Refuelling Test

fuelSaid = false
fuelYes = "Cabbages"

function fuelCheck()
    fuelLevel = turtle.getFuelLevel()
    while not(fuelLevel > 0) do
        if fuelSaid == false then
            fuelSaidCheck()
            hasFuel = true
        end
        shell.run("refuel all")
        fuelLevel = turtle.getFuelLevel()
    end
    if hasFuel == true then
        shell.run("clear")
        print("I'm Ready, Master. Type: 'Go' to Start")
        fuelGoCheck = read()
        fuelGo()
    end
    shell.run("clear")
    hasFuel = false
    fuelSaid = false
end

function fuelGo()
    while not(fuelGoCheck == "Go") do
        print("ERROR! Please try Again")
        print("Once I have Fuel Type: 'Go'")
        fuelGoCheck = read()
        shell.run("clear")
    end
end

function fuelAdded()
    while not(fuelYes == "Y") do
        shell.run("clear")
        print("ERROR! Please try Again")
        print("Once I have Fuel, Type: 'Y'")
        fuelYes = read()
    end
end

function fuelSaidCheck()
    shell.run("clear")
    print("I need Fuel, Master.")
    print("Once I have Fuel Type: 'Y'")
    fuelYes = read()
    fuelAdded()
end

while true do
  fuelCheck()
end