FarmTrtl

function farm()
  turtle.digDown()
  turtle.placeDown()
end

os.loadAPI("trtlAPI")

xPos,yPos,zPos = 0,0,0
xDir,zDir = 0,-1
order = {"x","z","y"}
force = false
p = {}
i = 0
key = false
start = false

os.startTimer(60)
while true do
  e,p = os.pullEvent()

  if e == "timer" then
    i = i + 1
    term.clear()
    term.setCursorPos(1,1)
    print("Minutes: "..i)
    print("Will farm after 40 minutes")
    if i < 40 then
      os.startTimer(60)
    end
  end

  if e == "key" then
    if key == false then
      term.clear()
      term.setCursorPos(1,1)
      print("Press ANY KEY to start")
      key = true
    else
      key = false
      start = true
    end
  end

  if i == 40 or start == true then
    i = 0
    start = false
    yPos = trtlAPI.goUp(yPos,force)
    xPos,zPos = trtlAPI.goForward(xPos,zPos,xDir,zDir,force)
    for i=1,12 do
      for j=1,26 do
        farm()
        xPos,zPos = trtlAPI.goForward(xPos,zPos,xDir,zDir,force)
      end
      farm()

      if i ~= 12 then
        if zDir == -1 then
          xDir,zDir = trtlAPI.turnLeft(xDir,zDir)
          xPos,zPos = trtlAPI.goForward(xPos,zPos,xDir,zDir,force)
          farm()
          xDir,zDir = trtlAPI.turnLeft(xDir,zDir)
        else
          xDir,zDir = trtlAPI.turnRight(xDir,zDir)
          xPos,zPos = trtlAPI.goForward(xPos,zPos,xDir,zDir,force)
          farm()
          xDir,zDir = trtlAPI.turnRight(xDir,zDir)
        end
      end
    end
    xPos,yPos,zPos,xDir,zDir = trtlAPI.goto(0,0,0,0,1,xPos,yPos,zPos,xDir,zDir,force,order)
    for i=2,16 do
      if turtle.getItemCount(i) ~= 0 then
        turtle.select(i)
        turtle.drop()
      end
    end
    turtle.select(1)
    xDir,zDir = trtlAPI.turnRight(xDir,zDir)
    xDir,zDir = trtlAPI.turnRight(xDir,zDir)
    os.startTimer(60)
  end
end