<p align="center">
    <img src="img/kayak.svg" alt="Kayak UI" width="600" />
</p>
<br/>

# Introduction

Kayak UI is a declarative UI that can be used to make user interfaces in Rust primarily targeting games. It's free and open-source!

## Features
- Full integration into Bevy ECS.
- Easy to use declarative syntax using a custom proc macro
- Basic widget, global, and context state management
- Input events (Mouse, Keyboard, Char)
- Fast and accurate layouts using morphorm: https://github.com/geom3trik/morphorm
- A few default widgets (check out Kayak's [built-in widgets](https://github.com/StarArawn/kayak_ui/tree/main/src/widgets)!)
- Style system built to kind of mimic CSS styles.
- Image and Nine patch rendering.
- Widget and Tree diff based updating


## This book
In this book you'll be learning:
- How to use widgets.
- How to create custom widgets.
- Accessing bevy data from a widget.
- Handling widget updates.

And more! 

## License
Copyright © 2021-2022 John Mitchell.

All code in the book is provided under the MIT-0 License. At your option, you may also use it under the regular MIT License.

The text of the book is provided under the CC BY-NC-SA 4.0.

## Contributions
Development of this book is hosted on GitHub.

Please file GitHub Issues for any wrong/confusing/misleading information, as well as suggestions for new content you'd like to be added to the book.