School Mate/Modding/Sdt codes

2010-09-12T21:01:50Z

124.121.47.84: sm00_00.pp

{{School Mate}}
Information on data types contained within each block based on code by Alamar.

===0===
Comment

Text - Comment text

===1===

<div style="float:right; clear:both;">__TOC__</div>

Dialogue

Int32 - Seems to be incremented for each code 1 block 
Text - Name of speaker, 設定１ to display no name 
Text - Sound file to play, empty string for no sound 
Int32 - number of lines of text

(Below is repeated for each line) 
Byte - Some sort of flag? Always 0 in known sdt files. 
Byte, Byte, Int32, Int32 - Read only if above byte is non-zero. Never happens in sdt files seen so far, purpose unknown. 
Text - Line of text 
(End repeated section) 

===2===
Gradually blends the entire screen from/to a given color over a given amount of time.

Byte - 0 blends from the given color to a scene. 1 blends the entire screen to the given color. Screen will stay blended until another code 2 restores it to normal. 
Int32 - Color 
Int32 - Time to spend blending, in seconds. 

===3===
Does not appear in sdt files seen so far.
===4===
Unknown

Int32 - always 2 
Text - always "NULL" or "siro.ema" 
Int32 - always 0 
Int32 - always 0 
Int32, Int32 - always [64,48] when text is "NULL", [1024,768] when text is "siro.ema"

===5===
Does not appear in sdt files seen so far.
===6===
Specifies name of sound file.

When sound file name is not "NULL", always followed by a block 7 and a block 8. 
Int32 - id assigned to loaded sound. 
Text - Name of sound file. Sometimes "NULL" to unload a sound. 
Byte - Unknown 
Byte - Unknown

===7===
Unknown. Often occurs between code 6 and code 8, but not always. count7a is always 1 and count7b always 1 or 2 in seen sdt files.

int count7a = ReadInt32(reader); 
for (int i = 0; i < count7a; i++) 
{ 
byte count7b = ReadByte(reader); 
ReadInt32(reader); 
ReadInt32(reader); 
if ((count7b > 0) && (count7b <= 2)) 
{ 
ReadInt32(reader); 
} 
} 

===8===
Believed to start playback of sounds specified in block 6.

Int32 - Matches the Int32 in a previous block 6.

===9===
Transfers to another .sdt file.

Text - name of .sdt file to move to. 
Int32 - Unknown. Seems to be 0 most if not all of the time. 

===10===
Label for jumps within a file. (See Code 22.)

Text - Label name

===11===
Displays a multiple-choice menu.

Int32 - Number of choices (always 2 in sdt files seen so far)

(Below is repeated for each choice) 
Int32 - Number of commands for if this option is chosen. 
Text - Text for this option. 
(data) - Commands for if this option is chosen. 
(End repeated block)

===12===
Unknown. Always followed by a code 13, a code 25, and a code 9 (jump to another file), but this may be a coincidence. 
All 5 examples of this code occur at the end of a file. 
Code 13 has only been seen following this code. 
Code 25 occurs in many other places.

Text - Always "sm00_00.pp" in sdt files seen so far. 
Int32 - Always 4294967295 in sdt files seen so far.

===13===
Unknown. Always seen preceded by a code 12.

===14===
Handles some scene transition logic

<pre>
Int32 - sub-opcode
Byte - Always 0
Byte - Always 0
Int32 - Parameter
</pre>

The first int32 is a sub-opcode.
* 1 determine the type of H. However, the game also checks elsewhere, and changing this value may result in incorrect behavior of the game.
* 3 indicates going back to main menu. Parameter always 1.
* 4 determines what the girl wear. Parameters:
** 0 = underwear + stockings, shoes etc
** 1 = default bikini
** 2 = personal dress
** 3 = school uniform
** FF = player's choice.
* 5 determines the location. Parameter value corresponds to lines in adv_load_map.lst

===15===
Unknown; appears to be some kind of if/then/else construct

Int32 - Number of times to repeat loop A. Always 1 in known sdt files. 
Byte - Always 0 
Int32 - (Number of commands for if true?) 
Int32 - (Number of commands for if false?) (Always 0 in known sdt files.)

(Loop A) 
Int32, Byte, Byte, Byte, Int32 - Unknown; possibly condition to be tested. 
(End loop A)

(data) - Commands (for if condition is true?)

(data) - Commands (for if condition is false?)

===16-19===
Not present in any known sdt files.

===20===
Stops script execution.

===21===
Not present in any known sdt files.

===22===
Jumps to a label within the file. Labels are set by code 10.

Text - Name of label

===23-24===
Not present in any known sdt files.

===25===
Delay, can be skipped by pressing mouse.

Int32 - Duration in milliseconds.

===26===
Loads information from/based on .lst files. (Unconfirmed, but seems highly likely.)

Int32 - 0 for adv_load_map.lst, 1 or higher for adv_load_cha.lst. Has not been seen higher than 3. 
Byte - 0 if Int32 is 0, 1 otherwise (0 for map, 1 for character?) 
Text - Seems to be either "adv_load_cha.lst", "adv_load_map.lst", or "NULL" 
Int32 - Refers to a line in the .lst file. 0 if text is "NULL"

With adv_load_map.lst, loads a location for the scene.

With adv_load_cha.lst, loads characters for the scene. Int32 is a number which is used by other commands to refer to that character.

When text is "NULL", unloads the map or a character from memory. (Based on value of Int32.) Always done before a second map is loaded.

===27===
Unknown 
In some randomly selected examples, always preceded by a code 30 or another code 27.

Int32 
Byte 
Int32 
Int32

===28===
Tilt Head? 
In some randomly selected examples, was always followed by a code 29.

Int32 Character Id 
Int32 
Int32 
Byte

===29===
Unknown

Int32 - Unknown 
Int32 - Always 0xFFFFFFFF if text value is "NULL" 
Text - Often "NULL", sometimes what looks like a mesh name

===30===
Moves a character to a new pose

Int32 - Character id from a code 26 line 
Int32 - Always -1 (0xFFFFFFFF) 
Int32 - Pose to switch to 
Byte - Always 0 
Byte - Always 0 
Byte - Always 0 or 1

===31===
Sets a character's expression.

Int32 - Character id, from a previous code 26. 
Int32 - Code for eye expression 
Int32 - Code for mouth expression 
Byte - Always 0 or 1

===32===
Moves a character to a specified location 
Often seems to be preceded by code 26 and followed by code 33.

Int32 - Character id 
Byte - Always 0 
Int32 - Interval to spend walking, in milliseconds 
Float32 
Float32 
Float32 
Byte - Always 0 or 1

===33===
Make a character face a given direction

Int32 - Character id 
Byte 
Int32 - Interval to spend turning to face new direction 
Int32 - Usually 0 
Float32 - New direction. Not sure if relative or absolue. 
Int32 - Usually 0 
Byte

===34-35===
Not present in any known sdt files.

===36===
Add/remove a mesh to a character, such as clothing.

Int32 - Character id 
Int32 
Text - Contains the name of a mesh of that character. (May be in head or body .xx file. Names can be found in the cat*.lst files) 
Byte - 0 to add, 1 to remove.

===37===
Unknown

Float32

===38===
Code 38 is capable of either zooming or moving the camera forward/backward. Details unknown.

Byte - Always 0 
Int32 - Time to spend moving camera 
Float32 
Float32 
Float32 
Byte - Always 0 or 1

===39===
Camera movement

Byte 
Int32 - Time to spend moving camera 
Int32 - Float? 
Int32 - Float? 
Int32 - Float? 
Byte

===40===
Not present in any known sdt files.
===41===
Unknown

Int32 
Int32

===42===
Unknown 
Seems to often be followed by 43-47 in sequence.

===43===
Unknown

===44===
Unknown

===45===
Unknown

===46===
Unknown

===47===
Unknown

===48===
Gradually blends the entire scene to/from the given color. Dialog text will still be displayed. Screen stays blended until the next code 48.

Byte - 1 to blend to the color, 0 to blend from it. 
Int32 - Color 
Int32 - Time to spend blending, in milliseconds.

===49===
Unknown

Int32 
Byte
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School Mate/Modding/Sdt codes