关于Unity，Laya学习，第一步加载Unity加载场景

大家都知道Unity和Laya结合在一起可以做网页甚至可以做H5端的游戏，下边附上Laya加载Unity场景的代码

import CameraFollow from "./CameraFollow";


export default class GameLoad extends Laya.Script {
 
    // 更多参数说明请访问: https://ldc2.layabox.com/doc/?nav=zh-as-2-4-0
    
    constructor() { super();

        Laya.init(1920,1080,Laya.WebGL);
     }
    
    public CameraObj:Laya.MeshSprite3D;
    public characterObj:Laya.MeshSprite3D;

  
    onAwake():void
    {
        this.LoadU3DScene();
  
    }
  
    private LoadU3DScene():void
    {
        let MainString:string="D:/Users/Administrator/Documents/CCT/bin/res/Scene/LayaScene_Lobby/Conventional/Lobby.ls";
        let SubString:string="res";
        let Scenepath:string=MainString.substring(this.Index(MainString,SubString)-1);
        Laya.Scene3D.load(Scenepath,Laya.Handler.create(this,this.OnComplete));
    }

    private OnComplete(scene:Laya.Scene3D):void
    {
       Laya.stage.addChild(scene);
       this.InitMySceneAllThing(scene);
    }


    private InitMySceneAllThing(scene:Laya.Scene3D):void
    {
        this.CameraObj=scene.getChildAt(0) as Laya.MeshSprite3D;
        console.log("CameraObjName:"+this.CameraObj.name);
        this.characterObj=scene.getChildAt(3) as Laya.MeshSprite3D;
        console.log("CharacterObjName:"+this.characterObj.name);
        var mainCam=scene.getChildByName("Main Camera") as Laya.Camera;
        let CameraFollowScript:CameraFollow=this.CameraObj.addComponent(CameraFollow) as CameraFollow;
        CameraFollowScript.InitMySelfGameObj(scene,mainCam);
          
    }
  

    private Index(MainString:string,SubString:string):number
    {
       if(MainString==null||SubString==null)
       {
           return -1;
       }
       
       
       let MainStringLength:number=MainString.length;
       let SubStringLength:number=SubString.length;
       console.log("MainStringLength:"+MainStringLength);
       console.log("SubStringLength:"+SubStringLength);

       let pos=-1;
       let prepos=pos;

       let i=0;
       let j=0;
     
       while(i<MainStringLength&&j<SubStringLength)
       {
           if(MainString[i]==SubString[j])
           {
               ++i;
               ++j;
           }
           else
           {
               i=i-j+1;
               j=0;
           }
       }
       if(j==SubStringLength)
       {
           prepos=pos;
           pos=i-j;
       }

        return pos+1;

    }

}
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