Animate CC advances to the next frame with gotoAndStop commented out? - actionscript-3

Question

I'm writing this code that tests your reaction time and then advances to the next frame. It shows a box and then time the difference between when the box appeared and when the use presses [A]. Heer is my code
import flash.utils.Timer;
import flash.events.Event;
import flash.utils.getTimer;
stop();
var canPress = false;
var startClock:Timer = new Timer(4000+Math.random()*6000, 1);
grbox.y = -500;
startClock.start();
var startTime:int = 0;
function displayBox(evt:Event):void{
canPress = true;
grbox.y = 143;
var startTime:int = getTimer();
}
function Tpressed(e:KeyboardEvent):void
{
if(e.keyCode==Keyboard.A){
if(canPress==true){
var endTime:int = getTimer();
score1 = endTime-startTime;
if(score2<0){
//gotoAndStop(3);
}
else{
//gotoAndStop(4);
}
}
}
}
stage.addEventListener(KeyboardEvent.KEY_DOWN, Tpressed);
startClock.addEventListener(TimerEvent.TIMER, displayBox);
For some reason if I just spam the [A] button it will advance to the next frame. Why is this happening?!?! My 'gotoAndStop(4);' command is commented out so it should do anything, yet it is.
EDIT: Here is my .fla file: https://drive.google.com/open?id=0BxtLreFIVnSWR2VPSGdSaHZGaVk
RAW CODE: https://docs.google.com/document/d/1GRZIaKAdRNu3z3aPjjXNcgqMl2BhR-ZBT6gU7OeSbWQ/edit?usp=sharing

Answer 1

On one of your frames you added an event listener for key presses to the stage. That's probably where your problem is at. So when you press any key, it calls the pressed function as well as the Tpressed function. And since the key that is being checked for in each function is "A", both functions execute their if blocks. And both if blocks call a gotoAndStop method.
Without knowing exactly what you are trying to accomplish in the big picture, this problem could be fixed by removing the event listener for the pressed function when you leave that frame.
Could look like:
function pressed(e:KeyboardEvent):void
{
if(e.keyCode==Keyboard.A){
gotoAndStop(Math.round(Math.random()+2));
// remove the event listener since we are leaving this frame and you apparently only want this function to work on this frame
stage.removeEventListener(KeyboardEvent.KEY_DOWN, pressed);
}
}