nlua

nlua 简介

c# 常用lua库

初始化lua

this.lua = new Lua();
this.lua.DoString("require 'math'");
this.lua.DoString("require 'string'");
// 注册dialog
this.lua.RegisterFunction("Dialog", typeof(Dialog).GetConstructor(Type.EmptyTypes));
useLuaScriptManager = new UseLuaScriptManager("script",lua);

1. c#懒加载缓存FILE 并且执行脚本 以路径文件为缓存对象

class UseLuaScriptManager : IDisposable {

    private readonly Lua lua;
    private readonly string _basePath;
    // 全局脚本缓存（文件内容）
    private static readonly ConcurrentDictionary<
    string, string > _scriptContentCache = new ConcurrentDictionary<string, string>();

    public UseLuaScriptManager(string basePath = "script", Lua lua = null)
    {
        _basePath = basePath;
        this.lua = lua;
    }


    public Object[] ExecuteScript (string path, string name, params object[] args)
    {

        var scriptPath = Path.Combine(_basePath, path, $"{name}.lua");
        if (!File.Exists(scriptPath)) {
            LogAction.LogOut("脚本路径未找到: " + scriptPath, LogType.Err);
            return null;
        }

        // 从全局缓存获取或加载脚本内容
        string scriptContent = _scriptContentCache.GetOrAdd(scriptPath, scriptPathKey = >
                {
        return File.ReadAllText(scriptPathKey, Encoding.Default);
        });

        Console.WriteLine($"cache lua content count: {_scriptContentCache.Keys.Count}");
        try {
            lua.DoString(scriptContent);
            var function = lua.GetFunction("main");
            return args == null ? function.Call() : function.Call(args);
        } catch (Exception ex) {
            Console.WriteLine(ex);
            //throw new Exception($"Error executing Lua script '{name}.lua'", ex);
            return null;
        }
    }

    public static void clear() {
        _scriptContentCache.Clear();
    }
}

2. LUA使用require代替缓存

package.path 结合require使用自带缓存功能

 public static void testLua() {
     // 默认支持加载8层目录
     lua.DoString(@"
         -- 自动生成支持 1~N 层子目录的路径规则
         local base_path = './script/'
         local path_rules = ';' .. base_path .. '?.lua'
    
         -- 生成 1~8 层子目录规则（可根据需要调整数字）
         for i = 1, 8 do
             path_rules = path_rules .. ';' .. base_path .. string.rep('?/', i) .. '?.lua'
         end
    
         package.path = package.path .. path_rules
     ");
     // 直接通过require加载 并执行函数       
     ((NLua.LuaFunction)((LuaTable)lua.DoString("return require 'test'")[0])["test"]).Call();
     ((NLua.LuaFunction)((LuaTable)lua.DoString("return require 'test1'")[0])["test"]).Call();
     ((NLua.LuaFunction)((LuaTable)lua.DoString("return require 'test'")[0])["test"]).Call();
 }