[Revisi] Simple Game Bola - Android

import flash.display.DisplayObject;
import flash.display.MovieClip;
import flash.events.Event;
import flash.events.MouseEvent;

panahAtas_mc.addEventListener(MouseEvent.MOUSE_DOWN, onMouseDown);
panahKiri_mc.addEventListener(MouseEvent.MOUSE_DOWN, onMouseDown);
panahKanan_mc.addEventListener(MouseEvent.MOUSE_DOWN, onMouseDown);
stage.addEventListener(MouseEvent.MOUSE_UP, onMouseUp);

const ATAS:int = 1;
const KANAN:int = 2;
const KIRI:int = 3;
var arahGerak:int;

function onMouseUp(e:MouseEvent):void {
    if (stage.hasEventListener(Event.ENTER_FRAME)) {
        stage.removeEventListener(Event.ENTER_FRAME, onEnterFrame);
    }
}
function onMouseDown(e:MouseEvent):void {
    trace("(e.currentTarget as DisplayObject).name : " + (e.currentTarget as DisplayObject).name);
    switch((e.currentTarget as DisplayObject).name) {
        case "panahAtas_mc"   : arahGerak = ATAS; trace("ATAS"); break;
        case "panahKanan_mc"  : arahGerak = KANAN; trace("KANAN"); break;
        case "panahKiri_mc"   : arahGerak = KIRI; trace("KIRI"); break;
    }
    if (!stage.hasEventListener(Event.ENTER_FRAME)) {
        stage.addEventListener(Event.ENTER_FRAME, onEnterFrame)
    }
}
function onEnterFrame(e:Event):void {
    switch(arahGerak) {
        case ATAS   : bola_mc.y -= 10; break;
        case KANAN  : bola_mc.x += 10; break;
        case KIRI   : bola_mc.x -= 10; break;
    }
}