import { _decorator, Component, Graphics, Color } from 'cc';
const { ccclass } = _decorator;

@ccclass('Shadow2D')
export class Shadow2D extends Component {
  start() {
    let g = this.node.addComponent(Graphics);
    g.fillColor = new Color(0, 0, 0, 100); // 半透明黑色
    g.ellipse(0, 0, 40, 15);  // 椭圆（radiusX=40, radiusY=15）
    g.fill();
  }
}