EventTrack.h

#pragma once
 
#include <Foundation/Basics.h>
#include <Foundation/Containers/DynamicArray.h>
#include <Foundation/Containers/HybridArray.h>
#include <Foundation/Strings/HashedString.h>
#include <Foundation/Time/Time.h>
 
class PL_FOUNDATION_DLL plEventTrack
{
public:
  plEventTrack();
  ~plEventTrack();
 
  void Clear();
 
  bool IsEmpty() const;
 
  void AddControlPoint(plTime time, plStringView sEvent);
 
  void Sample(plTime rangeStart, plTime rangeEnd, plDynamicArray<plHashedString>& out_events) const;
 
  void Save(plStreamWriter& inout_stream) const;
  void Load(plStreamReader& inout_stream);
 
private:
  struct ControlPoint
  {
    PL_ALWAYS_INLINE bool operator<(const ControlPoint& rhs) const { return m_Time < rhs.m_Time; }
 
    plTime m_Time;
    plUInt32 m_uiEvent;
  };
 
  plUInt32 FindControlPointAfter(plTime x) const;
  plInt32 FindControlPointBefore(plTime x) const;
 
  mutable bool m_bSort = false;
  mutable plDynamicArray<ControlPoint> m_ControlPoints;
  plHybridArray<plHashedString, 4> m_Events;
};