examples/08_repeat.html

<!doctype html>
<html lang="en">
	<head>
		<title>Tween.js / repeat</title>
		<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
		<link href="css/style.css" media="screen" rel="stylesheet" type="text/css" />
	</head>
	<body>
		<div id="info">
			<h1><a href="http://github.com/tweenjs/tween.js">tween.js</a></h1>
			<h2>08 _ repeat</h2>
			<p>Demonstrating the repeat() feature.</p>
		</div>
		<div style="position: absolute; top: 100px; left: 400px">
			<div id="target1" data-rotation="0" class="box">no repeat</div>
			<div id="target2" data-rotation="0" class="box">repeat twice</div>
			<div id="target3" data-rotation="0" class="box">repeat forever</div>
		</div>

		<script type="module">
			import {Tween, Group, Easing} from '../dist/tween.esm.js'

			const group = new Group()

			init()
			animate()

			function init() {
				const target1 = document.getElementById('target1'),
					tween1 = new Tween(target1.dataset)
						.to({rotation: 360}, 1000)
						.easing(Easing.Exponential.InOut)
						.delay(100)
						.onUpdate(function (object) {
							updateBox(target1, object)
						})
						.start(),
					target2 = document.getElementById('target2'),
					tween2 = new Tween(target2.dataset)
						.to({rotation: 360}, 1000)
						.easing(Easing.Exponential.InOut)
						.repeat(2)
						.delay(100)
						.onUpdate(function (object) {
							updateBox(target2, object)
						})
						.start(),
					target3 = document.getElementById('target3'),
					tween3 = new Tween(target3.dataset)
						.to({rotation: 360}, 1000)
						.easing(Easing.Exponential.InOut)
						.repeat(Infinity)
						.delay(100)
						.onUpdate(function (object) {
							updateBox(target3, object)
						})
						.start()

				group.add(tween1, tween2, tween3)
			}

			function animate(time) {
				requestAnimationFrame(animate)

				group.update(time)
			}

			function updateBox(box, params) {
				const s = box.style,
					transform = 'rotate(' + Math.floor(params.rotation) + 'deg)'
				s.webkitTransform = transform
				s.mozTransform = transform
				s.transform = transform
			}
		</script>

		<style type="text/css">
			.box {
				width: 100px;
				height: 100px;
				margin: 10px;
				padding: 10px;
				display: inline-block;
				float: left;
			}
			#target1 {
				background: #fcc;
			}
			#target2 {
				background: #cfc;
			}
			#target3 {
				background: #ccf;
			}
		</style>
	</body>
</html>