using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using DG.Tweening;

public class DropItemFollow : MonoBehaviour
{
    public enum AbsorbEffType
    {
        empty = 0,
        glod = 1,
    }
    public GameObject target = null;
    public AbsorbEffType effType = AbsorbEffType.empty;
    private void Update()
    {
        if(target)
        {
            this.transform.DOMove(target.transform.position, 1.0f);
            if(Vector3.Distance( this.transform.position, target.transform.position) < 1.0f)
            {
                // 增加拾取特效
                if(effType == AbsorbEffType.glod)
                {
                    ResourceHelper.Instance.LoadAssetBundle("jinbi_shouji_tishi", (ab) =>
                    {
                        if (ab != null)
                        {
                            GameObject eff = (GameObject)Instantiate(ab.LoadAsset("jinbi_shouji_tishi"));
                            eff.transform.parent = target.transform.Find("FBX/Effect_000/Top").transform;
                            eff.transform.localPosition = Vector3.zero;
                        }
                    });
                }
                GameObject.Destroy(this.gameObject);
            }
        }
    }
}
public class DropItemAuto : MonoBehaviour
{
    /// <summary>
    /// 方向
    /// </summary>
    private Vector3 mDir = Vector3.zero;

    public float mSpeedX = 2;
    public float mSpeedY = 10;
    public float gravity = 20.0F;
    private Vector3 moveDirection = Vector3.zero;
    private bool mFly = false;
    private bool mUpdate = false;

    public ItemVo mItemVo = null;

    /// <summary>
    /// 自身
    /// </summary>
    private Transform mTransform = null;

    /// <summary>
    /// 目标
    /// </summary>
    private Transform mTargetTransform = null;
    private Tween mtweener = null;
    private bool tweenFly = false;
    private Role role = null;
    private GameObject eff = null;
    public void Init(Transform role, ItemVo vo)
    {
        mTargetTransform = role;
        mTransform = transform;
        mFly = false;
        mUpdate = false;

        mFly = false;
        mUpdate = false;
        mItemVo = vo;

        if ((EItemSubType)mItemVo.nMo.subType == EItemSubType.BattleItem_HP || (EItemSubType)mItemVo.nMo.subType == EItemSubType.BattleItem_MP)
        {
            // do nothing
        }
        else
        {
            Invoke("LateMove", 6.0f);
        }

        InvokeRepeating("CheckPlayer", 1.0f, 0.3f);
        Invoke("LateDestroy", 30);

    }

    public void Init(ItemVo vo)
    {
        mFly = false;
        mUpdate = false;

        mItemVo = vo;

        InvokeRepeating("CheckPlayer", 0.1f, 0.3f);
        Invoke("LateDestroy", 30);
    }

    /// <summary>
    /// 延迟销毁
    /// </summary>
    private void LateDestroy()
    {
        DropManager.Instance.RemoveDropItem(this);
    }

    private void OnDisable()
    {
        if (IsInvoking("CheckPlayer"))
        {
            CancelInvoke("CheckPlayer");
        }
    }

    /// <summary>
    /// 检测玩家
    /// </summary>
    private void CheckPlayer()
    {
        if(tweenFly)
        {
            return;
        }
        // 检测身边是否有道具
        Collider[] colliders = Physics.OverlapSphere(transform.position, 1.5f, 1 << LayerMask.NameToLayer("Player"));
        if (colliders != null && colliders.Length > 0)
        {
            for (int i = 0; i < colliders.Length; i++)
            {
                role = colliders[i].GetComponent<Role>();
                if(role == null || mItemVo == null)
                {
                    continue;
                }

                if ((EItemSubType)mItemVo.nMo.subType == EItemSubType.BattleItem_HP)
                {
                    role.mData.UpdateHP(mItemVo.nMo.GetPillsExt().number, true);
                    role.UpdateHP(mItemVo.nMo.GetPillsExt().number);
                    AudioManager.Instance.PlayUISoundEffect("捡起药水");
                }
                else if ((EItemSubType)mItemVo.nMo.subType == EItemSubType.BattleItem_MP)
                {
                    role.mData.UpdateMP(mItemVo.nMo.GetPillsExt().number, true);
                    AudioManager.Instance.PlayUISoundEffect("捡起药水");
                }
                else
                {
                    ItemProxy.Instance.AddItem(int.Parse(mItemVo.typeId), mItemVo.count);
                    if ((EItemSubType)mItemVo.nMo.subType == EItemSubType.Gold)
                    {
                        AudioManager.Instance.PlayUISoundEffect("捡起金币");
                    }
                    else if ((EItemSubType)mItemVo.nMo.subType == EItemSubType.Gem)
                    {
                        AudioManager.Instance.PlayUISoundEffect("捡起宝石");
                    }
                    else if ((EItemSubType)mItemVo.nMo.subType == EItemSubType.Weapon ||
                        (EItemSubType)mItemVo.nMo.subType == EItemSubType.Segment ||
                        (EItemSubType)mItemVo.nMo.subType == EItemSubType.YanlingBookSegement ||
                        (EItemSubType)mItemVo.nMo.subType == EItemSubType.Hunqi ||
                        (EItemSubType)mItemVo.nMo.subType == EItemSubType.YanLingAdvancedStone ||
                        (EItemSubType)mItemVo.nMo.subType == EItemSubType.WuqiAdvancedStone ||
                        (EItemSubType)mItemVo.nMo.subType == EItemSubType.Box)
                    {
                        AudioManager.Instance.PlayUISoundEffect("捡起装备");
                    }
                    else
                    {
                        AudioManager.Instance.PlayUISoundEffect("捡起材料");
                    }
                }
                tweenFly = true;
                // 增加拾取特效
                ResourceHelper.Instance.LoadAssetBundle("shiqu_tuowei",(ab)=>
                {
                    if (ab != null )
                    {
                        eff = (GameObject)Instantiate(ab.LoadAsset("shiqu_tuowei"));
                        eff.transform.localPosition = this.transform.position;
                        //CmptAutoDestory des = eff.AddComponent<CmptAutoDestory>();
                        //des.LiveTime = 2.0f;
                        var s = DOTween.Sequence();
                        eff.transform.DOMove(this.transform.position + Vector3.up * 4, 0.7f).OnComplete(()=>
                        {
                            DropItemFollow follow = eff.AddComponent<DropItemFollow>();
                            follow.target = role.gameObject;
                            if ((EItemSubType)mItemVo.nMo.subType == EItemSubType.Gold)
                            {
                                follow.effType = DropItemFollow.AbsorbEffType.glod;
                            }
                        });
                        
                        //mtweener = eff.transform.DOMove(this.transform.position + Vector3.up * 5, 1.0f);
                        //mtweener.OnComplete(()=>
                        //{
                        //    tweenFly = true;
                        //});
                        DropManager.Instance.RemoveDropItem(this);
                    }
                });
                
                return;
            }
        }
    }

    /// <summary>
    /// 延迟开始移动
    /// </summary>
    private void LateMove()
    {
        mFly = true;
        mUpdate = true;

        // 隐藏道具名称
        HpbarManager.Instance.HideItemName(transform);
    }
}