XeNTaX

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-> Open the file "resource.000" or "resource.9xx"
-> Seek to FILE_END - 4
-> Read: int32, this is the DATASTARTPOS
-> Seek to DATASTARTPOS
-> The DATA_size = RESOURCEFILE_SIZE - DATASTARTPOS - 4
-> Read the DATA (DATA_size)

-> Now we have the DATA, which is a zlib compressed block, with a little trick: it contains 4+4=8 plus bytes,
   in the middle of the DATA, so first we have to remove these bytes.
   So this is the structure of the DATA:
     First part: SOME_AMOUNT of bytes
     Number1 : 4 bytes
     Second part: SOME_AMOUNT of bytes
     Number2 : 4 bytes
     Last part : the rest of the bytes (DATA_size - 2 * SOME_AMOUNT - 8)
   The value of SOME_AMOUNT is: "resource.000" = 100 "resource.907" = 14
   (The formula for "resource.9XX" files: SOME_AMOUNT = XX * 2)
-> If we deleted the Number1 and Number2, we can decompress the ZLIB_compressed DATA
-> No we have the decompressed directory data, so let's go on.

-> the next step is only for the "resource.000":
   - There is an information table of the resource.xxx files:
      REPEAT
        Read RESOURCE_FILE_INFO: (112 bytes)
               ExtensionNumber : Int32 // 0=resource.000 100=resource.100 200=resource.200 201=resource.201
               UnknownNumber : Int32
               Dummy : Array[0..103] Of Byte // zero bytes
        IF (ExtensionNumber==0) AND (UnknownNumber==0) THEN THIS_IS_THE_END
      UNTIL THIS_IS_THE_END

-> now comes the information of the stored files:
      REPEAT
        Read EXT_id : Int32 // this means the extensions of the following files. 5=.tga 11=.wav 13=.dds and so on.
        Read NrOfFiles : Int32
        IF (EXT_id==0) AND (NrOfFiles==0) THEN THIS_IS_THE_END

        IF NOT THIS_IS_THE_END THEN:
            FOR 1 TO NrOfFiles
              Read FILE_INFO (76 bytes for each file)
                      FileName : Array[0..62] Of Char // with padding zero chars
                      FlagByte : Byte // this means the containing resource.XXX file -> see note #1
                      StartPos : Int32
                      OriginalSize : Int32
                      ZlibCompressedSize : Int32 // 0, if not compressed
        ENDIF
      UNTIL THIS_IS_THE_END
-> the next step is only for the "resource.907":
        Read RESOURCE_FILE_INFO: (112 bytes)
               ExtensionNumber : Int32 // 907=resource.907
               UnknownNumber : Int32
               Dummy : Array[0..103] Of Byte // zero bytes

-> the next step is only for the "resource.000":
   There are some unkown bytes at the end, maybe some useless, unimportant junk.

note #1:
The FlagByte: If we have the "resource.907" then this is 0, so no problem.
but if have the "resource.000" then this is 1,2,3 or 4, see the previously read RESOURCE_FILE_INFO blocks,
take the appropriate ExtensionNumber, and that means the correct resource.XXX file.