vector_math

Crystal library for basic 2D, 3D, and 4D vector and matrix math.

It's currently quite small, but includes:

• Everything is a struct, so everything happens on the stack
• Completely immutable, so behavior is easy to reason about
• Operator overloading for +, -, * and /
• Rotation and translation helpers for 4D matrices

Installation

1. Add the dependency to your shard.yml:

dependencies:
  vector_math:
    github: ajselvig/crystal_vector_math

2. Run shards install

Usage

require "vector_math"
include VectorMath

# 2D vectors
vec2(1.0, 2.0) + vec2(3.0, 4.0)
# => [4.0, 6.0]
vec2(2.0, 4.0, 6.0) / 2
# => [1.0, 2.0, 3.0]

Contributing

1. Fork it (https://github.com/ajselvig/crystal_vector_math/fork)
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request

Contributors

• Andy Selvig - creator and maintainer