using CommonAI.Zone;
using CommonAI.Zone.Helper;
using CommonAI.Zone.Instance;
using CommonLang;

namespace XmdsCommonServer.Plugin.Units
{
    /// <summary>
    /// 召唤单位，目前召唤单位AI与宠物相同，先继承自宠物.
    /// </summary>
    public class XmdsInstanceSummonUnit : XmdsInstancePet //InstanceGuard, ViewTrigger.ViewTriggerListener, ISummonedUnit
    {
        public override bool IntersectObj { get { return false; } }
        public XmdsInstanceSummonUnit(InstanceZone zone, UnitInfo info, string name, int force, int level)
            : base(zone, info, name, force, level)
        {
        }
        public InstanceUnit BindUnit { get; set; }

		protected override void onAdded(bool pointLv)
		{
			base.onAdded(pointLv);

			if(this.Info.SumType == CommonAI.Data.SummonType.attack)
			{
				base.SetFollowMode(XmdsCommon.Plugin.XmdsPetConifg.XmdsPetFollowMode.ActiveAtk);
			}
		}

		override protected void onUpdate(bool slowRefresh)
        {
            base.onUpdate(slowRefresh);

            if (BindUnit != null)
            {
                if (X != BindUnit.X || Y != BindUnit.Y)
                {
                    setPos(BindUnit.X, BindUnit.Y, false);
                }
            }

            if ((PassTimeMS >= Info.LifeTimeMS) || (SummonerUnit != null && !SummonerUnit.IsActive))
            {
                kill(null, false);
            }
        }

        public override void InitSkills(LaunchSkill baseSkill, params LaunchSkill[] skills)
        {
            if (this.Virtual == null ||
               (this.Virtual as XmdsVirtual).IsFinishSkillInit() == false)
            {
                return;
            }

            base.InitSkills(baseSkill, skills);
        }


		// 各种填坑，宠物机制被改的贼特殊，贼恶心
		protected override bool IsCanAttack(InstanceUnit unit) { return true; }
		public override bool IsPet { get { return false; } }
		public override bool IsPlayerUnit { get { return false; } }
		protected override bool IsPetCanAttack() { return true; }
		protected override void followMasterChangeSpeed(float speedChag) { }

		protected override bool CheckFollowMaster()
		{
			if(this.Info.SumType == CommonAI.Data.SummonType.MoveToMaster || this.Info.SumType == CommonAI.Data.SummonType.AwaitMaster)
			{
				return false;
			}

			return true;
		}
		protected override void Disposing()
        {
            BindUnit = null;

            base.Disposing();
        }

		protected override bool TryAtkSelfEnemy()
		{
			bool ret = false;
			using (var list = ListObjectPool<InstanceUnit>.AllocAutoRelease())
			{
				//找到离自己最近的单位攻击.
				Parent.getObjectsRoundRange<InstanceUnit>(Collider.Object_BlockBody_TouchRound, X, Y, Info.GuardRange, list, AoiStatus);
				DoAndRemoveCollection.UpdateAndRemove<InstanceUnit>(list, (InstanceUnit u) =>
				{
					return !u.IsActive;
				});

				if (list != null && list.Count > 0)
				{
					list.Sort((a, b) =>
					{
						//选距离最近的单位.
						float da = CMath.getDistanceSquare(a.X, a.Y, this.X, this.Y);
						float db = CMath.getDistanceSquare(b.X, b.Y, this.X, this.Y);
						return (int)(da - db);
					});

					foreach (SkillState skill in SkillStatus)
					{
						if (skill.LaunchSkill.AutoLaunch && skill.TryLaunch())
						{
							foreach (InstanceUnit u in list)
							{
								if (this.IsCanAttack(u) && Parent.IsAttackable(this, u, skill.Data.ExpectTarget, AttackReason.Attack, skill.Data))
								{
									//是否在守卫范围内.
									if (CheckInAtkRange(u, this.Info.GuardRange + skill.Data.AttackRange))
									{
										//检测是否有可释放技能//
										if (tryAutoLaunch(skill, u))
										{
											return true;
										}
									}
								}
							}
						}
					}

				}
			}
			return ret;
		}
	}


}