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

public class AimCrossHair : MonoBehaviour
{
    public Camera mainCamera;
    [HideInInspector]
    public PlayerType playerType = PlayerType.FirstPlayer;
    [NonSerialized] public bool outboundLeft;
    [NonSerialized] public bool outboundRight;
    [NonSerialized] public bool outboundUp;
    [NonSerialized] public bool outboundDown;
    private bool visiable = false;

    void Start()
    {
        int currentShootLevel = UserSettings.ins.shootLevel;
        shootBackTime = new int[] { 0, 2, 5 }[currentShootLevel];
        shootOffsetAngleScale = new float[] { 0, 10f, 10f }[currentShootLevel];
    }

    void OnDestroy()
    {
    }

    void Update()
    {
        SetVisiable(onlyShow && GameController.ins.GetArmBowDoublePlayer(playerType).IsCanShoot());

        //if (GetPlayerIndex() == 0)
        //{
        //    UpdatePositionByModuleRotation(mouseTest.Update(0),new Vector4(0,Screen.width*0.5f,Screen.height,0));
        //}
        //else if (GetPlayerIndex() == 1)
        //{
        //    UpdatePositionByModuleRotation(mouseTest.Update(1), new Vector4(Screen.width*0.5f, Screen.width, Screen.height, 0));
        //}
        //if (GameController.ins.gameStart && !GameController.ins.gameOver)
        //{
        //    transform.localScale = Vector3.one;
        //}
        //else transform.localScale = Vector3.zero;
    }
    private bool onlyShow = true;

    public void SetOnlyShow(bool onlyShow)
    {
        this.onlyShow = onlyShow;
    }
    public bool GetOnlyShow()
    {
        return this.onlyShow;
    }
    int GetPlayerIndex()
    {
        return playerType == PlayerType.FirstPlayer ? 0 : 1; //Array.IndexOf(GameController.ins.aimCrossHairs, this);
    }

    //MouseTest mouseTest = new MouseTest();
    class MouseTest
    {
        Quaternion quat = Quaternion.identity;
        float moveSensitivity = 30;
        public Quaternion Update(int type)
        {
            if (type == 0)
            {
                if (Input.GetKey(KeyCode.A))
                {
                    quat = Quaternion.AngleAxis(-moveSensitivity * Time.deltaTime, Vector3.up) * quat;
                }
                else if (Input.GetKey(KeyCode.D))
                {
                    quat = Quaternion.AngleAxis(moveSensitivity * Time.deltaTime, Vector3.up) * quat;
                }
                else if (Input.GetKey(KeyCode.W))
                {
                    quat = Quaternion.AngleAxis(-moveSensitivity * Time.deltaTime, Vector3.right) * quat;
                }
                else if (Input.GetKey(KeyCode.S))
                {
                    quat = Quaternion.AngleAxis(moveSensitivity * Time.deltaTime, Vector3.right) * quat;
                }
            }
            else if (type == 1)
            {
                if (Input.GetKey(KeyCode.LeftArrow))
                {
                    quat = Quaternion.AngleAxis(-moveSensitivity * Time.deltaTime, Vector3.up) * quat;
                }
                else if (Input.GetKey(KeyCode.RightArrow))
                {
                    quat = Quaternion.AngleAxis(moveSensitivity * Time.deltaTime, Vector3.up) * quat;
                }
                else if (Input.GetKey(KeyCode.UpArrow))
                {
                    quat = Quaternion.AngleAxis(-moveSensitivity * Time.deltaTime, Vector3.right) * quat;
                }
                else if (Input.GetKey(KeyCode.DownArrow))
                {
                    quat = Quaternion.AngleAxis(moveSensitivity * Time.deltaTime, Vector3.right) * quat;
                }
            }
            return quat;
        }
    }

    Quaternion currentRotation = Quaternion.identity;
    public void UpdatePositionByModuleRotation(Quaternion moduleRotation,Vector4 bound)
    {
        // 限制模块欧拉角范围
        Vector3 moduleAngles = moduleRotation.eulerAngles;
        moduleAngles.x = Mathf.Clamp(moduleAngles.x > 180 ? moduleAngles.x - 360 : moduleAngles.x, -80, 80);
        moduleAngles.y = Mathf.Clamp(moduleAngles.y > 180 ? moduleAngles.y - 360 : moduleAngles.y, -80, 80);
        moduleRotation = Quaternion.Euler(moduleAngles);
        currentRotation = moduleRotation;

        // 计算准心的世界旋转
        Quaternion rotation = mainCamera.transform.rotation * moduleRotation;

        // 计算准心的世界方向
        Vector3 direction = rotation * Vector3.forward;

        // 计算准心的世界坐标
        Vector3 position = mainCamera.transform.position + direction;

        // 转为屏幕坐标
        Vector3 screenPos = mainCamera.WorldToScreenPoint(position);

        // 标记是否超出屏幕边界
        outboundLeft = screenPos.x < bound.x;//0
        outboundRight = screenPos.x > bound.y;//Screen.width
        outboundUp = screenPos.y > bound.z;//Screen.height
        outboundDown = screenPos.y < bound.w; //0

        // 根据需要的范围进行限制
        screenPos.x = Mathf.Clamp(screenPos.x, bound.x, bound.y); //x->y
        screenPos.y = Mathf.Clamp(screenPos.y, bound.w, bound.z); //w->z

        // 设置准心的位置
        //transform.position = screenPos;
    }

    //射箭姿态记录索引倒退数，根据射击难度制造误差
    [NonSerialized] public int shootBackTime = 0;
    [NonSerialized] public float shootOffsetAngleScale = 0;
    //过去几帧的镜头值记录
   // Quaternion[] cameraRotations = new Quaternion[6];
   // int cameraRotationHasRecordCount = 0;

    public RaycastHit GetRaycastHit()
    {
        float maxDistance = 100;
        int layerMask = 1 << 8; //TargetLayerMask
        if (GetPlayerIndex() == 0)
        {
            layerMask = 1 << 6; // Target1
        }
        else if (GetPlayerIndex() == 1)
        {
            layerMask = 1 << 7; // Target2
        }
        RaycastHit raycastHit;
        Ray ray = mainCamera.ScreenPointToRay(crosshairTran.position, Camera.MonoOrStereoscopicEye.Mono);
        Debug.DrawRay(ray.origin, ray.direction * 1000, Color.yellow,5);
        Physics.Raycast(ray.origin, ray.direction, out raycastHit, maxDistance, layerMask);
        //UnityEditor.EditorApplication.isPaused = true;
        return raycastHit;
    }


    private void ChangeLayer(Transform transform, string layer)
    {
        if (transform.childCount > 0)//如果子物体存在
        {
            for (int i = 0; i < transform.childCount; i++)//遍历子物体是否还有子物体
            {
                ChangeLayer(transform.GetChild(i), layer);//这里是只将最后一个无子物体的对象设置层级
            }
            transform.gameObject.layer = LayerMask.NameToLayer(layer);//将存在的子物体遍历结束后需要把当前子物体节点进行层级设置
        }
        else					//无子物体
        {
            transform.gameObject.layer = LayerMask.NameToLayer(layer);
        }
        if (transform.name == "_hunse_jian") { 
            Debug.Log(transform.gameObject.layer);
        }
    }



    #region 更新中心准心
    RectTransform _parentRTF;
    RectTransform parentRTF
    {
        get
        {
            if (!_parentRTF)
            {
                _parentRTF = transform.parent.GetComponent<RectTransform>();
            }
            return _parentRTF;
        }
    }
    Vector3 centerPoint = new Vector3(0, 1, 0);
    Vector3 targetPosition;
    public Transform crosshairTran;
    public void UpdatePostionWhenFixedCamera(BowCameraDoublePlayer bowCameraDoublePlayer)
    {
        //if (!visiable) return;
        Transform transform = bowCameraDoublePlayer.transform;
        Ray ray = new Ray(transform.position, transform.forward);
        RaycastHit hitInfo;
        if (Physics.Raycast(ray, out hitInfo, 100))
        {
            targetPosition = hitInfo.point;
        }
        else
        {
            targetPosition = transform.position + transform.forward * 100f;
        }
        Vector3 v3 = bowCameraDoublePlayer.bowCameraFixed.camera.WorldToViewportPoint(targetPosition) - centerPoint;
        v3.x *= parentRTF.rect.width * 0.5f;
        v3.y *= parentRTF.rect.height;
        v3.z = 0;
        crosshairTran.localPosition = v3;
        action_UpdatePostionWhenFixedCamera?.Invoke();
    }
    public System.Action action_UpdatePostionWhenFixedCamera;
    //设置准心显示或者隐藏
    void SetVisiable(bool value)
    {
        if (this.visiable == value) return;
        this.visiable = value;
        crosshairTran.GetComponent<Image>().enabled = this.visiable;
    }
    /// <summary>
    /// 同步GetOnlyShow 
    /// </summary>
    public void SyncVisiable()
    {
        this.visiable = GetOnlyShow();
        crosshairTran.GetComponent<Image>().enabled = this.visiable;
    }
    public void openDisplayToCenter()
    {
        if (GetPlayerIndex() == 0)
        {
            crosshairTran.transform.localPosition = new Vector3(0.25f * parentRTF.rect.width, -parentRTF.rect.height * 0.5f, 0);
        }
        else if (GetPlayerIndex() == 1)
        {
            crosshairTran.transform.localPosition = new Vector3(0.25f * parentRTF.rect.width, -parentRTF.rect.height * 0.5f, 0);
        }
    }
    #endregion

}