AsssetBunlder打包

unity3d，资源过多的话。可以压缩成一个资源包。加载出来后。可以解压。找到自己需要的资源

就想.net网站。很多图标都是放一个大图片上。而不是一个图标就是一个图片

因为是在项目编辑时候给资源打包。并不是项目运行。所以要用到Editor。untiy编辑类，脚本放到Editor文件夹中

 1 using UnityEngine;

 2 using System.Collections;

 3 using UnityEditor;

 4 public class AsssetBunlder

 5 {

 6     [MenuItem("Custom/SayHello")]

 7     static void SayHello()

 8     {

 9         Debug.Log("hello");

10     }

11 

12     [MenuItem("Custom/CreateBundle")]

13     static void CreateBoundle()

14     {

15         /*

16          * Selection类，在编辑状态下，获取选中的对象引用

17          */

18         Object[] objs = Selection.GetFiltered(typeof(object), SelectionMode.DeepAssets);

19 

20         string path = string.Empty;

21 

22         foreach (Object ojb in objs)

23         {

24             path = Application.streamingAssetsPath + "/" + ojb.name + ".unity3d";

25             //创建AssetBunlder

26             BuildPipeline.BuildAssetBundle(ojb, null, path);

27 

28             //BuildTarget.Android :不同平台打包路径不同

29             //BuildPipeline.BuildAssetBundle(ojb, null, path, BuildAssetBundleOptions.CollectDependencies, BuildTarget.Android);

30         }

31         //自动刷新

32         AssetDatabase.Refresh();

33     }

34 

35 

36 

37     [MenuItem("Custom/CreateAllBundle")]

38     static void CreateAllBoundle()

39     {

40         /*

41          * Selection类，在编辑状态下，获取选中的对象引用

42          */

43         Object[] objs = Selection.GetFiltered(typeof(object), SelectionMode.DeepAssets);

44 

45         string path = string.Empty;

46         path = Application.streamingAssetsPath + "/All.assetbundle";

47         //创建AssetBunlder

48         BuildPipeline.BuildAssetBundle(null, objs, path);

49 

50         //自动刷新

51         AssetDatabase.Refresh();

52     }

53 

54 

55     //场景打包

56     [MenuItem("Custom/StreamBundle")]

57     static void StreamBundleScene()

58     {

59         //要压缩的场景位置

60         string[] leves = { "Assets/Scene/Demo2.unity" };

61 

62         //压缩后。资源保存的位置

63         string path = Application.streamingAssetsPath + @"/Test.assetsbundle";

64 

65         /*

66          BuildAdditionalStreamedScenes：以流的方式打包场景

67          * StandaloneWindows64：在window64位电脑下打包

68          */

69         BuildPipeline.BuildPlayer(leves, path, BuildTarget.StandaloneWindows64, BuildOptions.BuildAdditionalStreamedScenes);

70 

71 

72 

73     }

74 

75 }

单击菜单。会出现你刚写的菜单选项

 

单击不同的选项就可以根据不同的资源打包了

当读取资源前必须解压

  1 using UnityEngine;

  2 using System.Collections;

  3 

  4 public class AssetBoundleContorller : MonoBehaviour

  5 {

  6 

  7 

  8     /*

  9      * streamingAssetsPath路径。在pc和Andoid,phone中是不同的

 10      * 所以要用预处理（#if #end if）

 11      */

 12 

 13     //    public static string RUL;

 14     //#if UNIYT_ANDROID

 15     //    "jar:file://"+ Application.dataPath+@"/assets";

 16     //#elif UNITY_IPHONE

 17     //    "";

 18     //#endif

 19 

 20 

 21     //#if UNITY_EDITOR

 22     //    string filepath = Application.dataPath + "/StreamingAssets" + "/my.xml";

 23     //#elif UNITY_IPHONE

 24     // string filepath = Application.dataPath +"/Raw"+"/my.xml";

 25     //#elif UNITY_ANDROID

 26     // string filepath = "jar:file://" + Application.dataPath + "!/assets/"+"/my.xml;

 27     //#else

 28 

 29     //#endif

 30 

 31     //    public static string RUL =

 32     //#if UNITY_IPHONE

 33     //     string filepath = Application.dataPath +"/assets";

 34     //#elif UNITY_ANDROID

 35     //     "jar:file://" + Application.dataPath + "/assets/";

 36     //#else

 37     // Application.streamingAssetsPath + @"/Sphere.unity3d";

 38     //#endif

 39 

 40 

 41 

 42     string filepath = string.Empty;

 43     void Awake()

 44     {

 45         #if UNITY_ANDROID

 46             filepath = "jar:file://" + Application.dataPath +@"/assets";

 47         #endif

 48 

 49         #if UNITY_IPHONE

 50             filepath = "Application.dataPath +@"/Raw";

 51         #endif

 52 

 53         #if UNITY_STANDALONE_WIN

 54             filepath = @"file://" + Application.streamingAssetsPath + @"/assets";

 55         #endif

 56     }

 57 

 58 

 59     // Use this for initialization

 60     void Start()

 61     {

 62         //1:拿到我们的Assetboundle

 63 

 64         //string path = @"file://" + Application.streamingAssetsPath + "/Sphere.unity3d";

 65 

 66         //StartCoroutine(GetAssetboundle(path));

 67 

 68         string path = @"file://" + Application.streamingAssetsPath + "/all.assetbundle";

 69         StartCoroutine(GetAssetboundle(path, "Sphere"));

 70     }

 71 

 72     /// <summary>

 73     /// 加载一个资源包

 74     /// </summary>

 75     /// <param name="path"></param>

 76     /// <returns></returns>

 77     IEnumerator GetAssetboundle(string path)

 78     {

 79         //没有缓存

 80         WWW www = new WWW(path);

 81 

 82 

 83         //缓存机制，缓存在 硬盘中  5代码版本号，每次缓存都会加1

 84         WWW www1 = WWW.LoadFromCacheOrDownload(path, 5);

 85 

 86         yield return www;

 87         //2:解压并实例化出来

 88         //www.assetBundl返回的是加载AssetBundle压缩文件

 89         //www.assetBundle.mainAsset：解压获取到物体

 90         Instantiate(www.assetBundle.mainAsset);

 91 

 92         //销毁assetBundle的内存

 93         www.assetBundle.Unload(false);

 94     }

 95 

 96 

 97 

 98     /// <summary>

 99     /// 很多资源打包在一起，根据名称找到相应的资源

100     /// </summary>

101     /// <param name="path"></param>

102     /// <param name="name"></param>

103     /// <returns></returns>

104     IEnumerator GetAssetboundle(string path, string name)

105     {

106         WWW www = new WWW(path);

107         yield return www;

108 

109         //查看资源里面所以的子资源

110         //www.assetBundle.LoadAll;

111 

112 

113         //Load 根据名字加载资源

114         Instantiate(www.assetBundle.Load(name));

115     }

116 

117 

118     // Update is called once per frame

119     void Update()

120     {

121         //加载场景

122         if (Input.GetMouseButtonDown(0))

123         {

124             string path = @"file://" + Application.streamingAssetsPath + "/Test.assetsbundle";

125             StartCoroutine(LoadScene(path, "Demo2"));

126         }

127     }

128 

129     /// <summary>

130     /// 

131     /// </summary>

132     /// <param name="path"></param>

133     /// <param name="name">打包场景前的scene名称</param>

134     /// <returns></returns>

135     IEnumerator LoadScene(string path, string name)

136     {

137         WWW www = new WWW(path);

138         yield return www;

139 

140         //使用之前必须要解压assetbundle

141         AssetBundle bundle = www.assetBundle;

142 

143         //加载场景

144         Application.LoadLevel(name);

145 

146         www.assetBundle.Unload(false);

147 

148     }

149 }

 对于不同平台打包路径是不同的。具体看

http://docs.unity3d.com/Manual/PlatformDependentCompilation.html