mirror of
https://github.com/tweenjs/tween.js.git
synced 2025-12-08 20:16:12 +00:00
70 lines
1.9 KiB
HTML
70 lines
1.9 KiB
HTML
<!DOCTYPE html>
|
|
<html lang="en">
|
|
<head>
|
|
<title>Tween.js / hello world!</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>00 _ hello world</h2>
|
|
<p>Simple example for illustrating the creation and chaining of tweens.</p>
|
|
</div>
|
|
<div
|
|
id="target"
|
|
style="position:absolute; top: 100px; left: 100px; width: 100px; height: 100px; background: #a0dde9; padding: 1em;"
|
|
>
|
|
hello world!
|
|
</div>
|
|
|
|
<script src="../dist/tween.umd.js"></script>
|
|
<script src="js/RequestAnimationFrame.js"></script>
|
|
<script>
|
|
var position
|
|
var target
|
|
var tween, tweenBack
|
|
|
|
init()
|
|
animate()
|
|
|
|
function init() {
|
|
position = {x: 100, y: 100, rotation: 0}
|
|
target = document.getElementById('target')
|
|
tween = new TWEEN.Tween(position)
|
|
.to({x: 700, y: 200, rotation: 359}, 2000)
|
|
.delay(1000)
|
|
.easing(TWEEN.Easing.Elastic.InOut)
|
|
.onUpdate(update)
|
|
|
|
tweenBack = new TWEEN.Tween(position)
|
|
.to({x: 100, y: 100, rotation: 0}, 3000)
|
|
.easing(TWEEN.Easing.Elastic.InOut)
|
|
.onUpdate(update)
|
|
|
|
tween.chain(tweenBack)
|
|
tweenBack.chain(tween)
|
|
|
|
tween.start()
|
|
}
|
|
|
|
//If we register the callback animate, but the TWEEN.update(time) returns false,
|
|
//cancel/unregister the handler
|
|
function animate(time) {
|
|
var id = requestAnimationFrame(animate)
|
|
|
|
var result = TWEEN.update(time)
|
|
|
|
if (!result) cancelAnimationFrame(id)
|
|
}
|
|
|
|
function update() {
|
|
target.style.left = position.x + 'px'
|
|
target.style.top = position.y + 'px'
|
|
target.style.webkitTransform = 'rotate(' + Math.floor(position.rotation) + 'deg)'
|
|
target.style.MozTransform = 'rotate(' + Math.floor(position.rotation) + 'deg)'
|
|
}
|
|
</script>
|
|
</body>
|
|
</html>
|