examples/02_black_and_red.html

<!doctype html>
<html lang="en">
	<head>
		<title>Tween.js / Black and Red</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>02 _ Black and red</h2>
			<p>4096 continuously changing color cells (in a 64x64 table)</p>
			<p></p>
		</div>
		<div id="target"></div>

		<style>
			body {
				font-family: Arial, Helvetica, sans;
			}
			table {
				border-collapse: collapse;
			}
			td {
				width: 5px;
				height: 5px;
			}
			#target {
				position: absolute;
				top: 4em;
				right: 3em;
			}
		</style>

		<script src="js/stats.min.js"></script>

		<script type="module">
			import * as TWEEN from '../dist/tween.esm.js'

			const group = new TWEEN.Group()

			const target = document.getElementById('target')
			const stats = new Stats()
			target.appendChild(stats.domElement)

			const t = document.createElement('table')
			let index = 0

			for (let i = 0; i < 64; i++) {
				const tr = t.insertRow(-1)
				for (let j = 0; j < 64; j++) {
					const td = tr.insertCell(-1)
					td.style.background = '#000'
					const x = (i + j) * 0.1
					const cell = {td: td, value: 0}
					const tween = new TWEEN.Tween(cell)
						.to({value: 1}, 8000)
						.delay((0.001 * index + Math.random()) * 500)
						.easing(TWEEN.Easing.Elastic.InOut)
						.onUpdate(function (object) {
							const c = Math.floor(object.value * 0xff)
							object.td.style.background = 'rgb(' + c + ', 0, 0)'
						})

					const tweenBack = new TWEEN.Tween(cell)
						.to({value: 0}, 4000)
						.delay((0.001 * index + Math.random()) * 500)
						.easing(TWEEN.Easing.Elastic.InOut)
						.onUpdate(function (object) {
							const c = Math.floor(object.value * 0xff)
							object.td.style.background = 'rgb(' + c + ', 0, 0)'
						})

					tween.chain(tweenBack)
					tweenBack.chain(tween)

					group.add(tween, tweenBack)

					tween.start()
					index++
				}
			}

			target.appendChild(t)

			animate()

			function animate(time) {
				requestAnimationFrame(animate)

				group.update(time)
				stats.update()
			}
		</script>
	</body>
</html>