import { _decorator, BoxCollider2D, Component, Node, PhysicsSystem2D, UITransform } from 'cc';

const { ccclass, property } = _decorator;

@ccclass('PushItem')
export class PushItem extends Component {

    targetWidth: number = 500;

    //duration: number = 60.0;
    private speed: number = 2;

    start() {
        // this.init()
      
    }

    init(time) {
        let boxCollider2D = this.getComponent(BoxCollider2D)
        const startWidth = this.getComponent(UITransform).contentSize.width;
        const deltaWidth = this.targetWidth - startWidth;
        if (!time) {
            time = 1
        }
        // 计算每秒需要增加的宽度
        this.speed = deltaWidth / time;
       
        // let s = endPos.pushItem - this.getComponent(UITransform).contentSize.width;
        // this.speed = s / time
    }

    resize(dt: number) {
        // 计算这一帧需要增加的宽度
        const deltaWidth = this.speed * dt;

        // 获取当前宽度
        const uit = this.getComponent(UITransform);
        const currentWidth = uit.contentSize.width;
        // 更新宽度
        const newWidth = currentWidth + deltaWidth;
        // 如果已经达到目标宽度，停止更新
        if (newWidth >= this.targetWidth) {
            this.speed = 0; // 停止更新
            uit.setContentSize(this.targetWidth, uit.contentSize.height);
        } else {
            uit.setContentSize(newWidth, uit.contentSize.height);
        }
        this.updateCollider(newWidth);
    }
    //更新碰撞体
    updateCollider(width: number) {
        const collider = this.getComponent(BoxCollider2D);
        if (collider) {
            collider.size.width = width - 10;
            collider.offset.x = (width - 10) * 0.5;
            collider.apply();
        }
    }
}