CGQ/Assets/Scripts/Tool/TraficLight.cs

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

public enum LightState
{
    红,
    黄,
    绿,
}
public class TraficLight : MonoBehaviour
{
    public Image lightImg;
    public float currentLightTime;
    private bool canDrive = true;
    public LightState lightState;

    public GameObject greenLightObj, redLightObj, yellowLightObj;

    public UnityEvent greenLightAction;
    public UnityEvent redLightAction;
    public UnityEvent CarEnterAction;

    public void Init()
    {
        switch (lightState)
        {
            case LightState.绿:               
                canDrive = true;
                currentLightTime = TraficManager.Instance.greenTime;
                lightImg.sprite = TraficManager.Instance.greenSpt;
                greenLightObj.SetActive(true);
                break;
            case LightState.黄:              
                canDrive = false;
                currentLightTime = TraficManager.Instance.yellowTime;
                lightImg.sprite = TraficManager.Instance.yellowSpt;
                yellowLightObj.SetActive(true);
                break;
            case LightState.红:               
                canDrive = false;
               
                currentLightTime = TraficManager.Instance.redTime;
                lightImg.sprite = TraficManager.Instance.redSpt;
                redLightObj.SetActive(true);
                break;
        }           
        StartCoroutine(ChangeLightState());
    }

    IEnumerator ChangeLightState()
    {
        float time = currentLightTime;

        yield return new WaitForSeconds(time);
        switch (lightState)
        {
            case LightState.绿:
                lightState = LightState.黄;
                canDrive = false;
                currentLightTime = TraficManager.Instance.yellowTime;
                lightImg.sprite = TraficManager.Instance.yellowSpt;

                yellowLightObj.SetActive(true);
                greenLightObj.SetActive(false);
                redLightObj.SetActive(false);

                break;
            case LightState.黄:
                lightState = LightState.红;
                canDrive = false;
                currentLightTime = TraficManager.Instance.redTime;
                lightImg.sprite = TraficManager.Instance.redSpt;

                yellowLightObj.SetActive(false);
                greenLightObj.SetActive(false);
                redLightObj.SetActive(true);

                redLightAction.Invoke();
                break;
            case LightState.红:
                lightState = LightState.绿;
                canDrive = true;
                currentLightTime = TraficManager.Instance.greenTime;
                lightImg.sprite = TraficManager.Instance.greenSpt;

                yellowLightObj.SetActive(false);
                greenLightObj.SetActive(false);
                redLightObj.SetActive(true);

                greenLightAction.Invoke();
                break;
        }
        StartCoroutine(ChangeLightState());
    }

    private void OnTriggerEnter(Collider other)
    {
        if (other.gameObject.tag == "Player" || other.gameObject.tag == "Car")
        {
            CarEnterAction.Invoke();
            if (other.GetComponent<Car>().iscrossRedLight == false)
            {
                if (!canDrive)
                {
                    other.GetComponent<Car>().driveStatu = CarDriveStatu.等红灯;
                }
            }
            else
            {
                TraficManager.Instance.chuliWnd.SetActive(true);
                LawCheckList.Instance.AddCarID(other.GetComponent<Car>().CarIDCard, "闯红灯");
            }
          
           
        }
    }

    private void OnTriggerStay(Collider other)
    {
        if (other.gameObject.tag == "Player" || other.gameObject.tag == "Car")
        {
            
            if (canDrive)
            {
                other.GetComponent<Car>().driveStatu = CarDriveStatu.正常;
            }
           
        }
    }
   
}