Computer Craft menu system theme, simple and smart

        --[[    Comment     ]]--
--[[
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
X Simple menu. / Egyszeru Menu                       X
X Youtube video: http://youtu.be/AU48NSPl4rM   X
X Please like and subscribe! Thank U and have a nice X
X day!                                               X
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
]]--


        --[[    Local Variables     ]]--
local termWidth, termHeight = term.getSize()
local selectedItem = 1
local runing = true



        --[[    Menu Metods     ]]--
function Choice1( ... )
    print("Hello World")
    clear()
    read("")
end

function Choice2( ... )
    -- second menu function
end

function readme( ... )
    clear()
    print([[If U like this menu system
please subscribe
my YT chanel:
youtube.com/c/DelfaverMatteo_Games

Ha tetszett a program kerlek
iratkozz fel a csatornamra!
YT: youtube.com/c/DelfaverMatteo_Games

Thank U, Koszi ;)

Press enter to continue
]])
    read("")
end

function exit( ... )    --exit menu function
    runing = false
end



        --[[    Men Definitions     ]]--
--[[
EN
Menus, if U need more menu options, just continue the lines, like the basic lines.
sample: [4] = { text = "Manu name here", handler = "function name here (Menu Metods)"},
HUN
Menuk, ha tobb menupontot szeretnel, csak folytasd a sorokat, ugy mint a tobbi sor van.
pelda: [4] = { text = "Menu elnevezese", handler = "function neve (Menu Metods- resz)"},
]]
local mainMenu = {
    [1] = { text = "Choice1", handler = Choice1},
    [2] = { text = "Choice2", handler = Choice2},
    [3] = { text = "ReadME", handler = readme},
    [4] = { text = "Exit", handler = exit},

}
--[[
EN
if U change menu position, just chane the two number ( 10 and 5) like this: term.setCursorPos(1, (i+0))
this position is the 1, 1. Monitor left up side.
HUN
Ha változtatni szeretned a menu poziciojat, csak 2 számot kell atirj ( 10 es 5) pelda: term.setCursorPos(1, (i+0))
ez a pozicio a monitor bal felso sarka 1, 1

function printMenu( menu )
    for i=1,#menu do
        if i == selectedItem then
            term.setCursorPos(1, i)
            print(">> " .. menu[i].text .. " <<")
        else
            term.setCursorPos(1, i)
            print("   " .. menu[i].text)
        end
    end
end
]]
function printMenu( menu )
    for i=1,#menu do
        if i == selectedItem then
            term.setCursorPos(10, (i+5))
            print(">> " .. menu[i].text .. " <<")
        else
            term.setCursorPos(10, (i+5))
            print("   " .. menu[i].text)
        end
    end
end



        --[[    Handler Method      ]]--
function onKeyPressed( key, menu )
    if key == keys.enter then
        onItemSelected(menu)
    elseif key == keys.up then
        if selectedItem > 1 then selectedItem = selectedItem - 1 end
    elseif key == keys.down then
        if selectedItem < #menu then selectedItem = selectedItem +1 end
    end
end

function onItemSelected( menu )
    menu[selectedItem].handler()
end

function clear( ... )
    term.clear()
    term.setCursorPos(18,19)
    print("The menu is created by Matteo 2015")
    term.setCursorPos(1,1)
end



        --[[    Main function   ]]--
function main( ... )
    while runing do
        clear()
        term.setCursorPos(10, 4)
        printMenu(mainMenu)
        event, key = os.pullEvent("key")
        onKeyPressed(key, mainMenu)
    end
end

main()