The BRCTR (Binary Revolution ConTRol) filetype applies specific settings for BRLYT files and makes possible the use of BRLAN animation files in Mario Kart Wii's User Interface elements, such as buttons, backgrounds and layouts. This kind of file is always found into the UI directory from the game's filesystem, and specifically into U8 files. They're located into ctrl folders.
File Format
The file starts with a header that is 0x14 byte long.
| Offset |
Type |
Description
|
| 0x00 |
String |
File magic. Always bctr in ASCII.
|
| 0x04 |
UInt16 |
Number of Sub-Headers. Always 2.
|
| 0x06 |
UInt16 |
Offset to the main BRLYT name (relative to the start of the Name Table).
|
| 0x08 |
UInt16 |
Offset to the BMG name (relative to the start of the Name Table).
|
| 0x0A |
UInt16 |
Offset to the picture source BRLYT name (relative to the start of the Name Table).
|
| 0x0C |
UInt16 |
Offset to the Animation Sub-Header.
|
| 0x0E |
UInt16 |
Offset to Layout Sub-Header.
|
| 0x10 |
UInt16 |
Offset to Name Table.
|
| 0x12 |
UInt16 |
Unknown.
|
| Offset |
Type |
Description
|
| 0x00 |
UInt16 |
Offset to the first Group (relative to the start of this header).
|
| 0x02 |
UInt16 |
Number of Groups.
|
| 0x04 |
UInt16 |
Offset to the first Animation (relative to the start of this header).
|
| 0x06 |
UInt16 |
Number of Animations.
|
Group
| Offset |
Type |
Description
|
| 0x00 |
UInt16 |
Offset to the Group name (relative to the start of the Name Table).
|
| 0x02 |
UInt16 |
Offset to the BRLYT group pane name (relative to the start of the Name Table).
|
| 0x04 |
UInt16 |
Index of the first Animation.
|
| 0x06 |
UInt16 |
Number of Animations.
|
Animation
| Offset |
Type |
Description
|
| 0x00 |
UInt16 |
Offset to the Animation name (relative to the start of the Name Table).
|
| 0x02 |
UInt16 |
Offset to the BRLAN name (relative to the start of the Name Table).
|
| 0x04 |
UInt16 |
Offset to the BRLAN name of the next animation (relative to the start of the Name Table).
|
| 0x06 |
Bool16 |
Whether the Animation is reversed.
|
| 0x08 |
Float |
Speed of the Animation.
|
| Offset |
Type |
Description
|
| 0x00 |
UInt16 |
Offset to the first Variant (relative to the start of this header).
|
| 0x02 |
UInt16 |
Number of Variants.
|
| 0x04 |
UInt16 |
Offset to the first Message (relative to the start of this header).
|
| 0x06 |
UInt16 |
Number of Messages.
|
| 0x08 |
UInt16 |
Offset to the first Picture (relative to the start of this header).
|
| 0x0A |
UInt16 |
Number of Pictures.
|
Variant
| Offset |
Type |
Description
|
| 0x00 |
UInt16 |
Offset to the Variant name (relative to the start of the Name Table).
|
| 0x02 |
UInt16 |
Transparency.
|
| 0x04 |
Bool16 |
Whether the Variant is animated.
|
| 0x06 |
UInt16 |
Padding.
|
| 0x08 |
Float |
Delay time for the animation. When going back, the delay works inverse.
|
| 0x0C |
Float |
Translation X (4:3).
|
| 0x10 |
Float |
Translation Y (4:3).
|
| 0x14 |
Float |
Translation Z (4:3).
|
| 0x18 |
Float |
Scale X (4:3).
|
| 0x1C |
Float |
Scale Y (4:3).
|
| 0x20 |
Float |
Translation X (16:9).
|
| 0x24 |
Float |
Translation Y (16:9).
|
| 0x28 |
Float |
Translation Z (16:9).
|
| 0x2C |
Float |
Scale X (16:9).
|
| 0x30 |
Float |
Scale Y (16:9).
|
| 0x34 |
UInt16 |
Index of the first Message.
|
| 0x36 |
UInt16 |
Number of Messages.
|
| 0x38 |
UInt16 |
Index of the first Picture.
|
| 0x3A |
UInt16 |
Number of Pictures.
|
Message
| Offset |
Type |
Description
|
| 0x00 |
UInt16 |
Offset to the BRLYT pane name (relative to the start of the Name Table).
|
| 0x02 |
UInt16 |
Offset to the Message name (relative to the start of the Name Table).
|
| 0x04 |
UInt32 |
BMG Message ID.
|
Picture
| Offset |
Type |
Description
|
| 0x00 |
UInt16 |
Offset to the destination BRLYT pane name (relative to the start of the Name Table), which must be contained in the main BRLYT.
|
| 0x02 |
UInt16 |
Offset to the source BRLYT pane name (relative to the start of the Name Table), which must be contained in the picture source BRLYT.
|
Name Table
At the end of the file, there is a section with null-terminated strings. The first string is always an empty one, such that unused fields can use an offset of zero.
Tools
The following tools can handle BRCTR files: