#include <CarlaLightSubsystem.h>

Inheritance diagram for UCarlaLightSubsystem:

Public Member Functions
void	Deinitialize () override

bool	GetDayNightCycle () const

bool	GetDayTimeState (bool &bOutIsDay) const
	The day/night state last broadcast, if any.

UCarlaLight *	GetLight (int Id)

TMap< int, UCarlaLight * > &	GetLights ()

std::vector< carla::rpc::LightState >	GetLights (FString Client)

void	Initialize (FSubsystemCollectionBase &Collection) override

bool	IsUpdatePending () const

void	NotifyDayTimeChange (bool bIsDay)
	Broadcast a day/night change and then re-apply the UE4->UE5 component intensity conversion on every registered light.

int32	NumLights () const

void	RegisterLight (UCarlaLight *CarlaLight)

void	SetClientStatesdirty (FString ClientThatUpdate)
	Flag every registered client (except ClientThatUpdate) so their LightManager re-queries light states.

void	SetDayNightCycle (const bool active)

void	SetLights (FString Client, std::vector< carla::rpc::LightState > LightsToSet, bool DiscardClient=false)

void	UnregisterLight (UCarlaLight *CarlaLight)

Public Attributes
FDayTimeChanged	DayTimeChangeEvent

Private Member Functions
void	ScheduleDayTimeState (UCarlaLight *CarlaLight)

Private Attributes
bool	bDayNightCycle = true

bool	bHasDayTimeState = false

bool	bLastIsDay = true

TMap< FString, bool >	ClientStates

TMap< int, UCarlaLight * >	Lights

TSet< TWeakObjectPtr< UCarlaLight > >	PendingDayTimeLights

Detailed Description

Definition at line 32 of file CarlaLightSubsystem.h.

Member Function Documentation

◆ Deinitialize()

void UCarlaLightSubsystem::Deinitialize ( )

override

Definition at line 22 of file CarlaLightSubsystem.cpp.

◆ GetDayNightCycle()

bool UCarlaLightSubsystem::GetDayNightCycle ( ) const

inline

Definition at line 73 of file CarlaLightSubsystem.h.

Referenced by FFrameData::AddWorldState(), and FFrameData::PlayWorldState().

◆ GetDayTimeState()

bool UCarlaLightSubsystem::GetDayTimeState ( bool & bOutIsDay ) const

inline

The day/night state last broadcast, if any.

Definition at line 79 of file CarlaLightSubsystem.h.

Referenced by FFrameData::AddWorldState(), and FFrameData::PlayWorldState().

◆ GetLight()

UCarlaLight * UCarlaLightSubsystem::GetLight ( int Id )

Definition at line 200 of file CarlaLightSubsystem.cpp.

References Lights.

Referenced by FFrameData::AddWorldState(), FFrameData::ProcessReplayerLightScene(), and CarlaReplayerHelper::ProcessReplayerLightScene().

◆ GetLights() [1/2]

TMap< int, UCarlaLight * > & UCarlaLightSubsystem::GetLights ( )

inline

Definition at line 66 of file CarlaLightSubsystem.h.

◆ GetLights() [2/2]

std::vector< carla::rpc::LightState > UCarlaLightSubsystem::GetLights ( FString Client )

Definition at line 155 of file CarlaLightSubsystem.cpp.

References ClientStates, IsValid(), and Lights.

Referenced by ACarlaRecorder::AddExistingActors(), FFrameData::AddWorldState(), ULightDefaultsJsonUtils::ApplyLightDefaultToClassLive(), FCarlaServer::FPimpl::BindActions(), ULightDefaultsJsonUtils::ReapplyLightDefaultsToLevel(), ULightDefaultsJsonUtils::ScanLightAssetsInLevel(), and ULightDefaultsJsonUtils::SetClassActorsSelected().

◆ Initialize()

void UCarlaLightSubsystem::Initialize ( FSubsystemCollectionBase & Collection )

override

Definition at line 17 of file CarlaLightSubsystem.cpp.

◆ IsUpdatePending()

bool UCarlaLightSubsystem::IsUpdatePending ( ) const

Definition at line 143 of file CarlaLightSubsystem.cpp.

References ClientStates.

Referenced by FCarlaEngine::OnPostTick().

◆ NotifyDayTimeChange()

void UCarlaLightSubsystem::NotifyDayTimeChange ( bool bIsDay )

Broadcast a day/night change and then re-apply the UE4->UE5 component intensity conversion on every registered light.

Use this instead of broadcasting DayTimeChangeEvent directly: blueprint-bound handlers push raw authored intensities into the light components, undoing any conversion applied earlier in the same broadcast.

Definition at line 109 of file CarlaLightSubsystem.cpp.

References bDayNightCycle, bHasDayTimeState, bLastIsDay, DayTimeChangeEvent, Lights, and SetClientStatesdirty().

Referenced by FFrameData::PlayWorldState(), and AWeather::UpdateStreetLightsForDayNight().

◆ NumLights()

int32 UCarlaLightSubsystem::NumLights ( ) const

inline

Definition at line 53 of file CarlaLightSubsystem.h.

Referenced by AWeather::UpdateStreetLightsForDayNight().

◆ RegisterLight()

void UCarlaLightSubsystem::RegisterLight ( UCarlaLight * CarlaLight )

Definition at line 27 of file CarlaLightSubsystem.cpp.

References bDayNightCycle, bHasDayTimeState, DayTimeChangeEvent, Lights, ScheduleDayTimeState(), and SetClientStatesdirty().

◆ ScheduleDayTimeState()

void UCarlaLightSubsystem::ScheduleDayTimeState ( UCarlaLight * CarlaLight )

private

Definition at line 68 of file CarlaLightSubsystem.cpp.

References bLastIsDay, IsValid(), Lights, PendingDayTimeLights, and SetClientStatesdirty().

Referenced by RegisterLight().

◆ SetClientStatesdirty()

void UCarlaLightSubsystem::SetClientStatesdirty ( FString ClientThatUpdate )

Flag every registered client (except ClientThatUpdate) so their LightManager re-queries light states.

Must be called after any server-side state change made outside a client request (day/night broadcast, recorder replay), or clients keep serving stale cached values.

Definition at line 228 of file CarlaLightSubsystem.cpp.

References ClientStates.

Referenced by NotifyDayTimeChange(), CarlaReplayerHelper::ProcessReplayerLightScene(), RegisterLight(), ScheduleDayTimeState(), and UnregisterLight().