CODEWITHSUNDEEP
c#unity-game-engine
James Logan
James Logan

Reputation: 41

I have a variable and when i increment it by 1 it stays at 0?

So some important things to let you guys know is this is in unity and this script is on a gameObject(the key). It casts a ray and then with hitinfo.transform.SendMessage("interactedWithItem"); this function below is called from another script. I can state that the Debug.Log("this is a key") is triggerd and shows in console, but for what ever reason the value of keyAmount isn't incremented. What am I doing wrong?

public int keyAmount;
public bool storableItem = true;
bool key = true;

//The function that will run if the storable item is set to true
public void interactedWithItem()
{

    //Checks if the object is a key
    if (key)
    {
        keyAmount++;
        Debug.Log("is a key");
    }

    gameObject.SetActive(false);
}

Upvotes: 2

Views: 699

Answers (1)

kara
kara

Reputation: 3455

I think your script is instanciated when it is called. Because of this your variables are reset. Try this example:

public class MyClass
{
    static void Main(string[] args)
    {
        MyClass myObject = new MyClass();
        myObject.Increase();
        myObject.Print(); // output: 1, 1

        myObject = new MyClass(); // new instance => only static variables are stored in the class and will not be dismissed.
        myObject.Increase();
        myObject.Print(); // output 1, 2
    }

    private int NotStaticItem = 0; // one per instance/object
    private static int StaticItem = 0; // one per class

    public void Increase()
    {
        NotStaticItem++;
        StaticItem++;
    }

    public void Print()
    {
        Console.WriteLine("NotStaticItem: {0}", NotStaticItem);
        Console.WriteLine("StaticItem: {0}", StaticItem);
    }
}

Build two KeyCounts. One static and one not-static. If the static value is not being reset you know, that unity builds new objects in this case.

Upvotes: 2

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