = controller, onTap: _onMapTap, markers: _markers, polylines: _polylines, zoomControlsEnabled: false, myLocationButtonEnabled: false, compassEnabled: false, mapToolbarEnabled: false)))), Positioned(top: 115, left: 45, right: 45, child: Container(padding: const EdgeInsets.symmetric(vertical: 20, horizontal: 25), decoration: BoxDecoration(color: AppColors.background.withOpacity(0.95), borderRadius: BorderRadius.circular(25), border: Border.all(color: Colors.white10), boxShadow: [BoxShadow(color: Colors.black26, blurRadius: 10)]), child: Row(mainAxisAlignment: MainAxisAlignment.spaceAround, children: [_buildStat("RITMO", "${(_currentSpeed * 3.6).toStringAsFixed(1)}", "KM/H"), Container(width: 1, height: 35, color: Colors.white10), _buildStat("TRAJETO", (_totalDistance / 1000).toStringAsFixed(2), "KM")]))), if (_isPlanningMode) Positioned(bottom: 140, left: 60, right: 60, child: Container(padding: const EdgeInsets.all(12), decoration: BoxDecoration(color: Colors.black.withOpacity(0.85), borderRadius: BorderRadius.circular(20), border: Border.all(color: AppColors.coral.withOpacity(0.5))), child: const Text("Toque para definir Início e Fim", textAlign: TextAlign.center, style: TextStyle(color: Colors.white, fontSize: 13, fontWeight: FontWeight.bold))))]),
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floatingActionButton: FloatingActionButton.extended(onPressed: _toggleSimulation, label: Text(_isSimulating ? "PARAR" : "INICIAR CORRIDA", style: const TextStyle(fontWeight: FontWeight.w900, letterSpacing: 1.5)), icon: Icon(_isSimulating ? Icons.stop_rounded : Icons.play_arrow_rounded, size: 32), backgroundColor: _isSimulating ? AppColors.coral : Colors.white, foregroundColor: _isSimulating ? Colors.white : AppColors.background, elevation: 15),
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floatingActionButtonLocation: FloatingActionButtonLocation.centerFloat,
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);
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}
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Widget _buildStat(String label, String value, String unit) {
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return Column(mainAxisSize: MainAxisSize.min, children: [Text(label, style: const TextStyle(color: Colors.white54, fontSize: 10, fontWeight: FontWeight.w900, letterSpacing: 1.5)), const SizedBox(height: 6), Row(crossAxisAlignment: CrossAxisAlignment.baseline, textBaseline: TextBaseline.alphabetic, children: [Text(value, style: const TextStyle(color: Colors.white, fontSize: 26, fontWeight: FontWeight.w900)), const SizedBox(width: 3), Text(unit, style: const TextStyle(color: Colors.white54, fontSize: 10, fontWeight: FontWeight.bold))])]);
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}
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}
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