stop();
var isRight:Boolean=false;
var isLeft:Boolean=false;
var isUp:Boolean=false;
var isDown:Boolean=false;

var ycoordinate:Number = 0;
var gravity:Number = 0.5;
var speed:Number = 0.0;

function downKey(event:KeyboardEvent){
    if(event.keyCode==39){
        isRight=true;
    }
    if(event.keyCode==37){
        isLeft=true;
        }
    if(event.keyCode==38){
        isUp=true;
        }
    if(event.keyCode==40){
        isDown=true;
        }
}


function upKey(event:KeyboardEvent){
 if(event.keyCode==39){
    isRight=false;}
 if(event.keyCode==37){
    isLeft=false;}
 if(event.keyCode==38){
    isUp=false;}
 if(event.keyCode==40){
    isDown=false;}
}

function myLoop(Event){
    if(isRight && (mc1.x < 550)){
        mc1.x+=5;
    }
    if(isLeft && mc1.x>0){
        mc1.x-=5;
    }
    if(isUp && mc1.y>0){
        mc1.y-=5;
    }
    if(isDown && mc1.y<400){
        mc1.y+=5;
    }
    ycoordinate += speed;
    speed +=gravity;
    mc1.y = int(ycoordinate);


    if (mc1.y == 400) {
        speed = 0
    }
}



stage.addEventListener(KeyboardEvent.KEY_DOWN, downKey);
stage.addEventListener(KeyboardEvent.KEY_UP, upKey);
stage.addEventListener(Event.ENTER_FRAME, myLoop);