prime/README.md

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Metroid Prime
[![Build Status]][actions] ![Code Progress] ![Data Progress] [![Discord Badge]][discord]
=============
[Build Status]: https://github.com/PrimeDecomp/prime/actions/workflows/build.yml/badge.svg
[actions]: https://github.com/PrimeDecomp/prime/actions/workflows/build.yml
[Code Progress]: https://img.shields.io/endpoint?label=Code&url=https%3A%2F%2Fprogress.decomp.club%2Fdata%2Fprime%2FGM8E01_00%2Fdol%2F%3Fmode%3Dshield%26measure%3Dcode
[Data Progress]: https://img.shields.io/endpoint?label=Data&url=https%3A%2F%2Fprogress.decomp.club%2Fdata%2Fprime%2FGM8E01_00%2Fdol%2F%3Fmode%3Dshield%26measure%3Ddata
[Discord Badge]: https://img.shields.io/discord/727908905392275526?color=%237289DA&logo=discord&logoColor=%23FFFFFF
[discord]: https://discord.gg/hKx3FJJgrV
A work-in-progress decompilation of Metroid Prime.
This repository does **not** contain any game assets or assembly whatsoever. An existing copy of the game is required.
The following game versions are supported:
- `GM8E01_00` (USA v1.088)
<!--
- `GM8E01_01` (USA v1.093)
- `GM8E01_48` (KOR v1.097)
-->
If you'd like to contribute, see [CONTRIBUTING.md](CONTRIBUTING.md).
Dependencies
============
Windows:
--------
On Windows, it's **highly recommended** to use native tooling. WSL or msys2 are **not** required.
When running under WSL, [objdiff](#diffing) is unable to get filesystem notifications for automatic rebuilds.
- Install [Python](https://www.python.org/downloads/) and add it to `%PATH%`.
- Also available from the [Windows Store](https://apps.microsoft.com/store/detail/python-311/9NRWMJP3717K).
- Download [ninja](https://github.com/ninja-build/ninja/releases) and add it to `%PATH%`.
- Quick install via pip: `pip install ninja`
macOS:
------
- Install [ninja](https://github.com/ninja-build/ninja/wiki/Pre-built-Ninja-packages):
```
brew install ninja
```
- Install [wine-crossover](https://github.com/Gcenx/homebrew-wine):
```
brew install --cask --no-quarantine gcenx/wine/wine-crossover
```
After OS upgrades, if macOS complains about `Wine Crossover.app` being unverified, you can unquarantine it using:
```sh
sudo xattr -rd com.apple.quarantine '/Applications/Wine Crossover.app'
```
Linux:
------
- Install [ninja](https://github.com/ninja-build/ninja/wiki/Pre-built-Ninja-packages).
- For non-x86(_64) platforms: Install wine from your package manager.
- For x86(_64), [WiBo](https://github.com/decompals/WiBo), a minimal 32-bit Windows binary wrapper, will be automatically downloaded and used.
Building
========
- Clone the repository:
```
git clone https://github.com/PrimeDecomp/prime.git
```
- Update and Initialize submodules:
```
git submodule update --init --recursive
```
- Using [Dolphin Emulator](https://dolphin-emu.org/), extract your game to `orig/GM8E01_00` (or the appropriate version).
![](assets/dolphin-extract.png)
- To save space, the only necessary files are the following. Any others can be deleted.
- `sys/main.dol`
- `files/NESemuP.rel`
- Configure:
```
python configure.py
```
To use a version other than `GM8E01_00` (USA), specify `--version GM8E01_01` or similar.
- Build:
```
ninja
```
Diffing
=======
Once the initial build succeeds, an `objdiff.json` should exist in the project root.
Download the latest release from [encounter/objdiff](https://github.com/encounter/objdiff). Under project settings, set `Project directory`. The configuration should be loaded automatically.
Select an object from the left sidebar to begin diffing. Changes to the project will rebuild automatically: changes to source files, headers, `configure.py`, `splits.txt` or `symbols.txt`.
![](assets/objdiff.png)