327 lines
8.6 KiB
Dart
327 lines
8.6 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_screenutil/flutter_screenutil.dart';
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import 'dart:math';
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import 'dart:async';
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import 'package:yumi/ui_kit/widgets/headdress/headdress_widget.dart';
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import 'package:yumi/ui_kit/widgets/room/anim/room_entrance_widget.dart';
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// 红包数据模型
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class RedPacket {
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double x; // x坐标
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double y; // y坐标
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double speed; // 下落速度
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double size; // 大小
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double rotation; // 旋转角度
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double rotationSpeed; // 旋转速度
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Color color; // 红包颜色
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bool isCollected; // 是否被收集
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String id; // 唯一标识符
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RedPacket({
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required this.x,
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required this.y,
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required this.speed,
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required this.size,
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required this.rotation,
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required this.rotationSpeed,
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required this.color,
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this.isCollected = false,
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required this.id,
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});
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}
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class RedPacketRainPage extends StatefulWidget {
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@override
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_RedPacketRainPageState createState() => _RedPacketRainPageState();
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}
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class _RedPacketRainPageState extends State<RedPacketRainPage>
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with SingleTickerProviderStateMixin {
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late AnimationController _controller;
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final Random _random = Random();
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final List<RedPacket> _redPackets = [];
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final int _maxPackets = 50;
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DateTime? _startTime;
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int _durationSeconds = 30;
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int _collectedCount = 0;
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final List<Color> _redColors = [
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Colors.red[400]!,
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Colors.red[500]!,
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Colors.red[600]!,
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Colors.red[700]!,
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Colors.red[800]!,
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Colors.red[900]!,
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];
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@override
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void initState() {
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super.initState();
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_controller = AnimationController(
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vsync: this,
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duration: Duration(milliseconds: 350),
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)..addListener(_updateRain);
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_startRain();
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Future.delayed(Duration(seconds: 3),(){
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RoomEntranceQueueManager().addToQueue(AnimationQueueItem(resource: "sc_images/room/entrance/test3.svga",dynamicData: {"textReplacements":{"02":"3123123"}}));
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});
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}
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void _startRain() {
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_startTime = DateTime.now();
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_collectedCount = 0;
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_redPackets.clear();
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_controller.repeat();
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Timer(Duration(seconds: _durationSeconds), () {
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if (mounted) {
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_controller.stop();
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}
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});
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}
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void _updateRain() {
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if (!mounted) return;
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final screenWidth = MediaQuery.of(context).size.width;
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final screenHeight = MediaQuery.of(context).size.height;
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// 随机生成新红包
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if (_redPackets.length < _maxPackets && _random.nextDouble() < 0.3) {
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_createNewPacket(screenWidth, screenHeight);
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}
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// 更新现有红包位置
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for (int i = _redPackets.length - 1; i >= 0; i--) {
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final packet = _redPackets[i];
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if (!packet.isCollected) {
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packet.y += packet.speed;
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packet.rotation += packet.rotationSpeed;
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if (packet.y > screenHeight + 100) {
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_redPackets.removeAt(i);
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continue;
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}
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}
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}
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setState(() {});
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}
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void _createNewPacket(double screenWidth, double screenHeight) {
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_redPackets.add(
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RedPacket(
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x: _random.nextDouble() * screenWidth,
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y: -50,
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speed: 2 + _random.nextDouble() * 3,
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size: 30 + _random.nextDouble() * 20,
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rotation: _random.nextDouble() * 2 * pi,
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rotationSpeed: (_random.nextDouble() - 0.5) * 0.1,
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color: _redColors[_random.nextInt(_redColors.length)],
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id: '${DateTime.now().millisecondsSinceEpoch}_${_random.nextInt(1000)}',
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),
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);
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}
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void _collectPacket(String packetId) {
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final packetIndex = _redPackets.indexWhere(
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(packet) => packet.id == packetId,
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);
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if (packetIndex != -1 && !_redPackets[packetIndex].isCollected) {
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setState(() {
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_redPackets[packetIndex].isCollected = true;
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_collectedCount++;
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});
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// 收集动画效果
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Future.delayed(Duration(milliseconds: 350), () {
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if (mounted) {
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setState(() {
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_redPackets.removeWhere((packet) => packet.id == packetId);
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});
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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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_redPackets.clear();
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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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final remainingTime =
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_startTime != null
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? max(
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0,
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_durationSeconds -
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DateTime.now().difference(_startTime!).inSeconds,
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)
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: _durationSeconds;
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return Scaffold(
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backgroundColor: Colors.black,
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body: RoomEntranceWidget(
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height: 90.w,
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),
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);
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}
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void _handleTap(Offset position) {
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// 从后往前遍历，这样点击检测会优先处理最上层的红包（最后绘制的）
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for (int i = _redPackets.length - 1; i >= 0; i--) {
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final packet = _redPackets[i];
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if (!packet.isCollected && _isPointInRedPacket(position, packet)) {
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_collectPacket(packet.id);
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break; // 只处理最上层的一个红包
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}
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}
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}
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bool _isPointInRedPacket(Offset point, RedPacket packet) {
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// 简化的点击区域检测 - 圆形区域
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final distance = sqrt(
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pow(point.dx - packet.x, 2) + pow(point.dy - packet.y, 2),
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);
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return distance < packet.size;
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}
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Widget _buildInfoCard(String title, String value) {
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return Container(
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padding: EdgeInsets.symmetric(horizontal: 12, vertical: 6),
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decoration: BoxDecoration(
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color: Colors.black54,
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borderRadius: BorderRadius.circular(16),
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border: Border.all(color: Colors.red),
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),
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child: Column(
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children: [
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Text(title, style: TextStyle(color: Colors.white, fontSize: 10)),
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Text(
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value,
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style: TextStyle(
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color: Colors.red,
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fontSize: 14,
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fontWeight: FontWeight.bold,
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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 RedPacketPainter extends CustomPainter {
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final List<RedPacket> redPackets;
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RedPacketPainter({required this.redPackets});
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@override
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void paint(Canvas canvas, Size size) {
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final textPainter = TextPainter(textDirection: TextDirection.ltr);
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for (final packet in redPackets) {
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if (packet.isCollected) {
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_drawCollectedPacket(canvas, packet);
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} else {
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_drawRedPacket(canvas, packet, textPainter);
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}
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}
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}
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void _drawRedPacket(
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Canvas canvas,
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RedPacket packet,
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TextPainter textPainter,
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) {
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canvas.save();
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canvas.translate(packet.x, packet.y);
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canvas.rotate(packet.rotation);
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// 绘制红包主体
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final packetPaint =
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Paint()
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..color = packet.color
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..style = PaintingStyle.fill;
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final rect = Rect.fromCenter(
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center: Offset.zero,
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width: packet.size,
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height: packet.size * 1.5,
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);
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final rrect = RRect.fromRectAndRadius(rect, Radius.circular(8));
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canvas.drawRRect(rrect, packetPaint);
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// 红包中间的黄色条纹
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final stripePaint =
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Paint()
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..color = Colors.yellow[700]!
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..style = PaintingStyle.fill;
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final stripeRect = Rect.fromCenter(
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center: Offset.zero,
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width: packet.size * 0.8,
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height: packet.size * 0.2,
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);
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canvas.drawRRect(
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RRect.fromRectAndRadius(stripeRect, Radius.circular(4)),
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stripePaint,
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);
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// 红包文字
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textPainter.text = TextSpan(
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text: '福',
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style: TextStyle(
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color: Colors.yellow[700],
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fontSize: packet.size * 0.4,
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fontWeight: FontWeight.bold,
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),
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);
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textPainter.layout();
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textPainter.paint(
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canvas,
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Offset(-textPainter.width / 2, -textPainter.height / 2),
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);
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canvas.restore();
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}
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void _drawCollectedPacket(Canvas canvas, RedPacket packet) {
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final progress = (DateTime.now().millisecondsSinceEpoch % 300) / 300;
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final scale = 1.0 - progress;
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final opacity = 1.0 - progress;
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canvas.save();
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canvas.translate(packet.x, packet.y);
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canvas.scale(scale);
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final packetPaint =
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Paint()
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..color = packet.color.withOpacity(opacity)
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..style = PaintingStyle.fill;
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final rect = Rect.fromCenter(
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center: Offset.zero,
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width: packet.size,
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height: packet.size * 1.5,
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);
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final rrect = RRect.fromRectAndRadius(rect, Radius.circular(8));
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canvas.drawRRect(rrect, packetPaint);
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canvas.restore();
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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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