Trouble Understanding Basic Editor Scripts (Please Help!)

I'm working through Unity's Editor Scripting beginner tutorial, but for the life of me I can't grasp how 'target' is meant to be used. I'm also trying to translate on the fly from JS to C#, which is hard since I don't know any JS

If anyone can spare a free moment to translate this JS example into C#, it would save me many tears and headbashing:

first in JS:

Code (csharp):

1.  
2.  
3. @CustomEditor (LookAtPoint)
4. class LookAtPointEditor extends Editor {
5.     function OnInspectorGUI () {
6.         [B]// I'm missing the following line: //[/B]
7.         [B]target.lookAtPoint = EditorGUILayout.Vector3Field ("Look At Point", target.lookAtPoint);[/B]
8.         if (GUI.changed)
9.             EditorUtility.SetDirty (target);
10.     }
11. }
12.  
13.  

and here's what I've got so far in C# (but it's incomplete, as I don't understand how to use 'target')

Code (csharp):

1.  
2.  
3. using UnityEngine;
4. using UnityEditor;
5. using System.Collections;
6.  
7. [CustomEditor(typeof(LookAtPoint))]
8. public class LookAtPointEditor : Editor
9. {
10.     public override void OnInspectorGUI ()
11.     {  
12.                 [B]// missing line //[/B]
13.                 if (GUI.changed)
14.         {
15.                         EditorUtility.SetDirty (target);
16.         }
17.         }
18. }
19.  
20.  
21.  

Muchas Gracias!
-Orion

 

target is the selected object that is being edited by the Editor script. So, in your case, it would be the LookAtPoint component on the selected GameObject. I think the line you have highlighted would probably be the same in JS and C#... it is just defining a Vector3Field widget to get a new value for the lookAtPoint variable in the script component.

 

Thanks for the help. Still having trouble- Could you take a look?:

So I copied that line into my script. The resulting c# code:

Code (csharp):

1.  
2.  
3. using UnityEngine;
4. using UnityEditor;
5. using System.Collections;
6.  
7. [CustomEditor(typeof(LookAtPoint))]
8. public class LookAtPointEditor : Editor
9. {
10.     public override void OnInspectorGUI ()
11.     {
12.                  target.lookAtPoint = EditorGUILayout.Vector3Field ("Look At Point", target.lookAtPoint);
13.                  if (GUI.changed)
14.                  {
15.                         EditorUtility.SetDirty (target);
16.              }
17.          }
18. }
19.  
20.  

..gives me this error:

"Type `UnityEngine.Object' does not contain a definition for `lookAtPoint' and no extension method `lookAtPoint' of type `UnityEngine.Object' could be found (are you missing a using directive or an assembly reference?)"

 

You need to cast the target to the Class your Editing (LookAtPoint).

(target as LookAtPoint).lookAtPoint = ....

or

LookAtPoint mycomponent = (LookAtPoint)target; // and start using mycomponent instead of target

 

aha! Thank you sirs, thank you, thankyou