Touch Screen Menu

local screen = peripheral.wrap("right")
local monX, monY = screen.getSize()
local title = "Touch Menu"
local mnui1 = "Bread"
local mnui2 = "Hotdog"

function ServeMenu()
    screen.clear()
    screen.setCursorPos(1,1)
    screen.write(title)

    screen.setCursorPos(1,2)
    screen.write("----------")
    screen.setCursorPos(3,3)
    screen.write(mnui1)
    screen.setCursorPos(1,4)
    screen.write("----------")

    screen.setCursorPos(12, 2)
    screen.write("----------")
    screen.setCursorPos(14, 3)
    screen.write(mnui2)
    screen.setCursorPos(12, 4)
    screen.write("----------")

    local event, side, x, y = os.pullEvent("monitor_touch")

    if event then
        screen.clear()
        screen.setCursorPos(1,1)
        if y == 2 then
            if     x >= 1 and x < 10 then
                screen.write("Bread touched")
                sleep(2)
            elseif x >= 11 and x < 20 then
                screen.write("Hotdog touched")
                sleep(2)
            end
        end
    end

    ServeMenu()
end

ServeMenu()