AulaFlash03Sep2012

import flash.events.Event;

var bala:Bala = new Bala();
var balas:Array = new Array();

addEventListener(Event.ENTER_FRAME,loop);
    function loop(evt:Event):void{
        quadrado.y += 10;

        for (var i:int = 0; i<balas.length; i++){
            balas[i].y -= 10;
        }
        if (balas[i].hitTestObject(quadrado)){
            trace("EXPLODE!");
        }

        if (nave.hitTestObject(quadrado)){
            trace("COLIDIU!");
        }

        if (quadrado.y > stage.stageHeight){
            quadrado.y = 0;
            quadrado.x = Math.random() * stage.stageWidth;//sorteio em x
        }
    }

stage.addEventListener(KeyboardEvent.KEY_DOWN,teclado);
    function teclado(evt:KeyboardEvent):void{
        switch (evt.keyCode){
        case Keyboard.LEFT :
            nave.x -= 20;
        break;
        case Keyboard.UP :
            nave.y -= 20;
        break;
        case Keyboard.DOWN :
            nave.y += 20;
        break;
        case Keyboard.RIGHT :
            nave.x += 20;
        break;
        case Keyboard.SPACE :
            bala = new Bala();
            bala.x = nave.x;
            bala.y = nave.y;
            addChild(bala);
            balas.push(bala);
        break;
        }
    }