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

public class UI_ButtonCursorChanger : MonoBehaviour, IPointerEnterHandler, IPointerExitHandler
{
    [Header("바꿀 커서 텍스처")]
    public Texture2D cursorTexture;

    [Header("커서 핫스팟 (중심 위치)")]
    public Vector2 hotspot = Vector2.zero;

    private bool isCursorChanged = false;

    private void OnDisable()
    {
        if (isCursorChanged)
        {
            Cursor.SetCursor(null, Vector2.zero, CursorMode.Auto);
            isCursorChanged = false;
        }
    }

    // 마우스가 버튼 위로 올라갔을 때
    public void OnPointerEnter(PointerEventData eventData)
    {
        if (cursorTexture != null && !isCursorChanged)
        {
            Cursor.SetCursor(cursorTexture, hotspot/2, CursorMode.Auto);
            isCursorChanged = true;
        }
    }

    // 마우스가 버튼을 벗어났을 때
    public void OnPointerExit(PointerEventData eventData)
    {
        if (isCursorChanged)
        {
            Cursor.SetCursor(null, Vector2.zero, CursorMode.Auto);
            isCursorChanged = false;
        }
    }
}