raylib-raku (Raylib::Bindings)

Autogenerated raylib-raku bindings, powered by raku grammar and actions.

Preface

To make Raku play together with Raylib, many of Raylib's functions has to be wrapped into a function, to support pass as pointer meaning we are "pointerizing" the functions. This is done automatically when generating the bindings. The bindings are also converted to kebab-case to fit Raku code style.

On installation:

• Generator.rakumod is fed raylib.h which gets parsed and translated via grammar and actions to Raku and C code.
• Bindings.rakumod will be generated and placed into lib/Raylib
• The pointerization and allocation C code gets compiled to be used by Raylib::Bindings.

Raylib::Bindings comes with support for malloc-ing Raylib structs,

Example the code below will allocate Color as a pointer.
my $white = Color.init(245, 245, 245, 255);

Almost all struct/class in Raylib::Bindings are equipped with an init function,
which mallocs.
Manually calling free isn't necessary, since every struct/class are also equipped with a free on destroy mechanism and gets handled by the GC. Here is the DESTROY method of Color

submethod DESTROY {
    free-Color(self);
}

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Prerequisite

install raylib from:

https://github.com/raysan5/raylib

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Install

zef install Raylib::Bindings

Install from repository

git clone git@github.com:vushu/raylib-raku.git
cd raylib-raku 
zef install .

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Examples

raku examples/window.raku
raku examples/flying-butterfly.raku
raku examples/rotating-butterfly.raku
raku examples/3d-camera.raku

Mutable strings

To parse mutable string use CArray[uint8] important to encode it as utf-8 Example:

# .encode takes care of UTF-8 encoding. If $array is used 
# as a string by the native function, don't forget to append the 
# NULL byte that terminates a C string: ---------v 
my $array = CArray[uint8].new("Foo".encode.list, 0);

More examples at

https://www.raylib.com/examples.html

Cheatsheet

https://www.raylib.com/cheatsheet/cheatsheet.html

Wiki

https://github.com/raysan5/raylib/wiki

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Screenshots

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Missing:

• code comments needs to be included.
• support for windows.

Problem on some callbacks

example for set-audio-stream-callback: the following happens:

MoarVM panic: native callback ran on thread (some-thread-id) unknown to MoarVM

Solution yet to be found.

help is appreciated!