Moving running cycle in AS3 - actionscript-3

Question

I want to make a moving character that runs a movie clip when a keyboard arrow is pressed.For example:
When no arrows are pressed I want the character not to move when any keyboard arrows are pressed and run a movie clip animation where the character runs when the right arrow is pressed and same with the left arrow.
var upPressed:Boolean = false;
var downPressed:Boolean = false;
var leftPressed:Boolean = false;
var rightPressed:Boolean = false;
movieClip_1.addEventListener(Event.ENTER_FRAME,fl_MoveInDirectionOfKey);
stage.addEventListener(KeyboardEvent.KEY_DOWN, fl_SetKeyPressed);
stage.addEventListener(KeyboardEvent.KEY_UP, fl_UnsetKeyPressed);
function fl_MoveInDirectionOfKey(event:Event)
{
if (upPressed)
{
movieClip_1.y -= 5;
}
if (downPressed)
{
movieClip_1.y += 5;
}
if (leftPressed)
{
movieClip_1.x -= 5;
}
if (rightPressed)
{
movieClip_1.x += 5;
}
}
function fl_SetKeyPressed(event:KeyboardEvent):void
{
switch (event.keyCode)
{
case Keyboard.UP:
{
upPressed = true;
break;
}
case Keyboard.DOWN:
{
downPressed = true;
break;
}
case Keyboard.LEFT:
{
leftPressed = true;
break;
}
case Keyboard.RIGHT:
{
rightPressed = true;
break;
}
}
}
function fl_UnsetKeyPressed(event:KeyboardEvent):void
{
switch (event.keyCode)
{
case Keyboard.UP:
{
upPressed = false;
break;
}
case Keyboard.DOWN:
{
downPressed = false;
break;
}
case Keyboard.LEFT:
{
leftPressed = false;
break;
}
case Keyboard.RIGHT:
{
rightPressed = false;
break;
}
}
}
My movie clips are: run_right and run_left.
My timeline:

Answer 1

Create a MovieClip called "movieClip_1".
var movieClip_1= new MovieClip_1();
Inside this MovieClip, add "run_right" animation on the first frame and "run_left" on the second frame.
I mean, add new MovieClips that contains your animations.
Then, go to fl_MoveInDirectionOfKey function and write this:
if (rightPressed)
{
movieClip_1.gotoAndStop(1);
}
else if (leftPressed)
{
movieClip_1.gotoAndStop(2);
}
else
{
// no animation
// movieClip_1.gotoAndStop(3); idle animation could be on frame 3
}

Answer 2

here is your Mistake
movieClip_1.addEventListener(Event.ENTER_FRAME,fl_MoveInDirectionOfKey);
------------
remove
movieClip_1.
it should be like this
stage.addEventListener(Event.ENTER_FRAME,fl_MoveInDirectionOfKey);

Answer 3

This is second solution, answer ( the Event.Enter_Frame ) is inside movieClip so you need to add (root.) before MovieClip
change it like this
if (upPressed)
{
root.movieClip_1.y -= 5;
}
if (downPressed)
{
root.movieClip_1.y += 5;
}
if (leftPressed)
{
root.movieClip_1.x -= 5;
}
if (rightPressed)
{
root.movieClip_1.x += 5;
}