hexagon.lua

Hexagon = {}

function Hexagon:new(x, y, height)
  obj = {}
  setmetatable(obj, self)
  self.__index = self

  obj.x = x
  obj.y = y
  obj.height = height
  obj:generate_points()

  return obj
end

function Hexagon:generate_points()
  local h = self
  h.l  = (h.height / 2) / math.sin(45)
  h.dX = math.cos(45) * h.l
  h.dY = math.sin(45) * h.l
  h.cX = h.dX + (h.l / 2)
  h.cY = h.dY
  h.vertices = {
      0,                 h.dY
    , h.dX,              0
    , h.dX + h.l,        0
    , h.dX + h.l + h.dX, h.dY
    , h.dX + h.l,        h.dY + h.dY
    , h.dX,              h.dY + h.dY
  }
end

function Hexagon:update()
  local h = self
  local n

  h.drawVertices = {}
  for i, v in ipairs(h.vertices) do
    if i % 2 == 1 then
      n = h.x + v - h.cX
    else
      n = h.y + v - h.cY
    end

    table.insert(h.drawVertices, n)
  end
end

function Hexagon:draw()
  local h = self
  love.graphics.polygon('line', h.drawVertices)
end

main.lua

require("hexagon")

function love.load()
  hex = Hexagon:new(300, 300, 50)
end

function love.update(dt)
  hex:update()
end

function love.draw()
  love.graphics.print("Current FPS: " .. tostring(love.timer.getFPS()), 10, 10)
  love.graphics.point(300, 300)
  hex:draw()
end