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Unigine::PackageUng Class

Header: #include <UniginePackageUng.h>

This class is used to operate with UNG packages.

Notice
The maximum size for a file inside a UNG package is limited to 2 GB.

PackageUng Class

Members


static PackageUngPtr create ( const char * password = 0, int compression_type = 2 ) #

Constructor. Creates a package using specified compression type, protected by a given password, if provided. By default a package is created using ZLIB compression and without password protection.

Arguments

  • const char * password - Password.
  • int compression_type - Compression type. One of the COMPRESSION_* variables.

Ptr<PackageUng> clone ( ) #

Clones the package.

void close ( ) #

Closes the package.

int createPackage ( const char * name ) #

Creates a package with a given name.

Arguments

  • const char * name - Package name.

Return value

1 if a package was created successfully; otherwise, 0.

int getCompressionType ( ) const#

Returns the type of compression used in the package.

Return value

Compression type. One of the COMPRESSION_* variables.

const char * getFileName ( int num ) #

Returns the name of a file with a given ID.

Arguments

  • int num - File ID. A number between 0 and the total number of files in the package.

Return value

File name.

int getNumFiles ( ) const#

Returns the number of files in the package.

Return value

Number of files.

int isSupported ( ) #

Returns a value indicating if UNG-packages are supported.

Return value

1 if UNG packages are supported; otherwise, 0.
Notice
UNG-packages are not supported in evaluation version.

int load ( const char * name ) #

Loads a package with a given name.

Arguments

  • const char * name - Package name.

Return value

1 if a package was loaded successfully; otherwise, 0.

int readFile ( unsigned char * OUT_data, int size ) #

Reads the contents of the currently selected file and puts it into the data array.
Notice
This operation is performed for a currently selected file. To select a file use selectFile().

Arguments

  • unsigned char * OUT_data - Data array.
    Notice
    This output buffer is to be filled by the Engine as a result of executing the method.
  • int size - File size, in bytes.

Return value

1 if a file was read successfully; otherwise, 0.

int selectFile ( const char * name, int & size ) #

Selects a file with a given name as a current one and puts its size to size.

Arguments

  • const char * name - File name.
  • int & size - Integer variable to store the size of the selected file.

Return value

1 if a file was selected successfully; otherwise, 0.

int writeFile ( const char * name, unsigned char * OUT_data, int size ) #

Writes data to a file with a given name.

Arguments

  • const char * name - File name.
  • unsigned char * OUT_data - Data to be written.
    Notice
    This output buffer is to be filled by the Engine as a result of executing the method.
  • int size - Size of the data to be written, in bytes.

Return value

1 if the data was successfully written to a file; otherwise, 0.

bool containsFile ( const char * name ) const#

Checks if the package contains the specified file.

Arguments

  • const char * name - File name.

Return value

true if the package contains the specified file; otherwise, false.

bool removeFile ( const char * name ) #

Removes the specified file from the package.

Arguments

  • const char * name - File name.

Return value

true if the specified file is successfully removed from the package; otherwise, false.

bool removeFile ( int num ) #

Removes the file with the specified ID from the package.

Arguments

  • int num - File ID. A number between 0 and the total number of files in the package.

Return value

true if the specified file is successfully removed from the package; otherwise, false.

int findFile ( const char * name ) const#

Returns the file ID in the package by its name.

Arguments

  • const char * name - File name.

Return value

File ID. A number between 0 and the total number of files in the package, or -1, if the file doesn't exist.
Last update: 19.12.2023
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