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

public class RoadSys : MonoBehaviour
{
    /// <summary>
    /// 路段检测数据字典
    /// </summary>
    public Dictionary<string, int> roadCheckerDict = new Dictionary<string, int>();
    /// <summary>
    /// 2D地图中路段状态的对象的字典
    /// </summary>
    public Dictionary<string, GameObject> roadStateDict = new Dictionary<string, GameObject>();
    private float timer = 0;

    public void Init()
    {
        InitChecker();
        
    }

    //检索检测器和2D地图路段状态器
    public void InitChecker()
    {
        //检测器
        GameObject[] checkers = GameObject.FindGameObjectsWithTag("CarFlowChecker");
        for (int i = 0; i < checkers.Length; i++)
        {
            if (checkers[i] != null)
            {
                roadCheckerDict.Add(checkers[i].name, 0);//初始化阶段，车辆数量默认0
            }
        }
        ///状态器
        GameObject[] states= GameObject.FindGameObjectsWithTag("CarFlowState");
        for (int i = 0; i < states.Length; i++)
        {
            if (states[i] != null)
            {
                roadStateDict.Add(states[i].name, states[i]);//初始化阶段，车辆数量默认0
            }
        }

    }

    /// <summary>
    /// 路段字典键值修改
    /// </summary>
    /// <param name="roadName"></param>
    /// <param name="value"></param>
    public void SetCheckerValue(string roadName,int value)
    {
        if (roadCheckerDict.ContainsKey(roadName))
        {
            //改变值
            int numble = roadCheckerDict[roadName];
            numble += value;
            //加入字典
            roadCheckerDict.Remove(roadName);
            roadCheckerDict.Add(roadName, numble);
        }
    }
    /// <summary>
    /// 路况更新函数
    /// </summary>
    /// <param name="time">间隔时间</param>
    public void RoadStateUpdate(float time)
    {
        timer += Time.deltaTime;
        if (timer >= time)
        {
            foreach (var item in roadCheckerDict)
            {
                GameObject state_object = null;
                //获取到状态表示器
                if(roadStateDict.TryGetValue(item.Key, out state_object))
                {
                    int numble = item.Value;//监控的车辆数量
                    MeshRenderer renderer = state_object.GetComponent<MeshRenderer>();
                    
                    if (numble >= 0 && numble <= 4)//绿色状态
                    {
                        renderer.material.SetInt("_ColorIndex",0);
                    }
                    else if(numble > 4 && numble <= 8)//黄色状态
                    {
                        renderer.material.SetInt("_ColorIndex", 1);
                    }
                    else if (numble > 8 )//红色拥堵
                    {
                        renderer.material.SetInt("_ColorIndex", 2);
                    }

                }
                else
                {
                    Debug.LogError("没有获取到状态表示器：" + item.Key);
                }
            }

            timer = 0;
        }
    }
}