我使用three.dart 框架开发了简单的项目。它启动并显示网页正常。但在 3-5 秒后,它会因未知错误而崩溃。Dart 编辑器和浏览器不显示崩溃的原因
这是一个代码:
import 'dart:html';
import 'dart:math' as Math;
import 'package:three/three.dart';
class MyClass {
Element container;
PerspectiveCamera camera;
Scene scene;
CanvasRenderer renderer;
Mesh plane;
num targetRotation;
num targetRotationOnMouseDown;
num windowHalfX;
num windowHalfY;
var evtSubscriptions = [];
void run() {
init();
animate(0);
}
void init() {
targetRotation = 0;
targetRotationOnMouseDown = 0;
windowHalfX = window.innerWidth / 2;
windowHalfY = window.innerHeight / 2;
container = new Element.tag('div');
document.body.nodes.add( container );
Element info = new Element.tag('div');
info.style.position = 'absolute';
info.style.top = '10px';
info.style.width = '100%';
info.style.textAlign = 'center';
info.innerHtml = 'Drag to spin the cube';
container.nodes.add( info );
scene = new Scene();
camera = new PerspectiveCamera( 70.0, window.innerWidth / window.innerHeight, 1.0, 1000.0 );
camera.position.y = 150.0;
camera.position.z = 500.0;
scene.add( camera );
// Plane
plane = new Mesh( new PlaneGeometry( 200.0, 200.0 ), null);
scene.add( plane );
renderer = new CanvasRenderer();
renderer.setSize( window.innerWidth, window.innerHeight );
container.nodes.add( renderer.domElement );
}
void render() {
renderer.render( scene, camera );
}
animate(num time) {
window.requestAnimationFrame(animate);
render();
}
}
void main() {
new Canvas_Geometry_Cube().run();
}
如何修复崩溃?