cave 2.0

function checkFuel()

currentFuel = turtle.getFuelLevel()
currentSlot = turtle.getSelectedSlot()

if turtle.getFuelLevel() < 1 then
  for slot = 1,16 do
    if turtle.refuel() then
      return true, "Fueled"
        elseif slot == 16 then
          return false, "No fuel left"
          end
       end
    else
      print("there is still "..currentFuel.." Fuel left")
      return false
  end
end

checkFuel()

function askLenght()

print("Choose the lenght of the cave")

term.write("enter a number between 1-10: ")
caveLenght = tonumber(read())

if caveLenght == nil or caveLenght == string then
  print("Please enter a valid value")
  askLenght()

elseif caveLenght < 1 or caveLenght > 10 then
    print("Number must be between 1-10")
    askLenght()
else
  print("Cavelenght = "..caveLenght)
  end
 end

function askWide()

print("Choose the Wide of the cave")

term.write("enter a number between 1-10: ")
caveWide = tonumber(read())

if caveWide == nil or caveWide == string then
  print("Please enter a valid value")
  askWide()

elseif caveWide < 1 or caveWide > 10 then
    print("Number must be between 1-10")
    askWide()
else
  print("CaveWide = "..caveWide)
  end
 end


function askDepth()

print("Choose the depth of the cave")

term.write("enter a number between 1-10: ")
caveDepth = tonumber(read())

if caveDepth == nil or caveDepth == string then
  print("Please enter a valid value")
  askDepth()


elseif caveDepth < 1 or caveDepth > 10 then
    print("Number must be between 1-10")
    askDepth()


else  print("Cavedepth = "..caveDepth)
  end
 end

function cave()
checkFuel()
 print("Making a cave "..caveLenght.." long "..caveWide.." wide "..caveDepth.." deep ")

for depth = 1, caveDepth do
    turtle.digDown()
    turtle.down()
    checkFuel()

for wide = 1, caveWide do

    for lenght = 1, caveLenght do
        turtle.dig()
        turtle.forward()
    end

if wide %2 == 0 and wide < caveWide then
  turtle.turnRight()
  turtle.dig()
  turtle.forward()
  turtle.turnRight()
elseif wide %2 ~= 0 and wide < caveWide then
  turtle.turnLeft()
  turtle.dig()
  turtle.forward()
  turtle.turnLeft()
  end
end

if caveWide % 2 == 0 then
  turtle.turnLeft()
    for backWideeven = 1, caveWide do
      turtle.forward()
      end
  turtle.turnLeft()

elseif caveWide == 1 then

  for backoneLenght = 1, caveLenght() do
    turtle.back()
    end


 elseif caveWide % 2 ~= 0 then
    for backLenght = 1,caveLenght do
      turtle.back()
    end

    turtle.turnRight()

    for backWide = 1,caveWide do
      turtle.forward()
      end

    turtle.turnLeft()
end


if depth == caveDepth then
  for backup = 1, caveDepth do
    turtle.up()
    end
  end
end
end

askLenght()
askWide()
askDepth()
    cave()