import { _decorator, Component, Node, tween, Vec3 } from 'cc';
import { EventDispatcher } from 'db://assets/core_tgx/easy_ui_framework/EventDispatcher';
import { GameEvent } from '../Enum/GameEvent';
const { ccclass, property } = _decorator;

@ccclass('AimTargetComponent')
export class AimTargetComponent extends Component {
    private _originalPos: Vec3 = new Vec3();
    private _isShaking = false;

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

    start() {
        Vec3.copy(this._originalPos, this.node.position);
    }

    //抖动效果
    shakeEffect() {
        if (this._isShaking) return;
        this._isShaking = true;
        
        const shakeDistance = 20; // 抖动幅度
        const duration = 0.4; // 总持续时间0.5秒
        const shakeTimes = 4; // 抖动次数
        
        // 创建随机方向抖动
        const getRandomOffset = () => (Math.random() * 2 - 1) * shakeDistance;
        
        const shakeTween = tween(this.node);
        
        for (let i = 0; i < shakeTimes; i++) {
            shakeTween.to(duration/shakeTimes, { 
                position: new Vec3(
                    this._originalPos.x + getRandomOffset(),
                    this._originalPos.y + getRandomOffset(),
                    this._originalPos.z
                )
            });
        }
        
        // 最后回到原点
        shakeTween.to(duration/shakeTimes, { position: this._originalPos })
            .call(() => {
                this._isShaking = false;
                EventDispatcher.instance.emit(GameEvent.EVENT_CAMERA_HIDE_AIM);
            })
            .start();
    }

    update(deltaTime: number) {
        
    }
}