C# Create new editor menu from array

Hello,

Is it possible to create an editor menu from an array? I'm getting all the prefabs in a folder from an editor script and was wondering how to dynamically create editor menus from the array of prefabs to load them from.

 

I don't understand what you're trying to do. Perhaps you can explain a bit more.

 

Do I understand you want to give a restricted choice to the user of your editor?

 

It is not exactly clear what you are asking for, but one option might be to just provide a single menu with all the commands and then add validators to disable the ones which are not appropriate for the current context:

Code (csharp):

1.  
2. using UnityEngine;
3. using UnityEditor;
4.  
5. static class YourMenuItems {
6.     [MenuItem("Your Menu/Foo")]
7.     private static void Foo() {
8.         Debug.Log(Selection.activeTransform.name);
9.     }
10.     [MenuItem("Your Menu/Foo", true)]
11.     private static bool ValidateFoo() {
12.         // Menu item is only useful when there is a user selection.
13.         return Selection.activeTransform != null;
14.     }
15. }
16.  

Or, perhaps you are wanting to add a custom dynamic menu within your own editor window/inspector?

Code (csharp):

1.  
2. using UnityEngine;
3. using UnityEditor;
4.  
5. public class YourEditorWindow : EditorWindow {
6.     private void OnGUI() {
7.         if (GUILayout.Button("My Menu"))
8.             ShowMyMenu(GUILayoutUtility.GetLastRect());
9.     }
10.  
11.     private void ShowMyMenu(Rect position) {
12.         var menu = new GenericMenu();
13.  
14.         menu.AddItem(new GUIContent("Always Available A", false, () => {
15.             Debug.Log("Clicked 'Always Available A' menu item!");
16.         }));
17.  
18.         menu.AddSeparator("");
19.  
20.         menu.AddItem(new GUIContent("Always Available B", false, () => {
21.             Debug.Log("Clicked 'Always Available B' menu item!");
22.         }));
23.  
24.         if (Selection.activeTransform != null) {
25.             // Only show this menu when an object is selected!
26.             menu.AddItem(new GUIContent("Name of Selected Transform", false, () => {
27.                 Debug.Log(Selection.activeTransform.name);
28.             }));
29.         }
30.  
31.         menu.DropDown(position);
32.     }
33. }
34.  

I hope that this helps

 

I apologize, I forgot about this thread. Here's what I wanted to do.

I have traffic car Prefabs in a folder in the Assets folder of the project. I want the user to be able to add vehicle prefabs, and then have them come up in the menu option. So, adding a menu option per prefab in the folder, dynamically.

 

What numberkruncher posted should give you just that.

Code (csharp):

1.  
2. GenericMenu menu = new GenericMenu();
3. foreach(GameObject prefab in AssetDatabase.LoadAllAssetsAtPath(PATH))
4. {
5.     menu.AddItem(new GUIContent(prefab.name), false, SelectPrefab, prefab);
6. }
7.  

Or something similar...

If you have a lot of object, you can maybe look into the link in my signature. It's a modal window for listing choices to the user in editor mode.