forked from lxm_flutter/FlutterUnit
97 lines
2.3 KiB
Dart
97 lines
2.3 KiB
Dart
import 'dart:math';
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import 'package:flutter/material.dart';
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import 'particle.dart';
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import 'particle_manage.dart';
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import 'world_render.dart';
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/// create by 张风捷特烈 on 2020/11/5
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/// contact me by email 1981462002@qq.com
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/// 说明:
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class ParticleSplit extends StatefulWidget {
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const ParticleSplit({Key? key}) : super(key: key);
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@override
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_ParticleSplitState createState() => _ParticleSplitState();
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}
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class _ParticleSplitState extends State<ParticleSplit> with SingleTickerProviderStateMixin {
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late AnimationController _controller;
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ParticleManage pm = ParticleManage();
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Random random = Random();
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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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duration: const Duration(seconds: 1),
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vsync: this,
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)..addListener(pm.tick);
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initParticle();
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// Future.delayed(Duration(seconds: 1)).then((value){
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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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super.dispose();
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}
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// void theWorld() {
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// if (_controller.isAnimating) {
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// _controller.stop();
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// } else {
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// _controller.repeat();
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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 LayoutBuilder(
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builder: (_,constraints){
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pm.size = constraints.biggest;
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return GestureDetector(
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// onDoubleTap: (){
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// pm.addParticle(Particle(
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// color: Colors.blue,
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// size: 50,
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// vx: 4 * random.nextDouble() * pow(-1, random.nextInt(20)),
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// vy: 4 * random.nextDouble() * pow(-1, random.nextInt(20)),
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// ay: 0.1,
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// ax: 0.1,
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// x: 150,
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// y: 100));
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// },
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onTap: initParticle,
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child: CustomPaint(
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size: pm.size,
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painter: WorldRender(manage: pm),
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),
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);
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},
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);
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}
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void initParticle(){
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pm.particles.clear();
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pm.addParticle(Particle(
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color: Colors.blue,
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size: 50,
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vx: 4 * random.nextDouble() * pow(-1, random.nextInt(20)),
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vy: 4 * random.nextDouble() * pow(-1, random.nextInt(20)),
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ay: 0.1,
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ax: 0.1,
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x: 150,
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y: 100));
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_controller.reset();
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_controller.repeat();
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}
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}
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