onClipEvent (load) {

moveSpeed = 15; 

} 

onClipEvent (enterFrame) { 

if (Key.isDown(Key.RIGHT)) { 

this._x += moveSpeed; 

} else if (Key.isDown(Key.UP)) { 

 this._y -= moveSpeed; 

} else if (Key.isDown(Key.DOWN)) { 

this._y += moveSpeed; 

} else if (Key.isDown(Key.LEFT)) { 

this._x -= moveSpeed; 

} 

if (hitTest(_root.left_wall) == true) {
	this._x += moveSpeed;
}
if (hitTest(_root.right_wall) == true) {
	this._x -= moveSpeed;
}
if (hitTest(_root.top_wall) == true) {
	this._y += moveSpeed;
}
if (hitTest(_root.bottom_wall) == true) {
	this._y -= moveSpeed;
}

}