Traffic light class specifically for DigitalTwins meshes. More...

#include <DigitalTwinsTrafficLight.h>

Inheritance diagram for ADigitalTwinsTrafficLight:

Public Member Functions
	ADigitalTwinsTrafficLight (const FObjectInitializer &ObjectInitializer)

virtual void	BeginPlay () override

Public Member Functions inherited from ATrafficLightBase
void	AddTimeToRecorder ()

	ATrafficLightBase (const FObjectInitializer &ObjectInitializer)

float	GetElapsedTime () const

float	GetGreenTime () const

TArray< ATrafficLightBase * >	GetGroupTrafficLights () const

int	GetPoleIndex () const

float	GetRedTime () const

bool	GetTimeIsFrozen () const

UTrafficLightComponent *	GetTrafficLightComponent ()

const UTrafficLightComponent *	GetTrafficLightComponent () const

ETrafficLightState	GetTrafficLightState () const

float	GetYellowTime () const

void	LightChangedCompatibility (ETrafficLightState NewLightState)

void	NotifyWheeledVehicle (ACarlaWheeledVehicle *Vehicle)

void	SetElapsedTime (float InElapsedTime)

void	SetGreenTime (float InGreenTime)

void	SetGroupTrafficLights (TArray< ATrafficLightBase * > InGroupTrafficLights)

void	SetPoleIndex (int InPoleIndex)

void	SetRedTime (float InRedTime)

void	SetTimeIsFrozen (bool InTimeIsFrozen)

void	SetTrafficLightState (ETrafficLightState State)

void	SetYellowTime (float InYellowTime)

void	UnNotifyWheeledVehicle (ACarlaWheeledVehicle *Vehicle)

Public Member Functions inherited from ATrafficSignBase
	ATrafficSignBase (const FObjectInitializer &ObjectInitializer)

int32	GetSpeedLimitKmh () const
	km/h this sign limits to, -1 when it is not a speed-limit sign.

ETrafficSignState	GetTrafficSignState () const

UBoxComponent *	GetTriggerVolume () const

TArray< UBoxComponent * >	GetTriggerVolumes () const

void	SetSpeedLimitKmh (int32 Kmh)
	Make this a speed-limit sign for Kmh: picks the dedicated state when one exists, the custom state (value kept in SpeedLimitKmh) otherwise.

void	SetTrafficSignState (ETrafficSignState State)

Private Member Functions
void	BuildLampMap ()
	Scan every "led_*" material slot of this actor's meshes and sort the lamps into states.

FLinearColor	GetColorForState (ETrafficLightState State) const
	Get the emissive color for a given traffic light state.

void	OnLightStateChanged ()

void	UpdateDigitalTwinsMaterials (ETrafficLightState State)
	Update material parameters for DigitalTwins meshes based on traffic light state.

Private Attributes
int32	CachedMeshComponentCount = 0
	Mesh component count the lamp map was built from.

TArray< UMaterialInstanceDynamic * >	DarkMaterials
	Lamps that belong to no state – the stateless atlas glyphs (Tram, tram lines, Circle, Triangle) and anything unclassifiable.

TMap< UMaterialInstanceDynamic *, ETrafficLightState >	MaterialToLightType
	Every lamp this actor drives, and the state it belongs to.

Additional Inherited Members
Public Attributes inherited from ATrafficSignBase
bool	bGeneratedFromOpenDRIVE = false
	True for signs/lights generated from the OpenDRIVE map.

bool	bPositioned = false
	True once this sign has been snapped to the ground, to avoid adjusting it more than once.

Protected Member Functions inherited from ATrafficLightBase
void	OnTrafficLightStateChanged (ETrafficLightState TrafficLightState)

Detailed Description

Traffic light class specifically for DigitalTwins meshes.

Implements visual material updates for DigitalTwins atlas system.

Definition at line 18 of file DigitalTwinsTrafficLight.h.

Constructor & Destructor Documentation

◆ ADigitalTwinsTrafficLight()

ADigitalTwinsTrafficLight::ADigitalTwinsTrafficLight ( const FObjectInitializer & ObjectInitializer )

Definition at line 84 of file DigitalTwinsTrafficLight.cpp.

Member Function Documentation

◆ BeginPlay()

void ADigitalTwinsTrafficLight::BeginPlay ( )

overridevirtual

Definition at line 89 of file DigitalTwinsTrafficLight.cpp.

References ATrafficLightBase::GetTrafficLightComponent(), OnLightStateChanged(), and UpdateDigitalTwinsMaterials().

◆ BuildLampMap()

void ADigitalTwinsTrafficLight::BuildLampMap ( )

private

Scan every "led_*" material slot of this actor's meshes and sort the lamps into states.

Called lazily from UpdateDigitalTwinsMaterials, and again whenever the actor's mesh component count changes (UMapLogicParser re-parents the baked rig's meshes onto us).

Definition at line 116 of file DigitalTwinsTrafficLight.cpp.

References CachedMeshComponentCount, DarkMaterials, ATrafficLightBase::GetTrafficLightComponent(), MaterialToLightType, and State.

Referenced by UpdateDigitalTwinsMaterials().

◆ GetColorForState()

FLinearColor ADigitalTwinsTrafficLight::GetColorForState ( ETrafficLightState State ) const

private

Get the emissive color for a given traffic light state.

Definition at line 299 of file DigitalTwinsTrafficLight.cpp.

References State.

◆ OnLightStateChanged()

void ADigitalTwinsTrafficLight::OnLightStateChanged ( )

private

Definition at line 106 of file DigitalTwinsTrafficLight.cpp.

References ATrafficLightBase::GetTrafficLightComponent(), and UpdateDigitalTwinsMaterials().

Referenced by BeginPlay().

◆ UpdateDigitalTwinsMaterials()

void ADigitalTwinsTrafficLight::UpdateDigitalTwinsMaterials ( ETrafficLightState State )

private

Update material parameters for DigitalTwins meshes based on traffic light state.

Definition at line 276 of file DigitalTwinsTrafficLight.cpp.

References BuildLampMap(), CachedMeshComponentCount, MaterialToLightType, and State.

Referenced by BeginPlay(), and OnLightStateChanged().

Member Data Documentation

◆ CachedMeshComponentCount

int32 ADigitalTwinsTrafficLight::CachedMeshComponentCount = 0

private

Mesh component count the lamp map was built from.

Definition at line 55 of file DigitalTwinsTrafficLight.h.

Referenced by BuildLampMap(), and UpdateDigitalTwinsMaterials().

◆ DarkMaterials

TArray<UMaterialInstanceDynamic*> ADigitalTwinsTrafficLight::DarkMaterials

private

Lamps that belong to no state – the stateless atlas glyphs (Tram, tram lines, Circle, Triangle) and anything unclassifiable.

Baked lit at intensity 50000, so they are switched off once and never touched again.

Definition at line 52 of file DigitalTwinsTrafficLight.h.

Referenced by BuildLampMap().

◆ MaterialToLightType

TMap<UMaterialInstanceDynamic*, ETrafficLightState> ADigitalTwinsTrafficLight::MaterialToLightType

private

Every lamp this actor drives, and the state it belongs to.

A rig may carry any number of lamps per state (a mast arm repeats the three aspects on each head, a combi head adds arrow aspects), so this is not limited to three entries.

Definition at line 47 of file DigitalTwinsTrafficLight.h.

Referenced by BuildLampMap(), and UpdateDigitalTwinsMaterials().

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

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ADigitalTwinsTrafficLight()

Member Function Documentation

◆ BeginPlay()

◆ BuildLampMap()

◆ GetColorForState()

◆ OnLightStateChanged()

◆ UpdateDigitalTwinsMaterials()

Member Data Documentation

◆ CachedMeshComponentCount

◆ DarkMaterials

◆ MaterialToLightType