public static void MoveTo(this MoveAndSpellComponent self, Unit unit, Vector3 point)
        {
            if (self.Skill == null || (self.Point - point).sqrMagnitude > self.Skill.SkillConfig.PreviewRange[0] / 2f)
            {
                self.Point = point;
#if !SERVER
                unit.MoveToAsync(point).Coroutine();
#else
                unit.FindPathMoveToAsync(point).Coroutine();
#endif
            }
        }
        /// <summary>
        /// 释放对目标技能
        /// </summary>
        /// <param name="self"></param>
        /// <param name="spellSkill"></param>
        /// <param name="targetEntity"></param>
        public static void SpellWithTarget(this MoveAndSpellComponent self, SkillAbility spellSkill, CombatUnitComponent targetEntity)
        {
            if (!spellSkill.CanUse())
            {
                return;
            }
            if (self.Skill != null && self.Skill != spellSkill)//换新技能释放了
            {
                self.Skill  = null;
                self.Target = null;
                TimerComponent.Instance.Remove(ref self.TimerId);
                return;
            }

            var unit   = self.GetParent <CombatUnitComponent>().unit;
            var nowpos = unit.Position;
            var point  = targetEntity.unit.Position;

            if (Vector2.Distance(new Vector2(nowpos.x, nowpos.z), new Vector2(point.x, point.z)) >
                spellSkill.SkillConfig.PreviewRange[0])
            {
                self.MoveTo(unit, point);
                if (self.Skill == null)
                {
                    self.Skill   = spellSkill;
                    self.Target  = targetEntity;
                    self.TimerId = TimerComponent.Instance.NewFrameTimer(TimerType.MoveAndSpellSkill, self);
                }

                return;
            }

            if (self.Skill != null)
            {
                self.Skill  = null;
                self.Target = null;
                TimerComponent.Instance.Remove(ref self.TimerId);
                unit.Stop(0);
            }
#if SERVER //单机去掉
            self.Parent.GetComponent <SpellComponent>().SpellWithTarget(spellSkill, targetEntity);
#else
            spellSkill.UseSkill(Vector3.zero, targetEntity.Id);
#endif
        }