存档系统

今天分享一个适用于QF的存档系统

这个系统的优点为

1、轻量化，总共代码不超过400行

2、自动化，基于QF框架，自动注入值

缺点：

1、不能序列化Unity内部类型，如Vector

2、需要给能被序列化的类加上【Serialize】属性

依赖下载

在Unity的包管理器中，输入Newtonsoft.json，下载依赖

模块分析

Storage：工具模块

维护一个数据缓冲区，负责将数据从磁盘中读取到缓冲区中，并且从缓冲区获取数据写入磁盘

using QFramework;namespace EggFramework.Storage
{public interface IStorage : IUtility{void AssignSavePath(string path = "saveData");void ReadFromDisk();void WriteToDisk();T Load<T>(string key, T defaultValue,out bool newValue);void Save<T>(string key, T saveData);void Clear();}
}

接口模块定义如上

FileSystem：系统模块

维护一个保存了存档名的列表，并且负责实际注册数据，加载数据，保存数据

using QFramework;
using System.Collections.Generic;namespace EggFramework.FileSystem
{public interface IFileSystem : ISystem{List<string> FileNames { get; }void Register<T>(BsProperty<T> savable, string name);void Unregister<T>(BsProperty<T> savable);void CreateFile(string fileName);//自动加载当前的存档void LoadFile(string fileName = "File1");void SaveFile();void DeleteFile(string fileName);void DeleteAll();}
}

其中BSProperty定义如下

#region//文件创建者：Egg
//创建时间：09-10 02:24#endregionusing System;
using QFramework;namespace EggFramework.FileSystem
{public sealed class BsProperty<T> : BindableProperty<T>, ISavable{Action ISavable.OnLoad { get; set; } = () => { };Action ISavable.OnSave { get; set; } = () => { };}
}

#region//文件创建者：Egg
//创建时间：09-10 02:23#endregionusing System;namespace EggFramework.FileSystem
{public interface ISavable{Action OnLoad { get; set; }Action OnSave { get; set; }}
}

通过ISavable限制BSProperty，并且通过在框架初始化的时候，将数据注册到FileSystem，加载时，统一将数据注入BSProperty。

Storage实现

using System.Collections.Generic;
using System.IO;
using Newtonsoft.Json;
using UnityEngine;namespace EggFramework.Storage
{public sealed class JsonStorage : IStorage{private string _savePath = "saveData.json";private Dictionary<string, object> _saveData = new();public void ReadFromDisk(){var path = Path.Combine(Application.persistentDataPath, _savePath);Debug.Log(path);if (File.Exists(path)){var json = File.ReadAllText(Path.Combine(Application.persistentDataPath, _savePath));_saveData = JsonConvert.DeserializeObject<Dictionary<string, object>>(json);Debug.Log("读取成功");}else{_saveData.Clear();}}public void WriteToDisk(){var json = JsonConvert.SerializeObject(_saveData);File.WriteAllText(Path.Combine(Application.persistentDataPath, _savePath), json);}public void Save<T>(string key, T saveData){if (saveData == null){Debug.LogWarning("Saving null data");}if (_saveData.TryAdd(key, saveData)){_saveData[key] = saveData;}}public T Load<T>(string key, T defaultValue, out bool newValue){newValue = false;if (!_saveData.TryGetValue(key, out var saveValue)){newValue = true;return defaultValue;}//5月15日补丁，对直接使用的布尔类型区别处理if (typeof(T) == typeof(bool)){return (T)saveValue;}return JsonConvert.DeserializeObject<T>(saveValue.ToString());}public void AssignSavePath(string path = "saveData"){_savePath = path + ".json";}public void Clear(){_saveData.Clear();}}
}

FileSystem实现

using QFramework;
using System.Collections.Generic;
using EggFramework.Storage;
using UnityEngine;namespace EggFramework.FileSystem
{public sealed class FileSystem : AbstractModule, IFileSystem{public List<string> FileNames { get; private set; } = new();private bool _inited;private bool _loaded;private IStorage _storage;private readonly List<ISavable> _savableProperties = new();private readonly Dictionary<ISavable, object> _defaultValues = new();private string _currentFile = string.Empty;public void DeleteFile(string fileName){MakeSureInited();if (FileNames.Contains(fileName)){_storage.AssignSavePath(fileName);_storage.Clear();_storage.WriteToDisk();FileNames.Remove(fileName);Debug.Log("删除成功");}else{Debug.Log("要删除的存档不存在");}}public void DeleteAll(){MakeSureInited();foreach (var fileName in FileNames){DeleteFile(fileName);}}private void MakeSureInited(){if (string.IsNullOrEmpty(_currentFile)){if (FileNames == null){OnInit();}if (FileNames!.Count == 0){FileNames.Add("File1");}_currentFile = FileNames[0];}}private T Load<T>(string key, T defaultValue, out bool isNew){MakeSureInited();return _storage.Load(key, defaultValue, out isNew);}private void LoadFileInner(){MakeSureInited();SaveFileName();//清除缓存区_storage.Clear();//指定路径_storage.AssignSavePath(_currentFile);//加载数据_storage.ReadFromDisk();//为每个已注册值赋值foreach (var savable in _savableProperties){savable.OnLoad?.Invoke();}_loaded = true;}//必須在所有值都註冊完畢後，调用LoadFile，否则无法填充对应的值public void LoadFile(string fileName = "File1"){_currentFile = fileName;LoadFileInner();}/// <summary>///用于将存档名写入文件/// /// </summary>private void SaveFileName(){MakeSureInited();//指定路径_storage.AssignSavePath();//读取磁盘_storage.ReadFromDisk();//写入缓存区_storage.Save(nameof(FileNames), FileNames);//写入磁盘_storage.WriteToDisk();}private void Save<T>(string key, T value){MakeSureInited();_storage.Save(key, value);}public void SaveFile(){if (!_loaded){Debug.LogWarning("需要先加载一个存档才行");return;}_storage.AssignSavePath(_currentFile);_storage.Clear();//依次调用onSave方法，把注册数据写入缓存区foreach (var savable in _savableProperties){savable.OnSave?.Invoke();}//将缓存区中的数据写入文件_storage.WriteToDisk();//将存档名写入文件SaveFileName();}protected override void OnInit(){if (!_inited){_storage = this.GetUtility<IStorage>();_storage.AssignSavePath();FileNames = _storage.Load(nameof(FileNames), new List<string>(), out _);_inited = true;}}//CreateFile有两个重载//可以自定义存档名或者默认存档名public void CreateFile(string fileName){MakeSureInited();if (!FileNames.Contains(fileName)){FileNames.Add("File" + fileName);SaveFileName();}}public void Register<T>(BsProperty<T> savable, string name){if (!_savableProperties.Contains(savable)){_savableProperties.Add(savable);_defaultValues.Add(savable, savable.Value);var saveItem = (ISavable)savable;saveItem.OnLoad += () =>{var value = Load(name, (T)_defaultValues[savable], out var isNew);if (!isNew)savable.Value = value;elsesavable.Value = (T)_defaultValues[savable];};saveItem.OnSave += () => Save(name, savable.Value);}else Debug.Log("重复注册值");}public void Unregister<T>(BsProperty<T> savable){if (_savableProperties.Contains(savable)){_savableProperties.Remove(savable);var saveItem = (ISavable)savable;saveItem.OnLoad = null;saveItem.OnSave = null;}else Debug.Log("重复注销值");}}
}

#region//文件创建者：Egg
//创建时间：09-11 07:30#endregionusing QFramework;namespace EggFramework
{public abstract class AbstractModule : AbstractSystem{}
}