plEventTrack Class Reference

An event track is a time line that contains named events. More...

#include <EventTrack.h>

Public Member Functions
void	Clear ()
	Removes all control points.
bool	IsEmpty () const
	Checks whether there are any control points in the track.
void	AddControlPoint (plTime time, plStringView sEvent)
	Adds a named event into the track at the given time.
void	Sample (plTime rangeStart, plTime rangeEnd, plDynamicArray< plHashedString > &out_events) const
	Samples the event track from range [start; end) and adds all events that occured in that time period to the array.
void	Save (plStreamWriter &inout_stream) const
void	Load (plStreamReader &inout_stream)

Detailed Description

An event track is a time line that contains named events.

The time line can be sampled to query all events that occurred during a time period. There is no way to sample an event track at a fixed point in time, because events occur at specific time points and thus only range queries make sense.

Member Function Documentation

Sample()

void plEventTrack::Sample	(	plTime	rangeStart,
		plTime	rangeEnd,
		plDynamicArray< plHashedString > &	out_events ) const

Samples the event track from range [start; end) and adds all events that occured in that time period to the array.

Note that the range is inclusive for the start time, and exclusive for the end time.

If rangeStart is larger than rangeEnd, the events are returned in reverse order (backwards traversal).

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The documentation for this class was generated from the following files:

• Code/Engine/Foundation/Tracks/EventTrack.h
• Code/Engine/Foundation/Tracks/Implementation/EventTrack.cpp