raycastlib

Ray casting library for (not only) limited-resource computers.

Take a look at my Pokitto demos repository, it contains some better code for learning the usage, including a very simple hello world.

eye-candy previews

Pokitto:

SDL:

Arduboy:

terminal:

Gamebuino META (quick and dirty port):

features

• Very fast, small and efficient.
• Uses only integer math.
• No dependencies (uses only stdint standard library).
• Single header, KISS.
• Advanced rendering of variable height floor and ceiling.
• Textured walls and floor.
• Depth information (for fog).
• Camera shearing (looking up/down).
• Camera movement with collisions.
• Support for opening door.
• Pure C, tested to run as C++ as well.
• Optional framework functions that handle the whole rendering.
• Still flexible -- pixels are left for you to draw in any way you want.
• Tested on multiple platforms (PC, Arduboy, Pokitto).
• Many compile-time options to tune the performance vs quality.
• Well commented code.

NOTE: Backwards compatibility isn't a goal of this libraray. It is meant to be an as-is set of tools that the users is welcome to adjust for their specific project. So new features will be preferred to keeping the same interface.

TODO

• Transparency (conditional ray passing through).
• Doors in the middle of squares.
• Rolling doors for RCL_renderComplex.
• Possibly merge all rendering functions into one.

license

Everything is CC0 1.0. Please share your own software as free and open-source.