testbasicstrip

print ("Please put COAL in slot 1 and COBBLESTONE or COBBLED DEEPSPATE in slot 2")
print ("How long should each strip be?")
length = tonumber(read())
print("How far apart should the strips be?")
gap = tonumber(read())
gap = gap + 1

function gravelproof()
    local isblock, block = turtle.inspect()
    if (block.name == "minecraft:gravel") then
        turtle.dig()
        gravelproof()
    end
end

function digForwards()
    if( turtle.getFuelLevel() > 50 )
    then
        turtle.dig()
        gravelproof()
        turtle.forward()
        turtle.digUp()
        turtle.select(2)
        turtle.placeDown()
    else
        turtle.select(1)
        turtle.refuel(5)
        digForwards()
    end
end

function loop(a,b)
    x=0
    while( x < b ) do
        a()
        x = x + 1
    end
end

while true do
    loop(digForwards,length)
    turtle.turnLeft()
    loop(digForwards,gap)
    turtle.turnLeft()
    loop(digForwards,length)
    turtle.turnLeft()
    loop(digForwards,gap)
    turtle.turnLeft()
    turtle.turnLeft()
    loop(turtle.forward,gap)
    loop(digForwards,gap)
    turtle.turnRight()
end