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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<base href="../../../" />
<script src="list.js"></script>
<script src="page.js"></script>
<link type="text/css" rel="stylesheet" href="page.css" />
</head>
<body>
<h1>[name]</h1>
<p class="desc">
Object for keeping track of time. This uses [link:https://developer.mozilla.org/en-US/docs/Web/API/Performance/now performance.now]
if it is available, otherwise it reverts to the less accurate [link:https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Date/now Date.now].
</p>
<h2>Constructor</h2>
<h3>[name]( [param:Boolean autoStart] )</h3>
<p>
autoStart — (optional) whether to automatically start the clock. Default is true.
</p>
<h2>Properties</h2>
<h3>[property:Boolean autoStart]</h3>
<p>
If set, starts the clock automatically when the first update is called. Default is true.
</p>
<h3>[property:Float startTime]</h3>
<p>
Holds the time at which the clock's [page:Clock.start start] method was last called.
</p>
<h3>[property:Float oldTime]</h3>
<p>
Holds the time at which the clock's [page:Clock.start start], [page:Clock.getElapsedTime getElapsedTime] or [page:Clock.getDelta getDelta]
methods were last called.
</p>
<h3>[property:Float elapsedTime]</h3>
<p>
Keeps track of the total time that the clock has been running.
</p>
<h3>[property:Boolean running]</h3>
<p>
Whether the clock is running or not.
</p>
<h2>Methods</h2>
<h3>[method:null start]()</h3>
<p>
Starts clock. Also sets the [page:Clock.startTime startTime] and [page:Clock.oldTime oldTime]
to the current time, sets [page:Clock.elapsedTime elapsedTime] to *0* and [page:Clock.running running] to *true*.
</p>
<h3>[method:null stop]()</h3>
<p>
Stops clock and sets [page:Clock.oldTime oldTime] to the current time.
</p>
<h3>[method:Float getElapsedTime]()</h3>
<p>
Get the seconds passed since the clock started and sets [page:Clock.oldTime oldTime] to the current time.<br />
If [page:Clock.autoStart autoStart] is *true* and the clock is not running, also starts the clock.
</p>
<h3>[method:Float getDelta]()</h3>
<p>
Get the seconds passed since the time [page:Clock.oldTime oldTime] was set and sets [page:Clock.oldTime oldTime] to the current time.<br />
If [page:Clock.autoStart autoStart] is *true* and the clock is not running, also starts the clock.
</p>
<h2>Source</h2>
<p>
[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
</p>
</body>
</html>
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