Lua_ uLua_C#中使用Lua_016

系统管理员 2022-05-30 08:39 230阅读 0赞

![这里写图片描述][SouthEast]   
前期工作，导入ulua\_v1.25.unitypackage，然后在工程中引入LuaInterface命名空间。

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## 方法一： ##

using LuaInterface;
    // 常见一个Lua解释器
    LuaState lua = new LuaState();
    
    //创建全局变量 "num" and "str"
    lua["num"] = 2;
    lua["str"] = "a string";
    //创建空表
    lua.NewTable("table_one");
    LuaTable tb = lua.GetTable("table_one");
    tb["a"]=1000;
    print(tb["a"]);
    
    
    // Read global variables "num" and "str"
    double num = (double)lua["num"];
    string str = (string)lua["str"];

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--------------------

## 方法二： ##

DoString 和DoFile方法可以执行Lua脚本，方法返回一个脚本执行后返回的数组

// Execute a Lua script file
    lua.DoFile("script.lua");
    
    // Execute chunks of Lua code
    lua.DoString("num=2");
    
    lua.DoString("str=’a string’");
    
    // Lua code returning values
    object[] retVals = lua.DoString("return num,str");

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*  DoString

using UnityEngine;
    using System.Collections;
    using LuaInterface;
    
    public class HelloWorld : MonoBehaviour {
    
        // Use this for initialization
        void Start () {
            LuaState l = new LuaState();
            string str = "print('hello world 世界')";
            l.DoString(str);
        }
    
    
    }
    
    
    
    using UnityEngine;
    using System.Collections;
    using LuaInterface;
    
    public class ScriptsFromFile_01 : MonoBehaviour
    {
    
        public TextAsset scriptFile;
    
        // Use this for initialization
        void Start()
        {
            LuaState l = new LuaState();
            l.DoString(scriptFile.text);
        }
    }

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*  DoFile

using UnityEngine;
    using System.Collections;
    using LuaInterface;
    
    public class ScriptsFromFile_02 : MonoBehaviour
    {
        // Use this for initialization
        void Start()
        {
            //只是展示如何加载文件。不是推荐这么做
            LuaState l = new LuaState();
            string path = Application.dataPath + "/uLua/luaScript.lua";        
            l.DoFile(path);
        }
    }

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--------------------

参考代码

using System.Collections;
    using System.Collections.Generic;
    using UnityEngine;
    using LuaInterface;
    
    public class Test : MonoBehaviour {
    
        // Use this for initialization
        void Start()
        {
            //创建一个Lua的解释器
            LuaState lua = new LuaState();
            lua["num"] = 34;
            Debug.Log(lua["num"]);
            //可以直接执行lua的代码
            lua.DoString("num=2");
            Debug.Log(lua["num"]);
            lua.DoString("str='a string'");
            Debug.Log(lua["str"]);
    
            object[] values = lua.DoString("return num,str");
            foreach (var item in values)
            {
                Debug.Log(item);
            }
            //下面这句代码默认的路径是 Application.dataPath +\uLua\Lua + LuaTest.lua
            //Util.LuaPath("LuaTest.lua");
            //在这里不能直接使用Lua.
            string path = Application.dataPath + "/LuaTest.lua";
            //执行lua的文件
            object[] objs = lua.DoFile(path);
    
        }
    }

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--------------------

## 在Lua中调用C\#静态方法 ##

编写脚本如下

using System.Collections;
    using System.Collections.Generic;
    using UnityEngine;
    using LuaInterface;
    
    public class Test : MonoBehaviour {
    
        // Use this for initialization
        void Start()
        {
            string lua01 = @"Test.MethodTest01()";
            LuaScriptMgr luaMgr = new LuaScriptMgr();
            luaMgr.Start();
            LuaState luastate = luaMgr.lua;
            luastate.DoString(lua01);
        }
    
        public static void MethodTest01()
        {
            Debug.Log("Hahahaha");
        }
    }

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然后下图中点击Clear LuaBinder file + wrap Files   
![这里写图片描述][SouthEast 1]

然后在uLua/Editor目录下面找到WrapFile文件，在binds静态数组中添加\_GT(typeof(Test))，最后在上图中选择第二步Gen Lua Wrap Files，运行Unity即可

[SouthEast]: /images/20220530/5f0bc726938245b2be3c5280f5d49b02.png
[SouthEast 1]: /images/20220530/08d0b69b6e8b4f0cb2aa267e68da78a1.png