516 lines
16 KiB
Dart
516 lines
16 KiB
Dart
import 'dart:async';
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import 'dart:math';
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import 'dart:ui';
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import 'package:flutter/material.dart';
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import 'package:lucide_icons/lucide_icons.dart';
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import 'package:fl_chart/fl_chart.dart';
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import '../../data/mock_data.dart';
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import '../../models/scenario.dart';
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class ScriptPlayerScreen extends StatefulWidget {
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final String scenarioId;
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const ScriptPlayerScreen({super.key, required this.scenarioId});
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@override
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State<ScriptPlayerScreen> createState() => _ScriptPlayerScreenState();
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}
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class _ScriptPlayerScreenState extends State<ScriptPlayerScreen>
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with TickerProviderStateMixin {
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bool _isPlaying = true;
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double _progress = 0;
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bool _isDragging = false;
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bool _showAlert = false;
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Timer? _timer;
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late Scenario _scenario;
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late List<FlSpot> _waveData;
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@override
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void initState() {
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super.initState();
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_scenario = mockScenarios.firstWhere(
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(s) => s.id == widget.scenarioId,
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orElse: () => mockScenarios.first,
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);
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_generateWaveData();
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_startPlayback();
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}
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void _generateWaveData() {
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// Generate 101 data points (0 to 100) for realistic wave
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final random = Random(42); // Fixed seed for consistency
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_waveData = List.generate(101, (i) {
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double hz;
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if (i < 20) {
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// Warmup
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hz = 10 + (i * 1.5) + (random.nextDouble() * 5);
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} else if (i < 50) {
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// Plateau/Tease
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hz = 40 + sin(i * 0.5) * 10 + (random.nextDouble() * 10);
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} else if (i < 85) {
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// Build up to climax
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hz = 70 + (i - 50) * 0.8 + (random.nextDouble() * 15);
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} else {
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// Cooldown
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hz = 90 - ((i - 85) * 5) + (random.nextDouble() * 5);
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}
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return FlSpot(i.toDouble(), hz.clamp(0, 100));
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});
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}
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void _startPlayback() {
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_timer?.cancel();
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_timer = Timer.periodic(const Duration(milliseconds: 50), (timer) {
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if (!_isPlaying || _isDragging) return;
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setState(() {
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if (_progress >= 100) {
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_isPlaying = false;
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timer.cancel();
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} else {
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_progress += 0.1;
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}
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});
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});
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}
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void _handleEmergencyStop() {
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setState(() {
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_isPlaying = false;
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_showAlert = true;
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});
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Future.delayed(const Duration(milliseconds: 1500), () {
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if (mounted) {
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Navigator.of(context).pop();
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}
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});
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}
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int get _activeLineIndex {
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for (int i = 0; i < dialogueScript.length; i++) {
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final nextLine = i + 1 < dialogueScript.length ? dialogueScript[i + 1] : null;
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if (_progress >= dialogueScript[i].time &&
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(nextLine == null || _progress < nextLine.time)) {
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return i;
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}
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}
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return 0;
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}
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double get _currentHz {
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final index = _progress.floor().clamp(0, 100);
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return _waveData[index].y;
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}
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@override
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void dispose() {
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_timer?.cancel();
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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 GestureDetector(
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onDoubleTap: _handleEmergencyStop,
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child: Scaffold(
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backgroundColor: const Color(0xFF2E1065),
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body: Stack(
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children: [
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// Background Visual
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Positioned.fill(
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child: Opacity(
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opacity: 0.4,
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child: Stack(
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fit: StackFit.expand,
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children: [
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Image.network(
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_scenario.cover,
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fit: BoxFit.cover,
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),
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BackdropFilter(
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filter: ImageFilter.blur(sigmaX: 20, sigmaY: 20),
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child: Container(color: Colors.transparent),
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),
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Container(
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decoration: const BoxDecoration(
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gradient: LinearGradient(
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begin: Alignment.topCenter,
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end: Alignment.bottomCenter,
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colors: [
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Color(0x992E1065),
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Color(0xCC2E1065),
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Color(0xFF2E1065),
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],
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stops: [0.0, 0.5, 1.0],
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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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// Emergency Overlay
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if (_showAlert)
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Positioned.fill(
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child: Container(
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color: const Color(0xF02E1065),
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(
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LucideIcons.alertTriangle,
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size: 64,
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color: const Color(0xFFF43F5E),
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),
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const SizedBox(height: 16),
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const Text(
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'EMERGENCY STOP',
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style: TextStyle(
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fontSize: 24,
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fontWeight: FontWeight.bold,
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color: Color(0xFFF43F5E),
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letterSpacing: 4,
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),
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),
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const SizedBox(height: 8),
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const Text(
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'系统已强制中断',
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style: TextStyle(fontSize: 14, color: Colors.white70),
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),
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],
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),
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),
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),
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// Main Content
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SafeArea(
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child: Column(
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children: [
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// Header
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_buildHeader(),
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// Central Lyrics
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Expanded(child: _buildLyrics()),
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// Bottom Controls
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_buildControls(),
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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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}
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Widget _buildHeader() {
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return Padding(
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padding: const EdgeInsets.fromLTRB(24, 16, 24, 0),
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child: Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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_scenario.title,
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style: const TextStyle(
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fontSize: 18,
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fontWeight: FontWeight.bold,
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color: Colors.white,
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),
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),
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const SizedBox(height: 4),
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Text(
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'${_scenario.category} SCENARIO',
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style: const TextStyle(
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fontSize: 10,
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letterSpacing: 1,
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color: Color(0xFFC084FC),
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),
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),
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],
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),
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GestureDetector(
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onTap: () => Navigator.of(context).pop(),
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child: Container(
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width: 40,
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height: 40,
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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color: Colors.white.withOpacity(0.1),
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border: Border.all(color: Colors.white.withOpacity(0.1)),
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),
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child: const Icon(LucideIcons.x, size: 20, color: Colors.white70),
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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 _buildLyrics() {
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// 简单展示：只显示当前行附近的几行
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return Center(
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child: Padding(
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padding: const EdgeInsets.symmetric(horizontal: 24),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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// 上面 2 行
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for (int i = _activeLineIndex - 2; i < _activeLineIndex; i++)
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if (i >= 0)
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_buildLyricLine(i, isActive: false, distance: _activeLineIndex - i),
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// 当前行
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_buildLyricLine(_activeLineIndex, isActive: true, distance: 0),
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// 下面 2 行
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for (int i = _activeLineIndex + 1; i <= _activeLineIndex + 2; i++)
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if (i < dialogueScript.length)
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_buildLyricLine(i, isActive: false, distance: i - _activeLineIndex),
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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 _buildLyricLine(int index, {required bool isActive, required int distance}) {
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final opacity = isActive ? 1.0 : (distance > 1 ? 0.2 : 0.5);
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final scale = isActive ? 1.0 : 0.9;
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return AnimatedContainer(
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duration: const Duration(milliseconds: 400),
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height: isActive ? 80 : 56,
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child: AnimatedOpacity(
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duration: const Duration(milliseconds: 400),
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opacity: opacity,
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child: Transform.scale(
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scale: scale,
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child: Center(
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child: Text(
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dialogueScript[index].text,
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textAlign: TextAlign.center,
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style: TextStyle(
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fontSize: isActive ? 20 : 16,
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fontWeight: isActive ? FontWeight.bold : FontWeight.w400,
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color: isActive ? Colors.white : const Color(0xFFCBD5E1),
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shadows: isActive
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? [
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const Shadow(
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color: Color(0x99C084FC),
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blurRadius: 20,
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),
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]
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: null,
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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 _buildControls() {
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return Container(
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padding: const EdgeInsets.fromLTRB(0, 0, 0, 24),
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decoration: BoxDecoration(
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gradient: LinearGradient(
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begin: Alignment.bottomCenter,
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end: Alignment.topCenter,
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colors: [
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const Color(0xFF2E1065),
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const Color(0xFF2E1065),
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const Color(0xFF2E1065).withOpacity(0),
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],
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stops: const [0.0, 0.7, 1.0],
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),
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),
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child: Column(
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children: [
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// Wave Chart
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SizedBox(
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height: 100,
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child: Padding(
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padding: const EdgeInsets.symmetric(horizontal: 16),
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child: LineChart(
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LineChartData(
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gridData: const FlGridData(show: false),
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titlesData: const FlTitlesData(show: false),
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borderData: FlBorderData(show: false),
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minX: 0,
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maxX: 100,
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minY: 0,
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maxY: 100,
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lineBarsData: [
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LineChartBarData(
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spots: _waveData,
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isCurved: true,
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curveSmoothness: 0.3,
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gradient: const LinearGradient(
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colors: [Color(0xFFC084FC), Color(0xFFF472B6)],
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),
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barWidth: 3,
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isStrokeCapRound: true,
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dotData: const FlDotData(show: false),
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belowBarData: BarAreaData(
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show: true,
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gradient: LinearGradient(
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begin: Alignment.topCenter,
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end: Alignment.bottomCenter,
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colors: [
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const Color(0xFFC084FC).withOpacity(0.5),
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const Color(0xFFC084FC).withOpacity(0),
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],
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),
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),
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),
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],
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lineTouchData: const LineTouchData(enabled: false),
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extraLinesData: ExtraLinesData(
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verticalLines: [
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VerticalLine(
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x: _progress,
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color: Colors.white.withOpacity(0.3),
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strokeWidth: 1,
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dashArray: [4, 4],
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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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const SizedBox(height: 16),
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// Control Bar
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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 24),
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child: Row(
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children: [
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// Play/Pause Button
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GestureDetector(
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onTap: () {
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setState(() {
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_isPlaying = !_isPlaying;
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if (_isPlaying && _progress >= 100) {
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_progress = 0;
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}
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});
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},
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child: Container(
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width: 48,
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height: 48,
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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color: Colors.white,
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boxShadow: [
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BoxShadow(
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color: Colors.white.withOpacity(0.3),
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blurRadius: 20,
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),
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],
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),
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child: Icon(
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_isPlaying ? LucideIcons.pause : LucideIcons.play,
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size: 20,
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color: const Color(0xFF2E1065),
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),
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),
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),
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const SizedBox(width: 20),
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// Progress Info & Slider
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const Text(
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'DEVICE INTENSITY',
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style: TextStyle(
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fontSize: 10,
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fontWeight: FontWeight.bold,
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letterSpacing: 1,
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color: Color(0xFFCBD5E1),
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),
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),
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const SizedBox(height: 2),
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Text(
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'伸缩频率: ${max(1, (_progress / 10).ceil())}档',
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style: const TextStyle(
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fontSize: 12,
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fontWeight: FontWeight.bold,
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fontFamily: 'monospace',
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color: Color(0xFFF472B6),
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),
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),
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],
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),
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Text(
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'${(_progress * 1.5).toStringAsFixed(0)}s / ${_scenario.duration}',
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style: const TextStyle(
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fontSize: 10,
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fontFamily: 'monospace',
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color: Color(0xFFCBD5E1),
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),
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),
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],
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),
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const SizedBox(height: 8),
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// Progress Slider
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SliderTheme(
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data: SliderThemeData(
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trackHeight: 4,
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thumbShape: const RoundSliderThumbShape(enabledThumbRadius: 8),
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overlayShape: const RoundSliderOverlayShape(overlayRadius: 16),
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activeTrackColor: const Color(0xFFF472B6),
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inactiveTrackColor: Colors.white.withOpacity(0.2),
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thumbColor: Colors.white,
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),
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child: Slider(
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value: _progress.clamp(0, 100),
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min: 0,
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max: 100,
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onChangeStart: (_) => _isDragging = true,
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onChangeEnd: (_) => _isDragging = false,
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onChanged: (value) {
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setState(() {
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_progress = value;
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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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],
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),
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),
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const SizedBox(height: 16),
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// Emergency Stop Hint
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Text(
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'双击屏幕紧急停止',
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style: TextStyle(
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fontSize: 10,
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letterSpacing: 2,
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color: Colors.white.withOpacity(0.4),
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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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