OBD:PSpc

ONI BINARY DATA PNTA << Other file types >> PSpL PSpc : Part Specification switch to XML:PSpc page Overview @ Oni Stuff

Offset	Type	Raw Hex	Value	Description
0x00	res_id	01 39 00 00	57	00057-level_3_part.PSpc
0x04	lev_id	01 00 00 06	3	level 3
0x08	int16	00 00	0	x-coordinate of top left corner of top left rectangle
...	...	...	...	...
0x4E	int16	00 00	0	y-coordinate of bottom right corner of bottom right rectangle
0x50	link	01 38 00 00	0	link to 00056-h_03.TXMP
0x54	char[12]	AD DE	dead	unused

For a visualization of nine-slice rendering, see HERE or XML:PSpc.

What is stored

There are 9 rectangles defined in PSpc: 4 corners, 4 sides and one interior rectangle. Typically all 9 are used (to draw buttons for example) or only one is used (the top left corner, to draw checkboxes for example). There are cases where the top left corner and the interior rectangle are both present, which indicates that the code can choose which part to draw.

The reason for using 9 rectangles is to allow drawing of buttons (and anything else that has defined corners) in various sizes without distorting the corners.

• the corners are never rescaled
• horizontal sides can be stretched horizontally
• vertical sides can be stretched vertically
• the interior can be stretched both ways

Of course that means that the sides and the interior must be specially designed to be stretchable without visible distortion.

How it is stored

A pair of int16 fields make a texture coordinate. The first 9 texture coordinates in the file (18 bytes) are the top-left corners of the 9 rectangles. The latter 9 coordinates are the bottom-right corners of the 9 rectangles. When both coordinates are 0 then the rectangle is not used. The order of the coordinates is top to bottom, left to right. Thus the order of the 9 rectangles is: top left, top center, top right, middle left, middle center, middle right, bottom left, bottom center, bottom right.

ONI BINARY DATA
PNTA << Other file types >> PSpL
PSpc : Part Specification
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