Unity3D打包场景，用www加载场景

1、打包场景（转）

    把场景文件打包成 .unity3d 后缀的文件。

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;

public class PackAB {

#if UNITY_EDITOR
    [MenuItem("Custom Editor/Create Scene")]
    static void CreateSceneALL()
    {
        //清空一下缓存  
        Caching.ClearCache();

        //获得用户选择的路径的方法，可以打开保存面板（推荐）
        string Path = EditorUtility.SaveFilePanel("保存资源", "SS", "" + "Scene_02", "unity3d");
        //string Path = Application.dataPath + "/Scene_02.unity3d";

        //另一种获得用户选择的路径，默认把打包后的文件放在Assets目录下
        //string Path = Application.dataPath + "/MyScene.unity3d";

        //选择的要保存的对象 
        string[] levels = { "Assets/Scenes/Scene_02.unity" };

        //打包场景  
        BuildPipeline.BuildPlayer(levels, Path, BuildTarget.StandaloneWindows64, BuildOptions.BuildAdditionalStreamedScenes);

        // 刷新，可以直接在Unity工程中看见打包后的文件
        AssetDatabase.Refresh();
    }
#endif
}

2、用WWW下载刚才打包的.unity3d文件并加载出来。

using UnityEngine.SceneManagement;
using UnityEngine;
using System.Collections;

public class SceneCreate : MonoBehaviour
{
    public GameObject prefab1;
    public Transform trans;
    void Start()
    {
        //加载.unity3d后缀的场景文件
        StartCoroutine("LoadScene");                                     
    }
    private IEnumerator LoadScene()
    {
        WWW download = WWW.LoadFromCacheOrDownload("file://" + Application.dataPath + "/Scene_02.unity3d", 1);  
        yield return download;
        var bundle = download.assetBundle;
        AsyncOperation ao = SceneManager.LoadSceneAsync("Scene_02", LoadSceneMode.Additive);   //不需要在build and settings窗口中设置好，这里可以直接用
        yield return ao;
        Scene newScene2 = SceneManager.GetSceneByName("Scene_02");  //获取刚才加载的场景
        SceneManager.SetActiveScene(newScene2);                     //把场景激活
        GameObject newObj = GameObject.Instantiate(prefab1, trans.position, trans.rotation);    //在场景中实例化prefab
    }
}