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AAMP: Difference between revisions
→Structure: fix struct definitions (offsets and counts are packed as a single u32; they are not separate fields)
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(→Structure: fix struct definitions (offsets and counts are packed as a single u32; they are not separate fields)) |
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AAMP is a (typically) little endian format. | AAMP is a (typically) little endian format. | ||
Unlike some other file formats, AAMP files have the exact same structure and endianness on Wii U and Switch, so these files are interchangeable between the consoles. | Unlike some other file formats, AAMP files in ''Breath of the Wild'' have the exact same structure and endianness on Wii U and Switch, so these files are interchangeable between the consoles. | ||
=== Introduction === | === Introduction === | ||
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=== Section order === | === Section order === | ||
* Header | * Header | ||
* Parameter lists | * Parameter lists | ||
* Parameter objects | |||
* Parameters | |||
* Data section (to store parameter data) | * Data section (to store parameter data) | ||
* String section (to store strings) | * String section (to store strings) | ||
* Unknown uint32 section (unused?) | * Unknown uint32 section (unused?) | ||
For more information on the ordering, refer to the [https://github.com/zeldamods/oead/blob/v0.9.0-2/src/aamp.cpp#L262 oead source code]. | |||
=== Header === | === Header === | ||
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| 0x10 || u32 || Parameter IO version | | 0x10 || u32 || Parameter IO version | ||
|- | |- | ||
| 0x14 || u32 || Offset to parameter IO | | 0x14 || u32 || Offset to parameter IO relative to 0x30 | ||
|- | |- | ||
| 0x18 || u32 || Number of lists (including parameter IO) | | 0x18 || u32 || Number of lists (including parameter IO) | ||
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| 0x0 || u32 || Name CRC32 | | 0x0 || u32 || Name CRC32 | ||
|- | |- | ||
| 0x4 || | | 0x4 || u32 || | ||
* Bits 0-15: Offset to child lists, divided by 4 and relative to parameter list start | |||
* Bits 16-31: Number of child lists | |||
|- | |- | ||
| | | 0x8 || u32 || | ||
* Bits 0-15: Offset to child objects, divided by 4 and relative to parameter list start | |||
* Bits 16-31: Number of child objects | |||
|} | |} | ||
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| 0x0 || u32 || Name CRC32 | | 0x0 || u32 || Name CRC32 | ||
|- | |- | ||
| 0x4 || | | 0x4 || u32 || | ||
* Bits 0-15: Offset to child parameters, divided by 4 and relative to parameter object start | |||
* Bits 16-31: Number of child parameters | |||
|} | |} | ||
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| 0x0 || u32 || Name CRC32 | | 0x0 || u32 || Name CRC32 | ||
|- | |- | ||
| 0x4 || | | 0x4 || u32 || | ||
* Bits 0-23: Offset to data, divided by 4 and relative to parameter start.<br>For strings, this points to a string in the string section. For other parameter types, this points to the data section. | |||
* Bits 24-31: Parameter type | |||
|} | |} | ||
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== Usage in ''Breath of the Wild'' == | == Usage in ''Breath of the Wild'' == | ||
AAMP files are used in ''Breath of the Wild'' to store parameters that define the game's behaviour. They are very frequently used inside [[ | AAMP files are used in ''Breath of the Wild'' to store parameters that define the game's behaviour. They are very frequently used inside [[actor pack]] archives, where they define most of an Actor's characteristics. | ||
=== Naming conventions for arrays === | === Naming conventions for arrays === | ||
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== Tools == | == Tools == | ||
The following tools can be used to convert AAMP files to an editable format, and back again: | The following tools can be used to convert AAMP files to an editable format, and back again: | ||
{{Tool table|category=Tools (AAMP)}} | |||
[[Category:File formats]] | [[Category:File formats]] | ||