jannis test2

function MoveForward()
    while(turtle.forward() == false) do
        turtle.dig()
    end
end

function MoveDown()
    while(turtle.down() == false) do
        turtle.digDown()
    end
end

function MoveUp()
    while(turtle.up() == false) do
        turtle.digUp()
    end
end


function PlaceUp()
    turtle.placeUp()
end

function TurnRight()
    turtle.turnRight()
end

function TurnLeft()
    turtle.turnLeft()
end

function Place1stChunk()
    MoveDown()
    turtle.select(1)
    PlaceUp()
    TurnRight()
    MoveForward()
    MoveUp()
    TurnRight()
    Dig()
    TurnRight()
    TurnRight()
    MoveForward()
    TurnLeft()
    MoveForward()
    TurnRight()
end


function Go()
    for i = 1 , 14 do
        MoveForward()
    end
end

function Place()
    turtle.place()
end

function Dig()
    turtle.dig()
end

function Place2ndChunk()
    TurnRight()
    MoveForward()
    TurnLeft()
    Dig()
    turtle.select(1)
    Place()
    TurnLeft()
    MoveForward()
    TurnLeft()
    TurnLeft()
    Place()
    TurnRight()
end

function RetrieveChunk()
    Go()
    Dig()
    TurnLeft()
    TurnLeft()
    MoveForward()
    Go()
end

function DigUp()
    while(turtle.detectUp() == true) do
        turtle.digUp()
    end
end

function DumpInv()
    DigUp()
    turtle.select(2)
    turtle.placeUp()
    for i = 3,15 do
        turtle.select(i)
        turtle.dropUp()
    end
    turtle.select(2)
    turtle.digUp()
    turtle.suckUp()
end

function GetFuelFromChest()
  turtle.select(2)
  DigUp()
  turtle.placeUp()
  turtle.select(16)
  turtle.dropUp()
  turtle.suckUp()
  turtle.select(2)
  turtle.digUp()
  turtle.suckUp()
end

function CheckFuel()
  if turtle.getFuelLevel() <= 20 then
    turtle.select(16)
    turtle.refuel(5)
  end
  if turtle.getFuelLevel() <= 1 then
    GetFuelFromChest()
    CheckFuel()
  end
  return true
end

function main()
    while(true) do
        CheckFuel()
        Place1stChunk()
        Go()
        Place2ndChunk()
        RetrieveChunk()
        DumpInv()
    end
end

main()