Basic Miner

--Remember to fuel up the turtle first and equip a the right tool for the job--
x = 10

y = 10

z = 10

turn = false
up = false
for z = 1, x do
    if (up) then
        turtle.digDown()
        turtle.down()
        turtle.turnLeft()
        turtle.turnLeft()
    end
    up = true
    yk = false
    for y = 1, y do
        if (yk) then
            if (turn) then
                turtle.turnLeft()
                turtle.dig()
                turtle.forward()
                turtle.turnLeft()
                turn = false
            else
                turtle.turnRight()
                turtle.dig()
                turtle.forward()
                turtle.turnRight()
                turn = true
            end
        end
        yk = true
        xk = false
        for x = 1, x do
            if (xk) then
                turtle.dig()
                turtle.forward()
            end
            xk = true
        end
    end
end