Can anybody help me please for gaming stuff

1

I have made two movie clip - 1) char1_mc 2) char2_mc

char1_mc is having right side view, that means it walks on right side
char2_mc is having left side view, which moves or walks on left side

If I would be having one single movie clip then i would have able to move it with the code

var keyListener:Object = new Object();
keyListener.onKeyDown = function() {
if (Key.isDown(Key.LEFT)) {
char1._x -= 10;
}
if (Key.isDown(Key.RIGHT)) {
char1._x += 10;
}
};
Key.addListener(keyListener);

But my question is

  1. If I press right key, i should be able to move my char1_mc to right direction
  2. If I press left key, i should be able to move my char2_mc to left direction
  3. only one movie clip should be visible at one time like if I press right key only char1_mc should be visible on the stage and if I press left key only char2_mc should be visible.

If you can guide me for this ,
I will be very thankfull to you