pinball/assets/_Game/Scripts/GamePlay/MutilBall.ts

import { _decorator, Collider2D, Component, Contact2DType, Vec2, Node } from 'cc';
import { GameManager } from '../Manager/GameManager';
import Utilities from '../Utilities';
import { Ball } from './Ball';
import TimeConfig from '../Enum/TimeConfig';
const { ccclass, property } = _decorator;

@ccclass('MultiBall')
export class MultiBall extends Component {
    @property({ type: Collider2D, visible: true })
    private _collider: Collider2D;
    @property({ type: Node, visible: true })
    private _portLeft;
    @property({ type: Node, visible: true })
    private _portRight;

    private _originBall: Ball;
    private _trigged = false;

    protected onLoad(): void {
        this._collider.on(Contact2DType.BEGIN_CONTACT, this.onBeginContact, this);
    }

    protected lateUpdate(dt: number): void {
        if (this._trigged) {
            this._originBall.setActiveRigi(true);
            const ball1 = this._originBall;
            const ball2 = GameManager.instance.spawnBall(false);
            ball1.node.setWorldPosition(this._portRight.worldPosition);
            ball1.addForce(new Vec2(10, 0));

            ball2.node.setWorldPosition(this._portLeft.worldPosition);
            ball2.addForce(new Vec2(-10, 0));

            this._trigged = false;
        }
    }

    private async onBeginContact(selfCollider: Collider2D, otherCollider: Collider2D) {
        if (this._trigged) return;
        this._collider.enabled = false;
        this._originBall = otherCollider.getComponent(Ball);
        this._originBall.setActiveRigi(false);
        this._trigged = true;
        await Utilities.delay(TimeConfig.DelayMultiBall);
        this._collider.enabled = true;
    }
}