CTD is used to display text messages in game. It does not only contain the text to write on screen, but also the layout, font type, position and more.
In order to make a specific text appear in-game, the engine selects a message thorugh its unique identifier. Then, every message will refer to a layout which contains the display logic.
Text encoding
The encoding used is Shift-JIS. The European/American text uses a slighly different variant of Shift-JIS. To learn more on how the game engine renders those characters, check how character mapping is performed.
| Offset |
Type |
Description |
| 00 |
int32 |
File identifier, 0x44544340 |
| 04 |
int32 |
Version, always 1 |
| 08 |
int16 |
RESERVED |
| 0a |
int16 |
Unknonw |
| 0c |
int16 |
Layout count |
| 0e |
int16 |
Message count |
| 10 |
int32 |
Message offset |
| 14 |
int32 |
Layout offset |
| 18 |
int32 |
Text start offset |
| 1c |
int32 |
RESERVED |
Message
Describe a message with a text and links it to a layout
| Offset |
Type |
Description |
| 00 |
int32 |
Unique identifier |
| 04 |
int32 |
Text offset |
| 08 |
int32 |
Layout index |
| 0C |
int32 |
Wait Frame Count |
Layout
Describe how a message should be presented on screen
| Offset |
Type |
Description |
| 00 |
int16 |
Dialog X position |
| 02 |
int16 |
Dialog Y position |
| 04 |
int16 |
Balloon window width (borders excluded) |
| 06 |
int16 |
Balloon window height (borders excluded) |
| 08 |
uint8 |
Dialog box alignment |
| 09 |
uint8 |
Dialog box border type |
| 0a |
int16 |
Text alignment |
| 0c |
int16 |
Font size. 16=100%, 8=50% |
| 0e |
int16 |
Horizontal space between letters |
| 10 |
int16 |
Vertical space between letters |
| 12 |
int16 |
Text X offset |
| 14 |
int16 |
Text Y offset |
| 16 |
int16 |
Dialog Hook type |
| 18 |
int16 |
Dialog hook horizontal position |
| 1a |
int16 |
Text Color IDX |
| 1c |
int16 |
Padding |
| 1e |
int16 |
Padding |
Dialog box alignment
| Value |
Description |
| 0x0 |
Use position |
| 0x1 |
Align to the left |
| 0x2 |
Align to the centre |
| 0x3 |
Align to the right |
Dialog box borders
| Value |
Description |
| 0x0 |
Rounded borders |
| 0x1 |
Diamond borders |
| 0x2 |
Spike borders |
| 0x3 |
Black information dialog |
| 0x4 |
Diamond borders |
| 0x5 |
Invisible box |
Text alignment
| Value |
Vertical |
Horizontal |
Text alignment |
| 0x0 |
Top |
Left |
Left |
| 0x1 |
Top |
Right |
Left |
| 0x2 |
Top |
Center |
Left |
| 0x3 |
Top |
Left |
Left |
| 0x4 |
Top |
Left |
Left |
| 0x5 |
Top |
Right |
Right |
| 0x6 |
Top |
Center |
Center |
| 0x7 |
Top |
Left |
Left |
| 0x8 |
Center |
Left |
Left |
| 0x9 |
Center |
Right |
Left |
| 0xa |
Center |
Center |
Left |
| 0xb |
Bottom |
Center |
Left |
| 0xc |
Top |
Left |
Left |
| 0xd |
Center |
Right |
Right |
| 0xe |
Center |
Center |
Center |
| 0xf |
Bottom |
Center |
Center |
Dialog hook
| Value |
Shape |
Location |
Origin |
| 0x0 |
Hook |
Bottom |
Left |
| 0x1 |
Hook |
Bottom |
Right |
| 0x2 |
Hook |
Top |
Left |
| 0x3 |
Hook |
Top |
Right |
| 0x4 |
Bubble |
Bottom |
Left |
| 0x5 |
Bubble |
Bottom |
Right |
| 0x6 |
Bubble |
Top |
Left |
| 0x7 |
Bubble |
Top |
Right |
| 0x8 |
Spike |
Bottom |
Left |
| 0x9 |
Spike |
Bottom |
Right |
| 0xa |
Spike |
Top |
Left |
| 0xb |
Spike |
Top |
Right |
| 0xc |
None |
|
|
| 0xd |
None |
|
|
| 0xe |
None |
|
|
| 0xf |
None |
|
|