HarvestCraft farm OpenComputers

local robot = require("robot")
local comp = require("computer")

-- vsya dlina polya pered robotom
local vper = 10
-- vsya shirina polya
local shir = 5

function harvest()
-- Vhod na pole
  robot.forward()
-- po shirine
  for y=1, (shir-1) do
    -- harvest one line
    robot.useDown()
    robot.suckDown()
    for x=1, (vper-1) do
      robot.forward()
      robot.useDown()
      robot.suckDown()
    end
        -- povorot
        --esli y nechetnoe to
    if y%2 == 1 then
          robot.turnLeft()
          robot.forward()
          robot.turnLeft()
        else
          robot.turnRight()
          robot.forward()
          robot.turnRight()
        end
  end
  -- na posledneij linii
for x=1, (vper-1) do
      robot.forward()
      robot.useDown()
      robot.suckDown()
    end
  -- vozvrat
       if shir%2 == 1 then
       robot.turnRight()
         while robot.detect()==false do
         robot.forward()
         end
       robot.turnRight()
           while robot.detect()==false do
           robot.forward()
           end
       else
       robot.turnLeft()
           while robot.detect()==false do
           robot.forward()
           end
       robot.turnRight()
       robot.forward()
       end
end

function unload()
  for c = 1, 32 do
    robot.select(c)
    robot.drop()
    end
  end
  robot.turnAround()
end

while true do
  harvest()
  unload()
  print('sleep')
  -- one hour sleeping
  os.sleep(3600)
end