Unity结合SLua框架基本使用Demo

SLua框架安装

1.https://github.com/pangweiwei/slua/wiki下载最新版，将Assets目录里的所有内容复制到工程中，对于最终产品，可以删除例子，文档等内容，如果是开发阶段则无所谓。

2.等待unity编译完毕，如果一切顺利的话，将出现SLua菜单，点击SLua菜单中All->Make命令，手动生成针对当前版本的U3d接口文件。

3.每次更新SLua版本，务必记得All->Clear，然后All->Make，否则可能运行不正确。

效果：

C#代码如下：

using UnityEngine;
using System.IO;
using SLua;
using UnityEngine.UI;




//public delegate byte[] LuaReourcesFileLoader(string fn, ref string absoluteFn);
public class LoadLua : MonoBehaviour
{   

    LuaSvr svr;
    LuaTable self;
    LuaFunction update;

    [CustomLuaClass]
    public delegate void UpdateDelegate(object self);
    UpdateDelegate ud;
   
    void Start()
    {
       
        svr = new LuaSvr();
        LuaSvr.mainState.loaderDelegate += LuaFileLoader;
        svr.init(null, () => // 如果不用init方法初始化的话,在Lua中是不能import的
        {   
            
            // 这里为了测试就不先判断为空,开发的时候再加上
            self = (LuaTable)svr.start( Application.streamingAssetsPath + "/Lua/SLuaTest.txt");

            update = (LuaFunction)self["update"];
            ud = update.cast<UpdateDelegate>();
            
          
        });
        
    }
    //public float i=0.01f;
    //public Color color_ = new Color(0, 1, 1);
    void Update()
    {    
        //RGB颜色渐变效果
        //Color(0,1,1)
        //-G +R -B +G -R +B
        //if (color_.r == 0 && color_.g > 0 && color_.b == 1)
        //{
        //    color_.g -= i;
        //    if (color_.g<0) {
        //        color_.g = 0;
        //    }
        //}
        //else if (color_.g == 0 && color_.r < 1 && color_.b == 1)
        //{
        //    color_.r += i;
        //    if (color_.r > 1)
        //    {
        //        color_.r = 1;
        //    }
        //}
        //else if (color_.r == 1 && color_.g == 0 && color_.b > 0)
        //{
        //    color_.b -= i;
        //    if (color_.b < 0)
        //    {
        //        color_.b = 0;
        //    }
        //}
        //else if (color_.b == 0 && color_.r == 1 && color_.g < 1)
        //{
        //    color_.g += i;
        //    if (color_.g > 1)
        //    {
        //        color_.g = 1;
        //    }
        //}
        //else if (color_.r > 0 && color_.g == 1 && color_.b == 0)
        //{
        //    color_.r -= i;
        //    if (color_.r < 0)
        //    {
        //        color_.r = 0;
        //    }
        //}
        //else if (color_.r == 0 && color_.g == 1 && color_.b < 1)
        //{
        //    color_.b += i;
        //    if (color_.b > 1)
        //    {
        //        color_.b = 1;
        //    }
        //}
     
        //A.transform.GetComponent<Renderer>().material.color = color_;
        if (ud != null) ud(self);
    }

    private static byte[] LuaFileLoader(string strFile, ref string fn)
    {
        
        string filename =  strFile;
        return File.ReadAllBytes(filename);
    }
    public  Sprite ResourcesSprite(string path)
    {

        return Resources.Load<Sprite>(path);
    }
}
   

Lua代码如下：

--lua代码文件名称：SLuaTest.txt
import "UnityEngine"
import "UnityEngine.UI"


local class={}
IsRunning=true;

function main()  --程序启动自动调用该方法 类似Unity中的Start方法
   cs = GameObject.Find("LoadLuaManager") --Lua调用CS代码
   


   camera=Camera.main
   camera.clearFlags = CameraClearFlags.SolidColor
   camera.backgroundColor = Color.black
   print("Lua创建了一个Cube")
   cube = GameObject.CreatePrimitive(PrimitiveType.Cube)
   cube:AddComponent(UnityEngine.AudioSource).clip=Resources.Load("One Last Kiss(Instrumental)")
   cube.transform:GetComponent(AudioSource).loop = true
   cube.transform:GetComponent(AudioSource):Play()
   --cube.transform:GetComponent(Renderer).material=Resources.Load("Material") 从Resources获取材质球的方法
   cube.transform:GetComponent(Renderer).material.color=Color.red; --直接设置材质的颜色
   cube.transform.localPosition =Vector3(0, 1, -5)
   
   MainTransform =  GameObject.Find("Canvas/MainPlant").transform
  
   GameObject.Instantiate(Resources.Load("Button"),Vector3(960, 1000, 0),Quaternion.identity,MainTransform).name="Button1" 
   But=GameObject.Find("Canvas/MainPlant/Button1")
   But.transform.localScale= Vector3(2, 2, 2);

   GameObject.Find("Canvas/MainPlant/Button1/Text"):GetComponent(UI.Text).text="切换画面填充模式"
 
   GameObject.Instantiate(Resources.Load("Button"),Vector3(1250, 1000, 0),Quaternion.identity,MainTransform).name="Button2" 
   But2=GameObject.Find("Canvas/MainPlant/Button2")
   But2.transform.localScale= Vector3(1.5, 1.5, 1.5);

   GameObject.Find("Canvas/MainPlant/Button2/Text"):GetComponent(UI.Text).text="切换颜色"


   GameObject.Instantiate(Resources.Load("Button"),Vector3(360, 700, 0),Quaternion.identity,MainTransform).name="Button3" 
   But3=GameObject.Find("Canvas/MainPlant/Button3")
   But3.transform.localScale= Vector3(2, 2, 2);
   GameObject.Destroy( GameObject.Find("Canvas/MainPlant/Button3/Text"))   --在Lua中如何删除物体
   But3:GetComponent(RectTransform).sizeDelta=Vector2(60,60);
    
  
   But3:GetComponent(UI.Image).sprite= cs:GetComponent("LoadLua"):ResourcesSprite("播放")
 
  But:GetComponent(Button).onClick:AddListener(function ()
      print("Lua中的Button监听事件触发");
      if( camera.clearFlags==CameraClearFlags.SolidColor)
      then
             But2.transform.localScale= Vector3(1.5, 1.5, 1.5);
            camera.clearFlags =CameraClearFlags.Skybox
            
      elseif(camera.clearFlags==CameraClearFlags.Skybox)
      then
           But2.transform.localScale= Vector3(0,0,0);
          camera.clearFlags =CameraClearFlags.Nothing
        
      elseif(camera.clearFlags==CameraClearFlags.Nothing)
      then
           But2.transform.localScale= Vector3(0,0,0);
          camera.clearFlags =CameraClearFlags.Depth
        
      elseif(camera.clearFlags==CameraClearFlags.Depth)
      then
           But2.transform.localScale= Vector3(1.5, 1.5, 1.5);
          camera.clearFlags=CameraClearFlags.SolidColor
        
      end

   end);

   But2:GetComponent(Button).onClick:AddListener(function ()
        if(camera.backgroundColor == Color.black)
        then
            camera.backgroundColor =Color.white
        elseif(camera.backgroundColor==Color.white)
        then
            camera.backgroundColor = Color.blue
        elseif(camera.backgroundColor==Color.blue)
        then
            camera.backgroundColor = Color.red
        elseif(camera.backgroundColor==Color.red)
        then
            camera.backgroundColor = Color.green
        elseif(camera.backgroundColor==Color.green)
        then
            camera.backgroundColor =Color(1,1,0)
        elseif(camera.backgroundColor==Color(1,1,0))
        then
            camera.backgroundColor = Color.clear
        elseif(camera.backgroundColor==Color.clear)
        then 
            camera.backgroundColor = Color.cyan
        elseif(camera.backgroundColor==Color.cyan)
        then
            camera.backgroundColor = Color(0.5,0.5,0.5)
        elseif(camera.backgroundColor==Color(0.5,0.5,0.5))
        then
            camera.backgroundColor = Color.magenta
        elseif(camera.backgroundColor==Color.magenta)
        then
            camera.backgroundColor = Color.black
        end
        --Color.white  Color.clear  Color.cyan Color.red Color.green Color.gray Color.grey Color.magenta Color.yellow
   end);

   But3:GetComponent(Button).onClick:AddListener(function ()
     if(cube.transform:GetComponent(AudioSource).isPlaying)
     then             
           cube.transform:GetComponent(AudioSource):Pause()
            But3:GetComponent(UI.Image).sprite= cs:GetComponent("LoadLua"):ResourcesSprite("暂停")
            IsRunning=false
     else
           cube.transform:GetComponent(AudioSource):Play()    
             But3:GetComponent(UI.Image).sprite= cs:GetComponent("LoadLua"):ResourcesSprite("播放")
            IsRunning=true
     end
     end);


   Text =  GameObject.Instantiate(Resources.Load("Text"),Vector3(1600, 650, 0),Quaternion.identity,MainTransform)
   Text:GetComponent(UI.Text).color = Color.white;
   Text:GetComponent(UI.Text).fontSize = 35;
 
   Text:GetComponent(RectTransform).sizeDelta=Vector2(600,300);
	


   Text1 =  GameObject.Instantiate(Resources.Load("Text"),Vector3(1600, 450, 0),Quaternion.identity,MainTransform)
   Text1:GetComponent(UI.Text).color = Color.white;
   Text1:GetComponent(UI.Text).fontSize = 35;
   Text1:GetComponent(RectTransform).sizeDelta=Vector2(600,300);


   Text2 =  GameObject.Instantiate(Resources.Load("Text"),Vector3(1600, 250, 0),Quaternion.identity,MainTransform)
   Text2:GetComponent(UI.Text).color = Color.white;
   Text2:GetComponent(UI.Text).fontSize = 35;
   Text2:GetComponent(RectTransform).sizeDelta=Vector2(600,300);


   Text3 =  GameObject.Instantiate(Resources.Load("Text"),Vector3(600, 800, 0),Quaternion.identity,MainTransform)
   Text3:GetComponent(UI.Text).color = Color.white;
   Text3:GetComponent(UI.Text).fontSize = 35;
   Text3:GetComponent(RectTransform).sizeDelta=Vector2(600,100);


   Slider_= GameObject.Instantiate(Resources.Load("Slider"),Vector3(960, 100, 0),Quaternion.identity,MainTransform)
   Slider_.transform.localScale= Vector3(2, 2, 2);
   Slider_:GetComponent(UI.Slider).value=1;
   Slider_:GetComponent(UI.Slider).onValueChanged:AddListener(
		function(v)
		    cube.transform.localScale= Vector3(v, v, v);
            cube.transform:GetComponent(AudioSource).volume=v
		end
	)




    
    --if you want to use update function,you need return class
	--如果你想去使用Update函数，你需要在main方法返回class
	return class
 

end
ColorTimeSpeed=0.001
color_ =Color(0,1,1)
minute_=60
function  class:update() --Lua中使用update 需要继承在Main 返回的Class
  --print("Lua Update 正在执行...")
 if (IsRunning)
  then
  cube.transform.localRotation= Quaternion.Euler(45,45,math.sin(Time.time)*180)

    if (color_.r == 0 and color_.g > 0 and color_.b == 1)
    then
            color_.g =color_.g - ColorTimeSpeed
            if (color_.g<0)
            then
                color_.g = 0
            end

    elseif (color_.g == 0 and color_.r < 1 and color_.b == 1)
    then
            color_.r =color_.r + ColorTimeSpeed
            if (color_.r > 1)
            then
                color_.r = 1
            end

    elseif (color_.r == 1 and color_.g == 0 and color_.b > 0)
    then
            color_.b =color_.b - ColorTimeSpeed
            if (color_.b < 0)
            then
                color_.b = 0
            end

    elseif (color_.b == 0 and color_.r == 1 and color_.g < 1)
    then
            color_.g =color_.g + ColorTimeSpeed
            if (color_.g > 1)
            then
                color_.g = 1
            end

    elseif (color_.r > 0 and color_.g == 1 and color_.b == 0)
    then
            color_.r = color_.r - ColorTimeSpeed
            if (color_.r < 0)
            then
                color_.r = 0
            end

    elseif (color_.r == 0 and color_.g == 1 and color_.b < 1)
    then
            color_.b =color_.b + ColorTimeSpeed
            if (color_.b > 1)
            then
                color_.b = 1
            end
    end
	 
      cube.transform:GetComponent(Renderer).material.color= color_
      Text:GetComponent(UI.Text).text= "<color=red>COLOR:</color>\nR:"..color_.r.."\nG:"..color_.g.."\nB:"..color_.b
      Text1:GetComponent(UI.Text).text= "<color=red>ROTATION:</color>\nx:"..cube.transform.localRotation.x.."\ny:"..cube.transform.localRotation.y.."\nz:"..cube.transform.localRotation.z
      Text2:GetComponent(UI.Text).text= "<color=red>SCALE:</color>\nx:"..cube.transform.localScale.x.."\ny:"..cube.transform.localScale.y.."\nz:"..cube.transform.localScale.z
  
     if(cube.transform:GetComponent(AudioSource).isPlaying)
     then
        Text3:GetComponent(UI.Text).text="<color=red>MUSIC TIME:</color>\n"..cube.transform:GetComponent(AudioSource).time / minute_.."/"..cube.transform:GetComponent(AudioSource).clip.length / minute_
     
     end

  
  
  
  
  end
end