Unity3D自学笔记——UGUI背包系统（四）角色物品数据建立

角色物品数据建立

ItemInfo 为游戏物品数据，背包中的信息应该是角色自身的物品，之前ItemInfo只是用于测试背包效果。

UserItem对象

表结构

相对于ItemInfo就简单多了，关联了userId 和 itemId，实现user 和 item的多对多关系。
一个User 可以拥有一个以上的相同Item
一个Item也可以被多个User拥有

Lv 用来计算当前Item的属性
count 表示每一组Item的现有数量， itemInfo只规定了最大数量
whereType 表示item所在位置，角色身上，背包里，仓库

建立服务端对象

UserItemEntity

    public enum WhereType    {        Knapsack,        Body,        Warehouse,    }    [Serializable]    public class UserItemEntity : IEntityIntKey    {        public virtual int ID { get; set; }        public virtual UserEntity UserInfo { get; set; }        public virtual ItemEntity ItemInfo { get; set; }        public virtual int Count { get; set; }        public virtual int Lv { get; set; }        public virtual WhereType WhereType { get; set; }    }

UserItemMap

public class UserItemMap : ClassMap<UserItemEntity>    {        public UserItemMap()        {            Table("useritem");            Id(x => x.ID).Column("id");            Map(x => x.Count).Column("count");            Map(x => x.Lv).Column("lv");            Map(x => x.WhereType).Column("WhereType").CustomType<int>();            References(x => x.UserInfo).Column("userid");            References(x => x.ItemInfo).Column("itemid");        }    }

UserItemRepository

public class UserItemRepository : Repository<UserItemEntity>    {        public UserItemRepository(ISession session) : base(session)        {        }    }

GetUserItemCommand
用UserID去查找角色所有物品

public class GetUserItemCommand : ICommand    {        public int UserID { get; set; }    }

GetUserItemHandler

public class GetUserItemHandler : ICommandHandler<GetUserItemCommand>    {        private readonly UserItemRepository userItemRepository;        private UnitOfWork unitOfWork;        public GetUserItemHandler()        {            unitOfWork = new UnitOfWork();            userItemRepository = new UserItemRepository(unitOfWork.Session);        }        public ICommandResult Excute(GetUserItemCommand command)        {            IEnumerable<UserItemEntity> userItems = userItemRepository.FilterBy(x => x.UserInfo.ID == command.UserID);            unitOfWork.Commit();            return new CommandResult<UserItemEntity>(true, userItems);        }    }

OperationCode

public enum OperationCode : byte    {        Register,        Login,        GetHeroInfo,        CreateHero,        GetItemInfo,        GetUserItem,    }

AliPeer

protected virtual void HandleGetUserItemOperation(OperationRequest operationRequest, SendParameters sendParameters)        {            try            {                object json;                operationRequest.Parameters.TryGetValue(operationRequest.OperationCode, out json);                UserEntity user = JsonMapper.ToObject<UserEntity>(json.ToString());                var command = Mapper.Map<UserEntity, GetUserItemCommand>(user);                OperationResponse response = new OperationResponse((byte)OperationCode.GetUserItem);                CommandResult<UserItemEntity> result = commandBus.Submit(command) as CommandResult<UserItemEntity>;                if (result.Success)                {                    response.ReturnCode = (short)ReturnCode.Sucess;                    Dictionary<byte, object> dict = new Dictionary<byte, object>();                    string strJson = JsonMapper.ToJson(result.Result);                    dict.Add((byte)ReturnCode.Sucess, strJson);                    response.Parameters = dict;                }                else                {                    response.ReturnCode = (short)ReturnCode.Faild;                }                SendOperationResponse(response, sendParameters);            }            catch (Exception ex)            {                if (AliPeer.log.IsDebugEnabled)                {                    AliPeer.log.DebugFormat("Error: {0}", ex.Message);                }            }        }

客户端调用

同样是需要缓存的数据，但是不是在客户端启动的时候进行缓存，而是在角色进入游戏后进行缓存。

所以修改UIBottom的代码

private void BtnEnterOnClick(PointerEventData obj)    {        if (m_SelectHero.SelectedUser != null)        {            PhotonDataCache.AddOrUpdateDataCache(PhotonCacheType.SelectedUser, m_SelectHero.SelectedUser);            //初始化角色物品            string json = JsonMapper.ToJson(m_SelectHero.SelectedUser);            Dictionary<byte, object> parameter = new Dictionary<byte, object>();            parameter.Add((byte)OperationCode.GetUserItem, json);            PhotonManager.Instance.Peer.OpCustom((byte)OperationCode.GetUserItem, parameter, true);            //切换场景            StartCoroutine(GameMain.Instance.LoadScene(SceneName.Battle));        }        else        {            Debug.Log("Error");        }    }

同样在PhotonManager的回调函数中进行缓存

public void OnOperationResponse(OperationResponse operationResponse)    {        switch ((OperationCode)operationResponse.OperationCode)        {            case OperationCode.Login:                HandleLoginResponse(operationResponse);                break;            case OperationCode.Register:                HandleRegisterResponse(operationResponse);                break;            case OperationCode.GetHeroInfo:                HandleGetHeroInfoResponse(operationResponse);                break;            case OperationCode.CreateHero:                HandleCreateHeroResponse(operationResponse);                break;            case OperationCode.GetItemInfo:                HandleGetItemInfoResponse(operationResponse);                break;            case OperationCode.GetUserItem:                HandleGetUserItemResponse(operationResponse);                break;        }    }private void HandleGetUserItemResponse(OperationResponse operationResponse)    {        switch ((ReturnCode)operationResponse.ReturnCode)        {            case ReturnCode.Sucess:                object json;                operationResponse.Parameters.TryGetValue((byte)ReturnCode.Sucess, out json);                if (json != null)                {                    JsonData data = JsonMapper.ToObject(json.ToString());                    new JsonToEntity<UserItemEntity>(PhotonCacheType.UserItem, data).BuildEntityToCache();                }                var cache = PhotonDataCache.GetAll(PhotonCacheType.UserItem);                if (cache != null && cache.Count > 0)                {                    Debug.Log("角色物品数据初始化成功");                }                else                {                    Debug.Log("角色物品数据初始化失败");                }                break;        }    }

提示角色物品数据初始化成功

LitJson序列化遇到的坑

最早UserItem的命名是 ItemEntity Item{get;set;}，然后服务端调用JsonMapper.ToJson弄死不会把ItemEntity序列化出来，从吃饭前查到吃饭后，写了一堆测试代码，最后把名字换成ItemInfo，终于问题解决了。

看了LitJson的源代码也没看出问题。