test.lua

local event = require("event")
local component = require("component")
local Button = require("button")
local gpu = component.gpu
gpu.setResolution(160, 50)
-- gpu.setResolution(80,25)
local w, h = gpu.getResolution()
local backgroundColor = 0x696969
local sizes = {}
local buttons = {}

function fillBackground(color)
  gpu.setForeground(0x000000)
  gpu.setBackground(color)
  gpu.fill(1, 1, w, h, " ")
end

function calculateSize()
 sizes.buttonWidth = math.floor(w/3)
 sizes.buttonHeight = math.floor(h/5)
 sizes.buttonColumnGap = math.floor(w/8)
 sizes.buttonRowGap = math.floor(h/15)
end

--only on startup
function start()
  fillBackground(backgroundColor)
  calculateSize()
 -- drawRectangleWithText(6, 4, 70, 10, 0xffffc0, 0xffff80, 1, "Sand")
 -- drawRectangleWithText(6, 17, 70, 10, 0x5a5a5a, 0x4b4b4b, 1, "Gravel")
 -- drawRectangleWithText(6, 30, 70, 10, 0xf0f0f0, 0xffffc0, 1, "Dust")
 -- drawRectangleWithText(86, 4, 70, 10, 0x332400, 0x330000, 1, "Soulsand")
 -- drawRectangleWithText(86, 17, 70, 10, 0x990000, 0x660000, 1, "Netherrack")
 -- drawRectangleWithText(86, 30, 70, 10, 0xccc0db, 0xccc0ff, 1, "Endstone")
  local gravel = Button:new{
    x = sizes.buttonColumnGap,
    y = sizes.buttonRowGap,
    width = sizes.buttonWidth,
    height = sizes.buttonHeight,
    borderColor = 0x4b4b4b,
    fillColor = 0x5a5a5a,
    text = "Gravel"
  }
  local
  table.insert(buttons, gravel)
  buttons[1]:draw()
end

--actions when running
function update()
  repeat
    local ev, _, x, y, user = event.pull()
    if ev == "touch" then
     print(#buttons)
     print(buttons[1]:checkClick(x, y))
    end
  until false
end


start()
update()