unity3d 自訂資源套件使用

1.建立資源套件：

 public   class  Sript_01 : MonoBehaviour

{

          [MenuItem ("自訂資源套件/建立資源套件")]

          static void ExecCreateAssetBunldes()

          {

                       //設定儲存資源套件的根路徑

                       string targetDir = Application.dataPath + "/AssetBundles";

                     Object[] SelectedAsset = Selection.GetFiltered(typeof (Object),SelectionMode.DeepAssets);

                     //建立一個目錄，用於儲存資源套件

                     if（！Eirectory.Exists(targetDir)）

                     {

                              Directory.CreateDirectory(targetDir);

                     }

                    for(int i=0;i<selectedAsset.Length;i++)

                     {

                              //產生資源套件的完整路徑

                              string filepath = targetDir + "/" + SelectedAsset[i].name + ".unity3d";

                               //根據路徑判斷資源套件檔案是否存在

                               if（File.Exists(filePath)）

                               {

                                          File.Delete(filePath);

                             }

                             //產生新的資源套件檔案

                             if(BuildPipeline.BuildAssetBundle(SelectedAsset[i],null,filePath,BuildAssetBundleOptions.CollectDependencies))

                            {

                                       Debug.Log(“資源套件產生成功”);

                                       AssetDatabase.Refresh();

                               }

                            else

                                      Debug.Log("資源套件檔案產生失敗");

}

                      }

           }

}

 Note: This is an editor class. To use it you have to place your script in
Assets/Editor inside your project folder. Editor classes are in the UnityEditor namespace so for C# scripts you need to add "using UnityEditor;" at the beginning of the script.

 

2.下載資源套件

IEnumerator loadBundleMat(string name)

{

            Material mat;

         //資源在原生路徑

            WWW date = new WWW("file://" + Application.dataPath + "/AssetBundles/" + name + "./unity3d");

 //等待下載完成

             yield return date;

//將下載得到的資源強制轉換成材質資源

               mat = (Material)date.assetBundle.mainAsset;

//更換為下載的資源

              renderer.material = mat;

//釋放資來源物件

                date.assetBundle.Unload(false);

}

 

IEnumerator loadBundleObject (string name)

{

      WWW date = new WWW("file://" + Application.dataPath + "AssetBundles/" + name + ".unity3d");

       //等待下載完成，並且複製遊戲對象,

       yield return Instantiate(date.assetbundle.mainAsset);

      //釋放資來源物件

         date.assetbundle.Unload(false);

}

注釋： 資源套件下載完成後，資源檔將保持在assetBundle.mainAsset 對象中，接著使用該對象即可。由於連續下載資源套件對象會出錯，所以下載完資源後需要手動釋放對象。