xyzminer

function startup()
    print("Enter width: ")
    xin = read()
    x = tonumber(xin)

    print("Enter length: ")
    zin = read()
    z = tonumber(zin)

    print("Up or down?")
    inupdown = read()

    print("Enter height: ")
    yin = read()
    y = tonumber(yin)

    turtle.select(1)
    turtle.refuel()

    return x, y, z, inupdown
end

function width(x)
    print(x)
    if x == 1 then
        print("Do nothing")
    else
        turtle.turnRight()
        for i = 2, x do
            if turtle.detect() then
                repeat
                    turtle.dig()
                    local success, digdig = turtle.detect()
                until(success == false)
            end
            turtle.forward()
        end
        turtle.turnRight()
        turtle.turnRight()
        for i = 2, x do
            turtle.forward()
        end
        turtle.turnRight()
    end
end

function length(z)
    if z == 1 then
        print("Do nothing")
    else
        if turtle.detect() then
            repeat
                turtle.dig()
                local success, digdig = turtle.detect()
            until(success == false)
        end
        turtle.forward()
    end
end

function height(y, inupdown)
    if y == 1 then
        print("Do nothing")
    elseif inupdown == "Up" or inupdown == "up" then
        turtle.digUp()
        turtle.up()
    elseif inupdown == "Down" or inupdown == "down" then
        turtle.digDown()
        turtle.down()
    end
end

function length_return(z)
    if z == 1 then
        print("Do nothing")
    else
        turtle.turnRight()
        turtle.turnRight()
        for i = 2, z do
            turtle.forward()
        end
        turtle.turnRight()
        turtle.turnRight()
    end
end

function height_return(y)
    if y == 1 then
        print("Do nothing")
    else
        for i = 2, y do
            turtle.down()
        end
    end
end


function main(x, y, z, inupdown)
    for h = 0, y - 1 do
        for i = 0, z - 1 do
            width(x)
            if i < z - 1 then
                length(z)
            end
        end
        if h < y - 1 then
            length_return(z)
            height(y, inupdown)
        end
    end
    height_return(y)
end



x, y, z, inupdown = startup()
main(x, y, z, inupdown)