Connect the timer to the given document.Calling this method is not mandatory to use the timer but enables the usage of the Page Visibility API to avoid large time delta values.
The document.
Disconnects the timer from the DOM and also disables the usage of the Page Visibility API.
Can be used to free all internal resources. Usually called when the timer instance isn't required anymore.
Returns the time delta in seconds.
The time delta in second.
Returns the elapsed time in seconds.
The elapsed time in second.
Returns the timescale.
The timescale.
Resets the time computation for the current simulation step.
A reference to this timer.
Sets the given timescale which scale the time delta computation
in update().
The timescale to set.
A reference to this timer.
Updates the internal state of the timer. This method should be called
once per simulation step and before you perform queries against the timer
(e.g. via getDelta()).
Optionaltimestamp: numberThe current time in milliseconds. Can be obtained
from the requestAnimationFrame callback argument. If not provided, the current
time will be determined with performance.now.
A reference to this timer.
This class is an alternative to Clock with a different API design and behavior. The goal is to avoid the conceptual flaws that became apparent in
Clockover time.Timerhas anupdate()method that updates its internal state. That makes it possible to callgetDelta()andgetElapsed()multiple times per simulation step without getting different values.