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

/// <summary>
/// 掉落的道具
/// </summary>
public class DropItem : MonoBehaviour
{
    /// <summary>
    /// 方向
    /// </summary>
    private Vector3 mDir = Vector3.zero;

    private float mSpeedX = 10;
    private float mSpeedY = 4.0F;
    private float gravity = 20.0F;
    private Vector3 moveDirection = Vector3.zero;
    private bool mFly = false;

    /// <summary>
    /// 道具ID
    /// </summary>
    public int m_ItemID = 0;

    /// <summary>
    /// 道具名称
    /// </summary>
    public string m_ItemName = string.Empty;

    /// <summary>
    /// 稀有度
    /// </summary>
    public int m_Star = 1;

    /// <summary>
    /// 是否一次性
    /// </summary>
    public bool m_Once = true;

    /// <summary>
    /// 是否使用过
    /// </summary>
    public bool m_Used = false;

    /// <summary>
    /// CD
    /// </summary>
    public float m_CDTime = 60;

    /// <summary>
    /// 当前的CD时间
    /// </summary>
    private float mCurDCTime = 0;

    /// <summary>
    /// 是否CD中
    /// </summary>
    private bool mCD = false;

    /// <summary>
    /// 控制器
    /// </summary>
    private CharacterController _CharacterController = null;

    /// <summary>
    /// 特效
    /// </summary>
    private Transform mEffectTransform = null;

    public EItemType mType = EItemType.EIT_NONE;

    private BoxCollider _BoxCollider = null;

    /// <summary>
    /// 更新飞
    /// </summary>
    private bool _updateFly = true;

    private void Awake()
    {
        mEffectTransform = transform.Find("bisha/guangtiao");
    }

    /// <summary>
    /// 初始化
    /// </summary>
    /// <param name="itemId">物品ID</param>
    /// <param name="xSpeed">X轴速度</param>
    /// <param name="ySpeed">Y速度</param>
    /// <param name="dir">方向</param>
    public void Init(int itemId, string _name, int star, EItemType type, float xSpeed, float ySpeed, Vector3 dir)
    {
        m_ItemID = itemId;
        m_ItemName = _name;
        m_Star = star;
        mSpeedX = xSpeed;
        mSpeedY = ySpeed;
        mDir = dir;
        mFly = true;
        _updateFly = true;
        _CharacterController = GetComponent<CharacterController>();
        _CharacterController.enabled = true;
        _BoxCollider = GetComponent<BoxCollider>();
        _BoxCollider.enabled = false;
        mType = type;

        moveDirection = mDir;
        moveDirection *= mSpeedX;
        moveDirection.y = mSpeedY;

        // 忽略碰撞层
        Physics.IgnoreLayerCollision(LayerMask.NameToLayer("Player"), LayerMask.NameToLayer("Item"), true);
    }

    /// <summary>
    /// 是否CD
    /// </summary>
    public bool CD
    {
        get
        {
            return mCD;
        }

        set
        {
            mCD = value;
            if (mCD && mEffectTransform)
            {
                mEffectTransform.gameObject.SetActive(false);
            }
        }
    }

    /// <summary>
    /// 更新
    /// </summary>
    private void Update()
    {
        if (_updateFly && _CharacterController != null)
        {
            if (_CharacterController.isGrounded)
            {
                if (mFly == false)
                {
                    moveDirection = mDir;
                    moveDirection *= mSpeedX;
                    moveDirection.y = mSpeedY;
                    mFly = true;
                }
                else
                {
                    _updateFly = false;
                    _BoxCollider.enabled = true;
                    _CharacterController.enabled = false;

                    // 恢复碰撞层
                    Physics.IgnoreLayerCollision(LayerMask.NameToLayer("Player"), LayerMask.NameToLayer("Item"), false);
                    return;
                }
            }
            moveDirection.y -= gravity * Time.deltaTime;
            _CharacterController.Move(moveDirection * Time.deltaTime);
        }

        if (CD)
        {
            mCurDCTime += Time.deltaTime;
            if (mCurDCTime >= m_CDTime)
            {
                CD = false;
                mCurDCTime = 0;

                if (mEffectTransform)
                {
                    mEffectTransform.gameObject.SetActive(true);
                }
            }
        }
    }
}