gosu.cr

Shard for using Gosu with Crystal

Under development: implementation is incomplete.

Status

Implemented

• Gosu
• Window
• TextInput
• Font
• Song
• Sample
• Channel
• Image
• GLTexInfo
• Color (in-progress)
• Numeric helper functions e.g. 90.degrees_to_radians

Installation

1. Add the dependency to your shard.yml:

   dependencies:
     gosu:
       github: gosu/gosu.cr
   

2. Run shards install

Usage

require "gosu"

class Window < Gosu::Window
  def initialize
    super(512, 512)
  end
end

Window.new.show

Where possible gosu.cr imitates the Ruby gem.

Development

Unix

1. Install gosu as a system library, see wiki. (Note: may need to edit gosu/cmake/build/cmake_install.cmake to change set(CMAKE_INSTALL_PREFIX "/usr/local") to set(CMAKE_INSTALL_PREFIX "/usr"))
2. Run your project: crystal run --link-flags -lgosu-ffi YOU_PROGRAM.cr

Windows

1. Build gosu using Visual Studio or MSBuild (GosuFFI project)
2. Copy Gosu.lib and gosu-ffi.lib into the /lib directory of your crystal-lang install
3. Copy SDL2.dll and gosu-ffi.dll into your project directory
4. Run your project: crystal run YOUR_PROGRAM.cr

Contributing

1. Fork it (https://github.com/gosu/gosu.cr/fork)
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request

Contributors

• Cyberarm - creator and maintainer