Untitled

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

public class DragDrop : MonoBehaviour, IBeginDragHandler, IDragHandler, IEndDragHandler
{
    private Vector2 originalPosition;
    private Transform originalParent;
    public RectTransform rectTransform;
    private Canvas overlayCanvas;
    private Camera mainCamera;
    private CardHoverEffect cardHoverEffect; // Reference to the CardHoverEffect script
    private HandArea handArea; // Reference to the HandArea script

    private void Awake()
    {
        rectTransform = GetComponent<RectTransform>();
        overlayCanvas = GameObject.FindGameObjectWithTag("OverlayCanvas").GetComponent<Canvas>();
        mainCamera = Camera.main;
        cardHoverEffect = GetComponent<CardHoverEffect>(); // Get the CardHoverEffect script
        handArea = transform.parent.GetComponent<HandArea>(); // Get the HandArea script from the parent object
    }

    private bool droppedOnValidZone = false;

    public void OnDroppedOnValidZone()
    {
        droppedOnValidZone = true;
    }

    public void OnBeginDrag(PointerEventData eventData)
    {
        Debug.Log("Begin dragging: " + gameObject.name);

        // Store the original parent and position of the object.
        originalParent = transform.parent;
        originalPosition = rectTransform.anchoredPosition;

        // Disable EventTrigger and hover effect while dragging the object.
        GetComponent<EventTrigger>().enabled = false;
        if (cardHoverEffect != null) // Check if cardHoverEffect is available
        {
            cardHoverEffect.DisableHover();
        }

        // Disable curve updates in HandArea
        handArea.DisableCurveUpdate();

        // Move the object to the top of the UI hierarchy of the overlay canvas so it appears in front of everything else.
        transform.SetParent(overlayCanvas.transform);
    }

    public void OnDrag(PointerEventData eventData)
    {
        rectTransform.anchoredPosition += eventData.delta / overlayCanvas.scaleFactor; // Using delta to move with the mouse.
    }

    public void OnEndDrag(PointerEventData eventData)
    {
        Debug.Log("End dragging: " + gameObject.name + " Dropped on: " + eventData.pointerCurrentRaycast.gameObject.name);

        // Re-enable EventTrigger and hover effect when the dragging ends.
        GetComponent<EventTrigger>().enabled = true;
        if (cardHoverEffect != null) // Check if cardHoverEffect is available
        {
            cardHoverEffect.EnableHover();
        }

        // Enable curve updates in HandArea
        handArea.EnableCurveUpdate();

        // Check if the card was dropped on a valid zone
        if (droppedOnValidZone)
        {
            transform.SetParent(eventData.pointerCurrentRaycast.gameObject.transform);
            rectTransform.anchoredPosition = Vector2.zero; // Set position in the center of the drop zone.
            droppedOnValidZone = false; // Reset the flag
        }
        else
        {
            // If not, revert to its original parent and position.
            transform.SetParent(originalParent);
            rectTransform.anchoredPosition = originalPosition;
        }
    }
}