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

/// <summary>
/// 弓箭手状态枚举
/// </summary>
public enum ArmBowState
{
    none,
    /// <summary>待机 </summary>
    idel,
    /// <summary>准备 </summary>
    prepare,
    /// <summary>瞄准 </summary>
    ain,
    /// <summary>射击 </summary>
    launch,
}
/// <summary>
/// 播放动画命常量
/// </summary>
public class ArmBowAnimConstName
{
   public const string IDEL = "dajian";
   public const string PREPARE = "lagong";
   public const string LAUNCH = "fire";
}

/// <summary>
/// 弓箭手控制器类
/// </summary>
public class LauncherCtrl : MonoBehaviour
{
    public static LauncherCtrl instance;
    [SerializeField] GameObject go_Bullet;
    public Transform crossHair; //测试 瞄准得目标点

    /// <summary>
    /// 枪的观察相机
    /// </summary>
    public Camera launcherCamera;
    /// <summary>
    /// 枪模型
    /// </summary>
    public MeshRenderer go_GunModel;
    /// <summary>
    /// 枪口位置
    /// </summary>
    public GameObject gunPoint;
    ArmBowState armBowState = ArmBowState.none;

    int bulletCount; //可发射得子弹数量


    //触摸检测器
    JC.Unity.TouchChecker touchChecker = new JC.Unity.TouchChecker();
    //触摸模式开关
    private static bool _isTouchMode = true;
    private bool isOnUIEnter = false;
    public static bool isTouchMode
    {
        get
        {
            // if (CommonConfig.isReleaseVersion) return false;
            return _isTouchMode;
        }
        set
        {
            _isTouchMode = value;
        }
    }

    //左右转动范围限制
    float[] limitRangeRotateY = { -40, 40 };
    //上下转动范围限制
    float[] limitRangeRotateX = { -25, 15 };
    //本地欧拉角记录值
    Vector3 localEulerAngles;


    /// <summary>准心图片 </summary>
    public Image img_Anim;
    private Vector2 vec_AinPos = new Vector2(10000, 10000);

    /// <summary>是否显示准心 </summary>
    public bool isShowAni = true;

    void Awake()
    {
        instance = this;
        //this.transform.localPosition = new Vector3(0.0865f, -1.692f, -0.1f);
        ////设置播放次数 ，不循环，只播放一次。（可以在当个动画模型里面修改，也可以代码同意修改播放器设置）
        //anim_Arrow.wrapMode = WrapMode.Once;
        //anim_Bow.wrapMode = WrapMode.Once;

        if (launcherCamera == null)
        {
            launcherCamera = transform.parent.GetComponent<Camera>();
        }

        if (gunPoint ==  null || go_GunModel == null)
        {
            go_GunModel = transform.Find("qiang").GetComponent<MeshRenderer>(); ;
            gunPoint = transform.Find("qiang/GunPoint").gameObject;
        }

        if (go_Bullet == null )
        {
            go_Bullet = transform.Find("qiang/GunPoint/Bullet").gameObject;
        }

        localEulerAngles = transform.localEulerAngles;

        touchChecker.onBegan += delegate (Touch t, bool isOnUI)
        {
            // Debug.Log(isOnUI);
            this.isOnUIEnter = isOnUI;
            if (isOnUI) return;
            PinBallUIManager.instance.BroadcastUI(new object[] { "GameView", true, 3, true });
        };

        touchChecker.onMoved += delegate (Touch t, bool isOnUI)
        {
            // Debug.Log(isOnUI);
            // if (banLogic) return;
            // if (isOnUI) return;
            if (isOnUIEnter) return;
            //触摸控制镜头和拉弓射箭
            this.localEulerAngles.x = Mathf.Clamp(this.localEulerAngles.x - t.deltaPosition.y * Time.deltaTime * 5, limitRangeRotateX[0], limitRangeRotateX[1]);
            this.localEulerAngles.y = Mathf.Clamp(this.localEulerAngles.y + t.deltaPosition.x * Time.deltaTime * 5, limitRangeRotateY[0], limitRangeRotateY[1]);
            this.transform.localEulerAngles = this.localEulerAngles;
        };
        touchChecker.onEnded += delegate (Touch t, bool isOnUI)
        {
            // if (banLogic) return;
            this.isOnUIEnter = false;
            PinBallUIManager.instance.BroadcastUI(new object[] { "GameView", true, 3, false });
            if (!isOnUI)
                Shoot();// armBow.ADS_fire();
        };

        img_Anim = transform.Find("AniCanvas/Image_Ani").GetComponent<Image>();
    }


    #region add by JC
    void Start()
    {
        if (AimHandler.ins) AimHandler.ins.onGameRotationUpdate += OnGameRotationUpdate;
        if (ShootCheck.ins) ShootCheck.ins.onShoot += OnGameShoot;
    }
    void OnDestroy()
    {
        if (AimHandler.ins) AimHandler.ins.onGameRotationUpdate -= OnGameRotationUpdate;
        if (ShootCheck.ins) ShootCheck.ins.onShoot -= OnGameShoot;
    }
    void OnGameRotationUpdate(Quaternion quat)
    {
        Vector3 angles = quat.eulerAngles;
        angles.x = angles.x > 180 ? angles.x - 360 : angles.x;
        angles.y = angles.y > 180 ? angles.y - 360 : angles.y;
        angles.x = Mathf.Clamp(angles.x, limitRangeRotateX[0], limitRangeRotateX[1]);
        angles.y = Mathf.Clamp(angles.y, limitRangeRotateY[0], limitRangeRotateY[1]);
        this.transform.localEulerAngles = angles;
    }
    void OnGameShoot(float speed)
    {
        this.Shoot();
    }
    #endregion


    public void SetArrowCount( int count)
    {
        bulletCount = count;
    }

    /// <summary>
    /// 准备射击
    /// </summary>
    public void ReadyShoot()
    {
        //如果不是空状态，直接跳出
        if (armBowState != ArmBowState.none)
        {
            return;
        }
        armBowState = ArmBowState.idel;
    }

    public void ReadyShoot(int count)
    {
        SetArrowCount(count);
        armBowState = ArmBowState.ain;
    }

    public void ShowGunModel(bool value)
    {
        go_GunModel.enabled = value;
    }

    public void ShowAni(bool value)
    {
        isShowAni = value;
        img_Anim.gameObject.SetActive(isShowAni);
    }

    /// <summary>
    /// 射击
    /// </summary>
    public void Shoot()
    {
        if (bulletCount <= 0)
        {
            return;
        }
        //有其他地方调用，判断一下是否瞄准状态下
        //if (armBowState != ArmBowState.ain)
        //{
        //    return;
        //}
        //armBowState = ArmBowState.launch;
        GameObject arw = GameObject.Instantiate(go_Bullet);
        arw.transform.SetParent(go_Bullet.transform.parent);
        arw.transform.localPosition = go_Bullet.transform.localPosition;
        arw.transform.localRotation = go_Bullet.transform.localRotation;
        arw.transform.localScale = go_Bullet.transform.localScale;
        arw.SetActive(true);

        BulletCtrl arwCtrl = arw.AddComponent<BulletCtrl>();
        arw.transform.SetParent(null);
        //箭矢发射的目标以及方向
        arwCtrl.PlayShoot(gunPoint);
        AudioMgr.instance.PlaySound();
        //子弹数量
        bulletCount--;
        PinBallUIManager.instance.BroadcastUI(new object[] { "GameView", true, 2 , bulletCount });

    }

    /// <summary>
    /// 结束射击
    /// </summary>
    public void EndShoot()
    {
        armBowState = ArmBowState.none;
    }


    private void Update()
    {
        //简单的有限状态机
        switch (armBowState)
        {
            case ArmBowState.idel:
                break;
            case ArmBowState.prepare:
                break;
            case ArmBowState.ain:
                AniState();
                break;
            case ArmBowState.launch:
                break;
            default:
                break;
        }
    }

    /// <summary>
    /// 瞄准状态，可以开启 允许移动摄像机，点击发射等功能
    /// </summary>
    private void AniState()
    {
        if (bulletCount <= 0)
            return;

        if (Application.platform == RuntimePlatform.WindowsEditor)
        {
            if (Input.GetMouseButton(0))
            {
                if (isOnUIEnter) return;
                //鼠标控制镜头和拉弓射箭
                this.localEulerAngles.x = Mathf.Clamp(this.localEulerAngles.x - 2f * Input.GetAxis("Mouse Y"), limitRangeRotateX[0], limitRangeRotateX[1]);
                this.localEulerAngles.y = Mathf.Clamp(this.localEulerAngles.y + 2f * Input.GetAxis("Mouse X"), limitRangeRotateY[0], limitRangeRotateY[1]);
                this.transform.localEulerAngles = this.localEulerAngles;
            }
            if (Input.GetMouseButtonDown(0))
            {
                isOnUIEnter = EventSystem.current.IsPointerOverGameObject();
                if (isOnUIEnter) return;
                PinBallUIManager.instance.BroadcastUI(new object[] { "GameView", true, 3 ,true });
               // print("按下鼠标");
            }
            if (Input.GetMouseButtonUp(0))
            {
                isOnUIEnter = false;
                PinBallUIManager.instance.BroadcastUI(new object[] { "GameView", true, 3, false });
                if (EventSystem.current.IsPointerOverGameObject())
                {
                    //Debug.Log("点击到UI");
                }
                else
                {
                    Shoot();
                }
            }
            
        }
        else if (isTouchMode)
        {
             touchChecker.Update();
        }

        //开启准心
        if (isShowAni)
        {
            Vector2 uguiPos = Vector2.zero;            
            Ray ray = new Ray(gunPoint.transform.position, transform.TransformDirection(Vector3.forward));
            Vector3 viewportPos = launcherCamera.WorldToViewportPoint(ray.GetPoint(GameInstantiateData.Instance.int_CameraToCastleDis ));
            uguiPos.x = (viewportPos.x - 0.5f) * 1280; // canvasRtm.sizeDelta.x;
            uguiPos.y = (viewportPos.y - 0.5f) * 720;// canvasRtm.sizeDelta.y;
            img_Anim.transform.localPosition = uguiPos;
        }
    }

    /// <summary>
    /// 测试使用
    /// </summary>
    private void OnDrawGizmos()
    {
        //Debug.DrawRay(launcherCamera.transform.position, transform.TransformDirection(Vector3.forward) * 200, Color.green);//绘制射线
        //Debug.DrawRay(gunPoint.transform.position, transform.TransformDirection(Vector3.forward) * 200, Color.green);//绘制射线
    }
}