MREA (File Format): Difference between revisions

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The '''.MREA file format''' is used to define areas in Metroid Prime and Donkey Kong Country Returns. MREA files are broken up into many sections, and each section serves a specific purpose. However for the sake of brevity this article will only cover each revision of the MREA header.
The '''MREA format''' is a massive format used to define areas in the Metroid Prime trilogy and Donkey Kong Country Returns. MREA files are broken up into many sections, and each section serves a different purpose.


__TOC__
* [[MREA (Metroid Prime)]]
* [[MREA (Metroid Prime 2)]]
* [[MREA (Metroid Prime 3)]] (also used in DKCR)


==Universal Header==
Every MREA format has a version number, and each corresponds to the following games:
 
This header is shared between Metroid Prime and Donkey Kong Country, and is fairly straight forward.


{| class="wikitable"
{| class="wikitable"
!Offset
! Version
!Size
! Game
!Description
|-
|0x0
|4
|'''Magic Number''' 0xDEADBEEF
|-
|0x4
|4
|'''File Version''' See below
|-
|0x8
|48
|'''Transformation Matrix''' The position of the area in world-space
|-
|0x38
|4
|'''Mesh Count'''
|-
|0x3C
|4
|'''SCLY Count''' ''Note: Not present in Metroid Prime 1''
|-
|0x40
|4
|'''Section Count'''
|}
 
{|class="wikitable"
!Version
!Game
|-
|15
|'''Metroid Prime 1'''
|-
|25
|'''Metroid Prime 2'''
|-
|30
|'''Metroid Prime 3'''
|-
|32
|'''Donkey Kong Country Returns'''
|}
 
 
 
==Metroid Prime Section Numbers==
 
Immediately following the header each section in an MREA is given it's own number, the following is the order in which they appear:
 
{|class="wikitable"
!Description
|-
|'''Materials'''
|-
|'''SCLY'''
|-
|'''SCGN''' ''Note: Not present in Metroid Prime 1''
|-
|'''Collision'''
|-
|-
|{{unknown|Unknown}}
| 0xC
| Metroid Prime Kiosk Demo
|-
|-
|'''Lights'''
| 0xF
| Metroid Prime
|-
|-
|'''VISI'''
| 0x15
| Metroid Prime 2 Demo Disk
|-
|-
|'''PATH'''
| 0x19
| Metroid Prime 2: Echoes
|-
|-
|'''AROT'''
| 0x1D
| Metroid Prime 3 E3 prototype
|-
|-
|'''PTLA''' ''Note: Not present in Metroid Prime 1''
| 0x1E
| Metroid Prime 3: Corruption
|-
|-
|'''EGMC''' ''Note: Not present in Metroid Prime 1''
| 0x20
| Donkey Kong Country Returns
|}
|}


==Metroid Prime 3 & Donkey Kong Header==
[[Category:File Formats]]
 
[[Category:Hub Articles]]
Metroid Prime 3 and Donkey Kong Country Returns share the same header, also Metroid Prime 2 contains the Compressed Block Count present in this header as well.
 
{| class="wikitable"
!Offset
!Size
!Description
|-
|0x0
|4
|'''Compressed Block Count''' ''Note: Present in Metroid Prime 2''
|0x4
|'''Section Number Count''' ''Note: see below''
|}

Latest revision as of 00:53, 6 May 2016

The MREA format is a massive format used to define areas in the Metroid Prime trilogy and Donkey Kong Country Returns. MREA files are broken up into many sections, and each section serves a different purpose.

Every MREA format has a version number, and each corresponds to the following games:

Version Game
0xC Metroid Prime Kiosk Demo
0xF Metroid Prime
0x15 Metroid Prime 2 Demo Disk
0x19 Metroid Prime 2: Echoes
0x1D Metroid Prime 3 E3 prototype
0x1E Metroid Prime 3: Corruption
0x20 Donkey Kong Country Returns
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