App

To install the appstore app, right-click on your turtle to open the GUI, run pastebin get iXRkjNsG appstore. To install buildcheckerboard, run appstore get AlSweigart buildcheckerboard.

Builds a checkeboard floor out of coal and quartz blocks.

This program is used in Chapter 13 of Coding with Minecraft. You can view it at https://turtleappstore.com/book/chapter13.html

Free to copy under a Creative Commons BY-NC-SA license.

-- https://turtleappstore.com/u/AlSweigart/a/buildcheckerboard
--[[Checkerboard-Building program by Al Sweigart
Builds a checkerboard floor.]]

os.loadAPI('hare')

-- handle command line arguments
local cliArgs = {...}
local length = tonumber(cliArgs[1])
local width = tonumber(cliArgs[2])

if length == nil or width == nil or cliArgs[1] == '?' then
  print('Usage: buildcheckerboard <length> <width>')
  return
end

local placeBlack = true

function placeCheckerboard()
  -- select coal or quartz, based on placeBlack
  if placeBlack then
    hare.selectItem('minecraft:coal_block')
  else
    hare.selectItem('minecraft:quartz_block')
  end

  turtle.placeDown()
  placeBlack = not placeBlack
end

turtle.up()
hare.sweepField(length, width, placeCheckerboard)