using UnityEngine;
using UnityEngine.EventSystems;
using System;

public class LongPressMonitor : MonoBehaviour, IPointerDownHandler, IPointerUpHandler, IPointerExitHandler
{
    public Action onLongPress;
    public float interval = 1.0f;
    bool isDown;
    float downTime;
    [NonSerialized] public bool isLongPress; //最后一次点击是否为长按

    void Update()
    {
        if (isDown)
        {
            if (Time.time - downTime > interval)
            {
                isDown = false;
                isLongPress = true;
                onLongPress?.Invoke();           
            }
        }
    }
    public void OnPointerDown(PointerEventData eventData)
    {
        isDown = true;
        isLongPress = false;
        downTime = Time.time;
    }
    public void OnPointerExit(PointerEventData eventData)
    {
        isDown = false;
    }
    public void OnPointerUp(PointerEventData eventData)
    {
        isDown = false;
    }
}