work/Assets/Script/Tool/DargCheck.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class DargCheck : MonoBehaviour
{
    [Header("拖拽入的选项")]
    public int DargID = -1;
    [Header("正确选项")]
    public int Answer = -1;
    [Header("检测是否正确")]
    public bool CheckOK = false;
    [HideInInspector]
    public UiListenter[] uiListenters;

    public bool openCheck = false;

    private Vector3[] posGroup;

    private void Update()
    {
        if (openCheck)
        {
            CheckDargImg();
        }


    }

    /// <summary>
    /// 检测是否拖拽入方框位置
    /// </summary>
    private void CheckDargImg()
    {
        posGroup = new Vector3[uiListenters.Length];
        for (int i = 0; i < uiListenters.Length; i++)
        {
            posGroup[i] = uiListenters[i].GetComponent<RectTransform>().position;
            if (Vector3.Distance(posGroup[i], transform.GetComponent<RectTransform>().position) < 50f)
            {
                uiListenters[i].GetComponent<RectTransform>().position = transform.GetComponent<RectTransform>().position;
                DargID = uiListenters[i].ID;
                break;
            }
        }
        openCheck = false;
    }

    public bool CheckAnswer()
    {
        if (DargID == Answer)
        {
            CheckOK = true;
            this.GetComponent<Image>().color = Color.green;
            return true;
        }
        else
        {
            CheckOK = false;
            this.GetComponent<Image>().color = Color.red;
            return false;
        }
    }

}