Discrete timer for simulations.

npm install sim-timer

Singleton constructor for Timer.

Returns either new instance or existing instance of Timer.

Advance time by 1 unit, and call appropriate intervals.

Returns the new time.

Add a new interval to the timer. Opposed the the default Javascript setInterval, this takes the delay first and then the callback.

delay time delay between calls. callback function to be called at appropriate tick. First argument passed is a counter of invokations for this interval ("local" time)

Returns id of the interval. This is used the clear the interval.

Removes the interval from the timer.

id of the interval

Returns Timer for chaining.