qwyt / aoc-mgz

Age of Empires II recorded game parsing and summarization in Python 3.

mgz

Age of Empires II recorded game parsing and summarization in Python 3.

Supported Versions

• Age of Kings (.mgl)
• The Conquerors (.mgx)
• Userpatch 1.4 (.mgz)
• Userpatch 1.5 (.mgz)
• Definitive Edition (.aoe2record)

Architecture

The core functionality of mgz is a parser that produces a Python data structure based on a recorded game file. It also offers abstracted representations that make it easier to use the data.

Parsers

mgz offers two parsers, fast and full. The fast parser skips data that is rarely needed, while the full parser tries to parse as much as possible. Naturally, the fast parser is faster than the full parser.

Abstractions

Abstractions take parser output as input and return an object with normalized data that is easier to use for most cases. There are two abstractions available, summary and model. The summary abstraction attempts to expose the maximum amount of usable data. The model abstraction is more limited but automatically performs more lookups.

Support

Version	model	summary	fast (header)	fast (body)	full (header)	full (body)
Age of Kings (.mgl)		✓		✓	✓
The Conquerors (.mgx)		✓		✓	✓
Userpatch <= 1.4 (.mgz)		✓		✓	✓	✓
Userpatch 1.5 (.mgz)	✓	✓	✓	✓	✓	✓
Definitive Edition <= 13.34 (.aoe2record)		✓		✓	✓	✓
Definitive Edition > 13.34 (.aoe2record)	✓	✓	✓	✓	✓	✓

Examples

Full Parser

import os
from mgz import header, body

with open('/path/to/file', 'rb') as data:
    eof = os.fstat(data.fileno()).st_size
    header.parse_stream(data)
    body.meta.parse_stream(data)
    while data.tell() < eof:
        body.operation.parse_stream(data)

Full Parser (header) + Fast Parser (body)

import os
from mgz import header, fast

with open('/path/to/file', 'rb') as data:
    eof = os.fstat(data.fileno()).st_size
    header.parse_stream(data)
    fast.meta(data)
    while data.tell() < eof:
        fast.operation(data)

Summary

from mgz.summary import Summary

with open('/path/to/file', 'rb') as data:
    s = Summary(data)
    s.get_map()
    s.get_platform()
    # ... etc

Model

from mgz.model import parse_match

with open('/path/to/file', 'rb') as data:
    match = parse_match(data)
    match.map.name
    match.file.perspective.number
    # ... etc

Frequently Asked Questions

Q: Where are the end-of-game achievements/statistics?

A: In the postgame action, available only from Userpatch version.

Q: How can I tell the number of resources/kills/etc at a certain point?

A: You can't, without replaying the match in-game.

Q: How does a recorded game file work?

A: The first portion (the header) is a snapshot of the initial game state. The second portion (the body) is a list of moves made by players. The game loads the header, then applies each move to mutate the state according to the game rules.

Q: How can I install this package?

A: pip install mgz

Contribution

• Pull requests & patches welcome

Resources

• aoc-mgx-format: https://github.com/stefan-kolb/aoc-mgx-format
• recage: https://github.com/goto-bus-stop/recage
• recanalyst: http://sourceforge.net/p/recanalyst/
• genie-rs: https://github.com/SiegeEngineers/genie-rs/tree/default/crates/genie-rec
• bari-mgx-format: https://web.archive.org/web/20090215065209/http://members.at.infoseek.co.jp/aocai/mgx_format.html