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

/// <summary>
/// 路段车辆流量检测器
/// </summary>
public class RoadChecker : MonoBehaviour
{
    public enum CheckerDirType
    {
        None=0,
        Up,
        Down,
        Left,
        Right

    }

    public CheckerDirType type = CheckerDirType.None;
    public string roadName = "";
    private RoadInfo info = null;

    private void Start()
    {
        if (roadName != null)
        {
           info= GameRoot.Instance.infoWnd.GetRoadInfo(roadName);
           
        }
    }

    private void OnTriggerEnter(Collider other)
    {
        if (other.gameObject.tag == "Car")
        {
            GameRoot.Instance.roadSys.SetCheckerValue(this.gameObject.name,1);
            if (roadName != "")
            {
                Vector3 carDir = other.transform.forward.normalized;
                float dot = Vector3.Dot(carDir,this.transform.forward.normalized);
                switch (type)
                {
                    case CheckerDirType.Up:
                        if (dot >= 0)
                        {
                            info.carFlow += 1;
                        }
                        else
                        {
                            info.carFlow -= 1;
                        }
                        break;
                    case CheckerDirType.Down:
                        if (dot >= 0)
                        {
                            info.carFlow -= 1;
                        }
                        else
                        {
                            info.carFlow += 1;
                        }
                        break;
                    case CheckerDirType.Left:
                        if (dot >= 0)
                        {
                            info.carFlow -= 1;
                        }
                        else
                        {
                            info.carFlow += 1;
                        }
                        break;
                    case CheckerDirType.Right:
                        if (dot >= 0)
                        {
                            info.carFlow += 1;
                        }
                        else
                        {
                            info.carFlow -= 1;
                        }
                        break;
                }
                
                info.flowRate =Mathf.Lerp(0f,100f,( 1f - info.carFlow/98f));
                GameRoot.Instance.infoWnd.UpdateRoadDict(roadName);

            }
        }
    }

    private void OnTriggerExit(Collider other)
    {
        if (other.gameObject.tag == "Car")
        {
            GameRoot.Instance.roadSys.SetCheckerValue(this.gameObject.name, -1);
        

        }
    }

}