Agile 2D game development using Ruby
Star Ruby enables users to use Ruby to develop SNES-like (Super Nintendo Entertainment System) 2D game quickly and easily.
Star Ruby's APIs are simple and easy to learn.
Rich rendering effect
Color changing effects such as subtraction, addition, saturation and hue are supported. Needless to say, geometrical transformation such as scaling and rotating are also supported.
Perspective projection rendering
Star Ruby can easily handle perspective projection which was used by SNES games (Mario cart, F-ZERO, FF6 etc.). This is a unique feature that is not present in most other 2D game libraries.
Textures
Star Ruby regards objects related to the rendering process as "Textures". For example, PNG images, output screen and buffers are all regarded as "Textures" in Star Ruby. So what all you have to do is always "render Texture on Texture". You can choose rendering options such as alpha blending when you render "Textures".
All "Textures" are full-color 32-bit bitmaps with 8-bit alpha. You can also output textures as PNG images.
Text output
By using TTF files, you can render text on "Textures". You can also choose anti-alising as an option.
Free resolution
The resolution of the screen can be adjusted freely.
You can also double the size of the screen while keeping the resolution of it.
Input
Keyboard, gamepad and mouse can be used as default inputs.
Key-repeat is supported.
Sound
OGG and WAV formats are supported.
High-performance
Star Ruby is written by C, therefore it can render efficiently even without the use any graphic accelerators. It's performance rate is suitable for programming 2D games.
Cross-platform
Star Ruby runs on Windows, Linux and Mac OS X.
Combinations with other libraries
Each class is designed so that they can be used independently.
For example, you can render Star Ruby textures on the window of Ruby-GNOME2.
Open source
MIT License.