Xlua热更新

た入场券 2021-09-16 10:34 596阅读 0赞

**目录**

1.导入xlua插件（下载地址：https://github.com/Tencent/xLua）

2.通过xlua插件运行lua程序

3.加载运行Lua源文件

4.添加自定义的Loader方法

5.通过自定义Loader加载指定目录的Lua脚本

6.C\#访问Lua中的全局变量

7.C\#访问Lua中的table（映射到Class，不推荐使用此方式）

8.C\#访问Lua中的table（推荐使用此方式，即映射到interface）

9.C\#访问Lua中的全局函数（推荐使用此方式，即映射到delegate）

10.在Lua中new C\#对象（创建一个游戏物体gameobject）

11.Lua访问C\#静态属性和静态方法

12.Lua访问C\#成员属性和成员方法

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

## 1.导入xlua插件（下载地址：[https://github.com/Tencent/xLua][https_github.com_Tencent_xLua]） ##

## ![70][]![70 1][] ##

## 2.通过xlua插件运行lua程序 ##

![70 2][]

using UnityEngine;
    using XLua;
    
    public class helloworld01 : MonoBehaviour {
    
        private LuaEnv luaenv;
    
    	void Start () {
            luaenv = new LuaEnv();
            luaenv.DoString("print('hello world')");
            luaenv.DoString("CS.UnityEngine.Debug.Log('你好')");
    	}
    
        private void OnDestroy()
        {
            luaenv.Dispose();
        }
    }

![70 3][]

## 3.加载运行Lua源文件 ##

![70 4][]![70 5][]

using UnityEngine;
    
    public class Helloworld02 : MonoBehaviour {
    
    	void Start () {
            TextAsset ta = Resources.Load<TextAsset>("HelloWorld.lua");
            print(ta);
        }
    }

![70 6][]   ![70 7][]

using UnityEngine;
    using XLua;
    
    public class Helloworld02 : MonoBehaviour {
    
    	void Start () {
            TextAsset ta = Resources.Load<TextAsset>("HelloWorld.lua");
            LuaEnv env = new LuaEnv();
            env.DoString(ta.text);
            env.Dispose();
        }
    }

![70 8][]![70 9][]

## 4.添加自定义的Loader方法 ##

using UnityEngine;
    using XLua;
    
    public class CreateLoader : MonoBehaviour {
    
    	void Start () {
            LuaEnv env = new LuaEnv();
            env.AddLoader(MyLoader);
            env.DoString("require 'HelloWorld'");
            env.Dispose();
    	}
        private byte [] MyLoader(ref string filePath)
        {
            return null;
        }
    }

![70 9][]

![70 10][]

using UnityEngine;
    using XLua;
    
    public class CreateLoader : MonoBehaviour {
    
    	void Start () {
            LuaEnv env = new LuaEnv();
            env.DoString("require 'HelloWorld'");
            env.AddLoader(MyLoader);
            
            env.Dispose();
    	}
        private byte [] MyLoader(ref string filePath)
        {
            string s = "print(123)";
            return System.Text.Encoding.UTF8.GetBytes(s);
        }
    }

![70 11][]

## 5.通过自定义Loader加载指定目录的Lua脚本 ##

using System.IO;
    using UnityEngine;
    using XLua;
    
    public class CreateLoader : MonoBehaviour {
    
    	void Start () {
            LuaEnv env = new LuaEnv();
            env.AddLoader(MyLoader);
            env.DoString("require 'test007'");
            env.Dispose();
    	}
        private byte [] MyLoader(ref string filePath)
        {
            print(filePath);//test007
            print(Application.streamingAssetsPath);//E:/unityPractice/XluaPractice/Assets/StreamingAssets
            string absPath = Application.streamingAssetsPath + "/" + filePath + ".lua.txt";
            return System .Text .Encoding .UTF8 .GetBytes (File.ReadAllText (absPath ));
        }
    }

![70 12][]![70 13][]

## 6.C\#访问Lua中的全局变量 ##

using UnityEngine;
    using XLua;
    
    public class CSharpCallLua : MonoBehaviour {
    
    	void Start () {
            LuaEnv env = new LuaEnv();
            env.DoString("require 'CSharpCallLua'");
            int a = env.Global.Get<int>("a");
            print(a);
            string  str = env.Global.Get<string >("str");
            print(str );
            bool  isDie = env.Global.Get<bool >("isDie");
            print(isDie );
            env.Dispose();
    	}
    }

![70 14][]![70 15][]

![70 16][] ![70 17][]

## 7.C\#访问Lua中的table（映射到Class，不推荐使用此方式） ##

using UnityEngine;
    using XLua;
    
    public class CSharpCallLua : MonoBehaviour {
    
    	void Start () {
            LuaEnv env = new LuaEnv();
            env.DoString("require 'CSharpCallLua'");
    
            Person p = env.Global.Get<Person>("person");
            print(p.name + ":" + p.age);
            p.name = "nihao";
            env.DoString("print(person.name)");//LUA:lijiang
    
            env.Dispose();
    	}
        class Person
        {
            public string name;
            public int age;
        }
    }

![70 18][]![70 19][]

## 8.C\#访问Lua中的table（推荐使用此方式，即映射到interface） ##

using UnityEngine;
    using XLua;
    
    public class CSharpCallLua : MonoBehaviour {
    
    	void Start () {
            LuaEnv env = new LuaEnv();
            env.DoString("require 'CSharpCallLua'");
    
            IPerson p = env.Global.Get<IPerson>("person");
            print(p.name + ":" + p.age);
            p.name = "nihao";
            env.DoString("print(person.name)");//LUA:lijiang
            p.Eat(12, 34);
            env.Dispose();
    	}
    
        [CSharpCallLua ]
        interface  IPerson
        {
            string name { get; set; }
            int age { get; set; }
            void Eat(int a, int b);
        }
    }

person={name="lijiang",age=20}
    
    function person.Eat(self,a,b)
        print(a+b)
        print("I am eating")
     end
    
     --[[function person:Eat(a,b) 这种方式也是可以的，默认带一个self参数，代表当前table
        print(a+b)
        print("I am eating")
     end
     --]]

![70 14][]![70 15][]

![70 20][]

## 9.C\#访问Lua中的全局函数（推荐使用此方式，即映射到delegate） ##

*  不含参函数

using UnityEngine;
    using XLua;
    using System;
    
    public class CSharpCallLua : MonoBehaviour {
    
    	void Start () {
            LuaEnv env = new LuaEnv();
            env.DoString("require 'CSharpCallLua'");
            Action A= env.Global.Get<Action>("Add");
            A ();
            A = null;
            env.Dispose();
    	}
    }

function Add()  --不含参函数
    print("A")
    end

![70 21][]

*  含参函数

function Add(a,b)  --含参函数
    print(a+b)
    end

![70 22][]

*  含参函数，多返回值的情况（用ref，out都可以）

using UnityEngine;
    using XLua;
    
    public class CSharpCallLua : MonoBehaviour {
    
        void Start()
        {
            LuaEnv env = new LuaEnv();
            env.DoString("require 'CSharpCallLua'");
    
            Add A = env.Global.Get<Add>("Add");
            int resa; int resb;
            int a = A(1, 2, out resa, out resb);
            print(a);
            print(resa);
            print(resb);
            A = null;
    
            env.Dispose();
        }
    
        [CSharpCallLua]
        delegate int Add(int a, int b, out int resa, out int resb);
    
        //void Start()
        //{
        //    LuaEnv env = new LuaEnv();
        //    env.DoString("require 'CSharpCallLua'");
    
        //    Add A = env.Global.Get<Add>("Add");
        //    int resa=0; int resb=0;
        //    int a = A(1, 2, ref  resa, ref  resb);//用ref也可以，不过上面的resa要赋值，这里赋值为0
        //    print(a);
        //    print(resa);
        //    print(resb);
        //    A = null;
    
        //    env.Dispose();
        //}
    
        //[CSharpCallLua]
        //delegate int Add(int a, int b, ref  int resa, ref  int resb);
    }

function Add(a,b)  --含参函数
    print(a+b)
    return a+b,a,b
    end

![70 23][]

## 10.在Lua中new C\#对象（创建一个游戏物体gameobject） ##

![70 24][]

using UnityEngine;
    using XLua;
    public class LuaCallCSharp : MonoBehaviour {
    
        void Start()
        {
            LuaEnv env = new LuaEnv();
            env.DoString("require 'LuaCallCSharp'");
            env.Dispose();
        }
    }

![70 25][]

![70 26][]

## 11.Lua访问C\#静态属性和静态方法 ##

print(CS.UnityEngine.Time .deltaTime )        --读静态属性
    CS.UnityEngine.Time.timeScale=0.5             --写静态属性
    
    local gameObject=CS.UnityEngine.GameObject    --调用静态方法
    local camera=gameObject.Find("Main Camera")
    camera.name="update by lua"

![70 27][]

## 12.Lua访问C\#成员属性和成员方法 ##

local gameObject=CS.UnityEngine.GameObject  
    local camera=gameObject.Find("Main Camera")
    local cameraCom=camera:GetComponent("Camera")
    --用local cameraCom=camera.GetComponent(camera,"Camera")也是可以的，注意和上面用冒号的区别
    cameraCom.enabled = false

![70 28][]

[https_github.com_Tencent_xLua]: https://github.com/Tencent/xLua
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