hex.lua

INTRODUCTION [1.1]

this is a library for using hexagonal grids in amulet/lua. it is extremely incomplete. the following list of features is either implemented shoddily, or not at all.

if you want an actual good resource, go to [1.9].

GETTING STARTED [1.2]

//TODO

COORDINATE SYSTEMS [1.3]

as much coordinate manipulation as possible is done internally. depending on the task, uses either Axial, Cube, or Doubled coordinates.

three different ways of returning and sending coordinates:

• amulet vectors
• lua tables
• individual coordinate numbers

so you can use what your graphics library likes best!

MAPS & MAP STORAGE [1.4]

Some map shapes: parallelogram, rectangular, hexagonal, triangular. (and more)

• storage system based on map shape - see chart:

:SHAPE:	:MAP STORAGE:
parallelogram	unordered, hash-like OR ordered, array-like
rectangular	unordered, hash-like OR ordered, array-like
hexagonal	unordered, hash-like OR ordered, array-like
triangular	unordered, hash-like OR ordered, array-like
ring	ordered, array-like
spiral	ordered, array-like**
arbitrary	unordered, hash-like

** note that a spiral map is just a hexagonal one with a particular order.

CONVENTIONS AND TERMINOLOGY [1.8]

because so many different kinds of coordinate pairs, trios

RESOURCES USED TO DEVELOP THIS LIBRARY, AND FOR WHICH I AM GRATEFUL [1.9]

• Hex Map 1 - unity tutorial for hexagon grids with some useful generalized math.

• 3Blue1Brown - Essence of Linear Algebra - amazing series on linear algebra by 3Blue1Brown

• Hexagonal Grids - THE resource on hexagonal grids on the internet.

• Amulet Docs - amulet documentation.