Special folders in unity3d and their meanings

1.Editor

Editor The folder can be in the root directory , It can also be in subdirectories , Just call it Editor Can . For example, catalog ：/xxx/xxx/Editor   and /Editor It's the same , No matter how many are called Editor Any folder in the library can .Editor All resource files or script files placed below will not be typed into the release package , And scripts can only be used when editing . Generally, some tool class scripts are placed here , Or some of them for editing DLL. For example, we are now going to make a similar skill editor , So it's better to put the editor's code here , Because we only need the files generated by the editor when we actually run , Without the core code of the editor .

2.Editor Default Resources

Editor Default Resources Notice that there are spaces in the middle , It has to be placed in Project In the root of the view , If you want to put it /xxx/xxx/Editor Default Resources This is not going to work . You can put some resources used by the editor here , Such as the picture 、 text file 、 wait . It and Editor No folder will be typed into the final release package , Only for development use . You can go straight through EditorGUIUtility.Load To read the resources in this folder .

1 2	TextAssettext=EditorGUIUtility.Load("test.txt")asTextAsset;   Debug.Log(text.text);

3.Gizmos

I don't think this folder is really useful , As shown in the following code, it can be used in Scene In the view, draw a for a certain coordinate icon. Its advantage is that it can be passed on Vecotor3 As the location of the picture . Parameters 2 Is the name of the picture , Of course, this picture must be placed in Gizmos Under the folder .

1 2 3

voidOnDrawGizmos(){            Gizmos.DrawIcon(transform.position,"0.png",true);       }

If you just want to hang on to a game object , So in Inspecotr You can set it directly ..

Here I still want to talk about OnDrawGizmos() Method , As long as the script inherits MonoBehaviour after , And it will be executed every frame in edit mode . The released game will not be executed , It can only be used in scene Draw some small objects in the view . For example, we need to make camera tracks , So it must be in Scene Make a preview line in the view , Then use Gizmos.DrawLine and Gizmos.DrawFrustum No better .

4.Plugins

If you do mobile game development in general andoird perhaps iOS To pick up some sdk You can put sdk Dependent library files Put it here , such as .so .jar .a file . In this way, after typing the package, you will automatically type these documents in your package .

5.Resources

It can be in the root directory , It can also be in subdirectories , Just call it Resources Can . For example, catalog ：/xxx/xxx/Resources   and /Resources It's the same , No matter how many are called Resources Any folder in the library can .Resources The resources in the folder will be packed in no matter whether you use them or not .apk perhaps .ipa

Resource.Load ： Both edit time and run time are available through Resource.Load To read directly .

Resources.LoadAssetAtPath() ： It can read Assets Resources in any folder under the directory , It can be used when editing or when the editor is running , But it can't be used on a real machine , Its path is ”Assets/xx/xx.xxx” It has to be this path , And with the suffix of the file .

AssetDatabase.LoadAssetAtPath()： It can read Assets Resources in any folder under the directory , It can only be used in editing . Its path is ”Assets/xx/xx.xxx” It has to be this path , And with the suffix of the file .

I think we should try to use it when developing on the computer Resource.Load() perhaps Resources.LoadAssetAtPath() , If you choose some resources on your mobile phone, you need to call assetbundle, Some resources Resource.Load(). So what are you doing .apk perhaps .ipa When Now, it is all automated packaging with scripts , Before packing It can be used AssetDatabase.MoveAsset() Pack it into assetbundle The original file from Resources Move out under the folder and pack , In this way, the printed operation package will not contain redundant files . After packing, move the moved folder back .

6. StreamingAssets

The resources in this folder will also be packaged in .apk perhaps .ipa It and Resources Is the difference between the ,Resources Will compress the file , But it won't be compressed and packed intact . And it's a read-only folder , That is, the program can only read Can't write . It has different paths under different platforms , But you can use Application.streamingAssetsPath It will choose the corresponding path according to the current platform .

Some games use all their resources assetbundle, Will put some initial assetbundle Put it in StreamingAssets Under the table of contents , When running the program, put these assetbundle Copy in Application.persistentDataPath Under the table of contents , If these assetbundle If there is an update , Then download to the new assetbundle In the Application.persistentDataPath Overwrite the original directory .

because Application.persistentDataPath The directory is the sandbox directory of the application , So there is no such directory before packaging , This directory is not available until the application is installed on the phone .

StreamingAssets The resources in the directory are uncompressed , So it takes up more space , For example, your application installed on your mobile phone will take up 100M The capacity of , So you're... Again StreamingAssets Put a 100M Of assetbundle, Then it will be installed on the mobile phone at this time 200M The capacity of .

7. Hide Folder
With .( spot ) The beginning of the folder will be Unity Ignore . Resources in this kind of folder will not be imported , Scripts don't compile . It won't show up in Project In the view .

8.WebPlayerTemplates
To replace web build The default page of . None of the scripts in this folder will be compiled . This folder must be used as Assets Direct subdirectories of folders .