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xLua中Lua调用C#

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xLua中Lua调用C#

1.前提

这里使用的是XLua框架,需要提前配置xlua,设置加载器路径;

可以参考之前的Blog:《xlua入门基础》

//调用段,所有的lua代码都写在LuaCallCSharp.lua文件中
public class LuaCallCSharp1 : MonoBehaviour
{
    void Start()
    {
        XluaEnv.I.DoString("LuaCallCSharp");
    }

    private void OnDestroy()
    {
        XluaEnv.I.Free();
    }
}

2.调用C#类

静态类

public static class TestStatic
{
    public static void ShowName(string name, int id)
    {
        Debug.Log($"name:{name},id:{id}");
    }
}

--静态类
CS.TestStatic.ShowName("littlePerilla",1012);

image-20211011155557124

动态类

public class NPC
{
    public string name;
    public int attack;

    public NPC(string name,int attack)
    {
        this.name = name;
        this.attack = attack;
    }

    public int Hp { get; set; }

    public void Attack()
    {
        Debug.Log($"attack:{attack},Hp:{Hp}");
    }
}

--类对象
local hero = CS.NPC("Angel",100)
hero.Hp = 110
hero:Attack()

image-20211011155610643

调用Unity官方Api

--创建物体
local go = CS.UnityEngine.GameObject("LuaObj ")
--添加组件
go:AddComponent(typeof(CS.UnityEngine.BoxCollider))

Lua不支持泛型,所有用到泛型的地方需要把每种可能的重载都写一遍;

image-20211011155657877

调用父类和子类

public class Father
{
    public string name = "father";

    public virtual void Say()
    {
        Debug.Log($"{name}:我在被调用");
    }
}

public class Child :Father
{
    public string name = "child";

    public override void Say()
    {
        Debug.Log($"{name}:我在被调用");
    }
}

local father = CS.Father()
father:Say()

local child = CS.Child()
child:Say()

image-20211011155338118

类拓展方法

拓展类必须为静态类,类必须加特性[LuaCallCSharp];《C#类拓展方法》;

会受到xlua版本和unity版本影响,导致调用失败,xlua官方推荐版本是2017(太过时了);

public class TestExtension
{
    public string Test1()
    {
        return "test";
    }
}

[LuaCallCSharp]
public static class MyExtension
{
    public static void Test2(this TestExtension obj)
    {
        Debug.Log("ExtensionFunc:"+ obj.Test1());
    }
}

local testEx = CS.TestExtension()

print(testEx:Test1())
testEx:Test2()

3.调用C#结构体

结构体和类相似,都有构造方法;

public struct TestStruct
{
    public int id;
    public string name;

    public void Output()
    {
        Debug.Log(id);
        Debug.Log(name);
    }
}

--结构体
local teststrut = CS.TestStruct()

teststrut.id = 12
teststrut.name = "littlePerilla"

teststrut:Output()

image-20211011155503446

4.调用C#枚举

枚举使用的userdate自定义数据类型;

public enum State
{
    idle = 0,
    walk,
    run,
    attack
}

--枚举使用的userdate自定义数据类型
local state = CS.State.idle

print(state)

--转换获得枚举
print(CS.State.__CastFrom(1))
print(CS.State.__CastFrom("run"))

image-20211011155441582

5.调用C#中委托

静态委托赋值调用必须释放;

动态委托不必要,但是最好也释放;

调用委托前先做为空判定;

Lua中没有+=或-=方法,只能通过a = a+b来实现多播;

public delegate void DelegateLua();

public class TestDelegate
{
    public static DelegateLua deStatic;

    public DelegateLua deDynamic;

    public static void Func()
    {
        Debug.Log("静态委托");
    }

    public void Func2()
    {
        Debug.Log("动态委托");
    }
}

--静态委托赋值调用必须释放
CS.TestDelegate.deStatic = CS.TestDelegate.Func
CS.TestDelegate.deStatic()
CS.TestDelegate.deStatic = nil

local func = function ()
	-- body
	print("lua函数替换委托")
end

--lua函数赋值委托
CS.TestDelegate.deStatic = func
--多播委托,确定deStatic不为空,lua没有+=和-=
if(CS.TestDelegate.deStatic ~= nil)then
	CS.TestDelegate.deStatic = CS.TestDelegate.deStatic + func
else 
	CS.TestDelegate.deStatic = func
end

--调用前判定不为空
if(CS.TestDelegate.deStatic ~= nil)then
	CS.TestDelegate.deStatic()
end

CS.TestDelegate.deStatic = nil
--动态委托
local test = CS.TestDelegate()

local func1 = function()
	print("动态委托调用")
end

test.deDynamic = func1
test.deDynamic()
test.deDynamic = nil

image-20211011155034038

6.调用C#事件

事件的调用不能直接复制,必须使用(“+”,function);

事件回调完成也需要释放;

public delegate void EventLua();

public class TestEvent
{
    public event EventLua luaEvent1;
    
    public static event EventLua luaEvent2;

    public static void Func()
    {
        Debug.Log("静态事件");
    }

    public static void CallEvent2()
    {
        if (luaEvent2 != null)
            luaEvent2();
    }

    public void CallEvent1()
    {
        if (luaEvent1 != null)
            luaEvent1();
    }
}

--静态事件
CS.TestEvent.luaEvent2("+",CS.TestEvent.Func)
CS.TestEvent.CallEvent2()
CS.TestEvent.luaEvent2("-",CS.TestEvent.Func)


--动态事件
local test = CS.TestEvent()

local func = function ()
	print("动态事件")
end

test:luaEvent1("+",func)
test:CallEvent1()
test:luaEvent1("-",func)

image-20211011154943195

标签:name,C#,void,xLua,TestDelegate,Lua,CS,--,public
来源: https://www.cnblogs.com/littleperilla/p/15393626.html