HelloWorld.PlaceActing.GetPlayer C# (CSharp) Method

        public GamePlayer GetPlayer()
        {
            if ( PlayerID == null )
            return null;

              return GameHost.DataService.GetPlayer( PlayerID.Value );
        }

        /// <summary>
        /// 检查活动是否已经完成，若已经完成则获取相应的收益
        /// </summary>
        /// <param name="acting">正在进行的活动</param>
        /// <returns>活动是否已经完成</returns>
        public override bool TryComplete(PlaceActing acting, DateTime now)
        {
            var completedOn = acting.StartOn + Requirement.Time;

            if (completedOn > now)
            {
                return(false);
            }

            var place  = acting.Place;
            var player = acting.GetPlayer();


            if (Returns.Items != null && player != null)
            {
                player.Resources.AddItems(Returns.Items);
            }

            if (Returns.Building != null)
            {
                place.SetBuilding(Returns.Building.Guid);
            }


            place.CheckPoint = completedOn;

            if (player != null)
            {
                var message = new GameMessageEntry(completedOn, string.Format("通过不懈的努力，在位置 {0} 的活动 {1} 已经完成 {2}", place.Coordinate.ToRelative(player), Name, Returns.DescriptiveMessage));
                GameHost.MessageService.AddMessage(player.Guid, message);
            }
            return(true);
        }