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Question by trololo · Apr 03, 2014 at 10:20 AM · inputstaticinputmanager

Call to "Input" into a static class => null ref

Hi, I try to make my own InputManager (a static class) but when i do a call to the Unity Input class into a method (Input.GetMouseButtonDown() for example), i got a NullReferenceException once... And it works properly but i still have a error. Thanks!

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avatar image trololo · Apr 03, 2014 at 01:36 PM 0
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UP please

avatar image CodeElemental · Apr 03, 2014 at 01:37 PM 0
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Post some code and the full error message you get.

avatar image trololo · Apr 03, 2014 at 02:02 PM 0
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 Update()
 {
    if(Input$$anonymous$$anager.IsClicked()) // do some cool stuff
 }

 // ...

 public static class Input$$anonymous$$anager 
 {
     public static bool IsClicked()
     {
         if(Input.Get$$anonymous$$ouseButtonDown(0) || (Input.touchCount > 0 && Input.GetTouch(0).phase == TouchPhase.Began))
             return true;
 
         return false;
     }
 }

And I got a null ref exception in the Update() function (only once!).

avatar image trololo · Apr 04, 2014 at 12:06 PM 0
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dfeb2480_bump.png (27.3 kB)
avatar image stevethorne · Apr 04, 2014 at 01:34 PM 0
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I think we need to know more about the class that has that update function in it. Is that the actual code for it? Why doesn't it have a return type?

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Answer by flamy · Apr 04, 2014 at 12:42 PM

The best way to make managers in unity would be using Singleton pattern, it would be much better than all static classes.

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avatar image trololo · Apr 04, 2014 at 12:47 PM 0
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Okay, but i don't really want to instantiate this class actually and i don't want it to inherit $$anonymous$$onobehaviour either...

avatar image flamy · Apr 04, 2014 at 01:23 PM 0
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singleton is much simple if it is not monobehaviour.... ins$$anonymous$$d of instantiate line make it as new $$anonymous$$yclass()

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