quick and dirty hammer scrolling for GSAP Timeline

main.js

$('body').hammer();
$('body').on({
    'touchstart': function(e) {
        e.preventDefault();
    },
    'pan': function(e) {
    	console.log(e);
        if (e.gesture.deltaY > 2) {
            master.reverse();
        } else if (e.gesture.deltaY < -2) {
            master.play();
        }
    }
});