421 lines
10 KiB
Dart
421 lines
10 KiB
Dart
import 'dart:math' as math;
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import 'package:flutter/material.dart';
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import 'package:mobile_scanner/mobile_scanner.dart';
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import 'package:lba/res/colors.dart';
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import '../services/location_service.dart';
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class HintCameraWidget extends StatefulWidget {
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final double targetLatitude;
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final double targetLongitude;
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final String hintDescription;
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final VoidCallback onHintFound;
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final VoidCallback onClose;
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const HintCameraWidget({
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super.key,
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required this.targetLatitude,
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required this.targetLongitude,
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required this.hintDescription,
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required this.onHintFound,
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required this.onClose,
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});
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@override
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State<HintCameraWidget> createState() => _HintCameraWidgetState();
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}
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class _HintCameraWidgetState extends State<HintCameraWidget>
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with TickerProviderStateMixin {
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MobileScannerController? _controller;
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bool _isScanning = true;
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bool _hintFound = false;
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late AnimationController _pulseController;
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late AnimationController _scanController;
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late Animation<double> _pulseAnimation;
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late Animation<double> _scanAnimation;
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@override
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void initState() {
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super.initState();
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_initializeCamera();
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_setupAnimations();
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_checkLocationPeriodically();
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}
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void _setupAnimations() {
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_pulseController = AnimationController(
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duration: const Duration(milliseconds: 1500),
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vsync: this,
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);
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_scanController = AnimationController(
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duration: const Duration(milliseconds: 2000),
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vsync: this,
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);
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_pulseAnimation = Tween<double>(
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begin: 0.8,
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end: 1.2,
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).animate(CurvedAnimation(
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parent: _pulseController,
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curve: Curves.easeInOut,
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));
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_scanAnimation = Tween<double>(
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begin: 0.0,
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end: 1.0,
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).animate(CurvedAnimation(
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parent: _scanController,
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curve: Curves.linear,
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));
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_pulseController.repeat(reverse: true);
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_scanController.repeat();
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}
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void _initializeCamera() async {
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try {
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_controller = MobileScannerController(
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detectionSpeed: DetectionSpeed.noDuplicates,
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facing: CameraFacing.back,
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);
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} catch (e) {
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// Handle camera initialization error
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}
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}
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void _checkLocationPeriodically() async {
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while (_isScanning && !_hintFound) {
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await Future.delayed(const Duration(seconds: 2));
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if (!mounted) break;
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final position = await LocationService.getCurrentPosition();
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if (position != null) {
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final isNearTarget = LocationService.isWithinRange(
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position.latitude,
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position.longitude,
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widget.targetLatitude,
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widget.targetLongitude,
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rangeInMeters: 100.0, // 100 meters range for hints
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);
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if (isNearTarget && !_hintFound) {
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setState(() {
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_hintFound = true;
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});
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widget.onHintFound();
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break;
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}
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}
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}
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}
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@override
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void dispose() {
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_controller?.dispose();
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_pulseController.dispose();
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_scanController.dispose();
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super.dispose();
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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: Colors.black,
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appBar: AppBar(
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backgroundColor: Colors.transparent,
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elevation: 0,
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leading: IconButton(
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onPressed: widget.onClose,
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icon: const Icon(
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Icons.close_rounded,
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color: Colors.white,
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size: 28,
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),
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),
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title: Text(
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'AR Hint Scanner',
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style: TextStyle(
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color: Colors.white,
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fontSize: 18,
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fontWeight: FontWeight.w600,
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),
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),
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centerTitle: true,
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),
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body: Stack(
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children: [
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// Camera view
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if (_controller != null)
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MobileScanner(
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controller: _controller!,
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onDetect: (capture) {
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// Handle any QR code detection if needed
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},
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)
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else
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Container(
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color: Colors.black,
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child: const Center(
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child: CircularProgressIndicator(color: Colors.white),
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),
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),
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// AR Overlay
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_buildAROverlay(),
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// Hint status
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_buildHintStatus(),
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// Instructions
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_buildInstructions(),
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],
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),
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);
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}
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Widget _buildAROverlay() {
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return CustomPaint(
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painter: AROverlayPainter(
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scanAnimation: _scanAnimation,
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pulseAnimation: _pulseAnimation,
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hintFound: _hintFound,
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),
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size: Size.infinite,
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);
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}
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Widget _buildHintStatus() {
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return Positioned(
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top: 100,
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left: 20,
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right: 20,
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child: Container(
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padding: const EdgeInsets.all(16),
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decoration: BoxDecoration(
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color: Colors.black.withOpacity(0.7),
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borderRadius: BorderRadius.circular(12),
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),
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child: Column(
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children: [
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Icon(
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_hintFound ? Icons.check_circle : Icons.search,
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color: _hintFound ? Colors.green : Colors.orange,
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size: 32,
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),
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const SizedBox(height: 8),
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Text(
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_hintFound ? 'Hint Found!' : 'Searching for AR Marker...',
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style: const TextStyle(
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color: Colors.white,
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fontSize: 16,
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fontWeight: FontWeight.w600,
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),
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textAlign: TextAlign.center,
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),
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if (_hintFound) ...[
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const SizedBox(height: 8),
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Text(
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widget.hintDescription,
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style: const TextStyle(
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color: Colors.white70,
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fontSize: 14,
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),
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textAlign: TextAlign.center,
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),
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],
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],
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),
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),
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);
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}
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Widget _buildInstructions() {
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return Positioned(
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bottom: 50,
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left: 20,
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right: 20,
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child: Container(
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padding: const EdgeInsets.all(20),
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decoration: BoxDecoration(
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color: Colors.black.withOpacity(0.8),
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borderRadius: BorderRadius.circular(16),
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),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Icon(
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Icons.center_focus_strong,
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color: AppColors.primary,
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size: 40,
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),
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const SizedBox(height: 12),
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Text(
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'Point your camera at the environment',
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style: const TextStyle(
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color: Colors.white,
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fontSize: 16,
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fontWeight: FontWeight.w600,
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),
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textAlign: TextAlign.center,
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),
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const SizedBox(height: 8),
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Text(
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'Move closer to the target location\nto discover the AR hint marker',
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style: const TextStyle(
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color: Colors.white70,
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fontSize: 14,
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height: 1.4,
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),
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textAlign: TextAlign.center,
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),
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],
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),
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),
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);
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}
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}
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class AROverlayPainter extends CustomPainter {
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final Animation<double> scanAnimation;
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final Animation<double> pulseAnimation;
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final bool hintFound;
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AROverlayPainter({
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required this.scanAnimation,
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required this.pulseAnimation,
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required this.hintFound,
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});
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@override
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void paint(Canvas canvas, Size size) {
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final paint = Paint()
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..color = hintFound ? Colors.green : Colors.blue
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..style = PaintingStyle.stroke
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..strokeWidth = 3.0;
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final center = Offset(size.width / 2, size.height / 2);
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final radius = 80.0;
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// Draw scanning circle
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if (!hintFound) {
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canvas.drawCircle(
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center,
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radius * pulseAnimation.value,
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paint..color = Colors.blue.withOpacity(0.6),
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);
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// Draw scanning line
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const sweepAngle = math.pi / 3;
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final startAngle = scanAnimation.value * 2 * math.pi;
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paint
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..color = Colors.cyan
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..strokeWidth = 2.0
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..style = PaintingStyle.stroke;
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canvas.drawArc(
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Rect.fromCircle(center: center, radius: radius),
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startAngle,
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sweepAngle,
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false,
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paint,
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);
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} else {
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// Draw found indicator
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paint
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..color = Colors.green
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..style = PaintingStyle.fill;
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canvas.drawCircle(
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center,
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20 * pulseAnimation.value,
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paint..color = Colors.green.withOpacity(0.3),
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);
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canvas.drawCircle(
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center,
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10,
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paint..color = Colors.green,
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);
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// Draw checkmark
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paint
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..color = Colors.white
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..strokeWidth = 3.0
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..style = PaintingStyle.stroke
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..strokeCap = StrokeCap.round;
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final path = Path();
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path.moveTo(center.dx - 5, center.dy);
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path.lineTo(center.dx - 2, center.dy + 3);
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path.lineTo(center.dx + 5, center.dy - 3);
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canvas.drawPath(path, paint);
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}
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// Draw corner brackets
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_drawCornerBrackets(canvas, size);
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}
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void _drawCornerBrackets(Canvas canvas, Size size) {
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final paint = Paint()
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..color = Colors.white.withOpacity(0.8)
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..strokeWidth = 2.0
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..style = PaintingStyle.stroke;
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const bracketSize = 30.0;
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const margin = 50.0;
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// Top-left
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canvas.drawLine(
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Offset(margin, margin),
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Offset(margin + bracketSize, margin),
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paint,
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);
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canvas.drawLine(
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Offset(margin, margin),
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Offset(margin, margin + bracketSize),
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paint,
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);
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// Top-right
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canvas.drawLine(
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Offset(size.width - margin, margin),
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Offset(size.width - margin - bracketSize, margin),
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paint,
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);
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canvas.drawLine(
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Offset(size.width - margin, margin),
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Offset(size.width - margin, margin + bracketSize),
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paint,
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);
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// Bottom-left
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canvas.drawLine(
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Offset(margin, size.height - margin),
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Offset(margin + bracketSize, size.height - margin),
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paint,
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);
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canvas.drawLine(
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Offset(margin, size.height - margin),
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Offset(margin, size.height - margin - bracketSize),
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paint,
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);
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// Bottom-right
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canvas.drawLine(
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Offset(size.width - margin, size.height - margin),
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Offset(size.width - margin - bracketSize, size.height - margin),
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paint,
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);
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canvas.drawLine(
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Offset(size.width - margin, size.height - margin),
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Offset(size.width - margin, size.height - margin - bracketSize),
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paint,
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);
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}
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@override
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bool shouldRepaint(covariant CustomPainter oldDelegate) => true;
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}
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