ExMa2D (C++14 library)

ExMa2D is a tiny external math library for 2D.

Features

no dependencies you have to take care about

We internally use cppDegRag for user-defined literals of angles. Also, for tests we use MosquitoNet.

Both of these are header-only and they are present in the repo as submodules, so you don't have to explicitly take care of them.

header-only

Yes, it takes a bit of compile-time, but that's the price for templates. It's easier to set up the library as well!

templated help functions for your 2D vector class

These functions work on any vector class which has public x and y members, and can be initialized via argument list. For instance:

struct VectorF
{
    float x, y;
};

Example

#include "exma2D/vector2D.hpp"
using namespace exma::vector;

struct VectorF
{
    float x, y;
};

constexpr VectorF vec{2.f, 5.f};
constexpr VectorF origin{0.f, 0.f};

constexpr auto crazy = -perpendicule(vec)
constexpr auto silly = project(crazy, vec) * 3;
constexpr auto crazy_silly = reflect(crazy, silly);
auto go_round = rotate(crazy_silly, origin, 180_deg);

auto length = len(go_round);
constexpr auto dot_product = dot(crazy, silly);

Requirements

• C++14 compiler

Tested with g++ 5.2.1 and clang 3.6.2

License

ExMa2D is licensed under zlib/libpng. You can use it in your projects, no matter whether they are free, commercial, open-source or closed-sourced.

It would be nice if you mentioned somewhere in your project description or documentation (or anywhere else) that you're using ExMa2D, but you're not legally obliged to do so.