av');
    let move=new Audio('move1.mp3');
    document.addEventListener('keydown',keydown);
    document.addEventListener("keyup",keyup);
    startscreen.addEventListener('click',start);
    let keys={
        ArrowUp:false,ArrowDown:false,ArrowLeft:false,ArrowRight:false
    };
    let player={};
    let strip={};
    function start()
    { player.start=true;
        music.play();
        gamearea.classList.remove('hide');
        startscreen.classList.add('hide');
        score.classList.r