s2 = GameObject.FindObjectOfType();
s2.DoSomething (myint);
My class is “s2” so I’m sending myint to that class function, so that’s not problem, but what if I want to return a variable? For example, let’s say I am sending a “score” variable and I want another classes function to change the score then send it back to the original function.
I’m coming from Adobe Director where I Can just set a global variable and be done with it, but this is clearly a little more taxing!
When ur setting void as the return type of the function, you’re specifying that the function doesn’t return a value. If you want it to return an int, give it a return type of int.
public int DoSomething (int score)
{
//do fancy things with score
return score;
}
If the method you’re sending to is what you want to return the variable, it’s the same as any method in C# programming.
Say, for instance, ‘DoSomething’ was written like this:
int DoSomething(int myint) {
int b = myint + 2;
return b;
}
Then, with your ‘s2’ … you could do:
int returnedInt = s2.DoSomething(myint);
Hope that helps 
And for something more advanced, if you wanted to return multiple objects, you have 2 options:
or
public bool DoSomething(int score, out int newScore, ref int highScore)
{
newScore = score + 10;
highScore = Mathf.Max(highScore, newScore);
return true;
}
EDIT: Was too clever for my own good. Fixed to change highScore to “ref” instead of “out”, which means it’s used as both input and output.
Very good tip – you forgot to ensure the path returns ‘bool’ though 
heh.
Fixed!
Cool heh