using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using HTC.UnityPlugin.Vive;

//教程部分的关卡
//玩家一旦进入该场景,会提前弹出窗口,询问是否进行教学
//如果不需要,自动解除像素
public class PixelAppear : MonoBehaviour {
    public GameObject box_;
    public GameObject pixelImage;
    public GameObject[] PannelObj;
    private GameObject newPixel;
    private Pixel pixelList;
    private bool isDisappearing;
    public GameObject[] allPixelO;
    private List<Pixel> allPixelI;
    //是否需要进行教程(不再提示)
    private bool isNeedTeach;
    //是否需要进行教程(提示)
    private bool confirmNeedTeach;
    //获取镜头
    private GameObject Camera_;
    //获取右侧手柄
    private GameObject rightHand_;
    //获取玩家对象
    private GameObject Player_;
    //教学步骤
    private int teachingStep_;
    public GameObject[] ConfirmCamera_;
    public GameObject ConfirmCameraAll_;
    public GameObject[] ConfirmHand;
    public GameObject ConfirmHandAll_;
    public GameObject[] ConfirmFeet;
    public GameObject ConfirmFeetAll_;
    public GameObject TeachingArrow_;
    public GameObject TeachingMoving_;
    public GameObject TeachingUsing_;
    //教学文字
    public Text teachingTxt;


    // Use this for initialization
    void Start () {
        pixelAppear();
        isDisappearing = false;
        Camera_ = GameObject.FindGameObjectWithTag("MainCamera");
        rightHand_ = GameObject.FindGameObjectWithTag("rightHand");
        Player_ = GameObject.FindGameObjectWithTag("Player");
        teachingStep_ = 0;
        StartSelect();
    }
	
	// Update is called once per frame
	void Update () {
        /*if (Input.GetKeyDown(KeyCode.A)) {
            isDisappearing = true;
        }*/
        if (isDisappearing) {
            /*foreach (Pixel pixelI in allPixelI) {
                pixelI.disappearPixel();
            }*/
            pixelDisappear();
        }
        box_.transform.position = new Vector3(Camera_.transform.position.x, 1.3f, Camera_.transform.position.z-1.5f);

	}

    //制造像素,并把像素放置在固定的数组里面
    void pixelAppear() {
        for (int panel_num = 0; panel_num < PannelObj.Length; panel_num++) { 
            for (int j = 0; j < 15; j++)
            {
                for (int i = 0; i < 15; i++)
                {
                    newPixel = Instantiate(pixelImage, PannelObj[panel_num].transform);
                    newPixel.transform.localPosition = new Vector3(i * 4f - 28f, j * 4f - 28f, 0f);
                    //pixelArray.Add(newPixel);
                    pixelList = newPixel.GetComponent<Pixel>();
                    pixelList.x = i;
                    pixelList.y = j;
                    //float actionNo = (Mathf.Abs(7 - i) + Mathf.Abs(7 - j));
                    pixelList.randomTime = Random.Range(0.75f,3.5f);
                }
            }
        }
    }

    void pixelDisappear() {
        allPixelO = GameObject.FindGameObjectsWithTag("Pixel");
        
        for (int i = 0;i<allPixelO.Length;i++) {
            //print(allPixelO[i].GetComponent<Pixel>().x);
            allPixelO[i].GetComponent<Pixel>().disappearPixel();
        }
        //isDisappearing = true;
    }

    //开始时是否进行教程操作
    private void StartSelect() {
        StartCoroutine(TeachActionAll());
    }
    //教程逻辑实现
    IEnumerator TeachActionAll() {
        print("StartTeaching");
        yield return StartCoroutine(TeachAction_0());
        print("EndTeaching");
        isDisappearing = true;
    }

    //确认是否跳过教程
    IEnumerator TeachAction_0() {
        while (teachingStep_ != -1) {
            if (ViveInput.GetPress(HandRole.RightHand, ControllerButton.Trigger))
            {
                teachingStep_ = 1;
                yield return StartCoroutine(TeachAction_1());
                yield return StartCoroutine(TeachAction_2());
                yield return StartCoroutine(TeachAction_3());
                yield return StartCoroutine(TeachAction_4());
                yield return StartCoroutine(TeachAction_5());
                yield return StartCoroutine(TeachAction_6());
                yield return StartCoroutine(TeachAction_end());
                teachingStep_ = -1;
            }
            else if (ViveInput.GetPress(HandRole.LeftHand, ControllerButton.Trigger))
            {
                yield return StartCoroutine(TeachAction_end());
                teachingStep_ = -1;
            }
            yield return new WaitForEndOfFrame();
        }
        yield return null;
    }

    //教程1
    IEnumerator TeachAction_1() {
        ConfirmCameraAll_.SetActive(true);
        teachingTxt.text = "请上下左右晃动头部,检测头盔精度";
        Vector3 startPos = Camera_.transform.localEulerAngles;
        int correctCamera = 0;
        float radiusX = 0;
        float radiusY = 0;
        ImageChange_ imageChangeScript1 = ConfirmCamera_[0].GetComponent<ImageChange_>();
        ImageChange_ imageChangeScript2 = ConfirmCamera_[1].GetComponent<ImageChange_>();
        ImageChange_ imageChangeScript3 = ConfirmCamera_[2].GetComponent<ImageChange_>();
        ImageChange_ imageChangeScript4 = ConfirmCamera_[3].GetComponent<ImageChange_>();
        while (teachingStep_ != 2) {
            radiusX = Camera_.transform.localEulerAngles.x - startPos.x;
            radiusY = Camera_.transform.localEulerAngles.y - startPos.y;
            if (radiusX < -180f) {
                radiusX += 360f;
            } else if (radiusX >180f) {
                radiusX -= 360f;
            }
            if (radiusY < -180f)
            {
                radiusY += 360f;
            }else if (radiusY > 180f)
            {
                radiusY -= 360f;
            }
            if (!imageChangeScript1.ischange && radiusX < -30f) {
                imageChangeScript1.SetChange();
                startPos = Camera_.transform.localEulerAngles;
                correctCamera++;
            }
            if (!imageChangeScript2.ischange && radiusX > 30f)
            {
                imageChangeScript2.SetChange();
                startPos = Camera_.transform.localEulerAngles;
                correctCamera++;
            }
            if (!imageChangeScript3.ischange && radiusY < -30f)
            {
                imageChangeScript3.SetChange();
                startPos = Camera_.transform.localEulerAngles;
                correctCamera++;
            }
            if (!imageChangeScript4.ischange && radiusY > 30f)
            {
                imageChangeScript4.SetChange();
                startPos = Camera_.transform.localEulerAngles;
                correctCamera++;
            }
            if (correctCamera == 4)
            {
                teachingStep_ = 2;
            }
            yield return new WaitForEndOfFrame();
        }
        ConfirmCameraAll_.SetActive(false);
        yield return null;
    }

    //教程2
    IEnumerator TeachAction_2()
    {
        ConfirmHandAll_.SetActive(true);
        teachingTxt.text = "请上下左右晃动右手柄,检测手部精度";
        Vector3 startPos = rightHand_.transform.position;
        int correctHand = 0;
        float distanceX = 0;
        float distanceY = 0;
        float distanceZ = 0;
        float distanceXZ = 0;
        ImageChange_ imageChangeScript1 = ConfirmHand[0].GetComponent<ImageChange_>();
        ImageChange_ imageChangeScript2 = ConfirmHand[1].GetComponent<ImageChange_>();
        ImageChange_ imageChangeScript3 = ConfirmHand[2].GetComponent<ImageChange_>();
        ImageChange_ imageChangeScript4 = ConfirmHand[3].GetComponent<ImageChange_>();
        while (teachingStep_ != 3)
        {
            distanceX = rightHand_.transform.position.x - startPos.x;
            distanceY = rightHand_.transform.position.y - startPos.y;
            distanceZ = rightHand_.transform.position.z - startPos.z;
            distanceXZ = distanceX + distanceZ;
            if (!imageChangeScript1.ischange && distanceY > 0.2f)
            {
                imageChangeScript1.SetChange();
                startPos = rightHand_.transform.position;
                correctHand++;
            }
            if (!imageChangeScript2.ischange && distanceY < -0.2f)
            {
                imageChangeScript2.SetChange();
                startPos = rightHand_.transform.position;
                correctHand++;
            }
            if (!imageChangeScript3.ischange && distanceXZ > 0.2f)
            {
                imageChangeScript3.SetChange();
                startPos = rightHand_.transform.position;
                correctHand++;
            }
            if (!imageChangeScript4.ischange && distanceXZ < -0.2f)
            {
                imageChangeScript4.SetChange();
                startPos = rightHand_.transform.position;
                correctHand++;
            }
            if (correctHand == 4)
            {
                teachingStep_ = 3;
            }
            yield return new WaitForEndOfFrame();
        }
        ConfirmHandAll_.SetActive(false);
        yield return null;
    }

    //教程3
    IEnumerator TeachAction_3()
    {
        ConfirmFeetAll_.SetActive(true);
        teachingTxt.text = "请在房间进行走动(指现实)";
        Vector3 startPos = Camera_.transform.position;
        int correctFeet = 0;
        float distanceX = 0;
        float distanceZ = 0;
        ImageChange_ imageChangeScript1 = ConfirmFeet[0].GetComponent<ImageChange_>();
        ImageChange_ imageChangeScript2 = ConfirmFeet[1].GetComponent<ImageChange_>();
        ImageChange_ imageChangeScript3 = ConfirmFeet[2].GetComponent<ImageChange_>();
        ImageChange_ imageChangeScript4 = ConfirmFeet[3].GetComponent<ImageChange_>();
        while (teachingStep_ != 4)
        {
            distanceX = Camera_.transform.position.x - startPos.x;
            distanceZ = Camera_.transform.position.z - startPos.z;
            if (!imageChangeScript1.ischange && distanceX > 0.5f)
            {
                imageChangeScript1.SetChange();
                startPos = Camera_.transform.position;
                correctFeet++;
            }
            if (!imageChangeScript2.ischange && distanceX < -0.5f)
            {
                imageChangeScript2.SetChange();
                startPos = Camera_.transform.position;
                correctFeet++;
            }
            if (!imageChangeScript3.ischange && distanceZ > 0.5f)
            {
                imageChangeScript3.SetChange();
                startPos = Camera_.transform.position;
                correctFeet++;
            }
            if (!imageChangeScript4.ischange && distanceZ < -0.5f)
            {
                imageChangeScript4.SetChange();
                startPos = Camera_.transform.position;
                correctFeet++;
            }
            if (correctFeet == 4)
            {
                teachingStep_ = 4;
            }
            yield return new WaitForEndOfFrame();
        }
        ConfirmFeetAll_.SetActive(false);
        isDisappearing = true;
        yield return null;
    }

    //教程4
    IEnumerator TeachAction_4() {
        Player_.GetComponent<MovingCtrol>().enabled = true;
        teachingTxt.text = "按住右手柄的圆板键前进&后退\n转头进行控制方向";
        TeachingArrow_.SetActive(false);
        TeachingMoving_.SetActive(true);
        yield return new WaitForSeconds(10.0f);
        TeachingMoving_.SetActive(false);
        yield return null;
    }

    //教程5
    public GameObject highLightClip;
    public GameObject highLightSwiftArch;
    IEnumerator TeachAction_5() {
        Player_.GetComponent<PlayerControl>().enabled = true;
        Player_.GetComponent<PlayerControl>().Weapon_.SetActive(true);
        teachingTxt.text = "按下左手柄的圆板键切换武器\n十秒后进入下一教学";
        TeachingMoving_.SetActive(false);
        TeachingUsing_.SetActive(true);
        yield return new WaitForSeconds(10.0f);
        //换弹药教学
        teachingTxt.text = "按下左手柄处的手柄键进行换弹";
        Player_.GetComponent<PlayerControl>().lockChange = true;
        Player_.GetComponent<PlayerControl>().padUpPublic();
        bool createClip = false;
        bool releaseClip = false;
        bool releaseSwiftArch = false;
        AkGun ak_ = GameObject.FindGameObjectWithTag("gun").GetComponent<AkGun>();
        while (!createClip) {
            if (ViveInput.GetPress(HandRole.LeftHand, ControllerButton.Grip))
            {
                createClip = true;
            }
            yield return new WaitForEndOfFrame();
        }
        highLightClip.SetActive(true);
        while (!releaseClip) {
            teachingTxt.text = "将左手中的弹药插进弹药槽上";
            if (ak_.getHaveBulletClip()) {
                releaseClip = true;
            };
            yield return new WaitForEndOfFrame();
        }
        highLightClip.SetActive(false);
        highLightSwiftArch.SetActive(true);
        while (!releaseSwiftArch)
        {
            teachingTxt.text = "拉动枪栓后，就完成弹药的装填工作了";
            if (ak_.bulletClip.isUsed) {
                releaseSwiftArch = true;
            }
            yield return new WaitForEndOfFrame();
        }
        highLightSwiftArch.SetActive(false);
        teachingTxt.text = "恭喜您，已经完成了换弹操作!\n五秒后进入下一教学";
        //-------------------------//
        yield return new WaitForSeconds(5.0f);
        teachingTxt.text = "按下右手柄处的手柄键进行治疗";
        bool createNeedle = false;
        bool cureHp = false;
        Player_.GetComponent<Player>().hp = 70;
        while (!createNeedle)
        {
            if (ViveInput.GetPress(HandRole.RightHand, ControllerButton.Grip))
            {
                createNeedle = true;
            }
            yield return new WaitForEndOfFrame();
        }
        while (!cureHp)
        {
            teachingTxt.text = "请对准左手，当针亮起时，按住右扳机进行恢复";
            if (Player_.GetComponent<Player>().hp >= 100)
            {
                cureHp = true;
            }
            yield return new WaitForEndOfFrame();
        }
        teachingTxt.text = "恭喜您，已经完成了治疗操作!\n五秒后进入下一教学";
        Player_.GetComponent<PlayerControl>().gripRightPublic();
        yield return new WaitForSeconds(5.0f);

        TeachingUsing_.SetActive(false);
        yield return null;
    }

    //教程6
    public GameObject highLightSlider;
    IEnumerator TeachAction_6() {
        teachingTxt.text = "请用指针指向其中的一个配件";
        Player_.GetComponent<PlayerControl>().leftPointer.SetActive(true);
        MenuController_2 menu = GameObject.FindGameObjectWithTag("menu").GetComponent<MenuController_2>();
        menu.openMenu(3);
        bool selectItem = false;
        bool installItem = false;
        while (!installItem) {
            if (ViveInput.GetPressDown(HandRole.LeftHand, ControllerButton.Trigger) && selectItem)
            {
                selectItem = false;
                highLightSlider.SetActive(false);
                teachingTxt.text = "请用指针指向其中的一个配件";
            }
            if (!selectItem && !Player_.GetComponent<PlayerControl>().leftPointer.activeSelf) {
                selectItem = true;
                highLightSlider.SetActive(true);
                teachingTxt.text = "请将配件放置在枪的滑槽上面";
            }
            
            if (selectItem && Player_.GetComponent<PlayerControl>().leftPointer.activeSelf) {
                highLightSlider.SetActive(false);
                installItem = true;
            }
            yield return new WaitForEndOfFrame();
        }
        teachingTxt.text = "可以用左手按住扳机拖动刚安装的配件，调整到合适的位置";
        Player_.GetComponent<PlayerControl>().lockChange = false;
        yield return new WaitForSeconds(5.0f);
        teachingTxt.text = "恭喜您，已经完成了所有教学";
        yield return new WaitForSeconds(5.0f);
        yield return null;
    }

    //教程结束
    public GameObject teachScreen;
    IEnumerator TeachAction_end() {
        MenuController_2 menu = GameObject.FindGameObjectWithTag("menu").GetComponent<MenuController_2>();
        menu.openMenu(4);
        teachingTxt.text = "";
        Player_.GetComponent<PlayerControl>().rightPointer.SetActive(true);
        Player_.GetComponent<PlayerControl>().leftPointer.SetActive(true);
        Player_.GetComponent<PlayerControl>().Weapon_.SetActive(false);
        Player_.GetComponent<PlayerControl>().enabled = false;
        Player_.GetComponent<MovingCtrol>().enabled = true;
        box_.SetActive(false);
        teachScreen.SetActive(false);
        yield return null;
    }
}