JPA File

Contents

1. General Statement
2. Header Section
3. BEM1 section
4. BSP1 section
5. ESP1 section
6. TEX1 section
7. TDB1 section - CUSTOM
8. NWP1 section - CUSTOM

1. General Statement

JPA Files are used to create particle effects. They are used in games such as Super Mario Sunshine and Super Mario Galaxy 1/2 which hold a JPC archive containing many JPA files. Note that the JPA files generated from PyJPC contain custom data.

2. Header Section

Missing/unneeded in JPA files extracted using PyJPC.

Offset	Number of bytes	Description
0x00	4	Magic(JEFF)
0x04	4	Tag{Like in BMD/BDL}(jpa1)
0x08	4	Offset to end of file
0x0C	4	Number of sections
0x10	16	Padding?(0x00)

3. BEM1 section

Unknown purpose and byte arrangement.

4. BSP1 section

Unknown purpose and byte arrangement.

5. ESP1 section

Unknown purpose and byte arrangement.

6. TEX1 section

Texture section of the file.

Offset	Number of bytes	Description
0x00	4	Magic(TEX1)
0x04	4	Section Length
0x08	4	Padding(? - seems to be always 0)
0x0C	???	BTI Filename
0x??	???	Padding to 32 bytes

Afterwards is a raw BTI file.

7. TDB1 section - CUSTOM

Used in JPC files - outputted by PyJPC - NOT ALWAYS 0xC !!!

Offset	Number of bytes	Description
0x00	4	Magic(TDB1)
0x04	4	Section Length
0x08	2	TEX1 Entry Number from JPC

8. NWP1 section - CUSTOM

Created by PyJPC to store additional data.

Offset	Number of bytes	Description
0x00	4	Magic(NWP1)
0x04	4	Section Length
0x08	2	JPC Entry Number
0x0A	2	Number of sections to follow in JPC
0x0C	4	Unknown

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