Generates a random city using the meshes provided. 更多...

#include <CityMapGenerator.h>

类 ACityMapGenerator 继承关系图:

ACityMapGenerator 的协作图:

Public 成员函数
Constructor and destructor
	ACityMapGenerator (const FObjectInitializer &ObjectInitializer)

	~ACityMapGenerator ()

Overriden from UObject
virtual void	PreSave (const ITargetPlatform *TargetPlatform) override

Public 成员函数继承自 ACityMapMeshHolder
	ACityMapMeshHolder (const FObjectInitializer &ObjectInitializer)
	Initializes the mesh holders.

Private 成员函数
Overriden from ACityMapMeshHolder
virtual void	UpdateMap () override
	Here does nothing, implement in derived classes.

Map construction and update related methods
void	UpdateSeeds ()
	Update the random seeds. Generate random if no fixed seed is used.

void	GenerateGraph ()
	Regenerate the DCEL.

void	GenerateRoads ()
	Add the road meshes to the scene based on the current DCEL.

void	GenerateRoadMap ()
	Generate the road map image and save to disk if requested.

Private 属性
Map generation properties
uint32	MapSizeX = 20u
	Size X of the map in map units.

uint32	MapSizeY = 20u
	Size Y of the map in map units.

bool	bGenerateRoads = true
	If false, no mesh is added, only the internal representation of road is generated.

bool	bUseFixedSeed = true
	If false, a random seed is generated each time.

int32	Seed = 123456789
	Seed of the random map generated.

Other private members
TUniquePtr< MapGen::DoublyConnectedEdgeList >	Dcel

TUniquePtr< MapGen::GraphParser >	DcelParser

Road map
bool	bTriggerRoadMapGeneration = false
	Trigger the generation a the road map image of the current layout (used for off-road and opposite lane invasion detection).

uint32	PixelsPerMapUnit = 50u
	The resolution in pixels per map unit of the road map.

bool	bLeftHandTraffic = false
	Whether the road map should be generated based on left-hand traffic.

bool	bSaveRoadMapToDisk = true
	If true, the road map encoded as an image is saved to disk.

bool	bDrawDebugPixelsToLevel = false
	If true, a debug point is drawn in the level for each pixel of the road map.

bool	bGenerateRoadMapOnSave = true
	The road map is re-computed on save so we always store an up-to-date version.

bool	bTagForSemanticSegmentation = false
	If true, activate the custom depth pass of each tagged actor in the level.

URoadMap *	RoadMap

URoadMap *	GetRoadMap ()

额外继承的成员函数
Protected 成员函数继承自 ACityMapMeshHolder
void	AddInstance (ECityMapMeshTag Tag, FTransform Transform)
	Add an instance of a mesh with a given transform.

void	AddInstance (ECityMapMeshTag Tag, uint32 X, uint32 Y)
	Add an instance of a mesh with a given tile location.

void	AddInstance (ECityMapMeshTag Tag, uint32 X, uint32 Y, float Angle)
	Add an instance of a mesh with a given tile location and rotation.

float	GetMapScale () const

UStaticMesh *	GetStaticMesh (ECityMapMeshTag Tag)
	Return the static mesh corresponding to Tag.

const UStaticMesh *	GetStaticMesh (ECityMapMeshTag Tag) const
	Return the static mesh corresponding to Tag.

ECityMapMeshTag	GetTag (const UStaticMesh &StaticMesh) const
	Return the tag corresponding to StaticMesh.

FVector	GetTileLocation (uint32 X, uint32 Y) const
	Return the 3D world location (relative to this actor) of the given 2D tile.

virtual void	OnConstruction (const FTransform &Transform) override
	Initializes the instantiators.

virtual void	PostInitializeComponents () override

void	SetStaticMesh (ECityMapMeshTag Tag, UStaticMesh *Mesh)
	Set the static mesh associated with Tag.

详细描述

Generates a random city using the meshes provided.

注解: At this point it only generates roads and sidewalks.

在文件 CityMapGenerator.h 第 22 行定义.

构造及析构函数说明

◆ ACityMapGenerator()

ACityMapGenerator::ACityMapGenerator ( const FObjectInitializer & ObjectInitializer )

在文件 CityMapGenerator.cpp 第 51 行定义.

引用了 RoadMap.

◆ ~ACityMapGenerator()

ACityMapGenerator::~ACityMapGenerator ( )

在文件 CityMapGenerator.cpp 第 57 行定义.

成员函数说明

◆ GenerateGraph()

void ACityMapGenerator::GenerateGraph ( )

private

Regenerate the DCEL.

在文件 CityMapGenerator.cpp 第 109 行定义.

引用了 Dcel, DcelParser, MapGen::GraphGenerator::Generate(), MapSizeX, MapSizeY , 以及 Seed.

被这些函数引用 UpdateMap().

函数调用图:

这是这个函数的调用关系图:

◆ GenerateRoadMap()

void ACityMapGenerator::GenerateRoadMap ( )

private

Generate the road map image and save to disk if requested.

在文件 CityMapGenerator.cpp 第 262 行定义.

引用了 bDrawDebugPixelsToLevel, bLeftHandTraffic, bSaveRoadMapToDisk, bTagForSemanticSegmentation, ACityMapMeshHolder::GetMapScale(), CityMapMeshTag::GetRoadIntersectionSize(), ACityMapMeshHolder::GetTag(), LineTrace(), MapSizeX, MapSizeY, PixelsPerMapUnit, URoadMap::Reset(), RoadMap, URoadMap::SaveAsPNG(), URoadMap::SetPixelAt() , 以及 ATagger::TagActorsInLevel().

被这些函数引用 PreSave() , 以及 UpdateMap().

函数调用图:

这是这个函数的调用关系图:

◆ GenerateRoads()

void ACityMapGenerator::GenerateRoads ( )

private

Add the road meshes to the scene based on the current DCEL.

在文件 CityMapGenerator.cpp 第 153 行定义.

引用了 ADD_INTERSECTION, ACityMapMeshHolder::AddInstance(), Dcel, CityMapMeshTag::GetRoadIntersectionSize(), FHalfEdgeCounter::Insert(), MapGen::TIntersection, MapGen::Turn90Deg , 以及 MapGen::XIntersection.

被这些函数引用 UpdateMap().

函数调用图:

这是这个函数的调用关系图:

◆ GetRoadMap()

URoadMap * ACityMapGenerator::GetRoadMap ( )

inline

在文件 CityMapGenerator.h 第 62 行定义.

◆ PreSave()

void ACityMapGenerator::PreSave ( const ITargetPlatform * TargetPlatform )

overridevirtual

在文件 CityMapGenerator.cpp 第 63 行定义.

引用了 bGenerateRoadMapOnSave, GenerateRoadMap() , 以及 RoadMap.

函数调用图:

◆ UpdateMap()

void ACityMapGenerator::UpdateMap ( )

overrideprivatevirtual

Here does nothing, implement in derived classes.

重载 ACityMapMeshHolder .

在文件 CityMapGenerator.cpp 第 83 行定义.

引用了 bGenerateRoads, bTriggerRoadMapGeneration, GenerateGraph(), GenerateRoadMap(), GenerateRoads() , 以及 UpdateSeeds().

函数调用图:

◆ UpdateSeeds()

void ACityMapGenerator::UpdateSeeds ( )

private

Update the random seeds. Generate random if no fixed seed is used.

在文件 CityMapGenerator.cpp 第 100 行定义.

引用了 bUseFixedSeed , 以及 Seed.

被这些函数引用 UpdateMap().

这是这个函数的调用关系图:

类成员变量说明

◆ bDrawDebugPixelsToLevel

bool ACityMapGenerator::bDrawDebugPixelsToLevel = false

private

If true, a debug point is drawn in the level for each pixel of the road map.

在文件 CityMapGenerator.h 第 152 行定义.

被这些函数引用 GenerateRoadMap().

◆ bGenerateRoadMapOnSave

bool ACityMapGenerator::bGenerateRoadMapOnSave = true

private

The road map is re-computed on save so we always store an up-to-date version.

Uncheck this only for testing purposes as the road map might get out-of-sync with the current road layout.

在文件 CityMapGenerator.h 第 159 行定义.

被这些函数引用 PreSave().

◆ bGenerateRoads

bool ACityMapGenerator::bGenerateRoads = true

private

If false, no mesh is added, only the internal representation of road is generated.

在文件 CityMapGenerator.h 第 109 行定义.

被这些函数引用 UpdateMap().

◆ bLeftHandTraffic

bool ACityMapGenerator::bLeftHandTraffic = false

private

Whether the road map should be generated based on left-hand traffic.

在文件 CityMapGenerator.h 第 140 行定义.

被这些函数引用 GenerateRoadMap().

◆ bSaveRoadMapToDisk

bool ACityMapGenerator::bSaveRoadMapToDisk = true

private

If true, the road map encoded as an image is saved to disk.

The image is saved to the "Saved" folder of the project.

在文件 CityMapGenerator.h 第 146 行定义.

被这些函数引用 GenerateRoadMap().

◆ bTagForSemanticSegmentation

bool ACityMapGenerator::bTagForSemanticSegmentation = false

private

If true, activate the custom depth pass of each tagged actor in the level.

This pass is necessary for rendering the semantic segmentation. However, it may add a performance penalty since occlusion doesn't seem to be applied to objects having this value active.

在文件 CityMapGenerator.h 第 167 行定义.

被这些函数引用 GenerateRoadMap().

◆ bTriggerRoadMapGeneration

bool ACityMapGenerator::bTriggerRoadMapGeneration = false

private

Trigger the generation a the road map image of the current layout (used for off-road and opposite lane invasion detection).

在文件 CityMapGenerator.h 第 130 行定义.

被这些函数引用 UpdateMap().

◆ bUseFixedSeed

bool ACityMapGenerator::bUseFixedSeed = true

private

If false, a random seed is generated each time.

在文件 CityMapGenerator.h 第 113 行定义.

被这些函数引用 UpdateSeeds().

◆ Dcel

TUniquePtr<MapGen::DoublyConnectedEdgeList> ACityMapGenerator::Dcel

private

在文件 CityMapGenerator.h 第 179 行定义.

被这些函数引用 GenerateGraph() , 以及 GenerateRoads().

◆ DcelParser

TUniquePtr<MapGen::GraphParser> ACityMapGenerator::DcelParser

private

在文件 CityMapGenerator.h 第 181 行定义.

被这些函数引用 GenerateGraph().

◆ MapSizeX

uint32 ACityMapGenerator::MapSizeX = 20u

private

Size X of the map in map units.

The map unit is calculated based in the tile mesh of the road (see Map Scale).

在文件 CityMapGenerator.h 第 97 行定义.

被这些函数引用 GenerateGraph() , 以及 GenerateRoadMap().

◆ MapSizeY

uint32 ACityMapGenerator::MapSizeY = 20u

private

Size Y of the map in map units.

The map unit is calculated based in the tile mesh of the road (see Map Scale).

在文件 CityMapGenerator.h 第 103 行定义.

被这些函数引用 GenerateGraph() , 以及 GenerateRoadMap().

◆ PixelsPerMapUnit

uint32 ACityMapGenerator::PixelsPerMapUnit = 50u

private

The resolution in pixels per map unit of the road map.

The map unit is calculated based in the tile mesh of the road (see Map Scale).

在文件 CityMapGenerator.h 第 136 行定义.

被这些函数引用 GenerateRoadMap().

◆ RoadMap

URoadMap* ACityMapGenerator::RoadMap

private

在文件 CityMapGenerator.h 第 170 行定义.

被这些函数引用 ACityMapGenerator(), GenerateRoadMap() , 以及 PreSave().

◆ Seed

int32 ACityMapGenerator::Seed = 123456789

private

Seed of the random map generated.

在文件 CityMapGenerator.h 第 117 行定义.

被这些函数引用 GenerateGraph() , 以及 UpdateSeeds().

该类的文档由以下文件生成:

Public 成员函数

Private 成员函数

Private 属性

Road map

额外继承的成员函数

详细描述

构造及析构函数说明

◆ ACityMapGenerator()

◆ ~ACityMapGenerator()

成员函数说明

◆ GenerateGraph()

◆ GenerateRoadMap()

◆ GenerateRoads()

◆ GetRoadMap()

◆ PreSave()

◆ UpdateMap()

◆ UpdateSeeds()

类成员变量说明

◆ bDrawDebugPixelsToLevel

◆ bGenerateRoadMapOnSave

◆ bGenerateRoads

◆ bLeftHandTraffic

◆ bSaveRoadMapToDisk

◆ bTagForSemanticSegmentation

◆ bTriggerRoadMapGeneration

◆ bUseFixedSeed

◆ Dcel

◆ DcelParser

◆ MapSizeX

◆ MapSizeY

◆ PixelsPerMapUnit

◆ RoadMap

◆ Seed