issues passing a value form one script to another

Questions & Answers
1

Having problems passing a value from one script to another.
Here is my script.

I want to pass the currentvalue from my second script to my first script but it’s not working, I know i’m doing a simple mistake but its starting to frustration me now.

//first script
var currentlevel : int = 0;
    
function Update (){
    var currentlevel = SwipeControl.currentValue;
}

//second script values i want to get. the name of this script is SwipeControl    
public static var currentValue : int = 0; // current value
2

Would it be that you are creating twice the same variable. Once as global and once in the update function?

3

You need to look at the scope principle. To put it simple, when you create a variable after a “{”, it will die when comes the matching “}”.

When you create a global variable (not static, global this is important too), it lives the scope of the script. Your var currentLevel as it is now, is created as global and then a new one is created again and dies each frame and the compiler recreates a new one right after but even though it has the same name it is a total different one at a different memory location (I think you would get an error with this using VS and C or C++).

Now, it is different for the functions, they are implemented outside the update but use inside so they can access any variables alive at the time of calling.

Now try this way:

var currentlevel;

function Update (){
    currentlevel = SwipeControl.currentValue; // here I took var on the front
    Debug.Log(currentlevel);
}

function OnMouseDown () {
Debug.Log("mouse enter");
    if (currentlevel == 0){
       Debug.Log("Loading Level");
       Application.LoadLevel(1);

    }

    else {

    if (currentlevel == 1){
       Application.LoadLevel(2);
       }
    }
}