Re: 2D vectors

[Roland <roland.yonaba@...>]

Hi Lars,

I don't know if you are looking for a solution on the C-side, but I remember
I have some implementations of vector classes in pure Lua. They might not be
the best, but just quick modules I have written as part of some personal
projects.
See  vec3.lua
<https://github.com/Yonaba/smallpt-lua/blob/e1e6831394229a6780d5a7c0d428e102e97fcf2f/core/vec3.lua>  
(used in Lua port of Smallpt raytracer) and  vector.lua
<https://github.com/Yonaba/character-physics-demo/blob/5689eabec224e572c686a0fc0e72360e11ba9a32/vector.lua>  
(2d vectors used in a simulation of steering behaviors).
There is also this quite complete and clean module for 2d vectors, which is
part of a larger set of utilities, named HUMP. See  hump.vector
<https://github.com/vrld/hump/blob/master/vector.lua>  .
And last,  lua-vec <https://code.google.com/p/lua-vec/>  . I haven't tested
this out, though,  but the API looks quite complete.




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