ID赋值工具

为了方便存档，每种新手引导的Group和Guide都要赋值一个唯一的ID，这部分我们用自定义的工具来实现。

首先先在Guide——Business文件夹内分别新建Groups、Guides、Behaviours三个文件夹，这里面分别放置新手引导业务逻辑的各个脚本。

然后再在Guide内新建Tools文件夹和Tools——Editor文件夹，在其中新建GuideGenerateIDTool

using UnityEditor;
using UnityEngine;
using System.IO;
using System.Text.RegularExpressions;
using System.Collections.Generic;

public class GuideGenerateIDTool
{
    private static readonly string BUSINESS_FOLDER = Application.dataPath + "/Scripts/Guide/Bussiness/";
    private static readonly string GROUP_FOLDER = BUSINESS_FOLDER + "Groups/";
    private static readonly string GUIDE_FOLDER = BUSINESS_FOLDER + "Guides/";

    private const string GROUP_REPLACE_CONTENT_OLD = "protected override int GroupID { get; }";
    //字符串中一个大括号会被识别为匹配符，如果想要输出大括号为文字，需要两个大括号
    private const string GROUP_REPLACE_CONTENT_NEW = "protected override int GroupID {{ get {{ return {0}; }} }}";
    private const string GUIDE_REPLACE_CONTENT_OLD = "protected override int GuideID { get; }";
    private const string GUIDE_REPLACE_CONTENT_NEW = "protected override int GuideID {{ get {{ return {0}; }} }}";

    private static readonly string ID_DATA_KEY = "SaveIdLastOne";

    [MenuItem("Tools/生成新手引导部分ID代码")]
    public static void GenerateId()
    {
        GenerateGroupId();
        GenerateGuideId();
        Debug.Log("完成ID替换");
    }
    [MenuItem("Tools/删除默认Guide存档")]
    private static void DeleteDefaultGuide()
    {
        PlayerPrefs.DeleteKey("0");
    }
    private static int IdData
    {
        get { return PlayerPrefs.GetInt(ID_DATA_KEY, 0); }
        set { PlayerPrefs.SetInt(ID_DATA_KEY, value); }
    }
    private static void GenerateGuideId()
    {
        ReplaceId(GROUP_FOLDER, GROUP_REPLACE_CONTENT_OLD, GROUP_REPLACE_CONTENT_NEW);
    }

    private static void GenerateGroupId() 
    {
        ReplaceId(GUIDE_FOLDER, GUIDE_REPLACE_CONTENT_OLD, GUIDE_REPLACE_CONTENT_NEW);
    }
    //用来正则替换的逻辑
    private static string ReplaceEvaluator(Match match, string oldContent, string newContent)
    {
        int id = IdData;
        IdData++;
        return match.Groups[0].Value.Replace(oldContent, string.Format(newContent, id));
    }

    private static void ReplaceId(string directoryPath, string oldContent, string newContent)
    {
        if (JudgeDirectory(directoryPath))
        {
            string filePath = "";
            string content = "";
            List<string> paths = new List<string>();
            GetFilePaths(directoryPath, paths);

            foreach (string file in paths)
            {
                if (file.Contains(".cs") && !file.Contains(".meta"))
                {
                    filePath = file;
                    content = File.ReadAllText(filePath);
                    //使用正则来替换，因为只有正则有匹配{0}的方式
                    content = Regex.Replace(content, oldContent, match => ReplaceEvaluator(match, oldContent, newContent));
                    File.WriteAllText(filePath, content);
                }
            }
        }
        else
        {
            Debug.LogErrorFormat("请按照以下路径新建文件夹：{0}", directoryPath);
        }
    }

    private static List<string> GetFilePaths(string rootPath, List<string> paths)
    {
        foreach (string file in Directory.GetFiles(rootPath, "*.cs"))
        {
            paths.Add(file);
        }
        foreach (string directory in Directory.GetDirectories(rootPath))
        {
            GetFilePaths(directory, paths);
        }
        return paths;
    }

    private static bool JudgeDirectory(string path) => Directory.Exists(path);
}