Format ACP (A? Character P?)

Binary format that contains the definition of one or more sprites.

Specification

Offset	Size	Description
0x00	0x04	Stamp ACP
0x04	0x04	Number of sections
0x08	-	16-bits pointers relative to their position
-	-	Sprites definition

Sprite

Bits	Format	Description
0-7	int	Number of segments
8-13	float9	Position X start (by 6.0 only fractional)
14-18	-	Not used
19-24	float9	Position X end (by 6.0 only fractional)
25-29	float9	Position Z (by 6.0 only fractional)
30-31	-	Not used
-	-	Segments

For each segment, there are two values of 32-bits (or one of 64-bits):

Value 1:

Bits	Format	Description
0-3	int	Left S coordinate in tiles
4-7	int	Top T coordinate int tiles
8-16	float6	Coordinate X
17-25	float6	Coordinate Y
26-31	int	Texture format from table

Value 2:

Bits	Format	Description
0-8	float9	Coordinate Z (only fractional)
9-12	int	Right S coordinate in tiles
13-16	int	Bottom T coordinate in tiles
17-26	-	Not used
27-31	int	Palette index

Notes

• float6 is a decimal format unsigned, 3-bits integer part, 6-bits fractional part.
• float9 is a decimal format unsigned with only 9-bits of fractional part.
• The texture size comes from tables using the largest start or end coordinate.
  • T-size table is at 0x020DBFBC
  • S-size table is at 0x020DBF74
• The texture format table is at 0x020DBF98.
• The color 0 of the palette is always transparent.
• The sprites are converted into 3D commands in the subroutine 0x020D27A0 from overlay 48.
• The sprite to load is defined in the ANM file.