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  3. FParticleTrailsEmitterInstance_Base

FParticleTrailsEmitterInstance_Base

Unreal Engine C++ API Reference > Runtime > Engine

Inheritance Hierarchy

References

   
Module Engine
Header /Engine/Source/Runtime/Engine/Public/ParticleEmitterInstances.h
Include #include "ParticleEmitterInstances.h"

Syntax

struct FParticleTrailsEmitterInstance_Base : public FParticleEmitterInstance

Variables

  Type Name Description
Public variable uint32: 1 bDeadTrailsOnDeactivate If true, mark trails dead on deactivate
Public variable uint32: 1 bEnableInactiveTimeTracking If true, when the system checks for particles to kill, it will use elapsed gametime to make the determination.
Public variable uint32: 1 bFirstUpdate If true, this emitter has not been updated yet...
Public variable TArray< float > LastSpawnTime The last time a spawn happened for each trail in this emitter
Public variable float LastTickTime The last time the emitter instance was ticked
Public variable int32 MaxTrailCount The max number of trails this emitter is allowed to have
Public variable float RunningTime The running time for this instance w/ ActiveParticles > 0
Public variable TArray< float > SourceDistanceTraveled The distance traveled by each source of each trail in this emitter
Public variable TArray< float > TiledUDistanceTraveled The distance traveled by each source of each trail in this emitter
Public variable int32 TrailCount The number of active trails in this emitter
Public variable TArray< float > TrailSpawnTimes The Spawn times for each trail in this emitter
Public variable int32 TriangleCount The triangle count for this emitter
Public variable int32 VertexCount The vertex count for this emitter

Constructors

  Type Name Description
Public function   Constructor

Destructors

  Type Name Description
Public function Virtual   Destructor

Functions

  Type Name Description
Public function bool

AddParticleHelper ( int32 InTrailIdx,
int32 StartParticleIndex,
FTrailsBaseTypeDataPayload* StartTrailData,
int32 ParticleIndex,
FTrailsBaseTypeDataPayload* TrailData,
UParticleSystemComponent* InPsysComp
)

  
Public function void  
Public function bool

CheckForCircularTrail ( FBaseParticle* StartParticle,
FBaseParticle* CheckParticle
)

  
Public function void

CheckIndices ( int32 TrailIdx
)

  
Public function void

ClearIndices ( int32 TrailIndex,
int32 ParticleIndex
)

  
Public function void  
Protected function UMaterialInterface * Get the current material to render with.
Protected function bool

GetParticleInTrail ( bool bSkipStartingParticle,
FBaseParticle* InStartingFromParticle,
FTrailsBaseTypeDataPayload* InStartingTrailData,
EGetTrailDirection InGetDirection,
EGetTrailParticleOption InGetOption,
FBaseParticle*& OutParticle,
FTrailsBaseTypeDataPayload*& OutTrailData
)

 Retrieve the particle in the trail that meets the given criteria
Public function void

GetTrailEnd ( const int32 TrailIdx,
int32& OutEndIndex,
TrailDataType*& OutTrailData,
FBaseParticle*& OutParticle
)

  
Public function void

GetTrailStart ( const int32 TrailIdx,
int32& OutStartIndex,
TrailDataType*& OutTrailData,
FBaseParticle*& OutParticle
)

  
Public function Virtual void

KillParticles ( int32 InTrailIdx,
int32 InKillCount
)

 Kill the given number of particles from the end of the trail.
Protected function Virtual void Prints out info for all active particles.
Protected function Virtual void

PrintParticleData ( FBaseParticle* Particle,
FTrailsBaseTypeDataPayload* TrailData,
int32 CurrentIndex,
int32 TrailIndex
)

 Prints out info for a single particle.
Protected function Virtual void Traverses all trails and prints out debugging info.
Public function void

SetDeadIndex ( int32 TrailIndex,
int32 ParticleIndex
)

  
Public function void

SetEndIndex ( int32 TrailIndex,
int32 ParticleIndex
)

  
Public function void

SetStartIndex ( int32 TrailIndex,
int32 ParticleIndex
)

  
Public function Virtual void  
Public function Virtual void

Tick_RecalculateTangents ( float DeltaTime,
UParticleLODLevel* CurrentLODLevel
)

 Tick sub-function that handles recalculation of tangents
Public function Virtual void

UpdateSourceData ( float DeltaTime,
bool bFirstTime
)

  

Overridden from FParticleEmitterInstance

  Type Name Description
Public function Virtual void Force the bounding box to be updated.
Public function Virtual void

Init ()

 Initialize the instance
Public function Virtual void  
Public function Virtual void Kill off any dead particles. (Remove them from the active array)
Public function Virtual void Virtual void UpdateStartParticles(float DeltaTime, bool bFirstTime) {}
Public function Virtual void

Tick ( float DeltaTime,
bool bSuppressSpawning
)

 Tick the instance.
Public function Virtual void

UpdateBoundingBox ( float DeltaTime
)

 Update the bounding box for the emitter

Enums

  Type Name Description
Protected enum EGetTrailDirection    
Protected enum EGetTrailParticleOption    

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