<!DOCTYPE html>
<html>
<head>
    <script src="https://cdn.rawgit.com/konvajs/konva/1.4.0/konva.min.js"></script>
    <meta charset="utf-8">
    <title>Konva Animate Position Demo</title>
    <style>
        body {
            margin: 0;
            padding: 0;
            overflow: hidden;
            background-color: #F0F0F0;
        }
    </style>
</head>
<body>
<div id="container"></div>
<script>
    var width = window.innerWidth;
    var height = window.innerHeight;
    var stage = new Konva.Stage({
        container: 'container',
        width: width,
        height: height
    });
    var layer = new Konva.Layer();
    var hexagon = new Konva.RegularPolygon({
        x: stage.getWidth() / 2,
        y: stage.getHeight() / 2,
        sides: 6,
        radius: 20,
        fill: 'red',
        stroke: 'black',
        strokeWidth: 4
    });
    layer.add(hexagon);
    stage.add(layer);
    var amplitude = 100;
    var period = 2000;
    // in ms
    var centerX = stage.getWidth() / 2;
    var anim = new Konva.Animation(function(frame) {
        hexagon.setX(amplitude * Math.sin(frame.time * 2 * Math.PI / period) + centerX);
    }, layer);
    anim.start();
</script>
</body>
</html>