import flash.media.SoundChannel;

var shadow:DropShadowFilter = new DropShadowFilter();
shadow.blurX=15
shadow.blurY=shadow.blurX

var bird:_bird=new _bird();
bird.x=spawnPoint.x;
bird.y=spawnPoint.y;
addChild(bird);
bird.filters=[shadow];

spawnPoint.visible=false;

//hides the mouse
Mouse.hide();
//input stuff;
stage.addEventListener(KeyboardEvent.KEY_DOWN, start);

function newBird(){
    var bird:_bird=new _bird();
    bird.x=spawnPoint.x;
    bird.y=spawnPoint.y;
    addChild(bird);
    bird.filters=[shadow];
}

function start(event):void{
    if (event.keyCode==32){
        startGame();
    }
}
function startGame():void{
    var canFlap:Boolean=true;
    var flap:_flap=new _flap();
    var mouseHidden:Boolean=true;
    var yVelocity:int=-30;
    var yVelocityCap:int=36;

    stage.removeEventListener(KeyboardEvent.KEY_DOWN, start);

    stage.addEventListener(Event.ENTER_FRAME, update);
    stage.addEventListener(KeyboardEvent.KEY_DOWN, handleKeyDown);
    stage.addEventListener(KeyboardEvent.KEY_UP, handleKeyUp);

    function update(event):void{
        bird.y+=yVelocity;
        //gravity
        if (yVelocity<yVelocityCap){
            yVelocity+=6;
        }
        //rotation
        if (bird.rotation < 100 && bird.rotation>-50 && yVelocity>0){
            bird.rotation+=yVelocity*0.7;
        }
        if (bird.rotation<100 && bird.rotation>-100 && yVelocity<0){
            bird.rotation+=yVelocity*2;
        }
        if (bird.rotation>=100){
            bird.rotation=99;
        }
        if (bird.rotation<-50){
            bird.rotation=-49;
        }
    }
    //flying
    function handleKeyDown(event):void{
        if (event.keyCode==32 && canFlap){
            canFlap=false;
            yVelocity=-30;
            bird.gotoAndPlay(1);
            playFlapSound();
        }
    }
    function handleKeyUp(event):void{
        if (event.keyCode==32){
            canFlap=true;
        }
    }
    function playFlapSound():void{
        var flapChannel:SoundChannel=flap.play();
    }
}