using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;

public class DraggableUI : MonoBehaviour,IDragHandler, IPointerDownHandler
{
    private RectTransform rectTransform;
    private Canvas canvas;

    public RectTransform target;

    public GameObject button;

    public bool isDone=false;

    private void Awake()
    {
        rectTransform = GetComponent<RectTransform>();
        canvas = GetComponentInParent<Canvas>();
    }

    public void OnPointerDown(PointerEventData eventData)
    {
        // 这里可以添加按下时的逻辑，比如记录初始位置
    }


     public void OnDrag(PointerEventData eventData)
    {    
            Vector3 screenPosition = new Vector3(eventData.position.x, eventData.position.y,
            Camera.main.WorldToScreenPoint(transform.position).z);
            Vector3 move = Camera.main.ScreenToWorldPoint(screenPosition);
            move.z = transform.position.z;
            transform.position = move;
            //plugSprite.enabled = true;
    }
    void Update()
    {
        // 计算两个物体之间的距离
        float distance = Vector3.Distance(transform.position, target.position);

        // 检查距离是否在范围内，并激活或禁用 Button
        if (distance <= 1&&!isDone)
        {
            button.SetActive(true);
        }
        else
        {
            button.SetActive(false);
        }
    }
}