Lua VFS

Development < Lua Scripting < Lua VFS

Modes

VFS.RAW
VFS.MOD (unimplemented, acts like VFS.ZIP)
VFS.MAP (unimplemented, acts like VFS.ZIP)
VFS.BASE (unimplemented, acts like VFS.ZIP)
VFS.ZIP
VFS.RAW_FIRST
VFS.ZIP_FIRST
VFS.RAW_ONLY (same as VFS.RAW)
VFS.ZIP_ONLY (same as VFS.ZIP)

Files

VFS.Include (if enviroment=nil then use current one)

 ( string "filename" [, table enviroment = nil [, number mode ] ] ) ->

VFS.LoadFile

 ( string "filename" [, number mode ] ) -> nil | string data

VFS.FileExists

 ( string "filename" [, number mode ] ) -> boolean

example usage: if VFS.FileExists("maps\\Castles.sdz") then ... end

VFS.DirList

 ( string "directory" [, string "pattern" = "*"  [, number mode ] ] )
   -> { [1] = string filename, ... }

VFS.SubDirs

 ( string "directory", [, string "pattern" = "*"  [, number mode ] ] )
   -> { [1] = string subdir1, ... }

VFS.UseArchive unsynced only!

 ( string "filename" [, number mode ], lua_function [, arg1 [,arg2 ]] )
   -> result1,result2,... of the given lua_function

Loads an archive temporarely in the VFS and then runs the given lua_function,
which can make usage of the files in the archive.

VFS.MapArchive unsynced only!

 ( string "filename/modname of archive", [string checksum of archive] )
   -> bool

Permanently loads an archive into the VFS (to load zipped music collections etc.).
Does nothing if the archive is already loaded in the VFS (won't reload even if there are
changes made to the archive). If checksum is given it checks if the to be loaded file is correct,
if not then it won't load it and return false.

VFS.UnmapArchive unsynced only! available in 97.0+

 ( string "filename/modname of archive")
   -> bool

Removes an already loaded archive (see VFS.MapArchive)

VFS.CompressFolder unsynced only!

 ( string "folderPath" [, string "archiveType" ] [, string "compressedFilePath" ] 
 [, bool includeFolder ] [, number mode ] ) -> nil

Compresses the specified folder.
archiveType defines the compression type which can currently be only "zip"
includeFolder specifies whether the archive should have the specified folder as root (defaults to false)

Packing

The Pack- and Unpack-functions are used to convert numbers->strings and strings->numbers. So you can read a binary file and then convert the received strings back to numbers and the other way around. Also you can use it in combination with the SendLuaXYZMsg-functions.

VFS.PackU8

VFS.PackU16

VFS.PackU32

VFS.PackS8

VFS.PackS16

VFS.PackS32

VFS.PackF32

arguments are:

VFS.PackX( number arg1, number arg2, number arg3, ... ) -> string

VFS.PackX( {[1]=number,[2]=number,..} ) -> string

VFS.UnpackU8

VFS.UnpackU16

VFS.UnpackU32

VFS.UnpackS8

VFS.UnpackS16

VFS.UnpackS32

VFS.UnpackF32

arguments are:

VFS.UnpackX( string "binary" [, number position = 1] [, number count] )

 -> number | table { [1]=number,[2]=number,.. }

Zlib

VFS.ZlibCompress unsynced only!

 ( string "uncompressedStr" )
   -> nil | string "compressedStr"

VFS.ZlibDecompress available in synced, too!

 ( string "compressedStr" [, number uncompressed size = 65500] )
   -> nil | string "uncompressedStr"