using UnityEngine;
using System;

//点击其他区域触发事件，无显隐逻辑
[RequireComponent(typeof(RectTransform))]
public class ClickScreenOtherSpaceEvent : MonoBehaviour
{

    [SerializeField]
    RespondType m_RespondType = RespondType.Out;
    public RespondType respondType {
        get { return m_RespondType; }
        set { m_RespondType = value; }
    }

    Action m_ClickOtherEvent;

    public void AddListener(Action _callBack)
    {
        m_ClickOtherEvent = null;
        m_ClickOtherEvent += _callBack;
    }

    public void RemoveAllListeners()
    {
        m_ClickOtherEvent = null;
    }


    private void LateUpdate()
    {
        if (Input.GetMouseButtonDown(0))
        {
            var sp = Input.mousePosition;
            switch (m_RespondType)
            {
                case RespondType.In:
                    if (RectTransformUtility.RectangleContainsScreenPoint(this.transform as RectTransform, sp, CameraManager.uiCamera))
                    {
                        m_ClickOtherEvent?.Invoke();
                    }
                    break;
                case RespondType.Out:
                    if (!RectTransformUtility.RectangleContainsScreenPoint(this.transform as RectTransform, sp, CameraManager.uiCamera))
                    {
                        m_ClickOtherEvent?.Invoke();
                    }
                    break;
            }
        }

    }

    public enum RespondType
    {
        In,
        Out,
            
    }
}