imported>Ikskoks: Ikskoks moved page RollerCoaster Tycoon 3 to RollerCoaster Tycoon 3 OVL

2021-01-20T23:48:40Z

Ikskoks moved page RollerCoaster Tycoon 3 to RollerCoaster Tycoon 3 OVL

← Older revision	Revision as of 23:48, 20 January 2021
(No difference)

imported>Ikskoks: Ikskoks moved page RollerCoaster Tycoon 3 to RollerCoaster Tycoon 3 OVL

2021-01-20T23:48:40Z

Ikskoks moved page RollerCoaster Tycoon 3 to RollerCoaster Tycoon 3 OVL

← Older revision	Revision as of 23:48, 20 January 2021
(No difference)

imported>Ikskoks at 23:48, 20 January 2021

2021-01-20T23:48:30Z

← Older revision	Revision as of 23:48, 20 January 2021
(No difference)

imported>Ikskoks at 23:48, 20 January 2021

2021-01-20T23:48:30Z

← Older revision		Revision as of 23:48, 20 January 2021
Line 197:		Line 197:

	* [[Game Extractor\|Game Extractor]]<br>		* [[Game Extractor\|Game Extractor]]<br>


			[[Category:File Format]]

imported>WATTO at 02:59, 16 May 2005

2005-05-16T02:59:50Z

← Older revision	Revision as of 02:59, 16 May 2005
(No difference)

imported>WATTO at 02:59, 16 May 2005

2005-05-16T02:59:50Z

New page

* [[GRAFs|Return to the list of games]]

Choose archive extension:

== OVL ==

* ''' Format Type ''': Archive 
* ''' [http://en.wikipedia.org/wiki/Endianness Endian Order] ''': Little Endian 

=== Format Specifications ===

<tt>
 ''' // .COMMON.OVL Files ''' 
 
 ''' // Header ''' 
: char {4}     - Header (FGRK) 
: uint32 {4}   - null 
: uint32 {4}   - Version (1) 
: uint64 {8}   - null 
: uint32 {4}   - Number Of Directories (maximum of 4 directories) 
 
: ''' // for each directory ''' 
:: uint16 {2}   - Format Header Length 
:: char {X}     - Format Header (FGDK,RCT3) 
:: uint16 {2}   - Directory Name Length 
:: char {X}     - Directory Name 
:: uint32 {4}   - '' Directory Format? (1=RCT3, 2=FGDK) '' 
:: uint16 {2}   - Extension Name Length 
:: char {X}     - Extension Name 
 
: uint64 {8}   - Number Of Files Of Type 0 
: uint64 {8}   - Number Of Files Of Type 1 
: uint64 {8}   - Number Of Files Of Type 2 
: uint64 {8}   - Number Of Files Of Type 3 
: uint32 {4}   - null 
 
 ''' // The way I think this works is that there are a fixed number of directories ''' 
 ''' // allowed in an archive (4). The directories each list their number of files ''' 
 ''' // under the directory loop, as shown by "Number Of Files Of Type #" above. ''' 
 ''' // So to read the archive, you would read the filename directory file, then all ''' 
 ''' // files of type 0, then all files of type 1, etc. ''' 
 
 ''' // Filename Directory ''' 
 
: ''' // for each filename directory ''' 
:: uint32 {4}   - Length of Directory 
 
:: ''' // for each file in the directory ''' 
::: char {X}     - Filename (replace the : character with a . character) 
::: byte {1}     - null Filename Terminator 
 
 ''' // File Data ''' 
 
: ''' // for each file ''' 
:: uint32 {4}   - File Length 
:: byte {X}     - File Data 
 
 ''' // Offset Directory ''' 
 
: uint32 {4}   - Number Of Entries 
 
: ''' // for each entry ''' 
:: uint32 {4}   - Offset to something [+185] 
 
 ''' // ID Directory ''' 
 
: ''' // If the first 4 bytes are not null, then the ID directory exists ''' 
: ''' // If null, it is the start of the source file directory as indicated below ''' 
: ''' // There are 4 bytes for every 2 entries in the offset directory above ''' 
 
: ''' // for each numEntries/2 ''' 
:: uint32 {4}   - '' Unknown (1/4) '' 
 
 ''' // Source File Directory ''' 
 
: ''' // Sometimes this section does not exist ''' 
: ''' // NOTE: THIS SECTION HAS NOT BEEN RESEARCHED FULLY - IT WILL BE BUGGY! ''' 
 
: uint32 {4}   - '' null (start of source file directory marker?) '' 
 
: ''' // for each group ''' 
:: uint32 {4}   - '' Unknown '' 
:: uint32 {4}   - Group Data Length 
:: uint16 {2}   - Description Length 
:: char {X}     - Description 
 
:: ''' // for each file in this group ''' 
::: uint32 {4}   - '' A Relative Offset? '' 
::: uint32 {4}   - '' Unknown (1) '' 
::: byte {1}     - '' Unknown '' 
::: uint16 {2}   - Filename Length 
::: char {X}     - Filename 
::: byte {1}     - '' Unknown '' 
::: byte {1}     - '' Unknown '' 
 
:: uint32 {4}   - Group End Marker (all 255s) 
 
 
 
 ''' // .UNIQUE.OVL Files ''' 
char {4}     - Header (FGRK) 
uint32 {4}   - null 
uint32 {4}   - Version (1) 
uint64 {8}   - null 
uint32 {4}   - Number Of Directories 
 
 ''' // for each directory ''' 
: uint16 {2}   - Format Header Length 
: char {X}     - Format Header (FGDK,RCT3) 
: uint16 {2}   - Directory Name Length 
: char {X}     - Directory Name 
: uint32 {4}   - '' Unknown (1,2) '' 
: uint16 {2}   - Extension Name Length 
: char {X}     - Extension Name 
 
uint64 {8}   - Number Of Files Of Type 0 
uint64 {8}   - Number Of Files Of Type 1 
uint64 {8}   - Number Of Files Of Type 2 
uint64 {8}   - Number Of Files Of Type 3 
uint32 {4}   - null 
uint32 {4}   - Directory Length 
 
 ''' // for each file ''' 
: uint32 {4}   - Filename Offset (relative to the start of the filename directory) 
: uint32 {4}   - '' Unknown '' 
: uint32 {4}   - '' File Type ID? (1) '' 
 
uint32 {4}   - Directory Length 
 ''' // for each file ''' 
: uint32 {4}   - '' File Type ID? (0-6) '' 
: uint32 {4}   - '' Unknown '' 
: uint32 {4}   - null 
: uint32 {4}   - '' Unknown '' 
: uint32 {4}   - '' Unknown (1-2) '' 
 
uint32 {4}   - Directory Length 
 
 ''' // for each file ''' 
: uint32 {4}   - '' Unknown '' 
: uint32 {4}   - '' Unknown '' 
: uint32 {4}   - '' Unknown (increments by 20 every X files, where X is variable) '' 
 
uint32 {4}   - Directory Length 
 
 ''' // for each file ''' 
: byte {22}    - null 
: uint32 {4}   - '' Unknown '' 
: uint16 {2}   - null 
: uint32 {4}   - '' Unknown '' 
: uint64 {8}   - '' Unknown '' 
: uint32 {4}   - null 
: uint32 {4}   - '' Unknown '' 
: uint32 {4}   - '' Unknown '' 
: uint32 {4}   - '' Unknown (repeat) '' 
: uint32 {4}   - '' Unknown (repeat) '' 
: uint32 {4}   - null 
: uint32 {4}   - Padding (all 255's) 
: uint32 {4}   - null 
: uint32 {4}   - '' Unknown '' 
: uint32 {4}   - '' Unknown (2) '' 
: byte {12}    - null 
: uint32 {4}   - '' Unknown (1) '' 
: uint32 {4}   - null 
: uint32 {4}   - '' Offset? (big) '' 
: uint32 {4}   - '' Offset? (big)(repeat) '' 
: uint64 {8}   - null 
 
uint32 {4}   - Directory Length 
 
 ''' // for each file ''' 
: byte {28}    - null 
: uint32 {4}   - '' Unknown '' 
: byte {28}    - null 
: uint32 {4}   - '' Unknown '' 
: uint32 {4}   - '' Unknown (2) '' 
: byte {28}    - null 
: uint32 {4}   - '' Unknown (1) '' 
: uint32 {4}   - null 
: uint32 {4}   - '' Offset? (big) '' 
: uint32 {4}   - '' Offset? (big)(repeat) '' 
 
uint32 {4}   - Directory Length [*4] 
 
 ''' // for each file ''' 
: uint32 {4}   - '' Unknown '' 
 
 ''' // The source file directory comes here, same as in the .common.ovl files ''' 
 
</tt>

=== MultiEx BMS Script ===

Not written yet 

=== Compatible Programs ===

* [[Game Extractor|Game Extractor]]

RollerCoaster Tycoon 3 OVL - Revision history

imported>Ikskoks: Ikskoks moved page RollerCoaster Tycoon 3 to RollerCoaster Tycoon 3 OVL

imported>Ikskoks: Ikskoks moved page RollerCoaster Tycoon 3 to RollerCoaster Tycoon 3 OVL

imported>Ikskoks at 23:48, 20 January 2021

imported>Ikskoks at 23:48, 20 January 2021

imported>WATTO at 02:59, 16 May 2005

imported>WATTO at 02:59, 16 May 2005