how to use the text box to change a frame in AS3

Question

So I am making a little game. Numbers count up and when they reach another number i want then to change the frame. E.G. the numbers start counting and when they reach say 10 it will change to frame 20. BTW this is in action-script 3

Answer 1

In your document class, create a setter function that will go to the frame when a certain condition is met.

private var _counter:uint = 0;

public function get counter ():uint
{
    return _counter;
}

public function set counter (value:uint):void
{
    if (value == _counter) return;

    _counter = value;
    if(_counter == 10) gotoAndStop(20); 
}

Now simply use counter as if it was a real variable:

counter += 5;
trace(counter);
counter = 10;

Just to be clear: you should not have the counter variable in the text field only. The Textfield is just a way to display it. You should always have a real number variable, because the TextField is made for Strings, not numbers. If you want to display the counter variable in a TextField, do this in the set function as well:

public function set counter (value:uint):void
{
    if (value == _counter) return;

    _counter = value;

    textField.text = _counter.toString(); //display counter in text

    if(_counter == 10) gotoAndStop(20); 
}

Answer 2

var counter:int = parseInt(yourTextField.text);
if(counter == 10)
{
   gotoAndStop(20);
}

Please note above code should be inside either an ENTER_FRAME event or TEXTField CHANGE event. Ideally through textfield events.