_Aliens/assets/module_aliens/Script/Components/HeadShotTipComponent.ts

import { _decorator, Component, Game, Node, tween, UIOpacity } from 'cc';
import { EventDispatcher } from 'db://assets/core_tgx/easy_ui_framework/EventDispatcher';
import { GameEvent } from '../Enum/GameEvent';
const { ccclass, property } = _decorator;

@ccclass('HeadTipComponent')
export class HeadTipComponent extends Component {
    private _children: Node[] = [];

    protected onLoad(): void {
        EventDispatcher.instance.on(GameEvent.EVENT_CAMERA_HEADSHOT,this.showTip,this);
    }

    start() {
        // 获取所有子节点
        this._children = this.node.children;
        // 初始隐藏所有提示
        this._children.forEach(child => child.active = false);
    }

    showTip() {
        if (this._children.length < 2) return;
        
        // 随机选择一个子节点
        const randomIndex = Math.floor(Math.random() * this._children.length);
        const tipNode = this._children[randomIndex];
        
        // 显示节点并添加淡出效果
        tipNode.active = true;
        const uiOpacity = tipNode.getComponent(UIOpacity) || tipNode.addComponent(UIOpacity);
        uiOpacity.opacity = 255;
        
        tween(uiOpacity)
            .delay(0.5)
            .to(0.3, { opacity: 0 })
            .call(() => {
                tipNode.active = false;
            })
            .start();
    }

    update(deltaTime: number) {
        
    }
}