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- <h1>[name]</h1>
- <p class="desc">
- Object for keeping track of time. This uses <a href="https://developer.mozilla.org/en-US/docs/Web/API/Performance/now">performance.now()</a>
- if it is available, otherwise it reverts to the less accurate <a href="https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Date/now">Date.now()</a>.
- </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>
- [link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
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