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Question by Zero101 · Jul 26, 2017 at 05:37 PM · scripting problemextensions

Recursive extension methods

So what I want to do is to have my extension have "sub -extension" as transform.position has .x , .y and .z I want my code to have similiar things but i can't think of anything that would work and nested classes don't work.

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Answer by UnityCoach · Jul 26, 2017 at 06:32 PM

Hi, what you mention are members of a struct. Something similar to

 public struct Vector3
 {
     public float x;
     public float y;
     public float z;
 }

The Transform component has a position member of type Vector3.

Now "extension" methods extend a type. Like this :

 static public class Extensions
 {
     static public Vector3 MyMethod (this Vector3 v3)
     {
         return v3;
     }
 }

This allows you to call the new method on a variable of that type. Like

 Vector3 _position;
 _position = _position.MyMethod();

The return type must be the same as the type passed with this keyword.

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avatar image EnokV · Jul 26, 2017 at 06:50 PM 0
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Deleted my post, UnityCoach was quicker to respond and it was basically the same.

avatar image UnityCoach EnokV · Jul 26, 2017 at 07:01 PM 0
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Happens to me sometimes :)

avatar image Zero101 · Jul 26, 2017 at 07:13 PM 0
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Althou not exactly what I intended to ask, it basically makes sense to me what you are trying to convey, I understand and my code worked out, thanks ! :D

P.S. what i actually inteded was like : $$anonymous$$y$$anonymous$$ethod.Sub$$anonymous$$ethod(); where my $$anonymous$$ethod was just a parent where under went the Sub$$anonymous$$ethod(s), althou your answear made me figure out a slight workaround of just using Vector3 because it was practically what i was using

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Answer by grizzly48 · Jul 26, 2017 at 06:34 PM

Did you add "[System.Serializable]" to your nested class? Check here, if you wanna know what I mean: https://docs.unity3d.com/ScriptReference/Serializable.html

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