Quick code fix needed, probably real simple

1

Right basically I have a character and a background. The background scrolls as you press left or right on keyboard to create the illusion of movement.

I want the character to flip when you change from holding down left to right and vice versa, but when I do the following code it doubles the size of the character once and then it stays. It flips fine but in the transformed fat size. Any ideas?

Here’s the code:

var mySpeed:Number = 10;

function keyIsDown(evt:KeyboardEvent):void{
    
    if(evt.keyCode==Keyboard.RIGHT){
        walkingPlane_mc.x+=mySpeed;
        greyCharacter_mc.scaleX=-1;
    }
    
    if(evt.keyCode==Keyboard.LEFT){
        walkingPlane_mc.x-=mySpeed;
        greyCharacter_mc.scaleX=+1;
    }
}

stage.addEventListener(KeyboardEvent.KEY_DOWN, keyIsDown);