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

namespace YLBattle
{
    public class FightingTipManager : MonoBehaviour
    {
        /// <summary>
        /// 画布
        /// </summary>
        private Canvas m_Canvas = null;

        /// <summary>
        ///坐标 
        /// </summary>
        private RectTransform rectTransform;

        /// <summary>
        /// 实例
        /// </summary>
        static FightingTipManager mInstance;

        /// <summary>
        /// 获取单键
        /// </summary>
        /// <returns>单键实例</returns>
        public static FightingTipManager Instance
        {
            get
            {
                if (mInstance == null)
                {
                    GameObject obj = GameObject.Find("FightingTipManager");
                    if (obj != null)
                    {
                        mInstance = obj.AddComponent<FightingTipManager>();
                    }
                }

                return mInstance;
            }
        }

        void Start()
        {

            m_Canvas = GetComponent<Canvas>();
            rectTransform = m_Canvas.transform as RectTransform;
        }
        /// <summary>
        /// 在目标位置(UI层）上创建特效
        /// </summary>
        /// <param name="Id">目标Id</param>
        /// <param name="resName">资源名称</param>
        /// <param name="posType">位置类型 0=transform脚底 1=shoot/hit 2=指定位置</param>
        public void createPosEffect(string Id, string resName, Vector3 pos, int posType = 0, float time = 1.0f)
        {

            Fighter target = FightingManager.Instance.GetFighter(Id);
            #region 加载准备阶段光效
            ResourceHelper.Instance.LoadAssetBundle(resName, ab =>
            {
                if (ab != null)
                {
                    GameObject comUIEff = (GameObject)Instantiate(ab.LoadAsset(resName));

                    Vector3 targetPos = Vector3.zero;

                    if (posType == 2)
                    {
                        targetPos = WorldToGUI(pos);
                    }
                    else if (target != null)
                    {
                        if (posType == 1)
                        {
                            if (target.mTeam == EBattleTeam.REDTEAM)
                            {
                                targetPos = WorldToGUI(target.mBodyCenterPos);
                            }
                            else
                            {
                                targetPos = target.mBodyCenterPos;
                            }
                        }
                        else
                        {
                            if (target.mTeam == EBattleTeam.REDTEAM)
                            {
                                targetPos = WorldToGUI(target.mBodyRootPos);
                            }
                            else
                            {
                                targetPos = target.mBodyRootPos;
                            }
                        }
                    }

                    this.TranformHandle(comUIEff.transform, targetPos);
                    ExplodeBase exloreScript = comUIEff.GetComponent<ExplodeBase>();
                    if (exloreScript != null)
                    {
                        exloreScript.enabled = false;
                    }
                    ///(用于非战斗的定点位置爆炸跟踪使用)
                    ExplodeTraceBase explode = comUIEff.GetComponent<ExplodeTraceBase>();
                    if (explode == null)
                    {
                        explode = comUIEff.AddComponent<ExplodeTraceBase>();
                    }

                    explode.lifeTime = time;
                    explode.TargetId = Id;
                    explode.posType = posType;

                }
                else
                {
                    LogHelper.LogWarning("特效模版数据有误!!!  " + resName);
                }
            });
            #endregion
        }
        /// <summary>
        /// 
        /// </summary>
        /// <returns></returns>
        public Vector3 WorldToGUI(Vector3 orgPos)
        {
            Vector2 pos;
            Vector3 screenPos = CameraManager.Instance.SenceCamara.WorldToScreenPoint(orgPos);
            RectTransformUtility.ScreenPointToLocalPointInRectangle(this.rectTransform,
                screenPos, CameraManager.Instance.SenceTIPCamera, out pos);
            return pos;
        }

        /// <summary>
        /// Tranform的处理，3D->UI
        /// </summary>
        /// <param name="model"></param>
        /// <param name="trgPos"></param>
        public void TranformHandle(Transform model, Vector3 trgPos)
        {
            Transform[] all = model.GetComponentsInChildren<Transform>();

            ///默认UI相机照射所有特效
            ///如果是bomb在敌人身上（3D)身上，则使用3D摄像机；
            foreach (Transform rc in all)
            {
                rc.gameObject.layer = LayerMask.NameToLayer("Tip"); //指定Layer 
            }

            model.transform.SetParent(transform);
            model.transform.position = trgPos;
            model.transform.rotation = Quaternion.identity;
            model.transform.localScale = new Vector3(1, 1, 1);
        }
    }

}