Acessing a Script Instance from Another Object

Question

I have this script:

 using UnityEngine;
 using System.Collections;
 
 public class Menu_Options : MonoBehaviour 
 {
     //Vars
     public Material GUI_N;
     public Material GUI_O;
     public static bool Active = false;
     public Transform Menu;
     public GameObject Cam;
     //Functions
     void OnMouseEnter()
     {
         renderer.material = GUI_O;
         Active = true;
     }
     void OnMouseExit()
     {
         renderer.material = GUI_N;
         Active = false;
     }
     void Update()
     {
         if(Active)
         {
             if(Input.GetMouseButtonUp(0))
             {
                 Options();
                 Debug.Log("Options");
             }
         }
     }
     void Options()
     {
         var s = Cam.GetComponent<SmoothCam>();
         s.Instance._SetTarget(Menu);
     }
 }

But i get this error:

 Assets/Scripts/Menu_Options.cs(37,19): error CS0176: Static member `SmoothCam.Instance' cannot be accessed with an instance reference, qualify it with a type name instead

This is how the other script is set up:

 using UnityEngine;
 using System.Collections;
 
 public class SmoothCam : MonoBehaviour {
 
     public static SmoothCam Instance;
     
     void Awake()
     {
         Instance = this;
     }
     
     public void _SetTarget(Transform t)
     {
         target = t;
     }
     ---The rest is not important---

What does "qualify it with a type name" mean, and how can i fix or work around this?

Answer 1

Best Answer

Answer by Kmulla · Apr 18, 2012 at 08:35 PM

Try something like this:

 public class Menu_Options : MonoBehaviour {
     private SmoothCam SmoothCamScript;

     void Awake() {
         SmoothCamScript = Cam.GetComponent<SmoothCam>();
     }
     ...
     SmoothCamScript._SetTarget(Menu);

I've never tried anything with an 'instance' in the other script, but this method usually works for me :)

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TheDarkVoid · Apr 18, 2012 at 08:44 PM 0

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yay, that works perfect, i usually use instance when it's on the same object. thank you so much for your help.

Tseng · Apr 18, 2012 at 08:47 PM 0

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The "Instance" thing you used was actually called singleton pattern (though, its more of a hybrid, but similar to it). Actually this pattern should be used used only in certain situations (Game$$anonymous$$anager for example).

Static variables are accessed via $$anonymous$$yClass.myStaticVariable w/o needing an instance of the script

Answer 2

Answer by Lttldude · Apr 18, 2012 at 08:30 PM

I think

 var s = Cam.GetComponent<SmoothCam>();

should become

 SmoothCam s = Cam.GetComponent<SmoothCam>();

because it defines the type s is.

Then if you want to run some function or get some variable off of that script use it like this

 s._SetTarget(transform);

Hope this helps.

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TheDarkVoid · Apr 18, 2012 at 08:37 PM 0

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i'm trying to run the _SetTarget function located in the SmoothCam script from within the $$anonymous$$enu_Options script. that didn't work.

Answer 3

Answer by Tseng · Apr 18, 2012 at 08:45 PM

Your "Instance" variable is static, you don't need to obtain an instance to access it

 void Options() {
    var s = Cam.GetComponent<SmoothCam>();
    s.Instance._SetTarget(Menu);
 }

Just do

 SmoothCam.Instance._SetTarget(Menu);

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Acessing a Script Instance from Another Object

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