[Unity打包assetbundle]适用于5.x

<1> 先标记所有.prefab资源 当然 也可以标记.png 等等

<2>打包

<3>源码

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;
using System.IO;
using System.Text;
using System.Diagnostics;

public class BuildAsset : MonoBehaviour
{
//输出目录
private const string outPath = "Assets/Res/AssetBundle";
//打包目录
// private const string prefabsPath = "Assets/Res/Arts/Prefabs/";
private const string prefabsPath = "Assets/Resources/";
private const string atlasPath = "Assets/Res/Arts/Atlas/";

/// <summary>
/// 打包所有被标记过AssetBundle name的资源
/// </summary>
[MenuItem("BuildAsset/BuildAll", false, 1002)]
static void BuildABs()
{
if (!Directory.Exists(outPath))
{
Directory.CreateDirectory(outPath);
}
BuildPipeline.BuildAssetBundles(outPath, BuildAssetBundleOptions.None, BuildTarget.StandaloneWindows);
//游戏启动 加载ab依赖文件 加载bundle再从依赖文件中查找此bundle的依赖
AssetDatabase.Refresh();
}

/// <summary>
/// 打包Res/Prefabs下面的所有资源
/// </summary>
[MenuItem("BuildAsset/BuildAB", false, 1001)]
static void BuildFormResPrefabsPath()
{
if (!Directory.Exists(prefabsPath))
{
Directory.CreateDirectory(prefabsPath);
}
if (!Directory.Exists(atlasPath))
{
Directory.CreateDirectory(atlasPath);
}
Stopwatch watch = new Stopwatch();
watch.Start();
markRes(prefabsPath, ".prefab");
markRes(atlasPath, ".png", true);
BuildABs();
watch.Stop();

EditorUtility.DisplayDialog("提示", "资源打包ab完毕 耗时 秒：" + (watch.ElapsedMilliseconds / 1000).ToString(), "确定");
}

//标记所有资源
static private void markRes(string path, string suff, bool isAll = false)
{
if (Directory.Exists(path))
{
string name = null;
DirectoryInfo dirInfo = new DirectoryInfo(path);
FileInfo[] files = dirInfo.GetFiles("*", SearchOption.AllDirectories);
if (isAll)
{
name = getFolderName(path);
}

for (int i = 0; i < files.Length; i++)
{
if (files[i].Name.EndsWith(suff))
{
AssetImporter imp = AssetImporter.GetAtPath(path + files[i].Name);
if (imp != null)
{
if (!isAll)
{
imp.assetBundleName = files[i].Name.Replace(suff, ".assetbundle");
}
else
{
imp.assetBundleName = name + ".assetbundle";
}
}
}
}
}
}

static private string getFolderName(string path)
{
string[] lst = path.Split('/');
return lst[lst.Length - 2];
}

static public void Write(string key, List<string> vals)
{
FileStream fs = new FileStream("E:\depends.txt", FileMode.Create);
StringBuilder value = new StringBuilder();
value.Append(key + ':');
for (int i = 0; i < vals.Count; i++)
{
value.Append(vals[i] + ',');
}
//获得字节数组
byte[] data = System.Text.Encoding.Default.GetBytes(value.ToString());
//开始写入
fs.Write(data, 0, data.Length);
//清空缓冲区、关闭流
fs.Flush();
fs.Close();
}

}