using AX.MessageSystem;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class CarAnimationCtrl : MonoBehaviour
{

    private Animator anim;
    private UnityEngine.AI.NavMeshAgent _NavMeshAgent;
    /// <summary>小车是否前进</summary>
    private bool isRun = false;
    /// <summary>下一个路点</summary>
    private Vector3 pathPoint;
    /// <summary>寻路路径的所有路点</summary>
    public List<Vector3> nowpath;
    /// <summary>路点的索引</summary>
    public int pathIndex = 0;
    public GameObject cube;

    /// <summary> 限制车轮转向 </summary>
    //private bool wheelLimit =true;
    /// <summary>记录出发路点 </summary>
    private Vector3 initPoint;
    // Use this for initialization
    void Awake()
    {
        anim = GetComponent<Animator>();
        _NavMeshAgent = GetComponent<UnityEngine.AI.NavMeshAgent>();
        nowpath = GetComponent<AgentController>().corners;
        //MessageDispatcher.AddListener("PackUpTheLiftArm", Up);
        //MessageDispatcher.AddListener("FixedSupport", Down);
        MessageDispatcher.AddListener("SetpathIndex", PathFinding);
    }

    private void OnDestroy()
    {
        //MessageDispatcher.RemoveListener("PackUpTheLiftArm", Up);
        //MessageDispatcher.RemoveListener("FixedSupport", Down);
        MessageDispatcher.RemoveListener("SetpathIndex", PathFinding);
    }
    void PathFinding(IMessage obj)
    {
        if ((long)obj.Sender == GetComponent<BaseGameObjInfo>().GameObjID)
        {
            pathIndex = 0;
        }
    }
    public void Down()
    {

        //var gameObjID = (long)obj.Sender;
        //if (gameObjID == GetComponent<BaseGameObjInfo>().GameObjID)
        //{
        _NavMeshAgent.SetDestination(this.transform.position);
        anim.speed = 1;
        anim.SetBool("ZJ", true);
        //}
    }


    public void Up()
    {
        //var gameObjID = (long)obj.Sender;
        //if (gameObjID == GetComponent<BaseGameObjInfo>().GameObjID)
        //{
        anim.speed = 5;
        anim.SetBool("ZJ", false);
        //}
    }
    public void AnimStopEvent()
    {
        anim.speed = 0;
        anim.SetBool("ZJ", false);
    }

    private void Update()
    {
        if (!_NavMeshAgent.enabled)
        {
            return;
        }

        if (_NavMeshAgent.velocity.magnitude > 0)
        {
            isRun = true;
            anim.speed = 1;
            AnimLimit();
        }
        else
        {
            isRun = false;
        }
        forward(isRun);
    }
    public void forward(bool isRun)
    {
        if (isRun)
            anim.SetFloat("WS", 1);
        else
            anim.SetFloat("WS", 0);
        if (isRun)
            anim.SetFloat("AD", RightOrLeft());
        else
            anim.SetFloat("AD", 0);
    }
    /// <summary>判断方位的值 右边1 左边-1 正对0</summary>
    private float crossValue;
    /// <summary>判断拐点相对车的方位</summary>
    private float RightOrLeft()
    {
        Vector3 vectorTarget = pathPoint - transform.position;
        vectorTarget = new Vector3(vectorTarget.x, 0, vectorTarget.z);
        Vector3 vectorForward = transform.forward;
        float dotValue = Vector3.Dot(vectorForward.normalized, vectorTarget.normalized);
        crossValue = Vector3.Dot(vectorTarget.normalized, transform.right);
        if (crossValue > 0.05)//&& !_LineamentEvent.ControlJuBi
            return 1;
        else if (crossValue < -0.05)//&& !_LineamentEvent.ControlJuBi
            return -1;
        else
            return 0;
    }

    /// <summary> 转向修正</summary>
    private void AnimLimit()
    {
        if (nowpath == null)
        {
            Debug.Log("消防车发生异常移动");
            return;
        }
        if (nowpath.Count > 0 && pathIndex == 0)//如果开始寻路初始化下一路点
        {
            pathPoint = nowpath[0];
        }
        if (pathIndex < nowpath.Count - 1 && Vector3.Distance(transform.position, pathPoint) < 0.05)//如果到达路点 索引+1
        {
            initPoint = nowpath[pathIndex];
            pathIndex++;
            pathPoint = nowpath[pathIndex];
        }
        if (nowpath.Count > 0 && pathIndex < nowpath.Count - 1 && Vector3.Distance(transform.position, initPoint) > 3)//小车行驶过当前路点
        {
            if (!AboutCount(transform.forward, (pathPoint - transform.position).normalized))//判断小车朝向下一路点是否正确
            {
                pathIndex++;
                pathPoint = nowpath[pathIndex];
            }
        }

    }
    /// <summary>计算两个坐标是否相同（约等于）</summary>
    private bool AboutCount(Vector3 a, Vector3 b)
    {
        if (IsEquality(a.x, b.x) && IsEquality(a.y, b.y) && IsEquality(a.z, b.z))
            return true;
        else
            return false;
    }
    /// <summary>两个数是否约等</summary>
    private bool IsEquality(float x, float y)
    {
        if (x > y && x - y < 0.05)
            return true;
        else if (x <= y && y - x < 0.05)
            return true;
        else
            return false;
    }
}