Unity5.x AssetBundles 创建和加载

1. 创建工具类 Editor/ExportAssetBundles.cs

using System.IO;

using UnityEditor;

public class ExportAssetBundles

{

[MenuItem("Assets/Build AssetBundles")]

static void BuildAllAssetBundles()

{

string assetBundleDirectory = "Assets/AssetBundles";

if (!Directory.Exists(assetBundleDirectory)) {

Directory.CreateDirectory(assetBundleDirectory);

}

BuildPipeline.BuildAssetBundles(assetBundleDirectory, BuildAssetBundleOptions.None, BuildTarget.StandaloneWindows);

}

}

2. 选择 Prefab 文件，在右侧 Inspector 窗口，设置 Bundle name 和 variant。

设置 AssetBundle 属性

3. 设置后右键点击选中的 Prefab 文件，在弹出的菜单中点击 Build AssetBundles。

4.程序在 Assets/AssetBundles 中创建了资源目录并且生成了 qart.unity3d 资源包。

5.资源包打好以后可以将其放在本地服务器上，例如：http://localhost/AssetBundles/qart.unity3d。

6.创建入口 MonoBehavior 进行测试：

using System.Collections;

using System.Collections.Generic;

using System.IO;

using UnityEngine;

public class LoadFromFileExample : MonoBehaviour {

private string url = "http://localhost/AssetBundles/qart.unity3d";

void Start() {

Load("Houseboat");

}

public void Load(string watercraftName) {

StartCoroutine(LoadBundle(watercraftName));

}

IEnumerator LoadBundle(string bundleName) {

while (!Caching.ready) {

yield return null;

}

//Begin download

WWW www = WWW.LoadFromCacheOrDownload(url, 0);

yield return www;

//Load the downloaded bundle

AssetBundle bundle = www.assetBundle;

//Load an asset from the loaded bundle

AssetBundleRequest bundleRequest = bundle.LoadAssetAsync(bundleName, typeof(GameObject));

yield return bundleRequest;

//get object

GameObject obj = bundleRequest.asset as GameObject;

Instantiate(obj);

bundle.Unload(false);

www.Dispose();

}

}