How to call variable from java script to c# Script? :(

[princeadj14]

//Java Script Variable

    public var papers : int = 0; 

//C# Script that needs the variable

    GUILayout.BeginHorizontal();
    GUILayout.Label (pl.PlayerName);

    papers = pl.Score;
    GUILayout.Label (papers.ToString());
		
    GUILayout.EndHorizontal();

[chillersanim]

There are multiple possibilities to access a field of another script, here are a few:

1. Make a public field in the script that needs the other script. This field should be of type “gameObject”. Make a reference in the unity scene to the searched object (drag the searched object into the inspector field of the first script). Then access the field from the script. Get the script from the object and you can access the searched field.
2. Use the singleton pattern for the searched script
3. Make a static class and access the field directly over the class

If you have multiple instances of the searched script (with the papers-field), then you should use the first possibility.
Else if you have only one instance of the searched script (and you know that this will not change) then I would reccomend you the second possibility.
The thirt possibility is similarly to the second case, but is not a clean possibility and should be avoided.

---

Code Examples

---

1)
This code is for the class that needs to get the value.

public GameObject targetObject;
public int GetPapers () 
{
    if (targetObject != null)
    {                
        var script = targetObject.GetComponent<YourScript>() as YourScript;
        if (script != null)
        {
            return script.papers;
        }
    }
    return -1;
}

The “targetObject” is a field of the accessing class. The method “GetPapers” gets you the value of the variable, it returns -1 if the targetObject is null or the script was not found.

---

2)
This code is for the class that contains the value.

// Singleton example
public class YourScript : MonoBehaviour 
{
    // the local (and only) instance
    private YourScript instance;

    // declare the fields as normal and access the with the instance
    public int papers;

    // Access the object with this readonly property
    public static YourScript Instance
    {
        get
        {
            // At the first call, create a new instance
            if (instance == null)
	        {
		        instance = new YourScript();
		    }
            return instance;
        }
    }

    // Make the constructor private so there cannot be a second instance
    private YourScript()
    {
	    // Do your initialisation here
    }
}

With such a class, you can easely access all fields and methods.
Just get the value with:

var a = YourScript.Instance.papers;

The advantage of this patern is, that you can have a constructor and initialize your fields and variables (a static class cannot have a constructor).

---

3)
This code is for the class that contains the value.

public static class YourScript
{
    public static int papers;
}

Then you can get the value with:

var a = YourScript.papers;

---

Note that you cannot add the script to a gameobject if you use possibility 2 and 3. They are only for the case that you need not multiple instances. If you want to add the script to a gameObject, you should use possibility 1.

If you want to contribute or correct something to this comment, then feel free to edit it.

Greetings
Chillersanim

[chillersanim]

Access the gameobject which contains the javascript object you want to use. Then get the script with GetComponent(type) and cast it to the correct type. Then just get the variable from the object.
Perhaps you should also check if the object is not null.

If you make your variable static, then you can directly access the variable with the class name (Class.papers).

I haven’t tested if you can access the javascript from c# but I don’t see a reason why that wouldn’t be possible…

Greetings
Chillersanim