Utility class to parse map_logic.json files and apply traffic light timing configuration. More...

#include <MapLogicParser.h>

Static Public Member Functions
static void	ApplyLaneIdsFromMapLogic (const FString &XODRFilePath, ATrafficLightManager *TrafficLightManager)
	Apply lane IDs from map_logic.json to traffic light components.

static bool	ParseAndApplyMapLogic (const FString &XODRFilePath, ATrafficLightManager *TrafficLightManager)
	Parse map_logic.json file and apply traffic light timing configuration to the TrafficLightManager.

Static Private Member Functions
static void	ApplyTrafficLightLogic (const TArray< FTrafficLightLogicData > &LogicData, ATrafficLightManager *TrafficLightManager)
	Apply traffic light timing configuration to the TrafficLightManager.

static FString	GetDirectoryPath (const FString &FilePath)
	Get the directory path from a full file path.

static TArray< FTrafficLightLogicData >	LoadMapLogicFromJSON (const FString &XODRFilePath)
	Load and parse the map_logic.json file from the same directory as the XODR file.

static FTrafficLightTiming	ParseTimingFromJSON (TSharedPtr< FJsonObject > TimingJson)
	Parse timing data from JSON object.

static FTrafficLightLogicData	ParseTrafficLightFromJSON (TSharedPtr< FJsonObject > TrafficLightJson)
	Parse individual traffic light data from JSON object.

Detailed Description

Utility class to parse map_logic.json files and apply traffic light timing configuration.

Definition at line 103 of file MapLogicParser.h.

Member Function Documentation

◆ ApplyLaneIdsFromMapLogic()

void UMapLogicParser::ApplyLaneIdsFromMapLogic	(	const FString &	XODRFilePath,
		ATrafficLightManager *	TrafficLightManager
	)

static

Apply lane IDs from map_logic.json to traffic light components.

Parameters

XODRFilePath	Path to the .xodr file (will look for map_logic.json in same directory)
TrafficLightManager	The traffic light manager to apply configuration to

Definition at line 420 of file MapLogicParser.cpp.

References FTrafficLightLogicData::ActorName, FTrafficLightTiming::AmberDuration, ATrafficLightManager::GetController(), ATrafficLightManager::GetMap(), ATrafficLightBase::GetTrafficLightComponent(), FTrafficLightTiming::GreenDuration, FTrafficLightLogicData::Heads, LoadMapLogicFromJSON(), FTrafficLightTiming::RedDuration, ATrafficLightManager::RegisterLightComponentFromOpenDRIVE(), UTrafficLightController::SetGreenTime(), UTrafficLightController::SetRedTime(), UTrafficLightController::SetStates(), UTrafficLightController::SetYellowTime(), FTrafficLightLogicData::SignalID, FTrafficLightStage::State, FTrafficLightStage::Time, FTrafficLightLogicData::Timing, and FTrafficLightLogicData::TrafficLightGroupID.

Referenced by ATrafficLightManager::InitializeTrafficLights().

◆ ApplyTrafficLightLogic()

void UMapLogicParser::ApplyTrafficLightLogic	(	const TArray< FTrafficLightLogicData > &	LogicData,
		ATrafficLightManager *	TrafficLightManager
	)

staticprivate

Apply traffic light timing configuration to the TrafficLightManager.

Parameters

LogicData	Array of traffic light configurations to apply
TrafficLightManager	The traffic light manager to configure

Definition at line 110 of file MapLogicParser.cpp.

References ATrafficLightManager::GetController(), UTrafficLightController::SetGreenTime(), UTrafficLightController::SetRedTime(), and UTrafficLightController::SetYellowTime().

Referenced by ParseAndApplyMapLogic().

◆ GetDirectoryPath()

FString UMapLogicParser::GetDirectoryPath ( const FString & FilePath )

staticprivate

Get the directory path from a full file path.

Parameters

FilePath Full path to a file

Returns: Directory path without the filename

Definition at line 252 of file MapLogicParser.cpp.

Referenced by LoadMapLogicFromJSON().

◆ LoadMapLogicFromJSON()

TArray< FTrafficLightLogicData > UMapLogicParser::LoadMapLogicFromJSON ( const FString & XODRFilePath )

staticprivate

Load and parse the map_logic.json file from the same directory as the XODR file.

Parameters

XODRFilePath Path to the .xodr file

Returns: Array of parsed traffic light logic data, empty if file not found or parse failed

Definition at line 58 of file MapLogicParser.cpp.

References GetDirectoryPath(), and ParseTrafficLightFromJSON().

Referenced by ApplyLaneIdsFromMapLogic(), and ParseAndApplyMapLogic().

◆ ParseAndApplyMapLogic()

bool UMapLogicParser::ParseAndApplyMapLogic	(	const FString &	XODRFilePath,
		ATrafficLightManager *	TrafficLightManager
	)

static

Parse map_logic.json file and apply traffic light timing configuration to the TrafficLightManager.

Returns true if file was found and parsed successfully.

Parameters

XODRFilePath	Path to the .xodr file (will look for map_logic.json in same directory)
TrafficLightManager	The traffic light manager to apply configuration to

Returns: true if map_logic.json was found and applied successfully, false otherwise

Definition at line 30 of file MapLogicParser.cpp.

References ApplyTrafficLightLogic(), and LoadMapLogicFromJSON().

◆ ParseTimingFromJSON()

FTrafficLightTiming UMapLogicParser::ParseTimingFromJSON ( TSharedPtr< FJsonObject > TimingJson )

staticprivate

Parse timing data from JSON object.

Parameters

TimingJson JSON object containing timing information

Returns: Parsed timing configuration

Definition at line 218 of file MapLogicParser.cpp.

References FTrafficLightTiming::AmberBlinkInterval, FTrafficLightTiming::AmberDuration, FTrafficLightTiming::GreenDuration, and FTrafficLightTiming::RedDuration.

Referenced by ParseTrafficLightFromJSON().

◆ ParseTrafficLightFromJSON()

FTrafficLightLogicData UMapLogicParser::ParseTrafficLightFromJSON ( TSharedPtr< FJsonObject > TrafficLightJson )

staticprivate

Parse individual traffic light data from JSON object.

Parameters

TrafficLightJson JSON object representing a single traffic light configuration

Returns: Parsed traffic light logic data

Definition at line 138 of file MapLogicParser.cpp.

References FTrafficLightLogicData::ActorName, FTrafficLightHead::ComponentPrefix, FTrafficLightLogicData::Heads, FTrafficLightLogicData::JunctionID, FTrafficLightModule::LaneIds, FTrafficLightHead::LaneIds, FTrafficLightLogicData::Modules, ParseTimingFromJSON(), FTrafficLightHead::SignalID, FTrafficLightLogicData::SignalID, FTrafficLightLogicData::Timing, and FTrafficLightLogicData::TrafficLightGroupID.

Referenced by LoadMapLogicFromJSON().

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

Static Public Member Functions

Static Private Member Functions

Detailed Description

Member Function Documentation

◆ ApplyLaneIdsFromMapLogic()

◆ ApplyTrafficLightLogic()

◆ GetDirectoryPath()

◆ LoadMapLogicFromJSON()

◆ ParseAndApplyMapLogic()

◆ ParseTimingFromJSON()

◆ ParseTrafficLightFromJSON()