Raycastlib

   Raycastlib (RCL) is a [1]public domain ([2]CC0) [3]LRS [4]C [5]library for
   advanced 2D [6]raycasting, i.e. [7]"2.5D/pseudo3D" [8]rendering. It was
   made by [9]drummyfish, initially as an experiment for [10]Pokitto -- later
   he utilized the library in his game [11]Anarch. It is in spirit similar to
   his other LRS libraries such as [12]small3dlib and [13]tinyphysicsengine;
   just as those raycastlib is [14]kept extremely simple, it is written in
   pure C99, with zero dependencies (not even [15]standard library), it's
   written as a single file single header library, using no [16]floating
   point and tested to run interactively even on very weak devices
   (simplified version was made run on [17]Arduboy with some 2 KiB of RAM).
   It is very flexible thanks to use of [18]callbacks for communication,
   allowing e.g. programming arbitrary "[19]shader" code to implement all
   kinds of effects the user desires or using [20]procedurally generated
   environments without having to store any data. The library implements
   advanced features such as floor and ceiling with different heights,
   textured floor, opening door, simple [21]collision detection etc. It is
   written in just a bit over 2000 [22]lines of code.

   The repository is available at https://codeberg.org/drummyfish/raycastlib.

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   Simple rendering made with raycastlib.

Links:
1. public_domain.md
2. cc0.md
3. lrs.md
4. c.md
5. library.md
6. raycasting.md
7. pseudo3d.md
8. 3d_rendering.md
9. drummyfish.md
10. pokitto.md
11. anarch.md
12. small3dlib.md
13. tinyphysicsengine.md
14. KISS.md
15. stdlib.md
16. float.md
17. arduboy.md
18. callback.md
19. shader.md
20. procgen.md
21. collision_detection.md
22. loc.md