cray-raygui

Raygui bindings for Crystal, meant to be used with cray library. Cray is Raylib bindings.

Installation

Add this to your application's shard.yml:

dependencies:
  cray-raygui:
    gitlab: TeddyDD/cray-raygui
    branch: raylib-2

Usage

require "cray"
require "cray_raygui"

TODO: Write usage instructions here

Development

Bindings are generated using libgen tool. Generating bindings from scratch is manual process for simplicity. Fortunetly, for normal usage it is not required, and small chagnes in Raygui could be covered manually on bindigs side.

It looks like this:

1. Install and build libgen: https://github.com/olbat/libgen
2. Download Raygui and copy src/raygui.h to src/cray_raygui/raygui.h
3. Modify raygui.h: replace #define RAYGUI_STANDALONE with

#define RAYGUI_IMPLEMENTATION
#define RAYGUI_STYLE_SAVE_LOAD

4. Generate bindings using libgen: libgen ./lib-raygui.yml
5. libgen will create two files in src/cray_raygui

• generated/cray_raygui/application.cr
• generated/cray_raygui/cray_raygui.cr

6. Now you have to combine functions from those files into single src/cray_raygui/gui.cr file. Beware of duplicates. Don't copy type definitions, they are declared in LibRay in cray.
7. Fix type names (Rectangle -> LibRay::Rectangle, same for Vector2, Color)
8. Remove generated files
9. Remove gui_ prefixes from gui.cr, who needs that?
10. Bind load/save functions manually (src/cray_raygui/load_save.cr)
11. Create enums definitions in src/cray_raylib/enums.cr

As you can see process of generating bindings from scratch is quite complicated. It's not needed for using library, and in the future I might write script to automate it.

Contributing

1. Fork it (https://gitlab.com/TeddyDD/cray-raygui/fork)
2. Create your feature branch (git checkout -b my-new-feature)
3. Format crystal files with crystal tool format **.cr
4. Commit your changes (git commit -am 'Add some feature')
5. Push to the branch (git push origin my-new-feature)
6. Create a new Pull Request

Contributors

• TeddyDD Daniel Lewan - creator, maintainer