.unity3d格式的导出与加载

1.导出。unity3d格式资源：

     http://game.ceeger.com/Script/BuildPipeline/BuildPipeline.BuildAssetBundle.html

    这里我稍微改了一点点~~~代码如下：

using UnityEngine;using UnityEditor;using System.IO;public class BuildAssetBundlesFromDirectory {[@MenuItem("Asset/Build AssetBundles From Directory of Files")]static void ExportAssetBundles () {// Get the selected directory//获取选择的目录string path = AssetDatabase.GetAssetPath(Selection.activeObject);Debug.Log("Selected Folder: " + path);if (path.Length != 0) {path = path.Replace("Assets/", "");string [] fileEntries = Directory.GetFiles(Application.dataPath+"/"+path);foreach(string fileName in fileEntries) {string filePath = fileName.Replace("\\","/");int index = filePath.LastIndexOf("/");filePath = filePath.Substring(index+1);Debug.Log("filePath:"+filePath);string localPath = "Assets/" + path+"/";if (index > 0)localPath += filePath;Object t = AssetDatabase.LoadMainAssetAtPath(localPath);if (t != null) {Debug.Log(t.name);string bundlePath = "Assets/" + path + "/" + t.name + ".unity3d";Debug.Log("Building bundle at: " + bundlePath);// Build the resource file from the active selection.//从激活的选择编译资源文件BuildPipeline.BuildAssetBundle(t, null, bundlePath, BuildAssetBundleOptions.CompleteAssets);} }}}}

  注意：string filePath = fileName.Replace("\\","/");  把“\”转化成“/”。“Assets/path/.prefab”和“path\.prefab”

把以上代码的脚本放到一个文件夹里面，选中该文件夹，再点击菜单栏上的按钮"Asset/Build AssetBundles From Directory of Files"，就成功转成unity3d格式了

2.加载.unity3d：

function Start () {var www = new WWW ("file:///"+Application.dataPath+"/resourse/Cube.unity3d");yield www;Instantiate(www.assetBundle.mainAsset);}

注：Application.dataPath获取改程序的资源路径。

function Start (){     var www = WWW.LoadFromCacheOrDownload("http://210.30.12.33:8080/YangChun/file/Cube.unity3d",5);       yield www;    if (www.error != null)    {        Debug.Log (www.error);        return;    }   Instantiate(www.assetBundle.mainAsset);}

      我试了一下用Resources类的方法还不能加载unity3d格式的文件。不过如果是本地加载的话直接加载prefab就可以了，用不着用unity3d格式了。貌似

LoadFromCacheOrDownload方法只能加载.unity3d格式文件，我用Tomcat服务器小测了一下，可以达到缓存的效果。

3.加载场景的话：

先把场景转化成unity3d格式的。

注：以下代码的脚本必须放在Editor文件夹下（如果没有改文件，新建一个就行），BuildTarget注意哈，转化成不同的平台~~~BuildTarget.Andrdoid

@MenuItem ("Build/BuildWebplayerStreamed")static function MyBuild(){var levels : String[] = ["Assets/yaya.unity"];BuildPipeline.BuildStreamedSceneAssetBundle( levels, "yaya.unity3d", BuildTarget.WebPlayer);//BuildTarget.Andrdoid}
或者
@MenuItem ("Build/BuildWebplayerStreamed")static function MyBuild(){BuildPipeline.BuildPlayer(["Assets/main.unity"],"VR.unity3d",BuildTarget.WebPlayer, BuildOptions.BuildAdditionalStreamedScenes); }



function Start () {// Download compressed scene. If version 5 of the file named "Streamed-Level1.unity3d" was previously downloaded and cached.// Then Unity will completely skip the download and load the decompressed scene directly from disk.//下载压缩的场景。如果名为Streamed-Level1.unity3d的文件版本为5，预先下载并缓存。//然后Unity将完全跳过下载并直接从磁盘加载解压的场景。var download = WWW.LoadFromCacheOrDownload ("http://210.30.12.16:8080/chunge/yaya.unity3d", 5);yield download;// Handle errorif (download.error != null){Debug.LogError(download.error);return;}// In order to make the scene available from LoadLevel, we have to load the asset bundle.// The AssetBundle class also lets you force unload all assets and file storage once it is no longer needed.//为了使场景LoadLevel可用，必须加载资源包//AssetBundle类，还可以强制卸载所有的资源和文件存储，一旦不再需要。var bundle = download.assetBundle;// Load the level we have just downloaded//加载刚才下载的关卡Application.LoadLevel ("yaya");//这里面的“yaya”是指“Assets/yaya.unity”而不是指“yaya.unity3d”}





  
	
				
	
					   
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