Question Reference private variables without making it public

Google translate, so sorry if something is not understood.

Hello, does anyone know if it is possible to reference a variable from another script that is private without making it public?

Perhaps another way of explaining myself is by saying that currently I would like to create a script B linked to script A, since script A has become very large and it has many variables that I would not want to make public, is there a way to link two scripts so that they have the same variables? variable?? An answer would really help me a lot, thank you very much.

 

It depends on how strong you want it private, if you just want other class to have read access but not write access, you can do this:

Code (CSharp):

1.  
2. public class A
3. {
4.     private int someInt;
5.     public int SomeInt => someInt; // getter only property
6.     // or
7.     public int SomeInt { get; private set; } // private setter property
8. }
9.  

if you want to keep A's variable totally secret, thant a nested class technique could also be used:

Code (CSharp):

1.  
2. public class A
3. {
4.     private int someInt;
5.  
6.     public class B
7.     {  // if you want to separate files, you can define A as partial
8.         private A a;
9.         public B(A a)
10.         {
11.             this.a = a;
12.         }
13.         private void AddToASomeInt()
14.         {
15.             // nested class can access parent class's private field
16.             a.someInt += 1;
17.         }
18.     }
19. }

If you want totally same variable, than you can create a data container class, and let A and B have the same instance.

Code (CSharp):

1.  
2. public class DataContainer
3. {
4.     public int SomeInt;
5. }
6.  
7. // if both class received same DataContainer instance, they share same variables.
8. // DataContainer's field is public, but A and B holds it has private, so you can't access DataContainer by A or B
9. // (except who gives DataContainer to A and B)
10. public class A
11. {
12.     private DataContainer dataContainer;
13.     public void SetDataContainer(DataContainer d)
14.     {
15.         dataContainer = d;
16.     }
17. }
18.  
19. public class B
20. {
21.     private DataContainer dataContainer;
22.     public void SetDataContainer(DataContainer d)
23.     {
24.         dataContainer = d;
25.     }
26. }
27.  

 

Hello,

One of the way to achieve that is to use an Accessor. You can read more about it here.
There is a trick, if you define an accessor without defining a set, you create a ReadOnly accessor. That mean any other script can read the value but cannot modify it.

Code (CSharp):

1.  
2. int age = 23;
3.  
4. // Accessor
5. int Age
6. {
7.    get { return age; }
8. }
9.  

There is others solutions, more complex, like inheritance, depending on your specific need.

 

I think the partial keyword is just what you're looking for.

Player.Variables.cs:

Code (CSharp):

1. public partial class Player : MonoBehaviour
2. {
3.     private float speed;
4. }

Player.Methods.cs:

Code (CSharp):

1. public partial class Player
2. {
3.     private void Update() => transform.Translate(transform.forward * speed);
4. }

 

Definitely sounds like you want partial (explained above).

 

thank you very much, it worked perfectly