https://github.com/colby-swandale/waterfoul

Gameboy emulator written in Ruby-lang
https://github.com/colby-swandale/waterfoul

emulator gameboy ruby

Last synced: 9 days ago
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Gameboy emulator written in Ruby-lang

• Host: GitHub
• URL: https://github.com/colby-swandale/waterfoul
• Owner: colby-swandale
• Created: 2016-01-01T10:43:36.000Z (almost 9 years ago)
• Default Branch: master
• Last Pushed: 2020-05-16T03:12:44.000Z (over 4 years ago)
• Last Synced: 2024-10-14T20:34:02.516Z (22 days ago)
• Topics: emulator, gameboy, ruby
• Language: Ruby
• Homepage:
• Size: 261 KB
• Stars: 92
• Watchers: 4
• Forks: 7
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Code of conduct: CODE_OF_CONDUCT.md

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README

        
# Waterfoul

Waterfoul is a Gameboy emulator written in Ruby-lang. It is a casual excersize by myself to learn the internals

of the device and how it works.

## Getting Started

To start the emulator:

`bundle exec exe/waterfoul start `

Make sure to `bundle install` first and install required libraries.

By default the emulator will run the boot rom, if you wish to skip it then add `--skip-boot` as an option.

## Try turning on the --jit and --enable-frozen-string-literal to get max fps

`RUBYOPT="--enable-frozen-string-literal --jit --jit-max-cache=100000 --jit-min-calls=3" bundle exec exe/waterfoul start `

## Requirements

The [sdl2](https://www.libsdl.org/download-2.0.php) library is currenty used to render pixels. Most platforms have packages avaliable, else see [here](https://wiki.libsdl.org/Installation). This library is required and needs to be installed before you can run the emulator.

## Can it play roms?

Yes! but the list of roms that i know work is very limited to just Tetris, Super Mario Land and Pokemon Red. But a lot of work is being put into making other games compatable. The device does run the internal boot program succesfully and is passing test programs sucesfully (barggs).

## Controls

The following shows the mapped keys to control the game.

![gameboy key mapping](https://raw.githubusercontent.com/colby-swandale/waterfoul/master/documentation/keymap.png)

## Testing

If you wish to run the test suite, download the source code (make sure to run `bundle install`) and run `bundle exec rspec`