eggcollect

-- Egg Collrector program
-- By Al Sweigart
-- al@inventwithpython.com
-- Collects eggs in a field.

--[[
IMPORTANT NOTE!!!
Planted potatoes in the game world are
named 'minecraft:potatoes' but potatoes
in your inventory are called
'minecraft:potato'
]]

os.loadAPI('hare')

local cliArgs = {...}
local rowsArg = tonumber(cliArgs[1])
local columnsArg = tonumber(cliArgs[2])

if columnsArg == nil then
  print('Usage: eggcollect rows columns')
  return
end


function storeItems()
  if not hare.findBlock('minecraft:chest') then -- face the chest
    print('Warning: Could not find chest.')
    return
  end

  -- drop off items
  local slot
  for slot=1,16 do
    turtle.select(slot)
    turtle.drop()
  end

  -- face field again
  turtle.turnLeft()
  turtle.turnLeft()
end


print('Hold Ctrl+T to stop.')
if not hare.findBlock('minecraft:chest') then
  print('ERROR: Must start next to a chest!')
end

-- face field
turtle.turnLeft()
turtle.turnLeft()

while true do
  -- check fuel
  if turtle.getFuelLevel() < (rowsArg * columnsArg) + rowsArg + columnsArg then
    print('ERROR: Not enough fuel.')
    return
  end

  -- farm potatoes
  print('Sweeping field...')
  hare.sweepField(rowsArg, columnsArg, turtle.suckDown, storeItems)

  print('Sleeping for 5 minutes...')
  os.sleep(300)
end