Usmap

Namespace: UAssetAPI.Unversioned

public class Usmap

Inheritance ObjectUsmap

Fields

FilePath

The path of the file on disk. This does not need to be specified for regular parsing.

public string FilePath;

FileVersionUE4

Game UE4 object version

public ObjectVersion FileVersionUE4;

FileVersionUE5

Game UE5 object version

public ObjectVersionUE5 FileVersionUE5;

CustomVersionContainer

All the custom versions stored in the archive.

public List<CustomVersion> CustomVersionContainer;

NetCL

public uint NetCL;

SkipBlueprintSchemas

Whether or not to skip blueprint schemas serialized in this mappings file. Only useful for testing.

public bool SkipBlueprintSchemas;

NameMap

.usmap name map

public List<string> NameMap;

EnumMap

.usmap enum map

public IDictionary<string, UsmapEnum> EnumMap;

Schemas

.usmap schema map

public IDictionary<string, UsmapSchema> Schemas;

CityHash64Map

Pre-computed CityHash64 map for all relevant strings

public IDictionary<ulong, string> CityHash64Map;

FailedExtensions

List of extensions that failed to parse.

public List<string> FailedExtensions;

PathsAlreadyProcessedForSchemas

public ISet<string> PathsAlreadyProcessedForSchemas;

USMAP_MAGIC

Magic number for the .usmap format

public static ushort USMAP_MAGIC;

Properties

AreFNamesCaseInsensitive

Whether or not FNames are case insensitive. Modifying this property is an expensive operation, and will re-construct several dictionaries.

public bool AreFNamesCaseInsensitive { get; set; }

Property Value

Boolean

Constructors

Usmap(String)

Reads a .usmap file from disk and initializes a new instance of the Usmap class to store its data in memory.

public Usmap(string path)

Parameters

path String
The path of the file file on disk that this instance will read from.

Exceptions

FormatException
Throw when the file cannot be parsed correctly.

Usmap(UsmapBinaryReader)

Reads a .usmap file from a UsmapBinaryReader and initializes a new instance of the Usmap class to store its data in memory.

public Usmap(UsmapBinaryReader reader)

Parameters

reader UsmapBinaryReader
The file's UsmapBinaryReader that this instance will read from.

Exceptions

FormatException
Throw when the asset cannot be parsed correctly.

Usmap()

Initializes a new instance of the Usmap class. This instance will store no data and does not represent any file in particular until the Usmap.ReadHeader(UsmapBinaryReader) method is manually called.

public Usmap()

Methods

GetSchemaFromStructExport(String, UnrealPackage)

public static UsmapSchema GetSchemaFromStructExport(string exportName, UnrealPackage asset)

Parameters

exportName String

asset UnrealPackage

Returns

UsmapSchema

GetSchemaFromStructExport(StructExport, Boolean)

public static UsmapSchema GetSchemaFromStructExport(StructExport exp, bool isCaseInsensitive)

Parameters

exp StructExport

isCaseInsensitive Boolean

Returns

UsmapSchema

GetAllProperties(String, String, UnrealPackage)

Retrieve all the properties that a particular schema can reference.

public IList<UsmapProperty> GetAllProperties(string schemaName, string modulePath, UnrealPackage asset)

Parameters

schemaName String
The name of the schema of interest.

modulePath String
Module path of the schema of interest.

asset UnrealPackage
An asset to also search for schemas within.

Returns

IList<UsmapProperty>
All the properties that the schema can reference.

GetAllPropertiesAnnotated(String, UnrealPackage, IDictionary<String, String>, Boolean, String, String)

Retrieve all the properties that a particular schema can reference as an annotated, human-readable text file.

public string GetAllPropertiesAnnotated(string schemaName, UnrealPackage asset, IDictionary<string, string> customAnnotations, bool recursive, string headerPrefix, string headerSuffix)

Parameters

schemaName String
The name of the schema of interest.

asset UnrealPackage
An asset to also search for schemas within.

customAnnotations IDictionary<String, String>
A map of strings to give custom annotations.

recursive Boolean
Whether or not to dump data for parent schemas as well.

headerPrefix String
The prefix of the subheader for each relevant schema.

headerSuffix String
The suffix of the subheader for each relevant schema.

Returns

String
An annotated, human-readable text file containing the properties that the schema can reference.

GetSchemaFromName(String, UnrealPackage, String, Boolean)

public UsmapSchema GetSchemaFromName(string nm, UnrealPackage asset, string modulePath, bool throwExceptions)

Parameters

nm String

asset UnrealPackage

modulePath String

throwExceptions Boolean

Returns

UsmapSchema

TryGetProperty<T>(FName, AncestryInfo, Int32, UnrealPackage, T&, Int32&)

Attempts to retrieve the corresponding .usmap property, given its ancestry.

public bool TryGetProperty<T>(FName propertyName, AncestryInfo ancestry, int dupIndex, UnrealPackage asset, T& propDat, Int32& idx)

Type Parameters

T
The type of property to output.

Parameters

propertyName FName
The name of the property to search for.

ancestry AncestryInfo
The ancestry of the property to search for.

dupIndex Int32
The duplication index of the property to search for. If unknown, set to 0.

asset UnrealPackage
An asset to also search for schemas within.

propDat T&
The property.

idx Int32&
The index of the property.

Returns

Boolean
Whether or not the property was successfully found.

TryGetPropertyData<T>(FName, AncestryInfo, UnrealPackage, T&)

Attempts to retrieve the corresponding .usmap property data corresponding to a specific property, given its ancestry.

public bool TryGetPropertyData<T>(FName propertyName, AncestryInfo ancestry, UnrealPackage asset, T& propDat)

Type Parameters

T
The type of property data to output.

Parameters

propertyName FName
The name of the property to search for.

ancestry AncestryInfo
The ancestry of the property to search for.

asset UnrealPackage
An asset to also search for schemas within.

propDat T&
The property data.

Returns

Boolean
Whether or not the property data was successfully found.

PathToStream(String)

Creates a MemoryStream from an asset path.

public static MemoryStream PathToStream(string p)

Parameters

p String
The path to the input file.

Returns

MemoryStream
A new MemoryStream that stores the binary data of the input file.

PathToReader(String)

Creates a BinaryReader from an asset path.

public UsmapBinaryReader PathToReader(string p)

Parameters

p String
The path to the input file.

Returns

UsmapBinaryReader
A new BinaryReader that stores the binary data of the input file.

ReadHeader(UsmapBinaryReader)

public UsmapBinaryReader ReadHeader(UsmapBinaryReader reader)

Parameters

reader UsmapBinaryReader

Returns

UsmapBinaryReader

Read(UsmapBinaryReader)

public void Read(UsmapBinaryReader compressedReader)

Parameters

compressedReader UsmapBinaryReader