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

public class ImageAcquisition : MonoBehaviour
{

    public List<GameObject> lookAtCameras;
    /// <summary>
    /// 车辆
    /// </summary>
    public Toggle Car;
    /// <summary>
    /// 行人
    /// </summary>
    public Toggle PeoPle;
    /// <summary>
    /// 红绿灯
    /// </summary>
    public Toggle Light;

    private Coroutine coroutine;
    void Start()
    {
        coroutine = StartCoroutine(GetImageType("0"));
        StopCoroutine(coroutine);
        Car.onValueChanged.AddListener((a) =>
        {
            HideImage();
            if (Car.isOn)
            {
                coroutine = StartCoroutine(GetImageType("车"));
            }
            else
            {
                StopCoroutine(coroutine);
                lookAtCameras = new List<GameObject>();
            }
        });
        PeoPle.onValueChanged.AddListener((a) =>
        {
            HideImage();
            if (PeoPle.isOn)
            {
                coroutine = StartCoroutine(GetImageType("人"));
            }
            else
            {
                StopCoroutine(coroutine);
                lookAtCameras = new List<GameObject>();
            }
        });
        Light.onValueChanged.AddListener((a) =>
        {
            HideImage();
            if (Light.isOn)
            {
                coroutine = StartCoroutine(GetImageType("红绿灯"));
            }
            else
            {
                StopCoroutine(coroutine);
                lookAtCameras = new List<GameObject>();
            }
        });
    }
    /// <summary>
    /// 隐藏图片
    /// </summary>
    public void HideImage()
    {
        if (lookAtCameras.Count > 0)
        {
            for (int i = 0; i < lookAtCameras.Count; i++)
            {
                if (lookAtCameras[i] == null || lookAtCameras[i].transform.childCount < 1) continue;
                lookAtCameras[i].GetComponentInChildren<LookAtCamera>().chirenimage.SetActive(false);
            }
        }
    }
    /// <summary>
    /// 显示图片
    /// </summary>
    public void ShowImage()
    {
        for (int i = 0; i < lookAtCameras.Count; i++)
        {
            if (lookAtCameras[i] == null || lookAtCameras[i].transform.childCount < 1) continue;
            lookAtCameras[i].GetComponentInChildren<LookAtCamera>().chirenimage.SetActive(true);
        }
    }
    IEnumerator GetImageType(string type)
    {
        if (type == "0") yield return null;
        while (true)
        {
            yield return new WaitForSeconds(0.5f);
            if (type == "车")
            {
                lookAtCameras = GameObject.FindGameObjectsWithTag("Car").ToList();
                ShowImage();
            }
            else if (type == "人")
            {
                lookAtCameras = GameObject.FindGameObjectsWithTag("People").ToList();
                ShowImage();
            }
            else if (type == "红绿灯")
            {
                lookAtCameras = GameObject.FindGameObjectsWithTag("红绿灯").ToList();
                ShowImage();
            }
        }
    }
}